FIELD: chemistry; textile.
SUBSTANCE: invention relates to dyed aramid yarn and method of its production. Disclosed is a dyed aramid yarn produced by mixed spinning of a spinning solution comprising: a masterbatch spinning solution, comprising a pigment and a spin dope of meta-aramid obtained by polymerisation of m-phenylenediamine (MPD) and isophthaloyl chloride (IPC); and a meta-aramid spin dope, wherein the masterbatch spin dope contains 0.1 wt.% to 10 wt.% pigment. Invention covers also the method of its manufacturing.
EFFECT: disclosed dyed aramid yarn has less colour deviation and excellent light fastness owing to uniform dispersion of the pigment.
10 cl, 1 dwg, 2 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CONTINUOUS PROCESS FOR PROCESSING | 2020 |
|
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|
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