High-preservation-degree fresh food packing bag manufactured by natural plant fibers

Abstract

The invention relates to the technical field of preservation degree sealing of food packing bags, in particular to a high-preservation-degree fresh food packing bag manufactured by natural plant fibers. The high-preservation-degree fresh food packing bag comprises a packing bag main body; the packing bag main body is formed by a front fiber piece and a back fiber piece symmetrically arranged frontand back; the front fiber piece and the back fiber piece are formed by oppositely folding a natural plant fiber piece; and hot pressing sealing strips are arranged at the lower ends of the front fiber piece and the back fiber piece. The high-preservation-degree fresh food packing bag has the following beneficial effects: through cooperation of hot pressing grooves, grooves and arc clamping strips, the dual sealing of the upper end of the packing bag is realized, and the sealing degree is improved; the internal vacuum storage is realized by using a negative-pressure joint and a secondary bag at the lower end, so that the preservation time is prolonged; and through arrangement of the secondary bag and an S type through hole, fish-smell liquid flowing out from fresh food is absorbed in an inner cavity of the secondary bag by using negative-pressure suction at the lower end to achieve the purpose of solid-liquid separation, so that the preservation quality is improved, the preservation time is prolonged, and the food corruption is prevented.

Description

Technical field [0001] The invention relates to the technical field of freshness sealing of food packaging bags, in particular to a high freshness freshness food packaging bag made of natural plant fibers. Background technique [0002] Food packaging bag is a kind of packaging design, in order to facilitate preservation and storage of food in life, product packaging bags are produced. Food packaging bags refer to film containers that are in direct contact with food and used to hold and protect food. [0003] Most of the existing food packaging bags adopt hot-pressing sealing or card slot sealing to seal and preserve the food, but for fresh foods, especially meat and seafood foods, there will be more fishy odors during storage The liquid flows out, which causes the internal food to corrode. At the same time, traditional packaging bags are mostly made of film plastic bags, which are easy to freeze with the inner wall of the refrigerator during cryopreservation, which makes the bag d...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing food packaging bags use heat sealing or card slot sealing to seal and store food, but for fresh food, especially meat and seafood, there will be more fishy smell during storage The liquid flows out, causing the internal food to rot. At the same time, the traditional packaging bags are mostly made of film plastic bags, which are easy to freeze with the inner wall of the refrigerator during frozen storage, which makes it difficult to take out the bag body. The existing packaging bags have poor sealing effect , cannot achieve long-term storage

[0004] To this end, a high-preservation fresh food packaging bag made of natural plant fibers is provided to solve the problems of liquid outflow, freezing and airtightness when the packaging bag preserves fresh food.

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