WO2020067340A1 - Tissu tricoté doté d'une structure en deux couches et article vestimentaire - Google Patents

Tissu tricoté doté d'une structure en deux couches et article vestimentaire Download PDF

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WO2020067340A1
WO2020067340A1 PCT/JP2019/037967 JP2019037967W WO2020067340A1 WO 2020067340 A1 WO2020067340 A1 WO 2020067340A1 JP 2019037967 W JP2019037967 W JP 2019037967W WO 2020067340 A1 WO2020067340 A1 WO 2020067340A1
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layer
yarn
knitted fabric
double
cross
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PCT/JP2019/037967
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English (en)
Japanese (ja)
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木津　祐晴
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セーレン株式会社
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Priority to JP2020549382A priority Critical patent/JP7374113B2/ja
Priority to CN201980051109.9A priority patent/CN112513355B/zh
Publication of WO2020067340A1 publication Critical patent/WO2020067340A1/fr

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes

Definitions

  • the present invention relates to a double-layer knitted fabric having a first layer and a second layer, and to clothing using the same.
  • knitted fabrics used for sportswear and innerwear include knitted fabrics made of natural fibers such as cotton, knitted fabrics made of synthetic fibers such as polyester and polyamide, and mixed knitted and cross-knitted fabrics of natural fibers and synthetic fibers. There is.
  • sportswear and innerwear are worn so as to come into contact with the skin and often cause sweating when worn. Is required to quickly move and diffuse to the outer surface of the dough and dissipate into the outside air, that is, to have good so-called quick-drying properties.
  • knitted fabrics made of natural fibers such as cotton and wool, absorb sweat well, but because the absorbed sweat is retained and not easily dissipated, it is inferior in continuous water absorption and quick-drying properties, and has increased weight and cold feeling due to water retention. For example, the wearing comfort may be impaired, such as the occurrence of wear.
  • knitted fabrics made of synthetic fibers such as polyester and nylon are excellent in wash and wear, but on the other hand, the absorbed sweat is difficult to move and diffuse, so the feeling of stickiness and stuffiness due to sweat wetting is reduced. There was a problem of inviting.
  • Patent Document 1 discloses that a cloth made of synthetic fiber is provided with water transfer / diffusion property, and one side of the cloth is made of ultra-fine fibers of 0.7 denier or less, and the other side of the cloth is made of 1 denier or less.
  • a water-absorbing fabric composed of fibers having denier or more and having a fineness four times or more that of the ultrafine fibers.
  • one surface is composed of ultra-fine fibers such as 0.05, 0.07, and 0.1 denier, and the other surface is a very large single unit having a size of 33 to 44 times that of the ultrafine fiber.
  • a woven fabric, a nonwoven fabric, a knitted fabric, and the like constituted by using a yarn with a fineness of yarn are described.
  • Patent Document 2 proposes a knitted fabric having a front surface made of a hydrophilic fiber yarn such as cotton and a back surface made of the hydrophilic fiber yarn and a hydrophobic synthetic yarn.
  • Patent Document 3 discloses a knitted woven fabric composed of a plurality of non-hygroscopic fiber yarns having different single yarn finenesses, wherein one side has a single yarn fineness ranging from 1.0 to 2.5 denier.
  • a water-permeable knitted woven fabric has been proposed in which the other surface is formed of a yarn having a single yarn fineness 1.5 times or more larger than the single yarn fineness.
  • the inner layer on the skin side absorbs sweat on the skin quickly and transfers to the outer layer, and the skin side layer itself does not retain water as much as possible, It is important to reduce stickiness, stuffiness, wetness and coldness, and not to keep it for a long time.
  • the outer layer it is important for the sweat that migrated from the inner layer to be once retained in water, and at the same time, quickly diffuse to the surface and evaporate, in order to quickly recover comfort.
  • Patent Document 1 is intended to obtain water absorption and water retention, and although the initial water absorption is good, the ultrafine fiber group retains water after water absorption, resulting in a problem of continuous water absorption and quick drying.
  • it was not suitable for sportswear and innerwear in which the performance described above is ideal.
