North Carolina State University

The Procter Gamble Company

The Proctor 'Gamble Company

Taher Iqbal Yousaf

David Malcolm Lewis

Earl David Brock

Gilles Yves Marie Fernand Genain

Wei Dong He

Dong Wei He

Peter Jeffrey Broadbent

Valerio Del Duca

Marina Trani

Barry Stoddart

John Scott Park

Dario Rapisarda

Gilles Yves Marie Fernand Ganain

Gilles Yves Maria Fernand Genain

Heather Holden Harper

A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one nitrogen-containing heterocycle; (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one Y group wherein Y is a phosphonate or a borate derivative. The compounds herein have high Exhaustion Values (E), high Fixation Values (F) and high Efficiency Values (T) and show significant improvements in terms of reducing spent dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of dye that is removed during the post dyeing 'soaping off process' and therefore simplifying the post dyeing 'soaping off process' traditionally associated with dyeing cotton with fibre reactive dyes and reduction of staining of adjacent white fabrics. In addition, the compounds prepared above provide more intense dyeings and require less levels of salt for dyeing cotton substrates.

Reactive dye compounds

A reactive dye compound comprising: (a) at least one chromophore moiety; (b) at least one SO2C2H4 group which is attached to the chromphore moiety either directly via the sulphur atom of the SO2C2H4 group or via a linking group L; characterized in that at least one SO2C2H4 group is substituted on its terminal carbon atom with at least one Y group wherein Y is a phosphonate or borate derivative. The compounds herein high Exhaustion Values (E), high Fixation Values (F) and high Efficiency Values (T) and show significant improvements in terms of reducing spent dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of dye that is removed during the post dyeing &ldquo;soaping off process&rdquo; and therefore simplifying the post dyeing &ldquo;soaping off process&rdquo; and therefore simplifying the post dyeing &ldquo;soaping off process&rdquo; traditionally associated with dyeing cotton with fibre reactive dyes and reduction of staining of adjacent white fabrics. In addition, the compounds prepared above provided more intense dyeings and require less levels of salt for dyeing cotton substrates.

A novel reactive dye compound is disclosed. It comprises (a) at least one chromophore moiety; (b) at least one nitrogen-containing heterocycle; (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one thio-derivative and at least one quaternized nitrogen derivative.

Reactive dye compound comprising at least one chromophore moiety and at least one nitrogen-containing heterocycle

This invention relates to reactive dye compounds, and more especially to reactive dye compounds comprising a chromophore and a nitroen-containing heterocycle comprising at least one thio-substituent. The reactive dye compounds of the present are particularly suitable for dyeing hair.

Packaged hair coloring composition

Reactive Dye compound having formula (I) wherein: D is a chromophore group; L is a linking moiety; Q is a quaternized nitrogen derivative; X and Y are independently selected from chlorine, bromine, fluorine or hydrogen; A is selected from halogen, preferably chlorine or fluorine; provided that at least one of X and Y is fluorine; A is selected from halogen, preferably chlorine or fluorine; and salts and esters thereof. The reactive dye compounds of the invention have high Exhaustion Values, high Fixation Values, particularly on cellulosic substrates such as cotton, and show significant improvements in terms of reducing spend dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of dye that is removed during the post dyeing &ldquo;soaping off process&rdquo; and therefor simplying the post dyeing &ldquo;soaping off process&rdquo; traditionally associated with dyeing cotton with fiber reactive dyes and reduction of staining of adjacent white fabrics. In addition, the compounds prepared above provide more intense dyeings and require less levels of salt for dyeing cotton substrates.

Laundry pretreatment with peroxide bleaches containing chelators for

Growing community of inventors

Egham, United Kingdom

Taher Iqbal Yousaf