Blow molded multilayer article with color gradient

A blow molded multilayer article comprising:

• a hollow body extending from a base to a neck, the neck extending from the hollow body to an orifice, wherein the hollow body and the neck are defined by a wall comprising an inner surface and an outer surface;
• wherein at least a first portion of the wall comprises at least five layers comprising:
• at least two A-layers forming the outer surface and the inner surface of the wall, at least a B-layer located between the A-layers, wherein the A-layers and B-layer comprise a thermoplastic resin, a first interface layer comprising a region wherein the thermoplastic resin of the A-layer forming the outer surface and the thermoplastic resin forming the B-layer are interpenetrated, and a second interface layer comprising a region wherein the thermoplastic resin of the A-layer forming the inner surface and the thermoplastic resin forming the B-layer are interpenetrated;
• wherein the A-layers are transparent and comprise a colored dye or pigment;
• wherein the B-layer comprises an effect pigment and/or an opacifying pigment;
• wherein the thickness of the A-layer forming the outer surface varies from the neck to the base;
• wherein the outer surface comprises an axial color gradient extending along an entire length of the article, wherein the axial color gradient is formed by constituents from the A-layer forming the outer surface.