CA2103280A1 - Multilayered printable sheet structure - Google Patents
Multilayered printable sheet structureInfo
- Publication number
- CA2103280A1 CA2103280A1 CA002103280A CA2103280A CA2103280A1 CA 2103280 A1 CA2103280 A1 CA 2103280A1 CA 002103280 A CA002103280 A CA 002103280A CA 2103280 A CA2103280 A CA 2103280A CA 2103280 A1 CA2103280 A1 CA 2103280A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- printable
- vinyl
- adhesive
- sheet structure
- 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.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
-
- 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
- B32B27/08—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 synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
-
- 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
- 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
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
-
- 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
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- 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
- B32B2519/00—Labels, badges
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/0201—Label sheets intended to be introduced in a printer, e.g. laser printer
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/023—Adhesive
- G09F2003/0232—Resistance to heat
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/023—Adhesive
- G09F2003/0233—Resistance to humidity
Abstract
A multilayered printable sheet structure comprising a self-adhesive film consisting of: (i) a vinyl base layer having a first and second surface; (ii) a printable layer bonded to said first surface, said printable layer including one or more fillers and/or pigments; and (iii) an adhesive layer on said second surface; and a backing sheet consisting of: (iv) a paper backing layer having a first and second surface; (v) an adhesive-release agent layer on said first surface intermediate said paper backing layer and said adhesive layer; and (vi) a moisture barrier layer on said second surface of said backing layer.
Description
W092/21119 21 0 3 2 8 ~ PCTtAU92/OQ21~
MULTILAYERED PRINTABLE SHEET STRUCTURE
This invention relates to a multilayered sheet structure and more particularly to a sheet structure incorporating a self adhesive label and backing sheet. It will be convenient to describe the invention with - referen~e to its applic~tion in outdoo-. situati~ns ~nd being printed upon by laser printer or photocopier.
However it should be n~ted that the invention has a wider application.
Various types of self-adhesive paper labels are known. Self-adhesive paper labels are, for e~ample, commonly used to provide address indicia for envelopes.
The address indicia may be printed on to such labels by means of offset printing or other conventional printin~
techniques; or alternatively, the labels may be blank and receptive to typed or hand written address indicia.
It will be appreciated that the usefulness of self-adhesive labels is not c~nfined to use on envelopes;
such labels are also used as "bumper stickers" or "decals". However, paper labels are not generally suitable for outdoor use because they do not have the required durability and resistance to weather, so outdoor self-adhesive labels are generally made from polymeric materials.
It is generally difficult to write or print onto polymeric materials because they are generally not as receptive to ir~k or other forms of marking as is paper.
Moreover, the inks which do print on polymeric materials generally utilize hazardous solvents. Thus labels suitable for outdoor use are normally pre-printed and do not allow a user to insert information of his choice, as do paper labels.
With the present widespread use of photocopiers and laser printers, and with the increasin~ availability of colour photocopiers and colour laser printers, it has become easy and convenient for people to create their own signs, posters and other graphic materials. In certain applications, the usefulness of such materials and designs WO92/21119 ~ l D 3 ? 8 0 PCT/AU92J00218 is enhanced if the medium on which they are printed is in the form of a self-adhesive label particularly on labels which are weatherproof.
A particular problem arises in the use of self-adhesive labels in conventional laser printers and photocopiers, in that laser printers and photocopiers normally operate by fusing toner onto the paper or other print medium, so that the print medium must be able to withstand a high temperature and pressure. This presents particular problems when the print medium is a self-adhesive label, in that the label, the adhesive, and the backing sheet must all be able to withstand the high temperatures and pressures.
Adhesives often break down at high temperatures, but adhesives which can withstand high temperatures are known. A more important problem is the provision of a backing sheet which can withstand high temperatures. A
common problem with backing sheets for self-adhesive labels is that they shrink or distort when subjected to high temperatures. This results in wrinkling or curling of the label. As modern laser printers and photocopiers require that the material being priIlted remain flat, such deformation leads to unsatisfactory performance of the printing onto the self-adhesive labels.
Accordingly, there is a need for a self-adhesive printable label suitable for outdoor use which can withstand the temperatures and pres6ures encountered in modern photocopiers and laser printers without deforming during the printing process.
