Method of manufacturing a fabric having soil-release properties, particularly forming fabrics used in papermaking machines and cellulose machines, and filter cloths used in the papermaking and cellulose industries and related industries
US4396389A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1982 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Feb 22, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2279
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of improving the soil-repellant properties of fabrics such as forming fabrics used in papermaking and cellulose machines, and filter cloths used in pa;permaking and cellulose industries and related industries. The improvement in accordance with the invention is obtained in that the synthetic material from which these fabrics are manufactured, is given improved hydrophilic properties, which in turn is achieved in that the synthetic starting material, prior to being extruded, is mixed with polymers which are made up of monomers having hydrolizable side groups. The fabric manufactured from the synthetic material is treated in a manner known per se with strong bases and or/acids to hydrolize the side groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.