Mass-produced glass containers with visible light shielding and methods of making same using recycled post-consumer glass
By using glass containers made with a high percentage of recycled post-consumer glass and visible light shielding additives, the problem of difficulty in achieving visible light shielding with recycled glass in the existing technology is solved, achieving efficient, predictable visible light shielding effects and an environmentally friendly production method.
CN119365430APending Publication Date: 2025-01-24ESTAL PACKAGING SA +1
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Patent Information
- Application Number
- CN202380042069.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-03-23
- Filing Date
- 2023-03-23
- Publication Date
- 2025-01-24
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Figure CN119365430A_ABST
Abstract
A method of manufacturing mass-produced glass containers with visible light shielding using recovered post-consumer glass, the method comprising obtaining successive batches of feedstock for glass manufacturing, each batch comprising a mixture of 80 to 100 wt% of recovered soda-lime-silicon post-consumer glass sheets, the mixture of the consumed glass sheets recovered from sodium-calcium-silicon has a mainly transparent non-uniform color composition; mixing visible light shielding additives at least comprising cobalt oxide, nickel oxide, manganese oxide, chromium oxide and iron oxide into the continuous batches of raw materials; melting continuous batches of raw materials, and automatically manufacturing mass-produced glass containers with the glass thickness of at least 2mm through an automatic blow molding process; a manufactured container having a transmittance of more than 3% or more than 1% for visible light at a wavelength of 450 nm to 680 nm is automatically detected and scrapped.
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