Accordingly, the present invention provides a multilayered printable sheet structure comprising a self-adhesive film consisting of:-(i) a vinyl base layer having a first and second surface;
(ii) a printable layer bonded to said first surface, said printable layer including one or more fillers and/or pigments; and (iii) an adhesive layer on said second surface; and a backing sheet consisting of:-W O 92/21119 _ 3 _ 21 0 3 2 8 0 PC~r/A U92/0021X
(iv) a paper backing layer having a first and sec~nd surface;
(v) an adhesive-release agent layer on said first surface intermediate said paper backiny layer and said adhesive layer; and (vi) a moisture barrier layer on said second surface of said bac~ln~ la er.
The vinyl base layer may be of any suitable size, shape and thickness. The base layer must be of suitable thickness to impart sufficient strength to the film s~
that the film does not stretch or shrink excessively once removed from the backing sheet. The base layer may be of any width and length convenient for manufacture by way of conventional polymeric film manufacturing equipment.
Optionally, various modifiers may be added to the vinyl base layer to impart desirable characteristics to the layer. For example various ultraviolet stabilizers, plasticizers and pigments may be added to the base layer so to provide desired properties as is well known in the art.
A printable layer is bonded to one surface of the vinyl base layer. The printable layer is preferably capable of accepting toner used in conventional laser printers and photocopiers. Preferably it should also be sufficiently thermally stable so as not to deform when subjected to the temperatures and pressures normally encountered in such machines. In a preferred embodiment, the printable layer comprises a vinyl based lacquer including a filler and pi~ments. Suitable fillers may include cellulose to improve printability of the printable layer. The filler may act as a binder to bind pigment particles together and to the vinyl base layer and to assit adhesion of the printable layer to the base layer.
Suitable binders include poly(vinyl alcohol), acrylic based emulsions and poly(vinyl acetate~ suitable pigments include titanium dioxide, magnesium oxide, calcium carbonate, kaolin clays, and silicas. Coloured pigments may be included in the printable layer. In a preferred embodiment of the present invention the printable layer WO92/21119 PCT/AU92/0021~ ~
2103280 - 4 ~
comprises 85% to 95% vinyl, 1% to 10% cellulose, 1% to 5%
titanium dioxide and 1% to 5% magnesium oxide.
The adhesive layer is on the opposite side of the base layer to the printable layer. The adhesive may be any suitable temperature stable adhesive known in the art. Preferably, the adhesive is a permanent acrylic adhesive.
The backing sheet consists essentially of :-(i) a backing layer;
10(ii) an adhesive-release agent on one side of the backing layer; and (iii3 a moisture barrier layer on the opposite side of the backing layer.
The paper backing layer may be any suitable paper backing known in the art. The paper layer is preferably of suitable thickness and strength such that the backing sheet can be removed from the self-adhesive film in one piece. Preferably, the weight of the paper used in the paper layer is between 80 and 170 grams per square metre, 20most preferably between about 130 to 140 grams per square metre.
The adhesive-release agent layer is provided on the ~n side of the paper backing layer which contacts the adhesive layer on the self-adhesive film. The adhesive-release agent layer co-operates with the adhesive layer so that the backing sheet is removably bonded to the self-adhesive film during printing, but can be easily removed when the self-adhesive film is ready to be affised to an object. Preferably, the adhesive-release agent layer is a silicon based layer.
The moisture barrier layer is bonded to the paper backing layer on the opposite side to the adhesive-release agent layer. The moisture barrier layer is essential to enable t~e multilayered printable sheet structure to be printed upon in a laser printer or photocopier without deforming. By preventing moisture loss from the sheet structure subjected to the high temperatures of the printing machine, water loss from the sheet structure is minimized and thus curling of the sheet structure is WO 9~21119 2 1 D 3 ~ O PCT~AU92/0021X
thereby limited. This enables the products to remain flat which is critical during the laser printing operation~
Moreover, the- moisture barrier layer gives the multilayered printable sheet structure stability against variations in humidity or temperature. The moisture barrier layer may be formed from any suitable moisture resi~tan. compound sucll as p,'y-~inylid~l.e c~.oLiae, polyethylene, chlorinated vinyl-acrylate co-polymer. In a preferred embodiment, the moisture barrier layer comprises a PVDC emulsion comprising water, polyvinylidene chloride and one or more wetting agents. In a most preferred embodiment, the moisture barrier layer is applied to the paper backing layer as an emulsion which comprises about 70% water, 28% PVDC and about 2% wetting agents. A
suitable PVDC emulsion is Kuroform 193 D (recognized trade mark). Suitable wetting agents are Surfynol S.E. and Antarox LF222 (both recognized trade marks).
