GB2103995A - Method of edging sheet materials - Google Patents

Method of edging sheet materials Download PDF

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Publication number
GB2103995A
GB2103995A GB08124989A GB8124989A GB2103995A GB 2103995 A GB2103995 A GB 2103995A GB 08124989 A GB08124989 A GB 08124989A GB 8124989 A GB8124989 A GB 8124989A GB 2103995 A GB2103995 A GB 2103995A
Authority
GB
United Kingdom
Prior art keywords
sheet
frame
sheet material
backing
edged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08124989A
Inventor
Wilfred Sparks
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.)
CMI PLASTICS Ltd
Original Assignee
CMI PLASTICS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CMI PLASTICS Ltd filed Critical CMI PLASTICS Ltd
Priority to GB08124989A priority Critical patent/GB2103995A/en
Publication of GB2103995A publication Critical patent/GB2103995A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00—Floor fabrics; Fastenings therefor
    • A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
    • A47G27/0243—Features of decorative rugs or carpets
    • A47G27/0268—Edge finishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B29C66/4722—Fixing strips to surfaces other than edge faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B29C48/155—Partial coating thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2012/00—Frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
    • B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
    • B32B2310/0812—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B32B2471/02—Carpets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels
    • B32B2607/02—Wall papers, wall coverings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carpets (AREA)

Abstract

A carpet or wall covering sheet material is edged to prevent deterioration of the edges. The edging is affected by laying the sheet material 11 over a backing sheet 12, applying a frame 14 to the upper surface 13 of the sheet material 11 and fusing the frame 14, the sheet material 11 and the backing sheet 12 together. Fusion may be by high frequency induction welding or by extrusion of the frame 14 in situ on the sheet material 11, and at the same time ribs 36 may be formed on the frame 14. The backing sheet 12 and frame 14 are of a thermoplastics material such as P.V.C. <IMAGE>

Description

SPECIFICATION Method of edging sheet materials This invention relates to a method of edging sheet materials so as to prevent or inhibit deterioration, cutting or splitting of the edges thereof. The invention has particular application in the context of floor and wall coverings such as carpets, mats, woven paper fabrics and the like.
Heretofore such coverings have been edged by stitching overedge, or by forming a seam which may be stitched or adhesively bonded. However, such a method of edging can be time consuming and costly.
It is an object of the present invention to provide a method of edge sheet materials which is simple, quick and relatively inexpensive.
The invention provides a method of edging sheet material comprising overlaying said sheet material on a backing sheet of a thermoplastics material, providing a frame, as herein defined, of a thermoplastics material to be disposed at the side of said sheet material remote from said backing sheet, and fusing said frame, sheet material and said backing sheet.
Herein a frame is defined as a strip or band of material extending around the periphery of the sheet material when cut to its desired shape.
The invention also provides an edged sheet material comprising said sheet material in overlying relationship with a backing sheet of thermoplastics material and a frame, as herein defined, of a thermoplastics material disposed at the side of said sheet material remote from said backing sheet, said frame, sheet material and said backing sheet being fused together.
The frame may be cut from a sheet of thermoplastics material and applied to said sheet material, in which case the fusing of the frame, sheet material and backing sheet may be by welding. Such welding may be high frequency electrical induction welding. Alternatively said frame may be formed in situ on said sheet materia by extrusion or flow moulding, in which case the fusing of the frame, sheet material and backing sheet may be performed simultaneously with the extrusion or flow moulding of the frame.
A further sheet of thermoplastics material may be disposed between said sheet material and said frame and fused therewith. Preferably said further sheet is transparent, or at least translucent.
Said sheet material and said backing sheet may be cut to a desired shape prior to the overlaying of the former on the latter. Alternatively the frame, sheet material and backing sheet may be cut to a desired shape after fusing thereof.
The backing sheet and frame may be any thermoplastic polymeric material, preferably P.V.C.
and the sheet material may be carpet of known type or may be a woven paper fabric. Particularly in the latter case the edged sheet material may include the further transparent or translucent sheet of thermoplastics material.
The invention will now be described with reference to the accompanying drawings in which:~ Fig. 1 is a sectional elevation of one embodiment, Fig. 2 is a sectional elevation of a second embodiment, Fig. 3 is a plan view of the embodiment of Fig.
1 or Fig. 2 and Fig. 4 illustrates on method producing the embodiments of Figs. 1 to 3.
Referring now to Fig. 1 there is shown a carpet or mat 10 comprising a carpet fabric 11 of any known form. Applied to the carpet fabric 11 is a backing sheet 12 of a thermoplastic material such as P.V.C. The backing sheet 12 may be applied to the carpet fabric by any known means, for example by adhesive bonding, fusion, needle punching or the like. Around the periphery of the mat or carpet 10, on the upper surface 13 remote from the backing sheet 12, is a frame 14 which is also of a thermoplastic material such as P.V.C. The frame 14, the carpet fabric 11 and the backing sheet 12 are fused together in the peripheral region of the mat or carpet 1 2 covered by the frame 14.
In the embodiment of Fig. 2 there is shown a mat or covering 20 comprising a fabric 21, which may be a carpet fabric of known form, as in the previous embodiment. However the embodiment of Fig. 2 is particularly suited to the case of a fabric 21 of woven paper. Such fabrics are usually woven from twisted strands of brightly coloured paper. Applied to the opposed faces of fabric 21 is a backing sheet 22 and a covering sheet 23, each of a thermoplastic material such as P.V.C. and the covering sheet 23 preferably being transparent or at least translucent so that the coloured strands of fabric 21 are visible. A frame 24 is applied to the periphery of the mat or covering 20, and the frame 24, the clear covering sheet 23, the fabric 21 and the backing sheet 22 are fused together in the region of frame 24.
Referring now to Fig. 3 there is shown a mat 10 or 20 having a frame 14 or 24 around its periphery. The frame 14, 24 has ribs 35 formed thereon during the fusing step, and provides a neat and decorative edge to the mat 10, 20 such as will prevent or at least inhibit deterioration of the edge of fabric 13 or 23 by wear, tearing, cutting or the like.
Referring now to Fig. 4 there is shown a mat 40 in the course of manufacture. The mat 40 comprises a backing sheet 42, a fabric 41 and a frame 44. A high frequency welding tool 46 is placed above the mat 40 and effects fusion of the thermoplastic materials of the frame 44 and backing sheet 42 to the fabric 41. Pressure may be applied to the mat 40 by the welding tool 46 so as to compress the mat 40 in the region of frame 44 and form ribs thereon as shown at 35 in Fig. 3, and for this purpose the electrodes 47 of tool 46 may be in the form of rollers or separate rollers may be provided adjacent the electrodes 47. In the method shown in Fig. 4 the frame 44 is applied to the fabric 41 in strip form and then fused thereto. As an alternative the material of frame 44 may be flow moulded onto the fabric 41 such that fusion occurs simultaneously. Again rollers may apply pressure to the frame 44 during the moulding and fusion step.
Other embodiments of the invention will be readily apparent to persons skilled in the art. For example pressure may be applied to the mats by means of a vertically movable press device instead of by means of rollers. As a further alternative the fusion steps may be effected by passing the mat between heated rollers or by pressure applied by a heated press device. The fabric, backing sheet and frame may be cut to shape prior to being applied to each other or the mat may be cut to shape after the fusion step.

Claims (26)

1. A method of edging sheet material comprising overlaying said sheet material on a backing sheet of a thermoplastics material, providing a frame, as herein defined, of a thermoplastics material, applying said frame to a face of said sheet material remote from said backing sheet and fusing said frame, said sheet material and said backing sheet.
2. A method according to claim 1 wherein said fusing is effected by welding.
3. A method according to claim 2 wherein said welding comprises high frequency electrical induction welding.
4. A method according to claim 1 wherein said frame is formed in situ on said sheet material by extrusion or flow moulding.
5. A method according to claim 4 wherein said fusing of said frame, said sheet material and said backing sheet is performed simultaneously with said forming of said frame on said sheet material.
6. A method according to any one of claims 1 to 5 comprising disposing a further sheet of a thermoplastics material between said sheet material and said frame.
7. A method according to claim 6 wherein said further sheet is at least partially transparent.
8. A method according to any one of claims 1 to 7 comprising cutting said sheet material and said backing sheet to a desired shape prior to overlaying thereof.
9. A method according to any one of claims 1 to 7 comprising cutting said frame, said sheet material and said backing sheet to a desired shape after fusing thereof.
10. A method according to any one of claims 1 to 9 comprising bonding said backing sheet to said sheet material prior to the application of said frame thereto.
11. A method according to claim 10 wherein said bonding is effected by means of an adhesive.
12. A method according to claim 10 wherein said bonding is effected by fusion.
13. A method according to claim 10 wherein said bonding is effected by needle punching.
14. A method according to any one of claims 1 to 13 comprising forming ribs on said frame during said fusing thereof to said sheet material and backing sheet.
15. A method of edging sheet material substantially as hereinbefore described.
16. An edged sheet material comprising said sheet material in overlying relationship with a backing sheet of a thermoplastics material, and a frame, as herein defined, of a thermoplastics material disposed at a face of said sheet material remote from said backing sheet, said frame, said sheet material and said backing sheet being fused together.
17. An edged sheet according to claim 16 comprising a further sheet of a thermoplastics material which is disposed between said sheet material and said frame.
18. An edged sheet according to claim 17 wherein said further sheet is at least partially transparent.
19. An edged sheet according to any one of claims 16 to 18 wherein said backing sheet is bonded to said sheet material by an adhesive.
20. An edged sheet according to any one of claims 16 to 18 wherein said backing sheet is bonded to said sheet material by needle punching.
21. An edged sheet according to any one of claims 16 to 20 wherein said frame has a plurality of ribs disposed therearound.
22. An edged sheet according to any one of claims 16 to 21 wherein said sheet material comprises a carpet fabric.
23. An edged sheet according to any one of claims 16 to 21 wherein said sheet material comprises a woven paper fabric.
24. An edged sheet material according to any one of claims 16 to 23 wherein said backing sheet is polyvinylchloride.
25. An edged sheet material according to any one of claims 16 to 24 wherein said frame is polyvinylchloride.
26. An edged sheet material substantially as hereinbefore described with reference to and as illustrated in Figs.1,2 or 3 of the accompanying drawings.
GB08124989A 1981-08-15 1981-08-15 Method of edging sheet materials Withdrawn GB2103995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08124989A GB2103995A (en) 1981-08-15 1981-08-15 Method of edging sheet materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08124989A GB2103995A (en) 1981-08-15 1981-08-15 Method of edging sheet materials

Publications (1)

Publication Number Publication Date
GB2103995A true GB2103995A (en) 1983-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB08124989A Withdrawn GB2103995A (en) 1981-08-15 1981-08-15 Method of edging sheet materials

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GB (1) GB2103995A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871404A1 (en) * 2004-06-15 2005-12-16 Cofraplex Sa Plastic panel, e.g. for filing, storage or decorative media, has decorative textile layer between layers of plastic, at least one being transparent
WO2023196383A1 (en) * 2022-04-05 2023-10-12 L'garde, Inc. System and methods for creating precision three dimensional surfaces from two dimensional material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871404A1 (en) * 2004-06-15 2005-12-16 Cofraplex Sa Plastic panel, e.g. for filing, storage or decorative media, has decorative textile layer between layers of plastic, at least one being transparent
WO2023196383A1 (en) * 2022-04-05 2023-10-12 L'garde, Inc. System and methods for creating precision three dimensional surfaces from two dimensional material

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