FIELD: textile.
SUBSTANCE: invention relates to textile industry, in particular to dye-finishing production, and is a method of dyeing aramide fibres. Task set is achieved by a single-step dyeing method of aramid fibres without organic solvents, consisting in that the fibre is treated in an aqueous solution of aromatic aldehyde with addition of hydrochloric acid at temperature of 100 °C for 60–70 minutes, with the following ratio of components, % of fibre weight: aromatic aldehyde 1–5, hydrochloric acid 1–5, and then washed with cold running water.
EFFECT: technical problem, solution of which is the declared invention, is expansion of products range from aramide fibres, ecological compatibility and reduction of technological process of dyeing.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ONE-STEP METHOD OF DYEING POLYURETHANE FIBRES | 2017 |
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RU2657219C1 |
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SU717193A1 |
| COMPOSITION FOR DYEING OF ARAMIDIC FIBER MATERIALS | 2003 |
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RU2238356C1 |
| METHOD OF COLD DYEING WITH INSOLUBLE AZO COLOURANTS OF FIBROUS MATERIALS | 2011 |
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RU2462544C1 |
