KR100518747B1 - A 3-Layer Structure Quick Dry Textile Sheet - Google Patents

Abstract

The present invention is a fiber sheet having an absorption quick-drying function composed of a three-layered structure having a water absorption layer (1: back layer), a water transition layer (2: interlayer), and a water diffusion layer (3: surface layer), and the water absorption layer (1) is circular. Polyolefin-based untwisted yarn such as polyethylene having a cross-sectional structure, and the moisture transfer layer (2) is polyester heterosection cross-linked twisted yarn, and the water diffusion layer (3) contains hydroxyl group (-OH). It consists of shaped cross section twisted yarn. In addition, the water absorbing layer (1), the water transition layer (2), the water diffusion layer (3) is composed of a dense density sequentially and is characterized in that the specific surface area of the yarn is also large.

The present invention is excellent in the fluidity of the water from the back surface to the various sports clothes and beddings.

Description

 Absorption quick-drying textile sheet having a three-layer structure {A 3-Layer Structure Quick Dry Textile Sheet}

The present invention relates to a fiber sheet having an absorption quick-drying function composed of a three-layer structure in which a water transition layer (interlayer: 2) is present between a water absorption layer (back layer: 1) and a water diffusion layer (surface layer: 3). The present invention relates to a fibrous sheet having a dense density, a high process moisture content, and an increase in specific surface area of yarn so as to easily move from the water absorbing layer to the water transferring layer to the water diffusion layer.

In Japanese Unexamined Patent Application Publication No. 3-213546 (September 18, 1991), technical details regarding an absorbent sheet composed of a fiber structure having a high density portion and a low portion are proposed. The technique is intended to transfer moisture from the back layer to the surface layer using only the difference in density, and its function is limited in sports clothes requiring a large amount of exercise.

On the other hand, Korean Patent Application Publication No. 2002-12828 (published on Feb. 20, 2002) discloses a technical description of a double-woven circular knitted fabric composed of a backing layer made of polyolefin false twisted yarn and a surface layer made of polyester release cross-section yarn. Since the layer is composed of polyolefin false twisted yarn, the false twisted yarn has a larger specific surface area than that of the filament yarn, which hinders the fluidity of the transfer to the surface layer. In addition, since there is no medium capable of transferring moisture between the back layer and the surface layer, sweat stays on the back layer during exercise, and there is no density difference between the back layer and the surface layer.

In addition, the patented technology of "absorption quick-drying fabric using process moisture content and density difference" proposed by the inventor (application number 1-1-2003-5095818-69) has a polyester release cross-section yarn on the back layer and a nylon release cross-section yarn on the surface layer. In order to promote the movement of moisture from the back layer to the surface layer by designing the density of the surface layer more densely 10 to 90% by volume than the back layer. However, this technology has the disadvantage that the moisture transfer property to the surface layer is slightly lowered because the back layer is composed of a double-sided yarn, and when sweat occurs, it absorbs and diffuses moisture from the back layer first. Small as Therefore, the technical problem to be achieved by the present invention is to improve the disadvantages of the absorbent quick-drying fibers of the conventional double-woven tissue to provide the best comfort even during intense exercise.

In the present invention, the moisture absorption layer (1: surface layer)-> moisture transition layer (2: interlayer)-> water diffusion layer (3: surface layer) is composed of high density, specific surface area of yarn and process moisture content, and thus excellent fluidity of moisture. To control it.

In order to achieve the above object, the present invention is a fibrous sheet composed of a three-layer structure in which a water absorbing layer, a water transition layer, and a water diffusion layer are sequentially stacked, and the water absorbing layer (1) is formed of polyolefin-based untwisted yarn having a circular cross-sectional structure. The water transition layer 2 is formed of one or more yarns selected from the group consisting of polyester cross-section false twisted yarn, mold cross-section ATY, and mold cross-section ITY, and the water diffusion layer 3 is a poly-containing hydroxyl group (-OH). Three-layer structure consisting of at least one yarn selected from the group consisting of ester cross-linked twisted yarn, mold cross-section ATY, mold cross-section ITY, or yarn selected from the group consisting of nylon cross-section twisted yarn, mold cross-section ATY, mold cross-section ITY. In another aspect, the present invention provides a moisture absorbing layer (1)-> a water transition layer (2)-> a water diffusion layer (3) gradually increasing the density (all / inch) of 1. The fiber sheet of the present invention is designed to be 1 to 3 times denser. The fiber sheet of the present invention has a three-layer structure composed of a water absorption layer (1: surface layer), a water transition layer (2: interlayer), and a water diffusion layer (3: surface layer). Have When sweat occurs during exercise, it is first absorbed by the pores capillary phenomenon in the micropores of the yarn of the water absorbing layer 1, and then transferred to the water diffusion layer 3 by the vertical capillary phenomenon in the water transition layer 2 composed of the sectional cross-section yarns. Afterwards, the horizontal capillary phenomenon due to the heteromorphic cross-section yarns is generated in the water diffusion layer 3 so that the water is diffused into the surface layer. The larger the area of moisture diffused on the surface, the more the area of contact with the atmosphere increases and the faster the drying rate is due to the transfer of moisture to the dry atmospheric layer.

