Methods of forming an artificial leather substrate from leather waste and products therefrom
US9822481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N3/0086
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Methods of making an artificial leather substrate from leather waste (e.g., shavings, such as wet blue, and/or pulverized trim scrap) and products formed using the artificial leather substrate are disclosed. In one example, the artificial leather substrate comprises a composite web comprising leather waste mixed with a lightweight web, a lightweight web atop the composite web, and another lightweight web atop the first lightweight web. A method of making the artificial leather substrate includes the steps of mixing one or more fiber components, leather shavings, and/or pulverized leather trim scrap to form the composite web; needle punching the composite web; and bonding the composite web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.