Multilayered color compositions and associated methods
US7148182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Dec 22, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41M5/465
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A layered image-forming composite can include a substrate having a background color layer and a color-forming layer applied thereon. The color-forming layer includes a leuco dye that can be developed upon exposure to energy to produce a developed color. The background layer and the color-forming layer can each contribute to the overall appearance of the composite either before and/or after development of the leuco dye. In one aspect, the color-forming layer can have a thickness sufficiently thin to allow a portion of the fixed background color to be visible through a developed portion of the color-forming layer. Optionally, the color-forming layer can be applied in a filter pattern, e.g., halftone, moiré, stochastic, etc. in order to provide unique visual effects to the layered composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.