CA2093136A1 - Vacuum metallization of substrates - Google Patents
Vacuum metallization of substratesInfo
- Publication number
- CA2093136A1 CA2093136A1 CA 2093136 CA2093136A CA2093136A1 CA 2093136 A1 CA2093136 A1 CA 2093136A1 CA 2093136 CA2093136 CA 2093136 CA 2093136 A CA2093136 A CA 2093136A CA 2093136 A1 CA2093136 A1 CA 2093136A1
- Authority
- CA
- Canada
- Prior art keywords
- coating
- drum
- substrate
- paper
- premetallization
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/068—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using ionising radiations (gamma, X, electrons)
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/028—Physical treatment to alter the texture of the substrate surface, e.g. grinding, polishing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/02—Metal coatings
- D21H19/08—Metal coatings applied as vapour, e.g. in vacuum
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/16—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising curable or polymerisable compounds
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/22—Paper or cardboard
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides an apparatus which utilises a drum or cylinder for "casting" an electron-curable premetallisation coating onto a paper substrate. The premetallisation process comprises the steps of (a) coating a drum (24) with a liquid coating, said coating being performed by said drum contacting at least one roller (21) to supply said coating; (b) passing a paper substrate (18) over the drum in contact with the coating; (c) electron curing in a chamber (11) of an electron curing apparatus (12) of the coating whilst in situ on the surface of the drum; (d) removing the paper substrate from the drum surface. In another aspect of the invention the paper substrate is first coated and then passed over the drum and electron cured.
Description
: ~O 92/06243 2 0 ~ 3 1~ ~ PCl/AU91/00451 VACUUM MErALLlZATION OF SUPSTRATES
This invention relates to the vacuum metallization of substrates and more particularly to an apparatus for use in the vacuum metallization of substrates such as paper.
Various processes have been employed for the metal cladding of web or sheet substrates. The traditional process involves adhering a thin metal foil to a paper or board substrate, aluminium foil being most commonly used. This process has proved to be uncertain from an economy viewpoint since the cost of metal foil is a fluctuating commodity-sensitive item and because a relatively thick foil was necessary.
Another commonly used, and superlor process is that known as vacuum metallization, in which a vaporized metal is condensed onto a substrate to be metallized.
Other prior art processes have included so-called ~transfer metallization~
as described in U.S. Patent No. 4,215,170 (OLIVA), involving coating a substrate or a . transfer agent with a varnish, laminating substrate and transfer agent~ drying the 15 varnish and stripping the transfer agent from the substrate. Curing time for the varnish may be form 24 to 26 hours, which period seriously interferes with inspection and . subsequent treatment. This "time lag" problem was solved by radiation curing, that is to ' say, electron beam curing, of coatings and adhesives in the process of the metalliza~ion of `f paper substrates. Such a process including curing the varnish substantially 2 0 instantaneously wlth electron radiation is disclosed in lapsed Australian Patent Application No. 23174/84.
Two different paper me~alllzation process systems are currently is use, viz, direct metallizatlon and transfer metal!lzation.
This specification is concerned with direct metallization.
2 5 The process of transfer vacuum metallization is practised by the~deposition of metal, usually aluminium, (but not exclusively, as silver, gold, copper, ~in, platinum ~ etc. may be contemplated) in a vacuum chamber onto a plastic carrier web, and by the - subsequent transfer of the metai layer from the carrier web to the chossn paper - substrate by an adhesive laminating process. Finally, the carrier web is stripped by 3 0 delamination of the plastic.carrier web from the metal clad paper substrate.This process normally provides a metal clad paper surface which is a replica -~ of the surface condition of the carrier web on which the metal was originally deposited.
The stripping of the carrier web from the laminated paper structure is intended to occur without damage, thus enabling the carrier web to be eventually recycled.
.
: ' .
WO 92/06243 2 ~ 9 ~ i .3 ~ PCI'/AU91/00451 ~.~
.
The economic viability of the above metallizing process for paper is tcritically dependant on the number of process cycles through which the carrier web can be re-used.
When carried out in an effective manner, the visual quality of transfer 5 metallized paper is superior to the appearance of direct metallized paper. However, because of the unpredictable cost factor of carrier web re-cycling, the cost predicability and the relative cost of the direct process are, respectively, significantly higher and consis~ently lower than the transfer process.
