Blow molded articles having a predetermined feature incorporated into the wall provided by variations in the thickness of the wall of the article corresponding to a predetermined pattern etched into the preform from which the article was formed. Also, etched preforms for making blow molded articles and methods for making such preforms and articles.

Method of making a blow molded article from a preform including: a) providing a preform of a thermoplastic material having a plurality of effect structures each having an effect surface having a normal with an orientation, the preform having a body with one or more walls and an opening, wherein at least a portion of the one or more walls of the preform has a three-dimensional pattern of cavities and/or protrusions thereon; and b) blow molding the preform to form a blow molded article, wherein the step of blow molding the preform changes the orientation of the normal of at least some of the effect surfaces of the effect structures to create a visual effect in at least one wall of the blow molded article.

Article having a visual effect created by selectively varying the orientation of effect structures, such as effect pigments, within the walls of the article.

A blow molded article formed from a preform having an exterior surface including at least one etched region. The article includes a body portion including one or more walls surrounding an interior space. A cavity region corresponding to the etched region in the preform is disposed on a portion of the article outer surface and a non-cavity region is disposed adjacent the cavity region. The adjacent cavity and non-cavity regions form one or more visual effects and at least one of the one or more visual effects includes a portion having a 95% Delta E Value of at least 3.0.

To provide a resin container and a method for manufacturing the same with which it is possible to generate more effervescence than hitherto. This resin container is provided with: a resin container main body inside which is formed an accommodating space that is hermetically sealed using a cap; and a textured region which is formed on an inner surface of the container main body and is formed from a rough surface.