Method of print dyeing textile materials
US4188216A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Apr 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0037
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for preparation of the final film used for engraving a flat screen, belt screen or rotary screen for a printing machine. The final film is prepared from a photograph of the image to be reproduced and engraved by known techniques on a screen so as to provide a continuous repetitive pattern on the face of a pile fabric dyed in a continuous print dyeing process. Select areas of photographic images are montaged and put into a repeat pattern within a predetermined outline to establish the basic repeat. Four continuous tone color separations are made of the selected pattern to provide yellow, blue, red and black continuous tone negatives which represent the four colors of the original image. Each color separation is posterized and half toned to provide eight positive films. The films are selectively combined, blown up to the desired repeat size to provide a negative or positive which is used to prepare a flat bed screen or rotary screen for an otherwise conventional printing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.