Thus it will be appreciated that i~ is an object of the present invention to 10 overcome at least one disadvantage by the provision of a metallization process which glves the finished product substrate a visual quality advantage; the direct process being of a lower, more predictable cost.
According to one aspect of the present invention there is disclosed a premetallization process comprising the steps of:
1 5 ( a) coating a drum with a liquid coating, said coating being performed by said drum contacting at least one roller to supply said coating;
(b) passing a paper substrate over said drum, in contact with said coating;
( c ) electron curing said coating onto said substrate; and 2 0 ( d ) removing the coated and cured substrate by peeling from the drum surface .
This product can then be taken to the metallising process, after the application of which it is given a final top coating.
According to another aspect of the present invention there is disclosed a 25 metallization process wherein pressure is applied to said substrate to initiate contact said roller.
: - According to another aspect of the present invention there is disclosed a metallized paper product produced by a process having after final top coating a specular reflectance value of with the range of 45 units to 100 units, said value being determined 3 0 by illumination at an angle of 60 with- the reflection being received by a Dr. Lange gloss meter model RB60M. ~ 3--In order that a better understanding of the invention may be gained, preferred embodiments thereof will now be described, by way of example only and with reference to the accompanying drawings in which:- - - , ' ~VO 9~/06243 2 ~ ~ ~13 ~ PCI`~AU91/00451 .
Figure 1 illustrates schematically, a "state of the art" transfer vacuum metallization apparatus;
Figure 2 illustrates also schematically, a drum transfer or casting apparatus according ! the present invention; and Figure 3 illustrates a drum transfer process according to a further ' embodiment of the present invention.
It will be understood that the coating of films or coatings from cylindrical or drum-like surfaces, usually of polished or engraved metal, is a well-established art and has been commercially practised for both the coating of paper and the printing of 10 textiles, to name but two examples.
' This invention involves the employment of a somewhat similar drum adapted ' to supply high velocity electrons from an electron generator and for the drum to receive ' an electron-curable coating applied either directly to the drum surface or to the paper ~' web immediately prior to its contact with the drum surface, such coating being ;' 15 specifically formulated for later metallization.
The prior art transfer vacuum apparatus shown in Figure 1 comprises a ' vacuum metallized carrier web 1 - usually a plastic film - feeds from a carrier storage ' reel 2 to a coating station comprising an assembly of coating rollers 3, 4 and 5, the lowermost roller 5 rotating in a tank 6 of a suitable laminating adhesive. From the 2 0 coating station carrier web 1 with its adhesive coating 6 passes to a pair of laminating nip rollers 7 and 8 where it is "nip laminated~ with a paper substrate 9 wnich is fed from a paper storage reel 10. The completed web, that is to say the carrier web 1, adhesive coating 6 and paper substrate 9, then travel through a chamber 11 of anelectron-curing apparatus 12 where the adhesive coating layer 6 is substantially: 25 instantaneously cured.
The completed and cured web then pass between a pair of release nip rollers - 13 and 14 where the carrier web is stripped from the cured web and fed to a carrier storage reel 15 for re-use. The finished product 16 is fed to another storage reel 17 to .u await usage.
3 0 At this point it should be observed that such an- electron-curing apparatus as 12 utilizes either a heated filament or a gas plasma/cold cathode system-to generate a curtainn of electrons which penetrate the adhesive coating on the substrate web, which travels normal to-the longitudinal axis of the linear filament. The system. is self-shielded and its accelerating voltage limited to, say, 350 kv. ~ -:
' WO 92/06243 2 ~ 9 ~ Pcr/Au91/00451 ~
. 6 This invention therefore enables the manufacture of a mirror-like metallized paper or paperboard or alternatively an engraved or embossed surface finish is achievable or a combination of both could be applied by changing cylinders between pre-coating and post coating.
6 This process eliminates the recycled carrier web of the transfer metallization process, with the obvious benefit of cost predictably of this new version of the direct process of metallization.
Coatings of the free-radical polymerisation reactive type or of the cationic cure type, both involvlng electron irradiatlon for cure are essential in order to solidify ; 10 the liquid coatings more or less instantly (within 500 milliseconds) prior to their peel -~ removal from the drum surface.
