Dyeing of Grafted Polyester Fiber Part I. Effect of Polyvinylacetate Graft on Dyeing Characteristics

Abstract

Polyester fiber was grafted with polyvinylacetate (PVAc) using gamma radiation to different PVAc contents. Moisture regain decreased slightly from 0.38% to 0.34%; crystallinity index did not show any appreciable change due to grafting. These grafted polyester fibers were dyed with disperse dyes at 100°C and 130°C. It was observed that saturation dye uptake as well as rate of dyeing increased with PVAc content. The above phenomenon could be attributed to the increased affinity of the grafted fiber to the dyes investigated and the increase in diffusion coefficient due to the plasticization action of PVAc.

Effect of nanoclay type on dyeability of polyethylene terephthalate/clay nanocomposites

“…Researchers are concerned with the development and implementation of new techniques in order to fulfill improvement in dyeability of polyester. For this purpose, many great studies have been carried out including: physical methods (corona discharge, plasma, ozone‐gas, gamma, and microwave functionalizations)26–36; chemical methods (enzymatic modification treatment with different reagents, grafting of different monomers, dyeing in supercritical carbon dioxide, and micro‐encapsulation techniques),37–49 and blending of PET with different compounds in fiber production to enhance dyeability 50–57. However, some of these methods often damage the otherwise excellent mechanical and bulk properties of PET fibers and make stable production thereof difficult.…”

Properties Improvement on Polyester Fabric Using Polyvinyl Alcohol

“…Polyester fabrics can provide specific advantages over natural fabrics, such as improved wrinkle resistance, durability and high color retention). As a result, polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties Campbell, IM 2000, Dave, J, Kumar, R, & Srivastava, HC 1987, Faterpekar, SA, & Potnis, SP 1981 One of the earliest and most widely accepted method is treatment of PET fabric with sodium hydroxide. It is least expensive method of surface treatment.…”