US2847703A - Apparatus for producing varying denier filaments - Google Patents

Apparatus for producing varying denier filaments Download PDF

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Publication number
US2847703A
US2847703A US451866A US45186654A US2847703A US 2847703 A US2847703 A US 2847703A US 451866 A US451866 A US 451866A US 45186654 A US45186654 A US 45186654A US 2847703 A US2847703 A US 2847703A
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US
United States
Prior art keywords
thread
rollers
roller
denier
nip
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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 - Lifetime
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US451866A
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English (en)
Inventor
Schrenk Hans Alwin
Pieter Van Dijk
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Akzona Inc
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American Enka Corp
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Publication date
Application filed by American Enka Corp filed Critical American Enka Corp
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Publication of US2847703A publication Critical patent/US2847703A/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length

Definitions

  • the present invention relates to the production of variable denier rayon, and more particularly to a process and apparatus for producing a viscose thread of varying denier, wherein the thread is intermittently drawn and collected under diiferent degrees of tension and stretch.
  • the objections to the process of the British Patent and other known prior art are overcome by the simple expedient of passing a freshly spun viscose thread through two nip rollers in a straight line normal to the axes of the rollers.
  • One of the rollers is slotted or recessed so that the thread is intermittently nipped and intermittently allowed to pass freely to a collecting device rotating at a higher peripheral speed than the nipping rollers.
  • the tension changes are abrupt and revert to the spinneret so that the transition period is instantaneous and results in a thread having abrupt differences in denier to thereby simulate shantung to a high degree.
  • This invention also contemplates a loop forming device disposed between the nip rollers and collecting device in order to form a thread reserve while it is running freely between the nip rollers, which reserve is taken up during the nipping period.
  • Another object of this invention is to provide means between the nip'rollers and the collecting device to prevent tension variations in the threads.
  • Figure 1 is a diagrammatic side view of the apparatus 7 according to this invention.
  • Figure 2 is a top plan view of the nip rollers.
  • the thread 1 is drawn from a spinneret 2 through a spinbath 3. It is passed between nip rollers 4 and 5.
  • the roller 4 is freely rotatable and is driven frictionally from roller 5 which is positively driven.
  • the roller 5 is provided with slots or recesses 6, so that thread 1 is intermittently held by the rollers 4 and 5 during passage therethrough.
  • the recesses 6 do not extend the entire length of roller 5, in order for roller 5 near its hub section to frictionally engage roller 4 at all times, (see Figure 2).
  • roller thread 1 After the thread passes through the nip rollers, it is guided around thread driven, freely rotatable rollers 7, 8 and 9 and thereby forms a loop in its passage. From roller thread 1 is led to a collecting device 10, or if it is desired to collect the thread in a centrifugal bucket, a transport roller can be substituted for collection device 10 and interposed in advance of the centrifugal bucket (not shown).
  • rollers 7 and 9 are in a fixed position and in such a relation to the nip rollers and collecting device that the thread passes in a straight line from the spinneret 2 to roller 7, and in the same straight line direction from roller 9 to the collecting device
  • the loop-forming roller 8 is connected to and supported from a toggle joint lever system 11, which in turn is connected to weight 12 so that roller 8 is biased in a left hand direction when viewed in Figure 1, and accordingly moves in a direction to lengthen the loop when the thread passes freely through rollers 4 and 5.
  • Roller 4 may be mounted in a movable support so that during threading-in it may be lifted and as soon as the thread has been passed to the collecting device it may be lowered into contact with driving roller 5.
  • the proper pressure between rollers 4 and 5 may be achieved by means of a spring construction or by the weight of the movable roller.
  • a shaft may be mounted across the entire length of the machine above the spinbath, and as many rollers as there are spinning points may be mounted thereon.
  • the shaft is driven from one side of the spinning machine by means of, e. g., PIV or stepless drive.
  • PIV or stepless drive.
  • the rollers may be adjusted to any desired circumferential speed.
  • a Wormwheel-driven cam arrangement to thereby change the adjustment of the PIV gradually and periodically and thus change the circumferential velocity of the driven rollers in order to impart any desired degree ofirregularity to the thick-and-thin lengths of thethread.
  • the roller 5 is shown having two recesses 6, although in some cases, one may sufiice and in other cases, more tact ofthe thread with the rollers. This accentuates the irregularities and-the lengths of the thick and-thin thread portions.
  • either one or both of the niprollers may be roughened or coated with substances to improve the ad-" is'passing-freely' between the rollers and being drawndirectlyfrom the collecting-device:
  • the thick' places in the threadoriginate between the spinneret and nip rollersduring the periodof'tirne that the'nip rollers are in -engagement with the thread During the time the thread-' passestreely through-the nip-rollers out of contact with them, a-thinpl-ace-is formed at thespinneret where the filaments are in their nascent state.
  • the coagulating bath that is used in the process - is a.
  • salts such -as magnesium sulphate and/or ammonium sulphate, and/or -zinc sulphate.
  • the nip rollers are normally driven in a directionto draw-thethread from the bath in thesame-direction as the collecting device, although at a-lower rate.
  • the nip rollers maybe driven in the op p0 site direction, which would have the effect-of a-backward movement of the thread directed to the spinneret.
  • the thread can be in -con tact with the nip rollers only for a very short time.
  • the conveying-speed of the nip rollers is generally only 30%" to- 40%, or evenless of the speed of the collecting device.
  • the denier of the thick portions of the thread are two, three,-four, or even more, time 'the denier of the thin portions.v
  • Example. 1- A normally matured viscose. wa .prepared'having.7%1
  • recessed roller having a diameter of 3 cm. and provided:
  • Example 2 The same generalapparatus was used-as in Example 1,
  • each of the thread contacting surfaces had a length of 0.9 cm. with distances of 2.0 cm. and 1. 7 cm. between them.
  • the nip rollers were rotated in the opposite direction, i. e., directing the thread toward the spinneret.
  • the conveying speed of the nip rollers was 6:3 'IIL/IIlill'. and .a spinneret having .76 orifices (each orifice microns) was used.
  • the thread was collected at 68.5 m./rnin. and a thread. was obtained having. an average. denierof 220.
  • the thick-and-thin portions of the thread had a length. of 4 cm. and 23 cm., respectively, with corresponding deniers of 660 and 158.
  • Apparatus for-the production of variable denier. rayon which comprises means for extruding a spinning. solution to form thread, means for coagulating the thread andmeans forcollecting the. same, a pair of rollers ,in--
  • rollers being positively driven whereby when a thread is p assed in av straight line, therebetween, it is in alternate engagement. with the saidrollcrs and in alternate free. flight therebetween, said-rollers being driven at a lower;
  • variable. denierrayon. which comprises means. for extruding'a spinning solution to form thread, means for coagulating the thread.
  • rollers in frictional engagement disposed between the extrusion. means. and collecting means, ,one of said rollers being:
  • rollers being positively driven whereby when a thread ispassed in a straight line therebetween, it is in alternate.
  • viscosethread wherein means are provided for extruding a viscose solution through spinnerets into an acid coag1 1-.
  • the improvement which comprises a pair of rollers inrfrictional driving engagement, one of said rollers being.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Materials For Medical Uses (AREA)
US451866A 1953-09-04 1954-08-24 Apparatus for producing varying denier filaments Expired - Lifetime US2847703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL324628X 1953-09-04

