D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
18/553
D01D 5/36 (2006.01)
Patent
CA 1135916
ABSTRACT OF THE DISCLOSURE This invention provides an improvement in a spinneret assembly. The assembly comprises superposed rigid, first, second, third and fourth plate members. The first and second plate members partition offf a first and second polymer chamber respectively, from a second and third polymer chamber, respec- tively. The third plate member partitions off the third polymer chamber from one or more funnel-shaped fourth polymer chambers bored in the fourth plate member. The third plate member has a plurality of holes which are exposed to each fourth polymer chamber. The fourth plate member has at the lowermost end of each fourth polymer chamber an orifice. Holes bored in the second plate member confront the holes of the third plate member, each pair of confronting holes being connected with each other by a pipe. The pipe extends in such manner that a narrow circular path is formed at least around one end portion of the pipe within the hole of the third or second plate member respectively, or within another pipe extending from the hole of the second or third plate mem- ber respectively, and the polymer passage formed within the pipe is connected through the narrow circular path to the third polymer chamber. The four plate members form a plurality of series of linked polymer passages, each series having at least one joining point at which two polymer streams join together. At least one of the polymer passages upstream of the joining point has at least one cross section that is narrower than any cross section of the polymer passage down- stream of the joining point but upstream of the succeeding joining point, if any, or said at least one polymer passage upstream of the joining point has a length longer than that of the polymer passage downstream of the joining point but up- stream of the succeeding joining point, if any. The assembly produces multi ingredient multi-core composite filaments each comprised of at least three polymer phases, and avoids defects in conventional assemblies which produce filaments which are not uniform in thickness and cross section and wherein the number of core polymer ingredients in each filament is limited, etc.
335223
Asada Miyozo
Okamoto Miyoshi
Mcfadden Fincham
Toray Industries Inc.
LandOfFree
Spinneret assembly for use in production of multi-ingredient... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spinneret assembly for use in production of multi-ingredient..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spinneret assembly for use in production of multi-ingredient... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-458564