BLACK COLOR GLASS CONTAINER

• Main Authors: DOI YOSHIFUMI, HASHIMA HIDEKAZU
• Format: Patent
• Language: English; Japanese
• Published: 03.09.2015
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

PROBLEM TO BE SOLVED: To provide a glass bottle capable of reducing production loss or wasteful consumption of energy by color changing between a brown color glass and black color glass, made by molding a black color soda lime silica glass having a novel composition.SOLUTION: There is provided a glass container made by molding a soda lime silica glass containing iron oxide of 0.2 to 0.4 wt.% in terms of FeOand cobalt oxide of 0.01 to 0.20 wt.% in terms of CoO as a glass composition and having the content of the chromium oxide of less than 0.15 wt.% in terms of CrOand reducibility. 【課題】茶色ガラスと黒色系ガラスとの間の色替えによる生産ロスやエネルギーの無駄な消費を減らすことを可能にする，新規な組成になる黒色系ソーダライムシリカ系ガラスを成型してなるガラスびんの提供。【解決手段】ガラス組成として，酸化鉄をＦｅ２Ｏ３換算で０．２〜０．４重量％，及び酸化コバルトをＣｏＯ換算で０．０１〜０．２０重量％，それぞれ含有し，酸化クロムの含有量がＣｒ２Ｏ３換算で０．１５重量％未満であり，且つ還元性であることを特徴とするソーダライムシリカ系ガラスを成型してなる，ガラス容器。【選択図】図１