WO2020230859A1

WO2020230859A1 - Knitted fabric and garment

Info

Publication number: WO2020230859A1
Application number: PCT/JP2020/019318
Authority: WO
Inventors: 祥一秋田
Original assignee: 旭化成株式会社
Priority date: 2019-05-14
Filing date: 2020-05-14
Publication date: 2020-11-19
Also published as: JPWO2020230859A1; CN113853459A; TWI752497B; CN113853459B; TW202104699A; KR20210118913A; JP7065258B2

Abstract

Provided is a single knitted fabric that takes print well regardless of right or wrong side thereof, and that is highly resistant to peeling of a pressure adhesive tape. The present invention relates to a knitted fabric and a garment comprising the knitted fabric. The knitted fabric comprises a single knitted fabric with a jersey structure composed of a non-elastic fiber and an elastic fiber, and is characterized in that: a dynamic friction coefficient of a sinker loop side of the knitted fabric when rubbed from a cast-on direction to a cast-off direction is no greater than 0.500; regarding both a needle loop side and the sinker loop side of the knitted fabric, a difference between a dynamic friction coefficient when rubbed from the cast-on direction to the cast-off direction and a dynamic friction coefficient when rubbed from the cast-off direction to the cast-on direction is no greater than 0.13; and a ratio of the dynamic friction coefficient of the needle loop side to the dynamic friction coefficient of the sinker loop side when rubbed from the cast-on direction to the cast-off direction is 0.70-1.00.

Description

Knitted fabric and garment

The present invention relates to knitted fabrics and garments.

Conventionally, as a method of giving a design to a garment, there is a method of giving a design by printing on a knitted fabric. There is also a method of laminating the knitted fabric and the knitted fabric with a crimping tape in order to reduce the seam contact when the knitted fabric is sewn into a garment. However, although the conventional single knitted fabric is lightweight and easy to obtain a thin knitted fabric and has high versatility, printing is suitable only on one direction surface (needle loop surface) of the knitted fabric, and the crimping tape is knitted. The front surface and the back surface (needle loop surface and sinker loop surface) of the ground were attached, but there was some difficulty in the peeling resistance of the crimping tape on the sinker loop surface. In addition, the design is given mainly to the outside air side of the garment by printing, but since the print is made on the relatively smooth needle loop surface of the knitted fabric, the sinker loop surface, which is inferior in smoothness to the needle loop surface, is used as the garment. It had to be placed on the skin side, and I sometimes felt irritation to the skin.
A method of arranging the needle loop surface of the knitted fabric on the skin side of the garment (see Patent Document 1 below) or arranging the needle loop surface of the knitted fabric on the skin side of the garment in order to reduce irritation to the skin. At the same time, a knitted fabric having a layered structure in which soft cellulose fibers are arranged on the needle loop surface (see Patent Document 2 below) has been proposed, but in both cases, the outside air side of the garment becomes the sinker loop surface. The print quality is poor, a design pattern of good quality cannot be obtained, and the peeling resistance of the crimping tape is not improved.
Further, Patent Document 3 below discloses a knitted fabric in which the positional relationship between loops appearing on the back surface of the knitted fabric is controlled in order to obtain a knitted fabric that feels good to the touch and reduces discomfort due to a bad tactile sensation such as unevenness. There is. However, Patent Document 3 does not provide a solution to the ease of printing on both the front and back surfaces and the peeling resistance of the pressure-bonding tape.
As described above, a knitted fabric suitable for clothing, which can express a design pattern by printing regardless of the front and back of a single knitted fabric and has good peeling resistance of a pressure-bonding tape, has not yet been provided.

Japanese Unexamined Patent Publication No. 2013-213300 International Publication No. 2018/180801 JP-A-2015 / 218407

In view of the above-mentioned prior art, an object to be solved by the present invention is to provide a single knitted fabric in which a print can be easily placed regardless of the front and back of the knitted fabric and the pressure-bonding tape has good peel resistance.

As a result of diligent studies and experiments to solve the above problems, the inventor of the present application unexpectedly found that a single knitted fabric having a small difference in frictional characteristics between the front and back surfaces could be produced, and completed the present invention. Is.
That is, the present invention is as follows.
[1] It is a single knitted fabric having a tenjiku structure composed of inelastic fibers and elastic fibers, and the coefficient of kinetic friction when the sinker loop surface of the knitted fabric is rubbed from the knitting start direction to the knitting end direction is 0.500 or less. The difference between the dynamic friction coefficient when the needle loop surface and the sinker loop surface of the knitted fabric are rubbed from the knitting start direction to the knitting end direction and the dynamic friction coefficient when rubbing from the knitting end direction to the knitting start direction are both 0.13 or less. A knitted fabric characterized in that the ratio of the dynamic friction coefficient of the needle loop surface to the dynamic friction coefficient of the sinker loop surface when rubbing from the knitting start direction to the knitting end direction is 0.70 to 1.00.
[2] The standard deviation of the friction coefficient when the sinker loop surface is rubbed from the knitting start direction to the knitting end direction is 0.500 or less, and the friction coefficient when the sinker loop surface is rubbed from the knitting start direction to the knitting end direction. The knitted fabric according to the above [1], wherein the difference between the standard deviation of the above and the standard deviation of the friction coefficient when rubbing from the knitting end direction to the knitting start direction is 0.200 or less.
[3] The difference between the standard deviation of the friction coefficient when rubbing the needle loop surface from the knitting start direction to the knitting end direction and the standard deviation of the friction coefficient when rubbing from the knitting end direction to the knitting start direction is 0.025 or less. The knitted fabric according to the above [1] or [2].
[4] The knitting according to any one of the above [1] to [3], wherein the ratio of the water diffusion area of the needle loop surface of the knitted fabric to the water diffusion area of the sinker loop surface is 1.00 to 1.10. Ground.
[5] The above-mentioned [1] to [4], wherein the ratio of the cool contact value of the needle loop surface of the knitted fabric to the cool contact value of the sinker loop surface is 1.00 to 1.30. Knitted fabric.
[6] The above-mentioned [1] to [5], wherein the number of courses is 70 to 150 / inch, the number of wells is 50 to 80 / inch, and the density index is 4000 to 12000. Knitted fabric.
[7] The knitted fabric according to any one of [1] to [6] above, wherein the longest inelastic fiber among the inelastic fibers contained in the knitted fabric has a yarn length of 160 to 240 mm / 100 w.
[8] A garment containing the knitted fabric according to any one of the above [1] to [7].
[9] The garment according to the above [8], wherein the needle loop surface of the knitted fabric is arranged on the skin side. [10] The inelastic fiber includes a thread containing a cellulose-based filament thread and a thread made of a synthetic fiber, and the two types of threads are alternately arranged in the well direction, and the thread made of the synthetic fiber is arranged in a living machine. The method for producing a knitted fabric according to any one of the above [1] to [7], wherein the yarn length of the above is increased by 5 mm to 20 mm from the yarn length of the yarn containing the cellulose-based filament yarn.

The single knitted fabric of the present invention has improved smoothness of the sinker loop surface, and the difference in the coefficient of dynamic friction between the sinker loop surface and the needle loop surface is small, so that it is easy to place a print on the front and back of the knitted fabric. By doing so, the convenience of the knitted fabric is improved, and the peeling resistance of the crimping tape is also improved.

It is a schematic diagram of the needle loop surface and the sinker loop surface of the Tenjiku structure.

Hereinafter, embodiments of the present invention will be described in detail.
The knitted fabric of the present embodiment is a single knitted fabric having a tenjiku structure composed of inelastic fibers and elastic fibers, and the coefficient of kinetic friction when the sinker loop surface of the knitted fabric is rubbed from the knitting start direction to the knitting end direction is 0. It is 500 or less, and the difference between the dynamic friction coefficient when the needle loop surface and the sinker loop surface of the knitted fabric are rubbed from the knitting start direction to the knitting end direction and the difference between the dynamic friction coefficient when rubbing from the knitting end direction to the knitting start direction are both. It is characterized by being 0.13 or less, and the ratio of the dynamic friction coefficient of the needle loop surface to the dynamic friction coefficient of the sinker loop surface when rubbing from the knitting start direction to the knitting end direction is 0.70 to 1.00. To do.

First, the knitted fabric of the present embodiment is characterized by being composed of elastic fibers and non-elastic fibers.
The inelastic fiber used may be either a filament yarn or a spun yarn.
Specifically, as the filament yarn, synthetic fibers such as polyamide fibers, polyester fibers, acrylic fibers, polypropylene fibers, vinyl chloride fibers, semi-synthetic fibers such as acetate, and regenerated cellulose fibers are used. Those made of synthetic fibers such as fibers are preferable. The form of the filament yarn may be any of a raw yarn (unprocessed yarn), a false twisted yarn, a yarn-dyed yarn, and the like, or a composite yarn thereof. Further, the cross-sectional shape of the filament yarn is not particularly limited, such as 〇, Δ, cross, W type, M type, C type, I type, dogbone type, and hollow fiber. The spun yarn includes natural fibers such as cotton, wool and hemp, synthetic fibers such as polyamide fibers, polyester fibers, acrylic fibers, polypropylene fibers and vinyl chloride fibers, semi-synthetic fibers such as acetate, and It may be made of chemical fibers such as regenerated fibers such as cellulose-based fibers, and these may be either alone or blended. That is, a suitable material may be appropriately selected depending on the application. For example, when a material that reduces stuffiness in clothes is required as clothing, cellulosic fibers are good, and in order to further impart cool contact feeling and quick-drying properties, filament yarns made of cellulosic fibers (hereinafter, " It is preferable to use "cellulosic filament yarn") and polyester filament, or cellulose filament yarn and polyamide filament as the composite false twisted yarn. Further, the two types of the above fibers (for example, a yarn containing a cellulosic filament yarn and a yarn made of a synthetic fiber) may be alternately arranged in the well direction such as 1: 1, 1: 2, 2: 2. , The knitted fabric may be aligned and have a layered structure.

The inelastic fiber is composed of two types, a thread containing a cellulose filament yarn and a thread made of a synthetic fiber, and when these two types of threads are alternately arranged in the well direction, the thread length of the thread made of the synthetic fiber is increased. It is preferable to set the yarn length of the yarn containing the cellulose-based filament yarn to be 5 mm to 20 mm longer than the yarn length of the yarn to manufacture the raw machine. Since the cellulosic filament has low heat shrinkage and crimp development, the heat shrinkage and crimp development of the yarn composed of only the cellulose filament and the yarn containing the cellulosic filament such as the composite yarn are also small. On the other hand, the yarn made of synthetic fibers has a larger heat shrinkage than the yarn containing a cellulosic filament, and when it is a false twisted yarn, the occurrence of crimping is also large. Therefore, in the production of knitted fabrics in which yarns containing cellulosic filament yarns and yarns made of synthetic fibers are alternately arranged in the well direction, in order to reduce unevenness of the finished fabric and improve smoothness, it is necessary to improve the smoothness at the raw machine manufacturing stage. It is preferable to set the thread length of the thread made of synthetic fibers to be long. It is preferable that the yarn length of the synthetic fiber is 5 mm or more and 20 mm or less with respect to the yarn containing the cellulosic filament yarn because the surface of the finished fabric is less likely to have irregularities and the standard deviation of the friction coefficient can be easily reduced.

The elastic fibers used may be polyurethane elastic yarns, polyether ester elastic yarns, polyamide elastic yarns, polyolefin elastic yarns, or those coated with non-elastic fibers to bring them into a covering state. Further, so-called rubber threads, which are in the form of threads made of natural rubber, synthetic rubber, and semi-synthetic rubber, can be used, but polyurethane elastic threads, which are excellent in elasticity and are generally widely used, are preferable. Among them, polyurethane elastic yarn is preferable, and more preferably, polyurethane made of polyurethane produced by performing a chain extension reaction with a prepolymer from polytetramethylene glycol and diphenylmethane-4,4-diisocyanate and ethylenediamine as a chain extender. It is an elastic thread.

The knitted fabric of the present embodiment is characterized by being a single knitted fabric made of a plain fabric.
The single knitted fabric made of a plain fabric is the simplest knitted fabric, has good production efficiency, can be made thin, and is lightweight, so it is suitable as wear. In a single knitted fabric that is not a plain structure, the shapes of the needle loop surface and the sinker loop surface are significantly different, and it may be difficult to align the shapes and make the smoothness equal. Single knitted fabrics that are not Tianzhu organizations include inlay organizations and Kanoko organizations. Double knitted fabrics and tricot knitted fabrics, which are not single knitted fabrics, have lower production efficiency than single knitted fabrics, and may be difficult to reduce in thickness and weight. In the tenjiku structure, in order to further add the performance of the knitted fabric, a generally-called three-layer tenjiku knitted fabric composed of two types of inelastic fibers and one type of elastic fibers may be used. By using a three-layer knitted fabric, one more type of inelastic fiber can be used than in a normal knitted fabric, so that the characteristics of the added inelastic fiber can be imparted to the knitted fabric. As the inelastic fiber at that time, a fiber having the property to be imparted may be arbitrarily used. For example, if it is desired to impart moisture absorption and desorption to the knitted fabric, cellulose fibers may be used.

The knitted fabric of the present embodiment has a dynamic friction coefficient of 0.500 or less, preferably 0.400 or less, more preferably 0.300 or less when the sinker loop surface of the knitted fabric is rubbed from the knitting start direction to the knitting end direction. It is as follows. If the coefficient of kinetic friction when rubbing from the knitting start direction to the knitting end direction of the sinker loop surface of the knitted fabric exceeds 0.500, the smoothness of the knitted fabric surface is poor and the print on the sinker loop surface of the knitted fabric is poor. This may result in a decrease in the peeling resistance of the crimping tape.
In the knitted fabric of the present embodiment, the knitting ends when the inelastic fibers in the knitted fabric can be easily extracted, and the knitting starts in the opposite direction. Further, "friction from the knitting start direction to the knitting end direction" means friction in the well direction (warp direction) from the knitting start direction to the knitting end direction.

In the knitted fabric of the present embodiment, the difference between the dynamic friction coefficient when the needle loop surface and the sinker loop surface of the knitted fabric are rubbed from the knitting start direction to the knitting end direction and the dynamic friction coefficient when rubbing from the knitting end direction to the knitting start direction. Are both 0.13 or less, preferably 0.12 or less, and more preferably 0.11 or less. When the difference between the dynamic friction coefficient when rubbing the needle loop surface and sinker loop surface of the knitted fabric from the knitting start direction to the knitting end direction and the dynamic friction coefficient when rubbing from the knitting end direction to the knitting start direction exceeds 0.13, In particular, the smoothness of the sinker loop surface is poor, the print on the sinker loop surface is poorly printed, and the peeling resistance of the pressure-bonding tape may be lowered.