From the above it will be realised by those who are skilled in the art that numerous variations and modifications may be made to the invention without departing from ~he spirit and scope thereof as described and illustrated hereinbefore.
' ~,.
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.;' .
... .
. . .
.
. .
:
- . ..
- ' , .
- - - - , . .....
. .
This invention relates to the vacuum metallization of substrates and more particularly to an apparatus for use in the vacuum metallization of substrates such as paper.
Various processes have been employed for the metal cladding of web or sheet substrates. The traditional process involves adhering a thin metal foil to a paper or board substrate, aluminium foil being most commonly used. This process has proved to be uncertain from an economy viewpoint since the cost of metal foil is a fluctuating commodity-sensitive item and because a relatively thick foil was necessary.
Another commonly used, and superlor process is that known as vacuum metallization, in which a vaporized metal is condensed onto a substrate to be metallized.
Other prior art processes have included so-called ~transfer metallization~
as described in U.S. Patent No. 4,215,170 (OLIVA), involving coating a substrate or a . transfer agent with a varnish, laminating substrate and transfer agent~ drying the 15 varnish and stripping the transfer agent from the substrate. Curing time for the varnish may be form 24 to 26 hours, which period seriously interferes with inspection and . subsequent treatment. This "time lag" problem was solved by radiation curing, that is to ' say, electron beam curing, of coatings and adhesives in the process of the metalliza~ion of `f paper substrates. Such a process including curing the varnish substantially 2 0 instantaneously wlth electron radiation is disclosed in lapsed Australian Patent Application No. 23174/84.
Two different paper me~alllzation process systems are currently is use, viz, direct metallizatlon and transfer metal!lzation.
This specification is concerned with direct metallization.
2 5 The process of transfer vacuum metallization is practised by the~deposition of metal, usually aluminium, (but not exclusively, as silver, gold, copper, ~in, platinum ~ etc. may be contemplated) in a vacuum chamber onto a plastic carrier web, and by the - subsequent transfer of the metai layer from the carrier web to the chossn paper - substrate by an adhesive laminating process. Finally, the carrier web is stripped by 3 0 delamination of the plastic.carrier web from the metal clad paper substrate.This process normally provides a metal clad paper surface which is a replica -~ of the surface condition of the carrier web on which the metal was originally deposited.
The stripping of the carrier web from the laminated paper structure is intended to occur without damage, thus enabling the carrier web to be eventually recycled.
.
: ' .
WO 92/06243 2 ~ 9 ~ i .3 ~ PCI'/AU91/00451 ~.~
.
The economic viability of the above metallizing process for paper is tcritically dependant on the number of process cycles through which the carrier web can be re-used.
When carried out in an effective manner, the visual quality of transfer 5 metallized paper is superior to the appearance of direct metallized paper. However, because of the unpredictable cost factor of carrier web re-cycling, the cost predicability and the relative cost of the direct process are, respectively, significantly higher and consis~ently lower than the transfer process.
Thus it will be appreciated that i~ is an object of the present invention to 10 overcome at least one disadvantage by the provision of a metallization process which glves the finished product substrate a visual quality advantage; the direct process being of a lower, more predictable cost.
According to one aspect of the present invention there is disclosed a premetallization process comprising the steps of:
1 5 ( a) coating a drum with a liquid coating, said coating being performed by said drum contacting at least one roller to supply said coating;
(b) passing a paper substrate over said drum, in contact with said coating;
( c ) electron curing said coating onto said substrate; and 2 0 ( d ) removing the coated and cured substrate by peeling from the drum surface .
This product can then be taken to the metallising process, after the application of which it is given a final top coating.
According to another aspect of the present invention there is disclosed a 25 metallization process wherein pressure is applied to said substrate to initiate contact said roller.
: - According to another aspect of the present invention there is disclosed a metallized paper product produced by a process having after final top coating a specular reflectance value of with the range of 45 units to 100 units, said value being determined 3 0 by illumination at an angle of 60 with- the reflection being received by a Dr. Lange gloss meter model RB60M. ~ 3--In order that a better understanding of the invention may be gained, preferred embodiments thereof will now be described, by way of example only and with reference to the accompanying drawings in which:- - - , ' ~VO 9~/06243 2 ~ ~ ~13 ~ PCI`~AU91/00451 .
Figure 1 illustrates schematically, a "state of the art" transfer vacuum metallization apparatus;
Figure 2 illustrates also schematically, a drum transfer or casting apparatus according ! the present invention; and Figure 3 illustrates a drum transfer process according to a further ' embodiment of the present invention.
It will be understood that the coating of films or coatings from cylindrical or drum-like surfaces, usually of polished or engraved metal, is a well-established art and has been commercially practised for both the coating of paper and the printing of 10 textiles, to name but two examples.
' This invention involves the employment of a somewhat similar drum adapted ' to supply high velocity electrons from an electron generator and for the drum to receive ' an electron-curable coating applied either directly to the drum surface or to the paper ~' web immediately prior to its contact with the drum surface, such coating being ;' 15 specifically formulated for later metallization.
The prior art transfer vacuum apparatus shown in Figure 1 comprises a ' vacuum metallized carrier web 1 - usually a plastic film - feeds from a carrier storage ' reel 2 to a coating station comprising an assembly of coating rollers 3, 4 and 5, the lowermost roller 5 rotating in a tank 6 of a suitable laminating adhesive. From the 2 0 coating station carrier web 1 with its adhesive coating 6 passes to a pair of laminating nip rollers 7 and 8 where it is "nip laminated~ with a paper substrate 9 wnich is fed from a paper storage reel 10. The completed web, that is to say the carrier web 1, adhesive coating 6 and paper substrate 9, then travel through a chamber 11 of anelectron-curing apparatus 12 where the adhesive coating layer 6 is substantially: 25 instantaneously cured.
The completed and cured web then pass between a pair of release nip rollers - 13 and 14 where the carrier web is stripped from the cured web and fed to a carrier storage reel 15 for re-use. The finished product 16 is fed to another storage reel 17 to .u await usage.
3 0 At this point it should be observed that such an- electron-curing apparatus as 12 utilizes either a heated filament or a gas plasma/cold cathode system-to generate a curtainn of electrons which penetrate the adhesive coating on the substrate web, which travels normal to-the longitudinal axis of the linear filament. The system. is self-shielded and its accelerating voltage limited to, say, 350 kv. ~ -:
' WO 92/06243 2 ~ 9 ~ Pcr/Au91/00451 ~
. 6 This invention therefore enables the manufacture of a mirror-like metallized paper or paperboard or alternatively an engraved or embossed surface finish is achievable or a combination of both could be applied by changing cylinders between pre-coating and post coating.
6 This process eliminates the recycled carrier web of the transfer metallization process, with the obvious benefit of cost predictably of this new version of the direct process of metallization.
Coatings of the free-radical polymerisation reactive type or of the cationic cure type, both involvlng electron irradiatlon for cure are essential in order to solidify ; 10 the liquid coatings more or less instantly (within 500 milliseconds) prior to their peel -~ removal from the drum surface.
From the above it will be realised by those who are skilled in the art that numerous variations and modifications may be made to the invention without departing from ~he spirit and scope thereof as described and illustrated hereinbefore.
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... .
. . .
.
. .
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- - - - , . .....
. .
Claims (9)
1. A premetallization process comprising the steps of:
(a) coating a drum with a liquid coating, said coating being performed by said drum contacting at least one roller to supply said coating;
(b) passing a paper substrate over said drum, in contact with said coating;
(c) electron curing said coating whilst in situ on the surface of said drum; and (d) removing said substrate from said drum surface.
(a) coating a drum with a liquid coating, said coating being performed by said drum contacting at least one roller to supply said coating;
(b) passing a paper substrate over said drum, in contact with said coating;
(c) electron curing said coating whilst in situ on the surface of said drum; and (d) removing said substrate from said drum surface.
2. A premetallization process as claimed in Claim 1 wherein said paper substrate is unwound from a roll and rewound onto another roll upon completion of the process.
3. A premetallization process as claimed in Claim 1 or 2 wherein pressure is applied to said substrate to initiate contactor or separation to or from said drum roller.
