JP2016030864A - Weft knitted fabric excellent in coolness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weft knitted fabric which is formed by interknitting a cellulose composite yarn and a synthetic fiber yarn, which is free from sticky feeling and discomfort due to sticking to the skin and is excellent in moisture-absorbing and moisture-releasing properties, which prevents heat from persisting internally and provides cool feeling, and which is smooth and soft to the touch and is excellent in comfort when worn.SOLUTION: A weft knitted fabric is formed by interknitting a composite yarn including a cellulose multifilament and a synthetic fiber multifilament blended with each other and a synthetic fiber yarn. A cellulose blend ratio in the weft knitted fabric is 20% or more. In sinker loops arranged in the same wale on at least one surface of the weft knitted fabric, a ratio (X1/X2) of an interval X1 from the tip of the protrusion of the sinker loop of the synthetic fiber yarn to the tip of the protrusion of the sinker loop of the composite yarn which is adjacent thereto in course-ascending order with respect to an interval X2 from the tip of the protrusion of the sinker loop of the composite yarn to the tip of the protrusion of the sinker loop of the synthetic fiber yarn which is adjacent thereto similarly in course-ascending order satisfies the formula (1): 1≤X1/X2≤1.75...formula (1).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a weft knitted fabric obtained by knitting a cellulose composite yarn composed of cellulose multifilament and synthetic multifilament and synthetic fiber. More specifically, the present invention is a weft knitting that has a good touch due to less irregularities on the front and back surfaces of the weft knitted fabric, is less stuffy at the time of wearing, and has a good sweat-diffusion and quick-drying property and excellent refreshing properties. The present invention relates to a ground and a weft knitted fabric product using the same.

  Various functions are required for clothing that directly touches the skin. In particular, underwear is worn under the outer layer even in midsummer, so it is necessary to deal with a lot of sweat treatment, and it is necessary to suppress stickiness and wetness, and the body It is necessary to effectively treat the insensitive excretion from the body and reduce the moisture in the clothes between the body and the underwear, thereby reducing the feeling of stuffiness and providing a comprehensive comfort. In addition, since the skin is directly touched, the touch is also extremely important, and it is an important function for obtaining comfortable comfort that it is smooth and soft, and has excellent elasticity and is easy to operate. In particular, in the country where the humidity is high with temperature, as the underwear for spring and summer, it is extremely important to increase the humidity due to insensitive digestion from the body and the sweat treatment function, and when these functions are not fully demonstrated, No matter how good the touch to the skin is, it cannot be a comfortable underwear.

Conventionally, many underwears using cellulose short fibers that are excellent in hygroscopicity and water absorption have been used mainly with 100% cotton material. Spinned yarn made of short cellulose fibers such as cotton is bulky and has a high porosity in the yarn, which means that a large amount of air with excellent heat insulation exists in the fabric. Because it is inferior to the heat, the heat generated from the body is easily lost and the cool feeling is inferior. Cellulose fibers are excellent in water absorption and hygroscopicity, but because of their very high water retention properties, they tend to keep the perspired sweat in the yarn and in the fabric, resulting in inferior sweat absorption, diffusion, and quick drying, resulting in stickiness. In some cases, the fabric may stick to the skin, causing discomfort. In addition, there are drawbacks such as the cloth being shrunk or stretched by repeated washing and the like, resulting in large dimensional changes and rough texture. In contrast, apparel made of cellulose fiber multifilaments has an aesthetic appearance such as a unique luster that is not found in spun yarns, and can suppress bulkiness compared to spun yarns. Although it is possible to make it better, like cotton, it is easy to keep sweat absorbed in the yarn and fabric due to the characteristics of cellulose fiber due to the characteristics of cellulose fiber, and inferior in sweat absorption, diffusion and quick drying As a result, stickiness is likely to occur, and discomfort may occur due to sticking of the fabric to the skin. Further, the dimensional change such as the fabric is shrunk or stretched by repeated washing or the like, and the defects such as the rough texture are not improved.
On the other hand, clothes made of hydrophobic synthetic fiber multifilaments have excellent dimensional stability and wet strength, but lack water absorption and hygroscopicity, and are inferior to sweat treatment and humidity treatment. .
In order to solve the above-mentioned problem, as described in Patent Document 1 below, a hydrophobic irregularly shaped cross-section yarn has been proposed which improves water absorption and improves the sweat treatment function by water absorption processing or the like. . However, in this case, the moisture absorption performance is not exhibited, so that the feeling of stuffiness cannot be suppressed, and the touch does not reach the cellulose fiber. Therefore, even the technique described in Patent Document 1 cannot provide a product that is comfortable to the skin and comfortable to wear.

  In addition, it has been proposed to knead synthetic fibers into cellulose fibers, etc., and composites as fabrics have also been proposed, but since it does not change that water is retained in the cellulose fiber alone part, sweat diffusibility does not improve, The stickiness and the feeling of sticking to the fabric could not be improved. Furthermore, apparel made of fiber yarns in which cellulose multifilaments and synthetic multifilaments are combined and composited has been developed. In such apparel, the glossiness of cellulose multifilament and synthetic maltofilament, the unique aesthetic appearance and smoothness different from the spun yarn, excellent skin slipping, and the suppression of stuffiness when worn are obtained. On the surface, the phenomenon that the clothing sticks when sweating a lot during wearing was not eliminated, and the wearing comfort was insufficient.

  Patent Document 2 below proposes a fabric using a composite crimped yarn in which cellulose fiber multifilament and synthetic fiber multifilament are mixed and at least one of which is false twisted. Although the proposed fabric has little skin irritation and is less stuffy and has a high sweat fiber treatment function despite its high cellulose fiber mixing ratio, it still has a sweat treatment function under midsummer and layering conditions. As a result, the refreshing feeling was not so high.

  In this way, in the field of clothing that touches the skin directly, such as underwear, while maintaining the aesthetic appearance quality of the filament material, there is no stickiness when sweating a lot in daily life, and there is no sticking to the skin of the fabric In addition, it can suppress stuffiness, has a smooth and soft comfort on the skin, has excellent elasticity, has no sense of restraint during operation, and has little friction stimulation generated between the underwear and the skin during operation. Underwear that has the excellent function of being gentle on the skin even if it is worn repeatedly every day has not yet been obtained.

Japanese Patent No. 3647373 International Publication No. 00/66822

  In view of the problems of the prior art described above, the problem to be solved by the present invention is, in particular, even when sweating during wearing, there is no stickiness or discomfort that sticks to the skin, and it is excellent in moisture absorption and moisture release. There is no feeling of stuffiness, heat from the body is hard to burn, there is also a refreshing feeling on hot days in summer, and the touch is smooth and soft and comfortable to wear, there is little skin irritation due to physical friction, and it operates with excellent elasticity Cellulosic composite yarn and synthetic fiber, which are suitable for clothes that touch the skin directly, such as underwear using filament materials that are gentle to the skin even when used for many years, and bedding, etc. It is to provide a knitted weft fabric.

As a result of earnest examination and repeated experiments to solve the above problems, the present inventor has found that the front and back surfaces of a knitted fabric composed of a composite yarn composed of cellulose fiber multifilament and synthetic fiber multifilament and synthetic fiber multifilament are knitted. It was unexpectedly found that by suppressing the unevenness within a certain range, it was possible to develop excellent sweat absorption, diffusion, and quick drying properties even with cellulose mixed products. In addition, with this structure, heat dissipation and contact cooling feeling are enhanced, and excellent skin smoothness can be expressed, and we have succeeded in developing a weft knitted fabric that is extremely excellent in refreshing feeling and comfortable wearing feeling. Has been completed.
That is, the present invention is as follows.

[1] A weft knitted fabric obtained by knitting a composite yarn in which cellulose multifilament and synthetic multifilament are mixed, and synthetic fiber, wherein the cellulose mixture ratio of the weft knitted fabric is 20% or more, In a sinker loop arranged in the same wale on at least one side of the weft knitted fabric, adjacent to the convex portion tip of the composite yarn sinker loop in the course ascending order, the convex portion tip of the synthetic yarn sinker loop The ratio (X1 / X2) of the distance X1 from the tip of the convex part of the sinker loop of the adjacent composite yarn to the tip of the convex part of the sinker loop of the composite yarn in the ascending order of the distance X2 is as follows: Formula (1):
1 ≦ X1 / X2 ≦ 1.75 (1)
Weft knitted fabric characterized by satisfying

  [2] The weft knitted fabric according to [1], wherein the composite yarn is a composite crimped yarn in which at least one of cellulose multifilament and synthetic multifilament is false twisted.

[3] The synthetic yarn with respect to the height H2 from the needle loop to the sinker loop of the composite yarn adjacent to each other in the ascending order of the course in the sinker loop arranged in the same wale on at least one surface of the weft knitted fabric The ratio of the height H1 from the needle loop to the sinker loop (H1 / H2) is the following formula (2):
1 ≦ H1 / H2 ≦ 2.2 Formula (2)
The weft knitted fabric according to [1] or [2], wherein

[4] The ratio Y2 between the loop width b2 of the synthetic yarn sinker loop and the loop width a2 of the composite yarn sinker loop constituting the tip interval X2 of the loop convex portion on at least one surface of the weft knitted fabric. (A2 / b2) and the ratio Y1 (a1 / b1) of the loop width b1 of the synthetic yarn sinker loop and the loop width a1 of the composite yarn sinker loop constituting the tip interval X1 of the loop convex portion When the average value is Y, the following formula (3):
−0.8 ≦ X1 / X2-Y ≦ 0.8
The weft knitted fabric according to any one of [1] to [3], wherein

  [5] A fabric product using the surface satisfying the formula (1) as a surface directly touching the skin in the weft knitted fabric according to any one of [1] to [4].

  The weft knitted fabric according to the present invention has no feeling of stickiness or discomfort that sticks to the skin even when sweating while wearing, has excellent moisture absorption and moisture release, does not feel stuffy, and hardly heats from the body, There is also a refreshing feeling on hot summer days, and it is smooth and soft and comfortable to wear, has little skin irritation due to physical friction, has excellent elasticity and is not restrained during operation, and has been used for many years. However, it is suitable for apparel such as underwear that is kind to the skin, and for fabrics that directly touch the skin, such as bedding.

In the sinker loops arranged in the same wale, adjacent in the ascending order of the course with respect to the interval X2 from the convex tip of the composite yarn sinker loop to the convex tip of the synthetic yarn sinker loop in the course ascending order The photograph for demonstrating the ratio (X1 / X2) of the space | interval X1 from the convex part tip of the sinker loop of a composite yarn to the convex part tip of a composite yarn sinker loop. In the sinker loops arranged in the same wale, adjacent in the ascending order of the course with respect to the interval X2 from the convex tip of the composite yarn sinker loop to the convex tip of the synthetic yarn sinker loop in the course ascending order The figure for demonstrating ratio (X1 / X2) of the space | interval X1 from the convex part front-end | tip of the sinker loop of a synthetic fiber thread to the convex-part front end of the sinker loop of a composite thread | yarn (in the case of alternating one). In sinker loops arranged in the same wale direction, adjacent in the ascending order of the course, in ascending order of the course, with respect to the distance X2 from the tip of the convex part of the sinker loop of the composite yarn to the convex part of the sinker loop of the synthetic yarn The figure for demonstrating ratio (X1 / X2) of the space | interval X1 from the convex part tip of the sinker loop of the synthetic yarn to the convex part tip of the composite yarn sinker loop (in the case of 1: 2 cross knitting). In the sinker loops arranged in the same wale direction, the ratio of the height H1 from the needle loop to the sinker loop of the synthetic yarn to the height H2 from the adjacent needle loop to the sinker loop of the composite yarn in the course ascending order (H1 Photo for explaining / H2). In the sinker loops arranged in the same wale direction, the ratio of the height H1 from the needle loop to the sinker loop of the synthetic yarn to the height H2 from the adjacent needle loop to the sinker loop of the composite yarn in the course ascending order ( A photograph for explaining H1 / H2). The ratio Y2 (a2 / b2) between the loop width b2 of the synthetic yarn sinker loop and the loop width a2 of the composite yarn sinker loop, which constitutes the tip interval X2 of the loop protrusions in the sinker loops arranged in the same wale direction And an average value of the ratio Y1 (a1 / b1) of the loop width b1 of the synthetic yarn sinker loop and the loop width a1 of the composite yarn sinker loop, which constitutes the tip interval X1 of the loop convex portion, The figure for demonstrating (in the case of alternate one). The ratio Y2 (a2 / b2) between the loop width b2 of the synthetic yarn sinker loop and the loop width a2 of the composite yarn sinker loop, which constitutes the tip interval X2 of the loop protrusions in the sinker loops arranged in the same wale direction And an average value of the ratio Y1 (a1 / b1) of the loop width b1 of the synthetic yarn sinker loop and the loop width a1 of the composite yarn sinker loop, which constitutes the tip interval X1 of the loop convex portion, Illustration for explanation (1: In the case of two copies).

Hereinafter, embodiments of the present invention will be described in detail.
The weft knitted fabric of this embodiment is characterized in that a composite yarn in which cellulose multifilament and synthetic multifilament are mixed and a synthetic fiber (multifilament) yarn are knitted. By knitting the synthetic yarn, the bundle portion of the synthetic yarn becomes a waterway-like portion, and after absorbing sweat, the effect of increasing the diffusibility of sweat and water running to the entire surface of the fabric appears. In the sinker loops arranged in the same wale on at least one of the surfaces, particularly the surface that directly touches the skin, adjacent to the ascending order of the course of the composite yarn sinker loop, the synthetic yarn sinker loop The ratio (X1 / X2) of the interval X1 from the convex portion tip of the synthetic yarn sinker loop to the convex portion tip of the composite yarn sinker loop adjacent to the interval X2 to the convex portion tip in ascending order of the course. ) Less than 1 or more than 1.75, good sweat absorption / diffusion / quick drying cannot be realized. When the convex portion spacing ratio (X1 / X2) between adjacent composite yarn-like and synthetic yarn-like shapes exceeds a certain ratio, the sinker loop interval can be biased and the surface condition is inferior. The lower the smoothness of the fabric, or the more uneven the surface structure of the fabric, the more likely the sweat will accumulate in the biased wider recesses. It tends to accumulate between the skin, causing stickiness and sticking of the fabric to the skin, resulting in an unpleasant wearing feeling. In addition, since the diffusivity is low, the heat dissipation due to the heat of vaporization due to transpiration and quick drying is suppressed, and in the recesses with different volumes, the uniform heat dissipation is hindered, so the heat dissipation is reduced. In addition, since air easily collects in the wide concave portion, the contact cooling sensation is lowered, and as a result, the cooling sensation is inferior.
Furthermore, if the unevenness due to the sinker loop is uneven, the uniform surface property will not be maintained, and the human skin sensation will be more prone to roughness and the skin irritation will be increased, resulting in inferior touch. . In the present invention, X1 and X2 between the convex portions satisfy X1> X2 and are adjacent to each other.

  In order to obtain a desired knitted fabric surface, in consideration of the physical properties of the total fineness, crimp elongation rate, and shrinkage rate of the synthetic yarn to be knitted with the cellulose composite yarn to be used, the knitted and knitted fabric is dyed, etc. It is necessary to optimize the conditions at the time of knitting so that the bulges of the loops appearing after the same are equalized. For example, each knitting length (length of 100 wales) is made different, the loop bulge is made equal, and when using spandex, the draft rate is adjusted, or knitting tension is used It is recommended to adjust each thread to be used. For example, if the fineness is the same, but there is a large difference in the crimp elongation rate or hot water shrinkage rate, it may be adjusted by reducing the knitting length of the yarn having a high crimp elongation rate or hot water shrinkage rate. . In addition, when using a yarn with a very low crimp elongation rate or hot water shrinkage rate, it is difficult for the yarn to be crimped or shrunk due to shrinkage during the processing process, and the loop is raised. Since there is a concern that the skin irritation may increase due to the protruding loop, it is also effective to reduce the braiding length and make the loop difficult to stand.

Examples of the cellulose multifilament include multifilaments such as viscose rayon, polynosic rayon, purified cellulose fiber, and copper ammonia rayon.
The cellulose multifilament can be used by adding a matting agent such as titanium oxide or various known additives depending on the purpose.
As the synthetic fiber multifilament, polyester synthetic fiber, polyamide synthetic fiber, polyolefin and the like are used. Examples of the polyester-based synthetic fibers include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and normal pressure dyeable type polyethylene terephthalate. Examples of the polyamide-based fibers include nylon 6 and nylon 66.
The spinning method of these synthetic multifilaments is not particularly limited, and a known method can be used. In some cases, undrawn yarn or semi-drawn yarn (POY) may be used. Further, it may be a raw yarn or a processed yarn that has been false twisted or twisted.

  The cross-sectional shape of the synthetic multifilament yarn is not particularly limited, and is round, flat, triangular, L-shaped, T-shaped, Y-shaped, W-shaped, π-shaped, cross-shaped, well-shaped, Yaba-shaped, Yakiki-shaped , Glasses-type, glasses-type double-hole hollow, dog-bone-type polygonal type, multi-leaf type, single-hole hollow type, multi-hole hollow type, or irregular shape, or a mixture of these You may do it. Of these, Y-type, W-type, cross-type, well-type, spectacle-type, spectacle-type two-hole hollow, and L-type are preferable because of excellent wicking and high water absorption due to capillary action.

  The total fineness of the cellulose multifilament constituting the composite yarn is preferably 22 to 333 dtex, more preferably 33 to 278 dtex, still more preferably 44 to 167 dtex. If it is less than 22 dtex, it is not preferable because the coolness when directly touching the skin is poor or there is a concern about the strength of the cloth for clothing due to the low fineness. Further, if it exceeds 333 dtex, it becomes thicker and a comfortable feeling for use cannot be obtained, and the touch is inferior.

  The single yarn fineness of the cellulose multifilament constituting the composite yarn is preferably 0.1 to 5.6 dtex, more preferably 2.8 dtex or less, and further preferably 2.0 dtex or less. When the single yarn fineness of the cellulose multifilament exceeds 5.6 dtex, the touch may be deteriorated, which is not preferable.

  The single yarn fineness of the synthetic multifilament constituting the composite yarn and the synthetic multifilament used as the knitting yarn is preferably 0.1 to 5.6 dtex, more preferably 2.8 dtex or less, and still more preferably. 2.0 dtex or less. When it exceeds 5.6 dtex, the touch and the touch are deteriorated, and the skin irritation is increased, which is not preferable.

  The manufacturing method of the weft knitted fabric of this embodiment is not specifically limited, It can manufacture using a normal knitting machine. Further, the knitting structure is not particularly limited, and examples thereof include various structures of circular knitting and weft knitting such as milling, smooth, tengu, kanoko, single bag, Ponti Roman, Milan rib, pearl knitting. These change tissues can also be used and can be appropriately selected according to the purpose. Particularly, in clothing that directly touches the skin, it is preferable to follow the body movement and have no sense of restraint. A weft knitted fabric having a high degree of elasticity and high elasticity is preferred. In addition, since clothes and underwear that directly touch the skin are more preferred to have a good fit that fits the body, tissues that use spandex or the like, such as a bear tengu, are also preferred in order to enhance the stretch and fit.

In the weft knitted fabric of the present embodiment, the course indicates a horizontal loop of the knitted fabric, and the wale indicates a vertical loop.
The weft knitted fabric of the present embodiment is a sinker loop arranged in the same wale on at least one surface, particularly a surface that directly touches the skin, in the course ascending order, from the needle loop of the composite yarn to the sinker loop. The ratio (H1 / H2) of the height H1 from the needle loop to the sinker loop of the synthetic yarn relative to the height H2 is preferably more than 1 and not more than 2.2.
When the height ratio (H1 / H2) between the sinker loop of the adjacent cellulose composite yarn and the synthetic yarn is less than 1 or more than 2.2, there are many irregularities in the fabric thickness direction, and As a result, the smoothness is low and the surface feeling is inferior. The lower the smoothness of the fabric, or the more uneven the surface structure of the fabric, the more likely the sweat will accumulate in the biased wider recesses. It tends to accumulate between the skin and stickiness and the fabric sticks to the skin, resulting in an unpleasant wearing feeling. In addition, since the diffusivity is low, the heat dissipation due to the heat of vaporization due to transpiration and quick drying is suppressed, and in the recesses with different volumes, the uniform heat dissipation is hindered, so the heat dissipation is reduced. Since air easily collects in the wide concave portion, the contact cooling sensation is lowered, and as a result, the cooling sensation is inferior.
Further, if there is variation in the concave portions due to the sinker loop, the uniform surface property is not maintained, and the human skin sensation becomes easy to feel roughness and the like, and the skin irritation is increased, so that the touch is inferior. In the present invention, the heights H1 and H2 satisfy H1> H2.

When the weft knitted fabric of the present embodiment is used as a garment, the weft knitted fabric forms the tip interval X2 of the loop convex portion on at least one surface of the weft knitted fabric, particularly the surface that directly touches the skin, Loop of the synthetic yarn sinker loop constituting the ratio Y2 (a2 / b2) of the loop width b2 of the synthetic yarn sinker loop and the loop width a2 of the composite yarn sinker loop and the tip interval X1 of the loop convex portion The average value Y of the ratio Y1 (a1 / b1) of the width b1 and the loop width a1 of the composite yarn sinker loop is preferably −0.8 or more and 0.8 or less.
When the average value Y is less than −0.8 or more than 0.8, not only can the sinker loop interval be biased, but also due to variations in the loop width constituting the knitted fabric, the width direction of the knitted fabric ( Concavities and convexities are generated in the loop shape in the (course direction), and as a result, gaps in the interval occur, resulting in poor surface quality and low uniformity. The lower the smoothness of the fabric, or the more uneven the surface structure of the fabric, the more likely the sweat will accumulate in the biased wider recesses. It tends to accumulate between the skin, causing stickiness and sticking of the fabric to the skin, resulting in an unpleasant wearing feeling. In addition, since the diffusivity is low, the heat dissipation due to the heat of vaporization due to transpiration and quick drying is suppressed, and in the recesses with different volumes, the uniform heat dissipation is hindered, so the heat dissipation is reduced. In addition, since air easily collects in the wide concave portion, the contact cooling sensation is lowered, and as a result, the cooling sensation is inferior. Here, the width of the sinker loop represents the maximum value in the distance between the yarn outermost layer filaments constituting the loop.

  The method of knitting between the cellulose composite yarn and the synthetic yarn is not particularly limited, and even if it is alternated (see FIG. 2), the knitting form such as 1: 2 (see FIG. 3), 1: 3, etc. Or, it may be a knitting form such as 2: 2, 3: 3. Any knitting method may be used as long as the cellulose mixture ratio of the whole fabric satisfies 20% or more.

The method for processing the knitted fabric is not particularly limited, and it may be dyed in addition to whitening by bleaching and bleaching. As the dyeing of the cellulose composite yarn and the synthetic multifilament yarn, for example, any method such as a pre-dyeing method performed in a yarn state such as a cocoon or cheese, or a post-dying method performed in a knitted fabric form may be used. As dyes, auxiliaries, and finishing agents, those that are generally used for dyeing processing of synthetic fibers and / or cellulose fibers can be arbitrarily selected according to the purpose. Further, it is possible to use a fluorescent brightening agent arbitrarily. In addition, when dyeing a knitted fabric, usually scouring performed before dyeing, bleaching / bleaching, alkali treatment for improving dyeing of cellulose fibers, alkali weight reduction performed with polyester fibers, etc. Also good.
In addition, as a processing method for fabrics (knitted fabrics), heat set in the raw machine state is carried out according to the purpose in order to stabilize the amount of fabric properties during dyeing and to make the product stable and appropriate amount. Also good. Conditions such as temperature, speed, set width, overfeed rate, etc. at this time may be appropriately selected from the target fabric weight, stretchability, etc., but the fabric yellowing, rough curing, single yarn thermal fusion It is desirable to set the temperature to 200 ° C. or less in terms of preventing the occurrence of heat. Moreover, it is also possible to give a yellowing prevention agent at the time of setting the raw machine from the viewpoint of preventing the yellowing of the fabric during the high temperature treatment.

  The conditions for the finishing set are not particularly limited, but are preferably 180 ° C. or lower, more preferably 160 ° C. or lower, as a temperature that does not impair the texture, the elasticity of the fabric, and the crimped feeling. At temperatures exceeding 180 ° C., texture hardening occurs in particular, and the touch is extremely lowered. Further, in some cases, there is a concern that the dye may bleed out and the fastness may decrease, which is not suitable.

Hereinafter, the present invention will be specifically described by way of examples. Each evaluation measurement value in the examples was measured by the following method.
(1) Spacing ratio between sinker loops of adjacent cellulose composite yarn and synthetic yarn (X1 / X2)
Using a Hitachi electron microscope S-3500N, the surface of the fabric corresponding to the skin was photographed. The knitting start side in the fabric warp direction was on the left side, and it was tilted 30 ° toward you and photographed at a magnification of 65 times. Based on the photographed photos, as shown in FIGS. 1 to 3, in the sinker loops arranged in the same wale, in the ascending order of the course, the composite yarn sinker loop from the tip of the convex portion of the composite yarn sinker loop The ratio of the distance X1 from the convex tip of the synthetic fiber sinker loop to the convex tip of the composite yarn sinker loop (X1 / X2) in the ascending order of the distance X2 to the convex tip of the composite yarn Was calculated. By changing the location of the dough, 10 points and interval products were calculated, and the maximum value was adopted.

(2) Height ratio of sinker loop of adjacent cellulose composite yarn and sinker loop of synthetic yarn (H1 / H2)
Using a Hitachi electron microscope S-3500N, the surface of the fabric corresponding to the skin was photographed. Images were taken at a magnification of 60 times with the knitting start side in the fabric warp direction facing down. As shown in FIGS. 4 and 5, based on the photographed photos, in the sinker loops arranged in the same wale, the synthetic fibers with respect to the height H2 from the needle loop to the sinker loop of adjacent composite yarns in the course ascending order The ratio (H1 / H2) of the height H1 from the needle loop to the sinker loop of the yarn was calculated. By changing the location of the dough, 10 points and interval products were calculated, and the maximum value was adopted.

(3) Width of each sinker loop constituting X1 and X2 in (1) The surface of the fabric corresponding to the skin was photographed using a Hitachi electron microscope S-3500N. The knitting start side in the fabric warp direction was on the left side, and it was tilted 30 ° toward you and photographed at a magnification of 65 times. Based on the photographed image, as described in (1) above, after measuring the tip spacing of the projections, turn the microscope stage so that the knitting start side in the fabric longitudinal direction is at the bottom, and the magnification is 60 times The loop widths (a1, a2, b1, b2) of the respective sinker loops constituting the previously selected X1, X2 are measured, and the loop width ratios Y1 (a1 / b1), Y2 (a2 / b2) (X1 / X2-Y) was calculated from the average value ((Y1 + Y2) / 2). Ten points were measured at different locations, and the maximum value was adopted.

(4) Diffusivity (area) (cm ² )
A sample conditioned at 20 ° C. and 65% Rh for one day and night was placed on a plastic cup with the surface corresponding to the skin facing up, and 0.1 ml of water was dropped from above the dough. The diffusion area after minutes is expressed by the following formula:
a × b × π / 4
{Wherein, a and b are the major radius and minor radius of the elliptical area, respectively. }.

(5) Quick drying (residual moisture percentage)
A sample conditioned for 14 days in an environment of 20 ° C. and 65% Rh is sampled in a 10 cm square and its weight is measured. Thereafter, the sample was placed on a plastic cup with the surface touching the skin facing up on a plastic cup in an environment of 20 ° C. and 65%, 0.1 ml of water was dropped from above the dough, and the weight immediately after dropping was measured. The weight of the dough wet after being left on the plastic cup for 30 minutes was measured, and the following formula:
{(X1-X0) / Y} × 100
{In the formula, X0 is the weight of the dough before dripping water, and X1 is the weight of the wet dough after 30 minutes of dropping. }, The residual moisture content (%) after 30 minutes was calculated.

(6) cool contact-sensitive ^{(Qmax (w / cm 2/} 10 ℃))
A sample conditioned at 20 ° C. and 65% Rh for one day is sampled in a 7 cm square. Using a Thermolab II manufactured by Kato Tech Co., Ltd. under a 20 ° C. and 65% Rh environment, a hot plate heated to 30 ° C., which is 10 ° C. higher than room temperature, was placed on the styrofoam with the surface touching the skin facing up. The instantaneous maximum heat transfer amount (Qmax) was measured and evaluated.

(7) Comfort (wearing feeling)
Under an environment of 28 ° C and 60% RH, 10 monitors were made to wear T-shirts made of prototype fabric, and the touch when attaching and detaching, the presence or absence of roughness, and a refreshing feeling were comprehensively evaluated. Sensory evaluation was performed according to the following five-step evaluation criteria as “wearing feeling”, and the mode value was used as the evaluation result.
5: Good 4: Slightly good 3: Can't say either 2: Slightly bad 1: Bad

[Example 1]
One heater obtained by false twisting of nylon 6 undrawn yarn 41dtex26f using a disk friction type false twisting machine manufactured by TMT-Machinery under the conditions of a processing speed of 400 m / min, a first heater temperature of 130 ° C., and four disks. The false twisted yarn and 66 dtex 43f cupra yarn (Asahi Kasei Fibers Co., Ltd., Bemberg (registered trademark)) were mixed with the interlace nozzle manufactured by Hebaline after false twisting to obtain a composite yarn of 102 dtex 22f. Using this composite yarn, 83 dtex 68 f 1 heater nylon 6 false twist yarn false twisted at 130 ° C., and 22 dtex spandex yarn, a composite yarn and a synthetic fiber false twist yarn were alternately placed on a 28 gauge circular knitting machine. A knitted fabric of bare celestial tissue was obtained as arranged. The knitting length of the composite yarn and the synthetic false twisted yarn (yarn length for 100 wales) at the time of knitting was the same.
After setting the knitted fabric with a pin tenter set at 200 ° C., and scouring and bleaching using a liquid flow dyeing machine in the same manner as in a general cellulose / nylon dyeing method, the cupra side is set to 60 ° C. with a reactive dye. After dyeing and washing, the nylon side is dyed and washed at 98 ° C., dehydrated and dried with a shrink surfer, etc., and water-absorbing silicone (Apol AQ88 manufactured by Nikka Corporation) is applied with DIP-NIP to the pin tenter. And finished at 140 ° C. for 60 seconds.
The performance results of the obtained knitted fabric are shown in Table 1 below. Both the front and back surfaces were smooth with few irregularities and excellent in diffusibility, and also had high contact cooling sensation and excellent wearing feeling.

[Example 2]
The bare top knitted fabric is the same as in Example 1 except that the nylon to be knitted is 1 heater 6 nylon false twisted yarn falsely twisted at 160 ° C. and the knitting length of the knitted nylon yarn is 10 mm shorter than the composite yarn at the time of knitting. Got.
The performance results of the obtained knitted fabric are shown in Table 1 below. As in Example 1, the obtained knitted fabric had few irregularities on both the front and back surfaces, high diffusibility and contact cooling sensation, and was excellent in wearing feeling.

[Example 3]
A bare top knitted fabric was obtained in the same manner as in Example 1 except that the arrangement of the composite yarn and the synthetic multifilament false twist yarn was 1: 2 during knitting.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was comfortable to touch, had good diffusibility and quick drying properties, had high contact cooling sensation, and was excellent in wearing comfort.

[Example 4]
1 heater 6 nylon false twisted yarn 75dtex68f false twisted at 160 ° C as synthetic fiber for knitting, and processed in the same manner as in Example 1 except that the knitting length on the knitted nylon yarn side is 10 mm longer than the composite yarn during knitting And I got a bear knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was comfortable to touch, had high diffusibility, and cool contact feeling, and was excellent in wearing comfort.

[Example 5]
1 heater 6 nylon false twisted yarn 57dtex52f false twisted at 160 ° C as synthetic fiber for knit, processed in the same manner as in Example 1 except that the knitting length on the side of the knitted nylon yarn is longer by 15 mm than the composite yarn during knitting And I got a bear knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was comfortable to touch, had high diffusibility, and cool contact feeling, and was excellent in wearing comfort.

[Example 6]
One heater temporary obtained by false twisting of 6 nylon yarn of 33 dtex 26f with a disk friction type false twisting machine manufactured by TMT-Machinery Co., at a processing speed of 400 m / min, a first heater temperature of 130 ° C., and four disks. The twisted yarn and 44 dtex 45f cupra yarn (Asahi Kasei Fibers Co., Ltd., Bemberg (registered trademark)) were mixed with an interlace nozzle manufactured by Hebaline after false twisting to obtain a composite yarn of 75 dtex 71f. Using this composite yarn, 6 nylon false twisted yarn 57dtex52f false-twisted at 160 ° C, and 22 dtex spandex yarn, the composite yarn and the synthetic false twisted yarn are alternately arranged by a 28 gauge circular knitting machine. After knitting, the knitting length of the knitted nylon yarn is 10 mm longer than that of the composite yarn at the time of knitting and knitting to obtain a bare tense tissue production machine, and then the production machine is processed in the same manner as in Example 1. I got a knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was soft and comfortable, had high diffusibility and cold contact sensitivity, and was excellent in wearing comfort.

[Example 7]
One heater temporary obtained by false twisting of 22 dtex20f 66 nylon yarn with a disk friction type false twisting machine manufactured by TMT-Machinery under the conditions of a processing speed of 400 m / min, a first heater temperature of 130 ° C. and four disks. The twisted yarn and 56 dtex 45f cupra yarn (Asahi Kasei Fibers Co., Ltd., Bemberg (registered trademark)) were mixed with a Hebaline interlace nozzle after false twisting to obtain a 79 dtex 65f composite yarn. Using this composite yarn, 6 nylon false twisted yarn 57dtex52f false-twisted at 160 ° C, and 17 dtex spandex yarn, a single composite yarn and synthetic fiber false twisted yarn are alternately arranged and knitted on a 32 gauge circular knitting machine. Occasionally, the knitting length of the knitted nylon yarn is 10 mm longer than that of the composite yarn to obtain a knitted fabric with a bare tentacle structure, and then the knitted fabric is processed in the same manner as in Example 1 to obtain a knitted fabric. It was.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was soft and comfortable, had high diffusibility and cold contact sensitivity, and was excellent in wearing comfort.

