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Stretch film vacuum packaging machine workflow

September 30, 2019

Stretch-wrapped film is a kind of packaging method which is produced by mechanical stretching device or manual stretching of film at room temperature, which is convenient for transportation and storage. It is a very international packaging. form. Imported resin and advanced flow-through film extrusion production process. It has good tensile properties, tear resistance, strong penetration resistance, high transparency, good self-adhesiveness and high retraction rate, tight packaging and no looseness. Can be widely used in chemical raw materials, fertilizers, food, mechanical and electrical products, textile products, and other single-piece or tray packaging and other Strapping packaging. A higher degree vacuum packaging machine, how it works in the end, let's talk about it.
The general process of the Stretch Film vacuum packaging machine is the film stretch forming, filling materials, vacuuming, aeration, heat sealing, coding / coding, slitting and so on. Such a device has the function of a whole production line.
The main steps are divided into the following steps:
First, the lower film preheating: The stretch film vacuum packaging machine first needs to heat the lower film to the set temperature to make the film soft, and then prepare for the next process.
Second, the lower film forming: the stretch film vacuum packaging machine transports the preheated film to the forming station through the previous process, and stretches the film to the desired shape according to the already formed molding die.
Third, vacuum and sealing: stretch film vacuum packaging machine is a more important part of this link, whether the product can achieve a better vacuum depends on this link. This work process is completed by the two processes of vacuuming and sealing. The upper film is covered by the lower film of the package, and then sent to the vacuum chamber. The vacuuming operation is first performed, and then the upper and lower films are placed. The combined parts are heat sealed together.
Fourth, coding / coding: stretch film vacuum packaging machine this link is to print the production date, and now the general manufacturers will use the inkjet printer to print the production date of the product, because the spray relative to the coding machine The production date of the code machine will not appear to be the phenomenon of the word drop and one, and the code machine is more prone to such a phenomenon. Now a new type of coding method has been developed on the market, that is, the laser printer. The production date of laser jet printer has a long retention time, and there is no word drop phenomenon. Compared with the advantage of the printer, it does not require ink, which saves a production cost.

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