Jinan square bottom bag is named for its square bottom and has many applications in daily life and production in various industries. So how to correctly control the key points of square bottom bag production? Let's talk about some problems for you.
With the expansion of the application field, more and more corner bottom bag derivative products are produced, and most of them are brand-new materials, which have the characteristics of high strength, high barrier, non-toxic and tasteless, and strong toughness. At the same time, due to the difficulty in forming the bottom corner, the number of heat sealing layers at the bottom is large, the requirements for bag making are high, and the production quality problems of square bottom bags are common. Then, next.
As we all know, in the manufacturing process of soft vinyl packaging bags, the process of heat sealing is very important, and it is also the process of inspecting the quality of packaging bags. As long as there is a small mistake in heat sealing bag making, the previous work will be wasted. Especially for corner bottom bags with strict bag making process, this process must be checked more strictly.
Strictly pay attention to the heat sealing temperature of the corner bottom bag. Although the heat sealing temperature range of different materials is different, the heat sealing temperature is an important factor that affects and controls the heat sealing quality of square bottom bags. If the printing substrate has good temperature resistance, increasing the heat sealing temperature can improve the production efficiency.
When the temperature resistance of the base material is poor, the heat sealing temperature shall be reduced as much as possible. When the heat sealing temperature is too high, the heat sealing material at the heat sealing part will also melt and extrude, thus reducing the heat sealing strength of the corner bottom bag.
Secondly, the heat sealing pressure and speed of the square bottom bag also need to be strictly noted. The heat sealing pressure of the corner bottom bag is determined according to the performance, thickness and heat sealing width of the composite film. The heat sealing speed is the actual embodiment of the production efficiency of the bag making machine, and is also an important factor affecting the heat sealing strength and appearance performance of the square bottom bag.
In daily life, you can always see plastic bags with specific shapes. Careful people will notice that there are plastic bags outside the large and small electrical appliances, which are consistent with the size of the electrical appliances.
The square bottom bag mentioned above can not only be used to pack some electrical appliances, but also can prevent wind and dust. When the electric appliance cannot be used for a long time, the corner bottom bag can be used to prevent wind and dust. Even if it is damaged in the process of moving, its composition is also made of synthetic resin, which determines that it will not have a great impact on the environment and conforms to the current national environmental protection concept.
In addition, in order to keep the film flat and avoid the shrinkage and warpage of the heat sealing part of the square bottom bag, the tension must be well controlled during the manufacturing of the square bottom bag. In addition, please avoid adverse factors such as high water temperature and poor cooling water circulation during heat seal cooling, resulting in poor cooling and reduced heat seal strength.
Square bottom bags are very common in our life, but not everyone knows its function, so its value cannot be realized. Customized plastic bags and corresponding plastic bags closely fit each other, playing a certain protective role. If you have any needs or questions, please come to our website https://www.jnsuliao.com Consult.