JPH1088446A - Uniform - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a uniform having a soft feeling, excellent in body, stiffness and durability, capable of imparting a comfortable microclimate within clothing and suitable for a working wear, etc., by including a woven fabric formed by using a specific multilayered structure yarn as a warp. SOLUTION: This uniform formed of a woven fabric obtained by using a multilayered structure yarn having 5-25'S/1 thickness at least as a warp, and the multilayered structure yarn comprising hydrophobic fiber staples having deniers of <=1 de and arranged at the most inner layer, a hydrophilic fiber staples arranged at the most outer layer, and a middle layer including the hydrophobic fiber staples and hydrophilic fiber staples and arranged between the most inner layer and the most outer layer. Further, the multilayered structure yarn includes filaments dispersed and mixed in the middle layer and the most outer layer, and the hydrophobic fiber staples occupies 5-20wt.% in the multilayered structure yarn. Moreover, the multilayered structure yarn is preferably used as both warp and weft and the cover factors of both warp and weft are each 20-50 in the case of a plane fabric and 30-80 in the case of twill.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a uniform for comfortable and comfortable working clothes in a construction site or outdoors as a working wear at a construction site or outdoors.

[0002]

2. Description of the Related Art Conventionally, as a yarn used for a uniform fabric, a cotton yarn of 100% natural fiber, a blended yarn of natural fiber and polyester fiber, and a spun yarn of 100% polyester fiber have been often used. Among them, blended yarns of natural fibers and polyester fibers have been frequently used because of their excellent dimensional stability. However, the thickness of the staple of the polyester fiber in the blended yarn is 1.
The fineness was 2 to 2.5 denier. The materials used are not determined from the viewpoint of comfort to sweat, but are determined based on the appearance such as the feeling and the coloring. By the way, it is necessary for the uniform to maintain good comfort in a state with some exercise, not in a state with extremely intense exercise unlike sports clothing. However, even in the case of Uniform, durability, dimensional stability, tension, waist, and soft hand are required, and it is necessary to satisfy these required characteristics. Was unsatisfactory.

Further, as a conventional material for clothing, Japanese Patent Application Laid-Open
As shown in JP-B-169534, a polyester false twisted yarn is formed on the innermost layer, and 1.5 d × 38 mm around the yarn.
In the polyester staple, there is also a thread surrounded by cotton around it, but in terms of comfort and tension, waist,
It wasn't enough yet.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a uniform, comfortable and comfortable durable body which is excellent in tension, waist, soft texture and durability.

[0005]

The present invention employs the following means to solve the above-mentioned problems. That is, the present invention provides a Yunifuomu consisting woven multilayer structured yarn is used in at least the warp is thickness is 5~25 ^'S / 1 (English expression cotton count), multilayered yarn fineness The staples of hydrophobic fibers of 1 denier or less are arranged in the innermost layer, the staples of hydrophilic fibers are arranged in the outermost layer, and the staples of the hydrophobic fibers and the hydrophilic fibers are between the innermost layer and the outermost layer. There is an intermediate layer containing staples, and the filaments are mainly formed by being dispersed and mixed in the intermediate layer and the outermost layer, and the staples of the hydrophobic fibers occupy 5 to 20% by weight in the multilayer structural yarn. A uniform characterized by the following.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the multilayer structure yarn is used for both the warp and the weft, and the cover factor may be 20 to 50 for a plain fabric and 30 to 80 for a twill fabric. This is a preferred embodiment. Hereinafter, the present invention will be described in detail. In the present invention, a thick yarn is used to give a waist to a uniform and to give a waist, and the structure of the yarn is made appropriate from a climatic point of view in clothes to eliminate inferior comfort due to the use of the thick yarn. It is based on Normally, Uniform uses a medium-count yarn in order to obtain a soft texture in a normal blended yarn, so that it is stretched and the waist is poor. Therefore, in the present invention, 5 of chubby yarn ^'S / ^1~25' S
/ 1 (English cotton count) to stretch and give a waist. Here, if the thickness is less than 5 ^'S / 1, the tension becomes too strong, the waist becomes too strong, and the soft feeling is poor, which is not preferable. On the other hand, 25 'tension to be a fine count more than the ^S / 1, unfavorably waist becomes poor.

