Method of producing color change in a web substrate
AssigneeThe Procter & Gamble Company
InventorsKelyn Anne Arora, John Lee Hammons
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Abstract
The present invention relates to a method of producing a web substrate comprising an activatable colorant and at least one region comprising a topical additive. The web substrate is exposed to a first external stimulus producing a first activated color region. The first activated color region is subsequently exposed to a second external stimulus producing a second activated color region within the first activated color region. The second external stimulus is induced by application of the topical additive such that the second activated color region coincides with the topical additive region.
Claims16
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, where said activatable colorant has both photoreactive and thermochromic material properties;
- 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;
- and
- c. applying a topical additive to the first activated color region of the web substrate forming a topical additive region in the first activated color region, wherein applying the topical additive provides a second external stimulus producing a second activated color region coinciding with the topical additive region.
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, wherein said activatable colorant has both photoreactive and thermochromic material properties;
- 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;
- and
- c. applying a topical additive to the first activated color region of the web substrate to produce a plurality of topical additive regions in the first activated color region, wherein a second external stimulus is produced during application of the topical additive producing a plurality of second activated color regions coinciding with the topical additive regions.
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;
- and
- c. applying a topical additive to the first activated color region of the web substrate to produce a plurality of topical additive regions in the first activated color region, wherein a second external stimulus is produced during application of the topical additive producing a plurality of second activated color regions coinciding with the topical additive regions;
- wherein the second external stimulus comprises a change in pH induced during application of the topical additive.
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. applying a topical additive to the first activated color region of the web substrate to produce a plurality of topical additive regions in the first activated color region, wherein a second external stimulus is produced during application of the topical additive producing a plurality of second activated color regions coinciding with the topical additive regions;
- and
- d. mechanically deforming the first activated color region of the web substrate to produce a plurality of deformed regions therein wherein a third external stimulus is produced during formation of the deformed regions forming a plurality of third activated color regions coinciding with the plurality of deformed regions.
Dependencies are inferred from the claim text.