Application of Sodium Carboxymethyl Cellulose in Sublimation Paper
Release time:
2025-12-26
Sodium carboxymethyl cellulose (CMC) plays a key role in the coating of sublimation transfer paper, acting as a film-forming, dispersing, and stabilizing agent, directly affecting the ink absorption, coating uniformity, and transfer effect.
Sodium carboxymethyl cellulose (CMC) plays a key role in the coating of sublimation transfer paper, acting as a film-forming, dispersing, and stabilizing agent, directly affecting the ink absorption, coating uniformity, and transfer effect.
The core functions of CMC in the coating include: acting as a binder to combine with pigments such as silica to form a SiO₂/CMC composite coating. Its strong hydrophilicity adapts to water-based inks, improving ink absorption and drying speed; simultaneously, it improves the rheological properties of the coating, enhances water retention, reduces coating porosity, and ensures uniform dye release during high-temperature transfer.
In terms of process optimization, the viscosity and degree of substitution of CMC affect coating performance. For example, CMC/cationic starch blends can adjust surface properties; furthermore, nanocellulose, such as cellulose nanocrystals, can synergistically disperse SiO₂ particles with CMC, inhibiting agglomeration and further optimizing coating density. The advantages of CMC are as follows: CMC improves the adaptability of transfer paper to fabrics such as polyester fibers, enhances pattern adhesion, and improves color vibrancy, washability, and abrasion resistance, making it suitable for high-resolution pattern transfer needs in textiles, advertising signage, and other fields
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