The invention will now be described in more detail with reference to the following example. It is to be understood that the example and following description relate to a preferred embodiment only, and is not intended to limit the scope of the present invention.
.. ..:
EXAMPLE
A printable layer is comprised of a vinyl based lacquer with the following additives:-: .
Component Quantity (parts) Vinyl based lacquer 100 Cellulose 5 Titanium dioxide 2.5 Magnesium oxide 2.5 The above ingredients are mixed together with highspeed stirring and coated onto a vinyl base layer by rotogravure coating. The printable layer is coated at a coating weight of 50 grams per square metre.
WO92/21119 21 0 3 ~ 8 0 PCT/AU92/00218 The printable layer and vinyl base layer are then heat fused together. This forms a stable synthetic substrate with a durable surface receptive to all forms of label printing.
A moisture barrier layer is prepared as follows:-- Component Ouantity (p~arts2 :
Water lO0 Kuroform 193 D (S5% PVDC, 45% water)lO0 Surfynol S.E. 2 Antarox 1F222 l The above ingredients are mixed gently to minimize foaming. The resulting emulsion which contains the wetting agents to facilitate smoothness of coating and surface texture is applied either by gravure coating or reverse gravure coatin~. The emulsion is applied to the paper layer at a coating weight of lO grams per square ~0 metre (dry weight).
The paper weight may be between 80 and 170 grams per square metre. Preferably, the paper weight is 130 grams per square metre. Prior to coating of the paper layer, dilution of the emulsion allows further penetration of the emulsion into the paper.
After coating, the structure is cured in a direct gas fired oven at 60 metres per minute web speed.
The (i) coated vinyl base la~er and printable layer and (ii) paper backing layer and moisture barrier layer are then laminated using a permanent acrylic adhesive using a transfer coating method known in the art to achieve the finished product.
It will be appreciated that various modifications, additions and~or alterations may be made to the structure previously described without departing from the ambit of the present invention.
MULTILAYERED PRINTABLE SHEET STRUCTURE
This invention relates to a multilayered sheet structure and more particularly to a sheet structure incorporating a self adhesive label and backing sheet. It will be convenient to describe the invention with - referen~e to its applic~tion in outdoo-. situati~ns ~nd being printed upon by laser printer or photocopier.
However it should be n~ted that the invention has a wider application.
Various types of self-adhesive paper labels are known. Self-adhesive paper labels are, for e~ample, commonly used to provide address indicia for envelopes.
The address indicia may be printed on to such labels by means of offset printing or other conventional printin~
techniques; or alternatively, the labels may be blank and receptive to typed or hand written address indicia.
It will be appreciated that the usefulness of self-adhesive labels is not c~nfined to use on envelopes;
such labels are also used as "bumper stickers" or "decals". However, paper labels are not generally suitable for outdoor use because they do not have the required durability and resistance to weather, so outdoor self-adhesive labels are generally made from polymeric materials.
It is generally difficult to write or print onto polymeric materials because they are generally not as receptive to ir~k or other forms of marking as is paper.
Moreover, the inks which do print on polymeric materials generally utilize hazardous solvents. Thus labels suitable for outdoor use are normally pre-printed and do not allow a user to insert information of his choice, as do paper labels.
With the present widespread use of photocopiers and laser printers, and with the increasin~ availability of colour photocopiers and colour laser printers, it has become easy and convenient for people to create their own signs, posters and other graphic materials. In certain applications, the usefulness of such materials and designs WO92/21119 ~ l D 3 ? 8 0 PCT/AU92J00218 is enhanced if the medium on which they are printed is in the form of a self-adhesive label particularly on labels which are weatherproof.
A particular problem arises in the use of self-adhesive labels in conventional laser printers and photocopiers, in that laser printers and photocopiers normally operate by fusing toner onto the paper or other print medium, so that the print medium must be able to withstand a high temperature and pressure. This presents particular problems when the print medium is a self-adhesive label, in that the label, the adhesive, and the backing sheet must all be able to withstand the high temperatures and pressures.
Adhesives often break down at high temperatures, but adhesives which can withstand high temperatures are known. A more important problem is the provision of a backing sheet which can withstand high temperatures. A
common problem with backing sheets for self-adhesive labels is that they shrink or distort when subjected to high temperatures. This results in wrinkling or curling of the label. As modern laser printers and photocopiers require that the material being priIlted remain flat, such deformation leads to unsatisfactory performance of the printing onto the self-adhesive labels.
