KR100504678B1 - A super surface water repellent & high speed inside dry 5 layer textile sheet having the self temperature control - Google Patents

Abstract

The present invention provides a water repellent layer (1) having a water repellent function, an absorbent layer (2) for absorbing moisture, a temperature control layer (3) composed of a phase change material, and an absorbent layer (2) and a temperature control layer ( It relates to a 5-layered superficial superhydrophobic and backside quick-drying fibrous sheet having a temperature control function formed by a moisture transfer layer (4) to be transferred to 3) and a backside quick-drying layer (5) composed of hydrophobic yarns.

The fibrous sheet of the present invention simultaneously expresses the surface super water repellent function by the hydrophobic yarn, the super fast drying function of the back layer, the temperature control function by the phase change material (PCM), the water absorption and the water transition function by the sectional cross-section yarn. To provide the best fit for the four seasons.

Description

A super surface water repellent & high speed inside dry 5 layer textile sheet having the self temperature control}

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The present invention provides a phase change of a fiber sheet (A) having a double structure having a hydrophobic yarn as the surface and a double-sided single-sided yarn as the back surface, and a fiber sheet (B) having a double structure having the double-sided cross-section as the surface and the hydrophobic yarn as the back surface. Phase change material (PCM) and polyurethane adhesive are mixed to combine the back surface of (A) fiber sheet and the surface of (B) fiber sheet to express surface super-water repellent function, temperature control function, and super fast dry function The present invention relates to a fibrous sheet which is intended for the purpose of simultaneously expressing a water repellent function and a water absorbing function in rainy days, the inventors of the application of a durable super water-repellent fast-drying fiber sheet having a water transition layer (application number: 10-2002. 0079377). In December 12, 2002, the surface layer was composed of polyolefin fibers having a process water content of 0.05% or less to impart surface water repellency, and the water transfer layer and the back absorber layer were formed as a hetero The method of constitution (moisture absorption-> moisture transition-> surface layer micropore evaporation) has been proposed to give absorption and quick drying function. The design is formed in a three-layered structure and the concept of water transfer between the surface layer and the back layer has been introduced, there is an advantage that can express the water-repellent function and absorbing function to some extent in the rain. However, because the backing layer is composed of heteromorphic section yarns, there is a limit to quick drying and there is no temperature control function, so it is impossible to suppress body temperature increase during exercise or to prevent body temperature decrease after exercise.

In the application filed by the inventor, "AI-type super water-repellent quick-drying fiber sheet with temperature control function" (application number: 10-2002-0087624, filed Dec. 30, 2002), a yarn containing a phase-transfer material is used as a screening method. The composite yarn with the sinus polyolefin fiber as outer layer yarn is supplied to the back layer, and the surface layer is supplied with hydrophobic yarn to introduce the concept of super water repellent, followed by forming a water absorbing layer and a water transition layer composed of heteromorphic cross-section yarn between the surface layer and the back layer. The technology that gives surface super water repellent, back super quick drying, and temperature control function is proposed. The above invention is complicated to manufacture the composite yarn constituting the back layer, and also increase the fineness of the composite yarn to reduce productivity during the knitting or weaving, the water absorption layer, the water transfer layer is less area to absorb, diffuse the moisture discharged from the back layer There is a limit to ability.

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An object of the present invention is to combine the two types of fiber sheets consisting of hydrophobic yarns and hetero-cross section yarns by adding a phase-transfer material (PCM) to simultaneously impart a surface water repellent function, a back quick drying function, a temperature control function.

The present invention relates to a composite fiber sheet capable of simultaneously expressing a temperature control function, a surface ultra-water repellent, and a back quick drying property having a five-layer structure. More specifically, the double-tissue fibrous sheet (A) made of hydrophobic yarn and heteromorphic single-sided yarn having a process water content of 0.05% or less, and the double-sheet fibrous sheet (B) composed of the same yarn as the above (A) were subjected to phase change material (PCM) and poly The urethane was mixed with the adhesive, but the (A) release cross-section of the fiber sheet and the (B) release cross-section of the fiber sheet were faced to each other. In addition, in order to facilitate the flow of moisture, the density of the back surface dry layer (5)-> water transition layer (4)-> absorption layer (2)-> surface water repellent layer (1) is increased in order to make the surface super water repellent, This is to give the temperature control function at the same time.

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.

