KR20200107244A - Fabric processing method to give complex function - Google Patents

Abstract

The present invention relates to a method of processing complex functional fabrics. The method of processing complex functional fabrics comprises: a fabric manufacturing step of preparing a fabric by mixing 20 to 70% by weight of flame-retardant yarn and 30 to 80% by weight of ordinary yarn; an antibacterial deodorant step of attaching an antibacterial deodorant selected at least from the group consisting of inorganic metal, organometallic, anilide, quaternary ammonium salt, amphoteric and nonionic surfactant, guanidine, glycol, phenol, imidazole and thiazole, isothiazolinone, nitrile, iodine, fluorine, sugar, and complexes thereof to the fabric at 0.1 to 0.5 o.w.f; and a water and oil repellent step of applying a fluorine-based water and oil repellent agent to the fabric at a concentration of 4 to 40 g/L and a pickup rate of 70 to 100% and curing at 160 to 190°C for 3 to 10 minutes.

Description

Fabric processing method to give complex function {Fabric processing method to give complex function}

The present invention relates to a method for processing a multifunctional fabric, and to a method for processing a fabric in which functions such as dyeability, flame retardancy, sound absorption and antibacterial properties can be expressed in a complex manner.

In order to improve or impart the function of the fabric, various functional materials and methods of processing the same on the fabric have been proposed. For example, it is antibacterial, deodorant, deodorant, flame retardant, flame retardant, waterproof, water repellent, oil repellent, etc.

Various materials and treatment methods have also been proposed to impart the above functionality to fabrics, but their conditions are individual methods for imparting individual functionality to fabrics.

Therefore, in imparting the above functionality to the fabric, a number of processes must be repeated in order to impart a complex function. Repetition of such a process has a problem in that the use of excessive sanctions is forced due to the conflict of prescription conditions, and adverse effects occur with each other, even if the productivity decrease is excluded. In particular, there is a problem in that the flame-retardant and water-repellent properties cannot be exhibited when the two processes are used at the same time because different chemical actions are conflicting.

Therefore, in assigning multiple functions to one fabric, the need for a single process or a complex process was requested, and in this case, the need for an appropriate processing method that does not hinder each other's functions was required.

In order to solve the above problems, an object of the present invention is to provide a fabric processing method capable of imparting complex functions.

It is also an object of the present invention to provide a suitable processing method in which the complex functions do not reduce the functionality of each other.

In the present invention, in the processing method of a multifunctional fabric, a fabric manufacturing step of producing a fabric by mixing 20 to 70% by weight of flame-retardant yarn and 30 to 80% by weight of ordinary yarn; Inorganic metal, organometallic, anilide, quaternary ammonium salt, amphoteric and nonionic surfactant, guanidine, glycol, phenol, imidazole and thiazole, isothiazolone, nitrile, iodine, fluorine , Antibacterial deodorant step of attaching one or more antibacterial deodorants selected from the group consisting of sugar-based and complexes thereof to the fabric at 01 to 05 owf; And a water and oil repellent step of applying a fluorine-based water and oil repellent agent to the fabric at a concentration of 44 to 40 g/L and a pickup rate of 70 to 100% and curing at 160 to 190°C for 3 to 10 minutes. Provides a method of processing functional fabrics.

In addition, the fabric is formed of an upper fabric layer and a lower fabric layer formed of low melting point yarn, and an intermediate pile yarn layer formed as a pile is formed on the upper fabric layer, the thickness of the fabric is 1 to 50 mm, and the intermediate pile The density of the pile of the four layers is 20 to 80 CPI, and the intermediate pile yarn layer and the lower fabric layer provide a processing method of a composite functional fabric, characterized in that the sound absorption properties are improved.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts represent the same reference numerals as possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially" and the like are used at or close to the numerical value when manufacturing and material tolerances specific to the stated meaning are presented, and are used in the sense of the present invention. To assist, accurate or absolute figures are used to prevent unfair use of the stated disclosure by unscrupulous infringers.

As used herein, the term "fabric" is used to include all of an article manufactured by weaving or knitting, a nonwoven fabric, and a fibrous web.

The present invention relates to a fabric having a complex function by antibacterial deodorization processing and water-repellent oil-repellent processing on a fabric made of flame-retardant yarn and ordinary yarn.

As shown in Figure 6, the functionality can be combined by a processing method including a fabric manufacturing step, a flame retardant step, an antibacterial deodorizing step, and a water and oil repellent step.

The flame-retardant yarn is a thread made of flame-retardant fiber, which burns when the fiber is in contact with the flame, but when the flame is removed, it refers to a thread that prevents or suppresses combustion while generating a flame by itself. In other words, it refers to a fiber that does not prevent the thread itself from burning but loses its ability to propagate fire, and instead of flame retardant, terms such as flame retardant, fire retardant, and smoke retardant are also used. Flame-retardant yarns are generally those with a limiting oxygen index (LOI) of 27 or more.

The principle of imparting flame retardancy to fibers is a method of imparting flame retardancy by reducing the amount of combustible gas and increasing the amount of residual carbides by changing the pyrolysis path of the fibers (i.e., the method of imparting flame retardancy by reducing combustible substances and increasing carbides. ) And a method of giving flame retardancy by changing the combustion method (that is, the pyrolysis process is constant regardless of whether or not a flame retardant is added, but it has a flame retardant function by changing the combustion method of the flame).

Based on the timing of imparting flame retardancy to fibers, the method by post-treatment after the fibers are made, the method of adding a flame retardant in the spinning step to form fibers, and the component having flame retardancy in the step of preparing a polymer for fibers (mainly in the polymerization step). And a method of copolymerizing with a monomer containing. In general, in the case of natural fibers, flame retardancy is imparted by a post-treatment method because flame retardancy cannot be imparted in the spinning step or polymerization process, whereas in the case of synthetic fibers, flame retardancy is generally imparted in the spinning step.

Flame-retardant of fiber products by additives includes a method of filling an inorganic material and a method of adding an organic flame retardant. In the case of industrial fiber materials, the method by adding a flame retardant is generally the mainstream.

Organic flame retardants are compounds containing halogen atoms such as boron (B), nitrogen (N), phosphorus (P), antimony (Sb) and chlorine (Cl) and bromine (Br). There is a synergistic effect between these flame retardant imparting atoms. The synergistic effect of nitrogen and phosphorus atoms, and the synergistic effect of halogen (chlorine, bromine) and antimony atoms are known.

The flame-retardant yarn used in the present invention may be natural fiber, regenerated fiber, or synthetic fiber, and in the case of natural fiber, a flame retardant may be added to provide flame retardancy by a post-treatment method, and the recycled fiber or synthetic fiber may be produced after the fiber is made. A method by treatment, a method of adding a flame retardant in the spinning step, a method of copolymerizing a monomer containing a flame retardant component in the polymerization step, etc. can be used, but a flame retardant is added during the spinning step or the polymerization process for permanent flame retardant performance. How to make it would be desirable.

The general yarn mixed with the flame-retardant yarn may use natural fibers, recycled fibers, synthetic fibers, and the like, depending on the purpose or method of use of the fabric.

The mixing ratio of the flame-retardant yarn and the general yarn may be used by mixing 20 to 70% by weight of the flame-retardant yarn and 30 to 80% by weight of the ordinary yarn. The amount of the flame-retardant yarn used may vary depending on the importance of flame retardancy depending on the purpose of use or the place of use, but if it exceeds 70% by weight, the effects of the antibacterial deodorization processing and water-repellent oil-repellent processing described below may be reduced.

In order to further increase the flame retardancy of the composite functional fabric according to the present invention, the flame retardancy may be further improved by performing a flame retardant step of treating the fabric with a flame retardant after fabric manufacture.

The flame retardant is preferably a nitrogen-based phosphorus compound or an organophosphorus compound, and FLOVAN CGN (manufactured by Huntsman) is preferably used for the flame retardant of a nitrogen-based phosphorus compound. In general, if the flame retardant processing and the water and oil repellent processing are processed on the same fabric, the effect of the two processing decreases, but the FLOVAN CGN does not significantly degrade the efficacy of the water and oil repellent used in the water and oil repellent step below, unlike other flame retardants.

In the flame retardant step of the fabric of the present invention, the concentration of the flame retardant is 20 to 250 g/L, so that the pickup rate is 80 to 100%, and the application method may be a padding method, a spray method, or the like. After the application, the flame retardant is firmly adhered to the fabric by drying at about 120 to 150°C for 10 to 20 minutes and then curing at 150 to 170°C for 1 to 5 minutes to increase the flame retardant durability due to the flame retarding step.

In the next antibacterial deodorization step, the antibacterial deodorant is inorganic metal, organometallic, anilide, quaternary ammonium salt, amphoteric and nonionic surfactant, guanidine, glycol, phenol, imidazole and thiazole, isothiazolone, One or more may be selected from the group consisting of nitrile-based, iodine-based, fluorine-based, sugar-based, and complexes thereof. Preferably, it may be an inorganic silver-based, more preferably a benzenesulfonamide silver salt.

The antibacterial deodorant step may be carried out alone by attaching 01 to 05 owf (On the Weight of Fiber) to the fabric as the selected antibacterial deodorant, and may be carried out in the same manner as the dyeing process. The amount of antibacterial deodorant used varies depending on the antibacterial deodorant used, but generally the higher the amount is, the greater the effect.However, if the amount exceeds a certain amount, the increase in the antibacterial deodorant effect due to the increase in the amount is weak, so even if it exceeds 05 owf. The effect does not increase significantly. When the amount is less than 0.1 o.w.f, the antibacterial deodorant is effective, but the effect is weak, so the amount of the antibacterial deodorant is preferably 0.1 to 0.5 o.w.f.

In the next water and oil repellent step, the water and oil repellent may be a fluorine-based, especially fluorocarbon. Such a water and oil repellent may be Nuva 3049 (manufactured by Hoechst) or Oleophobol SLA-new (manufactured by Huntsman) of polysiloxane having a fluorine side chain.

The water and oil repellent agent is applied at a concentration of 4 to 40 g/L and a pickup rate of 70 to 100% and cured at 160 to 190°C for 3 to 10 minutes to impart water and oil repellency to the fabric. The concentration of the water and oil repellent should be adjusted according to the content of the flame-retardant yarn of the fabric of the present invention, the type of general yarn, and the purpose or method of use of the fabric.

The form of the composite functional fabric manufactured as described above may be applied in various forms of fabric, and may be made of fabric having a sound-absorbing function, such as the fabric structure to be described below. The following fabric structure will be understood as a non-limiting example.

1 is a perspective cross-sectional view of a fabric according to a preferred embodiment of the present invention, and the fabric may be formed of a lower fabric layer 100, an intermediate pile yarn layer 200, and an upper fabric layer 300.

The lower fabric layer 100 may be given various design patterns such as plain weave or honeycomb shape, and may be prepared by mixing natural fibers such as cotton, wool, silk, hemp or other synthetic fibers alone, or by mixing two or more fibers. In addition, high-shrink yarn and porous yarn (quick-drying yarn) can be used as the yarn type.

In particular, when the lower fabric layer 100 is applied to a soundproof module that is combined with a building sound absorbing board (see Fig. 3, 400), a low melting point yarn (LM yarn) is used for the lower fabric layer to increase adhesion with the sound absorbing board. When bonding the sound-absorbing board layer and the structure, the VOC problem caused by the use of the adhesive can be improved by thermal bonding without using an adhesive.

Meanwhile, the intermediate pile layer 200 connecting the lower fabric layer 100 and the upper fabric layer 300 contains an upright pile yarn column and an air layer, and includes monofilament, multifilament, multifilament processed yarn, spun yarn, latent crimped yarn, porous yarn, It can be selectively used in hollow fiber, etc., and the length of the intermediate pile yarn layer (1 ~ 50mm) and the pile yarn density can be variously adjusted. The type, fineness, density, and length of the pile yarn have a great influence on the shock absorption function (cushionability) and sound absorption performance, and of course, the shock absorption and sound absorption characteristics can be adjusted to the desired level by changing them in various ways.

The upper fabric layer 300 can be given a variety of design patterns such as plain weave or honeycomb like the lower fabric layer, and natural fibers such as cotton, wool, silk, hemp, or other synthetic fibers alone, or two or more fibers are mixed. Can be manufactured. In addition, the upper fabric layer can add various design processing and functional processing suitable for wallpaper use through etching processing, printing processing, and coating processing. Specifically, it is possible to impart functionality through antibacterial deodorization processing, flame retardant processing, and antifouling processing.

In addition, it is possible to express the function of the yarn by using a yarn mixed type (composite fiber) yarn containing the functional material.

Meanwhile, the surface of the upper fabric layer may implement a three-dimensional shape 500 of various forms. As shown in Fig. 5, the surface shape of the upper fabric layer can express various three-dimensional effects such as round, orthogonal, honeycomb, comb pattern, embossed, etc. If the surface of the upper fabric layer is formed in an uneven structure, the diffraction distance is further increased. By lengthening it, the effect of improving the sound absorption performance can be realized. In the present invention, the surface modification of the upper fabric layer can be formed simultaneously with the formation of the fabric layer during weaving or weaving, without a separate additional process.

In this embodiment, it is preferable that the thickness of the entire structure is about 1 to 50 mm, but if it is less than the above range, the sound absorption performance is significantly reduced, and if it exceeds the above range, the sound absorption performance is improved, but the self weight of the intermediate pile layer and An excessive load supporting the upper and lower fabric layers may cause a problem in shape stability. Meanwhile, the density of the intermediate pile yarn layer can be expressed in CPI (Course Per Inch), and 20 to 80 CPI is appropriate and preferably about 30 to 50.

This is because, if the density of the pile yarn is less than the above range, the density of the pile yarn is small, so that the sound absorption performance is deteriorated and a problem occurs in shape stability. If the pile yarn is exceeded, the diffraction phenomenon between pile yarns is expected to be rather reduced.

The fabric according to the present invention can be manufactured by various methods. In the knitting method, single circular knit, double-sided circular knit, tricot warp knit, raschel letter, double raschel letter, multi-woven fabric, and laminated non-woven fabric can be used.

Meanwhile, the fabric shown in FIG. 2 represents a fabric according to another embodiment of the present invention. In this embodiment, an intermediate pile layer 200 may be formed on the lower fabric layer 100 without the upper fabric layer 300. In this embodiment, the lower fabric layer and the intermediate pile yarn layer may be woven in the same material and manner as in the above embodiment, and may be manufactured by other tufting methods. In this case, the thickness of the fabric is preferably about 1.2 to 4mm, which is the same reason as in the above embodiment.

As described above, the method according to an embodiment of the present invention has the effect of implementing each function in a fabric that expresses a complex function.

In addition, in the method according to the embodiment of the present invention, the complex functions are not reduced to each other in the treatment process, and in general, there is a characteristic of expressing the desired function even in a small amount compared to the case where it is prescribed alone.

1 and 2 are perspective cross-sectional views of a fabric according to an embodiment of the present invention.
3 to 5 is a state diagram in which the fabric and the sound-absorbing board are combined according to a preferred embodiment of the present invention.
6 is a manufacturing process diagram according to an embodiment of the composite functional fabric according to the present invention.

1. Comparison of flame retardant effect through flame retardant yarn and flame retardant effect by applying flame retardant

1) Test 1 sample-100% Polyester applied

-3% treatment of flame retardant in bath during dyeing (Br-based flame retardant)

2) Test 2 sample-Polyester (78.09%) + Flame-retardant yarn (21.91%)

3) Test 3 sample-Polyester (74.43%) + Flame-retardant yarn (25.57%)

* The flame-retardant yarn used in the samples of Tests 2 and 3 is a flame-retardant polyester in which a phosphorus-based flame retardant is added during polymer polymerization with polyester, reacted with EG, and condensed and polymerized to bind a flame-retardant compound to the polymer main chain.

