JP5142064B2 - Elastic warp knitted fabric for body support - Google Patents

Description

  The present invention relates to a support for a frame of a body support device used indoors, outdoors, in a car, etc. to support a body such as a seat, chair, stool, backrest, leg rest, seat, sofa, bed, etc. It is related with the elastic warp knitted fabric for body support used in order to construct cushion surfaces, such as a seating surface and a backrest surface, which are stretched between the arm and the support and elastically support the body.

Mesh warp knitted fabrics that are knitted with a knitting yarn by a warp knitting machine and have continuous openings over a plurality of courses larger than the needle loop formed by the knitting yarn are known (for example, Patent Documents 1, 2, and 3). reference). A weft insertion warp knitted fabric or warp insertion warp in which insertion yarns are knitted in a straight line in the wale direction (knitting growth direction) or course direction (knitting width direction) of the base knitted fabric knitted by the main knitting yarn by a warp knitting machine. Knitted fabrics are known (see, for example, Patent Documents 4 and 5). It is also known to knit elastic yarn into a warp knitted fabric (for example, see Patent Documents 4, 6, and 7). It is also known to use a polyether ester elastic yarn as an elastic yarn to be knitted into the warp knitted fabric (for example, see Patent Document 6).
When the mesh warp knitted fabric is used for the cushion surface of the body support device, the air permeability is good and does not give a feeling of stuffiness, but it is easy to be loosened and loose, and the durability of the body support device is impaired.
In this respect, the weft insertion warp knitted fabric and the warp insertion warp knitted fabric knitted into the base knitted fabric using the elastic yarn as the insertion yarn do not generate loose dents or loose warps, and are excellent in terms of durability.
For that purpose, it is necessary to densely weave a thick monofilament elastic yarn having a single yarn fineness of 150 dtex or more so that the elongation stress at 10% elongation in the length direction of the elastic yarn is 100 (N / 5 cm) or more. It is said.
However, such a monofilament elastic yarn with a large single yarn fineness is smooth and strong in surface gloss like a fishing line, so the soft appearance and soft touch / texture peculiar to warp knitted fabrics are lost. A similar monotonous, slippery and productive body support device product cannot be obtained.

A double raschel warp knitting machine is used to connect double-knitted front and back fabrics with connecting yarns, and the front fabric is a mesh warp knitted fabric with an opening area of 1 mm ² or more with a thread removal mesh gap. A double elastic warp knitted fabric using an elastic yarn as a fabric and a connecting yarn is known (for example, see Patent Document 8).
This double elastic warp knitted fabric has a space between the front fabric and the back fabric, which is a forested void layer of connecting yarns, so it has excellent cushioning properties, and the back fabric that becomes elastic yarn covers the front fabric that becomes non-elastic yarn. As a result, it has a low gloss, is hard to slip, has a soft and subtle appearance.
However, in this double elastic warp knitted fabric, in order to prevent the void layer between the front and back fabrics from being crushed, the connecting yarn that connects the front and back fabrics has the same elasticity as the back yarn of the back fabric. A thread is used (see paragraphs 0060 and 0064 of Patent Document 8), and the connecting thread forms a needle loop that is integrated with the back thread on the back cloth, and is integrated with the front thread on the front cloth. Since the needle loop is formed, the needle loop of the elastic yarn (connecting yarn) integrated with the front yarn is exposed on the surface of the double elastic warp knitted fabric (front fabric).
For this reason, even if the gloss and slip of the backing cloth, which is an elastic yarn, are alleviated by being covered with the front cloth, the plastic-like gloss and slipperiness are not eliminated but are problematic.

A mesh warp knitted fabric with a thread removal mesh gap larger than a needle loop that is continuous over a plurality of courses, and the surface is composed of countless fiber fluff and pile fibers together with a smooth and strong glossy elastic yarn, A flat knitted elastic warp knitted fabric is known in which insertion yarns that are bulky and have a large apparent thickness are knitted in a straight line in the course direction or the wale direction (see, for example, Patent Document 9). This flat knitted elastic warp knitted fabric has a glossy, non-slippery, soft and calm delicate impression because the glossy and smoothness of the elastic yarn is suppressed by the thick insertion yarn wrapped in countless fiber fluff and pile fibers Since there is a thread removal mesh gap, the breathability is high, it gives a refreshing feeling, and does not give a stuffy feeling.
However, in this flat knitted elastic warp knitted fabric, in order to suppress gloss and slip due to the elastic yarn, if a large amount of thick insertion yarn wrapped in fiber fluff or pile fiber such as molding yarn is used, the number of insertion yarns to be used, That is, the elasticity of the flat knitted elastic warp knitted fabric decreases according to the relative usage ratio of the insertion yarn to the usage amount of the elastic yarn.
In that case, when the elastic yarn is used for the knitting yarn constituting the mesh warp knitted fabric with a thread removal mesh gap, the flat knitted elastic warp knitted fabric as a whole has a strong luster, is easy to slip, and is monotonous similar to a plastic product. Therefore, even if the flat knitted elastic warp knitted fabric is used, a body support device having a commercial value cannot be obtained.

