Pressure-sensitive adhesive treatment liquid, and method for treating adhesive

Abstract

A pressure-sensitive adhesive treatment liquid for easily removing various kinds of pressure-sensitive adhesives, and a pressure-sensitive adhesive treatment method by which the various kinds of pressure-sensitive adhesives are easily removed. For example, when a pressure-sensitive adhesive tape including a base material and a pressure-sensitive adhesive is used as a treatment object, there are provided a pressure-sensitive adhesive treatment liquid, which can easily separate the base material and various kinds of pressure-sensitive adhesives from each other, and a pressure-sensitive adhesive treatment method by which the base material and the various kinds of pressure-sensitive adhesives are easily separated. A pressure-sensitive adhesive treatment liquid according to an embodiment of the present invention is a treatment liquid for a pressure-sensitive adhesive, and includes a liquid having a Hansen solubility parameter value of 31 or less, and an alkaline compound. The concentration of the alkaline compound is from 0.001 wt % to 20 wt %.

Dependencies are inferred from the claim text.