Cover film for testing, testing member, and method of manufacturing cover film for testing

A cover film for testing configured to secure a specimen to be stored within at least one groove extending below a surface of a substrate for testing, the cover film for testing comprising:

• a base material layer;
• a hydrophilic coating layer laminated on an entire surface of the base material layer;
• and
• a patterned adhesive layer laminated on a surface of the hydrophilic coating layer and extending across the entire surface of the base material layer on which the hydrophilic coated layer is laminated, the patterned adhesive layer having a thickness of 0.5 to 15 μm, wherein
• the cover film for testing has a region within the patterned adhesive layer through which the hydrophilic coating layer is exposed, and
• the patterned adhesive layer comprises a pressure sensitive adhesive and is configured to adhere the cover film for testing to a surface of the substrate without contacting the at least one groove.

A testing member comprising:

• a substrate having a surface provided with at least one groove extending below the surface of the substrate and being configured to store a specimen for testing therein;
• and
• a cover film laminated on the surface of the substrate provided with the at least one groove, the cover film comprising:
• a base material layer;
• a hydrophilic coating layer laminated on an entire surface of the base material layer;
• and
• an adhesive layer laminated on a surface of the hydrophilic coating layer and extending across the entire surface of the base layer on which the hydrophilic coating layer is laminated, wherein
• the adhesive layer is configured to adhere the cover film to the surface of the substrate without contacting the at least one groove, and
• the testing member has a configuration for performing an optical test for a specimen stored in the at least one groove of the substrate, the configuration including the cover film having a region in which the adhesive layer is absent and the hydrophilic coating layer is exposed.