KR102409854B1 - A fabric having refrigerant and sweat-absorption and rapid-drying function and manufacturing methods thereof - Google Patents

Abstract

The present invention relates to a cooling and sweat-absorbing and quick-drying functional fabric and a method for manufacturing the same. In particular, the fabric is manufactured through a composite yarn including a mixed yarn prepared by melt-spinning a resin containing PCM microcapsules and a polyester cross-sectional yarn for a feeling of cooling. And it has the characteristics of quick-drying and sweat absorption, so it has the effect of reducing the energy required for cooling in summer, and it absorbs sweat and reduces bacteria and odors that can be generated in the drying process by giving antibacterial properties to the fabric through silver chloride powder. It relates to a functional fabric with a feeling of cooling and sweat absorption and a method for manufacturing the same.

Description

A fabric having refrigerant and sweat-absorption and rapid-drying function and manufacturing methods thereof

The present invention relates to a cooling and sweat-absorbing and quick-drying functional fabric and a method for manufacturing the same. In particular, the fabric is manufactured through a composite yarn including a mixed yarn prepared by melt-spinning a resin containing PCM microcapsules and a polyester cross-sectional yarn for a feeling of cooling. And it has the characteristics of quick-drying and sweat absorption, so it has the effect of reducing the energy required for cooling in summer, and it absorbs sweat and reduces bacteria and odors that can be generated in the drying process by giving antibacterial properties to the fabric through silver chloride powder. It relates to a functional fabric with a feeling of cooling and sweat absorption and a method for manufacturing the same.

Recently, as the summer temperature rises due to global warming, the demand for cooling energy is increasing day by day, and as the problems of energy efficiency and energy reduction are emerging, fabrics with excellent wear comfort are in the spotlight as a material for summer clothing.

Wear comfort is to improve the feel and activity when wearing clothes, and the main purpose is to secure comfortable functions for temperature, humidity, and exercise. Various technologies that can be given are being developed. As for the functions related to wear comfort, various functional materials related to moisture permeability, waterproofness, sweat perspiration, quick-drying, heat retention, elasticity, heat storage, water repellency, lightness, UV-Care, etc. have been developed and used as wear comfort products. Wear comfort products have been established not only as a temporary trend, but as a definite product demand as consumers' demand for cleanliness, health, and environment-oriented increases. to be.

Among them, it is about sweat perspiration and quick-drying, which is an important function for wearing comfort. It is the most important thing that functional fibers should have to reduce discomfort caused by sweat, which inevitably occurs in leisure and sports activities, and to prevent moisture that affects the human body from the outside. Because it is an element. There are several methods for manufacturing sweat-absorbing and quick-drying fibers, the basic principle of which is to use capillary action by increasing the porosity of the fibers to quickly drain liquid or gaseous moisture such as sweat out of the body, or to impart hydrophilicity to the material. This increases the amount and rate of water absorption, diffusion and evaporation. Therefore, sweat-absorbing and quick-drying fibers allow sweat to be immediately absorbed into the fibers and also allow the moisture absorbed in the fibers to diffuse throughout the material so that moisture is actively evaporated and released to the outside of the material. This provides a spot that absorbs moisture in the form of micro dots. Sweat is instantly radiated to the surface by the capillary phenomenon of this spot and the sweat sucked up on the surface of the fabric is diffused, so it has excellent quick-drying properties.

On the other hand, the feeling of cold, which is another factor that increases the wearing comfort of summer clothing, has a characteristic of giving a cool touch when worn. Development or research on cooling substances is in progress, or combining two or more types of cooling substances or combining cooling substances with other substances in order to enhance the cooling effect or supplement the continuity of the cooling effect even in conventionally known cooling ingredients. Active research on cooling compositions is in progress through such attempts.

In this regard, Korea Patent Publication No. 10-1332240 discloses that a cooling agent containing xylitol and erythritol is applied to the fabric to impart a cooling effect to the fabric, but in this case, the cooling agent is sufficiently bonded to the fabric. There is a disadvantage that the cooling effect decreases after washing several times.

Korean Patent Publication No. 10-1332240

In order to solve the above problems, the present invention produces a fabric through a composite yarn including a mixed yarn prepared by melt spinning a resin containing PCM microcapsules and a polyester cross-sectional yarn, thereby providing a feeling of cooling and sweat absorption and quick-drying characteristics. It has the effect of reducing the energy required for cooling in summer, and provides antibacterial properties to the fabric through silver chloride powder to absorb sweat and reduce bacteria and odors that can be generated in the drying process. and a method for preparing the same.

The object is a first blended yarn manufacturing step of blending a polyester cross-sectional yarn and a polyurethane fiber; A cold-sensitive fiber manufacturing step of manufacturing fibers by spinning a mixture of PCM microcapsules, polyester resin, thermoplastic elastomer resin, honeycomb dry powder and silver chloride powder in a melt-mixed state; A second blended yarn manufacturing step of blending the cold-sensitive fibers and natural fibers; manufacturing a fabric using the first blended yarn as a warp and a second blended yarn as a weft yarn; and washing and drying the fabric; It can be achieved by a manufacturing method of a cooling feeling and sweat perspiration quick-drying functional fabric comprising a.

Specifically, the washing and drying step may further include the step of impregnating a mixture of cypress oil, pine needle extract and citric acid before washing, and then performing tenta and tumble treatment.

Specifically, the natural fiber may be comprised of 60 to 90% by weight of cotton fiber and 10 to 40% by weight of pineapple fiber.

Specifically, the first blended yarn manufacturing step may further include a step of coating a cooling agent on the first blended yarn.

Specifically, the first blended yarn is composed of 80 to 96% by weight of polyester cross-sectional yarn, 4 to 20% by weight of polyurethane fiber, and the cold-sensitive fiber is PCM microcapsule 8 to 12% by weight, polyester resin 50 ~60% by weight, thermoplastic elastomer resin 20-30% by weight, honeycomb dry powder 3-6% by weight and silver chloride powder 3-6% by weight, the second blended yarn is 30 to 70% by weight of the cold-sensitive fiber and It may be composed of 30 to 70% by weight of natural fibers.

Cooling and sweat absorbing quick-drying functional fabric according to the present invention is characterized by cool and sweat-absorbing and quick-drying properties by manufacturing a fabric through a blended yarn made by melt-spinning a resin containing PCM microcapsules and a blended yarn including a polyester cross-sectional yarn It has the effect of reducing the energy required for cooling, and by giving the fabric antibacterial properties through silver chloride powder, it can absorb sweat and provide a function to reduce bacteria and odors that can be generated in the drying process. .

1 is a flow chart for explaining a method of manufacturing a cooling sensation and sweat perspiration quick-drying functional fabric according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be changed and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosure form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various elements, these terms should be interpreted only for the purpose of distinguishing one element from another. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

The terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. have meaning Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative and the present invention is not limited to the illustrated matters. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. When 'including', 'having', 'consisting', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, cases including the plural are included unless otherwise explicitly stated.

In interpreting the components, it is construed as including an error range even if there is no separate explicit description.

The size and thickness of each component shown in the drawings are illustrated for convenience of description, and the present invention is not necessarily limited to the size and thickness of the illustrated component.

Each feature of the various embodiments of the present invention may be partially or wholly combined or combined with each other, and as those skilled in the art will fully understand, technically various interlocking and driving are possible, and each embodiment may be implemented independently of each other, It may be possible to implement together in a related relationship.

One aspect of the present application, a first blended yarn manufacturing step of blending a polyester cross-sectional yarn and a polyurethane fiber; A cold-sensitive fiber manufacturing step of manufacturing fibers by spinning a mixture of PCM microcapsules, polyester resin, thermoplastic elastomer resin, honeycomb dry powder and silver chloride powder in a melt-mixed state; A second blended yarn manufacturing step of blending the cold-sensitive fibers and natural fibers; manufacturing a fabric using the first blended yarn as a warp and a second blended yarn as a weft yarn; and washing and drying the fabric; It provides a method for producing a cooling feeling and sweat perspiration quick-drying functional fabric comprising a.

Hereinafter, a method for manufacturing a fabric with a feeling of cooling and sweat absorption and quick-drying according to an embodiment of the present invention can be described with reference to FIG. 1 .

First, a first blended yarn is prepared by blending a polyester cross-sectional yarn and a polyurethane fiber.

The polyester is one of the representative synthetic fibers (man-made fibers) compared to natural fibers. It is relatively inexpensive because it can be mass-produced, and it is not easily crumpled and has high durability, so it is used as a material for various clothes. Polyester fiber has good processability and is easy to blend with natural or regenerated fibers, and can be blended with nylon to produce microfibers.

The deformed cross-section yarn refers to a yarn in which the state of the cross-section of the yarn is changed by changing the shape of the nozzle used for spinning the synthetic fiber from a normal circular shape to a triangular or 十 shape. The polyester cross-sectional yarn in the present invention has the effect of widening the surface area of the yarn, and when manufacturing clothing, it exhibits superior sweat absorption and quick-drying properties compared to general polyester fibers. It can help reduce cooling energy in summer.

The polyurethane fiber (polyurethane fiber) is also called an elastic fiber (elastic fiber) refers to a polymer compound containing a polyurethane content of 85% or more. Although the strength of polyurethane fiber is lower than that of other fibers, the fabric made from it has excellent durability and is used in various fields of fabric from thin fabrics with good strength to heavy clothing. Polyurethane fiber is the only elastic fiber that stretches like rubber, stretches 6 times or more, and has good recovery. Polyurethane fiber can make even very fine threads, so it is possible to produce even microfibers of about 10 dtex (decitex), which is impossible with natural rubber. When mixing with other fibers, sufficient elasticity can be obtained only with a mixing ratio of 5 to 6%. The hygroscopicity is very low, less than 1%, and the specific gravity is 1.0~1.3, which is relatively light.

In one embodiment, the first blended yarn may be composed of 80 to 96% by weight of polyester cross-sectional yarns, and 4 to 20% by weight of polyurethane fibers.

If the polyester cross-sectional yarn is less than 80% by weight, the sweat absorption and quick-drying function of the fabric produced through the first blended yarn may be reduced, and if the polyurethane fiber is less than 4% by weight, the elasticity of the fabric produced through the first blended yarn may decrease. can

In one embodiment, the step of preparing the first blended yarn may further include the step of coating a cooling agent on the first blended yarn.

The cooling agent may be one or more cooling agents selected from the group consisting of xylitol, erythritol, and menthol.

When the cooling agent is coated on a fiber, it may function as an energy-reducing type of clothing by imparting a cooling sensation to clothes made of the fiber.

Next, a mixture of PCM microcapsules, polyester resin, thermoplastic elastomer resin, honeycomb dry powder and silver chloride powder is spun in a melt-mixed state to prepare cold-sensitive fibers.

The phase change material (PCM) refers to a material whose state changes from gas to liquid or from liquid to solid according to temperature. When PCM is put in a microcapsule, it has a structure that changes to a liquid at a high temperature and absorbs heat, and changes to a solid at a low temperature and emits heat.

In the present invention, these PCM microcapsules are added to a resin mixture, melted and mixed, and then spun to produce a cold-sensitive fiber containing PCM microcapsules inside the fiber, and a functional fabric including the PCM microcapsule is manufactured through the fabric having excellent cooling sensation. Provides energy-saving fabrics that help reduce cooling energy in summer.

The thermoplastic elastomer resin serves to improve ductility by mixing with a polyester resin and at the same time improve tensile strength. The thermoplastic elastomer resin may be at least one thermoplastic elastomer selected from styrene-based elastomer, olefin-based elastomer, urethane-based elastomer, amide-based elastomer, butadiene-based elastomer, ether-based elastomer, ester-based elastomer, and silicone-based elastomer, preferably styrene. /Styrenic elastomers such as butadiene block copolymer, styrene/isoprene block copolymer, styrene/butadiene/styrene block copolymer, styrene/isoprene/styrene block copolymer, styrene/ethylene/butylene block copolymer, styrene/ethylene/ Synthetic rubber-based elastomers in which styrene and olefinic monomers are copolymerized, such as butylene/styrene (SEBS) block copolymers, styrene/ethylene/propylene block copolymers, etc., polyester-type polyurethane thermoplastic elastomers, polyether-type polyurethane thermoplastic elastomers, and It may be at least one thermoplastic elastomer selected from among ethylene copolymer thermoplastic elastomers.

The silver chloride powder refers to a powder composed of silver chloride, and is added to the resin mixture to impart antibacterial properties to the manufactured fiber. In the present invention, when the fabric including the fiber to which silver chloride powder is added functions as a quick-drying sweat perspiration, it is possible to reduce bacteria and odors that may be generated in the process of drying the sweat of the fiber.

In one embodiment, the cold-sensitive fiber is PCM microcapsule 8 to 12% by weight, polyester resin 50 to 60% by weight, thermoplastic elastomer resin 20 to 30% by weight, honeycomb dry powder 3 to 6% by weight, and silver chloride powder It may be composed of 3 to 6% by weight.

Next, the second blended yarn is prepared by blending the cold-sensitive fiber and the natural fiber.

The natural fiber may be one or more fibers selected from the group consisting of cotton, linen, ramie, hemp, jute, kenaf, kapok, manila ginseng, sisal, palm, pineapple, banana, silk, wool, and fur, Preferably, it may be composed of cotton fiber and pineapple fiber, and more preferably, it may be composed of 60 to 90% by weight of cotton fiber and 10 to 40% by weight of pineapple fiber.

In one embodiment, the second blended yarn may be composed of 30 to 70% by weight of cold-sensitive fibers and 30 to 70% by weight of natural fibers.

Next, a fabric is manufactured using the first blended yarn as a warp, and a second blended yarn as the weft yarn.

Finally, the fabric is washed and dried to prepare a functional fabric that feels cool and absorbs sweat quickly.

In one embodiment, the washing and drying step may further include the step of tanning and tumble treatment after impregnating the fabric with a mixture of cypress oil, pine needle extract and citric acid before washing.

The mixture may be impregnated into the fabric to increase the antibacterial activity of the fabric and at the same time to enhance the ductility of the fabric including the natural fiber.

The tenta and tumble treatment may be to give resistance to shrinkage or distortion by heat-processing the fabric.

Hereinafter, the configuration of the present invention and its effects will be described in more detail through specific examples and comparative examples. However, these examples are for explaining the present invention in more detail, and the scope of the present invention is not limited to these examples.

[Example 1]

First, a first blended yarn was prepared by blending 95% by weight of a polyester cross-sectional yarn and 5% by weight of a polyurethane fiber.

Next, a resin mixture composed of 10% by weight of PCM microcapsules, 60% by weight of polyester resin, 20% by weight of thermoplastic elastomer resin, 5% by weight of honeycomb dry powder and 5% by weight of silver chloride powder is melted, then spun and dried to cool. A second blended yarn was prepared by preparing a sensible fiber, and blending a natural fiber mixed with 80% by weight of cotton fiber and 20% by weight of pineapple fiber and the cooling sensible fiber at a weight ratio of 40:60.

Next, a fabric was manufactured using the first blended yarn as a warp yarn and the second blended yarn as a weft yarn, and then washed and dried to prepare a cooling and sweat-absorbing and quick-drying functional fabric. The prepared functional fabric was named Example 1.

[Example 2]

It was prepared in the same manner as in Example 1, but after impregnating in a mixture of cypress oil, pine needle extract, and citric acid before washing, the functional fabric prepared by additionally including the steps of tenta and tumble treatment was used as Example 2 named.

[Example 3]

Although it was prepared in the same manner as in Example 1, a functional fabric prepared by additionally coating the first blended yarn with a cooling agent after the first blended yarn was prepared was named as Example 3.

[Comparative Example 1]

Although it was prepared in the same manner as in Example 1, a functional fabric prepared using general polyester fibers instead of polyester cross-sectional yarns in the first blended yarn manufacturing step was named Comparative Example 1.

[Comparative Example 2]

A functional fabric prepared in the same manner as in Example 1, except for PCM microcapsules in the cold-sensitive fiber manufacturing step, was named Comparative Example 2.

[Experimental Example 1: Measurement of absorbency]

The absorbency of the fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 was evaluated, and the results are shown in Table 1.

Absorption evaluation was tested according to method B of 6.27.1 absorption rate test method of KS K 0815, and the fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 were cut to 20 cm in length and 2.5 cm in width, respectively, and one end was 27 Let it touch the water surface of a vessel containing ±2 ℃ distilled water, and fix the other end with a horizontal bar at a constant height. After 10 minutes, the height of the rising water was measured and compared. Normal cotton fibers were added as Control 1 to compare their effects.

In addition, the absorption rate was tested according to 6.27.1 Absorption Rate Test Method A (dropping method) of KS K 0815.

Absorbency (mm) Absorption rate (sec) Example 1 45 9 Example 2 44 10 Example 3 38 10 Comparative Example 1 27 28 Comparative Example 2 41 11 Control 1 22 39

As shown in Table 1, all of Examples 1 to 3 were confirmed to have excellent absorbency and absorption rate, thereby exhibiting excellent sweat absorption and quick-drying properties.

[Experimental Example 2: Measurement of quick-drying]

The quick-drying properties of the fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 were evaluated, and the results are shown in Table 2.

The quick-drying evaluation was carried out based on 6.28.1 Drying Speed Test Method B of KS K 0815, and the fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 were cut into a prescribed shape with a size of 202.5 cm 2, respectively, and the cut After immersing a sample in distilled water for 3 hours, take it out and measure the weight change of the sample for 1 hour every 10 minutes from when the amount of moisture remaining in the sample becomes 1 g. By calculating the weight difference with each sample, the water evaporation rate (%) was calculated. Normal cotton fiber was added as Control 1, and the effects were compared.

Water evaporation rate (%) Drying time (min) 10 20 30 40 50 60 Example 1 57.4 81.0 89.6 91.2 94.2 97.8 Example 2 56.9 80.7 88.9 90.5 94.0 97.1 Example 3 52.4 77.0 85.1 88.6 93.5 96.4 Comparative Example 1 49.3 72.6 81.1 86.8 92.0 96.1 Comparative Example 2 54.4 79.9 86.2 89.0 93.8 97.0 Control 1 38.1 68.7 77.5 84.4 90.8 95.2

As shown in Table 2, Examples 1 to 3 confirmed that the moisture evaporation rate was excellent compared to the control, and it was confirmed that the functional fabric according to the present invention could quickly absorb and discharge sweat or water vapor.

[Experimental Example 3: Measurement of Contact Cooling Sensitivity]

The contact cooling sensitivity of the fabrics of Examples 1 to 3 and Comparative Examples 1 and 2 was evaluated, and the results are shown in Table 3.

The contact cooling sensitivity was measured by obtaining the average value after observing the change in calorific value 5 or more times for the fabrics of Examples 1 to 3 and Comparative Examples 1 to 2 based on the KES-F7 Thermo Labo Ⅱ method. Normal cotton fiber was added as Control 1, and the effects were compared.

Contact cooling sensitivity (J/sec/㎠) Example 1 0.265 Example 2 0.271 Example 3 0.323 Comparative Example 1 0.219 Comparative Example 2 0.126 Control 1 0.101

As shown in Table 3, it was confirmed that all of Examples 1 to 3 exhibit excellent contact cooling sensation, and in particular, Example 3 exhibited very excellent contact cooling sensation. In general, if the contact cooling sensitivity value is 0.200 or more, the cooling sensation is good, and if it is 0.170 or less, it is evaluated as the level of general synthetic fibers. became

Claims (3)

A first blended yarn manufacturing step of blending a polyester cross-sectional yarn and a polyurethane fiber;
A cold-sensitive fiber manufacturing step of manufacturing fibers by spinning a mixture of PCM microcapsules, polyester resin, thermoplastic elastomer resin, honeycomb dry powder, and silver chloride powder in a melt-mixed state;
A second blended yarn manufacturing step of blending the cold-sensitive fibers and natural fibers;
manufacturing a fabric using the first blended yarn as a warp and a second blended yarn as a weft yarn; and
washing and drying the fabric; A method for producing a feeling of cooling and sweat perspiration quick-drying functional fabric comprising a.
The method of claim 1,
After the washing and drying step is impregnated with a mixture of cypress oil, pine needle extract, and citric acid before washing, the method of manufacturing a cooling and sweat-absorbing quick-drying functional fabric further comprising the step of tenta and tumble treatment.
The method of claim 1,
The natural fiber is 60 to 90% by weight of cotton fiber, and 10 to 40% by weight of pineapple fiber.

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