KR101046364B1 - Sweat-absorbing comfort woven, knitted fabric and production method thereof - Google Patents

Abstract

TECHNICAL FIELD This invention relates to a moisture-absorbing comfort fabric and knitted fabric, and its manufacturing method. The knitted fabric of the present invention has a water-absorbing comfort material layer including an absorbent material and a hydrophobic material formed on the back side thereof, and has a function of absorbing and releasing water. Such a knitted fabric has a water transfer rate of 20% or less, and an absorption rate measured by the dropping method of KS K 0815 is 10 seconds or less. The method for producing a sweat-absorbing comfortable woven / knitted product of the present invention comprises the steps of removing impurities of the woven / knitted fabric, imparting diffusibility to the woven / woven fabric, and dissolving the hydrophobic material and the absorbent material on the back side of the woven / woven fabric. And applying the prepared mixed solution.

Sweat comfort, hydrophobicity, absorbency, diffusion, moisture transfer

Description

Comfortable Comfort Knitted Fabrics and Methods for Manufacturing the Same {Comfortable woven or knitted fabric having the property to absorb and transport sweat away from the skin to the outside of garment and method for manufacturing the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sweat-absorbing comfort fabric and knitted fabric, and a method for manufacturing the same, and more particularly, to a fabric and fabric having a moisture-absorbing comfort material layer including a hydrophobic substance and an absorbent material on its back side.

Sweating after physical activities such as sports and leisure remains on the skin, causing skin and clothing to stick to each other or become sticky. The sweat comfort to prevent the occurrence of such discomfort is a function to effectively process the moisture, such as sweat sweating after physical activities such as sports, leisure to provide a comfortable environment inside the garment. The sweat absorbing comfort of the fabric and the knitted fabric can be satisfied as the back side of the knitted fabric has the function of absorbing moisture such as sweat and discharging it back to the outside. In this case, the back surface refers to the surface in contact with the skin of the two surfaces of the fabric, the fabric constituting the garment, the opposite surface is referred to as the surface.

The method of imparting the comfort absorbed by a woven fabric or a knitted fabric includes a method of imparting high absorption and diffusion to the woven fabric and a method of producing a woven fabric of a double woven fabric using hydrophobic fibers and hydrophilic fibers.

The method of providing a high absorption and diffusivity to a woven fabric is a fiber raw material, or processing. The method using the fiber raw material is a method of using a synthetic cross-section synthetic fiber in which the cross-sectional shape of the fiber is changed so that water is rapidly diffused, and the method using the processing is to treat the knitted fabrics with a quick-drying and fast-drying agent that improves absorption and diffusion. It is a way. Fabrics and fabrics manufactured using this method absorb sweat and dry quickly, but there is a problem in that the absorbed sweat is in continuous contact with the skin and the clothing sticks to the skin, thereby causing discomfort to the wearer of the clothing.

The method for producing double-woven fabrics and knitted fabrics using hydrophobic fibers and hydrophilic fibers is to use fibers having high hydrophobicity on the back side of the knitted fabrics in contact with the skin and hydrophilic fibers on the surface thereof. Such double-woven fabrics and knitted fabrics are discharged and diffused toward the surface through the back surface of the knitted fabrics made of hydrophobic fibers, such as sweat shed from the human body, so that almost no moisture such as sweat remains on the back surface. Therefore, the skin and the clothes are not attached to each other or the skin is not sticky, showing a comfortable fit. In this case, polypropylene fiber may be used as the hydrophobic fiber on the back side, since the polypropylene fiber hardly absorbs water unlike other fibers. However, polypropylene fibers are difficult to dye and have low melt temperatures, which are sensitive to heat during dyeing and processing, making them hard to touch. In addition, these fabrics and knitted fabrics cannot absorb moisture in the gaseous state, so they are not moisturizing and are not human-friendly because they can be applied only to double-woven fabrics and knitted fabrics. There are many limitations to their application to textile products.

SUMMARY OF THE INVENTION An object of the present invention is to provide a comfortable comfort fabric and knitted fabric that retains a dry and comfortable state when the garment is worn by the back surface having a function of absorbing and releasing moisture such as sweat and the surface thereof, and a method of manufacturing the same. To provide

A method for producing a sweat-absorbing comfortable knitted fabric according to a preferred embodiment of the present invention includes dissolving a hydrophobic substance and an absorbent substance to prepare a mixed solution, and applying it to the back surface of the knitted fabric.

