Pigment composition comprising plate-shaped aluminum having excellent explosion stability, and method for preparing same

2:

• The pigment composition according to claim 1, wherein the TiO2 has an average diameter of 1-150 m and a thickness of 10-500 nm.

3:

• The pigment composition according to claim 1, wherein the TiO2 has a hollow space inside thereof.

4:

• The pigment composition according to claim 1, wherein the aluminum flake is sequentially coated with a first oxide layer comprising a metal oxide with a refractive index of 1.8 or lower and a second oxide layer comprising a metal oxide with a refractive index of 1.8 or higher.

5:

• The pigment composition according to claim 1, wherein the metal oxide is one or more selected from Fe2O3, SnO2, ZrO2, SiO2, MgO·2, MgO·2O3, K2O·2, MnO and Mg2SiO4.

6:

• The pigment composition according to claim 1, wherein the metal oxide layer coating the TiO2 comprises Fe2O3.

7:

• The pigment composition according to claim 1, wherein the aluminum flake and the TiO2 are mixed at a weight ratio of 1:9 to 7:3.

8:

• The pigment composition according to claim 1, which is used for industrial coating, varnish, automotive coating, powder coating, printing ink or cosmetics.

10:

• The method according to claim 9, wherein the coated plate-shaped TiO2 particles are obtained by coating a metal oxide comprising Fe2O3 on the surface of the plate-shaped TiO2 particles.

11:

• The method according to claim 9, wherein the coated aluminum flake and the coated plate-shaped TiO2 particles are mixed in dry state.