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The Formation of Aluminum Foil Bags Sealing Edge Wrinkling Reasons
- Sales Manager : Windy
- 3月 16, 2022
Whether it is used for food packaging or electronic product packaging; pharmaceutical product packaging or cosmetic packaging, aluminium foil bags are welcomed by products from all walks of life because of their material characteristics. Of course, there are always various problems, and the common one is the sealing problem, which is mainly manifested in the following two aspects: the sealing edge is wrinkled due to the high temperature of the ironing knife, and the sealing edge is not successful due to the low temperature of the ironing knife.
So what is the reason for the formation of aluminum foil bag sealing these two problems? The formation of the sealing edge wrinkling reason may be the following aspects: glue and ink residual solvent is too much, in the sealing process to collect steam and present bubbles wrinkling and other phenomena; in the bag-making machine heat sealing knife parallelism, silicone soft hardness, flatness does not meet the requirements of heat sealing, heat sealing knife on the foreign body, etc.
The material used is not temperature resistant, the material wrinkles after high temperature sealing and ironing; the glue is not resistant to high temperature; the heat sealing time is too long will also lead to wrinkling. The reasons for unsuccessful sealing can be due to the low temperature or pressure of the heat sealing knife, the quality of the sealing material, the high starting temperature or the unstable function of the heat sealing. All these aspects will lead to aluminum foil bags can not seal the edge, so in the debugging needs to pay attention to.
