US3214289A - Flexible foil-like webs and method of making the same - Google Patents

Flexible foil-like webs and method of making the same Download PDF

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US3214289A
US3214289A US15536061A US3214289A US 3214289 A US3214289 A US 3214289A US 15536061 A US15536061 A US 15536061A US 3214289 A US3214289 A US 3214289A
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filaments
lattice
threads
flexible foil
adhesive
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Lefebvre Julien
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D DUCARIN ETS
ETS D DUCARIN
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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/225—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based artificial, e.g. viscose
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573—Tensile strength
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/005—Tapes or ribbons not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work fabrics
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/013—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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/26—Presence of textile or fabric
    • C09J2400/263—Presence of textile or fabric in the substrate
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
    • D10B2101/06—Glass
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24—Viscose
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/164—Including a preformed film, foil, or sheet
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/172—Coated or impregnated
    • Y10T442/178—Synthetic polymeric fiber

Definitions

  • Sheets and tapes consisting of synthetic material which are reinforced with longitudinally extending filaments or threads. Suchsheets or tapes are intended for packing and binding purposes. The sheets and tapes can in certain cases be provided on one side with an adhesive composition.
  • This invention relates to a flexible foil-like web which is reinforced with filaments or threads and which is especially suitable for packing purposes, and to the production of tapes for binding purposes or the manufacture of adhesive tapes, especially self-adhesive tapes, the said webs or tapes being characterized by high strength values, for example with respect to tensile forces, bending, impact and the like and as regards cheapness.
  • the flexible foil-like web reinforced with filaments in accordance with the invention comprises a large-mesh lattice material consisting of vegetable, animal, mineral, artificial or synthetic filaments, in which the openings in the lattice are each closed by a thin skin of an elastomeric substance.
  • the lattice material can for example consist of an openweave fabric or of a material consisting of superimposed, unwoven warp and weft threads or filaments.
  • the spacing between the filaments (weft and warp) in the lattice material is preferably at least 1 mm. and is advantageously 2-4 mm.; however, for special purposes, the filament spacings can be substantially larger, for example 9 mm. or more.
  • the elastomeric material can consist of natural rubber or artificial rubber or another elastomeric synthetic material or mixtures thereof. According to one preferred embodiment, the elastomeric material is applied from a latex or dispersion on to the lattice material.
  • the warp threads consisting of vegetable, animal, mineral, artificial or synthetic filaments, may be arranged at a regular spacing from one another and united by weft filaments consisting of any suitable textile threads, arranged at such a spacing from one another than an open arrangement or structure is obtained.
  • a lattice material may be impregnated with a bath containing dispersions consisting for example of natural rubber latex or a latex of an artificial rubber, the latex, if desired, being modified with thermosetting resins.
  • Thermoplastic materials may likewise be used, preferably together with plasticisers and in paste or dispersed form (plastisols or organosols). Fibers in flake or powder form may also be added to any of these types of impregnants. The impregnation is carried out so that after drying and polymerisation, a web is obtained in which the pores or interstices of the lattice material are closed by a thin film.
  • the weft filaments serve to maintain the spacing of the warp filaments, and should have a tensile strength suitable for the intended purpose, for example for packing purposes, as adhesive tapes or adhesive sheets.
  • the webs can be subjected to treatments to make them water-proof, flame-proof, rot-proof or the like and may if desired be colored.
  • the products can also be used for the manufacture of garments and protective covers.
  • the Webs are especially suitable for applying on one side an adhesive in order to make adhesive tapes which have a strong and uniform longitudinal strength.
  • the web is preferably manufactured by drawing the lattice material, immediately after having been manufactured (for example by weaving or superimposition of warp and weft threads), through a bath containing a dispersion consisting of a natural latex or artificial rubber latex, or containing a plastisol, i.e. a dispersion of a plastic in a plasticiser.
  • the bath may if required contain age resistors, modifying agents, for example thermosetting resins, as well as vulcanising or curing agents or accelerators.
  • the bath may in addition contain pigments and/ or dyestuffs, as well as agents for flame-proofing purposes and/ or for preservative purposes and for protection against micro-organisms, and/ or for water-proofing purposes. If desired, fibers in the form of fiber dust or fiber flakes can also be present in the impregnation bath.
  • the underside of the flexible foil-like reinforced with filaments or threads may be provided with an adhesive, more especially a pressure-sensitive adhesive composition or a self-adhesive composition. If required, the top side of the web may carry an adhesive-repelling layer.
  • FIG. 1 shows diagrammatically a large-mesh woven fabric, in which the openings in the fabric are each closed by a thin film of an elastomeric material;
  • FIG. 2 is a diagrammatic view of an open lattice material, which is manufactured from superimposed warp and weft threads and in which the openings in the lattice are each closed by a thin film of an elastomeric material;
  • FIG. 3 shows a lattice material as a cross-section taken on the line Ill-HI of FIG. 2, in which the openings in the lattice are each closed by a thin film of an elastomeric material and which carries on its underside a self-adhesive composition and on its upper side an adhesive-repelling layer; and
  • FIG. 4 is a detail view and shows diagrammatically on an enlarged scale a section through a lattice opening, in which is disposed the film consisting of elastomeric material.
  • FIG. 1 shows an open wide-mesh woven fabric, the warp threads 1 and weft threads 2, the threads in each being at equal spacings from one another.
  • the openings or meshes thus formed in the woven fabric are closed by thin films 3 of elastomeric material.
  • the films can consist of natural rubber, artificial rubber or other elastomeric plastics or mixtures thereof.
  • the distance of the Warp and weft threads from one another is kept constant by the thin films formed in the openings.
  • FIG. 2 comprises (when viewed perpendicularly to the plane of the drawing) a lattice material consisting of superimposed front warp threads 4, weft threads 5 disposed between them and rear warp threads 6.
  • the rear warp threads 6 are arranged staggered in relation to the front warp threads 4. They can also be disposed in alignment with the front warp threads 4.
  • the meshes or openings of the lattice material thus formed are again closed by thin films of elastomeric material.
  • the lattice material of FIG. 2 is further provided with an upper adhesive-repelling layer 7 and a lower layer of a pressure-sensitive adhesive composition 8.
  • the upper adhesive-repelling layer and the adhesive composition adhere firmly to the support consisting of the lattice material, the openings of which are closed by thin films of elastomeric material.
  • FIG. 4 shows the formation of the filnTs in the openings within the lattice material.
  • the film 3 which closes the mesh is meniscus shaped being thinner in the center and thicker at the portions where it contacts the filaments.
  • Example I A web according to FIG. 1 can for example be manufactured as follows:
  • a lattice-like woven fabric was manufactured from 400 denier twistless yarns each of 1000 filaments of highstrength viscose rayon, the thread spacing in both warp and weft being about 3 mm.
  • the fabric was impregnated with a 30% by weight dispersion of butadiene acrylonitrile copolymer or of butyl rubber, the dispersion containing a small quantity of thiuramdisulphide.
  • the fabric was drawn through the dispersion just after the sley of the loom by co-operating applicator and squeezing cylinders, one of which has an elastic surface.
  • T he treated lattice-like fabric was thereupon dried in air and vulcanised by being brought into contact with a heated cylinder.
  • the separate openings in the lattice were closed by thin films of vulcanised synthetic rubber, which in addition to closing the interstices at the same time effectively prevented a relative displacement of the threads of the fabric.
  • the product had a very high tensile strength, a good bending and breaking strength, excellent resistance to tearing and high impact resistance.
  • Example II A web according to FIG. 2 may for example be manufactured as follows:
  • a polyvinyl chloride plastisol polyvinyl chloride in dioctylphthalate
  • the underside of the web thus obtained is then coated with a self-adhesive composition of known type consisting of rubber, resin, filler and age resistor, while the top surface is provided with a coating consisting of an adhesive-repelling composition based on silicone or based on polyvinyl stearate.
  • Adhesive tapes manufactured from the web exhibit excellent properties
  • the flexible foil-like web reinforced with filaments or threads in accordance with the invention is distinguished by high tensile strength longitudinally and also (where high strength weft is used) transversely and high bending and impact strengths.
  • the warp and weft threads are anchored to one another by the films of elastomeric material and cannot be displaced relatively to one another.
  • Tapes manufactured from the flexible foil-like web reinforced with filaments are suitable as a binding material for many industrial purposes, more especially for packing purposes.
  • the flexible foil-like web reinforced with filaments can also be used for packing and protecting purposes and is distinguished by a particularly good resistance to chemical action and weather influences.
  • Sheets or tapes consisting of the filament-reinforced flexible foil-like web in accordance with the invention, provided with an adhesive layer, have high strength values and can be used instead of banding irons for the closing of containers, boxes, cartons and also for banding heavy and bulky articles, for example bundles of rods.
  • An adhesive tape for high-strength packing comprising a filament-reinforced flexible foil-like web, of a largemesh lattice material consisting of synthetic filaments having a spacing of from 2 to 4 mm., in which the openings of the lattice are each closed by a thin film of an elastomeric plastic material, said film in each opening being thin in the center and increasing in thickness in a meniscus to the point of contact with the filaments and a coating of a pressure-sensitive adhesive on one side of the lattice material.

