Colored resin water distribution pipe

摘要

A colored resin water distribution pipe formed of a colored resin composition which comprises a polyolefin resin as a main component and a blue fine powder pigment of a composite oxide which comprises two or more metal oxides and has a spinel crystal structure and a BET specific surface area of about 30 m<2>/g or more. The blue fine powder pigment is covered with an inorganic compound. The blue fine powder pigment is preferably treated mechanochemically by grinding. The colored resin water distribution pipe exhibits excellent resistance to water containing chlorine as a bactericide so that discoloration of the coloring component and formation of blisters on the inner face of the pipe by water containing chlorine are prevented.