On the other hand, moisture is a low density layer to a high density layer, a hydrophobic material having a low process moisture content and a hydrophilic material having a high process water content, and exhibits a characteristic of moving from a small place where the specific surface area of the yarn is large. In other words, the fiber sheet composed of low density, hydrophobic material and low specific surface area yarn is intended to push out moisture, and the fiber sheet composed of high density, hydrophilic material and high specific surface area yarn is intended to absorb moisture.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

Recently, with the development of sports science, the development of so-called absorption quick-drying material that absorbs sweat well and dries quickly has been activated. The most important thing in the absorption quick-drying function is to improve the absorbency and dryness of the back layer in contact with the skin. The present invention focused on technical matters for reducing the drying rate of the back layer to less than 1 minute.

First, the water absorption layer (1: back layer) is composed of polyolefin untwisted yarn of circular cross section or polyethylene untwisted yarn of the same cross section. Polyolefin fiber (especially polyethylene) has a process water content (water content of the fiber in a standard state) of 0.05% and does not contain water as a very hydrophobic material. However, due to the nature of hydrophobic yarns, the absorbency is extremely low. Therefore, the specific surface area of the yarn is relatively smaller than that of the water transition layer (2) or the water diffusion layer (3). The lowest of the layers should be designed to improve the fluidity of the water to the water transition layer (2). Untwisted yarn has better microscopic pores of fiber than false twisted yarn, so it has excellent water absorption due to pore capillary phenomenon.

The water transition layer (interlayer 2) is composed of false twisted yarn having a polyester hetero sectional structure. The process water content of polyester is 0.45%, which is 9 times higher than that of polyolefin fiber (especially polyethylene fiber) and relatively hydrophilic compared to the water absorption layer (1). In addition, since the sectional cross section yarn is formed perpendicular to the skin surface, a vertical capillary phenomenon occurs, and serves as a passage for moving moisture to the moisture diffusion layer (3).

Chemical fiber is divided into DTY (Draw Textured Yarn) and Filament yarn (DTY), which is the process of applying artificial twist to untwisted yarn and releasing the twist in the opposite direction. Say an improved yarn. Typically, the false twisted yarn has a 20 to 30% increase in specific surface area compared to the non-twisted yarn.

Recently, ATY (Air Textured Yarn) is produced to make yarn into entanglement structure by spraying air on the side of yarn for the purpose of improving the volume and touch like flammable yarn with the development of textile machinery. It is also possible to make 1.TY (Inter-lace yarn) which focuses the yarn, thus increasing the specific surface area of the yarn. Like D.T.Y, A.T.Y and I.T.Y also have a 20 to 30% increase in specific surface area compared to ordinary yarns.

The density of the water transition layer 2 is designed to be 1.1 to 3 times (all / inch) more densely than the density (all / inch) of the water absorption layer 1. If the difference in density is less than 1.1 times and the fluidity of the water is lowered, and more than 3 times, the productivity is lowered.

The water diffusion layer 3 is composed of a polyester release cross-section twisted yarn or nylon release cross-section twisted yarn prepared by containing a hydroxyl group (-OH) during spinning. Hydroxyl group (-OH) is a material that improves water absorption by crosslinking with water, and the process moisture content is improved to 3 to 4% level compared to general polyester release cross section yarn (0.45%). The yarn may be prepared by melting spinning a polyester yarn containing a resin containing a hydroxyl group (-OH) when spinning, and disclosed in Korean Patent Publication No. 1990-7000524 or Korean Patent Publication No. 2001-37377 Like the method, it may be prepared by a hydrophilic copolymer or a hydrophilic inorganic particle incorporation spinning method.

On the other hand, nylon sectional cross-linked twisted yarn is 4.5%, the process moisture content is about 10 times higher than the water transition layer (2), so that the fluidity of the water is high.

The release cross-section of the water diffusion layer 3 has a function of evaporating the water to the atmospheric layer by spreading the water moved from the water transition layer 2 by the horizontal capillary phenomenon in a horizontal position.