4. A metallization process comprising the steps of:
(a) coating a paper substrate with a liquid coating;
(b) passing said coated paper substrate over a drum, whereby said coating is located between said substrate and said drum;
(c) electron curing said coating whilst in situ on the surface of said drum; and (d) removing said substrate from said surface.
(a) coating a paper substrate with a liquid coating;
(b) passing said coated paper substrate over a drum, whereby said coating is located between said substrate and said drum;
(c) electron curing said coating whilst in situ on the surface of said drum; and (d) removing said substrate from said surface.
5. A premetallization process as claimed in Claim 4 wherein said paper substrate is unwound from a roll and rewound onto another roll upon completion of the process.
6. A premetallization process as claimed in Claim 4 or 5 wherein said substrate is coated by means of rollers.
7. A premetallization process as claimed in any one of Claims 4 to 6 wherein pressure is applied to said substrate to initiate contact or separation from said drum.
8. A high gloss metallized paper product produced by a process including a premetallization process as claimed in anyone of the preceding Claims having after metallizing and top coating a specular reflectance value in the range of 45 to 100 units, said value being determined by illumination at an angle of 60° with the reflection being received by a Dr. Lange gloss meter model RB60M.
9. A high gloss metallized paper product as claimed in Claim 8 wherein saidspecular reflectance value is greater than 75 units but less than 100 units.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPK2666 | 1990-10-05 | ||
| AUPK266690 | 1990-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2093136A1 true CA2093136A1 (en) | 1992-04-06 |
Family
ID=3774990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2093136 Abandoned CA2093136A1 (en) | 1990-10-05 | 1991-10-03 | Vacuum metallization of substrates |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0551360A4 (en) |
| JP (1) | JPH06501991A (en) |
| CA (1) | CA2093136A1 (en) |
| WO (1) | WO1992006243A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659652A (en) * | 2020-12-24 | 2021-04-16 | 武汉龙发包装有限公司 | Corrugated board and production line thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218004B1 (en) | 1995-04-06 | 2001-04-17 | David G. Shaw | Acrylate polymer coated sheet materials and method of production thereof |
| US5811183A (en) * | 1995-04-06 | 1998-09-22 | Shaw; David G. | Acrylate polymer release coated sheet materials and method of production thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1060277A (en) * | 1975-12-23 | 1979-08-14 | Youkichi Taniguchi | Metallized paper |
| US4177310A (en) * | 1978-07-27 | 1979-12-04 | King Seeley Thermos Company | Method of metallizing paper |
| US4490409A (en) * | 1982-09-07 | 1984-12-25 | Energy Sciences, Inc. | Process and apparatus for decorating the surfaces of electron irradiation cured coatings on radiation-sensitive substrates |
| US4435461A (en) * | 1982-10-19 | 1984-03-06 | Scott Paper Company | Method of providing a surface effect in a release paper product |
| AU557547B2 (en) * | 1984-08-29 | 1986-12-24 | National Starch & Chemical Corporation | Aqueous coating for meatllised paper |
| EP0267395A3 (en) * | 1986-10-15 | 1988-09-21 | National Starch and Chemical Corporation | Method of manufacture of highly reflective metallized paper |
| JPS63211382A (en) * | 1987-02-25 | 1988-09-02 | 花王株式会社 | Non-aqueous color darkening agent |
-
1991
- 1991-10-03 WO PCT/AU1991/000451 patent/WO1992006243A1/en not_active Application Discontinuation
- 1991-10-03 EP EP19910917623 patent/EP0551360A4/en not_active Withdrawn
- 1991-10-03 JP JP3516192A patent/JPH06501991A/en active Pending
- 1991-10-03 CA CA 2093136 patent/CA2093136A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659652A (en) * | 2020-12-24 | 2021-04-16 | 武汉龙发包装有限公司 | Corrugated board and production line thereof |
| CN112659652B (en) * | 2020-12-24 | 2022-09-09 | 武汉龙发包装有限公司 | Corrugated board and production line thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1992006243A1 (en) | 1992-04-16 |
| EP0551360A4 (en) | 1993-08-25 |
| JPH06501991A (en) | 1994-03-03 |
| EP0551360A1 (en) | 1993-07-21 |
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