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GB927317A - Process for treating polypropylene filaments - Google Patents

Process for treating polypropylene filaments

Info

Publication number
GB927317A
GB927317A GB3511860A GB3511860A GB927317A GB 927317 A GB927317 A GB 927317A GB 3511860 A GB3511860 A GB 3511860A GB 3511860 A GB3511860 A GB 3511860A GB 927317 A GB927317 A GB 927317A
Authority
GB
United Kingdom
Prior art keywords
drawn
monofilaments
draw
draw ratio
temperature
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
GB3511860A
Inventor
Reginald Yates
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to BE609088D priority Critical patent/BE609088A/xx
Priority to NL270164D priority patent/NL270164A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3511860A priority patent/GB927317A/en
Priority to ES270974A priority patent/ES270974A1/en
Priority to FR875947A priority patent/FR1309458A/en
Priority to CH1190061A priority patent/CH391949A/en
Publication of GB927317A publication Critical patent/GB927317A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • 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

Landscapes

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

Abstract

A process for the production of polypropylene monofilaments wherein the monofilaments are drawn at least 3 times their original length and thereafter heat-treated at a temperature below the melting point of the polymer but above 90 DEG C., is characterized in the drawn monofilaments are heated under such conditions that they are allowed to contract by up to 25% of their drawn length, in which case the degree of draw used should be not greater than 6:1 and the temperature of heat treatment is from 90 DEG -125 DEG C., or alternatively, the drawn monofilament is heat-treated while it is held at substantially constant length, in which case the degree of draw used should be not greater than 7:1 and the temperature of heat treatment lies above a certain minimum temperature, which minimum temperature is dependent upon the degree of draw used and has a value in DEG C., which varies according to a substantially linear relation with the degree of draw used between the limits of 3:1 and 7:1 such that the minimum temperature is 112 DEG C. when the draw ratio is 4,5:1; 120 DEG C. when the draw ratio is 5:1; 128 DEG C. when the draw ratio is 5,5:1; 135 DEG C. when the draw ratio is 6:1; 142 DEG C. when the draw ratio is 6,5:1 and 151 DEG C. when the draw ratio is 7:1. Preferably the monofilaments are drawn from 4,0-5,5 times their original length at a temperature of at least 80 DEG C. but less than 130 DEG C. If desired the monofilaments may be drawn in steam at atmospheric pressure.
GB3511860A 1960-10-13 1960-10-13 Process for treating polypropylene filaments Expired GB927317A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE609088D BE609088A (en) 1960-10-13
NL270164D NL270164A (en) 1960-10-13
GB3511860A GB927317A (en) 1960-10-13 1960-10-13 Process for treating polypropylene filaments
ES270974A ES270974A1 (en) 1960-10-13 1961-10-06 Procedures for obtaining perfected polypropylene monofilaments (Machine-translation by Google Translate, not legally binding)
FR875947A FR1309458A (en) 1960-10-13 1961-10-13 Polypropylene filament treatment process
CH1190061A CH391949A (en) 1960-10-13 1961-10-13 Process for making improved polypropylene monofilaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3511860A GB927317A (en) 1960-10-13 1960-10-13 Process for treating polypropylene filaments

Publications (1)

Publication Number Publication Date
GB927317A true GB927317A (en) 1963-05-29

Family

ID=10374035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3511860A Expired GB927317A (en) 1960-10-13 1960-10-13 Process for treating polypropylene filaments

Country Status (5)

Country Link
BE (1) BE609088A (en)
CH (1) CH391949A (en)
ES (1) ES270974A1 (en)
GB (1) GB927317A (en)
NL (1) NL270164A (en)

Also Published As

Publication number Publication date
ES270974A1 (en) 1962-02-16
BE609088A (en)
NL270164A (en)
CH391949A (en) 1965-05-15

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