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GB1219110A - Methods of producing filamentary thermoplastics materials - Google Patents

Methods of producing filamentary thermoplastics materials

Info

Publication number
GB1219110A
GB1219110A GB1770268A GB1770268A GB1219110A GB 1219110 A GB1219110 A GB 1219110A GB 1770268 A GB1770268 A GB 1770268A GB 1770268 A GB1770268 A GB 1770268A GB 1219110 A GB1219110 A GB 1219110A
Authority
GB
United Kingdom
Prior art keywords
parts
extrusion orifice
filaments
diameter
extrusion
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.)
Expired
Application number
GB1770268A
Inventor
Claude Ledoux
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.)
Produits Chimiques Pechiney Saint Gobain
Original Assignee
Produits Chimiques Pechiney Saint Gobain
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 Produits Chimiques Pechiney Saint Gobain filed Critical Produits Chimiques Pechiney Saint Gobain
Publication of GB1219110A publication Critical patent/GB1219110A/en
Expired 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,219,110. Spinneret plates for melt-spinning. PRODUITS CHIMIQUES PECHINEY-SAINT GOBAIN. 11 April, 1968 [13 April, 1967], No. 17702/68. Heading B5B. A spinneret plate for melt spinning filaments of synthetic organic thermoplastic material is provided with extrusion orifices each having first and second parts which are contiguous, the second part being downstream of the first part and increasing in mean diameter in the downstream direction, the largest mean diameter of the second part being 1À5 to 3À5 times, preferably 1À5 to 2À5 times, the mean diameter of the first part. The filaments produced may be drawn down in a thermal conditioning zone and thereafter, after being solidified by further cooling, may be drawn. Each extrusion orifice may have a third part upstream of and contiguous with the first part, the third part increasing in mean diameter in the upstream direction and extending to the upstream face of the spinneret plate. Each extrusion orifice may also have a fourth part downstream of and contiguous with the second part, the fourth part being of uniform cross-section throughout its length and extending to the downstream face of the spinneret plate. The fourth part may be of similar cross-sectional shape to the desired cross-sectional shape of the extruded filaments. Each of the four parts of each extrusion orifice may be of circular cross-section and each of the parts may have a common axis perpendicular to the spinneret plate. The third, first, second and fourth parts of each extrusion orifice may be respectively frusto conical, cylindrical, frusto conical and cylindrical. The length of the first part of each extrusion orifice may be at least 1À5 times its diameter. The length of the second part of each extrusion orifice may be 0À2 to 3 times its largest diameter. The sum of the lengths of the second and fourth parts of each extrusion orifice may be 0À2 to 3 times the diameter of the fourth part. The second or the fourth parts of two or more adjacent extrusion orifices may intersect whereby longitudinally welded filaments are extruded. The drawing down of the filaments in the thermal conditioning zone may result in each filament being elongated by a factor of at least 1000, of which 9/10 ths occurs during the drawing down.
GB1770268A 1967-04-13 1968-04-11 Methods of producing filamentary thermoplastics materials Expired GB1219110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR102598A FR1526263A (en) 1967-04-13 1967-04-13 Improvement in dies intended for the extrusion of fibers of small sections

Publications (1)

Publication Number Publication Date
GB1219110A true GB1219110A (en) 1971-01-13

Family

ID=8628790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1770268A Expired GB1219110A (en) 1967-04-13 1968-04-11 Methods of producing filamentary thermoplastics materials

Country Status (5)

Country Link
BE (1) BE713637A (en)
DE (1) DE1760174A1 (en)
FR (1) FR1526263A (en)
GB (1) GB1219110A (en)
NL (1) NL6805248A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056597A (en) * 1975-04-03 1977-11-01 Phillips Petroleum Company Process and die for extrusion of a resinous material
US4112166A (en) * 1975-01-02 1978-09-05 Monsanto Company Method of extruding thermoplastic sheets
US4376743A (en) * 1981-06-12 1983-03-15 Fiber Industries, Inc. Melt spinning process
US4384842A (en) * 1980-03-14 1983-05-24 Alfredo Cavalli Extrusion plate for food paste
US4411852A (en) * 1982-02-18 1983-10-25 Fiber Industries, Inc. Spinning process with a desensitized spinneret design
DE3346257A1 (en) * 1983-03-09 1984-09-13 Kashima Oil Co. Ltd., Tokio/Tokyo METHOD FOR PRODUCING CONTINUOUS YARNS FROM CARBON FIBERS
GB2150924A (en) * 1983-11-10 1985-07-10 Kashima Oil Carbon fibres
GB2247429A (en) * 1990-09-01 1992-03-04 Extrusion Systems Ltd Improvements in spinnerettes for use in the production of filaments from thermo-plastic polymers
CN106381529A (en) * 2016-11-30 2017-02-08 南京瘦懒猴信息科技有限公司 Spinning spinneret plate
CN110904517A (en) * 2018-09-14 2020-03-24 厦门当盛新材料有限公司 Nozzle and flash evaporation spinning equipment with same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507991A (en) * 1994-10-18 1996-04-16 Mudd; John R. Extrusion method for producing FD&C dyes

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112166A (en) * 1975-01-02 1978-09-05 Monsanto Company Method of extruding thermoplastic sheets
US4056597A (en) * 1975-04-03 1977-11-01 Phillips Petroleum Company Process and die for extrusion of a resinous material
US4384842A (en) * 1980-03-14 1983-05-24 Alfredo Cavalli Extrusion plate for food paste
US4376743A (en) * 1981-06-12 1983-03-15 Fiber Industries, Inc. Melt spinning process
US4411852A (en) * 1982-02-18 1983-10-25 Fiber Industries, Inc. Spinning process with a desensitized spinneret design
US4814121A (en) * 1983-03-09 1989-03-21 Kashima Oil Company, Limited Method for spinning a petroleum-origin mesophase
DE3346257A1 (en) * 1983-03-09 1984-09-13 Kashima Oil Co. Ltd., Tokio/Tokyo METHOD FOR PRODUCING CONTINUOUS YARNS FROM CARBON FIBERS
GB2150924A (en) * 1983-11-10 1985-07-10 Kashima Oil Carbon fibres
GB2247429A (en) * 1990-09-01 1992-03-04 Extrusion Systems Ltd Improvements in spinnerettes for use in the production of filaments from thermo-plastic polymers
CN106381529A (en) * 2016-11-30 2017-02-08 南京瘦懒猴信息科技有限公司 Spinning spinneret plate
CN106381529B (en) * 2016-11-30 2019-02-05 杭州永星塑料化纤有限公司 A spinning spinneret
CN110904517A (en) * 2018-09-14 2020-03-24 厦门当盛新材料有限公司 Nozzle and flash evaporation spinning equipment with same
CN110904517B (en) * 2018-09-14 2024-09-20 厦门当盛新材料有限公司 Nozzle and flash evaporation method spinning equipment provided with same

Also Published As

Publication number Publication date
DE1760174A1 (en) 1971-12-23
BE713637A (en) 1968-10-14
FR1526263A (en) 1968-05-24
NL6805248A (en) 1968-10-14

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