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Found results for
 patents
1.
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METHOD FOR BLEACHING FIBER MATERIAL
| Application Number |
FI2012050653 |
| Publication Number |
2012/175815 |
| Status |
In Force |
| Filing Date |
2012-06-21 |
| Publication Date |
2012-12-27 |
| Owner |
CARBATEC OY (Finland)
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| Inventor |
Siren, Sakari
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Abstract
The invention relates to a method for bleaching a material that comprises fibres made of a cellulose-containing raw material, in which method the fibres are treated with a bleaching solution that contains a peracid.
IPC Classes ?
- D06L 3/02 - Bleaching fibres, threads, yarns, fabrics, feathers or made-up fibrous goods, leather or furs using compounds which develop oxygen
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2.
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METHOD FOR BLEACHING FIBROUS MATERIAL MADE FROM ATYPICAL RAW MATERIAL
| Application Number |
FI2012000020 |
| Publication Number |
2012/136878 |
| Status |
In Force |
| Filing Date |
2012-04-10 |
| Publication Date |
2012-10-11 |
| Owner |
CARBATEC OY (Finland)
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| Inventor |
- Hassi, Heikki
- Siren, Sakari
- Partanen, Timo
- Isoherranen, Juha
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Abstract
In a method for bleaching fibre material comprising regenerated cellulose fibre made of atypical cellulose-containing raw material, fibres are treated with a bleaching solution containing a peracid. The atypical cellulose raw material is a raw material having a high hemicellulose content and/or containing other impurities, and having a low brightness level, from which viscose is manufactured, which is bleached by a solution that contains a peracid, to achieve a high brightness level.
IPC Classes ?
- D06L 3/02 - Bleaching fibres, threads, yarns, fabrics, feathers or made-up fibrous goods, leather or furs using compounds which develop oxygen
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