A kind of Dyeing with Disperse/Reactive one for polyester-cotton fabric bathes two step exhaust dyeing methods

A kind of Dyeing with Disperse/Reactive one for polyester-cotton fabric bathes two step exhaust dyeing methods

  • CN 103,541,247 B
  • Filed: 09/27/2013
  • Issued: 11/14/2017
  • Est. Priority Date: 09/27/2013
  • Status: Active Grant
First Claim
Patent Images

1. a kind of Dyeing with Disperse/Reactive one for polyester-cotton fabric bathes two step exhaust dyeing methods, it is characterised in that:

  • Methods describedComprise the following steps:

    (1) cotton is contaminated:

    In bath raio 1;

    5-1;

    10 or 1;

    12-1;

    20, under the conditions of 30-50 DEG C of temperature, add fabric weight 0.5-2.4%Or 4-10% reactive dye, run 5~8min, add dyeing assistant, the dosage of the dyeing assistant for 20-30g/L or80-100g/L, alkaline agent being added after running 10~15min, the dosage of the alkaline agent is 1g/L or 2.5-5g/L, rerun 10~15min, then heat to 80~90 DEG C, the heating rate of the temperature-rise period is 2~2.5 DEG C/min, then be incubated 40~60min;

    (2) dye is washed:

    Sour agent regulation system pH=4.5-5.5 is directly added into after the completion of dye cotton, then adds fabric weight 0.1-8%Disperse dyes, run 5~8min, then heat to 135~140 DEG C, the heating rate of temperature-rise period is 1~1.5 DEG C/min,Then 30-50min is incubated, completes dyeing;

    (3) post-process:

    After 50~60 DEG C are cooled to after the completion of dyeing, post-processed, the post processing is followed successively by just washing, soapWash, wash afterwards, it is 20-25 DEG C just to wash water temperature, and first washing time is 5-15min;

    Soap and use acid scouring agent, temperature of soapingFor 95-100 DEG C, the time of soaping is 5-15min;

    Washing temperature is 20-25 DEG C afterwards, and rear washing time is 5-15min;

    The reactive dye are β

    -ethene sulfuryl active group type dye as shown in general structure (I) or the activity by its compoundingDyestuff,D-(B-SO2CH=CH2)n(I)In formula (1), D is reactive dye parent body, and B is abutment, and n is 1 or 2 or 3;

    The reactive dye parent body D is azo, anthraquinoneClass or other class formations;

    The abutment B is connection active group and reactive dye parent body D abutment, the abutment B be-NH- ,-NHCO- or-SO2- isolation group;

    The reactive dye by β

    -ethene sulfuryl active group type dye compounding include active black L-ED, reactive blue 250, active red RR2 or active yellow EDA;

    Described dyeing assistant is glauber salt, and alkaline agent is soda ash, and sour agent is acetic acid, the dosage of glauber salt, soda ash and sour agent acetic acidDetermined according to dye level target, it is specific as follows:

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