JP4390514B2 - Multilayer structure knitted fabric - Google Patents

Description

  The present invention relates to a multi-layered knitted fabric, and more specifically, a multi-layered structure which is excellent in sweat or urine water-treating properties while maintaining quick-drying, mechanical strength and color development and can be suitably used for clothing and materials. Regarding knitting fabric.

  Wear made of knitted fabric for clothing used for sports, skin wear, uniforms, outerwear, etc., or lining made of knitted fabric for materials, hat lining, diaper cover, etc. are generally worn so as to touch the skin. Therefore, it has a dryness that allows sweat to sweat from the skin during exercise or work in summer, or urine in a nursing care site to be continuously absorbed over a long period of time, and to quickly evaporate into the outside air. It is considered that it is ideal from the viewpoint of wearing comfort and ease of handling that it has excellent wash and wear properties.

  However, the currently proposed knitted fabrics are able to maintain all of the water absorption / water permeability, transpiration / quick drying, reduction of skin stickiness, and wash and wear properties that satisfy these ideals at a satisfactory level. The reality is that there is nothing.

  For example, 100% natural fibers such as cotton and wool, or knitted or blended products of these natural fibers and synthetic fibers are excellent in water absorption and water retention and absorb sweat or urine well. Sweat and urine that has been sucked up cannot be easily evaporated, so it is inferior in transpiration and quick-drying, and is difficult to dehydrate after washing. There is a disadvantage that it is inferior in wear. In addition, it is inferior in mechanical strength, chemical resistance and color development as compared with synthetic fiber use.

  On the other hand, 100% synthetic fiber is excellent in wash and wear properties, mechanical strength, chemical resistance, and color development, but has a slow water absorption rate when in contact with water, inferior water permeability, sweat, or urine Insufficient sweat perspiration and movement of the skin caused problems such as unpleasantness and stuffiness due to sweat or urine wetness.

  Although Patent Document 1 has been proposed as a sweat-treatable knitted fabric excellent in water absorption and water permeability using non-hygroscopic fibers such as synthetic fibers, there is a problem that it cannot sufficiently cope with heavy sweating during intense exercise in summer.

Further, Patent Document 2 is proposed in which a high part having water repellency and a low part having water absorption are integrally formed on one surface of a fabric, and is intended for use in a waist part of pants or the like. However, they are not fully satisfied with the ability to treat sweat.
Japanese Utility Model Publication No. 61-27990 JP 2000-256940 A

  An object of the present invention is to solve the above-described conventional problems, and while containing synthetic fiber multifilament, the feeling of stickiness is reduced at the time of frequent sweating or even a large amount of urine, and the sweat or urine absorbed in the back layer on the skin side An object of the present invention is to provide a multi-layered knitted fabric capable of exhibiting excellent performance in water absorption / water permeability for moving the surface to the surface layer side, transpiration / fast drying on the surface layer, and wash and wear properties.

The present invention has the following configuration in order to solve the above problems. That consists knitted fabric comprising at least two layers between the surface layer and the backing layer, yarns back layer of the knitted fabric comprises 30-90% by weight by mixed knitting a synthetic fiber multifilament false twisted yarn that is water repellent The surface layer is constituted by a water-absorbed yarn, and the water absorption ratio of the surface layer to the back layer is 6 times or more and the water absorption diffusion area ratio is 4 times or more. It is a multi-layered knitted fabric.

Further, consisting knitted fabric comprising at least two layers between the surface layer and the backing layer, yarns back layer of the knitted fabric comprises 30-90% by weight by mixed knitting a synthetic fiber multifilament false twisted yarn that is water repellent The surface layer is composed of a yarn containing at least 30% by weight of hygroscopic fibers, and the water absorption ratio of the surface layer to the back surface layer is 6 times or more and the water absorption diffusion area ratio is 4 times or more. This is a multi-layer structure knitted fabric.

  According to the multi-layered knitted fabric of the present invention, when used for sportswear, diaper covers, etc., it quickly absorbs, permeates, diffuses and diffuses a lot of sweat and urine, resulting in good wearing comfort Moreover, since it is a synthetic fiber, the handleability, such as outstanding wash and wear property, can be obtained.

Hereinafter, the present invention will be described in detail together with preferred embodiments.
One of the preferred embodiments of the multilayer structure knitted fabric of the present invention is composed of a yarn containing 30 to 90% by weight of a synthetic fiber multifilament in which the back layer (skin surface) of the knitted fabric is water repellent, The surface layer is composed of a water-absorbed yarn, and the water absorption ratio of the knitted fabric surface layer to the back layer (skin surface) is 6 times or more and the water absorption diffusion area ratio is 4 times or more. .

