GB1147632A - Improvements relating to the production of crimped nylon fibres - Google Patents

Improvements relating to the production of crimped nylon fibres

Info

Publication number
GB1147632A
GB1147632A GB1671265A GB1671265A GB1147632A GB 1147632 A GB1147632 A GB 1147632A GB 1671265 A GB1671265 A GB 1671265A GB 1671265 A GB1671265 A GB 1671265A GB 1147632 A GB1147632 A GB 1147632A
Authority
GB
United Kingdom
Prior art keywords
fibres
nylon
fibre
carbon dioxide
solid carbon
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
GB1671265A
Inventor
Ian Ernest Climie
Christopher Linley James Grove
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 GB1671265A priority Critical patent/GB1147632A/en
Publication of GB1147632A publication Critical patent/GB1147632A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/228—Stretching in two or more steps, with or without intermediate steps
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

1,147,632. Crimped nylon fibres. COURTAULDS Ltd. 20 July, 1966 [21 April, 1965], No. 16712/65. Heading B5B. Crimped nylon fibres are made by forming an undrawn nylon fibre, drawing it while it is cooled to a temperature not greater than minus 20‹ C. and allowing the fibres so drawn to relax whereby crimp is automatically developed therein. The fibre is suitably drawn while it is in contact with solid carbon dioxide, or in contact with a metal or ceramic surface which is cooled by solid carbon dioxide, e.g. a metal plate or snubbing pin. The fibre may be pre-tensioned before drying. Additionally, the supply package of yarn may itself be cooled to a low temperature prior to drawing. For nylon 6 fibres in contact with solid carbon dioxide at about minus 50‹ C. to minus 70‹ C., drawing to give an increase in length of from 100 to 300% may be used. Cooling by other means e.g. liquid air or liquid nitrogen may also be used as may an electrical Peltier cooling element. In an example, a bundle of nylon 6 fibres is pre-tensioned and then drawn to a draw ratio of 2.5: 1 while passing over a cold plate consisting of a metal box filled with solid carbon dioxide and having a recess running vertically along the face through which the fibres are passed. Fibres from the second draw roller were collected on a bobbin. When the tension was released filaments immediately assumed a helical crimp. A similar type of fibre was obtained using a draw ratio of 2À75: 1.
GB1671265A 1965-04-21 1965-04-21 Improvements relating to the production of crimped nylon fibres Expired GB1147632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1671265A GB1147632A (en) 1965-04-21 1965-04-21 Improvements relating to the production of crimped nylon fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1671265A GB1147632A (en) 1965-04-21 1965-04-21 Improvements relating to the production of crimped nylon fibres

Publications (1)

Publication Number Publication Date
GB1147632A true GB1147632A (en) 1969-04-02

Family

ID=10082307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1671265A Expired GB1147632A (en) 1965-04-21 1965-04-21 Improvements relating to the production of crimped nylon fibres

Country Status (1)

Country Link
GB (1) GB1147632A (en)

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