US3646747A - False twisted ribbons - Google Patents

False twisted ribbons Download PDF

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Publication number
US3646747A
US3646747A US846711A US3646747DA US3646747A US 3646747 A US3646747 A US 3646747A US 846711 A US846711 A US 846711A US 3646747D A US3646747D A US 3646747DA US 3646747 A US3646747 A US 3646747A
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United States
Prior art keywords
ribbon
false
percent
denier
false twisted
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Expired - Lifetime
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US846711A
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English (en)
Inventor
Alfred J Strohmaier
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
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    • 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
    • D02G1/0286—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 characterised by the use of certain filaments, fibres or yarns

Definitions

  • the present invention relates to certain false twisted ribbons and to the process of producing such ribbons.
  • FIG. 4 is a plan view of a false twisted ribbon.
  • FIG. is a plan view of another false twisted ribbon.
  • the ribbon I is fed from supply package 2 to disk tensioners 3 and 4 to feed rods 5 and 6 across heated
  • false twisted yarns have been prod d accord 5 metal plate 7 through twisting spindle 8 through traverse 9 and ing to the techniques set forth in US. Pat. No. 3,279,164 is- 5 by z g f f" by E Sued Bree iii fiirliel s' ieiis bi rne23 iiiil sn'riilfe'r'r iiis 8231 SUMMARY OF THE INVENTION stant, are normally used in the performance of this invention.
  • the present invention involves running a ribbon through a 10 Due 10 their COmPIeX nature, and Since the il of h mechanical false twisting apparatus run t a l tivel l drives are not part of this invention, such a drive is not shown speed and the resultant product which is afolded ribbon havhefe- Spindle 8 is driven y p y-
  • Spindle 8 is ing substantially straight sides with twist appearing striations drive" at a speed of from 10,000 to 500900 -P- -r and on h rfa fth ibb preferably from 34,000 to 142,000 rpm
  • the ribbon is Preferred ribbons are from 100 to 2,000 denier and have a 1 fed at from 30 to 300 yards p minute to Provide to 50 i h off om 1() to 200 1 turns per inch of twist.
  • the false twisting spindle 8 is shown in The process of this invention is useful for treating ribbons of greater detail in the ribbon is pp once any natural or synthetic filamentary material with the around -P as it P through Spmdle synthetic thermoplastic resins such as polyamides, polyesters DESCRIPTION OF THE PREFERRED EMBODIMENTS and polymers of acrylonitrile being preferred. Suitable polymers can be found among the fiber forming polyamides A Superloft No. 550 machine in Example 1-10 and a and polyesters which are described in U.S. Pat. Nos. Superloft"No. 552 machine in Example 11 is set up asshown 2,071,250; 2,071,253; 2,130,523; 2,130,948; 2,190,770 and in FIG. 1.
  • the preferred group of polyamides comprises such resultant product are reported in Table I.
  • polymers as poly(hexamethylene adipamide), poly(hexl-10 the ribbons were formed of a copolymer of 90 mole peramethylene sebacamide), poly(epsilon caprolactam), and the cent hexamethylene diamine and adipic acid and 10 mole percopolymers thereof.
  • cent caprolactam commonly referred to as a 90/ 10 66/6 poly( ethylene terephthalate) and the corresponding copolyamide, which ribbons were 1 mil thick and of the width copolymers containing sebacic acid, adipic acid, or isophthalrequired to correspond to the denier indicated in Table I.
  • the ribbon was 150 gauge by 1/64 inch wide Luderived from glycols with more than two carbon atoms such as rex MM blue which is a ribbon 1.5 mils in thickness made diethylene glycol, butylene glycol and decamethylene glycol. from metallized polyethylene terephthalate.
  • the copolymers of hexamethylene diamine nd il n caprolacfalse twisted product was a somewhat flattened hollow tube tam containing from 75 to 95 er t h thyl di i with embossed striations to give the appearance of a twist as and from 25 to 5 percent epsilon caprolactam are especially Shown in FIG. 4.
  • higher numbers of nominal twists per preferred. 7 A W V inch were used, it was necessary to apply tension to avoid ob-
  • the false twisting of the present invention is carried out by taining a product which is a hollow tube with definite alternatfeeding the ribbon from whatever it is stored on, such as a ing Sand Z" twists.
  • the takeup means from 10 to 200 mils wide, to a temperature from 15 to 85 C. should be driven at speed within from 1 0 percent to +10 perbelow its crystalline melting point, (b) feeding the heated ribcent of the speed of the ribbon feeding means.
  • the ribbon may bon at from 30 to 300 yards per minute around a pin mounted be heated to the desired temperature passing it over a heated in a rotating false twisting spindle operated at from 10,000 to metal plate or roll, passing it through a heated bath of liquid 500,000 revolutions per minute and (0) taking up the resulting such as water or oil or blowing a hot gas such as air on the ribfalse twisted ribbon on a takeup means whereby to produce a bon or by radiation. Due to the speed with which the ribbon is ribbon which is folded upon itself without any substantial passed over the plate, the plate is maintained at a temperature twisting. considerably higher than the temperature to which it is desired 2. The process of claim I wherein there is an overfeed from to heat the ribbon.
  • FIG. I is a schematic drawing of the essential elements of of a flattened hollow tube having substantially straight sides the false twisting apparatus.
  • FIG. 2 is a perspective view of the false twisting spindle used in the apparatus of FIG. 1.
  • FIG. 3 is a cross section taken on line 3-3 of FIG. 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US846711A 1969-08-01 1969-08-01 False twisted ribbons Expired - Lifetime US3646747A (en)

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Application Number Priority Date Filing Date Title
US84671169A 1969-08-01 1969-08-01

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US3646747A true US3646747A (en) 1972-03-07

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US (1) US3646747A (fr)
BE (1) BE754196A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031692A (en) * 1972-07-26 1977-06-28 Fiber Industries, Inc. Novel hosiery yarn
US4773206A (en) * 1983-12-07 1988-09-27 Toray Industries, Inc. False-twist textured yarn of polyamide and method and apparatus for producing the same
WO1996041714A1 (fr) * 1995-06-10 1996-12-27 J. & P. Coats, Limited Matiere de fil
US20110115221A1 (en) * 2009-11-17 2011-05-19 Charlotte Kaplan Decorative knot sequence and method for its formation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053038A (en) * 1957-12-06 1962-09-11 Heberlein Patent Corp Method and apparatus for texturing yarns
US3112600A (en) * 1961-11-02 1963-12-03 Leesona Corp Method and apparatus for processing yarns
US3126699A (en) * 1962-10-09 1964-03-31 Process for preparing
GB960067A (en) * 1960-05-19 1964-06-10 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross-section and product
US3194716A (en) * 1960-06-29 1965-07-13 Dow Chemical Co Filamentary microtapes
US3500626A (en) * 1964-07-01 1970-03-17 Ici Ltd Process for treatment of molecularly oriented crystalline organic polymeric material
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053038A (en) * 1957-12-06 1962-09-11 Heberlein Patent Corp Method and apparatus for texturing yarns
GB960067A (en) * 1960-05-19 1964-06-10 Dow Chemical Co Process for preparing filamentary microtapes of labyrinthian cross-section and product
US3194716A (en) * 1960-06-29 1965-07-13 Dow Chemical Co Filamentary microtapes
US3112600A (en) * 1961-11-02 1963-12-03 Leesona Corp Method and apparatus for processing yarns
US3126699A (en) * 1962-10-09 1964-03-31 Process for preparing
US3500626A (en) * 1964-07-01 1970-03-17 Ici Ltd Process for treatment of molecularly oriented crystalline organic polymeric material
US3503106A (en) * 1968-06-27 1970-03-31 Avisun Corp Continuous techniques for making flat woven synthetic fabrics

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031692A (en) * 1972-07-26 1977-06-28 Fiber Industries, Inc. Novel hosiery yarn
US4773206A (en) * 1983-12-07 1988-09-27 Toray Industries, Inc. False-twist textured yarn of polyamide and method and apparatus for producing the same
WO1996041714A1 (fr) * 1995-06-10 1996-12-27 J. & P. Coats, Limited Matiere de fil
US20110115221A1 (en) * 2009-11-17 2011-05-19 Charlotte Kaplan Decorative knot sequence and method for its formation

Also Published As

Publication number Publication date
BE754196A (fr) 1970-12-31

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