APPARATUS FOR APPLYING INDICIA HAVING A LARGE COLOR GAMUT ON WEB SUBSTRATES

• US 20120222572A1
• Filed: 03/04/2011
• Published: 09/06/2012
• Est. Priority Date: 03/04/2011
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: McNEIL, Kevin Benson, PRODOEHL, Michael Scott, BYRNE, Thomas Timothy
• Granted Patent: US 8,943,958 B2
• Time in Patent Office: Days
• US Class Current: 101/153
• CPC Class Codes: B41F 13/11 Gravure cylinders attaching cylindrical formes B41F27/105
• CPC Class Codes: B41F 31/22 for inking from interior of cylinder
• CPC Class Codes: B41F 33/0036 Devices for scanning or checking the printed matter for quality control
• CPC Class Codes: B41F 9/025 with horizontally arranged printing units
• CPC Class Codes: B41F 9/028 of the satellite type
• CPC Class Codes: H04N 1/60 Colour correction or control H04N1/54 takes precedence

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.

Claims

1. A contact printing system comprising a central roll comprising a plurality of discrete cells disposed upon an outer surface thereof, wherein adjacent cells of said plurality of discrete cells each have a fluid disposed therein from a respective location internal to said central roll and wherein each fluid is disposable from each of said cells to a web substrate and provides a resultant color upon said web substrate having 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.

2. The contact printing system of claim 1 wherein said fluid from each of said cells are disposed upon said web substrate to provide a halftone of greater than 20 dpi print resolution upon said web substrate.

3. The contact printing system of claim 1 wherein said fluid disposed within each of said cells is disposable from each of said cells to a web substrate and provides a resultant color upon said web substrate having a 2-D gamut boundary represented by the following CIELab equations:

{a*=20.0 to 63.6;

b*=113.3 to 75.8}→

b*=−

0.860a*+130.50

{a*=−

47.5 to 20.0;

b*=82.3 to 113.3}→

b*=0.459a*+104.11

{a*=−

78.0 to −

47.5;

b*=28.4 to 82.3}→

b*=1.767a*+166.24

{a*=−

18.8 to −

78.0;

b*=−

51.7 to 28.4}→

b*=−

1.353a*−

77.14

{a*=56.6 to −

18.8;

b*=−

67.4 to −

51.7}→

b*=−

0.208a*−

55.61

{a*=81.8 to 56.6;

b*=−

29.8 to −

67.4}→

b*=1.492a*−

151.85

{a*=63.6 to 81.8;

b*=75.8 to −

29.8}→

b*=−

5.802a*+444.82

where L* ranges from 0 to 100.

4. The contact printing system of claim 1 wherein said central roll further comprises a plurality of fluid delivery channels, each of said fluid delivery channels being capable of providing fluid contact between at least one of a plurality of fluids disposed external to said central roll and one of said cells at a first respective location internal to said central roll.

5. The contact printing system of claim 4 wherein said plurality of fluid delivery channels are formed in situ with the formation of said central roll and said plurality of discrete cells.

6. The contact printing system of claim 5 wherein said central roll, said plurality of discrete cells, and said fluid delivery channels are cast.

7. The contact printing system of claim 6 wherein fluid delivery channels are fabricated and said central roll and said plurality of discrete cells are cast around said fluid delivery channels.

8. The contact printing system of claim 1 further comprising a second central roll, said second central roll having a second plurality of discrete cells disposed upon an outer surface thereof.

9. The contact printing system of claim 8 wherein adjacent cells of said second plurality of discrete cells each have a fluid disposed therein from a respective location internal to said second central roll and wherein each fluid is disposable from each of said second plurality of cells to said web substrate and provides a resultant color upon said web substrate having 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.

10. A contact printing system comprising a central roll comprising a plurality of discrete cells disposed upon an outer surface thereof, wherein adjacent cells of said plurality of discrete cells each have a fluid disposed therein from a respective location internal to said central roll and wherein each fluid is disposable from each of said cells to a web substrate and provides a resultant color upon said web substrate having a 3-D gamut boundary represented by the MacAdam 3-D color gamut.

11. The contact printing system of claim 10 wherein said fluid from each of said cells are disposed upon said web substrate to provide a halftone of greater than 20 dpi print resolution upon said web substrate.

12. The contact printing system of claim 10 wherein said fluid disposed within each of said cells is disposable from each of said cells to a web substrate and provides a resultant color upon said web substrate having a 3-D gamut boundary represented by the Prodoehl 3-D color gamut.

13. The contact printing system of claim 10 wherein said central roll further comprises a plurality of fluid delivery channels, each of said fluid delivery channels being capable of providing fluid contact between at least one of a plurality of fluids disposed external to said central roll and one of said cells at a first respective location internal to said central roll.

14. The contact printing system of claim 13 wherein said plurality of fluid delivery channels are formed in situ with the formation of said central roll and said plurality of discrete cells.

15. The contact printing system of claim 14 wherein said central roll, said plurality of discrete cells, and said fluid delivery channels are cast.

16. The contact printing system of claim 15 wherein fluid delivery channels are fabricated and said central roll and said plurality of discrete cells are cast around said fluid delivery channels.

17. The contact printing system of claim 10 further comprising a second central roll, said second central roll having a second plurality of discrete cells disposed upon an outer surface thereof.

18. The contact printing system of claim 17 wherein adjacent cells of said second plurality of discrete cells each have a fluid disposed therein from a respective location internal to said second central roll and wherein each fluid is disposable from each of said second plurality of cells to said web substrate and provides a resultant color upon said web substrate having a 3-D gamut boundary represented by the Prodoehl 3-D color gamut.