Accordingly, there is a need for a self-adhesive printable label suitable for outdoor use which can withstand the temperatures and pres6ures encountered in modern photocopiers and laser printers without deforming during the printing process.
Accordingly, the present invention provides a multilayered printable sheet structure comprising a self-adhesive film consisting of:-(i) a vinyl base layer having a first and second surface;
(ii) a printable layer bonded to said first surface, said printable layer including one or more fillers and/or pigments; and (iii) an adhesive layer on said second surface; and a backing sheet consisting of:-W O 92/21119 _ 3 _ 21 0 3 2 8 0 PC~r/A U92/0021X
(iv) a paper backing layer having a first and sec~nd surface;
(v) an adhesive-release agent layer on said first surface intermediate said paper backiny layer and said adhesive layer; and (vi) a moisture barrier layer on said second surface of said bac~ln~ la er.
The vinyl base layer may be of any suitable size, shape and thickness. The base layer must be of suitable thickness to impart sufficient strength to the film s~
that the film does not stretch or shrink excessively once removed from the backing sheet. The base layer may be of any width and length convenient for manufacture by way of conventional polymeric film manufacturing equipment.
Optionally, various modifiers may be added to the vinyl base layer to impart desirable characteristics to the layer. For example various ultraviolet stabilizers, plasticizers and pigments may be added to the base layer so to provide desired properties as is well known in the art.
A printable layer is bonded to one surface of the vinyl base layer. The printable layer is preferably capable of accepting toner used in conventional laser printers and photocopiers. Preferably it should also be sufficiently thermally stable so as not to deform when subjected to the temperatures and pressures normally encountered in such machines. In a preferred embodiment, the printable layer comprises a vinyl based lacquer including a filler and pi~ments. Suitable fillers may include cellulose to improve printability of the printable layer. The filler may act as a binder to bind pigment particles together and to the vinyl base layer and to assit adhesion of the printable layer to the base layer.
Suitable binders include poly(vinyl alcohol), acrylic based emulsions and poly(vinyl acetate~ suitable pigments include titanium dioxide, magnesium oxide, calcium carbonate, kaolin clays, and silicas. Coloured pigments may be included in the printable layer. In a preferred embodiment of the present invention the printable layer WO92/21119 PCT/AU92/0021~ ~
2103280 - 4 ~
comprises 85% to 95% vinyl, 1% to 10% cellulose, 1% to 5%
titanium dioxide and 1% to 5% magnesium oxide.
The adhesive layer is on the opposite side of the base layer to the printable layer. The adhesive may be any suitable temperature stable adhesive known in the art. Preferably, the adhesive is a permanent acrylic adhesive.
The backing sheet consists essentially of :-(i) a backing layer;
10(ii) an adhesive-release agent on one side of the backing layer; and (iii3 a moisture barrier layer on the opposite side of the backing layer.
The paper backing layer may be any suitable paper backing known in the art. The paper layer is preferably of suitable thickness and strength such that the backing sheet can be removed from the self-adhesive film in one piece. Preferably, the weight of the paper used in the paper layer is between 80 and 170 grams per square metre, 20most preferably between about 130 to 140 grams per square metre.
The adhesive-release agent layer is provided on the ~n side of the paper backing layer which contacts the adhesive layer on the self-adhesive film. The adhesive-release agent layer co-operates with the adhesive layer so that the backing sheet is removably bonded to the self-adhesive film during printing, but can be easily removed when the self-adhesive film is ready to be affised to an object. Preferably, the adhesive-release agent layer is a silicon based layer.
The moisture barrier layer is bonded to the paper backing layer on the opposite side to the adhesive-release agent layer. The moisture barrier layer is essential to enable t~e multilayered printable sheet structure to be printed upon in a laser printer or photocopier without deforming. By preventing moisture loss from the sheet structure subjected to the high temperatures of the printing machine, water loss from the sheet structure is minimized and thus curling of the sheet structure is WO 9~21119 2 1 D 3 ~ O PCT~AU92/0021X
thereby limited. This enables the products to remain flat which is critical during the laser printing operation~
Moreover, the- moisture barrier layer gives the multilayered printable sheet structure stability against variations in humidity or temperature. The moisture barrier layer may be formed from any suitable moisture resi~tan. compound sucll as p,'y-~inylid~l.e c~.oLiae, polyethylene, chlorinated vinyl-acrylate co-polymer. In a preferred embodiment, the moisture barrier layer comprises a PVDC emulsion comprising water, polyvinylidene chloride and one or more wetting agents. In a most preferred embodiment, the moisture barrier layer is applied to the paper backing layer as an emulsion which comprises about 70% water, 28% PVDC and about 2% wetting agents. A
suitable PVDC emulsion is Kuroform 193 D (recognized trade mark). Suitable wetting agents are Surfynol S.E. and Antarox LF222 (both recognized trade marks).
