GB1260837A - The manufacture of filaments, fibres and yarns - Google Patents

The manufacture of filaments, fibres and yarns

Info

Publication number
GB1260837A
GB1260837A GB1752268A GB1752268A GB1260837A GB 1260837 A GB1260837 A GB 1260837A GB 1752268 A GB1752268 A GB 1752268A GB 1752268 A GB1752268 A GB 1752268A GB 1260837 A GB1260837 A GB 1260837A
Authority
GB
United Kingdom
Prior art keywords
web
ridges
fibres
fibrillation
film
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
GB1752268A
Inventor
Brian James Vernon
Wladyslaw Henry Skoroszewski
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB1752268A priority Critical patent/GB1260837A/en
Priority claimed from CH529269A external-priority patent/CH520216A/en
Priority claimed from JP2680269A external-priority patent/JPS50973B1/ja
Priority claimed from DE2031304A external-priority patent/DE2031304C3/de
Priority claimed from DE19702031338 external-priority patent/DE2031338C3/de
Priority claimed from FR7023319A external-priority patent/FR2047955B2/fr
Publication of GB1260837A publication Critical patent/GB1260837A/en
Application status is Expired legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/42Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/222Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/44Compression means for making articles of indefinite length
    • B29C43/46Rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10Polymers of propylene
    • B29K2023/12PP, i.e. polypropylene

Abstract

1,260,837. Film fibrillation. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 26 March, 1969 [11 April, 1968], No. 17522/68. Heading B5B. Artificial fibres are made by profiling a film web of a molecularly-orientable synthetic organic thermoplastic polymer by impressing into a surface thereof a plurality of longitudinally extending grooves disposed in close but spaced apart relationship and stretching the profiled film web to effect longitudinal orientation thereof at a stretch ratio sufficiently high to render the film web fibrillatable and subjecting the stretched film web to a fibrillation treatment, the grooves being formed by passing the film web at a temperature below the crystalline melting point of the polymer through the nip formed between two contra-rotating cylindrical elements having non-yielding surfaces, at least one of the cylindrical elements having a plurality of closely-spaced parallel surface ridges, each ridge having inwardly directed sides leading to peaks which are rounded off to a small radius. The pitch of the ridges may be within the range 0À003 to 0À05 inch and the depth of the troughs formed between adjacent ridges may be within the range 0À002 to 0À02 inch. Both surfaces of the film web may be impressed with the grooves by passage through the nip formed between two cylindrical elements each of which has ridges of identical profile and pitch, the cylindrical elements being positioned in such a manner that the peaks of the ridges of one element are opposite those of the other. The film web may be preheated prior to contacting the cylindrical elements and the preheated web may be formed by the blown-film technique in a preceding stage of the process. The fibrillation treatment may comprise an air blast treatment effected by passing the stretched web through an elongated passage of restricted cross-section through which a current of air flows at a high velocity in the direction of travel of the web. The web may consist of a laminate of two or more polymer films which differ in chemical and/or physical properties. The laminate may be formed by feeding two or more separate films in superimposed relationship to the nip. A heat transfer medium may be circulated through one or both elements to maintain them at a desired surface temperature. The cylindrical elements may be of steel. The filaments produced by fibrillation may be cut to form staple fibres which may be twisted into a yarn. The ridges may be divided lengthwise into two or more sections separated by short unridged portions of the peripheral surface of the elements, the unridged portions being in staggered relationship across the width thereof whereby the fibres resulting from the fibrillation step are incompletely separated from one another. The fibrillation step may comprise a twisting operation which yields the resulting fibres in the form of a yarn. The film webs used in the process of the invention may consist of polypropylene, high density polyethylene or a nylon. The term "polymer" is used in the Specification to include a polymer composition. The individual fibres of the invention may have a denier of, for example 5 to 90 and a tenacity of, for example, up to 7 grams per denier.
GB1752268A 1968-04-11 1968-04-11 The manufacture of filaments, fibres and yarns Expired GB1260837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1752268A GB1260837A (en) 1968-04-11 1968-04-11 The manufacture of filaments, fibres and yarns

