Screen Printing 900CPS Mirror Effect Ink For PET

Mirror-like screen printing ink for PET

Characteristics:

Special resin wq-8615 used for product the mirror-effect screen printing inks , has a good adhesion with PET materials, make the electroplated-effect more excellent and obvious. Self-dry after 5 hours at the normal temperature or dry by 10-20 mins’ baking at 100℃,has a good performance in the bending resistance.

Physical Property

Formula A: Screen printing

Function:

Great adhesion to cross-cut test and resistance to scraping by fingernail.

Some problems when use

• Bad adhesion of Mirror-effect ink after printing

Reason: general speaking, in order to guarantee the good mirror effect of printing ink, the content of resin is relatively low, so that affect the adhesion of ink, which is determined by ink’s characteristics.

Solution: by increasing volume of resin and using hardener agent.

• Bad mirror effect of ink after printing

Reason:

• Not suitable printing substrate is selected, mirror-effect ink show the great mirror effect when it was printed in the high transparent materials such as PET/PC/Glass, but not good mirror effect in the ordinary materials.
• In order to increase the adhesion of mirror-effect ink, some customers add transparent oil or other additives into it, that affect the mirror effect of ink.
• When the printing substrate of no resistance to solvent is used, strong solvent will corrode the substrate and affect the mirror effect.

• Problem of screen blocked by mirror-effect printing ink

Reason: In order to have good mirror effect, the resin content of mirror-effect ink is relatively low, at the same time, in order to get the normal viscosity of ink, the content of solvent in the ink is relatively high, however, the volatile speed of solvent is so fast and it makes the problem of blocking screen by printing ink. So the mirror-effect printing ink should be printed at fast speed

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