GB1201433A - Improvements in the treatment of thermoplastic elastomeric yarns - Google Patents

Improvements in the treatment of thermoplastic elastomeric yarns

Info

Publication number
GB1201433A
GB1201433A GB4774/68A GB477468A GB1201433A GB 1201433 A GB1201433 A GB 1201433A GB 4774/68 A GB4774/68 A GB 4774/68A GB 477468 A GB477468 A GB 477468A GB 1201433 A GB1201433 A GB 1201433A
Authority
GB
United Kingdom
Prior art keywords
yarn
temperature
covering
bare
package
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
GB4774/68A
Inventor
David Wilson
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.)
Clutsom Penn International Ltd
Original Assignee
Clutsom Penn International 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
Application filed by Clutsom Penn International Ltd filed Critical Clutsom Penn International Ltd
Priority to GB4774/68A priority Critical patent/GB1201433A/en
Priority to IE16/69A priority patent/IE32842B1/en
Priority to US789119A priority patent/US3527045A/en
Priority to NL6900357A priority patent/NL6900357A/xx
Priority to DE19691901204 priority patent/DE1901204A1/en
Priority to IL31407A priority patent/IL31407A/en
Priority to CH55669A priority patent/CH487277A/en
Priority to ES362928A priority patent/ES362928A1/en
Priority to BE727558D priority patent/BE727558A/xx
Priority to FR6901740A priority patent/FR2000960A1/fr
Priority to RO58922A priority patent/RO56655A/ro
Priority to AT91169A priority patent/AT313462B/en
Priority to SE1176/69A priority patent/SE342264B/xx
Publication of GB1201433A publication Critical patent/GB1201433A/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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/322—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using hollow spindles
    • 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
    • D01F6/70—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes

Abstract

1,201,433. Treating elastomeric segmented polyurethane yarns. CLUTSOM-PENN INTERNATIONAL Ltd. 30 Dec., 1968 [30 Jan., 1968], No. 4774/68. Heading B5B. [Also in Divisions B8 and D1] Thermoplastic elastomeric yarns in which the yarn material contains at least 85% by weight of segmented polyurethane ("Spandex" yarns) are treated by simultaneously stretching the bare yarn to an extent of less than 200% of its length prior to stretching and subjecting it to a temperature at or above its sticking temperature in the range 215-300‹ C. over a period of time not exceeding 30 seconds. The process may be carried out on a covering machine as part of a covering operation on the bare Spandex yarn or as part of a winding operation, e.g. when winding bare Spandex yarn from one package to another. The yarn may be treated under such conditions of stretching and temperature as to result in increased elongation at break. Advantageously, the bare yarn may be stretched whilst it is being caused to run over and preferably in contact with an electrically heated plate. In the covering machine shown in the diagrammatic drawing, a bare Spandex yarn Y is drawn from a supply package 1 and finally wound up on to a take-up package 2. The covering machine comprises two covering spindles 3 and 4 which support bobbins 5 and 6 of covering threads. The Spandex yarn Y runs freely right through the spindles 3 and 4, and the latter are spaced apart axially in, and arranged to rotate about, a straight upward portion of the path of travel of the yarn. The yarn Y passes from the supply package 1 over the first and second feed wheels 8 and 9, the wheel 9 being driven at a higher peripheral speed than wheel 8 to stretch the yarn and the yarn being at the same time heated by being guided through a heater 7 incorporating an electrically heated plate 7<SP>1</SP> over and in contact with which the yarn travels. The covered stretched yarn after its passage through the covering spindle 4 passes round a take-up roller 10 and is laid evenly upon the package 2 by the traversing guide 11. The temperature of the plate 7<SP>1</SP> may be measured by means of a Thermophil temperature probe. The sticking temperature of the bare Spandex yarn is defined as the temperature at which the yarn will just stick to a heated brass block when held against the surface of the block for 5 seconds with a 200 gram weight. The temperature of the block is measured by means of a Thermophil temperature probe.
GB4774/68A 1968-01-30 1968-01-30 Improvements in the treatment of thermoplastic elastomeric yarns Expired GB1201433A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB4774/68A GB1201433A (en) 1968-01-30 1968-01-30 Improvements in the treatment of thermoplastic elastomeric yarns
IE16/69A IE32842B1 (en) 1968-01-30 1969-01-03 Improvements in the treatment of thermoplastic elastomeric yarns
US789119A US3527045A (en) 1968-01-30 1969-01-06 Production of yarns
NL6900357A NL6900357A (en) 1968-01-30 1969-01-09
DE19691901204 DE1901204A1 (en) 1968-01-30 1969-01-10 Process for the production of yarn
IL31407A IL31407A (en) 1968-01-30 1969-01-12 Treatment of thermoplastic elastomeric yarns
CH55669A CH487277A (en) 1968-01-30 1969-01-16 Process for the production of thermoplastic, elastomeric yarn
ES362928A ES362928A1 (en) 1968-01-30 1969-01-25 Production of yarns
BE727558D BE727558A (en) 1968-01-30 1969-01-28
FR6901740A FR2000960A1 (en) 1968-01-30 1969-01-29
RO58922A RO56655A (en) 1968-01-30 1969-01-29
AT91169A AT313462B (en) 1968-01-30 1969-01-29 Method for treating a thermoplastic, elastomeric yarn
SE1176/69A SE342264B (en) 1968-01-30 1969-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4774/68A GB1201433A (en) 1968-01-30 1968-01-30 Improvements in the treatment of thermoplastic elastomeric yarns

Publications (1)

Publication Number Publication Date
GB1201433A true GB1201433A (en) 1970-08-05

Family

ID=9783566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4774/68A Expired GB1201433A (en) 1968-01-30 1968-01-30 Improvements in the treatment of thermoplastic elastomeric yarns

Country Status (13)

Country Link
US (1) US3527045A (en)
AT (1) AT313462B (en)
BE (1) BE727558A (en)
CH (1) CH487277A (en)
DE (1) DE1901204A1 (en)
ES (1) ES362928A1 (en)
FR (1) FR2000960A1 (en)
GB (1) GB1201433A (en)
IE (1) IE32842B1 (en)
IL (1) IL31407A (en)
NL (1) NL6900357A (en)
RO (1) RO56655A (en)
SE (1) SE342264B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362433A (en) * 1986-12-17 1994-11-08 Viscosuisse S.A. Process of making polyurethane elastomer thread

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788365A (en) * 1971-05-26 1974-01-29 Johnson & Johnson Narrow elastic fabric for use as waistband in articles of apparel
IT966171B (en) * 1971-10-04 1974-02-11 Johnson & Johnson ENHANCEMENT IN ELASTIC FABRICS WITH BANDS FOR BELTS AND SIMILAR
US3983687A (en) * 1972-04-10 1976-10-05 Courtaulds Limited Method of producing covered elastic yarn
US4228639A (en) * 1978-07-19 1980-10-21 James Mackie & Sons Limited Production of yarn
IT201800002808A1 (en) * 2018-02-19 2019-08-19 Paolo Benelli Improved stretch yarns based on linen, or hemp or other materials, and stretch fabrics produced with these yarns

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115745A (en) * 1962-06-13 1963-12-31 Chadbourn Gotham Inc Method of drawing, covering and stabilizing synthetic elastomeric yarn
US3243950A (en) * 1963-11-27 1966-04-05 Monsanto Co Method of making elastic core yarns
US3387448A (en) * 1963-12-30 1968-06-11 Chadbourn Gotham Inc Stretched and stabilized yarns and fabrics
US3342028A (en) * 1965-04-21 1967-09-19 Kurashiki Rayon Co Method of producing an elastic core yarn
US3349458A (en) * 1965-10-14 1967-10-31 Du Pont Process for producing an elastic fabric
US3357076A (en) * 1965-12-27 1967-12-12 Celanese Corp Yarn and fabrics having stretch properties
US3387451A (en) * 1967-02-27 1968-06-11 Chadbourn Gotham Inc Covered stretch yarn and method for producing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362433A (en) * 1986-12-17 1994-11-08 Viscosuisse S.A. Process of making polyurethane elastomer thread

Also Published As

Publication number Publication date
SE342264B (en) 1972-01-31
IE32842B1 (en) 1973-12-28
IE32842L (en) 1969-07-30
IL31407A0 (en) 1969-03-27
NL6900357A (en) 1969-08-01
AT313462B (en) 1974-02-25
US3527045A (en) 1970-09-08
ES362928A1 (en) 1970-11-16
RO56655A (en) 1974-06-01
BE727558A (en) 1969-07-01
FR2000960A1 (en) 1969-09-19
IL31407A (en) 1972-04-27
CH487277A (en) 1970-03-15
DE1901204A1 (en) 1969-08-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee