GB2109302A - Sheet material - Google Patents

Sheet material Download PDF

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Publication number
GB2109302A
GB2109302A GB08227295A GB8227295A GB2109302A GB 2109302 A GB2109302 A GB 2109302A GB 08227295 A GB08227295 A GB 08227295A GB 8227295 A GB8227295 A GB 8227295A GB 2109302 A GB2109302 A GB 2109302A
Authority
GB
United Kingdom
Prior art keywords
sheet material
material according
middle layer
laminate
layers
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.)
Granted
Application number
GB08227295A
Other versions
GB2109302B (en
Inventor
John Daniel Garner
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.)
CHARS DISPLAY
Original Assignee
CHARS DISPLAY
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 CHARS DISPLAY filed Critical CHARS DISPLAY
Priority to GB08227295A priority Critical patent/GB2109302B/en
Publication of GB2109302A publication Critical patent/GB2109302A/en
Application granted granted Critical
Publication of GB2109302B publication Critical patent/GB2109302B/en
Expired 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/36—Printing on other surfaces than ordinary paper on pretreated paper, e.g. parchment, oiled paper, paper for registration purposes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/32—Multi-ply with materials applied between the sheets
    • D21H27/34—Continuous materials, e.g. filaments, sheets, nets
    • D21H27/36—Films made from synthetic macromolecular compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/402—Coloured
    • B32B2307/404—Multi-coloured

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Abstract

To achieve improved opacity paper sheet for print or typing comprises a laminate of two outer paper sheets (1) with an opaque interliner (2). The inter- liner may be of plastics and the laminate is bonded together by heat sealing or adhesives. The thickness of the layers must be such that the laminate is sufficiently flexible to pass through a printing machine. <IMAGE>

Description

SPECIFICATION Sheet material This invention relates to sheet material which is opaque for the purposes for example, of receiving print or typescript or for wrapping light sensitive articles such as unexposed photographic film or some foodstuffs.
In accordance with the invention, sheet material comprises a three-layer laminate, the outer layers of the laminate being made of paper, and the middle layer of which is opaque.
The paper of the outer layers is preferably of a gauge between 30 and 200 grams per square metre.
Each of the outer layers may be white or coloured, and, if required, the two layers may be of different colours.
Among the materials suitable for the middle layer are polythene, vapour coated polypropylene, and a ferric oxide or magnetic oxide composition. To achieve maximum opacity, the inter-liner is coloured black, but other colours may be employed.
The three layers are bonded together by a suitable adhesive, or by heat sealing if the interliner is of a thermoplastics material. Sheet material in which a ferric oxide composite is present in the middle layer has been found to be capable of retaining magnetic images similarly to recording tape.
Sheet material in accordance with the invention is capable of providing a degree of opacity greater than that found in conventional papers with the result that printing on either exterior surface is not apparent on the reverse surface even when the material is held up to strong light. In addition the two exterior surfaces can be differently coloured. Furthermore the material can be employed as a protective cover for materials which are sensitive to or adversely affected by light, e.g. photosensitive materials and some foodstuffs.
The accompanying drawings shows a diagramma tic cross section of an embodiment of the invention.
The sheet material shown in the drawing comprises two outer layers 1 of paper separated by an interliner 2 of black polythene. The paper layers are bonded to the interliner by heat sealing.

Claims (9)

1. Sheet material comprising a three-layer laminate, the outer layers of the laminate being made of paper, and the middle layer of which is opaque.
2. Sheet material according to claim 1 in which the outer layers each are of a gauge between 60 and 200 grams per square metre.
3. Sheet material according to claims 1 or 2 wherein the outer layers are differently coloured.
4. Sheet material according to any of claims 1-3 wherein the middle layer is polythene or vapour coated polypropylene.
5. Sheet material according to any of claims 1-4 wherein the middle layer is coloured black.
6. Sheet material according to any of claims 1-3 wherein the middle layer contains a ferric oxide of magnetic oxide composition.
7. Sheet material according to any of claims 1-6 wherein the layers are bonded together by adhesive between their respective facing surfaces.
8. Sheet material according to any one of the preceding claims wherein the middle layer is thermoplastic and the layers are bonded together by heat sealing.
9. Sheet material for receiving print or typescript constructed and arranged substantially as herein be fore described and shown in the accompanying drawing.
GB08227295A 1981-10-01 1982-09-24 Sheet material Expired GB2109302B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08227295A GB2109302B (en) 1981-10-01 1982-09-24 Sheet material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8129692 1981-10-01
GB08227295A GB2109302B (en) 1981-10-01 1982-09-24 Sheet material

Publications (2)

Publication Number Publication Date
GB2109302A true GB2109302A (en) 1983-06-02
GB2109302B GB2109302B (en) 1985-01-16

Family

ID=26280870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08227295A Expired GB2109302B (en) 1981-10-01 1982-09-24 Sheet material

Country Status (1)

Country Link
GB (1) GB2109302B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374087A2 (en) * 1988-12-16 1990-06-20 Kabushiki Kaisha Challenge Five Sealed letters, postcards and the like confidential sheets, and paper, continuous form or document sheet for preparing same
DE9007188U1 (en) * 1990-05-29 1991-06-27 SVD Verpackungen GmbH, 48683 Ahaus Kraft paper bag
GB2282104A (en) * 1993-09-13 1995-03-29 Pollard Banknote Ltd Opaque substrate material for lottery tickets
NL1002379C2 (en) * 1996-02-19 1997-08-20 Sallmetall Bv Printable foil.
WO2003102926A1 (en) * 2002-05-29 2003-12-11 Arjo Wiggins Limited Multi-layer sheet product
US7056861B2 (en) 2000-06-02 2006-06-06 Wolfgang Bossert Flat material especially in the form of a sheet or a strip and device for writing on said material
WO2010093311A1 (en) * 2009-02-16 2010-08-19 Stora Enso Ab Process for the production of paper or paperboard
FR3028210A1 (en) * 2014-11-07 2016-05-13 Canson TWO-SIDED PLAN HOLDER FOR WRITING OR DRAWING
FR3037276A1 (en) * 2015-06-09 2016-12-16 Canson TWO-SIDED PLAN HOLDER FOR HAND WRITING OR DRAWING
US10354561B2 (en) * 2007-09-07 2019-07-16 Ccl Label, Inc. Block out label, label sheet, and related method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0374087A3 (en) * 1988-12-16 1991-07-31 Kabushiki Kaisha Challenge Five Sealed letters, postcards and the like confidential sheets, and paper, continuous form or document sheet for preparing same
EP0374087A2 (en) * 1988-12-16 1990-06-20 Kabushiki Kaisha Challenge Five Sealed letters, postcards and the like confidential sheets, and paper, continuous form or document sheet for preparing same
DE9007188U1 (en) * 1990-05-29 1991-06-27 SVD Verpackungen GmbH, 48683 Ahaus Kraft paper bag
GB2282104A (en) * 1993-09-13 1995-03-29 Pollard Banknote Ltd Opaque substrate material for lottery tickets
NL1002379C2 (en) * 1996-02-19 1997-08-20 Sallmetall Bv Printable foil.
WO1997029916A1 (en) * 1996-02-19 1997-08-21 Sallmetall B.V. Printable foil
US7056861B2 (en) 2000-06-02 2006-06-06 Wolfgang Bossert Flat material especially in the form of a sheet or a strip and device for writing on said material
WO2003102926A1 (en) * 2002-05-29 2003-12-11 Arjo Wiggins Limited Multi-layer sheet product
US10354561B2 (en) * 2007-09-07 2019-07-16 Ccl Label, Inc. Block out label, label sheet, and related method
WO2010093311A1 (en) * 2009-02-16 2010-08-19 Stora Enso Ab Process for the production of paper or paperboard
US8512517B2 (en) 2009-02-16 2013-08-20 Stora Enso Ab Process for the production of paper or paperboard
CN102317539B (en) * 2009-02-16 2014-02-12 斯托拉恩索公司 Process for production of multilayer paper or paperboard product and headbox
FR3028210A1 (en) * 2014-11-07 2016-05-13 Canson TWO-SIDED PLAN HOLDER FOR WRITING OR DRAWING
FR3037276A1 (en) * 2015-06-09 2016-12-16 Canson TWO-SIDED PLAN HOLDER FOR HAND WRITING OR DRAWING
FR3037275A1 (en) * 2015-06-09 2016-12-16 Canson TWO-SIDED PLAN HOLDER FOR HAND WRITING OR DRAWING

Also Published As

Publication number Publication date
GB2109302B (en) 1985-01-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20020923