Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2022 / V.34,no.3,Sept Title A Study on the Effect of Primer Processing Method on the Mechanical Properties of Impact Relief Air Cushion Materials Prepared through Thermal Film Laminating Authors Ji Yeon Kim, Hun Min Kim, and Mun Hong Min Institution/Affiliations Korea Dyeing and Finishing Technology Institute Pages/Total page pp.173 ~ 184 / 12 Language Korean Abstract In this study, the TPU film was laminated on an aramid fabric or circular knits in order to implement an air cushion material that can respond to high impact forces in case of a fall and is easy to expand. To increase the bonding strength between the fabric layer and the film layer, a primer layer was formed in two ways: one for thermally bonding and laminating PET film and two for coating and aging hot melt type PUR adhesive. The tensile strength of the aramid air cushion was 2.5 times higher than that of the circular knits, but the tensile elongation of the aramid air cushion was very low compared to that of the circular knits. The tear strength of the aramid air cushion was about twice or more superior to that of the circular knits, the primer treatment method was good at A, and the peel strength was excellent at method A. The aramid air cushion was the lightest in weight. Summarizing the above results, it was best to combine the air cushion material with aramid woven fabric and primer treatment method A to cope with the high impact force applied when falling. Keywords thermoplastic polyurethane film, polyethylene terephthalate film, polyurethane reactive adhesive, aramid woven, lamination, strength, wearable air cushion Download   Reference http://koreascience.or.kr/journal/OSGGBT/v34n3.page