FIELD: process or apparatus for producing yarns or threads.
SUBSTANCE: fireproof yarn comprises fireproof polyether fiber or the mixture of, in mass %, 30-100 of the fireproof polyether fiber with 0-70 of the other fireproof fibers. The linear density of the yarn is 18.5-50 tex. The linear density of the fire-proof fibers is 0.13-0.15 tex or 0.2-0.3 tex.
EFFECT: improved refractoriness.
1 tbl
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