[0007] By making the yarn thicker, it can be tightened and the waist can be obtained, but the comfortableness and soft feeling are impaired.
Therefore, it is necessary to devise the structure of the yarn. In the multilayer structure yarn according to the present invention, the staple fibers disposed in the innermost layer have a fineness of 1 denier or less, preferably 0.1 denier or less.
It must be a hydrophobic fiber of 8 denier or less, more preferably 0.1 to 0.8 denier. This utilizes the capillary action of the finer denier hydrophobic fibers in the innermost layer to transfer liquid-phase sweat to the outermost layer on the skin side and to the innermost layer through the middle layer, thereby removing the heat of the liquid-phase sweat itself and vaporizing it. To do that. In order to effectively generate such a capillary phenomenon, the fineness needs to be 1 denier or less. If it exceeds 1 denier, the transfer of sweat becomes difficult to occur.

The hydrophobic fibers are used because the fibers themselves do not retain perspiration, but retain perspiration in the interstices of the fibers to remove heat from the perspiration itself and vaporize. Here, the hydrophobic fiber means the official moisture content at 65% RH and 20 ° C. (JIS
L-1096) is less than 5%, and has a difference of 1% or more in the official moisture regain with respect to the hydrophilic fibers described below. For example, polyester fiber, acrylic fiber, polyamide fiber, vinyl chloride fiber and the like are included.

[0009] The staples are limited in order to generate more capillary action. From such a viewpoint, the average fiber length of the staple is preferably in the range of 20 to 60 mm, and its form is more preferably equal length cut than varicut. Further, the ratio of the staples of the hydrophobic fibers is preferably 5 to 20% by weight. This is for causing the capillary phenomenon to occur smoothly. 5
If the content is less than 10% by weight, the capillary phenomenon hardly occurs, and 2
If it exceeds 0% by weight, it becomes difficult to quickly absorb sweat, which is not preferable.

Next, the staple disposed in the innermost layer must be a hydrophilic fiber. The reason is that the sweat (both gas phase and liquid phase) from the human body is quickly and largely absorbed by the hydrophilic fibers on the skin side. Here, the hydrophilic fiber is 65% R
H, official moisture content at 20 ° C (JIS L-109
6) is 5% or more of fibers, for example, natural fibers such as cotton, hemp and wool, and regenerated fibers such as viscose rayon, cuprammonium rayon and polynosic. The fineness of the hydrophilic fiber is preferably as small as possible, but preferably 1 to 2 denier, more preferably 1.01 to 1
1.5 denier.

The reason why the hydrophilic fibers are limited to staples is to provide a suitable fluff to improve the texture. Here, the ratio of the staples of the hydrophilic fibers is preferably 50 to 80% by weight. If it is less than 50% by weight, it becomes difficult to absorb a large amount of sweat, while if it exceeds 80% by weight, it becomes difficult to effectively generate capillary action.

Further, the intermediate layer between the innermost layer and the outermost layer includes staples of hydrophilic fibers and staples of hydrophobic fibers. The intermediate layer functions as a cushion and promotes the transfer of liquid and gaseous sweat. Here, the hydrophobic fiber and the hydrophilic fiber are the innermost layer already described,
It is the same as those of the outermost layer.

Further, in the present invention, it is preferable that the filament is mainly present in the intermediate layer and the outermost layer in order to further exert the capillary phenomenon of the fine denier hydrophobic staple in the innermost layer. In order to take such an arrangement, it is preferable to set the voltage at the time of fiber opening to 3 KV or more. In addition, the form in which the filament is dispersed and mixed in any of the innermost layer, the intermediate layer, and the outermost layer, and the form in which the filament is mainly dispersed and mixed in the outermost layer and the intermediate layer, respectively, are in the longitudinal direction of the yarn. Are preferably alternately present in order to make the innermost layer of the hydrophobic staple exhibit the capillary action. The fact that the filaments are dispersed and mixed also leads to an improvement in the strength and uniformity of the multilayered yarn according to the present invention. The term “dispersion” as used herein refers to the state of the filament when the multifilament yarn is spread by electricity, air, or the like, and is superimposed on a staple group.

[0014] The filament is preferably a hydrophobic fiber, in order to more effectively generate a capillary phenomenon. Said hydrophobic fibers have the same meaning as already mentioned. The proportion of the filament is preferably 15 to 30% by weight. When the amount is less than 15% by weight, the strength and the degree of uniformity decrease, and when the amount exceeds 30% by weight, the balance of the multilayer structure yarn as a whole is lost, which is not preferable.

Now, the mechanism of sweat absorption and divergence in the multilayer yarn according to the present invention will be briefly described. First, the hydrophilic fibers in the outermost layer on the skin side quickly absorb a large amount of sweat (both gas phase and liquid phase) from the human body, and due to the capillary action of the finer denier hydrophobic fibers in the innermost layer, Sweat moves through the middle layer to the innermost layer, and the sweat in the liquid phase in the innermost layer takes away the heat of the sweat itself and vaporizes, and due to the water vapor pressure difference between the skin side and the outside air from the gaseous phase Then, the hydrophilic fibers in the outermost layer on the outside air side are successively absorbed through the intermediate layer. Then, due to the difference in water vapor pressure between the skin side and the outside air side, the vapor-phase sweat passes through the outermost layer of hydrophilic fibers and moves to the outside air side outermost layer. It wicks sweat quickly.

Here, a method for manufacturing a uniform is described. First, a multilayer structure yarn is manufactured. A roving having staples of hydrophobic fibers having a fineness of 1 denier or less in the inner layer and staples of hydrophilic fibers in the outer layer is prepared. For example, a sliver consisting of staples of hydrophobic fibers and a sliver consisting of staples of hydrophilic fibers are separately prepared, and then a sliver of hydrophobic fibers is overlaid with a roving machine so as to be located at the center of the sliver of hydrophilic fibers. Feed to produce rovings. After that, when spinning a spun yarn with a spinning machine using this roving yarn, the multifilament yarn is opened by an electric method of applying a voltage of 3 KV or more while the upstream is immediately upstream of the front roller of the spinning machine. The multilayer structure yarn can be obtained by supplying and spinning over a roving yarn that has been drafted, that is, a fleece.

Next, the multilayer structure yarn thus obtained is woven using at least a warp, preferably both a warp and a weft. The use of both is preferable from the viewpoint of the climate in clothes. When used only for the warp, a polyester cotton mixed yarn or a polyester / polynosic mixed yarn may be used for the weft. In addition, the cover factor of the warp and the weft is also an important requirement.
A range of 50 is preferable, and a range of 30 to 80 is preferable for a twill fabric.

Here, the cover factor CF is expressed as CF =
F (book / in) ・ N _F ^-1/2 + W (book / in) ・ N _w ^-1/2
Indicated by F is the warp density (book / in), and N _F is the warp count. W is the weft density (book / in), and N _W is the weft count.

Now, the fabric woven by a predetermined cover factor is dyed in the same bath or a separate bath, and is then made into a uniform by a usual process as usual.

[0020]

【Example】

Examples 1 to 3 A sliver composed of polyester fiber and cotton fiber of 0.7 denier × 38 mm (equal length) was manufactured, and both slivers were set on a roving machine. At this time, a polyester fiber sliver is supplied from the middle roller and the back roller to the center of the cotton fiber sliver supplied from the back roller, and the innermost layer is made of polyester fiber staples, and the outermost layer is made of cotton fiber. A roving with staples was made and then set on a spinning machine. At this time, a polyester multifilament yarn (10 ^'S / 1,
16 ^'S / 100 denier 48 filament for 1, 20
^'While the electrical opening 50 denier 24 filament) for S / 1 (3KV), is supplied to the upstream immediately before the front roller ^{10' S / 1,16 'S /} 1,20' S / 1 of multilayer structure Yarn was manufactured. In addition, the staple of the hydrophobic fiber, the staple of the hydrophilic fiber, and the weight% of the filament in the multilayer structure yarn are used.
The ratios are 13:68:19, 12:58:30, 1 respectively.
3:68:19. Power is 1120g each,
775 g and 505 g.

[0021] ^{10 'S / 1,16' S /} 1,20 'S / 1 of the multilayer structured yarn warp, warp each indicating with Table 1 in both the weft, a twill 2/1 in weft density The fabric was woven and dyed in a single bath with a disperse dye to produce a fabric for Uniform. Then
The physical properties of these fabrics were evaluated and are shown in Table 1.

[0022]

[Table 1]

The evaluation method in Table 1 was as follows. I. Hand 10 sensory inspectors judged by touch. B. Tension, waist Also determined by 10 sensory inspectors. Tension and waist are represented by ◎, presence is represented by ○, slight presence is represented by Δ, and poor is represented by ×. C. Maximum simulated skin temperature humidity in clothing, equilibrium clothing humidity, clothing climate simulation device (Japanese Patent Publication No. 1-19098)
Publication No.). The environmental conditions of the in-clothes climate simulation apparatus were set to 20 ° C. and 65% RH.

Conventional Example 1 A staple of polyester fiber of 1.4 denier × 38 mm (equal length) and a cotton fiber and a cotton fiber were used in a weight ratio of 33:67.
No. 40 ^'S / 1 (English cotton count) blended yarn was manufactured, and a 2/1 twill fabric was woven at a warp density of 125 yarns / in and a weft yarn density of 65 yarns / in, in the same manner as in Examples. The physical properties of the fabric were measured. The results are shown in Table 1.

[0025] Conventional Example 2 20 cotton composition of Comparative Example 1 ^'spun S / 1 (the English expression cotton count), the warp density of 110 / in, weaving the twill 2/1 in weft density 56 present / in Then, the physical properties of the cloth were measured in the same manner as in the examples. The results are shown in Table 1.

The following was confirmed from Table 1. Example 1
No. 3 satisfied the comfortable humidity (50 ± 10% RH) in the clothes, and exhibited a firm feeling, full waist, and soft feeling. On the other hand, Conventional Examples 1 and 2 were far from comfort. Conventional Example 1 was slightly soft, but lacked tension and waist, and Conventional Example 2 had tension and waist but hard feeling.

[0027]

As described above, the uniform according to the present invention has a remarkable effect that it is tight, rich and waist, has a soft feeling, and a comfortable climate in clothes can be obtained. It is particularly suitable for use as working wear. .

Claims (3)

[Claims] 1. A multilayer structured yarn is a thickness is 5 to 25 ^'S / 1 is a Yunifuomu consisting fabrics woven used in at least the warp, the multilayer structured yarn is hydrophobic fineness below 1 denier The staples of fibers are arranged in the innermost layer, the staples of hydrophilic fibers are arranged in the outermost layer, and an intermediate layer including staples of hydrophobic fibers and staples of hydrophilic fibers is provided between the innermost layer and the outermost layer. Uniform, wherein the filament is mainly formed by being dispersed and mixed in the intermediate layer and the outermost layer, and the staples of the hydrophobic fibers occupy 5 to 20% by weight in the multilayer structure yarn. 2. The uniform according to claim 1, wherein the multilayer structure yarn is used for both a warp and a weft. 3. The uniform according to claim 1, wherein the cover factor of both the warp and the weft is 20 to 50 for a plain woven fabric and 30 to 80 for a twill woven fabric.