Lightweight digital printing medium
US9920481B2 · kind B2 · utility
0Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A lightweight digital printing medium has a basis weight of less than 100 grams per square meter and includes a base paper. The base paper includes a fiber mixture of hardwood pulp and softwood pulp where at least 5% by weight of total fiber in the fiber mixture is bleached, chemi-thermo-mechanical pulp. An internal sizing agent for neutral or alkaline conditions and a wet-strength agent that is a thermosetting resin are mixed with the fiber mixture. An amount of the wet-strength agent added to the fiber mixture is at least 0.1% total dry weight of the base paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.