US2932079A - Complex artificial filaments - Google Patents

Complex artificial filaments Download PDF

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Publication number
US2932079A
US2932079A US570250A US57025056A US2932079A US 2932079 A US2932079 A US 2932079A US 570250 A US570250 A US 570250A US 57025056 A US57025056 A US 57025056A US 2932079 A US2932079 A US 2932079A
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United States
Prior art keywords
filaments
spinning
complex
materials
cores
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Expired - Lifetime
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US570250A
Inventor
Dietzsch Hans-Joachim
Dietzsch Otto
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.)
Schiesser AG Germany
Trikotfabriken J Schiesser AG
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Schiesser AG Germany
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Priority to US570250A priority Critical patent/US2932079A/en
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Publication of US2932079A publication Critical patent/US2932079A/en
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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
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/26—Composite fibers made of two or more materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2965—Cellulosic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section

Definitions

  • This invention deals with the improvement of complex artificial filaments comprising two or more longitudinal sections of difierent spinning materials.
  • Such filaments may comprise a hollow gas-filled core or may consist of compound structures of two or more difierent spinning materials joined in centrally symmetrical or non-symmetrical distribution.
  • Such artificial filaments of inhomogeneous material cross-section are known.
  • artificial filaments of composite character comprising at least two basic components one of which is disposed between two portions of the other or others which may cover the lateral surfaces of the former component completely or only partially.
  • Figures la and 1b show configurations of complex filaments made of two difiering spinning materials
  • Figures 2a to 2e show configurations of complex filaments made of three differing spinning materials
  • Figure 3 shows a complex filament made of four differing spinning materials
  • Figure 4 shows a complex filament made of concentric zones of four differing spinning materials and comprising a plurality of hollow cores in the outer zone.
  • the filament shown in Figure la comprises two and the filament shown in Figure 1b comprises six cores made of a spinning material B, e.g. viscose embedded in a base made of a differing spinning material A, e.g. linear polymeric resin.
  • the cores may also be filled by air or a foamy substance to improve the heat insulating properties.
  • FIG. 2a shows a filament comprising in concentric arrangement a central core of one material surrounded by an inner ring-shaped sheath of a second material this ring again being surrounded by an outer sheath of a third material.
  • Figure 2d shows a similar arrangement the outer sheath surrounding three duplex cores.
  • Figure 2b shows a filament comprising each three cores of two difieringspinning materials embedded in radial distribution in a base made of a third spinning material.
  • Figure 2c shows a ribbon-like filament, theouter body whereof having a cross-section in the shape of a dumbbell.
  • the two other spinning materials form cores arranged in the side portions of the ribbon.
  • Figure 2e shows anarrange ment similar to that of Figure 2d comprising an outer body of one spinning material A surrounding two duplex cores made of the other two spinning materials B and C. In one of the duplex cores the material B forms the outer ring and the material C the central core, and in the other duplex core the material C forms the outer ring and the material B the central core.
  • the complex filament shown in Figure 3 consists of four differing spinning materials distributed on two core filaments joined side-by-side.
  • the complex filament shown in Figure 4 consists of four coaxial zones each made of a differing spinning material.
  • In the outer sheath are embedded six secondary cores filled by air or a foamy mass to create a special optical effect.
  • the novel complex filaments are produced by spinnerets provided with multi-stage nozzles.
  • spinnerets are the subject matter of a copending application Serial No. 570,401, filed March 8, 1956.
  • the main feature of these spinnerets consists in the provision of multi-stage nozzle bodies built into and sealed in the partitions of the feed chamber, the nozzle tubes of said spinning bodies telescoping into one another and ending at one end practically in a common discharge plane, i.e. the plane of the nozzle end and at the other end in respective feed chambers whereby said nozzle tubes are integrally joined at least at one intermediate zone.
  • spinning material used in the description of this invention comprises all materials adapted to be formed in dissolved or molten states. Therefore, the term spinning denotes only a short word for the all embracing principle of the plastic working or deforming of materials under pressure or tension, e.g. besides spinning" in the narrow technical sense, it comprises also the processes of the extrusion, pressing, or drawing, of injection molding or pressure casting etc.
  • This invention primarily has to do with materials of organic composition like cellulose, cellulose compounds, aldehyde condensation products, albumin and other nitrogenous substances like casein, gelatin and especially artificial resins comprising vinyl, acryl-, styryland other non-saturated groups especially modern linear polymers.
  • these spinning materials are shaped into form-persistent fibrous structures by loss of heat or drying out or by suitable solidifying agents like liquid precipitants, cooling gas, etc.
  • novel complex filaments may comprise colouring or other ingredients to give special optical effects such as iridescence, lustre, shot-colour, etc.
  • novel complex filaments may also have a crimpcd structure by preparing them in spinnerets provided with vibrating nozzle heads.
  • novel complex filaments may be produced as single filaments.
  • a preferred embodiment of this invention consists in complex artificial filament bundles produced in multi-orifice spinnerets. These bundles may comprise in symmetrical or other distribution single filaments of differing cross-sectional structure-inclusive monotonic ones.

