| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide quality and workability equal to those of a conventional cellular cushioning material based on polyethylene or the like and to also provide excellent decomposability by using a decomposable resin having a specific molecular structure as a material. SOLUTION: A flat back film 3 is laminated to a cap film having a large number of projections to form a cellular cushioning material 1. A three-layered cellular cushioning material 1 wherein flat films are laminated to both surfaces of the cap film 2 may be formed in place of the two-layered cellular cushioning material 1. The material qaulity of a decomposable resin is represented by formula I (wherein Z1 is a polysaccharide skeleton, R1 is a hydrocarbon group which may have an acyl group, R2 is an alkylene group, n is the total number of hydroxyl groups in the polysaccharide skeleton, m is 1 or more and smaller than n, p is 1 or more or smaller than n, q is 1 or more, m+p is smaller than n and m/nha is 0.01-0.99).</p> |