The A fiber sheet is composed of the surface water repellent layer 1 and the absorbent layer 2. Typically, water repellent function is given by diluting fluorine-based or silicone-based resin with water and treating the fiber surface by dipping method (Pad method) or Knife coating method. There is no washing durability and the generation of environmental pollutants and skin damage. It causes a lot of problems. On the other hand, the absorbent processing used to improve the absorption function is manufactured by crosslinking the drug containing hydroxyl group (OH) to the fiber surface after dyeing. Therefore, the present invention is configured as a non-pharmaceutical dependence method for improving laundry durability and being environmentally friendly and good for skin health.

First, the surface water repellent layer 1 is composed of a hydrophobic yarn having a process water content of 0.05% or less. Hydrophobic yarns include polyolefin fibers such as polyethylene or nylon or polyester fibers to which a resin having a water repellent property is added during yarn spinning. Normally, the process moisture content of nylon is 4.5% polyester, and the process water content is 0.45%. However, when 3-30% by weight of the water-repellent component silicone or fluorine resin is added to the yarn, the process water content is 0.05% or less. If the content of the water-repellent resin is less than 3%, the hydrophobic property is lowered, if it exceeds 30%, productivity is lowered during the manufacturing process. The surface water repellent layer 1 may also be prepared by a post-processing method in which only the surface layer is treated with 3-10% o.w.f (on the weight of fiber) of a silicone or fluorine-based water repellent in a double-woven fiber sheet made of 100% release cross-section yarn. The latter method has the disadvantage of lowering the durability of the laundry, but has the advantage of low manufacturing cost and easy workability.

Surface of the surface pores of the water-repellent layer 1, to have a sufficient water-repellent fog function (φ 100㎛), drizzle (φ3 00㎛), usually non-(φ5 00㎛), heavy rain under less than 100㎛ φ (φ 1,000㎛) This should be moderate and larger than the heat generated during exercise (0.4nm) to improve comfort.

The absorbent layer 2 is composed of polyester or nylon release section yarns. If the yarn is made into a cross-section yarn, capillary phenomena occur and the absorption is improved, so that the yarn has a physical hydrophilic function. The density of the absorbent layer 2 should be greater than that of the water transfer layer 4 to facilitate the discharge of moisture and to be smaller than the surface water repellent layer 1 to suppress the inflow of rainwater. The temperature control layer 3 is composed of a phase transfer material (PCM) and a polyurethane adhesive, and has a temperature control function as a bonding layer for bonding the water absorbing layer 4 of the fiber sheet (A) and the water transition layer 4 of the fiber sheet (B). .

A phase change material (PCM) refers to a material that absorbs or releases a lot of heat while changing phase from solid to liquid or liquid to solid at a specific temperature.

In this way, the heat that is absorbed or released while the phase change material maintains the same temperature during phase transition is called latent heat. Even though a considerable amount of kinetic thermal energy is absorbed, the phase change material is coated with a conductive material by changing only its phase from solid to liquid without raising the temperature. The excess heat energy of the heat generating layer 4 is absorbed to prevent heat loss.

On the contrary, the phase transferred to the liquid turns into a solid and releases a lot of heat energy absorbed into the body to maintain warmth for a long time even if the power supply is interrupted. Phase transition temperature can be set variously, but 15 ℃ ~ 35 ℃ is suitable for human body. If it is less than 15 ℃ or exceeds 35 ℃ it is difficult to adjust the latent heat by body temperature during exercise is not suitable for clothing.

The phase change material is a C ₃ OH62, OH42 C ₂ such as an organic substance and _{Mgcl 2 .6H 2 O, Srbr 2} .6H 2 O, Zn 2 .4H 2 O , etc., and inorganic materials such as the preferred micro-encapsulated to use a polyurethane of Used by mixing with resin hydrophilic adhesive. The component of the adhesive should be a hydrophilic polyurethane resin to facilitate the transfer of moisture from the water transition layer 4 to the absorbent layer 2.

The content of phase transfer material (PCM) is 5 ~ 90g / m ² is suitable. If it is less than 5g / m ^{2, the} function is deteriorated. If it exceeds 90g / m ² , the touch is changed, the price is increased, and economic efficiency is lowered.

The water transition layer 4 is composed of polyester or nylon release section yarns. It has a function of transferring the sweat discharged from the back surface quick drying layer (5) to the water transition layer (4)-> temperature control layer (3)-> absorption layer (2) by using capillary phenomenon. The density of the water transition layer 4 should be designed to be larger than the back surface quick drying layer 5 and lower than the absorbent layer 2 to promote the flow of moisture.

The back surface quick drying layer 5 is composed of the same yarn as the hydrophobic yarn constituting the surface water repellent layer 1, but the lowest density in the entire layer is designed to facilitate the discharge of moisture.

The fibrous sheet (A) and the fibrous sheet (B) of the present invention can be designed in a double woven fabric and then can be manufactured in a conventional foamer. In consideration of the workability of the fabric, the adhesive force and the touch of the fiber sheet, the fiber sheet A is preferably of woven or knitted type, and the fiber sheet B is preferably composed of a knit fabric.

The fiber sheet of this invention was evaluated by the following method.

Surface water repellency (%)

It was measured by KSK 0590. After installing the sample inclined 45˚ at 20 x 20Cm, spray 250CC of distilled water and measure the amount of water remaining on the surface. In this test, physical properties after washing 10 times were evaluated.

· Back drying speed (min)

Measured by visual discrimination method. In a standard state, make a size of 15 x 15cm, pour 10g of water on the back of the sample, and measure the time until the back layer is completely dried.

Temperature control

In the artificial weather room, the room temperature was set to 15 ° C. and skin temperature was measured at 30 minutes after the start of exercise and 30 minutes after the end of exercise.

(Example)

After supplying 75 denier polyolefin fibers to the surface water repellent layer 1 and supplying 75 denier polyester cross section yarns to the absorbent layer 2, the fiber sheet A was formed such that the surface voids of the surface water repellent layer 1 were 50 µm. Then, 75 denier nylon sectioned yarns were supplied to the moisture transfer layer (3) and nylon yarns mixed with 30% by weight of silicone resin at the time of spinning were made to form a fiber sheet (B). 30g / m ² PCM and 10g / m ² polyurethane hydrophilic adhesive were mixed to form a composite cross-section of the fiber sheet (A) and the fiber sheet (B) so as to contact each other, and then evaluated physical properties. The density of the back drying layer (5)-> water transfer layer (4)-> absorbing layer (3)-> surface water repellent layer (1) was designed to increase by 10%.

Comparative Example

After dyeing, the water-repellent nylon 75 denier treated with water-repellent method was fabricated (A) and knitted fabric sheet (B) of 100% polyester sectional cross-section yarn (B) with general polyurethane adhesive resin and then evaluated for physical properties.

In the embodiment, the water repellency is not lowered even after 10 washings due to the characteristics of the yarn. In addition, the back drying speed was also excellent compared to the comparative example, it can be seen that the change in the skin temperature does not occur even after the end of the exercise, and always provides comfort.

The fibrous sheet of the present invention is particularly suitable for sports clothing and outdoor work clothes because it has an artificial intelligence function that suppresses an increase in body temperature during exercise and prevents a decrease in body temperature after exercise, and a water repellent function and a quick-drying function in rainy weather. The invention has a high density of the absorbent layer 2 and the moisture transfer layer 4, so that the drying function of the back surface quick drying layer 5 is improved, and the process is relatively simple and economical because the phase transfer material (PCM) is added together with the adhesive when it is laminated. to be.

Although the present invention has been described with reference to the embodiments illustrated in the accompanying drawings, this is merely exemplary and can be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. will be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

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

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

<Description of Signs of Major Parts in Drawings> 1. Surface water repellent layer 2. Absorbent layer 3. Temperature control layer (adhesive layer) 4. Moisture transition layer 5. Fast Drying Floor A: 1 and 2

B: 4 and 5

Claims (7)

Surface water repellent layer (1) consisting of hydrophobic yarns, absorbent layer (2) consisting of cross-sectional cross-section yarns, temperature control layer (3) consisting of phase transfer material (PCM) and polyurethane adhesive, moisture transfer layer (4) consisting of release cross-section yarns, hydrophobic A superficial water repellent back super fast dry fiber sheet having a five-layer structure having a temperature control function, characterized in that the back fast drying layer (5) composed of Sungwon yarn is sequentially stacked. According to claim 1, A fiber sheet, wherein the hydrophobic yarn is a polyolefin or polyethylene fiber or a nylon or polyester fiber prepared by containing 3 to 30% of a fluorine or silicone resin. According to claim 1, A fiber sheet, wherein the surface water repellent layer (1) is surface treated with a silicone or fluorine-based water repellent 3-10% o.w.f. According to claim 1, Fiber sheet, characterized in that the content of the phase transition material 5 ~ 90 g / m ² . According to claim 1, The surface sheet of the surface water repellent layer (1) is phi 0.4-99 micrometers, The fiber sheet characterized by the above-mentioned. According to claim 1, A backsheet quick drying layer composed of yarn (5)-> moisture transfer layer (4)-> absorbent layer (2)-> fiber sheet characterized in that the density of the surface water-repellent layer (1) is sequentially dense. The method of claim 1, A fibrous sheet, characterized in that the melting point of the phase change material is 15 ° C to 35 ° C.