Apparatus and method for dyeing sheet articles
US4763370A · kind A · utility
1Cited by
18References
26Claims
0Family size
Inventors
Key dates
| Filing date | May 30, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | May 30, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B3/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for dyeing leather has an application roller and a backup device defining a gap therebetween. The application roller has recesses, and dye is supplied to it to fill the recesses. Sheet articles, e.g. leather pieces, are fed through the gap. The apparatus is operated so that a uniform coating of dye is continuously spread over one surface of the article by the application roller. The dye can have a low viscosity comparable to that of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.