  • the knitted fabric of Patent Document 2 can be said to have a relatively good initial water absorbency because the back surface contains hydrophilic fiber yarns, but is inferior in water permeability from the back surface to the surface, continuous water absorbency, quick drying, and the like. Was.
  • the water-permeable knitted fabric of Patent Document 3 is said to have a sweating treatment function and quick-drying / wash-and-wear properties.
  • the present invention has been made in view of the above problems, and has a double-layer knitted fabric which can be suitably used for clothing worn in contact with the skin such as sportswear and innerwear, and clothing using the same.
  • the purpose is to provide.
  • the characteristic configuration of the two-layer knitted fabric according to the present invention for solving the above-mentioned problems is as follows.
  • a two-layer structure knit having a first layer and a second layer The first layer is knitted by a first yarn having a cross-sectional porosity of 30 to 250%, The second layer is knitted by a second yarn having a cross-sectional porosity of 150 to 450%,
  • the sectional void ratio of the second yarn is 1.3 to 7.0 times the sectional void ratio of the first yarn.
  • the second layer has a cross-sectional porosity of 1.3 to 7.0 times the cross-sectional porosity of the first yarn, whereby moisture is absorbed in the second layer.
  • moisture quickly moves from the second layer to the first layer having a small cross-sectional porosity, diffuses, and is diffused. Therefore, the absorption amount does not easily reach saturation, and excellent continuous water absorption and drying speed can be obtained.
  • the sweat on the skin is quickly sucked up by the second layer and transferred to the first layer, and the first layer diffuses the transferred sweat to the surface, and the Can be dried in time.
  • the sweat is hardly retained in the second layer, so that the user does not feel cold and can quickly recover the comfort.
  • the first yarn preferably contains a hydrophilic fiber.
  • the first yarn contains the hydrophilic fiber
  • the water absorbed by the second layer can be quickly sucked into the first layer. Therefore, a good dry feeling can be obtained in the clothing using the two-layer knitted fabric of the present configuration.
  • the second yarn includes a hydrophobic fiber.
  • the knitted fabric having the two-layer structure of the present configuration since the second yarn contains the hydrophobic fiber, the moisture absorbed by the second layer can be more quickly absorbed into the first layer. Therefore, in a garment using the double-layered knitted fabric of this configuration, the dry feeling can be further improved.
  • the first yarn is contained in an amount of 20 to 150 g / m 2 per unit area.
  • the first yarn is contained in an amount of 20 to 150 g / m 2 per unit area, so that the water-retaining capacity of the double-layered knitted fabric does not become excessive, and the appropriately absorbed moisture Can be uniformly diffused.
  • the characteristic configuration of the clothing according to the present invention for solving the above-mentioned problems is as follows.
  • the second layer is on the skin side.
  • the double layer knitted fabric having the first layer and the second layer of the present invention is used, and since the second layer is on the skin side, the sweat on the skin is quickly absorbed by the second layer. It is sucked up and transferred to the first layer, and the first layer diffuses the transferred sweat to the surface and can be dried in a short time. In addition, even when a large amount of sweat is sweated, the sweat is hardly retained in the second layer, so that the user does not feel cold and can quickly recover the comfort.
  • the two-layer knitted fabric of the present invention has a first layer knitted by a first yarn and a second layer knitted by a second yarn.
  • the knit structure of the two-layer structure knitted fabric of the present invention is not particularly limited as long as the knit structure has a two-layer structure.
  • circular knitted fabrics such as punched Rome, Milan rib, tack rib, back fir, single picket, double picket, and reversible sheeting, single warp knitted fabric such as half, back half, Queen's cord, and shark skin, and double raschel and double Double warp knitted fabric such as tricot is exemplified.
  • excellent drying properties can be obtained.
  • the knitting density of the two-layer knitted fabric of the present invention is preferably in the range of 30 to 100 courses / 2.54 cm and 20 to 80 wales / 2.54 cm in finishing density.
  • the knitting density is in the above range, a knitted material having excellent drying properties, water absorbency, texture, and the like can be obtained.
  • the basis weight of the double-layered knitted fabric of the present invention is preferably 50 to 270 g / m 2 . If the basis weight is less than 50 g / m 2 , the strength of the double-layer knitted fabric may be inferior. If the basis weight is greater than 270 g / m 2 , the texture of the double-layer knitted fabric may be impaired.
  • the yarn which is an aggregate of single yarns has a structure similar to that of a capillary in which the distance between the single yarns constituting the yarn is water-absorbing, the distance between the single yarns constituting the yarn is small, and As the cross-sectional porosity is smaller, the yarn has a water suction effect.
  • the yarn having a smaller cross-sectional porosity than the second yarn knitting the second layer as the first yarn knitting the first layer, on the skin surface side Moisture such as sweat absorbed by the arranged second layer can be diffused to the first layer and diffused.
  • the cross-sectional porosity of the yarn is defined as the apparent cross-sectional area of the entire yarn as S Y (m 2 ), the total fineness of the yarn as F Y (dtex), and the specific gravity of the fiber material constituting the yarn as g F And the following equation (1):
  • Cross-sectional porosity (%) ⁇ (S Y ⁇ 10000 ⁇ g F ) ⁇ F Y ⁇ / F Y ⁇ 100 (1)
  • the two-layer structure knitted material is embedded in a resin, cut in the warp or weft direction, and the cross section is photographed with a scanning electron microscope. Using the average value of the apparent cross-sectional area S Y (m 2 ) of the entire yarn measured at the location, the cross-sectional porosity is calculated by the above equation (1).
  • a yarn having a cross-sectional porosity of 30 to 250% is used as the first yarn.
  • the cross-sectional porosity of the first yarn is 30 to 250%, the mobility of water in the first layer is improved, and the diffusibility of water in the two-layer knitted fabric is improved. Further, the texture of the double-layered knitted fabric becomes flexible.
  • the cross-sectional porosity of the first yarn is less than 30%, the density of the yarn itself is high, and the texture of the knitted material may be hardened, and the interval between the yarns may be increased, so that the stitch may be reduced. It may become large and the ground structure may be transparent.
  • the cross-sectional porosity of the first yarn is greater than 250%, the mobility of moisture from the second layer on the skin surface side to the first layer becomes poor, and the diffusibility of moisture in the two-layer knitted fabric decreases. There is a possibility that the quick-drying property is reduced.
  • a yarn having a cross-sectional porosity of 150 to 450% is used as the second yarn. If the cross-sectional porosity of the second yarn is 150 to 450%, moisture such as sweat on the skin can be quickly absorbed by the second layer. In addition, it is possible to prevent the water retention in the second layer from becoming excessive.
  • the cross-sectional porosity of the second yarn is less than 150%, the difference in cross-sectional porosity between the first yarn and the second yarn becomes small, so that the difference in the liquid rise height due to the capillary phenomenon is small. Moisture transfer from the two layers to the first layer is unlikely to occur, and there is a possibility that the diffusibility of the water is reduced and the quick-drying property is reduced. In addition, the touch may be impaired. If the cross-sectional porosity of the second yarn is greater than 450%, physical properties such as pilling resistance and snag resistance of the double-layered knitted fabric may be reduced.
  • the cross-sectional porosity of the second yarn is in a range of 1.3 to 7.0 times the cross-sectional porosity of the first yarn.
  • the capillary phenomenon effectively acts, and the rapid movement and diffusion of moisture from the second layer to the first layer are performed. Therefore, in the knitted fabric of the two-layer structure of the present invention, moisture is suppressed from being retained in each layer, and even if a large amount of sweat is permeated, the amount of absorbed sweat is less likely to reach saturation, the continuous water absorption is excellent, and the drying speed is improved. Thereby, the discomfort that the two-layer knitted fabric becomes heavy with sweat or sticky to the skin can be suppressed.
  • the form of the first yarn a drawn yarn, a crimped yarn, a spun yarn or the like can be used.
  • latently crimped yarns such as false twisted yarns and side-by-side yarns are preferably used.
  • the total fineness of the first yarn is preferably 30 to 167 dtex.
  • the single yarn fineness of the first yarn is preferably from 0.06 to 2.3 dtex, and more preferably from 0.3 to 1.5 dtex.
  • the single yarn fineness of the first yarn is preferably 50 to 120 count.
  • the strength and flexibility of the double-layered knitted fabric are good. If the total fineness of the first yarn and the single yarn fineness are out of the above ranges, the strength of the double-layered knitted fabric may be insufficient, or the double-layered knitted fabric may be heavy.
  • the fiber material of the first yarn is not particularly limited, for example, natural fibers such as cotton, wool, and silk, regenerated fibers such as rayon and acetate, and polyester, polyamide, polyacrylonitrile, and Synthetic fibers such as polypropylene can be used.
  • the first yarn include a hydrophilic fiber.
  • the first yarn contains the hydrophilic fiber, the water absorbed by the second layer can be quickly sucked into the first layer knitted by the first yarn.
  • the hydrophilic fiber is intended to be a fiber having good wettability with respect to moisture, and is generally a natural fiber such as cotton or silk subjected to scouring treatment, a semi-synthetic fiber such as rayon, and a synthetic fiber. Hydrophilic processing may be mentioned. It is preferable that the knitted fabric constituted by using these hydrophilic fibers alone has a performance of 2 seconds or less when measured according to "JIS ⁇ L1907 ⁇ water absorption test method ⁇ drop method". Various combinations of the above hydrophilic fibers can be used for the first yarn.
  • the hydrophilic processing of the synthetic fiber examples include a conventionally known method such as a sweat absorption processing in a bath, and the method is not particularly limited as long as it satisfies the above water absorbing performance.
  • the first yarn may be a yarn composed of only hydrophilic fibers, but a mixed yarn, a plied yarn, and a hydrophilic fiber, and a fiber having a performance exceeding 2 seconds by the dropping method.
  • Composite yarns such as interlaced mixed yarns and covering yarns can also be used.
  • the water absorption performance is preferably 2 seconds or less, more preferably 1 second or less, by the above-mentioned dropping method.
  • the first yarn preferably contains 20 to 150 g / m 2 , more preferably 30 to 120 g / m 2 , per unit area of the two-layer knitted fabric. If the first yarn is contained in an amount of 20 to 150 g / m 2 per unit area of the two-layer structure knit, the water retention of the two-layer structure knit does not become excessive, and the appropriately absorbed moisture is diffused uniformly. be able to.
  • the first yarn per unit area of the two-layer structure knitted is less than 20 g / m 2, water there is a risk that the drying rate is slow by not be uniformly diffused, larger than 150 g / m 2, water retention There is a possibility that the drying speed becomes slow due to too high a property.
  • the first yarn When the first yarn contains a hydrophilic fiber, the first yarn preferably occupies 20 to 80% of the weight of the double-layer knitted fabric. Since the first yarn containing hydrophilic fibers occupies 20 to 80% of the weight of the two-layer knitted fabric, moisture such as sweat absorbed by the second layer can be quickly diffused and diffused over a wide range. .
  • the second yarn As the form of the second yarn, a drawn yarn, a crimped yarn, a spun yarn, or the like can be used.
  • latently crimped yarns such as false twisted yarns and side-by-side yarns are preferably used, but in the two-layer knitted fabric of the present invention, the second yarn may be a yarn having a different form from the first yarn. More preferred.
  • the total fineness of the second yarn is preferably 30 to 222 dtex.
  • a filament yarn is preferably used for the second yarn, and the single yarn fineness is preferably 1 to 6 dtex, more preferably 1.5 to 3 dtex.
  • the feel of the second layer knitted by the second yarn is not impaired.
  • moisture is efficiently transferred and diffused to the first layer consisting of the first yarn by surface tension without impairing the stiffness and hand feeling of the two-layer knitted fabric, thereby improving the texture of the two-layer knitted fabric.
  • the feel of the second layer may be impaired, and the stiffness, feeling, etc. of the two-layer knitted fabric may be impaired.
  • the fiber material of the second yarn is not particularly limited, for example, natural fibers such as cotton, wool, and silk, regenerated fibers such as rayon and acetate, and polyester, polyamide, polyacrylonitrile, and Synthetic fibers such as polypropylene can be used.
  • the second yarn preferably contains a hydrophobic fiber. Since the second yarn contains the hydrophobic fiber, in the clothing using the double-layer knitted fabric of the present invention, a good dry feeling can be obtained with the second layer disposed on the skin surface side.
