Salt-free low-alkali cellulose fiber modified dyeing method
A cellulose fiber and dyeing method technology, applied in the direction of dyeing method, textiles and papermaking, etc., can solve the problems of inapplicability to large-scale production, high chromaticity of dyeing residue, difficult treatment of waste water, etc. The effect of not easy to spread and penetrate
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Embodiment 1
[0078] Cellulose fiber dyeing process:
[0079] A salt-free and low-alkali modified dyeing method for cellulose fibers, comprising the following process steps:
[0080] A. Cellulose fiber modification treatment
[0081] Put the cellulose fiber into the container, add water to the container, and then modify the cellulose fiber with two cationic modifiers, the small molecule quaternary ammonium salt cationic modifier and the high molecular quaternary ammonium salt cationic modifier , modified cellulose fibers are obtained after the modification treatment is completed; the small molecule quaternary ammonium salt cationic modifier is the epichlorohydrin parent derivative of the epoxy quaternary ammonium salt, and the high molecular quaternary ammonium salt cationic modified The agent is cationic starch;
[0082] B. Washing treatment
[0083] Washing the modified cellulose fibers obtained through the modification treatment in step A;
[0084] C. Dyeing
[0085] Putting the mod...
Embodiment 2
[0090] Cellulose fiber dyeing process:
[0091] A salt-free and low-alkali modified dyeing method for cellulose fibers, comprising the following process steps:
[0092] A. Cellulose fiber modification treatment
[0093]Put the cellulose fiber into the container, add water to the container, and then modify the cellulose fiber with two cationic modifiers, the small molecule quaternary ammonium salt cationic modifier and the high molecular quaternary ammonium salt cationic modifier , modified cellulose fibers are obtained after the modification treatment is completed; the small molecule quaternary ammonium salt cationic modifier is the epichlorohydrin parent derivative of the epoxy quaternary ammonium salt, and the high molecular quaternary ammonium salt cationic modified The agent is cationic starch;
[0094] B. Washing treatment
[0095] Washing the modified cellulose fibers obtained through the modification treatment in step A;
[0096] C. Dyeing
[0097] Putting the modi...
Embodiment 3
[0103] Small molecule quaternary ammonium salt cationic modifier of the present invention is the epichlorohydrin parent derivative of epoxy quaternary ammonium salt;
[0104] The polymer quaternary ammonium salt cationic modifier of the present invention is cationic starch.
[0105] Epichlorohydrin parent derivatives of epoxy quaternary ammonium salts:
[0106]
[0107] Cationic starch:
[0108]
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