JP7757858B2 - Manufacturing method for seamless products and manufacturing jig for seamless products - Google Patents

Description

This disclosure relates to a method for manufacturing seamless products and a jig for manufacturing seamless products.

In recent years, seamless products manufactured by bonding fabrics together using adhesives have been gaining attention in the field of clothing such as innerwear and sportswear. These seamless products are typically manufactured by applying adhesive to the fabric using an application device, typically a dispenser, aligning the fabric, and then pressing the fabric together (see, for example, Patent Document 1).

International Publication No. WO2020/049679

However, with this conventional method, gluing the edges of the folded-over portions of the fabric requires manual alignment of the folded edges, which can lead to the production of defective products with misaligned glue positions. Furthermore, trying to improve the precision of the gluing position increases the time required to align the fabric, making it difficult to increase productivity.

This disclosure was made in consideration of the above circumstances, and aims to provide a method for manufacturing seamless products and a jig for manufacturing seamless products that can reduce defects in the bonding position of fabric edges and improve productivity.

Specific means for achieving the above object are as follows.
<1>
a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface;
an adhesive layer forming step of forming an adhesive layer on the fabric;
a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer;
A method for manufacturing a seamless product, comprising:
<2>
the high-friction body has a guide portion that aligns the fabric with the high-friction body,
The method for manufacturing a seamless product described in <1>, wherein the fabric placement process is a process in which an end of the fabric is placed on the high-friction body along the guide portion, and the fabric is placed on the placement surface.
<3>
the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface,
In the fabric placement step, an end of the fabric is placed on the first surface of the high-friction body,
The method for manufacturing a seamless product according to <1> or <2>, wherein in the fabric folding step, the high-friction body is turned inside out and placed with the second surface facing upward.
＜4＞
The fabric is a fabric for a seamless garment having a front body and a back body,
the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body;
<3> The method for manufacturing a seamless product according to any one of <1> to <3>, wherein the fabric folding step is a step of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body.
<5>
The installation surface is configured as an installation surface of a first jig,
<4> The method for manufacturing a seamless product according to any one of <1> to <4>, wherein the fabric placement step is a step of placing a high-friction body, the high-friction body having a friction coefficient set to be larger than that of the placement surface, on an installation surface of the first jig, and then overlapping an end of the fabric on the high-friction body, and placing the fabric on the first jig.
＜6＞
The method for manufacturing a seamless product described in <5> further includes, after the fabric placement step, a fabric pressing step of placing a second jig on top of the first jig and sandwiching and pressing the fabric between the first jig and the second jig.
＜７＞
a surface on which the fabric is placed;
a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface;
The high-friction body is turned inside out with the ends of the fabric overlapped, so that the ends of the fabric folded over the high-friction body are overlapped on an adhesive layer formed on the fabric. This is a jig for manufacturing seamless products.

This disclosure provides a method for manufacturing seamless products and a jig for manufacturing seamless products that can reduce defects in the bonding position of fabric edges and improve productivity.

1 is a schematic diagram showing a manufacturing jig and a manufacturing device for a seamless product according to an embodiment of the present invention. FIG. 10 is a plan view showing a state in which a high-friction body is placed on the fabric placement surface. FIG. 10 is a plan view showing a state in which the fabric is placed on the high-friction body and the first jig. FIG. 10 is a plan view showing a state in which a second jig is placed on top of a first jig. 1A to 1G are schematic diagrams illustrating the steps of a method for manufacturing a seamless product using a manufacturing jig. 10A and 10B are cross-sectional views showing a modified example of the folding process according to this embodiment, in which (A) shows the state before the fabric is folded, and (B) shows the state after the fabric has been folded. 10A and 10B are schematic diagrams illustrating modified examples of the installation surface on which the high-friction body is placed.

Hereinafter, embodiments of the present disclosure will be described. However, the present disclosure is not limited to the following embodiments. In the following embodiments, components (including element steps, etc.) are not essential unless otherwise specified. The same applies to numerical values and their ranges, and do not limit the present disclosure.
In this disclosure, the term "layer" encompasses a configuration of a shape formed on a part of a surface as well as a configuration of a shape formed on the entire surface when observed in a plan view. Also, in this specification, a "layer" may be referred to as a "film."
In this disclosure, the term "process" includes not only a process that is independent of other processes, but also a process that cannot be clearly distinguished from other processes as long as the purpose of the process is achieved. Note that, for convenience of explanation, in this embodiment, the directions indicated by arrows FR, UP, and LH shown appropriately in each figure are defined as the front side, upper side, and left side of the seamless product manufacturing apparatus 10, respectively.