  • the hydrophobic fiber is intended to be a fiber having poor wettability to moisture, and unprocessed synthetic fiber can be preferably used.
  • fibers for example, polyethylene terephthalate, polymethylene terephthalate, polybutylene terephthalate, polyoxyethoxy benzoate, polyethylene naphthalate, polyesters such as cyclohexane dimethylene terephthalate, and isophthalic acid, sulfoisophthalic acid component, propylene Polyester fibers such as copolymerized polyester obtained by copolymerizing a third glycol component such as glycol, butylene glycol, cyclohexanedimethanol, and diethylene glycol; polyamide fibers such as nylon 6, nylon 66, and aromatic nylon; polyethylene, and polypropylene.
  • polyolefin fibers acrylic fibers, and polycaprolactone, polybutylene succinate, and polymilk
  • biodegradable synthetic fibers made of aliphatic polyesters compounds and the like.
  • the knitted fabric constituted by using these hydrophobic fibers alone has a performance of 5 seconds or more when measured in accordance with the above-mentioned "JIS L1907 ⁇ water absorption test method ⁇ drop method".
  • cotton, silk, etc. which are listed above as hydrophilic fibers, or semi-synthetic fibers such as rayon, which have been subjected to a water-repellent treatment.
  • the water-repellent treatment include those treated with a general water-repellent agent containing fluorine, silicon, olefin, and the like, but are not particularly limited as long as the water-absorbing performance is satisfied.
  • the second yarn is preferably contained in an amount of 30 to 180 g / m 2 per unit area of the double-layer structure knit. If the second yarn is contained in the above range, the second layer can quickly absorb moisture such as sweat. If the second yarn per unit area of the two-layer knitted fabric is less than 30 g / m 2 , the two-layer knitted fabric may become sticky due to a decrease in the rate of water absorption in the second layer, and 180 g / m 2. If it is larger, the double-layer knitted fabric may be heavy.
  • the two-layer knitted fabric of the present invention can be suitably used as a material for various types of clothing.
  • a second layer using a second yarn having a large cross-sectional porosity of the yarn is arranged on the skin side (back side), and the cross-sectional porosity of the yarn on the outside (front side).
  • the clothing using the double-layer knitted fabric of the present invention is supposed to use the second layer arranged on the skin side, so that the faster the second layer absorbs water, the more dry feeling. Excellent clothing can be obtained. Therefore, the two-layer structure knitted fabric of the present invention preferably has a water absorption time of 10 seconds or less as an index of the water absorption rate of the second layer, measured in accordance with the dropping method of JIS L1097. The water absorption time is measured according to the following procedure.
  • test pieces of 20 cm ⁇ 20 cm are sampled from the double-layered knitted fabric, and each piece is attached to a metal ring having a diameter of about 15 cm so that no extra tension is applied.
  • it is adjusted so that the height from the surface of the second layer of the test piece to the tip of the buret is 10 mm, and about 0.04 ml of distilled water at 20 ° C. ⁇ 2 ° C. is dropped with the buret.
  • the time until the water drop dropped on the test piece was absorbed by the test piece was measured, and the test for five sheets was performed. An average value is calculated for the pieces. If the water absorption time is 10 seconds or less, the garment using the two-layer knitted fabric is evaluated to be able to quickly absorb moisture such as sweat. When the water absorption time exceeds 10 seconds, the garment using the two-layer knitted fabric is evaluated as sticky.
  • the two-layer structure knitted fabric of the present invention preferably has a water absorption diffusion area of 23 cm 2 or more as an index of water diffusivity in the first layer.
  • the water absorption diffusion area is measured by the following procedure. First, 0.1 ml of a 2.5% aqueous solution of a dye (Kayacation Red P-4BN Liquid 25, manufactured by Nippon Kayaku Co., Ltd.) was dropped on the surface of the second layer. The vertical width and the horizontal width of the trace where the dye spreads are measured, and the water absorption diffusion area is calculated by the product of the vertical width and the horizontal width.
  • the water absorption diffusion area is 23 cm 2 or more, the moisture absorbed in the second layer is rapidly diffused, and the drying property is evaluated as being good.
  • the water absorption diffusion area is less than 23 cm 2 , the diffusibility of water is insufficient, and it is evaluated that the absorption of water in the second layer is not sustained.
  • the two-layer structure knitted fabric of the present invention preferably has a drying time of 23 minutes or less as an index of water-absorbing quick-drying property.
  • the drying time is measured according to the following procedure. First, at a temperature of 20 ° C. and a 65% RH environment, the humidity was adjusted for 2 hours or more. A 10 cm ⁇ 10 cm test piece whose weight had been measured in advance was allowed to stand on a metal ring having a diameter of 9 cm.
  • drying time is 23 minutes or less, the absorbed moisture can be quickly dried, and thus the clothing using this two-layer knitted fabric is evaluated as capable of continuously absorbing sweat. .
  • the drying time exceeds 23 minutes or less, the water-absorbing quick-drying property becomes insufficient, and the clothing using the two-layer knitted fabric is evaluated as not capable of continuously absorbing sweat.
  • Clothing using the double-structured knitted fabric of the present invention is mainly intended to improve the water absorption and quick-drying of sweat when a person sweats.
  • the clothing is constituted by using a double-structured knitted fabric in which the front and back are reversed (that is, a double-structured knitted fabric having the first layer on the skin side and the second layer on the front side). It is also possible.
  • the clothing with the reversed front and back is moderately moisturized on the surface of the skin by the first layer of the double-layer knitted fabric, so that, for example, it is possible to prevent excessive drying of the skin in fine weather in winter and the like. .
  • Examples 1 to 5 A two-layer knitted fabric of the present invention (Examples 1 to 5) was prepared, and various measurements and evaluations were performed. Further, for comparison, a two-layer structure knitted product (Comparative Examples 1 and 2) which was out of the range of the present invention was prepared and subjected to the same measurement and evaluation.
  • the measurement and evaluation items were water absorption time, water absorption diffusion area, water absorption quick drying property, and continuous water absorption. Each item will be described below.
  • drying time The drying time was measured according to the procedure described in "Properties of double-layer knitted fabric".
  • Continuous water absorption Based on the water absorption diffusion area and the drying time, continuous water absorption was evaluated according to the following criteria. :: The water absorption diffusion area is 23 cm 2 or more, and the drying time is 23 minutes or less. X: The water absorption diffusion area is less than 23 cm 2 , or the drying time exceeds 23 minutes.
  • Example 1 Using 84dtex / 144f polyester false twisted yarn (voidage 230%) having hydrophilicity as the first yarn, and using 84dtex / 36f polyester false twisted yarn (voidage 300%) as the second yarn. , 28-gauge, 33-inch double circular knitting machine, knitted a double-layered honeycomb knitted fabric with the structure shown in FIG. I got a knit.
  • F1, F3, F5, and F7 show the structure of the second yarn on the dial side in the upper part and the lower part on the cylinder side
  • F2, F4, F6, and F8 show the upper part on the dial side and the lower part. Shows the structure of the first yarn on the cylinder side.
  • the porosity ratio (b / a) which is the ratio of the cross-sectional porosity (b) of the second yarn to the cross-sectional porosity (a) of the first yarn, is 1.3. there were.
  • the finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 61 g / m 2 per unit area, and the ratio of the first yarn to the weight of the double-layer knitted fabric was 46.9%.
  • the basis weight of the double-layer knitted fabric was 130 g / m 2 .
  • Example 2 The two-layer knitted fabric of Example 2 was manufactured using the same material and procedure as in Example 1, except that the first yarn was changed to a polyester dessertlan yarn having a hydrophilicity of 90 dtex / 72f (porosity: 175%). Obtained.
  • the porosity ratio between the first yarn and the second yarn was 1.7.
  • the finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 51 g / m 2 per unit area, and the ratio of the first yarn to the weight of the double-layer knitted fabric was 41.5%.
  • the basis weight of the double-layer knitted fabric was 123 g / m 2 .
  • Example 3 A double-layer knitted fabric of Example 3 was obtained using the same material and procedure as in Example 1 except that the first yarn was changed to 80th cotton compact spin yarn (porosity: 85%).
  • the porosity ratio between the first yarn and the second yarn was 3.5.
