Mask bag sealing side of problem resolution

Symbol mask bag quality to a certain extent the quality of the mask for you love beautiful female consumers, face film bag of delicate and beautiful appearance, are more likely to attract the consumer. In the light of the common production mask bag sealing side problems were analyzed, and the following analysis such as did not indicate the material structure, to PET/AL/PE general structure as an example for analysis. 1, sealing side wrinkle in PET/AL/PE, for example, generally the mask of PE are the facial mask is special PE material production, its general characteristic is the low temperature heat sealing performance. Occurs often in our operation process, high temperature high temperature, low temperature when it's easy to have a virtual closure phenomenon. Therefore, our production management personnel and the machine operator to be very clear, in the production of a certain speed, each the temperature of the heat sealing knife is different, need to be clear data records. Of course on the film of face of PE raw material processing, can also do for PE film with a suitable temperature category, in order to better control the temperature of the sealing side of range ( Note: the thickness of the PE proportions than the structure of the general requirements will be high, that is to say, can't get too much of a thickness deviation) 。 , mechanical equipment of cooling blade parts, such as cooling when the temperature is not enough, also can appear sealing side wrinkle phenomenon, namely the cooling part, didn't adjust the cooling temperature of the aluminum foil. Heat sealing part, if the pressure adjustment is not balance, also can appear there are creases sealing side. Relative to the MAT - OPP as fabric structure, the PET to the fabric structure of sealing side, frilling phenomena will be relatively less. 2, sealing side virtual closure phenomenon also is PET/AL/PE, for example, we are very clear with aluminum foil material structure, in both acetate soluble dry compound process and solvent-free composite, for semi-finished products, on both ends of the roll of film will always be about 5 mm is not the width of the composite completely, so that no composite virtual edge, the problem is easy to produce. Due to the complex machine is used in multilayer composite material, not may appear absolutely parallel flat surface, therefore in the process of bag making, through the above the guide roller, the there is a aluminum foil is easy to be rotten or shave off phenomenon, debris blown rotten of the aluminum foil is easy to be involved in between PE and PE layer ( Inside the bag) , so the material involved in forming virtual closure phenomenon in the sealing side. In addition, the double version of the bag or veneer, lateral sealing side, sometimes also can appear high temperature while the phenomenon of temperature is not enough, at this time, most are heat sealing knife pressure caused by imbalance or sealing knife failed to lock screw. Of course it is possible that the raw material thickness, PE will also lead to virtual closure phenomenon in a heat sealing side, so for the mask for PE, need to be higher than normal PE thickness uniformity requirements. 3, sealing side bubble phenomenon in general, the aluminum foil bag sealing side have bubbles, all is due to the high temperature of heat sealing knife. But on the other hand, it is possible that the heat sealing knife pressure caused by the unbalanced or pressure is too great. 4, sealing side is uneven phenomenon in PET/AL/PE, for example, the first reason is with the first ( 2) Points in the first on the one hand, the same truth, is the cause of the aluminum foil is likely to be bad, then go with the composite film, easy to stay on the edge of knife, form a good thing, leading to pit, creasing phenomenon; The second aspect is the PE colloidal particles adhesion on cooling knife, has led to the pit concave phenomenon of sealing side. When switched on, therefore, need to seal the position such as knife, guide roller clean, avoid the bad phenomenon. And sealing knife defects, easy to appear the phenomenon. On the other hand is vice board silicone pressure for too long, to a certain capacity, softening or fluted phenomenon, easy to cause the adverse phenomenon; And this reason can cause the sealing side of bubbles or virtual closure phenomenon, so after reaching a certain amount of capacity, must replace the silica gel.