JP4544958B2 - Three-dimensional warp knitted fabric with stretchability and compression recovery - Google Patents

Description

  The present invention relates to a three-dimensional warp knitted fabric, and more particularly to a three-dimensional warp knitted fabric excellent in compression recovery and shape retention after heat molding.

  Conventionally, a knitted fabric used for a brassiere cup or the like has a three-dimensional shape, and is generally formed into a three-dimensional shape by sewing. However, this method has the disadvantages that it requires time and advanced sewing techniques, and the cost is high. In addition, when wearing thin clothes, problems such as seeing through the sewn portion of the brassiere occurred.

  In order to solve these problems, some brassiere cups heat soften the knitted fabric at a temperature near the melting point or softening point of the thermoplastic yarn used in it, and then heat-soften the knitted fabric with gold. It has come to be manufactured by a so-called heat compression molding method or the like that is molded into an appropriate shape by pressing in a mold. These are made by using urethane foam resin or the like superimposed on a knitted fabric, and can be molded relatively easily. However, there is a problem that air permeability is poor and yellowing or embrittlement occurs due to aging.

  In order to improve this drawback, Patent Document 1 describes a brassiere cup of a non-woven fabric molded with a binder. However, since a binder is used, it is difficult to sufficiently control the texture and elasticity. Is insufficient, there is almost no compression restoring force when pressed and recessed, and it is not preferable because of changes in physical properties of the binder over time.

  Patent Document 2 describes one using a non-woven fabric using heat-sealing fibers. This is more flexible and breathable than when a binder resin is used, but those using non-woven fabrics lack in durability for washing, and those that satisfy shape retention and compression recovery properties have not been obtained. .

Further, Patent Document 3 discloses an accessory formed by heat compression molding a three-dimensional hollow fabric in which a surface layer portion and a back surface layer portion are connected to each other with a connecting thread constituting an intermediate hollow portion. A molded product is described. Although the washing durability is improved, the connecting yarn is bent by heat compression molding, the connecting yarn jumps out, the connecting portion is crushed, and there is a possibility that the compression restoring property cannot be sufficiently obtained.
JP 50-1000037 A2 JP 55-148267 A JP 2000-199104 A

  The object of the present invention is to solve the above-mentioned drawbacks of the prior art, have a soft texture, good compression recovery and shape retention, and can be used for clothing such as brassiere cups and is suitable for heat compression molding. To provide warp knitted fabric.

  That is, the present invention provides a three-dimensional warp knitted fabric excellent in thickness retention, compression recovery, and shape retention after heat compression molding.

The present invention is (1) in a three-dimensional warp knitted fabric in which front and back ground structures are connected with connecting yarns and elastic yarns are used for the ground texture, and the connecting yarns are composed of yarns having a single yarn fineness of 3 to 11 dtex. A multifilament yarn having a fineness of 33 to 110 dtex is used, and a plurality of connecting yarns connect the front and back ground structures at different angles and / or directions, and the number of connecting yarns per loop is the multifilament yarn 3. ~ 6, the number of connected yarns is 5500-24000 / inch ² , the total fineness of the connected yarn is 181000-2640000 dtex / inch ^2, and the fabric elongation at 22.06N load is vertical and horizontal It is a three-dimensional warp knitted fabric having a fabric hysteresis of 30 to 150% and a warp and width of 20 to 60% when stretch rate is 30%.

Also, a three-dimensional structure warp knitted fabric according to (2) place the number of loops tissue, characterized in that 2,000 to 4,000 loops / inch ² (1).

( 3 ) The elastic yarn is a polyurethane elastic yarn having a fineness of 44 to 310 dtex, and the proportion of the elastic yarn in the three-dimensional warp knitted fabric is 6 to 30% (1) or (2 ) Is a three-dimensional structure warp knitted fabric.

( 4 ) The three-dimensional warp knitted fabric according to any one of (1) to ( 3 ), wherein the fabric thickness of the three-dimensional warp knitted fabric is 3 to 10 mm.

  According to the present invention, with respect to high temperature and high pressure at the time of heat compression molding, it has excellent thickness retention, shape retention, stretchability, compression recovery, soft texture, and can be suitably used for clothing such as brassiere cups. Warp knitted fabric can be provided.

  The present invention is a three-dimensional warp knitted fabric that can be used for apparel such as brassiere cups, which are composed of front and back ground structures and connecting yarns that connect the ground structures. The three-dimensional warp knitted fabric of the present invention refers to a three-layer structured knitted fabric manufactured by a knitting machine having two (two rows) needle beds and obtained by a double raschel knitting machine or a double jersey knitting machine. Among them, one knitted using a double raschel knitting machine is particularly preferable because it is the cheapest and can be easily produced.

  FIG. 1 schematically shows a main knitting part when a three-dimensional warp knitted fabric of the present invention is knitted by a double raschel machine. In the figure, the knitting yarns A1 to A6 fed from the beams 11 to 16 are guided to the knitting portion through the guides G1 to G6 of the reeds L1 to L6, respectively, and the reeds L1 to L6 and the two knitting needles 9, 10 perform a predetermined knitting motion, and the three-dimensional structure warp knitted fabric 20 is knitted. For example, the knitting yarns A1 and A2 knitting the surface fabric 17 constituting the front knitted fabric, and the knitting yarns A5 and A6 knitting the lining fabric 18 constituting the back knitted fabric. Further, the knitting yarns A3 and A4 are knitted so as to be connected to the front and back ground structures 18 and 17 alternately by the ridges L3 and L4 as connecting threads to connect the front and back ground structures.

  The knitting yarns A3 and A4 which are the connecting yarns, as shown in an organization chart of an embodiment described later, are, for example, for one stitch or plural when the front and back fabrics 17 and 18 are passed from one to the other. It is particularly preferable that the needles (preferably 2 to 3 needles) are knitted so as to be swung across at different angles and / or directions by swinging in opposite directions. By knitting in this way, the plurality of connecting yarns connected to each loop support the pressure in the thickness direction at different angles and / or directions, so that the thickness retention property and the compression recovery property are excellent.

  In the present invention, the yarn constituting the three-dimensional warp knitted fabric includes polyester fibers, polyamide fibers, cellulose regenerated fibers, polyacrylonitrile fibers, natural fibers such as cotton, silk, and wool, and mixed fibers thereof. However, it is preferable that the polyester fiber is mainly used from the viewpoints of heat compression moldability, compression resilience, shape retention such as washing resistance, and flexibility.

  In the present invention, in the three-dimensional warp knitted fabric in which the front and back ground structures are connected with connecting yarns as described above, the fabric elongation at a load of 22.06 N is 30 to 150% for both warp and width, preferably 70 to 70 This is a three-dimensional warp knitted fabric having a fabric hysteresis of 150%, width 50-80%, and warp and width 20% to 60% when the elongation rate is 30%.

  If the fabric elongation is less than 30%, there is a risk that the compression / restorability will be insufficient and sufficient shape retention will not be obtained. If the fabric elongation is greater than 150%, the fabric hysteresis will increase and the compression / restorability and shape retention will deteriorate. There is a fear. Further, if the fabric hysteresis is less than 20%, the time required for molding becomes longer or the temperature has to be increased, so that the fabric material may be embrittled such as yellowing. On the other hand, if it exceeds 60%, the compression / restorability after molding may be deteriorated.

The hysteresis at 30% elongation referred to in the present invention is obtained from the following [Equation 1], and the larger the numerical value, the larger the power loss, and the lowering of the shape-retaining property due to the decrease in compression recovery. To do. On the other hand, when the numerical value is small, it means that the compression / restorability is improved and the shape retention is improved.
[Formula 1]
Fabric hysteresis at 30% elongation (%) = ((30% elongation-30% tension) ÷ 30% elongation) x 100

  The three-dimensional warp knitted fabric of the present invention has excellent shape retention and flexibility such as heat compression moldability, compression resilience, and washing resistance by simultaneously satisfying the above fabric elongation and fabric hysteresis. Can do.

  The connecting yarn used in the present invention is preferably a multifilament yarn having a fineness of 33 to 110 dtex composed of a yarn having a single yarn fineness of 3 to 11 dtex. If the single yarn fineness is less than 3 dtex, the strength and elastic force of the fiber are weak, so that the shape retention may be deteriorated. If it is greater than 11 dtex, the texture of the fabric may be cured and the texture may be deteriorated. Further, when the fineness of the connecting yarn is less than 33 dtex, there is a possibility that the shape retention is deteriorated because the elasticity of the fiber is weak. When the connecting yarn is a monofilament, it is not preferable because high temperature and high pressure are applied at the time of molding, which may harden and lose flexibility, and may deteriorate the shape-retaining property and compression / restoration property of the fabric, or may jump out to the ground surface. .

  In the present invention, it is preferable to use a multifilament yarn having a fineness of 33 to 110 dtex composed of a yarn having a single yarn fineness of 3 to 11 dtex as a connecting yarn. By connecting the ground structures of the front and back at different angles and / or directions, the connecting yarns are excellent in compression recovery. In particular, the use of multifilament yarns as connecting yarns makes it difficult for the yarn to harden even when heated compared to monofilament yarns of the same fineness, so that the flexibility of the fabric is less likely to be impaired, and sufficient thickness retention and maintenance are maintained. The formability and compression / decompression performance can be secured.

Furthermore, (connection number between front and back ground tissue) said number of connecting yarns made of multifilament yarn is 5,500 to 24,000 present / inch ^2, more preferably from 5,900 to 20,000 present / inch ^2. If the number of the connecting yarns is less than 5500 / inch ² , there is a possibility that the fabric thickness after molding cannot be sufficiently ensured, and the compression recovery property and shape retention property cannot be ensured. Further, if the number of the connecting yarns is greater than 24000 / inch ² , the flexibility of the fabric may be impaired, or wrinkles may occur during molding. In the present invention, the number of connecting yarns is obtained by the following formula.
Number of connected threads = Number of connected threads connected to one loop x (course / inch) x (well / inch)

Further, it is preferable that the total fineness of the connecting yarn which is constituted in this way is 181500~2640000dtex / inch ^2. If the total fineness of the connecting yarn is less than 181,500 dtex / inch ² , there is a possibility that the fabric thickness after molding cannot be ensured sufficiently, and that compression recovery and shape retention cannot be ensured. On the other hand, if it exceeds 2640000 dtex / inch ^2, the flexibility of the fabric may be impaired, or wrinkles may occur during molding. The total fineness of the connecting yarn of the present invention can be obtained by the following formula.
Total fineness of connecting yarn = number of connecting yarns x fineness of multifilament yarn used for connecting yarn

  Further, the above-mentioned connecting yarn portion of the three-dimensional warp knitted fabric of the present invention is preferably composed of 3 to 6 filament yarns per loop, and more preferably 3 to 5 yarns. . If it is 2 or less, the compression / restorability is impaired, and if it is 7 or more, the knitted fabric becomes hard and the stretchability may be impaired.

  The elastic yarn used in the present invention can be used as long as it has elasticity. As the elastic yarn, known ones such as polyester crimped yarn, polybutylene terephthalate, and polyurethane-based elastic yarn can be used, but the fineness is easy in that it is easy to obtain a fabric having the elongation and hysteresis specified in the present invention. A 44 to 310 dtex polyurethane elastic yarn, preferably a 78 to 235 dtex polyurethane elastic yarn is used. When the fineness of the polyurethane-based elastic yarn is less than 44 dtex, sufficient shrinkage cannot be obtained, so there is a risk that the compression recovery property and shape retention will be poor. When the thickness is larger than 310 dtex, the fabric texture is cured and the moldability is poor. There is a risk of becoming. Furthermore, the proportion of the elastic yarn in the three-dimensional warp knitted fabric is 6 to 30%, preferably 10 to 20%. If the ratio of the elastic yarn is less than 6%, a sufficient shrinkage force cannot be obtained, so that there is a possibility that the compression recovery property and the shape retaining property are not sufficient, and if it exceeds 30%, the shrinkage force becomes too large and the fabric is heavy. Or the texture may become hard.

Further, the number of loops of the ground structure of the present invention is preferably 2,000 to 4,000 loops / inch ^2. Furthermore, 2200-3600 loop / inch ² is preferable. The number of loops according to the present invention can be obtained by (number of courses of the ground texture of a three-dimensional structure warp knitted fabric / inch) × (number of wells / inch).
If the number of loops is less than 2000 loops / inch ² , there is a possibility that the compressibility of the fabric cannot be sufficiently secured, and if it exceeds 4000 loops / inch ² , the fabric may become hard or the stretchability may be impaired. .

  Further, the fabric thickness of the three-dimensional warp knitted fabric is preferably 3 to 10 mm. If the thickness is less than 3 mm, the thickness after molding becomes insufficient and the shape retaining property is deteriorated, and there is a possibility that problems such as loss of compression / restorability and easy see-through may occur. On the other hand, if it is thicker than 10 mm, the fabric may become heavy or the texture may be deteriorated.

  Since the fabric elongation and the hysteresis are in the range of 30 to 120% and 20 to 60%, respectively, by setting the composition of the connecting yarn, the fabric thickness, the knitting density, and the like as described above, the present invention. The three-dimensional structure warp knitted fabric has excellent thickness retention even when subjected to heat compression molding, and is excellent in compression recovery and shape retention.

  EXAMPLES Hereinafter, although the Example of this invention is given with a comparative example and this invention is demonstrated concretely, this invention is not limited to a following example.

[Evaluation methods]
1. Elongation Using an autograph (manufactured by Shimadzu Corporation), a sample of a pre-molded sample (length 250 mm x width 25 mm) is initially set at 100 mm between chucks, stretched at a speed of 300 mm / min, and the load is 22.06 N The elongation of was measured.
2. Dough Hysteresis Using an autograph (manufactured by Shimadzu Corporation), a sample before molding (length 250 mm x width 25 mm) is initially set at 100 mm between chucks and up to 140 mm (40% elongation) at a speed of 300 mm / min. After stretching, remove the load and recover. This operation was repeated three times, and the load at the time of 30% extension (30% extension force) and the load at the time of 30% recovery (30% tension force) were read from the third SS curve and obtained from the following formula. A smaller hysteresis value (%) indicates better compression recovery.
Fabric hysteresis at 30% elongation (%) = ((30% elongation-30% tension) ÷ 30% elongation) x 100
3. Compressive decompression property When compressing and returning the three-dimensional structure warp knitted fabric after molding at a speed of 1 mm / sec with a load of 30 g / cm ² using a compression tester (KES-G5 manufactured by Kato Tech Co., Ltd.) The force and distance are represented by an SS curve, and the total force when compressing (WC) and the total force when returning (WC ") are expressed as compression resilience values (%). Represents a good thing.
Compression resilience (%) = WC “(gf · cm / cm ² ) ÷ WC (gf · cm / cm ² ) × 100
4). Shape retention (washing resistance)
According to JIS-L-1096E method, the height change after washing the cup after molding 10 times was measured.

[Example 1]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 3, using a polyurethane elastic yarn of 78 dtex for the heel L1 and a polyester yarn of 56 dtex / 24f for the heel L2, as shown in FIG. 66dtex, knitted back fabric using 56dtex / 24f polyester yarn for heel L5 and 78dtex polyurethane elastic yarn for heel L6, and twisted two 33dtex / 6f polyester yarns as connecting yarn A 12 / 12f yarn is used for the heel L3, and a 33 dtex / 6f polyester yarn is used for the heel L4, knitting to connect the ground structure of the front and back, 52 course 34 well (between inches), three-dimensional structure with a width of 141cm A warp knitted fabric was obtained. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared. The elongation of this three-dimensional warp knitted fabric was 74% vertical and 43% horizontal. Further, the dough hysteresis at 30% elongation was 29.1% in the vertical direction and 54.2% in the horizontal direction.
The loop density of the front and back fabric of the three-dimensional warp knitted fabric is 2400 pieces / inch ² and the number of connecting yarns (the number of connected yarn portions stretched between the front and back fabric structures) is 7200 pieces / inch ² . the total fineness of the yarn was 237600dtex / inch ^2.
The created three-dimensional warp knitted fabric 20 is sandwiched between a mold 19 and a mold 21 using a molding machine as shown in FIG. 2, and the depth is 8 cm under the conditions of load 2 t, temperature 200 ° C., 60 seconds. Then, a heat compression molding process was applied to a hemisphere having a diameter of 10 cm, and compression recovery and shape retention were evaluated. The evaluation results are shown in Table 1.

[Example 2]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 4, using a polyurethane elastic yarn of 78 dtex for the heel L1, and a polyester fabric of 56 dtex / 24f for the heel L2, as shown in FIG. 66dtex / in which 56dtex / 24f polyester yarn is used for the heel L5 and 78dtex polyurethane elastic yarn is used for the heel L6, and two 33dtex / 6f polyester yarns are twisted together as the connecting yarn. A 12-f yarn was used for reed L3 and reed L4 to knit the front and back fabrics together to obtain a three-dimensional warp knitted fabric with 50 courses, 36 wells (between inches), and a width of 133 cm. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 7.0 mm and a width of 120 cm was prepared.
The elongation of this three-dimensional warp knitted fabric was 82% vertical and 48% horizontal. The fabric hysteresis at 30% elongation was 26.4% vertical and 48.0% horizontal.
The loop density of the ground structure of the three-dimensional warp knitted fabric was 2400 pieces / inch ² , the number of connecting yarns was 9600 pieces / inch ² , and the total fineness of the connecting yarns was 316800 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Example 3]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 5, using a polyurethane elastic yarn of 130 dtex for the heel L1, and a polyester yarn of 56 dtex / 24f for the heel L2, as shown in FIG. 66dtex / which knitted the back side fabric using 56dtex / 24f polyester yarn for heel L5 and 130dtex polyurethane elastic yarn for heel L6, and twisted two 33dtex / 6f polyester yarns as connecting yarn 3D warp knitted fabric with 58 courses, 36 wells (between inches), and 146cm width, using 12f yarn for heel L3 and knitting L4 with 33dtex / 6f polyester yarn to connect the front and back fabrics Got. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared.
The elongation of this three-dimensional warp knitted fabric was 96% vertical and 55% horizontal. Further, the dough hysteresis at 30% elongation was 22.4% vertically and 40.5% horizontally.
The loop density of the ground structure of the three-dimensional warp knitted fabric was 3080 pieces / inch ² , the number of connecting yarns was 9240 pieces / inch ² , and the total fineness of the connecting yarns was 304920 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Example 4]
Using a double Russell machine (RD6DPLM-77E-28G: manufactured by Meyer), as shown in FIG. 66dtex / in which 56dtex / 24f polyester yarn is used for the heel L5 and 44dtex polyurethane elastic yarn is used for the heel L6. Using a 12f yarn for the heel L3, and using a 33dtex / 6f polyester yarn for L4 to connect the front and back fabrics, a 51 course 34 well (between inches), a three-dimensional structure warp knitted fabric with a width of 141cm Obtained. The resulting three-dimensional warp knitted fabric was preset at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared. The ridges L1 and L6 for knitting the ground structure were knitted so as to form a stitch by swinging left and right by two stitches for each course.
The elongation of this three-dimensional warp knitted fabric was 77% vertical and 47% horizontal. Further, the dough hysteresis at 30% elongation was vertical 27.4% and horizontal 51.2%.
The loop density of the ground structure of the three-dimensional warp knitted fabric was 2400 pieces / inch ² , the number of connecting yarns was 7200 pieces / inch ² , and the total fineness of the connecting yarns was 237600 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate resilience and shape retention. The evaluation results are shown in Table 1.

[Example 5]
Using a double russell machine (RD6DPLM-77E-22G: made by Meyer), as shown in FIG. 7, using a polyurethane elastic yarn of 78 dtex for the heel L1 and a polyester yarn of 56 dtex / 24f for the heel L2, as shown in FIG. 66dtex / 12f knitted back fabric using 56dtex / 24f polyester yarn for L5 and 78dtex polyurethane elastic yarn for L6, and twisted two 33dtex / 6f polyester yarns as connecting yarn Were used for heel L3 and heel L4 so as to connect the front and back fabrics to obtain a three-dimensional warp knitted fabric with 51 courses, 34 wells (between inches) and a width of 129 cm. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 4.0 mm and a width of 110 cm was prepared. The elongation of this three-dimensional warp knitted fabric was 97% vertical and 63% horizontal. The fabric hysteresis at 30% elongation was vertical 43.3% and horizontal 63%.
Further, the loop density of the ground structure of this three-dimensional warp knitted fabric was 2400 pieces / inch ² , the number of connecting yarns was 9600 pieces / inch ² , and the total fineness of the connecting yarns was 316800 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Comparative Example 1]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 8, a 44 dtex polyurethane elastic yarn is used for heel L1, and a 56 dtex / 24f polyester yarn is used for heel L2, as shown in FIG. Knitting the back side fabric using 56 dtex / 24f polyester yarn for heel L5 and 44 dtex polyurethane elastic yarn for heel L6, and using 33 dtex / 6f polyester yarn as linking yarn for heel L3 and L4 The knitted fabric was knitted so that the front and back fabrics were connected to obtain a three-dimensional warp knitted fabric having 46 courses of 32 wells (between inches) and a width of 142 cm. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared.
The elongation of the three-dimensional warp knitted fabric was 70% vertical and 39% horizontal. Further, the dough hysteresis at 30% elongation was 56.8% vertically and 71.4% horizontally.
In addition, the loop density of the ground structure of this three-dimensional warp knitted fabric was 1872 pieces / inch ² , the number of connecting yarns was 3744 pieces / inch ² , and the total fineness of the connecting yarns was 123552 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Comparative Example 2]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 9, a 44 dtex polyurethane elastic yarn is used for the heel L1, and a 56 dtex / 24f polyester yarn is used for the heel L2. Knitting the back side fabric using 56dtex / 24f polyester yarn for heel L5 and 44dtex polyurethane elastic yarn for heel L6, and using 33dtex / 1f polyester yarn as linking yarn for heel L3 The knitted fabric was knitted so as to connect the lining structure, and a 45 course 32 well (between inches) and a solid structure warp knitted fabric having a width of 135 cm were obtained. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared.
The elongation of the three-dimensional warp knitted fabric was 77% vertical and 52% horizontal. Moreover, the dough hysteresis at 30% elongation was 50.2% vertical and 66.7% horizontal.
Further, the loop density of the ground structure of the conformational warp-knitted fabric in 1908 cells / inch ^2, the number of the connecting yarn is 1908 present / inch ^2, the total fineness of the connecting yarn was 62964dtex / inch ^2.
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Comparative Example 3]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 10, a 44 dtex polyurethane elastic yarn is used for heel L1, and an 84dtex / 36f polyester yarn is used for heel L2, as shown in FIG. Knitting the back side fabric using 84dtex / 36f polyester yarn for heel L5 and 44dtex polyurethane elastic yarn for heel L6, and using 56dtex / 24f polyester yarn as linking yarn for heel L3, L4 The knit fabric was knitted to connect the front and back fabrics to obtain a three-dimensional warp knitted fabric of 47 courses, 32 wells (between inches), and a width of 135 cm. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then finished for 100 seconds at 160 ° C., 56 courses, 36 wells (between inches), A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared.
The elongation of this three-dimensional warp knitted fabric was 48% vertical and 41% horizontal. Further, the dough hysteresis at 30% elongation was 60.7% vertically and 74.0% horizontally.
Further, the loop density of the ground structure of this three-dimensional warp knitted fabric was 1890 pieces / inch ² , the number of connecting yarns was 3780 pieces / inch ² , and the total fineness of the connecting yarns was 211680 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate the compression recovery and shape retention. The evaluation results are shown in Table 1.

[Comparative Example 4]
Using a double russell machine (RD6DPLM-77E-28G: made by Meyer), as shown in FIG. 11, a 33dtex polyurethane elastic yarn is used for the heel L1, and a 56dtex / 24f polyester yarn is used for the heel L2. Knitting the back side fabric using 56 dtex / 24f polyester yarn for heel L5 and 33 dtex polyurethane elastic yarn for heel L6, and using 33 dtex / 12f polyester yarn as linking yarn for heel L3 and L4 Thus, a three-dimensional warp knitted fabric having 52 courses and 36 wells (between inches) and a width of 133 cm was obtained by knitting so as to connect the front and back fabric structures. The resulting three-dimensional warp knitted fabric was pre-set at 185 ° C. for 60 seconds, dyed at 130 ° C. for 20 minutes, dried, and then subjected to a finishing set at 160 ° C. for 100 seconds. A three-dimensional warp knitted fabric having a thickness of 5.0 mm and a width of 120 cm was prepared.
The elongation of this three-dimensional warp knitted fabric was 66% vertical and 38% horizontal. The fabric hysteresis at 30% elongation was 68.5% vertical and 79.2% horizontal.
In addition, the loop density of the ground structure of this three-dimensional warp knitted fabric was 1872 pieces / inch ² , the number of connecting yarns was 3744 pieces / inch ² , and the total fineness of the connecting yarns was 123552 dtex / inch ² .
The created three-dimensional warp knitted fabric was subjected to heat compression molding under the same conditions as in Example 1 to evaluate resilience and shape retention. The evaluation results are shown in Table 1.

  As is clear from Table 1 above, in Comparative Examples 1 to 4, the hysteresis at 30% elongation is relatively large, the loop density of the ground structure, the number of connected yarns and the total fineness are slightly low, and the compression recovery property However, in the case of Examples 1 to 5, the hysteresis at 30% elongation is in the range of 20 to 60% for both vertical and horizontal, whereas the shape retention (washing resistance) is not sufficient. In addition, the loop density of the ground structure, the number of connected yarns and the total fineness are also high, and the compression recovery and shape retention (washing resistance) are much higher than those of the comparative example.

  The three-dimensional warp knitted fabric of the present invention can be suitably used for apparel such as brassiere cups utilizing properties such as thickness retention, shape retention, stretchability, and compression recovery.

It is a block diagram which shows the example of an apparatus which knits the three-dimensional structure warp knitted fabric of this invention. It is the schematic which shows the outline | summary of shaping | molding. 1 is a structural diagram of a three-dimensional structure warp knitted fabric of Example 1. FIG. 3 is a structural diagram of a three-dimensional structure warp knitted fabric of Example 2. FIG. 3 is a structural diagram of a three-dimensional warp knitted fabric of Example 3. FIG. 6 is a structural diagram of a three-dimensional structure warp knitted fabric of Example 4. FIG. 6 is a structural diagram of a three-dimensional structure warp knitted fabric of Example 5. FIG. 3 is a structural diagram of a three-dimensional structure warp knitted fabric of Comparative Example 1. FIG. 5 is a structure diagram of a three-dimensional warp knitted fabric of Comparative Example 2. FIG. 5 is a structure diagram of a three-dimensional structure warp knitted fabric of Comparative Example 3. FIG. 6 is a structural diagram of a three-dimensional warp knitted fabric of Comparative Example 4. FIG.

Explanation of symbols

A1 ... Knitting yarn A2 ... Knitting yarn A3 ... Knitting yarn (connecting yarn)
A4 ... Knitting yarn (connecting yarn)
A5 ... Knitting yarn A6 ... Knitting yarn L1 ... 筬 L2 ... 筬 L3 ... 筬 L4 ... 筬 L5 ... 筬 L6 ... 筬 G1 ... Guide G2 ...・ Guide G3 ... Guide G4 ... Guide G5 ... Guide G6 ... Guide 7 ... Needle hook on the front side 8 ... Needle hook on the back side 9 ... Knitting needle on the front side 10 ... Back side 11 ... Beam 12 ... Beam 13 ... Beam 14 ... Beam 15 ... Beam 16 ... Beam 17 ... Ground structure on the front side 18 ... Ground structure on the back side 19. ..Mold 20 ... Solid warp knitted fabric 21 ... Mold

Claims (4)

In a three-dimensional warp knitted fabric in which the front and back ground structures are connected with connecting yarns and elastic yarn is used for the ground texture, the connecting yarns are composed of yarns having a single yarn fineness of 3 to 11 dtex and a fineness of 33 to 110 dtex. Using filament yarn, the number of connected yarns per loop is 3 to 6 multifilament yarns, the number of connected yarns is 5500 to 24000 yarns / inch ² , and the total fineness of the connected yarns is 181000 to 2640000 dtex. / Inch ² is a three-dimensional structure in which the fabric elongation at a load of 22.06 N is vertical and horizontal 30 to 150%, and the fabric hysteresis when the elongation rate is 30% is vertical and horizontal 20 to 60%. Warp knitted fabric. Conformation warp knitted fabric according to claim 1, number of loops of the ground structure is characterized by a 2,000 to 4,000 loops / inch ^2. The three-dimensional solid according to claim 1 or 2, wherein the elastic yarn is a polyurethane elastic yarn having a fineness of 44 to 310 dtex, and the proportion of the elastic yarn in the three-dimensional warp knitted fabric is 6 to 30%. Structural warp knitted fabric. Conformation warp knitted fabric according to any one of claims 1 to 3 fabric thickness conformation warp knitted fabric is 3 to 10 mm.

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