GB2072095A - A composite - Google Patents

A composite Download PDF

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Publication number
GB2072095A
GB2072095A GB8008615A GB8008615A GB2072095A GB 2072095 A GB2072095 A GB 2072095A GB 8008615 A GB8008615 A GB 8008615A GB 8008615 A GB8008615 A GB 8008615A GB 2072095 A GB2072095 A GB 2072095A
Authority
GB
United Kingdom
Prior art keywords
coating
metallic
belt
circulatable
composite
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
GB8008615A
Other versions
GB2072095B (en
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.)
PORTH TEXTILES Ltd
Original Assignee
PORTH TEXTILES 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 PORTH TEXTILES Ltd filed Critical PORTH TEXTILES Ltd
Priority to GB8008615A priority Critical patent/GB2072095B/en
Publication of GB2072095A publication Critical patent/GB2072095A/en
Application granted granted Critical
Publication of GB2072095B publication Critical patent/GB2072095B/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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
    • B32B37/20—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
    • 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
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/60—In a particular environment
    • B32B2309/68—Vacuum
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/02—Noble metals
    • B32B2311/08—Silver
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard

Abstract

A method of producing a composite comprises applying a metallic vapour in the presence of a partial vacuum to a moving surface, such as a coating provided on a circulating belt (2), to provide a metallic layer. The layer together with the coating, if used, is thereafter transferred by for example heated nip rollers (14) to continuously moving carrier material (16). The metallic vapour may be for example an aluminum, stainless steel, chrome or silver vapour and the belt may comprise rubber, stainless steel or polytetrafluoroethylene glass fibre or film or carbon fibre or film. <IMAGE>

