STORAGE STABLE SOLUTIONS OF OPTICAL BRIGHTENERS
First Claim
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1. An aqueous solution containing 10 to 40% by weight of a compound of formula (1)
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Abstract
The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4′-diaminostilbene-2,2′-disulphonic acid and of organic acids which do not need extra solubilising additives.
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10 Claims
- 1. An aqueous solution containing 10 to 40% by weight of a compound of formula (1)
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