GB2229442A - Multicoloured sheet material - Google Patents

Multicoloured sheet material Download PDF

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Publication number
GB2229442A
GB2229442A GB8901269A GB8901269A GB2229442A GB 2229442 A GB2229442 A GB 2229442A GB 8901269 A GB8901269 A GB 8901269A GB 8901269 A GB8901269 A GB 8901269A GB 2229442 A GB2229442 A GB 2229442A
Authority
GB
United Kingdom
Prior art keywords
sheet material
multicoloured
plastics
granules
sheet
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Withdrawn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
GB8901269A
Other versions
GB8901269D0 (en
Inventor
John Granville Kay
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.)
HALSTEAD JAMES Ltd
Original Assignee
HALSTEAD JAMES 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 HALSTEAD JAMES Ltd filed Critical HALSTEAD JAMES Ltd
Priority to GB8901269A priority Critical patent/GB2229442A/en
Publication of GB8901269D0 publication Critical patent/GB8901269D0/en
Publication of GB2229442A publication Critical patent/GB2229442A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/30—Making multilayered or multicoloured articles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0039—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by the physical or chemical aspects of the layers
    • D06N7/0057—Layers obtained by sintering or glueing the granules together
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Multicoloured plastics sheet material is manufactured by comminuting multicoloured plastics base sheet material to produce granules which are then recombined into coherent sheet form. The method produces a flooring material of improved appearance.

Description

IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF MULTICOLOURED FLOORING This invention relates to the production of multicoloured flooring.
It is well known to manufacture flooring from particulate thermoplastics material preferably polyvinyl chloride (PVC). In an example of the known technique particles known as chips of PVC are sprinkled onto a support web to form a layer of the required thickness which is then heated before entering a rotary press in which the softened chips weld together to form a coherent sheet which is then separated from the support web.
The finished sheet may have a variegated colour if it is made from different coloured chips blended in appropriate proportions. Highlighting chips, which may be translucent, may be included to improve the appearance of the finished product. However, the finished appearance is not entirely satisfactory and it is an object of the present invention to provide an improved method in which the final appearance is more acceptable.
Surprisingly, it has been found in accordance with the present invention that an improved product is obtained by reducing the variegated coloured sheet (made for example by the technique described above) to particles which are then recombined under heat and pressure for example using a rotary press.
An example of a method in accordance with the invention will now be described.
In the example highlighting chips are combined with a base sheet which is then size reduced to form chips or granules which are combined into a coherent flooring sheet. The highlighting chips are formulated and compounded utilising existing PVC compound technology. The PVC chips may be filled e.g. with calcium carbonate in an amount of 5 to 70% by weight. If filled the chips are relatively opaque and if unfilled they are translucent. They may be pigmented or unpigmented and may be of any size up to lOmm.
The base sheet is produced by combining base colours with the highlighting chips. For example, two base compounds A and B may be produced to the same basic recipe but preferably of different colours. The base compounds may be combined in equal proportions but if desired they may be mixed in different ratios of up to 3 to 1.
The highlighting chips are then added to the base sheet. As many as four different types or colours of highlighting chips may be used. The highlighting chips may account for as much as 10 to 25% of the total weight of the product. A typical combination would be : Base Compound A 40% Base Compound B 40% Highlight Chip C 10% Highlight Chip D 10% The base compounds and lightlight chips are combined with each other when hot (1300C to 1800C).
The method of combining the ingredients introduces a degree of intermixing. The resulting mixture is then converted into a sheet having a thickness between 0.9mm and 3.Omm using a calendar with extruder or similar equipment.
The base sheet so produced is cooled and converted into granules using standard equipment for size reduction e.g. a granulator. The granules can be in different size ranges e.g. O to 3mm, 2 to Smm, 4 to 8mm. In each case a different decorative effect is achieved.
Finally, the granules of a particular size range are combined into a coherent flooring sheet by sprinkling onto a support web into a layer which is heated and then subjected to pressure in a rotary press in which the particles well together to form a coherent sheet.

