MULTICOMPONENT MATERIALS CONTAINING DISCOLOURING COMPOSITION Russian patent published in 2015 - IPC A61L15/22 A61L15/48 A61L15/56 C08J7/04 

Abstract RU 2545306 C2

FIELD: medicine.

SUBSTANCE: invention refers to a multicomponent material, which can be used in personal hygiene product. The multicomponent material contains a substrate and a film layer on the substrate. The film layer contains a discolouring composition containing a water-insoluble film-forming polymer, a charge-carrying surfactant, a charge-carrying stain and a pH adjuster. The charge-carrying stain represents a pH and a pH adjuster. There are described a formulation of the above material, a method for forming and two versions of a disposable absorbent product containing the above multicomponent material.

EFFECT: invention provides the fast discolouration of the charge-carrying stain, leaching resistance, as well as a possibility to imprint, spray or stamp the discolouring composition on the substrate.

16 cl, 9 ex

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RU 2 545 306 C2

Authors

Gil Junmo

Song Ks'Judong

Dates

2015-03-27Published

2010-06-30Filed