customization possibilities
Modified starch, free flowing creamy white powder.
| S.No. | Parameters | Specifications |
|---|---|---|
| 01. | Moisture (%) | 13 max |
| 02. | Viscosity (cPs) | 50 - 300* min |
| 03. | Ash Content (%) | 1.00 max |
| 04. | pH | 5 - 7.5 |
| 05. | Brightness (against MgCO3) (%) | 92 min |
| 06. | Cold water soluble (%) | 3 max |
*Brookfield Viscometer at 50°C in 20% solution, Rpm 100, Spindle no.02, Viscometer model: RVDV II +; *Viscosity can be adjusted to suit customer’s specifications.
This starch is specially developed for high speed film/metering size press through which white paper for writing, printing and Xerox (map litho) papers are made. It has more binding power due to the larger Amylopectin molecules. It also has good penetrating capacity inside the paper layer which increases the strength and smoothness of paper. It gives almost zero porosity during surface sizing due to uniform thin film formation. (Based on paper thickness, 20 – 40 kg of this cooked starch can be applied over 40,000 m2 area of paper without porosity). Due to clear and transparent paste, the whiteness and sheen of paper is not affected. It has good runnability due to its free flowing nature and do not cause splashing in the size press. It has stable viscosity and very low rate of retro gradation of the paste above 40 °C.
Available in 25kg, 50kg PP Bag / Multiply Paper Bag / Sandwich Paper Bag with/without inner liner and in Jumbo Bags (PP).
One year from the date of manufacturing.
Paper Industries (for surface sizing) (suitable for both inclined and metering size press).
Used for textile industry.
Adhesive formulation industries..
*This data sheet is based upon our standard methods of analysis and process parameters. However, we can customize product as per buyer’s needs.
Modified starch, free flowing creamy white powder.
| S.No. | Parameters | Specifications |
|---|---|---|
| 01. | Moisture (%) | 13 max |
| 02. | Viscosity (cPs) | 250* min |
| 03. | Ash Content (%) | 1.00 max |
| 04. | pH | 6 - 8.0 |
| 05. | Brightness (against MgCO3) (%) | 85 min |
| 06. | Cold water soluble (%) | 0.017 - 0.020# |
*Brookfield Viscometer at 50°C in 2% solution, Rpm 10, Spindle no.02, Viscometer model: RVDV II +; Viscosity can be adjusted to suit customer’s specifications.
# - Degree of substitution is interpreted through international standard calculations from nitrogen measurement. Nitrogen is determined by standard testing method.
Our product has two distinct and characteristic advantages over others:
Cationic starch is primarily recommended to be used in paper industry as a wet-end additive for internal sizing to enhance paper strength, fines and retention over wire mesh, drainage and pulp loss recovery.
In the manufacturing process of cationic starch, quaternary ammonium salt is used, which gives positive charge to the starch particles. This is measured by the degree of substitution interpreted through standard international calculations from nitrogen content. Positive charges in the cationic starch molecules attract/bring closer the negatively charged fiber through electro static power. As a result, the size of the fibers improves and cannot pass through the wire mesh being prevented from drain with waste water also. It minimizes the COD and BOD load of the effluent.
It is the high pasty nature of the starch which binds the fibers which are brought closer due to positive charge of the starch as discussed above. During wet-end addition, normally the percentage of cooked starch slurry mixed with the paper pulp is lesser and concentration may not be more than 1%. In that case only when a starch with very high pasty nature is used, it would give the desired performance.
Available in 25kg, 50kg PP Bag / Multiply Paper Bag / Sandwich Paper Bag with/without inner liner and in Jumbo Bags (PP).
One year from the date of manufacturing.
Paper Industries (for wet end addition).
Used for textile industry.
Adhesives formulation.
Glass fibre insulation.
*This data sheet is based upon our standard methods of analysis and process parameters. However, we can customize product as per buyer’s needs.
Modified starch, amorphous white powder.
| S.No. | Parameters | Specifications |
|---|---|---|
| 01. | Moisture (%) | 13 max |
| 02. | Viscosity (cPs) | 3000* min |
| 03. | Ash Content (%) | 1.50 max |
| 04. | pH | 5 - 7.0 |
| 05. | Brightness (against MgCO3) (%) | 90 min |
*Brookfield Viscometer at 50°C in 5% solution, Rpm 10, Spindle no.02, Viscometer model: RVDV II +;
*Viscosity can be adjusted to suit customer’s specifications.
Available in 25kg, 50kg PP Bag / Multiply Paper Bag / Sandwich Paper Bag with/without inner liner and in Jumbo Bags (PP).
One year from the date of manufacturing.
Paper Industries (for spray application).
*This data sheet is based upon our standard methods of analysis and process parameters. However, we can customize product as per buyer’s needs.
Get in Touch
Varalakshmi Starch Industries (P) Ltd.
127/1, Gandhi Road, Varalakshmi Tower II Floor,
Salem, Tamil Nadu, India - 636 007.
+91 94433 88074 / +91 94421 33794
