JPH0742661B2 - Coating agent and polyester fiber cloth processed by the agent - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating processing agent capable of preventing migration sublimation of a disperse dye and a polyester fiber cloth processed by the coating processing agent.

[0002]

2. Description of the Related Art Conventionally, fabrics made of synthetic fibers or natural fibers have been subjected to various coating processes in order to impart waterproof, windproof, water-repellent, flame-retardant and other functions. The coating process on nylon and polyester fiber fabrics which are fiber fabrics is in great demand. However, nylon-based fiber cloth uses a dye with a small sublimation property for dyeing, and the dyeing mechanism is mainly the chemical bond between the dye and the fiber substrate. There is almost no phenomenon and it is easy to obtain a practical coated fabric, but in polyester fiber fabric dyed with a disperse dye,
When a coating process is performed, when the coating surfaces overlap with each other, or when the coating surface overlaps with another fabric or film, migration and sublimation of the disperse dye occurs from the coating surface, often causing contamination. Therefore, in order to improve such problems, a dye having a low sublimation property is selectively used, a barrier layer made of melamine resin or the like is provided on the polyester fiber cloth, plasma treatment is performed on the polyester fiber cloth, and a coating agent is used. Various improvements have been attempted, such as adding a dye adsorbent to the coating solution, coating the coating surface with a resin having hydrophilicity stronger than that of the coating resin film (see Japanese Patent Publication No. 52508/1989). However, in any case, it is not possible to solve such a problem completely, but rather,
Processability is poor, and there is a limit to the hue that can be dyed,
There have been problems such that the texture of the coated fabric is poor and it is difficult to obtain a processed surface having excellent water resistance.

[0003]

DISCLOSURE OF THE INVENTION The present invention is a coating agent which can be stably applied to a polyester fiber cloth dyed with a disperse dye, and which has an extremely small migration sublimation of the disperse dye, and a polyester excellent in fastness of migration sublimation. An object is to provide a fiber-based fabric coating.

[0004]

Means for Solving the Problems The present inventors have effectively solved the above problems by including a methyl hydrogen silicone oil and an organic tin compound in a coating processing agent containing an acrylic resin as a main component. I found a solution.

A coating processing agent in which an acrylic resin is mixed with methyl hydrogen silicone oil and an organic tin compound is applied to a polyester fiber cloth dyed with a disperse dye and dried to form an acrylic resin in the acrylic resin or at its interface. It seems that a barrier layer of methyl hydrogen silicone oil is formed and the desired effect is obtained.

In the present invention, the polyester fiber cloth may be any of woven cloth, knitted cloth and non-woven cloth, and even if it is made of only polyester fiber, polyester fiber and other fibers such as cotton, rayon, Nylon,
It may be a blended product with acrylic fibers or the like, or a mixed woven or knitted product.

The acrylic resin used in the present invention means a resin containing acrylic acid ester or methacrylic acid ester as a main component and can be copolymerized with these monomers as a third component. Other monomers may be copolymerized. In particular, it is desirable to use an acrylic resin obtained by copolymerizing a monomer having a functional group such as a hydroxyl group, a carboxyl group and an epoxy group. The method for producing the acrylic resin is not particularly limited.

The methyl hydrogen silicone oil used in the present invention is represented by the following general formula (where m is 0 or a positive integer, and n is an integer of 40 or more): It is usually called H oil.

[0009]

[Chemical 1]

An organotin compound is used as a cross-linking catalyst for methyl hydrogen silicone oil. Without this catalyst, the methyl hydrogen silicone oil does not cross-link and the barrier layer cannot be fixed, resulting in a durable migration. No ability to prevent sublimation.

Examples of such organotin compounds include dibutyltin dilaurate, dibutyltin maleate, dibutyltin maleate butyl ester, dibutyltin β mercaptopropionate, dibutyltin dichloride, dioctyltin dichloride, dibutyltin dibromide, dioctyltin. There are dibromide, tributyltin chloride, trioctyltin chloride and the like, and even if they are used alone,
You may use together 2 or more types. In particular, it is preferable to use a halogen-containing organotin compound.

Such a coating agent of the present invention is generally used for 100 parts by weight of acrylic resin.
Methyl hydrogen silicone oil 1.0 to 70 parts by weight (preferably 2.0 to 40 parts by weight), organotin compound 1.0
˜50 parts by weight (preferably 2.0 to 40 parts by weight), and when the amount of methylhydrogen silicone oil is less than 1.0 parts by weight, the ability of the disperse dye to prevent migration and sublimation remarkably decreases. On the other hand, if the amount is more than 70 parts by weight, the compounded resin liquid is easily separated and the storage stability is lowered.

Further, in the present invention, in order to impart solvent resistance to the acrylic resin, the resin liquid may contain a crosslinking agent such as polyisocyanate resin and melamine resin.

Next, the solvent used for producing the acrylic resin liquid may be any solvent which can dissolve the resin, such as toluene,
Aromatic solvents such as xylene, ester solvents such as ethyl acetate, ketone solvents such as methyl ethyl ketone and methyl isobutyl ketone, chlorine solvents such as 1,1,1-trichloroethane and perchloroethylene, and dimethylformamide. However, it is not limited to these. Further, these solvents may be used alone or in combination of two or more kinds.

The coating method of the present invention is a dry coating method such as knife coater, knife over roll coater, blanket knife coater, inverted knife coater, direct roll coater, reverse roll coater, gravure coater, kiss coater, bead coater, etc. Can be preferably used.

[0016]

EXAMPLES Next, examples of the present invention will be shown. The component ratios in the examples are shown by weight ratio unless otherwise specified. Example 1 Polyester taffeta having a warp density of 80D / 48f and a weft density of 80D / 48f (1250VIA manufactured by Kanebo Co., Ltd.) was used as a disperse dye (CI Red 152) 2% o. w. f. Was dyed at a temperature of 130 ° C., and then heat set at a temperature of 180 ° C. for 1 minute. This dyed polyester cloth is coated with an acrylic resin liquid having the following composition with a knife coater, dried at a temperature of 120 ° C for 2 minutes, and further heated at a temperature of 170 ° C.
Heat set for 30 seconds to obtain a coated fabric.
The resin coating amount was 3 to 41 g / m ² (dry conversion). The obtained coated cloth was tested by the following test method, and as a result, it was found that transfer sublimation of the dye was small. The test results are shown in Table 1. Mixed resin liquid Acrylic resin solution ^{* 1} 95.2 parts by weight Methyl hydrogen silicone oil 4.8 parts by weight (Toray Dow Corning Silicone SH-1107) Melamine-based cross-linking agent ^{* 2} 1.5 parts by weight (Negami) Industrial Co., Ltd. Paracron MB-111 conc) Melamine crosslinking cocatalyst ^{* 3} 0.15 parts by weight (Negami Kogyo's Paraclone MB-2000 conc) Organotin compound ^{* 4} 1.5 parts by weight (Negami Kogyo's cat List C-46) However, as the acrylic resin solution and the methyl hydrogen silicone oil, Paraklon EX-210 (-COOH group-containing acrylic resin toluene solution-solid content 19%) and methyl hydrogen silicone manufactured by Negami Kogyo Co., Ltd. Oil mixed in a weight ratio of 100: 5) was used. * 1 Acrylic acid butyl ester: Acrylic acid ethyl ester: Acrylonitrile: Acrylic acid = 63.5: 2
A 19% toluene solution of a resin consisting of a 5: 10: 1.5 copolymer. * 2 Condensation resin consisting of melamine, formaldehyde and butanol: butanol: xylene = 50:30:20
Mixture of. * 3 Paratoluenesulfonic acid: isopropanol = 4
Mixture of 0:60. * 4 Dioctyltin dichloride: Toluene = 30: 7
Mixture of 0.

Comparative Example 1 In Example 1, a coating fabric was prepared by changing the coating resin solution to the following composition and the other conditions being the same, and tested in the same manner as in Example 1. The results are shown in Table 1. Acrylic resin solution ^{* 5} 100 parts by weight (Paracron KB-1000HV manufactured by Negami Kogyo Co., Ltd.) Melamine-based cross-linking agent ^{* 2} 1.5 parts by weight (Paracron MB-111 conc manufactured by Negami Kogyo Co., Ltd.) Melamine crosslinking co-catalyst ^{* 3} 0. 1 part by weight (Paraklon MB-2000 conc manufactured by Negami Kogyo Co., Ltd.) Silicon compound ^{* 6} 5 parts by weight (Poron Coat P manufactured by Shin-Etsu Chemical Co., Ltd.) Halogenated organotin compound ^{* 7} 0.05 parts by weight (Shin-Etsu Chemical Co., Ltd.) Catalyst PC) * 5 Acrylic acid butyl ester: Acrylic acid ethyl ester: Acrylonitrile: Methacrylic acid 2-hydroxyethyl ester = 63.5: 25: 10: 1.5 12% of resin composed of a copolymer Chlorethylene solution. * 6 A mixture of polydimethylsiloxane diol: perchlorethylene = 15: 85. * 7 Dibutyltin dioctoate: Toluene = 30: 7
Mixture of 0.

Examples 2 to 5 Coated fabrics were prepared and tested in the same manner as in Example 1 except that the dyes used were changed to the following dyes. The test results are shown in Table 1. Dyes used Example 2 C.I. 1. Blue 94 3.6% (owf) Example 3 Kiwaron Polyester Black R126 10.0% (owf) (Disperse dye manufactured by Kiwa Chemical Industry Co., Ltd.) Example 4 C.I. I. Violet 56 0.3% (owf) C.I. I. Red 146 0.8% (owf) C.I. 1. Blue 56 1.7% (owf) Example 5 C.I. I. Yellow 192 0.87% (owf) C.I. I. Red 35 0.15% (owf) C.I. 1. Blue 26 0.013% (owf)

Comparative Examples 2 to 5 Coated fabrics were produced and tested in the same manner as in Comparative Example 1 except that the dyes used were changed to the following dyes. The test results are shown in Table 1. Dyes used Comparative Example 2 Dyes similar to Example 2 Comparative Example 3 Dyes similar to Example 3 Comparative Example 4 Dyes similar to Example 4 Comparative Example 5 Dyes similar to Example 5

Example 6 The dye used was C.I. I. 2.1% of red 153 (ow.
f. ) And using a coating composition having the following composition, a coated fabric was produced in the same manner as in Example 1 and subjected to a migration sublimation test. The transfer sublimation test was also performed on the coated fabric after the washing test.
The results are shown in Table 2. Acrylic resin solution ^{* 1} 95.2 parts by weight Methyl hydrogen silicone oil ^{* 2} 4.8 parts by weight Isocyanate-based cross-linking agent ^{* 8} 1 parts by weight (Negami Kogyo's Paracron CL-conc) Organotin compound ^{* 4} 1 parts by weight (Catalyst C-46 manufactured by Negami Kogyo Co., Ltd.) However, as the acrylic resin solution and methyl hydrogen silicone oil, Paracron E manufactured by Negami Kogyo Co., Ltd.
X-210 (-COOH group-containing acrylic resin toluene solution-solid content 19% -mixed with methyl hydrogen silicone oil in a weight ratio of 100: 5)
It was used. * 8 A toluene solution containing 75% of polyisocyanate obtained by reacting 1 mol of trimethylolpropane with 3 mol of 2,4-tolylene diisocyanate.

Comparative Example 6 A coated fabric was produced in the same manner as in Example 6 except that the coating composition of Example 6 was changed to the following composition, and the same test was conducted. The test results are shown in Table 2. Acrylic resin solution ^{* 1} 95.2 parts by weight Methyl hydrogen silicone oil ^{* 2} 4.8 parts by weight Isocyanate-based cross-linking agent ^{* 8} 1 parts by weight (Negami Kogyo's Paracron CL-conc) However, the acrylic resin solution and methylhydro As Gen Silicone Oil, Paracron E manufactured by Negami Kogyo Co., Ltd.
X-210 (-COOH group-containing acrylic resin toluene solution-solid content 19% -mixed with methyl hydrogen silicone oil in a weight ratio of 100: 5)
It was used.

Comparative Example 7 A coated fabric was produced in the same manner as in Example 6 except that the coating composition of Example 6 was changed to the following composition, and the same test was conducted. The test results are shown in Table 2. Acrylic resin solution ^{* 9} 100 parts by weight (Elcoat BX-14 manufactured by Negami Kogyo Co., Ltd.) Isocyanate-based cross-linking agent ^{* 8} 1 part by weight (paraclone CL-conc manufactured by Negami Kogyo Co., Ltd.) * 9 Acrylic acid butyl ester: acrylic acid ethyl ester : Acrylonitrile: Acrylic acid = 68.5: 2
It is a 14% solution of a resin consisting of a copolymer of 0: 10: 1.5, and the solvent is a mixture of toluene: ethyl acetate = 9: 1. The migration sublimation test in the examples was performed by the following method. JIS method-5 cm × 5 cm test cloth is prepared, and the coating surface of the coating cloth is the same undyed polyester taffeta as the test cloth coated with the same coating agent used for each test cloth. The surfaces are brought into contact with each other and left at a temperature of 120 ± 2 ° C. for 80 minutes under a load of 0.2 Kg / cm ² , and the degree of contamination of the undyed fabric is judged by gray scale (JIS). According to the N method-JIS method, under a load of 0.4 g / cm ² ,
After being left to stand at a temperature of 60 ° C. for 48 hours, the degree of contamination of the undyed fabric is judged by gray scale (JIS). According to K method-JIS method, under a load of 0.2 g / cm ² ,
It is left to stand at a temperature of 130 ° C. for 90 minutes, and the degree of contamination of the undyed fabric is judged by gray scale (JIS). Washing test method-Complies with JIS L-0844 method.

[0023]

[Table 1]

[0024]

[Table 2]

[0025]

The coating agent of the present invention is excellent in the ability to prevent migration and sublimation of disperse dyes. Therefore, simply applying this coating agent to a polyester fiber fabric dyed with a disperse dye. In addition, migration sublimation of the dye can be very effectively prevented, and at the same time, a desired coating processing effect can be sufficiently obtained.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location D06M 15/643 D06P 5/10 DBC // D06M 101: 32 D06M 15/643 (72) Inventor Sugano Shunji Ho-45, Kamifukuda Town, Kaga City, Ishikawa Prefecture

Claims (2)

[Claims] 1. A coating processing agent for a polyester fiber cloth, which is prepared by mixing an acrylic resin liquid with methyl hydrogen silicone oil and an organic tin compound. 2. A polyester having a coating layer capable of preventing migration and sublimation of a disperse dye, which is obtained by coating a polyester fiber cloth dyed with a disperse dye with the coating processing agent according to claim 1 and drying. Fiber cloth.