Corrugated paper printing ink characteristics

Corrugated paper printing ink characteristics

Water-based inks are roughly divided into two categories:

a Rosin - Maleic acid modified resin series (low grade)

b acrylic resin series (high grade)

Two pairs of water-based ink performance requirements

1 After long-term storage of the precipitate, it should be easily redispersible after stirring;

2 to have good flow properties and viscosity;

3 has good storage stability;

4 Drying performance is fast and appropriate;

5 can not have any adverse effects on printing plates and printing presses;

6 can not have too much pungent odor.

Three water-based ink technical parameters:

1 Color: Approximate to the standard template Note: The manual color development wheel contrasts the sample and the standard sample without connecting.

2 Fineness: less than 20 micron instrument: 0-50 micron scraper fineness meter.

3 Viscosity: 20 seconds ± 5 seconds Instrument: RIGOSHA4# cup (25°C).

4 pH: 8.0-9.

5 Instruments: portable pH meter (PHB-2 type).. Heavy metal content: in line with the world's packaging green environmental protection standards.

6 Compliance with requirements

The correct use of four water-based inks:

1 It should be fully agitated before use to keep the ink composition uniform;

2 After opening and use, the ink should be stamped and sealed immediately to prevent dust from falling and crusting.

3 If more than one ink contains impurities, it should be filtered first and used together with new ink.

4 Please avoid close to high temperature or sun exposure during storage.

5 If it is found that the viscosity of the applied ink is slightly larger, an appropriate amount of water can be added for adjustment.

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