Knit fastener loop products
US11767619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Jun 29, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2501/0632
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making a loop fastener product features knitting, such as by circular knitting, a pile yarn and one or more ground yarns to form a stretchable knit fabric having loops of the pile yarn extending from a knit ground, with the ground yarns including polymers of differing melt temperatures. The knit fabric is then held in a desired state while the fabric is set by first applying sufficient heat to cause the lower melt temperature resin to flow into interstices of the fabric ground, and then allowing the fabric to cool. The cooled fabric ground is less stretchable in two orthogonal directions after setting than before setting, has a greater air permeability after setting than before setting, and has hook-engageable pile loops extending from bound interstices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.