US2665222A - Rubberized broom fiber fabric - Google Patents

Rubberized broom fiber fabric Download PDF

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Publication number
US2665222A
US2665222A US225676A US22567651A US2665222A US 2665222 A US2665222 A US 2665222A US 225676 A US225676 A US 225676A US 22567651 A US22567651 A US 22567651A US 2665222 A US2665222 A US 2665222A
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United States
Prior art keywords
fabric
broom
rubberized
fibres
fiber fabric
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Expired - Lifetime
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US225676A
Inventor
Boinet Henri
Boinet Ernest
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Individual
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]

Definitions

  • the purpose of this invention is to overcome the above mentioned drawback and, in doing so, to permit the use of rot-proof hard fibres of great strength for the structural fabric of rubberized articles, without the strength of the finished product being very much less than that of the bare fabric.
  • the invention consists in a process of rubberizing broom fibre fabric comprising the step of subjecting said fabric, prior to the usual friction-calendering operations, to a pre-treatment for enabling said fibres to withstand said friction-calendering operations, that is to say, to enable them to undergo said operations without any too substantial deterioration in quality.
  • the inventors have, indeed, discovered that the usual frictioncalendering operations applied to a hard fibre fabric damaged the fibres by making them brittle, just as cold-working makes metal wire brittle.
  • This protective pre-treatment of the fibres can advantageously comprise coating, or even, impregnating the fibres with some suitable substance, preferably a rubber mixture, if possible vulcanizable.
  • the invention has also for its object, as novel industrial products, articles made of rubberized fabric of which the structural material is a hard fibre fabric, such as, for instance, a fabric made from fibre of the common broom, processed as stated above, that is to say, the fibres of which have been coated, for instance, impregnated, with a vulcanizable rubber mixture, such coating or impregnation being quite distinct from that formed by the friction-calendering operations.
  • the structural material is a hard fibre fabric, such as, for instance, a fabric made from fibre of the common broom, processed as stated above, that is to say, the fibres of which have been coated, for instance, impregnated, with a vulcanizable rubber mixture, such coating or impregnation being quite distinct from that formed by the friction-calendering operations.
  • the fabric to be used as structural material for a reinforced rubber article is subjected to a pre-drying process.
  • the fabric is given a maximum soaking in a dissolved vulcanizable rubber mixture.
  • This impregnation can be made in any suitable manner, for 1nstance, on a rubberizing machine, by pulverization, etc.
  • the fabric is thoroughly dried at a temperature lower than that of rubber vulcanization and which the fibres can withstand without deterioration.
  • the protective pie-processing is then terminated, and the fabric thus prepared can be subjected to the usual friction-calendering operations without the strength of the finished reinforced rubber article having been substantially reduced as compared with the strength of the original fabric.
  • the desired articles are then manufactured by the usual methods as in the case of cotton structural material.
  • a fabric of broom fibres having a sub coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.
  • a conveyer belt consisting of a fabric of broom fibers having a sub-coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.
  • a hose pipe consisting of a fabric of broom fibers having a sub-coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Reinforced Plastic Materials (AREA)