Description

P 1960 HANS-JOACHIM DIETZSCH ETAL 2,932,079
COMPLEX ARTIFICIAL FILAMENTS Filed March 8, 1956 .invemor's United States Patent 2,932,079 H COMPLEX ARTIFICIAL FILAMENTS Hans-Joachim Dietzsch, Horn, and Otto Dietzsch, Wangen, Germany, assignors to Trikotfabriken-J. Sehiesser A.G., Radolfzell (Bodensee), Germany Application March 8, 1956, Serial No. 570,250
3 Claims. (CI. 28-82) This invention deals with the improvement of complex artificial filaments comprising two or more longitudinal sections of difierent spinning materials. Such filaments may comprise a hollow gas-filled core or may consist of compound structures of two or more difierent spinning materials joined in centrally symmetrical or non-symmetrical distribution. Such artificial filaments of inhomogeneous material cross-section are known.
These known complex artificial filaments comprise only two different materials across the cross-section one of which may be of gaseous nature to form a hollow, hose-like structure.
It is also known to produce crimped filaments by extruding into a setting medium at least two differing liquid spinning materials capable of imparting difierent shrinkage to equally stretched filaments thereof in a way to form a plurality of unitary filaments each having at filaments made of two differing spinning materials, entire length of the filament by intermingled portions of the materials with partial free peripheries of the components.
There are also known artificial filaments of composite character comprising at least two basic components one of which is disposed between two portions of the other or others which may cover the lateral surfaces of the former component completely or only partially.
It is a primary subject of this invention to provide complex artificial filaments comprising at least two cores of difiering spinning materials embedded in a sheath body made of a further differing spinning material.
Further features and advantages of this invention will be apparent from the drawing and the description thereof hereinafter.
' The drawings illustrate on a large scale cross-sections of filaments shaped according to this invention.
Figures la and 1b show configurations of complex filaments made of two difiering spinning materials,
Figures 2a to 2e show configurations of complex filaments made of three differing spinning materials,
Figure 3 shows a complex filament made of four differing spinning materials,
Figure 4 shows a complex filament made of concentric zones of four differing spinning materials and comprising a plurality of hollow cores in the outer zone.
The filament shown in Figure la comprises two and the filament shown in Figure 1b comprises six cores made of a spinning material B, e.g. viscose embedded in a base made of a differing spinning material A, e.g. linear polymeric resin. The cores may also be filled by air or a foamy substance to improve the heat insulating properties.
The filament structures shown in the Figures 2a to 2e comprise three differing spinning materials. Figure 2a shows a filament comprising in concentric arrangement a central core of one material surrounded by an inner ring-shaped sheath of a second material this ring again being surrounded by an outer sheath of a third material.
2,932,079 Patented Apr. 12, 1960 ice Figure 2d shows a similar arrangement the outer sheath surrounding three duplex cores. Figure 2b shows a filament comprising each three cores of two difieringspinning materials embedded in radial distribution in a base made of a third spinning material. Figure 2c shows a ribbon-like filament, theouter body whereof having a cross-section in the shape of a dumbbell. -The two other spinning materials form cores arranged in the side portions of the ribbon. Figure 2e shows anarrange ment similar to that of Figure 2d comprising an outer body of one spinning material A surrounding two duplex cores made of the other two spinning materials B and C. In one of the duplex cores the material B forms the outer ring and the material C the central core, and in the other duplex core the material C forms the outer ring and the material B the central core.
The complex filament shown in Figure 3 consists of four differing spinning materials distributed on two core filaments joined side-by-side.
The complex filament shown in Figure 4 consists of four coaxial zones each made of a differing spinning material. In the outer sheath are embedded six secondary cores filled by air or a foamy mass to create a special optical effect.
The novel complex filaments are produced by spinnerets provided with multi-stage nozzles. Such spinnerets are the subject matter of a copending application Serial No. 570,401, filed March 8, 1956. The main feature of these spinnerets consists in the provision of multi-stage nozzle bodies built into and sealed in the partitions of the feed chamber, the nozzle tubes of said spinning bodies telescoping into one another and ending at one end practically in a common discharge plane, i.e. the plane of the nozzle end and at the other end in respective feed chambers whereby said nozzle tubes are integrally joined at least at one intermediate zone.
The term spinning material used in the description of this invention comprises all materials adapted to be formed in dissolved or molten states. Therefore, the term spinning denotes only a short word for the all embracing principle of the plastic working or deforming of materials under pressure or tension, e.g. besides spinning" in the narrow technical sense, it comprises also the processes of the extrusion, pressing, or drawing, of injection molding or pressure casting etc.
This invention primarily has to do with materials of organic composition like cellulose, cellulose compounds, aldehyde condensation products, albumin and other nitrogenous substances like casein, gelatin and especially artificial resins comprising vinyl, acryl-, styryland other non-saturated groups especially modern linear polymers. According to their nature these spinning materials are shaped into form-persistent fibrous structures by loss of heat or drying out or by suitable solidifying agents like liquid precipitants, cooling gas, etc.
The novel complex filaments may comprise colouring or other ingredients to give special optical effects such as iridescence, lustre, shot-colour, etc.
The novel complex filaments may also have a crimpcd structure by preparing them in spinnerets provided with vibrating nozzle heads.
The novel complex filaments may be produced as single filaments. A preferred embodiment of this invention consists in complex artificial filament bundles produced in multi-orifice spinnerets. These bundles may comprise in symmetrical or other distribution single filaments of differing cross-sectional structure-inclusive monotonic ones.
What we claim is:
1 1. Complex artificial filament of uniform and constant cross section over its entire length comprising at least and consisting of different spinning materials, and a sheath body of a further different spinning material, the
said cores being embedded in the sheath. 1
2. Complex artficial filament of uniform and constant cross section over its entire length comprising two cores of different spinning materials, and a base of a third spinning material with the two cores embedded in spaced lateral zones respectively of the base.
3. Complex artificial filament according to claim 1, in which at least one core is an axially extending gas filled space.
References Cited in the file of this patent UNITED STATES PATENTS Pfannkuch Oct. 16, Radford Sept. 7, Kulp et a1. Oct. 2, Elliott Aug. 15, Ladisch Apr. 6, Crandall Feb. 21, White June 19, Walters Aug. 27, OBrien Mar. 4,

Claims (1)

