公开(公告)号：CA1135916A

公开(公告)日：1982-11-23

申请号：CA335223

申请日：1979-09-06

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MIYOSHI ,  ASADA MIYOZO

IPC: D01D5/36

Abstract: 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, respectively. 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 member 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 downstream 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 upstream 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.

公开(公告)号：CA1135917A

公开(公告)日：1982-11-23

申请号：CA395514

申请日：1982-02-03

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MIYOSHI ,  ASADA MIYOZO

IPC: D01D5/36

Abstract: 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 off a first and second polymer chamber, respectively, from a second and third polymer chamber, respectively. 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 ends of each fourth polymer chamber an orifice. The third plate member further has bored therein one or more slits, each slit being, on the under surface of the third plate member, of a multi-arm shape having at least three radially extending arms, each of which intervenes between at least two holes of the holes bored in the third plate member. 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 downstream 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 having a length longer than that of the polymer passage downstream of the joining point but upstream of the succeeding joining point, if any. The assembly produces multi-ingredient multicore 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.

公开(公告)号：DE2936300A1

公开(公告)日：1981-04-09

申请号：DE2936300

申请日：1979-09-07

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MIYOSHI ,  ASADA MIYOZO

IPC: D01D4/02 ,  D01D5/30

公开(公告)号：IT7925542D0

公开(公告)日：1979-09-07

申请号：IT2554279

申请日：1979-09-07

Applicant: TORAY INDUSTRIES

Inventor： ASADA MIYOZO ,  OKAMOTO MIYOSHI

IPC: D01H20060101