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Milk Invisible Ink

2017-05-08 22:47:48Author:
[Introduction]  how to make milk Invisible Ink with your playing cards to make marked playing cards?...

1\Dip a cotton swab into a shallow dish of milk.

2\Use the cotton swab to write a message onto a white piece of paper. Allow the milk to dry.

3\Dry the message for about 30 minutes.

4\Expose the message to heat. You can use a light bulb, candle/flame, or an iron. The milk will heat up at a slower rate than the paper, which will cause the message to reappear.

5\Now, your milk ink is ok, you can use milk invisible ink to make your poker cards.

Published my comment
kuangmo zhang 2017-05-11 17:19:15

how to buy invisible ink cards from your website?

Oliver 2017-04-24 17:24:09

Your company Automatic tracking scanning camera can automatic any poker cards?