WO2007086491A1

WO2007086491A1 - Cellulose fiber blended fabric

Info

Publication number: WO2007086491A1
Application number: PCT/JP2007/051227
Authority: WO
Inventors: Yuji Yoshida; Shoichi Akita
Original assignee: Asahi Kasei Fibers Corporation
Priority date: 2006-01-26
Filing date: 2007-01-26
Publication date: 2007-08-02
Also published as: KR20080078730A; EP1978150A4; KR101061144B1; JP5102045B2; CN101374991A; EP1978150A1; US20090117799A1; EP1978150B1; JPWO2007086491A1; HK1125423A1; CN101374991B

Abstract

It is intended to provide a fabric which is comfortable for a wearer and shows neither stickiness nor stuffiness in sweating. The above object can be achieved by a cellulose fiber blended fabric characterized by containing cellulose fiber having a dimensional change rate upon water absorption of 2% or above. When employed in sport wears, inners, outers and so on, this fabric can give comfortableness to wears.

Description

Cellulose fiber mixed fabric

Technical field

[0001] The present invention relates to a fabric in which fibers that change in size upon special water absorption are mixed. More specifically, the present invention provides a fabric that is comfortable when sweating while wearing a cellulosic fiber that undergoes a dimensional change (water absorption self-extension or water absorption self-shrinkage) upon water absorption.

Background art

[0002] In conventional clothes, when sweat is generated by exercise such as sports, the fabric absorbs sweat, and the skin and the fabric are in close contact with each other. In order to prevent this, various fabrics have been developed. Only the fabric structure is limited in comfort during sweat absorption. In order to eliminate this sticky feeling and stuffiness, fabrics and clothes using fibers that self-extend during sweat absorption (water absorption) have been proposed. For example, clothes that use self-stretching fibers when absorbing water to improve breathability when absorbing water (see Patent Documents 1, 2, and 3), and clothes that cause unevenness when absorbing sweat (see Patent Documents 4 and 5) Has been proposed.

Certainly, the garments proposed in these patent documents are more comfortable when sweating than garments that do not use water-absorbing self-extending yarns. However, the fibers used in these clothes do not absorb moisture from the body's insensitive digestion, which has almost no hygroscopicity or water absorption. For this reason, there is a feeling of discomfort even when worn in a non-sweat state, and furthermore, since it does not absorb sweat even when sweating, it becomes a garment with a feeling of stuffiness. In addition, it is known that if ordinary cellulose fibers are used, they are comfortable when worn due to their good hygroscopicity. However, a high-functional fabric is desired, for example, since it feels sticky when sweating due to exercise or the like, and feels stuffy when breathing water, improving air permeability. As mentioned above, there are currently no fibers that are comfortable when worn and when sweating.

Patent Document 1: Japanese Patent Laid-Open No. 2005-163225

Patent Document 2: JP-A-2005-36374

Patent Document 3: Japanese Patent Laid-Open No. 2005-23431

Patent Document 4: Japanese Patent Laid-Open No. 2005-146496 Patent Document 5: Japanese Unexamined Patent Publication No. 2006-112009

Disclosure of the invention

Problems to be solved by the invention

[0003] An object of the present invention is to provide a fabric that is comfortable when worn and does not feel damp when it feels sticky when sweating.

Means for solving the problem

[0004] As a result of intensive studies including a wearing test in order to achieve the object, the present inventor has found that the problem is achieved by a fabric using innovative cellulose fibers that cause a dimensional change upon water absorption. .

That is, the object of the present invention is achieved by the following cellulose fiber mixed fabric.

(1) A cellulose fiber-mixed fabric characterized by containing cellulose fibers having a dimensional change rate of 2% or more upon water absorption.

(2) The cellulose fiber-mixed fabric according to (1), wherein water-absorbing self-extending cellulose fibers having a water absorption elongation rate of + 3% or more are contained.

(3) The cellulose fiber mixed fabric according to (2), wherein the cellulose fiber content is 10 wt% or more.

(4) Well loops with water-absorbing self-extending cellulose fibers with a water absorption elongation rate of + 3% or more, and a circular knitted structure with two or more Z or tack loops formed continuously ( 3) The cellulose fiber-mixed fabric as described above.

(5) Water-absorbing self-extending cellulose fibers with a water absorption elongation rate of + 3% or more are rubbed and have a 1 to 4 needle swinging structure, and the knitted fabric density reduction rate upon water absorption is 5 to 40%. The cellulose fiber-mixed fabric according to (3), which has a warp knitting structure,

(6) Water-absorbing self-extending cellulose fiber strength Alkaline aqueous solution 20 gZL or more, 20 ° C or more, 5 minutes or more of immersion treatment The cellulose fiber mixed fabric according to (4) or (5)

(7) The cellulose fiber-mixed fabric according to (1), wherein water-absorbing self-shrinking cellulose fibers having a water absorption elongation rate of 2% or less are contained.

(8) A multi-layered fabric in which a separation part and a non-separation part are repeatedly formed, The outer layer and Z or intermediate layer contain water-absorbing self-shrinking cellulose fibers with a water absorption elongation rate of 2% or less, and the other outer layer is composed of non-water-absorbing shrink fibers, and the non-separating part in the course direction is not contracted. The cellulose fiber-mixed fabric according to (7), comprising a fiber.

(9) A three-dimensionally structured fabric in which a separation part and a non-separation part are formed repeatedly, and one outer layer (C) constituting the separation part has a water-absorption self-shrinking cell having a water absorption elongation rate of 2% or less. Cellulose fiber according to (7), characterized in that it contains roulose fibers, the other outer layer (D) contains non-water-absorbing shrink fibers, and the number of courses of both outer layers is (C)> (D) Mixed fabric.

(10) The cellulose fiber-mixed fabric according to (7), wherein the water-absorbing self-shrinkable cellulose fiber has a twist coefficient of 8200 to 35000.

The invention's effect

[0006] By using the fiber of the present invention, it is possible to produce a fabric that is comfortable when worn and does not feel stuffy when sweating. In particular, this fabric can exert a significant moisture absorption / release effect during exercise, and there is a large difference in clothes and wearing comfort as shown in Patent Documents 1 to 5 proposed so far. In addition, the size of the cellulose fibers changes during water absorption (when sweating in clothes), and the moisture absorption and release characteristics can be improved. However, the effect of changing the water absorption dimension of cellulose fibers can be obtained. For this reason, if the fiber of the present invention is used, it is possible to produce a garment that is comfortable when worn and has no stuffiness if it feels sticky when sweating. When the fabric produced using the fiber of the present invention is applied to sportswear, inner, outer, etc., a comfortable wearing feeling can be obtained.

Brief Description of Drawings

[0007] FIG. 1 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention.

FIG. 2 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention.

FIG. 3 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention.

FIG. 4 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention.

FIG. 5 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention.

FIG. 6 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention. FIG. 7 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention. FIG. 8 is a diagram showing an example of a knitted structure in the cellulose-mixed fabric of the present invention. FIG. 10 is a diagram showing an example of a knitted structure in the cellulose mixed fabric of the present invention. FIG. 11 is a diagram showing an example of a knitted structure in the cellulose mixed fabric of the present invention. FIG. 13 is a diagram showing an example of the knitted structure in the cellulose-mixed fabric of the present invention. FIG. 14 is a diagram showing an example of the knitted structure in the cellulose-mixed fabric of the present invention. FIG. 16 is a diagram showing an example of a knitted structure in a cellulose mixed fabric of the present invention. FIG. 16 is a diagram showing an example of a knitted structure in a cellulose mixed fabric of the present invention.

[0008] [1]-[8] Organization order

[R] Non-separated part of thread and weave

11 Dial needle

12 cylinder needle

13 ordinary fiber

14 Cellulose fiber with a dimensional change rate of 2% or more upon water absorption 21 Separation part

22 Non-separation part

A One outer layer constituting the separation part

B The other outer layer constituting the separation part

C One outer layer constituting the separation part

D The other outer layer constituting the separation part

K knit loop

T tack loop

W Welt Loop

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail. The cellulose fiber in the present invention includes cupra, rayon, purified cellulose fiber, bamboo fiber, cotton and the like, and regenerated cellulose such as cuvula and rayon is preferably used. In order to make a knitted fabric, these long fibers and short fibers (spun yarn) are used. For long fibers, l ldt (decitex: the same symbol is used) to 400 dt, and for short fibers, 160 S (cotton count: the same symbol is used) to 10 S is used. In addition, it can be configured by twisting long fibers and short fibers, twin yarn, triple-filament, or long fibers and short fibers, and each can be used as a thickness suitable for the structure. For long fibers, 40dt to 170dt is preferred, and for short fibers, about 30S to 120S is easy to handle.

[0010] The fabric of the present invention is a fabric in which cellulose fibers having a dimensional change rate of 2% or more upon water absorption are mixed. There are two types of cellulose fibers having a dimensional change rate of 2% or more upon water absorption: water-absorbing self-extending cellulose fibers and water-absorbing self-shrinking cellulose fibers. The inventors of the present invention have found a method for suitably obtaining water-absorbing self-extending cellulose fibers and water-absorbing self-shrinking cellulose fibers, and studied fabric configurations for making the best use of the respective performances, and reached the present invention.

The water-absorbing self-extending cellulose fiber is a cellulose fiber having a water absorption elongation rate of + 2% or more, preferably a water absorption elongation rate of + 3% or more.

The water-absorbing self-shrinking cellulose fiber refers to a cellulose fiber having a water absorption elongation rate of 2% or less.

In the present invention, a fiber having a dimensional change rate of less than 2% at the time of water absorption is referred to as a normal fiber.

Common fibers include polyester fibers such as polyester and polytrimethylene terephthalate, polyamide fibers, polyurethane fibers, cellulose fibers that are not given the ability to change water absorption due to alkali treatment or twisted yarn, which will be described later, acetate, wool, etc. And long fibers or short fibers of any fiber. These cross-sectional shapes are arbitrary, and may be irregular yarns such as round cross-sections and W-shaped cross sections.

In the present invention, the dimensional change rate during water absorption is determined by the following method. Measure the fiber length (A) under a load of 0.05 g / dt (decitex) in an environment of 20 ° C and 65% RH, and then immerse the fiber in water for 30 seconds. Next, the fiber is taken out from the water, and the fiber length (B) after 30 seconds is measured under a load of 0.05 gZdt. The water absorption elongation rate is obtained by the following formula (1). And below As shown in formula (2), the absolute value of the water absorption elongation obtained is the dimensional change rate during water absorption.

[0012] It should be noted that the measurement of the dimensional change rate during absorption of fibers in the fabric is carried out under the same conditions by extracting the fibers from the fabric. At this time, the fiber length to be measured is 30 cm. When 30 cm fiber cannot be extracted from the fabric, the length is measured. In this case, in order to obtain an accurate value, the number of measurement samples should be increased as appropriate. Furthermore, even in the case of a composite yarn obtained by compounding a plurality of fibers having different dimensional change rates at the time of water absorption by fluid blending processing such as interlacing or twisted yarn, or mixed yarn or twisted yarn, the fiber is extracted from the fabric, Measure the rate of dimensional change at the time of water absorption under the same conditions in the state of blended yarn and twisted yarn.

Water absorption elongation (%) = ((B-A) / A) X 100 (1)

Dimensional change rate during water absorption (%) = Absolute value of water absorption elongation rate (2)

Hereinafter, the structure of the water-absorbing self-extending cellulose fiber and the fabric of the present invention using the fiber will be described.

[0013] The water-absorbing self-extending cellulose fiber of the present invention has a water absorption elongation rate of + 2% or more, preferably + 3% or more. To make cellulose fibers into water-absorbing self-elongating yarns, ordinary cellulose fibers should be treated in an alkaline aqueous solution. It has been conventionally known that a cellulose fiber is alkali-treated. For example, mercerization is the most common treatment method. However, in the present invention, by breaking the conventional common sense and carrying out severe alkali treatment, the present inventors succeeded in producing a cellulose fiber that stretches by 2% or more, preferably 3% or more upon water absorption. Specifically, it can be obtained by immersing cellulose fibers in an aqueous solution containing, for example, 20 gZL (liter) or more of sodium hydroxide at 20 ° C or more for 5 minutes or more. The water absorption elongation rate can be controlled by controlling these conditions. For example, it is possible to obtain a cellulose fiber having a water absorption elongation rate of 20% or more, for example, 20% or more, even if the treatment conditions are too strict. Have difficulty. Known alkali treatment agents can be used. For example, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide can be used.

[0014] The alkali concentration is more preferably 20 to 200 g ZL aqueous solution. More preferably, the treatment temperature and time are 20 to 110 ° C for 5 to 120 minutes. This processing temperature is the highest temperature during processing, and the processing time exceeds 20 ° C after the addition of alkali. These times should be 5 minutes or more, including the time to reach the temperature and cool to less than 20 ° C after processing at the maximum temperature. In addition, it is desirable to quickly wash and neutralize the cooling water after draining it. The alkali treatment method is performed in the state of cellulose fibers, and the dyeing strength is evaluated after knitting, or the alkali treatment is performed after the production of the fabric using the cellulose fibers before the alkali treatment, and the dyeing process is subsequently performed. Any method may be used, but a method performed after the production of the fabric is easy.

[0015] In addition, even when the immersion treatment is performed in a strong acid solution such as acetic acid or malic acid, the power to obtain a water-absorbing self-extending cell mouth fiber is obtained. Is slightly smaller.

In the cellulose fiber-mixed fabric of the present invention, the use of cellulose fibers particularly excellent in moisture absorption / release properties greatly contributes to wearing comfort, and the fabrics as shown in Patent Documents 1 to 5 proposed so far. And a great difference in wearing comfort. That is, by using the cellulose fibers that are self-extending water absorption, which is a major feature of the cellulose fiber-mixed fabric of the present invention, the cellulose fibers are elongated at the time of water absorption (at the time of sweat absorption when wearing clothes), thereby improving moisture release. The effect of using cellulose fibers can be further enhanced.

[0016] The method of mixing the water-absorbing self-extending cellulose fiber and the ordinary fiber is a method of knitting or weaving the ordinary fiber and the water-absorbing self-extending cellulose fiber by aligning them on a knitting machine or a loom. Alternatively, they can be mixed by producing a fabric using water-absorbing self-extending cellulose fibers and ordinary fibers as composite yarns such as cross-twisted, composite false twist, and interlace. In the case of a composite yarn, depending on the composite method, there is a case where the elongation of the composite yarn cannot be remarkably obtained upon water absorption. In order to avoid this, the feed rate (feed rate) should be set so that the water-absorbing self-extending cellulose fiber is 0 to 9% shorter than the water-absorbing self-extending cellulose fiber. design. When the yarn length difference is larger than 9%, the composite yarn has insufficient strength, and sufficient fabric strength cannot be obtained. In addition, when the water-absorbing self-extending cellulose fiber is longer, the fiber becomes apparently thick and the moisture absorption / release property is lowered, and the object of the present invention may not be achieved.

[0017] Furthermore, the blending ratio of the cellulose fibers that self-elongate in the composite yarn is determined by the design of the fabric. It can be arbitrarily set taking into account the effects obtained. Desirably, the water-absorbing self-elongating cellulose fiber should have a mixing ratio of 20-80%! /.

If fabrics such as knitted fabrics and woven fabrics are produced using the water-absorbing self-extending cellulose fibers of the present invention, various functions that are comfortable when sweating can be imparted by knitted fabric designs and fabric designs. For example, a double circular knitting machine is used as an example of a structure in which cellulosic fibers that absorb water during sweating stretch and fibers on the surface of the fabric emerge on the fabric surface to form convex portions. The separation part in which one outer layer containing water-absorbing self-extending cellulose fibers and the other outer layer containing ordinary fibers are partially separated and the non-separation part are regular or irregular. If the structure is repeated repeatedly, the water-absorbing self-extending cellulose fiber stretches during sweat-absorbing and the knitted fabric has irregularities, so that the feeling of stickiness can be suppressed.

[0018] In addition, if the water-absorbing self-extending cellulose fiber absorbs sweat, the stitches and woven yarn constituting the fabric are stretched and enlarged, and the density of the sweat-absorbing portion is reduced, the sensation of sweating when exercising or the like is felt.ヽ Manufacturing of clothes is possible. In the case of producing a garment that does not feel the stuffiness, a knitted fabric is more effective than a woven fabric. For example, in a milling structure, the structure of non-water-absorbing stretched fibers and cellulosic fibers can be produced by design such as alternating one or three water-absorbing self-stretching cellulose fibers in three. As described above, in the present invention, by effectively designing the water-absorbing self-extending cellulose fiber with a single circular knitting machine, a double circular knitting machine, a single warp knitting machine, a double warp knitting machine, a loom, etc. It becomes possible to absorb sweat during sweating to form irregularities on the fabric, and to reduce the density of the stitches and yarns that make up the fabric of the water absorbing portion. In the case of warp knitting, a long sinker loop is formed, such as cord (2 stitch swing) from Denbi (1 stitch swing) and satin (3 stitch swing) than the cord. The effects of the present invention can be suitably achieved by arranging stretched cellulose fibers and selecting a warp knitting structure having these as one ridge.

[0019] Further, in the case of manufacturing with a woven fabric, a warp yarn such as twill and satin or a structure with a long float of weft yarn, or a surface layer and a back layer are woven as a double weave, and the warp direction and weft are partially woven. Connecting portions may be provided for every several tens of fibers in the direction, and the water-absorbing self-extending cellulose fibers may be designed to form irregularities on the fabric or to reduce the density of the sweat-absorbing portions by stretching during sweat absorption. this In these fabrics, the water-absorbing self-extending cellulose fibers need not necessarily be exposed on the surface. For example, the water-absorbing self-extending cellulose fibers are arranged in the intermediate layer as a three-layer structure, It is also possible to design the fabric so that the outer layer of ordinary fibers is extruded to extrude the fabric to reduce the unevenness and density.

[0020] Thus, if water-absorbing self-extending cellulose fibers are used, comfortable clothing can be produced particularly during sweating such as exercise. However, with cellulose fibers with a water absorption elongation rate of less than + 2%, it is not possible to produce clothes that are comfortable even during sweating, such as exercise, where changes in the fabric structure are small.

[0021] The cellulose fiber-mixed fabric according to the present invention has a water absorption elongation of + 2% or more, preferably

+ It is preferable to contain 10% or more of 3% or more of water-absorbing self-extending cellulose fiber. When the water-absorbing self-stretching cellulose fiber content is less than 10%, the effect of suppressing the stuffiness is not exhibited effectively even if the cellulose fiber stretches during water absorption. A more preferable mixing ratio is 15 to: LO 0%, and a knitted fabric with 100% water-absorbing self-extending cellulose fibers can exert the effect of the present invention most.

However, if mixed with ordinary fibers such as cotton, acrylic, polyester, nylon, etc., concerns about texture, strength, etc. are eliminated, and it can be applied to various clothing.

[0022] In addition, an arbitrary force can be obtained by mixing water-absorbing self-extending cellulose fibers and ordinary fibers, and it is effective if the cellulose fibers are arranged so as to be configured independently in the course direction or the wale direction. Can be demonstrated. For example, in the case of a knit smooth structure, water-absorbing self-extending cellulose fibers are used continuously for 2 courses, all the loops in the course direction are water-absorbing self-extending cellulose fibers, and adjacent courses are using ordinary fibers such as cotton and acrylic. Thus, the effect of the present invention can be further exhibited. In the case of a structure in which one course uses a single fiber, such as a milling structure, if the water-absorbing self-extending cellulose fiber is arbitrarily arranged so as to have a mixing ratio of 10% or more, the effect of the present invention is achieved. Can demonstrate.

[0023] Further, the cellulose fiber-mixed fabric of the present invention may have, in the knitted fabric, a welt loop made of water-absorbing self-extending cellulose fiber and a portion in which at least two loops of Z or tack loop are formed continuously. In particular, a particularly high effect can be obtained. That is, the welt loop made of the cellulose fiber, and the Z or tack loop are one needle It is better to have at least two loops in the course direction (knitting fabric warp direction), tool direction (knitting fabric weft direction), or diagonal direction on the floor. !

Here, the tack loop and the welt loop are loops included in the knit loop, the tack loop, and the welt loop, which are three elements of the loop constituting the knitted fabric. The tuck loop refers to the structure that does not knock over the force that supplies the thread to the needle, and the welt loop refers to the structure that does not supply the thread to the needle. The tuck loop and the welt loop exist almost linearly or slightly bent in the knitted fabric. Compared to a loop structure that is greatly curved like a knit loop and has a large bending point at the lower part of the knit loop, when water-absorbing and stretching cellulose fibers absorbs and stretches, there is little bending and there is no bending point. It becomes a structure.

[0024] Therefore, these tuck loops or welt loops constitute the structure of the knitted fabric, so that the knitted fabric density or the filling rate at the time of water absorption can be reduced and a knitted fabric having no stuffiness can be obtained. Become. In particular, the welt loop and the Z or tack loop have at least two loops formed continuously in the course direction, the roll direction, or the diagonal direction on one needle bed. As a result, the effect of reducing the feeling of stuffiness during sweating is further increased. Note that the double circular knitting machine has two needle beds, dial and cylinder, but only one needle bed structure on the dial side or only on the cylinder side can be used in the course direction or the roll direction. It is sufficient to consider the design of only one needle bed if it is designed to have at least two loops formed in an oblique direction. In the case of a single circular knitting machine, there is no need for structural design considerations like a double circular knitting machine, and welt loops with water-absorbing self-extending cellulose fibers and Z or tack loops are at least 2 The loop is formed continuously and has a part! / You can speak.

[0025] In addition, the combination of the tack loop and the welt loop can be arbitrary, and can be a continuous loop of the tack loop, a continuous loop of the welt loop, or a continuous loop of a combination of the tack loop and the welt loop. . For example, welt loop and tack loop in the course direction, weal loop, welt loop and 2 wales continue in the wale direction, and weal loops are made 2 wales in the wale direction and the course direction You can use any method, such as continuing a tuck loop for 2 whales. In addition, in the case of a so-called tempura structure in which the length of the knit loop in the wale direction is continuous, the tent part is divided into two yarns and knitted in two courses to complete one course more than twice. By doing so, two loops are continuously formed in an oblique direction, and the effect of the invention can be exhibited.

[0026] These are illustrated in Figs. 1 to 6. In Figs. 1 to 6, [1], [2], and [3] represent the knitting order and the course direction. Organize. The latitude column represents the wale direction. In the figure, only four whales are shown. Actually, this organization is repeated. K represents a knit structure, T represents a tack structure, and W represents a welt structure.

Figures 1 and 2 are examples of knitting a welt loop or a tuck loop in two courses continuously, Figures 3, 4, and 5 are examples of a welt loop or a tuck loop continuing in an oblique direction, and Figure 6 is a welt loop and a tuck loop. An example of the combination of It should be noted that the effect of the present invention is reduced when the tack loop or the welt loop is not continuous.

[0027] When the cellulose-mixed fabric of the present invention is a warp knitted fabric, it may be difficult to take advantage of the characteristics of the water-absorbing self-extending fiber depending on the structure. As a result of intensive studies to prevent this phenomenon, the present inventors have found that a comfortable warp knitted fabric can be produced by the warp knitted fabric design method. That is, in the knitted fabric containing cellulose fibers that absorb water and self-extend, the cellulose fibers are rubbed and the swing structure of 1 to 4 needles makes it possible to achieve the object of the present invention. .

The rubbing referred to here is a structure in which a needle loop (knitted loop) is formed. An insertion tissue that does not form a needle loop is not preferable because the deformation at the time of wearing the knitted fabric does not return, and a so-called Warai phenomenon occurs. Further, in the case of a structure in which rubbing and insertion are repeated, if the insertion is continuous only in one course, it is regarded as a looping structure in the present invention, and no wrinkle phenomenon occurs. However, if the insertion continues for two or more courses, it is not preferable because the wrinkle is likely to occur. In addition, the effect of the invention cannot be obtained when knitting within the same wale found in chain knitting such as 10Z01 without using a swing structure. If such a chain knitting is used, the design should be designed so that the chain knitting does not continue for two or more courses, as in 10Z01Z12Z21. Of course, the second loop is also rubbing.

[0028] Further, the swing of the warp knitted structure by the water-absorbing self-extending cellulose fiber may be 1 to 4 needles. is necessary. The force with which moisture absorption of cellulose fibers becomes more likely to occur as the number of swings increases The vibration density of the cellulose fibers in the warp knitted fabric becomes too high when the swing exceeds 5 stitches, and the moisture release effect decreases when water is absorbed. Phenomenon occurs. Therefore, it is necessary to design the warp knitted cellulose fiber so that it will have 1 to 4 needles. An example of warp knitting design is a two-piece tricot, cellulose fibers that absorb water self-elongate at the knock, normal fibers at the front, and the back structure, 10Z12, 10/23, 10/34, 10/45 etc. Also, 10Z12Z10Z34Z32Z34 etc. change depending on the course, but all the courses are remapped, like \ 12, 00, 12/10/22/10/12/00 ^ In addition, it is possible to make the organization such as a method of discontinuous insertion and insertion by repeating rubbing and insertion.

[0029] Further, the present invention contains a water-absorbing self-extending cellulose fiber! / In the case of a warp knitted fabric, the cellulose fiber is also extracted from the warp knitted fabric, and the water absorption elongation rate (the dimensional change rate at the time of water absorption) of the cellulose fiber is measured using the back 10Z12 structure fiber like a half. It is often difficult except for the organization that can be extracted. For this reason, as a result of studying a scale instead of the water absorption self-elongation rate, the present inventor has found that the comfort of the wearing place can be obtained by keeping the knitted fabric density reduction rate within a predetermined value.

In particular, there is a correlation between the knitted fabric density reduction rate under a small amount of moisture and the wearing comfort, and when a moisture content of 50% of the knitted fabric weight is given to the knitted fabric, the knitted fabric density reduction rate is 5 to 40%. As a result, it became easier for air to move in and out of clothes, and further, the moisture absorption and release of cellulose fiber was sufficiently demonstrated by the movement of air, and it was found that the inside of clothes did not become highly humid. . The rate of decrease in knitted fabric density at the time of water absorption of the warp knitted fabric of the present invention is 5 to 40%, preferably 10 to 30%. When the knitted fabric density reduction rate is less than 5%, it is not preferable because it feels stuffy when sweating and is uncomfortable. If the knitted fabric density reduction rate is greater than 40%, the shape of the clothes will change so much that the feeling of wearing will be impaired, and the appearance will also be unfavorable.

[0030] The warp knitted fabric which is the cellulose-mixed fabric of the present invention preferably contains 10% or more of water-absorbing self-extending cellulose fibers. For the method of mixing the water-absorbing self-extending cellulose fiber and the ordinary fiber, the method of warping and knitting the ordinary fiber and the water-absorbing self-extending cellulose fiber into separate beams, or the water-absorbing self-extending cellulose fiber and the ordinary fiber. And twisted There is a method of warping a composite yarn into a beam as a composite yarn such as composite false twist or interlace. Furthermore, it is possible to manufacture warp knitted fabrics and warp knitted fabrics using warp knitting machines such as single or double tricot machines and Russell machines. The structure can be made of any structure such as Denbi, half, satin, mesh, and three-dimensional knitted fabric with connecting yarn inside the warp knitted fabric.

[0031] The dyeing method for a fabric containing the water-absorbing self-stretching cellulose fiber of the present invention can use a normal dyeing finishing process. The dyeing machine used is a cheese dyeing machine or total dyeing machine when cellulose fibers are alkali-treated in the fiber state, and any dyeing machine such as a liquid dyeing machine or a wins dyeing machine is used for processing the alkali treatment into a fabric state. can do. Further, it is also possible to use a continuous alkaline processing machine such as a mercerized machine that can process the fabric continuously instead of in a batch. In this case, the processing conditions may be set to the conditions of the present invention. The fabric after the alkali treatment is preferably dyed under dyeing conditions corresponding to the fiber material. For processing in the knitted fabric state, the raw machine is pre-set at 150 to 190 ° C with a pinter, etc., and then the process of scouring, alkali treatment, dyeing and finishing is set, and the raw machine is scoured and 150 to 190 It can be carried out in any process, such as a process of pre-setting at ° C with a pin tenter, etc., and dyeing the force and performing a finishing set. The finishing set is carried out at 150 to 190 ° C. At this time, it is sufficient to finish so that the cellulose fibers that absorb and elongate after finishing are not wrinkled or stretched. Further, it is preferable to set the finishing density by drying the fabric before finishing setting. Furthermore, it is possible to apply a softening agent or a water absorbing agent as a finishing agent, and the application of the water absorbing agent is preferable because it improves sweat absorption. It is also possible to apply fiber grease such as a water-absorbing agent during dyeing.

[0032] Hereinafter, the water-absorbing self-shrinking cellulose fiber and the configuration of the fabric of the present invention using the fiber will be described.

The water-absorbing self-shrinking cellulose fiber according to the present invention has a water absorption elongation rate of 2% or less. In order to make the cellulose fiber have a water absorption elongation rate of −2% or less, it is obtained by making a twisted yarn having a twist coefficient of 8200 to 35000.

About the fabric structure for achieving the object of the present invention using the cellulose fiber As a result of earnest examination including a wearing test and the like, the fabric was made into a circular knitted fabric of 2 to 3 layers, and 2 to 3 layers circular knitted fabric If one outer layer or middle layer of the ground uses a fiber that absorbs and contracts when sweating due to exercise, etc., and the other outer layer uses a fiber that has low shrinkage when absorbing sweat, it is flat when dry, but one when absorbing sweat The outer layer fibers shrink, and the other outer layer parts are fibers with small shrinkage, so that they protrude to form a convex part, and return to a flat state when dried after sweat absorption. It was concluded that if clothing was sewn with the side facing the skin, it would be comfortable even when sweating. As a result of various studies to achieve this function, it was found that this function can be achieved by specifying the knitted fabric structure and material.

That is, in order to express the effect of the present invention, in the two-layer circular knitted fabric in which the separation part and the non-separation part are repeatedly formed, one outer layer contains water-absorbing self-shrinking cellulose fibers, and the other A two-layer circular knitted fabric in which the outer layer is composed of non-water-absorbing shrink fibers and the non-separating portion in the course direction is composed of non-water-absorbing shrink fibers is preferable. Here, the non-water-absorbing shrinkable fiber is a fiber having a water absorption elongation rate of more than 2%, and examples thereof include the above-mentioned normal fibers and water-absorbing self-extending fibers. Sectional views of such circular knitted fabrics are shown in Figs.

FIG. 7 is a schematic cross-sectional view of the circular knitted fabric at the time of drying and FIG. 8 at the time of sweat absorption. In the circular knitted fabric, a separation part 21 and a non-separation part 22 are repeatedly formed, one outer layer (A) contains water-absorbing self-shrinking cellulose fibers, and the other outer layer (B) is composed of non-water-absorbing shrink fibers. ing. Force when the fabric surface is flat when dried (Fig. 7) When absorbing water (Fig. 8), the water-absorbing self-shrinking cell mouth fibers constituting (A) contract and the other outer layer (B) in the separation part 21 The fibers that make up the bulge and form the convex part.

[0034] The separation part and the non-separation part can be selected from various structures and structures that can be manufactured by a circular knitting machine as long as they are repeated regularly or irregularly. In the circular knitted fabric of this structure, unlike the three-dimensional structure knitted fabric of another structure described later, the range of the course ratio (A) / (B) of both outer layers is not particularly limited, but the surface of the fabric during drying is not limited. In order to keep it flat, it is preferable that (A) Z (B) = 1.

Further, as a three-layer circular knitted fabric that can exhibit the effects of the present invention, in a three-layer circular knitted fabric in which a separation portion and a non-separation portion are repeatedly formed, one outer layer and Z or an intermediate layer absorb. A three-layer circular knitted fabric containing water self-shrinking cellulose fibers, the other outer layer being composed of non-water-absorbing shrink fibers, and the non-separating portion in the course direction being composed of non-water-absorbing shrink fibers is preferable. [0035] The two- to three-layer multilayer circular knitted fabric according to the present invention is partially separated, and the shape of the separation part is, for example, round, oval, rectangular, rhombus, star-shaped, etc. Arbitrary dots, etc. with an area are optional, and the arrangement can be arbitrary, such as a checkered pattern, a rising shoulder, or an irregular shape. If the separation portion is too small or too large, the fabric unevenness effect during sweating is reduced. In the case of a dot shape having an area such as a round shape or a square shape, the major axis and the minor axis are both preferably 2 to 15 mm, particularly preferably 3 to 12 mm. In the case of a continuous shape having a certain width, the width is preferably 2 to 15 mm, particularly preferably 3 to 12 mm.

Even if the total area of the separation part where the convex part is formed during sweat absorption is too small or too large, there is a feeling of stickiness when sweating. For this reason, it is preferable that the total area, which is the sum of the areas of the protrusions on the side where the protrusions are formed during sweat absorption, is 20 to 90% of the fabric surface during drying. More preferably 30 to 80%, particularly preferably 35 to 75%, the feeling of stickiness is lost even when sweating! ¹衣服 Appropriate clothing.

[0036] The separation part in the 2- to 3-layer circular knitted fabric of the present invention has an arbitrary shape as described above. The non-separation part is formed so as to surround the separation part, and the separation part and the non-separation part must be formed repeatedly.

FIG. 9 shows a configuration example of the separation part and the non-separation part of the circular knitted fabric. The non-separated part in the tool direction (circular knitted fabric warp direction) does not need to be continuous in a straight line, but the non-separated part in the course direction (circular knitted fabric weft direction) continues linearly and Designed to be composed of shrinkable fibers. That is, the non-separation part in the tool direction may contain water-absorbing self-shrinking cellulose fibers, but the non-separation part in the course direction is composed only of non-water-absorbing shrink fibers. The width of the non-separating part in the wale direction is not particularly limited. If the width of the non-separating part in the course direction is too narrow or too wide, the effect of reducing stickiness at the time of sweating is reduced. More preferably, 2 to 12 mm, and particularly preferably 3 to: LO mm, the objective of the present invention can be sufficiently achieved, the stickiness at the time of sweat absorption is suppressed, and the high cost twist coefficient is 8200. It is possible to reduce the mixing ratio of cellulose fiber, which is ~ 35000, and to reduce the cost of circular knitted fabric. Note that the width of the non-separation part is the smallest in the course direction, and the width of the non-separation part is measured.

