JP5346331B2 - Fabrics and textiles without stickiness - Google Patents

Description

  The present invention relates to a fabric that does not have a wet feeling (stickiness) on a surface that contacts the skin side even if a large amount of sweat is applied, and a textile product using the fabric.

In general, clothes such as sportswear absorb unpleasant feeling such as a sticky feeling and a feeling of cooling after exercise because the clothes absorb sweat caused by exercise when worn.
As a method for preventing such discomfort, it is effective to transfer sweat from the skin side to the front side of the clothes and not leave moisture on the skin side. Accordingly, many fabrics have been proposed in which the yarn type to be used, the single yarn fineness, cross-sectional shape, fabric density, and the like of the yarn are different on the knitted fabric front side and the back side (see Patent Documents 1 to 5 below).
However, each of the fabrics disclosed in Patent Documents 1 to 5 has a drawback that the structure and the basis weight are restricted.

  Although the surface of the fabric that is in contact with the skin surface has been proposed to be water repellent on the entire surface, this does not improve the feeling of stickiness because sweat is not absorbed from the skin surface.

On the other hand, Patent Document 6 proposes that a water repellent process in which an unprocessed part is partially provided on the skin side surface is performed by post-processing, and sweat is absorbed through the unprocessed part.
However, since the unprocessed portion is too narrow and the absorption capacity by the hydrophilic fiber is not sufficient, satisfactory stickiness reduction has not been achieved.

Japanese Patent No. 3724190 Japanese Patent No. 3701872 JP 2001-81652 A JP 2004-190151 A JP 2010-236131 A Japanese Patent Laid-Open No. 7-42075

  In view of the above, the problem to be solved by the present invention is that when used on the skin surface, it quickly absorbs even if a large amount of sweat perspires, and moves the sweat perspiration to the side opposite to the skin surface, It is to provide a fabric without a sticky feeling and a fiber product using the fabric by suppressing rewetting to the skin surface.

As a result of earnestly researching and repeating experiments to achieve the above-mentioned problems, the present inventors have found that the above-mentioned problems can be achieved by giving the following characteristics to the surface of the fabric, and the present invention has been completed. It came to do.
That is, the present invention is as follows.

[1] Yes on one surface a plurality of island-shaped portions having a water absorption in the Umijo sites having water repellency, a fabric composed of synthetic fiber, the area per island-like portions one location There is a 0.79 ~5.0mm ^2, Ri total area ratio is less than 20% der of island-shaped portions in the surface, a island-like sites like diameter circle 1Mm～2.5Mm, and, The surface is dotted with polka dots in the sea-like region, and the contact cooling sensation of the surface having the sea-like region and the island-like region when applied with 200 g / m ² moisture is 300 W / m ² · ° C. or less. The fabric described above.

[2] The fabric according to [1] , wherein the entire other surface of the fabric has water absorption.

[3] The fabric according to [1] or [2] , wherein a part of the chemical fiber is a polyester having a W- shaped cross section.

[4] A group consisting of sports clothing, inner clothing, and bedding bedding, wherein the surface having the sea-like portion and the island-like portion of the fabric according to any one of [1] to [3] is used on the skin side. More selected textile products.

  According to the present invention, there are provided a fabric that does not feel sticky even when a large amount of perspiration occurs when worn, and a fiber product using the fabric.

It is the schematic of the surface which has the several island-like site | part which has water absorption in the sea-like site | part which has water repellency of the fabric which concerns on this invention.

Hereinafter, the present invention will be described in detail.
In the fabric of the present invention, one surface constituting the fabric has a plurality of island-like portions having water absorption in a sea-like portion having water repellency, and the area per one of the island-like portions is 0.00. a 5～5.0Mm ^2, and the total area ratio of the island-shaped region in said surface, characterized in that less than 20%.
Such a surface having a plurality of island-like portions (hereinafter also referred to as water-absorbing portions) having water absorption in a sea-like portion having water-repellent properties (hereinafter also referred to as water-repellent portions) is used as a skin in a textile product. By using it on the surface that contacts the skin (hereinafter also referred to as the skin surface), sweating during wearing can be quickly moved from the water-absorbing part to the surface opposite to the skin surface, and wetting back to the skin surface can be suppressed. In addition, an excellent effect is exhibited in eliminating the sticky feeling.
If the area per island part is less than 0.5 mm ² , the water absorption capacity is insufficient, and the sticky feeling cannot be eliminated. On the other hand, if the area is larger than 5.0 mm ² , the total area ratio of island parts is 20 If it exceeds 50%, the water absorption capacity is sufficient, but the water absorption part becomes large, and the sticky feeling due to rewetting is not eliminated. Area per the island shaped portion one place, preferably 0.78～3.14Mm ^2, total area ratio of the island-shaped portions in the surface is preferably less than 15%.

  The shape and size of the island portion are not particularly limited, and various shapes such as a polygon such as a circle, an ellipse, a triangle, and a rectangle, a star shape, an H shape, a W shape, and an X shape are applicable. However, in order to exhibit the maximum water absorption effect in a limited area, a circular shape, for example, a circular shape having a diameter of 1.0 to 2.5 mm is preferable.

