A binder agent composition comprising: one or more kinds of polymers containing poly acrylic acid; a bivalent to decavalent alcohol; and water, characterized in that any one or more kinds of polymers among the polymers are crosslinked by a crosslinking agent selected from compounds described in the following general formulae to and a polymer described in the following general formula; in the formula, a represents an integer of 1 to 6, in the formula, R 25 and R 26 each independently represent a hydrogen atom or a methyl group, and R 21 represents an alkylene group having 1 to 20 carbon atoms, a group represented by the following general formula in the formula, R 22 represents an alkylene group having 1 to 6 carbon atoms, and b represents an integer of 1 to 6, or a group represented by the following general formula in the formula, R 23 and R 24 each independently represent an alkylene group having 1 to 6 carbon atoms, and c represents an integer of 1 to 22, in the formula, R 27 to R 33 each independently represent an alkylene group having 1 to 3 carbon atoms, in the formula, R 34 to R 37 each independently represent an alkylene group having 1 to 6 carbon atoms, d represents an integer of 1 to 6, e represents an integer of 0 to 6, and f and g each independently represent an integer of 0 or 1, in the formula, R 38 to R 45 each independently represent a hydrogen atom, a vinyl group, or a vinyl ketone group, and at least two or more groups among R 38 to R 45 are vinyl groups or vinyl ketone groups, in the formula, R 46 to R 48 each independently represent an alkylene group having 1 to 6 carbon atoms, in the formula, a ring Ar 1 represents a benzene ring or a naphthalene ring, R 49 represents an alkylene group having 1 to 6 carbon atoms, and h represents an integer of 2 to 4, in the formula, a ring Ar 2 and a ring Ar 3 each independently represent a benzene ring or a naphthalene ring, and R 50 represents an alkylene group having 1 to 6 carbon atoms, in the formula, a ring Ar 4 represents a benzene ring or a naphthalene ring, in the formula, i represents an integer of 0 to 6, in the formula, R 51 represents an alkylene group having 1 to 6 carbon atoms, in the formula, R 52 represents an alkylene group having 1 to 6 carbon atoms that has a substituent or is unsubstituted, an arylene group having 6 to 10 carbon atoms that has a substituent or is unsubstituted, a group represented by the following general formula in the formula, R 53 represents an alkyl group having 1 to 6 carbon atoms, R 54 represents an alkylene group having 1 to 6 carbon atoms, a ring Ar 5 represents a benzene ring or a naphthalene ring, and j represents an integer of 0 to 4, or a group represented by the following general formula in the formula, R 55 represents an alkylene group having 1 to 6 carbon atoms, and R 53, R 54, a ring Ar 5, and j are the same as R 53, R 54, the ring Ar 5, and j described above, R 56 -N=C=N-R 57 in the formula, R 56 and R 57 each independently represent an alkyl group having 1 to 6 carbon atoms that has a substituent or is unsubstituted, an aryl group having 6 to 10 carbon atoms that has a substituent or is unsubstituted, or a group represented by the following general formula in the formula, R 58 represents an alkyl group having 1 to 6 carbon atoms, R 59 represents an alkylene group having 1 to 6 carbon atoms, a ring Ar 6 represents a benzene ring or a naphthalene ring, and k represents an integer of 0 to 5, in the formula, R 60 represents an alkylene group having 1 to 6 carbon atoms that has a substituent or is unsubstituted, an arylene group having 6 to 10 carbon atoms that has a substituent or is unsubstituted, a group represented by the following general formula or in the formulae, R 61 represents an alkyl group having 1 to 6 carbon atoms, R 62 represents an alkylene group having 1 to 6 carbon atoms, a ring Ar 7 represents a benzene ring or a naphthalene ring, and p represents an integer of 0 to 4, or a group represented by the following general formula in the formula, R 63 represents an alkylene group having 1 to 6 carbon atoms, and R 61, R 62, a ring Ar 7, and p are the same as R 61, R 62, the ring Ar 7, and p described above, and m represents an integer of 10 to 10,000. one or more kinds of polymers containing poly acrylic acid; a bivalent to decavalent alcohol; and water,