According to another suitable embodiment of the present invention, a method for producing a sweat-absorbing comfort fabric and knitted fabric can use a mixed solution containing 5 to 100 g / l absorbent material and 100 to 150 g / l hydrophobic material.

According to another suitable embodiment of the present invention, the method for producing the absorbent comfort fabric and knitted fabric can produce a mixed solution with a hydrophobic substance containing at least one of a paraffin compound and a fluorine compound.

According to still another preferred embodiment of the present invention, the method for producing a sweat-absorbing comfort fabric and knitted fabric can be made of a mixed solution with an absorbent material containing at least one of a silicone-based, polyurethane-based or polyester-based compound.

The method for producing a sweat-absorbing comfortable knitted fabric according to another preferred embodiment of the present invention may further include heat treatment after applying the mixed solution to the back surface of the knitted fabric.

According to another preferred embodiment of the present invention, a method for manufacturing a sweat-absorbing comfortable fabric and knitted fabric includes the steps of removing impurities of the fabric and knitted fabric before applying the back surface of the knitted fabric to a mixed solution composed of a hydrophobic material and an absorbent material. The method may further include providing diffusibility to the knitted fabric.

The absorbent comfort fabric and knitted fabric according to a preferred embodiment of the present invention may include a layer of absorbent comfort material including an absorbent material and a hydrophobic material at a ratio of 1:30 to 1: 1 on the back surface.

The moisture-absorbing comfort knitted fabric and knitted fabric according to a preferred embodiment of the present invention has a water migration rate of 1 to 20%, and an absorption rate on the back surface measured by the dropping method of KS K 0815 is 1 to 10 seconds.

According to the present invention, the sweat-absorbing comfort fabric and knitted fabric absorbs and discharges moisture such as sweat and the surface has a function of spreading moisture. Thus, the surface of the knitted and knitted fabric is rapidly absorbed by absorbing moisture such as sweat generated in the human body. Can be discharged and diffused. Therefore, when manufacturing it as a garment, it is possible to maintain a comfortable state without sticking to the skin by sweat, and the sweat spread to the surface is exposed to the outside and dries quickly, which can cause body temperature to decrease when the sweat cools down. Can be prevented.

The method for producing the absorbent comfort fabric and knitted fabric of the present invention can be applied not only to the multi-layered fabric and the knitted fabric of a double or more fabric, but also to the fabric and the knitted fabric of a single tissue.

In the following the invention is described in detail based on the embodiment. The examples presented are exemplary and are not intended to limit the scope of the invention.

In the sweat absorbing comfort knit fabric of the present invention, a water absorbing comfort material layer in which an absorbent material and a hydrophobic material are mixed is formed. In this case, the knitted fabric includes at least one fiber selected from the group consisting of cellulose fibers such as cotton, modal, lyocell or viscose rayon, or a group consisting of a mixture of cellulose fibers and synthetic fibers such as nylon or polyester. . Woven fabrics may also be woven fabrics, such as plain, twill or satin, single jersey, pique, waffle, or double jersey. It may be a knitted fabric such as), or may be a nonwoven fabric.

The physical properties of the sweat-absorbing comfort knitted fabric and knitted fabric of the present invention are i) moisture transfer rate of 20% or less, and ii) absorption rate measured by the dropping method of KS K 0815 is 10 seconds or less. Moisture transfer rate is 0.2g of water dropped on the back side of the fabric and knitted fabric, covered with absorbent paper, and left for 1 minute with a load of 500g. The weight of water transferred to the absorbent paper is expressed as a percentage of 0.2g. It can be calculated by the formula.

Moisture transfer rate (%) = (Weighted blotter weight-initial blotter weight) /0.2×100

The method for preparing the absorbent comfort fabric and knitted fabric of the present invention includes the steps of dissolving a hydrophobic material and an absorbent material to prepare a mixed solution and applying the back surface to the knitted fabric. The mixed solution includes 5 to 100 g / l of absorbent material and 100 to 150 g / l of hydrophobic material, and is applied to the back side of the knitted fabric and then fixed by heat treatment. In this case, the absorbent material may include at least one of a silicone-based softener, a polyurethane-based softener, or a polyester-based softener. The hydrophobic material may be a paraffinic compound or a fluorine compound. The paraffinic compound may be, for example, liquid paraffin or wet wax, and the fluorine compound may be, for example, a compound containing a perfluoroalkyl group. The manufacturing method of the present invention may further include a pretreatment step of removing impurities of the woven fabrics and a diffusion imparting step of treating the absorbent material before the step of applying the mixed solution.

Below is a detailed description of each step of the method for producing a sweat-absorbing comfort fabric and knitted fabric according to the present invention.

