Flexibility enhancing coating for boxboard, particularly of carton joints and fold lines, and method of application
US4075372A · kind A · utility
3Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1975 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Apr 29, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24612
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improvement in enhancing the moisture attributes of boxboard and paperboard, a coating of a flexible film forming material is applied preferably by means of a printing roller to the surface of said boxboard before any moisture barrier lacquer is applied to the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.