D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
18/582
D01D 5/30 (2006.01) D01D 5/24 (2006.01)
Patent
CA 1139068
ABSTRACT OF THE DISCLOSURE This invention provides a spinning process for producing a spun stream comprising a plurality of separate spun interfaces from a given single interface between different polymers in a supply stream. The given interface extends generally parallel to the direction of the supply stream, and the process is characterized by the steps of passing the supply stream through a spinneret orifice which is effectively in the form of an elongated slot. The cross-sectional shape of the orifice and the given interface are selected and located with respect to each other such that a first portion of the given interface passes through and extends transversely across the width of the slot at a first location along the length of the slot and a second portion of the given interface passes through and extends transversely across the width. of the slot at a second location along the length. of the slot. The spun stream issuing from the slot is then solidified. The process of this invention overcomes disadvantages involved in prior art processes which entail a considerable complexity in the conjugation plates prior to the spinneret itself; with the present invention, the conjugation plates upstream of the spinneret can be considerably simplified by appropriate design of the spinneret orifice.
348447
Bromley James E.
Yu Jing-Peir
Mcfadden Fincham
Solutia Inc.
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