  • the finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 69 g / m 2 per unit area, and the ratio of the first yarn to the weight of the double-layer knitted fabric was 39.8%.
  • the basis weight of the double-layer knitted fabric was 144 g / m 2 .
  • Example 4 The first yarn was changed to a hydrophilic 84dtex / 72f polyester yarn (porosity: 75%), the second yarn was changed to 84dtex / 72f polyester yarn (porosity: 240%), and the others were implemented. Using the same material and procedure as in Example 1, a two-layer knitted fabric of Example 4 was obtained. In the two-layer structure knitted fabric of Example 4, the porosity ratio between the first yarn and the second yarn was 3.2. The finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 58 g / m 2 per unit area, and the ratio of the first yarn to the weight of the two-layer knitted fabric was 45.7%.
  • the basis weight of the double-layer knitted fabric was 127 g / m 2 .
  • Example 5 The first yarn is changed to a polyester spun yarn having a hydrophilicity of 60th (void ratio: 60%), and the second yarn is changed to 84dtex / 72f polyester modified cross-section false twisted yarn (porosity: 360%). Other than that, the same material and procedure as in Example 1 were used to obtain the double-layer knitted fabric of Example 5. In the double-layer knitted fabric of Example 5, the porosity ratio between the first yarn and the second yarn was 6.0. The finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 69 g / m 2 per unit area, and the ratio of the first yarn to the weight of the double-layered knitted fabric was 47.9%.
  • the basis weight of the double-layer knitted fabric was 144 g / m 2 .
  • the first yarn was changed to a 84dtex / 36f polyester false twisted yarn having a hydrophilic property (porosity 300%), and the other materials were the same as those in Example 1, and the two-layer structure of Comparative Example 1 was used. I got a knit.
  • the porosity ratio between the first yarn and the second yarn was 1.0.
  • the finishing density was 55 courses and 33 wales for both the first and second layers.
  • the first yarn was contained at 65 g / m 2 per unit area, and the ratio of the first yarn to the weight of the double-layer knitted fabric was 47.1%.
  • the basis weight of the double-layer knitted fabric was 138 g / m 2 .
  • the double-layered knitted fabrics of Examples 1 to 5 all had a water absorption / diffusion area of 23 cm 2 or more and a drying time of 23 minutes or less, and were confirmed to have excellent continuous water absorption.
  • the larger the porosity ratio the larger the water absorption diffusion area and the shorter the drying time. From this, the excellent continuous water absorption of the double-layered knitted fabrics of Examples 1 to 5 is based on the fact that the porosity ratio is in the range of 1.3 to 7.0. It is thought that this was obtained by the rapid movement and diffusion to the further.
  • the two-layer knitted fabrics of Comparative Examples 1 and 2 having a porosity ratio of 1.0 have water absorption diffusion areas of less than 23 cm 2 and drying times of more than 23 minutes, and are inferior in continuous water absorption.
  • the double-layer knitted fabric of the present invention can be used for clothing worn in contact with the skin, such as sportswear and innerwear.

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Abstract

La présente invention concerne un tissu tricoté doté d'une structure en deux couches qui peut être utilisé de manière appropriée dans un article vestimentaire porté de façon à être en contact avec la peau, tel qu'un vêtement de sport ou un sous-vêtement, etc. Un tissu tricoté doté d'une structure en deux couches comprend une première couche et une seconde couche, la première couche étant tricotée avec un premier fil dans lequel la porosité en coupe transversale est de 30 à 250 %, la seconde couche étant tricotée avec un second fil dans lequel la porosité en coupe transversale est de 150 à 450 %, la porosité en coupe transversale du second fil étant 1,3 à 7,0 fois supérieure à la porosité en coupe transversale du premier fil, le premier fil comprenant une fibre hydrophile, le second fil comprenant une fibre hydrophobe, et le premier fil étant présent en une quantité de 20 à 150 g/m2 par unité de surface du tissu tricoté doté d'une structure en deux couches.
PCT/JP2019/037967 2018-09-27 2019-09-26 Tissu tricoté doté d'une structure en deux couches et article vestimentaire WO2020067340A1 (fr)

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JP2004036012A (ja) * 2002-07-01 2004-02-05 Toray Ind Inc 吸水性編地
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