Paper forming mold, mold manufacturing method, and paper manufactured by forming mold
US12006629B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2020 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Dec 22, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper forming mold, comprising a roller (1). A number of through micropores are formed on a wall of the roller (1), and one or more patterns and characters of a normal watermark, a white watermark, a windowed security thread, and a paper marker are carved on the wall of the roller (1). The paper forming mold has a high reproducibility for an original watermark design draft, improves consistency, clarity, three-dimensionality, detail refinement and richness of the watermark in paper, and thus enhances the anti-counterfeiting function of the watermarked paper; the service life of the paper forming mold is prolonged; and the automation level of paper forming mold manufacturing is improved, and the labor intensity is greatly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.