US3060504A - Apparatus for making artificial chamois - Google Patents

Apparatus for making artificial chamois Download PDF

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Publication number
US3060504A
US3060504A US859890A US85989059A US3060504A US 3060504 A US3060504 A US 3060504A US 859890 A US859890 A US 859890A US 85989059 A US85989059 A US 85989059A US 3060504 A US3060504 A US 3060504A
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United States
Prior art keywords
slot
chamois
fibers
making artificial
hopper
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Expired - Lifetime
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US859890A
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Thomas Ivan
Lachiche Julien
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Novacel SA
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Novacel SA
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/044—Rubber mold

Definitions

  • the invention provides a device for forming a uniform sheet of sponge pulp from the usual mixture of viscose, sodium sulfate crystals and reinforcing fibers, said pulp sheet then being made to undergo coagulation, finishing and other treatments for production of continuous strips of regenerated cellulose having a cellular structure that are reinforced with fibers without pronounced preferential orientation.
  • FIG. 1 is an elevation showing the pulp-distribution hopper
  • FIG. 2 is a transverse section taken on the line 22 of FIG. 1 showing the corrugated edges of the discharge end of the hopper.
  • a suitable volumetric pump 1 of the gear, piston or cam type feeds sponge pulp at a constant rate into a trapezoidal hopper 2 which terminates in a discharge slot 3.
  • One of the edges 4 of the slot may be of metal such as chrome steel or the like, while the other edge 5 may be made of a flexible material such as natural or synthetic rubber or a rubber-like plastic composition.
  • the width of the slot may be varied, in a manner known to the art, by means of screws 7 acting upon a flexible leaf 8 that bears on the fiexible edge 5. Variations in the head may readily be compensated for by adjusting the cross section of the slot 3.
  • the inside walls of the extrusion slot are formed with corrugations 9 as shown in FIG. 2.
  • This expedient disarranges the fibers and thus a ribbed sheet 6 is produced which, after the usual treatment, yields a cellular strip whose transverse strength is at least about 80 percent of its longitudinal strength.
  • the hopper need not be trapezoidal but may be flared to present any desired section.
  • the hopper flares outwardly toward the discharge slot and at the discharge point is slightly large in section than the discharge slot 3. This arrangement permits the viscose to flow downwardly toward the discharge slot 3 without causing any appreciable rearrangement or orientation of the fibers. Hence the fibers are essentially unoriented in the final strip 6 of artificial chamois.
  • Apparatus for the continuous manufacture of artificial unlined chamois skins from cellular regenerated cellulose containing fibers comprising a hopper having a narrow inlet end and flared outwardly toward a wider discharge end, pump means supplying viscose sponge pulp to the inlet end of said hopper, said hopper having an elongated discharge slot at said discharge end through which said pulp is extruded to form a continuous strip of artificial chamois, edge members defining said slot and provided with axial corrugations adapted to prevent preferential orientation of the fibers in said pulp as it passes through said slot, one of said edge members being composed of rigid material and the other of said edge members being composed of a flexible rubberlike material.
  • the method for the continuous manufacture of artificial unlined chamois skins from cellular regenerated cellulose containing fibers which comprises extruding sponge forming viscose material containing fibers through a passage flaring outwardly toward its discharge end having an elongated discharge opening formed by surfaces having axial corrugations wherein one of said surfaces is rigid and the opposing surface is composed of a flexible material, said opening being adapted to pass said viscose without causing preferential orientation of the fibers therein, and regenerating the viscose to form a rigid sheet after extrusion through said opening.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

