Application of Chemicals to Substrates Without the Use of Liquids: Solid-on-Solid (SOS) Processing: Final Technical Report, August 1, 1984-July 31, 1986

摘要

Theoretically, the optimum method for applying chemicals to textiles is through deposition of powders, followed by dry thermal flow of a thermoplastic component. Bench-scale development has progressed rapidly in the first two years of the project for several SOS textile processes. Clear, well-defined color prints were achieved. A spun laced polyester nonwoven servicing the mattress pad cover market was successfully bound with two resins via powder spray gun deposition. Fluoropolymer (FP) powder finishing of a polypropylene (PP) nonwoven with the Nordson spray gun technology also proved feasible. Two main-component size candidates for ring-spun polyester/cotton yarns were evaluated: Carboset 525 (a complex acrylic, B.F. Goodrich) and Eastman WD (a modified polyester, Eastman Chemicals). Preliminary research was conducted to identify 100% solid liquid resin candidates for solid shade coloration of fabric. Blends of Lord Corporation's B3693-44 Photoglaze resin (a poly(urethane-acrylate)) with Sartomer's polyethylene glycol 200 dimethracrylate yielded uv-cureable films that had sought visual and qualitative properties. (ERA citation 12:047670)