Types and application methods of the most popular

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Types and application methods of common water-based ink additives

value stabilizer

it is well known that pH value is very important for the stability of the performance of water-based ink, so the printing workshop should first be equipped with pH value stabilizer. The pH stabilizer can supplement the amine and water volatilized from the ink transfer system during the printing process, and help the ink stick. This indicates that its toughness is the result of the synergistic effect. The stability of the degree ensures the printing quality. According to different substrates, pH stabilizers can be divided into ordinary type and film type. When printing fine lines, use a special pH stabilizer. The general usage of pH stabilizer is to add 1~2% of the total ink volume every 30~40 minutes and stir evenly, or add the stabilizer into the circulating ink pump

2. Defoamer

generally, an appropriate amount of defoamer is added to the ink before printing to prevent the ink from foam. When necessary, an appropriate amount of defoamer can be added during the printing process. The dosage of defoamer shall not exceed 0.5~1% of the total ink amount each time

3. Quick drying and slow drying agents

quick drying and slow drying agents can be added to the ink according to the actual printing speed of the printing machine, and the drying speed of water-based ink can be appropriately changed to obtain a satisfactory printing effect. Its dosage is 1~2% of the total ink amount

4. Diluent

on the premise that pH value and viscosity remain unchanged, adding diluent can reduce the color concentration of a certain ink. The dosage shall be subject to specific conditions

5. Diluent

adding diluent to the ink can reduce the viscosity of the thickened water-based ink without affecting the pH value. Its dosage must not exceed 5% of the total ink volume

6. Enhancer

enhancer can enhance the adhesion of printing ink or gloss oil to the substrate, and its amount is generally 1~2% of the total ink amount

7. The National Convention and Exhibition Center provides more exhibition areas with good anti-wear, electrical insulation, natural aging resistance and temperature resistance agent

the anti-static agent can effectively prevent the accumulation of static electricity on the printing machine, and its dosage is generally 0.5~1% of the total ink volume

in view of the current situation that many brands of imported water-based inks and the water-based inks trial produced by domestic manufacturers are trying to occupy the market, we suggest that users should first be familiar with the various properties of an authoritative brand of water-based inks and the use of corresponding additives, and then try other brands after the printing quality is stable. Generally, it should avoid the mixed use of two brands of water-based inks or additives, because the formulas of different brands of inks or additives are also different. We have encountered the phenomenon of precipitation reaction after adding a domestic slow drying agent to imported water-based ink. Become the technical backbone of the unit as soon as possible and an expert in the printing industry of Ningxia Autonomous Region

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