Abstract:

The subjects in this study were high-substituted hydroxypropyl cellulose (H-HPC) and carboxymethyl cellulose (CMC) used as the thickeners in the textile transfer printing. The rheology of H-HPC, CMC and the compatibility of H-HPC/CMC blend solution under the different conditions were investigated using the methods of steady-shear and frequency sweep, meanwhile, the micro-morphology of H-HPC, CMC and paste films were observed using optical and atomic force microscopes. Results show that: CMC has a higher structural viscosity and exhibits more obvious pseudo-plastic characteristic and thixotropy; the two thickeners both display an increasing elasticity and a decreasing viscous with the promotion of solid content; acidic, weakly alkali and urea have little influence on the apparent viscosity and viscoelasticity of H-HPC/CMC blend solution; the distribution of H-HPC and CMC in the paste film is uniform and the surface of the paste film is flat when drying at over 80℃.