What is polyamide resin?
Oct 15, 2024
Polyamide resin is reacted from dimer acid and diamine. This product is mainly used in gravure plastic printing inks and paper printing inks. It has very good adhesion on polyethylene material, especially be fit for printing on polyethylene film, plastic film such as tinsel composite laminated film. The printing ink which is made from this polyamide resin has good adhesion, high gloss, low freezing point, good solvent release and good compatible with nitrocotton.
We are producing 2 types of Polyamide resin at present.
Type 1: Common use for gravure plastic printing ink, flexographic ink
Item |
Specification |
||||
Co-solvent polyamide resin |
Alcohol soluble polyamide resin |
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SM-550L |
SM-550 |
SM-550H |
SM-560 |
SM-960 |
|
Acid value (mgKOH/g) ≤ |
5 |
5 |
5 |
5 |
5 |
Amine value (mgKOH/g) ≤ |
5 |
5 |
5 |
5 |
5 |
Viscosity (mpa.s/25 οC) |
70-100 |
100-140 |
140-170 |
170-200 |
120-170 |
Softening point (οC) |
105-118 |
105-118 |
105-118 |
105-118 |
115-125 |
Color (Fe-Co) ≤ |
8 |
8 |
8 |
8 |
8 |
Freezing point ≤ |
2 |
2 |
2 |
2 |
2 |
Note: viscosity of co-solvent polyamide resin, 40% solid,
solvents are xylene: isopropanol: alcohol=4:3:3, by rotation method.
Viscosity of alcohol soluble polyamide resin, 50% solid, solvent is alcohol, rotation method.
Type 2: Specialize for untreated PE/PP gravure ink
it has excellent adhesion to untreated PE/PP. Meanwhile, it has outstanding adhesion to treated PE/PP and aluminum foil as well. As printing ink applied both to untreated and treated PE/PP, which has wide range of adaptability.
|
Index |
Acid Value mgKOH/g |
<15 |
Amine value mgKOH/g |
<3 |
Softening point ºC |
90~100 |
|
30-70 mpa.S/25ºC |
Mixing Proportion: 40% resin, |
|
Color size |
≤12 |
According to customer's request, we also can produce polyamide resin with excellent freezing resistance or high temperature resistance. So if you have any questions, pls contact us now.