Paper coating test method and composition
US6508956B1 · kind B1 · utility
1Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jul 25, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/44
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a test fluid for detecting coating flaws in a coated web and a method for testing a web coating system. The test fluid includes, water, a polyol, a surfactant, a radiant energy activated tracer compound and an organic solvent selected from the group consisting of an alkylene glycol and a dialkylene glycol. The test fluid is used to identify deficiencies in the web coating system so that adjustments to the web coating system may be made before assembling the coating system in an ink jet printer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.