CH677337A5

CH677337A5 - Rendering synthetic foil iridescent - by polishing with powder followed by coating with lacquer

Info

Publication number: CH677337A5
Application number: CH430287A
Authority: CH
Inventors: Peter Zezula
Original assignee: Foils Trading Ltd
Priority date: 1987-11-03
Filing date: 1987-11-03
Publication date: 1991-05-15

Abstract

Synthetic foils are rendered iridescent by polishing at least one side with a powder and then coating the treated surface with a lacquer. Pref. the polishing powder is Bi oxychloride. The lacquer contains nitrocellulose, butanol, butyl acetate and ethyl glycol, and is used as a soln. A coloured lacquer may be used to give a coloured iridescent effect. USE - The foils are esp. colourless and/or black PVC films. The iridescent effect may be coloured.

Description

       

  
 


 1. Erneuerung: 
 



  Es ist gelungen, Kunststoffolien, insbesondere farblose und/oder schwarze PVC-Folien zum Irisieren zu bringen. 



  Zusätzlich ist es gelungen, diesen Irisierungseffekt farblich zu machen. 


 2. Arbeitsablauf: 
 

 a) Irisierung: 
 



  Die Irisierung wird durch zwei wichtige - neben anderen - Arbeitsgänge erreicht, und zwar:
 Oberflächenbehandlung der Folie mit einem bestimmten Pulver,
 Oberflächenbehandlung der Folie mit einem bestimmten Lack. 



  Zur Zubereitung des Lacks sind bestimmte Ausgangsstoffe notwendig, und zwar:
 
 Nitrozellulose, auch E-Wolle genannt,
 Butanol
 Butylacetat
 Äthylglykol
 



  Mit diesen Ausgangsstoffen wird ein Ansatz gewonnen, der in Lösung überführt wird und sodann zu Lack weiterverarbeitet ist. Mit diesem Lack wird sodann die Oberfläche der Folie bearbeitet. 



   Der eigentliche Irisierungseffekt wird nun aber dadurch erreicht, dass die Folie vor der Lackbearbeitung/-beschichtung mit wenigstens einem Pulver, z.B.  mit pulvrigem Wismutoxychlorid, poliert wird und erst dann die Lackbeschichtung erfolgt. Durch Veränderung des Lack-Anmischverhältnisses kann das Erscheinungsbild der Irisierung verändert werden. 

 b) Farbgebung: 
 



  Der Irisierungseffekt kann auch farblich gemacht werden. Dazu ist es notwendig, die farblose Folie mit eingefärbtem Lack zu bearbeiten. Der Lack muss vor dem Auftragen auf die Folie mit Farbe behandelt werden. Die Farbe muss in einem gewissen Quantitätsverhältnis beigegeben werden - je nach gewünschter Farbe in verschiedenen Mengen gemäss eigener separater Rezeptur -, so dass nach der Behandlung der Folie mit dem eingefärbten Lack eine irisierende und durchscheinende Farbfolie entsteht. 



  
 


 1. Renewal:
 



  Plastic films, in particular colorless and / or black PVC films, have been successfully iridescent.



  In addition, it was possible to color this iridescent effect.


 2. Workflow:
 

 a) Iridescence:
 



  Iridescence is achieved through two important - among other - operations:
 Surface treatment of the film with a certain powder,
 Surface treatment of the film with a certain varnish.



  Certain raw materials are required to prepare the lacquer, namely:
 
 Nitrocellulose, also called e-wool,
 Butanol
 Butyl acetate
 Ethyl glycol
 



  With these starting materials, an approach is obtained which is converted into solution and then further processed into lacquer. The surface of the film is then processed with this lacquer.



   The actual iridescent effect is now achieved, however, by the film being treated with at least one powder, e.g. with powdery bismuth oxychloride, is polished and only then is the varnish coated. The appearance of the iridescence can be changed by changing the paint mixing ratio.

 b) Coloring:
 



  The iridescent effect can also be made in color. For this it is necessary to process the colorless film with colored lacquer. The varnish must be treated with paint before it is applied to the film. The color must be added in a certain quantity ratio - depending on the desired color in different quantities according to our own separate recipe - so that after the treatment of the film with the colored lacquer an iridescent and translucent color film is created.

Claims

1. A process for the iridescence of plastic films, characterized in that at least one side of a plastic film is polished with at least one powder and the surface thus treated is then coated with a lacquer.

2. The method according to claim 1, characterized in that the plastic film is colorless and / or black polyvinyl chloride films.

3. The method according to any one of claims 1 to 2, characterized in that the paint Nitrocellulose Butanol Butyl acetate Ethyl glycol contains.

4. The method according to any one of claims 1 to 3, characterized in that the lacquer is applied in the form of a solution.

5. The method according to any one of claims 1 to 4, characterized in that one uses a colored lacquer to achieve a colored iridescent effect.

6.

Method according to one of claims 1 to 5, characterized in that powdery bismuth oxychloride is used as the powder for polishing. 1. A process for the iridescence of plastic films, characterized in that at least one side of a plastic film is polished with at least one powder and the surface thus treated is then coated with a lacquer. 2. The method according to claim 1, characterized in that the plastic film is colorless and / or black polyvinyl chloride films. 3. The method according to any one of claims 1 to 2, characterized in that the paint Nitrocellulose Butanol Butyl acetate Ethyl glycol contains. 4. The method according to any one of claims 1 to 3, characterized in that the lacquer is applied in the form of a solution. 5. The method according to any one of claims 1 to 4, characterized in that one uses a colored lacquer to achieve a colored iridescent effect. 6.

Method according to one of claims 1 to 5, characterized in that powdery bismuth oxychloride is used as the powder for polishing.