(Overall overview)
1 is a schematic diagram showing one embodiment of a seamless product manufacturing jig 1 and a seamless product manufacturing apparatus 10 (hereinafter simply referred to as "manufacturing apparatus 10") according to the present disclosure. As shown in this figure, manufacturing jig 1 includes a high-friction body 50, a first jig 20, and a second jig 22. Manufacturing apparatus 10 also includes a table 12 on which first jig 20 is placed, a nozzle 14 that dispenses adhesive, and a press mechanism 16 that is provided opposite table 12.

The adhesive can be composed of a hot melt adhesive whose main component is a thermoplastic polymer, and is preferably composed of a reactive hot melt adhesive. Reactive hot melt adhesives form a three-dimensional crosslinked structure in response to moisture, light, etc., and are therefore suitable for improving heat resistance and adhesive strength. In this embodiment, as an example, the adhesive is composed of a moisture-curing hot melt adhesive containing a urethane prepolymer.

The nozzle 14 is, for example, the nozzle of an adhesive applicator, such as a known dispenser, and is attached to the tip of an air-operated syringe. The syringe is filled with adhesive that has been melted by heating, and by applying a predetermined air pressure to the syringe, the adhesive is ejected from the tip of the nozzle 14 to the desired position. In this embodiment, the adhesive ejected from the nozzle 14 forms a dot-like pattern on the fabric 30, forming an adhesive layer 40 (see FIG. 5(E)). Note that the adhesive application pattern may also be a bead-like pattern. Thus, in this disclosure, the "adhesive layer formed on the fabric" includes both an adhesive layer formed by applying adhesive continuously to the fabric 30 and an adhesive layer formed by applying adhesive discontinuously to the fabric 30.

As an example, the press mechanism 16 includes a columnar rod 16A and a press plate 16B attached to the lower end of the rod 16A. The rod 16A is connected to an actuator, such as a motor, and is driven up and down by the driving force of the actuator. The press plate 16B is driven by the rod 16A to clamp and pressurize the fabric 30 placed on the first jig 20 between itself and the table 12. This allows the adhesive surfaces of the fabrics, on which the adhesive layer 40 has been formed, to be pressed together.

The manufacturing device 10 configured as described above produces seamless products made by bonding pieces of fabric together using an adhesive. Note that the term "seamless product" used here is a broad concept that includes both products in which some of the fabric joints are joined seamlessly and products in which all of the fabric joints are joined seamlessly.

In the manufacturing process according to the present disclosure, the high-friction body 50, the first jig 20, and the second jig 22 are used to effectively bond the edges of the fabric 30. The following explanation provides a detailed description of the configuration of the high-friction body 50, the first jig 20, and the second jig 22, and also explains the manufacturing process using seamless underwear (shorts) as an example.

(material)
2 is a plan view showing the state in which the fabric 30 is placed on the high-friction body 50 and the first jig 20. As shown in this figure, the fabric 30 is composed of a single piece of flat-cut fabric in which a front body 32 and a back body 34 are connected via a crotch 36. One example of the fabric material used for the fabric 30 is a stretchy fabric material into which synthetic fibers are knitted.

(High friction body)
The high-friction body 50 is formed in a plate shape and is placed on the installation surface of the fabric 30. The high-friction body 50 has a first surface S1 (see FIG. 2) and a second surface S2 (see FIG. 4) that constitute the front and back surfaces when placed on the installation surface. The high-friction body 50 is also placed so that it can be freely turned upside down with respect to the installation surface. As a result, the high-friction body 50 is configured so that the orientation of the front and back can be changed between a state where the first surface S1 is placed on the installation surface and a state where the second surface S2 is placed on the installation surface.

The high-friction body 50 of this configuration may be placed so that it can be detached from the installation surface, or it may be attached to the installation surface. A configuration in which the high-friction body 50 is placed so that it can be detached from the installation surface is advantageous in that it allows for easy maintenance and replacement if dirt adheres to the surface of the high-friction body 50.