  It is necessary that the back layer (skin surface) of the knitted fabric is composed of a yarn containing 30 to 90% by weight of a synthetic fiber multifilament having a water repellent finish, and the synthetic fiber multifilament having a water repellent finish is 30. If it is less than% by weight, the skin feels sticky and uncomfortable. The yarn is preferably 50% by weight or more, and more preferably 70% by weight or more. On the other hand, if it exceeds 90% by weight, a large amount of sweat or urine cannot be sufficiently absorbed on the skin side, causing the skin to feel sticky and uncomfortable.

  By setting the water absorption ratio of the knitted fabric surface layer to the back layer (skin surface) to be 6 times or more, more sweat and urine absorbed by the knitted fabric back layer (skin surface) are moved to the knitted fabric surface layer. , Can reduce the stickiness of the skin. If it is less than 6 times, sweat or urine on the back surface layer (skin surface) of the knitted fabric cannot be efficiently transferred to the knitted fabric surface layer, resulting in stickiness and feeling uncomfortable. The water retention ratio is preferably 8 times or more, and more preferably 10 times or more.

  Furthermore, by making the water absorption / diffusion area ratio of the knitted fabric surface layer to the back layer (skin surface) 4 times or more, the knitted fabric surface layer can promote the diffusion of sweat or urine to increase the drying rate. . If it is less than 4 times, the absorbed sweat and urine cannot be diffused efficiently, so drying will be delayed, and sweat and urine from the back layer of the knitted fabric (skin surface) cannot be moved, making the skin feel sticky. Will cause discomfort. The water absorption diffusion area ratio is preferably 6 times or more, and more preferably 8 times or more.

  The reduction of the skin surface is greatly affected by the water retention rate, and the quick-drying property is greatly influenced by the water absorption / diffusion area ratio. In addition, a water absorption retention ratio and a water absorption diffusion area ratio say the value measured with the measuring method mentioned later.

  Further, it is necessary that the surface layer of the knitted fabric is composed of water-treated yarns, while the synthetic fiber multifilament having a water-repellent processed back surface layer (skin surface) of the knitted fabric is 30 to 90 weights. It is necessary to make the composition of these front and back layers combined, and by specifying this structure and the above water absorption ratio and water absorption diffusion area ratio, water absorption, water permeability, diffusion and drying can be achieved. As a result, it is possible to continuously suck sweat or urine. The design of the water absorption / retention ratio and the water absorption / diffusion area ratio of the front and back layers can be performed by appropriately selecting the proportion of the water-repellent synthetic fiber multifilament that constitutes the back layer (skin surface). it can.

  The water-repellent processing method for the water-repellent processed synthetic fiber multifilament yarn used in the present invention is to perform water-repellent processing on the yarn, and after wrapping the yarn into a cheese shape and immersing it in the water-repellent agent A method of cross-linking reaction by dry curing, or a water-repellent finishing agent or twisting machine equipped with a water-repellent finishing agent, and a water-repellent finishing agent applied to the yarn on a repeater, and then dry-curing. A method of cross-linking reaction, or a water repellent finish is provided on the spinning / drawing machine at the raw yarn production stage, and the water repellent finish is applied to the yarn on the machine, followed by a cross-linking reaction by dry curing. There are no particular restrictions on the method used.

  As the water-repellent finishing agent used here, water-repellent agents usually used for synthetic fibers, such as silicone-based water-repellent agents and fluorine-based water-repellent agents, can be used. Among them, a fluorine-based water repellent containing a perfluoroalkyl group-containing acrylic copolymer is preferable. From the viewpoint of durability, an aminoplast resin, a polyfunctional blocked isocyanate group-containing urethane resin, ethylene carbonate, or the like may be added to the water repellent.

In addition, as a water absorption processing method for synthetic fiber multifilament yarn, the above-mentioned water-repellent synthetic fiber multifilament yarn and non-water-absorbed yarn not subjected to water absorption processing are knitted into a knitted fabric. After forming, water absorption processing in the bath at the same time as dyeing in the dyeing process, or after dyeing, immersing the knitted fabric in the bath containing the water absorption processing agent and then cross-linking with dry cure , or yarn A method in which a strip is rolled back into a cheese shape and dipped in a water-absorbing agent, followed by a cross-linking reaction by dry curing, or a water-absorbing agent on a yarn on a false twisting machine or twisting machine equipped with a water-absorbing agent applicator or a repeater After applying a cross-linking reaction by dry curing, or providing a water-absorbing agent on the spinning / drawing machine in the raw yarn production stage, and applying the water-absorbing agent to the yarn on the machine After, a method for cross-linking reaction by dry curing, and the like.

