| 摘要 |
1432093 Conjugate fibres TORAY INDUSTRIES Inc 26 Feb 1974 [26 Feb 1973 31 March 1973 6 April 1973] 8544/74 Heading B5B Conjugate fibres comprised of two or more different polymer materials are melt or wet spun by introducing the various polymers A and B, through separate inlets 2 and 3, into a space 4 adjacent to the spinning orifice 6 whilst imparting relative motion to the spinneret plate 5 and inlet plate 1 whereby the polymers A and B are layered horizontally, prior to extrusion so that the velocity gradients set up across the fibre during extrusion cause the interfaces to slope from a tip in the centre portion of the fibre, longitudinally back to the surface of the fibre, as shown in Fig. 16. The fibres may then be drawn and heat set. Preferably the polymeric materials are polyamide and polyester and one of the polymer feeds may itself be comprised of a mixture of other polymers, e.g. in side by side or islands in a sea arrangement. |
