GCM 210 Lecture Notes - Lecture 2: Anheuser-Busch Brands, Sodium Carbonate, Glass Recycling
16 Mar 2019
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Document Summary
The material on which we print is referred to as a substrate. Other materials used in packaging that we do not directly print on we call simply materials. E. g. a typical beer bottle has a paper label (substrate) and a glass bottle (material) Common examples in packaging includes plastic, glass, metal, foils, paperboards, etc. One of the oldest forms of packaging. Common colours include clear (flint), green, blue, and amber (brown) Beer companies often use amber or green glass because it protects the beer from sunlight that can harm it because of chemical interactions. Clear glass blocks 30% of uv rays, brown or green glass blocks 90% of uv rays. Corona gets away with using clear glass because they use secondary packaging (a box) to block the sunlight. Silica sand, soda ash and limestone as well as cullet (recycled glass) These are melted at temperatures over 1000 degrees celsius. Gob : the amount of glass needed to make a bottle.
