Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1997-09-15
2000-10-24
Crispino, Richard
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156240, 156247, 156285, 156286, 101 33, 101 34, 428195, 428202, 428204, 428914, B44C 1165, B29C 6320, B32B 506, B41M 312
Patent
active
061361267
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
This invention relates to a process and the relevant apparatus for the realization of articles or parts from metal, painted and/or variously decorated, particularly from aluminium alloy, comprising extruded or drawn semifinished products, also of large size, or bent or shaped sheets, even of large size, in particular to be used in building and in the field of the production of domestic appliances, such as refrigerators, washing machines and the like.
More particularly, said process allows to obtain surface finishings which reproduce accurately the aspect of various materials, such as the grains of wood and veins of marble or other patterns, as well as to transfer on the part and/or the surface of the extruded or drawn profiles or the shaped sheets any ornamental pattern, even a complicated one, without deformations or defects of the same pattern.
This invention also, relates to an apparatus which allows to realize said decorated articles.
As is known, the processes of the known art for the realization of the decoration on metals involves realization difficulties and complexities due to the fact that they require more or less automatized installations which operate on the flat surface of strips or sheets.
Besides, other processes and apparatuses are known for the realization of one-colour painting of metal articles, for instance parts or profiles from aluminium alloy, which consist, for instance, in electro-colouring processes, very complicated and expensive, or processes based on the technique of the transfer of a multi-colour pattern from a support carrying the pattern to a flat surface, from metal or fabric or other materials, by a contemporaneous action of pressure and temperature, carried out sometimes continuously by means of heated calenders.
Processes and associated apparatuses are also known which allow the realization of multi-colour and complicated decorations on articles of various type and having also a surface other than flat by the technique of the transfer of a pattern from a flexible support to the whole surface of the article by ink sublimation. As is known, such technique consists in wrapping the article with a support comprising the sublimable decoration, usually from paper, in introducing the article wrapped in the paper support into a container made up by two elastically deformable membranes fixed to two substantially rectangular frames hinged to one another, in making the vacuum in said container so that the flexible membranes adhere to the article, crushing the support against the surface of the articles. The pressure and the heat may be obtained also in an oil bath oven. In this case, the article to be decorated, suitably wrapped by the decoration transfer support, is introduced in the oil bath oven, protected by an envelope or bag from elastically deformable, high temperature resistant material.
Processes of this type and the associated apparatuses, such as for instance the one described in FR 2203321 (VILLEROY), EP 544603 (CLAVEAU), EP 451067 (CLAVEAU) and EP 606189 (CLAVEAU), allow however to realize multi-colour or anyhow complicated decorations only on small size articles, such as for instance cans, canisters, china articles and the like, but not on large size articles, such as extruded profiles of a length up to 20 meters, bent or shaped sheets and the like.
Therefore, object of this invention is to provide a process and the associated apparatus for the realization of open or closed section profiles from aluminium alloy or other metals, of large size, for instance extruded pieces having a length up to about 20 meters and rigid bent and shaped sheets, so decorated as to carefully reproduce the aesthetic effect of the various materials, such as wood, marble or the like, or anyhow showing throughout the surface or part of the same any ornamental pattern (floral, geometrical or other ones), however complicated and elaborated.
A further object of this invention is to provide extruded profiles for building, shaped sheets for domestic appliances, etc. variously decorated
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CER ERM: "La Decoration des objets par sublimation" Oct. 1992.
Crispino Richard
Lorengo J. A.
Verniciatura Industriale Veneta S.p.A.
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