1. COMPLEX ARTIFICIAL FILAMENT OF UNIFORM AND CONSTANT CROSS SECTION OVER ITS ENTIRE LENGTH COMPRISING AT LEAST TWO CORES EXTENDING IN SPACED RELATION WITH ONE ANOTHER AND CONSISTING OF DIFFERENT SPINNING MATERIALS, THE SHEATH BODY OF A FURTHER DIFFERENT SPINNING MATERIAL, THE SAID CORES BEING EMBEDDED IN THE SHEATH.
US570250A 1956-03-08 1956-03-08 Complex artificial filaments Expired - Lifetime US2932079A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081490A (en) * 1957-11-16 1963-03-19 Glanzstoff Ag Spinning apparatus for the spinning of hollow filaments
US3121698A (en) * 1958-02-11 1964-02-18 Nat Lead Co Process of coating cellulosic particles by polymerizing a 1-olefin onto said particles; process of removing the cellulosic particles from the coated particles and hollowshells obtained therefrom
US3121254A (en) * 1957-12-14 1964-02-18 Glanzstoff Ag Apparatus for the spinning of hollow filaments
US3315021A (en) * 1964-06-19 1967-04-18 Snia Viscosa Process for the production of crimpable composite synthetic yarns
US3459846A (en) * 1965-12-01 1969-08-05 Kanebo Ltd Method and spinneret device for spinning two-component filaments
US3642565A (en) * 1968-03-21 1972-02-15 Kanegafuchi Spinning Co Ltd Composite filaments having an elastic crimping property
US3716614A (en) * 1969-05-12 1973-02-13 Toray Industries Process of manufacturing collagen fiber-like synthetic superfine filament bundles
JPS4948583B1 (en) * 1972-11-07 1974-12-21
US4107129A (en) * 1976-02-24 1978-08-15 Toray Industries, Inc. Antistatic acrylic fiber
US4207376A (en) * 1978-06-15 1980-06-10 Toray Industries, Inc. Antistatic filaments having an internal layer comprising carbon particles and process for preparation thereof
DE2945299A1 (en) * 1979-11-09 1981-05-21 Toray Industries, Inc., Tokyo COMPOSED MULTI-COMPONENT THREAD
US4302509A (en) * 1979-02-22 1981-11-24 Albany International Corp. Sorbent-cored textile yarns
US4315877A (en) * 1979-02-22 1982-02-16 Albany International Corp. Methods of fabricating sorbent-cored textile yarns
US4350006A (en) * 1966-01-07 1982-09-21 Toray Industries, Inc. Synthetic filaments and the like
US4381335A (en) * 1979-11-05 1983-04-26 Toray Industries, Inc. Multi-component composite filament
US4405686A (en) * 1981-06-05 1983-09-20 Teijin Limited Crimpable conjugate filamentary yarns having a flattened cross-sectional configuration
US4496619A (en) * 1981-04-01 1985-01-29 Toray Industries, Inc. Fabric composed of bundles of superfine filaments
US4680156A (en) * 1985-10-11 1987-07-14 Ohio University Sheath core composite extrusion and a method of making it by melt transformation coextrusion
US4756969A (en) * 1984-11-28 1988-07-12 Toray Industries, Inc. Highly electrically conductive filament and a process for preparation thereof
EP0356100A2 (en) * 1988-08-17 1990-02-28 Herschel Sternlieb White blackout fabric
US5009954A (en) * 1985-07-12 1991-04-23 Ohio University Sheath core fiber and its method of manufacture
US5019445A (en) * 1989-06-05 1991-05-28 Charles Samelson Co. White blackout fabric
US5876650A (en) * 1997-12-01 1999-03-02 Basf Corporation Process of making fibers of arbitrary cross section
US20220049376A1 (en) * 2020-08-13 2022-02-17 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977325A (en) * 1932-01-07 1934-10-16 Gen Electric High voltage cable
US2328998A (en) * 1939-12-27 1943-09-07 George S Radford Attrition product and method for making same
US2386173A (en) * 1943-05-13 1945-10-02 American Viscose Corp Apparatus for the production of artificial filaments
US2518454A (en) * 1944-11-14 1950-08-15 Myron A Elliott Manufacture of water sealed cable and construction thereof
US2674025A (en) * 1949-08-15 1954-04-06 Texiclon Corp Polymeric filaments
US2735258A (en) * 1956-02-21 Manufacture and construction of
US2750653A (en) * 1955-01-19 1956-06-19 Eastman Kodak Co Yarn structure
US2804098A (en) * 1955-12-22 1957-08-27 Russell Mfg Co Venetian blind tape
US2825260A (en) * 1954-11-19 1958-03-04 O'brien Brian Optical image forming devices

