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High chromaticity pigment flakes and foils

A metal layer and dielectric layer technology, applied in the field of manufacturing thin sheets or foils, which can solve problems such as poor interlayer adhesion, negative impact on productivity, etc.

Active Publication Date: 2018-01-05
VIAVI SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, current manufacturing methods (such as vapor deposition processes) require expensive and complex equipment to manufacture thin sheets and / or foils
Cheaper methods currently exist that provide poor quality color for use as a security feature
Additionally, deposition of polymer films by evaporation results in poor interlayer adhesion
Further, over time, operating in a vacuum can negatively impact the productivity of such equipment
Also, there is a significant amount of non-productive time associated with maintenance of such equipment, which requires pumping and emptying of chambers

Method used

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  • High chromaticity pigment flakes and foils
  • High chromaticity pigment flakes and foils
  • High chromaticity pigment flakes and foils

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Embodiment Construction

[0023] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are intended to provide illustrations of various embodiments of the invention.

[0024] In its broad and varied embodiments, disclosed herein are articles and methods of making the articles for use as currency security features and consumer applications with enhanced optical properties.

[0025] In one aspect, an article can include at least one first metal layer, at least one dielectric layer, and at least one second metal layer. The at least one dielectric layer may include at least one of: (i) a photoinitiator, (ii) an oxygen inhibition mitigation component, (iii) a leveling agent, and (iv) a defoamer. In one example, the at least one first metal layer may be one of a reflective layer or an absorbing layer, and the at least one second metal layer may be one of a reflective layer or an absorbing layer.

[0026] In another as...

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Abstract

An article, in particular a high-chroma pigment sheet and foil, including at least one first metallic layer, at least one dielectric layer; and at least one second metallic layer is disclosed. The atleast one dielectric layer can include at least one of (i) a photo-initiator, (ii) an oxygen inhibition mitigation composition, (iii) a leveling agent, and (iv) a defoamer.

Description

technical field [0001] The present invention relates generally to sheets and / or foils that may be used as security features in currency. Security features may (i) comprise intense colours, (ii) be goniochromatic, and (iii) have high flop, i.e. be highly reflective and have a change in brightness with angle. For a dull metallic look. A method of making a sheet or foil is also disclosed. Background technique [0002] The flakes or foils can be used as security features for currency and consumer applications with enhanced optical properties. Unfortunately, current manufacturing methods, such as vapor deposition processes, require expensive and complex equipment to manufacture the sheets and / or foils. Cheaper methods that currently exist provide poor quality color for use as a security feature. Additionally, deposition of polymer films by evaporation results in poor interlayer adhesion. Further, over time, operating in a vacuum can negatively impact the productivity of such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/36B42D25/373B42D25/369B42D25/45G07D7/005G07D7/04
CPCB42D25/36B42D25/373B42D25/369B42D25/45G07D7/005G07D7/04C09C1/0015C09C1/0033C09C1/006C01P2006/42C09C2200/1008C09C2200/24C09C2200/306C09C2220/10B32B15/08H01B17/62H01B5/14B32B2307/208B32B2307/204B32B7/023B42D25/29B42D25/445B42D25/328C23C4/06
Inventor J.赛德尔P.T.科尔曼M.特维斯J.J.库纳
Owner VIAVI SOLUTIONS INC