Method for the production of a thermal fixing roller
US4789565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Oct 21, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2518/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to method for the production of a thermal fixing roller which comprises steps of applying a silicone rubber layer to the surface of a shaft, thereby forming a silicone rubber roller, applying a polytetrafluoroethylene coating to the surface of the silicone rubber roller by immersing the roller in a polytetrafluoroethylene dispersion and rotating the silicone rubber roller in a plane inclined with respect to a horizontal plane, removing the silicone rubber roller from the polytetrafluoroethylene resin dispersion, drying the coating on the outside of the silicone rubber roller at a temperature of at least 500.degree. C. for 10 to 120 seconds, preheating the coating from the inside of the silicone rubber roller, thereby elevating the temperature of the coating to a temperature which is less than that of the melting point of the polytetrafluoroethylene resin, and baking the coating to a temperature which is at least that of the melting point of the polytetrafluoroethylene resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.