Fluorosilicone modified polyacrylate/pigment hybrid latex: Synthesis, properties, and application in binder‐free pigment printing of polyester fabrics

Abstract

AbstractPigment printing of textiles is a kind of environmentally friendly technique of saving water and energy, and emission reduction. Fluorosilicone modified polyacrylate/pigment (FSi‐PAcr/PB) hybrid latex was successfully synthesized via a one‐step in situ miniemulsion with subsequent free‐radical polymerization and cationic ring‐opening polymer process, which further improve the hand feeling, permeability, and water‐resistance of the pigment printed polyester fabrics. These FSi‐PAcr/PB hybrid latex particles were used as the binder‐free hybrid pigment in the pigment printing of polyester fabrics. The effects of the weight ratio of 3,5‐tris(3,3,3‐trifluoropropyl)‐1,3,5‐trimethylcyclotrisiloxane (D3F) and octamethyl cyclotetrasiloxane (D4) on the thermal properties and hydrophobicity of hybrid latex films were studied. The color yield, colorfastness, hand feeling, permeability, and water resistance properties of the binder‐free printed polyester fabrics were tested and compared. The results showed that theFSi‐PAcr/PB hybrid latex films exhibited higher hydrophobicity and lower glass transition temperature (Tg), in comparison with the control system (without fluorosilicone). The printed fabrics with FSi‐PAcr/PB showed a lower stiffness and softer hand feeling, good air permeability, and excellent rubbing fastness compared with the control system. It was considered that the introduction of the fluorosilicone composition into the polyacrylate was prone to shift onto the surface film and coated with a layer of latex film to the surface of the single fiber, retaining the majority of the gaps between fibers.