JP5174264B1 - Elastic pile warp knitted fabric, bandages, female face fasteners - Google Patents

Abstract

Disclosed is a stretch pile warp knitted fabric that is thin and excellent in durability.
An elastic pile warp knitted fabric includes a plurality of chain knittings 12 knitted by stretching a stretchy ground yarn 14 and a pair of adjacent chain knittings 12 using a pile yarn 18. The pile knitted fabric 17 is knitted so as to straddle the chain knitting with an interval G of two or more courses, and the insertion yarn 16 is inserted into each stitch 14a of the ground yarn 14 and the pile yarn 18. The pile loop 18b of the pile knitted fabric 17 is formed by contraction of the chain knitting 12 accompanying the relaxation of the ground yarn 14 after knitting.
[Selection] Figure 2

Description

  The present invention relates to an elastic warp knitted fabric having a pile surface, a bandage having the elastic warp knitted fabric, and a female surface fastener.

  As is well known, bandages are medical instruments for protecting affected areas and joints. In recent years, bandages have been provided with stretchability to improve the ability to suppress displacement and loosening after wearing. Patent Document 1 discloses an elastic warp knitted fabric as an example. The elastic warp knitted fabric of the same document inserts elastic warp into a zigzag for each of a plurality of chain knittings (carabiner needles) knitted with all the stitches closed, and several wales of these chain knittings Are connected by elastic wefts. In addition, there are some in which local creases are dotted by embossing or the like on the knitted fabric (or woven fabric). In this case, even if the yarn itself is not stretchable, the knitted fabric can be stretched by changing the degree of opening of the folds.

  On the other hand, as an example of a female surface fastener having a warp knitting structure, Patent Document 2 discloses a warp knitted base fabric for a surface fastener. The warp knitted base fabric for hook-and-loop fasteners of the same document is formed by knitting insertion yarns by a marquette structure into a net-like shape with respect to a warp knitted ground structure knitted by ground yarn and pile knitting yarn. This ground structure has a plurality of chain stitches knitted by ground yarn, and the pile knitting yarn is knitted so as to straddle between these wales. As a result, a pile loop of pile knitting yarn is obtained. In order to maintain the shape of the base fabric itself and prevent the pile loop from coming off, the back side of the base fabric is coated with a synthetic resin or the like.

  Patent Document 3 discloses a hook strip in which bowl-shaped resin hooks are arranged as an example of a male surface fastener. The hook is composed of a rod-shaped stem protruding from the support surface and a disk-shaped head formed integrally with the stem at the tip of the stem.

JP 2004-107820 A Japanese Utility Model Publication No. 6-29409 Japanese National Patent Publication No. 8-508910

  In order to fix the end of the bandage after winding, a bandage stopper, a surgical tape or a net bandage is used. However, the bandage stopper bites the bandage with a sharp nail, but when the bandage is wound around an affected part such as a joint, the bandage tends to come off from the bandage. Surgical tape can hold the bandage firmly by attaching a tape of sufficient length, but there is a problem that the adhesive part tends to break down the structure of the bandage. The net bandage can eliminate the above-mentioned problems, but the bandage is effectively wound twice, and there is a concern about the decrease in mobility due to the increase in the overall thickness on the patient side. There is a concern that the cost will increase.

  As another fixing device for solving such a problem, a male surface fastener having a large number of small hooks (buttocks) on the surface is conceivable. That is, the bandage functions as a female surface fastener that is locked to the male surface fastener. The male hook-and-loop fastener can secure a plurality of hooks to be locked to the bandage over a wide range as compared with a general bandage stopper. Moreover, it is not necessary to form a sharp nail | claw part along the direction which faces a bandage. Moreover, it is not necessary to wrap the entire bandage like a net bandage. However, since a general female-type surface fastener having stretchability is thick, when the knitted tissue is applied to the bandage, the wearability is deteriorated, and it is difficult to secure a sufficient number of windings of the bandage. In addition, the movement of the joint part tends to be difficult.

  In view of such circumstances, an object of the present invention is to provide an elastic pile warp knitted fabric that is thin and excellent in durability, a bandage having the elastic pile warp knitted fabric, and a female surface fastener.

A first aspect of the present invention is a stretchable pile warp knitted fabric, wherein a plurality of chain knittings are formed by stretching a stretchy ground yarn, and the pile yarn is used, A pile knitted fabric that is knitted so as to straddle between a pair of adjacent chain knitted fabrics and span two or more courses , and an insertion yarn that is inserted into the chain knitted fabric and the pile knitted fabric, after knitting The pile loop of the pile knitted fabric is formed by the shrinkage of the chain knitting accompanying the relaxation of the ground yarn.

  The stretchable pile warp knitted fabric may further include an auxiliary yarn having stretchability inserted in a zigzag manner with respect to the chain stitch.

  The ground yarn and the auxiliary yarn may include at least one of a polyurethane-based, polyetherester-based, and polyester-based stretchable yarn.

  The pile yarn may be a filament yarn.

  The second aspect of the present invention is a bandage and has the gist of having the stretchable pile warp knitted fabric according to the first aspect.

  The third aspect of the present invention is a female surface fastener, and has the gist of having the stretchable pile warp knitted fabric according to the first aspect.

  A fourth aspect of the present invention is a method for producing a stretchable pile warp knitted fabric using a Russell knitting machine, wherein a plurality of chain knittings are knitted by stretching a stretchy ground yarn, and the plurality of chain knittings Knitting a pile knitted fabric so as to straddle a pair of adjacent chain knitting with an interval of 2 courses or more, inserting an insertion yarn into each knitting of the ground yarn and the pile yarn, The gist is to form a pile loop of the pile knitted fabric by contraction of the chain knitting accompanying the relaxation of the ground yarn.

  In the manufacturing method, an auxiliary yarn having elasticity with respect to the chain knitting may be inserted into a zigzag.

  According to the present invention, it is possible to provide a stretchable pile warp knitted fabric that is thin and excellent in durability, a bandage having the stretchable pile warp knitted fabric, and a female surface fastener.

It is an organization chart of the warp knitted fabric (elastic pile warp knitted fabric) concerning one embodiment of the present invention. FIG. 2 is an enlarged three-dimensional view during knitting of the warp knitted fabric shown in FIG. 1. It is an organization chart of one modification of the warp knitted fabric concerning one embodiment of the present invention. It is an organization chart of one modification of the warp knitted fabric concerning one embodiment of the present invention. It is an organization chart of one modification of the warp knitted fabric concerning one embodiment of the present invention.

  Hereinafter, warp knitted fabrics according to embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted. As described below, the warp knitted fabric of the present embodiment has a plurality of pile loops on the surface, and has stretchability in the course direction (warp direction) Dc and the wale direction (weft direction) Dw. The warp knitted fabric can be used as, for example, a bandage or a female surface fastener (or a base fabric thereof). However, the present invention is not limited to these application forms.

  FIG. 1 is an organization chart (knitting pattern) of a warp knitted fabric (elastic pile warp knitted fabric) according to the present embodiment, and FIG. 2 is an enlarged three-dimensional view at the time of knitting of the warp knitted fabric shown in FIG. . As shown in these drawings, the warp knitted fabric of the present embodiment includes a plurality of chain knitted fabrics 12 knitted by stretch yarns 14, a pile knitted fabric 17 knitted by pile yarns 18, and a ground yarn. 14 and an insertion thread 16 inserted into each stitch 14a, 18a of the pile thread 18. Basically, the chain knitting 12 and the insertion yarn 16 define the overall shape (ground texture) of the warp knitted fabric, and the pile knitted fabric 17 is formed as the surface knitted fabric.

The warp knitted fabric of this embodiment is manufactured by a warp knitting machine such as a Russell knitting machine. As shown in FIG. 1, the pile yarn 18 to the reed (before reed) L ₁ of the warp knitting machine is Tsuito, reed (middle reed) L ₂ to ground yarn 14 is Tsuito, reed (rear reed) L ₃ The insertion thread 16 is passed through. Therefore, as described above, the pile yarn 18 forming the pile loop 18b is exposed most on the surface of the warp knitted fabric. As described below, may be Tsuito auxiliary yarns 22 to the guide bar L _4.