1. Pretreatment Step

The material which can be used for the production of the sweat-absorbing comfort knitted fabric of the present invention is composed of cellulose fibers such as cotton, modal, lyocell or viscose rayon, or when synthetic fibers such as nylon or polyester and cellulose fibers are mixed. It includes.

Among them, cotton fiber, which is a natural fiber, may contain primary impurities such as cotton lead, fat, pectin, protein, or ash, which are various impurities generated or attached during growth. It may also contain secondary contaminants, such as emulsions, oils, dirt, or surfactants, which are attached in the process of making products from fibers. In the case of modal, lyocell or viscose rayon, which is regenerated cellulose fibers, or nylon or polyester, which is a synthetic fiber, no primary contaminants are present, but there may be secondary contaminants which are attached during the manufacturing process. Impurities such as primary and secondary contaminants may cause a problem in the expression of sweat comfort because it prevents the absorption and diffusion of moisture such as sweat in manufacturing the sweat absorbent comfort knit fabric of the present invention. Therefore, in order to manufacture a sweat comfortable comfort fabrics, such impurities should be removed so that moisture such as sweat can be smoothly absorbed or diffused.

The method for preparing the absorbent comfort fabric and knitted fabric of the present invention may include pretreating the knitted fabric and the knitted fabric with a thermal solution containing an alkali or a surfactant to remove impurities present in the knitted fabric.

The pretreatment process will be described in detail as follows. First, an aqueous solution containing an alkali such as 0.1 to 5 g / l sodium hydroxide or sodium carbonate and 0.5 to 4 g / l nonionic surfactant or anionic surfactant is prepared. Subsequently, the knitted fabrics are treated with this aqueous solution for 30 minutes to 2 hours at a liquid ratio of 1: 5 to 1:30 and a temperature of 80 to 120 ° C. The treated knitted fabric is then neutralized with 0.2 to 2 g / l organic acid such as acetic acid or formic acid at 40 to 60 ° C. for 5 to 20 minutes. Liquor ratio refers to the weight ratio of the treatment solution to the weight of the fiber, and unless otherwise stated herein, the liquid ratio is used in this sense.

In the method of manufacturing the sweat-absorbing comfort woven fabric of the present invention, when the raw fiber uses regenerated cellulose fibers other than cotton fibers, there is no natural primary impregnated substance, so that the pre-treatment step is not performed or only a surfactant is used alone. Can be pretreated.

2. Diffusion Stage

In order to manufacture the sweat-absorbing comfort fabric and knitted fabric of the present invention, the back surface of the fabric and knitted fabric should have a function of absorbing and releasing moisture and the surface should be diffused. It is possible to make the surface have a diffusing function by going through a diffusing step of treating the knitted fabric with an absorbent material.

The diffusivity imparting step is to treat an absorbent softener, which is a material exhibiting absorbency in a knitted fabric which has undergone a pretreatment step, by a method such as an extraction method or a padding method. In this case, the absorbent softener may be a silicone softener, a polyurethane softener or a polyester softener.

In the dust reduction method, the knitted fabric is immersed in a solution containing 0.5 to 20% of the absorbent softener in a liquid ratio of 1: 5 to 1:30, and 20 to 20 at a temperature of 40 to 130 ° C. 60 minutes treatment. In the padding method, the knitted fabric is immersed in a solution containing 7 to 200 g / l absorbent softener, the excess liquid is squeezed at a pick-up rate of 70 to 100%, and 30 at a temperature of 120 to 180 ° C. It is a heat treatment for 1 to 5 minutes.

If, after the pre-treatment, there is no need for a separate treatment, this diffusion step may not be necessary in the case of a knitted fabric having high absorbency.

3. The step of providing absorption and discharge of one side

The pre-treatment removes impurities in the fibers and treats the absorbent material to impart fast diffusivity and thus has a property of rapidly absorbing and diffusing moisture such as sweat. However, when a large amount of sweat is discharged from the skin through physical activity while wearing clothing, the sweat absorbed by the fabric and knit fabric remains behind it, and it is moist and sticky. Feels unpleasant. In order to prevent this, it is necessary to prevent the water from remaining on the back side of the knitted fabric, which can be solved by treating the hydrophobic material on the back side. However, when one-sided treatment using only hydrophobic material, the wearer is also uncomfortable because strong absorption of sweat is hardly achieved. Therefore, if hydrophobic material and absorbent material are used together with one-sided treatment on the back side of knitted fabric, absorbent material absorbs moisture such as sweat and hydrophobic substance releases moisture such as sweat. As a result, moisture such as sweat absorbed from the back side of the knitted fabric is not absorbed and stays on the back side and is discharged toward the surface to diffuse. By such a principle, sweat can be actively absorbed and discharged from clothes, thereby making it possible to manufacture a sweat comfortable comfort fabric and knitted fabric that the wearer always feels dry and comfortable to wear.

The absorbing and discharging imparting step is performed by treating the reverse side of the knitted fabric which has undergone the pretreatment and diffusing imparting step with a mixed solution containing a hydrophobic substance and an absorbent substance. The mixed solution contains 5 to 100 g / l of absorbent material and 100 to 150 g / l of hydrophobic material. In this case, at least one of a paraffinic compound or a fluorine compound may be used as the hydrophobic material. The paraffinic compound may be, for example, liquid paraffin or a wet wax, and the fluorine compound may be, for example, a compound including a perfluoroalkyl group. As the absorbent material, for example, silicone-based, polyurethane-based, and polyester-based absorbent softeners can be used.

As the method for single-sided treatment of the knitted fabric with the mixed solution, a spray method, a coating method, or a method using a mangle may be used.

The spray method is a method in which a solution containing a processing agent for treatment is sprayed onto one surface of a woven or knitted fabric through a spray nozzle.

In the coating method, the viscosity of the treatment solution is increased by using a thickener, etc. in addition to the processing agent, and the throughput is controlled by applying a treatment solution to one side of the knitted fabric and scraping it with a knife or a blade. It is a way. In this case, a rotary screen coating apparatus or a knife over roll coating apparatus may be used.

The method using a mangle is applied by applying a certain amount of the process agent to the lower roller by rotating the lower roller of the mangle in a solution containing the processing agent, and pressurizing while passing the knitted fabric between the lower roller and the upper roller. The processing agent is applied to one surface in contact with the roller. In this case, a knife, a blade, a bar, etc. may be used as an apparatus for adjusting the amount of the processing agent applied to the lower roller.

The step of providing absorbent and dischargeable properties is completed by heat-treating the knitted fabric knitted on the back surface with the mixed solution for 30 seconds to 5 minutes at a temperature of 130 to 200 ° C.

The absorbent comfort fabrics and knitted fabrics prepared through the pretreatment step, the dispersibility imparting step, and the absorption / extracting imparting step of one side have the following conditions: i) the moisture transfer rate is 20% or less, and ii) the absorption of the back side measured by the dropping method of KS K 0815. The speed is 10 seconds or less.

Below, the experimental results of various examples and comparative examples of the present invention are presented and analyzed.

Examples 1-5 and Comparative Examples 1-3

Examples 1 to 5 are samples for varying the hydrophobic material concentration of the absorbing comfort material layer formed on the back surface of the knitted fabric, and were prepared by the following method. First, a single jersey knitted fabric made of 100% cotton fibers was pretreated at 95 ° C. for 1 hour with an aqueous solution containing 3 g / l sodium hydroxide and 1 g / l nonionic surfactant at a ratio of 1:20. Subsequently, the knitted fabric was immersed in 60 g / l silicone-based absorbent softener, and then extra liquid was squeezed to a pickup rate of 70%, followed by heat treatment at 160 ° C. for 3 minutes to impart diffusibility. Subsequently, one-side treatment was carried out with a treatment solution containing 100 to 140 g / l perfluoroalkylacrylate copolymer, which is a hydrophobic material, and 100 g / l, polyurethane-based absorbent softener, which is an absorbent material, on the back side of the knitted fabric. At this time, in the single-sided treatment method, the lower roller is immersed and rotated in the treatment solution, and the treated solution applied to the lower roller is pressed onto the rear face of the knitted fabric by pressing the knitted fabric while the knitted body passes between the upper and lower rollers so that the rear face goes downward. A method of causing the treatment was used.

Comparative Example 1 is a knitted fabric which was not subjected to one-sided treatment on the knitted fabric treated with the same pretreatment and absorbent softener as in Examples 1 to 5. Comparative Example 2 is a knitted fabric in which only one polyurethane 100 g / l absorbent softener is treated on one side of the back surface of the knitted fabric which has undergone the same pretreatment and absorbent softener treatment as in Examples 1 to 5 in the same manner as in Examples 1 to 5. Comparative Example 3 is a knitted fabric obtained by treating only 140 g / l perfluoroalkyl acrylate copolymer on one side.

The moisture migration rate of the Examples 1 to 5 and Comparative Examples 1 to 3, the absorption rate and the laundry durability measured by the dropping method of KS K 0815 were tested and the results are shown in Table 1. Washing durability was evaluated by measuring the moisture transfer rate and the absorption rate after washing 20 times in accordance with 103 method of JIS L 0217.

Table 1: Examples 1-5 and Comparative Examples 1-3

Referring to Table 1, first, the moisture transfer rate was measured at a specific value in the range of 4.9 to 15.3% according to the treatment concentration of the hydrophobic material in Examples 1 to 5, and 41.5% in Comparative Example 1 and Comparative Example 2, respectively. , 27.8%. The results indicate that the Examples 1 to 5 do not wet the skin and the clothes do not stick to the sweat more than the Comparative Examples 1 and 2. Absorption rate is absorbed within 10 seconds when the water drops in the case of Examples 1 to 5, Comparative Example 3 indicates that even if the water is dropped to 300 seconds after the water is dropped.

Examples 6-9 and Comparative Examples 4-7

Example 6 and Example 7 are the samples prepared from the picket tissue knitted fabric and the double jersey knitted fabric of 100% cotton fiber, respectively, The manufacturing method is as follows. First, the knitted fabrics were pretreated in the same manner as in Examples 1 to 5 and treated with an absorbent softener. Subsequently, the back side of the knitted fabric was treated with hydrophobic material 130g / l perfluoroalkylacrylate copolymer and water absorbent material 100g / l polyurethane absorbent softener in the same manner as in Examples 1 to 5 Treated.

Examples 8 and 9 are samples prepared from a waffle tissue knitted fabric containing 85% cotton and 15% polyester and a triple tissue knitted fabric containing 55% cotton and 45% polyester, respectively. The manufacturing method is as follows. First, the knitted fabrics were pretreated with an aqueous solution containing 4 g / l nonionic surfactant for 1 hour at 80 ° C. with a liquid ratio of 1:20, and then treated at 130 ° C. with a treating solution containing 10% owf of polyester-based absorbent softener. Treatment for 30 minutes gave the diffusibility. Subsequently, single side treatment was carried out in the same manner as in Examples 6 and 7.

Comparative Examples 4 to 7 are samples prepared through the same pretreatment and absorbent softener treatment process for the same knitted fabrics as Examples 6-9.

The water transfer rate, the absorption rate measured by the dropping method of KS K 0815, and the laundry durability of the samples of Examples 6 to 9 and Comparative Examples 4 to 7 were tested, and the results are shown in Table 2.

Table 2: Examples 6-9 and Comparative Examples 4-7

As shown in Table 1 and Table 2, according to the present invention, the mixed solution of the absorbent material and the hydrophobic material is treated on one side of the knitted fabric on the back side of the knitted fabric to absorb moisture such as sweat well and to keep the skin and the clothes from sticking. It can be seen that it is possible to manufacture a sweat-absorbing comfort material. It can be seen that the present invention can impart sweat comfort to various tissues such as single jersey, double jersey, piqué, waffle or triple weave.

While the invention has been described in detail by way of examples, it will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments presented without departing from the spirit of the invention. The present invention is not limited by such modifications and variations.

Claims (7)

Pretreatment of the knitted fabric with an aqueous solution containing alkali or surfactant; Immersing the pretreated knitted fabric in an aqueous solution containing an absorbent softener to impart diffusibility; And Absorbent and comfortable, comprising the step of applying an absorbing and discharging step of applying a mixed solution containing 100 to 150 g / l hydrophobic material and 5 to 100 g / l absorbent material on the back side of the knitted and knitted fabric to which the diffusibility is imparted Process for the production of knitted fabrics and knitted fabrics. delete The method according to claim 1, wherein the hydrophobic material comprises at least one of a paraffinic compound or a fluorine-based compound. The method according to claim 1, wherein the absorbent material comprises at least one of a silicone-based, polyurethane-based or polyester-based compound. The method according to claim 1, further comprising the step of heat treatment after applying the mixed solution to the back surface of the knitted fabric. Formed by the method of claim 1 to form a water-absorbing comfort material layer containing an absorbent material and a hydrophobic material on the back surface, the water transfer rate is 1 to 20%, the absorption rate of the back surface measured by the dropping method of KS K 0815 A sweat-absorbing comfort textile, knitted fabric characterized by 10 seconds. The moisture absorbing comfort material layer of claim 6, wherein the absorbent comfort material layer comprises an absorbent material and a hydrophobic material in a ratio of 1:30 to 1: 1.