The yarn constituting the water diffusion layer 3 is composed of combustible yarns similar to the water transition layer 2, and the density (all / inch) is 1.1 to 3 times denser than the water transition layer 2, so that weaving and moisture Improve fluidity at the same time. For example, when the density of the water absorbing layer 1 is 100 (all / inch), the water transition layer 2 is gradually increased to 120 (all / inch) and the water diffusion layer 3 is 145 (all / inch).

The fibrous sheet of the present invention is effectively absorbed by the moisture absorbing layer (1), the water transition layer (2), and the water diffusion layer (3) because the specific surface area, density, and process moisture content of the yarn are gradually increased.

The fibrous sheet of the present invention can be woven in a loom capable of selectively supplying weft yarn, and can be knitted into a knitted fabric by knitting in a special cotton circular knitting machine and a tricot knitting machine.

The absorption function, drying function, and water transfer rate of the fibrous sheet according to the present invention were evaluated in the following manner.

Absorption rate (mm / 10 minutes)

It was measured by KSK08l5, 1, 27 B method. Take a sample 15cm long and 10cm long, fold it in half, sharply cut its end at 45 °, immerse it in water, and measure the length of water along the sample.

· Back drying speed (minutes)

Measured by visual discrimination method. In a standard state, 10 g of water is poured into the back layer of the sample having a size of 15 X 15 cm, and the time until the back layer is completely dried is measured.

Moisture Transfer Rate (min)

Measured by visual discrimination method. 10 g of water was poured into the back layer of the sample having a size of 15 X 15 cm in the standard state, and the water transferred from the back layer to the surface layer after 1 minute was converted into the following formula.

The present invention is described in detail through the following examples. However, the present invention is not limited to the following examples.

<Example 1>

In the high-speed rapier loom, 75 denier polyethylene untwisted yarn of circular cross section is supplied to the water absorption layer (1), 75 denier polyester hetero-cross-section combustible yarn is supplied to the water transition layer (2), and hydroxyl group (-OH) is provided to the water diffusion layer (3). After supplying 75 denier polyester cross-section false twisted yarn containing 10%, the density of the water absorbing layer 1 was 110 (all / inch), the density of the water transition layer 2 was 130 (all / inch), and the water diffusion layer. The density of (3) was sequentially densely designed to be 155 (all / inch) and manufactured to evaluate physical properties.

<Example 2>

Weaving the same as in Example 1

After the yarn of the water diffusion layer (3) was manufactured by replacing the nylon denier cross section twisted yarn of 75 denier, the physical properties were evaluated.

Comparative Example 1

In the same loom, 75 denier polyethylene false twisted yarn was supplied to the water absorbing layer (1) and 75 denier polyester cross-sectional twisted twisted yarn was supplied to the moisture transfer layer (2) and the water diffusion layer (3), and the respective densities were prepared in the same manner. After that, the physical properties were evaluated.

Table 1. Comparison of Physical Properties of Examples and Comparative Examples>

As shown in Table 1, Examples 1 and 2 are much superior to Comparative Example 1 in terms of absorption rate, back drying rate, and moisture transfer rate.

The present invention maintains semi-permanent performance because the drying speed of the moisture absorbing layer (back layer) in contact with the skin is very excellent compared to the previous absorbent quick-drying material, and its function is due to yarn and structure.

Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is a schematic cross-sectional view of a fiber sheet according to the present invention.

Figure 2 is a schematic cross-sectional view of a release cross section yarn according to the present invention.

<Description of Signs of Major Parts of Drawings>

1. Water absorption layer (back layer)

2. Moisture transition layer (interlayer)

3. Water diffusion layer (surface layer)

Claims (4)

A fibrous sheet composed of a three-layer structure in which a water absorbing layer, a water transition layer, and a water diffusion layer are sequentially stacked, The water absorbing layer 1 is formed of polyolefin-based unburned yarn of circular cross-sectional structure, The water transition layer 2 is formed of one or more yarns selected from the group consisting of polyester cross section twisted yarn, mold cross section A.T.Y, mold cross section I.T.Y, The water diffusion layer (3) comprises at least one selected from the group consisting of a sectional cross-linked twisted yarn of a polyester containing a hydroxyl group (-OH), a sectional cross-section ATY, and a sectional cross-section ITY, or a cross-linked twisted yarn of nylon, a cross-sectional cross-section ATY, a mold release Absorbent quick-drying fiber sheet having a three-layer structure, characterized in that consisting of at least one selected from the group consisting of cross-section ITY. delete The method of claim 1, Water absorption layer (1)-> water transition layer (2)-> water diffusion layer (3), the absorption quick-dry having a three-layer structure characterized in that the density (all / inch) is designed to be 1.1 to 3 times more densely Fiber sheet. delete