  As shown in FIG. 1, the ground yarn 14 knits the chain stitch 12. The chain stitch 12 has a structure of 02/20 // which is a basic structure of the chain stitch, for example. The chain knitting 12 is knitted with the ground yarn 14 extended, and contracted in the relaxed state after knitting. The degree of elongation of the ground yarn 14 during knitting of the chain knitting 12 (that is, the ratio of the length when stretched to the length of the relaxed state) is a degree necessary for the formation (that is, length and height) of the pile loop 18b described later. Is set to a value that provides a contraction of The degree of elongation depends on the material and thickness of the ground yarn 14. For example, when an FTY yarn having a 40 denier polyurethane yarn is used, it is preferably 200% or more.

  In this embodiment, the ground yarns 14 of all the chain stitches 12 are composed of stretch yarns described later, but the present invention is not limited to this. That is, the chain knitting 12 may be knitted with non-stretchable yarn for each predetermined wale. In this case, it is not necessary to apply tension similar to that of the stretchable yarn to the non-stretchable yarn.

  As described above, the ground yarn 14 is a stretchable yarn and includes at least a polyurethane-based stretch yarn (so-called spandex). Specifically, polyurethane filament twisted yarn (FTY), covering yarn obtained by wrapping yarn of other material (for example, nylon) around polyurethane filament, these polyurethane stretch yarn and non-stretch yarn are aligned. Such as yarn. The non-stretchable yarn is, for example, a spun yarn such as cotton or rayon, or a filament yarn such as nylon, polyester, or acrylic. The thickness of the ground yarn 14 is, for example, 10 to 420 denier when the ground yarn 14 is a polyurethane filament twisted yarn. In addition, as long as the elasticity equivalent to a polyurethane-type elastic thread is obtained, the elastic thread may be a thread of other materials. Examples of such yarn include polyether ester-based or polyester-based stretch yarn.

  The pile yarn 18 knits a pile knitted fabric 17 having a pile loop 18b. The pile yarn 18 of this embodiment is, for example, a filament yarn such as polyester or nylon, and the thickness thereof is, for example, 20 to 210 denier. A spun yarn can also be used as the pile yarn 18. The pile yarn 18 is knitted so as to straddle between a pair of adjacent chain stitches 12 with an interval G of two or more courses. By setting an interval G of two or more courses, a pile loop 18b is formed when the chain stitch 12 after knitting contracts. This facilitates locking by a hook (not shown) or the like of the male surface fastener. The length (size) of the pile loop 18 b can be determined according to the number of courses of the interval G, the degree of contraction of the ground yarn 14, that is, the adjustment of the tension of the ground yarn 14 when the chain knitting 12 is knitted. For example, when the tension of the ground yarn 14 at the time of knitting is increased in the interval G having a constant number of courses, a long pile loop 18b is formed, and the height protruding from the chain knitting 12 to the outside (front side) becomes high. Conversely, when the tension of the ground yarn 14 is lowered, a short pile loop 18b is formed, and the height protruding from the chain braid 12 to the outside (front side) is lowered.

  The stitches of the pile yarn 18 may be either closed or open as long as the gap G is maintained and the pair of adjacent chain stitches 12 are knitted. That is, the pile yarn 18 may be a closed structure such as the structure of 24/22/22/20/22/22 // shown in FIG. 1, and 42/22/22/02/22 / shown in FIG. An open-ended tissue such as a 22 // organization may be used.

  The mesh 18 a of the pile yarn 18 may be either forward or reverse with respect to the mesh 14 a of the ground yarn 14. In other words, the overlap direction of the ground yarn 14 constituting the chain knitting 12 and the overlap direction of the pile yarn 18 constituting the pile loop 18b may be the same direction or may be opposite to each other.

  The number (wale) of chain stitches 12 in which one pile yarn 18 is knitted is arbitrary. That is, one pile yarn like the structure of 46/44/44/42/22/22/20/22/22/24/44/44 // shown in FIG. 18 may be knitted into the chain stitch 12 having 3 wales or more. In any case, since the pile loop 18b is formed for each wale, a warp knitted fabric having a high density pile loop is formed.

