Chemistry:Stone paper
Stone paper products, also referred to as bio-plastic paper, mineral paper or rich mineral paper, are strong and durable paper-like materials manufactured from calcium carbonate bonded with high-density polyethylene (HDPE) resin. They are used in many of the same applications as cellulose-based paper.[1][2]
Properties
Stone paper has a density range of 1.0-1.6g/cm3, which is equal to or slightly higher than that of ordinary paper, and a texture somewhat like that of the outer membrane of a boiled egg. It is not biodegradable or compostable, but is photo-degradable under suitable conditions.[3] It consists of roughly 80% calcium carbonate, 18% HDPE and 2% proprietary coating.[4]
Because it is not made from cellulose fibers, stone paper can have a smoother surface than most traditional products, eliminating the need for additional coating or lamination.[5] The calcium carbonate is mined from quarries or precipitated from limestone.[4] The production of stone paper uses no acid, bleach or optical brighteners.[6] It can be recycled into new stone paper, but only if recycled separately at dedicated civic amenity sites or other recycling/waste processing points.[7][6]
Stone paper products are compatible with inkjet or solid ink printers (e.g., offset, letterpress, gravure, flexographic) but do not respond well to very high temperature laser printers.[8][9]
Sustainability
Comparisons have been made between stone paper and traditional paper for applications like book printing in Europe.[10] If stone paper replaced coated and uncoated graphic printing stock in Europe, it could potentially reduce CO₂ emissions by 25% to 62%, water consumption by 89% to 99.2%, and wood usage by 100% compared to current European consumption, which is mostly of virgin paper.[4][11] The environmental benefits of stone paper relative to recycled paper are much less substantial.[4][12][13]
References
- ↑ "Stone Paper carbonate with a plastic resin as a binder. It is found on the global market, available - [PDF Document"] (in en). https://vdocument.in/stone-paper-carbonate-with-a-plastic-resin-as-a-binder-it-is-found-on-the-global.html.
- ↑ "Journalist with a focus on solutions introduces stone paper" (in en-US). 2021-04-20. https://fox40.com/morning/lifestyle/journalist-with-a-focus-on-solutions-introduces-stone-paper/.
- ↑ Chu, Cancy; Nel, Petronella (2019). "Characterisation and deterioration of mineral papers". Aiccm Bulletin 40: 37–49. doi:10.1080/10344233.2019.1672951. https://www.tandfonline.com/doi/full/10.1080/10344233.2019.1672951.
- ↑ 4.0 4.1 4.2 4.3 Bliss (April 23, 2020). "The Sustainability of Stone Paper Products in European Book Paper" (in en). https://pebbleprinting.com/the-sustainability-of-stone-paper-in-european-book-paper/.
- ↑ "Stone Paper – The Facts Explained" (in en-GB). 2021-02-01. https://www.twosides.info/UK/stone-paper-the-facts-explained/.
- ↑ 6.0 6.1 Palladino, "This Paper Is Made From minerals, But It Isn't Exactly Eco-Friendly", WIRED, 2013
- ↑ "Stone Paper products, Not as Recyclable as You Might Think", Waimakariri District Council, 2018
- ↑ "Paper Made From Minerals". Kampier.com. 2005-11-30. http://www.kampier.com/en/comparison.php.
- ↑ "Stone Paper® Partners With Health Industry Leaders in Mask Production Around the World". https://www.prweb.com/releases/stone_paper_partners_with_health_industry_leaders_in_mask_production_around_the_world/prweb17111300.htm.
- ↑ Jonathan, Tame. "Two Sides Campaign Update, Europe, Q1 2020". https://twosides.info/documents/campaignupdate/Two-Sides-Europe_Campaign-Update_Q1_2020_Online.pdf.
- ↑ "Stone Paper Market Size to Grow by USD 1.83 bn from 2020 to 2025| 17000+ Technavio Research Reports" (in en-US). https://finance.yahoo.com/news/stone-paper-market-size-grow-013000149.html.
- ↑ "Stone Paper Introduces New Repurposing Technology In Mineral Paper" (in en-US). 2020-08-06. https://trendingng.com/stone-paper-introduces-new-repurposing-technology-in-mineral-paper/.
- ↑ "Stone Paper® Introduces New Repurposing Technology to Aid in an Environmentally Restorative Future | ManufacturingTomorrow" (in en-US). https://manufacturingtomorrow.com/content.php?post=15611.
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