Four-edge sealing mould for packaging film

Abstract

The invention discloses a four-edge sealing mould for a packaging film. The four-edge sealing mould comprises a front heating module and a reverse heating module; a heating device consistent with seal creases of the edges of the packaging film is arranged on the front heating module; and a heating device corresponding to the front heating module is arranged on the reverse heating module. The four edges of the packaging film can be sealed at one step when the front heating module and the reverse heating module are closed to clamp the packaging film. By the four-edge sealing mould, the four edges of the packaging film can be sealed tightly and firmly under double-side heating effects of the front heating module and the reverse heating module, defects of air leakage and liquid leakage caused by single-side heating during conventional production of four-edge sealed products such as alcohol prep pads can be avoided fundamentally, operability in mass production is high, loss is reduced greatly, the alcohol prep pads packaged with the packaging film are good in packaging sealing effect, volatilization of liquid inside the products is prevented effectively, and stability and effectiveness of the products are kept for a long time.

Description

technical field [0001] The invention relates to an edge-sealing mold for a packaging film, in particular to an edge-sealing mold capable of sealing four sides of a packaging film at one time by adopting a double-sided heating method; it belongs to the technical field of edge-sealing molds for packaging films. Background technique [0002] At present, there are more and more various medical disinfection products. Alcohol, as the most popular disinfectant, is used to make alcohol cotton balls and alcohol cotton sheets, etc. Among them, alcohol cotton sheets are more convenient for people to carry and use, and have a wider range of applications. The four-side-sealed alcohol cotton sheets on the market often have unsatisfactory airtightness. Because they are generally sealed with a single-sided heating module during the production process, it is easy to cause air and water leakage of the product, which is not easy for the long-term stability of alcohol and effectiveness. Conte...

AI Technical Summary

Problems solved by technology

[0002] At present, there are more and more various medical disinfection products. Alcohol, as the most popular disinfectant, is used to make alcohol cotton balls and alcohol cotton sheets, etc. Among them, alcohol cotton sheets are more convenient for people to carry and use, and have a wider range of applications. The four-side-sealed alcohol cotton sheets on the market often have unsatisfactory airtightness. Because they are generally sealed with a single-sided heating module during the production process, it is easy to cause air and water leakage of the product, which is not easy for the long-term stability of alcohol and effectiveness

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