Textile Grade CMC
Sodium Carboxymethyl Cellulose CMC is widely used in printing and dyeing,it has higher cost performance compared with sodium alginate. With a higher degree of substitution, Sodium Carboxymethyl Cellulose CMC can replace most sodium alginate. Sodium CMC can act as the sizing agent for the warp sizing of fabrics including cotton, gloria, chemical fiber and blend.
Specification for Textile grade CMC:
Item | Degree of Substitution | Viscosity Brookfield 1% mpas | Purity % | PH | Moisture |
IH-13 | ≥1.2 | 1000~1200 | ≥95 | 6.5~8.5 | ≤ 10 |
IH-15 | ≥1.5 | 800-1000 | ≥90 | 6.5~8.5 | ≤ 10 |
IH18 | ≥1.8 | 600-800 | ≥90 | 6.5~8.5 | ≤ 10 |
PAC-2000 | ≥1.0 | ≥2000 | ≥95 | 6.5~8.5 | ≤ 10 |
The print paste of rayon fiber usually contains cleaning solvent with high boiling point, dye, water and enough thickening agents. Sodium CMC is the thickening agent as well as the emulsifying agent, so it helps to uniformly mix the dye with high boiling point cleaning solvent with as well as to stabilize the dye suspension and thus to prevent the occurrence of sedimentation and the formation of foam in storage.
As printing thickener, Sodium CMC has the following features in the products.
1). Excellent viscosity stability;
2). Good distribution uniformity of DS (degree of substitution);
3). Good fluidity of solution in the color paste system;
4). Higher washable performance in the washing process after printing and dyeing.
