JPS5828394B2 - Fixing method of reactive dyes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method for fixing reactive dyes.

More specifically, the present invention is a method for fixing a reactive dye, which is characterized by using a compound represented by the following general formula when coloring a fiber material in a continuous manner using a reactive dye.

[In the formula, Ar represents a benzene nucleus or a naphthalene nucleus, and these are halogen atoms, hydroxyl groups, alkyl groups that may be substituted with nonionic substituents, alkoxy groups, aryl groups, aryloxy groups, aralkyl groups, Can be substituted by an alkaryl group or a cycloalkyl group.

R2 represents an alkyl group optionally substituted with a halogen atom.

Y represents -o--coo- or -CH20-, m represents O or 1, and n represents an integer of 1 to 30.

R1 represents a residue of a water-soluble salt of phosphoric acid or sulfuric acid ester.

] For the continuous coloring of cellulose fiber materials or their synthetic fiber blends with reactive dyes, a one-bath method using a baking method or a two-bath method using a steam method is mainly used.

However, in general, these methods have a low fixation rate of reactive dyes to cellulose fibers, which often results in hot water staining of printed products and bleeding of dyes.

In addition, a low fixation rate is undesirable from the viewpoint of drainage measures and effective use of the dye.

As a result of intensive research to solve such problems, the present inventors have found that the compound represented by the above general formula (I) is effective in increasing the reactivity of reactive dyes to cellulose fibers and improving the fixation rate. It was discovered that the dyeing can be done uniformly.

The method of the present invention will be explained in more detail as follows.

An arbitrary amount of water is mixed with an arbitrary amount of reactive dye, urea, a compound represented by the general formula (I), a sizing agent, and bicarbonate of soda, a soda family, caustic soda, or an alkaline agent thereof if necessary. ☆☆Prepare a predetermined amount of padding liquid or printing dyeing paste using 0 Next, the liquid is uniformly applied to the cellulose fiber material or its synthetic fiber blended fabric using a padding or printing method.

This is dried at 80-120°C, baked at 130-210°C for 1-5 minutes, and soaped to achieve the desired result.

Note that a steaming process for 20 seconds to 5 minutes may be performed instead of the baking process.

Since the method of the present invention improves the fixation rate of reactive dyes to cellulose fibers, high-quality printed products without dye bleeding or hot water stains can be obtained.

In addition, it has a high color value and produces a dyed product with an even dyed surface without any irritation.

Furthermore, since unfixed dye is reduced, this method has great advantages in terms of drainage measures, and is also an industrially useful method.

Representative examples of the compound represented by the general formula (I) used in the method of the present invention include the following.

In addition, the water-soluble salts of phosphoric acid or acid esters of the compound represented by the general formula (I) include alkali metal salts such as sodium salts and potassium salts, organic amine salts,
Examples include ammonium salts, but are not limited to these.

The amount of the compound of general formula (I) used may be any amount, but preferably 0.05 to 100 parts of the total amount of the dye bath.
This is part 2.

As the sizing agent, any adhesive that does not react with the reactive dye can be used.

In general, sodium alginate is most preferred, and the amount used may be arbitrary depending on the purpose, preferably 1
The amount is 0.02 to 3 parts per 00 parts.

All commonly used reactive dyes can be used, but preferably those having the following reactive groups show good results.

Dichlortriazine, monochlortriazine, l-lichlorpyridine, dichlorquinoxaline, 4,5-dichloropyridazone, sulfate ethyl sulfone Applicable fibers include cellulose fibers such as cotton, rayon, and hemp, and their combination with polyester, etc. Examples include blended fabrics with synthetic fibers.

When dyeing a blended product, the reactive dye and disperse dye are used together.

As the disperse dye, commercially available powder dyes and liquid dyes can be used, but liquid disperse dyes produced using the compound represented by the general formula (I) are preferred.

As a fixing method, a baking method, a steam method, etc. can be applied.

Next, specific examples of the present invention will be illustrated by way of Examples.

Example 1 78.5 parts of water, 4 parts of C, I, and Reactive Flu 49
1 part, 0.5 part of the compound of (7) above, 10 parts of urea, 2 parts of soda ash and 5 parts of 1% sodium alginate solution were added and gently stirred to prepare a padding liquid having a total amount of 100 parts.

Next, a padding liquid was uniformly applied to the broad mercerized wire, and then it was dried uniformly by hot air drying at 80 to 120°C.

Next, after baking at 200°C for 60 seconds in a thermosol dyeing machine, 99.8 parts of water and 0.2 parts of Score Roll 400 (nonionic activator manufactured by Kao Atlas) were added.
A clear and highly concentrated blue dyed product was obtained by soaping at 97° C. for 5 minutes in a soap pink bath consisting of 50% water, washing with water, and drying.

In order to compare and confirm the effect of the compound according to the present invention, the surface concentration of the dyed material was compared with the case where the compound (7) was not added, and the results are as follows. It was acknowledged that it was effective.

Example 2 C used in Example 1, 1. reactive flu 490
The same procedure as in Example 1 was repeated except that 4 parts of C, I, and Reactive Fluor 71 were used instead, and a bright blue dyed product with high density was similarly obtained.

Example 3 Instead of the compound (7) used in Example 1, 0.5 part of the compound (3) or 0.5 part of the compound (5) was used.
The same results as in Example 1 were obtained except that 5 parts or 0.5 parts of the compound (8) was used.

Example 4 Add 4 parts of C, I, and Reactive Flu 49 to 18.5 parts of water.
0.5 parts of the compound (5), 65 parts of a 4% solution of sodium alginate, 10 parts of urea, and 2 parts of soda ash were added and gently stirred to prepare a textile dyeing paste having a total amount of 100 parts.

Next, a printing dyeing paste is uniformly printed on the broad mercerized line using a screen printing machine, and then
It was dried uniformly at ℃.

Next, the fabric was baked in a thermosol dyeing machine at 200°C for 60 seconds, and then soaked in the same soaping bath as in Example 1 at 97°C for 5 minutes to obtain a vivid and high-density blue print.

Example 5 79.4 parts of water, C0I, 4 parts of Disperse Flu 143, 4 parts of C,I, Reactive Blue 1, 0.5 part of the compound (7), 10 parts of urea, 1 part of soda ash. ,
1 part of sodium bicarbonate and 0.1 part of sodium alginate were added and stirred thoroughly to prepare a padding liquid having a total amount of 100 parts.

Next, a padding liquid was uniformly applied to the mixed woven fabric of weft Tetron and ginning cotton, and then the mixture was uniformly dried in a hot air dryer at 80 to 1.20°C.

Next, a thermosol dyeing machine was used to bake at 200°C for 60 seconds, followed by a soaping process at 97°C for 5 minutes in the same soap pink bath as in Example 1, followed by washing and drying, resulting in clear and uniform high-density dyeing. You can get things.

Example 6 4 parts of C,I, Disperse Blue 143 and 0.1 part of alginic soda were added to 95.9 parts of water and stirred thoroughly to prepare a padding liquid having a total amount of 100 parts.

Next, a padding liquid was uniformly applied to the mixed woven fabric of weft Tetron and ginning cotton, and then it was uniformly dried in a hot air dryer at 80 to 120°C.

Then, it was treated in a thermosol dyeing machine at 200°C for 60 seconds.

Furthermore, 95.4 parts of water was prepared separately, C,1,! After uniformly padding with a total amount of 100 parts of padding liquid prepared by adding 4 parts of J Active Blue 1, 0.5 part of the compound (8) and 0.1 part of sodium alginate and stirring gently, It was uniformly dried in a hot air dryer adjusted to ℃.

A total of 100 parts of an alkaline solution prepared separately, consisting of 73 parts of water, 2 parts of 40°Be' acidic soda, and 25 parts of common salt, was evenly padded with a pick-up rate of about 90%, and then 100 to 1
It was treated in a steamer at 05°C for 30 seconds.

Then, by carrying out ordinary water washing, acid treatment, water washing, and saw pink treatment, a bright and highly concentrated blue dyed product was obtained.

Example 7 The same results were obtained in the same manner as in Example 1 except that the compound (1) or (2) was used instead of the compound (7) used in Example 1.

Claims (1)

[Scope of Claims] 1. A method for fixing a reactive dye, which comprises using a compound represented by the following general formula (I) when coloring a textile material in a continuous manner using a reactive dye. (In the formula, Ar represents a benzene nucleus or a naphthalene nucleus, and these are . , an aralkyl group, an alkaryl group or a cycloalkyl group. R represents a hydrogen atom, -COOR2 or the formula -Y+cH2CHOCH1-R1. However, R2 represents an alkyl group which may be substituted with a halogen atom. Y represents -o--coo- or -CH20-, m represents O or 1, and n represents an integer from 1 to 30. R1 represents a residue of a water-soluble salt of phosphoric acid or sulfuric acid ester.] .