JP 11-279906 A Japanese Utility Model Publication No. 56-103080 Japanese Utility Model Publication No. 54-139779 JP 11-279907 A Japanese Utility Model Publication 3-36555 Japanese Patent No. 3096356 Japanese Examined Patent Publication No. 62-60489 International Publication WO2004 / 15181 (Patent No. 3928178) International Publication WO2004 / 22827 (Patent No. 3928179)

  Therefore, the present inventor (1) each time passing through one hook of the first hook (front hook), it is arranged in 1 in 1 out without passing through the next hook, forming a knit loop. The first elastic thread sinker loop is formed in a straight line in the wale direction W, and a single heel needle for each of the fourth heel and the fifth heel (back heel) is provided between the adjacent chain knitting rows and chain knitting rows. Is connected by a second elastic yarn which is knitted as an insertion yarn which is arranged 1 in 1 out without passing through the next one needle and moves back and forth in the course direction C without forming a knit loop. (2) 1 inch that allows thread removal without passing through the three hooks every time it passes through one hook of the second and third hooks. 3 outs are arranged in the course direction C while forming knit loops. The warp knitted surface base fabric 27 knitted by the non-elastic first multi-fiber yarn 21 and the non-elastic second multi-fiber yarn 22 forming the sinker loops 23 and 24 crossing in the wale direction W by moving in the opposite directions, (3) The warp knitted surface base fabric 27 is superposed with the sinker loop surface facing the front side, and the needle loop surface of the warp knitted surface base fabric 27 facing the sinker loop surface of the warp knitted elastic base fabric, and (4) warp The needle loop of the first multi-fiber yarn and the needle loop of the second multi-fiber yarn of the knitted surface base fabric 27 are overlapped and integrated with the needle loop of the first elastic yarn of the warp knitted elastic base fabric, respectively. The warp knitted surface base fabric 27 and the warp knitted elastic base fabric are integrated to be front and back, and the finished product has a wal density of 20 wal / 25.4 mm and a course density of 19 course / 25.4 mm. Hen The fabric was knitted according to the knitting specifications shown in [Table 1] below.

As shown in FIG. 1, the warp knitted surface base fabric 27 is a dense raised portion 51 in which a sinker loop 23 of the first multi-fiber yarn and a sinker loop 24 of the second multi-fiber yarn intersect each space G. And the mesh gaps 52 through which the sinker loops penetrate without crossing each other, and the raised portions 51 and the mesh gaps 52 alternate in the course direction C, and as a whole have a checkered pattern-like appearance Since it becomes a rough mesh-like base fabric and light is transmitted through the mesh gap 52, the translucency of the elastic warp knitted fabric is increased.
Then, since the warp knitted elastic base fabric is covered with the warp knitted surface base fabric 27, the gloss of the plastic is suppressed, and a translucent elastic warp knitted fabric in which light passes through the mesh gap 52 is obtained.
However, even if the elastic warp knitted fabric is covered with the needle loop of the first multifilament yarn and the needle loop of the second multifilament yarn and the plastic luster due to the second elastic yarn is suppressed, The sinker loop of the first elastic yarn knitted on the surface is exposed on the surface and the plastic luster remains, and the warp knitted surface base fabric 27 has a rough mesh tone, so that it does not give an impression as a luxury product.

  The inventor also provides (1) a second knit loop that is arranged in a 2-in-1-out pattern that allows thread removal without passing through one hook every time it passes through two hooks. Each time when a sinker loop of one elastic yarn is formed straight in the wale direction W and passes between two adjacent knitting needles in the fourth and fifth folds (back folds) between adjacent chain knitting rows and chain knitting rows. Are connected by a second elastic yarn that is knitted as an insertion yarn that reciprocates in the course direction C without forming a knit loop, and is arranged in a 2-in-1-out manner that allows thread removal without passing through a single needle. On the sinker loop surface of the warp knitted elastic base fabric knitted in this way, (2) Every time the two hooks are passed through the first hook (front hook) and the second hook, the thread is removed without passing through one hook needle. Each of which is arranged as a knit loop while forming a knit loop. Warp knitting surface knitted base knitted by inelastic first multi-fiber yarns 21 and non-elastic second multi-fiber yarns 22 that form sinker loops 23 and 24 that cross in the wale direction W by moving in the opposite directions in the direction C. The fabric 27 is superposed so that (3) the sinker loop surface of the warp knitted surface base fabric 27 faces the front side, and the needle loop surface of the warp knitted surface base fabric 27 faces the sinker loop surface of the warp knitted elastic base fabric, (4) Polymerization in which the needle loop of the first multi-fiber yarn and the needle loop of the second multi-fiber yarn of the warp knitted fabric base fabric 27 are overlapped and integrated with the needle loop of the first elastic yarn of the warp knitted elastic base fabric, respectively. The needle loop 32 is formed, and the warp knitted surface base fabric 27 and the warp knitted elastic base fabric are integrated into the front and back, and the finished product has a wal density of 20 wals / 25.4 mm and a course density of 19 cranes / 25.4 mm. The elastic warp knitted fabric was knitted according to the knitting specifications shown in [Table 2] below.

