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US2829027A - Dry spinning process for making y-shaped filaments - Google Patents

Dry spinning process for making y-shaped filaments Download PDF

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Publication number
US2829027A
US2829027A US400564A US40056453A US2829027A US 2829027 A US2829027 A US 2829027A US 400564 A US400564 A US 400564A US 40056453 A US40056453 A US 40056453A US 2829027 A US2829027 A US 2829027A
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United States
Prior art keywords
filaments
section
cross
spinnerette
fibers
Prior art date
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Expired - Lifetime
Application number
US400564A
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English (en)
Inventor
David W Raynolds
Frank W Abernathy
Arthur S Smith
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Eastman Kodak Co
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Eastman Kodak Co
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
Priority to BE562946D priority Critical patent/BE562946A/xx
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US400564A priority patent/US2829027A/en
Priority to FR1192310D priority patent/FR1192310A/fr
Priority to CH349025D priority patent/CH349025A/fr
Application granted granted Critical
Publication of US2829027A publication Critical patent/US2829027A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D01D5/04—Dry spinning methods
    • 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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process

Definitions

  • This invention relates to the preparation of synthetic filaments and fibers of increased bulk and stiffness as Well as increased luster and covering power. larly this invention relates to improved dry spinning methods and apparatus for producing from cellulose ester spinning solutions filaments and fibers of a Y-shaped cross-section having such improved characteristics. Furthermore this invention also relates to fabrics and other articles of manufacture made of, or containing such novel Y-shaped cross-section filaments and fibers.
  • I-beam type cross-section filaments or fibers having a high degree of resiliency and crush resistance may be produced by extruding a suitable cellulose ester solution through a spinnerette having rectangular orifices, the ratio of the length to the width of each rectangular orifice being between 1.35 and 1.65. Fibers made from such l-beam filaments are particularly useful for manufacturing carpet materials, as well as for the manufacture of rugging and other pile fabrics. However, the ends of the I-beam are of a round shape and do not extend substantially above the fiat section of the I-beam.
  • An object, therefore, of the present invention is to provide a process for preparing filaments and fibers with an increased bulk and stiffness as compared to the above discussed prior art fibers of equivalent denier and chemical composition.
  • Another object of this invention is to provide'a process for preparing filaments and fibers of increased surface area as compared to the above discussed fibers known heretofore in the art to which this invention relates.
  • Still another object of this invention is to provide synthetic filaments and fibers of Y-shaped cross-section of the nature hereinafter described.
  • a further object of this invention is the preparation of the desired filaments and fibers from spinnerette orifices of a simplified design that can be easily and accurately manufactured.
  • Yet another object of this invention is to provide a spinnerette having extrusion orifices therein of equilateral triangular shapes.
  • Another object is to provide staple fibers made from a plurality of filaments having Y-shaped cross-sections.
  • Another object is to provide new and novel fabrics having a crisp feel, improved covering power and luster containing such Y-shaped cross-section filaments or staple fibers.
  • Still another is to provide a novel filling material of increased resistance to matting which is suitable to employ in pillows and the like.
  • Yet another object of this invention is to provide fibers adaptable for use in manufacturing cigarette filters.
  • these and other objects may be attained by forcing a suitable spinning solution through a spinnerette having a plurality of equilateral triangular shaped filament forming orifices therein and evaporating the solvent by drying the resulting filaments in a spinning cabinet under carefully controlled conditions of temperature while subjecting the filaments to predetermined drafting.
  • the temperature -face area may be attained by forcing a suitable spinning solution through a spinnerette having a plurality of equilateral triangular shaped filament forming orifices therein and evaporating the solvent by drying the resulting filaments in a spinning cabinet under carefully controlled conditions of temperature while subjecting the filaments to predetermined drafting. The temperature -face area.
  • the spinnerette having the equilateral triangular orifices may be employed with any suitable spinning cabinet such as, for example, one of the form illustrated in U. S. Patents 2,000,047 and 2,000,048 referred to above.
  • the Y-shaped cross-section filaments can be prepared in accordance with our invention within a satisfactory range of spinning, drafting and solution conditions as is described hereinafter.
  • filaments produced in accordance therewith by extruding solutions of cellulose acetate through equilateral triangular orifices have a more perfect Y-shaped cross-section than is obtainable when a spinnerette having Y-shaped cross-section orifices is employed.