  As the water-absorbing agent used here, known ones are used. For example, when used for polyester fibers, a block formed by block copolymerization of polyethylene glycol, terephthalic acid and ethylene glycol, which are water-absorbing agents having affinity with polyester fibers. A copolymer is preferably used, but is not particularly limited.

  In addition, the yarn subjected to water absorption processing is not particularly limited, and synthetic fiber multifilament yarn, synthetic fiber spun yarn, blended yarn with other fibers, twisted yarn, blended yarn or the like is used. .

  The multilayer structure knitted fabric of the present invention is not particularly limited to a knitted structure and the like as long as it is composed of a multilayer structure composed of at least two layers of a front surface layer and a back surface layer (skin surface). For example, single jersey, double jersey, warp knitted fabric can be used in single tricot, double tricot, single raschel, double raschel, and flat knitted fabric can be used in single bed knit. Double bed knit can be used, and tights, sock knitted fabric, etc. can be used.

  Moreover, it is more preferable that the knitted fabric back surface layer (skin surface) has an uneven surface shape in which a large number of protrusions are dispersed, rather than a flat surface shape. When the back surface layer (skin surface) is made uneven in this way, when worn as a garment, the convex part makes point contact with the skin surface, so there is no stickiness even when sweating liquid sweat or urine, and The density of the surface layer of the knitted fabric becomes dense, but the density of the back surface layer (skin surface) becomes rough, so liquid sweat and urine are more likely to flow from the back surface layer (skin surface) to the surface layer due to capillary action. It can move efficiently and can further improve water absorption / permeability and diffusion / drying in the surface layer. The shape of the concavo-convex portion is not limited and can be widely applied, such as a vertical stripe shape, a horizontal border shape, a lattice shape, a twill shape, a herringbone shape, a dot shape, and a deer shape. In order to form the uneven height difference, there is a method using a knitting structure, a combination of a thick yarn and a thin yarn, or a combination of both, and the like is not particularly limited.

  The knitting conditions in the knitting may be according to the knitting conditions for normal yarn use, and it is not necessary to take special conditions.

  The multi-layer structure knitted fabric of the present invention, when stretchability is required depending on the application, various stretch elastic yarns typified by polyurethane elastic fibers, or polybutylene terephthalate fiber processed yarn that is a kind of polyester fiber Alternatively, it is preferable to knit a polytrimethylene terephthalate fiber processed yarn or a side-by-side type composite yarn of a polyethylene terephthalate polymer and a polytrimethylene terephthalate polymer. Furthermore, it is preferable to knit the polytomethylene terephthalate fiber for soft texture of the skin surface.

  Another preferred embodiment of the multilayer structure knitted fabric of the present invention is composed of a yarn containing 30 to 90% by weight of a synthetic fiber multifilament in which the back layer (skin surface) of the knitted fabric has a water repellent finish. The surface layer is composed of yarn containing at least 30% by weight of hygroscopic fibers, and the water absorption ratio of the knitted fabric surface layer to the back layer (skin surface) is 6 times or more, and the water absorption diffusion area ratio is 4 times. That is all. That is, the surface layer is composed of at least 30% by weight or more of hygroscopic fibers in place of the water-absorbed yarn.

  The hygroscopic fiber is preferably 50% by weight or more of the surface layer, and more preferably 70% by weight or more. If it is less than 30% by weight, the desired performance cannot be obtained, which is not preferable.

  The hygroscopic fiber is preferably a fiber having a moisture content of 3% or more in an environment of 20 ° C. × 65% RH, and is a natural fiber such as cotton, hemp, silk, wool, or the like, or these fibers and other fibers. Blended yarn, synthetic twisted yarn, regenerated fiber rayon fiber, spun yarn such as cupra, filament, or blended yarn of these fibers with other fibers, synthetic twisted yarn, mixed yarn, acetate which is semi-synthetic fiber, Spinned yarns such as triacetate fibers, filaments, or blended yarns of these fibers and other fibers, mixed twisted yarns, blended yarns, synthetic yarns such as nylon and vinylon, filaments, or these fibers and other fibers There are no particular limitations on these blended yarns, twisted yarns, and blended yarns.

  The back surface layer (skin surface) of the knitted fabric is composed of yarn containing 30 to 90% by weight of synthetic fiber multifilament processed with water repellent, and the knitted fabric surface layer is composed of yarn containing hygroscopic fibers. By configuring the combination of layers and defining the above water absorption ratio and water absorption diffusion area ratio, water absorption, water permeability, diffusion and drying can be performed efficiently, resulting in continuous sweat or urine It becomes possible to continue sucking. Regarding the design of the water-absorbing water retention ratio and the water-absorbing diffusion area ratio of the front and back layers, the ratio of the water-repellent synthetic fiber multifilament that constitutes the back layer (skin surface) and the hygroscopic fiber that constitutes the surface layer. This can be done by appropriately selecting the ratio.

  Further, in the two preferred embodiments of the multilayer structure knitted fabric of the present invention, the surface layer and the back surface layer (skin surface) of the knitted fabric are bound by a binding yarn, and the surface layer has a single yarn fineness of 0. It is composed of synthetic filament multifilament yarns in the range of 5 to 3.0 decitex, and the back layer (skin surface) is at least 1.5 times the single yarn fineness of the yarns constituting the surface layer. More preferably, it is composed of yarns having a single yarn fineness of less than 5.5 times.

  Using yarns with different single yarn fineness of the front and back layer constituent fibers of the knitted fabric, arrange the yarn with large single yarn fineness on the back side layer (skin surface) of the knitted fabric in contact with the skin. It is preferable to arrange a certain yarn on the surface layer of the knitted fabric. The knitted fabric back surface layer (skin surface) in contact with the skin has a single yarn fineness of 1.5 times or more that in the range of 0.5 to 3.0 decitex constituting the knitted fabric surface layer; By constituting with a thick yarn of less than 5 times (that is, not less than 0.75 dtex and less than 16.5 dtex), the gap between the fibers is large on the back layer side (skin surface) of the knitted fabric, while the other surface, The surface layer of the knitted fabric in contact with the outside air has a single fiber fineness of 0.5 to 3.0 dtex as described above, so that the interfiber gap is small.

  In this way, the fiber gap changes from large to small as it goes from the skin surface to the outside air surface, so that a moisture absorption gradient is created there, and moisture is absorbed and transferred from the skin surface to the outside air surface based on the principle of capillary action. Can be made.

  When the single yarn fineness constituting the surface layer of the knitted fabric is 0.5 dtex or more, it is excellent in anti-pilling property and anti-snag property. In the case of 3.0 dtex or less, the texture does not tend to be coarsely cured. Preferably, it is 1.0 dtex or more and 2.5 dtex or less, more preferably 1.0 dtex or more and 2.0 dtex or less.

  When the single yarn fineness of the yarn constituting the back surface layer (skin surface) is 1.5 times or more of the single yarn fineness of the yarn constituting the surface layer, the above-mentioned capillary phenomenon can be sufficiently exhibited. Therefore, it is preferable. Moreover, when it is less than 5.5 times, the texture of the skin becomes rough and does not deteriorate the feeling of touch. Preferably, it is 2.0 times or more and less than 4.0 times, more preferably 2.0 times or more and less than 3.0 times.

  Further, the total fineness of the filament yarn used in the multilayer structure knitted fabric of the present invention is not particularly limited, but when including the intended use and the thin knitted fabrics to the thick knitted fabrics, up to about 33 to 330 dtex. The range of can be preferably used. Further, as the yarn count of the spun yarn, a range from about 10 to about 120 in terms of cotton count can be preferably used.

  Furthermore, the multilayer structure knitted fabric of the present invention is composed of a yarn in which the surface layer of the knitted fabric includes at least 30% by weight of a synthetic fiber multifilament yarn having a plurality of concave grooves extending along the fiber longitudinal direction, The back layer (skin surface) of the knitted fabric is preferably composed of filament yarns that do not have a concave groove extending along the longitudinal direction of the fiber surface.

