GB909361A - Improvements in or relating to crimping of filaments - Google Patents

Improvements in or relating to crimping of filaments

Info

Publication number
GB909361A
GB909361A GB2549960A GB2549960A GB909361A GB 909361 A GB909361 A GB 909361A GB 2549960 A GB2549960 A GB 2549960A GB 2549960 A GB2549960 A GB 2549960A GB 909361 A GB909361 A GB 909361A
Authority
GB
United Kingdom
Prior art keywords
filaments
filament
crimping
hot
july
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
GB2549960A
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.)
Heberlein and Co AG
Original Assignee
Heberlein and Co AG
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 Heberlein and Co AG filed Critical Heberlein and Co AG
Publication of GB909361A publication Critical patent/GB909361A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D02G1/004—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by heating fibres, filaments, yarns or threads so as to create a temperature gradient across their diameter, thereby imparting them latent asymmetrical shrinkage properties
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

909,361. Crimping fibres. HEBERLEIN & CO. A.G. July 21, 1960 [July 31, 1959], No. 25499/60. Class 120 (3). In a process for crimping continuous filaments (including filament bundles and filaments of rectangular cross-section) of thermoplastic synthetic material e.g. polyamide, polyester, vinyl polymers or copolymers, by converting the filaments partially into the plastic state lengthwise under tension on a surface portion of narrow width and subsequently relaxing the tension, a temperature gradient is produced within the filament (whilst it is under tensile stress) perpendicular to the longitudinal axis thereof with the aid of energy obtained from a fluid medium e.g. the hot gases of a (oxy-acetylene) flame, atomic hydrogen, a plasma jet, a stream of hot gas such as hydrogen or helium as may be contained in a closed cycle, or a liquid. The gradient may be produced in a filament which has not been subjected to any, or only partial, cold-stretching for the purpose of molecular orientation, and the cold-stretching completed after the processing. The crimp may be fully developed by an additional heat treatment e.g. with hot air, steam or hot water, of the filaments in relaxed condition.
GB2549960A 1959-07-31 1960-07-21 Improvements in or relating to crimping of filaments Expired GB909361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7642059A CH369254A (en) 1959-07-31 1959-07-31 Process for the permanent crimping of textile fibers in the form of endless thread, thread bundle or band-like structures

Publications (1)

Publication Number Publication Date
GB909361A true GB909361A (en) 1962-10-31

Family

ID=4534908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2549960A Expired GB909361A (en) 1959-07-31 1960-07-21 Improvements in or relating to crimping of filaments

Country Status (2)

Country Link
CH (1) CH369254A (en)
GB (1) GB909361A (en)

Also Published As

Publication number Publication date
CH369254A (en) 1963-01-31

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