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Direct Dyes

OBA and Colorants for Paper

Krishna has a long tradition as supplier of dyes to the paper industry. We have gained a deep understanding of the relationships between chemistry and paper making from our value added customers. Our valuable customers are not only the largest paper mills of India but also many multinational conglomerates.

Paper Products :

- Coloration: Range of Perfinaze Dyestuff (containing acid dyes, direct dyes, basic dyes) and Toptint Pigment preparations
- Whiteness: Onewhite Optical Brightening Agents (OBA)

Applications :

- Printing & Writing
- Coated Paper
- Tissue & Toweling
- Packaging & Board
- Newsprint

Our Paper range provides total solution of coloration and whiteness for all kind of papers. By combining our focused product range with the application services of our paper experts around the globe, we enhance both the optical and functional properties of paper. Additionally, we constantly optimize the production processes for our clients.

For the convenience of end-users, Krishna offers either tailor-made blends giving the desired shade or single components.

Contact us for discuss precise requirements and obtain advice on which products are required to suit your exact needs.
For further information on Chemical Properties, MSDS, CAS no, CI no, EINECS(EC) no, REACh and other regulatory issues contact us on sales@krishnadyes.net

Perfinaze Paper Products - Download Acrobat Logo

Optical Brightening Agent (OBA)

Krishna offers a complete line of Onewhite brand specialty OBAs produced to meet paper industry requirements. Onewhite enable papermaker to achieve high whiteness and brightness levels on all types of bleached pulps and achieve maximum efficiency and performance. These products include anionic disulphonated-, tetrasulphonated- and hexasulphonated OBAs, that allow the papermaker to produce superior whites.

ONEWHITE OBA can be customized as per customer's requirements i.e. Strength (E Value) and Active concentration (% of active part).

Product (Phase) Colour Index Applications
ONEWHITE 2B (Powder) OBA 24 Sized Press, Wet End, Coatings
ONEWHITE BOP (Powder) OBA 24 Sized Press, Wet End, Coatings
ONEWHITE UP (Liquid) OBA 154 Sized Press, Coatings
ONEWHITE SI (Liquid) OBA 220 Sized Press, Wet End, Coatings
ONEWHITE BBU (Powder) OBA 220 Sized Press, Coatings
ONEWHITE AS (Liquid) OBA 253 Sized Press, Coatings
ONEWHITE BSU (Liquid) OBA 264 Sized Press, Coatings


Krishna offers excellent combination of highly substantive, anionic and cationic Perfinaze dyestuffs specially developed for the paper industry, can be used for both wet-end and surface dyeing.
Krishna ensures a constantly high standards with understanding product safety and environmental care as our core responsibility to our customers. PERFINAZE dyes, therefore, do not contain heavy metal ions or carcinogenic components. We offer REACH-registered dyes and state-of-the-art pigment products to the paper makers.

Our broad range of cationic and anionic dyestuffs offers:

Excellent light fastness
Superior solubility due to several sulphonic and carboxyl groups
Essentially all shades of brown
Greater flexibility and online control

High Strength Water Based Pigment Dispersions

Toptint are water-based dispersions that exhibit a broad degree of compatibility that provides a complete coverage of the color spectrum without compromising opacity, light and weather fastness or color accuracy while maintaining cost effectiveness. The density, viscosity, ph, fineness of grind, color shade, strength and the rheological properties of these products are very tightly controlled in order to guarantee a high degree of color accuracy and reproducibility.
Toptint pigment preparations are used for the coloration of papers requiring High Fastness Properties for example high quality printing and writing papers, art papers and other technical papers. Also, very good light fastness are also suitable for the coloration and shading of coating colors.

Our products are free of V.O.C. (Volatile Organic Compounds) and comply with the European standard for Nonylphenyl content.

Krishna offers customized coloring solutions for individual customer.