[0037] A double circular knitting machine is used as an example of a specific method for producing a two-layer circular knitted fabric according to the present invention. In this case, there is a method in which one outer layer is a knitted knitted fabric, the other outer layer is a knitted knitted fabric having two layers of front and back connecting portions every several whales, and the connecting portion is a knit or tack structure. At the time of knitting, one outer layer has a structure containing water-absorbing self-shrinking cellulose fibers. In order to provide a non-separation part that partially connects the outer layers in these structures, non-water-absorbing shrinkage fibers are used every few courses, and in the case of a double circular knitting machine, both the dial and cylinder are knit and connected. It is necessary to use a non-separating part. As a result, the separation part and the non-separation part are repeatedly formed in the course direction and the tool direction, and it becomes possible to form a dot-like convex part having an area such as a round shape or a square shape during sweat absorption.

[0038] As an example of a specific method for producing a three-layer circular knitted fabric according to the present invention, when a double circular knitting machine is used, the top layer and the back layer are knitted with a tentacle, the intermediate layer is a welt, and every few tools. One of the fibers that knitted the three layers, or the method of knitting or tucking together the dials and cylinders with all the yarns, or connecting the outer layer and the intermediate layer by plating knitting of the outer layer of one of the layers There is a method in which the other outer layer is made into a knitted fabric and connected by knit or tuck with an arbitrary fiber constituting them. Also, there is a method in which the intermediate layer is plated with a welt and water-absorbing self-shrinking cellulose fibers are disposed on one outer layer and the intermediate layer. In the case of these circular knittings, if several courses, dials, and cylinders are knit together with a non-water-absorbing shrinkable fiber every few courses, a non-separating part is formed in the course direction and the tool direction, and the round shape during sweat absorption It becomes possible to form a dot-like convex part having a square shape or the like.

[0039] The water-absorbing self-shrinking cellulose fiber according to the present invention is twisted so as to have a twist coefficient of 8200 to 35000. The cellulose fiber is twisted with a twist coefficient of 8200 to 35000, so that the function of contracting during sweat absorption can be exhibited. A twist coefficient of less than 8200 is not preferable because the intended function of the present invention cannot be exhibited. If the twisting coefficient is larger than 35000, circular knitted fabric production becomes difficult and high cost is not preferable. Therefore, the twist coefficient is 8200 ~ 35 000, preferably <ί or 11000 ~ 30000.

In the present invention, the water-absorbing self-shrinking cellulose fibers are preferably mixed in an amount of 5% by weight or more of the entire multilayer circular knitted fabric. If the amount is less than 5% by weight, the formation of convex portions of the circular knitted fabric is slight at the time of sweat absorption according to the present invention, and it is difficult to achieve the object. Also, more than 50% by weight The rate is also unfavorable because the overall shrinkage of the entire circular knitted fabric is increased during sweat absorption and the clothes size changes. The mixing method of the water-absorbing self-shrinking cellulose fiber is arbitrary, and a method of arranging the fiber, a method of making a twisted yarn with a normal fiber, and the like can be performed.

[0040] Since the total area of the portions where the protrusions are formed during sweat absorption is too small or too much, there is a sticky feeling during sweating. The total area of the combined areas is preferably 20 to 90% of the fabric surface when dried. More preferably 30 to 80%, particularly preferably 35 to 75%, a comfortable garment without a sticky feeling when sweating is obtained.

The knitted fabric density of the 2-3 circular knitted fabric of the present invention can be arbitrarily set. The dyeing and finishing method for the two- to three-layer circular knitted fabric of the present invention can use a normal dyeing finishing process, and the dyeing conditions are set according to the fiber material to be used. The dyeing machine used is a liquid dyeing machine or a wine dyeing. The machine is arbitrary. In addition, as an example of a dyeing and finishing process in which it is preferable to add a water-absorbing agent to improve water absorption, the raw machine is put into a dyeing machine, and after scouring and dyeing, it also serves as a finishing process such as a water absorption process. This can be done by any dyeing finishing process, such as a method of performing a finishing set, or a method of performing a wet relaxation process, dyeing after pre-setting, and performing a final set also serving as a finishing process.

[0041] In addition to the above-described embodiments, other preferred U-shaped embodiments using water-absorbing self-shrinking cellulose fibers to form a three-dimensionally structured fabric in which the fabric is partially separated to have an air layer between both outer layers are illustrated in FIG. Shown in 1 0, 11.

FIG. 10 is a schematic cross-sectional view of the three-dimensional structure knitted fabric during drying and FIG. 11 during sweat absorption. In the knitted fabric, a separation part 21 and a non-separation part 22 are repeatedly formed, one outer layer (C) contains water-absorbing self-shrinking cellulose fibers, and the other outer layer (D) is composed of non-water-absorbing shrinkage fibers. Yes. The difference from the above-mentioned configuration is that the surface of the weft fabric has a convex part when it is dried (FIG. 10). This is achieved by knitting so that the number of courses in both outer layers is (C)> (D). When the fabric surface has a convex portion at the time of drying, the thickness of the fabric is increased, and the water-absorbing self-shrinking cellulose fibers constituting (C) contract during warm sweat perspiration due to the presence of an air layer (FIG. 11) Since the convex part in the separation part 21 is reduced and the thickness of the fabric and the air layer are reduced, the heat release property is increased. If it dries after sweat absorption, the convex part is restored again and returns to its original thickness. [0042] That is, in a state where sweat is not applied, heat dissipation proceeds during warm sweating, and excess sweat is not applied, so that the exercise function is lowered and a comfortable fabric is obtained.

Specifically, the separation part and the non-separation part are repeatedly formed! In the three-dimensional structured fabric, one outer layer (C) constituting the separation part contains water-absorbing self-shrinking cellulose fibers, and the other outer layer (D) contains non-water-absorbing shrinking fibers. The object of the present invention can be achieved by a three-dimensionally structured circular knitted fabric characterized in that the number of courses of (C)> (D). Furthermore, the three-dimensionally structured fabric of the present invention has a structure in which one outer layer (C) constituting the separating portion is raised to form a convex portion, and the separating portion and both outer layers are further formed. A connected non-separating part is a structure that is repeated regularly or irregularly. These structures can be selected from various structures and structural strengths that can be produced by a circular knitting machine. When sweat is absorbed, the outer layer containing the water-absorbing self-shrinking cell mouth fibers contracts to reduce the density and reduce the convexity (fabric). If the organization is such that the thickness of the

[0043] In such a three-dimensionally structured fabric, the shape of the separation portion that is partially separated is not limited to a round shape, but also a dot shape having an area such as an elliptical shape, a rectangular shape, a diamond shape, or a star shape. Arbitrary placement is optional, such as checkered pattern, rising to the right, irregular shape. If the size of the separation portion is too small or too large, the convex portion reducing effect during sweat absorption is reduced. In the case of a dot shape having an area such as a round shape or a square shape, it is preferable that the major axis and the minor axis are both 2 to 15 mm, and particularly preferably 3 to 12 mm. In the case of a continuous shape having a certain width, the width is preferably 2 to 15 mm, particularly preferably 3 to 12 mm.

In addition, the total area of the separating portions in the three-dimensional fabric is preferably 20% or more of the surface of the circular knitted fabric because if the amount is too small, the effect of reducing the thickness during sweating is small. If it is more preferably 30% or more, and particularly preferably 40% or more, the amount of heat release increases greatly when the sweating is reduced, and the amount of heat release increases, and a comfortable garment that can be expected to have a sweating suppression effect is obtained.

[0044] The separation part in the three-dimensionally structured fabric of the present invention has an arbitrary shape as described above. A non-separation part is formed so as to surround the separation part, and the separation part and the non-separation part must be repeatedly formed. The non-separation part may be composed of any one of the fibers contained in the separation part, or may be composed of a yarn different from the separation part that may be knitted. For example, the non-separated part in the tool direction contains water-absorbing self-shrinking cellulose fibers, The non-separating part in the course direction can be constituted only by non-water-absorbing shrinkable fibers. As the knitting organization, any organization can be used as long as the organization is knitted using both the cylinder and dial needle beds of a circular knitting machine, such as smooth and milling. In addition, in the non-separation part, containing more non-water-absorbing / contracting fibers can reduce the mixing ratio of cellulose fibers as a three-dimensionally structured fabric, which makes the knitted fabric superior in cost and fastness.