[Example 8]
It was obtained by false twisting a 22dtex24f semi-dal type polyester yarn with a disk friction type false twisting machine manufactured by TMT-Machinery under the conditions of a processing speed of 400 m / min, a first heater temperature of 170 ° C. and a number of disks of 4 sheets. 1 heater false twisted yarn and 56dtex 30f cupra yarn (made by Asahi Kasei Fibers Co., Ltd., Bemberg (registered trademark)) containing inorganic pigment are mixed with a Hebaline interlace nozzle after false twisting, and a 78dtex54f composite yarn is obtained. Obtained. Using this composite yarn and full dull type polyester false twisted yarn 84dtex144f and 22dtex spandex yarn false-twisted at 170 ° C, a single composite yarn and synthetic false twisted yarn are alternately arranged on a 32 gauge circular knitting machine. The knitting length of the composite yarn at the time of knitting and the nylon yarn for knitting was the same, and a living machine with a bare tengu structure was obtained.
After setting the knitted fabric at 200 ° C with a pin tenter, scouring and bleaching using a liquid flow dyeing machine in the same way as a general cellulose / polyester dyeing method, the polyester side was dispersed with a disperse dye at 130 ° C. After dyeing and washing, the cupra side is dyed at 60 ° C with a reactive dye, washed, dried with a shrink surfer, etc., and water-absorbing silicone (Apol AQ88 manufactured by Nikka Co., Ltd.) is applied with DIP-NIP. Finishing was performed at 140 ° C. for 60 seconds using a pin tenter.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was soft and soft to the touch, had high diffusibility, quick-drying property, and cool contact feeling, and was excellent in wearing comfort.

[Example 9]
The synthetic yarn to be knitted is treated as a full dull type polyester false twisted yarn 56 dtex 72f false twisted at 170 ° C., and treated in the same manner as in Example 8 except that the knitting length of the knitted ester yarn is 10 mm longer than the composite yarn at the time of knitting. I got a bear knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 1 below. The obtained knitted fabric had a smooth surface with few irregularities on both the front and back surfaces, and was excellent in diffusibility, and also had high contact cooling sensation and excellent wearing feeling. The raw machine was processed in the same manner as in Example 1 to obtain a knitted fabric. The obtained knitted fabric had smooth surface properties on both the front and back surfaces, was comfortable to touch, had high diffusibility, quick-drying property, and cool contact feeling, and was excellent in wearing comfort.

[Example 10]
1 obtained by false twisting a 34 dtex 18f W-shaped cross-sectional polyester yarn with a disk friction type false twisting machine manufactured by TMT-Machinery under the conditions of a processing speed of 400 m / min, a first heater temperature of 170 ° C., and four disks. Heater false twisted yarn and 56 dtex 30f cupra yarn (Asahi Kasei Fibers, Bemberg (registered trademark)) were mixed with an interlace nozzle made by Hebaline after false twisting to obtain a composite yarn of 87 dtex 48f. Using this composite yarn, a 56 dtex 24 f polyester false twist yarn having a round cross section false twisted at 170 ° C., and a 22 dtex spandex yarn, one composite yarn and one synthetic fiber false twist yarn were alternately used in a 32 gauge circular knitting machine. At the time of arrangement and knitting, the knitting length of the knitted ester yarn was made 10 mm longer than that of the composite yarn, and processed in the same manner as in Example 8 to obtain a bare knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric had smooth surface properties on both the front and back surfaces, was soft and comfortable, had excellent diffusibility and quick drying properties, had high contact cooling sensation, and was excellent in wearing comfort.

[Example 11]
84dtex45f cupra yarn (Asahi Kasei Fibers, Bemberg (registered trademark)) and 34dtex18f W-shaped polyester yarn were interlaced with a Kyocera interlace nozzle at a processing speed of 300 m / min to obtain a 118T68f composite yarn. . Using this composite yarn, the original yarn of W-shaped polyester 84dtex30f and the spandex yarn of 22dtex, the knitting lengths of the composite yarn and the knitted ester yarn are the same in a 32 gauge circular knitting machine, Were knitted so as to be alternately arranged, and a bare tengu tissue was obtained.
The raw machine was processed in the same manner as in Example 8 to obtain a bare knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 2 below. The obtained knitted fabric had extremely smooth surface properties on both the front and back surfaces, was thin, soft and soft to the touch, excellent in diffusibility and quick drying, high in contact cooling, and excellent in wearing comfort.

[Example 12]
The composite yarn described in Example 1 and the Ny false twisted yarn described in Example 1 are used, and the knitting lengths of both are the same in a 28 gauge circular knitting machine. Arranged and knitted to become a Tengu live machine.
The knitted fabric was processed in the same manner as in Example 1 except that the raw machine set was removed, to obtain a tentacle knitted fabric.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has an extremely smooth surface on both the front and back, thin, soft and soft to the touch, excellent in diffusibility and quick-drying, high in contact cooling, excellent in draping, and comfortable to wear. there were.

[Example 13]
A milled knitted fabric was obtained in the same manner as in Example 12 except that a milled knitted fabric was formed using a 28 gauge circular knitting machine.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric was extremely smooth with few irregularities, excellent in touch, diffusibility, high contact cooling sensation, and excellent wearing comfort.

[Example 14]
A bare top knitted fabric was obtained in the same manner as in Example 1 except that rayon 84dtex30f was used as the cellulose multifilament yarn for the composite yarn.
The performance results of the obtained knitted fabric are shown in Table 2 below. Although the obtained knitted fabric was slightly inferior to the performance of Example 1, the degree of unevenness (loop height ratio) was small, the diffusion was good, and the wearing comfort was also excellent.

[Comparative Example 1]
A bare top knitted fabric was obtained in the same manner as in Example 1 except that the synthetic fiber false twisted yarn for knitting was a 83 dtex 68f 1 heater 6 nylon false twisted yarn false twisted at 160 ° C.
The performance results of the obtained knitted fabric are shown in Table 2 below. The knitted fabric has a large difference in bulging due to crimping between the composite yarn and the knitted nylon yarn, and in particular, the unevenness on the skin surface side is large, so that the touch is bad and the unevenness can be pooled. Since it was easy, the diffusibility was lowered, it was sticky, and was inferior to the sweat treatment. Moreover, the contact cooling sensation was lowered by the air present in the concavo-convex portion, and the overall comfort was inferior. Furthermore, high crimps of the knitted nylon yarn emerged, and it was easy to get caught in the hand and torsion.

