Organic buffer for the alkaline dyeing of polyester
PERIBUFFER PDA is used for the pH adjustment of alkaline disperse dyeings of polyester.
PERIBUFFER PDA is an organic buffer for alkaline dyeing of polyester. With PERIBUFFER PDA an initial pH value of approx. 9.5 is set. During dyeing the pH value is reduced to approx. 8.5. PERIBUFFER PDA is used in combination with PERIGEN DLA. PERIGEN DLA is a dispersing agent, which is fully effective also under HT conditions. Thus excellent dispersion stability is obtained. When cooling incompletely exhausted dyebaths the agglomeration of dyes can be prevented. The combination of PERIBUFFER PDA and PERIGEN DLA allows for good reproducibility of disperse dyeings in the alkaline medium.
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