AVCO-BUFFER DLT HC
Rainbow is Avco preferable colour!
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- Textile
- Textile Auxiliaries
- Dyeing
- Acid buffer and donor
AVCO-BUFFER DLT HC
An highly concentrated acid donor which generates, very slowly, acidity upon heating up during the dyeing process. The pH of 1 g/l AVCO BUFFER DLT HC is 6.5-7.0, and when heated to the boil the pH decreases to pH 4- 5. It is mainly recommended for dyeing pale to medium shades
Properties & uses:
- An acid donor which evenly and slowly hydrolizes in hot aqueous solution to produce an organic acid
- During the hydrolysis process the organic acid produced is lowering the pH of the solution down to 4 - 5 according to the concentration in the liquor
- The rate of the dissociation is slow in cold solutions and increases when the temperature is raised
- This manner of pH control makes it useful for dyeing acid and metal complex dyes. As the exhaution rate of acid dyes is pH dependent, the slow lowering of the pH in a dyeing solution containing the product, ensures more levelled dyeing, due to slower exhaution rate of the dyestuffs onto the fibres
- Recommended for even dyeing of polyamide, wool and blends of these fibres
- When using the product, the initial temperature of the dyeing can be increased, and the rate of heating up may be faster, thus reducing dyeing time
- Does not influence any of the fastness properties of the dyed fibres
Ionicity:
- Nonionic
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