The interval between the island-shaped parts and the arrangement method are not particularly limited, but it is preferable that the island-shaped parts are arranged as uniformly as possible within a range that satisfies the area per one island-like part and the total area ratio. Although there may be a portion where a plurality of island-like parts are arranged without being spaced apart, it is preferable that the island-like part is surrounded by a sea-like part.
In order to form such a partial water absorption site, for example, one side surface of a fabric composed of fibers having water absorption may be water-repellent processed into a pattern lacking a portion corresponding to an island-shaped site. .
The water absorption performance of the other surface is not particularly limited, but the other surface preferably has water absorption so that moisture can move quickly from the water absorption portion of the surface having the water repellent portion and the water absorption portion. It is more preferable that has water absorption.

  The portion having water absorption in the fabric may be composed of fibers having a water absorption function, and may be subjected to water absorption during post-processing. Although the water absorption / water repellency standard in the present invention is not particularly limited, it is preferable that the water absorption rate by the water absorption measurement method described later is 3 minutes or more at the water repellent site and within 1 minute at the water absorbent site.

Fabric of the present invention, the surface having the water-repellent portion and the water absorption unit, it is preferable that cool contact sensitive at 200 g / ^{m 2} moistening is not more than 300W / ^{m 2} · ℃, more preferably 260 W / ^{m 2} · It is below ℃. When the contact cooling sensation exceeds 300 W / m ² · ° C., the feeling of stickiness is remarkably felt.
A thermolab II manufactured by Kato Tech Co., Ltd. is used to measure the contact cooling sensation at the time of applying 200 g / m ² moisture. This apparatus measures the amount of heat transferred when a heated hot plate is placed on a sample. As a specific measurement method, a sample used for measurement is conditioned at 20 ° C. and 65% RH for 24 hours, and then sampled to 8 cm × 8 cm, with the surface corresponding to the skin side of the knitted fabric facing upward. Put. The maximum heat transfer at the moment when water corresponding to 200 g / m ² was sprayed on this sample and a hot plate preheated to 30 ° C. in an environment of 20 ° C. and 65% RH was placed within about 10 seconds. Measure the amount.

The state in which 200 g / m ² of moisture is applied is a condition that assumes the amount of moisture when exercised to sweat gently. If moisture remains on the skin side of the knitted fabric, the thermal conductivity of water is high, so a lot of heat is taken away from the hot plate, and the feeling of contact cooling increases. That is, a sample having a large contact cooling sensation has a large stickiness. According to our knowledge, the contact cooling sensation that particularly gives a sticky feeling is higher than 300 W / m ² · ° C. by the above measurement method. In the prior art, it was difficult to improve the contact cooling sensation when a large amount of moisture was applied as in this measurement, but in the present invention, it is possible to obtain a fabric with improved stickiness even in the above measurement. it can.

The method for forming the water-repellent part in the fabric of the present invention is not particularly limited, and a fluorine-based or silicon-based water-repellent agent such as a rotary screen printing method, a flat screen printing method, a roller printing method, an ink jet printing method, etc. The pattern may be printed using a method that lacks a portion corresponding to the island-shaped portion.
At that time, it is necessary to adjust the components, viscosity, pressure, and speed of the paste containing the water repellent so that the water repellent does not penetrate to the other surface and does not penetrate so as to block the island portion.
The penetration in the thickness direction is preferably adjusted to about ½ of the thickness of the entire fabric.

  Although the fiber which comprises the fabric of this invention is not specifically limited, From the point of a fabric performance or the effect of a water-repellent process and a water absorption process, it is preferable that it is a chemical fiber. Examples of chemical fibers include polyester fibers, regenerated cellulose fibers, nylon fibers, polyurethane fibers, and the like, and a plurality of these may be used in combination. Further, if necessary, it may include a fiber having a see-through effect and a fiber having other functionality, but it includes a polyester-based fiber having a W-shaped cross section on the surface constituting the island-shaped portion having water absorption, The effect of sucking and transporting moisture at the island-like site is particularly preferable because of its large effect.

The knitted fabric made of the above-mentioned chemical fiber is not particularly limited in terms of structure, basis weight, thickness and the like, and any knitted fabric may be used as long as it can be used for clothing.
The fabric of the present invention has a sticky feeling by using the surface side having a plurality of island-like parts having water absorption in the sea-like part having water repellency as described above for the surface (skin surface) in contact with the skin. A favorable effect can be exhibited as a non-textile product. Examples of the textile product of the present invention include sports clothing, inner clothing, and bedding.

EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
Various evaluation test methods in the examples are shown below.
(1) Shape, size, and arrangement of island-like parts The island-like parts were identified by visual observation or by coloring only the water-absorbing part (or water-repellent part), and the shape, dimensions, number, arrangement state, etc. were measured.