United States Patent 06 ice 3,060,504 Patented Oct. 30, 1962 3,060,504 APPARATUS FOR MAKING ARTIFICIAL CHAMOIS Ivan Thomas and Julien Lachiche, Paris, France, assignors to Novacel, Paris, France, a corporation of France Filed Dec. 16, 1959, Ser. No. 859,890 Claims priority, application France Dec. 17, 1958 3 Claims. (Cl. 18--12) This invention relates to the manufacture of artificial chamois from a regenerated cellulose base and more particularly to a method and apparatus for making artificial chamois skins without cloth backing from a regenerated cellulose in a continuous process.
The invention provides a device for forming a uniform sheet of sponge pulp from the usual mixture of viscose, sodium sulfate crystals and reinforcing fibers, said pulp sheet then being made to undergo coagulation, finishing and other treatments for production of continuous strips of regenerated cellulose having a cellular structure that are reinforced with fibers without pronounced preferential orientation.
The nature of the invention will be better understood by referring to the following description, taken in connection with the accompanying drawing in which a specific embodiment has been set forth for purpose of illustration.
In the drawing:
FIG. 1 is an elevation showing the pulp-distribution hopper; and
FIG. 2 is a transverse section taken on the line 22 of FIG. 1 showing the corrugated edges of the discharge end of the hopper.
In FIG. 1, a suitable volumetric pump 1 of the gear, piston or cam type feeds sponge pulp at a constant rate into a trapezoidal hopper 2 which terminates in a discharge slot 3. One of the edges 4 of the slot may be of metal such as chrome steel or the like, while the other edge 5 may be made of a flexible material such as natural or synthetic rubber or a rubber-like plastic composition. The width of the slot may be varied, in a manner known to the art, by means of screws 7 acting upon a flexible leaf 8 that bears on the fiexible edge 5. Variations in the head may readily be compensated for by adjusting the cross section of the slot 3.
Inasmuch as plain edges would give rise to a preferential orientation of the fibers, which in turn would result in a product of low transverse strength, the inside walls of the extrusion slot are formed with corrugations 9 as shown in FIG. 2.
This expedient disarranges the fibers and thus a ribbed sheet 6 is produced which, after the usual treatment, yields a cellular strip whose transverse strength is at least about 80 percent of its longitudinal strength.
The hopper need not be trapezoidal but may be flared to present any desired section.
It is to be noted that the hopper flares outwardly toward the discharge slot and at the discharge point is slightly large in section than the discharge slot 3. This arrangement permits the viscose to flow downwardly toward the discharge slot 3 without causing any appreciable rearrangement or orientation of the fibers. Hence the fibers are essentially unoriented in the final strip 6 of artificial chamois.
What is claimed is:
1. Apparatus for the continuous manufacture of artificial unlined chamois skins from cellular regenerated cellulose containing fibers, comprising a hopper having a narrow inlet end and flared outwardly toward a wider discharge end, pump means supplying viscose sponge pulp to the inlet end of said hopper, said hopper having an elongated discharge slot at said discharge end through which said pulp is extruded to form a continuous strip of artificial chamois, edge members defining said slot and provided with axial corrugations adapted to prevent preferential orientation of the fibers in said pulp as it passes through said slot, one of said edge members being composed of rigid material and the other of said edge members being composed of a flexible rubberlike material.
2. Apparatus as set forth in claim 1 in which means is provided for adjusting the position of said last edge member for varying the width of said slot.
3. The method for the continuous manufacture of artificial unlined chamois skins from cellular regenerated cellulose containing fibers which comprises extruding sponge forming viscose material containing fibers through a passage flaring outwardly toward its discharge end having an elongated discharge opening formed by surfaces having axial corrugations wherein one of said surfaces is rigid and the opposing surface is composed of a flexible material, said opening being adapted to pass said viscose without causing preferential orientation of the fibers therein, and regenerating the viscose to form a rigid sheet after extrusion through said opening.
References Cited in the file of this patent UNITED STATES PATENTS 2,512,506 Saint Denis June 20, 1950 2,571,715 Henning Oct. 16, 1951 2,671,743 Lindquist Mar. 9, 1954 2,712,154 Lindquist July 5, 1955 2,720,679 Ratliff Oct. 18, 1955 2,865,048 Hudson Dec. 23, 1958 2,913,772 Buchkremer et al. Nov. 24, 1959 2,948,928 Ebneth et al. Aug. 16, 1960 FOREIGN PATENTS 641,989 Great Britain Aug. 23, 1950 812,564 Great Britain Apr. 29, 1959

Claims (1)