Description

Patented Jan. 5, 1954 UNITED STATES ATENT rric RUBBERIZED BROOM FIBER FABRIC Henri Boinet and Ernest Boinet, Saint-Quentin, France No Drawing. Application May 10, 1951, Serial No. 225,676
3 Claims.
When it was attempted to replace the cotton duck or fabrics made from other fibres now used as structural material in the manufacture of rubberized articles such, for instance, as hose pipes, conveyor belts, etc. by fabrics made from hard fibres, such as the fibre of the common broom, hemp fibre, etc., it was found that the finished product were out comparatively easily and that it was not nearly as strong as the bare fabric.
It was ascertained that this drop in strength was ranging about 30 to 50%. Thus, not only was the whole advantage of using rot-proof fibres of great strength lost, but serious disadvantages arose, so that these attempts had to be abandoned.
The purpose of this invention is to overcome the above mentioned drawback and, in doing so, to permit the use of rot-proof hard fibres of great strength for the structural fabric of rubberized articles, without the strength of the finished product being very much less than that of the bare fabric.
With this object in view, the invention consists in a process of rubberizing broom fibre fabric comprising the step of subjecting said fabric, prior to the usual friction-calendering operations, to a pre-treatment for enabling said fibres to withstand said friction-calendering operations, that is to say, to enable them to undergo said operations without any too substantial deterioration in quality. The inventors have, indeed, discovered that the usual frictioncalendering operations applied to a hard fibre fabric damaged the fibres by making them brittle, just as cold-working makes metal wire brittle.
By protecting the fibres against this harmful efiect of the friction-calendering operations, the greater part of the initial strength of the fabric is retained, thus ensuring the benefit of the great strength of the hard fibres used.
This protective pre-treatment of the fibres can advantageously comprise coating, or even, impregnating the fibres with some suitable substance, preferably a rubber mixture, if possible vulcanizable.
The invention has also for its object, as novel industrial products, articles made of rubberized fabric of which the structural material is a hard fibre fabric, such as, for instance, a fabric made from fibre of the common broom, processed as stated above, that is to say, the fibres of which have been coated, for instance, impregnated, with a vulcanizable rubber mixture, such coating or impregnation being quite distinct from that formed by the friction-calendering operations.
Merely as an example, but without in any way 2 limiting the scope of the invention, the followmg 1s a description of one particular method of obtaining a rubberized fabric, according to the invention.
First of all, in order to reduce the humidity content of the hard fibre fabric such as a fabric made from broom fibre, the fabric to be used as structural material for a reinforced rubber article is subjected to a pre-drying process. The fabric is given a maximum soaking in a dissolved vulcanizable rubber mixture. This impregnation can be made in any suitable manner, for 1nstance, on a rubberizing machine, by pulverization, etc. When the impregnation. has been finished, the fabric is thoroughly dried at a temperature lower than that of rubber vulcanization and which the fibres can withstand without deterioration.
The protective pie-processing is then terminated, and the fabric thus prepared can be subjected to the usual friction-calendering operations without the strength of the finished reinforced rubber article having been substantially reduced as compared with the strength of the original fabric.
The desired articles are then manufactured by the usual methods as in the case of cotton structural material.
It goes without saying that the invention is in no way limited to the details of embodiment stated above, as these have been given merely by way of information.
Having thus described the invention what we claim is:
l. A fabric of broom fibres having a sub coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.
2. A conveyer belt consisting of a fabric of broom fibers having a sub-coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.
3. A hose pipe consisting of a fabric of broom fibers having a sub-coating of a rubber solution rendering said broom fibers pliable and reinforced by an outer coating of calendered vulcanized rubber.
HENRI BOINET. ERNEST BOINET.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 247,836 Mayall Oct. l, 1881 354,993 Torrey Dec. 28, 1886 837,193 Candcnberg Nov. 27, 1906

Claims (1)

1. A FABRIC OF BROOM FIBRES HAVING A SUBCOATING OF A RUBBER SOLUTION RENDERING SAID BROOM FIBERS PLIABLE AND REINFORCED BY AN OUTER COATING OF CALENDERED VULCANIZED RUBBER.
US225676A 1951-03-08 1951-05-10 Rubberized broom fiber fabric Expired - Lifetime US2665222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2665222X 1951-03-08

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US2665222A true US2665222A (en) 1954-01-05

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US225676A Expired - Lifetime US2665222A (en) 1951-03-08 1951-05-10 Rubberized broom fiber fabric

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226312A (en) * 1960-04-26 1965-12-28 Lamm Alphonse Processes for the manufacture of natural and synthetic rubbers reinforced with fillers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US247836A (en) * 1881-10-04 Rubber-coated cloth
US354993A (en) * 1886-12-28 Vulcanized fabric from gums and ramie and similar fibers
US837193A (en) * 1906-05-02 1906-11-27 Charles Alfred Carles De Caudemberg Process for agglomerating fibrous substances.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US247836A (en) * 1881-10-04 Rubber-coated cloth
US354993A (en) * 1886-12-28 Vulcanized fabric from gums and ramie and similar fibers
US837193A (en) * 1906-05-02 1906-11-27 Charles Alfred Carles De Caudemberg Process for agglomerating fibrous substances.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226312A (en) * 1960-04-26 1965-12-28 Lamm Alphonse Processes for the manufacture of natural and synthetic rubbers reinforced with fillers

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