High Quality coffee bag with one way valve kraft paper coffee bags with valve one-way valve coffee packing bags

Highest degassing performance of coffee valve.
Oxygen proof one way degassing Coffee valve
Precise opening & closing pressure control
Style beauty and various.
Accurate in size and easy to apply on machine.   Material: PP or PE diameter x high:  stock it form ours order, no Limite quantity.   More info for kraft paper bag
Material stucture :
4 -Layers: MOPP/Kraft/AL/LLDPE,MOPP/Kraft/VMPET/LLDPE,Kraft/PET/AL/LLDPE
3 -Layers:Kraft Paper Bag-Aluminum Foil-LLDPE,Kraft Paper-VMPET-LLDPE
2-Layers :Kraft Paper-Poly,Kraft Paper-CPP,Kraft Paper/PE etc
Thickness : From 70 microns-220 microns (2.73 mil-8.58 mil)
Capacity : From 1 oz- 10 LB
Printing : 1- 9 colors according to customers' artwork, AI,PDF or EPS format electronic files