Reactive navy to black dye composition and dye product thereof
US10954392B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 30, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2038 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/70
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A reactive navy to black dye composition comprises component A and component B, wherein component A is selected from one or more compounds of formula (I), component B is selected from one or more compounds of formula (II); D1 and D2 are each independently a group represented by the following formula (a) or (b) or (c); R1-R12 are each independently selected from the group consisting of H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy and sulfo; m, n=0-3, and every R3 is each independently selected from the group consisting of amino, sulfo, ureido, C1˜C4 alkanoylamino, C1˜C4 alkoxy and C1˜C4 alkyl, every R6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X1-X3 are each independently selected from the group consisting of H, C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 and —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group, p, q=1-3, and Y1˜Y5 are each independently selected from the group consisting of —CH═CH2, —C2H4OSO3H and —CH2CH2Cl. A reactive navy to black dye product comprising the dye composition, has the properties of good washing fastness, high degree of fixation and dye-uptake, good build-up, clear rem…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.