Claims (7)

1. Multicoloured plastics sheet material manufactured by comminuting multicoloured plastics base sheet material to produce granules which are recombined into coherent sheet form.
2. Sheet material as claimed in claim 1, wherein the granules are in different size ranges to produce different decorative effects.
3. Sheet material as claimed in claim 1 or 2, wherein the granules are recombined into coherent sheet form by sprinkling onto a support web into a layer which is heated and then subjected to pressure so as to weld the granules together.
4. Sheet material as claimed in any one of the preceding claims, wherein the base sheet material has a thickness of between 0.9mm and 3.0mm.
5. Sheet material as claimed in any one of the preceding claims, wherein the base sheet material is made by combining different coloured particles of plastics material using heat and pressure.
6. Sheet material as claimed in any one of the preceding claims, wherein the constituent plastics material is PVC.
7. Multicoloured plastics sheet material substantially as herein described.
GB8901269A 1989-01-20 1989-01-20 Multicoloured sheet material Withdrawn GB2229442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8901269A GB2229442A (en) 1989-01-20 1989-01-20 Multicoloured sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8901269A GB2229442A (en) 1989-01-20 1989-01-20 Multicoloured sheet material

Publications (2)

Publication Number Publication Date
GB8901269D0 GB8901269D0 (en) 1989-03-15
GB2229442A true GB2229442A (en) 1990-09-26

Family

ID=10650339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8901269A Withdrawn GB2229442A (en) 1989-01-20 1989-01-20 Multicoloured sheet material

Country Status (1)

Country Link
GB (1) GB2229442A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888859A1 (en) * 1997-07-04 1999-01-07 Sommer S.A. Flooring materials and method for their manufacture
FR2800004A1 (en) * 1998-10-20 2001-04-27 Saar Gummiwerk Gmbh Manufacturing rubber floor covering comprises spreading rubber particles, heating and vulcanizing under pressure
WO2011018097A1 (en) * 2009-08-11 2011-02-17 Armstrong Dlw Ag Plastic layer having a visible inner discontinuity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312363A (en) * 1969-03-06 1973-04-04 Norristown Rug Mfg Co Method of manufacturing pellets from polyvinyl chloride supported sheet or tube material
US4020020A (en) * 1975-06-17 1977-04-26 Armstrong Cork Company Method of treating waste sheet flooring
GB1510803A (en) * 1974-07-05 1978-05-17 Teijin Ltd Polyester granules
US4105593A (en) * 1977-07-08 1978-08-08 Armstrong Cork Company Method of reclaiming waste sheet flooring
EP0321760A1 (en) * 1987-12-19 1989-06-28 Ht Troplast Ag Homogeneous, multicoloured structured plastic film or panel, and process for its production

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1312363A (en) * 1969-03-06 1973-04-04 Norristown Rug Mfg Co Method of manufacturing pellets from polyvinyl chloride supported sheet or tube material
GB1510803A (en) * 1974-07-05 1978-05-17 Teijin Ltd Polyester granules
US4020020A (en) * 1975-06-17 1977-04-26 Armstrong Cork Company Method of treating waste sheet flooring
US4105593A (en) * 1977-07-08 1978-08-08 Armstrong Cork Company Method of reclaiming waste sheet flooring
EP0321760A1 (en) * 1987-12-19 1989-06-28 Ht Troplast Ag Homogeneous, multicoloured structured plastic film or panel, and process for its production

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Kunstoffe German Plastics 77(1987)11, (Munich), H. Schalles, *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888859A1 (en) * 1997-07-04 1999-01-07 Sommer S.A. Flooring materials and method for their manufacture
FR2800004A1 (en) * 1998-10-20 2001-04-27 Saar Gummiwerk Gmbh Manufacturing rubber floor covering comprises spreading rubber particles, heating and vulcanizing under pressure
WO2011018097A1 (en) * 2009-08-11 2011-02-17 Armstrong Dlw Ag Plastic layer having a visible inner discontinuity

Also Published As

Publication number Publication date
GB8901269D0 (en) 1989-03-15

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