Pressure-sensitive adhesive for pressure-sensitive adhesive tape, tape cassette, and tape printer

An adhesive tape comprising:

• a substrate film;
• and
• adhesive being applied on a first surface of the substrate film so as to form a first adhesive layer onto which a polyethylene terephthalate film is stuck,
• wherein the adhesive is adjusted so as to satisfy conditions that, a first double-sided adhesive tape, in which the first adhesive layer and a second adhesive layer formed by applying the adhesive on a second surface of the substrate film are provided, is used and a peeling length of the polyethylene terephthalate film from the first adhesive layer when the first double-sided adhesive tape is stuck around an outer circumference of a polypropylene tube having an outer diameter of φ6mm with an end portion of the first double-sided adhesive tape overlapped by approximately 5 mm is 1 mm or shorter, the polypropylene tube being stored for 24 hours under an environment of a temperature of 50 degrees C. and a humidity of 90%, and
• wherein a storage modulus of the first adhesive layer is in a range lower than 435 kPa at 5 degrees C.

An adhesive tape comprising:

• a substrate film;
• and
• adhesive being applied on a first surface of the substrate film so as to form a first adhesive layer onto which a polyethylene terephthalate film is stuck,
• wherein a number of peeling segments in each of which whole width of the polyethylene terephthalate film of a printed tape peeled-off from the first adhesive layer in a half cut portion when a tape cassette in which a second double-sided adhesive tape formed by adhering a release sheet on a second adhesive layer applied on a second surface, the polyethylene terephthalate film and an ink ribbon are assembled, is stored and kept for two hours under an environment of −5 degrees C., twenty half cuts are continuously provided at an interval of 20 mm while the printed tape is formed by adhering the first adhesive layer of the second double-sided adhesive tape to the polyethylene terephthalate film on which printing is conducted by the ink ribbon, and the number of peeling segments is immediately counted under the environment of −5 degrees C. is 10 or lower, and
• wherein a storage modulus of the first adhesive layer is in a range higher than 90.7 kPa at 5 degrees C.