GB1406421A - Production of bulked yarn - Google Patents

Production of bulked yarn

Info

Publication number
GB1406421A
GB1406421A GB922671A GB922671A GB1406421A GB 1406421 A GB1406421 A GB 1406421A GB 922671 A GB922671 A GB 922671A GB 922671 A GB922671 A GB 922671A GB 1406421 A GB1406421 A GB 1406421A
Authority
GB
United Kingdom
Prior art keywords
yarn
false twist
bulked
rolls
draw
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
GB922671A
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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB922671A priority Critical patent/GB1406421A/en
Priority to SE7213176A priority patent/SE392135B/en
Priority to IL40558A priority patent/IL40558A/en
Priority to AT878672A priority patent/AT328062B/en
Publication of GB1406421A publication Critical patent/GB1406421A/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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/022—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting while simultaneously drawing the yarn

Landscapes

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

Abstract

1406421 Bulked polyester yarn IMPERIAL CHEMICAL INDUSTRIES LTD 4 Oct 1972 [13 Oct 1971] 9226/71 Heading D1F In a process for producing a bulked synthetic polyester yarn in which yarn in a drawable state is fed by feed rolls via heating means and false twist means to draw rolls which are rotated at a peripheral speed higher than that of the feed rolls by an amount equivalent to the desired draw ratio of the yarn, the yarn in its passage from the false twist means to the draw rolls is made to contact one or more stationary guide surfaces making a total wrap angle of 5‹ to 30‹ therewith. The wrap angle is preferably from 10‹ to 25‹. The linear speed of the yarn at the draw rolls is greater than 70 m/minute. In a preferred embodiment, the yarn is heated in a longitudinally contracted state subsequent to the above process either before or after wind-up. The false twist means may be a false twist spindle or a friction twisting means, and the guide surface in the form of a solid cylindrical pin, preferably ceramic, is positioned within 1 cm of the yarn exit from the false twist means. The presence of the stationary guide surface is said to reduce the number of filament breaks and filament loops within the bulked polyester yarn. Numerical examples are given.
GB922671A 1971-10-13 1971-10-13 Production of bulked yarn Expired GB1406421A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB922671A GB1406421A (en) 1971-10-13 1971-10-13 Production of bulked yarn
SE7213176A SE392135B (en) 1971-10-13 1972-10-12 METHOD AND DEVICE FOR THE MANUFACTURE OF VOLUMINOST SYNTHETIC POLYESTER YARN
IL40558A IL40558A (en) 1971-10-13 1972-10-12 Process and apparatus for producing bulked polyester yarn
AT878672A AT328062B (en) 1971-10-13 1972-10-13 METHOD AND DEVICE FOR MANUFACTURING A VOLUMINOUS SYNTHETIC YARN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB922671A GB1406421A (en) 1971-10-13 1971-10-13 Production of bulked yarn

Publications (1)

Publication Number Publication Date
GB1406421A true GB1406421A (en) 1975-09-17

Family

ID=9867847

Family Applications (1)

Application Number Title Priority Date Filing Date
GB922671A Expired GB1406421A (en) 1971-10-13 1971-10-13 Production of bulked yarn

Country Status (4)

Country Link
AT (1) AT328062B (en)
GB (1) GB1406421A (en)
IL (1) IL40558A (en)
SE (1) SE392135B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052678A1 (en) * 1980-11-21 1982-06-02 Toray Industries, Inc. A process for manufacturing a textured multifilament yarn having alternating twists

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052678A1 (en) * 1980-11-21 1982-06-02 Toray Industries, Inc. A process for manufacturing a textured multifilament yarn having alternating twists

Also Published As

Publication number Publication date
IL40558A (en) 1976-01-30
AT328062B (en) 1976-03-10
ATA878672A (en) 1975-05-15
SE392135B (en) 1977-03-14
IL40558A0 (en) 1972-12-29

Similar Documents

Publication Publication Date Title
GB1300241A (en) Production of composite yarn
US2999351A (en) Bulky yarn
GB1350588A (en) Method and apparatus for processing yarn
GB1436748A (en) Production of textured yarns
ES406061A1 (en) Procedure for preparation of a texturized thread. (Machine-translation by Google Translate, not legally binding)
GB1406421A (en) Production of bulked yarn
GB1357139A (en) Torque controlled voluminous set yarns
US3729916A (en) Method for treating yarn
US3383850A (en) Method for fixing one or more previously twisted or coiled yarns or the like during unwinding thereof, particularly applicable to alteration of textureized yarn
GB1454522A (en) Bulked polyester textile yarns
GB1263055A (en) Improvements in or relating to the production of bulked yarns
GB1368317A (en) Bulk yarn and process and device for obtaining this yarn
US2741893A (en) Method and apparatus for producing crinkled yarn
GB1379468A (en) Method of manufacturing fancy yarns
ES382118A1 (en) Apparatus for producing synthetic torque yarns
GB755580A (en) Improved process for the production of voluminous yarn
GB1374980A (en) Apparatus and process for producing twist in textile yarns
ES408714A1 (en) Production of texturised yarn
US3721082A (en) Process for making textured threads without twist recovery or untwisting
GB1441923A (en) Variable knop yarns and methods for their manufacture
GB1374173A (en) Method for producing a crimped yarn
IE35707L (en) Producing crimped yarn
JPS5637321A (en) False twister for production of twisted fancy yarn
GB1379247A (en) Producing slub yarn
GB1347562A (en) Process and an apparatus for the production of synthetic crimped highly elastic continuous yarns

Legal Events

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