GB1478800A - Method of producing polymeric material fibres and extrusion head for the same - Google Patents

Method of producing polymeric material fibres and extrusion head for the same

Info

Publication number
GB1478800A
GB1478800A GB49536/75A GB4953675A GB1478800A GB 1478800 A GB1478800 A GB 1478800A GB 49536/75 A GB49536/75 A GB 49536/75A GB 4953675 A GB4953675 A GB 4953675A GB 1478800 A GB1478800 A GB 1478800A
Authority
GB
United Kingdom
Prior art keywords
converging
block
polymeric material
passages
extruded
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
GB49536/75A
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.)
ROTHMANS OF PALL MALL
Rothmans Benson and Hedges Inc
Original Assignee
ROTHMANS OF PALL MALL
Rothmans of Pall Mall Canada Ltd
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 ROTHMANS OF PALL MALL, Rothmans of Pall Mall Canada Ltd filed Critical ROTHMANS OF PALL MALL
Publication of GB1478800A publication Critical patent/GB1478800A/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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising

Abstract

1478800 Spinneret ROTHMANS OF PALL MALL CANADA Ltd 2 Dec 1975 [3 Dec 1974] 49536/75 Heading B5B The spinneret comprises a support block 12, a body member 18 and two block members 38 and 40 bolted to each other. Block 12 has an opening 14 associated with an internal chamber 16 to receive molten polymeric material from an extruder (not shown). A cavity 30 in fluid flow communication with the chamber 16 is provided in body 18 and a plurality of capillary channels 32 link 30 with the exterior of block 18, which in turn has a protrusion 22 having converging planar faces, 24 and 26 converging to and terminating at the line of intersection through 32. Two block members 28 and 40 are on each vertical side of protrusion 22, each member having a face 44 complementarily angled with respect to the adjacent planar face 24 and 26 and in engagement therewith. A plurality of grooves 46 in faces 44 define with face 24 and 26 passages 48. Equal numbers of channels 34 and 48 are present. An elongated gallery 58 and 60 extends coextensively of blocks 38 and 40 and is in fluid flow communication with a source of compressed air. Conduits 62 join galleries 58 and 60 to passages 48 to provide for each orifice 34 two converging air streams in passages 48. Molten polymeric material is extruded into each of the converging air streams over a path length of each of the converging air streams upstream of intersection 28 and the air stream then draws the extruded material into a fibre which is conveyed away from the extrusion head encased by the air stream which prevents bundling. A wide variety of polymers may be extruded.
GB49536/75A 1974-12-03 1975-12-02 Method of producing polymeric material fibres and extrusion head for the same Expired GB1478800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA215,442A CA1057924A (en) 1974-12-03 1974-12-03 Method of producing polymeric material fibres and extrusion head for the same

Publications (1)

Publication Number Publication Date
GB1478800A true GB1478800A (en) 1977-07-06

Family

ID=4101797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49536/75A Expired GB1478800A (en) 1974-12-03 1975-12-02 Method of producing polymeric material fibres and extrusion head for the same

Country Status (11)

Country Link
JP (1) JPS5178810A (en)
AU (1) AU501055B2 (en)
CA (1) CA1057924A (en)
DE (1) DE2550463C3 (en)
FR (1) FR2293503A1 (en)
GB (1) GB1478800A (en)
IT (1) IT1051022B (en)
MX (1) MX144427A (en)
NL (1) NL163574C (en)
SE (1) SE401532B (en)
ZA (1) ZA756891B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633339A2 (en) * 1989-06-07 1995-01-11 Kimberly-Clark Corporation Process and apparatus for forming fibers

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52132121A (en) * 1976-04-28 1977-11-05 Nippon Sheet Glass Co Ltd Manufacture of thermal plastic fiber
JPS5473916A (en) * 1977-11-25 1979-06-13 Asahi Chem Ind Co Ltd Melt blow spinning device
JPS54103466A (en) * 1978-02-01 1979-08-14 Asahi Chem Ind Co Ltd Melt blowing die
US4486161A (en) * 1983-05-12 1984-12-04 Kimberly-Clark Corporation Melt-blowing die tip with integral tie bars
DE3630392C1 (en) * 1986-09-06 1988-02-11 Rhodia Ag Process for the production of consolidated nonwovens
JP2743080B2 (en) * 1989-01-05 1998-04-22 アキュレト・プロダクツ・カンパニー Nonwoven web manufacturing method
US5145689A (en) * 1990-10-17 1992-09-08 Exxon Chemical Patents Inc. Meltblowing die
GB9307710D0 (en) * 1993-04-14 1993-06-02 Rothmans Benson & Hedges Smoking apparatus-l
CN111194363B (en) * 2017-10-06 2023-09-08 连津格股份公司 Apparatus for extrusion of filaments and production of spunbonded fabrics

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825380A (en) * 1972-07-07 1974-07-23 Exxon Research Engineering Co Melt-blowing die for producing nonwoven mats

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633339A2 (en) * 1989-06-07 1995-01-11 Kimberly-Clark Corporation Process and apparatus for forming fibers
EP0633339A3 (en) * 1989-06-07 1998-12-16 Kimberly-Clark Worldwide, Inc. Process and apparatus for forming fibers

Also Published As

Publication number Publication date
MX144427A (en) 1981-10-14
NL163574C (en) 1980-09-15
DE2550463B2 (en) 1978-07-20
AU501055B2 (en) 1979-06-07
FR2293503B1 (en) 1979-06-22
IT1051022B (en) 1981-04-21
NL163574B (en) 1980-04-15
NL7513965A (en) 1976-06-08
AU8639875A (en) 1977-05-12
FR2293503A1 (en) 1976-07-02
ZA756891B (en) 1976-10-27
DE2550463A1 (en) 1976-06-10
JPS5178810A (en) 1976-07-09
SE7512306L (en) 1976-06-04
DE2550463C3 (en) 1979-03-08
SE401532B (en) 1978-05-16
CA1057924A (en) 1979-07-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee