Belofor OTSD
Application
Used in the manufacture of office, offset printing, graphic papers, sanitary and household paper types, paper and cardboard for packaging.
The use of the optical brightener based on its ability to absorb in the 300-400 nm UV radiation, thus transforming it in the visible spectrum (400-500nm), i.e. blue or violet. Optical brightener compensates blue color in reflected light, resulting in increased brightness of the processed surface.
Specifications
|
indicator |
Norm |
|
Belfort OTSD |
|
|
|
TU 2463-108-25800142-2009 |
|
Appearance |
The liquid from yellow to yellow-brown color |
|
A type |
di-sulfo |
|
The nature of ion |
anionic |
|
Maximum absorption nm |
352 |
|
Density at (20,0 ± 0,1) ° C, g / cm 3 |
1,13-1,21 |
|
Activity index of hydrogen ions, ed. pH |
8.5-10.5 |
|
Crystallization temperature, ° C, max |
-15 |
|
Solubility in water |
It dissolves completely |
|
Dynamic viscosity (Brookfield, 20 ° C), mPas |
below 50 |
|
Stability: acid alkali to hard water |
high high medium |
|
Compatibility: to anionic products a nonionic products to cationic products |
very good very good determined by preliminary tests |
|
Substativnost |
good |
Directions
Optical brighteners are used to improve the whiteness of paper by administration: to the pulp; coated in the paste during coating.
Dosage of Belofor depending on the bleaching process
Recommended dosage at bleaching in weight:
Belofor OTSD 0.05-1.5% (0.5-15 kg / ton) based on the weight of dry pulp
0.05-0.6% (0.5-6 kg / ton) based on the weight of dry pulp
Recommended dosage when the surface bleaching (size press)
Belofor OTSD The amount is limited to 4 g / l of a size liquid
(gives a moderate increase in whiteness of the paper)
Recommended dosage with coating:
Belofor OTSD 0.1-2.0, based on pigment
Features
- Belofor whitening is done only after prior chemical pulp bleaching.
- Belofor should be loaded first from chemical cellulose suspension.
- Place input bleach should be as close as possible to the top of the paper production process (with a sufficiently high concentration of cellulose).
- Belofor is compatible with various types of starch, CMC, PVA and synthetic binders.
- Stable liquid form provides the use of metering equipment to enter bleach pulp.
- Paper bleached by belofors is good tinting direct, basic dyes and pigments.
- Belofor is effective at neutral and acidic sizing of paper and paperboard.
- Belofor OTSD is effective in water with low to medium hardness.
- Belofor has permission to use in the production of paper and paperboard intended for food packaging.
- With a strong affinity to cellulose Belofor OTSD achieves a high level of whiteness of paper with economical consumption.
Safety requirements
Belofor OTSD - Low-danger substance. 4 class of danger.
Packaging & storage
Packing in accordance with the requirements of the consumer (evrokubs, tanks).
The product is stored as packed in closed storage rooms at a temperature of not less than -5 ° C and not more than + 30 ° C.
Shelf life - 6 months from date of manufacture.