JPS5825792B2 - Color resist dyeing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color resist dyeing method, and more particularly to improvements in color resist dyeing of textile products using a polyvalent metal compound as a resist dye.

The purpose is to improve the build amplification properties of colored dyes without impairing the resist properties, and to obtain a colored resist-dyed surface with excellent clarity.

Conventionally, as a resist dyeing method for synthetic fiber products such as polyester and cellulose acetate, physical resist dyeing methods using activated carbon, activated clay, wax, etc., and reducing agents such as stannous chloride and polyvalent metal compounds have been used. A chemical resist dyeing method using a chelate forming agent or the like with a dye is known.

From the viewpoint of continuous printing performance, operational stability, etc. in autoscreen printing, chemical resist dyeing methods using polyvalent metal compounds have attracted particular attention.

However, although the colored resist dyeing method using a polyvalent metal compound as a resist dye gives a good colored resist dyeing effect in the conventional high-pressure steam dyeing process, in recent years it has been increasingly used from the viewpoint of continuous operation and economic efficiency. Certain high-pressure steam methods and thermosol methods have the disadvantage that the build-up properties and sharpness of colored dyes in color resist dyeing are insufficient, resulting in printed products of significantly inferior quality.

As a result of intensive research into the cause and solution, the present inventors found that dye fixation is the cause of the indistinct hue of the colored pattern on the colored resist dyeing surface and insufficient build-up properties in the high-temperature steam method or thermosol method. It is known that not only the temperature and time of printing, but also the type and amount of polyvalent metal compounds contained in the printing paste, the amount of water contained in the printed fabric, etc. greatly affect the clarity and build-up performance. Knew.

In other words, in color resist dyeing using a resist dye containing a polyvalent metal compound, the phenomenon of blurring of the colored dye or poor build-up during high-temperature steam or thermosol coloring is due to a decrease in the diffusion and transfer of the dye to the fibers in the presence of trace amounts of moisture. The main cause is thought to be the chemical or physical bond between the polyvalent metal compound and the dye, and the inhibition of dye adhesion to the fibers due to a decrease in the dispersibility of the dye due to the polyvalent metal compound.

However, in the case of colored resist dyeing KL using high-temperature steam or thermosol methods, which can hardly be expected to increase the moisture content of the fabric during dye fixation, the excellent dyeing promotion effect of high-temperature steam or thermosol dye fixation in normal textile printing is not expected. Adding carriers, surfactants, moisture absorbers (sodium chloride, urea), etc. during the coloring and resisting stage has little or no effect;
Many surfactants have the fatal drawback of significantly reducing dye resistance.

The inventors of the present invention have further conducted intensive research into a colored resist dyeing method that does not have such drawbacks, and have arrived at the method of the present invention.

That is, in the present invention, a resist dyeing paste containing a polyhydric alcohol with a boiling point of 150° C. or more and a molecular weight of 800 or less and a polyvalent metal compound is printed on a textile product in the form of a pattern, then overprinted with the printing paste, and then heated at a high temperature. This is a colored resist dyeing method characterized by fixing the dye using a steam method or a thermosol method.

When using the method of the present invention, the build amplification property of the differential color dye,
It is possible to provide an excellent colored resist-dyed product with extremely high commercial value, since the clarity is significantly improved and the resist-dyeing property of the polyvalent metal compound is not impaired in any way.

In addition, there are no disadvantages such as decreased light fastness, decreased desizing ability, and decreased dye resistance that occur when using a carrier as a deep dyeing agent, as well as stains caused by dye aggregation and decreased film strength. It has the advantage of improving adhesive properties, etc.

Furthermore, there are no disadvantages such as screen clogging, decrease in dye resistance due to decrease in chelate binding ability due to pH change, and mold border failure that occur when using sodium chloride, urea, etc. as a moisture absorbent.

Although it is not clear why the method of the present invention provides excellent build-up properties and sharpness without deteriorating resisting properties, it is clear that certain polyhydric alcohols have a physical effect between polyvalent metal compounds and differential color dyes. Promotes dyeing of differential color dyes by suppressing chemical bonding and effectively maintaining differential color dyes in a dispersed or fermented state even in the presence of large amounts of polyvalent metal compounds and in the absence of water. However, this is thought to be because the chelate reaction between the dye and the polyvalent metal compound in the textile printing (reverse printing) width is not interfered with, thereby maintaining an excellent resist dyeing effect.

To explain the method of the present invention in more detail, the polyhydric alcohols used have a boiling point of 150°C and a molecular weight of 800 or less, and specifically, ethylene glycol, diethylene glycol, flopylene glycol, and sifropylene. glycol, polyethylene glycol,
Examples include polypropylene glycol, polyhydric alcohol, ethylene oxide adduct, glycerin, polyglycerin, polyhydric alcohol, propylene oxide adduct, etc., and in particular, those having a boiling point of 200°C or higher and a molecular weight of 500°C.
The following polyhydric alcohols are preferred, especially glycerin,
Particularly preferred are polypropylene glycol, glycerin, and propylene oxide adducts.

The amount used varies depending on the type and amount of the polyvalent metal compound, but is usually 2 to 10 parts by weight, preferably 4 to 8 parts by weight, based on the resist dyeing paste.

In addition, the polyvalent metal compounds to be used include all polyvalent metals that have chelate-forming ability, such as sulfates, nitrates, acetates, carbonates, etc. of copper, aluminum, iron, chromium, cobalt, nickel, barium, calcium, etc.・Rogenides, hydroxides, etc. may be used, and they may be used singly or in combination of two or more, but it is particularly preferable to use a combination of an acidic compound and an alkaline compound from the viewpoint of the resisting effect.

The amount used varies depending on the desired resist dyeing effect and light resist dyeing to medium dark resist dyeing, but is usually 5 to 50 parts by weight, preferably 15 to 35 parts by weight, based on the resist dyeing paste.

The VC of the present invention is a resist dyeing paste consisting of the above-mentioned polyhydric alcohols, polyvalent metal compounds, dyes for different colors, base paste, and optionally auxiliary agents (pH adjuster, metal ion sequestering agent, amphoteric surfactant), etc. After printing into a pattern, a printing paste containing the dye to be resist-dyed is overprinted, and after drying, the dye is fixed using high-temperature steam or thermosol method.

In particular, the textile products to which the present invention is applied include polyester,
Products containing hydrophobic fibers such as polyamide, acetate,
Products containing hydrophilic fibers or glass fibers treated with hydrophobic synthetic resins, etherified or esterified hydroxyl group-containing textile products, polyols or their derivatives, amide compounds, aromatic compounds, alkylene oxide-added nonionic products Disperse dye dyeable textile products, such as products containing hydrophilic fibers such as cellulose, silk, polyvinyl alcohol, etc., pretreated with compounds, etc., or complexes of ionic dyes and compounds with opposite charges to the ions. Fiber products dyeable with disperse dyes are preferred, and polyester fiber products are particularly preferred.

Textile products include fibers, tows, warped threads, knitted fabrics, nonwoven fabrics, synthetic papers, rugs, tapes, and the like.

In addition, dyes that can be resist-dyed in the present invention include dyes having a chemical structure that can be chelated with polyvalent metals, dyes dispersed with dispersants that interact with polyvalent metals, and lose their dispersion effect, etc. , specifically anionic group-containing dyes and disperse dyes that can react with polyvalent metals, disperse dyes dispersed with anionic activators that can react with polyvalent metals,
Examples include a complex between an anionic dye and a cationic compound, a complex between a cationic dye and an anionic compound, and the like.

However, examples include disperse dyes having a chemical structure that can react with and chelate polyvalent metals.

In addition, dyes that do not react with polyvalent metals or have low reactivity can be used as coloring dyes for color resist dyeing KL-.
In particular, disperse dyeing that does not or is difficult to react with polyvalent metals and thus resists KL using polyvalent metal compounds.
- By fixing the dye using a high temperature steam method or a thermosol method, it is possible to efficiently obtain a colored resist-dyed product with excellent clarity and build-up properties.

The present invention will be explained below with reference to Examples.

In addition, the parts and buttons in the examples are parts by weight.

Example 1 A pattern was printed on a polyester processed yarn fabric (suede) using a flat screen printing machine using resist dyes a) and (b) having the following formulations.

Next, the entire surface was overprinted with a printing paste consisting of C, I, 6 parts of Disbirds Flu 26, 7 parts of a locust bean gum paste, and 70 parts of water, dried, and then printed at 175°C for 1 hour.
Steam at high temperature for 0 minutes, rinse with water, soak, rinse with water,
Dry.

As a result, in the present invention using the resist dyeing paste (a), a colored resist dyed product with an extremely clear orange color on a blue background and excellent build-up properties was obtained.

On the other hand, in the comparative example using resist dyeing paste (b), the sharpness of the differential color dye and the build-up property were insufficient.

Note that similar results were obtained when dye fixation was carried out at 200° C. for 90 seconds instead of using thermosol.

Example 2 A resist dyeing paste having the following formulation was printed into a pattern on a textured yarn fabric made of 100φ polyester fibers using a flat screen printing machine.

Next, C, I, 82 parts of Disbirds Yellow, C, I,
A printing paste consisting of 146.25 parts of Disperse Red, 1 part of Disperse Blue 26, 8 parts of guar gum paste, and 5 parts of 86 parts of water was overprinted on the entire surface, dried, and then heated with high temperature steam. 8 at 180°C
After steaming for a minute, it was washed with water and dried.

The results are shown in Table-1. As a result, by the method of the present invention, the sharpness and build-up property of the differential color dye were significantly improved, and an excellent colored resist dyed surface was obtained.

In the present invention, particularly glycerin and polypropylene glycol having a molecular weight of 300 or less were excellent.

On the other hand, in Comparative Examples A7 to A10 in which carriers were used, the resistance to dyeing was significantly reduced.

Comparative example/16 using a normal dyeing agent for high-temperature steam
Some of Nos. 11 to 19 improved the build-up property to some extent, but most of them lowered the resistance to dyeing and markedly deteriorated the quality of the colored resistance surface.

I) Moisture absorption valves such as ram, urea, etc. are completely ineffective in improving the sharpness of color retention and build-up properties, and they also have drawbacks such as decreased continuous printing performance due to screen clogging, etc. occured.

Example 3 A pattern was printed on a 100-pound polyester fabric using a flat screen printing machine using a resist-dyeing paste with the following formulation.

Next, the entire surface was overprinted using a printing paste with the same formulation as in Example 2, and after drying, it was coated with a high temperature steamer.
Steamed at 75°C for 8 minutes, washed with water, dumped, washed with water,
Dry.

The results are shown in Table-2.

As a result, the printed product obtained by the method of the present invention had a colored resist surface that was excellent in both orange clarity and build-up property on a brown background.

On the other hand, in comparison with the use of a commercially available deep dyeing agent for high-temperature steam, the build-up of the square difference color was not only insufficient, but also the resistance to dyeing was markedly reduced, making it impossible to obtain a brightly colored resist-dyed product.

Among them, as shown in Table 3, in the high-temperature steam that is normally used for printing, the carrier, deep dye,
On the contrary, the effect obtained by polyhydric alcohols is unique to colored resist dyeing using polyvalent metal compounds, since the moisture absorbing agent has a strong dyeing effect.

Claims (1)

[Claims] 1 Textile products with a boiling point of 150°C or higher and a molecular weight of 80
Colored resist dyeing characterized by printing resist dyeing paste containing 0 or less polyhydric alcohols and polyvalent metal compounds in a pattern, then overprinting the printing paste, and then fixing the dye by high temperature steam or thermosol method. Law.