Textured synthetic yarns mfre
    6.
    发明专利

    公开(公告)号:DE2065751A1

    公开(公告)日:1975-07-31

    申请号:DE2065751

    申请日:1970-02-11

    Applicant: BASF AG

    Abstract: Mfe. of textured yarns from linear, high m.w. synthetic material, by passing them through canal shaped treatment zones in which they are subjected to the action of a stream of heated fluid, pref. a gas, with the improvement whereby the exposure to the turbulent stream of fluid is brought about between a feed inlet channel and a guide channel in which the yarns are heated to a temp. causing re-orientation processes, and are brought by the fluid stream via the guide channel and a sudden enlargement causing a drop in pressure, into and through a treatment zone of slightly tapering conical section where eddying of the fluid stream with the ambient air occurs, bringing about a shapr drop of temp., the length of the apertures as well as the distances between them and the guide channel being adjustable, with response amplification, so that a star-shaped compression of the yarns results automatically without plugging, with continuous movement in the zone of lowered temp., which has a stabilising effect.

    7.
    发明专利
    未知

    公开(公告)号:NL142463B

    公开(公告)日:1974-06-17

    申请号:NL6516517

    申请日:1965-12-17

    Applicant: BASF AG

    Abstract: 1,125,148. Crimpimg yarns. BADISCHE ANILIN & SODA FABRIK A.G. 23 Dec., 1965 [24 Dec., 1964], No. 54517/65. Heading D1F. In crimping a multifilament yarn of a thermoplastic high polymer e.g. a polyamide such as nylon 6, polyester or polypropylene, by the false-twist and heat-set method, the polymer contains 0.05-1% by weight of a nucleating agent e.g. a plastic material the melting point of which is higher than the yarn material, nylon 22, pigments in highly divided condition, magnesium oxide or dyes. The bulk effects are stated to be enhanced.

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