KR101699162B1

KR101699162B1 - Method for producing functional fabrics which are incombustible, water repellant, pollutant repellant, and solar resistant and fabrics produced upon such method

Info

Publication number: KR101699162B1
Application number: KR1020150075900A
Authority: KR
Inventors: 김진석; 박충렬
Original assignee: (주) 정산인터내셔널
Priority date: 2015-05-29
Filing date: 2015-05-29
Publication date: 2017-01-23
Also published as: KR20160139948A

Abstract

The present invention relates to a method for fabricating a textile yarn, comprising the steps of: spinning an acrylic yarn with a modacrylic yarn; fabricating the yarn by weaving the yarn to form a fabric; dyeing the fabric; The present invention also relates to a method for manufacturing a functional fabric comprising the steps of:

Description

TECHNICAL FIELD [0001] The present invention relates to a method for producing a functional fabric having flame retardancy, water repellency, fogging, and weather resistance using an acrylic material, and a method for fabricating the functional fabric,

The present invention relates to a method of producing functional fabrics having flame retardancy, water repellency, fogging and weather resistance using an acrylic material, and more particularly, to a method for producing functional fabrics having flame retardancy, water repellency, fogging and weather resistance using acrylic materials used for exterior, To a method of manufacturing a functional fabric and a fabric produced thereby.

The outdoor market has grown tremendously, as many people have been regularly exercising for health and increased interest in leisure.

Outdoor clothing is mostly worn during outdoor sports such as mountain climbing and golf, and various functions are required. In the past, if you were interested in trendy design, active materials considering stretchy materials and high quality fabrics in the past, outdoor clothing needs various functions such as anti-pollution treatment for hygiene and ultraviolet protection for skin protection .

In order to satisfy such a function, conventionally, a dyeing process or a processing process has been carried out using a bathing process and a separate process, which is not easy to control and has low reliability in functionality. And regulations on chemicals are strengthened and there is a problem about harmful substances.

Korean Patent Laid-Open No. 10-2015-0034962 discloses a coating composition containing a flame retardant styrene resin, a resin layer coated with the coating composition, a composite functional cover fabric having high durability water repellent performance, and a method for producing the functional cover fabric &Quot; However, when a large amount of a flame retardant is used to secure flame retardancy in a fabric, the light resistance is lowered, and there is a problem of dye tarring contamination and uneven salt.

Further, in the conventional functional fabric manufacturing process, there is a problem that the performances of the respective chemicals simultaneously or separately are unsatisfactory due to the performance of flame retardance, water repellency, Permeability and surface unevenness.

KR 10-2015-0034962 A

SUMMARY OF THE INVENTION The present invention provides a method for producing a functional fabric having flame retardancy, water repellency, fogging, and weather resistance.

According to an aspect of the present invention, there is provided a method of fabricating a functional fabric, the method comprising: folding an acrylic yarn with a modacrylic yarn; Fabricating the fabric by weaving the folded yarn; Dyeing the fabric; And coating and dying the dyed fabric with liquid silicone rubber.

According to an embodiment of the present invention, it is preferable that the acrylic yarn and the modacrylic yarn are 2-denier circular or modified cross-section yarns.

According to an embodiment of the present invention, the modacrylic spun yarn preferably contains 35 to 85% of acrylonitrile.

According to an embodiment of the present invention, it is preferable that the warped yarns represent triangular, elliptical, flat, dumbbell-shaped, Y-shaped, or star-shaped deformed sections.

According to an embodiment of the present invention, the step of dying the fabric is preferably performed at a pH of 2.5 to 3.5 and an initial temperature of 25 to 35 ° C as dyes for CDP (cation dyeable polyester) fibers.

According to one embodiment of the present invention, the step of dyeing the fabric is preferably performed after raising the temperature by 1.8 to 2.2 ° C per minute, staining at 95 to 105 ° C, and then cooling.

According to an embodiment of the present invention, the step of coating and surface treatment is preferably a dry coating method using the liquid silicone rubber as a primary and secondary coating liquid.

According to an embodiment of the present invention, the liquid silicone rubber is preferably a liquid silicone rubber in which a vinyl functional group and a methylhydrogen group are cured by an addition curing reaction in the presence of a platinum catalyst.

The present invention as described above has an effect of producing a fabric suitable for an exterior or outdoor so that the functional fabric has flame retardancy, water repellency, fogging, and weather resistance.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms including ordinals such as first, second, etc. may be used to describe various elements, but the elements are not limited by such terms. These terms are used only to distinguish one component from another.

When an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may be present in between . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, or a combination thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

According to an embodiment of the present invention, there is provided a method for fabricating a functional fabric having flame retardancy, water repellency, fogging, and weather resistance using an acrylic material, comprising the steps of: folding an acrylic yarn with a modacrylic yarn; A step of fabricating, a step of dying the fabric, and a step of coating and surface-treating the dyed fabric.

The step of joining an acrylic yarn with a modacrylic yarn is a step of twisting an acrylic yarn and a modacrylic yarn together into a single yarn.

The acrylic spun yarn may be a 2 denier circular or irregular cross-section yarn, and may be of 31 MM to 51 MM type. Acrylic yarns have wavy bending and can be bulk processed.

The modacrylic yarn may also be used in the same material as the acrylic yarn, and may be of the type 31MM to 51MM. The modacrylic spinning yarn may be one having a Limiting Oxygen Index (LOI) of 29 or more and containing 35 to 85% of acrylonitrile.

The acrylic yarn and the modacrylic yarn are folded together to give twisted yarns of 300 to 500 (Twist multiplier), and the yarn is stiff and soft. The cross-linked yarns can be formed into triangular, elliptical, flat, dumbbell-shaped, Y-shaped and star-shaped cross sections. This modified cross section is excellent in surface coating property when the fabric is woven and dyed with a spun yarn so as to be dyeable well.

The step of weaving the folded yarn is a step of weaving the combined material of an acrylic yarn and a modacrylic yarn into a fabric.

The step of weaving the folded yarn may vary depending on the intended use of the functional fabric, which is the final product.

Fabrics woven with such acrylic yarns and modacrylic yarns in combination with yarns exhibit a very high tomorrow luminosity. Therefore, it is not necessary to treat with a sunlight-enhancing agent or a separate processing, and is suitable for use as an exterior or an outdoor.

And, the fabrics woven with the mixed yarn are flexible because they have low initial elasticity, and the elastic recovery rate can be recovered up to 80 ~ 99% by TM, so that the fabric can be kept stable without being deformed. In addition, since the wrinkles are less likely to occur and the wrinkles are easily unfolded, the change in shape is small, and when the crimp is imparted, the warmth can be increased with increasing the amount of grip.

The step of dyeing the fabric is a step of coloring the fabric, which can be dyed with dyes for CDP (cation dyeable polyester) fibers. The step of dyeing the fabric may be performed at an acidity of pH 2.5 to 3.5, and dyeing may be performed by adding a leveling aid for the dye. The leveling aid of the dye is not limited as long as it is suitable for dyes for CDP fibers, but Lyocol RDN can be used. The initial temperature of the dyeing step is about 30 ° C, and the temperature is raised to 2 ° C per minute. After dyeing at about 100 ° C for 30 minutes, it is cooled. By staining under the above conditions, color reproducibility and uniformity are excellent.

Since the fabric is formed of acrylic material, it is possible to secure the flame retardancy of the conventional tomorrow even if dye, flame retardant, and sunlight enhancer are not added at the stage of dyeing. Therefore, it is possible to exhibit high luminosity without using sunlight anthraquinone type dyes, tamaric dispersants, and sunlight enhancers composed of a benzotriazine system and a benzotriazole system.

The step of coating and surface treating the dyed fabric is a step of coating a liquid silicone rubber (LSR) on the fabric. In the step of coating the liquid silicone rubber, the coating process can be carried out through a method of dry coating the addition type silicone rubber.

The liquid silicone rubber may be a liquid silicone rubber in which a vinyl functional group and a methylhydrogen group are cured by an addition curing reaction in the presence of a platinum catalyst. In order to improve heat resistance and flame retardancy, aluminum hydrate (Alumina hydrate), titanium dioxide, silica, or the like.

The LSR coated on the functional fabric according to one embodiment of the present invention is configured as shown in the following table, and the blending ratio can be changed according to the use of the functional fabric.

division Configuration Ratio (wt%)

parte

Dimethyl siloxane, dimethylvinyl-terminated 30 to 60 Alumina hydrate 30 to 60 Trimethyl silica <10 Dimethylvinylated and trimethylated silica <10 Platinum Catalyst <1

part B

Dimethyl siloxane, dimethylvinyl-terminated 30 to 60 Dimethyl, methylhydrogen siloxane 30 to 60 Alumina hydrate <10 Trimethyl silica <10 Dimethylvinylated and trimethylated silica <1

By coating LSR on the fabric of acrylic material, fabrics excellent in flame retardancy, heat resistance, antifouling property and light fastness suitable for outerwear and outdoor can be manufactured.

The step of coating the dyed fabric may be performed by a dry coating method using a release paper using primary and secondary coating liquids. The dry coating method is a quick-drying type, fully cured and dried, and then the interface between the release paper and the primary coating is peeled off to coat the LSR on the surface.

The present invention may be better understood by the following examples, which are for the purpose of illustrating the invention and are not intended to limit the scope of protection defined by the appended claims.

[Example 1]

As a method for fabricating a functional fabric having flame retardancy, water repellency, fogging and weather resistance using the acrylic material of the present invention, the ratio of acrylic yarn to modacrylic yarn was 1: 9, and fabric was fabricated to prepare a dye coating.

[Example 2]

In the same manner as in Example 1, the ratio of the acrylic yarn to the modacrylic yarn was set to 5: 5, and yarns were fabricated to prepare a dye coating.

[Example 3]

In the same manner as in Example 1, the ratio of the acrylic yarn to the modacrylic yarn was 1: 1, and the yarn was fabricated to prepare a dye coating.

The physical properties of the functional fabric prepared in Examples 1 to 3 are shown in Tables 2 and 3 below. As shown in the following table, the functional fabric produced by the present invention exhibits excellent physical properties in terms of flame retardance, water repellency, antifouling property and heat resistance.

division

Contents

Property value
Vertical flame retardancy
Heat emission
Antifouling

Smoke density
Example 1

Acrylic (1) + Modacrylic (9) + LSR
Pass
Pass
8-10
Pass
Example 2

Acrylic (5) + Modacrylic (5) + LSR
Pass
Pass
8-10
Pass
Example 3

Acrylic (1) + Modacrylic (1) + LSR
Pass
Pass
8-10
Pass

division

Contents

Property value
Adhesiveness

Flammability
Heat resistance
Light resistance
Example 1

Acrylic (1) + Modakrill (9) + LSR
2.0 to 3.5
Pass
4 to 5
4 to 5
Example 2

Acrylic (5) + Modakrill (5) + LSR
2.0 to 3.5
Pass
4 to 5
4 to 5
Example 3

Acrylic (1) + Modakrill (1) + LSR
0.4 to 1.3
Pass
4 to 5
4 to 5

Table 4 shows the results of physical property test authentication for Example 1 of the present invention. As shown in the table, it can be confirmed that the functional fabric according to one embodiment of the present invention satisfies the physical properties required in outdoor and exterior of Europe.

TEST UNIT RESULT METHED
Heterogeneity

U%
2%
KS K ISO 16549
Dimensional stability

%
-0.40%
KS K 0558
Water repellency

4+
KS K 0590
Antifouling

Class
10
KS K ISO 14419
Room dominance

pass / fail
pass
KS K 0593

Fastness

Light fastness
class
4+

ISO 105-B02
friction
Fastness

key

class 4 to 5

KS K 0650

Wet

class
4 to 5
Sun Protection Factor

UPF
50+
KS K 0850 BS
7914M

Flammability

mm / min
SE
GMW 3232: 2011
Weatherability (service life)

class
6+
ISO 105-B04

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

Claims

Folding an acrylic yarn and a modacrylic yarn;
Fabricating the fabric by weaving the folded yarn;
Dyeing the fabric; And
And coating the dyed fabric with liquid silicone rubber.

The method according to claim 1,
Wherein the acrylic yarn and the modacrylic yarn are 2-denier circular or modified cross-section yarns.

3. The method of claim 2,
Wherein the modacrylic spun yarn contains 35 to 85% of acrylonitrile.

The method according to claim 1,
Wherein the folded yarn has a triangular, elliptical, flat, dumbbell, Y or star shape.

The method according to claim 1,
The step of dying the fabric comprises:
Characterized in that the dye is a dye for cationic dyeable polyester (CDP) fiber and has a pH of 2.5 to 3.5 and an initial temperature of 25 to 35 ° C.

6. The method of claim 5,
The step of dying the fabric comprises:
Wherein the temperature is raised by 1.8 to 2.2 DEG C per minute, followed by dyeing at 95 to 105 DEG C, followed by cooling.

The method according to claim 1,
Wherein the coating step comprises:
Characterized in that the liquid silicone rubber is used as a primary coating solution and a secondary coating solution to form a dry coating process.

The method according to claim 1,
The liquid silicone rubber is a liquid silicone rubber,
Wherein the vinyl functional group and the methyl hydrogen group are liquid silicone rubber which is cured by addition curing reaction in the presence of a platinum catalyst.