Salt-free low-alkali cellulose fiber modified dyeing method

Salt-free low-alkali cellulose fiber modified dyeing method

  • CN 104,480,753 A
  • Filed: 11/26/2014
  • Published: 04/01/2015
  • Est. Priority Date: 11/26/2014
  • Status: Active Application
First Claim
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1. a salt-free low alkali modification colouring method for cellulose fibre, is characterized in that:

  • comprise following processing step;

    A, cellulose CSP processCellulose fibre is put into container, add water in container again, then with small molecule quaternary ammonium salt cation modifier and high molecular quaternary cation modifier two kinds of cation modifiers, modification is carried out to cellulose fibre, after modification completes, obtain modified cellulose fibre;

    Described small molecule quaternary ammonium salt cation modifier is the chloropropylene oxide parent derivative of epoxy quaternary ammonium salt, and described high molecular quaternary cation modifier is cationic starch;

    B, washing processThe modified cellulose fibre obtained through modification in steps A is carried out washing process;

    C, dyeingPut into dyeing container by step B through the modified cellulose fibre of washing process, add dye liquor and dye, then heat up, complete dyeing after continuing dyeing a period of time, obtain dyeing, modifying cellulose fiber peacekeeping dyeing residual liquid;

    D, post processingThe dyeing, modifying cellulose fibre obtained by step C with water is cleaned, and then obtains finished product through oiling, drying.

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