KR102128257B1 - Manufacturing method of light weight nylon cloth having the transmission of humidity and water repellent function - Google Patents

Abstract

The present invention obtains a lightweight nylon fabric having moisture permeability and water repellency functions even without separate special processing such as a special film or resin coating on a surface of the nylon fabric, and provides a high-quality outdoor clothing product by using the nylon fabric having the lightweight moisture permeability and water repellency functions. The present invention braids several strands of nylon filament yarn, obtains braided non-twisted nylon yarn, obtains nylon yarn of hard twisted yarn having high twisting per unit length with the braided non-twisted nylon yarn through a twisting process (separately twisting S twisting and Z twisting), heat-treating the nylon yarn of the hard twisted yarn, obtains nylon processing yarn to heat-fix the twisting of the braided nylon filament yarn, weaves the obtained nylon processing yarn as warp and weft, differently making twisting directions of the warp and weft, weaving the same with high density, obtains a high-density nylon raw fabric, and manufactures a lightweight nylon fabric by post-processing the nylon raw fabric.

Description

Manufacturing method of light weight nylon cloth having moisture and water repellent function {Manufacturing method of light weight nylon cloth having the transmission of humidity and water repellent function}

The present invention relates to a method of manufacturing a lightweight nylon fabric having a moisture permeable and water repellent function by weaving a nylon fabrication process with light and weft yarns, and in particular, even if there is no special film or resin coating treatment for moisture permeation and water repellency on the fabric surface. , While satisfying the water repellency, to obtain a lightweight nylon fabric having excellent breathability, it is possible to obtain a high-quality outdoor clothing products using the nylon fabric.

In recent years, as interest in the well-being (Wellbeing) culture has increased worldwide attention has been focused on special functional textile products that emphasize the comfort of wearing to the human body in addition to the fashion and functionality that the clothing products should have in the past.

In particular, the sports and leisure sector is one of the most remarkable growth sectors along with global economic growth, and diversified research to achieve comfort, athletic functionality, and fashionability of functional materials with the growth of sports and leisure wear Is going on. In order to impart these functionalities to clothing, the industry is developing various functional products using various functional yarns, but it is a situation in which only products with very limited functions are produced due to limitations in the functionality that can be expressed from the yarns.

As a processing technology that can express some or all in a form that combines temperature control, light weight, elasticity, breathability, and protection from the external environment, which are mainly required functions from such sports and leisure fibers, moisture-proof waterproof coating and film laminating processing Coating technologies such as these include, in particular, these coating technologies, in addition to moisture permeability, windproofness, breathability, and thermal insulation, which are the unique characteristics of coatings, are functional according to market demands, such as elasticity, UV protection, light weight, and soft touch. In addition, it is required to develop products that emphasize more functional aspects.

In the dyeing process of nylon and polyester ultra-thin paper synthetic fiber, which is the current global trend, there is a workability problem due to the facilities at the time of processing due to the physical properties of the yarn and the fabric, and a decrease in strength occurring in the process, various fastnesses, and the left and right of the fabric Due to problems such as color difference, existing dyeing processing companies are having a lot of difficulties.

On the other hand, the moisture-permeable waterproof material was developed in the mid 1960s by mixing calcium chloride fine powder with resin and coating it on the fabric, followed by elution from the water. This product has excellent moisture permeability, but feels leaky and cold due to pinholes. It was not able to settle in the market for reasons such as curing and weight of the product. As the GORE-TEX was developed in the 1970s, the basic principle of the moisture-permeable waterproof material was represented by forming a microporous film on the fabric by laminating the PTFE film presented by GORE-TEX, and in 1979, Toray, Toray, Japan. After the commercially available coating product with a microporous coating by a wet process was launched, the world's moisture-permeable waterproof fabric market began to grow rapidly.

