Water-based ink acrylic emulsion application experimental study

Second, the experimental part

1. Objective of the experiment: To analyze the effect of acrylic emulsion on the abrasion resistance, gloss, and water resistance of water-based inks, and to find suitable emulsion polymer models through experiments.

2. Experimental materials: acrylic resin Acrylic Resin, K-1616, Omnicryl-1824, neocryla-1094, PD-9A, PE/PTFE compound wax milk, oven, homemade water-based ink and so on.

3. Experimental formula:

Pigments 11%

Resin liquid 29.5%

Ethanol 9%

Propylene glycol methyl ether 8%

Wetting Dispersant 0.5%

Waterborne wax 1%

Defoamer 0.5%

Leveling agent 0.5%

Water 10%

Resin emulsion 30%

4. Experimental procedure: The resin or emulsion was coated on a glass plate, placed in an oven at about 100 DEG C., dried, observed for its luster, transparency and hardness, and a high molecular weight, high hardness film forming emulsion Acrylic Resin was selected from the initial stage. K-1616, Omnicryl-1824, neocryla-1094, PD-9A. Each emulsion was proportioned with the above water-based ink at a certain ratio. After the first test, the best one was selected. After the wax was mixed with the wax at a predetermined ratio, the test was performed again. We obtained the results shown in Table 1.

5. Analysis and conclusion: It can be seen that different emulsion polymers can be used to obtain different film forming properties. When the carton ink is not used after printing, the film forming property and blocking resistance are not very high, and high light, abrasion resistance, water resistance, etc. are the most important properties. Therefore, properly increasing the proportion of hard emulsion in the emulsion is beneficial to improvement. Wear resistance. From the cost point of view, for the ink that is not very demanding, some of the grinding resin (such as Acrylic Resin) can be added to the dilute material. For high-grade carton inks that are suitable for high-speed printing, considering the comprehensive balance of high gloss, abrasion resistance, high hiding power, and filming and blocking resistance, the use of emulsions and waxes (such as Omnicryl-1824+PE/PTFE) will be the most Best choice. (Text / Wang Dong Liu Yan)