Invention Grant
- Patent Title: Method and apparatus for orienting magnetic flakes
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Application No.: US16113977Application Date: 2018-08-27
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Publication No.: US11230127B2Publication Date: 2022-01-25
- Inventor: Vladimir P. Raksha , Paul G. Coombs , Charles T. Markantes
- Applicant: VIAVI Solutions Inc.
- Applicant Address: US CA San Jose
- Assignee: VIAVI Solutions Inc.
- Current Assignee: VIAVI Solutions Inc.
- Current Assignee Address: US CA San Jose
- Agency: Harrity & Harrity, LLP
- Main IPC: B41M1/00
- IPC: B41M1/00 ; B05D3/00 ; B05D5/06 ; B41F11/02 ; B41M3/14 ; B41M5/00 ; B42D25/29 ; B41M3/00 ; B41F23/00 ; B42D25/369

Abstract:
The invention relates to a method of aligning magnetic flakes, which includes: coating a substrate with a carrier having the flakes dispersed therein, moving the substrate in a magnetic field so as to align the flakes along force lines of the magnetic field in the absence of an effect from a solidifying means, and at least partially solidifying the carrier using a solidifying means while further moving the substrate in the magnetic field so as to secure the magnetic flakes in the carrier while the magnetic field maintains alignment of the magnetic flakes. An apparatus is provided, which has a belt for moving a substrate along a magnet assembly for aligning magnetic flakes. The apparatus also includes a solidifying means, such as a UV- or e-beam source, and a cover above a portion of the magnet assembly for protecting the flakes from the effect of the solidifying means.
Public/Granted literature
- US20190023043A1 METHOD AND APPARATUS FOR ORIENTING MAGNETIC FLAKES Public/Granted day:2019-01-24
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