Patent ID: 9404071
Filing Date: 2016-08-02
CPC Classification: C11D

Claim Text:
1. A method for reducing migration and weeping of a composition through a water soluble film, comprising the steps of a) providing an anionic surfactant; b) mixing said anionic surfactant with a solvent system comprising at least one primary solvent having Hansen solubility (δ) of less than about 29, thereby forming a composition, wherein the composition further comprises a hueing dye, wherein the hueing dye is selected from the group having Formula I below: wherein D represents the residue of a dye comprising a chromophore and A is a moiety selected from the group consisting of OSO c) encapsulating said composition in a water soluble film, wherein the water soluble film comprises a polymer selected from those having Formula V: wherein Y represents a vinyl alcohol monomer and G represents a monomer comprising an anionic group selected from the group consisting of OSO