Apparatus for applying indicia having a large color gamut on web substrates
AssigneeThe Procter & Gamble Company
InventorsMichael Scott Prodoehl, Kevin Benson McNeil, Thomas Timothy Byrne
Life of this patent
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Abstract
A contact printing system is disclosed. The contact printing system has a central roll having a plurality of discrete cells disposed upon an outer surface thereof. Adjacent cells of the plurality of discrete cells each have a fluid disposed therein from a respective location internal to the central roll. Each fluid is disposable from each of the cells to a web substrate and provides a resultant color upon the web substrate having a 2-D gamut boundary represented by a defined system of CIELab equations.
Claims16
A contact printing system comprising:
- a gravure cylinder comprising a plurality of discrete cells disposed upon an outer surface thereof,
- wherein adjacent discrete cells of said plurality of discrete cells each have a portion of a fluid disposed therein, each portion of said fluid being provided from at least one channel,
- said at least one channel continuously extending from a position external to said gravure cylinder to each discrete cell of said adjacent cells and having a single entry point at said position external to said gravure cylinder and a discrete exit point at each of said adjacent cells,
- wherein each fluid is disposable from each of said cells to a web substrate to provide a resultant color disposed within a 2-D gamut boundary represented by the following CIELab equations:
- {a*=−54.1 to 72.7;b*=131.5 to 145.8}→b*=0.113a*+137.6
- {a*=−131.6 to −54.1;b*=89.1 to 131.5}→b*=0.547a*+161.1
- {a*=−165.6 to −131.6;b*=28.0 to 89.1}→b*=1.797a*+325.6
- {a*=3.6 to −165.6;b*=−82.6 to 28.0}→b*=−0.654a*−80.3
- {a*=127.1 to 3.6;b*=−95.1 to −82.6}→b*=−0.101a*−82.3
- {a*=72.7 to 127.1;b*=145.8 to −95.1}→b*=−4.428a*+467.7
- where L* ranges from 0 to 100, and
- wherein a first and second portion of said at least one channel supplies said respective portion of said fluid to each of said adjacent discrete cells.
A contact printing system comprising:
- a gravure cylinder comprising a plurality of discrete cells disposed upon an outer surface thereof,
- wherein adjacent discrete cells of said plurality of discrete cells each have a portion of a fluid disposed therein, said fluid being provided from at least one channel,
- said at least one channel continuously extending from a position external to said gravure cylinder to each discrete cell of said adjacent cells and having a single entry point at said position external to said gravure cylinder and a discrete exit point at each of said adjacent cells,
- wherein each fluid is disposable from each of said cells to a web substrate to provide a resultant color disposed within a 3-D gamut boundary represented by the MacAdam 3-D color gamut, and
- wherein a first and second portion of said at least one channel supplies said respective portion of said fluid to each of said adjacent discrete cells.
Dependencies are inferred from the claim text.