A Brief Discussion on Cast Moulding Technology
Moulding is described as the technique of manufacturing by carving liquid or flexible raw substances via a mold or matrix, which has been designed by utilising a pattern or model of the final object. But, casting means an entire manufacturing process in which molten metal is inoculated or discharged into a mold to form an object of a projected shape. Cast moulding technolog y has assisted in producing several life-changing things such as Cast moulding contact lenses . It incorporatess depositing a treatable mixture of polymerizable monomers in a mold cavity created by two mold sections, treating the monomer mixture, and stripping the mold assembly and exteriminating the lens. This invention equips with a technique for cast-moulding hydrogel contact lenses, especially silicone hydrogel contact lenses by including plastic molds of a poly (cycloalkylene-dialkylene terephthalate) copolymer. These plastic molds do not need to be degassed and conserved...