Preparation method of bifacial hydrophilic film

Abstract

The invention discloses a preparation method of a bifacial hydrophilic film. The bifacial hydrophilic film comprises a substrate, wherein an upper-layer hydrophilic film is coated on the upper surfaceof the substrate, an upper-layer PE film is compounded on the upper-layer hydrophilic film, a lower-layer hydrophilic film is coated on the lower surface of the substrate, and a lower-layer PE film is compounded on the lower-layer hydrophilic film. The preparation method of the bifacial hydrophilic film comprises the following steps: 1, firstly coating the lower-layer hydrophilic film; 2, performing drying, and then, compounding the lower-layer PE film; 3, coating the upper-layer hydrophilic film; 4, performing low-temperature drying, and then, compounding the upper-layer PE film; and 5, performing cutting. The bifacial hydrophilic film disclosed by the invention can greatly improve the blood diffusion performance of the hydrophilic film of a blood glucose test strip so as to further improve the detection accuracy of blood glucose indexes.

Description

technical field [0001] The invention relates to a manufacturing method of a double-sided hydrophilic film. Background technique [0002] In rapid blood glucose diagnostic testing, blood glucose test strips have been widely used. In blood glucose test strips, in addition to oxidoreductases and conductive media, the factors that affect the detection accuracy are hydrophilic membranes. When the blood sample to be tested is dropped on the blood glucose test strip, the hydrophilic membrane can quickly spread the blood drop and suck it into the working area of ​​the electrode to ensure the blood glucose detection. [0003] In order to improve the detection accuracy of the blood glucose test strip, the diffusion performance of the hydrophilic membrane can only be improved when the oxidoreductase and the conductive medium have been determined. How to improve the performance of the hydrophilic membrane of blood glucose test strips is an important topic for those skilled in the art....

AI Technical Summary

Problems solved by technology

[0003] In order to improve the detection accuracy of blood glucose test strips, the diffusion performance of the hydrophilic membrane can only be improved when the oxidoreductase and the conductive medium have been determined.

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