75% alcohol resistance test (To ensure the printed surface is isolated from drinks)
Rub the printed surface with 75% alcohol for 10X.
Check for any color bleeding
The biggest advantage of our water-based coating paper straw is no glue, one layer of paper, no fading, food grade ink.
Our straws are made by WBBC paper (water-based barrier coated) paper. It is a plastic-free coating on paper. The coating can provide paper with oil and water resistance and heat-sealing properties.
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