Coating process for coating die with laser position sensors
US6706315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process comprising: providing a moving substrate; applying at least one coating layer wherein the at least one coating Is a photoconductive material, an electrically insulating material, a hole transport material, an anti-curl material, or an adhesive material onto the moving substrate with a slot die coater equipped with at least one position sensor mounted on at least one end of the slot die coater, and for example, applying from one to about five coating layers on the substrate; sensing the position of the slot die coater relative to the moving substrate with at least one position sensor; and, when the position of the slot die coater relative to the moving substrate deviates from a set of predetermined coordinates, iteratively adjusting the position of the die coater relative to the surface of the substrate to return to the set of predetermined coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.