Package of heat-bent polarizing sheet and injection-molded polarizing lens
AssigneesWintec Co., Ltd., Mitsubishi Gas Chemical Company, Inc., Mgc Filsheet Co., Ltd.
InventorsHideaki Kimura, Masayuki Akaki, Takashi Fujii
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Abstract
A package of a heat-bent polarizing sheet for producing an injection-molded polarizing lens and an injection-molded polarizing lens that uses said sheet is provided. The heat-bent polarizing sheet is cumulatively packaged by a non-adhesive isolation film so as to withstand moisture and then stored or transported and can be used in injection molding without performing preliminary drying as a pretreatment of injection molding and without substantial protective-film removal work.
Claims15
A package of heat-bent polarizing sheets, each heat-bent polarizing sheet having a convex surface side and a concave surface side, in which polarizing sheets heat-bent for injection molding are cumulatively packaged by means of a non-adhesive isolation film so as to withstand moisture, and then stored or transported,
- wherein the package is a three side seal bag made from a continuous peelable film with a width sufficient to put a heat-bent polarizing sheet,
- wherein the convex surface side of each heat-bent polarizing sheet from which a protective film has been separated and removed, is superimposed on the non-adhesive isolation film and then the non-adhesive isolation film with a predetermined width is moved so as to form layers, and is superimposed on the concave surface side of the heat-bent polarizing sheet,
- wherein the heat-bent polarizing sheets are heat-bent polarizing sheets that can be used in injection molding without performing preliminary drying as a pretreatment of injection molding and without protective-film removal work.
Dependencies are inferred from the claim text.