In the knitted fabric of the present embodiment, the ratio of the dynamic friction coefficient of the needle loop surface of the knitted fabric to the dynamic friction coefficient of the sinker loop surface of the knitted fabric when the knitted fabric is rubbed from the knitting start direction to the knitting end direction (dynamic friction of the needle loop surface). The coefficient / coefficient of dynamic friction of the sinker loop surface) is 0.70 to 1.00, preferably 0.80 to 1.00, and more preferably 0.90 to 1.00. If the ratio of the dynamic friction coefficient of the needle loop surface of the knitted fabric to the dynamic friction coefficient of the sinker loop surface of the knitted fabric when rubbing from the knitting start direction to the knitting end direction of the knitted fabric is less than 0.70, the sinker loop surface of the knitted fabric Since the smoothness is poor, the print on the sinker loop surface of the knitted fabric is poorly placed, and the peeling resistance of the crimping tape may also be lowered. Due to the structure of the loop, the friction of the sinker loop of the knitted fabric when it rubs from the knitting start direction to the knitting end direction of the knitted fabric is the needle loop surface of the knitted fabric when it rubs from the knitting start direction to the knitting end direction of the knitted fabric. Since it cannot be better than friction, the ratio of the dynamic friction coefficient of the needle loop surface of the knitted fabric to the dynamic friction coefficient of the sinker loop surface of the knitted fabric when rubbing from the knitting start direction to the knitting end direction of the knitted fabric is 1. It rarely exceeds 00.

From the viewpoint of print placement and peeling resistance of the crimping tape, the standard deviation of the friction coefficient when rubbing the sinker loop surface of the knitted fabric of the present embodiment from the knitting start direction to the knitting end direction shall be 0.500 or less. Is preferable, more preferably 0.400 or less, still more preferably 0.300 or less, and particularly preferably 0.200 or less.

The knitted fabric of the present embodiment has a standard deviation of friction coefficient and a knitting end when the knitted fabric is rubbed from the knitting start direction to the knit end direction on the sinker loop surface of the knitted fabric from the viewpoint of print placement and peeling resistance of the pressure-bonding tape. The difference in the standard deviation of the friction coefficient when rubbing from the direction to the knitting start direction is preferably 0.20 or less, more preferably 0.18 or less, still more preferably 0.15 or less.

The knitted fabric of the present embodiment has the standard deviation of the coefficient of friction and the knitting end direction when the knitted fabric is rubbed from the knitting start direction to the knit end direction on the needle loop surface of the knitted fabric from the viewpoint of print placement and peeling resistance of the pressure-bonding tape. The difference in the standard deviation of the friction coefficient when rubbing in the knitting start direction is preferably 0.025 or less, more preferably 0.020 or less, and further preferably 0.017 or less.

Generally, a single knitted fabric consisting of a plain structure has a different structure on the front and back of the knitted fabric, and has a needle loop surface and a sinker loop surface. As illustrated in FIG. 1, since the needle loop surface has V-shaped continuous stitches arranged, there is little friction in the vertical and horizontal directions of the knitted fabric, whereas the sinker loop surface has semicircular stitches. Since they are arranged, the friction in the vertical direction of the knitted fabric is particularly high. Furthermore, on the needle loop surface and the sinker loop surface, the friction from the knitting start direction to the knitting end direction of the knitted fabric is larger than the friction from the knitting end direction to the knitting start direction of the knitted fabric, and it is directional and has uniform smoothness. In particular, the friction on the sinker loop surface varies greatly depending on the direction. This is because the knitting gives direction to the way the threads overlap. Therefore, making the friction on the sinker loop surface uniform greatly affects the ease of printing and the peeling resistance of the crimping tape.

The friction characteristics showing the smoothness of the knitted fabric of the present embodiment are measured using a static / dynamic friction measuring machine Tribomaster Type: TL201Ts manufactured by Trinity Lab. The conditions for measurement are: grinder: patternless type / contact surface 11 mm × 15 mm, measurement load: 3.75 g, friction speed 30 mm / sec, friction distance 100 mm, and reciprocate three times. Friction is started from the knitting start direction to the knitting end direction, and after rubbing 100 mm, the friction direction is reversed and the knitting start direction is rubbed from the knitting end direction. This operation is repeated 3 times to calculate the dynamic friction coefficient and the standard deviation of the friction coefficient from the knitting start direction to the knitting end direction, and the dynamic friction coefficient and the friction coefficient standard deviation from the knitting end direction to the knitting start direction. Use the calculated value of the average of.

In the knitted fabric of the present embodiment, the ratio of the water diffusion area of the needle loop surface of the knitted fabric to the water diffusion area of the sinker loop surface is preferably 1.00 to 1.10, more preferably 1.00 to 1. It is 08, more preferably 1.00 to 1.06, and even more preferably 1.00 to 1.04. If the surface of the knitted fabric is smooth, the moisture absorbed by the surface of the knitted fabric easily spreads to the surface of the knitted fabric, so that the water diffusion area can be considered as one of the functions expressing smoothness. The ratio of the water diffusion area of the needle loop surface of the knitted fabric to the water diffusion area of the sinker loop surface of the knitted fabric (needle loop surface / sinker loop surface) exceeds 1.10 means that the water on the sinker loop surface of the knitted fabric Since the diffusivity is inferior to the water diffusibility of the needle loop surface of the knitted fabric and the smoothness is inferior, the print on the sinker loop surface may not be printed well and the peeling resistance of the crimping tape may be reduced. .. Due to the structure of the loop, the sinker loop surface of the knitted fabric is never better than the smoothness of the needle loop surface of the knitted fabric. Therefore, the water diffusivity of the sinker loop surface of the knitted fabric is the water of the needle loop surface of the knitted fabric. It is not better than diffusivity, and the ratio of the water diffusion area of the needle loop surface of the knitted fabric to the water diffusion area of the sinker loop surface of the knitted fabric is rarely less than 1.00.

In the knitted fabric of the present embodiment, the ratio of the cool contact value of the needle loop surface of the knitted fabric to the cool contact value of the sinker loop surface of the knitted fabric is preferably 1.00 to 1.30, more preferably 1. It is .00 to 1.25, more preferably 1.00 to 1.20. If the surface of the knitted fabric is smooth, the contact area increases and the cool contact feeling becomes high. Therefore, the cool contact feeling value can be considered as one of the functions expressing the smoothness. If the ratio of the cool contact value of the needle loop surface of the knitted fabric to the cool contact value of the sinker loop surface of the knitted fabric exceeds 1.30, the smoothness of the sinker loop surface of the knitted fabric is inferior. As a result, the print on the sinker loop surface of the knitted fabric is poorly printed, and the peeling resistance of the crimping tape may also be reduced. Due to the structure of the loop, the sinker loop surface of the knitted fabric is never better than the smoothness of the needle loop surface of the knitted fabric. Therefore, the cool contact sensitivity value of the sinker loop surface of the knitted fabric is the needle loop surface of the knitted fabric. It is not better than the cool contact value, and the ratio of the cool contact value of the needle loop surface of the knitted fabric to the cool contact value of the sinker loop surface of the knitted fabric is rarely less than 1.00.

The knitted fabric of the present embodiment preferably has a number of courses of 70 to 150 / inch (2.54 cm), a number of wells of 50 to 80 / inch, and a density index of 4000 to 12000. The number of courses of the knitted fabric is more preferably 80 to 130 pieces / inch, still more preferably 90 to 110 pieces / inch. The number of wells in the knitted fabric is more preferably 55 to 70 / inch, still more preferably 55 to 65 / inch. The density index is more preferably 4200 to 10000, still more preferably 4400 to 8000, and particularly preferably 4600 to 6000. The density index is calculated by the following formula (1):
Density index = number of knitted fabric courses (pieces / inch) x number of knitted fabric wells (pieces / inch) (1)
It is a numerical value that is calculated by the above and serves as a guide for a sense of precision. The higher the density index, the higher the sense of precision. When the number of courses of the knitted fabric is 70 / inch or more, the number of wells is 50 / inch or more, and the density index is 4000 or more, the fineness required for smoothness is excellent, the print is good, and the pressure resistance of the crimping tape is good. The peelability is also easy to improve. When the number of courses of the knitted fabric was 150 / inch or less, the number of wells was 80 / inch or less, and the density index was 12000 or less, it was obtained without the need for the use of a high gauge knitting machine or the use of fine yarn. The knitted fabric is not too thin, the burst strength is sufficiently high, and the durability as wear does not become a problem.

The fineness of the inelastic fiber used for the knitted fabric of the present embodiment is preferably in the range of 15 to 200 detex, more preferably 20 to 170 dtex, further preferably 30 to 120 dtex, and particularly preferably 40 to 100 dtex. If the fineness of the inelastic fiber is less than 15 dtex, the burst strength at the time of knitting becomes too low, and the durability as a garment may become a problem. On the other hand, when the fineness of the inelastic fiber exceeds 200 dtex, the use of a low gauge knitting machine becomes indispensable, a suitable density index cannot be obtained, and the desired effect cannot be obtained.

The fineness of the elastic fiber used for the knitted fabric of the present embodiment is preferably in the range of 15 to 80 dtex, more preferably 20 to 60 dtex, and further preferably 30 to 50 dtex. If the fineness of the elastic fiber is less than 15 detx, the required extensibility and recoverability may not be obtained. On the other hand, when the fineness of the elastic fiber exceeds 80 dtex, the basis weight becomes large and the wear may become too heavy.

The knitted fabric of the present embodiment preferably has a basis weight in the range of 50 to 300 g / m ² , more preferably 80 to 200 g / m ² , and further preferably 100 to 170 g / m ² . If the basis weight is less than 50 g / m ² , the feeling of scale and burst strength may deteriorate. On the other hand, if the basis weight exceeds 300 g / m ² , it may be too heavy when worn as wear and hinder the operation.

The knitted fabric of the present embodiment preferably has the longest yarn length of 160 to 240 mm / 100 W (well) among the inelastic fibers used, more preferably 170 to 220 mm / 100 W, and further preferably 190 to 210 mm. / 100W. The yarn length per 100 W was obtained as follows. Mark both ends of 100 continuous knitting loops along the lateral direction (course direction) of the knitted fabric, pull out the thread at the marked part from the knitted fabric, apply a load of fineness x 0.1 g, and its length. To measure.
Among the inelastic fibers used, when the longest yarn length is 160 mm / 100 W or more, the stretchability of the knitted fabric becomes sufficient, the texture is soft, and it tends to be sufficient as wear. On the other hand, when the longest yarn length of the inelastic fibers used is 240 mm / 100 W or less, the inelastic fibers do not emerge on the surface of the knitted fabric, and the smoothness tends to be excellent. In order to keep the yarn length within the above range while making the knitted fabric dense, it is necessary to adjust the density and the yarn length by significantly shrinking the knitted fabric in post-processing such as dyeing.

The single yarn fineness of the non-elastic fiber is preferably 0.3 to 3.0 dtex, more preferably 0.5 to 25 dtex, in order not to inhibit the elasticity of the elastic fiber and to obtain a garment having a soft texture. More preferably, it is 0.8 to 2.3 dtex.

The draft ratio of the elastic fibers of the knitted fabric of the present embodiment is not particularly limited as long as the knitted fabric has an appropriate stretchability and yarn breakage does not occur during knitting, but is in the range of 2.5 to 3.5 times, for example. Is often used.

The knitted fabric of the present embodiment can be knitted with a flat knitting machine or a single circular knitting machine, and is not particularly limited as long as a basis weight and a sense of organization suitable for the purpose can be obtained. The gauge of the knitting machine is also not particularly limited, but it is preferable to arbitrarily select an 18 to 50 gauge knitting machine depending on the application and the thickness of the fiber used, more preferably 24 to 40 gauge, and further. It is preferably 28 to 36 gauge.

The knitted fabric of this embodiment may be put into a dyeing process such as preset, dyeing, and final set after knitting. The processing method may be the same as that of a normal elastic fiber mixed knitted fabric, but in order to achieve the required smoothness, the temperature at the time of presetting, the width-out rate, and the indentation rate in the warp direction should be adjusted. It is preferable to make timely adjustments. As ancillary processing at the dyeing stage, antifouling processing, antibacterial processing, deodorizing processing, deodorizing processing, water absorption processing, moisture absorption processing, ultraviolet absorption processing, weight loss processing, etc., and further post-processing such as calendar processing, embossing processing, wrinkle processing, brushing It can be appropriately applied according to the final required characteristics such as processing, opal processing, and softening processing using a silicon-based softener or the like. In particular, the water absorption process is effective in reducing stickiness when worn as clothing.

In the printing process performed on the knitted fabric of the present embodiment, the method and method are not limited, and a hand printing method, a roller printing method, a screen printing method, a gravure printing method, a transfer printing method, an inkjet printing method, etc. Any of the above methods may be adopted, and it is preferable to select an appropriate method depending on the target pattern, the material to be printed, and the like. Further, as a coloring component, an organic or inorganic pigment (including a metal powder) may be used, and a disperse dye, an acid dye, a cationic dye, a reactive dye, a direct dye, or a fluorescent dye is used according to the material to be printed. Etc. may be used alone or in combination.

When the knitted fabric of the present embodiment is used as clothing, it is possible to bond the knitted fabric and the knitted fabric with a crimping tape without sewing. The crimping tape to be used is not particularly limited, and a crimping tape suitable for the purpose of use may be used as appropriate.

The knitted fabric of the present embodiment can be used, for example, for innerwear, sportswear, outerwear, swimwear, etc. that fit the body.

In the knitted fabric of the present embodiment, for example, when the sinker loop surface of the knitted fabric is used on the outside air side of the garment, the needle loop surface is on the skin side, which is larger than that of the garment in which the sinker loop surface of the normal knitted fabric is used on the skin side. Since the coefficient of friction is low and the cool contact value is high, it is easy to feel smoothness and coolness.

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
Each evaluation in Examples and Comparative Examples was performed as follows.
(1) Dynamic friction coefficient and standard deviation of friction coefficient Tribomaster Type: TL201Ts, a static / dynamic friction measuring machine manufactured by Trinity Lab, is used for measurement. The conditions for measurement are: grinder: patternless type / contact surface 11 mm × 15 mm, measurement load: 3.75 g, friction speed 30 mm / sec, friction distance 100 mm, and reciprocate three times. Friction is started from the knitting start direction to the knitting end direction, and after rubbing 100 mm, the friction direction is reversed and the knitting start direction is rubbed from the knitting end direction. This operation is repeated 3 times, and the dynamic friction coefficient and the standard deviation of the friction coefficient from the knitting start direction to the knitting end direction and the dynamic friction coefficient and the friction coefficient standard deviation from the knitting end direction to the knitting start direction are calculated for 3 times. Use the calculated value of the average.

(2) Water diffusion area Using a micropipette, use a micropipette to dissolve 0.05 g of water or the reactive dye "Sumifix Brilliant Blue" manufactured by Sumitomo Kagaku Co., Ltd. in 100 g of water, under 65% RH. Place 0.1cc polka dots on an acrylic plate in the above environment. A 10 cm x 10 cm sample collected from a fabric that has been humidity-controlled for 24 hours in the same environment is gently placed on the dyeing solution with the measurement surface facing down, and the area where the dyeing solution is diffused after 5 minutes. To measure. The diffusion area is calculated as (π / 4) × (vertical length × horizontal length) from the diffusion length in the vertical direction and the diffusion length in the horizontal direction, assuming that the diffusion area is elliptical.

(3) Contact cooling sensation value 20 ° C x 65% The knitted fabric cut to 8 cm x 8 cm, which was adjusted in humidity in an environment, was used with KES-F7-II manufactured by Kato Tech Co., Ltd., and the cooling base was 20 ° C ± 0. Set to a range of 5 ° C and place the knitted fabric on the cooling base with the skin surface of the knitted fabric facing up. Then, the maximum heat transfer amount (W / cm ² ) when the hot plate of the apparatus heated to the temperature of the cooling base + 10 ° C. is placed on the skin surface of the knitted fabric is measured.