  This is because synthetic fiber multifilaments with different cross-sectional shapes are optimally arranged on the front and back layers of the yarn knitted fabric, thereby improving the water retention ratio and the water absorption diffusion area ratio, further reducing the feeling of stickiness on the skin surface. It is possible to sufficiently satisfy the wearing comfort. Among them, from the viewpoint of obtaining effective sweat or water treatment of urine, the knitted fabric surface layer is composed of multifilament yarns having a plurality of concave grooves extending along the fiber longitudinal direction on the fiber surface, The back surface layer (skin surface) of the knitted fabric is preferably composed of filament yarns that do not have concave grooves extending along the fiber longitudinal direction on the fiber surface. Here, the filament yarn having a concave groove extending along the fiber longitudinal direction on the fiber surface is specifically a deformed cross-sectional yarn, or a cross-sectional shape of the yarn, which is modeled by letters or symbols, etc. , F, H, K, M, N, T, W, X, Y, Z, +, * and the like are preferably used. Of these, shapes such as H-type, X-type, and Y-type are preferable. Since these cross-sectional yarns have a concave groove extending in the longitudinal direction of the fiber on the fiber surface, the single fiber itself has a capillary action. On the other hand, the cross-sectional shape of the yarn constituting the knitted fabric back surface layer (skin surface) is preferably a generally used round shape, triangular shape, pentagonal shape, octagonal shape or the like. Since these cross-sectional shapes do not have concave grooves extending in the longitudinal direction of the fibers on the fiber surface, the single fibers themselves do not have a capillary action.

  In this way, the knitted fabric surface layer is composed of multifilament yarns made of single fibers having capillary action, and the knitted fabric back layer (skin surface) is made of multifilament yarns made of single fibers having no capillary action. By doing so, sweat and urine can be more efficiently moved by capillary action as a multilayer structure from the knitted fabric back surface layer (skin surface) to the knitted fabric surface layer.

  Further, in order to sufficiently move moisture by capillary action, the filament yarn having a groove in the knitted fabric surface layer is preferably contained in an amount of 40% by weight or more, and more preferably 50% by weight or more. By setting it to 40% by weight or more, moisture can be sufficiently transferred by capillary action, and the skin surface can be further reduced from feeling sticky and uncomfortable.

In the multilayer structure knitted fabric of the present invention, it is preferable that the yarn of the synthetic fiber multifilament includes at least one of a polyester synthetic fiber and a polyamide synthetic fiber as a constituent element.
For example, as the polyester fiber, polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate fiber, or the like can be used. Further, as the polyamide fiber, nylon 6 or nylon 66 fiber is preferably used, but is not limited thereto.

These synthetic fiber filament yarns may be drawn yarns, crimped yarns, or mixed yarns with other filament yarns, but preferably crimped yarns or mixed yarns thereof are used. It is preferable to do. The crimped yarn, especially rather preferable that the false twisted yarn, thus, in the present invention, it is possible to synthetic filament yarn and textured yarn.

  The heat treatment, scouring, and dyeing of the raw fabric knitted fabric knitted from the multi-layer structure knitted fabric of the present invention may be performed in accordance with ordinary knitted fabric processing methods, and no special equipment is required. As ancillary processing at this dyeing stage, antifouling processing, antibacterial processing, deodorization processing, deodorization processing, flame retardant processing, water absorption processing, moisture absorption processing, mold prevention processing, ultraviolet ray absorption processing, weight reduction processing, and the like can be mentioned. Further, it is desirable that the post-processing is appropriately performed according to the required characteristics of the end use, such as calendering, embossing, wrinkling, raising, printing, and opal processing.

  Further, by raising the back layer of the knitted fabric, it is possible to obtain a better feel and heat retention, as well as better water and water permeability / diffusibility of sweat and urine.

  The multilayer structure knitted fabric of the present invention can be widely developed as follows. For example, athletic clothing, underwear, home wear, uniform wear, and outer wear for clothing. Lining materials, shoe materials, supporters, socks, gloves, hat lining materials, diaper covers, and sheets for materials.

  For athletic clothing, running shirts / pants, competition shirts / pants, golf shirts, tennis shirts, cycle shirts, outdoor shirts, polo shirts, T-shirts, baseball undershirts, training wear, sweatshirts / pants, etc. For underwear, slips, camisoles, petticoats, shorts, underpants, tights, T-shirts, round neck shirts, U-neck shirts, body suits, girdles, etc. for general ladies, T-shirts for general gentlemen Round neck shirts, U-neck shirts, running shirts, underpants, tights, briefs, trunks, etc. In addition, sports underwear such as athletics, outdoor, skiing, etc., including diversion of these underwear, outdoor work, indoor Work underwear for work etc. For homewear, indoor clothes, pajamas, nightgowns, gowns, etc. For outerwear, women's clothes, men's clothes, children's clothes, work clothes, etc. If it is a lining material, it can be preferably used for sportswear, women's clothing, men's clothing, children's clothing, dressing clothes, student clothing, work clothing lining, and the like.

EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these Examples.
In addition, each evaluation in this invention is calculated | required with the following method.

