Dongguan Beite packaging materials Co., Ltd. introduces five factors affecting the anti-static bag breaking of color printing composite packaging bag
1、 Peel strength of composite films
If the peel strength of the composite film is too low, it is difficult to meet the requirements of multi-layer composite materials under stress at the same time, resulting in the force can not be better dispersed, then the bag will be broken in the process of falling. In addition, due to the poor heat resistance of some adhesives in high-temperature cooking bags, especially in some complex structures (such as bopa15 / AL7 / cpp70), the sealing edge will be broken and the composite film will be peeled off.
2、 Bag making technology
The excessive high temperature of bag making will cause the performance of heat sealing material at the heat sealing place to decline; the excessive pressure of bag making will cause the heat sealing material at the heat sealing place to be extruded, and the heat and strength of sealing will be reduced, resulting in the broken bag when the package falls. If the heat sealing strip of bag making is too sharp or there are mechanical flying thorns, the heat sealing edge of the bag will be damaged, resulting in bag breakage.
3、 Material selection
Dongguan Beite packaging material Co., Ltd. introduced that the material must have enough thickness. If the thickness is not enough, the strength of the composite film will be insufficient, and the bag will be broken. Attention should be paid to the addition of recycled materials, all aspects of the properties of recycled materials will be reduced. If the recycled materials are added too much, the strength of composite membrane will be insufficient, resulting in broken bags. LLDPE and MPE were added in the paper bag process of PE film to improve the strength and flexibility of PE, so as to reduce the broken bag. If the package is used in the low temperature freezing environment, the low temperature resistant packaging material (such as BOPA) must be selected to produce the composite film, otherwise the composite film will be brittle in the low-temperature freezing environment.
4、 Other aspects of bags
When packaging some heavy packaging or powder goods such as salt, washing powder, etc., the air in the bag should be discharged after filling and before heat sealing, so as to reduce the stress on the wall of the packaging bag, and let the solid matter directly bear the force, so as to reduce the damage of the bag.
5、 Relationship between toughness strength and dropping property of packaging bags
Dongguan Beite packaging material Co., Ltd. introduced that the integral area of the force value deformation curve basically represents the energy absorbed by the packaging material in the stretching process when measuring the heat sealing strength of the packaging bag. Although the tensile deformation curve of packaging materials can not simulate the stress deformation curve when it drops, it can still explain the main influencing factors of drop performance. In addition, temperature has an obvious effect on the drop of packaging. For example, in winter, some bags of OPP / / CPP materials show the phenomenon of increasing damage rate. Moreover, the low-temperature storage environment is also a big test for the mechanical properties of the packaging.
In short, in order to be responsible for the majority of consumers, but also for the development and progress of the enterprise itself, we will introduce the performance of various packaging bags to each customer in detail, so that customers can have a detailed understanding. Good products should be packaged well. Hannah plastic packaging is preferred for color printing composite bags! Thank you for your support and affirmation of Hannah plastic packaging! http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag