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Composite material with ornamental appearance and functional layer and its preparation method

A functional layer and appearance technology, which is applied in the field of preparing coated plastic substrates, can solve problems such as uniform coating of difficult materials, adhesion of paint layers, material loss, etc.

Inactive Publication Date: 2004-06-16
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Lacquers applied here to the scratch-resistant layer suffer from the same problems as the decorative appearance achieved by painting: the problem is the adhesion of the lacquer layer, especially in the depressions, protrusions and edges of the substrate
Also, it is difficult to evenly coat the material
Additionally, there is substantial material loss due to overspray or simple overfeeding

Method used

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  • Composite material with ornamental appearance and functional layer and its preparation method
  • Composite material with ornamental appearance and functional layer and its preparation method
  • Composite material with ornamental appearance and functional layer and its preparation method

Examples

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Embodiment Construction

[0052] FIG. 1 . Shows a substrate sheet 10 comprising a decorative appearance 3 . For example, the displayed decorative appearance can be used as a decorative element of a mobile phone. The decorative appearance 3 has graphic elements 31 , 32 , 33 . These may contain colored areas 32, images, such as a logo 31, or other cutouts 33, for example, through which the transparent substrate 10 is visible, by means of which it is possible to realize a window on a suitable element. Also the decorative appearance 3 contains an inscription 34 .

[0053] The decorated sheet 10 , 3 can be contoured by thermoforming, ie preformed into the inner contour of the respective subsequent plastic molding and has the shape of the decorative plastic molding to be produced. This type of thermoformed decorative backing sheet 10 as figure 2 As shown in image A, a side view along line S-S in Fig. 1 is adopted.

[0054] In a first step of the method, excess material of the backing sheet 10 is removed,...

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Abstract

Production of a coated plastic substrate with a decoration (3) comprises preparing a carrier foil (10), forming a decorated carrier foil, and forming a decorated plastic molded part (1) by applying a functional layer (2) by CVD. An Independent claim is also included for a composite material produced by the above process.

Description

technical field [0001] The present invention mainly relates to a method for preparing a coated plastic substrate, in particular to a method for coating a plastic substrate with a decorative appearance. Background technique [0002] The low density of plastics and the very variable properties of these materials in terms of color, texture, transparency and conductivity make them useful in many fields. Plastic moldings are especially suitable for housings of technical equipment, devices or elements with specific functions, such as optical components such as eyeglass lenses or microscope lenses. Because the plastic is relatively soft, the surfaces of these components are subject to wear, especially scratches. Therefore, scratch-resistant coatings are used on plastic surfaces such as polycarbonate (PC), polymethylmethacrylate (Plexiglas, PMMA) cycloolefin copolymer (COC), polypropylene (PP) and polyethylene terephthalate. layer. [0003] For example, EP 678 593 B1 discloses a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B29C59/14B44C1/17C23C16/02
CPCH01H2229/047H01H2209/016C23C16/029B29C59/14B29C45/14811B44C1/1704
Inventor 安德烈亚斯·鲍尔杜斯马库斯·库尔德特勒夫·沃尔夫阿恩德·马勒
Owner SCHOTT AG