Increased pile density composite elastic material
US5624729A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Feb 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23993
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a lanate composite elastic material made by a method including the steps of applying a tensioning force to elongate at least one pressure sensitive elastomer adhesive sheet; inserting substantially individualized fibrous materials into the elastic sheet by mechanical needling the elastomer sheet while it is maintained in an elongated condition; and releasing the tensioning force so the attached fibrous materials are positioned closer together by the recovery of the elastic sheet. The resulting lanate composite elastic material has stretch and recovery properties, bulk, and desirable insulation properties. One or more layers of the lanate composite material may be combined with other layers of material to create a multi-layer structure. Also disclosed is a method of making in increased pile density composite elastic material including the step inserting substantially individualized fibrous materials into an elongated pressure sensitive elastomer adhesive sheet by stitchbonding, malipole stitchbonding, or tufting or adhering substantially individualized fibrous materials to the elongated elastomer sheet by flocking techniques. The density of attached fibrous materials in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.