Method of producing a web substrate having activated color regions in deformed regions
First Claim
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1. A method of producing color change in a web substrate, the method comprising the steps of:
- a. providing a web substrate comprising an activatable colorant;
b. applying a first external stimulus to the web substrate to activate the activatable colorant producing a first activated color region in the web substrate;
c. mechanically deforming the first activated color region of the web substrate to produce a second external stimulus comprising deforming the first activated color region of the web substrate producing at least one deformed region therein wherein a second activated color region is produced coinciding with the at least one deformed region; and
d. wherein the first external stimulus comprises ultraviolet light and the second external stimulus comprises heat induced by strain.
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Abstract
The present invention relates to a method of producing activated color regions in a web substrate where activated color regions are formed coinciding with deformed regions. The method includes providing a web substrate having an activatable colorant and producing a first activated color region therein. The web substrate is mechanically deformed to produce at least one deformed region in the first activated color region such that a second activated color region is produced coinciding with the at least one deformed region.
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16 Claims
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1. A method of producing color change in a web substrate, the method comprising the steps of:
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a. providing a web substrate comprising an activatable colorant; b. applying a first external stimulus to the web substrate to activate the activatable colorant producing a first activated color region in the web substrate; c. mechanically deforming the first activated color region of the web substrate to produce a second external stimulus comprising deforming the first activated color region of the web substrate producing at least one deformed region therein wherein a second activated color region is produced coinciding with the at least one deformed region; and d. wherein the first external stimulus comprises ultraviolet light and the second external stimulus comprises heat induced by strain. - View Dependent Claims (2, 3, 4)
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5. A method of producing color change in a web substrate, the method comprising the steps of:
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a. providing a web substrate comprising an activatable colorant; b. applying a first external stimulus to the web substrate to activate the activatable colorant producing a first activated color region in the web substrate; c. mechanically deforming the first activated color region of the web substrate to produce a second external stimulus comprising deforming the first activated color region of the web substrate producing a plurality of deformed regions therein wherein a plurality of second activated color regions are produced coinciding with the plurality of deformed regions; and d. wherein the first external stimulus comprises ultraviolet light and the second external stimulus comprises heat induced by strain. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification