JP7305974B2 - Fabric body manufacturing method - Google Patents

Description

The present invention relates to fabric bodies.

2. Description of the Related Art Conventionally, in body supports such as office chairs and automobile seats, body support surfaces such as backrests and seat surfaces are provided with cushioning properties to support the body in contact therewith. Such a body support surface having cushioning properties generally has a cover body made of woven fabric or knitted fabric arranged on the surface of the body support surface, and has a frame member such as a metal frame and an elastic foam such as urethane foam inside. It is often formed with a configuration in which a member is provided.

In recent years, it has become possible to provide good cushioning properties by using only a knitted or woven fabric and a frame member for the body support surface of the body support without incorporating a foamed elastic member such as urethane foam. Structured body supports have also been proposed. Specifically, for example, as in Patent Document 1, a chair in which an elastic fabric using elastic yarn is stretched over a frame member and used as a seat surface, and as in Patent Document 2, a three-dimensional knitted fabric is used as a frame member. Examples include stretched seats.

Japanese Unexamined Patent Application Publication No. 2001-303395 International Publication No. 2005/034684

For example, when one sits on a body-supporting surface in which a fabric is adhered to a substantially quadrilateral frame as in Patent Document 1, the amount of sinking is small, and if one continues to sit for a long time, pain may be felt on the ground surface. In addition, when sitting on a body support surface in which a three-dimensional knitted fabric is stretched on a frame as in Patent Document 2, the three-dimensional knitted fabric has an increased cushioning property due to its knitted structure and large thickness, and the pain on the ground surface is less likely to be felt. So, if you sit for a long time due to poor ventilation, you will feel stuffy.

Therefore, an object of the present invention is to provide an optimum amount of compressive deflection and excellent breathability leading to good sitting comfort when a fabric body is used as the body support surface of a body support. To provide a fabric body that has both.

In order to solve the above problems, the present invention has the following configurations. i.e.
(1) It has a fabric and a frame member, and at least a part of the fabric has a portion with an air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less, and at least in one direction. a fabric body that is stretched on the frame member in a state where tension is applied to the fabric, and has a deflection amount of 20 mm or more and 60 mm or less when a load of 400 N is applied to the center part of the fabric;
(2) The fabric is a knitted fabric, the knitted fabric contains 50% by mass or more of monofilaments relative to the entire fabric, and the knitting density in the weft (well) direction and the warp (course) direction of the fabric. (Number of stitches) is 20/25.4 mm or more and 60/25.4 mm or less, and the monofilament is a fiber containing a polyester elastomer having a fiber fineness of 500 dtex or more and 3000 dtex or less. body,
(3) The fabric body of (1) or (2), wherein the knitted fabric, which is the fabric, has a three-dimensional shape provided with a frame member insertion portion for holding the frame member,
(4) The frame member has an opening, and the ratio of the area of the portion having the air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less to the area of the opening (air permeability is 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less / opening area) is 0.5 or more,
(5) A seating seat using the fabric body according to any one of (1) to (4), wherein a portion of the fabric stretched over the frame member is arranged on at least one of the seat surface and the back surface. sitting seat,
(6) The method for manufacturing a fabric body according to any one of (1) to (4), which includes a step A and a step B, wherein the step A has a fiber fineness of 500 dtex or more and 3000 dtex or less, and , By knitting a fiber group containing monofilaments with a dry heat shrinkage of 5.0% or more and 50.0% or less, the knitting density (number of stitches) in the weft (well) direction is 15 / 25.4 mm or more 40 / 25.4 mm or less and a knitting density (number of stitches) in the warp (course) direction of 15/25.4 mm or more and 40/25.4 mm or less for obtaining a fabric, and the step B is the fabric is attached to the frame member, and then the fabric and the frame member are heat-treated at a temperature of 120 ° C. or more and 200 ° C. or less for a time of 5 minutes or more and 20 minutes or less.
(7) In the fabric body manufacturing method according to (6), in the step B, after attaching the fabric to the frame member, the fabric and the frame member are heated to a temperature of 150 ° C. or higher and 200 ° C. or lower. A method for manufacturing a fabric body, which comprises a step of heat-treating the fabric and the frame member at a temperature of 150° C. or higher and 200° C. or lower for 5 minutes or more and 15 minutes or less by applying hot air;
(8) In the fabric body manufacturing method according to (6), in the step B, after attaching the fabric to the frame member, the fabric and the frame member are heated to a temperature of 120 ° C. or higher and 160 ° C. or lower. A method for manufacturing a fabric body, which comprises a step of heat-treating the fabric and the frame member at a temperature of 120° C. or higher and 160° C. or lower for a time of 5 minutes or more and 20 minutes or less by applying steam;
(9) The fabric body manufacturing method according to (8), wherein the heat treatment in the step B is performed under an environment of -0.1 MPa or less.

According to the present invention, when a fabric body is used for the body support surface of a body support, the body support surface of the body support has both an optimal amount of compression deflection leading to good sitting comfort and excellent breathability. It is possible to provide a fabric body that becomes a product.

It is an upper plane conceptual diagram which shows one Embodiment of the fabric body of this invention. It is an upper plane conceptual diagram showing an example of one embodiment of a frame member in the present invention. It is a front conceptual diagram which shows one Embodiment of the frame member in this invention. 1 is an upper plan conceptual view showing an example of a fabric body having two different knitting structures according to the present invention; FIG. FIG. 2 is an upper plan conceptual diagram showing an example of a fabric body having three different knitting structures according to the present invention. 1. It is an upper plane conceptual diagram which shows an example of the fabric (three-dimensional-shaped fabric) used for the fabric body shown in FIG. FIG. 7 is a schematic BB′ longitudinal cross-sectional view of the three-dimensional shaped fabric shown in FIG. 6 ; FIG. 2 is a schematic longitudinal cross-sectional view of the fabric body shown in FIG. 1 along the line A-A'; FIG. 2 is a conceptual upper plan view showing an embodiment of a frame member having a partially detachable structure according to the present invention; 1 is a conceptual front view showing an embodiment of a frame member having a partially detachable structure according to the present invention; FIG. It is an upper plane conceptual diagram showing an example of one embodiment of a frame member in the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail. The fabric body of the present invention has a fabric and a frame member. In addition, at least a part of this fabric has a portion with an air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less, and the frame member is attached to the frame member in a state where tension is applied in at least one direction. The fabric is stretched, and the deflection amount is 20 mm or more and 60 mm or less when a load of 400 N is applied to the central portion of the fabric.

Here, although the frame member is not particularly limited, it should have strength enough to withstand the tension of the fabric when the fabric is fixed under tension in at least one direction. Specific examples include metals such as iron, aluminum, and titanium, and frame members made of carbon, wood, and plastic. Among them, a frame member made of metal or carbon is preferable from the point of view of high strength, and a frame member made of carbon is preferable from the viewpoint of reducing the weight of a body support such as a chair.

Further, the deflection amount when a load of 400 N is applied to the central portion of the fabric is 20 mm or more and 60 mm or less. By setting the amount of deflection of the central portion of the fabric to be 20 mm or more, in the body support device in which the fabric body forms the body support surface, the amount of deflection of the body support surface when a load is applied becomes optimal, and the body support surface is flexed to an optimum amount. The seating comfort of the support is excellent. For this reason, it is preferable that the amount of deflection is 25 mm or more. On the other hand, since the bending amount of the central portion of the fabric is 60 mm or less, the minimum elasticity of the body support surface can be maintained in the body support device in which the fabric body forms the body support surface. A body support using a fabric body as a body support surface, wherein the amount of deflection when a load of 400 N is applied to the central portion of the fabric stretched on the frame member is 20 mm or more and 60 mm or less. , the body support surface has both an appropriate fit and elasticity, and, for example, when a person sits on the body support, it becomes comfortable to sit on. Here, the central portion of the fabric means the center of gravity of the planar shape of the fabric. That is, for example, when the fabric has a polygonal shape, the center of gravity of the polygon is the center of the fabric.

At least part of the fabric of the fabric body of the present invention has a portion with an air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less. The lower limit of the air permeability of this portion of the fabric (hereinafter sometimes referred to as "at least a portion of the fabric") is 5 cm ³ /cm ² ·sec or more in order to maintain the minimum air permeability. In order to maintain good air permeability, it is preferably 15 cm ³ /cm ² ·sec or more, more preferably 20 cm ³ /cm ² ·sec or more. On the other hand, the upper limit of the air permeability of at least part of the fabric is 200 cm ³ /cm ² ·sec or less, preferably 180 cm ³ , in order to maintain the elasticity and strength of the part of the fabric stretched on the frame member. /cm ² ·sec or less, and more preferably 100 cm ³ /cm ² ·sec or less. By setting the air permeability of at least a part of the fabric within such a range, the fabric body having good air permeability, elasticity, and strength can be obtained. When one sits on the equipment, the feeling of stuffiness is reduced, and the body can be sufficiently supported. In addition, the area ratio of a portion of the fabric having an air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less to the area of the opening of the frame member having the opening (details will be described later) (air permeability is It is preferable that the ratio of the area of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less/the area of the opening) is 0.5 or more. By adopting such a configuration, the user's damp feeling is further eliminated in the seating seat using the fabric body of the present invention.

Next, the center portion of the fabric included in the fabric body of the present invention has a deflection amount of 20 mm or more and 60 mm or less when a load of 400 N is applied, and an air permeability of 5 cm ³ /cm ² ·sec or more and 200 cm ³ /. As a specific configuration example of the fabric that can be made to be cm ² ·sec or less, there can be mentioned a fabric that satisfies all the following conditions (i) to (iii). i.e.
(i) The fabric is a knitted fabric, and the knitted fabric contains 50% by mass or more of monofilament with respect to the entire knitted fabric.
(ii) The knitting density (number of stitches) in the weft (well) direction and warp (course) direction of the fabric is 20/25.4 mm or more and 60/25.4 mm or less, respectively.
(iii) The above monofilament is a fiber containing a polyester elastomer having a fiber fineness of 500 dtex or more and 3000 dtex or less.

The knitted fabric mentioned above is a concept that does not include a three-dimensional knitted fabric.

The details of each of the above conditions will be described later.

First, conditions (i) and (iii) above will be described. The fabric is a knitted fabric, and the knitted fabric contains 50% by mass or more of monofilaments of fibers containing a polyester elastomer having a fiber fineness of 500 dtex or more and 3000 dtex or less based on the total fibers constituting the knitted fabric. As described above, by using a knitted fabric containing 50% by mass or more of the monofilament of the fiber containing the polyester elastomer with respect to the total fibers constituting the knitted fabric, an appropriate amount of deflection and an appropriate amount of deflection are obtained when attached to the frame member. A knitted fabric exhibiting strength can be obtained. By stretching the knitted fabric on the frame member while tension is applied in at least one direction, the deflection amount when a load of 400 N is applied to a part of the knitted fabric (the center of the fabric) is 20 mm or more. The range is 60 mm or less. That is, the amount of deflection of the central portion of the fabric included in the fabric body of the present invention is 20 mm or more and 60 mm or less when a load of 400 N is applied.

In addition, the amount of deflection of the central portion of the fabric included in the fabric body of the present invention when a load of 400 N is applied is in the range of 20 mm or more and 60 mm or less, and the air permeability is 5 cm ³ /cm ² ·sec or more and 200 cm ³ /cm ² ·sec or less. In order to obtain a fabric that combines the above, it is necessary to have both a strength that can withstand load application and a knitting density that is air permeable, and for that reason, the fiber fineness of the monofilament, which is the fiber containing the above polyester elastomer, is 500 dtex or more. It is preferably 3000 dtex or less. Furthermore, the fiber fineness of the monofilament is preferably 600 dtex or more because the strength of the fabric is further improved. On the other hand, it is preferable that the monofilament has a fiber fineness of 2000 dtex or less for the reason that the monofilament has excellent process passability. Further, the fiber fineness of the above-mentioned monofilament is more preferably 1000 dtex or less for the reason that the flexibility of the body support surface of the body support using the fabric body having this fabric is more excellent.

Here, the polyester elastomer refers to a thermoplastic rubber elastic body having a polyester structure such as polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT). Moreover, the fiber containing the polyester elastomer may be a fiber consisting of the polyester elastomer alone, or may be a composite fiber consisting of the polyester elastomer and the polyester. Here, examples of the conjugate fibers include fibers with a core-sheath structure and fibers with a side-by-side structure. Here, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and the like are exemplified as the polyester used in combination with the polyester elastomer. In addition, when the fiber containing the polyester elastomer is a fiber with a core-sheath structure, the fiber with a core-sheath structure has a core made of a polyester elastomer and a sheath made of polyester, or a core made of polyester and a sheath It is preferably composed of a polyester elastomer.

Further, it goes without saying that the fabric included in the fabric body of the present invention may contain fibers other than the monofilaments described above. Examples of fibers other than the above monofilaments include multifilament synthetic fibers and multifilament natural fibers. Among them, polyester fiber multifilaments and polyamide fiber multifilaments are preferable. Used. The multifilament may be textured yarn subjected to processing such as false twisting, or may be spun yarn.

Next, the above condition (ii) will be described. The knitting density (number of stitches) in the weft (well) direction and the warp (course) direction of the fabric is 20 / 25.4 mm or more and 60 / 25.4 mm or less, respectively, so that when attached to the frame member A fabric (knitted fabric) having an appropriate amount of deflection and strength can be obtained. Specifically, the knitting density (number of stitches) in the weft (well) direction and the warp (course) direction of the fabric (knitted fabric) is 20/25.4 mm or more, respectively, so that the fabric included in the fabric body The amount of deflection is excellent. Further, when the knitting density (number of stitches) in the weft (well) direction and warp (course) direction of the fabric is 60/25.4 mm or less, respectively, the fabric has excellent air permeability. For the above reasons, the knitting density (number of stitches) in the weft (well) direction and the warp (course) direction of the fabric is more preferably 30/25.4 mm or more, respectively. The knitting density (number of stitches) in the warp (course) direction is more preferably 50/25.4 mm or less, more preferably 40/25.4 mm or less.

Next, the fabric of the present invention has a deflection amount of 20 mm or more and 60 mm or less when a load of 400 N is applied to the center of the fabric, and an air permeability of 5 cm ³ /cm ² ·sec or more and 200 cm ³ /cm. As a specific manufacturing method of the fabric body that can be ² ·sec or less, there can be mentioned a method that satisfies all of the following conditions (i) and (ii). i.e.
(i) By knitting a fiber group containing monofilaments having a fiber fineness of 500 dtex or more and 3000 dtex or less and a dry heat shrinkage rate of 5.0% or more and 50.0% or less, the knitting density in the weft (well) direction ( stitches) is 15 stitches/25.4 mm or more and 40 stitches/25.4 mm or less, and the knitting density (stitch number) in the warp (course) direction is 15 stitches/25.4 mm or more and 40 stitches/25.4 mm or less. Step A of obtaining the fabric.
(ii) A step B of treating the fabric and the frame member at a temperature of 120° C. or higher and 200° C. or lower for a time of 5 minutes or longer and 15 minutes or shorter after attaching the fabric to the frame member.
The above fabric is a knitted fabric containing 50% by mass or more of monofilament with respect to the entire fabric.

First, (i) will be explained. The step (i) is a step of obtaining a knitted fabric with a specific configuration. In this process, a fiber group containing monofilaments having a fiber fineness of 500 dtex or more and 3000 dtex or less and a dry heat shrinkage of 5.0% or more and 50.0% or less is used to obtain the above fabric. The fiber group contains monofilaments having a fiber fineness of 500 dtex or more and 3000 dtex or less, a fiber fineness of 500 dtex or more and 3000 dtex or less, and a dry heat shrinkage rate of 5.0% or more and 50.0% or less, After attaching this knitted fabric to the frame member as described in the step (ii), when heat treatment is performed, the knitted fabric shrinks and the knitting density (number of stitches) in the weft (well) direction of the knitted fabric ) and the knitting density (number of stitches) in the warp (course) direction are both increased. As a result, tension is generated in at least a portion of the knitted fabric attached to the frame member (a portion including the central portion of the fabric), so that the amount of deflection when a load of 400 N is applied to the central portion of the fabric is suitable. can be something Here, the means for adjusting the deflection amount when a load of 400 N is applied to the central portion of the fabric, that is, the means for adjusting the degree of tension generated in the fabric attached to the frame member are as follows. be done. That is, the ratio of the area of a part of the fabric attached to the opening of the frame member so as to close the opening to the area of the opening of the frame member after being attached to the frame member and before being subjected to heat treatment Adjusting can be exemplified. Adjustment of this ratio includes the content ratio of the above monofilament in the fiber group, the fiber fineness of the above monofilament, the dry heat shrinkage rate of the above monofilament, the knitting density (number of stitches) in the weft (well) direction of the knitted fabric, and the knitting Consider the knitting density (number of stitches) in the warp (course) direction of the ground. Here, the opening of the frame member will be explained with reference to FIG. 11 . The opening 13 of the frame member refers to the portion surrounded by the dashed line in FIG.

Here, the dry heat shrinkage rate of the fiber is determined by the material constituting the fiber and the fiber fineness of the fiber. Monofilaments having a dry heat shrinkage of 5.0% or more and 50.0% or less include fibers containing a polyester elastomer having a fiber fineness of 500 dtex or more and 3000 dtex or less.

In addition, by heat treatment, the knitting density (number of stitches) in the weft (well) direction of the knitted fabric is set to 20/25.4 mm or more and 60/25.4 mm or less, and the knitting density in the warp (course) direction of the knitted fabric. As described above, by setting the (number of stitches) to 20/25.4 mm or more and 60/25.4 mm or less, the fabric has excellent deflection and air permeability. In addition, as a means for adjusting the knitting density (number of stitches) in the weft (well) direction of the knitted fabric and the knitting density (number of stitches) in the warp (course) direction of the knitted fabric, tension generated in the fabric attached to the frame member A means similar to the means for adjusting the degree of can be employed.

As described above, the knitting density (number of stitches) in the weft (well) direction of the knitted fabric and the knitting density (number of stitches) in the warp (course) direction of the knitted fabric change before and after the heat treatment. Specifically, when heat treatment is performed on a knitted fabric having a knitting density (number of stitches) in the warp (course) direction: 28 lines / 25.4 mm and in the weft (well) direction: 35 lines / 25.4 mm, The knitting density (number of stitches) after heat treatment is warp (course) direction: 40 stitches / 25.4 mm, weft (well) direction: 40 stitches / 25.4 mm, but the knitting density (stitch number) at the time of knitting is warp (Course) direction: 27 strands/25.4 mm, weft (well) direction: 18 strands/25.4 mm. 31 lines/25.4 mm, weft (well) direction: 32 lines/25.4 mm, and the increase in the number of stitches after heat treatment can be adjusted by the knitting density (number of stitches) before heat treatment.

Next, the above step (ii) will be described. As described above, this step causes the knitted fabric attached to the frame member to contract, and the knitting density (stitch number) in the weft (well) direction and the knitting density (stitch number) in the warp (course) direction of the knitted fabric. number) and are intended to be high together. Therefore, by this step, tension is generated in at least a part of the knitted fabric attached to the frame member, and the knitting density (number of stitches) of this knitted fabric and the knitting density (number of stitches) in the warp (course) direction are high, the amount of deflection and air permeability when a load of 400 N is applied to the central portion of the fabric are excellent.

In addition, as the heat treatment conditions, it is necessary to give the fabric a heat quantity that is sufficient to cause shrinkage in the fabric and that does not cause discoloration or melting of the fabric. C. to 200.degree. C., and the treatment is preferably performed for 5 minutes to 20 minutes.

Here, the above heat treatment methods can be broadly classified into dry heat treatment, steam treatment, and submerged treatment. Dry heat treatment is heating by the heat of high-temperature air (hot air). Steam treatment involves heating with the heat of steam. Submersible treatment is heating mainly by the heat of a liquid such as water. In particular, since the submerged treatment applies heat while being immersed in water, this treatment method requires a subsequent drying step. On the other hand, dry heat treatment or steam treatment is preferable as the heat treatment because dry heat treatment or steam treatment does not require a subsequent drying step and production can be efficiently performed. Here, examples of dry heat treatment devices include explosion-proof hot air dryers and ovens, and examples of steam treatment devices include steam setters and vacuum batch setters. Here, the vacuum batch setter is a device that performs steam treatment while maintaining the inside of the pot in a vacuum state (specifically, a state in an environment of −0.1 MPa or less). By creating a vacuum state, the fabric body of the present invention can be obtained even with heat at a lower temperature than dry heat treatment, and the heat treatment can be performed without impairing the durability of the fibers used in the fabric. From the above points, heat treatment using a vacuum batch setter is more preferable.

Here, when the dry heat treatment is performed using hot air, after attaching the fabric to the frame member, the fabric and the frame member are put into a dry heat treatment apparatus, and hot air at a temperature of 150° C. or more and 200° C. or less is applied to the fabric and the frame member. Then, the fabric and the frame member are preferably heat-treated at a temperature of 150° C. or higher and 200° C. or lower for a period of 5 minutes or longer and 15 minutes or shorter. Sufficient heat can be applied to the fabric by setting the temperature of the hot air to 150°C or higher. On the other hand, by setting the temperature of the hot air to 200° C. or lower, it is possible to apply heat to the fabric more than necessary and prevent the threads forming the fabric from melting. In addition, by applying hot air for 5 minutes or more, the minimum amount of heat can be applied to the fabric, and by applying hot air for 15 minutes or less, heat is applied to the fabric more than necessary, It is possible to prevent the yarn constituting the from melting. When the threads forming the fabric are melted, the stitches are collapsed, which tends to lead to a decrease in the air permeability of the fabric and a decrease in the deflection amount of the fabric. On the other hand, when performing steam treatment with steam using a vacuum batch setter, after attaching the fabric to the frame member, the fabric and the frame member are put into the vacuum batch setter, and the heat treatment space is set to an environment of −0.1 MPa or less. (that is, in a vacuum state), steam at a temperature of 120° C. or higher and 160° C. or lower is applied to the fabric and the frame member, so that the fabric and the frame member are heated at a temperature of 120° C. or higher and 160° C. or lower for 5 minutes or more and 20 minutes or less. It is preferable to heat-treat for a period of . Sufficient heat can be applied to the fabric by setting the steam temperature to 120°C or higher. On the other hand, by setting the temperature of the steam to 160° C. or lower, it is possible to apply heat to the fabric more than necessary and to prevent the threads forming the fabric from melting. Similarly, by setting the steaming time to 5 minutes or more, the minimum amount of heat can be applied to the fabric body, and by setting the steaming time to 20 minutes or less, the fabric can be heated more than necessary. In addition, in order to obtain the fabric body of the present invention, the manufacturing method having the above step (i) and the above step (ii) In addition to (manufacturing method A), the following manufacturing method B can be used. That is, the manufacturing method B has a step of attaching the fabric to the frame member while pulling the fabric so that tension is applied to at least a part of the fabric attached to the frame member. In addition, in this manufacturing method B, the configuration of the fabric used (constituent fiber It is necessary to appropriately select the type of fabric, the type of fabric, the basis weight of the fabric, etc.) and how much the fabric is pulled when attaching the fabric to the frame member. Comparing the manufacturing method A and the manufacturing method B, it is easy to adjust the amount of deflection when a load of 400 N is applied to the central part of the fabric body and the air permeability of at least a part of the fabric body to a specific range. From this point of view, it is preferable to adopt the manufacturing method A.

Moreover, one embodiment of the fabric body of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual upper plan view showing one embodiment of the fabric body of the present invention. FIG. 6 is a schematic upper plan view of the three-dimensional fabric used in the fabric body shown in FIG. be. Further, FIG. 8 is a schematic longitudinal cross-sectional view of the fabric body shown in FIG. 1 along the line A-A'. FIG. 2 is a conceptual upper plan view showing an embodiment of the frame member 3, and FIG. 3 is a conceptual front view showing an embodiment of the frame member 3. As shown in FIG. A fabric body 1 shown in FIG. 1 has a three-dimensional fabric 7 shown in FIG. 6 and a frame member 3 shown in FIGS. Four sides of the three-dimensional fabric 7 are stretched on each of the four sides of the frame member 3, and the part 2 of this fabric is one of the four sides of the substantially quadrilateral frame member 3. The two sides facing each other are stretched on the frame member 3 while being tensioned in the mutually pulling directions.

Here, the frame member 3 is illustrated in FIGS. 2 and 3, and the cross-sectional shape of the frame member 3 when the frame member 3 shown in FIG. The frame member 3 shown in FIG. 2 was cut along BB' in order to distribute the load applied to the portion 2 of the fabric to the frame member when the fabric body was used as the body support surface of the body support. It is preferable that the cross-sectional shape of the frame member 3 at the time is substantially circular. Further, although the shape of the frame member is illustrated in FIG. 2, it is not limited to this shape and may be of any shape. Furthermore, FIG. 9 is a conceptual top view showing an embodiment of the frame member 3 having a partially detachable structure, and FIG. 10 is a conceptual front view showing an embodiment of the frame member having a partially detachable structure. In order to simplify the attachment work when attaching the frame member to the cloth, it is preferable to have a structure in which at least a portion thereof is removable. For example, as shown in FIGS. It is preferably provided with a possible portion 9 . Both ends of the frame member detachable portion 9 shown in FIG. By joining them together, the frame member 3 can be returned to the shape shown in FIG.

Here, means for attaching the fabric to the frame member will be described. As shown in FIGS. 1 and 7, this fabric has frame member inserts 8 at the ends. 1 and 8, by inserting the frame member 3 into the frame member insertion portion 8, the portion 2 of the fabric is attached to the frame member 3. As shown in FIGS. Moreover, as described above, when attaching the fabric to the frame member 3, as shown in FIG. The three-dimensional fabric 7 is attached to three sides excluding the detachable portion 9 of the frame member 3 through the frame member 3 from the joint indicated by . Next, the frame member detachable part 9 shown in FIG. The fabric can be easily attached to the frame member 3 by joining the concave portion 12 and the convex portion 11 provided at the joining portion 10 of the frame member 3 respectively.

Moreover, it is preferable that the fabric attached to the frame member has at least two regions in which at least one of the constituent yarn type and the constituent weave is different from each other. Here, FIG. 4 is a conceptual upper plan view showing an example of a fabric body having two different knitting structures according to the present invention, and FIG. 5 shows an example of a fabric body having three different knitting structures according to the present invention. It is an upper plane conceptual diagram. There are no particular restrictions on how to arrange the regions of the at least two or more portions, but for example, the portion into which the frame member 3 is inserted, which is the region indicated by reference numeral 4 in FIG. A fabric body having two different knitting structures can be exemplified, in which the area indicated by the reference numeral 5 in FIG. The region indicated by reference numeral 4 in FIG. 5 is the first texture, the region indicated by reference numeral 5 in FIG. 5 is the second texture, and the region indicated by reference numeral 6 in FIG. 5 is the third texture. A fabric body having different knitting structures can be exemplified. In this way, it is effective to mix different yarn types and/or different constituent structures in order to create different knitted structures. It is possible to generate a partial difference in tension and a difference in amount of compression deflection in a part stretched on the frame member.

Mixing of a plurality of constituent yarn types and/or a plurality of constituent structures as described above can be realized by designing for each region by forming knitting such as weft knitting. More specifically, when knitting the fabric, by partially changing the weft knitting machine and its gauge, and the material and thickness of the yarn used, the yarn type and structure differ from those of the surrounding adjacent parts. It is possible to obtain a fabric with two or more different regions. Furthermore, in the fabric body according to the present invention, for example, in the fabric forming the body support surface, a fabric having two or more different regions is created by switching the yarn type and fabric weave type according to each part, After attaching the fabric to the frame member, for example, by using the difference in shrinkage caused by applying heat setting at a temperature according to the material, desired properties such as elasticity at each part can be easily adjusted by a simple method. realizable. As a result, for example, when a person sits on the body support surface formed by the fabric body, it is possible to support the person in a more fitted state to the body. In this way, it is possible to change the elasticity, breathability, and tactile sensation of each part, so it is possible to give each part an optimal function, and it is also possible to change the color and texture, so it is possible to design. It is easy to add value on the surface.

Further, it is preferable that the fabric is a three-dimensional knitted fabric provided with a frame member insertion portion. Here, the three-dimensional knitted fabric is composed only of the knitted fabric, and at least a part of the knitted fabric is provided with a cylindrical body having a hollow inside, as shown by 8 in FIG. A frame member can be inserted into the inner side of the hollow tubular body. Since the knitted fabric has a three-dimensional shape provided with the frame member insertion portion, the work of attaching the fabric to the frame member is simplified. Also, in order to make the frame member mounting work easier, the inner diameter of the frame member inserting portion is preferably larger than the outer diameter of the frame member cut along the BB' longitudinal section in FIG.

Furthermore, as described above, after the knitted fabric is knitted, it is attached to the frame member as it is, and then, for example, by performing heat treatment, when the fabric body is used as the body support surface of the body support, the body support surface can easily have elasticity. It is possible to have Here, there are no restrictions on the method of creating the frame member inserting portion, but there are methods of knitting the fabric and then sewing to create the frame member inserting portion, and methods of knitting the frame member inserting portion integrally at the time of knitting the fabric. method. Among these methods, the method of knitting the frame member insertion portion integrally with the knitting of the fabric is particularly preferable in that the production efficiency can be improved. A three-dimensional knitted fabric integrally provided with such a frame member insertion portion can be knitted using a weft knitting machine. Here, the weft knitting structure is not particularly limited, but for example, a jersey structure, a garter structure, a smooth structure, a rib structure, or the like can be used. Here, in the case where the frame member insertion portion is also knitted integrally when the fabric is knitted, the frame member insertion portion may have the same knitting structure and/or the same type of yarn as the portions other than the frame member insertion portion. can be different.

In addition, although the use of the fabric body according to the present invention is not particularly limited, a part of the fabric stretched on the frame member may be arranged on at least one of the seat surface and the back surface of the seating seat (body support). mentioned. Specifically, it is preferably used on the seat surfaces and back surfaces of office chairs, car seats, railroad vehicle seats, and the like. According to the fabric body according to the present invention, when supporting an object to be supported such as a person, it can be partially submerged deeply, or conversely, the support can be supported by the surface without being deeply submerged. The width of the design in is greatly expanded.

Furthermore, when the fabric body is arranged on at least one of the seat surface and the back surface of the seating seat (body support), the combustibility of the fabric arranged on the body support surface is 100 mm / min in each of the vertical direction and the horizontal direction. The following are preferable. The flammability of the fabric placed on the body support surface is 100 mm/min or less, so that in the event of an accident or other accident, the fire will not spread to the people sitting on the seat and surrounding materials. becomes. Here, a fabric having a combustibility of 100 mm/min or less is obtained by fabricating a knitted fabric composed of fibers having flame retardancy. For example, there is a method in which a knitted fabric used for a three-dimensional fabric is composed of monofilaments to which a flame retardant is applied.

Further, when the fabric body is disposed on at least one of the seat surface and the back surface of the seating seat (body support), the body support surface preferably has a pilling resistance of grade 4 or higher. Here, those with grades 4 and 5 of pilling property are judged to be "no pilling". It is possible to obtain a sitting seat which does not change its appearance and maintains its beauty. Here, the fabric whose body support surface has a pilling property of grade 4 or higher is made of a knitted fabric with a material structure and a knitted structure in which monofilaments and twisted multifilaments, which are resistant to surface abrasion, are exposed on the surface of the fabric. Is possible.

Further, when the fabric body is disposed on at least one of the seat surface and the back surface of the seating seat (body support), the weight loss after abrasion of the fabric disposed on the body support surface is preferably 10 mg or less. . Since the weight loss after abrasion of the fabric placed on the body support surface is 10 mg or less, for example, when the fabric body according to the present invention is used for a car seat, it is possible to sit continuously for a long time and for a long time. Furthermore, it is possible to obtain a durable seating seat without the fabric of the body supporting surface being worn out. Here, the fabric that has a weight loss of 10 mg or less after abrasion of the fabric placed on the body support surface is a material in which a monofilament or twisted multifilament that is resistant to surface abrasion is exposed on the body support surface side of the fabric. It is possible to create a knitted fabric with a structure and knitting structure.

When the fabric body is arranged on at least one of the seat surface and the back surface of the seating seat, the maximum strength of the fabric arranged on the body support surface in the vertical direction and the horizontal direction is 700 N or more and the maximum elongation is 30% or more. is preferred. The maximum strength in the vertical and horizontal directions of the fabric placed on the body support surface is 700 N or more, and the maximum elongation is 30% or more, so that when a person sits on the body support surface, the fabric has sufficient strength and elasticity. You can get a sitting seat to hold. Here, as a method for producing a fabric having a maximum strength of 700 N or more in the vertical direction and a horizontal direction of the fabric placed on the body support surface and a maximum elongation of 30% or more, there are methods using elastic monofilaments, , and a method of adjusting the knitting structure, knitting density, and other structural structures. At least one of the two methods described above, or a combination of both, makes it possible to obtain a fabric with appropriate maximum strength and maximum elongation.

In addition, when the fabric body is arranged on at least one of the seat surface and the back surface of the seating seat (body support), the elongation rate of the fabric arranged on the body support surface in the vertical direction and the horizontal direction is 10% or more. is preferred. Since the elongation rate of the fabric placed on the body support surface is 10% or more in each of the vertical and horizontal directions, the fabric of the body support surface stretches when the user sits on the seat, making it difficult to feel pain even after sitting for a long time. You can get a sheet for Here, as a method of obtaining a fabric having an elongation rate of 10% or more in the vertical direction and the horizontal direction, there are a method of using an elastic monofilament, and a method of adjusting the structural structure such as knitting structure and knitting density. be done. At least one of the two methods described above, or a combination of both, makes it possible to obtain a fabric with appropriate maximum strength and maximum elongation.

The measurement method used in this example will be described later.

(Amount of deflection when 400N weight is applied)
For a fabric body having a fabric stretched over a frame member, the deflection amount when a load of 400 N is applied is measured using a sheet static load deflection tester FGS-TV manufactured by Nidec-Shimpo Corporation. Specifically, the fabric is stretched over the metal frame member to obtain the fabric body. Next, the fabric body is placed on a fixing jig with a height of 30 cm, and a horizontally long elliptical pressure plate having a width of 250 mm × 300 mm is applied so that the center of the load of the pressure plate overlaps the center part of the fabric. An initial load of 5N is applied, and the load center of the pressure plate at this time is taken as the origin. First, as precompression, a load is applied to 900 N at a speed of 50 mm / min, then unloaded at a speed of 50 mm / min, left for 1 minute, and similarly loaded to a load of 900 N at a speed of 50 mm / min. , unload, and measure the amount of deflection from the origin when each load is applied. As used herein, "amount of deflection when a load of 400 N is applied" refers to the amount of deflection from the origin when a load of 400 N is applied to the fabric body. Here, there is no particular restriction on the directionality of the fabric when fixing the fabric body on the frame fixing jig, and either the vertical direction or the horizontal direction may be used.

(Permeability)
Measured based on JIS L 1096 (8.27.1) (2010) A method (Fragile method). A test piece of 20 cm x 20 cm is taken from five different places on the fabric and attached to one end (intake side) of a cylinder using a Frazier tester. When attaching the test piece, the test piece is placed on the cylinder, and a load of about 98 N (10 kgf) is evenly applied from the top of the test piece so as not to block the intake part, preventing air leakage at the mounting portion of the test piece. After attaching the test piece, the intake fan was adjusted by the rheostat so that the tilt-type barometer indicated a pressure of 125 Pa, and from the pressure indicated by the vertical-type barometer at that time and the type of air hole used, The amount of air passing through the test piece is obtained from the table attached to the tester, and the average value for the five test pieces is calculated.

(Dry heat shrinkage rate)
Measure based on JIS L 1013 (8.18.2) (2010) B method (filament shrinkage). Apply an initial load to the sample, accurately measure 500 mm, mark 2 points, remove the initial load, hang it in a dryer set at 185° C. for 15 minutes, and then take it out. After cooling to room temperature, the initial load is applied again, the length (mm) between the two points is measured, and dry heat shrinkage is performed by the following formula ((500-length between the two points after heat treatment)/500 x 100). Calculate the rate (%) and calculate the average value of 5 times. Here, the initial load is set according to JIS L1013 (8.5.1) according to the fiber fineness of the sample.

(Combustibility of fabric)
Three test pieces each having a length of 250 mm and a width of 120 mm are sampled from the cloth at random in each of the vertical and horizontal directions. Next, based on FMVSS 302 (horizontal method), the test piece is sandwiched with a special jig, placed horizontally, and a 38 mm flame is applied to the end for 15 seconds, until the distance from the A mark to the B mark reaches 254 mm. If it does not reach the B mark, measure the burning distance (mm) and the burning time (seconds). In addition, when it does not reach the A mark, the burning distance is recorded as 0 mm and the burning time is recorded as 0 seconds. Then, from the measured burning time and burning distance, the burning velocity is calculated for each of the vertical and horizontal directions of the fabric using Equation 1 below. Here, the term "fabric combustibility" refers to the average value of the burning rates of three test pieces in each of the vertical and horizontal directions of the fabric. Here, when the calculated average of the burning speed in the vertical and horizontal directions is 0 mm / min, ⊙, when it is in the range of 0 mm / min to 100 mm / min or less, and when it exceeds 100 mm / min, × It was evaluated in three stages as. Formula 1 Burning speed (mm/min) = Burning distance (mm)/burning time (seconds) x 60
(Pilling property of fabric)
Three specimens each having a diameter of 140 mm for the specimen holder and three specimens having a diameter of 140 mm for the pilling table are randomly taken from the fabric. Next, an abrasion test is performed 4000 times with a load of 415 g using a Martindale tester based on the ISO 12945-2 Martindale method. After that, class determination is performed to determine the pilling property. Here, the "pilling property of fabric" refers to the average value of the grade judgment results of three test pieces. Here, if the average of the grade determination results was grade 4 or higher, it was evaluated as "no pilling", and if it was less than grade 4, it was evaluated as "with pilling".

(Weight loss after abrasion of fabric; abrasion resistance)
Two test pieces with a diameter of 40 mm are randomly taken from the fabric. Next, based on the ISO 12947-2 Martindale method, a 50,000-cycle wear test is performed at a pressing load of 12 kPa using a Martindale tester. The weight of the test piece is measured before and after the abrasion test, and the weight loss (mg) after the abrasion test is measured. Here, "weight loss after abrasion of fabric" refers to the average value of weight loss of two test pieces. Here, evaluation is made on a two-level scale, with ◯ when the calculated average weight loss after abrasion is 10 mg or less, and x when it is 10 mg or more.

(Maximum strength and maximum elongation of fabric)
Three test pieces each in the vertical direction and the horizontal direction are randomly sampled from the fabric. Next, using a tensile tester according to ISO 13934-1, a tensile test is performed at a gripping distance of 200 mm and a tensile speed of 100 mm/min until the test piece breaks. The maximum strength (N) and maximum elongation (%) at that time are measured. Here, the "maximum strength and maximum elongation of the fabric" refer to the average values of three test pieces taken in the vertical and horizontal directions.

(Elongation rate of fabric)
Three test pieces each in the vertical and horizontal directions are randomly sampled from the fabric. Next, based on DIN15977, the test piece is marked with a pen so that the distance between the gauge lines is 100 mm, a load of 125 N is applied using a tensile tester, and the test piece is left as it is for 30 minutes. Immediately after 30 minutes have passed, the distance between the marked lines is measured, and the elongation rate is calculated by the following formula 2. Here, the "elongation rate of the fabric" refers to the average value of three test pieces taken in the vertical direction and the horizontal direction.
Formula 2 Elongation rate (%) = (Distance between marked lines after 30 minutes of weighting (mm) - 100 (mm)) / 100 x 100
(Example 1)
610 dtex monofilament with a dry heat shrinkage rate of 26.6% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloth A with 40 strands/25.4 mm and 40 strands/25.4 mm, respectively, was obtained.

Next, the edges of the fabric A are supported and attached by a metal frame member having an inner frame size of 500 mm x 500 mm, and the fabric body A is subjected to dry heat treatment (185 ° C. x 15 minutes) to cause shrinkage to the fabric. was prepared, and the deflection amount of the fabric body A when a load of 400 N was applied and the air permeability of the fabric body A were measured.

As a result, the deflection amount of the fabric body A when a load of 400 N was applied was 41 mm, and the air permeability of the fabric body A was 57 cm ³ /cm ² ·sec.
Here, Table 1 summarizes the characteristics of the fabric body A using the fabric A (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Example 2)
610 dtex monofilament with a dry heat shrinkage rate of 26.6% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloth B with 45 strands/25.4 mm and 41 strands/25.4 mm, respectively, was obtained.

Next, the edge of the fabric B is supported and attached by the frame member shown in FIG. A woven fabric body B was prepared, and the amount of deflection of the fabric body B when a load of 400 N was applied and the air permeability of the fabric body B were measured.

As a result, the deflection amount of the fabric body B when a load of 400 N was applied was 50 mm, and the air permeability of the fabric body B was 40 cm ³ /cm ² ·sec.
Here, Table 1 summarizes the characteristics of the fabric body B using the fabric B (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Example 3)
610 dtex monofilament with a dry heat shrinkage rate of 26.6% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloth C with 35 strands/25.4 mm and 31 strands/25.4 mm, respectively, was obtained.

Next, the edge of the fabric C is supported and attached by the frame member shown in FIG. A woven fabric body C was prepared, and the amount of deflection of the fabric body C when a load of 400 N was applied and the air permeability of the fabric body C were measured.

As a result, the deflection amount of the fabric body C when a load of 400 N was applied was 43 mm, and the air permeability of the fabric body C was 28 cm ³ /cm ² ·sec.
Here, Table 1 summarizes the characteristics of the fabric body C using the fabric C (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 4)
610 dtex monofilament with a dry heat shrinkage rate of 26.6% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of 167 detx false twisted polyester yarn, a double fabric is knitted using a weft knitting machine, and the warp (course) direction and weft (well) direction after heat treatment of a part stretched on the frame member of the fabric. A fabric D having a knitting density of 38/25.4 mm and 33/25.4 mm, respectively, was obtained.

Next, the edge of the fabric D is supported and attached by the frame member shown in FIG. A woven fabric body D was prepared, and the amount of deflection of the fabric body D when a load of 400 N was applied and the air permeability of the fabric body D were measured.

