The application of CMC in textile industry is mainly used as textile sizing and printing paste.
1. CMC is used as textile sizing. Because CMC has stable characteristics and good film-forming properties, it has a high affinity with cellulose yarn and makes the film have high strength, reducing "yarn skipping" and "broken ends" on high-speed looms. "Phenomenon. The size film formed by CMC is water-soluble and has the characteristics of biodegradation. As a fabric finishing agent, it can replace the traditional starch size and greatly reduce the environmental pollution caused by fabric resizing and desizing.
2. CMC is used as a printing paste, mainly as a thickener, emulsifier and suspending agent. CMC for printing and dyeing is not easy to react with reactive dyes; good paste rate, relatively stable storage; high structural viscosity, good water holding capacity, suitable for rotary screen, flat screen and hand printing; refined CMC has a high degree of water-soluble solution gel , high transparency, excellent mesh penetration and suction filtration performance, stable viscosity, can enhance the hydrophilic ability and penetration ability of dyes, thereby improving the clarity of printing and pigment fixation. It has good rheology and is more suitable for fine pattern printing of hydrophilic fiber textiles than sodium alginate. The actual printing effect is comparable to the latter. It can replace sodium alginate or be used in printing paste in combination with it. Achieve good economic benefits.