FIELD: textile.
SUBSTANCE: invention relates to textile industry, in particular to dye-finishing, and concerns method of polyurethane fibres dyeing. Fibre is treated with sodium nitrite solution with hydrochloric acid at room temperature for 30 minutes, then washed and treated with an alkaline azotol solution at room temperature for 10-30 minutes with subsequent washing.
EFFECT: invention provides stable dyeing of polyurethane fibres, not requiring high temperature.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DYEING AROMATIC POLYAMIDE FIBERS | 1992 |
|
RU2010896C1 |
| METHOD OF DYEING SYNTHETIC FIBRE | 2010 |
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| COMPOSITION TO DYE TEXTILE MATERIALS FROM POLYESTER FIBRES | 2010 |
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RU2429321C1 |
| METHOD OF DYING ARAMID FIBRE | 2007 |
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RU2362851C1 |
| 0 |
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SU113010A1 | |
| ONE-STEP METHOD OF DYEING POLYURETHANE FIBRES | 2017 |
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RU2657219C1 |
| COMPOSITION FOR DYEING HEAT RESISTANT CLOTH | 2012 |
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RU2494181C1 |
| METHOD OF DYEING AND FINISHING OF THERMO-, FIRE-RESISTANT ARAMID TEXTILE MATERIALS | 2016 |
|
RU2641471C2 |
| METHOD FOR DYING ARAMIDE FIBER | 2020 |
|
RU2744118C1 |
| DYES BASED ON 3,5-DINITROANILINE AND 2-AMINO-4,6-DINITROTOLUENE | 2004 |
|
RU2273652C1 |