Publications (1)

Publication Number Publication Date
US2847703A true US2847703A (en) 1958-08-19

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ID=19784123

Family Applications (1)

Application Number Title Priority Date Filing Date
US451866A Expired - Lifetime US2847703A (en) 1953-09-04 1954-08-24 Apparatus for producing varying denier filaments

Country Status (7)

Country Link
US (1) US2847703A (en, 2012)
BE (1) BE530111A (en, 2012)
CH (1) CH324628A (en, 2012)
DE (1) DE1166971B (en, 2012)
FR (1) FR1114353A (en, 2012)
GB (1) GB758064A (en, 2012)
NL (1) NL78873C (en, 2012)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990575A (en) * 1955-09-30 1961-07-04 British Celanese Apparatus for production of varying denier filaments
US3364293A (en) * 1963-04-24 1968-01-16 British Nylon Spinners Ltd Method of preventing knot breakage during drawing of yarn
US3528235A (en) * 1968-02-23 1970-09-15 Joseph Fitton Apparatus for processing elongated filaments
US4044089A (en) * 1976-05-13 1977-08-23 E. I. Du Pont De Nemours And Company Process and apparatus for producing thick and thin filaments
US4112561A (en) * 1977-02-24 1978-09-12 Champion International Corporation Apparatus for manufacturing filaments of varying denier and actuating means therefor
US4163370A (en) * 1977-11-21 1979-08-07 Corning Glass Works Controlling the drawing rollers to produce diameter perturbations in an optical waveguide
US4214508A (en) * 1977-10-13 1980-07-29 Philip Morris Incorporated Method and apparatus for making cigarette filters of filamentary material
US4609336A (en) * 1984-10-17 1986-09-02 Gencorp Inc. Apparatus and method for extrusion
US4684359A (en) * 1985-10-18 1987-08-04 Mobil Oil Corporation Movable clamp orienter for draw tape
US5156788A (en) * 1989-11-14 1992-10-20 United States Surgical Corporation Method and apparatus for heat tipping sutures
US5250247A (en) * 1989-11-14 1993-10-05 United States Surgical Corporation Method and apparatus for heat tipping sutures
EP0837166A1 (de) * 1996-10-02 1998-04-22 Zinser Textilmaschinen GmbH Verfahren und Vorrichtung zum Herstellen eines Effektgarnes aus einem endlosen, synthetischen Filamentgarn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529315C2 (de) * 1995-08-09 1997-07-31 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zum Herstellen von Dickstellen und/oder Farbeffekten in einem Filamentgarn

