Pressure-Sensitive Adhesive for Pressure-Sensitive Adhesive Tape, Tape Cassette, and Tape Printer

摘要

There is provided a double-sided pressure-sensitive adhesive tape which includes a first pressure-sensitive adhesive layer formed by using any of different types of adhesive samples. Thereby the first pressure-sensitive adhesive layer is adjusted so as to satisfy conditions that, slow peel strength when a printing tape made of a PET film is peeled off from the substrate film of the double-sided pressure-sensitive adhesive tape by 5 mm at peel rate of 0.5 mm/minute is 0.45 N/20 mm or higher and storage modulus of the adhesive layer is in a range from 90.7 kPa to 435 kPa. By improving adhesiveness to the printing tape under environmental temperature from a low temperature to a normal temperature, the double-sided pressure-sensitive adhesive layer renders the printing tape less apt to peel off.

主权项

1. Adhesive for an adhesive tape, the adhesive being applied on a first surface of a substrate film of the adhesive tape so as to form a first adhesive layer which is stuck onto a polyethylene terephthalate film,
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 φ6 mm 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.