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| Packaging Material: | Paper |
| Packaging: | Cartons |
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is a water resistance natural starch addtive, a chemically modified tannin of polyphenol chemical structure( flavonoid) obtained from extracted substances of the Colorado Quebracho(Schinopsis Lorenzii) arboreal species that grows in the Northeast of Argentina..COLATAN CF2 is specifically developed to be used as a natural starch additive to provide high water resistance properties when applied to corrugated cardboard, to give good bonding especially for high speed corrugator.Being the universal natural starch addtive for the cardboard industry, it can be added without changing your own formula , nevertheless, it could offer adhesive with both high bonding and good water resistance.
Physical property:
Appearance: reddish powder
PH value:6.5-6.8
Moisture content:max.9%
Chemical feature
Scientifically talking, the water has a very important role in the adhesive:
1-water is the carrier to transport the raw satarch from the kitchen or the storage tanks to the papers
2-water is needed to produce the gelatinization process of the raw starch
3-water helps to wet the papers and so, helps the adhesive to penetrate into the papers
Once the glue is on the papers some effects occurs like:
1- water wet the papers
2-adhesive penetrate into the papers
3-the papers goes into the hot plates where some others effects ocurs on the adhesive
a)adhesive increase its temperature
b)adhesive increase its viscosity dramatically because the raw starch start to gel
c) as much time the papers are into the hot plates, more raw starch become in gel, till all raw starch is already gel, in this point many water molecules are between gel satrch molecules, but to get a dry cardboard or hard cardboard, is needed to take out most of this water.
d)Finally, to take these water molecules out, is needed to use some energy from the hot plates just to take out the water from the starch molecules and by this way these water molecules are free to evaporate from the cardboards.
1.Gel point:60-63ºC
2.Viscosity: S/F 15-20S, D/B 20-25S ( measure by LOVE CUP), normally, we prefer to adopt the present viscosity of your own glue.
3.Solid contend: around 20%
4.Formula: just replace our additive with which you are using now.
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1.Two tanks system |
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Primary tank |
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Water |
171 kg |
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Corn starch |
23 kg |
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caustic |
6,5 kg (solid) |
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Heat |
60 °C |
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Stir time |
15minutes |
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Secondary tank |
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Water |
557 kg |
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Corn starch |
233 kg |
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CF2 |
5 kg |
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Stir time |
10 minutes |
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Drop down the primary tank into the secondary tank in 10 minutes, |
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Borax |
4kg |
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stir 10 to 15 minutes |
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2.One Tank system |
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Water |
880 lts |
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Caustic |
4 kg |
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Starch |
250 kg |
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Caustic |
4 kg Predisolve in 10 kg of water |
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Stir untill the viscosity is OK |
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CF 2 |
5 kg |
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Borax |
4 kg |
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Stir 10 to 15 minutes |
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Note: pre-dissolve CF2 with 70ºC hot water, if you have the electronic stirrer, it can be disolve with water of normal temperature |
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3.High share system |
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Water |
273 kg |
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Corn starch |
20 kg |
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Caustic 50% |
16 kg |
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Borax(deca) |
0,6 kg |
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Stir time |
30 sec |
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Heat |
40 °C |
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Stir time |
3 minutes |
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Water |
409 kg |
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CF2 |
5 kg pre-dissolve CF2 with 10kg of water |
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Corn starch |
271 kg |
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Borax(deca) |
2 kg |
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Stir time |
30 sec |
As a natural tannin product, CF2 has good natural tacky which will not affect the final adhesive but on the contrary, increase its bonding capability. It could run the machine 15-20% faster then before. Base on CF2's high bonding capacity, allows machine to run at lower application: since they are almost 80% of water in the glue applied to the paper, and more water means more soft cardboard, therefore, by reducing the application, mean less glue on the paper, you can get higher hardness and tensile strength in the final board as CF2 could enable the machine to reduce at least 30-50% application.
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