On the other hand, a configuration in which the high-friction body 50 is attached to the installation surface is preferable because it further stabilizes the folding position of the fabric 30 in the manufacturing process described below. Note that a configuration in which the high-friction body 50 is attached to the installation surface means, for example, that one end of the plate-shaped high-friction body 50 is attached to the installation surface via a hinge, and the high-friction body 50 rotates around the hinge.

In one example of this embodiment, the high-friction body 50 is placed so that it can be separated from the installation surface. Furthermore, the high-friction body 50 is configured so that the coefficient of friction of at least the first surface S1 is greater than that of the installation surface. This first surface S1 is the surface that is placed on the surface of the high-friction body 50 before the fabric folding process described below, and is the surface onto which the end of the unfolded fabric 30 is placed (see Figure 3).

A variety of known methods can be used to improve the surface friction coefficient of the high-friction body 50. In one example, the surface friction coefficient can be improved by constructing the high-friction body 50 from a material with excellent surface tackiness, such as silicone, butadiene, isoprene, urethane, or acrylic, or a material containing a combination of these. In another example, the surface of a plate-shaped member can be coated with a paint containing at least one of silicone, butadiene, isoprene, urethane, or acrylic to form a high-friction layer with excellent tackiness, thereby improving the friction coefficient. In another example, the plate-shaped member is subjected to a surface treatment, and the friction coefficient can be improved by adjusting the shape, density, and height of the unevenness on the treated surface, as well as a combination of these. Furthermore, the surface friction coefficient of the high-friction body 50 can be improved by combining the above examples.

In one example of this embodiment, the high-friction body 50 is made of a flexible sheet-like member containing polydimethylsiloxane as a silicone, and surface dirt can be removed by washing with water or wiping. This is advantageous in that it prolongs the tackiness of the surface, improving durability and ease of maintenance.

In addition, by setting the coefficient of friction of the first surface S1 to be greater than the surface on which the fabric 30 is placed, the edge of the fabric 30 placed on the first surface S1 is held in place by the high-friction body 50. This makes it possible to prevent the fabric 30 from shifting position during the fabric folding process described below.

There are no particular limitations on the coefficient of friction of the second surface S2. In this embodiment, the coefficient of friction of the second surface S2 is made similar to the coefficient of friction of the first surface S1 by ensuring that there is no difference in the processing state of the first surface S1 and the second surface S2.

Note that if the coefficient of friction of the second surface S2 is set smaller than that of the first surface S1, the frictional resistance of the second surface S2 that comes into contact with the installation surface can be reduced in the process of placing the high-friction body 50 on the installation surface. This is therefore advantageous in that the placement of the high-friction body 50 can be smoothly adjusted. Also, preferably, the coefficient of friction of the second surface S2 is set smaller than the coefficient of friction of the first surface S1 and larger than the coefficient of friction of the installation surface. As a result, after the high-friction body 50 is positioned relative to the installation surface, the frictional resistance of the second surface S2 can prevent the high-friction body 50 from shifting position relative to the installation surface.

On the other hand, if the coefficient of friction of the second surface S2 is set to be greater than that of the first surface S1, the adhesion of the high friction body 50 to the worker's hand that comes into contact with the second surface S2 will be improved when removing the high friction body 50 after the fabric folding process described below. This makes it easier to remove the high friction body 50, which is advantageous in that it improves the workability of this process.

Figure 2 shows the high-friction body 50 placed on a mounting surface in the "deployed position" where the first surface S1 is positioned on the surface. Furthermore, Figure 3 shows a plan view of the high-friction body 50 of Figure 2 with the fabric 30 placed on top of it. As shown in these figures, in this embodiment, the mounting surface for the fabric 30 is made up of the upper surface of the table 12 of the manufacturing apparatus 10 and the upper surface of the first jig 20. Furthermore, the high-friction body 50 includes a first high-friction body 52 placed alongside the first jig 20, and a second high-friction body 54 placed on top of the first jig 20.

The first high-friction body 52 is a rectangular plate-like member that is placed on the table 12 together with the first jig 20. The front end of the first high-friction body 52 is positioned in contact with the rear end 20B of the first jig 20 (first guide portion T1, described below). As shown in FIG. 3, the front body 32 of the fabric 30 is placed on top of the first high-friction body 52. In this state, the rear end 52B of the first high-friction body 52 protrudes outward from the end of the front body 32. The worker can grasp the end 52B protruding from the front body 32 and turn the first high-friction body 52 inside out.

The second high friction body 54 is a plate-like member formed into a rectangular shape that is elongated in the front-to-rear direction. In this embodiment, a pair of second high friction bodies 54 are placed on the first jig 20 with a gap between them in the left-to-right direction. The left and right ends of the back body 34 of the fabric 30 are placed on top of the pair of second high friction bodies 54. In this state, at least one of the longitudinal ends 54F, 54B of the second high friction body 54 protrudes outward from the end of the back body 34. The worker can grasp the end 54F, 54B protruding from the back body 34 and turn the second high friction body 54 inside out.

Here, the first surface S1 of each high-friction body 50 (52, 54) is provided with a fabric alignment guide T5 that aligns the fabric 30 relative to the high-friction body 50. The fabric alignment guide T5 provides a reference line that indicates the position of the edge of the fabric 30 when the fabric 30 is placed in a specified position on the high-friction body 50. The fabric alignment guide T5 is also configured to be visible when the fabric 30 is placed on the high-friction body 50. Therefore, during the manufacturing process, the fabric 30 can be aligned relative to the high-friction body 50 by aligning the edge of the fabric 30 along the fabric alignment guide T5.

The fabric matching guide portion T5 configured in this manner can be composed of paint painted on the first surface S1, grooves formed in a concave shape on the first surface S1, protrusions provided in a convex shape on the first surface S1, etc. In one example of this embodiment, the fabric matching guide portion T5 is composed of paint painted on the high-friction body 50, and indicates part of the outline along the edges of the front body portion 32 and back body portion 34 of the fabric 30.

(First jig)
The first jig 20 is a rectangular plate-like member that is placed on the table 12. As described above, it also forms a surface on which the fabric 30 is placed. In this embodiment, the first jig 20 is configured separately and independently from the table 12. However, if the table 12 is movable horizontally by a driving force such as an actuator, the first jig 20 may be provided integrally with the table 12. The material that constitutes the first jig 20 is not particularly limited. For example, the first jig 20 can be formed from a metal material, a resin material, or a combination thereof. In this embodiment, the first jig 20 is formed from a metal plate, as an example.

Here, the first jig 20 has a first guide portion T1 that aligns the high-friction body 50 relative to the first jig 20, and a second guide portion T2 that aligns the second jig 22 relative to the first jig 20.

The first guide portion T1 provides a reference line that indicates the position of the end of the high-friction body 50 when the high-friction body 50 is placed in a predetermined position determined by its relative position with the first jig 20. The first guide portion T1 is also configured to be visible when the high-friction body 50 is placed. Therefore, during the manufacturing process, the high-friction body 50 can be aligned with the first jig 20 by aligning the end of the high-friction body 50 along the first guide portion T1.

The first guide portion T1 in this configuration can be configured with paint painted on the upper surface, a groove formed in a concave shape on the upper surface, a protrusion provided in a convex shape on the upper surface, or the like. Furthermore, by matching part of the shape of the end of the first jig 20 with part of the shape of the end of the high-friction body 50, the first guide portion T1 can be configured with the end of the first jig 20 as a reference line. In one example of this embodiment, the first guide portion T1, which aligns the pair of second high-friction bodies 54, is configured with paint 24 painted on the upper surface of the first jig 20. Furthermore, the rear end 20B of the first jig 20 configures the first guide portion T1, which aligns the first high-friction body 52 in the deployed position.

On the other hand, the second guide portion T2 provides a reference line that indicates the position of the end of the second jig 22 when the second jig 22 is placed in a specified position on the first jig 20. Furthermore, the second guide portion T2 is configured to be visible when the fabric 30 and second jig 22 are placed on the first jig 20. Therefore, during the manufacturing process, the second jig 22 can be aligned with the first jig 20 by aligning the end of the second jig 22 along the second guide portion T2.

