Non magnetic single component powdered ink
A single-component, non-magnetic technology, applied in ink, household utensils, applications, etc., can solve the problems of blackness and bottom ash that plague laser printer toner, poor versatility, blackness reduction, etc., and achieve stable image quality , enhance the uniformity and durability, improve the effect of blackness
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[0006] The composition and weight ratio of the present invention are: resin: 60-90%, colorant: 1-35%, paraffin: 2-10%, charging agent: 0.1-4%, alkaline earth metal oxide: 0.1-10% , External additives: 0.1 to 5%. Example: styrene-acrylic resin: 84%, carbon black: 7%, paraffin: 3.5%, charging agent: 2.6%, strontium oxide: 2%, silicon dioxide: 0.9%.
[0007] The alkaline earth metal oxides are magnesium oxide, calcium oxide, strontium oxide and barium oxide.
[0008] The preparation process is as follows: weigh the resin, magnetic powder, colorant, paraffin, charging agent, and alkaline earth metal oxide in proportion, put them into the raw material mixer and mix them thoroughly for 10-30 minutes, then knead and press them into flakes by the kneader , After pulverization and classification, the graded product is obtained. The particle size of the graded product is controlled at 5-14 μm. Finally, the external additive is added to the graded product, and then the final mixer is fu...
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