  • the filaments generally fall within the above-named prior art classifications and are of a distorted rounded configuration and of non-uniform cross-section. They exhibit none of the desirable properties possessed by our novel filaments.
  • the Y- shaped cross-section filaments and fibers of our invention have much greater bulk and stiffness than similar filaments or fibers of rounded cross-sections heretofore known in this art.
  • These characteristics of our filaments and fibers appear to be due to the intermeshing of the legs of the Y of the individual filaments in the filaments bundlein such manner that each is reinforced by the other and the filament ,bundle has a resultant stiffness greater than that possessed by the normal cross-section fiber of equivalent denier because of the increased sur- It is noted that acircle taking in the three tips of the legs of the Y will be greater in diameter than one taking in the lobes of the well-known clover-leaf type of cross-section. This larger circle" is, therefore, the
  • Figure 1 is a schematic elevational view, partly in section, showing a spinnerette which has equilateral triangular filament forming orifices positioned in a suitable dry spinning cabinet which is equipped with suitable auxiliary apparatus;
  • Figure 2 is a view of the face of a spinnerette showing a plurality of filament forming orifices of equilateral triangular shape
  • Figure 3 is a greatly enlarged representationof the spinning solution coming out of theft'riangular orifices of the spinnerette and forming into the, Yrsl iaped cross-section filaments;
  • Figure 4 is a reproduction of an actual photomicro- 4 graph showing the cross-section of several Y-shaped filaments of the present invention.
  • Figure 5 is a reproduction of an actual photomicrograph showing in cross-section several clover-leaf filaments made by a prior art method.
  • FIG. 1 there is shown schematically a side elevation view, partly in section, of a spinning cabinet ll and its associated apparatus by which the novel Y-shaped synthetic filaments and fibers of the instant invention may be manufactured.
  • a candle filter unit 12 mounted at the top of the cabinet is a candle filter unit 12 to which is connected a spinnerette 13 which in accordance with our invention has a plurality of orifices 14 therein which are of the shape of equilateral triangles.
  • the face of this novel type of spinnerette with the equilateral triangular orifices 14 therein is shown in the greatly enlarged view of Figure 2.
  • the candle filter may be uniformly heated by means of heating coils, not shown, which are positioned so as to surround candle filtcr 12, and through which coils may be circulated any appropriate heat exchange medium such as water maintained at the desired tcmperaturc.
  • Spinning solution of composition described hereinafter is supplied from conduit 16 through valve 17 to pump 18 which forces the solution at the desired rate to the candle filter unit 12, thence to spinnerette 13 through the equilateral triangular orifices 14 from which it is extruded initially in the form of equilateral triangular filaments 25.
  • the filaments 25 pass downwardly in the cabinet 11 while progressively losing solvent by evaporation until, in a substantially solidified condition they leave the cabinet 11 and pass around godet roll 20, which is positioned below the lower end of the spinning cabinet ll.
  • Godet roll 20 is driven at a uniform speed by means, not shown, to give the desired draft to the filaments 25.
  • From godet roll 20 the filaments pass over the usual guide rolls, one of which is shown at 21, and are finally wound onto a bobbin 22 after an appropriate twist has been imparted I thereto, if desired, by means not shown.
  • heated air is supplied to the cabinet 11 by means of inlet conduits 23 and 24 positioned respectively adjacent the lower and upper ends thereof, the air passing through the cabinet and emerging through outlet conduit 26 positioned at a substantial distance below spinnerette 13, as illustrated.
  • Draft ratio may be defined rather broadly as the ratio spinning equipment was employed with the operating of the linear velocity of wind-up of the filaments to the conditions shown as No. 5 in Table I. linear velocity of extrusion of the spinning solution. More specifically, draft ratio maybe defined as the ratio 25 EXAMPLE 6 of the linear velocity at which the filaments are wound onto and off the godet roll of a dry spinning cabinet to the calculated average linear velocity at which the quantity of spinning solution necessary to the formation of any one of the plurality of filaments comprising the bundle of filaments Wound onto and off the godet roll is extruded through any one of the plurality of orifices in the spinnerette employed in the spinning operation, the velocities being expressed in the same units of distance per unit time.
  • the draft is 1.0, thus signifying that the linear speed of windup is 100% of the extrusion speed.
  • the filaments are Wound up or withdrawn from the cabinet at For example, if the filaments are wound the godet roll at a linear speed 50% greater than the speed of extrusion, the draft is 1.5, and so on.
  • EXAMPLE 2 The cellulose acetate spinning'solutionof Example 1 was spun into Y-shaped cross-section filaments of 150 denier per strand.
  • the spinnerette had 38 equilateral triangular orifices.
  • the above described spinning equipment was used with the operating conditions shown as No. 3 in Table I.
  • EXAMPLE 4 A different spinning solution consisting of 30.0% cellulose acetate, 1.75 water and the remainder being acetone solvent was spun into Y-shaped cross-section filaments of 150 denier per strand. The spinnerette had 7'equilateral triangular orifices. The above described spinning equipment was used with the operating conditions shown as No. 4 in Table I.
  • EXAMPLE 7 A spinning solution consisting of 26.5% cellulose acetate, 1.75% water, the remainder being acetone was spun into Y-shaped cross-section filaments of 300 denier per strand.
  • the spinning equipment herein described was employed using a spinnerette having 7 equilateral triangular orifices. Conditions of operation are shown as No. 7 in Table I.
  • Y-shaped cross-section filaments can be prepared under a relatively wide range of spinning and solution conditions.
  • a primary requisite for optimum Y-shaped cross-section yarn is that the spinning draft should be above 1.0 and preferably above 1.2.
  • somewhat deformed Y-shaped cross-section filaments may be obtained using spinning drafts of 0.7 to 1.0. But as indicated above, for purposes of attaining uniformity of cross-section a draft above 1.0 is preferable.
  • temperatures listed in Table I are temperatures used to produce a quality product with a particular cellulose ester-acetone solution. These temperatures are not too critical and may vary over a substantial range. Changes in cellulose esters and cellulose ester to acetone ratios may require some alterations or changes in these temperatures.
  • 55/ 13/3 and the like represent continuous filament yarn in terms of total denier, filament count, andtwist.
  • 55/ 13/3 designates a continuous filament yarn having a total denier of 55 made up of 13 filaments and having 0.3 turn per inch of twist.
  • the denier per filament of such a yarn is the total denier divided by the number of filaments.
  • 55 divided by 13 equals approximately 4 denier per filament.
  • the specific volume is determined by converting the weight of yarn on the spool to cubic inches per pound-
  • the column shown as percent difference expresses as a percentage, the percentage difference between the bulk factor, or the specific volume, in the regular and Y section yarn; It will be noted that in continuous filament yarn the Y-shaped yarn has from 29.6 to 41.0% more bulk than regular yarn. This difference can be seen visually when comparing the skcins from which these data were obtained.
  • the luster of the Y-shaped cross-section yarn is appreciably greater than that of the regular or clover-leaf cross-section of equivalent denier and composition. Luster is measured by means of a photo-electric cell. The filaments are wound in a. parallel manner around a flat piece of cardboard or other similar flat surface. Light refiected off these panels to the photoelectric cell imparts a potential which is translated into a numerical luster level. On comparative tests the clover-leaf panel of filaments record 0.77 volt whereas the Y cross-section filaments of the same denier record 0.83 volt.
  • EXAMPLE 8 Staple fibers made from Y-shaped cross-section cellulose acetate yarn were employed as a filling material in a pillow. Because of their bulk they were found to be satisfactory for this purpose. A similar sized pillow containing the same weight of cellulose acetate staple fibers of equivalent denier of regular cross-section evidenced less bulk and did not resist matting under pressure.
  • Cigarette filters were prepared from Y-shaped crosssection cellulose acetate fibers. Their interesting bulk and stiffness properties permit the construction of filters of interesting design.
  • yarns composed of Y-section filaments are much stiffer and more resilient than yarns having normal or clover-leaf cross-sections.
  • the effect on stiffness of cross sectional shape can beestimated by comparing moments of inertia of fibers having different shapes but the same cross sectional area.
  • Y-section filaments are approximately 60% stiffer than normal filaments of equal size.
  • a greatly increased resilience or stiffness is noted which ismore than would be expected from the increase in stiffness of individual fibers.
  • cellulose acetate fibers of the Y-shaped cross-section are such that they offer numerous desirable properties in both woven and knitted fabrics.
  • the Y-shaped section fibers produce fabrics having desirable crispness and stiffness which are usually obtained only by special processing techniques or by special finishing
  • fiat fabrics such as taffetas, twills, and satins
  • the increased bulk of the Y-shaped fibers produce fabrics having greater cover and thickness for a given weight of material.
  • Yarns having a Y cross-section produce fabrics with less tendency for the yarns to slip resulting in higher seam strength. This characteristic is particularly important in certain fabrics, for example, satins and twills. Loom finished taffetas have a crisper feel when made from Y section yarns.
  • Knitted fabrics from yarns with Yshaped sections exhibit increased body and hand which make them more desirable for certain uses such as sport shirts, mens ties, and dress goods.
  • Yarns spun from staple fibers of-Y cross-section exhibit increase in bulk and stiffness as do the filament yarns.
  • fabrics from these yarns have a wool-like feel or hand.
  • fabrics which have been produced from cellulose acetate fibers of the 9 Y-shaped cross-section fabric properties have been obtained which are desirable and which are not obtained in cellulose acetate fibers of regular cross-section.
  • the method of forming cellulose organic acid ester filaments having a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose organic acid ester filament forming solution through a spinnerette equipped with equilateral triangular extrusion orifices and into a dry spinning cabinet, drafting the filaments at a draft ratio within the range of approximately 0.7 to 1.4 while drying the filaments.
  • the method of forming cellulose organic acid ester filaments with a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose organic acid ester filament forming solution through a spinnerette equipped with equilateral triangular extrusion orifices and into a dry spinning cabinet, drafting the thus formed triangular cross-section filaments at a draft ratio within the range of approximately 1.10 to 1.43 while drying the filaments at an average temperature within the range of 60 C. to 90 C. whereby the cross-section of the filaments is changed to said Y cross-section.
  • the method of forming cellulose acetate filaments with a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose acetate filament forming solution through a spinnerette equipped with equilateral triangular extrusion orifices and into a dry spinning cabinet, drafting the thus formed triangular cross-section filaments at a draft ratio within the range of approximately 1.10 to 1.43 while drying the filaments at an average temperature within the range of 60 C. to 90 C. whereby the cross-section of the filaments is changed to said Y cross-section.
  • the method of forming cellulose acetate filaments with a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose acetate filament forming solution through a spinnerette equipped with equilateral triangular 10 extrusion orifices and into a dry spinning cabinet, drafting the thus formed triangular cross-section filaments at a draft ratio of approximately 1.2 while drying the filaments at an average temperature within the range of C. to C. whereby the cross-section of the filaments is changed to said Y cross-section.
  • the method of forming cellulose acetate filaments with a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose organic acid ester filament forming solution through a spinnerette equipped with equilateral triangular orifices of the same size and into a dry spinning cabinet, drafting the thus formed triangular cross-section filaments at a draft ratio of approximately 1.1 while drying the filaments at an average temperature within the range of 60 C. to 90 C. whereby the cross-section of the filaments is changed to said 'Y cross-section.
  • the method of forming cellulose acetate filaments with a Y-shaped cross-section, the legs of the Y being substantially equal in length and the angles between adjacent legs of the Y being substantially equal which comprises extruding a cellulose acetate filament forming solution through a spinnerette equipped with equilateral triangular orifices of the same size and into a dry spinning cabinet, drafting the thus formed triangular cross section filaments at a draft ratio of approximately 1.4 while drying the filaments at an average temperature within the range of 60 C. to 90 C. whereby the cross-section of the filaments is changed to said Y cross-section.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US400564A 1953-12-28 1953-12-28 Dry spinning process for making y-shaped filaments Expired - Lifetime US2829027A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE562946D BE562946A (fr) 1953-12-28
US400564A US2829027A (en) 1953-12-28 1953-12-28 Dry spinning process for making y-shaped filaments
FR1192310D FR1192310A (fr) 1953-12-28 1957-12-04 Nouveau filament synthétique, appareil et procédé pour sa fabrication et ses applications
CH349025D CH349025A (fr) 1953-12-28 1958-02-19 Procédé de fabrication de filaments en ester de cellulose et filament obtenu au moyen de ce procédé

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US400564A US2829027A (en) 1953-12-28 1953-12-28 Dry spinning process for making y-shaped filaments

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BE (1) BE562946A (fr)
CH (1) CH349025A (fr)
FR (1) FR1192310A (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939201A (en) * 1959-06-24 1960-06-07 Du Pont Trilobal textile filament
US3041915A (en) * 1957-07-27 1962-07-03 Inventa A G Fur Forschung & Pa Process for the manufacture of net-like structures from synthetic fibers
US3077633A (en) * 1958-05-15 1963-02-19 Eastman Kodak Co Apparatus for spinning synthetic filaments and fibers of increased bulk and stiffness
US3092873A (en) * 1958-10-17 1963-06-11 Celanese Corp Spinneret
US3097416A (en) * 1960-09-26 1963-07-16 Du Pont Textile filaments
US3099064A (en) * 1961-04-13 1963-07-30 Eastman Kodak Co Method and apparatus for making rug yarn
US3226795A (en) * 1959-08-12 1966-01-04 Celanese Corp Method for producing a high bulk filamentary material
DE1275428B (de) * 1960-06-17 1968-08-14 Eastman Kodak Co Verfahren zur Herstellung von Tabakrauchfilterelementen
US5269996A (en) * 1992-09-14 1993-12-14 Eastman Kodak Company Process for the production of fine denier cellulose acetate fibers
US5310515A (en) * 1991-10-08 1994-05-10 Reiter Automatik Apparate-Maschinebau Gmbh Process to cool and pelletize molten strands issuing from nozzles
EP0608744A1 (fr) * 1993-01-26 1994-08-03 Rhone-Poulenc Rhodia Aktiengesellschaft Filaments d'acétate de cellulose, solution de filage optiquement isotrope à cet effet et son utilisation pour la fabrication des filaments
WO1999004071A1 (fr) * 1997-07-16 1999-01-28 Rhodia Acetow Gmbh Filaments d'acetate de cellulose a section trilobee
US5947126A (en) * 1997-05-29 1999-09-07 Eastman Chemical Co. Environmentally disintegratable tobacco smoke filter rod
US20080134893A1 (en) * 2006-12-08 2008-06-12 Thauming Kuo Particulate filter media
US20080135060A1 (en) * 2006-12-08 2008-06-12 Thauming Kuo Aldehyde removal
US20080135058A1 (en) * 2006-12-08 2008-06-12 Ted Calvin Germroth Tobacco smoke filter and method for removal of aldehydes from tobacco smoke
WO2012177482A1 (fr) 2011-06-23 2012-12-27 Eastman Chemical Company Filtres à dégradation améliorée et leurs procédés de fabrication
WO2012177483A1 (fr) 2011-06-23 2012-12-27 Eastman Chemical Company Esters de cellulose présentant des particules de dioxyde de titane à phases mixtes à dégradation améliorée
US20140026911A1 (en) * 2012-07-25 2014-01-30 Celanese Acetate Llc Spinneret Comprising Tri-Arc Holes and Tri-Arc Filaments Produced Therefrom
US8790556B2 (en) * 2012-07-25 2014-07-29 Celanese Acetate Llc Process of making tri-arc filaments
JP2019189960A (ja) * 2018-04-20 2019-10-31 株式会社ダイセル 紡糸装置及び紡糸方法
WO2023059851A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Procédé de fabrication de compositions d'ester de cellulose pouvant être traitées à l'état fondu comprenant une charge alcaline
WO2023059853A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Articles contenant des compositions d'ester de cellulose pouvant être traitées par fusion comprenant une biocharge amorphe
WO2023059845A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Articles contenant des compositions d'ester de cellulose pouvant être traitées par fusion comprenant une charge alcaline
WO2023059849A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Procédé de fabrication de compositions d'ester de cellulose pouvant être traitées à l'état fondu comprenant une biocharge amorphe
WO2023059848A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Compositions d'ester de cellulose pouvant être traitées à l'état fondu comprenant une charge alcaline
WO2023059844A1 (fr) 2021-10-08 2023-04-13 Eastman Chemical Company Compositions d'ester de cellulose pouvant être traitées à l'état fondu comprenant une biocharge amorphe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60134012A (ja) * 1983-12-21 1985-07-17 Mitsubishi Rayon Co Ltd Ｙ型断面アセテ−ト繊維紡糸用口金

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US2000047A (en) * 1931-08-29 1935-05-07 Eastman Kodak Co Process of making artificial silk
US2000048A (en) * 1932-09-21 1935-05-07 Eastman Kodak Co Process of making artificial silk
US2013688A (en) * 1929-01-02 1935-09-10 Celanese Corp Apparatus for the manufacture of artificial filaments or the like
US2026730A (en) * 1928-01-23 1936-01-07 Dreyfus Henry Manufacture of artificial filaments or threads
US2313296A (en) * 1936-09-30 1943-03-09 Lamesch Armand Fiber or filament of glass
US2373892A (en) * 1942-12-30 1945-04-17 Eastman Kodak Co Production of resilient filaments and fibers
US2387791A (en) * 1941-06-11 1945-10-30 Du Pont Cellulose acetate yarn and process
US2434533A (en) * 1945-05-24 1948-01-13 Paul D Wurzburger Imitation filaments, ropes, yarns, and the like
US2588583A (en) * 1948-12-18 1952-03-11 Celanese Corp Process for spinning
US2588584A (en) * 1949-11-12 1952-03-11 Celanese Corp Spinning artificial filamentary materials
US2673368A (en) * 1951-05-03 1954-03-30 Celanese Corp Spinnerette
US2677184A (en) * 1950-09-13 1954-05-04 Edwin E Lindenbein Saw attachment

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026730A (en) * 1928-01-23 1936-01-07 Dreyfus Henry Manufacture of artificial filaments or threads
US2013688A (en) * 1929-01-02 1935-09-10 Celanese Corp Apparatus for the manufacture of artificial filaments or the like
US2000047A (en) * 1931-08-29 1935-05-07 Eastman Kodak Co Process of making artificial silk
US2000048A (en) * 1932-09-21 1935-05-07 Eastman Kodak Co Process of making artificial silk
US2313296A (en) * 1936-09-30 1943-03-09 Lamesch Armand Fiber or filament of glass
US2387791A (en) * 1941-06-11 1945-10-30 Du Pont Cellulose acetate yarn and process
US2373892A (en) * 1942-12-30 1945-04-17 Eastman Kodak Co Production of resilient filaments and fibers
US2434533A (en) * 1945-05-24 1948-01-13 Paul D Wurzburger Imitation filaments, ropes, yarns, and the like
US2588583A (en) * 1948-12-18 1952-03-11 Celanese Corp Process for spinning
US2588584A (en) * 1949-11-12 1952-03-11 Celanese Corp Spinning artificial filamentary materials
US2677184A (en) * 1950-09-13 1954-05-04 Edwin E Lindenbein Saw attachment
US2673368A (en) * 1951-05-03 1954-03-30 Celanese Corp Spinnerette

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041915A (en) * 1957-07-27 1962-07-03 Inventa A G Fur Forschung & Pa Process for the manufacture of net-like structures from synthetic fibers
US3077633A (en) * 1958-05-15 1963-02-19 Eastman Kodak Co Apparatus for spinning synthetic filaments and fibers of increased bulk and stiffness
US3092873A (en) * 1958-10-17 1963-06-11 Celanese Corp Spinneret
US2939201A (en) * 1959-06-24 1960-06-07 Du Pont Trilobal textile filament
US3226795A (en) * 1959-08-12 1966-01-04 Celanese Corp Method for producing a high bulk filamentary material
DE1275428B (de) * 1960-06-17 1968-08-14 Eastman Kodak Co Verfahren zur Herstellung von Tabakrauchfilterelementen
US3097416A (en) * 1960-09-26 1963-07-16 Du Pont Textile filaments
US3099064A (en) * 1961-04-13 1963-07-30 Eastman Kodak Co Method and apparatus for making rug yarn
US5310515A (en) * 1991-10-08 1994-05-10 Reiter Automatik Apparate-Maschinebau Gmbh Process to cool and pelletize molten strands issuing from nozzles
US5269996A (en) * 1992-09-14 1993-12-14 Eastman Kodak Company Process for the production of fine denier cellulose acetate fibers
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Publication number Publication date
CH349025A (fr) 1960-09-30
BE562946A (fr)
FR1192310A (fr) 1959-10-26

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