JPS58163792A - Dyeing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method for dyeing a structure containing fibers.

Previously, attempts have been made to dye cellulose fibers well using dyes such as disperse dyes, which do not naturally dye cellulose fibers.
-517!14, Japanese Patent Publication No. 50-12389, Japanese Patent Application Publication No. 1973-12389
-48213, Japanese Patent Publication No. 1983-90788, Special Publication No. 1973-
29552, etc., JP-A-50-187, which is mainly carried out by fiber processing methods, or which chemically modifies cellulose fibers that usually have no affinity for disperse dyes.
78, JP-A-51-99185, etc. are mentioned. However, these methods of treating fibers use relatively simple packaging, and the color fastness, especially wet fastness, is not good. On the other hand, conventional methods of chemically modifying cellulose fibers have poor workability due to the irritation and odor of the chemical agent itself, and require very expensive equipment investment. In order to solve these problems, the inventors first applied an alkaline agent and a 17111m compound such as P-toluenesulfonyl chloride to cellulose fibers or cellulose fiber-containing structures in any order, and then further steamed or dried them. He invented a dyeing method that involves chemical modification through heat treatment, followed by direct or transfer printing with disperse dyes, oil-soluble dyes, mordant dyes, basic dyes, vat dyes, etc., and applied for a patent.

Furthermore, an invention has also been filed in which the present invention can be further simplified by applying such an acid chloride in an emulsified state in water. The present invention is a version of these conventional inventions that is more effective and has increased productivity.
It is characterized by particularly excellent color fastness.

That is, the present invention provides a method for preparing cellulose fiber structures and cellulose fiber-containing structures by adding an alkali agent in an amount of 1 to 20% of the weight of the cellulose fiber structures and cellulose fiber-containing structures in advance. By applying a lifespan of 5 to 40% of the weight of the product and subsequently applying steam heat treatment or dry heat treatment, the cellulose fibers in cellulose fiber structures and cellulose fiber-containing structures are given a no-logenated aroma having the structure shown in F. group sulfonyl group, then disperse dyes, oil-soluble dyes, mordant dyes,
This is a dyeing method that involves direct or transfer printing with basic dyes, vat dyes, etc.

In addition, as a method for applying P-chlorobenzenesulfonyl chloride'YNt to cellulose fiber structures and cellulose fiber-containing structures to which an alkaline agent has been applied in advance, the aromatic sulfonic acid chloride is added to the cellulose fiber structures and cellulose fiber-containing structures in an appropriate solvent. A method of immersing it in a diluted solution and squeezing it with a squeezing machine such as a mangle, or a method of making an emulsion in water using a surfactant and a thickener, and coating it with a coating machine such as a rotary screen. Alternatively, it is possible to leave the aromatic sulfonic acid chloride in a gas atmosphere for a predetermined period of time. According to the present invention, the dyeing has extremely superior color fastness compared to dyed products obtained by dyeing after esterification such as acetylation, benzoylation, and tosylation of cellulose fibers that have been known in the past. You can get things. In addition, by further introducing a rogenated aromatic sulfonyl group having the above structure into the cellulose fibers and then treating them with a disperse dye dyeable resin, it is possible to obtain even more immediate color value. Moreover, by treating the fiber with a fiber crosslinking agent and a crosslinking catalyst after introducing such a halogenated aromatic sulfonyl group, an extremely strong dyed product can be obtained.

In addition, in the present invention, it is necessary to introduce the rogenated aromatic sulfonyl group into the cellulose mm to a degree of substitution of 0.2 to 05.

Here, the conversion degree refers to the average value of hydroxyl groups substituted by halogenated aromatic sulfonyl groups among the three hydroxyl groups present in one glucose unit of cellulose,
Actually, it is calculated using the NM method as follows.

Here, 162.08 is the molecular weight of 1 glucose unit, and 1 is the atomic weight of hydrogen.

In the present invention, the reason why it is necessary to set the degree of substitution to 0.2 to o5 is that the degree of substitution is 0.2 from the viewpoint of color development and fastness after dyeing.
This is because it was confirmed that the degree of substitution needs to be 0.5 or less in view of the texture and hygroscopicity of the fibers.

The alkaline agents used in the present invention include, for example, lithium, sodium, potassium, beryllium, magnesium,
These are hydroxides of alkali metals or alkaline earth metals such as calcium, barium, and strontium.

In the method of adding P-chlorobenzenesulfonyl chloride to cellulose fiber structures and cellulose fiber-containing structures to which an alkali agent has been added in advance, suitable solvents used in the immersion method include benzene, Aromatic organic bath media such as toluene and xylene, or nonflammable common media such as trichloroethylene, tetrachloroethylene, and 1.1.1-trichloroethyne, which can be emulsified in water using surfactants and thickeners. When adding, it depends on the viscosity adjustment, roll coating method, spray coating method,
Air knife coating method, flow coating method, gravure coating method, rotary screen method, etc. can be used.

Further, in the present invention, the fiber JJ! The crosslinking agent is, for example, dimethylol urea, dimethylol propylene urea,
Dimethylol dihydroxyethylene urea, dimethylol uron, trimethylol melamine, trimethoxymethyl melamine, dimethylol methyl triazone, dimethylol ethyl triazone, dimethylol hydroxyethyl triazone, dimethylol methyl carbamate, dimethylol ethyl carbamate, dimethylol Hydroxyethyl carbamate, N-methylol acrylamide, methylol glyoxal monourea, methylol glyoxal diurea, formaldehyde, tetraoxane, glitaraldehyde, jepoxide, divinyl sulfone, 4-methoxy-5-dimethyl dimethylol propylene urea, tetramethylol acetylene diurea, etc. Examples of crosslinking catalysts include organic acids such as acetic acid and maleic acid, ammonium salts such as ammonium chloride and ammonium sulfate, amines such as ethanolamine hydrochloride and 2-amino-2-methylfuropanol hydrochloride, magnesium chloride, and nitric acid. Zinc, zinc chloride, magnesium nitrate,
These include phofukka zinc, aluminum chloride, and magnesium phosphate.

In addition, in the present invention, resins that are dyeable with disperse dyes include aminoalkyd resins, polyamides, urethanes, vinyl chloride, vinyl acetate, polyesters, acrylics, acetals, polyvinyl alcohols, vinylithine chloride, vinyl acetals, styrene, Polycarbonate, epoxy resin, etc.

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

[Example-1] (1) Mercerized polyester/cotton 265
/35 blended broad cloth was immersed in a 10% aqueous sodium hydroxide solution, squeezed with a squeezing roll to a squeezing rate of 90%, and heated to 100°C with a pin tenter open.
It was dried by heating for 30 seconds.

Next, this alkali-applied cloth was immersed in a treatment solution of the following formulation (a), squeezed with a squeezing roll to achieve a squeezing rate of 100%, and then air-dried. After air drying, this fabric was dried at 100℃, 90℃.
The fabric was steamed for seconds, washed pink, washed with water, and dried to obtain a modified fabric.

(B) Overlap the modified fabric obtained in Prescription 12H1L with a transfer paper obtained by gravure printing with ink of the following composition,
Transfer printing was performed under the conditions of 95° C., pressure of 5009/cd, and time of 40 seconds, and a dyed cloth with extremely uniform density was obtained. Furthermore, the color fastness was also extremely good.

Ink〉 [Example-2] (1) 100% mercerized cotton broadcloth
After being immersed in a 0% aqueous sodium hydroxide solution, it was squeezed with a squeezing roll to a squeezing rate of 90%, and then heated and dried at 100° C. for 30 seconds with an open pin tenter. Next, this alkali-applied cloth was rotary screen coated using an emulsion in water with the following formulation (b) with a solid plate having a number of lines of 40 lines/inch, a nickel plate thickness of 150μ, and a porosity of 50%, followed by a bin tenter oven. Heat at 80℃ for 90 seconds,
Thereafter, a modified fabric was obtained through a nooping and water washing process.

(b) Prescription (The modified fabric obtained in 21 was superimposed on the transfer paper described in (2) of [Example-1], at a temperature of 195°C and a pressure of 3oo,
! When transfer printing was performed under the conditions of il/c+d and 1 hour and 40 seconds under heating and pressure, a dyed cloth with extremely uniform density was obtained. Moreover, the color fastness was also good.
・ [Example-6] “(1) The modified fabric obtained in (11) of [Example-2] was immersed in a treatment solution with the following composition, and then the squeezing rate was 80% with a mangle.
After that, with the pin tenter open, the temperature is 10
Temporary drying was performed at 0°C for 30 seconds, and further curing was performed at 160°C for 2 minutes. This treated fabric was thoroughly washed with hot water and water, and then dried to obtain a crosslinked fabric. 6 (Treatment liquid) +201) The crosslinked fabric obtained in [Example-1] (
This was overlapped with the transfer paper described in 2), and transfer printing was performed under the conditions of temperature 195° C., pressure 600 g/ciI, and time 40 seconds to obtain a dyed cloth.

When this dyed cloth was subjected to a color fastness test (Y), it was found to be extremely good in wet fastness, especially against washing and perspiration.

Claims (1)

[Claims] (11 Cellulose fiber structure Oyohi cellulose 111 m
A halogenated aromatic sulfonyl group having the following structure is introduced into the cellulose fibers in the containing structure, and then directly or A dyeing method characterized by transfer printing. (2) The method according to claim (1), wherein the transfer printing is dry transfer printing using a heat transferable dye such as vaporizable or melt-transferable dye. (After introducing the 3-rogenated aromatic sulfonyl group,
The method according to claims (1) to (21), characterized in that the method is treated with a resin that has dyeing properties for disperse dyes. (4) A halogenated aromatic sulfonyl group. The method according to claims (1) to (3), characterized in that after introducing the fibers, the fibers are further treated with a fiber crosslinking agent and a crosslinking catalyst.