[Comparative Example 2]
A bare top knitted fabric was obtained in the same manner as in Example 4 except that the knitting length of the composite yarn was 10 mm higher than the nylon yarn for knitting during knitting.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has a large difference in bulging due to crimping between the composite yarn and the knitted nylon yarn, and in particular, the unevenness on the skin side becomes large, so that the touch is poor and the unevenness accumulates water. Therefore, the diffusibility was lowered, and it was sticky and inferior to the sweat treatment. Moreover, the contact cooling sensation was lowered by the air present in the concavo-convex portion, and the overall comfort was inferior.

[Comparative Example 3]
A bare top knitted fabric was obtained in the same manner as in Example 4 except that the braided length of the knitted nylon was 25 mm higher than that of the composite yarn during knitting.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has a large difference in bulging due to crimping between the composite yarn and the knitted nylon yarn, and in particular, the unevenness on the skin side becomes large, so that the touch is poor and the unevenness accumulates water. Therefore, the diffusibility was lowered, and it was sticky and inferior to the sweat treatment. Moreover, the contact cooling sensation was lowered by the air present in the concavo-convex portion, and the overall comfort was inferior. Further, the raised knitted nylon yarn was easily caught in the hand and easily entangled.

[Comparative Example 4]
A bare top knitted fabric was obtained in the same manner as in Example 5 except that the knitting lengths of the composite yarn and the knitted nylon yarn were the same during knitting.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has a large difference in bulging due to crimping between the composite yarn and the knitted nylon yarn, and in particular, the unevenness on the skin side becomes large, so that the touch is poor and the unevenness accumulates water. Therefore, the diffusibility was lowered, and it was sticky and inferior to the sweat treatment. Moreover, the contact cooling sensation was lowered by the air present in the concavo-convex portion, and the overall comfort was inferior.

[Comparative Example 5]
A bare top knitted fabric was obtained in the same manner as in Example 6 except that the knitting lengths of the cellulose yarn at the time of knitting and the knitted nylon yarn were the same.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has a large difference in bulging due to crimping between the composite yarn and the knitted nylon yarn, and in particular, the unevenness on the skin side becomes large, so that the touch is poor and the unevenness accumulates water. Therefore, the diffusibility was lowered, and it was sticky and inferior to the sweat treatment. Moreover, the contact cooling sensation was lowered by the air present in the concavo-convex portion, and the overall comfort was inferior.

[Comparative Example 6]
A bare top knitted fabric having a cellulose mixture ratio of 19% was obtained in the same manner as in Example 4 except that the arrangement ratio of the composite yarn and the knitted nylon yarn was 1: 3.
The performance results of the obtained knitted fabric are shown in Table 2 below. The resulting knitted fabric has a low fabric unevenness (loop height ratio) (2.00), is smooth and has good diffusivity, but has a low cellulose mixing ratio, so it is inferior in the treatment of insensitive digestion from the body. As a result, it became stuffy and uncomfortable.

  The weft knitted fabric obtained by knitting the cellulose composite yarn and the synthetic multifilament yarn according to the present invention has particularly low unevenness on the skin side, smooth contact with the skin, excellent tactile sensation, and low skin irritation. Not only that, but especially in high-temperature and high-humidity environments such as in summer, it is difficult to squeeze because it can properly handle insensitive digestion from the body, and sweat absorption and quick-drying are good, so after sweating There is no feeling of stickiness or discomfort that the fabric sticks to the skin, and due to the smooth surface effect of the fabric, the heat dissipation is high, so it is difficult to heat and the fabric is totally cool. In addition, the weft knitted fabric according to the present invention has excellent stretchability and slipperiness, so that there is no restraint feeling at the time of wearing and it is comfortable to wear, and clothing that directly touches the skin of inner, socks, pajamas, sports underwear, etc. It can be suitably used as a material suitable for applications such as bedding.

Claims (5)

A weft knitted fabric in which a composite yarn in which cellulose multifilament and synthetic multifilament are mixed and a synthetic fiber are knitted, wherein the weft knitted fabric has a cellulose mixing ratio of 20% or more, and the weft knitted fabric In the sinker loops arranged in the same wale on at least one surface of the ground, the distance from the convex tip of the composite yarn sinker loop to the convex tip of the synthetic yarn sinker loop adjacent in the course ascending order The ratio (X1 / X2) of the distance X1 from the tip of the convex part of the sinker loop of the adjacent composite yarn to the tip of the convex part of the sinker loop of the composite yarn is expressed by the following formula (1) ):
1 ≦ X1 / X2 ≦ 1.75 (1)
Weft knitted fabric characterized by satisfying   The weft knitted fabric according to claim 1, wherein the composite yarn is a composite crimped yarn in which at least one of cellulose multifilament and synthetic multifilament is false twisted. In the sinker loop arranged in the same wale on at least one surface of the weft knitted fabric, the needle loop of the synthetic yarn with respect to the height H2 from the needle loop of the composite yarn to the sinker loop adjacent in the course ascending order The ratio of the height H1 from the to the sinker loop (H1 / H2) is the following formula (2):
1 ≦ H1 / H2 ≦ 2.2 Formula (2)
The weft knitted fabric according to claim 1 or 2, wherein: On at least one surface of the weft knitted fabric, a ratio Y2 of the loop width b2 of the synthetic yarn sinker loop and the loop width a2 of the composite yarn sinker loop constituting the tip interval X2 of the loop convex portion (a2 / b2) and the average value of the ratio Y1 (a1 / b1) of the loop width b1 of the synthetic yarn sinker loop and the loop width a1 of the composite yarn sinker loop constituting the tip interval X1 of the loop convex portion When Y is defined, the following formula (3):
−0.8 ≦ X1 / X2-Y ≦ 0.8
The weft knitted fabric according to any one of claims 1 to 3, wherein   The fabric product which uses the surface which satisfy | fills said Formula (1) as a surface which touches skin directly in the weft knitted fabric of any one of Claims 1-4.