将废弃胶原蛋白引入到经过甲苯减量的海岛型超细纤维非织造材料体系中，然后对其进行乙烯基胶原蛋白浸渍工艺研究，使得具有碳碳双键的改性胶原蛋白在PA超细纤维非织造材料中成膜，从而替代现行工艺中的聚氨酯成膜工艺。结果表明，制备所得的胶原蛋白/聚酰胺纤维非织造材料的视密度、均匀度、吸湿性、透湿性和抗张强度均增加；吸湿性和透湿性均优于传统工艺制造的PA/PU基材；加脂处理后基材的柔软度也得到了明显的提升。最终构建出的胶原蛋白/超细纤维非织造复合基材吸湿透湿性良好，柔软性、弹性较优，力学性能与传统PA/PU基材相比也相差不大。

Spent collagen is added into a toluene-reduced sea-island microfiber nonwoven material system.The vinyl collagen impregnation process is then investigated to enable the modified collagen with a carbon-carbon double bond to form film in polyamide (PA) microfiber nonwoven material, thus replacing the polyurethane film formation process in the current process.It is found that the prepared collagen/polyamide fiber nonwoven materials present improvements in apparent density, uniformity, moisture absorption, moisture permeability and tensile strength.Both moisture absorption and moisture permeability of the materials are superior to PA/PU substrates made by traditional process.The softness of the substrate is also significantly improved after being treated by adding lipid.Final collagen/microfiber nonwoven composite substrate constructed in this study has good moisture absorption and permeability, superior softness and elasticity, and its mechanical properties can be comparable to those of conventional PA/PU substrates.