19-10-2017 дата публикации
Номер: US20170297950A1
Принадлежит:
Latent colorant material compositions, soda-lime-silica glass compositions, and related methods of manufacturing color-strikable glass containers. The latent colorant material compositions may be introduced into a plurality of base glass compositions having redox numbers in the range of −40 to +20 to produce color-strikable glass compositions and color-strikable glass containers. The latent colorant material compositions introduced into the base glass compositions include a mixture of cuprous oxide (CuO), stannous oxide (SnO), bismuth oxide (BiO), and carbon (C). After formation, the color-strikable glass containers may be heat-treated to strike red or black therein. 1. A method of making glass containers , the method including the steps of:{'sub': 2', '2', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3, 'preparing a soda-lime-silica glass composition including: 60-75 wt. % SiO, 7-15 wt. % NaO, 6-12 wt. % CaO, 0.1-3.0 wt. % AlO, 0.0-2.0 wt. % MgO, 0.0-2.0 wt. % KO, 0.01-0.25 wt. % SO, and at least one colorant selected from the group consisting of: iron oxide (FeO), cobalt oxide (CoO), and chromium oxide (CrO), wherein the molten glass comprises 0.2-0.6 wt. % iron oxide (FeO) when the at least one colorant comprises iron oxide (FeO);'}{'sub': 2', '2', '3, 'mixing a latent colorant material composition into the soda-lime-silica glass composition to produce a color-strikable glass composition including: 0.0875-0.35 wt. % cuprous oxide (CuO), 0.06-0.5 wt. % stannous oxide (SnO), 0.0125-0.05 wt. % bismuth oxide (BiO), and 0.02-0.10 wt. % carbon (C);'}forming glass containers from the color-strikable glass composition;annealing the glass containers; andraising the temperature of a first one of the glass containers above a highest annealing temperature to impart red or black coloration thereto to produce a red or black glass container,wherein a second one of the glass containers is not heated to a temperature above the highest annealing temperature, and wherein ...
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