Plastic bags critical edge, how to deal with broken?

Plastic bags in the production, critical edge often occur in the process of transport, storage, breakage phenomenon, seriously affect the quality of the products of the enterprise. How can we deal with plastic bags detonation edge, breakage problem? Here, professional manufacturer of flexible packaging, packaging, combining the experience itself produces high quality plastic bags to interpret for you under plastic detonation edge, against breakage. A dilapidated, plastic explosive edge, common in the process of automatic packing detonation, broken: automatic packaging, filling the contents of a dramatic impact on the bottom of the bag, assume that the bottom of the bag can't withstand the shock will appear at the bottom of the cracking, cracking of the side. Delivery and product accumulation during blasting, broken: flexible packaging bags overwhelming for the product and transport process of friction pile pressure cause the internal pressure increases, the critical edge, broken bag. Punctures: in the process of vacuum packing bag thickness slants thin, vacuum packing bag contraction, content with hard objects, stitch or vacuum machine with hard objects ( Dirt) Puncture bag side blasting, broken. High temperature cooking bags in vacuum, or high temperature and high pressure sterilization, due to insufficient pressure, high temperature resistant material critical edge, broken. Frozen bags because the temperature is low, harden crisp packet, frozen fracture resistance, durable thorn bad cause bag edge, broken. Two, plastic explosive edge, the cause of the breakage of 1, in the process of automatic packing bag edge, the cause of the breakage of the general heat sealing strength refers to the two thin film by a thermal method to stick together, the bonding strength after cooling completely. But in automatic packaging production line, two layers of packaging material has not received enough cooling time, and so are not suitable for heat sealing strength of packaging materials used in here. To achieve the best hot sticky film material force is one of the most suitable temperature point, and when the temperature of the heat sealing temperature across the point after hot sticky force showed a downward trend. In automatic packaging production line, the contents of a flexible packaging bags of heat sealing and filling almost simultaneously, thus filled in contents, heat sealing part of the bag is not completely cooled, can withstand the impact and can also be compromised. Filled contents for the impact of the flexible packaging bags, can use hot glue pull experiment apparatus by scheduling heat sealing temperature, heat sealing pressure and heat sealing time to hot sticky force curve drawing, choosing the best parameters of heat sealing combination is used to produce line. 2, in the process of the storage and transport of critical edge, the causes for the damage items packed in plastic bags, when check and shipping for items of put and cause the increase of gas pressure in the air bag, and then the critical edge of flexible packaging bags, breakage. Because explosion occurred between edge, the position of the damage, more focused on the material of a thermal bearing, namely the heat sealing the thin place of flexible packaging bags, plastic bags can detects consequently packaging thermal heat sealing strength of sealing the side, and then replace the material or the heat sealing process parameters are adjusted to avoid. Information and the heat sealing strength based on the detection method can be roughly divided into tensile heat sealing strength and swelling heat sealing strength. Is to be able to utilize the tensile machine to detect tensile heat sealing strength, is the packaging material in force in the same direction, force value under the condition of uniform heat sealing place to resist the ability of the separation, particularly applicable to evaluate the opening of flexible packaging bags, but not for dealing with flexible packaging bags broken bag, because the cause of broken bag bag of the direction and size of internal pressure is uncertain, and the material of heat sealing near because of the part under pressure may appear deformation, compression damage flexible packaging bags. Expansion of heat sealing strength of the need to use the leakage and sealing strength tester, to the flexible packaging bag pressure, at the same time can detect the intensity of the worst in the whole packing the thin place ( Not limited to heat sealing parts) 。 Because swell heat sealing strength does not represent the average intensity of heat sealing, so expansion heat sealing strength and there is no connection between tensile heat sealing strength. Expansion heat sealing strength and the size of the flexible packaging bags, geometry and the use of materials. 3, food vacuum packaging critical edge, and damaged the reasons mainly for the food vacuum packaging design and vacuum packaging material two aspects reasons: food vacuum packaging design aspects, such as the net content of contents or volume beyond the scope of soft packaging materials used, in the process of transport or sell circulation and slightly affected by external force, torn bags, cracking problems will occur. Generally as a vacuum bag heat sealing layer, the thickness of the material shall be not less than 50 um thick. Above is common plastic packaging bags of edge, the breakage situation and the reason, professional manufacturer of flexible packaging packaging to reasonably select material, in the hands of the rich experience in heat sealing, and all the bags are full inspection before they go out, let the packing bag of products not only delivered to your hand print is exquisite, the more there will be a guarantee of quality.