Applications Claiming Priority (23)

Application Number Priority Date Filing Date Title
GB1752268A GB1260837A (en) 1968-04-11 1968-04-11 The manufacture of filaments, fibres and yarns
CH529269A CH520216A (en) 1968-04-10 1969-04-08 Method and apparatus for the production of synthetic fibers
JP2680269A JPS50973B1 (en) 1968-04-10 1969-04-08
AT340669A AT331957B (en) 1968-04-10 1969-04-08 Method and apparatus for manufacture of synthetic fibers
FI101469A FI50540C (en) 1968-04-10 1969-04-08 A method and apparatus for the production of synthetic fibers,
BE731190D BE731190A (en) 1968-04-10 1969-04-08
DK191669A DK134441C (en) 1968-04-10 1969-04-08 PROCEDURE and apparatus for making synthetic fibreved profiling and splitting of the film
DE1917822A DE1917822C3 (en) 1968-04-10 1969-04-08
FR6910744A FR2007423A1 (en) 1968-04-10 1969-04-08 Fibre prodn. from polypropylene and polyethylene films - by fibrillation
CA048,101A CA1046722A (en) 1968-04-10 1969-04-08 Manufacture of synthetic fibres and yarns
IE46669A IE32769B1 (en) 1968-04-10 1969-04-09 Manufacture of synthetic fibres and yarns
NL6905427A NL6905427A (en) 1968-04-10 1969-04-09
MX100266U MX3205E (en) 1968-04-10 1969-04-10 Improved machine for the manufacture of synthetic fibers
DE2031304A DE2031304C3 (en) 1968-04-10 1970-06-24
DE19702031338 DE2031338C3 (en) 1968-04-10 1970-06-24
CH956570A CH568413A5 (en) 1968-04-10 1970-06-24
BE752461D BE752461R (en) 1968-04-10 1970-06-24 Fiber manufacturing and son
CH956670A CH568414A5 (en) 1968-04-10 1970-06-24
NL7009252A NL7009252A (en) 1968-04-10 1970-06-24
NL7009253A NL7009253A (en) 1968-04-10 1970-06-24
FR707023318A FR2054589B2 (en) 1968-04-10 1970-06-24
BE752460D BE752460R (en) 1968-04-10 1970-06-24 Producing fibers and son
FR7023319A FR2047955B2 (en) 1968-04-10 1970-06-24

Publications (1)

Publication Number Publication Date
GB1260837A true GB1260837A (en) 1972-01-19

Family

ID=10096664

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1752268A Expired GB1260837A (en) 1968-04-11 1968-04-11 The manufacture of filaments, fibres and yarns

Country Status (1)

Country Link
GB (1) GB1260837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814131A (en) * 1987-07-02 1989-03-21 Atlas Sheldon M Process for producing a shaped article, such as fiber composed of a hydrophobic polymer and a hydrophilic polymer
US5759926A (en) 1995-06-07 1998-06-02 Kimberly-Clark Worldwide, Inc. Fine denier fibers and fabrics made therefrom
US6624100B1 (en) 1995-11-30 2003-09-23 Kimberly-Clark Worldwide, Inc. Microfiber nonwoven web laminates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814131A (en) * 1987-07-02 1989-03-21 Atlas Sheldon M Process for producing a shaped article, such as fiber composed of a hydrophobic polymer and a hydrophilic polymer
US5759926A (en) 1995-06-07 1998-06-02 Kimberly-Clark Worldwide, Inc. Fine denier fibers and fabrics made therefrom
US6624100B1 (en) 1995-11-30 2003-09-23 Kimberly-Clark Worldwide, Inc. Microfiber nonwoven web laminates

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years