KR20170049004A

KR20170049004A - A fabric coating method for improving soil repellent and water emission and flame resistacne function, and a fabric product coated for improving soil repellent and water emission and flame resistacne function

Info

Publication number: KR20170049004A
Application number: KR1020150149807A
Authority: KR
Inventors: 신홍주
Original assignee: 주식회사 한주섬유
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2017-05-10

Abstract

The present invention relates to a method of coating a fabric for improving antifouling, water repellency, and flame retardant performance, and a coated fabric product for improving antifouling and water-repellent performance. The fabric is made of PVC or PU- The present invention relates to a method of coating a fabric capable of improving chemical resistance, antifouling performance, water repellency and flame retardant performance, and a fabric product having a coating layer or a coating area therefrom.
In order to accomplish the above object, the present invention provides a method for coating a textile fabric, comprising the steps of: applying at least one of a coating agent containing a fluorinated water-repellent and oil repellent component, a urethane antifouling agent, and a coating agent containing a brominated flame- The coating process includes a dipping coating process that can be selectively performed after the knife coating process and the knife coating process and in which the coating process is performed a plurality of times, Characterized in that the proportions of components and components of the coating agent are different from the proportions of the components and components of the coating agent used in subsequent coating processes carried out after the particular coating process, thereby providing a coated fabric fabric.

Description

FIELD OF THE INVENTION The present invention relates to a method of coating a fabric for improving antifouling performance, water repellency, water repellency, and flame retardancy, and a coated fabric for improving antifouling, water repellency and flame retardant performance coated for improving soil repellent and water emission and flame resistacne function}

The present invention relates to a method of coating a fabric for improving antifouling and water repellency and a flame retardant performance, and a fabric product coated with a coating for improving antifouling, water repellency and flame retardant performance, compared with artificial leather products comprising PVC or PU- A fabric method capable of improving chemical resistance, antifouling performance and water repellent performance, and a fabric product having a coating layer or coating area therefrom.

Artificial leather can be obtained by adding a resin such as PU or PVC to a fiber bubble having a relatively simple structure such as a woven fabric, a knitted fabric or a nonwoven fabric to obtain a product similar to a natural leather. In a natural leather, a collagen fiber bundle Synthetic leather, artificial leather, PVC leather, synthetic leather, synthetic leather, etc. In general, artificial leather is made of PVC leather, synthetic leather and artificial leather. Respectively.

Although PU is a relatively environmentally friendly material compared to PVC, PU can also be used for clothing because of its weak water resistance, but it is difficult to use for durable furniture materials such as sweat, furniture and sofa directly contacted by people.

PVC artificial leather is inexpensive and has a variety of color expressions. However, toxic components (plasticizers, stabilizers) are generated, and dioxins are generated when PVC is burned, which is harmful to the environment.

PU artificial leather is light, has good surface connection and good mechanical properties, but it is expensive compared to PVC products, there are design limitations in color and pattern expression, and the production process is very complicated.

PVC and PU artificial leather shrinks from the surface to the back after washing, and when used with strong alkalis or other disinfectant, it is inferior in discoloration and function, and is susceptible to hydrolysis and sweat due to perspiration. Therefore, Or wear.

Such PU and PVC artificial leather hardly reveals the original feeling of fabric, so it is not easy to apply to high quality products because it feels like vinyl. It is very sticky due to sweat when the skin touches directly. It is difficult to apply it.

In addition, there is a limit to the use of hospitals and airports where sterilization and disinfection are frequently required due to weak chemicals due to locks or disinfectants.

Korean Patent No. 10-1197621 discloses an antifouling fabric and a manufacturing method of the antifouling fabric, but these techniques alone were insufficient to meet market needs.

Therefore, there is a need for a coating method for fabric fabrics which has the advantages of PU products, has chemical resistance (lactose and disinfectant), maximizes water repellency and antifouling property, but retains the original feeling of the fabric.

The present invention has been made in order to satisfy such necessity, and it is required to maximize the antifouling property, water repellency, flame retardancy, and chemical resistance (locks and disinfectant) And to provide an improved fabric fabric.

Another object of the present invention is to provide a unique texture of a textile fabric to the user while still having the above characteristics.

In order to accomplish the above object, the present invention provides a method of coating a textile fabric,

A coating agent containing a fluorine-based water-repellent and oil-repellent component, a coating agent containing a urethane-based antifouling agent, and a flame retardant containing a bromine-based resin and an acrylic binder,

The coating process includes a dipping coating process that can be selectively performed after the knife coating process and the knife coating process,

The coating process for improving the antifouling and water repellent performance includes the first to fourth coating processes sequentially,

The first coating process includes a first knife coating process and a first dipping coating process,

The secondary coating process includes a secondary knife coating process and a secondary dipping coating process,

The third coating process includes a third knife coating process,

The fourth coating process includes a fourth knife coating process,

The primary coating used in the primary coating process is; Wherein the composition contains 49 to 55% by weight of urethane, 14 to 17% by weight of oily acrylic, 8 to 12% by weight of toluene, 8 to 12% by weight of acrylic acrylate, and 9 to 12%

Wherein the second coating agent used in the second coating step comprises: Wherein the water-repellent agent comprises 48 to 52% by weight of urethane, 13 to 16% by weight of oily acrylic, 8 to 12% by weight of toluene, 16 to 22%

The third coating agent used in the third coating step includes: 88 to 91% by weight of an aqueous acrylate, 2 to 6% by weight of a fluorine-based water and oil repellent agent, and 3 to 9% by weight of a thickener,

The fourth coating agent used in the fourth coating step includes: 78 to 82% by weight of a urethane antifouling agent, 13 to 17% by weight of an oil-based acrylate, 0.1 to 0.3% by weight of an antifoaming agent and 3 to 8% by weight of a crosslinking agent,

Flame retardants used in coating and dipping processes to improve flame retardant performance include: The present invention provides a method of coating a textile fabric, which comprises 46 to 54% by weight of bromine, 16 to 22% by weight of an acrylic binder, 30 to 34% by weight of water, and 0.1 to 0.2% by weight of an antifoaming agent.

The present invention also relates to a textile fabric comprising: A coating layer formed on the surface of the substrate portion; Wherein the coating layer and the hygroscopic layer are formed by a coating agent comprising a coating agent containing a fluorine-based water- and oil-repellent agent component, a coating agent containing a urethane-based antifouling agent, and a flame retardant, wherein the fluorine- Wherein the coating agent containing the water-repellent and oil-repellent component, the coating agent containing the urethane-based antifouling agent, and the coating agent containing the flame retardant are formed in a coating process different from each other, wherein the coating agent containing the fluorine- Based antifouling agent composition comprising 13 to 16% by weight of oily acrylic, 8 to 12% by weight of toluene, 16 to 22% by weight of a fluorine-based water-repellent oil-repellent agent, 8 to 12% by weight of an aqueous acrylic resin, and 1 to 2% Characterized in that it comprises 88 to 91% by weight of water-based acrylic, 2 to 6% by weight of a fluorine-based water-repellent and oil-repellent agent, and 3 to 9% by weight of a thickener, Is bromine 46-54% by weight, of acrylic binder, 16-22% by weight, and water 30-34% by weight of anti-foaming agent from 0.1 to coated textile fabrics in order to improve the antifouling performance of the water-repellent-retardant, characterized in that 0.2% by weight.

According to the present invention, it is possible to provide a fabric having an improved antifouling property, water repellency, and flame retardancy, and improved chemical resistance (lactose and disinfectant) when contacted with a human being is minimized.