[Water absorption retention ratio]
Distilled water (1.0 cc) was dropped on a glass plate, and the back of the knitted fabric having a sample size of 10 cm × 10 cm was placed on the bottom, that is, on the side in contact with distilled water. The knitted fabric was sandwiched between two filter papers that had been left for 60 seconds, moved to another glass plate and cut to the same size, and left for 60 seconds under a load of 5 g / cm ² . Then, from the difference between the original knitted fabric weight and the knitted fabric weight after water absorption, the knitted fabric's surface layer, back layer (skin surface) from the knitted fabric's water retention weight and the moisture content of each filter paper in contact with the front and back surfaces. ) Water retention rate. The same operation was performed for three knitted fabrics. From this value, the water retention ratio (surface water retention ratio / back surface water retention ratio) was calculated.
The ratio of the water retention ratio indicates the absorption state of distilled water, the water retention ratio of the surface layer is large, and the one having a large water retention ratio moves the dropped distilled water to the surface layer side efficiently. It shows that it has excellent water permeability, and has less stickiness when worn.

[Water absorption diffusion area ratio]
Drop 0.1 cc of an ink solution obtained by diluting a commercially available ink twice with water on a glass plate, and place the back layer of the knitted fabric with a sample size of 10 cm × 10 cm on the bottom, that is, on the side in contact with the ink solution. It was. Then, after being allowed to stand for 60 seconds to absorb the ink liquid, this time it was moved onto another glass plate and again left for 3 minutes with the back layer down. The same operation was performed for three knitted fabrics. The surface area and the back layer of the sample knitted fabric thus obtained were measured for the diffusion area of the ink liquid, and the area ratio (surface diffusion area / back surface diffusion) calculated from the measured values was shown.
The size of the diffusion area indicates the absorption state of the ink liquid, and the surface diffusion area is large and the area ratio is large is a so-called water-absorbing or water-permeable film that efficiently moves the dropped ink liquid to the surface layer side. This means that the diffusion ability is excellent.
In addition, the large diffusion area on the surface layer side indicates that the contact efficiency with the air is improved, and thus the drying property is also excellent.

[A feeling of wearing]
A tennis shirt is made from each knitted fabric, and the superiority of the “stickiness” and “wearing comfort” on the skin side (back layer of the knitted fabric) when playing tennis for 30 minutes under the hot summer heat is as follows. It was evaluated by.
(1) "Smoothness" on the skin side (back layer of the knitted fabric)
○: I don't feel “sticky” at all.
Δ: “Slightly sticky” is felt.
×: Feeling “sticky”.
(2) “Wearing comfort”
○: Wearable and comfortable.
X: It is uncomfortable to wear.

Example 1
Using a 24-gauge double-sided circular knitting machine, F2, F4, and F6, which are yarn feeders for the respective surface knitted fabrics, in the backside honeycomb reversible knitted fabric composed of 12 single-feed yarns of one complete structure F1 to F12 shown in FIG. , F8, F10, F12 All six yarn yarns 1 to 6 are covered with a normal false twisted yarn with a circular cross section of polyester 83 dtex 72 filament, and a yarn feeder for the back (skin surface) knitting structure Among the yarns I1 to I6 for all six yarns of F1, F3, F5, F7, F9, and F11, a polyester 83 dtex 36 filament round is used for the yarns 1 and 4 of the two yarn feeders F1 and F7. A yarn obtained by subjecting a false-twisted yarn having a cross section to a water-repellent finish to four yarn feeders of F3, F5, F9 and F11 which are yarn feeders for other back surface (skin surface) knitting structures, Same polyester 83 decitex as i3, i5, i6 Knitted 6 arranged normally false twisted yarn that is not water-repellent filament round cross-section.

  Polyester 83 dtex 36 Filament round cross-section false-twisted yarn is water-repellent, obtained by winding the yarn back into a cheese shape, dipping in a fluorinated water-repellent agent, and cross-linking by dry curing. It was used.

Thereafter, scouring, dyeing, water absorption processing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 180 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric was 33%, and the water absorption ratio of the front and back layers was 6.3 times, and the water absorption diffusion area ratio was 4.7 times. .

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, there was no feeling of stickiness on the skin and excellent wearing comfort. It was.

Example 2
1 using the same circular knitting machine as in the first embodiment, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures in the knitting structure in FIG. F1, F3, F5, F7, which are yarns for the back side (skin surface) knitting structure, with a normal false twisted yarn with a cross section of polyester 83 dtex 36 filament X on the yarns 1 to 6 of the yarn supply Among the yarns I1 to I6 for all six yarns of F9 and F11, the yarns I1, I3 and I5 of the three yarn feeders F1, F5 and F9 are subjected to the same water repellent processing method as in Example 1. Polyester 83 decitex 36 filament round yarn cross-fitted yarn with a water repellent finish, yarns at the three yarn feeders F3, F7 and F11 which are yarn feeders for the other back (skin) knitting structure Polyester 83 dtex 36 filament round cross section same as strips a2, i4, i6 It was organized by arranging the usually false twisted yarn of not subjected to water-repellent.

Thereafter, scouring, dyeing, water absorption processing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 182 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric was 50%, the water absorption ratio of the front and back layers was 8.5 times, and the water absorption and diffusion area ratio was 7.1 times. .

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, the skin surface was not sticky and had excellent wearing comfort. Was.

Example 3
1 using the same circular knitting machine as in the first embodiment, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures in the knitting structure in FIG. Cotton yarn 60S is applied to yarns 1 to 6 for yarn feeding, and yarns 1 for all six yarns F1, F3, F5, F7, F9, and F11 which are yarn feeders for the back surface (skin surface) knitting structure. ~ Fixed yarns I, I3 and I5 of F1, F5 and F9 among the yarns I1, I3 and I5 are polyester 83 decitex 36 filament round cross section false twisted yarn by the same water repellent method as in Example 1. The same polyester 83 as the yarns i, i, 4 and i6 of the three yarn feeders F3, F7 and F11 which are yarn feeders for the other back surface (skin surface) knitting structure. A normal false twisted yarn having a decitex 36 filament round cross section and not subjected to water repellent finish was arranged and knitted.

Thereafter, scouring, dyeing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 210 g / m ² . However, unlike the dyeing process conditions of Examples 1 and 2, the water absorption process was omitted. The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of the knitted fabric was 50%, and the mixing ratio of the cotton yarn which is a hygroscopic fiber in the knitted fabric was 100%. And the water absorption retention ratio of the front and back layers was 11.7 times, and the water absorption diffusion area ratio was 9.5 times.

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, the skin surface was not sticky and had excellent wearing comfort. Was.

Example 4
1 using the same circular knitting machine as in the first embodiment, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures in the knitting structure in FIG. F1, F3, F5, F7, which are normal false twisted yarns with a round cross section of polyester 83 dtex 72 filaments and yarn feed ports for the back (skin surface) knitting structure Among the yarns A1 to A6 of all six yarns of F9 and F11, the yarns A1, A2, I3, A4 and A5 of the five yarn feeders F1, F3, F5, F7 and F9 F11 which is a yarn feeder for the other back surface (skin surface) knitted fabric is obtained by applying a water repellent yarn to a false twisted yarn having a cross section of polyester 83 dtex 36 filament round by the same water repellent method as in Example 1. The same polyester 83 decitex 36 filament round cross section to the thread 6 It was organized by arranging the usually false twisted yarn of not subjected to water-repellent.

Thereafter, scouring, dyeing, water absorption processing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 185 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric was 83%, the water absorption ratio of the front and back layers was 13.1 times, and the water absorption diffusion area ratio was 12.8 times. .

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, the skin surface was not sticky and had excellent wearing comfort. Was.

Comparative Example 1
Using the same circular knitting machine as in Example 1, in the same knitting structure of FIG. 2 as in Example 1, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures are used. F1 which is a yarn feeding port for the back side (skin surface) knitting structure, and the same false twisted yarn of the same polyester 83 dtex 72 filament round cross section as in Example 1 in the yarns 1 to 6 of the yarn feeding F3, F5, F7, F9, F11 all knitted yarns 1 to i6 are knitted with normal false twisted yarns with a polyester 83 dtex 36 filament round cross section without water repellent finish did.

Thereafter, scouring, dyeing, water absorption processing and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 187 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric is 0%, and the water absorption / retention area ratio of the front and back layers is 3.3 times and the water absorption / diffusion area ratio is as low as 2.7 times. Met.

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under hot summer heat. As shown in the evaluation results shown in Table 1, the skin feels sticky and the wearing feeling is also uncomfortable. there were.

Comparative Example 2
Using the same circular knitting machine as in Example 1, in the same knitting structure of FIG. 2 as in Example 1, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures are used. F1 which is a yarn feeding port for the back side (skin surface) knitting structure, and the same false twisted yarn of the same polyester 83 dtex 72 filament round cross section as in Example 1 in the yarns 1 to 6 of the yarn feeding Polyester 83 dtex by the same water-repellent finishing method as in Example 1 is applied only to the yarn I1 of the single yarn feed port F1 among the yarns I1 to I6 of all six yarns F3, F5, F7, F9, F11. 36 yarn round cross-section false twisted yarn with water-repellent finish is used for the other 3 yarn feeders of F3, F5, F7, F9 and F11 which are yarn feeders for the back side (skin surface) knitting structure Polyester 83 dtex 36 yarns for yarns i2, i3, i4, i5, i6 It was organized by arranging the usually false twisted yarn of which is not subjected to a water-repellent of the instrument round cross-section.

Thereafter, scouring, dyeing, water absorption processing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 181 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric is 17%, and the water absorption / retention area ratio of the front and back layers is 4.9 times, and the water absorption diffusion area ratio is as low as 3.4 times. Met.

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, the skin feels a little sticky and the wearing feeling is also uncomfortable. Met.

Comparative Example 3
Using the same circular knitting machine as in Example 1, in the same knitting structure of FIG. 2 as in Example 1, all six of F2, F4, F6, F8, F10, and F12 which are yarn feeders for the respective surface knitting structures are used. F1 which is a yarn feeding port for the back side (skin surface) knitting structure, and the same false twisted yarn of the same polyester 83 dtex 72 filament round cross section as in Example 1 in the yarns 1 to 6 of the yarn feeding F3, F5, F7, F9, and F11 are repelled by a normal false twisted yarn with a cross section of polyester 83 dtex 36 filament round shape by the same water repellent processing method as in Example 1 for all six yarns A1 to A6. Knitted with water-treated yarn.

Thereafter, scouring, dyeing, water absorption processing, and finishing set were performed in accordance with the dyeing conditions of a normal polyester knitted fabric to obtain a knitted fabric having a basis weight of 182 g / m ² . The mixing ratio of the water-repellent processed yarn on the back surface (skin surface) of this knitted fabric was 100%, so water was not absorbed, and the water absorption ratio and water absorption diffusion area ratio of the front and back layers could not be measured.

  A tennis shirt was made using this knitted fabric, and tennis was played for 30 minutes under the hot summer heat. As shown in the evaluation results shown in Table 1, the skin feels sticky and the wearing feeling is very uncomfortable. It was something.

It is a knitting method of the knitted fabrics of Examples 1 and 2 and Comparative Examples 1 and 2.

Explanation of symbols

F1-F12 Knitting machine yarn feeder NO
D1 to D5 Dial side knitting needles C1 to C6 Cylinder side knitting needles A1 to I6 Knitted fabric back side component yarns B1 to B6 Knitted fabric surface side component yarns

Claims (5)

Consists knitted fabric comprising at least two layers between the surface layer and the backing layer, the backing layer is composed of synthetic fibers multifilament false twisted yarn which is water-repellent from the yarn containing 30 to 90 wt% by mixed knitting, A multilayer structure knitted fabric, characterized in that the surface layer is composed of a water-absorbed yarn and has a water absorption ratio of the surface layer to the back surface layer of 6 times or more and a water absorption diffusion area ratio of 4 times or more. . Consists knitted fabric comprising at least two layers between the surface layer and the backing layer, the backing layer is composed of synthetic fibers multifilament false twisted yarn which is water-repellent from the yarn containing 30 to 90 wt% by mixed knitting, The surface layer is composed of a yarn containing at least 30% by weight of a hygroscopic fiber, has a water absorption ratio of the surface layer to the back surface layer of 6 times or more, and a water absorption diffusion area ratio of 4 times or more. Multilayer structure knitted fabric.   The surface layer and the back surface layer are bound by a binding yarn, and the surface layer is composed of a synthetic fiber multifilament yarn having a single yarn fineness range of 0.5 to 3.0 dtex, The back surface layer is constituted by a yarn having a single yarn fineness of 1.5 to 5.5 times the single yarn fineness of the yarn constituting the surface layer. Multi-layered knitted fabric.   The surface layer is composed of a yarn containing at least 30% by weight of a synthetic fiber multifilament having a plurality of concave grooves extending along the fiber longitudinal direction on the fiber surface, and the back surface layer is a concave extending along the fiber longitudinal direction on the fiber surface. The multi-layer structure knitted fabric according to any one of claims 1 to 3, wherein the knitted fabric is composed of filament yarns having no grooves.   The multilayer structure knitted fabric according to any one of claims 1 to 4, wherein the yarn of the synthetic fiber multifilament includes at least one of a polyester synthetic fiber and a polyamide synthetic fiber as a constituent element.

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