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735258A (en) * 1956-02-21 Manufacture and construction of
US1977325A (en) * 1932-01-07 1934-10-16 Gen Electric High voltage cable
US2328998A (en) * 1939-12-27 1943-09-07 George S Radford Attrition product and method for making same
US2386173A (en) * 1943-05-13 1945-10-02 American Viscose Corp Apparatus for the production of artificial filaments
US2518454A (en) * 1944-11-14 1950-08-15 Myron A Elliott Manufacture of water sealed cable and construction thereof
US2674025A (en) * 1949-08-15 1954-04-06 Texiclon Corp Polymeric filaments
US2825260A (en) * 1954-11-19 1958-03-04 O'brien Brian Optical image forming devices
US2750653A (en) * 1955-01-19 1956-06-19 Eastman Kodak Co Yarn structure
US2804098A (en) * 1955-12-22 1957-08-27 Russell Mfg Co Venetian blind tape

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081490A (en) * 1957-11-16 1963-03-19 Glanzstoff Ag Spinning apparatus for the spinning of hollow filaments
US3121254A (en) * 1957-12-14 1964-02-18 Glanzstoff Ag Apparatus for the spinning of hollow filaments
US3121698A (en) * 1958-02-11 1964-02-18 Nat Lead Co Process of coating cellulosic particles by polymerizing a 1-olefin onto said particles; process of removing the cellulosic particles from the coated particles and hollowshells obtained therefrom
US3315021A (en) * 1964-06-19 1967-04-18 Snia Viscosa Process for the production of crimpable composite synthetic yarns
US3459846A (en) * 1965-12-01 1969-08-05 Kanebo Ltd Method and spinneret device for spinning two-component filaments
US4350006A (en) * 1966-01-07 1982-09-21 Toray Industries, Inc. Synthetic filaments and the like
US3642565A (en) * 1968-03-21 1972-02-15 Kanegafuchi Spinning Co Ltd Composite filaments having an elastic crimping property
US3716614A (en) * 1969-05-12 1973-02-13 Toray Industries Process of manufacturing collagen fiber-like synthetic superfine filament bundles
JPS4948583B1 (en) * 1972-11-07 1974-12-21
US4107129A (en) * 1976-02-24 1978-08-15 Toray Industries, Inc. Antistatic acrylic fiber
US4207376A (en) * 1978-06-15 1980-06-10 Toray Industries, Inc. Antistatic filaments having an internal layer comprising carbon particles and process for preparation thereof
US4315877A (en) * 1979-02-22 1982-02-16 Albany International Corp. Methods of fabricating sorbent-cored textile yarns
US4302509A (en) * 1979-02-22 1981-11-24 Albany International Corp. Sorbent-cored textile yarns
US4381335A (en) * 1979-11-05 1983-04-26 Toray Industries, Inc. Multi-component composite filament
DE2945299A1 (en) * 1979-11-09 1981-05-21 Toray Industries, Inc., Tokyo COMPOSED MULTI-COMPONENT THREAD
US4496619A (en) * 1981-04-01 1985-01-29 Toray Industries, Inc. Fabric composed of bundles of superfine filaments
US4405686A (en) * 1981-06-05 1983-09-20 Teijin Limited Crimpable conjugate filamentary yarns having a flattened cross-sectional configuration
US4756969A (en) * 1984-11-28 1988-07-12 Toray Industries, Inc. Highly electrically conductive filament and a process for preparation thereof
US5009954A (en) * 1985-07-12 1991-04-23 Ohio University Sheath core fiber and its method of manufacture
US5219508A (en) * 1985-07-12 1993-06-15 Ohio University Method of manufacturing sheath core fiber
US4680156A (en) * 1985-10-11 1987-07-14 Ohio University Sheath core composite extrusion and a method of making it by melt transformation coextrusion
EP0356100A2 (en) * 1988-08-17 1990-02-28 Herschel Sternlieb White blackout fabric
EP0356100A3 (en) * 1988-08-17 1990-08-16 Herschel Sternlieb White blackout fabric
US5019445A (en) * 1989-06-05 1991-05-28 Charles Samelson Co. White blackout fabric
US5876650A (en) * 1997-12-01 1999-03-02 Basf Corporation Process of making fibers of arbitrary cross section
US20220049376A1 (en) * 2020-08-13 2022-02-17 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof
US11697892B2 (en) * 2020-08-13 2023-07-11 Gelatex Technologies OÜ Device and method for producing polymer fibers and its uses thereof

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