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR748680A (fr) * 1932-03-31 1933-07-07 Soie Artificielle D Argenteuil Procédé de fabrication de fil flammé en soie artificielle
US2038722A (en) * 1928-09-13 1936-04-28 Celanese Corp Production of textile materials
US2045530A (en) * 1932-01-14 1936-06-23 Skenandoa Rayon Corp Method and apparatus for manufacturing artificial silk
US2220403A (en) * 1937-07-28 1940-11-05 American Enka Corp Apparatus for production of artificial filaments
US2272666A (en) * 1937-10-23 1942-02-10 Du Pont Process of dry spinning artificial thread
US2276999A (en) * 1937-02-05 1942-03-17 North American Rayon Corp Apparatus for variation of denier
US2296394A (en) * 1940-11-22 1942-09-22 Du Pont Manufacture of novelty artificial yarn
US2433325A (en) * 1942-08-19 1947-12-23 Extruded Plastics Inc Extruded resinous bristles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL54518C (en, 2012) * 1939-07-24
GB554203A (en) * 1941-12-22 1943-06-24 British Nylon Spinners Ltd Improvements in and relating to the production of artificial filaments, yarns or threads
US2455530A (en) * 1944-05-10 1948-12-07 American Viscose Corp Apparatus for the production of artificial filaments

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038722A (en) * 1928-09-13 1936-04-28 Celanese Corp Production of textile materials
US2045530A (en) * 1932-01-14 1936-06-23 Skenandoa Rayon Corp Method and apparatus for manufacturing artificial silk
FR748680A (fr) * 1932-03-31 1933-07-07 Soie Artificielle D Argenteuil Procédé de fabrication de fil flammé en soie artificielle
US2276999A (en) * 1937-02-05 1942-03-17 North American Rayon Corp Apparatus for variation of denier
US2220403A (en) * 1937-07-28 1940-11-05 American Enka Corp Apparatus for production of artificial filaments
US2272666A (en) * 1937-10-23 1942-02-10 Du Pont Process of dry spinning artificial thread
US2296394A (en) * 1940-11-22 1942-09-22 Du Pont Manufacture of novelty artificial yarn
US2433325A (en) * 1942-08-19 1947-12-23 Extruded Plastics Inc Extruded resinous bristles

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990575A (en) * 1955-09-30 1961-07-04 British Celanese Apparatus for production of varying denier filaments
US3364293A (en) * 1963-04-24 1968-01-16 British Nylon Spinners Ltd Method of preventing knot breakage during drawing of yarn
US3528235A (en) * 1968-02-23 1970-09-15 Joseph Fitton Apparatus for processing elongated filaments
US4044089A (en) * 1976-05-13 1977-08-23 E. I. Du Pont De Nemours And Company Process and apparatus for producing thick and thin filaments
US4112561A (en) * 1977-02-24 1978-09-12 Champion International Corporation Apparatus for manufacturing filaments of varying denier and actuating means therefor
US4214508A (en) * 1977-10-13 1980-07-29 Philip Morris Incorporated Method and apparatus for making cigarette filters of filamentary material
US4163370A (en) * 1977-11-21 1979-08-07 Corning Glass Works Controlling the drawing rollers to produce diameter perturbations in an optical waveguide
US4609336A (en) * 1984-10-17 1986-09-02 Gencorp Inc. Apparatus and method for extrusion
US4684359A (en) * 1985-10-18 1987-08-04 Mobil Oil Corporation Movable clamp orienter for draw tape
US5156788A (en) * 1989-11-14 1992-10-20 United States Surgical Corporation Method and apparatus for heat tipping sutures
US5250247A (en) * 1989-11-14 1993-10-05 United States Surgical Corporation Method and apparatus for heat tipping sutures
US5374278A (en) * 1989-11-14 1994-12-20 United States Surgical Corporation Method and apparatus for heat tipping sutures
EP0837166A1 (de) * 1996-10-02 1998-04-22 Zinser Textilmaschinen GmbH Verfahren und Vorrichtung zum Herstellen eines Effektgarnes aus einem endlosen, synthetischen Filamentgarn

Also Published As

Publication number Publication date
CH324628A (de) 1957-10-15
GB758064A (en) 1956-09-26
NL78873C (en, 2012)
FR1114353A (fr) 1956-04-11
DE1166971B (de) 1964-04-02
BE530111A (en, 2012)

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