In the early 1980s, a moisture-permeable waterproof fabric using a special yarn rather than a post-processing technology to increase the density of the fabric itself was developed by Toyobo (split type composite fiber) and Teijin (polyester microfiber). Although it competed with the product, it was established as a material that emphasized the emotional aspect after being disadvantageous in terms of functionality, and in the 1990s, laminating products and functional dry coatings entered the growth and maturity stages. Introduced. Since 2000, global environmental regulations have been strengthened to reduce solvent-based coatings and laminating products. Research and development on'Water borne type', TPE film, and hot melt adhesives has been in full swing and has grown. PU polymer' coating has been introduced, and Nextec in the United States has developed and released a product called'EPIC' using silicone materials.

In Korea, in 1984, Kolon's wet coating method'HIPORA' was continuously researched and developed, and dry coating and transfer coating were widely distributed. Recently, various types of moisture-permeable waterproof fabrics using laminating technology have been developed.

As such, the functionality of the moisture-permeable waterproof fabric has been developed in various ways according to the trend of the times. In the early stages of development, emphasis was placed on efforts to improve basic functions such as water pressure resistance and moisture permeability. Afterwards, it was a direction to add new functions such as heat retention and elasticity, but in the mid to late 80s, there was a demand for sensitivity at the same time as pursuing functions. At this time, in terms of function, suppression of condensation of the coating film layer has become an important task, and absorption and waterproofing technology using natural polymer raw materials has been developed, and ceramic application technology that can heat/dissipate when irradiated with sunlight is also introduced. .

Among these existing developed products, the PTFE film represented by Gore-tex has serious curing problems due to high price and change over time, and in the case of Sympatex, a hydrophilic non-porous film, it has poor wearability due to condensation problems and Nano-web products. In the case of moisture permeability is good, but the water pressure is low, and in the case of solvent-type coating products, various shortcomings such as lowering of fastness and environmental pollution are continuously elicited, thereby increasing the demand for improvement.

Accordingly, in the Republic of Korea Patent No. 10-0829459 as a method of manufacturing a porous moisture-permeable waterproof fabric without the use of an organic solvent, (a) fabric preparation process (b) process of water-repellent treatment with a fluorine-based water repellent (c) hot air (D) Calendering process (e) Process of coating polyurethane coating composition on one side of the calendered fabric by knife over roll coating method or floating knife coating method (f) Drying and curing Process (g) Process of eluting the water-soluble polyurethane by immersing the fabric in water at 50-80°C, and (h) drying the fabric at 100-180°C, then water-repelling it using a fluorine-based water repellent agent to form a fine porous polyurethane membrane. By presenting a method for obtaining the formed porous moisture-permeable waterproof fabric, it not only provides excellent moisture permeability, waterproofness, breathability, etc., but also prevents condensation and provides a porous moisture-permeable waterproof fabric that is excellent in comfort and functionality when worn.

In addition, in the Republic of Korea Patent No. 10-1045642 using a coating composition containing an ultra-high molecular weight moisture-curable polyurethane resin is coated on fiber cloth made of polyester, nylon, cotton and composite fabrics using the coating method, just before coating Alternatively, immediately after coating, the fiber wrapper is immersed in a mixed solution containing water, a hydrophilizing agent, or a mixture thereof, subjected to a hydrophilization treatment, and then picked up at 30 to 80% to dry and harden. By presenting a method for producing an excellent polyurethane coated forge, there has been provided a polyurethane coated forge having excellent rebound resilience and anti-wrinkle effect, excellent moisture permeability and breathability, and having a soft texture. In addition to the difficulty, there is a fear that the thickness of the coating layer is essentially thick by coating directly on the fabric, thereby deteriorating breathability and touch.

In the case of the breathable moisture-permeable waterproof fabric commonly used as described above, or in the case of the moisture-permeable waterproof fabric described in Patent Documents 1 and 2, a special film or polyurethane for a separate moisture-permeable waterproof function on the fabric to satisfy the moisture-permeable waterproof function As a means for forming a film, the function of waterproofing can be satisfied, but condensation occurs due to lack of breathability, that is, moisture permeability. In particular, when used for a long time, the special film or polyurethane film is damaged or separated, and the waterproofing function is also deteriorated.

In addition, there were disadvantages such as high processing technology and cost increase in the processing work of forming a special film layer or polyurethane film for moisture permeation and waterproofing on the fabric surface, and the lightness of the fabric is reduced due to processing.

Patent No. 10-0829459 "Perforated moisture-permeable waterproof fabric and its manufacturing method" Patent No. 10-1045642 "Polyurethane coated forge having moisture permeability and breathability and method for manufacturing the same"

The present invention obtains a lightweight nylon fabric having moisture permeability and water repellency even without special processing such as a special film or resin coating on the surface of the nylon fabric, and uses high quality nylon fabric having the moisture permeability and water repellency function. To provide outdoor clothing products.

As a means for solving the above problems, the present invention is obtained by combining several strands of nylon filament yarns to obtain unleaded lead-free nylon yarns, and twisting the braided lead-free nylon yarns through a twisting process is very high. To obtain the nylon yarn of (S twist, Z twist twist separately), heat-treated the nylon yarn of the lecture, to obtain a nylon yarn with a twisted twist of the nylon filament yarn, and weaving the nylon processing obtained above as a warp yarn However, while varying the twist direction of the warp and weft, weaving with high density, obtaining a high-density nylon raw support end, and post-processing the nylon raw support end to produce a lightweight nylon fabric to be provided in the present invention.

The present invention combines several strands of nylon filament yarn to obtain a plied lead-free nylon yarn, and obtains a twisted nylon yarn having a very high twist per unit length through the twisting process of the plied lead-free nylon yarn (S twist, Z twist twisted separately), by heat-treating the nylon yarn of the lecture, to obtain a nylon fabrication process in which the twisted yarns of the nylon filament yarn are heat-fixed, and weaving the nylon fabrication process obtained above as a warp yarn, but inclining and twisting the weft direction of the weft yarn. At the same time, it is woven at a high density, obtains a high-density nylon live support stage, and post-processes the nylon live support stage, allowing moisture and water repellent even if there is no special special processing such as a special film or resin coating on the surface of the nylon fabric. It has the effect of obtaining a light-weight nylon fabric having a, and providing a high-quality outdoor clothing product using the lightweight moisture-permeable and water-repellent nylon fabric.

1: Illustrative view of nylon filament yarn used in the present invention
Figure 2: State diagram of the lead-free nylon yarn incorporating the filament yarn of Figure 1
Figure 3: State of the lead-free nylon yarn of Figure 2 in a twisted S twist
Figure 4: State of the lead-free nylon yarn of Figure 2 in a twisted Z twist
Figure 5: Illustrative view of lightweight nylon fabric obtained in the invention (photo)
Figure 6: State diagram of dropping water in the state of Figure 5 (photo)
Figure 7: State diagram of dispersing water droplets in the state of Figure 6 (photo)

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is to produce a nylon fabric that satisfies the moisture permeability and water repellent function even if the special special resin for moisture permeation and water repellency is not processed on the surface of a separate nylon fabric for the moisture permeability and water repellent function. It consists of a weaving stage of a nylon life support group that weaves the processed nylon processing work as a weft yarn, and a light weight nylon fabric production step that has a moisture-repellent and water-repellent function that is produced by post-processing the nylon life support group.

The production of nylon processing is as follows.

Several strands of nylon filament yarns 1 are joined to obtain lead-free nylon yarns 2 having a desired thickness.

Lead-free nylon yarn (2) thickness, i.e., denier (d) is used to select from 15 to 200 denier (d), in the embodiment of the present invention 40 denier lead-free yarn of 13 strands of nylon filament yarn (1) Nylon yarn (2) was applied.

In the above, if the thickness of the lead-free nylon yarn 2 is 15 denier (d) or less, it is too thin and difficult to weave, and if it is 200 denier (d) or more, it is not preferable because the water-repellent function is poor.

The 40 denier lead-free nylon yarn (2) obtained above was twisted with a twisting machine, and then twisted with a lecture to prepare a nylon yarn (3).

The number of twists of the nylon yarn 3 of the lecture was set to 800 to 2500 T/M, but in the embodiment of the present invention was set to 1500 T/M.

In the above, if the nylon yarn 3 of the lecture is 800 T/M or less, the moisture permeability and water repellent function is deteriorated, and if it is more than 2500 T/M, it is not only difficult to twist, but even if the twist is increased, the effect of moisture permeation and water repellency does not increase. Do not.

The twist applied to the lead-free nylon yarn 2 in the twisting process is a twisted nylon yarn (3) (3') in two types of twist: "S" twist (right) and "Z" twist (left). Prepare separately.

By heat-treating the nylon yarn 3 of the twisted yarn obtained at 1500 T/M obtained above, heat-fixing several strands of the filament yarn 1 to obtain a heat-fixed nylon fabrication 4.

Heat treatment conditions are as follows.

In the case of nylon fiber (nylon 6), since the melting temperature is 215°C and the glass transition temperature is generally low at about 45°C, the nylon yarn (3) of the lecture is about 1 while maintaining the temperature of the heat treatment section at 150-200°C. When it is allowed to pass through heat treatment for ~2 seconds, the properties change through the influence of the low glass transition point, and the nylon yarn of the lecture that passed through the heat treatment part is naturally cooled, and the twist is fixed during the cooling process, so that the heat is fixed and heated. Nylon processing (4) is obtained.

Weaving the heat-fixed nylon processing (4) obtained in the above with a warp (WP) and weft (WF) to obtain a high-density nylon support group.

The weaving condition of the nylon support group is woven at a high density of inclination density 120-200 ol/IN, weft density 110-180 ol/IN, but in the embodiment of the invention, as 40 denier (d), inclination density 144 ol/IN, weft Density 134 ole/IN, plain woven.

In the above, the density of the light and weft yarns becomes higher when it is a fine thread, and lowers when it is a thick thread.

In addition, in the case of the fabric tissue, the fabric may be woven from other tissues such as twill.

In the above, the twisting directions of warp and weft yarns are woven differently.

That is, when the heat-fixed nylon fabrication 4 used as a slope is twisted as "S", the heat-set nylon fabrication 4'used as a weft yarn is set as a "Z" twist.

Also, heat-set nylon processing used as a ramp (4)(4') is repeatedly arranged with nylon processing with "S" twist and nylon processing with "Z" twist, and the weft also has nylon processing with "S" twist Wow, it is also possible to weave nylon fabrics with "Z" twists in a repeat arrangement. However, it is not necessary to use the same nylon twisting process for all the inspectors.

After the nylon life support woven fabric is woven under the above conditions, a lightweight nylon fabric 20 that satisfies the water vapor transmission and water repellent functions to be provided in the invention is obtained.

The post-processing of the nylon life support stage 10 is briefly described below, although the process is generally performed in the textile processing field.

First, through the refining process, the dye or the contaminants applied to the nylon fabrication process (4) and the nylon support group (10) in the weaving preparation process or the weaving process are removed, so that the dyeing process is smoothly performed.

When the refining is completed, it is washed with water using a continuous washing machine, and then dried under a condition of 30 to 60 m/min at 120 to 200°C with a tenter.

After refining, washing and drying the dyed nylon support group with a desired color through a dye dyeing machine as described above, washed with water and expanded, then dried with a tenter at 150 to 210°C under conditions of 30 to 60 m/min.

Finally, the dried nylon life support group is finally subjected to water-repellent treatment to obtain a lightweight nylon fabric 20 having moisture-repellent and water-repellent functions to be provided in the present invention.

Several types of water repellents are used in the water repellent treatment, but in the embodiment of the present invention, a fluorine-based water repellent was used. After passing the nylon life support layer in the dilute water-repellent treatment solution in which the fluorine-based water repellent was diluted, 150 to 205 A lightweight nylon fabric 20 having moisture permeability and water repellency to be provided in the present invention is manufactured by expanding and drying while passing a tenter group of ℃ at a speed of 20 to 45 m/min.

The lightweight nylon fabric 20 manufactured as described above, in the process of weaving the nylon fabric 20, obtains a lead-free nylon yarn 2 made of a plurality of nylon filament yarns 1, and the lead-free nylon yarn (2) is twisted by twisting conditions of 800~2500T/M through a twisting machine, and the nylon yarn of the twisted steel is heat-treated at 150~200℃ for 1~2 seconds in a heat treatment section, and then cooled to heat and twist the steel. By doing so, a rough texture of nylon processing is obtained.

Weaving the nylon processing work of the lecture through a loom, weaving a high-density nylon life support group, but weaving under the conditions of 120 to 200 ol/IN of warp density and 110 to 180 ol/IN of weft density.

Particularly, in the weaving process, because the twisting direction of the warp yarn and the twisting direction of the weft yarns were used, the gap between the warp yarn abutment point was minimized, so that the moisture permeation was smooth, but the water repellency was maintained. Excellent water repellency can be obtained through the water repellent treatment carried out in (See FIGS. 6 and 7)

As a result of measuring the water repellency tested by the Apparel-related Testing Research Institute, the water repellency of the lightweight nylon fabric immediately after processing was measured as level 5 (100), and the water repellency after washing 5 times was also level 4 (80), maintaining good water repellency It was measured to be. Particularly, in the case of the present invention, the nylon processing used as the warp yarn is heat-set, so that a rough texture is maintained, and thus, in the case of the woven fabric, the tissue is not pushed or collapsed, and there is almost no shape deformation.

Therefore, in the case of the lightweight nylon fabric obtained in the invention, heat-treated nylon yarns are heat-treated to obtain heat-treated nylon processing without undergoing a separate special resin treatment process for moisture permeation and waterproofing as in the prior art, and the twist direction (S twist, High-density weaving in plain weave using nylon processing with different twists and twists, and a lightweight process with excellent moisture permeability and water repellency is obtained with a simple process of water repellent, and the high quality of moisture permeability and water repellency is excellent by using the nylon fabric. You will be able to obtain outdoor clothing products.

(1)--Filament Corporation
(2)--Lead-free nylon yarn
(3)--Lecture nylon yarn (S twist)
(3')--Lecture nylon yarn (Z twist)
(4)--Heat-fixed nylon yarn (S twist)
(4')--Heat-fixed nylon yarn (Z twist)
(20)--Lightweight nylon fabric
(21)--Water Drop

Claims (4)

The nylon filament yarn was combined to obtain a lead-free nylon yarn, and the lead-free nylon yarn was twisted under the conditions of 800 to 2500 T/M, and the twisted nylon yarn of "S" twist and the twisted nylon yarn of "Z" twist Obtaining, heat-treating and cooling the nylon yarn of the lecture to obtain a heat-fixed nylon fabrication process, and weaving the nylon fabrication process as a warp yarn, but at the same time varying the twist direction of the warp and the twist direction of the weft, and Weaving and water repellency are characterized by weaving the weft density to a high density to obtain a nylon life support group that minimizes the gap between the warp yarn abutment points, refining, dyeing and washing the nylon life support group, and then water-repelling it with a water repellent agent. Lightweight nylon fabric manufacturing method. The method of claim 1, wherein the twist direction of the warp and weft yarns is different, but the nylon processing of the warp yarn with "S twist" and the nylon processing of the "Z twist" are repeatedly arranged, and the nylon with the weft yarn of "S twist" A method of manufacturing a lightweight nylon fabric having moisture repellency and water repellency, characterized by repeatedly arranging the construction and the nylon processing made of "Z twist". According to claim 1, characterized in that the thickness of the nylon processing used as warp and weft is 15 to 200 denier (d), the warp density is 120 to 200 ol/IN, and the weft density is 110 to 180 ol/IN. A method of manufacturing a lightweight nylon fabric having moisture permeability and water repellency. The method for manufacturing a lightweight nylon fabric having moisture permeability and water repellency according to claim 1, characterized in that the tissue weaving using nylon processing as a warp yarn is plain weave, and the water repellent is a fluorine-based water repellent.

Images