Sybron Chemicals, Inc.

Bayer Corporation

Syborn Chemicals, Inc.

Robert B Login

Calvin McIntosh Wicker, Jr

Otto Bella

Lynn Hosie

David MacEwan

Otto Bello

Ricky C Phillips

David A MacEwen

Robert Barile

Jim Konzelman

A process is disclosed for treating textile materials with selected amine oxides in order to change the aesthetics and/or make the materials more receptive to dyes. In particular, the treatment causes cellulosic materials to become more cationic and thus more receptive to anionic dyes with or without stiffening. In a preferred embodiment, the process of the present invention is directed to treating fabrics containing cotton fibers but will work to a useful extent on wool, nylon and polyester. The process is carried out by contacting said fibers or fabric with selected amine oxide compositions. The amine oxide compositions can be padded onto the fabric or printed onto the fabric. If printed onto the fabric according to a particular design, the design then becomes visible on the fabric once dyed.

Utility of selected amine oxides in textile technology

The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatizing the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers and the fibers can absorb greater amounts of cationic softeners and biocides. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and hydrophilicity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents.

Process for applying softeners to fabrics

The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatising the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers and the fibers can absorb greater amounts of cationic softeners and biocides. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and hydrophilicity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents.

Anionically derivatised cotton for improved comfort and care-free laundering

A stain blocking composition for treating polyamide materials, such as nylon carpeting is disclosed. The stain blocking composition contains one or more novolak resins in combination with an addition polymer and a metal donor, such as a magnesium salt. The addition polymer is directed to a partially sulfonated styrene-maleic copolymer. The addition polymer not only serves as a stain blocking composition but also serves to reduce the yellowing effect sulfonated novolak resins may have on polyamide substrates. Besides containing a sulfonated novolak resin and the addition polymer, the composition of the present invention can include various other ingredients. For instance, the composition can contain an emulsifier or dispersant, antioxidants such as sodium thiocyanate or fluorocarbon repellents or mixtures thereof.

Stain resistant composition for polyamide containing substrates

The present invention is generally directed to a process for making fabrics containing cotton fibers more aesthetically pleasing and resistant to staining by anionic dyes by derivatising the cotton so that it exhibits a permanent anionic charge. By increasing the anionic charge of the fibers, the fibers become resistant to anionic coloring agents which may undesirably come into contact with the fibers. Furthermore, the negative charges repel each other resulting in a fabric with greater loft and porosity. This results in greater smoothness, better hand, and more comfort. Besides being used to prevent the cross-staining of fabrics, the present invention can also be used to make carpet materials resistant to anionic staining agents. Alternatively, it has also been discovered that an anionic derivative can be used to catalyze permanent press resins onto fabrics containing cellulosic fibers, also resulting in anionic cotton.

Anionically derivatised cotton for improved comfort and care-free

An immersion method of dyeing textile material includes the steps of (a) providing a textile material comprising at least one of cotton and regenerated cellulosic fibers; (b) providing an aqueous dyebath in a weight ratio of dyebath:textile material of 10:1 to 20:1, the dyebath comprising a reactive dye and a carboxylate salt for salting out the dye onto the textile material, the carboxylate salt having a carboxylate anionic component and a monovalent cationic component, wherein the carboxylate salt is present in an amount effective for salting out the dye onto the textile material; (c) immersing the textile material in the aqueous dyebath under conditions sufficient to salt the dye onto the textile material; (d) adding to the dyebath an alkaline material to promote a reaction to form a chemical bond between the dye and the textile material; and (e) subjecting the dyebath containing the textile material and the alkaline material to conditions sufficient to form a chemical bond between the dye and the textile material.

Method of reactive dyeing of textile materials using carboxylate salt

Improvements in the disperse dyeing process for hydrophobic textiles by the use of novel dye carrier formulations are disclosed. The carrier composition for use in disperse dyeing of hydrophobic textile material preferably comprises an alkylphthalimide carrier component and a clay dispersing agent. Dye baths and methods of disperse dyeing of a hydrophobic textile material are also disclosed. The use of clay as a dispersing agent allows for the use of carrier compositions with reduced health and environmental hazards without adversely affecting dyeing characteristics.

Clay-containing dispersing composition for carriers used in the disperse

A process for dying materials containing natural or synthetic polyamides is disclosed. The process includes immersing the materials to be dyed in a dye bath containing an acid dye. The pH of the dye bath is initially at a level that substantially inhibits the dye from being absorbed by the polymer. In accordance with the present invention, however, an acid producing composition is added to the bath which gradually reduces the pH of the bath and allows for uniform diffusion of the dye into the polymer. The acid producing composition of the present invention is a maleate ester, which, in one embodiment, is the reaction product of maleic acid or maleic anhydride and a glycol.

Acid donor process for dyeing polyamide fibers and textiles

A phosphate-free and silicate-free aqueous alkali composition consisting essentially of water, a water soluble base selected from the group consisting essentially of alkali metal hydroxide, alkali metal carbonate and mixtures thereof, wherein the base is present in an amount sufficient to yield a composition pH of about 11 to about 12 at a composition concentration of about 0.1 wt % to about 1 wt % in a dye bath, and an aminopolycarboxylate sequestrant in an amount sufficient to sequester metal ion impurities and prevent destructive reactive dye hydrolysis when the composition is used to dye fabric in the presence of reactive dye and metal ion impurities. Also disclosed is a dye bath containing the composition and a method of using the composition in reactive dyeing.

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Simpsonville, SC, United States of America

Robert B Login