Like the first guide portion T1 described above, this second guide portion T2 can be constructed using paint on the upper surface, a concave groove formed on the upper surface, a convex protrusion formed on the upper surface, or the like. Furthermore, by matching a portion of the end shape of the first jig 20 with a portion of the end shape of the second jig 22, the second guide portion T2 can be constructed using the shape of the end of the first jig 20 as a reference line. In one example of this embodiment, the second guide portion T2 is constructed by the front end portion 20F of the first jig 20. The second jig 22 can be aligned with the first jig 20 by positioning the front end portion 22F of the second jig 22 along the second guide portion T2.

(Second jig)
The second jig 22 is a rectangular plate-like member. The second jig 22 is placed on top of the first jig 20 with the substrate 30 interposed between them. The material constituting the second jig 22 is not particularly limited. For example, the second jig 22 can be made of a metal material, a resin material, or a combination thereof. As an example, the second jig 22 in the embodiment is made of a metal plate.

The second jig 22 is placed on top of the first jig 20, thereby sandwiching and pressing the back body section 34 of the fabric 30 between the first jig 20 and the second jig 22. In this state, a portion of the outer peripheral edge of the second jig 22 forms a guide edge T3 that guides the folding position of the fabric 30. In this embodiment, the left and right ends 22R, 22L of the second jig 22 and the rear end 22B form the guide edge T3.

In this embodiment, the second jig 22 further includes a fourth guide portion T4 that aligns the first high friction body 52 when it is turned inside out and moved from the "unfolded position" to the "folded position" (see Figure 4). This fourth guide portion T4 provides a reference line that indicates the position of the end of the first high friction body 52 at the "folded position." The fourth guide portion T4 is also configured to be visible when the fabric 30 and second jig 22 are placed on the first jig 20.

The fourth guide portion T4 can be configured using paint painted on the top surface, a groove formed in a concave shape on the top surface, a protrusion formed in a convex shape on the top surface, or the like. Furthermore, by matching part of the shape of the end of the second jig 22 with part of the shape of the end of the first high-friction body 52, the fourth guide portion T4 can be configured using the end of the second jig 22 as a reference line. In one example of this embodiment, the fourth guide portion T4, which aligns the first high-friction body 52 at the "turn-back position," is configured using paint 28 painted on the top surface of the second jig 22. Note that this fourth guide portion T4 may also be configured to be provided on the first jig 20.

Figure 4 shows the high-friction body 50 placed on the installation surface in the "folded position" where the second surface S2 is positioned on the surface. The second jig 22 is placed on top of the first jig 20, which has the fabric 30 placed on its upper surface. In this figure, the outline of the fabric 30 shown by the two-dot chain line indicates the unfolded state of the fabric 30. The outline of the fabric 30 shown by the solid line indicates the outline of the fabric 30 when the high-friction body 50 is turned inside out from the "unfolded position," resulting in the fabric 30 being folded back along the guide end T3.

As shown in this figure, when the second jig 22 is placed on top of the first jig 20 with the high friction body 50 in the expanded position, the left and right ends of the back body 34 of the fabric 30 are configured to protrude from the left and right end portions 22R, 22L of the second jig 22. These left and right end portions are layered on a pair of second high friction bodies 54. Furthermore, the front body 32 of the fabric 30 is configured to protrude from the rear end portion 22B of the second jig 22. This front body portion 32 is layered on top of the first high friction body 52.

When the high-friction body 50 is turned inside out from the "extended position" and placed in the "folded position," the ends of the fabric 30 protruding from the second jig 22 are folded back along the guide end T3. This results in the ends of the front body 32 and the back body 34 overlapping on the top surface of the second jig 22. In other words, in this embodiment, by forming a fold line on the fabric 30 at the position of the guide end T3, the fabric 30 is folded back along the guide end T3.

(Method for manufacturing seamless products using manufacturing jigs)
5(A) to 5(G), a method for manufacturing a seamless product using the above-described high-friction body 50, first jig 20, and second jig 22 will be described. In the manufacturing method of this embodiment, after the end of the fabric 30 is placed on the high-friction body 50, the second jig 22 is placed on the first jig 20, and the fabric 30 is pressed between the first jig 20 and the second jig 22. In this state, an adhesive layer 40 is formed on the fabric 30, and then the high-friction body 50 is turned inside out, so that the end of the fabric is folded back along the guide edge T3 of the second jig 22, and the folded end of the fabric 30 is placed on the adhesive layer 40.

In the fabric placement process, first, the high-friction body 50 is placed on the placement surface for the fabric 30 (the upper surface of the table 12 and first jig 20) (Figure 5(A)). At this time, the end of the high-friction body 50 is placed along the first guide portion T1 of the first jig 20, thereby aligning the high-friction body 50 with the first jig 20. This places the high-friction body 50 in the "spread position." Then, the end of the fabric 30 is placed on the first surface S1 of the high-friction body 50 (Figure 5(B)). At this time, the end of the fabric 30 is placed along the fabric alignment guide portion T5 formed on the first surface S1, thereby aligning the fabric 30 with the high-friction body 50.

In the fabric pressing process, the second jig 22 is placed on top of the first jig 20 (Figure 5(C)). At this time, the second jig 22 is aligned along the second guide portion T2 (20F) of the first jig 20. This results in the back body portion 34 of the fabric 30 being sandwiched and pressed between the first jig 20 and the second jig 22, preventing the fabric from shifting position during the subsequent folding process.

The fabric folding process includes a first folding process that is performed before the adhesive application process, and a second folding process that is performed after the adhesive application process.

In the first folding process, the first high-friction body 52, on which the front body part 32 of the fabric 30 overlaps, is turned inside out, and the front body part 32 of the fabric 30 protruding from the rear end 22B (guide end T3) of the second jig 22 is folded back along the end 22B (Figure 5 (D)).

After the first folding process, the adhesive layer forming process is carried out. In this process, the first jig 20 is moved forward of the table 12 and set in alignment with the nozzle 14, which is installed in a fixed position. When the nozzle 14 then begins to dispense adhesive, the first jig 20 is slid back and forth in time with this, so that the tip of the nozzle 14 moves along the left and right edges of the front body 32 (Figure 5(E)). This forms an adhesive layer 40 on the left and right edges of the front body 32. The first jig 20 may be moved manually, or automatically by connecting it to a drive actuator.

Note that this adhesive layer formation process may be a process of forming an adhesive layer 40 on at least one of the fabrics of the front body 32 and the back body 34 at the overlapping portion between them. Therefore, instead of forming the adhesive layer 40 on the front body 32, it may be a process of forming the adhesive layer 40 on the end of the back body 34 that protrudes from the end portions 22R, 22L (guide end portions T3) on both the left and right sides of the second jig 22. Alternatively, it may be a process of forming the adhesive layer 40 on both the front body 32 and the back body 34.

After the adhesive application process, in the second folding process, the pair of second high-friction bodies 54 are turned inside out, while the ends of the back body 34 protruding from the left and right ends 22R, 22L (guide ends T3) of the second jig 22 are folded back along the left and right ends 22R, 22L of the second jig 22 (Figure 5(F)). As a result, on the top surface of the second jig 22, the end of the back body 34 is overlapped with the end of the front body 32 on which the adhesive layer 40 has been formed.

After the second folding process, a pressurizing process is carried out to press the adhesive surfaces of the fabric together (Figure 5(G)). In this pressurizing process, the high-friction body 50 placed on top of the fabric 30 is removed, and the first jig 20 is then moved below the press mechanism 16, and the press plate 16B is pressed against the top surface of the second jig 22 to temporarily press the adhesive surfaces of the fabric together. This completes the three-dimensional shape of the shorts.

Then, the fabric 30 is removed from the second jig 22, and the adhesive surfaces are heat-pressed using a heat press (not shown), completing the seamless garment manufacturing process. Note that the pre-pressing step may be omitted by configuring the press mechanism 16 of the seamless product manufacturing device 10 as a heat press mechanism.

(Action and effect)
As described above, in this embodiment, the first surface S1, which has a friction coefficient set greater than that of the placement surface, is placed on the placement surface of the fabric 30, and the high-friction body 50 is then placed on top of the placement surface, and the end of the fabric 30 is then placed on top of the high-friction body 50. This holds the end of the fabric 30 on the first surface S1. Therefore, when the high-friction body 50 is turned inside out and the end of the fabric 30 is folded back, it is possible to prevent the position of the fabric 30 from shifting. This increases the accuracy of the folding position of the fabric 30.

Furthermore, folding the fabric 30 can be done with the simple action of turning the high-friction body 50 inside out, improving workability. In this way, it is possible to reduce defects in the bonding position of the edge of the fabric 30 and improve productivity.

A fabric alignment guide portion T5 is provided on the first surface S1 of the high-friction body 50 to align the fabric 30 with the high-friction body 50. This makes it easier to align the fabric 30 with the high-friction body 50 and improves the accuracy of the alignment.

In addition, by setting the friction coefficient of the second surface S2 of the high-friction body 50 to be smaller than that of the first surface, the frictional resistance of the second surface S2 that comes into contact with the installation surface during the fabric installation process can be reduced. This allows for smooth adjustment of the placement of the high-friction body 50.

On the other hand, by setting the coefficient of friction of the second surface S2 of the high-friction body 50 to be greater than that of the first surface, the adhesion to the worker's hand that comes into contact with the second surface S2 is improved when removing the high-friction body 50 after the fabric folding process. This makes it easier to remove the high-friction body 50, improving workability.

The high-friction body 50 also includes a first high-friction body 52 and a second high-friction body 54, with the front body 32 of the fabric 30 layered on the first high-friction body 52 and the back body 34 of the fabric 30 layered on the second high-friction body 54. By turning the first high-friction body 52 and the second high-friction body 54 inside out, the overlapping positions of the ends of the front body 32 and the back body 34 of the fabric 30 can be precisely aligned. This reduces defects in the bonding position of the ends of the fabric 30 and improves productivity in the manufacture of seamless garments comprising front and back bodies.

Furthermore, in this embodiment, the installation surface on which the fabric 30 and high-friction body 50 are placed is configured as the installation surface of the first jig 20. As a result, when forming the adhesive layer 40, even if the adhesive dispensing position is set to a fixed position, the adhesive layer can be formed in the desired position by moving the first jig 20. This makes it easy to accommodate product changes.

In addition, after the fabric 30 is placed on the first jig 20, the second jig 22 is placed on top of the first jig 20, so the fabric 30 can be sandwiched and pressed between the first jig 20 and the second jig 22. This prevents the fabric 30 from slipping on the first jig 20 and becoming misaligned during the fabric 30 folding process. This further improves the accuracy of the folding position of the fabric 30.

(Modification of this embodiment)
Although the method for manufacturing a seamless product according to the above embodiment has been described using seamless shorts as an example, the present disclosure is not limited thereto. The manufacturing method of the present disclosure can be applied to the manufacturing of a wide variety of seamless products. Furthermore, in the above embodiment, when the high-friction body 50 is turned inside out from the "extended position" and moved to the "folded position," the high-friction body 50 is positioned on the second jig 22. However, this is not limited thereto. For example, as shown in FIG. 6(A), when the high-friction body 50 is positioned in the "extended position" on the first jig 20 and then turned inside out and moved to the "folded position" shown in FIG. 6(B), the end of the folded fabric 30 and the high-friction body 50 may be positioned outside the second jig 22. Furthermore, the second jig 22 is not required. This manufacturing process can be suitably used, for example, to process the edges of fabric, such as the neckline and hem of a T-shirt.

In the textile product manufacturing method according to the above embodiment, an example has been described in which the placement surface for the fabric 30 is composed of the upper surface of the table 12 and the upper surface of the first jig 20, but the present disclosure is not limited to this. For example, as shown in FIG. 7(A), the first jig 20 may be omitted, and a high-friction body 50 may be placed on the table 12. In this case, the placement surface for the fabric 30 is composed of the upper surface of the table 12. Furthermore, for example, as shown in FIG. 7(B), the high-friction body 50 may be placed on the first jig 20, and the placement surface for the fabric 30 may be composed of the upper surface of the first jig 20.

20 First jig 22 Second jig 30 Fabric (seamless clothing)
32 Front body 34 Back body 40 Adhesive layer 50 High friction body 52 First high friction body 54 Second high friction body S1 First surface S2 Second surface T5 Fabric matching guide portion (guide portion)

Claims (14)

a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface;
an adhesive layer forming step of forming an adhesive layer on the fabric;
a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer;
Including ,
the high-friction body has a guide portion that aligns the fabric with the high-friction body,
The fabric placement process is a process in which an end of the fabric is placed on the high-friction body along the guide portion, and the fabric is placed on the placement surface . a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface;
an adhesive layer forming step of forming an adhesive layer on the fabric;
a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer;
Including ,
the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface,
In the fabric placement step, an end of the fabric is placed on the first surface of the high-friction body,
In the fabric folding step, the high-friction body is turned inside out and placed with the second surface facing upward. a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface;
an adhesive layer forming step of forming an adhesive layer on the fabric;
a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer;
Including ,
The fabric is a fabric for a seamless garment having a front body and a back body,
the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body;
The fabric folding process is a process of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body . a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface;
an adhesive layer forming step of forming an adhesive layer on the fabric;
a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer;
Including ,
The installation surface is configured as an installation surface of a first jig,
The method for manufacturing a seamless product includes placing a high-friction body, which has a friction coefficient set to be greater than that of the installation surface, on the installation surface of the first jig, and then placing an end of the fabric on the high-friction body, and placing the fabric on the first jig . the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface,
In the fabric placement step, an end of the fabric is placed on the first surface of the high-friction body,
The method for manufacturing a seamless product according to claim 1 , wherein in the fabric folding step, the high-friction body is turned inside out so that the second surface faces upward. The fabric is a fabric for a seamless garment having a front body and a back body,
the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body;
A method for manufacturing a seamless product as described in any one of claims 1, 2, and 5, wherein the fabric folding process is a process of turning the first high friction body and the second high friction body inside out and overlapping the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body. The fabric is a fabric for a seamless garment having a front body and a back body,
the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body;
5. The method for manufacturing a seamless product according to claim 4, wherein the fabric folding step is a step of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body. The installation surface is configured as an installation surface of a first jig,
The method for manufacturing a seamless product according to any one of claims 1 to 3, 5, and 6, wherein the fabric placement step is a step of placing a high-friction body, the high-friction body having a friction coefficient set to be greater than that of the placement surface, on an installation surface of the first jig, and then placing an end of the fabric on the high-friction body, and placing the fabric on the first jig. 9. The method for manufacturing a seamless product according to claim 4, further comprising, after the fabric placement step, a fabric pressing step of placing a second jig on top of the first jig and sandwiching and pressing the fabric between the first jig and the second jig . a surface on which the fabric is placed;
a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface;
the high-friction body has a guide portion for aligning the fabric with respect to the high-friction body,
The high-friction body is turned inside out along the guide portion with the end of the fabric overlapping on the high-friction body , thereby overlapping the end of the fabric folded over the high-friction body with an adhesive layer formed on the fabric. This is a jig for manufacturing seamless products. a surface on which the fabric is placed;
a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface;
the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface,
The high-friction body is turned inside out with the end of the fabric overlapping the first surface of the high-friction body and placed with the second surface facing upward , so that the end of the fabric folded over the high-friction body is overlapped on an adhesive layer formed on the fabric. a surface on which the fabric is placed;
a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface;
The fabric is a fabric for a seamless garment having a front body and a back body,
The jig for manufacturing seamless products is configured such that a plurality of high-friction bodies are placed on the installation surface, and then the front body is placed on a first high-friction body and the back body is placed on a second high-friction body, and the first and second high-friction bodies are turned inside out to overlap the front body and the back body , thereby overlapping the edge of the fabric folded over the high-friction body with an adhesive layer formed on at least one of the front body and the back body . a surface on which the fabric is placed;
a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface;
The installation surface is configured as an installation surface of a first jig,
A jig for manufacturing seamless products, in which a high-friction body having a friction coefficient set greater than that of the installation surface of the first jig is placed on the installation surface of the first jig, and then the end of the fabric is turned inside out with the end of the fabric overlapped, so that the end of the fabric folded over the high-friction body is overlapped on an adhesive layer formed on the fabric. 14. The jig for manufacturing seamless products according to claim 13, wherein after the fabric is placed on the installation surface of the first jig, a second jig is placed on top of the first jig to sandwich and press the fabric between the first jig and the second jig.