Methods for forming delamination resistant glass containers

A method for forming a glass container, the method comprising:

• forming a glass container comprising a sidewall at least partially enclosing an interior volume, at least a portion of an interior surface of the sidewall having an interior surface layer with a persistent layer heterogeneity relative to a midpoint of the sidewall;
• and
• etching the interior surface of the sidewall with an etchant to remove the interior surface layer such that a modified interior surface of the sidewall has an interior region extending from about 10 nm below the modified interior surface into a thickness of the sidewall, the interior region having a persistent layer homogeneity relative to the midpoint of the sidewall such that the modified interior surface is resistant to delamination.

A method of forming a glass container, the method comprising:

• forming a glass container comprising a sidewall at least partially enclosing an interior volume such that at least a portion of an interior surface of the sidewall has an interior surface layer wherein an extrema in a layer concentration of each constituent component in the interior surface layer is less than about 80% or greater than about 120% of a bulk concentration of a same constituent component at a midpoint of the sidewall when the glass container is in an as-formed condition;
• and
• removing the interior surface layer from the interior surface of the sidewall such that a modified interior surface of the sidewall has an interior region extending into a thickness of the sidewall wherein an extrema in a layer concentration of each constituent component in the interior region is greater than or equal to about 92% and less than or equal to about 108% of a bulk concentration of a same constituent component at a midpoint of the thickness of the sidewall after the interior surface layer has been removed.