Bifacial hydrophilic film

Abstract

The invention discloses a bifacial hydrophilic film which comprises a substrate, wherein an upper-layer hydrophilic film is coated on the upper surface of the substrate, a lower-layer hydrophilic filmis coated on the lower surface of the substrate, an upper-layer PE film is compounded on the upper-layer hydrophilic film, and a lower-layer PE film is compounded on the lower-layer hydrophilic film.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. The hydrophilic coating solvent disclosed by the invention adopts an alcohol solvent which is easy to dry at low temperature, so that the drying process can be performed by adopting a low-temperature drying method so as to avoid the damage to the PE films.

Description

technical field [0001] The invention relates to a double-sided hydrophilic film. Background technique [0002] Blood glucose test strips have been widely used in blood glucose rapid diagnostic testing. In blood glucose test strips, in addition to oxidoreductase and conductive media, the hydrophilic membrane affects the detection accuracy. 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 draw it into the working area of ​​the electrode to ensure the blood glucose detection. [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. How to improve the performance of the hydrophilic membrane of blood glucose test strips is an important issue before those skilled in the art. Contents of the invention [0004] The pu...

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