[0045] In the three-dimensionally structured fabric of the present invention, the ratio of the number of courses of (C) and (D) is preferably (C) Z (D) force 1.1 to 5.0, more preferably. 2.0 to 4.0. If the ratio of the number of courses is 1.1 or more, the convex part appears in a normal state where no sweat is absorbed, and the effect of reducing the thickness of the convex part immediately after perspiration can be sufficiently exerted. Further, if the ratio of the course is 5.0 or less, the normal convex portions are formed beautifully, and the convex portion reducing effect at the time of sweat absorption is also clear, which is also preferable in terms of productivity. If the number of courses in the outer layer of the separation section is not constant between the wheels, the whale with the largest number of courses is taken as the number of courses. Furthermore, the number of courses is measured only for knit loops, and tack loops and welt loops are not counted as courses. However, these are applied when the size of the knit loops of both outer layers is approximately the same. When the sizes of the knit loops of both outer layers are different, the calculation is performed by converting both outer layers to the same knit loop size. For example, if the size of the knit loop of one outer layer (C) is half the size of the other outer layer (D), (C) X 2 is treated as (C) in the calculation. The size of the knit loop is determined by the knitting length constituting the separation part.

[0046] In the three-dimensionally structured fabric of the present invention, one outer layer (C) constituting the separating portion may contain water-absorbing self-shrinking cellulose fibers, and may be knitted with non-water-absorbing shrink fibers. . As the knitting method, a method of alternately knitting water-absorbing self-shrinking cellulose fibers and non-water-absorbing shrink fibers or a method of knitting with non-water-absorbing shrink fibers can be used. The mixing ratio is preferably at least wt%. If it is less than 15% by weight, the thickness phenomenon of the convex portion is less preferred at the time of sweat absorption. Particularly preferably, the mixing ratio is 20% by weight or more.

Further, the other outer layer (D) constituting the separation part can contain a small amount of force-absorbing self-shrinking cellulose fibers mainly composed of non-water-absorbing shrinkable fibers. The mixing ratio of water-absorbing self-shrinking cellulose fibers is preferably less than 5% by weight. If the mixing ratio is above, it is preferable because the effect of reducing the convex portion is reduced during sweat absorption. It is preferable that it is composed entirely of non-water-absorbing shrinkable fibers.

[0047] Furthermore, the mixing ratio of cellulose fibers having a twist coefficient of 8200 to 35000 in the entire three-dimensional structure fabric is preferably 5 to 50% by weight, more preferably 10 to 30% by weight. . If the amount is less than 5% by weight, the decrease of the convex portion of the circular knitted fabric is slight when sweating according to the present invention. If the amount exceeds 50% by weight, the shrinkage of the whole three-dimensional structure fabric upon sweating increases and the clothing size changes. A good habit. A method for mixing cellulose fibers having a twist coefficient of 8200 to 35000 is arbitrary, and a method based on fiber arrangement, a method for forming a composite yarn with a non-shrinkable yarn, and the like can be performed.

In the present invention, the three-dimensionally structured fabric can be manufactured by a circular knitting machine, and the density of the circular knitted fabric can be arbitrarily set.

[0048] As an example of a specific method for producing the three-dimensionally structured fabric according to the present invention, a double circular knitting machine is used, and water-absorbing self-shrinking cellulose fibers are partially used in the top of the cylinder. The number of courses in the separation section will be larger than the number of dial courses. At this time, water-absorbing self-shrinking cellulose fibers can be used alone, or knitting yarns with ordinary fibers such as polyester and nylon can be used. Furthermore, a non-separation part is required between the separation part and the separation part. By providing the non-separating part, the separating part and the non-separating part are repeatedly formed in the course direction and the tool direction, and it becomes possible to form a dot-like convex part having an area on the three-dimensionally structured fabric. The thickness of the convex portion can be reduced and the heat dissipation effect can be enhanced.

[0049] A normal dyeing finishing process can be used for the dyeing finish of the three-dimensionally structured fabric of the present invention. The dyeing conditions are set according to the fiber material to be used, and the dyeing machine to be used is optional, such as a liquid dyeing machine or a wins dyeing machine. In addition, it is preferable to add a water absorbing agent in order to improve water absorption. Examples of the dyeing finishing process include putting the raw machine into the dyeing machine, performing scouring and dyeing, and then performing a finishing set that also serves as a finishing treatment such as water absorption treatment, or wet relaxation treatment and dyeing after presetting. However, it is possible to perform any dyeing finishing process, such as a finishing set that also serves as a finishing treatment, but it is necessary to pay attention to the setting of the width and length in the finishing set, and the outer layer contains water-absorbing self-shrinking cellulose fibers. It is necessary to finish so as to maintain the protrusions formed by the. Example

[0050] Hereinafter, the present invention will be described in detail by way of examples. Of course, the present invention is not limited to this.

The evaluation in the examples was measured by the following method.

(1) Wear comfort

An exercise shirt was sewn with the fabric according to the example and exercised until sweating, and the wearing comfort was sensorially evaluated by 10 subjects, and the average value was taken as the wearing comfort.

There are actually 2 or more of the following.

5 ： Even if you sweat, if you feel the stickiness of your clothes, there is no stuffiness and it is extremely comfortable

4: When sweating, don't feel sticky or stuffy

3: When sweating, the clothes are slightly sticky but comfortable

2 ： Feels stickiness and stuffiness when sweating

1: When sweating, it is quite sticky and the stuffiness is very uncomfortable.

(2) Twist factor

The twist coefficient of the cellulose fiber was calculated | required by the following.

Twist factor = (Fineness) ° · ⁵数 Number of twists (Unit: Number of twists Zm)

[0051] (3) Circular knitted fabric manufacturability

At the time of manufacturing the circular knitted fabric, the knitting property of the twisted cellulose fiber was evaluated.

The number of routes that can be produced is 3 or more, and the higher the number, the better.

5: Circular knitted fabric can be manufactured without problems.

4: Some tingling occurs, but a pass can be produced.

3: Although a problem such as a slight thread breakage occurred, a passing product could be manufactured.

2: Yarn breakage, circular knitted fabric can be manufactured, but rejected.

1: Difficult to manufacture circular knitted fabrics due to burrs and thread breakage.

(4) Rate of decrease in knitted fabric density

Measure the dry density (course Z inch X wale Z inch) (E) of the sample in an environment of 20 ° C and 65% RH. Next, 50% of the weight of the warp knitted fabric was absorbed into the sample, and the density at the time of water absorption (course Z inches X wheels Z inches) (F) was measured. Find the knitted fabric density reduction rate. If the density increases when (F) <(E), it is indicated by-(minus).

Rate of decrease in knitted fabric density (%) = ((F-E) / E) X 100 (2)

(5) Protrusions formability when dry

With the three-dimensionally structured fabric obtained in the examples, the appearance of the convexity of the outer layer in a dry state was evaluated.

If it is 2 or more below, the convex part is formed, the numerical value is high!

5 The protrusions pop out clearly.

4 A convex part is formed clearly.

3 Protrusion formation can be identified immediately

2 Convex is slightly formed

1 Convex is not formed, almost flat

(6) Thickness reduction of the convex part during sweat absorption

The three-dimensional fabric obtained in the example was absorbed by 100% by weight, and the appearance reduction of the thickness reduction of the convex portion of the outer layer upon water absorption was evaluated.

If it is 2 or more below, the thickness reduction property of the convex portion is recognized, and the numerical value increases as the value increases, and the effect of the present invention is recognized.

5: The knitted fabric is almost flat

4: The thickness reduction of the convex part is large, and the convex part remains slightly.

3: It can be determined that the thickness of the convex portion has decreased.

2: Thickness of the convex part is slightly reduced, but it is not clear

1: The thickness reduction of the convex part is hardly understood.

[Example 1]

When a milling structure was knitted using a 28 gauge circular knitting machine, ordinary fibers and cellulose fibers were alternately arranged and knitted. In this knitting, a polyester fiber 2-heater false twisted yarn of 84d tZ36f was used as normal fiber, and cupra fiber 84dtZ45f was used as cellulose fiber. In this case, the used cupra fibers are not treated with alkali. It is a regular cupra fiber.

[0054] The knitted raw machine was put into a liquid flow dyeing machine, scoured at 80 ° C for 20 minutes, drained, and then alkali-treated at a concentration of 60 gZL of sodium hydroxide at 30 ° C for 20 minutes. Next, only the ester side was stained at 130 ° C. The dyed knitted fabric is uneven, so after drying using a short loop dryer, it was stretched to the extent that wrinkles of the knitted fabric could be removed with a pin tenter and finished at 170 ° C for 60 seconds. . At the time of this dyeing, a water absorbing agent was added in the bath for dyeing.

When the cubra fibers of the obtained knitted fabric were extracted and the water absorption elongation rate was measured, it was + 5.8%. Moreover, the comfort wearing test at the time of exercise | movement sweating of the obtained knitted fabric was done. Table 1 shows the results of the wearing test.

[0055] [Examples 2 to 8]

In Example 1, the alkali treatment conditions and the type of cellulosic fiber were changed to produce cellulosic fibers having different water absorption elongation rates. The wearing comfort of the knitted fabric using this fiber was evaluated, and the results are shown in Table 1.

[0056] [Example 9]

A normal polyester fiber 56dt / 24f yarn was used as the warp yarn, and a normal polyester fiber 56dtZ24f yarn and two rayon fibers 67dtZ24f were alternately driven into the weft yarn to weave a 3/1 satin structure.

The weaving machine was put into a liquid dyeing machine, scoured at 80 ° C for 20 minutes, drained, and then treated with alkali at a concentration of 50 gZL of hydroxylated lithium for 50 minutes at 50 ° C. Subsequently, only the ester side was stained at 130 ° C. Since the dyed woven fabric is uneven, it was dried using a short loop dryer, then stretched to the extent that wrinkles of the knitted fabric could be removed with a pin tenter, and finished at 180 ° C for 60 seconds. In addition, the water absorbing agent was given at the time of this finishing set. When the rayon fiber of the resulting woven fabric was extracted and the water absorption elongation was measured, it was + 9.3%.

Moreover, the comfortable wearing test at the time of exercise | movement sweating of the obtained fabric was done. Table 1 shows the results of the wearing test.

[0057] [Example 10] Using a 22 gauge circular knitting machine, smooth fabric was knitted using cubra spun yarn l / 64Nm (hair count). The cubra spun yarn used is a normal cubra spun yarn that has not been treated with alkali. The knitted raw machine is put into a liquid dyeing machine, scoured at 80 ° C for 20 minutes, drained, and 30 ° C in sodium hydroxide at a concentration of 60gZL. C20 alkali treatment. Next, the Cubra spun yarn was dyed with a reactive dye. After drying using a short loop dryer, the knitted fabric was stretched to the extent that wrinkles could be removed with a pin tenter and finished at 170 ° C for 60 seconds. In addition, the water absorbing agent was given at the time of this finishing set.

The knitted braided yarn of the resulting knitted fabric was taken out and the water absorption elongation rate was measured to be + 4.7%.

Moreover, the comfort wearing test at the time of exercise | movement sweating of the obtained knitted fabric was done. Table 1 shows the results of the wearing test.

[0058] [Example 11]

Cupra fiber 56dtZ30f and polyester W-shaped cross section yarn 56dtZ30f are interlaced with Awa Spindle interlace nozzle MK-2 prior to false twisting. A composite yarn was prototyped by 1 heater false twist under the conditions of 300 mZ processing speed, first heater temperature 200 ° C, twister belt angle 95 °, draw ratio 0.998 times. The crimp elongation of this composite yarn was 12.1%. A milled knitted fabric in which this composite yarn and 2-fiber false twisted caloette yarn of ordinary fiber 84dtZ36f polyester fiber are alternately arranged using a 28 gauge circular knitting machine is dyed and finished under the following conditions. went. The composite yarn was extracted from the fabric and the water absorption elongation was measured to be + 5.3%.

[0059] The knitted raw machine was put into a liquid flow dyeing machine, scoured at 80 ° C for 20 minutes, drained, and then alkali-treated at a concentration of 60 gZL of sodium hydroxide at 30 ° C for 20 minutes. Subsequently, only the ester side was stained at 130 ° C. Since the dyed knitted fabric is uneven, after drying using a short loop dryer, it was stretched to the extent that wrinkles of the knitted fabric could be removed with a pin tenter, and a finishing set was performed at 170 ° C for 60 seconds.

A comfortable wearing test of the obtained knitted fabric during exercise sweating was performed. Table 1 shows the results of the wearing test. [Example 12]

Nylon 66 highly oriented unstretched yarn 70dtZ34f on TMT Machinery's ATF-21 disk friction type false twisting machine, 400mZ of gear speed, 1st heater temperature 200 ° C, 5 urethane disks, draw ratio 1. False twisting was performed at 260 times. The obtained 1 heater single false twisted yarn and Cubula fiber 56dt / 30f were false twisted and then interlaced with Hebaline Interlace Nozzle P-142, and entangled 80 Zm to make a composite yarn. The crimp elongation of this composite yarn was 71.8%. A double knitted yarn made of this composite yarn and ordinary fiber 84dtZ36f polyester fiber and one temporary twisted yarn are arranged alternately using a 28 gauge circular knitting machine. The composite yarn was extracted from the resulting fabric and the water absorption elongation was measured. The result was + 4.6%.

[0060] The knitted raw machine was put into a liquid flow dyeing machine, refined at 80 ° C for 20 minutes, drained, and then alkali-treated at a concentration of sodium hydroxide of 50 gZL for 40 minutes at 40 ° C. Next, only the nylon side was dyed at 98 ° C. The dyed knitted fabric is uneven, so after drying using a short loop dryer, the knitted fabric was stretched to the extent that wrinkles could be removed with a pin tenter and finished at 170 ° C for 60 seconds. .

A comfortable wearing test of the obtained knitted fabric during exercise sweating was performed. Table 1 shows the results of the wearing test.

[Example 13]

When knitting the structure shown in Fig. 12 using a 28 gauge single circular knitting machine, 1 was arranged to be ordinary fiber, 2 was made of cellulose fiber, 1 was knitted for 3 courses, and 2 was knitted for 3 courses. In this knitting, two-heater false-twisted caloche yarn of 167dtZf polyester fiber was used as normal fiber, and cuvula fiber 84dtZ45f was used as cellulose fiber. In this case, the used cupra fibers are ordinary untreated alkali cupra fibers.

[0061] The knitted raw machine was put into a liquid flow dyeing machine, scoured at 80 ° C for 20 minutes, drained, and then alkali-treated at a concentration of sodium hydroxide of 50 gZL at 30 ° C for 20 minutes. Next, only the ester side was stained at 130 ° C. Since the dyed knitted fabric is uneven, after drying using a short loop dryer, the knitted fabric is stretched to the extent that wrinkles of the knitted fabric can be removed with a pin tenter, and finish setting is performed at 170 ° C for 60 seconds. It was. In addition, the water-absorbing agent is used at the same time as dyeing in the liquid flow dyeing. Granted. The resulting knitted fabric had a structure in which a welt loop was formed continuously in the course direction.

When the cubra fibers of the resulting knitted fabric were extracted and the water absorption elongation rate was measured, the result was + 5.7%.

Using the obtained knitted fabric, a T-shirt was sewn and a wearing test was conducted. Table 2 shows the wearing results.

[Examples 14 to 17]

In Example 13, a knitted fabric was produced by changing the thickness of the polyester yarn or the yarn arrangement during knitting to change the mixing ratio of cellulose fibers, and further changing the number of continuous welt loops of cellulose fibers. The wearing comfort of the obtained knitted fabric was evaluated, and the results are shown in Table 2.

[Example 18]

When knitting the structure shown in Fig. 13 using a 22 gauge double circular knitting machine, the yarns are arranged so that they become composite yarns containing ordinary fibers in 1 and cellulose fibers in 2 and 3, and 1 to 2 are knitted repeatedly 4 times. After the formation, 1 and 3 were knitted four times, and this was repeated to make a knitted fabric. In this knitting, 84dtZ72f polyester fiber two-heater false twisted yarn is used as normal fiber, normal untreated alkali cupra fiber 56dt / 30f as a composite yarn containing cellulose fiber, and polyester W type cross section yarn 56dtZ30f. The raw machine was knitted using the composite yarn that was simultaneously false twisted at 180 ° C. The knitted raw machine was put into a liquid dyeing machine, scoured at 80 ° C for 20 minutes, drained, and alkali-treated at a concentration of 50 gZL of sodium hydroxide for 30 minutes at 30 ° C. Subsequently, only the ester side was dyed at 130 ° C. Since the dyed knitted fabric is uneven, after drying using a short loop dryer, the knitted fabric was stretched to the extent that wrinkles of the knitted fabric could be removed, and the finish was set at 170 ° C for 60 seconds. . A water-absorbing agent was applied simultaneously with the dyeing in the liquid dyeing. The obtained knitted fabric had a structure in which tack loops were continuously formed in the course direction.

Using the obtained knitted fabric, a T-shirt was sewn and a wearing test was conducted. The wearing results are shown in Table 2. [0063] [Example 19]

When knitting a half structure using a 28-gauge single tricot knitting machine, a W-shaped cross-section yarn of polyester 56dtZ30f is used as the normal fiber at the front, and cupra fiber 56dtZ30f is used as the cellulose fiber at the back. Knit by threading aU-in array. In this case, the used cuvula fiber is a normal cupra fiber not treated with alkali.

[0064] The knitted raw machine was put into a liquid flow dyeing machine, scoured at 80 ° C for 20 minutes, drained, and then alkali-treated in an aqueous solution of sodium hydroxide and sodium hydroxide at a concentration of 50gZ L at 30 ° C for 20 minutes. Subsequently, the polyester fiber and the cubra fiber were dyed. Since the dyed knitted fabric is uneven, after drying using a short loop dryer, the knitted fabric is stretched to the extent that wrinkles of the knitted fabric can be removed with a pin tenter and the finish set is set at 170 ° C for 60 seconds. went. A water-absorbing agent was added simultaneously with dyeing during liquid flow dyeing.