As shown in FIG. 2, the warp knitted surface base fabric is a dense fabric in which a sinker loop 23 of the first multifilament yarn and a sinker loop 24 of the second multifilament yarn intersect the space G between the wales from which the yarn has been removed. The raised portions 51 and mesh gaps 52 where the sinker loops do not cross each other appear alternately, and unlike the cover fabric shown in FIG. 1 and [Table 1], the raised portions 51 and the mesh gaps 52 alternate in the course direction C. Since each of the ridges 51 is continuous in the course direction C, the raised portion 51 has a view of the horizontal ridge 61 continuous in the course direction, and the mesh gap 52 of the horizontal groove 71 corresponding to the horizontal ridge 61 continuous in the course direction. Appears as a whole and becomes a horizontal striped fabric.
The plastic gloss of the warp knitted elastic base fabric is suppressed by being covered with the warp knitted surface base fabric 27 constituted by multi-fiber yarns.
However, the cover fabric shown in FIG. 2 and [Table 2] has the mesh gap 52 formed at the bottom of the narrow lateral groove 71 of the course Cn in one row sandwiched between the lateral fence 61 and the lateral fence 61. The light leakage from the mesh gap 52 is small, giving a stiff and hard feel, and a light-transmitting elastic warp knitted fabric with a soft feel cannot be obtained.
Of course, as a method of widening the mesh gap 52, the winding amount of the warp knitted fabric at the time of knitting is increased to widen the space S between courses, and the number of thread removals is increased to increase the inter-wale space G ′ where the mesh gap 52 is formed. It is also possible to widen the range.
However, in that case, the warp density of the warp knitted elastic base fabric also becomes coarse, and it is difficult to obtain an elastic warp knitted fabric having a required elongation stress.

  Therefore, in the present invention, a large mesh gap 52 is formed in the warp knitted surface covering base fabric 27 without changing the weft density of the warp knitted elastic base fabric, the width of the lateral groove 71 is widened, and the horizontal rib 61 serving as a boundary with the lateral groove 71 is formed. An object of the present invention is to obtain a body-supporting elastic warp knitted fabric having a clear outline and having a pique fabric-like appearance.

The elastic warp knitted fabric for body support according to the present invention includes: (a-1) a first elastic yarn 11 that forms a chain stitch row 14 in which the sinker loop 13 continues straight in the wale direction W, and a first without forming a stitch. A warp knitted elastic base knitted by a second elastic yarn 12 inserted between a chain stitch row 14 and a chain stitch row 14 of adjacent first elastic yarns inserted between an elastic yarn sinker loop 13 and a needle loop 15. On the sinker loop surface of the cloth 16,
(A-2) Each time the needles are passed through a plurality of needles, they are arranged as thread removers without passing through the needles fewer than the number of needles, and are opposite to each other in the course direction C while forming a stitch. It is knitted by the non-elastic first multi-fiber yarn 21 and the non-elastic second multi-fiber yarn 22 that form sinker loops 23 and 24 that move and cross in the direction. A warp knitted surface fabric 27 having a corresponding raised portion 51 is
(A-3) The sinker loop surface of the warp knitted surface base fabric 27 is directed to the front side, the needle loop surface of the warp knitted surface base fabric 27 is superposed toward the sinker loop surface of the warp knitted elastic base fabric 16,
(A-4) The needle loop 25 of the first multi-fiber yarn and the needle loop 26 of the second multi-fiber yarn of the warp knitted surface fabric 27 are respectively connected to the needle loop 15 of the first elastic yarn of the warp knitted elastic base fabric 16. In the body-supporting elastic warp knitted fabric 30 that forms a superposed needle loop 32 that overlaps and is integrated, and the warp knitted surface base fabric 27 and the warp knitted elastic base fabric 16 are united.
(B) A plurality of courses C ₁ in which the first multi-fiber yarn 21 exposed directly on the sinker loop surface in the first and second multi-fiber yarns of the warp knitted surface fabric 27 continues before and after the wale direction W. The crossing sinker loop 29 that moves in the course direction C and crosses the wale direction W and the course direction at a rate of once per .about.C _n is formed.
(C) The first characteristic is that the crossover sinker loop 29 of the first multifilament yarn bends left and right with an amplitude of 3 spaces or more (3G or more) and continues in the wale direction W.

  The second feature of the elastic warp knitted fabric for body support according to the present invention is that, in addition to the first feature, (d) one of the left and right bending points where the sinker loop 23 of the first multifilament yarn is bent left and right. The first multifilament yarn 21 does not move in the course direction C and forms an orthogonal sinker loop 28 that is parallel to the wale direction W and orthogonal to the course direction C until reaching the next course that follows (P or Q). It is in the point.

  The third feature of the elastic warp knitted fabric for body support according to the present invention is that, in addition to the first feature, (e) the left and right bending points P · where the sinker loop 23 of the first multifilament yarn is bent left and right. The first multi-fiber yarn 21 forms an orthogonal sinker loop 28 that is parallel to the wale direction W and orthogonal to the course direction C without moving in the course direction C until the next course that follows before and after each Q. There is in point.

The fourth feature of the elastic warp knitted fabric for body support according to the present invention is that, in addition to any of the second and third features, (f) the orthogonal sinker loop 28 of the first multi-fiber yarn is provided in the wale direction. It is in the point formed continuously over a plurality of courses C _{1 to} C _n that follow W.

The fifth feature of the elastic warp knitted fabric for body support according to the present invention is that, in addition to any of the first, second, third and fourth features, (g) a multi-fiber of a warp knitted surface base fabric The yarns 21 and 22 are in a ratio of once per a plurality of courses C _{1 to} C _n that continue adjacent to each other in the wale direction W, and 3 to 8 rows of inter-wale spaces (indicated by the arrangement interval G of the needles) 3G to 8G) in the course direction C.

  The sixth feature of the elastic warp knitted fabric for body support according to the present invention is that in addition to any of the first, second, third, fourth and fifth features, (h) warp knitted elastic base fabric The second elastic yarns 12 inserted without forming the stitches are moving in the course direction C over 3 to 12 rows of inter-wale spaces (3G to 12G) indicated by the arrangement interval G of the heel needles. It is in.

According to the present invention (first aspect), the warp knitting mounting base cloth 27, multifilament yarns 21 and 22 courses spacing between a plurality of courses C ₁ -C _n subsequent moves in the course direction C [( n-1) × S], a mesh gap 52 is formed.
The needle loop 25 of the first multi-fiber yarn and the needle loop 26 of the second multi-fiber yarn of the warp knitted fabric base fabric 27 constituting the mesh gap 52 are respectively needle loops of the first elastic yarn of the warp knitted elastic base fabric 16. 15, even if the overlapping needle loop 32 is formed and the mesh gap 52 is enlarged, the warp knitted elastic base fabric 16 has no change in wale density or course density.
Therefore, according to the present invention (first feature), the translucency according to the space [(n−1) × S] between the courses between the plurality of courses C _{1 to} C _n followed by the mesh gap 52 is provided. Thus, the elastic warp knitted fabric 30 for body support having the required elongation stress corresponding to the wale density and the course density of the warp knitted elastic base fabric 16 is obtained.

In the present invention (second feature), the length of the cross-sinker loop 29 of the first multi-fiber yarn constituting the surface of the elastic warp knitted fabric is inclined with respect to the course C ₁ and the course C ₂ around it. Therefore, it becomes longer than the inter-course space S between the course C ₁ and the course C ₂ before and after that.
On the other hand, since the length of the orthogonal sinker loop 28 of the first multifilament yarn is orthogonal to the course direction, the distance from the course C ₁ to the course C ₂ that is before and after, that is, between the course C ₁ and the course C ₂ . It becomes the same length as the space S between courses.
Accordingly, the orthogonal sinker loop 28 does not become a raised ridge 61 like the crossed sinker loop 29 but forms a wide lateral groove 71 a corresponding to the horizontal ridge 61 constituting the crossed sinker loop 29.

On the other hand, a narrow horizontal groove 71b is interposed on one side of the horizontal bar 61 where the orthogonal sinker loop 28 is not formed, and the inclination of the cross sinker loop 29a and the cross sinker loop 29b adjacent to each other across the horizontal groove 71b is reversed. These crossing sinker loops 29a and 29b are sandwiched between the wide lateral groove 71a and the lateral groove 71a so as to present a thick arrowhead 61c.
And, in the mesh gap 52a formed in the wide lateral groove 71a, it is not sandwiched between the crossed sinker loop 29a (29b) and the crossed sinker loop 29a (29b), which are raised, and the narrow horizontal bar 61a ( In contrast to the mesh gap 52b intervening in 61b), it appears clearly.

  Therefore, according to the present invention (second feature), a sharp stripe pattern in which the thick horizontal grooves 61a provided with the arrowhead pattern and the thick horizontal grooves 71a in which the orthogonal sinker loops 28 are arranged is drawn, and the thick horizontal grooves 71a are depicted. An elastic warp knitted fabric that is highly transparent and has a mesh gap 52a and that is new in design can be obtained.

  According to the present invention (third feature), there is an orthogonal sinker loop 28 between each side ridge 61 and each side ridge 61 constituted by the cross sinker loop 29 of the first multi-fiber yarn constituting the surface of the elastic warp knitted fabric. A thick horizontal groove 71a is formed, and a beautiful stripe pattern in which the horizontal groove 61 and the horizontal groove 71b are alternately drawn is beautiful, and the mesh gap 52 is arranged in the thick horizontal groove 71a so that the body support exhibits high translucency. An elastic warp knitted fabric is obtained.

According to the present invention (fourth feature), the orthogonal sinker loop 28 of the first multifilament yarn is continuous over a plurality of courses C _{1 to} C _n continuing back and forth in the wale direction W, and the width F of the lateral groove 71a is set. The space between two courses (2S) or more can be more than twice the width E of the reed 61 by the cross sinker loop 29, and the mesh gap 52 becomes larger according to the width F of the lateral groove 71a. The translucency of the elastic warp knitted fabric is further increased.

In the lateral groove 71a, the orthogonal sinker loop 28 and the overlapping needle loop 32 are arranged in the course direction C, respectively, and their arrangement is repeatedly arranged in the wale direction W, respectively.
Then, since the width F of the lateral groove 71a becomes wide, the orthogonal sinker loop 28 and the superposed needle loop 32 appear as a ground pattern regularly scattered in the wide lateral groove 71a.
For this reason, the surface of the elastic warp knitted fabric 30 has a view as if a stripe pattern was drawn by the horizontal bar 61 on the ground pattern formed by the orthogonal sinker loop 28 and the polymerization needle loop 32, and also in the wale direction. A straight orthogonal sinker loop 28 that is straight and a horizontal rail 61 that is straight in the course direction present a view like a picket fabric with a checkered pattern that is orthogonal.

In the present invention (fifth feature), the multi-fiber yarns 21 and 22 of the warp knitted surface base fabric are moved in the course direction C by 3 to 8 rows of inter-wale spaces 3G indicated by the arrangement interval G of the heel needles. This is because the surface base fabric 27 is provided with a mesh gap 52 corresponding to thread removal to impart stretchability to the surface base fabric 27 so that the stretch base fabric 27 does not impair the stretchability of the elastic base fabric 16. .
Also, the space between the moving wales is set to 8G or less because the crossing sinker loops 29 adjacent to each other in the course direction C are overlapped and the horizontal rib 61 is expanded, and the mesh formed in the horizontal grooves 71 of the horizontal gaps 61 and 61 is formed. This is because the gap 52 is covered with the swollen crossing sinker loop 29 so that the translucency of the elastic warp knitted fabric 31 is not impaired.

In the present invention, in order to increase the translucency of the elastic warp knitted fabric 31, the thicker ones in which the orthogonal sinker loops 28 are arranged between the horizontal lines 61 and the horizontal lines 61 constituted by the cross sinker loops 29 of the first multifiber yarn. Although the horizontal groove 71a is formed, the number of the plurality of courses C _{1 to} C _n continuing back and forth in the wale direction W is such that the number of inter-course spaces S is 2 to 5 (S), that is, the horizontal groove The width F of 71a (the number of spaces S between courses) is set to not more than 5 times the width E (the number of spaces S between courses) of the reeds 61 so that the elastic warp knitted fabric 31 does not become a coarse mesh fabric. .

In the present invention (sixth feature), the space between the wales in which the second elastic yarn 12 moves in the course direction C is set to 3 G or more between the courses (C ₁ -C ₂ , C ₂ -C ₃ , C ₃ -C ₄ ), the second elastic yarns are intermittently aligned in the course direction C, ensuring the continuity of the second elastic yarns 12 in the course direction C, and the elastic base fabric 16 in the course direction C. This is to ensure the required elastic elongation stress.
Moreover, the space between the moving wales is set to 12 G or less because each course of the elastic base fabric 16 is filled with the second elastic yarns 12 so that the concealing property of the elastic base fabric 16 is improved. This is to prevent the translucent effect due to the mesh gap 52 from being impaired by the elastic base fabric 16.

In order to prevent the light transmission effect due to the mesh gap 52 of the cover base fabric 27 from being damaged by the elastic base fabric 16, the first elastic yarn 11 is also the same as the first multifiber yarn 21 and the second multifiber yarn 22. Each time it passes through a plurality of hooks, it is arranged as a thread remover without passing through a smaller number of hooks than the number of hooks, and the warp knitted surface covering fabric 27 is placed at the yarn removal point of the first elastic yarn 11. The mesh gaps 52 are overlapped.
In that case, the second elastic yarn 12 is also arranged so as to be pulled out in accordance with the first elastic yarn 11.

The elastic yarns 11 and 12 have an elongation stress at 10% elongation of 0.1 cN / dtex or more, preferably 0.2 to 0.8 cN / dtex, more preferably 0.2 to 0.4 cN / dtex, An elastic monofilament yarn having a single fiber fineness of 100 to 2000 dtex, a breaking elongation of 60% or more, and an elastic recovery rate of 15% or more after elongation of 90% or more, for example, a hard and hard monofilament yarn made of a polyether ester elastomer is used. Is done.
Therefore, even if it has some elasticity, ordinary thermoplastic synthetic fibers such as polyester fiber, polypropylene fiber, acrylic fiber, nylon, vinylon, etc., whose elastic recovery rate after a slight elongation of about 1% is 90% or more, Alternatively, elastic yarns such as rubber yarns and polyurethane elastic yarns having an elongation stress at 10% elongation of less than 0.1 cN / dtex are not used as elastic yarns in the present invention.
As the elastic monofilament yarn, a core-sheath composite filament having a sheath component polymer having a melting point lower than that of the core component polymer and having heat fusion properties is suitable.
An example of such a monofilament yarn made of a polyether ester elastomer is an elastic yarn manufactured and sold by Toyobo Co., Ltd. under the product name “Diaflora”.

The term “multi-fiber yarn” in the present invention is a general term for spun yarn and multi-filament yarn composed of a large number of fibers.
Preferred multifilament yarns 21 and 22 are crimped polyester multifilament yarns.
The total fineness of the multi-fiber yarns 21 and 22 is 1.1 to 4.0 times the total fineness of the elastic yarns, that is, the total fineness of the multi-fiber yarns 21 and 22 is made thicker than that of the elastic yarns 11 and 12.
In this case, “1.1 times” means that the total fineness of the multi-fiber yarns 21 and 22 and the total fineness of the elastic yarns 11 and 12 may be substantially the same.
The total fineness of the multifilament yarns 21 and 22 is set to 4.0 times or less of the total fineness of the elastic yarns 11 and 12 so that the stretchability of the elastic yarns 11 and 12 is not hindered by the multifilament yarns 21 and 22. In addition, the elastic warp knitted fabric for supporting the body is not thickened.

In order to obtain a soft touch elastic warp knitted fabric for body support, the elongation stress at the time of 10% elongation in the course direction C and the wale direction W may be set to 30 to 300 N / 5 cm.
In that case, the elongation stress at the time of 10% elongation in the course direction (knitting width direction) C of the elastic warp knitted fabric 30 for body support is 0% of the elongation stress at the time of 10% elongation in the wale direction (knitting growth direction) W. It is set to 5 times to 3.0 times, preferably 0.7 times to 2.5 times.
When the elongation stress at the time of 10% elongation in the course direction C and the elongation stress at the time of 10% elongation in the wale direction W are set to the same level, the elongation stress at the time of either 10% elongation is set to 30 N / 5 cm or more. Set.

In order to knit the elastic warp knitted fabric for body support, it is provided with five or more ridges, and the arrangement interval G of the heel needles is from 5.5 / cm (14 gauge / 吋) to 9.5 / cm (24 It is recommended to use a warp knitting machine.
In the case of using a warp knitting machine having a hook needle arrangement interval G of 5.5 yarns / cm (14 gauges / 吋), the wale density is generally about 18 wales / 25.4 mm.
In a warp knitting machine equipped with a five-sheet warp, the first multi-fiber yarn 21 that forms the sinker loop 23 exposed directly to the sinker loop surface, which is the surface of the elastic warp knitted fabric for body support, The second multi-fiber yarn 22 is passed through the second heel, the first elastic yarn 11 that will form the chain stitch row 14 is passed through the third heel, and the second elastic yarn 12 is passed through the fourth heel. Through the fifth hook (back hook), the fourth hook and the fifth hook (back hook) are swung in opposite directions, and the second elastic yarn 12 of the fourth hook and the second elasticity of the fifth hook (back hook). The yarn 12 connects the chain stitch row 14 and the chain stitch row 14 of the first elastic yarn simultaneously from the left and right.

When using a warp knitting machine equipped with a 6-sheet reed, the third elastic yarn is passed through the sixth reed as a back reed as a entangled yarn, and one stitch is swung without forming a stitch like the second elastic yarn. The third elastic yarn can be entangled with the chain stitch row 14 formed by the first elastic yarn.
When using a warp knitting machine equipped with a seven-sheet kite, the third elastic yarn is passed through the sixth kite and the seventh kite as the back kite as an entangled yarn, and the chain stitch row 14 formed by the first elastic yarn is used. The third elastic yarn can also be entangled from the left and right.
In a warp knitting machine provided with eight or more ridges, the first elastic yarn 11 is divided into two groups of the first group and the second group, or the second elastic yarn 12 is divided into the first group, the second group, and the third group. The elastic yarn and the multi-fiber yarn can be divided into several groups such as divided into four groups of a group and a fourth group, which can be introduced into different wrinkles.

  The sinker loop surface of the elastic warp knitted fabric 30 can be subjected to a raising process, the sinker loop 23 of the first multi-fiber yarn 21 can be raised, and the reed 61 can be fluffed.

The light transmittance of the elastic warp knitted fabric for body support is shown by the light shielding rate of the fabric measured according to JIS-L-1055. This is because the light transmittance and the light blocking rate of the fabric are inversely proportional.
The elongation stress at the time of 10% elongation of the elastic warp knitted fabric for body support is a 50 mm wide x 250 mm long test piece according to JIS-L-1018, the grip width is 50 mm, and the grip interval is 150 mm. The tensile (loading) speed is set to 200 mm / min, and the tensile load is measured when the elongation percentage of the test piece reaches 10%.
Hereinafter, the first multi-fiber yarn 21 is passed through the first reed (front reed) of the warp knitting machine having five reeds, the second multi-fiber yarn 22 is passed through the second reed, and the first elastic yarn is passed through the third reed. 11, an example of a body-supporting elastic warp knitted fabric knitted by passing a second elastic yarn 12 through a fourth heel and a fifth heel (back heel) will be described.

[Example 1]
In accordance with the knitting specifications shown in [Table 3] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and a crossed sinker loop 29 inclined alternately left and right is formed for each movement. The elastic warp knitted fabric was knitted and finished into a body-supporting elastic warp knitted fabric having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 2]
In accordance with the knitting specifications shown in [Table 4] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and a crossed sinker loop 29 inclined alternately left and right is formed for each movement. The elastic warp knitted fabric was knitted and finished into a body-supporting elastic warp knitted fabric having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 3]
In accordance with the knitting specifications shown in [Table 5] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and each time the sinker loop 23 is bent from left to right, the orthogonal sinker loop 28 is The elastic warp knitted fabric was formed and knitted, and finished into an elastic warp knitted fabric for body support having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 4]
According to the knitting specifications shown in [Table 6] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and each time the sinker loop 23 is bent from left to right, the orthogonal sinker loop 28 is The elastic warp knitted fabric was formed and knitted, and finished into an elastic warp knitted fabric for body support having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 5]
In accordance with the knitting specifications shown in [Table 7] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and the sinker loop 23 bends from left to right and from right to left. The elastic warp knitted fabric was formed by forming the orthogonal sinker loop 28 every time, and finished into an elastic warp knitted fabric for body support having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitted structure of the elastic base fabric 27 is shown in FIG. 7, the knitted structure of the cover base fabric 27 is shown in FIG. 8, and the knitted structure of the sinker loop surface of the cover base fabric 27 is shown in FIG. The knitted structure of the elastic warp knitted fabric is shown in FIG. 9 as a composite diagram in which the knitted structure of the elastic base fabric 27 of FIG. 7 and the knitted structure of the cover base fabric 27 of FIG.

[Example 6]
In accordance with the knitting specifications shown in Table 8 below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and the sinker loop 23 bends from left to right and from right to left. The elastic warp knitted fabric was formed by forming the orthogonal sinker loop 28 every time, and finished into an elastic warp knitted fabric for body support having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 7]
According to the knitting specifications shown in [Table 9] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every two courses, and the sinker loop 23 bends from left to right and from right to left. The elastic warp knitted fabric was formed by forming the orthogonal sinker loop 28 every time, and finished into an elastic warp knitted fabric for body support having a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm.
The knitting structure of the sinker loop surface of the cover base fabric 27 is as shown in FIG.

[Example 8]
According to the knitting specifications shown in [Table 10] below, the first multi-fiber yarn 21 is moved in the course direction C at a rate of once every three courses, and the sinker loop 23 bends from left to right and from right to left. An elastic warp knitted fabric is formed by forming orthogonal sinker loops 28 continuous over two courses each, and the elastic warp knitted fabric for body support has a wale density of 20 wale / 25.4 mm and a course density of 19 course / 25.4 mm. Finished.
The knitted structure of the elastic base fabric 27 is shown in FIG. 7, the knitted structure of the cover base fabric 27 is shown in FIG. 10, and the knitted structure of the sinker loop surface of the cover base fabric 27 is shown in FIG.

  The elastic warp knitted fabric knitted according to the knitting specifications shown in the above [Table 1] and the knitting structure of the cover base fabric 27 shown in FIG. The elastic warp knitted fabric in which the knitted structure of the cover base fabric 27 is shown in FIG. 2 is referred to as Comparative Example 2, and the elastic warp knitted fabrics of Examples 1 to 8 shown in contrast to the elastic warp knitted fabrics of those comparative examples. The light shielding ratio and the elongation stress are as shown in [Table 11] below.

In the present invention, the cross sinker loop 29 extends over a plurality of courses of two or more courses so that the orthogonal sinker loops 28 in the eighth embodiment are continuous in parallel with the wale direction W and orthogonal to the course direction C over two courses. It is also possible to form a continuous cross sinker loop that inclines to the left and right sides and continuously crosses the wale direction W and the course direction. In this way, the orthogonal sinker loop 28 is made continuous over a plurality of courses to increase the width of the lateral groove 71. Alternatively, the cross sinker loop 29 can be continuously inclined over a plurality of courses in the same direction to increase the width of the reed 61.
Further, the number of the courses (C _{1 to} C _n ) in which the orthogonal sinker loop 28 and the crossing sinker loop 29 are continuous is changed, and the stripes in which the horizontal grooves 61X, 61Y, 61Z and the horizontal grooves 71X, 71Y, 71Z having different widths are arranged. The pattern can also be drawn on the surface (sinker loop surface) of the elastic warp knitted fabric 30 for body support (FIG. 11).

  The second elastic yarn 12 is a first embodiment, a fourth embodiment, and a fifth embodiment according to the elongation stress at the time of 10% elongation in the course direction (knitting width direction) C required for the elastic warp knitted fabric 30 for body support. As shown in Examples 8 and 8, each course can be moved and inserted in the course direction C, and as shown in Examples 2, 3 and 6, and multiple courses It can also be inserted by moving in the course direction C every time.

It is a knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric which concerns on the comparative example of this invention. It is a knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric which concerns on the comparative example of this invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is a knitting structure diagram of an elastic base fabric of an elastic warp knitted fabric according to an example of the present invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is a knitting structure diagram of an elastic warp knitted fabric according to an example of the present invention. It is the knitted structure structure figure of the surface base fabric of the elastic warp knitted fabric based on the Example of this invention. It is the knitted structure structure figure by the 1st multifilament yarn and the 1st elastic yarn of the elastic warp knitted fabric which concerns on the application example of this invention.

Explanation of symbols

11: first elastic yarn 12: insertion second elastic yarn 13: first elastic yarn sinker loop 14: chain stitch row 15: first elastic yarn needle loop 16: elastic base fabric 21: first multifilament yarn 22: Second multi-fiber yarn 23: First multi-fiber yarn sinker loop 24: Second multi-fiber yarn sinker loop 25: First multi-fiber yarn needle loop 26: Second multi-fiber yarn needle loop 27: Outer base fabric 28: Orthogonal sinker loop 29: Crossing sinker loop 30: Warp knitted fabric 32: Polymerization needle loop 51: Raised portion 52: Mesh gap 61: Reed 71: Transverse groove C: Course direction W: Wale direction S: Inter-course space G: Space between wales (needle placement interval)
P: Turn point Q: Turn point

Claims (6)

(A-1) The first elastic yarn (11) forming the chain stitch row (14) in which the sinker loop (13) continues straight in the wale direction (W), and the first elastic yarn sinker loop without forming the stitch (13) and the second elastic yarn (12) inserted between the chain stitch row (14) and the chain stitch row (14) of the adjacent first elastic yarn inserted between the needle loop (15). On the sinker loop surface of the warp knitted elastic base fabric (16)
(A-2) Each time it passes through a plurality of needles, it is arranged as a thread remover without passing through a number of needles smaller than the number of needles, and in the course direction (C) while forming a stitch A mesh that is knitted by inelastic first multi-fiber yarns (21) and non-elastic second multi-fiber yarns (22) that form sinker loops (23, 24) that move in opposite directions and cross over, and responds to thread removal A warp knitted surface fabric (27) having a gap (52) and a raised portion (51) corresponding to the mesh gap,
(A-3) The sinker loop surface of the warp knitted surface base fabric (27) faces the front side, and the needle loop surface of the warp knitted surface base fabric (27) faces the sinker loop surface of the warp knitted elastic base fabric (16). Superimposed on the
(A-4) The needle loop (25) of the first multi-fiber yarn and the needle loop (26) of the second multi-fiber yarn of the warp knitted surface fabric (27) are respectively the first multi-fiber yarn needle loop (26). A superposed needle loop (32) is formed so as to overlap the needle loop (15) of one elastic yarn, and the warp knitted front base fabric (27) and the warp knitted elastic base fabric (16) are integrated into the front and back sides. In the elastic warp knitted fabric for body support (30),
(B) The first multi-fiber yarn (21) directly exposed on the sinker loop surface in the first and second multi-fiber yarns of the warp knitted surface fabric (27) is moved back and forth in the wale direction (W). The crossing sinker loop (29) that crosses in the course direction (C) by moving in the course direction (C) at a rate of once for a plurality of subsequent courses (C _{1 to} C _n ),
(C) The body support characterized in that the cross sinker loop (29) of the first multifilament yarn is bent to the left and right with an amplitude of 3 spaces or more (3G or more) and continues in the wale direction (W). Elastic warp knitted fabric. (D) The first multi-fiber yarn (21) until the next course following the left or right bending point (P or Q) where the sinker loop (23) of the first multi-fiber yarn bends left and right 2. The elastic support for body support according to claim 1, wherein an orthogonal sinker loop (28) is formed parallel to the wale direction (W) and perpendicular to the course direction (C) without moving in the course direction (C). Knitted fabric. (E) The first multi-fiber yarn (21) until the next course that follows the left and right bending points (PQ) where the sinker loop (23) of the first multi-fiber yarn bends left and right 2. The elastic support for body support according to claim 1, wherein an orthogonal sinker loop (28) is formed parallel to the wale direction (W) and perpendicular to the course direction (C) without moving in the course direction (C). Knitted fabric. (F) The above-mentioned claim 2, wherein the orthogonal sinker loop (28) of the first multifilament yarn is continuously formed over a plurality of courses (C _{1 to} C _n ) that continue in the wale direction (W). 4. The elastic warp knitted fabric for body support according to any one of 3 above. (G) The multi-fiber yarns (21, 22) of the warp knitted surface base fabric are in a ratio of once per a plurality of courses (C _{1 to} C _n ) that continue in the wale direction (W), and 5. The movement according to claim 1, wherein the movement is in the course direction (C) over 3 to 8 rows of inter-wale spaces (3G to 8G) indicated by the needle spacing (G). The elastic warp knitted fabric for body support described. (H) The second elastic yarn (12) inserted without forming the warp knitted elastic base fabric has three to twelve rows of inter-wale spaces (3G to 12G) indicated by the arrangement interval (G) of the needles. The elastic warp knitted fabric for body support according to any one of claims 1 to 5, wherein the elastic warp knitted fabric is supported in the course direction (C).

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