As a result, the deflection amount of the fabric body D when a load of 400 N was applied was 46 mm, and the air permeability of the fabric body D was 18 cm ³ /cm ² ·sec.

Here, Table 1 summarizes the characteristics of the fabric body D using the fabric D (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 5)
610 dtex monofilament with a dry heat shrinkage rate of 26.6% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloth E with 33 strands/25.4 mm and 26 strands/25.4 mm, respectively, was obtained.

Next, the edge of the fabric E is supported and attached by the frame member shown in FIG. A woven fabric body E was prepared, and the amount of deflection of the fabric body E when a load of 400 N was applied and the air permeability of the fabric body E were measured.

As a result, the deflection amount of the fabric body E when a load of 400 N was applied was 49 mm, and the air permeability of the fabric body E was 65 cm ³ /cm ² ·sec.

Here, Table 2 summarizes the characteristics of the fabric body E using the fabric E (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Example 6)
760 dtex monofilament with a dry heat shrinkage rate of 35.7% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics F with 31 strands/25.4 mm and 32 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric F is supported and attached by the frame member shown in FIG. A woven fabric body F was prepared, and the amount of deflection of the fabric body F when a load of 400 N was applied and the air permeability of the fabric body F were measured.

As a result, the deflection amount of the fabric body F when a load of 400 N was applied was 47 mm, and the air permeability of the fabric body F was 64 cm ³ /cm ² ·sec.

Here, Table 2 summarizes the characteristics of the fabric body F using the fabric F (the yarn type and fineness used, the knitting density, the amount of deflection when a load of 400 N is applied, the air permeability, etc.).

(Example 7)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics G with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric G is supported and attached by the frame member shown in FIG. A woven fabric body G was prepared, and the amount of deflection of the fabric body G when a load of 400 N was applied and the air permeability of the fabric body G were measured.

As a result, the deflection amount of the fabric body G when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body G was 162 cm ³ /cm ² ·sec.

Here, Table 2 summarizes the characteristics of the fabric body G using the fabric G (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Example 8)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloths H with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric H is supported and attached by the frame member shown in FIG. A woven fabric body H was prepared, and the amount of deflection of the fabric body H when a load of 400 N was applied and the air permeability of the fabric body H were measured.

As a result, the deflection amount of the fabric body H when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body H was 162 cm ³ /cm ² ·sec.

Here, Table 3 summarizes the characteristics of the fabric body H using the fabric H (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 9)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloth I with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, was obtained.

Next, the edge of the fabric I is supported and attached by the frame member shown in FIG. A woven fabric body I was prepared, and the amount of deflection of the fabric body I when a load of 400 N was applied and the air permeability of the fabric body I were measured.

As a result, the deflection amount of the fabric body I when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body I was 162 cm ³ /cm ² ·sec.

Here, Table 3 summarizes the characteristics of the fabric body I using the fabric I (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 10)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloths J with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric J is supported and attached by the frame member shown in FIG. A fabric body J in which shrinkage was exhibited at 100°C was prepared, and the amount of deflection of the fabric body J when a load of 400 N was applied and the air permeability of the fabric body J were measured.

As a result, the deflection amount of the fabric body J when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body J was 162 cm ³ /cm ² ·sec.

Here, Table 3 summarizes the characteristics of the fabric body J using the fabric J (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 11)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics K with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric K is supported and attached by the frame member shown in FIG. A fabric body K in which shrinkage was exhibited at 100°C was prepared, and the amount of deflection of the fabric body K when a load of 400 N was applied and the air permeability of the fabric body K were measured.

As a result, the deflection amount of the fabric body K when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body K was 162 cm ³ /cm ² ·sec.

Here, Table 4 summarizes the characteristics of the fabric body K using the fabric K (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 12)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics L with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric L is supported and attached by the frame member shown in FIG. A fabric body L in which shrinkage was exhibited at 100°C was prepared, and the amount of deflection of the fabric body L when a load of 400 N was applied and the air permeability of the fabric body L were measured.

As a result, the deflection amount of the fabric body L when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body L was 162 cm ³ /cm ² ·sec.

Here, Table 4 summarizes the characteristics of the fabric body L using the fabric L (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 13)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics M with 28 strands/25.4 mm and 30 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric M is supported and attached by the frame member shown in FIG. A fabric body M in which shrinkage was exhibited at 100°C was prepared, and the amount of deflection of the fabric body M when a load of 400 N was applied and the air permeability of the fabric body M were measured.

As a result, the deflection amount of the fabric body M when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body M was 162 cm ³ /cm ² ·sec.

Here, Table 4 summarizes the characteristics of the fabric body M using the fabric M (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 14)
A 1400 detx polyester elastomer fiber with a dry heat shrinkage of 35.4% is used as a connecting yarn, and a double yarn of 167 detx false twisted polyester yarn is used as a base yarn, knitted using a warp knitting machine, and a frame member of the fabric. The knitting densities in the warp (course) direction and weft (well) direction after heat treatment of a part stretched on the wire are 14 / 25.4 mm and 12 / 25.4 mm, respectively, and the number of connecting yarns is 7. A three-dimensional knitted fabric O having a thickness of /25.4 mm was obtained.

Next, the edge of the fabric O is supported and attached by the frame member shown in FIG. A woven fabric body O was prepared, and the amount of deflection of the fabric body I when a load of 400 N was applied and the air permeability of the fabric body O were measured.

As a result, the deflection amount of the fabric body O when a load of 400 N was applied was 55 mm, and the air permeability of the fabric body O was 13 cm ³ /cm ² ·sec.

Here, Table 5 summarizes the characteristics of the fabric body O using the fabric O (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Example 15)
2000 dtex polyester elastomer fibers with a dry heat shrinkage of 35.2% are used as wefts, and 800 dtex polyester fibers are used as warps to create a woven fabric. A woven fabric P having densities in the course direction and weft (well) direction of 35/25.4 mm and 28/25.4 mm, respectively, was obtained.

Next, the edge of the fabric P is supported and attached by the frame member shown in FIG. A woven fabric P was prepared, and the amount of deflection of the fabric P when a load of 400 N was applied and the air permeability of the fabric P were measured.

As a result, the deflection amount of the fabric body P when a load of 400 N was applied was 30 mm, and the air permeability of the fabric body P was 8 cm ³ /cm ² ·sec.

Here, Table 5 summarizes the characteristics of the fabric body P using the fabric P (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Comparative example 1)
A warp (course) after a partial heat treatment that is knitted using a weft knitting machine using only two-ply yarns of false twisted polyester yarn of 167 detx with a dry heat shrinkage of 7.0% and stretched on the frame member of the fabric. A fabric N having knitting densities of 40/25.4 mm and 40/25.4 mm in the direction and the weft (well) direction, respectively, was obtained.

Next, the edge of the fabric N is supported and attached by the frame member shown in FIG. A woven fabric body N was prepared, and the amount of deflection of the fabric body N when a load of 400 N was applied and the air permeability of the fabric body N were measured.

As a result, the deflection amount of the fabric body N when a load of 400 N was applied was 18 mm, and the air permeability of the fabric body N was 57 cm ³ /cm ² ·sec.

Here, Table 5 summarizes the characteristics of the fabric body N using the fabric N (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Comparative example 2)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics Q of 33/25.4 mm and 62/25.4 mm, respectively, were obtained.

