FR2175093A1 - False twist bush - having friction surface with shore hardness of greater than thirty at ambient temp - Google Patents

False twist bush - having friction surface with shore hardness of greater than thirty at ambient temp

Info

Publication number
FR2175093A1
FR2175093A1 FR7307984A FR7307984A FR2175093A1 FR 2175093 A1 FR2175093 A1 FR 2175093A1 FR 7307984 A FR7307984 A FR 7307984A FR 7307984 A FR7307984 A FR 7307984A FR 2175093 A1 FR2175093 A1 FR 2175093A1
Authority
FR
France
Prior art keywords
friction surface
yarn
bush
false twist
shore hardness
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.)
Granted
Application number
FR7307984A
Other languages
French (fr)
Other versions
FR2175093B1 (en
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
Publication of FR2175093A1 publication Critical patent/FR2175093A1/en
Application granted granted Critical
Publication of FR2175093B1 publication Critical patent/FR2175093B1/fr
Granted 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
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Sliding-Contact Bearings (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

A rotatable metal false twist bush has a friction surface which is contacted by the yarn to impart false twist and which has a max. thickness of 2mm and Shore hardness of >=30, pref. 50-90 at ambient temp. Pref. the friction surface is of polyurethane rubber and the twist bush is used for treating thermoplastic yarn e.g. nylon, polyester. The bush may be in the form of a tube through which the yarn passes or a cup from which the yarn passes on the same side as it enters with the yarn being held into contact with the friction surface by a yarn guide. The friction surface is highly wear resistant and has a longer working life.
FR7307984A 1972-03-07 1973-03-06 False twist bush - having friction surface with shore hardness of greater than thirty at ambient temp Granted FR2175093A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1049873 1972-03-07

Publications (2)

Publication Number Publication Date
FR2175093A1 true FR2175093A1 (en) 1973-10-19
FR2175093B1 FR2175093B1 (en) 1977-08-12

Family

ID=9968960

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7307984A Granted FR2175093A1 (en) 1972-03-07 1973-03-06 False twist bush - having friction surface with shore hardness of greater than thirty at ambient temp

Country Status (1)

Country Link
FR (1) FR2175093A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854780A (en) * 1957-06-11 1960-11-23 Scragg & Sons Improvements in and relating to apparatus for twisting yarn
FR1568036A (en) * 1968-01-05 1969-05-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB854780A (en) * 1957-06-11 1960-11-23 Scragg & Sons Improvements in and relating to apparatus for twisting yarn
FR1568036A (en) * 1968-01-05 1969-05-23

Also Published As

Publication number Publication date
FR2175093B1 (en) 1977-08-12

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Legal Events

Date Code Title Description
ST Notification of lapse