GB2337480A - Crimped solid thermoplastic filaments - Google Patents

Crimped solid thermoplastic filaments

Info

Publication number
GB2337480A
GB2337480A GB9922045A GB9922045A GB2337480A GB 2337480 A GB2337480 A GB 2337480A GB 9922045 A GB9922045 A GB 9922045A GB 9922045 A GB9922045 A GB 9922045A GB 2337480 A GB2337480 A GB 2337480A
Authority
GB
United Kingdom
Prior art keywords
apertures
shape
spinneret plate
extruded
thermoplastic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9922045A
Other versions
GB9922045D0 (en
GB2337480B (en
Inventor
Philip Trevor Slack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCS Consultancy Services
Original Assignee
SCS Consultancy Services
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SCS Consultancy Services filed Critical SCS Consultancy Services
Publication of GB9922045D0 publication Critical patent/GB9922045D0/en
Publication of GB2337480A publication Critical patent/GB2337480A/en
Application granted granted Critical
Publication of GB2337480B publication Critical patent/GB2337480B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

A spinneret plate is described with a plurality of apertures through which a molten thermoplastic material may be extruded for the production of self-crimping thermoplastic filaments. On the face of the spinneret plate against which the molten thermoplastic material is urged in the extrusion process, the apertures (1) have a shape with an incomplete periphery, such as a "C" shape or swastika shape, and the shape of the apertures (2) on the face of the spinneret plate at which the extruded material reports is of complete periphery, for example circular or square apertures. The entrainment of air as the thermoplastic material is extruded creates a void (4) internally of the filament which collapses as said material reports from the apertures of the spinneret plate and is immediately cooled. This causes the fibres to self-crimp which is of great advantage - current machinery to induce crimp is expensive and cumbersome.
GB9922045A 1997-04-04 1998-04-03 Crimped solid thermoplastic filaments Expired - Fee Related GB2337480B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9706861.3A GB9706861D0 (en) 1997-04-04 1997-04-04 Crimped solid thermoplastic filaments
PCT/GB1998/000987 WO1998045512A1 (en) 1997-04-04 1998-04-03 Crimped solid thermoplastic filaments

Publications (3)

Publication Number Publication Date
GB9922045D0 GB9922045D0 (en) 1999-11-17
GB2337480A true GB2337480A (en) 1999-11-24
GB2337480B GB2337480B (en) 2001-10-24

Family

ID=10810282

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9706861.3A Pending GB9706861D0 (en) 1997-04-04 1997-04-04 Crimped solid thermoplastic filaments
GB9922045A Expired - Fee Related GB2337480B (en) 1997-04-04 1998-04-03 Crimped solid thermoplastic filaments

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9706861.3A Pending GB9706861D0 (en) 1997-04-04 1997-04-04 Crimped solid thermoplastic filaments

Country Status (3)

Country Link
AU (1) AU6926398A (en)
GB (2) GB9706861D0 (en)
WO (1) WO1998045512A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446691B1 (en) 2000-12-21 2002-09-10 Kimberly-Clark Worldwide, Inc. Dual capillary spinneret for production of homofilament crimp fibers
US6619947B2 (en) 2000-12-21 2003-09-16 Kimberly-Clark Worldwide, Inc. Dual capillary spinneret with single outlet for production of homofilament crimp fibers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB936729A (en) * 1959-05-01 1963-09-11 Du Pont Improvements in melt spinning synthetic polymers
DE2811794A1 (en) * 1977-03-18 1978-09-21 Monsanto Co SHRIMPED FIBER AND METHOD FOR MANUFACTURING IT
JPS5756512A (en) * 1980-09-17 1982-04-05 Nippon Ester Co Ltd Hollow fiber and spinneret therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB936729A (en) * 1959-05-01 1963-09-11 Du Pont Improvements in melt spinning synthetic polymers
DE2811794A1 (en) * 1977-03-18 1978-09-21 Monsanto Co SHRIMPED FIBER AND METHOD FOR MANUFACTURING IT
JPS5756512A (en) * 1980-09-17 1982-04-05 Nippon Ester Co Ltd Hollow fiber and spinneret therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, vol. 006, no 131 (C-114) & JP570056512 A *

Also Published As

Publication number Publication date
GB9922045D0 (en) 1999-11-17
GB9706861D0 (en) 1997-05-21
AU6926398A (en) 1998-10-30
GB2337480B (en) 2001-10-24
WO1998045512A1 (en) 1998-10-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050403

728V Application for restoration filed (sect. 28/1977)
728Y Application for restoration allowed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070403