A culture medium plate dish packaging bag

Abstract

The invention discloses a culture medium flat dish packaging bag, which comprises inner, middle and outer three-layer packaging bags. Extruded vacuum packaging bag, the top bag is a double-layer bag structure formed by sealing and pressing at least two top bag bodies, the air-permeable film is opaque, and the top bag body is transparent; the middle layer is multi-layer co-extruded vacuum packaging The bag is a cylindrical one-piece structure. The hot-melt seal and the bag body form a cylindrical vacuum bag with an open top and a seamless middle that is used to accommodate finished products. There are sterile spare paper-plastic bags and spare blank non-drying stickers inside; The outer multi-layer co-extrusion tubular vacuum packaging bag is a tubular one-piece structure, and the hot-melt seal and the bag body form a tubular vacuum bag with an open top, a seamless middle, and is used to accommodate the finished product; the above structure ensures Sealing, can well isolate external microorganisms, impermeable, airtight, puncture-resistant, tear-resistant, wear-resistant.

Description

technical field [0001] The invention relates to a packaging, in particular to a packaging bag for a disposable culture medium dish. Background technique [0002] At present, aseptic prefilled agar medium plates are mainly used for microbial monitoring in clean environments. Specific medium products are used to monitor and cultivate planktonic bacteria, sedimentary bacteria, and surface bacteria in clean environments to determine the quality of clean environments. The cleanliness level meets the requirements. It is mainly used for the monitoring of microbial indicators in the clean environment of the pharmaceutical, food, cosmetics, and medical industries. After the culture medium is made, its later storage and transportation are very important. It is a paper-plastic bag structure. One side of the bag is made of an opaque air-permeable film, and the other side is a fully transparent PET / PE composite film, which makes it impossible to fully observe the internal state of the pl...

AI Technical Summary

Problems solved by technology

[0002] At present, aseptic prefilled agar medium plates are mainly used for microbial monitoring in clean environments. Specific medium products are used to monitor and cultivate planktonic bacteria, sedimentary bacteria, and surface bacteria in clean environments to determine the quality of clean environments. The cleanliness level meets the requirements. It is mainly used for the monitoring of microbial indicators in the clean environment of the pharmaceutical, food, cosmetics, and medical industries. After the culture medium is made, its later storage and transportation are very important. It is a paper-plastic bag structure. One side of the bag is made of an opaque air-permeable film, and the other side is a fully transparent PET / PE composite film, which makes it impossible to fully observe the internal state of the plate. Most of the opaque part of the air-permeable film is made of dialysis paper film material. , the membrane material is easy to absorb water, once condensation occurs in the culture medium, the dialysis paper material is susceptible to moisture, resulting in enlarged membrane aperture or paper damage, causing pollution and affecting the quality of the plate. In addition, the membrane material has low strength and a short service life. long

In addition, a sealing strip is provided around the middle layer or the outer layer of the medium plate, which is made by overlapping two film layers and then bonding the edges. This structure requires multiple bonding, and the manufacturing process is complicated, and the bonding is easy to cause Vacuum bag leaks, poor sealing effect, easy to cause internal pollution of the plate

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