Packaging material having good moisture barrier properties from C1S paperboard
US6245395A · kind A · utility
10Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The preparation of packaging material having good moisture barrier properties from a C1S paperboard substrate in a single pass on a printing press is improved by preheating the substrate before application of the moisture barrier coating to the uncoated surface of the substrate. Preheating the substrate improves coating holdout, reduces pinholes and permits the application of a thin film of coating to achieve the desired result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.