How to make a fully Flat Bottom Bag for coffee beans?
First, Prepare 3~4 layers of raw materials.
The raw materials usually use two styles: Frosted and Glossy/Shiny type. Frosted one, MOPP+VMPET+PE; Glossy/Shiny one, PET/VMPET/PE.
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Second, the general zipper, one-side zipper, one-way valve, and punch hole are acceptable to add.
Zipper we both use fully food grade HDPE made, and the valve also. See some detailed pictures attached.
One-way valve
Third, the final design makes.
We could provide a bag template file then you could directly make your final design inside. After the final design is finished, we offer a free digital draft service for you. When we move with mass production, all customized gravure printing plates will make after your own design is totally confirmed.
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