Environment-friendly type terylene low temperature dyeing assistant with alkyl phthalic imide as vector and preparation thereof

An alkyl phthalimide and low-temperature dyeing technology, which is applied in the fields of dyeing, textiles and papermaking, can solve the problems of decreased dispersion stability of dye liquor, long dyeing time, and difficult dyeing, and achieves bright color and Brightness, shorter dyeing time, and higher dyeing efficiency

Inactive Publication Date: 2008-12-24
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyester fiber has high crystallinity, high degree of orientation, and compact structure. Under standard conditions (20°C, relative humidity 65%), the moisture regain is only 0.4%, and the hygroscopic swelling is small during dyeing. It is difficult for macromolecules to diffuse into the fiber, so it is difficult to dye and the dyeing performance is poor
At present, polyester dyeing generally adopts three methods: first, high temperature and high pressure dyeing method, which requires high equipment, long dyeing time and high energy consumption.
Second, hot-melt dyeing method, this method consumes a lot of energy, and the product feels unsatisfactory after dyeing
At present, the polyester low-temperature dyeing carriers in the domestic and foreign markets are mainly concentrated in three categories: esters, ethers and their compounds. They have the effect of promoting dyeing at low temperature, but there are also the following problems: it is easy to cause dye liquor in the dyeing of polyester fibers. Dispersion stability decreases, and dyes aggregate to produce dyeing defects; it is difficult to remove the carrier after dyeing, resulting in a decrease in color fastness and stimulation of the fabric to the human body; some carriers are toxic or difficult to degrade, harmful to the human body and the environment; it is these factors that cause Low temperature dyeing method of polyester has not been widely used

Method used

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  • Environment-friendly type terylene low temperature dyeing assistant with alkyl phthalic imide as vector and preparation thereof
  • Environment-friendly type terylene low temperature dyeing assistant with alkyl phthalic imide as vector and preparation thereof
  • Environment-friendly type terylene low temperature dyeing assistant with alkyl phthalic imide as vector and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1-5

[0032] Select the high-temperature disperse dye Runtu Hongyu H-2GFL, the concentration is 2% (o.w.f), the dosage of dispersant NNO is 1g / L, the dosage of polyester low-temperature dyeing auxiliaries is 2g / L, the dosage of sodium hydrosulfite is 2g / L, Na 2 CO 3 The dosage is 4g / L, the dosage of 209 detergent is 2g / L, the dyeing pH value is 4-5, the bath ratio is 1:30, the dyeing process curve is shown in figure 1 , polyester low-temperature dyeing auxiliaries and corresponding dyeing results are shown in Table 1.

[0033] Table 1

[0034]

[0035] Note: A: Alkyl phthalimide compounds (N-butyl phthalimide: isopropyl phthalimide = 3:1), B: Nong emulsion 8206 , C: castor oil polyoxyethylene ether sulfonate: EL-60 sodium sulfonate, D: alkylphenol polyoxyethylene ether: TX-40; the mixing temperature of example 1-3 is 40 ° C, the mixing of example 4-5 The temperature is 60°C.

example 6-10

[0037] Select the high-temperature disperse dye Disperse Yellow S-4GL, the concentration is 2% (o.w.f), the dosage of dispersant NNO is 1g / L, the dosage of polyester low-temperature dyeing auxiliaries is 2g / L, the dosage of sodium hydrosulfite is 2g / L, Na 2 CO 3 The dosage is 4g / L, the dosage of 209 detergent is 2g / L, the dyeing pH value is 4-5, the bath ratio is 1:30, the dyeing process curve is shown in figure 1 , polyester low-temperature dyeing auxiliaries and corresponding dyeing results are shown in Table 2.

[0038] Table 2

[0039]

[0040] Note: A: Alkyl phthalimide compounds (N-butyl phthalimide: isopropyl phthalimide = 3:1), B: Nong emulsion 8206 , C: castor oil polyoxyethylene ether sulfonate: EL-60 sodium sulfonate, D: alkylphenol polyoxyethylene ether: TX-40; the mixing temperature of Example 6-10 is 50°C.

example 11-15

[0042] Select the high-temperature disperse dye disperse dark blue S-RE, the concentration is 2% (o.w.f), the dosage of dispersant NNO is 1g / L, the dosage of polyester low-temperature dyeing auxiliaries is 2g / L, and the dosage of sodium hydrosulfite is 2g / L. 2 CO 3 The dosage is 4g / L, the dosage of 209 detergent is 2g / L, the dyeing pH value is 4-5, the bath ratio is 1:30, the dyeing process curve is shown in figure 1 , polyester low-temperature dyeing auxiliaries and corresponding dyeing results are shown in Table 3.

[0043] table 3

[0044]

[0045]Note: A: Alkyl phthalimide compounds (N-butyl phthalimide: isopropyl phthalimide = 3:1), B: Nong emulsion 8206 , C: castor oil polyoxyethylene ether sulfonate: EL-60 sodium sulfonate, D: alkylphenol polyoxyethylene ether: TX-40; the mixing temperature of Examples 11-15 was 50°C.

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Abstract

The invention discloses an environment-friendly terylen low-temperature dyeing auxiliary agent taking alkyl phthalimide as a carrier and a preparation method thereof. The compositions in percentage by weight of the dyeing auxiliary agent are: 70 to 90 percent of alkyl phthalimide compound, 8 to 15 percent of concentrated emulsion 8206, 1 to 7.5 percent of castor oil polyoxyethylene ether sulphonated matter and 1 to 7.5 percent of alkyl phenol polyoxyethylene ether, wherein the alkyl phthalimide is takes as the carrier; and the concentrated emulsion 8206, the castor oil polyoxyethylene ether sulphonated matter and the alkyl phenol polyoxyethylene ether are takes as an emulsifying agent. The environment-friendly terylen low-temperature dyeing auxiliary agent is used in low-temperature dyeing of terylen and terylen-containing textile fabrics; moreover, the dyeing auxiliary agent not only has the characteristics of nontoxicity, tastelessness, environmental protection and low cost, etc., but also has the advantages of high dye uptake, excellent level dyeing property, high dyeing fastness and wide application range, etc., thereby meeting the requirements of low-temperature dyeing production of terylen-containing textile fabrics.

Description

technical field [0001] The invention relates to a low-temperature dyeing auxiliary for polyester and a preparation method thereof, in particular to an environment-friendly low-temperature dyeing auxiliary for polyester with an alkyl phthalimide as a carrier and a preparation method thereof. Background technique [0002] Polyester fiber has high crystallinity, high degree of orientation, and compact structure. Under standard conditions (20°C, relative humidity 65%), the moisture regain is only 0.4%, and the hygroscopic swelling is small during dyeing. It is difficult for macromolecules to diffuse into the fiber, so it is difficult to dye and the dyeing performance is poor. At present, polyester dyeing generally adopts three methods: first, high temperature and high pressure dyeing method, which requires high equipment, long dyeing time and high energy consumption. The second, hot-melt dyeing method, this method consumes a lot of energy, and the product feels unsatisfactory a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/613D06P3/54D06P3/82
Inventor 吴明华陈金辉董建朋
Owner ZHEJIANG SCI-TECH UNIV
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