Medical four-layer header bag connecting film and manufacturing process thereof

Abstract

The invention discloses a medical four-layer header bag connecting film and a manufacturing process thereof, the medical four-layer header bag connecting film is of a three-layer structure, and the three-layer structure comprises an outer DuPont Tyvek layer, a middle layer made of LDPE and LLDPE, and an inner layer made of LDPE and 1-butene, and the middle layer and the inner layer are compoundedto form a PE connecting film. And finally, by carrying out low-temperature heat sealing on the PE connecting film and DuPont Tyvek at the temperature of 100 DEG C, a finished product film is formed, wherein the finished product film is fixedly sealed at the bag opening of a header bag. The middle layer made of LDPE and LLDPE and the inner layer made of LDPE and 1-butene are compounded to form thePE connecting film, the PE connecting film and the DuPont Tyvek are subjected to strong low-temperature hot pressing to form the finished product film, and the finished product film is fixedly sealedat the bag opening of the header bag, so that the structure does not need to use glue and is environment-friendly. And meshes can be formed in the PE connecting film, so that the PE connecting film isgood in air permeability and low in cost.

Description

technical field [0001] The invention relates to a header bag connecting film and a manufacturing process thereof, in particular to a medical four-layer header bag connecting film and a manufacturing process thereof. Background technique [0002] At present, the four-layer header pouch connecting film for medical use on the market generally includes an outer layer of Tyvek base paper, an adhesive layer, and an inner layer of co-extruded film, and the above three layers are hot-pressed at high temperature, and then sealed on the header pouch body Forming a four-layer head bag, the adhesive layer is generally composed of glue, so there will be a problem of powder falling, and this structure has poor air permeability and high cost. Contents of the invention [0003] The main purpose of the present invention is to provide a four-layer header pouch connecting film for medical use and its manufacturing process, which can effectively solve the problems in the background technology...

AI Technical Summary

Problems solved by technology

[0002] At present, the four-layer header pouch connecting film for medical use on the market generally includes an outer layer of Tyvek base paper, an adhesive layer, and an inner layer of co-extruded film, and the above three layers are hot-pressed at high temperature, and then sealed on the header pouch body Form a four-layer top bag, and its adhesive layer is generally composed of glue, so there will be problems of powder falling, and this structure has poor air permeability and high cost