“CON-TROL” Power-Ex is an efficient de-inking additive, formulated in powder form, containing 100% active ingredients and no filler material, “CON-TROL” Power-Ex de-inking chemical loosens ink from waste paper effectively, separates and disperses it for ultimate removal by floatation/wash type de-inking systems. “CON-TROL” Power-Ex is free from hazardous/strong solvents and does not affect adversely the quality of effluent, thereby does not pose ecological problem. It is designed to work in wide range of pulping conditions, like neutral to alkaline pH, low to high consistency (4 to 15%), ambient to high pulping temperature up to 70°C, pulping time 15 to 60 minutes etc.

When added at the pulping stage, “CON-TROL” Power-Ex dissolves in the aqueous system and effectively reduces the binding of ink particle with the fiber. The special ingredients of the product then remove the ink particles and disperse them in the mass. Preventing their redeposition on the fiber, the ink particles are collected and carried away by the ultimate removal by process of floatation/washing.

“CON-TROL” Power-Ex is to be used directly in the pulper at the dose level of 0.07 to 0.1% on dry weight basis of waste paper, depending on the quality of waste paper, with other chemicals such as caustic soda and sodium silicate. However, it reduces the need of alkali, which causes dispersion of wax and stickies into the water phase.

Though “CON-TROL” Power-Ex can be used under normal mill conditions, optimum results can be derived by using it at 45 to 50°C pulping temperature and giving a reasonable retention time.

The product has very good shelf life, when stored in a properly closed condition protected from heat and moisture.

Dispersants, alum and kerosene may affect the efficiency. In our endeavour to improve the product, above specifications are subject to change without prior intimation.