NET-LIKE STRUCTURE EXCELLENT IN COMPRESSION DURABILITY

摘要

PROBLEM TO BE SOLVED: To provide a net-like structure that has a small repeated compression residual strain and a large retention of hardness after repeated compression, and is excellent in repeated compression durability.SOLUTION: The net-like structure is a three-dimensional random loop joint structure which is made by winding a continuous linear body that is made of a polyolefin-based thermoplastic elastomer and has a fineness of 100 dtex or more and 60000 dtex or less to form random loops and contacting respective loops with each other in a melted state. The apparent density is 0.005 g/cm-0.20 g/cm. The 50% constant-displacement position repeated compression residual strain is equal to or less than 15%. The retention of hardness upon 50% compression after a 50% constant-displacement position repeated compression is equal to or more than 85%.