Elastic tape with ravel resistant edge and method of knitting
US4009597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1975 |
| Grant date | Mar 1, 1977 |
| Priority date | — |
| Expiry date | Dec 24, 1995 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2403/0311
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Multiple wale lapping stitch loop chains are knit of additional yarn and extend over at least a pair of adjacent wales along at least one selvage edge of the elastic tape to prevent ravelling of the edge of the tape. The knitted elastic tape also includes a plurality of stitch loop chains knit of stretchable yarn and forming adjacent wales extending longitudinally of the tape and successive courses extending from one side of the tape to the other. An elastomeric yarn is inlaid in and extends along selected ones of the plurality of stitch loop chains and filling yarn extends back and forth across the tape so that the tape is stretchable in the lengthwise direction but substantially unstretchable in the widthwise direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.