Description

SPECIFICATION A composite The present invention relates to an apparatus for and a method of producing a composite comprising a carrier and a metallic layer.
According to one aspect of the present invention there is provided a method of producing a compo ) site, comprising the steps of applying a metallic vapour in the presence of a vacuum to a moving surface to provide a layer thereon and thereafter continuously transferring at least the layer to a con tinuously moving carrier material to produce the composite.
The moving surface may comprise the surface of a coating which has been applied to the circumferen tial surface of a circulating belt, both the metallic layer and the coating together being subsequently transferred to the carrier material.
The coating may be dried by hot air prior to the application of the metallic medium.
The metallic vapur may comprise aluminium, chrome, stainless steel, silver gold or metal amal gams. The carrier material may comprise paper, board or plastics material.
The coating which may be in the form of a lacquer may act as a release agent for the transference of the metallic layer to the carrier material and/or as a pro tective coat on the surface of metallic layer after it has been transferred to the carrier and/or as a bond ing agent for the metallic layer on the carrier mater ial.
According to another aspect of the present inven tion there is provided an apparatus for producing a composite, comprising a circulatable member, means to direct a metallic vapour in the presence of a vacuum in a vacuum chamber towards the peripheral surface of the circulatable member and to provide a metallic layer supported by at least the circulatable member, means to feed carrier material towards and away from the circulatable member, and means to continuously transfer the metallic layer to the carrier material to produce the compo site.
The vacuum may be between 5 x 10-3 and 5 x 1 rio atmospheres.
The circulatable member may comprise a belt which may comprise stainless steel, rubber, polytet rafluoroethylene, stainless steel lined with polytetra fluoroethylene, glass, glass fibre, carbon or other suitable materials which preferably do not outgas in e vacuum.
The apparatus may comprise means such as an extrusion head, transfer rollers, a print system or powder technology for applying a coating to the sur face of the belt priortothe application of the metallic medium.
The apparatus may comprise a heater to dry the coating by for example hot air or electron beam cur ing means to cure the coating prior to the application of the metallic medium.
The means for transferring the metallic layer may comprise heatable nip rollers.
Means may be provided for drying or curing the coating after application of the metallic vapour and either prior to or after transfer to the carrier.
An embodiment of the present invention will now be more particularly described by way of example and with reference to the accompanying drawings in which: Fig. 1 shows an embodiment of an apparatus for producing a composite comprising a paper carrier, a metallic layer carried by the carrier and a lacquer coating covering the metallic layer, and Fig. 2 shows a section through such a composite produced bathe apparatus shown in Fig. 1.
Referring to the accompanying drawings, Fig. 1 shows an apparatus comprising a circulatable belt 2 which may be made from glass, glass fibre, carbon fibre, stainless steel, plastics material, rubber, polytetrafluoroethylene or other suitable materials.
In the region of an upper portion of the belt a coating head 4 is provided for applying a coating such as a lacquer coating to the surface of the belt 2 as it circulates. Beyond the coating head 4 in the direction of circulation of the belt, a heating and/or curing element 6 is provided for drying and/or curing the lacquer coating by hot air or electron beam means respectively. As the belt continues to circulate the dry lacquer coating passes through an air-to-air vacuum metallising device comprising air traps 8, two outer vacuum chambers 10 and an inner vacuum and metallising boat chamber 12. Whilst passing through the metallising device, a metallic medium such as chrome, silver, stainless steel or aluminium, carried in boats is vaporised and applied in the presence of a vacuum, to the surface of the lacquer coating which has previously been applied to the belt 2.
The vaporisation temperature of aluminium, chrome, stainless steel, silver and gold are 1400-1450"C, 1850-1903"C, 1800"C, 1200-13000C, and 1600-1700 C respectively. The metallic vapour forms a continuous layer on the lacquer coating as the belt circulates through the metallising device.
Beyond the metallising device in the circulating direction of the belt a pair of heated nip rollers 14 is provided. On passing through the nip rollers 14, the metallic layer and the lacquer coating are transferred from the belt 2 onto the surface of a carrier material 16, such as a web of paper, which is continuously being unwound from a roll 18 thereof. The carrier material 16 passes between the nip rollers 14 where it receives the metallic layer and the lacquer coating and thereafter the composite comprising the carrier material, the metallic layer and the lacquer coating may be cured and treated in unit 23. The composite is then wound onto a roll 20.
Afterthe metallic layer and the lacquer coating have been transferred from the belt 2 to the carrier material 16, the belt passes a cleaning head 22 where the belt 2 is cleaned prior to the subsequent application of further lacquer from the coating head 4.
In order to control the temperature of the belt 2 to acceptable levels a plurality of cooling rolis 24 are disposed around the inner peripheral surface of the belt 2.
Fig. 2 shows a section through the composite pro duced by the apparatus shown in Fig. 1 and clearly illustrates a laminate of the carrier material, the metallic layer and the lacquer coating.
The reason forapplying a lacquer coating to the belt 2 is that it acts as a release agent when transferring the metallic layer to the carrier material and as a protection layer on the composite.
Although the coating has been described as being applied to the belt by an extrusion head, the coating could be applied by the use of for example by a transfer roller process, a print system, powdertechnology or in any other suitable way.
Although a composite has been produced with the above described apparatus by applying a coating to the belt 2, it may be possible to omit the step of applying a coating and instead apply the metallic medium directly to the belt. In order to do this the belt and the metallic medium must be such that the metallic layer can be removed from the belt during the transfer operation without the need for a release agent. Although by no means certain, it may be possibleforexampleto remove an aluminium layer from a belt having a polytetrafluoroethylene (PTFE) surface, such as a stainless steel belt provided with a PTFE layer.

Claims (23)

1. A method of producing a composite, comprising the steps of applying a metallic vapour in the presence of a vacuum to a moving surface to provide a layer thereon and thereafter continuously transferring at leastthe layer to a continuously moving carrier material to produce the composite.
2. A method as claimed in claim 1, comprising the steps of providing a coating on the peripheral surface of a circulating belt, applying the metallic vapour to the coating and transferring the metallic layer and the seating together to the carrier material.
3. A method as claimed in claim 2, comprising the step of at least one of drying and curing the coating prior to the step of applying the metallic vapour.
4. A method as claimed in either claim 2 or claim 3, comprising the step of at least one of drying and curing the coating after the step of applying the metallic vapour and prior to the transferring step.
5. A method as claimed in any one of claims 2 to 4 comprising the step of at least one of drying and curing the coating after the transferring step.
6. A method as claimed in any one of claims 3 to 5, wherein the drying step if used comprises the application of hot air.
7. A method as claimed in any one of claims 3 to 6, wherein the curing step if used comprises electron beam curing.
8. A method as claimed in any one of the preceding claims, wherein the metallic vapour comprises one of aluminium, chrome, gold, silver and stainless steel.
9. A method of producing a composite, substantially as hereinbefore described with reference to the accompanying drawings.
10. Acomposite produced by the method as claimed in any one of the preceding claims.
11. An apparatus for producing a composite, comprising a circulatable member means to provide and direct a metallic vapour in the presence of a vacuum in a vacuum chamber towards the peripheral surface of the circulatable member and to provide a metallic layer supported by at least the circulatable member, means to feed carrier material towards and away from the circulatable member, and means to continuously transfer the metallic layer to the carrier material to provide the composite.
12. An apparatus as claimed in claim 11,wherein the circulatable member comprises a belt arranged to continuously pass through the vacuum chamber.
13. An apparatus as claimed in claim 12, wherein the belt comprises rubber.
14. An apparatus as claimed in claim 12, wherein the belt comprises stainless steel.
15. An apparatus as claimed in claim 12, wherein the belt comprises polytetrafluoethylene.
16. An apparatus as claimed in any one of the claims 11 to 15, wherein the means to transfer the metallic layer comprises heatable nip rollers.
17. An apparatus as claimed in any one of claims 11 to 16, comprising means to provide a coating on the circulatable member prior to the application of the metallic vapour.
18. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises an extrusion head.
19. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises at least one of transfer roller, gravure and flexographic means.
20. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises a printing system.
21. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises powder means.
22. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises electrostatic deposition means.
23. An apparatus as claimed in claim 17, wherein the means to provide a coating comprises spray means.
GB8008615A 1980-03-13 1980-03-13 Composite Expired GB2072095B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8008615A GB2072095B (en) 1980-03-13 1980-03-13 Composite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8008615A GB2072095B (en) 1980-03-13 1980-03-13 Composite

Publications (2)

Publication Number Publication Date
GB2072095A true GB2072095A (en) 1981-09-30
GB2072095B GB2072095B (en) 1984-02-29

Family

ID=10512081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8008615A Expired GB2072095B (en) 1980-03-13 1980-03-13 Composite

Country Status (1)

Country Link
GB (1) GB2072095B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020999A1 (en) * 1990-07-02 1992-01-09 Tvg Thermo Vac Entwicklungs Gm Continuous process for vacuum coated lacquered paper - has laminate built-up on endless steel carrier and then peeled off
FR2726788A1 (en) * 1994-11-10 1996-05-15 Packart Prodn. process for composite bag with partial metallised surface
US6270840B1 (en) 1998-09-28 2001-08-07 Weinert Vakuum Verfahrenstechnik Gmbh Apparatus and method for producing plane-parallel flakes
FR2813555A1 (en) * 2000-09-04 2002-03-08 Rexam Beaute Metallisation PROCESS FOR GIVING A SEMI-TRANSPARENT METALLIZED APPEARANCE TO CASE OR COSMETIC PACKAGING PARTS AND PARTS THUS OBTAINED

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020999A1 (en) * 1990-07-02 1992-01-09 Tvg Thermo Vac Entwicklungs Gm Continuous process for vacuum coated lacquered paper - has laminate built-up on endless steel carrier and then peeled off
FR2726788A1 (en) * 1994-11-10 1996-05-15 Packart Prodn. process for composite bag with partial metallised surface
US6270840B1 (en) 1998-09-28 2001-08-07 Weinert Vakuum Verfahrenstechnik Gmbh Apparatus and method for producing plane-parallel flakes
FR2813555A1 (en) * 2000-09-04 2002-03-08 Rexam Beaute Metallisation PROCESS FOR GIVING A SEMI-TRANSPARENT METALLIZED APPEARANCE TO CASE OR COSMETIC PACKAGING PARTS AND PARTS THUS OBTAINED
WO2002020282A1 (en) * 2000-09-04 2002-03-14 Rexam Beaute Metallisation Method for providing a semitransparent metallic aspect to cosmetic case or compact components and resulting components
US6946162B2 (en) 2000-09-04 2005-09-20 Rexam Beaute Mettallisation Method for providing a semitransparent metallic aspect to cosmetic case or compact components and resulting components

Also Published As

Publication number Publication date
GB2072095B (en) 1984-02-29

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee