sealed box

Abstract

The invention discloses a sealing packing box with better sealing property, hygiene and environment friendliness. The sealing packing box is formed by a box cover and a box body with an injection molding ring; the box cover is formed by injection molding of a LDPE material, and a reversed buckling position is designed at the inside of the edge of the box cover; a seal ring made of a soft rubber is arranged at the bending position of the inner wall of the box cover; the box body is an integral product formed by dual processes of blistering and injection molding; the box body part is molded by performing injection molding on three to five layers of co-extruding materials; the opening of the box body is bent outwards and is properly lengthened to form a box opening edge material; the injection molding ring is formed on the box opening edge material by performing the injection molding process on a PP (propene polymer) material. After the box cover covers, the inner side of the box cover and the injection molding ring are in interference fit, a check ring of the injection molding ring tightly extrudes the soft rubber seal ring in the box cover, and meanwhile, the reversed buckling position of the box cover is buckled on the bottom of the injection molding ring, so the dual-layer sealing effect is achieved. The sealing packing box is suitable for food such as various sauces, jam, seasonings, biscuits, jellies needing to be stored for a long time.

Description

technical field [0001] The invention relates to a packaging box, in particular to a sealed packaging box with better sealing effect and more hygienic and environmental protection. Background technique [0002] At present, most of the packaging boxes on the market are made of blister products, but the blister packaging boxes have a common defect-poor sealing performance. Therefore, most merchants will choose film or Tin foil sealing, but this kind of treatment makes the blister products only one-time use, resulting in great waste and not environmentally friendly. Contents of the invention [0003] In view of the above deficiencies, the present invention provides a better sealing effect, more hygienic and environmentally friendly sealed packaging box, which includes a box cover processed by injection molding technology and a box body processed by blister technology. The opening end of the body is bent outwards and extended to form a ring-shaped edge material of the box mout...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the packaging boxes on the market are made of blister products, but the blister packaging boxes have a common defect-poor sealing performance. Therefore, most merchants will choose film or Tin foil sealing, but this kind of treatment makes the blister products only one-time use, resulting in great waste and not environmentally friendly

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