Zipper bag, and a solution

In many kinds of bags, zipper bag is a popular, appropriate use of appropriate convenient packaging. However, although the zipper bag is a lot of work at the market widely used, but in the produce process of bag making, to produce qualified standard of zipper bag is not simple. In the process of the whole zipper bag processing, there are still many problems large and small, a don't care will often present the heat sealing part is not flat, take off a layer, the phenomenon such as death, more than are many enterprises in the process of custom zipper bag. Today, a professional flexible packaging producers for zipper bag packaging production process, summed up the zipper bag produced easily present problems and the reasons: 1, when zipper bag and the bag body sealing parts of the uneven; 2, when zipper bag and the bag body sealing parts of the present part of the delaminating phenomenon; 3, the ends of the bag with zipper with the edge of bag sealing area at the intersection of present & other; Dead plait & throughout; ； 4, when the bag zipper ends with the edge of bag sealing part presents part of the cross delaminating phenomenon; A professional flexible packaging producers packaging on the phenomenon of many classes exist bad zipper bag for query, found the problem related to the following: 1, the heat shrinkage rate of zipper itself is greater than the heat shrinkage rate of compound thin film; 2, the melting point of zipper itself is greater than or equal to the melting point of heat sealing layer of film; 3, zippers on the cross section of snap button is too large; 4, zipper bag heat sealing bag making machine part planning is not reasonable, advocate using ultrasonic heat sealing device; 5, part of the heat sealing head planning is not reasonable, Too small) ； 6, ultrasonic heat sealing device output power lack or lack of pressure; 7, lack of ink layer and heat resistance. So, if you want to customize the eligibility criteria standard zipper bag, it is necessary to make packaging plant be aware of the above seven items in bag, only in the zipper bag processing serious attention regarding the above issue in the process of control, can produce high quality zipper bag.