In addition, the unique texture of the fabric can be conveyed to the user.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing characteristics of an antifouling water repellent agent according to the prior art and an antifouling water repellent agent applied to the present invention. Fig.
FIG. 2 is a schematic view showing changes in state before and after washing in a fabric cloth coated with an antifouling water repellent agent applied to the present invention. FIG.
3 is a process flow chart according to the present invention.
4 is a schematic view of an apparatus for carrying out the process according to the present invention.
5 is a side cross-sectional view showing a state of change of the cloth fabric during the process according to the present invention.
6 is an SEM photograph of an initial state of the fabric coated by the present invention.
7 is a final state SEM photograph of the coated fabric according to the present invention.
Figure 8 is a photo of the fabric surface of various colors and patterns coated by the present invention.
Fig. 9 is a photograph of a device arrangement for water repellency performance test.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

The fabric used in the present invention includes a fabric, such as a fabric, whose surface is not smoothly formed, but which has a specific texture when the surface of the fabric is in contact with the surface of the fabric.

The fabric is used for clothes, carpets, car seats and the like, and can be provided with general fabrics, knitted fabrics or nonwoven fabrics. Specifically, flat fabrics woven with jacquard or dobby, flat cloth knitted with a tricot knitting machine It is knitted using Double Raschel or Tricot knitting machine which is knitted by using Flat Tricot and Double Raschel knitting machine and slit the center to form a pile, The buffing process is added, and the surface is knitted using a tricot suede (Tricot Suede) having a texture of synthetic leather such as taxa and a tricot knitting machine. (Tricot Cut) which cuts the surface smoothly through a circular knitting machine, Circular Knit knitted using a cylindrical knitting machine, Double Raschel knitting machine (MESH) or DNB mesh (Space Fabric) using a knitting machine, or a sinker pile with a file through a part called a sinker with a knitting machine.

The material of the fabric may be a fabric made of natural fibers, man-made fibers, synthetic fibers, or a fabric made of fibers blended with the fibers.

In this conventional technique, a coating layer capable of performing waterproof, water-repellent and antifouling functions is formed by using a coating method such as laminating on the fabric. When such a coating layer is formed, due to the thickness of the coating layer itself, And it was difficult to process or decorate the surface of the coating layer.

In the present invention, a fine coating layer capable of easily removing water droplets, pollutants, and other chemicals provided from the outside can be formed on the surface of the fabric while maintaining the texture specific to the fabric as much as possible, , Waterproof, water repellent, antifouling, flame retardant performance and chemical resistance to chemicals such as bleaching agents.

For this purpose, in the present invention, the additives for preparing the coating agent are selected and the mixing conditions between them are designed. A suitable additive such as a water repellent agent, an antifouling agent, and a flame retardant agent capable of maximizing the water repellency, antifouling property and flame retardancy can be selected, and in particular, a compounding condition capable of achieving a matte effect without using a quencher is designed.

It also mentions the optimal coating process for effectively coating the selected coatings on the fabric.

For this purpose, the optimum coating method is selected, and the conditions such as types, angles, and pressures of the knife for coating according to the type and thickness of the fabric are designed, and the pressure and temperature conditions of the rollers used for coating are designed do.

In order to develop optimal water repellency and stain removal processing conditions, a condition and a coating amount for the dipping coating are designed, and the appropriate temperature and coating thickness at that time are set.

If the application of the coating material is too thick, the touch feeling of the fabric becomes thick or stiff. This is because the uniform coating application technique is required to be advanced and the soft coating material Can be provided.

In addition, it is necessary to develop a proper post-treatment, ie, a tentering condition, technique for fabric fabrics after the coating process. For this, it is necessary to design conditions such as processing temperature, speed and width.

Thereafter, it is necessary to secure reliability by evaluating the physical properties of the fabric fabrics subjected to such processes.

For this purpose, it is important to evaluate water repellency, antifouling property, wash fastness, rub fastness and abrasion according to standard test methods, and to check chemical resistance (tolerance to locks and disinfectants).

In the present invention, a fluorine-based coating agent is used for effective water repellency and oil repellency. A feature of the fluorine-based coating agent is that the surface of the fiber is coated with a very small amount of the fluorine polymer, so that the inherent feel and permeability of the fiber base material is not impaired.

Further, in the present invention, a bromine-based flame retardant is used as a flame retardant and an arc binder is used as a resin used as a flame retardant.

The bromine-based flame retardant is a type of halogen-based flame retardant which is widely used in the industry and is used because the flame retardant effect is superior to the chlorine-based or inorganic flame retardant.

As shown in FIG. 1, when the fluorine-containing monomer and the silicon macromonomer are copolymerized in the prior art, such a copolymer polymer has a problem that the silicon component is preferentially separated from the surface after film formation.

Therefore, there is a limit in showing the oil-repelling performance.

However, the coating agent used in the present invention can combine fluorine and silicone at the molecular level to combine the characteristics of 'excellent water and oil repellency' of fluorine and 'does not inhibit the touch of the material' of silicon. Due to the technology, excellent water and oil repellency and feeling of fiber of silicon can be compatible with both characteristics.

In the case of coatings in which fluorine and silicon are compounded at the molecular level, when the heat is applied, the silicone component seeps under the surface or the surface of the fabric so as to maintain the texture of the fabric and the fluorine component is located on the surface of the fabric, Indicates the oil-repellent performance.

The fluorine-based component used in the present invention is a fluorine polymer having both a water-repellent component derived from a perfluoroalkyl group and a hydrophilic component derived from a polyoxyethylene group in one molecule.

As shown in FIG. 2, the perfluoroalkyl group, which is a minority and proprietary group in the air, is externally discharged, and a polyoxyethylene group, which is a hydrophilic group, is oriented toward the inside, The polyoxyethylene group, in which the alkyl group (perfluoroalkyl group) is oriented inward and the hydrophilic group, is externally oriented (flip-flop phenomenon) occurs, and water is wetted at the interface of the contaminants attached to the fibers and fibers This makes it easy for contaminants to float and fall.

Flip-flop phenomenon makes it easy to remove oil stains attached to the fibers, so that the attached contaminants tend to fall off.

The coating for anti-fouling and water repellent to the fabric used in the present invention occurs over four times, and the first and second coating operations include a coating operation using a knife and a dipping coating operation. , And the fourth coating operation consists of a coating operation using a knife.

Then, when the coating work for the antifouling and water repellent is completed according to the 1st to 4th orders, knife coating and dipping work are performed to improve the flame retarding performance.

As shown in FIG. 3, in the coating step for improving antifouling and water repellency, the first coating step S100 includes a first knife coating S110, a first drying step S120, Coating and dewatering (S130), and a first tentering process (S140). The second coating step (S200) is performed in the order of the second knife coating (S210), the second drying (S220) Dipping coating (S230), and second tenting (S240).

In the third coating step S300, in the third knife coating S310, the third drying step S320, the third tentering step S330, and the fourth coating step S400, A tea knife coating process S410, a fourth drying process S420, and a fourth tendering process S430.

The tentering process is a process in which the width of the fabric is reduced in advance so that the product using the fabric itself or the fabric after it is reduced is prevented from being stained and water repellent performance is not damaged.

Here, the knife coating process and the dipping process of the first to fourth coating processes are performed by repeatedly using the knife coating device 10 and the dipping coating device 31 installed as shown in FIG.

That is, in the first coating step (S100), after the knife coating process using the first coating material, the drying process, the dipping process, the dewatering process, and the tentering process are completed and the wound fabric is wound on the winding roller, (S200) is performed by replacing only the coating agent with the second coating agent.

In the third and fourth cases, the knife coating apparatus, the drying process, and the tentering process are performed using the third coating agent and the fourth coating agent.

Meanwhile, when the first to fourth coating processes for improving antifouling and water repellent performance are completed, a knife coating process and a dipping process (S500) for improving the flame retardant performance are performed.

The knife coating process and the dipping process S500 for improving the flame retardancy include knife coating S510, drying S520, dipping and dewatering S530, and tendering S540.

As shown in Fig. 4 and Fig. In the case of the knife coating process, a knife 11 is provided at the rear of the guide roller 9, and a supporting table 12 is provided under the knife 11 to form a coating layer 5 (b), (C) are formed.

In this case, the worker supplies the coating material (a) to the surface of the material to be coated in front of the knife 11.

When the knife coating is completed, the coated fabric is dried by the drying device 20 (Figs. 5 (c) and 5 (c)), and then the coating material in the container 31a provided in the dipping device 31 After being injected, it is dehydrated.

Whereby the coating agent is applied or absorbed on the surface of the fabric.

The coating agent applied to the surface of the fabric S forms a coating layer together with the coating agent formed by the knife coating, and the hygroscopic coating agent forms a hygroscopic layer (Fig. 5 (d), A) under or inside the fabric surface.

This process is repeated to coat the fabric with water repellent, antifouling coating and coating and dipping to improve flame retardant performance.

On the other hand, a mangle machine 32 composed of two rollers is installed so that the fabric can be dewatered after the dipping coating. Further, a tentering device 40 is provided at the rear side.

The components of the first coating agent used for the first knife coating and the first dipping coating for improving antifouling and water repellent performance are as follows.

ingredient Compounding ratio (% by weight) urethane 49 to 55 Acrylic Acrylic 14-17 toluene 8-12 Acrylic Acrylic 8-12 UV curing agent 9-12

The components of the second coating agent used for the second knife coating and the second dip coating for improving antifouling and water repellent performance are as follows.

ingredient Compounding ratio (% by weight) urethane 48-52 Acrylic Acrylic 13-16 toluene 8-12 Fluorinated water-repellent emulsion 16 to 22 Acrylic Acrylic 8-12 Penetration agent 1-2

The components used in the third knife coating for improving antifouling performance and water repellency are as follows.

ingredient Compounding ratio (% by weight) Acrylic Acrylic 88 ~ 91 Fluorinated water-repellent emulsion 2 to 6 Thickener (viscosity improver) 3 ~ 9

The components used in the fourth-order knife coating for improving antifouling performance and water repellency are as follows.

ingredient Compounding ratio (% by weight) Urethane antifouling agent 78 to 82 Acrylic Acrylic 13-17 Defoamer 0.1 to 0.3 Cross-linking agent (isocyanate-based) 3 to 8

During the above process, the fluorinated water repellent agent is coated in the second and third coating processes, and the urethane antifouling agent is coated in the fourth coating process.

That is, the coated portion in the first coating process acts as a kind of binder that allows the fluorine-based water-repellent and oil repellent agent and the urethane-based antifouling agent to remain on the surface without being absorbed by the fabric.

Meanwhile, in the first to fourth coating processes, the interval between the end of the knife and the surface of the fabric is preferably 1 to 3 mm, and the coating amount is preferably 30 to 50 g per 1 m ² .

In the first and second coating processes, the gap between the knife end and the surface of the fabric is preferably 1 to 2 mm, and in the third to fourth coating processes, the gap between the knife end and the surface of the fabric is preferably adjusted to 2 to 3 mm.

The pressure applied to the fabric by the surface of the roller during the dipping process is preferably 3.0 to 3.5 kgf / cm ² , and the surface temperature of the roller is preferably 100 to 120 ° C.

On the other hand, in the case of the tentering process, the coating process of each order is completed before the coating process of the next order is completed. In this case, the tentering process conditions by the tentering device are as follows.

fair Temperature (℃) Speed (yd / min)) Width after shrinkage (inch) 1st tender ring 160-170 3 to 4 56 " Second tender ring 160-170 3 to 4 56 " Third Tender Ring 160-170 3 to 4 56 " The fourth tender ring 160-170 3 to 4 56 "

The SEM of the coated fabric after this process is shown in FIGS. 6 and 7. FIG. FIG. 6 is an initial developed product, and FIG. 7 is a final developed product. It can be seen from the comparison between the initially developed product and the final developed product that the surface is smoother, the density between the fabric strands is densely formed, and the fine coating layer is uniformly formed on the surface have.

In order to improve the flame retardancy of the fabric, flame-retardant processing can be performed. In this case, the knife coating apparatus and the dip coating apparatus can be used.

In this case, the components of the flame retardant are as follows.

ingredient Compounding ratio (% by weight) bromine 46 ~ 54 Acrylic binder 16 to 22 water 30 to 34 Defoamer 0.1 to 0.2

Here, in the flame-retarding process, the gap between the edge of the knife and the surface of the fabric is 4 mm, the coating amount is 160 g / m ² , and the temperature of the roller is preferably 160 ° C.

The tending conditions are the same as those shown in Table 5.

In order to improve the flame retardant performance, bromine and acrylic binder are simultaneously mixed and coated and dipped. Bromine is for flame retardation and acrylic binder is added for improving abrasion resistance.

The physical properties of the finished product were evaluated through the above process, and the results of the physical property evaluation and the results are described below.

FIG. 8 shows a fabric fabric having various colors and textures through the above processes, and the following property evaluation process was performed using the fabric fabric. In the evaluation of the following properties, the target value of the result of the applicant's water repellency, decontamination performance, wash fastness, friction fastness, dye fastness to non-chlorine bleaching, fastness to bleaching, and water / And the abrasion strength of the fabric can be broken only when the wear number exceeds 20,000 times.

For reference, water grade 5 is the best grade, and grade 1 is the most inferior grade.

On the other hand, it is also aimed that no organic tin compound content is found.

<1. Water repellency measurement>

The water repellency of the fabrics was measured using the spray method KS K 0590 to determine the water content of the developed materials obtained from the above process conditions.

That is, as shown in Figs. 9 (a) and 9 (c), 250 ml of distilled water was poured into a funnel using a vertical funnel having a diameter of 150 mm and a ring stand, Lt; / RTI > seconds.

To determine the durability after washing, the laundry was washed 20 times using KS K ISO 6330 for home textile washing and drying process.

To evaluate the durability after abrasion, we measured the abrasion strength of the fabric by Martin Dale method after 20,000 cycles using KS K ISO 12947-2.

As a result of measurement, regardless of the type and color of fabric, there was no change in wastewater even after washing and worn.

<2. Measuring cloth decontamination performance>

In order to investigate the decontamination performance of the materials obtained through the above-mentioned process conditions, the decontamination performance test method KS K 0610 was used.

The test specimen was placed flat on the absorber so that the corn oil was dropped and covered with 7.6 cm × 7.6 cm sized glazin paper. Immediately, 3.5 g of cylinder weight was put on the glaucin paper and left for 60 seconds to remove the load. After the paper was discarded and contaminated, the specimens were washed between (20 ± 5) minutes.

Washing was carried out using KS K ISO 6330 for the home washing and drying process for textile tests.

To determine the durability after washing, the decontamination performance was measured after washing 20 times using KS K ISO 6330 for home washing and drying process for fiber test.

Also, to evaluate the durability after abrasion, the cloth decontamination performance was measured after 20,000 cycles using KS K ISO 12947-2.

After 20 times of washing, the antifouling property was slightly decreased, but the performance required by the consumer was satisfied. After the abrasion, the cloth decontamination performance was almost unchanged and reached the target level 4.

<3. Wash fastness measurement>

To determine the washfastness performance of developed materials obtained through process conditions, the dye fastness test was measured using KS K ISO 105-C06.

One 40 mm × 100 mm test specimen was stitched to the same size of a plasticized tissue, and one of the short sides was stitched on the surface of the sample. The standard detergent of 4 g was dissolved in 1 L of water to prepare a 0.4% ECE standard detergent , 0.1% and sodium borate (40 ± 2) ℃, washing time 30 minutes, 10 beads were put into the test.

The robustness was verified by the above test procedure and numerically reached the target level 4.

<4. Friction fastness>

To evaluate the washing fastness properties of the developed materials obtained through the process conditions, the fastness to rubbing of the dyed materials was tested using KS K 0650.

The size of the test specimen was 200 mm × 100 mm, and the dryness and the wetting test were carried out using a friction woven cotton cloth. The robustness was verified by the above test procedure, and the numerical value reached the target level 4 Respectively.

<5. Color fastness to non-chlorine bleaching>

The dye fastness to non - chlorine bleaching of non - chlorine based bleaching was evaluated by the automatic washing machine test method: KS K 0446.

Non-chlorine bleaching agents were sold in the market, and powdered laundry soap (66 ± 1) g was put into the amount recommended by the manufacturer and put in a non-chlorine bleaching agent. Then, the color change was confirmed after drying.

To evaluate the durability after washing, the performance of non-chlorine bleaching fastness was measured after washing 20 times using KS K ISO 6330 for home washing and drying process for fiber test.

To evaluate the durability after abrasion, the decontamination performance of non-chlorine bleaching fastness was measured after 20,000 cycles using KS K ISO 12947-2.

As a result, it was confirmed that the decontamination performance of cloth was almost unchanged even after washing and wearing regardless of the organization and color, and reached the target value (grade 4).

<6. Fastness to bleaching: Hypo chlorites>

The fastness to bleaching of the developed materials obtained through process conditions was measured. To determine the performance of hypochlorite used as a bleaching agent, fastness to bleaching was measured using the hypochlorite test method: KS K ISO 105 N01.

(25 ± 30) ° C so that the wetted specimen is wetted by the dry weight of the test specimen, and the test specimen is well spread to obtain a liquid ratio of (20 ± 2) ° C Of sodium hypochlorite solution.

The test specimen was kept in the test solution at (20 ± 2) ° C for 60 minutes, and the test specimen was rinsed in cold tap water. The specimen was then placed in a hydrogen peroxide solution, stirred at room temperature for 10 minutes, .

To evaluate durability after washing, home washing and drying process for fiber test KS K ISO 6330 was used for washing 20 times and the fastness to bleaching was measured

Also, to evaluate the durability after abrasion, the fastness to bleaching was measured 20,000 times using KS K ISO 12947-2.

As a result, the fastness to bleaching performance showed almost no change even after washing and abrading regardless of texture and color, and reached the target value (grade 4).

<7. Water / alcohol mixture solution resistance test>

To investigate the water / alcohol mixture resistance performance of the developed materials obtained through the process conditions, the water / alcohol mixture resistance test was performed using KS K ISO 23232.

Begin with the lowest numbered test solution (aqueous solution water repellency grade no. 1) and place a small drop (about 5 mm diameter or 0.05 ml volume) on at least three locations that can represent the physical and color properties of the fabric, Was carefully removed and observed at an angle of about 45 ° (10 ± 2) seconds.

This procedure was continued until one of the test solutions clearly showed percolation from the bottom of the drop or sample within (10 ± 2) s.

To evaluate the durability after washing, the performance of water / alcohol mixture resistance was measured after washing 20 times using KS K ISO 6330 for domestic washing and drying process for textile test.

Also, to evaluate the durability after abrasion, the resistance of the water / alcohol mixture was measured after 20,000 cycles using KS K ISO 12947-2.

As a result, it was found that the water / alcohol mixture resistance performance showed almost no change even after washing and abrading regardless of the texture and color, and reached the target value (grade 4).

<8. Fabric Wear Strength Test>

To evaluate the abrasion strength performance of the fabrics of the developed material obtained through the process conditions, the abrasion strength test of the fabric by the Martin-Dale method was measured using KS K ISO 12947-2.

A suitable number of times of friction was selected and the abrasion tester was operated to continue the abrasion test without interruption until the number of times of friction reached.

Carefully remove the test specimen holder from the tester to inspect the entire area for failure without damage or distortion and place the holder back on the tester if no fracture has occurred and continue testing until the failure is observed And evaluation process.

As a result, destruction occurred only at the number of abrasions of more than 20,000 irrespective of organization and color. Thus, it can be seen that the target value has been reached.

<9. Organotin compound content>

To determine the content of organotin compounds in fabric of developed material obtained through process conditions, the content of organic tin compounds was measured using KS K 0737.

Organic tin compounds of textile products were extracted with acidified methanol, and the organic tin compounds were alkylated with sodium tetraethylborate. The organic solvent phase was extracted with n - hexane, and the extract was purified using silica gel. The organotin compounds substituted with other forms were analyzed qualitatively and quantitatively using gas chromatograph mass spectrometer.

As a result, it can be seen that a meaningful component and amount are not detected and the target value is reached.

As a result of the above various analysis tests, it can be seen that the fabric material after the process of the present invention has excellent antifouling, water repellency and chemical resistance. Therefore, it is possible to realize the feel and appearance of the fabric inherent in the original vinyl feeling by the soft touch.

Specifically, it is possible to realize a matte effect through the combination of an aqueous and oily coating solution without using a quencher, and to realize an antifouling performance capable of easily removing stains on the surface of a fabric.

In addition, it can be confirmed that decolorization or deterioration of function is prevented in a disinfectant such as strong alkaline or alcohol, and the surface color or function thereof can be maintained for a long time.

10: Knife coating apparatus 20: Drying apparatus
31: dipping coating apparatus 32: mangling machine
40: Tentering device S: Fabric
C: Coating layer A: Moisture absorbing layer

Claims

A method of coating a fabric fabric,
A coating agent containing a fluorine-based water-repellent and oil-repellent component, a coating agent containing a urethane-based antifouling agent, and a flame retardant containing a bromine-based resin and an acrylic binder,
The coating process includes a dipping coating process that can be selectively performed after the knife coating process and the knife coating process,
The coating process for improving the antifouling and water repellent performance includes the first to fourth coating processes sequentially,
The first coating process includes a first knife coating process and a first dipping coating process,
The secondary coating process includes a secondary knife coating process and a secondary dipping coating process,
The third coating process includes a third knife coating process,
The fourth coating process includes a fourth knife coating process,
The primary coating used in the primary coating process is; Wherein the composition contains 49 to 55% by weight of urethane, 14 to 17% by weight of oily acrylic, 8 to 12% by weight of toluene, 8 to 12% by weight of acrylic acrylate, and 9 to 12%
Wherein the second coating agent used in the second coating step comprises: Wherein the water-repellent agent comprises 48 to 52% by weight of urethane, 13 to 16% by weight of oily acrylic, 8 to 12% by weight of toluene, 16 to 22%
The third coating agent used in the third coating step includes: 88 to 91% by weight of an aqueous acrylate, 2 to 6% by weight of a fluorine-based water and oil repellent agent, and 3 to 9% by weight of a thickener,
The fourth coating agent used in the fourth coating step includes: 78 to 82% by weight of a urethane antifouling agent, 13 to 17% by weight of an oil-based acrylate, 0.1 to 0.3% by weight of an antifoaming agent and 3 to 8% by weight of a crosslinking agent,
Flame retardants used in coating and dipping processes to improve flame retardant performance include: Wherein the coating agent comprises 46 to 54% by weight of bromine, 16 to 22% by weight of an acrylic binder, 30 to 34% by weight of water, and 0.1 to 0.2% by weight of an antifoaming agent.

A base material portion of the fabric material;
A coating layer formed on the surface of the substrate portion;
And a hygroscopic layer formed by absorbing moisture inside the surface of the substrate portion,
The coating layer and the hygroscopic layer are formed by a coating agent containing a fluorine-based water- and oil-repellent agent, a coating agent containing a urethane-based antifouling agent, and a coating agent containing a flame retardant,
The coating agent containing the fluorine-based water-repellent and oil-repellent agent, the coating agent containing the urethane-based antifouling agent, and the coating agent containing the flame retardant are formed in a coating process,
The coating material containing the fluorine-based water-repellent and oil-repellent agent component may contain 48 to 52 wt% of urethane, 13 to 16 wt% of oily acrylic, 8 to 12 wt% of toluene, 16 to 22 wt% of fluorine- , 1 to 2 wt% of a penetrating agent,
The coating agent containing the urethane-based antifouling agent is characterized by containing 88 to 91% by weight of an aqueous acrylate, 2 to 6% by weight of a fluorinated water-repellent and oil-repellent agent, and 3 to 9%
Wherein the coating agent containing the flame retardant comprises 46 to 54% by weight of bromine, 16 to 22% by weight of acrylic binder, 30 to 34% by weight of water, and 0.1 to 0.2% by weight of a defoaming agent. Fabric Fabric.