The present disclosure relates to a color-changing composition and to a substrate having the color-changing compositions disposed thereon. The color-changing composition includes a leuco dye, a color-developer and a desensitizer. The color-changing composition changes from a colorless or largely colorless composition to color upon being wetted with an aqueous liquid. The color-changing composition remains colorless or largely colorless prior to exposure to high relative humidity conditions.

Claims

18 · 3 independent · depth 2

18 granted claims

›1.independentA color-changing composition comprising:na leuco dye;a color-developer;a desensitizer;a binder; andan organic solvent;wherein the desensitizer is sele…+12

›2.↳ 1The color-changing composition of claim 1 wherein the leuco dye is 0.1% to 20.0% of the total weight of the color-changing composition.d2

›3.↳ 1The color-changing composition of claim 1 wherein the color-developer is 0.1% to 17.0% of the total weight of the color-changing composition.d2

›4.↳ 1The color-changing composition of claim 1 wherein the desensitizer is 3.0% to 25.0% of the total weight of the color-changing composition.d2

›5.↳ 1The color-changing composition of claim 1 wherein the desensitizer is 10.0% to 15.0% of the total weight of the color-changing composition.d2

›6.↳ 1The color-changing composition of claim 1 wherein the binder is 1.0% to 60.0% of the total weight of the color-changing composition.d2

›7.↳ 1The color-changing composition of claim 1 wherein the organic solvent is 30.0% to 95.0% of the total weight of the color-changing composition.d2

›8.↳ 1The color-changing composition of claim 1 wherein the desensitizer comprises tetraethyl ammonium acetate.d2

›9.↳ 1The color-changing composition of claim 1 wherein the tetraalkyl ammonium carboxylate is selected from the group consisting of tetraethyl ammonium ace…d2

›10.↳ 1The color-changing composition of claim 1 wherein the tetraalkyl ammonium hydroxide is selected from the group consisting of tetraethyl ammonium hydro…d2

›11.↳ 1The color-changing composition of claim 1 wherein the tetraalkyl ammonium halide is selected from the group consisting of tetraethyl ammonium chloride…d2

›12.↳ 1The color-changing composition of claim 1 wherein the color-developer comprises bisphenol A, zinc chloride, zinc salicylate, phenol resins or combinat…d2

›13.↳ 1The color-changing composition of claim 1 wherein the leuco dye comprises phthalide leuco dye, triarylmethane leuco dye, fluoran leuco dye or combinat…d2

›14.independentA color-changing material comprising:na substrate having a color-changing composition disposed thereon wherein the color-changing composition comprise…+3

›18.independentA disposable absorbent article having an absorbent core adjacent an outer cover and a color-changing composition disposed there between, the color-cha…

Classifications

9 codes

IPC · International Patent Classification

Section A — Human necessities

A61F13/42
A61L15/56

Section B — Performing operations; transporting

B41M1/40
B41M5/00

Section G — Physics

G01N21/81
G01N31/22

USPC · US Patent Classification

503/205106/31.32604/361

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Pendency

1.6 y

602 days filing → grant

Office actions

none on record

Examiner

Bruce H Hess

art unit 1785 · TC 1700

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Citations: 16 back · 2 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20140066870 A1	6 Mar 2014

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