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Proquimac Food & Pharma > Products > Technical WS Dyes PROQUIDET®
 Technical WS Dyes PROQUIDET®
Product description
PROQUIDET are water-soluble dyes for industrial use. Some of them are also soluble in alcohols and polar solvents. PROQUIDET range includes different types of dyes, mainly acids, basics and directs.

Applications
Application field is wide, Proquidet dyes can colour detergents, antifreeze, fertilizers and phytosanitary products, crops, artificial flowers, marker inks and any kind of product where water-soluble dyes can be useful.
Proquidet products cover all range of colours and shades. Stability depends on the product. Proquimac’s technical department can advise the best product according to product composition, pH and packaging of final product.
Stability data are just a guideline. Laboratory trials should be always made by users in final formulation because, besides pH and light, many other factors are determinant in colour stability as for example, flavours, preservatives or surfactants that are usual product components.

Packaging and labelling
PROQUIDET dyes are packed in carton-board drums with polyethylene bag inside. Standard packaging contains 25 kg. Labelling follows EEC legislation.

Storage and shelf-life
PROQUIDET dyes should be stored well closed, in a dry place, away from heat and light. Correctly stored, these products have a minimum shelf-life of three years.

 Cationic Technical Dyes PROQUIDET®
In general Cationic dyes have poor light fastness, fading is more important in diluted solutions (light shades). In any case trials over final product should be done, because stability depends upon packaging, composition and thickness of the coloured layer.
Cationic dyes are very useful to colour water and hydroalcoholic solutions. Colour strength is high.
Liquid products have a very low pH because the dyes are diluted in acids.
It is important to solve the technical colours and filter the solution before addition to final product, to avoid insoluble impurities in it.
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