JP6509785B2 - Stretchable warp knitted fabric having separated structure and method of knitting the same - Google Patents

Description

  The present invention relates to an elastic warp-knitted fabric which can be easily separated by removing drawn yarn from a knitted fabric and a method of knitting the same.

  Conventionally, a warp knitted fabric in which a plurality of knitted fabric portions are connected by a connecting portion in which punching yarns are knitted has been put to practical use. In such a warp-knitted fabric, although it is possible to separate a plurality of knitted fabric portions by pulling out a yarn that has been knitted in the warp direction, fraying or the like does not occur at the edges of the separated knitted fabric portions It is required to do so.

  In order to cope with such problems, for example, in Patent Document 1, a chain knit row with drawn yarn is arranged between a pair of opposed warp knitted fabric pieces, and ear elasticity is provided between the chain knit row with drawn yarn and the warp knitted fabric piece It is described that the yarns are inserted and knitted to connect them. Moreover, in patent document 2, the drawn yarn portion in which the knitted fabric portions on both sides are separably connected is knitted in a chain knit row, and the stitch connection structure which connects the drawn yarn portion and the knitted fabric portion is knitted using an elastic yarn. Also, it is described that the elastic yarn forms a loop at the connection point with the knitted fabric portion and forms a loop at the connection point with the chain knit row of the drawn yarn portion. By using an elastic yarn as a connecting yarn for connecting the drawn yarn and the knitted fabric portion to the connection portion in which the drawn yarn is knitted in this way, after the drawn yarn is drawn and separated, the connected yarn is shrunk by the elastic restoring force It will be drawn into the knitted fabric part, and it will be difficult for the edge of the knitted fabric part after separation to be frayed or the like.

Patent No. 3488947 Patent No. 3535845 gazette

  As described in Patent Document 1, in the knitted fabric in which the drawn yarn is knitted into a chain knit row and the elastic yarn is inserted and connected between the knitted fabric portion and the chain knitted row, the drawn yarn can be easily pulled out Because it can, there is an advantage that it is easy to separate the knitted fabric part. However, since the knitting yarn used for the ground tissue is knitted as the connecting yarn, the separation structure can be configured only when the ground tissue is a knitted fabric that can be used as the connecting yarn. Therefore, the knitting organization which can be knitted is limited, and there is a problem in terms of versatility.

  In Patent Document 2, since the elastic yarn to be the connecting yarn forms a loop at the connection point with the knitted fabric portion, the connecting yarn becomes entangled with the knitted fabric portion by the loop after drawing the drawn yarn. As a result, the connecting yarn is held. However, since the loops of the connecting yarn are knitted so as to overlap the loops of the chain of yarn of the drawn yarn, the loops of the connected yarn become intricately intertwined with the loops of the drawn yarn when drawing the drawn yarn so that they are easily drawn out. There is a drawback that you can not do. In addition, the connecting yarn is pulled as the drawn yarn is pulled out, and the loop at the connection point with the knitted fabric part is tightened so that the edge tends to be hard. In addition, when the loop is tightened, the connecting yarn protruding from the edge is contracted so as to be difficult to be drawn into the knitted fabric portion, and there is a problem that the protruding portion remains.

  Therefore, the present invention provides an elastic warp knitted fabric which can easily pull out a drawn yarn and separate the knitted fabric portion and at the same time the connecting yarn is drawn into the knitted fabric portion and held in a stable state. Intended to be provided.

  The elastic warp knitted fabric according to the present invention is an elastic warp knitted fabric in which a plurality of knitted fabric portions are separably connected by a connecting portion obtained by knitting a connecting yarn made of a non-elastic yarn and an elastic yarn. In the connection portion, the drawn yarn forms a loop at a stitch position in the warp direction and is knitted to form a stitch row so that the loop is dropped at a stitch position for each predetermined interval, and the connection yarn is The yarns are arranged on both sides of the stitch row and woven into the knitting structure of the adjacent knitted fabric portion, and are formed by alternately forming loops at the missing positions of the stitch rows. Furthermore, the connecting yarn is inserted into and knitted in the knitting structure of the knitted fabric portion before and after forming a loop of the missing position of the stitch row. Further, the knitted fabric portion is knitted by superposing a plurality of jacquard knitting structures, the punched yarn is knitted as a knitting yarn of the jacquard knitting structure, and the connecting yarn is the punched yarn. And the knitting yarn of the jacquard knitting structure different from the above.

  In the method of knitting a stretchable warp knitted fabric according to the present invention, a plurality of knitted fabric portions are knitted together with a plurality of knitted fabric portions by connecting a connection portion obtained by knitting connection yarns made of non-elastic yarn and drawn yarns. A method of knitting an elastic warp knitted fabric which is knitted so as to be separably connected in portions, wherein the knitted fabric portion is knitted by overlapping a plurality of jacquard knitting structures, and the punched yarn is the jacquard A loop is formed at a stitch position in the longitudinal direction as a knitting yarn of a knitting structure and a stitch row is formed so that the loop is dropped at a stitch position for each predetermined interval, to form a stitch row. It arrange | positions and forms a loop alternately in the missing position of the said stitch row as knitting yarn of the said jacquard knitting structure different from the said jacquard knitting structure of the said thread | yarn being interwoven in the knitting structure of the adjacent said fabric part WeaveFurthermore, the connecting yarn is inserted into and knitted into the knitting structure of the knitted fabric portion before and after forming a loop of the missing position of the stitch row.

  According to the present invention, by having the configuration as described above, the drawn yarn can be easily pulled out to separate the knitted fabric portion, and the connecting yarn can be drawn into the knitted fabric portion and held in a stable state. Become.

It is a schematic block diagram regarding a warp knitting machine. It is an organization chart showing an example about a basic organization of a jacquard knitting organization. It is a knitting | organization structure chart which shows the change structure | tissue changed from the basic structure of the jacquard knitting | organization structure. It is an organization chart regarding an example of a connection part. It is a threading figure at the time of knitting the knitting structure shown in FIG. It is explanatory drawing which shows the change structure of the drawing thread in a connection part, and a connection yarn. It is explanatory drawing which shows typically the knitting | organization structure of the drawing thread in a connection part, and a connection yarn. It is explanatory drawing which shows typically the knitting structure of the connection part regarding a modification.

  Hereinafter, embodiments according to the present invention will be described in detail. The embodiment described below is a preferable specific example for carrying out the present invention, and therefore, various limitations are technically made, but the present invention is specified that the invention is particularly limited in the following description. As long as it is not, it is not limited to these forms.

  FIG. 1 is a schematic view of a warp knitting machine used to knit an elastic warp knitted fabric according to the present invention. The warp knitting machine comprises two jacquard collars JB1 and JB2, two ground ridges GB3 and GB4 and a single row of knitting needle row N, and each jacquard ridge follows a full set of jacquard guides along the knitting needle row N. Are arranged. The jacquard collar JB1 includes a pair of jacquard guides JB1-1 and JB1-2 in which half sets of jacquard guides in a full set are alternately arranged, and each jacquard guide is a half of the knitting machine gauge. The number of is arranged in parallel. Each jacquard guide is controlled so as to be individually displaceable by a drive element such as a piezoelectric element. The jacquard weir JB2 is provided with a pair of jacquard guides JB2-1 and JB2-2 in the same manner as the jacquard weir JB1, and in the same manner as the jacquard guides JB1-1 and JB1-2, it is A half number of each is arranged and controlled so as to be individually displaceable by a drive element such as a piezoelectric element.

  The jacquard weir JB2 is driven and controlled independently of the jacquard weir JB1, and the jacquard weirs JB1 and JB2 are independently controlled to make the knitting needle row N knitting yarn from each jacquard guide Is provided to obtain an elastic warp knitted fabric in which a plurality of knitted fabric portions are connected separably at the connecting portion.

  The jacquard knitting organization organized by the jacquard collar JB1 and JB2 is such that a basic organization consisting of a pair of repeating units respectively corresponding to the jacquard guides and a change organization in which the basic organization is changed are combined to form a handle organization. It has become. Then, the knitted fabric in a stable state is thin by knitting so as to compensate for the lack of stitch positions occurring in the combined basic tissue and the change tissue in each jacquard knitting structure in the case of overlapping knitting. Can be composed of

  FIG. 2 is an organization chart showing an example of the basic organization of the jacquard knitting organization. In this example, the jacquard knitting organization organized by the jacquard collar JB1 and JB2 is used as a basic organization of a special jacquard knitting organization such as half set net knitting, and between adjacent wales. The knitting yarns are alternately shaken for each course to form a loop at a stitch position and the adjacent knitting yarns are mutually shaken so as to be line symmetrical with respect to a passing direction in each course, thereby overlapping loop positions of the loops. And the stitch position without a loop is arranged in a checkered pattern.

  The knitted yarn supplied by the two ground bands GB3 and GB4 is adapted to be knitted into the jacquard knit fabric as an insertion yarn, as shown in FIG. Thus, by using an elastic yarn as the insertion yarn, it is possible to knit into a more flexible stretchable warp knitted fabric.

  FIG. 3 is a knitting structure chart showing an example of a change structure changed from the basic structure of the jacquard knitting structure. In this example, the change structure is shown in the case where the basic structure is a Denpy knitting. The displacement operation of the jacquard guide operates so as to always be displaced only in the same direction (displacement with one right by using the right as a reference position). In FIG. 3, ← indicates the displacement operation.

  FIG. 3 (a) shows a basic structure, in which a repeat unit is formed which forms a loop with an odd course and is shaken by an adjacent wale on the left side with the next even course to form a loop; It is formed in light ground. FIG. 3 (b) shows a change tissue which is displaced by one wale leftward on an even course in the basic tissue indicated by a dotted line, and the sinker loop portion between the odd course and the even course loops is longer than the basic tissue. Therefore, the knitted fabric is formed to be "thick" compared to the basic tissue. FIG. 3 (c) shows a change tissue which is displaced by one weight leftward in the odd course in the basic tissue shown by the dotted line, and since the odd course and the even course loops are arranged in the same wale, A "hole" will be formed in the knitted fabric. FIG. 3 (d) shows a change texture which is displaced by one wale leftward on odd and even courses, and by overlapping the sinker loop portions, the knit fabric is formed to be "medium thickness" compared to the basic texture. Become so.

  Further, in the jacquard knitting structure, a plurality of types of change tissues are proposed in addition to the change tissues shown in FIG. 3, for example, by applying displacement twice per course at the timing of underlapping and overlapping. The looping tissue can be changed to the insertion tissue, or the insertion tissue can be changed to the looping tissue. And by combining these two displacements, various knitting structures can be organized.

  As knitting yarns used for the jacquard knit structure, non-elastic yarns are used in the knitted fabric portion, and elastic yarns are used as the insertion yarns. As the elastic yarn, a bare yarn made of polyurethane-based elastic fiber or a composite yarn in which polyurethane-based elastic fiber and other fibers are combined can be used. Further, as the inelastic yarn, fiber materials other than those used for elastic yarn can be used. For example, synthetic fibers such as polyester fibers, polyamide fibers, regenerated fibers such as rayon, natural fibers such as cotton And yarns composed of known fibers and composite yarns obtained by combining these fibers. In particular, non-elastic yarns made of polyamide-based fibers such as nylon are suitable for stretchable warp knitted fabrics because they have appropriate stretchability and are easy to knit.

  FIG. 4 shows an example of an organization chart regarding the connection part. FIG. 4 (a) shows the knitted fabric knitted by the jacquard collar JB1 and the ground ridges GB3 and GB4, and FIG. 4 (b) shows the knitted fabric knitted by the jacquard collar JB2. FIG. 5 shows a threading diagram in knitting the knitted fabric shown in FIG. FIG. 6 is an explanatory view showing a change structure of the drawn yarn A and the connection yarns B1 and B2 in the connection portion.

  In this example, the drawn yarn A made of inelastic yarn is supplied by the jacquard guide JB1-1 of the jacquard collar JB1 and displaced from the basic tissue to form a loop at the stitch position in the longitudinal direction and also predetermined The stitch rows are formed by weaving so that the loop is missing at stitch positions for each interval. As described above, by displacing twice in one course, as shown in FIG. 6A, it is possible to displace from the basic tissue shown by the dotted line so as to follow the stitch position in the longitudinal direction, It is possible to form a loop of stitches missing at predetermined intervals along the warp direction.

  In addition, knitted yarn composed of non-elastic yarn is supplied by jacquard guides JB1-1 and JB1-2 on both sides of the stitch row of drawn yarn A so that a jacquard knitted fabric is knitted to form a knitted fabric portion It has become. Then, in the knitted fabric portion, knitting yarns made of elastic yarn are supplied by the ground loops G3 and G4, respectively, and are inserted into the jacquard knitting structure.

  In the stitch row forming the side edge of the knitted fabric portion adjacent to the stitch row of the drawn yarn A, the knitting yarns supplied from the jacquard guides JB1-1 and JB1-2 cross each other by alternately waving in the latitudinal direction As a result, a stable knitting structure is formed by knitting.

  The connecting yarns B1 and B2 made of elastic yarn are supplied by the jacquard guide JB2-2 of the jacquard collar JB2 and are respectively disposed on both sides of the stitch row formed by the drawn yarn A, and the connecting yarns B1 and B2 On the outside of the fabric, knitting yarns composed of non-elastic yarns are supplied by jacquard guides JB2-1 and JB2-2, and a jacquard knitting structure is knitted, and a jacquard knitting structure by jacquard guides JB1-1 and JB1-2 The knitted fabric portions are formed so as to be overlapped.

  The connecting yarns B1 and B2 are displaced from the basic tissue so as to form a loop in the jacquard knitting structure of the knitted fabric part adjacent to the outside and to be knitted, and at the missing position of the stitch row formed by the drawn yarn A. Loops are alternately formed to be woven. The connecting yarns B1 and B2 are formed in the stitch row forming the side edge of the knitted fabric portion adjacent to the stitch row of the drawn yarn A before and after forming the loop at the missing position of the stitch position formed by the drawn yarn A. It is inserted and made to be woven. As described above, by displacing twice in one course, as shown in FIG. 6B, it is possible to displace the basic tissue shown by the dotted line except the loop at the missing position in the left direction. It is possible to form a loop in the knitted fabric to weave and to insert it into the knitted fabric of the knitted fabric part before and after the missing position.

  As shown in FIG. 5, jacquard guides JB1-1 and JB1-2 of jacquard collar JB1 are alternately arranged to supply a knitted yarn composed of non-elastic yarn, and a connecting portion for separating a plurality of knitted fabric portions The corresponding jacquard guide JB1-1 is knitted so as to form a stitch row in the warp direction as the drawn yarn A. Further, knitting yarns made of inelastic yarn are supplied to the jacquard guides JB2-1 and JB2-2 of the jacquard collar JB2 corresponding to the knitted fabric portion, and to the jacquard guides JB2-1 corresponding to the connecting portions. Are not supplied, and connecting yarns B1 and B2 made of elastic yarn are supplied to the pair of jacquard guides JB2-2 on both sides thereof so as to connect the knitted fabric portion and the stitch row by the drawn yarn A.

  FIG. 7 is an explanatory view schematically showing the knitting structure of the drawn yarn and the connecting yarn in the connecting portion. For ease of understanding, the drawn yarn A is indicated by a solid line, and the connecting yarns B1 and B2 are indicated by a white line, and the stitch positions of the knitted fabric portions on both sides are indicated by an alternate long and short dash line for easy understanding. There is.

  The loops of the connecting yarns B1 and B2 are alternately woven at stitch positions where the loops of the stitch row formed by the drawn yarn A are dropped at predetermined intervals, whereby a chain-knitted yarn knitted in the warp direction is knitted. In addition, the connecting yarns B1 and B2 are also formed by forming loops in the knitting structure of the outer knitted fabric portion, and before and after the loops knitted in the stitch row formed by the drawn yarn A It is inserted into the side edge of the part and woven.

  The drawn yarn A is knitted in the warp direction in a chain-knit row, and is entangled with the connecting yarns B1 and B2 at the position where the loop is missing, so pulling the drawn yarn A along the warp direction The loop is easily released and the drawn yarn A can be pulled out. In particular, since the drawn yarn A is knitted so as to fly the yarn in the passing direction at the missing position, the loop of the connecting yarn at the missing position is contracted, so that the flying portion of the drawn yarn A becomes slack. It becomes exposed to the outside of the stitch line. Therefore, it becomes easy to grasp the flying part of the drawn yarn A with a finger, and it is possible to pull the blown part of the drawn yarn A by appropriately picking the part of the stitch row formed by the drawn yarn A with a finger. As a result, the drawn yarn A can be easily released.

  Further, since elastic yarns are used for the connecting yarns B1 and B2 and loops are formed in the knitted fabric portion, the stitch rows formed by the drawn yarn A are alternately attracted toward the knitted fabric portions on both sides. It is pulled in a zigzag pattern. Therefore, when the drawn yarn A is pulled out, the loop is released smoothly and the entanglement with the connection yarns B1 and B2 is easily released so that the separation operation of the connection portion can be performed stably and smoothly. it can.

  The connecting yarns B1 and B2 are inserted into the side edge of the knitted fabric part before and after the loops formed in the outer knitted fabric part and woven in the stitch row formed by the drawn yarn A, After the drawn yarn A is pulled out, the connection portion of the connection yarns B1 and B2 is contracted to be smoothly contained and hidden in the stitch row of the side edge of the knitted fabric portion, and the connected yarn is exposed to the knitted fabric portion after separation There is nothing to do. In addition, since the connecting yarns B1 and B2 are knitted as knitting yarns of a jacquard knitting structure different from the drawing yarn A, when the drawing yarn A is pulled out, separation of the yarn from the connection yarns B1 and B2 becomes easy, It is possible to reliably separate the warp knitted fabric.

  In the above-described example, the connecting yarn is formed by forming a loop at the stitch position of the knitted fabric portion, inserting it into the side edge of the knitted fabric portion after being knitted, and forming a loop by forming a loop in the stitch row formed by the punching yarn. After that, it is inserted into the side edge of the knitted fabric part to form a loop at the stitch position of the knitted fabric to be knitted, but the knitting structure in which the connecting yarn forms a loop to be knitted to the knitted fabric part is There is no particular limitation, and it can be appropriately changed in accordance with the knitting structure of the knitted fabric portion. FIG. 8 is an explanatory view schematically showing a knitting structure in a connection portion regarding a modified example of the elastic warp knitted fabric. In this example, the connecting yarns B1 'and B2' are inserted into and knitted into the knitted fabric portion, and are formed by forming a loop at the missing position of the stitch row formed by the drawn yarn A.

  As described above, in the elastic warp knitted fabric according to the present invention, the connecting yarn made of the elastic yarn forms a loop at the missing position of the stitch row made of the drawn yarn made of the inelastic yarn by the jacquard knitting structure. Since it has been woven, the flew part of the puncturing thread in the missing position is in a slack state, and the flew part of the puncturing thread can be easily released by pinching with a finger, and can be easily separated by the jacquard knitting structure It becomes possible to organize the connecting part and has versatility applicable to warp knitted fabrics composed of various knitting structures. For example, it is suitable as a material of clothes such as underwear for women such as foundations such as shorts, girdle and bra, slips, and lingerie such as camisole and sportswear.

A ··· draw thread, B1, B2 ··· connecting thread, JB1 ··· jacquard reed, JB2 ··· jacquard reed, N ··· knitting needles row

Claims (5)

  A stretchable warp knitted fabric in which a plurality of knitted fabric portions are separably connected by a connecting portion in which a connecting portion made of an inelastic thread and an elastic thread is knitted, and in the connecting portion, the output thread is A loop is formed at a stitch position in the warp direction and a stitch row is formed by knitting so that the loop is missing at a stitch position for each predetermined interval, and the connecting yarns are arranged on both sides of the stitch row and adjacent to each other. An elastic warp knitted fabric which is knitted in the knitting structure of the knitted fabric portion and is formed by alternately forming loops in the missing positions of the stitch rows.   The elastic warp knitted fabric according to claim 1, wherein the connecting yarn is inserted into the knitted fabric of the knitted fabric portion and knitted before and after forming the loop of the missing position of the stitch row.   The knitted fabric portion is knitted by superposing a plurality of jacquard knitting structures, and the punched yarn is knitted as a knitting yarn of the jacquard knitting structure, and the connecting yarn is the punched yarn The elastic warp knitted fabric according to claim 1 or 2, which is knitted as a knitting yarn of another jacquard knitted fabric.   Stretchable yarns formed by knitting together with a plurality of knitted fabric portions a connecting portion obtained by knitting a connecting yarn consisting of a non-elastic yarn and a connecting yarn consisting of elastic yarns so as to releasably connect the plurality of knitted fabric portions at the connecting portion A method of knitting a knitted fabric, wherein the knitted fabric portion is knitted by superposing a plurality of jacquard knitting structures, and the punched yarn is looped at a stitch position in a warp direction as a knitting yarn of the jacquard knitting structure. At the same time as forming and forming a stitch row so that loops are missing at stitch positions at predetermined intervals and forming the stitch row, the connecting yarns are respectively disposed on both sides of the drawn yarn, and the jacquard knitting structure of the drawn yarn is A method of knitting an elastic warp-knitted fabric, which is knitted into the adjacent knitted fabric portion as the knitting yarn of another jacquard knitted structure and forming loops alternately at missing positions of the stitch rows.   The method of knitting an elastic warp knitted fabric according to claim 4, wherein the connecting yarn is inserted into the knitted fabric of the knitted fabric portion and knitted before and after forming the loop of the missing position of the stitch row.

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