Next, the edge of the fabric Q is supported and attached by the frame member shown in FIG. A woven fabric Q was prepared, and the amount of deflection of the fabric Q and the air permeability of the fabric Q when a load of 400 N was applied were measured.

As a result, the deflection amount of the fabric body Q when a load of 400 N was applied was 18 mm, and the air permeability of the fabric body Q was 100 cm ³ /cm ² ·sec.

Here, Table 5 summarizes the characteristics of the fabric body Q using the fabric Q (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Comparative Example 3)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics R of 25/25.4 mm and 35/25.4 mm, respectively, were obtained.

Next, the edge of the fabric R is supported and attached by the frame member shown in FIG. A woven fabric body R was prepared, and the amount of deflection of the fabric body R when a load of 400 N was applied and the air permeability of the fabric body R were measured.

As a result, the deflection amount of the fabric body R when a load of 400 N was applied was 62 mm, and the air permeability of the fabric body R was 182 cm ³ /cm ² ·sec.

Here, Table 5 summarizes the characteristics of the fabric body R using the fabric R (type of yarn used, fineness, knitting density, deflection amount and air permeability when a load of 400 N is applied, etc.).

(Comparative Example 4)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics S with 23 strands/25.4 mm and 35 strands/25.4 mm, respectively, were obtained.

Next, the edge of the fabric S is supported and attached by the frame member shown in FIG. A woven fabric body S was prepared, and the amount of deflection of the fabric body S when a load of 400 N was applied and the air permeability of the fabric body S were measured.

As a result, the deflection amount of the fabric body S when a load of 400 N was applied was 65 mm, and the air permeability of the fabric body R was 184 cm ³ /cm ² ·sec.

Here, Table 6 summarizes the characteristics of the fabric body S using the fabric S (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Comparative Example 5)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics T of 33/25.4 mm and 62/25.4 mm, respectively, were obtained.

Next, the edge of the fabric T is supported and attached by the frame member shown in FIG. A fabric body T in which shrinkage was expressed at 100°C was prepared, and the amount of deflection of the fabric body T when a load of 400 N was applied and the air permeability of the fabric body T were measured.

As a result, the deflection amount of the fabric body T when a load of 400 N was applied was 17 mm, and the air permeability of the fabric body T was 108 cm ³ /cm ² ·sec.

Here, Table 6 summarizes the characteristics of the fabric body T using the fabric T (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Comparative Example 6)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Fabrics U of 25/25.4 mm and 35/25.4 mm, respectively, were obtained.

Next, the edge of the fabric U is supported and attached by the frame member shown in FIG. A fabric body U in which shrinkage was expressed at 100°C was prepared, and the amount of deflection of the fabric body U when a load of 400 N was applied and the air permeability of the fabric body U were measured.

As a result, the deflection amount of the fabric body U when a load of 400 N was applied was 62 mm, and the air permeability of the fabric body U was 182 cm ³ /cm ² ·sec.

Here, Table 6 summarizes the characteristics of the fabric body U using the fabric U (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

(Comparative Example 7)
771 dtex monofilament with a dry heat shrinkage of 37.2% using flame-retardant "Hytrel" (registered trademark), which is a flame-retardant polyester elastomer fiber, as a monofilament that accounts for 50% by mass or more, and other fibers Using two-ply yarn of false twisted polyester yarn of 167 detx, it is knitted using a weft knitting machine, and the knitting density in the warp (course) direction and the weft (well) direction after heat treatment of a part stretched on the frame member of the fabric is Cloths V of 23/25.4 mm and 35/25.4 mm, respectively, were obtained.

Next, the edge of the fabric V is supported and attached by the frame member shown in FIG. A fabric body V in which shrinkage was exhibited at 100°C was prepared, and the amount of deflection of the fabric body V when a load of 400 N was applied and the air permeability of the fabric body V were measured.

As a result, the deflection amount of the fabric body V when a load of 400 N was applied was 65 mm, and the air permeability of the fabric body V was 184 cm ³ /cm ² ·sec.

Here, Table 6 summarizes the characteristics of the fabric body V using the fabric V (type of yarn used, fineness, knitting density, amount of deflection when a load of 400 N is applied, air permeability, etc.).

1: Cloth body 2: Part of the fabric stretched on the frame member with tension applied in at least one direction 3: Frame member 4: First weave 5: Second weave 6: Third weave 7: Three-dimensional fabric 8: Frame member insertion portion 9: Frame member removable portion 10: Joint portion 11: Convex portion 12: Concave portion 13: Frame member opening

Claims (6)

having a fabric and a frame member,
At least a portion of the fabric has a portion with an air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less, and is stretched on the frame member under tension in at least one direction. is set,
The amount of deflection when a load of 400 N is applied to the center of the fabric is 20 mm or more and 60 mm or less,
The fabric is a knitted fabric,
The knitted fabric contains 50% by mass or more of monofilament with respect to the entire fabric,
The knitting density (number of stitches) in the weft (well) direction and warp (course) direction of the fabric is 20/25.4 mm or more and 60/25.4 mm or less, and the monofilament has a fiber fineness of 500 dtex or more. A method for producing a fabric, which is a fiber containing a polyester elastomer of 3000 dtex or less,
having a step A and a step B;
The step A knits a fiber group containing a monofilament having a fiber fineness of 500 dtex or more and 3000 dtex or less and a dry heat shrinkage rate of 5.0% or more and 50.0% or less. The knitting density (number of stitches) is 15 stitches/25.4 mm or more and 40 stitches/25.4 mm or less, and the knitting density (stitch number) in the warp (course) direction is 15 stitches/25.4 mm or more and 40 stitches/25.4 mm or less. A step of obtaining a fabric that is
The step B is a step of heat-treating the fabric and the frame member at a temperature of 120° C. to 200° C. for 5 minutes to 20 minutes after attaching the fabric to the frame member. manufacturing method. 2. The method of manufacturing a fabric body according to claim 1, wherein the knitted fabric, which is the fabric, has a three-dimensional shape provided with a frame member insertion portion for holding the frame member. The frame member has an opening, and the ratio of the area of the portion having the air permeability of 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less to the area of the opening (the air permeability is 5 cm ³ /cm ² /sec or more and 200 cm ³ /cm ² /sec or less/area of opening ) is 0.5 or more. The method for manufacturing the fabric body according to any one of claims 1 to 3 ,
In the step B, after attaching the fabric to the frame member, hot air at a temperature of 150 ° C. or higher and 200 ° C. or lower is applied to the fabric and the frame member, so that the fabric and the frame member are heated to 150 ° C. or higher and 200 ° C. A method for producing a fabric body, which is a step of heat-treating at the following temperature for 5 minutes or more and 15 minutes or less. The method for manufacturing the fabric body according to any one of claims 1 to 3 ,
In the step B, after attaching the fabric to the frame member, the fabric and the frame member are heated to 120°C or higher and 160°C by applying steam at a temperature of 120°C or higher and 160°C or lower to the fabric and the frame member. A method for producing a fabric body, which is a step of heat-treating at the following temperature for 5 minutes or more and 20 minutes or less. 6. The method for manufacturing a fabric body according to claim 5 , wherein the heat treatment in step B is performed under an environment of -0.1 MPa or less.

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