Fundamental studies on solvent dyeing with tetrachloroethylene. I. Diffusion of disperse dyes in poly(ethylene terephthalate)

Abstract

SynopsisThe diffusion of C.I. Disperse Violet 1 and Violet 8 in poly(ethy1ene terephthalate) (PET) WBB investigated by the method of cylindrical film roll. The effect of tetrachloroethylene (TCE) on the properties of PET was also studied. The treatment of PET with TCE brought about a strong effect on the thermal properties without degradation of PET. The diffusion of disperse dyes in PET from the TCE dyebath was faster than that from the aqueous dyebath. The activation energies of diffusion in the temperature range of 60' to 95OC from the TCE dyebath were smaller than those from the aqueous dyebath. Some break points were observed in the Arrhenius plots of diffusion coefficients in PET from the TCE dyebath. They were lower than those observed a t dry and water-swollen states.

Effect of acetonitrile pretreatment on the physicochemical behavior of 100% polyester fabric

“…The T g of the treated material was found to decrease. A similar decreasing trend in T g as a consequence of solvent treatments was previously reported by many researchers 13–17…”

“…A similar decreasing trend in T g as a consequence of solvent treatments was previously reported by many researchers. [13][14][15][16][17]…”

Textile applications of photochromic dyes. Part 5: application of commercial photochromic dyes to polyester fabric by a solvent‐based dyeing method

“…There are some advantages, compared with water, associated with the use of organic solvents in the dyeing of polyester with disperse dyes, including the high solubility of the dyes in many cases, the ability of these solvents to penetrate more readily into the hydrophobic structure of polyester, the lower energy required to heat some organic solvents to their boiling point and the enhanced possibility of successful dyeing at relatively low temperatures. Solvent dyeing of textiles has been extensively investigated, especially in the 1970s and 1980s . The limited recent interest is probably attributable to increasing sensitivity towards the ecological and toxicological issues associated with those solvents that have proved appropriate for textile dyeing.…”

A novel green approach for dyeing polyester using glycerine based eutectic solvent as a dyeing medium

“…Further dyeing of pre-treated ammonified ramie fabric was done using liquid ammonia as dyeing medium to improve dyeing efficiency (Peng et al., 2017). Dyeing of polyester was done using disperse dye in tetrachloroethylene by using cylindrical film roll method (Morita et al., 1975). Exhaust dyeing of polyester fabric was carried out in perchloroethylene with different auxiliaries at 120 °C for 30 minutes (Gebert, 1971).…”