WATER-TRIGGERED COLORING OR COLOR CHANGING INDICATOR

An ink formulation that includes a reversible color-developing complex formed from a dye precursor molecule having a triarylmethane derivative structure modified with a leaving-group (L) that disassociates from said dye precursor when subjected to environmental conditions of either a neutral or acid...

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Bibliographic Details
Main Authors SONG, XUEDONG, GIL, JUNMO
Format Patent
LanguageEnglish
French
German
Published 24.10.2012
Subjects
ADHESIVES
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COLOUR PRINTING
CORRECTING FLUIDS
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
DYES
FILLING PASTES
HUMAN NECESSITIES
HYGIENE
INKS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
LINING MACHINES
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEASURING
MEDICAL OR VETERINARY SCIENCE
METALLURGY
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
PERFORMING OPERATIONS
PHYSICS
POLISHES
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TESTING
TRANSPORTING
TYPEWRITERS
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:An ink formulation that includes a reversible color-developing complex formed from a dye precursor molecule having a triarylmethane derivative structure modified with a leaving-group (L) that disassociates from said dye precursor when subjected to environmental conditions of either a neutral or acidic pH value is described. Also the invention pertains to diagnostic indicators or absorbent personal care products that have the ink formulation applied to at least a part of the product.
Bibliography:Application Number: EP20100837132