(2) Contact cooling sensitivity Thermolab II manufactured by Kato Tech was used. This apparatus measures the amount of heat transferred when a heated hot plate is placed on a sample. As a specific measurement method, a sample used for measurement is conditioned at 20 ° C. and 65% RH for 24 hours, and then sampled to 8 cm × 8 cm, with the surface corresponding to the skin side of the knitted fabric facing upward. Put. The maximum heat transfer at the moment when water corresponding to 200 g / m ² was sprayed on this sample and a hot plate preheated to 30 ° C. in an environment of 20 ° C. and 65% RH was placed within about 10 seconds. The amount was measured.

(3) Water absorption rate It measured by JIS L-1097 5.1.1 (drop method).
(4) Wear test Wearing the shirt obtained by making the fabric obtained in the example such that the surface having the water-repellent part and the water-absorbing part is on the skin side, put it in an artificial climate room of 28 ° C. × 65% RH environment. After resting for 10 minutes, a treadmill ORK-3000 manufactured by Otake / Route Industry Co., Ltd. was used for 30 minutes at a speed of 8 km / h, and then rested again for 10 minutes. The feeling of stickiness and coldness during rest after running exercise was sensorially evaluated according to the following evaluation criteria:
○: No sticky feeling, no cold feeling ×: No sticky feeling, cold feeling

[ Reference Example 1]
Using a 28GG circular knitting machine, using 84dtex / 30f W cross-section polyester processing yarn and 84dtex / 36f polyester round cross-section processing yarn on the cylinder side, and using 84dtex / 72f polyester fludal processing yarn on the dial side After the cylinder-side mesh reverse structure was knitted, polyester dyeing, water absorption processing and water washing were performed at 130 ° C. with a liquid dyeing machine, followed by normal finishing such as antistatic processing and drying.
On the mesh side of this knitted fabric, paste resin containing a water repellent warp KF200 (7%), thickener Techcoat KF (5%), anti-washing durability processing agent, crosslinking agent, catalyst, etc. A rotary screen with a pattern in which circular islands of 0.80 millimeters and an area of 0.50 square millimeters are arranged approximately evenly in 28 columns x 34 rows in a 100 mm square. It was applied to the entire surface of the product, dried, baked, washed with water, and finished. The total area ratio of the island-like portions having water absorption on the water repellent surface was 4.8%.
The feeling of contact cooling of the obtained knitted fabric was 282 W / m ² · ° C., and in the wearing test of the shirt obtained from the knitted fabric, it was a good one without stickiness or cooling feeling. The surface structure of the obtained fabric and the performance evaluation results are shown in Table 1 below.

[Examples 2 to 6]
The same knitted fabric, the same dyeing, and water-absorbing fabric as in Reference Example 1, all of which are the same as in Reference Example 1 except that the size and length and width of the island-shaped parts are changed as shown in Table 1 below. A dough was obtained by printing according to the prescription. The fabrics obtained in Examples 2 to 6 were good without stickiness or chilliness. The surface structure of the obtained fabric and the performance evaluation results are shown in Table 1 below.

[Example 7]
The same knitting structure as in Reference Example 1 except that a 28 GG circular knitting machine was used and all the 84 dtex / 36 f polyester round cross-section processed yarn was used on the cylinder side without using a 84 dtex / 30 f W cross-section polyester processed yarn. Dyeing and water absorption processing were performed, and the same pattern as in Example 4 was printed. The contact knitting feeling of the obtained knitted fabric was 297 W / m ² · ° C., which was slightly higher than that of the knitted fabric of Example 4, but even in the wearing test, the knitted fabric was good without stickiness or cooling feeling. The surface structure of the obtained fabric and the performance evaluation results are shown in Table 1 below.

[Comparative Examples 1-4]
Using the same dyed finished fabric as in Example 1, only the printed pattern was changed as shown in Table 1 below, and rotary printing was performed to evaluate the performance. The results are shown in Table 1 below. The feeling of contact cooling was great, the feeling of cooling was also strong, and the feeling of stickiness was strong.

  ADVANTAGE OF THE INVENTION According to this invention, the fabric which does not have a sticky feeling even if it sweats a lot at the time of wear is obtained, and it can utilize suitably for textiles, such as clothing, such as sports clothing and inner clothing, and bedding.

DESCRIPTION OF SYMBOLS 1 One surface of fabric 2 Sea-like part which has water repellency 3 Island-like part which has water absorption

Claims (4)

To have a plurality of island-shaped portions having a water absorption in the Umijo sites having water repellency on one surface, a fabric composed of synthetic fibers, the area per island-like portions one location 0. 79 ～5.0Mm ^2, Ri total area ratio is less than 20% der of island-shaped portions in the surface, the island-like region is a circular shape with a diameter 1Mm～2.5Mm, and該海shape The surface is dotted with polka dots, and the contact cooling sensation at the time of applying moisture of 200 g / m ^{2 on the} surface having the sea-like part and the island-like part is 300 W / m ² · ° C. or less. Said fabric. The fabric according to claim 1, wherein the entire other surface of the fabric has water absorption. The fabric according to claim 1 or 2 , wherein a part of the chemical fiber is a polyester having a W- shaped cross section. It is selected from the group consisting of sports clothing, inner clothing, and bedding bedding, wherein the surface having the sea-like portion and the island-like portion of the fabric according to any one of claims 1 to 3 is used on the skin side. Fiber products.

Images