Method for treating paper to improve the holdout characteristics of printing inks
US4867844A · kind A · utility
21Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jan 28, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/5227
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for treating paper or other fibrous materials to improve the holdout characteristics of printing inks, lacquers and coating compositions. The method involves the application of an organophilic complex of PA1 (a) a water-insoluble hydrated cation-exchangeable film-forming smectitic layered silicate having an ion exchange capacity of at least 50 milliequivalents/100 g and PA1 (b) an organic radical derived from an onium compound attached thereto. The organophilic complex forms a barrier layer by reaction with the organic solvent contained in the printing ink, lacquer or other coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.