1.APPARATUS FOR THE CONTINUOUS MANUFACTURE OF ARTIFICIAL UNLINED CHAMOIS SKINS FROM CELLULAR REGENERATED
US859890A 1958-12-17 1959-12-16 Apparatus for making artificial chamois Expired - Lifetime US3060504A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1753693B1 (en) * 1965-11-22 1972-06-29 Novacel Sa Method and device for the production of artificial leather
US4255110A (en) * 1977-02-15 1981-03-10 Japan Styrene Paper Corporation Apparatus for producing corrugated foamed plastic sheet
US5922366A (en) * 1997-02-26 1999-07-13 E.I. Du Pont De Nemours And Company Spinnerets with diamond shaped capillaries
US6037047A (en) * 1997-02-26 2000-03-14 E. I. Du Pont De Nemours And Company Industrial fibers with diamond cross sections and products made therefrom
US6147017A (en) * 1997-02-26 2000-11-14 E. I. Du Pont De Nemours And Company Industrial fibers with sinusoidal cross sections and products made therefrom
US20090255079A1 (en) * 2008-04-10 2009-10-15 Kevin Arthur Neighley Cleaning towel

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512506A (en) * 1946-07-02 1950-06-20 Novacel Soc Method of preparing artificial sponges
GB641989A (en) * 1947-12-05 1950-08-23 Duratube & Wire Ltd Improvements in and relating to the manufacture of patterned thermoplastic strip material
US2571715A (en) * 1949-09-07 1951-10-16 Western Electric Co Strip material
US2671743A (en) * 1952-04-23 1954-03-09 Celloplast Ab Artificial sponge cloth
US2712154A (en) * 1952-04-23 1955-07-05 Celloplast Ab Apparatus for continuous production of artificial sponge cloth
US2720679A (en) * 1950-08-31 1955-10-18 Vern C Ratliff Universal die for forming tire tread
US2865048A (en) * 1955-07-06 1958-12-23 Ici Ltd Extrusion of film
GB812564A (en) * 1955-06-14 1959-04-29 Us Rubber Co Improvements in methods of making microporous material
US2913772A (en) * 1955-08-30 1959-11-24 American Enka Corp Method for producing reinforced sponge
US2948928A (en) * 1955-12-16 1960-08-16 Bayer Ag Process for manufacturing foamed polyurethane articles

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512506A (en) * 1946-07-02 1950-06-20 Novacel Soc Method of preparing artificial sponges
GB641989A (en) * 1947-12-05 1950-08-23 Duratube & Wire Ltd Improvements in and relating to the manufacture of patterned thermoplastic strip material
US2571715A (en) * 1949-09-07 1951-10-16 Western Electric Co Strip material
US2720679A (en) * 1950-08-31 1955-10-18 Vern C Ratliff Universal die for forming tire tread
US2671743A (en) * 1952-04-23 1954-03-09 Celloplast Ab Artificial sponge cloth
US2712154A (en) * 1952-04-23 1955-07-05 Celloplast Ab Apparatus for continuous production of artificial sponge cloth
GB812564A (en) * 1955-06-14 1959-04-29 Us Rubber Co Improvements in methods of making microporous material
US2865048A (en) * 1955-07-06 1958-12-23 Ici Ltd Extrusion of film
US2913772A (en) * 1955-08-30 1959-11-24 American Enka Corp Method for producing reinforced sponge
US2948928A (en) * 1955-12-16 1960-08-16 Bayer Ag Process for manufacturing foamed polyurethane articles

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1753693B1 (en) * 1965-11-22 1972-06-29 Novacel Sa Method and device for the production of artificial leather
US4255110A (en) * 1977-02-15 1981-03-10 Japan Styrene Paper Corporation Apparatus for producing corrugated foamed plastic sheet
US5922366A (en) * 1997-02-26 1999-07-13 E.I. Du Pont De Nemours And Company Spinnerets with diamond shaped capillaries
US6037047A (en) * 1997-02-26 2000-03-14 E. I. Du Pont De Nemours And Company Industrial fibers with diamond cross sections and products made therefrom
US6147017A (en) * 1997-02-26 2000-11-14 E. I. Du Pont De Nemours And Company Industrial fibers with sinusoidal cross sections and products made therefrom
US20090255079A1 (en) * 2008-04-10 2009-10-15 Kevin Arthur Neighley Cleaning towel
US20110219560A1 (en) * 2008-04-10 2011-09-15 Christina Scott Multi-material cleaning towel with pockets for cleaning products
US8074317B2 (en) * 2008-04-10 2011-12-13 Kevin Arthur Neighley Cleaning towel
US8292533B2 (en) 2008-04-10 2012-10-23 Christina Scott Multi-material cleaning towel with pockets for cleaning products

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