What the packing bag of material suitable for coffee bags?

Coffee is now most young people enjoy a drink, then what the packing bag of material suitable for coffee bags? With low gas barrier property of the material of coffee bags, even if very sealed tightly, the aroma of coffee will seep out. If you use the packaging material, oxygen in the air, water vapor and other gases will penetrate into it. If you are going to long-term preservation, be about to choose high gas barrier property of packaging. Even with the correct packaging method, if the improper selection of material will not be able to keep the packing bag of elaborate internal environment for a long time, so before everything is meaningless. Before coffee products are mostly canned, market rapid development in recent years, the plastic bags to replace the traditional canning. Accompany with the problems is that how the various properties of the film bonded together, producing the highest quality coffee bags. Most of the film's structure is like this: for high strength polyester or nylon outside, inside is dissolved, easy adhesion polyethylene heated. In the middle of the sandwich is the aluminum foil, polyester aluminum plating film, ethylene - Isolation properties such as high vinyl alcohol copolymer film. Each layer film glued together by using the method of pressing, sometimes emit the smell of glue and adhesive residue, because of the different shape and material, also can appear more difficult phenomenon of joint, so pay special attention to in the material selection and processing. The choose and buy high quality coffee bags, just come to our dongguang co. , LTD. , we have skilled technology, to provide you with high quality coffee bags! ！ ！