Description

Oct. 26, 1965 J. LEFEBVRE 3,214,289
FLEXIBLE FOIL-LIKE WEBS AND METHOD OF MAKING THE SAME Filed Nov. 28. 1961 Inventor 7:04 (I! [in I In:
Attorney United States Patent 1 Claim. 61. 117-422 This invention relates to new flexible foil-like webs and to methods of making the same.
Sheets and tapes consisting of synthetic material are known which are reinforced with longitudinally extending filaments or threads. Suchsheets or tapes are intended for packing and binding purposes. The sheets and tapes can in certain cases be provided on one side with an adhesive composition.
This invention relates to a flexible foil-like web which is reinforced with filaments or threads and which is especially suitable for packing purposes, and to the production of tapes for binding purposes or the manufacture of adhesive tapes, especially self-adhesive tapes, the said webs or tapes being characterized by high strength values, for example with respect to tensile forces, bending, impact and the like and as regards cheapness.
The flexible foil-like web reinforced with filaments in accordance with the invention comprises a large-mesh lattice material consisting of vegetable, animal, mineral, artificial or synthetic filaments, in which the openings in the lattice are each closed by a thin skin of an elastomeric substance.
The lattice material can for example consist of an openweave fabric or of a material consisting of superimposed, unwoven warp and weft threads or filaments. The spacing between the filaments (weft and warp) in the lattice material is preferably at least 1 mm. and is advantageously 2-4 mm.; however, for special purposes, the filament spacings can be substantially larger, for example 9 mm. or more.
The elastomeric material can consist of natural rubber or artificial rubber or another elastomeric synthetic material or mixtures thereof. According to one preferred embodiment, the elastomeric material is applied from a latex or dispersion on to the lattice material.
The warp threads, consisting of vegetable, animal, mineral, artificial or synthetic filaments, may be arranged at a regular spacing from one another and united by weft filaments consisting of any suitable textile threads, arranged at such a spacing from one another than an open arrangement or structure is obtained. Such a lattice material may be impregnated with a bath containing dispersions consisting for example of natural rubber latex or a latex of an artificial rubber, the latex, if desired, being modified with thermosetting resins. Thermoplastic materials may likewise be used, preferably together with plasticisers and in paste or dispersed form (plastisols or organosols). Fibers in flake or powder form may also be added to any of these types of impregnants. The impregnation is carried out so that after drying and polymerisation, a web is obtained in which the pores or interstices of the lattice material are closed by a thin film.
In a Web according to the invention, the weft filaments serve to maintain the spacing of the warp filaments, and should have a tensile strength suitable for the intended purpose, for example for packing purposes, as adhesive tapes or adhesive sheets.
The webs can be subjected to treatments to make them water-proof, flame-proof, rot-proof or the like and may if desired be colored. The products can also be used for the manufacture of garments and protective covers.
ice
The Webs are especially suitable for applying on one side an adhesive in order to make adhesive tapes which have a strong and uniform longitudinal strength.
The web is preferably manufactured by drawing the lattice material, immediately after having been manufactured (for example by weaving or superimposition of warp and weft threads), through a bath containing a dispersion consisting of a natural latex or artificial rubber latex, or containing a plastisol, i.e. a dispersion of a plastic in a plasticiser. The bath may if required contain age resistors, modifying agents, for example thermosetting resins, as well as vulcanising or curing agents or accelerators. The bath may in addition contain pigments and/ or dyestuffs, as well as agents for flame-proofing purposes and/ or for preservative purposes and for protection against micro-organisms, and/ or for water-proofing purposes. If desired, fibers in the form of fiber dust or fiber flakes can also be present in the impregnation bath.
The underside of the flexible foil-like reinforced with filaments or threads may be provided with an adhesive, more especially a pressure-sensitive adhesive composition or a self-adhesive composition. If required, the top side of the web may carry an adhesive-repelling layer.
The invention is illustrated in the accompanying drawings, in which:
FIG. 1 shows diagrammatically a large-mesh woven fabric, in which the openings in the fabric are each closed by a thin film of an elastomeric material;
FIG. 2 is a diagrammatic view of an open lattice material, which is manufactured from superimposed warp and weft threads and in which the openings in the lattice are each closed by a thin film of an elastomeric material;
FIG. 3 shows a lattice material as a cross-section taken on the line Ill-HI of FIG. 2, in which the openings in the lattice are each closed by a thin film of an elastomeric material and which carries on its underside a self-adhesive composition and on its upper side an adhesive-repelling layer; and
FIG. 4 is a detail view and shows diagrammatically on an enlarged scale a section through a lattice opening, in which is disposed the film consisting of elastomeric material.
Referring to the drawings more in detail;
FIG. 1 shows an open wide-mesh woven fabric, the warp threads 1 and weft threads 2, the threads in each being at equal spacings from one another. The openings or meshes thus formed in the woven fabric are closed by thin films 3 of elastomeric material. The films can consist of natural rubber, artificial rubber or other elastomeric plastics or mixtures thereof. The distance of the Warp and weft threads from one another is kept constant by the thin films formed in the openings.
The embodiment shown in FIG. 2 comprises (when viewed perpendicularly to the plane of the drawing) a lattice material consisting of superimposed front warp threads 4, weft threads 5 disposed between them and rear warp threads 6. As will be seen the rear warp threads 6 are arranged staggered in relation to the front warp threads 4. They can also be disposed in alignment with the front warp threads 4.
The meshes or openings of the lattice material thus formed are again closed by thin films of elastomeric material.
In FIG. 3 the lattice material of FIG. 2 is further provided with an upper adhesive-repelling layer 7 and a lower layer of a pressure-sensitive adhesive composition 8. The upper adhesive-repelling layer and the adhesive composition adhere firmly to the support consisting of the lattice material, the openings of which are closed by thin films of elastomeric material.
The detail view of FIG. 4 shows the formation of the filnTs in the openings within the lattice material. In this figure it will be noted that the film 3 which closes the mesh is meniscus shaped being thinner in the center and thicker at the portions where it contacts the filaments.
The following example illustrates the invention:
Example I A web according to FIG. 1 can for example be manufactured as follows:
A lattice-like woven fabric was manufactured from 400 denier twistless yarns each of 1000 filaments of highstrength viscose rayon, the thread spacing in both warp and weft being about 3 mm. Immediately after manufacture the fabric was impregnated with a 30% by weight dispersion of butadiene acrylonitrile copolymer or of butyl rubber, the dispersion containing a small quantity of thiuramdisulphide. The fabric was drawn through the dispersion just after the sley of the loom by co-operating applicator and squeezing cylinders, one of which has an elastic surface.
T he treated lattice-like fabric was thereupon dried in air and vulcanised by being brought into contact with a heated cylinder. In the final product, the separate openings in the lattice were closed by thin films of vulcanised synthetic rubber, which in addition to closing the interstices at the same time effectively prevented a relative displacement of the threads of the fabric. The product had a very high tensile strength, a good bending and breaking strength, excellent resistance to tearing and high impact resistance.
Example II A web according to FIG. 2 may for example be manufactured as follows:
A lattice material consisting of glass filaments No. 50 (180 denier), in which the warp and weft are laid one upon the other and are not woven and which has a filament spacing (warp and weft) of about 4 mm., immediately after leaving the machine used for the manufacture thereof (French Patent 1,208,968) is coated with a polyvinyl chloride plastisol (polyvinyl chloride in dioctylphthalate) with a content of 1% of hexamethylene-diisocyanate on a coating machine and thereafter subjected to doctoring. After drying in air and after a heat treatment, the openings in the lattice material are satisfactorily closed by thin films. The underside of the web thus obtained is then coated with a self-adhesive composition of known type consisting of rubber, resin, filler and age resistor, while the top surface is provided with a coating consisting of an adhesive-repelling composition based on silicone or based on polyvinyl stearate.
Adhesive tapes manufactured from the web exhibit excellent properties,
The flexible foil-like web reinforced with filaments or threads in accordance with the invention is distinguished by high tensile strength longitudinally and also (where high strength weft is used) transversely and high bending and impact strengths. The warp and weft threads are anchored to one another by the films of elastomeric material and cannot be displaced relatively to one another.
Tapes manufactured from the flexible foil-like web reinforced with filaments are suitable as a binding material for many industrial purposes, more especially for packing purposes.
The flexible foil-like web reinforced with filaments can also be used for packing and protecting purposes and is distinguished by a particularly good resistance to chemical action and weather influences.
Sheets or tapes consisting of the filament-reinforced flexible foil-like web in accordance with the invention, provided with an adhesive layer, have high strength values and can be used instead of banding irons for the closing of containers, boxes, cartons and also for banding heavy and bulky articles, for example bundles of rods.
What is claimed is:
An adhesive tape for high-strength packing comprising a filament-reinforced flexible foil-like web, of a largemesh lattice material consisting of synthetic filaments having a spacing of from 2 to 4 mm., in which the openings of the lattice are each closed by a thin film of an elastomeric plastic material, said film in each opening being thin in the center and increasing in thickness in a meniscus to the point of contact with the filaments and a coating of a pressure-sensitive adhesive on one side of the lattice material.
References Cited by the Examiner UNITED STATES PATENTS 1,580,287 4/26 Colle et a1. 117-98 1,953,901 4/34 Ziegler 117-98 2,038,325 4/36 iVan Cleef 117-68.5 2,451,865 10/48 OBrien 117-122 2,458,166 1/49 Homeyer 117-122 2,593,553 4/52 Francis 117-98 2,905,584 9/59 Dunlap 117-122 3,072,497 1/63 Guglielmo 117-49 3,085,027, 4/63 Porteous 117-163 FOREIGN PATENTS 790,159 2/58 Great Britain.
JOSEPH B. SPENCER, Primary Examiner.
RICHARD D. NEVIUS, Examiner,
US15536061 1960-11-28 1961-11-28 Flexible foil-like webs and method of making the same Expired - Lifetime US3214289A (en)

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US3850673A (en) * 1967-03-04 1974-11-26 Makin J & J Ltd Flexible sheet material
US6054205A (en) * 1997-05-29 2000-04-25 Clark-Schwebel Tech-Fab Company Glass fiber facing sheet and method of making same
US6368024B2 (en) 1998-09-29 2002-04-09 Certainteed Corporation Geotextile fabric
US20020137410A1 (en) * 2000-12-20 2002-09-26 Porter John Frederick Knitted fabric for insect screening
US20030234057A1 (en) * 2002-06-19 2003-12-25 Saint-Gobain Technical Fabrics Canada, Ltd. Inversion liner and liner components for conduits
US20040224584A1 (en) * 2003-05-08 2004-11-11 Techfab, Llc - Anderson, Sc Facing sheet of open mesh scrim and polymer film for cement boards
US7049251B2 (en) 2003-01-21 2006-05-23 Saint-Gobain Technical Fabrics Canada Ltd Facing material with controlled porosity for construction boards
US7478650B2 (en) 2002-06-19 2009-01-20 Saint-Gobain Technical Fabrics Canada, Ltd. Inversion liner and liner components for conduits
US7846278B2 (en) 2000-01-05 2010-12-07 Saint-Gobain Technical Fabrics America, Inc. Methods of making smooth reinforced cementitious boards

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FR2085480A2 (en) * 1970-04-24 1971-12-24 Picardie Lainiere Nautre Adhesive coating - applied to both faces of a fabric in one operation
FI801415A (en) * 1979-05-05 1980-11-06 Arthur Britton ARKMATERIAL
CN107090667A (en) * 2017-04-28 2017-08-25 合肥特丽洁卫生材料有限公司 A kind of grid lines, production method, equipment and application

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US2458166A (en) * 1944-06-27 1949-01-04 Kendall & Co Composite pressure-sensitive adhesive sheet material
US2451865A (en) * 1945-05-07 1948-10-19 Seamiess Rubber Company Adhesive material
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US2905584A (en) * 1955-05-25 1959-09-22 Johnson & Johnson Process for making a unified fibrous web
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Publication number Priority date Publication date Assignee Title
US3850673A (en) * 1967-03-04 1974-11-26 Makin J & J Ltd Flexible sheet material
US6054205A (en) * 1997-05-29 2000-04-25 Clark-Schwebel Tech-Fab Company Glass fiber facing sheet and method of making same
US6391131B1 (en) 1997-05-29 2002-05-21 Clark-Schwebel Tech-Fab Company Method of making glass fiber facing sheet
US6368024B2 (en) 1998-09-29 2002-04-09 Certainteed Corporation Geotextile fabric
US9017495B2 (en) 2000-01-05 2015-04-28 Saint-Gobain Adfors Canada, Ltd. Methods of making smooth reinforced cementitious boards
US7846278B2 (en) 2000-01-05 2010-12-07 Saint-Gobain Technical Fabrics America, Inc. Methods of making smooth reinforced cementitious boards
US20020137410A1 (en) * 2000-12-20 2002-09-26 Porter John Frederick Knitted fabric for insect screening
US6716774B2 (en) 2000-12-20 2004-04-06 Saint-Gobain Technical Fabrics Canada, Ltd. Knitted fabric for insect screening
US20040166750A1 (en) * 2000-12-20 2004-08-26 Porter John Frederick Knitted fabric for insect screening
US6852360B2 (en) * 2000-12-20 2005-02-08 Saint-Gobain Technical Fabrics Canada, Ltd. Knitted fabric for insect screening
US20030234057A1 (en) * 2002-06-19 2003-12-25 Saint-Gobain Technical Fabrics Canada, Ltd. Inversion liner and liner components for conduits
US7478650B2 (en) 2002-06-19 2009-01-20 Saint-Gobain Technical Fabrics Canada, Ltd. Inversion liner and liner components for conduits
US7300892B2 (en) 2003-01-21 2007-11-27 Saint-Gobain Technical Fabrics Canada, Ltd. Facing material with controlled porosity for construction boards
US7300515B2 (en) 2003-01-21 2007-11-27 Saint-Gobain Technical Fabrics Canada, Ltd Facing material with controlled porosity for construction boards
US7049251B2 (en) 2003-01-21 2006-05-23 Saint-Gobain Technical Fabrics Canada Ltd Facing material with controlled porosity for construction boards
US20040224584A1 (en) * 2003-05-08 2004-11-11 Techfab, Llc - Anderson, Sc Facing sheet of open mesh scrim and polymer film for cement boards

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CH382648A (en) 1964-09-30
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DE1240608B (en) 1967-05-18
BE608427A (en) 1962-01-15
FR1281346A (en) 1962-01-12

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