H.S. Borkar's scientific contributions
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Publication (1)
The use of buffers such as sodium acetate and acetic acid to stabilize pH levels during dyeing is discussed. The action of buffers is explained and reproducibility problems with disperse dyes are considered. Sandoz's Sandacid PBI and its use as an acid buffer stabilizing pH in the weakly acid region are described briefly.
Citations
... Dyebath pH is adjusted prior to the dyeing process; otherwise, it may affect various factors, such as the absorption of dye into the fiber, by increasing or reducing alkalinity [34]. The pH controlling agents play three important roles: (a) maintain a high degree of acidity; (b) control the pH within narrow tolerances; and (c) slide the pH in acidic conditions [35]. The pH controlling agents are usually based on two chemicals, a weak acid and its salt, with a stronger base such as acetic acid, sodium acetate, or phosphoric acid-sodium phosphate. ...
Reference: Dyeing Chemicals