  The insertion yarn 16 is inserted into the chain knitting 12 and the pile knitted fabric 17. In other words, it is inserted into each stitch 14a, 18a of the ground yarn 14 and the pile yarn 18. The insertion yarn 16 connects the chain knitting 12 in the wale direction Dw and connects the pile knitted fabric 17 to the chain knitting 12. Further, the insertion yarn 16 is zigzag inserted into the chain stitch 12 along the course direction Dc. FIG. 1 shows a structure of 00/66 // as an example of this structure, and is inserted into the chain stitch 12 so as to straddle the chain stitch 12 of at least one wale. The structure of the insertion thread 16 may be 66/00 // which is reversed with respect to the chain braid 12 of FIG. 1, or other structures (for example, 00/66/00/44 //, 00/66 / 44/1010/44/66 //). Further, in the case of a structure that straddles at least one chain of chain knitting 12, the insertion portion of the insertion yarn 16 is inserted by inserting the insertion yarn 16 in 1 in 1 out unless the connection of the chain knitting 12 is inhibited. It may be omitted. In addition, the structure | tissue of the insertion thread | yarn 16 is similarly knitted with respect to each of each structure | tissue (refer FIG.3, FIG.4, FIG.5) of the ground yarn 14 and the pile yarn 18 mentioned above.

  The insertion yarn 16 is, for example, a spun yarn such as cotton or rayon, or a filament yarn such as polyester or nylon. The thickness of the insertion yarn 16 is 16 to 80 in the case of spun yarn, and 20 to 300 denier in the case of filament yarn. There is no limitation on the number of twisted yarns constituting the spun yarn. That is, when a spun yarn is used for the insertion yarn 16, the spun yarn may be a single yarn or a twin yarn, or may be composed of a larger number of twisted yarns.

  As described above, while the warp knitted fabric of the present embodiment is knitted by the warp knitting machine, the chain knitting 12 is knitted with the ground yarn 14 extended. As a result, the chain stitch 12 in the relaxed state after knitting contracts more than during knitting. By this contraction, the warp knitted fabric contracts in any of the course direction Dc and the wale direction Dw, thereby imparting stretchability.

In order to increase the contraction force in the tension state (that is, in the state where the warp knitted fabric is stretched), as shown in FIG. 1, the auxiliary yarns 22 are inserted into the zigzag along the course direction Dc for each chain knitting 12. May be. The auxiliary yarn 22 is a stretchable yarn made of the same material as the base yarn 14, for example, 00/22 //, 00/00/22/22 //, 00/00/00/22/22/22. // inserted in tissues such as The auxiliary yarns 22 may be inserted into all the chain stitches 12, or the number of the chain stitches 12 to be inserted may be adjusted in accordance with a desired contraction force such as 1 in 1 out. When the auxiliary yarn 22 is inserted, the vertical relationship between the insertion yarn 16 and the auxiliary yarn 22 may be reversed. That is, through the inserting yarn 16 reed _{L 3} is a tissue of FIG 1, and, although through the auxiliary yarn 22 in the guide bar _{L 4,} the reed _{L 3} through the auxiliary thread 22, and, the inserting yarn 16 to the guide bar _{L 4} You may go through.

  Moreover, as shown in FIG. 5, the chain stitch 12 may have a structure of 02/20/02/20/00/02/20/02 //. That is, a portion straddling one course may be alternately added to the left and right in the wale direction with respect to the chain stitch 12. In this case, the pile knitted fabric 17 is knitted so that the stitch 18a of the pile yarn 18 is located in a portion where the stitch 14a of the ground yarn 14 (chain knitting 12) is not formed. Accordingly, the surface of the warp knitted fabric can be made smoother than the structure of FIG. 1 because the structure of FIG. 5 does not overlap the ground yarn 14 stitch 14a and the stitch 18a of the pile yarn 18.

As described above, the warp knitted fabric of the present invention has the following effects.
(1) The warp knitted fabric of the present invention includes a plurality of chain knitted fabrics knitted with stretch yarns. This chain knitting is stretched during knitting and contracts after knitting. Therefore, the warp knitted fabric after knitting is given extensibility in both the wale direction and the course direction as the chain knitting contracts. Furthermore, this contraction forms a pile loop on the surface. That is, according to the present invention, a pile warp knitted fabric having stretchability can be formed.

  (2) Further, in a conventional knitted fabric in which stretch yarns are simply inserted into a zigzag, so-called slip-in is easily generated in which the stretch yarns are buried in the knitted fabric after the knitted fabric is cut. On the other hand, in the warp knitted fabric of the present invention, the chain knitting constituting the ground structure is knitted with the stretch yarn itself. Moreover, by extending the stretch yarn during the knitting of the chain knitting, the chain knitting after the knitting contracts, and as a result, is tightly tightened. Therefore, the slip-in of the elastic yarn is difficult to occur and the cut portion is difficult to unravel. Since the cut portion is difficult to unravel, the durability of the warp knitted fabric is improved.

  (3) Since the ground yarn itself constituting the ground texture of the warp knitted fabric has stretchability, it is not necessary to intentionally form a fold for imparting stretchability to the warp knitted fabric. That is, the warp knitted fabric of this embodiment can be made thin. When the present invention is used as a bandage, the thickness after winding can be reduced, so that a good appearance can be obtained and interference with clothes can be reduced.

  (4) Both ends of each pile loop are knitted into the stitches of the ground yarn constituting the ground texture of the warp knitted fabric. Moreover, the entanglement between the ground yarn and the pile yarn is strengthened by the shrinkage of the ground yarn. Therefore, the pile loop is difficult to be unwound from the warp knitted fabric, and the durability as a pile fabric is improved. Further, heat fusion and resin processing for preventing the pile yarn from coming off become unnecessary.

  In addition, this invention is not limited to embodiment mentioned above, is shown by description of a claim, and also includes all the changes within the meaning and range equivalent to description of a claim.

L _{1 to} L ₄ ... 筬, 12 ... chain stitch, 14 ... ground yarn, 14a ... stitch of ground yarn, 16 ... insert yarn, 17 ... pile knitted fabric, 18 ... pile yarn, 18a ... stitch of pile yarn, 18b ... Pile loop, 22 ... Auxiliary thread

Claims (8)

A plurality of chain stitches knitted by stretching a stretchy ground yarn;
A pile knitted fabric that is knitted so as to straddle between a pair of adjacent chain knittings among the plurality of chain knittings and to span two or more courses using a pile yarn,
An insertion thread inserted into the chain knitting and the pile knitted fabric,
An elastic pile warp knitted fabric, wherein a pile loop of the pile knitted fabric is formed by contraction of the chain knitting accompanying loosening of the ground yarn after knitting.   The stretch pile warp knitted fabric according to claim 1, further comprising an auxiliary yarn having stretchability inserted in a zigzag manner with respect to the chain knitting.   The stretch pile warp knitted fabric according to claim 1 or 2, wherein the ground yarn and the auxiliary yarn include at least one of polyurethane, polyether ester, and polyester stretch yarns.   The stretch pile warp knitted fabric according to any one of claims 1 to 3, wherein the pile yarn is a filament yarn. A bandage comprising the stretchable pile warp knitted fabric according to any one of claims 1 to 4. A female type surface fastener having the stretchable pile warp knitted fabric according to any one of claims 1 to 4. A method for producing an elastic pile warp knitted fabric using a Russell knitting machine,
Stretch the ground yarn with elasticity to knit multiple chain stitches,
A pile knitted fabric is knitted so as to straddle a pair of adjacent chain stitches among the plurality of chain stitches with an interval of 2 courses or more,
Insert an insertion yarn into each stitch of the ground yarn and the pile yarn,
A method for producing a stretchable pile warp knitted fabric, wherein a pile loop of the pile knitted fabric is formed by contraction of the chain knitting accompanying loosening of the ground yarn after knitting.   Furthermore, the auxiliary yarn which has a stretching property with respect to the said chain stitch is inserted in a zigzag, The manufacturing method of the elastic pile warp knitted fabric of Claim 7 characterized by the above-mentioned.

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