Method and compositions for treating fibrous cellulosic materials
US5873909A · kind A · utility
6Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1998 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Apr 7, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/138
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The application of a treating solution containing polyhydroxy compound and choline chloride to a fibrous cellulosic material is made more uniform and reproducible by including in the treating solution a colorizing amount of a fugitive tint, by which the uniformity of the application can be observed and corrected by appropriate changes to the operating variables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.