Patent ID: 6846376
Filing Date: 2005-01-25
Classification: B32B,Y10T

Abstract:
1. A process of making an elastic composite sheet, said process comprising the steps of: feeding an inelastic web and an elastic web placed one upon another together into a nip of first and second rolls opposed to each other, wherein: engaging said ridges with said grooves with spaces left between surfaces of said ridges and said grooves to form on a surface of said inelastic web a plurality of crests extending in one direction and a plurality of flat troughs each being located between one pair of the adjacent crests; and bonding said inelastic web along said troughs to said elastic web; wherein said elastic web is fed directly into said nip without being pre-stretched; and in said engaging step, an inner surface of each of the grooves in the nip is physically spaced from both said webs.