Textile ink composition

Abstract

A textile ink composition and a method of manufacturing a textile ink composition are disclosed. The textile ink composition is formed from a cationically charged metal oxide and a dye, and is capable of durably dyeing different types of fabric. The cationically charged metal oxide is typically an oligomer, such as an alumina oligomer. A suitable alumina oligomer is aluminum chlorohydrate. Typical dyes have anthraquinone, catechol, hydroxyazo or salicylic acid groups or are mordant dyes, such as Carminic Acid, Alizarin Red, Acid Blue 45, Acid Green 41, Hematoxylin, Chromoxane Cyanine R, Calconcarboxylic Acid, Plasmocorinth B, Pyrocatechol, Acid Alizarin Violet N, Alizarin Yellow GG, Mordant Yellow 12 and Mordant Blue 9.

Description

BACKGROUND OF THE INVENTION

[0001] The present invention relates to textile ink compositions that are capable of durably dyeing two or more types of fabric. A method of preparing such a composition is also disclosed.

[0002] A simple application of a dye solution onto cotton or polyester fabrics usually fails to durably dye the fabric, and the dye is simply washed out upon laundering of the fabric. This is due to the absence of any specific interaction mechanisms or covalent attachment between the fibers and the dye molecules.

[0003] Only a few commercially available dyes can be used to form washfast textile inks in this manner, and these inks are generally specific to only one type of fabric. For example, fiber reactive dyes are able to durably dye cotton, but not polyester.

[0004] Most dyes require some form of pre- or post-dye treatment of the fabric in order to durably dye the fabric. Thus, developed dyes require the fabric to be first treated with a direct dye, then treated with...

Images