Process Design of Multi Waterproof Functional Leather Based on TRIZ Theory
To improve the waterproof performance of leather,a multi-layer superimposed composite waterproof system including retanning,filling,fatliquoring,and surface waterproofing was integrated based on TRIZ theory and previous waterproof research.Waterproof functional leather with excellent dynamic and static waterproof performance was prepared,and characterized by FTIR,SEM,EDS,XPS,etc.The Experimental results show that the waterproof performance is excellent,with a static water absorption rate of less than 14 g/2h,dynamic waterproofing frequency exceeding 200000 times,and a water contact angle close to 130°.At the same time,the waterproof functional leather also has good coating performance,physical-mechanical properties,and sensory properties,which are improved compared to traditional leather.It provides a new approach for the production and application of waterproof functional leather.
leather engineeringcattle upper leatherwaterproof leatherwaterproof performanceTheory of Invention Problem Solving
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