(4) Print placement The following shows the state of the Blind pattern when a dot pattern print is placed on the sinker loop surface of the knitted fabric and the washing process according to the JIS-L-1096-G method is performed 100 times. Visual judgment was made based on the evaluation criteria. There is no problem in practical use with 3 or more according to the following criteria:
5: There are no cracks or peeling of the print.
4: The print is cracked or peeled off from 0 to 20% or less of the total.
3: The print is cracked or peeled off more than 20% and 40% or less of the whole.
2: The print is cracked or peeled off more than 40% and 60% or less of the whole.
1: More than 60% of the prints are cracked or peeled off.

(5) Peeling resistance of pressure-bonding tape Two samples with a width of 50 mm and a length of 150 mm were collected from the prepared knitted fabric, and the sample on the sinker loop surface of one sample and the sample on the needle loop surface of another sample were collected. A crimping tape with a width of 10 mm is attached at a position 10 mm from the end. The sample was washed 100 times according to the JIS-L-1096-G method, set in a tensile tester so as to grasp the entire width of the sample, a load of 14.7 N was applied, and the sample was peeled off after being held for 1 minute. The amount was measured. There is no problem in practical use with 3 or more according to the following criteria:
5: The amount of peeling is 0 mm.
4: The amount of peeling is more than 0 and 2 mm or less.
3: The amount of peeling is more than 2 and 4 mm or less.
2: The amount of peeling is more than 4 and 6 mm or less.
1: The amount of peeling is more than 6 mm.

[Example 1]
Using a 36-gauge single circular knitting machine, a polyurethane elastic fiber 22dtex (A) manufactured from a prepolymer using polytetramethylene glycol for the elastic fiber, and a nylon filament 22dtex20f and a cupra filament 56dtex45f for the non-elastic fiber are temporarily combined. A knitting loop composed of a twisted and mixed 80dtex65f mixed fiber (B) and a nylon filament false twisted yarn 78dtex68f (C), and an alignment of the elastic fiber (A) and the inelastic fiber (B), and the above. The knitting loops composed of the elastic fibers (A) and the non-elastic fibers (C) are alternately arranged in the well direction of the knitted fabric at a ratio of 1: 1 with respect to the mixed fiber (B). , A raw machine of bare tenjiku knitted fabric having a length of 10 mm longer for false-twisted yarn (C) was obtained. The presetting conditions, dyeing conditions, and finishing conditions for dyeing and finishing the raw machine are the same as those for processing a normal polyurethane elastic fiber-blended knitted fabric, with a basis weight of 130 g / m ² and a thickness of 0.43 mm. Knitted fabrics of 81 courses / inch and 56 wells / inch were obtained. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Example 2]
Bare Tenjiku knitting using the same circular knitting machine, elastic fiber, and inelastic fiber as in Example 1 except that the thread length of the inelastic fiber of Example 1 was changed, and the arrangement of the elastic fiber and the inelastic fiber was the same. I got a living machine of the earth. The raw machine was adjusted to have a basis weight of 128 g / m ² , a thickness of 0.41 mm, a course of 90 pieces / inch, and a well of 54 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Example 3]
The same circular knitting machine and elastic fiber as in Example 1 except that a raw machine having the same yarn length of the false twisted yarn (C) was used for the non-elastic fiber mixed yarn (B) of Example 1. , We obtained a raw material for bare woven fabric using non-elastic fibers and having the same arrangement of elastic fibers and non-elastic fibers. The raw machine was adjusted to have a basis weight of 132 g / m ² , a thickness of 0.46 mm, a course of 75 pieces / inch, and a well of 55 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Example 4]
Bare Tenjiku knitting using the same circular knitting machine, elastic fiber, and inelastic fiber as in Example 1 except that the thread length of the inelastic fiber of Example 1 was changed, and the arrangement of the elastic fiber and the inelastic fiber was the same. I got a living machine of the earth. The raw machine was adjusted to have a basis weight of 165 g / m ² , a thickness of 0.53 mm, a course of 96 pieces / inch, and a well of 56 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Example 5]
67dtex65f mixed fiber yarn (B) and nylon filament false twisted yarn 56dtex48f (C), which are composite false twisted blended yarns of nylon filament 22dtex20f and cupra filament 44dtex45f, are used for the inelastic fibers of Example 1, and the respective yarn lengths are adjusted. A raw machine of a bare woven fabric was obtained using the same circular knitting machine and elastic fibers as in Example 1 except for the modification, and the arrangement of the elastic fibers and the non-elastic fibers was the same. The raw machine was adjusted to have a basis weight of 105 g / m ² , a thickness of 0.48 mm, a course of 85 pieces / inch, and a well of 50 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Example 6]
Tenjiku knitted fabric knitted by using only the inelastic fiber mixed yarn (B) and elastic fiber (A) used in Example 5 and aligning the elastic fiber (A) and the mixed fiber yarn (B). I got a living machine. The raw machine was adjusted to have a basis weight of 120 g / m ² , a thickness of 0.42 mm, a course of 92 pieces / inch, and a well of 57 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had good print placement and good peeling resistance of the pressure-bonding tape.

[Comparative Example 1]
A bear that uses the same elastic fibers and inelastic fibers as in Example 1 except that the yarn lengths of the circular knitting machine and the inelastic fibers used in Example 1 are changed, and the arrangement of the elastic fibers and the inelastic fibers is also the same. I got a raw machine of Tenjiku knitted fabric. The raw machine was adjusted to have a basis weight of 134 g / m ² , a thickness of 0.49 mm, a course of 91 pieces / inch, and a well of 45 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had insufficient smoothness on the sinker loop surface, and the print placement and the peeling resistance of the crimping tape were problems in the practical range.

[Comparative Example 2]
Using a 32-gauge single circular knitting machine, polyurethane elastic fiber 22dtex (A) manufactured from prepolymer using polytetramethylene glycol for elastic fiber, cupra filament yarn (B) and polyester filament temporary for non-elastic fiber The twisted yarn 56dtex72f (C) has the inelastic fibers (C) on the needle loop surface of the knitted fabric, and the inelastic fibers (B) and the inelastic fibers (C) on the sinker loop surface of the knitted fabric. A raw machine of a bare tenjiku knitted fabric having a three-layer structure in which elastic fibers (A) were arranged in the intermediate layer of the knitted fabric, which were alternately arranged in the well direction at a ratio of 1: 1 was obtained. The raw machine was adjusted to have a basis weight of 135 g / m ² , a thickness of 0.46 mm, a course of 77 pieces / inch, and a well of 50 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had insufficient smoothness on the sinker loop surface, and the print placement and the peeling resistance of the crimping tape were problems in the practical range.

[Comparative Example 3]
A bear that uses the same elastic fibers and inelastic fibers as in Example 1 except that the yarn lengths of the circular knitting machine and the inelastic fibers used in Example 1 are changed, and the arrangement of the elastic fibers and the inelastic fibers is also the same. I got a raw machine of Tenjiku knitted fabric. The raw machine was adjusted to have a basis weight of 118 g / m ² , a thickness of 0.43 mm, a course of 87 pieces / inch, and a well of 40 pieces / inch in the same dyeing step as in Example 1 to obtain a knitted fabric. The results are shown in Table 1 below. The obtained knitted fabric had insufficient smoothness on the sinker loop surface, and the print placement and the peeling resistance of the crimping tape were problems in the practical range.

The single knitted fabric of the present invention has improved smoothness of the sinker loop surface, and the difference in the coefficient of dynamic friction between the sinker loop surface and the needle loop surface is small, so that it is easy to place a print on the front and back of the knitted fabric. By doing so, the convenience of the knitted fabric is improved, and the peeling resistance of the crimping tape is also improved. Therefore, the single knitted fabric of the present invention can be suitably used for clothing such as sportswear, casual wear, and underwear with enhanced design.

Claims

It is a single knitted fabric made of non-elastic fibers and elastic fibers, and has a dynamic friction coefficient of 0.500 or less when the sinker loop surface of the knitted fabric is rubbed from the knitting start direction to the knitting end direction. The difference between the dynamic friction coefficient when rubbing from the knitting start direction to the knitting end direction and the dynamic friction coefficient when rubbing from the knitting end direction to the knitting start direction of the needle loop surface and sinker loop surface is 0.13 or less, and , A knitted fabric characterized in that the ratio of the dynamic friction coefficient of the needle loop surface to the dynamic friction coefficient of the sinker loop surface when rubbing from the knitting start direction to the knitting end direction is 0.70 to 1.00.
The standard deviation of the friction coefficient when rubbing from the knitting start direction to the knitting end direction of the sinker loop surface is 0.500 or less, and the standard deviation of the friction coefficient when rubbing from the knitting start direction to the knitting end direction of the sinker loop surface. The knitted fabric according to claim 1, wherein the difference between the standard deviations of the friction coefficient when rubbing from the knitting end direction to the knitting start direction is 0.200 or less.
Claimed that the difference between the standard deviation of the friction coefficient when rubbing the needle loop surface from the knitting start direction to the knitting end direction and the standard deviation of the friction coefficient when rubbing from the knitting end direction to the knitting start direction is 0.025 or less. Item 1. The knitted fabric according to Item 1 or 2.
The knitted fabric according to any one of claims 1 to 3, wherein the ratio of the water diffusion area of the needle loop surface to the water diffusion area of the sinker loop surface of the knitted fabric is 1.00 to 1.10.
The knitted fabric according to any one of claims 1 to 4, wherein the ratio of the cool contact value of the needle loop surface of the knitted fabric to the cool contact value of the sinker loop surface is 1.00 to 1.30.
The knitted fabric according to any one of claims 1 to 5, wherein the number of courses is 70 to 150 / inch, the number of wells is 50 to 80 / inch, and the density index is 4000 to 12000.
The knitted fabric according to any one of claims 1 to 6, wherein the longest inelastic fiber among the inelastic fibers contained in the knitted fabric has a yarn length of 160 to 240 mm / 100 w.
Clothing containing the knitted fabric according to any one of claims 1 to 7.
The garment according to claim 8, wherein the needle loop surface of the knitted fabric is arranged on the skin side.
The inelastic fiber includes a thread containing a cellulose-based filament thread and a thread made of a synthetic fiber, and the two types of threads are alternately arranged in the well direction, and the thread length of the thread made of the synthetic fiber is arranged in a living machine. The method for producing a knitted fabric according to any one of claims 1 to 7, wherein the yarn length is 5 mm to 20 mm longer than the yarn length of the yarn containing the cellulose-based filament yarn.