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67:. In this technique, the mold cavity was evacuated and vinyl was introduced in micro-particle form. The particles were then flash-fused instantaneously at a high temperature forming a coherent solid. Cook called this disc manufacturing technology
71:. A small pressing plant in Hollywood also employed a similar system which they maintained fused the particles more evenly throughout the disc thickness calling their product
51:) are placed in a heated mold cavity. Two stampers are used, one for each of side of the disc. The record press closes under a pressure of about 150 tons. The process of
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and greater resistance to deformation from stylus tip inertia than convention pressure molded vinyl discs.
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In the mid-1960s, Emory Cook developed a system of record forming wherein the mold pressure was replaced by a
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forces the hot vinyl to fill the grooves in the stampers, and take the form of the finished record.
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stampers which are negative impressions of a master disc. Labels and a pre-heated vinyl
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Cutaway shot of one side of a 7" record mould with stamper fitted.
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121:White, Glenn; Louie, Gary J. (2005).
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