GB729580A - Reducing the plastic extensibility of textile yarns, filaments, threads, cords or fabrics - Google Patents

Reducing the plastic extensibility of textile yarns, filaments, threads, cords or fabrics

Info

Publication number
GB729580A
GB729580A GB26813/52A GB2681352A GB729580A GB 729580 A GB729580 A GB 729580A GB 26813/52 A GB26813/52 A GB 26813/52A GB 2681352 A GB2681352 A GB 2681352A GB 729580 A GB729580 A GB 729580A
Authority
GB
United Kingdom
Prior art keywords
tension
fabric
stretched
stretching
minutes
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
GB26813/52A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB729580A publication Critical patent/GB729580A/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
    • D02J1/229—Relaxing
    • 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

Landscapes

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

Abstract

<PICT:0729580/IV (a)/1> <PICT:0729580/IV (a)/2> <PICT:0729580/IV (a)/3> In a process for reducing the plastic extensibility of yarns, filaments, threads or fabrics consisting of a synthetic linear polymer, especially a polyamide, an already cold-drawn yarn, filament, thread or fabric formed therefrom is stretched again at an elevated temperature, and the stretching tension is maintained for at least five minutes while the yarn &c. or fabric is kept at a temperature from about 30 DEG to about 60 DEG C. below the melting point of the polymer. As shown, Fig. 1, fabric 5 made from cold-drawn yarns of polycaprolactam is fed from roller 1 and then wound on roller 2, successive lengths of fabric being gripped and stretched between clamps 3 and 4 at about 100 DEG C., and then heated to about 180 DEG C. under the stretching tension for about 1 hour. In another arrangement, Fig. 2, the fabric 5 is stretched between a roller 11 and a braking system 7, 8, 9, 10 by applying tension to a housing 12 in the direction of arrow 6; the apparatus operates intermittently, each part of the fabric being subjected to stretching for 30 minutes at 165-185 DEG C. at a tension slightly below the breaking tension. A cold-drawn yarn or cord made from polycaprolactam is, in one example, stretched at 100 DEG C. by 38 per cent, heated in the stretched condition to 160-175 DEG C. for 45 minutes, and cooled while the tension is maintained. In another example the cord is drawn continuously through a bath heated to 175 DEG C., each part of the cord remaining in the bath for 7 minutes and being stretched therein by 40.5 per cent. In a further example, the stretching is performed at 100 DEG C. in steam; the stretching is effected by winding the cord around two rollers 16, 17 (Fig. 3) and applying tension in the direction of arrow 6, the rollers being kept apart by a rod 18 to maintain tension during the subsequent heating and cooling.
GB26813/52A 1951-10-27 1952-10-24 Reducing the plastic extensibility of textile yarns, filaments, threads, cords or fabrics Expired GB729580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE729580X 1951-10-27

Publications (1)

Publication Number Publication Date
GB729580A true GB729580A (en) 1955-05-11

Family

ID=6635974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26813/52A Expired GB729580A (en) 1951-10-27 1952-10-24 Reducing the plastic extensibility of textile yarns, filaments, threads, cords or fabrics

Country Status (3)

Country Link
FR (1) FR1064951A (en)
GB (1) GB729580A (en)
NL (2) NL100867C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102453996A (en) * 2010-10-28 2012-05-16 吴江盛汇针织有限责任公司 Straight sewing machine device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102453996A (en) * 2010-10-28 2012-05-16 吴江盛汇针织有限责任公司 Straight sewing machine device

Also Published As

Publication number Publication date
NL100867C (en)
FR1064951A (en) 1954-05-19
NL173353A (en)

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