The invention claimed is:
1. A cleaning agent composition for use in an adhesion process for applying an adhesive to a surface of a first member subjected to a dry treatment without a primer, and adhering a second member to the surface of the first member, the cleaning agent composition comprising a compound (A) having a (meth)acryloyl group, a liquid (B) having a boiling point of not higher than 200° C., and a photopolymerization initiator (C), wherein:
a content of the compound (A) is from 0.5 to 8 parts by mass relative to 100 parts by mass of the liquid (B), and
the compound (A) having a (meth)acryloyl group is at least one selected from the group consisting of a (meth)acrylamide compound (a1), a compound (a2) having two or more (meth)acryloyl groups and a divalent aliphatic hydrocarbon group having six or more carbon atoms in a molecule, and a compound (a3) having a (meth)acryloyl group, an isocyanate group, and a divalent aliphatic hydrocarbon group having two or more carbon atoms in a molecule.
2. The cleaning agent composition according to claim 1 , further comprising a modified olefin compound (D).
3. The cleaning agent composition according to claim 2 , wherein the modified olefin compound (D) is an olefin compound modified by at least one selected from the group consisting of acid modification, chlorination modification, and acrylic modification.
4. The cleaning agent composition according to claim 1 , wherein the dry treatment is at least one selected from the group consisting of a corona treatment, a plasma treatment, a flame treatment, ITRO treatment, an UV treatment, and an excimer treatment, and the adhesive is at least one selected from the group consisting of an urethane-based adhesive, an epoxy-based adhesive, a modified silicone-based adhesive, and an acrylic adhesive.
5. The cleaning agent composition according to claim 2 , wherein the dry treatment is at least one selected from the group consisting of a corona treatment, a plasma treatment, a flame treatment, ITRO treatment, an UV treatment, and an excimer treatment, and the adhesive is at least one selected from the group consisting of an urethane-based adhesive, an epoxy-based adhesive, a modified silicone-based adhesive, and an acrylic adhesive.
6. The cleaning agent composition according to claim 3 , wherein the dry treatment is at least one selected from the group consisting of a corona treatment, a plasma treatment, a flame treatment, ITRO treatment, an UV treatment, and an excimer treatment, and the adhesive is at least one selected from the group consisting of an urethane-based adhesive, an epoxy-based adhesive, a modified silicone-based adhesive, and an acrylic adhesive.