Dyeing or printing of manufactured natural polymer and synthetic hydrophobic fiber materials
US6893472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Feb 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/922
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a process for dyeing or printing manufactured natural polymer or synthetic hydrophobic fiber materials, characterized in that it comprises using dyes of the formula (I), where R1 is hydrogen, hydroxyl or a radical —NHCO—R6, where R6 is C1-C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R2 is hydrogen, hydroxyl or a radical W—R7, where W is —NHCO— or —S— and R7 is C1C6alkyl or unsubstituted or C1-C4alkyl- or halogen-substituted phenyl, R3 is hydrogen, R4 is hydrogen or hydroxyl, R5 is hydrogen, halogen, methoxy, phenoxy or phenylthio, or R3 and R4 combine to form the radical of the formula (II), where the rings A and B may independently bear further substituents, to the use of these dyes for trichromatic dyeing of manufactured natural polymer or synthetic hydrophobic fiber materials and mass dyeing of plastics materials and to producing solid on-tone combinations of plastics material and manufactured natural polymer or synthetic fiber material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.