Drying and gas or vapor contact with solids – Material treated by electromagnetic energy – Ultraviolet energy
Reexamination Certificate
2002-04-11
2004-05-11
Bennett, Henry (Department: 3743)
Drying and gas or vapor contact with solids
Material treated by electromagnetic energy
Ultraviolet energy
C034S420000, C101S491000, C101S488000, C101S424100, C156SDIG004, C156SDIG004, C156S384000, C156S379600
Reexamination Certificate
active
06732451
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates generally to a UV curing device for use with a label printer and is specifically directed to a label applicator or label rewinder with integrated ultraviolet (UV) curing functionality.
2. Description of the Related Art
UV curing of printed images is normally associated with gravure, offset, screen or flexo-graphic printing processes and equipment.
The inventors are unaware of the previous application of integrated UV curing capability with a label applicator.
On demand printing, unlike the previous above listed printing processes provides a custom label or rolls of, for example, sequentially numbered labels on demand. With the capability of printing near or at the point of use, on demand printers are often used to provide unique labels for application in high abrasion and or chemical environments, for example in the engine compartment of automobiles. Some previous on demand printers for these applications have used protective over coverings and or labels having a layered structure. These solutions have added media and machine complexity and overall increased materials costs.
UV curable links are cured by exposure to UV light. The UV light initiates photo polymerization causing the ink's chemical conversion to a cross-linked polymer. Compared to conventional inks, UV curable inks create an image with improved abrasion and chemical resistance characteristics.
UV curable inks, UV curing apparatus, light guides, reflectors/concentrators for UV light, and label applicators are disclosed in detail in the following references hereby incorporated by reference:
U.S. Pat. No. 4,483,585 “Illuminating device having optical light guide formed as fibre bundle”
U.S. Pat. No. 4,924,599 “UV curing apparatus”
U.S. Pat. No. 5,832,362 “Apparatus for generating parallel radiation for curing photosensitive resin”
U.S. Pat. No. 4,052,280 “UV curing of polymerizable binders”
U.S. Pat. No. 5,521,392 “Light cure system with closed loop control and work piece recording”
U.S. Pat. No. 5,905,012 “Radiation curable toner particles”
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Adams Matt
Conwell Kevin Girard
Intermec IP Corp.
Nguyen Camtu
Orum & Roth
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