JPS60215882A - Dyeing of p/c fiber - 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 coloring blended fibers of polyester and cellulose (hereinafter simply referred to as P/C fibers). Specifically, the present invention relates to a novel l-bath single-stage multiplicative coloring process for dyeing P/Cm fibers using reactive dyes and disperse dyes.

Generally, polyester fibers are acidified (p) by disperse dyes.
It is known that cellulose fibers can be dyed under alkaline (paz2) with reactive dyes at 30-g under alkaline (paz2).

It is known that staining can be carried out at ℃.

Therefore, in the case of P/C fiber, which is the target fiber of the present invention, the polyester fiber portion is dyed using a disperse dye.
It also has the disadvantage of having to dye the cellulose fibers using reactive dyes.

In addition, a bath-throw method (slide method) has been proposed in which the pH of the dyeing bath is changed from alkaline to acidic to adjust the pH in one bath, but this method is difficult to reproduce μ adjustment;
Furthermore, since each dyeing temperature is different, it has the disadvantage that it has to be dyed in two stages.

Recently, a method has been proposed in which p7C fibers are dyed in one bath using a specific reactive dye and a disperse dye (Japanese Patent Application Laid-Open No. 11-11141A).

However, this document does not explain which reactive dyes and which disperse dyes are used when dyeing p7'c fibers.
・Furthermore, since there is no concrete explanation of the conditions at that time, it is impossible to actually implement it.

An object of the present invention is to provide a method for dyeing P/C fibers in one bath using specific reactive dyes and disperse dyes under specific conditions.

That is, the fJJ4 of the present invention is a 'disperse dye and the general formula (1)
1. A method for dyeing P/C fibers, which comprises dyeing using a reactive dye represented by: in an aqueous medium having a pH of 7 to 30C at a temperature of lλ0 to /30C.

General formula [■]: (In the formula, X represents a fluorine atom or a chlorine atom, and R1
, R2, BS, R4 are a hydrogen atom or an alkyl group which may have a lit group. DI, DR are an azo type, metal-containing azo type, formazan having at least one sulfonic acid group or carboxylic acid group. Representation of phthalocyanine-based or anthraquinone-based dye residues,
A represents an arylene group, alkylene or -NHCONH- which may have a substituent, and m represents O or l. As YoD, the following can be repaired.

(-) Azo dye residue: (b) Metal-containing azo dye residue: (d) Phthalocyanine dye residue: However, Fc is a phthalocyanine residue.O(・)Anthraquinone dye residue: Formazan type In particular, those containing azo-based and formazan-based dye residues are preferred.

In addition, Bl to R4 include alkyl groups which may have substituents such as methyl group, ethyl group, propyl group, butyl group, and β-hydroxyethyl group in addition to the hydrogen atom; atoms and chlorine atoms.

The following are accepted as A: (a) Arylene group: 08H (b) Alkylene group -CH, CH2-, -CH, CH, CH, -1-C
H, CH2CH, -, -CH, C horse CH2CH, CH,
-T,) The dye represented by the general formula [I] used in the present invention is, for example, the dye l mole represented by the general formula [11] (wherein Dl and R are the same as above). Ratio and the following general formula [Emperor] (in the formula, D2, x,
n is the same as defined above. ) and the chemical compound f! represented by the following general formula [1v] (wherein R1 and A are the same as defined above). It is easily produced by condensation in a 1 molar aqueous medium according to a conventional method.

The dispersed fruits used in the method of the invention are preferably warm [
/ J o −/ , 7 s C (under D+, pH 7~
? can be selected from any known dye that is stable at . Namely, monoazo dyes, disazo dyes, anthraquinone dyes, quinophthalone dyes, perinone dyes, naphthalic acid dyes and the like can be mentioned.

The mixing ratio of the disperse dye and the reactive dye of the present invention can be arbitrarily changed depending on the polyester/cellulose blend ratio. Disperse dye works well.

In order to dye P/C fibers by the method of the present invention, preferably the following method may be used.

First, salts such as reactive dyes and mirabilite! Dissolve in an aqueous solution containing 0-10 o yyt. Next, a disperse dye and a buffer solution are added to adjust the pH to 7-9. P/'C fibers were immersed in this solution, and the temperature was gradually raised from about 30°C, and the temperature was increased to 1λO ~ 13sc.

Dye for ~60 minutes ◎ Adjustment of dyeing bath pn 7 to 9 is, for example, - Sodium phosphorus dihydrogen - Borax, Disodium phosphorus hydrogen - Potassium dihydrogen phosphorus, Potassium dihydrogen phosphate - Sodium hydroxide , boric acid-potassium chloride-sodium hydroxide,
Glycine - Sodium chloride - Sodium hydroxide, Borax - Hydrochloric acid, Potassium dihydrogen phosphate - Disodium hydrogen phosphate, Potassium dihydrogen phosphate - Borax, Ammonium chloride - Aqueous ammonia, Sodium diethyl barbylate -
This is carried out using buffer solutions such as sodium acetate-hydrochloric acid, borax-potassium chloride-sodium carbonate, and disodium hydrogen phosphate-Quenn's isthmus.

Furthermore, during dyeing, small amounts of tertiary amines, such as triethylamine, triethanolamine, nicotinic acid, L, 4L
-Diazabicyclo(2,2,2)-Octane, innicotinic acid, etc. can be added to increase the reactivity.

Although the addition of tertiary amines is not particularly recommended,
It is preferable to add it in an amount equal to or double the amount of the reactive dye of the present invention.

Examples of the P/C fibers in the present invention include blended fibers of ultrafine polyester and cellulose fibers such as cellulose, hemp, regenerated cellulose, and polynosic, and their forms include knitted fabrics, woven fabrics, and nonwoven fabrics.

Hereinafter, the method of the present invention will be explained in more detail with reference to Examples.

Example 1 A reactive dye θ31 represented by the following structural formula was dissolved in 00 ml of water containing 01 sodium sulfate. A fractional dye QSf5 represented by the following structural formula was added to this bath, and further a sodium dihydrogen phosphate water bath 1(υ/M)/76- and a borax solution (0, OjM) KJ! - add a buffer solution consisting of
The pH was adjusted to 9, and 30 fl' of PAl [a (t"') ester/cellulose (6s/as)) blended fabric was prepared.
The sample was immersed in JJZ, heated from 30°C, and stained with /J17C for 30 minutes. Next, the dyed product was washed with water, non-pinked in an aqueous solution containing 0.2% nonionic detergent at a bath ratio of 1:30 for 20 minutes at gθ°C, washed with water, and dried.

As a result, a dyed product with a deep red neck dyed on both polyester fibers and cellulose with good fastness, especially light fastness and wet self-fastness, was obtained. The reactive vegetable Q3f expressed by mirabilite/! Water containing f'f7 - dissolved in 〇〇ml. In this bath, the following structure C4H is added.

Disperse dye θ5y- and nicotinic acid 0, g
In addition to ffk, a pH 7 buffer e consisting of disodium phosphorous hydrogen and potassium phosphorous dihydrogen, iomty
r: In addition, it was adjusted to liquid i pH 7, and P/C fiber 1m'
30 ft of blended fabric (polyester/cellulose (A5/35)) was immersed and dyed at 1 aoc for 60 minutes. Next, dyeing was carried out in the same way as in the case of washing with water, no pink, washing with water, drying, and dyed both polyester and cellulose in a line color. A greenish-yellow dyed product was obtained.

Example 3 A reactive dye represented by the following structural formula was used in place of the reactive dye used in Example 1, a disperse dye represented by the following structural formula was used in place of the disperse dye used in Example 1, and others. When P/Ch fibers were dyed in the same manner as in Example 1, both polyester and cellulose were dyed in a linear color, and an orange dyeing with good color fastness, especially light fastness and wet @ verticality was obtained. P/C fibers were dyed using the reactive dyes and disperse dyes shown above to obtain dyed products with excellent light fastness and wet fastness. The result t' is shown in Table 1◎

Claims (1)

[Claims] (1) Using a disperse dye and a reactive dye represented by the general formula [l], in an aqueous medium with a pH of 7 to 1,
), a dyeing method for P/c fibers characterized by turning vermilion at a temperature of General formula [I]: (wherein, X represents a fluorine atom or a chlorine atom V, R1
, R2, R3, and R4 represent a hydrogen atom or an alkyl group that may have a substituent, and DI and Dt represent an azo group, a metal-containing azo group, and a formazan group having at least one sulfonic acid group or carboxylic acid group. series, phthalocyanine y series t
r:. represents an anthraquinone dye residue, A is an aryle which may have a substituent, and B is -OH-C.
H- or -NHCONH-i, m is O or l
)).