Composition for the fluorescent whitening of paper
A composition comprising a) 5 to 25% by weight of a fluorescent whitening agent of the formula (1), wherein R 1 and R 2 independently represent C 1 -C 4 alkyl, C 2 -C 4 hydroxyalkyl or together complete a morpholine ring and M is an alkaline or alkaline earth metal, b) 0.5 to 5% by weight of a swell...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
05.08.2004
|
| Online Access | Get full text |
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| Summary: | A composition comprising a) 5 to 25% by weight of a fluorescent whitening agent of the formula (1), wherein R
1
and R
2
independently represent C
1
-C
4
alkyl, C
2
-C
4
hydroxyalkyl or together complete a morpholine ring and M is an alkaline or alkaline earth metal, b) 0.5 to 5% by weight of a swellable layered silicate which is hectorite and/or vermiculite, c) water and, optionally, d) further adjuvants and the use thereof for the fluorescent whitening of paper in the pulp mass, in coatings or in the size press or metering size press.
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