Coating of papermaking fabrics
US4172910A · kind A · utility
39Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1978 |
| Grant date | Oct 30, 1979 |
| Priority date | — |
| Expiry date | Mar 28, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B1/142
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating papermaking fabrics, in particular dryer fabrics, includes coating the back surface of the fabric with a thickened resin mixture. To reduce the air permeability of a woven dryer fabric, the fabric is impregnated with a thickened resin mixture to thereby close up a portion of the spaces between the woven yarns. By applying a thickened resin mixture having a viscosity of between 1,000 and 5,000 centipoise to the back surface of the dryer fabric, the fabric is impregnated in a single pass with a sufficient quantity of the mixture to thereby reduce the air permeability to the desirable level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.