I recently did an order of 400 koozies only to find out the ink started bleeding on the koozie once they started using them. What are some important things I should know when customizing koozies? What ink is best on what material koozie? What temperature should I have the dryer at? Is there anything I need to add to the ink specifically for koozies? I have another order of 400 koozies to do and I don't want to make the same mistake. Please HELP!