When the rate of decrease in the knitted fabric density of the obtained warp knitted fabric was measured, it was 17.8%, and when the cubra fiber of the obtained knitted fabric was extracted and the water absorption elongation rate was measured, it was + 5.8%. .

The obtained knitted fabric was used to sew a T-shirt to conduct a wearing test. Table 3 shows the wearing results.

[0065] [Examples 20 to 22]

In Example 19, a warp knitted fabric was produced by changing the structure and changing the amount of shaking, mixing ratio, and rubbing of cellulose fibers. The wearing comfort of the knitted fabric using these was evaluated. The results are shown in Table 3.

[Example 23]

The organization of Fig. 14 was knitted using a 28 gauge circular knitting machine. For 1, 2 heater false twisted yarn of 84 dt / 36 f polyester fiber as normal fiber was used, and for 2, Cubular fiber 84dtZ45f with 18000 twist coefficient was used. After repeating 1 to 2 10 times, the non-separating part of R in Fig. 9 is made of 2 heater false twisted yarn of 56dtZ24f polyester fiber, which is non-shrinkable yarn, so that the finished width is 4 mm. Organized.

[0066] The knitted raw machine was put into a liquid flow dyeing machine, scoured at 80 ° C for 20 minutes, and then dyed only at the ester side at 130 ° C. The dyed fabric has a width and the knitted fabric is uneven. Therefore, a tentering set was performed at 170 ° C for 60 seconds until the convex portion was extended by a pin tenter.

A T-shirt type was sewn on the resulting knitted fabric, and a wearing test for comfort during exercise sweating was conducted.

Table 4 shows the results of the wearing test.

[Examples 24-27, Comparative Example 2]

In Example 23, a knitted fabric was produced using cellulose fibers having different twisting coefficients shown in Table 4, and the width of the non-separation part was changed, and these were evaluated. The results are shown in Table 4.

[0067] [Example 28]

The organization shown in Fig. 15 was knitted using a 28 gauge circular knitting machine. 1 cocoon is a 2-fiber heater twisted yarn of 84dt Z36f polyester fiber used as ordinary fiber, and is mainly connected to the cylinder side and tack structure, which is the main part of the tengu structure. For No. 2, we used a two-heater false twisted yarn of 56dtZ24f polyester fiber as ordinary fiber and spliced yarn of cupra fiber 84dt Z45f with a twist factor of 18000. After repeating 1 to 2 10 times, use a 2-heater false twisted yarn of 56dt / 24f polyester fiber as the normal fiber in Fig. 10, non-separated part R so that the finished width is 5mm in the French structure. Organized.

[0068] The knitted raw machine was put into a liquid flow dyeing machine, refined at 80 ° C for 20 minutes, and then dyed only at the ester side at 130 ° C. Since the fabric after dyeing has a width and the knitted fabric has an uneven shape, the setter was set at 170 ° C for 60 seconds until the unevenness was extended by a pin tenter.

Table 4 shows the results of the wearing test.

[Example 29]

The structure shown in Fig. 16 was knitted using a 28-gauge circular knitting machine. In [1], [2] [4] [5] [6] [8], 84dtZ36f polyester fiber as a normal fiber 2 heater false twist For the processed yarns [3] and [7], 2 heater false twisted yarns of cupra fiber 56dtZ30f with a twist factor of 25000 and polyester fiber of 56dtZ24f, which is a normal fiber, were used. Adjust these so that the surface of the knitted fabric becomes 56dtZ24f polyester yarn with spliced yarn. After repeating [1] to [4] four times, [5] to [8] were repeated 4 times. The convex part of part (C) is formed by [3] [4] [7] [8] that constitutes the separation part, and the outer layer (D) part by [1] [2] [5] [6] Formed and knitted so that the course number ratio (C) Z (D) is 2.0 times.

[0069] The knitted raw machine was put into a liquid flow dyeing machine, refined at 80 ° C for 20 minutes, and then dyed only at the ester side at 130 ° C. At the same time as dyeing, a water-absorbing agent was also added, and dyeing proceeded while imparting water absorption to the knitted fabric. Since the fabric after dyeing has a width and the knitted fabric is uneven, it is dried with a short loop dryer, 10% wider than the dried width with a pin tenter, and set at 170 ° C for 60 seconds. It was.

The obtained knitted fabric was a three-dimensional circular knitted fabric in which convex portions were developed in the outer layer portion (C) knitted on the cylinder side and the thickness of the convex portions was reduced by perspiration.

Table 5 shows the performance test results of the three-dimensional structure circular knitted fabric.

[0070] [Examples 30 to 34]

In Example 29, the ratio of the number of courses of both outer layers (C) Z (D) was changed according to the number of knitting of [3] [4] [7] [8], and these were evaluated. The results are shown in Table 5.

[0071] [Table 1]

[0072] [Table 2] Sampnore fiber Absorption rate of water absorption Cellulose tack, wearing suitability

(%) Fiber mixing ratio

(%) Number of consecutive

Example 13 Cubula 5. 7 33 3 5 Example 14 Cubra 5. 7 10 3 3 Example 15 Cubra 5. 7 15 3 4 Example 16 Cubur 5. 7 66 3 5 Example 1 7 Cubur 5. 7 100 3 5 Example 18 Cubula 5.7 33 4 4

[0073] [Table 3]

[0074] [Table 4]

Sample Cellulose fiber Course direction Knitted fabric Wear feeling Twisting coefficient Absorption rate of non-separating part Manufacturability

(¾) Width (讓)

Example 23 18000 -3. 0 4 5 5 Example 24 8200 -2. 1 4 5 3 Example 25 1 1000 -2. 5 4 5 4 Example 26 24000 -3. 6 4 5 5 Example 27 35000- 4.4 4 3 5 Example 28 18000 -3. 0 5 5 5 Comparative Example 2 5500-0. 9 4 5 1 [Table 5]

Industrial applicability

If the fabric according to the present invention is used to produce a fabric, it is possible to produce clothing that is comfortable when worn and that does not feel damp when sweating, such as sportswear, innerwear, outerwear, etc. A comfortable wearing feeling can be obtained.

Claims

The scope of the claims

[1] A cellulose fiber-mixed fabric characterized by containing cellulose fibers having a dimensional change rate of 2% or more upon water absorption.

[2] The cellulose fiber-mixed fabric according to [1], wherein water-absorbing self-extending cellulose fibers having a water absorption elongation rate of + 3% or more are contained.

[3] The cellulose fiber-mixed fabric according to claim 2, wherein the cellulose fiber content is 10 wt% or more.

[4] A well-woven loop of water-absorbing self-extending cellulose fibers with a water absorption elongation rate of + 3% or more, and a circular knitted structure with a Z or tuck loop formed continuously from two or more loops. Item 4. The cellulose fiber-mixed fabric according to Item 3.

[5] Water-absorbing self-stretching cellulose fibers having a water absorption elongation rate of + 3% or more are rubbed and have a 1 to 4 needle swinging structure, and the knitted fabric density decrease rate upon water absorption is 5 to 40%. The cellulose fiber-mixed fabric according to claim 3, wherein the fabric is a warp knitted structure.

[6] Water-absorbing self-extending cellulose fiber strength Alkaline aqueous solution 20gZL or more, 20 ° C or more, 5 minutes or more immersion treatment, cellulose fiber mixed fabric according to claim 4 or 5

7. The cellulose fiber-mixed fabric according to claim 1, wherein water-absorbing self-shrinking cellulose fibers having a water absorption elongation rate of −2% or less are contained.

[8] A water-absorbing self-shrinking cellulose in which a separation part and a non-separation part are repeatedly formed, and one outer layer, Z, or intermediate layer has a water absorption elongation of 2% or less 8. The cellulose fiber-mixed fabric according to claim 7, wherein fibers are contained, the other outer layer is composed of non-water-absorbing shrink fibers, and the non-separating portion in the course direction is composed of non-shrink fibers.

[9] A three-dimensionally structured fabric in which a separation part and a non-separation part are repeatedly formed, and one outer layer (C) constituting the separation part has a water absorption self-shrinking cell having a water absorption elongation rate of 2% or less. 8. The mouth fiber is contained, the other outer layer (D) contains non-water-absorbing shrinkage fibers, and the number of courses of both outer layers is (C)> (D). Cellulose fiber mixed fabric [10] The cellulose fiber-mixed fabric according to claim 7, wherein the water-absorbing self-shrinkable cellulose fiber has a twist coefficient of 8200 to 35000.