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GB1234782A - Fibrillation process - Google Patents

Fibrillation process

Info

Publication number
GB1234782A
GB1234782A GB4510867A GB4510867A GB1234782A GB 1234782 A GB1234782 A GB 1234782A GB 4510867 A GB4510867 A GB 4510867A GB 4510867 A GB4510867 A GB 4510867A GB 1234782 A GB1234782 A GB 1234782A
Authority
GB
United Kingdom
Prior art keywords
strip
film
jets
holes
inch
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
GB4510867A
Inventor
Geoffrey James Adams
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB4510867A priority Critical patent/GB1234782A/en
Publication of GB1234782A publication Critical patent/GB1234782A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • 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
    • D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423—Formation 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D04H13/02—Production of non-woven fabrics by partial defibrillation of oriented thermoplastics films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)

Abstract

1,234,782. Fibrillating orientated strips and films. COURTAULDS Ltd. 3 Oct., 1968 [4 Oct., 1967], No. 45108/67. Heading B5B. An orientated strip or film of a crystalline polymeric material which has been longitudinally orientated to render it fibrillatable is fibrillated by moving it longitudinally past a plurality of fluid jets together extending trans. versely of the moving strip or film and directed at the strip or film. The fluid jets may issue from one or more lines of jet holes aligned transversely across the strip or film. Each line of jet holes may extend across the whole width of the strip or film and may be aligned at right angles to the longitudinal axis of the strip or film. The strip or film may be held under tension against the jet holes as it is moved past them. The fluid jets may be liquid or gaseous but are conveniently jets of air issuing from a line of jet holes aligned transversely across the strip or film. The strip or film may be made of polypropylene. The fibrillated strip or film may be twisted to form a twine or may be chopped transversely to form staple fibres. In the illustrated example a strip 1 (Figs. 1 and 2) of transparent crystalline polypropylene film is stretched in the longitudinal direction at a stretch ratio of 10 : 1 at a temperature of 150‹ C. to a stretched size of 0À5 inch width and 0À002 inch thickness. The strip is then passed in the direction of the arrow A over the face 2 of a jet head 3 at a speed of 100 metres per minute, being pressed against the face 2 by the tensioning rollers 4 and 5. At the same time air at a pressure of 40 p.s.i. is passed into the chamber 6 of the jet head 3 through inlet pipe 7 and emerges from the chamber 6 through two lines of jet holes 8 and 9 in the face 2 as a series of air jets. The holes are 0À005 inch in diameter and are spaced apart in each line by 0À01 inch. As the strip 1 is passed over the lines of holes 8 and 9, the air jets burst through the readily fibrillatable strip to cause the formation of a series of longitudinal splits 10 in the strip.
GB4510867A 1967-10-04 1967-10-04 Fibrillation process Expired GB1234782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4510867A GB1234782A (en) 1967-10-04 1967-10-04 Fibrillation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4510867A GB1234782A (en) 1967-10-04 1967-10-04 Fibrillation process

Publications (1)

Publication Number Publication Date
GB1234782A true GB1234782A (en) 1971-06-09

Family

ID=10435915

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4510867A Expired GB1234782A (en) 1967-10-04 1967-10-04 Fibrillation process

Country Status (1)

Country Link
GB (1) GB1234782A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625937A1 (en) * 1988-01-19 1989-07-21 Vuillaume Andre METHOD AND DEVICE FOR PUNCHING A SHEET PRODUCT, AND PERFORATED PRODUCT THUS OBTAINED
US6110588A (en) * 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6630231B2 (en) 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
US6692823B2 (en) 2001-12-19 2004-02-17 3M Innovative Properties Company Microfibrillated articles comprising hydrophillic component
US6753080B1 (en) 2002-01-29 2004-06-22 3M Innovative Properties Company Receptor medium having a microfibrillated surface
US7192643B2 (en) 2001-08-22 2007-03-20 3M Innovative Properties Company Toughened cementitious composites

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625937A1 (en) * 1988-01-19 1989-07-21 Vuillaume Andre METHOD AND DEVICE FOR PUNCHING A SHEET PRODUCT, AND PERFORATED PRODUCT THUS OBTAINED
US6110588A (en) * 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6432347B1 (en) 1999-02-05 2002-08-13 3M Innovative Properties Company Process of making a microfibrillated article
US6432532B2 (en) 1999-02-05 2002-08-13 3M Innovative Properties Company Microfibers and method of making
US6630231B2 (en) 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US7014803B2 (en) 1999-02-05 2006-03-21 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
US7192643B2 (en) 2001-08-22 2007-03-20 3M Innovative Properties Company Toughened cementitious composites
US6692823B2 (en) 2001-12-19 2004-02-17 3M Innovative Properties Company Microfibrillated articles comprising hydrophillic component
US6753080B1 (en) 2002-01-29 2004-06-22 3M Innovative Properties Company Receptor medium having a microfibrillated surface

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