CN102677490A - Printing and dyeing color fixing agent and preparation method thereof - Google Patents

Abstract

The invention discloses a printing and dyeing color fixing agent and a preparation method thereof. The printing and dyeing color fixing agent is prepared from the following components in percentage by mass: 84 to 86 parts of dicyandiamide, 145 to 150 parts of triethylenetetramine, 0.1 to 0.2 part of acetic acid and 50 to 200 parts of water. The printing and dyeing color fixing agent prepared by the preparation method disclosed by the invention is stable to store and has no special odor; when the printing and dyeing color fixing agent is contacted with the skin, the dermatitis cannot be generated; the light fastness and the wet ironing fastness of a reactive dye can be obviously improved by the printing and dyeing color fixing agent; and the light fastness and the white cloth staining wet fastness of a direct dye can be obviously improved by the printing and dyeing color fixing agent.

Description

A kind of printing and dyeing color-fixing agent and preparation method thereof

Technical field

The invention belongs to field of fine chemical, relate to a kind of color-fixing agent, be specifically related to a kind of printing and dyeing color-fixing agent.

Background technology

Dyestuff various in style, complex structure, all there is shortcoming in various degree in the various dyestuffs that use in textile industry at present.Lack dark kind like REACTIVE DYES, facile hydrolysis, it is poor to cause, wet ironing low to the look rate to scald fastness, easyly fade, phenomenon such as look change, direct dyes after printing and dyeing processing, product washing fugitive color, wet fastness is poor.

Summary of the invention

Goal of the invention: the present invention provides a kind of printing and dyeing color-fixing agent of a kind of stable storage, no off-odor and preparation method thereof in order to solve the deficiency of prior art.

Technical scheme: a kind of printing and dyeing color-fixing agent, formulated with dicyandiamide, triethylene tetramine, acetate, water, the mass percent of said each component of printing and dyeing color-fixing agent is:

A kind of preparation method of the color-fixing agent of printing and dyeing, the preparation process of said printing and dyeing color-fixing agent comprises:

(1) takes into account and add triethylene tetramine 145-150 part in the reactor of agitator in that reflux condenser, temperature are housed, constantly stirring adding dicyandiamide 84-86 part down, and slowly be warming up to 90-100 ℃;

(2) reaction slowly rose to 150-160 ℃ with temperature after 1.5-2 hour, and the interior liquid of reactor this moment becomes sticky thick gradually, continues insulation reaction 3-4 hour again, makes polycondensation reaction complete;

(3) the suitable back that lowers the temperature slowly adds acetic acid solution 0.1-0.2 part, and under 80-90 ℃ of maintenance temperature, slowly stirring is all dissolved reactant;

(4) under agitation add entry 50-200 part, dilute the solution for 14-16%, the yellow solution of gained is the printing and dyeing color-fixing agent.

Beneficial effect: printing and dyeing color-fixing agent stable storage, the no off-odor of the present invention's preparation; Contacting skin can not produce dermatitis; Its light fastness, the boiling hot fastness of wet ironing can be obviously improved to REACTIVE DYES, its light fastness and the wet fastness of calico staining can be obviously improved direct dyes.

The specific embodiment

Embodiment 1

Take into account and add triethylene tetramine 145 grams in the reactor of agitator in that reflux condenser, temperature are housed, add dicyandiamide 84 down and restrain constantly stirring, and slowly be warming up to 90 ℃; React after 1.5 hours, temperature is slowly risen to 150 ℃, the interior liquid of reactor this moment becomes sticky thick gradually, continues insulation reaction again 3 hours, makes polycondensation reaction complete; Slowly add acetic acid solution 0.1 gram after suitably lowering the temperature, under 80 ℃ of maintenance temperature, slowly stirring is all dissolved reactant; Under agitation add entry dilution and be 14% solution, the yellow solution of gained is the printing and dyeing color-fixing agent.

Embodiment 2

Take into account and add triethylene tetramine 148 grams in the reactor of agitator in that reflux condenser, temperature are housed, add dicyandiamide 85 down and restrain constantly stirring, and slowly be warming up to 95 ℃; React after 1.5 hours, temperature is slowly risen to 155 ℃, the interior liquid of reactor this moment becomes sticky thick gradually, continues insulation reaction again 3.5 hours, makes polycondensation reaction complete; Slowly add acetic acid solution 0.1 gram after suitably lowering the temperature, under 85 ℃ of maintenance temperature, slowly stirring is all dissolved reactant; Under agitation add entry dilution and be 15% solution, the yellow solution of gained is the printing and dyeing color-fixing agent.

Embodiment 3

Take into account and add triethylene tetramine 150 grams in the reactor of agitator in that reflux condenser, temperature are housed, add dicyandiamide 86 down and restrain constantly stirring, and slowly be warming up to 95 ℃; React after 1.5 hours, temperature is slowly risen to 155 ℃, the interior liquid of reactor this moment becomes sticky thick gradually, continues insulation reaction again 4 hours, makes polycondensation reaction complete; Slowly add acetic acid solution 0.2 gram after suitably lowering the temperature, under 85 ℃ of maintenance temperature, slowly stirring is all dissolved reactant; Under agitation add entry dilution and be 15% solution, the yellow solution of gained is the printing and dyeing color-fixing agent.

Claims (2)

1. printing and dyeing color-fixing agent, formulated with dicyandiamide, triethylene tetramine, acetate, water, it is characterized in that: the mass percent of said each component of printing and dyeing color-fixing agent is:

。

2. according to the preparation method of the said a kind of color-fixing agent of printing and dyeing of claim 1, it is characterized in that: the preparation process of said printing and dyeing color-fixing agent comprises:

(1) takes into account and add triethylene tetramine 145-150 part in the reactor of agitator in that reflux condenser, temperature are housed, constantly stirring down 8486 parts of adding dicyandiamides, and slowly be warming up to 90-100 ℃;

(2) reaction slowly rose to 150-160 ℃ with temperature after 1.5-2 hour, and the interior liquid of reactor this moment becomes sticky thick gradually, continues insulation reaction again 34 hours, makes polycondensation reaction complete;

(3) the suitable back that lowers the temperature slowly adds acetic acid solution 0.1-0.2 part, and under 80-90 ℃ of maintenance temperature, slowly stirring is all dissolved reactant;

(4) under agitation add 50200 parts of entry, dilute the solution for 14-16%, the yellow solution of gained is the printing and dyeing color-fixing agent.