* Test method: DIN 4102 Part 1 (B2)

* Sample size 90mm * 230mm (tilt direction)

The results according to the above test method are shown in Table 1.

[Table 1]

As shown in Table 1 above, the flame retardant of the fabric containing the flame retardant yarn is more effective than the flame retardant of the fabric coated with the flame retardant.

You can see excellence.

2. Flame retardant, antimicrobial, water and oil repellency tests of the composite functional fabric according to the present invention

Example 1

In polymer polymerization, a phosphorus-based flame retardant is added and flame-retardant polyester combined with a flame-retardant compound in the polymer main chain is used as flame-retardant yarn by condensation polymerization, and a general polyester is used as a general yarn and mixed with 22% by weight of flame retardant yarn and 78% by weight of ordinary yarn Was prepared, and an antibacterial deodorization step was performed at 0.3 owf in a 150° C. bath using benzenesulfonamide silver salt as an antibacterial deodorant.

In addition, in the water and oil repellent step, a fluorine-based Oleophobol SLA-new was used as the water and oil repellent, and a composite functional fabric was prepared with the concentration of the water repellent at 10 g/L.

Examples 2 to 4

The same as in Example 1, except that the mixing ratio of flame retardant and general yarn was 30% by weight: 70% by weight, 50% by weight: 50% by weight, and 70% by weight: 30% by weight.

Example 5

The same as in Example 1, but before the antibacterial deodorization step, a flame retardant step was performed using FLOVAN ^® CGN as a flame retardant. The flame retardant concentration was 50 g/L, and the pickup rate was 80% and applied.

Example 6

The same as in Example 1, but in the water and oil repellent step, Nuva 3049 (manufactured by Hoechst) was used and the concentration was 15 g/L.

1) Flame retardant test

The flame retardant performance test was evaluated by carbonization length according to DIN 4102 Part 1 (B2) (standards are shown in Table 3).

[Table 2]

2) Antibacterial deodorant test

Antimicrobial properties were tested by the KS K 0693 method, and the results are shown in Table 3.

As shown in Table 3, a very good antibacterial effect was observed even at a very low concentration of 0.3% o.w.f.

[Table 3]

3) Water and oil repellency test

Water repellency was measured by AATCC 22, spray test method, and oil repellency was measured by AATCC 118, oil repellency test method. Test Results Table 4 shows the water repellency and oil repellency test results of the fabrics of each example.

[Table 4]

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

100: lower fabric layer 200: intermediate pile yarn layer
300: upper fabric layer 400: sound absorption board
500: irregularities

Claims (2)

In the processing method of the composite functional fabric,
Fabric manufacturing step of preparing a fabric by mixing 20 to 70% by weight of flame-retardant yarn and 30 to 80% by weight of ordinary yarn;
Inorganic metal, organometallic, anilide, quaternary ammonium salt, amphoteric and nonionic surfactant, guanidine, glycol, phenol, imidazole and thiazole, isothiazolone, nitrile, iodine, fluorine , Antibacterial deodorant step of applying at least one selected from the group consisting of sugar-based and complexes thereof on the fabric with 01 to 05 owf, 80 to 100% pickup rate and curing at 160 to 190°C for 3 to 10 minutes; And
A fluorine-based water and oil repellent agent comprising a water and oil repellent step of applying to fabric at a concentration of 4 to 40 g/L and a pickup rate of 70 to 100% and curing at 160 to 190°C for 3 to 10 minutes. Fabric processing method. The method of claim 1,
The fabric is formed of an upper fabric layer and a lower fabric layer formed of a low melting point yarn, and an intermediate pile yarn layer formed as a pile is formed on the lower fabric layer,
The thickness of the fabric is 1 to 50mm, the density of the pile of the intermediate pile yarn layer is 20 to 80 CPI, so that the intermediate pile yarn layer and the lower fabric layer improve sound absorption.

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