Blow Molding (also: Blow moulding) and the molding process of polymers is one of the pillars of industrial manufacturing. In the cosmetic packaging industry, blow molding is widely used for manufacturing cosmetic bottles , such as foam pump bottle , airless bottle , mist sprayer pump , etc. Blow molding allows industry players to produce parts and plasti c cos metic containers fast and cheap in high quantities. But how does this process work ? This article will give you all the answers in a nutshell. What is Blow Molding? Blow molding started in the glass blowing industry where a liquid glass pulp is enclosed in a two-piece mold and then expanded by blowing into to the pulp. This causes the glass retains the contour of the mold and form a hollow area on the inside. With the invention of polymeric thermoplastics, this technology started to rev up in the plastic bottle industry. Starting in 1977, the number of plastic containers rose from zero to 10 billion ...