The invention will now be described in more detail with reference to the following example. It is to be understood that the example and following description relate to a preferred embodiment only, and is not intended to limit the scope of the present invention.
.. ..:
EXAMPLE
A printable layer is comprised of a vinyl based lacquer with the following additives:-: .
Component Quantity (parts) Vinyl based lacquer 100 Cellulose 5 Titanium dioxide 2.5 Magnesium oxide 2.5 The above ingredients are mixed together with highspeed stirring and coated onto a vinyl base layer by rotogravure coating. The printable layer is coated at a coating weight of 50 grams per square metre.
WO92/21119 21 0 3 ~ 8 0 PCT/AU92/00218 The printable layer and vinyl base layer are then heat fused together. This forms a stable synthetic substrate with a durable surface receptive to all forms of label printing.
A moisture barrier layer is prepared as follows:-- Component Ouantity (p~arts2 :
Water lO0 Kuroform 193 D (S5% PVDC, 45% water)lO0 Surfynol S.E. 2 Antarox 1F222 l The above ingredients are mixed gently to minimize foaming. The resulting emulsion which contains the wetting agents to facilitate smoothness of coating and surface texture is applied either by gravure coating or reverse gravure coatin~. The emulsion is applied to the paper layer at a coating weight of lO grams per square ~0 metre (dry weight).
The paper weight may be between 80 and 170 grams per square metre. Preferably, the paper weight is 130 grams per square metre. Prior to coating of the paper layer, dilution of the emulsion allows further penetration of the emulsion into the paper.
After coating, the structure is cured in a direct gas fired oven at 60 metres per minute web speed.
The (i) coated vinyl base la~er and printable layer and (ii) paper backing layer and moisture barrier layer are then laminated using a permanent acrylic adhesive using a transfer coating method known in the art to achieve the finished product.
It will be appreciated that various modifications, additions and~or alterations may be made to the structure previously described without departing from the ambit of the present invention.
Claims (13)
1. A multilayered printable sheet structure comprising a self-adhesive film consisting of:-(i) a vinyl base layer having a first and second surface;
(ii) a printable layer bonded to said first surface, said printable layer including one or more fillers and/or pigments; and (iii) an adhesive layer on said second surface; and a backing sheet consisting of:-(iv) a paper backing layer having a first and second surface;
(v) an adhesive-release agent layer on said first surface intermediate said paper backing layer and said adhesive layer; and (vi) a moisture barrier layer on said second surface of said backing layer.
(ii) a printable layer bonded to said first surface, said printable layer including one or more fillers and/or pigments; and (iii) an adhesive layer on said second surface; and a backing sheet consisting of:-(iv) a paper backing layer having a first and second surface;
(v) an adhesive-release agent layer on said first surface intermediate said paper backing layer and said adhesive layer; and (vi) a moisture barrier layer on said second surface of said backing layer.
2. A multilayered printable sheet structure according to claim 1 wherein said printable layer includes one or more fillers and/or binders selected from the group consisting of cellulose, poly(vinyl)alcohol, acrylic-based emulsions, poly(vinyl acetate), titanium dioxide, magnesium oxide, calcium carbonate, kaolin clays and silicas.
3. A multilayered printable sheet structure according to claim 1 or 2 wherein the printable layer comprises between 85% to 95% vinyl, 1% to 10% cellulose, 1% to 5%
titanium dioxide and 1% to 5% magnesium oxide.
titanium dioxide and 1% to 5% magnesium oxide.
4. A multilayer printable sheet structure according to any one of claims 1 to 3 wherein said printable layer is coated onto said vinyl base layer at a coating weight of 50 grams per square metre.
5. A multilayered printable sheet structure according to any one of claims 1 to 4 wherein the moisture barrier layer is comprised of polyvinylidene chloride, polyethylene, or chlorinated vinyl-acrylate co-polymer, or a combination thereof.
6. A multilayered printable sheet structure according to claim 5 comprising polyvinylidene chloride and a wetting agent.
7. A multilayered printable sheet structure according to any one of claims 1 to 6 wherein said paper backing layer has a mass of between 80 and 170 grams per square metre.
8. A multilayered printable sheet structure according to any one of claims 1 to 7 wherein said sheet structure is capable of being printed upon by xerography.
9. A method of forming a multilayered printable sheet structure comprising the steps of:-(i) coating a mixture of a vinyl-based lacquer and one or more fillers and/or pigments onto a vinyl-base layer;
(ii) subjecting said vinyl-based layer and coating mixture to heat to fuse said layer and mixture;
(iii) coating a paper layer with a moisture barrier emulsion of polyvinylidene chloride and one or more surfactants and/or wetting agents;
(iv) curing said coated paper;
(v) applying an adhesive to the vinyl base layer;
(vi) applying an adhesive release agent to the uncoated side of coated paper; and (vii) adhering said adhesive to said adhesive release agent.
(ii) subjecting said vinyl-based layer and coating mixture to heat to fuse said layer and mixture;
(iii) coating a paper layer with a moisture barrier emulsion of polyvinylidene chloride and one or more surfactants and/or wetting agents;
(iv) curing said coated paper;
(v) applying an adhesive to the vinyl base layer;
(vi) applying an adhesive release agent to the uncoated side of coated paper; and (vii) adhering said adhesive to said adhesive release agent.
10. A method according to claim 9 wherein said mixture of vinyl based lacquer and fillers and/or pigments comprises between 85% to 95% by weight of vinyl, between 1% to 10% cellulose, between 1% to 5% by weight of titanium dioxide and between 1% to 5% by weight of magnesium oxide.
11. A method according to claim 9 or 10 wherein said moisture barrier emulsion comprises between 50% to 80% by weight of water, between 20% to 50% by weight of polyvinylidene chloride and between about 1% to 5% by weight of wetting agents.
12. A multilayer printable sheet structure substantially as hereinbefore described with reference to the example.
13. A method substantially as hereinbefore described with reference to the example.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPK6204 | 1991-05-17 | ||
| AUPK620491 | 1991-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2103280A1 true CA2103280A1 (en) | 1992-11-18 |
Family
ID=3775411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002103280A Abandoned CA2103280A1 (en) | 1991-05-17 | 1992-05-15 | Multilayered printable sheet structure |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA2103280A1 (en) |
| GB (1) | GB2273079B (en) |
| NZ (1) | NZ242781A (en) |
| WO (1) | WO1992021119A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5782494A (en) * | 1995-12-19 | 1998-07-21 | Minnesota Mining And Manufacturing Company | Desktop printer notes |
| GB2387564B (en) * | 2002-04-18 | 2005-09-14 | Cullen & Daley Ltd | Improved display device |
| BE1016201A3 (en) * | 2004-09-17 | 2006-05-02 | Unibind Cyprus Ltd | Sheet of printable self adhesive labels, has rough material sheet provided on one side of substrate for improving grip with transport mechanism inside printer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963851A (en) * | 1971-08-06 | 1976-06-15 | Kabushiki Kaisha Oji Yuka Goseishi Kenkyujo | Paper for adhesive stickers and the like |
| DE3102850A1 (en) * | 1980-02-08 | 1982-01-07 | Kimberly-Clark Corp., 54956 Neenah, Wis. | SELF-ADHESIVE LAMINATE CONSTRUCTION |
| DE8508203U1 (en) * | 1985-03-19 | 1985-06-13 | Zweckform Werk Gmbh, 8150 Holzkirchen | Layer composite with a label on a carrier |
| GB8516514D0 (en) * | 1985-06-29 | 1985-07-31 | Graig A B | Labels |
-
1992
- 1992-05-15 WO PCT/AU1992/000218 patent/WO1992021119A1/en active Application Filing
- 1992-05-15 CA CA002103280A patent/CA2103280A1/en not_active Abandoned
- 1992-05-15 GB GB9323173A patent/GB2273079B/en not_active Expired - Fee Related
- 1992-05-18 NZ NZ242781A patent/NZ242781A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB2273079B (en) | 1995-08-02 |
| GB2273079A (en) | 1994-06-08 |
| GB9323173D0 (en) | 1994-03-02 |
| NZ242781A (en) | 1994-02-25 |
| WO1992021119A1 (en) | 1992-11-26 |
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |