Method for providing a semitransparent metallic aspect to cosmetic case or compact components and resulting components
The invention concerns a method for providing a semitransparent metallic aspect to a rigid component of a cosmetic case or analogue, made of transparent plastic material capable of being metal-coated. Said method is characterized in that it consists in depositing by physical vacuum vapour phase deposition a metal film sufficiently thin not to be opaque, and in covering said thin film with varnish.
1. A process for giving a semitransparent metalized appearance to a rigid component made of metalizable transparent plastic, the process comprising
depositing a metal film that is thin enough not to be opaque on the plastic by a physical vacuum vapor-phase deposition process, wherein the metal deposited is chromium or copper and the metal is obtained from stainless steel; and
covering the thin film with a varnish.
2. The process as claimed in claim 1 , wherein the deposition process is performed by vacuum evaporation.
3. The process as claimed in claim 1 , further comprising prior to the depositing, preparing a transparent plastic component as the rigid component.
4. The process as claimed in claim 3 , further comprising prior to the depositing, applying a surface preparation comprising applying a varnish undercoat to the rigid component.
5. The process as claimed in claim 4 , further comprising after preparing the component, preparing the surface of the component for receiving a deposited metal film.
6. The process as claimed in claim 3 , further comprising after preparing the component, preparing the surface of the component for receiving a deposited metal film.
7. The process as claimed in claim 1 , wherein the plastic component is made of styrene resin.
8. A process for giving semitransparent metalized appearance to a rigid component made of metalizable transparent plastic, the process comprising
preparing a transparent plastic component as the rigid component by applying a surface preparation comprising a varnish undercoat, wherein the varnish undercoat is colored;
then depositing a metal film that is thin enough not to be opaque on the plastic by a physical vacuum vapor-phase deposition process; and
covering the thin film with a varnish.