HERE'S WHY WE ARE EXCITED ABOUT ROCKSTOCK
Rockstock is the registered trade-name of a ground-breaking high quality, coated paper with outstanding environmental values that prints extremely well using standard inks.(No special inks are required.)
It can be used in most situations where conventional and synthetic paper is used and offers exceptional printing, water proofing and tear resistant qualities. Rockstock claims to be the world's most environmentally friendly paper.
Sometimes confused with synthetic paper, Rockstock is neither synthetic nor pulp or fibre based and is termed "Rich Mineral Paper". Rockstock has qualities of both pulp and synthetic papers, but more importantly it is much more environmentaly friendly than either of the two. The printing qualities and exclusive feel make Rockstock a paper product not seen the likes of previously.
Due to its absorbency attributes, it has superior handling and printing qualities.
It is also water, mist, grease, anti-moth and insect proof*, freezer grade.
Certain products can be heat sealed.
Being foodgrade, Rockstock STN thermoforming boards are suitable for thermoforming food trays, containers and other packing items.(400-700micron.
Rockstock RPD will aslo"in-mould" label with great printed results.
Rockstock has unusual physical strength and high fold durability.
In addition of up to 81% ground-up mineral waste or CaC03, Rockstock contains a small amount of a non toxic photo-degradable PE resin.
Available in weights ranging from 20 microns through 700microns in a wide variety of product options.
100/120/140/160/180/200 micron RP paper range
200/250/300/350/400 micron RB Board range
20-40 micron Supermarket singlet bags. Rockbag is a range of Singlet bags, bin liners, Trash sacks and Carry bags made from different versions of stone paper.
50/80 micron SP range
400/500/600/700 micron STN Thermoform range.
Rocktak is a self ahesive version of RPD stone paper.
Rocktherm DT and Rocktak DT are Direct Thermal versions of Rockstock.
1(*Note: If used for acidic foods Rockstock products with a eg. PE film barrier may be advised).
2(*Note: moth and insect proof by nature of the fact that insects, moths and organisms will not eat or degrade the stone product, rather than some deterrent characteristic or chemical. Hence it is not biodegradable but photo-degradable. To be biodegradable, insects or organisms need to be able to eat/break down the product. Instead the suns strong UV will after 1 year for paper and 3 years for board in full sun, photodgrade Rockstock back to stone powder ). This is a much cleaner process rather than organisms consuming doubtful substances in the food chain.
3(Note: Not suitable for Laser Printers or Photocopiers where extremely high heat is generated as this may distort the sheet)
Rich Mineral Paper (Rockstock) is neither pulp nor synthetic made paper. Rich Mineral Paper is a combination largely (80.9%) of mineral powder (Calcium Carbonate) with a small amount (18%approx) of a non-toxic, recyclable, compostable, photodegradable resin (PE) to create an extremely environmentally friendly paper. Boards and other rockstock Products may have different proportions of Stone powder and resin to achieve different performance.
Due to this unique make up, Rich Mineral Paper (Rockstock) is made with minimal consequences to the environment. Not only is Rich Mineral Paper (Rockstock) a “Tree-Free” product, but also does not require water or use of fossil fuel as part of production. This break through product does not require bleach, or use strong acid to lighten or break down the components used to produce the Paper.
As a result the mills have been able to achieve something that no pulp based paper mills have been able to achieve. Rich Mineral Stone Paper mills create no air pollution, no toxic run off and no water pollution. No acid, base or bleach. No Halogens or phalates.
Most of all, it is so rewarding that Rich Mineral Paper does not require the harvesting of trees to produce the many varied products!
Calcium carbonate is an exceptional compound. The chemical formula CaCO3 stands for a raw material that exists everywhere in nature, dissolved in rivers and oceans, melted as “cold” carbonatite-lava and solidified as a mineral, dripstone or as parent material for whole mountain ranges.
Plants and animals need calcium carbonate to form their skeletons and shells, and even modern mankind could hardly imagine life without calcium carbonate. Almost every product of our day-to-day life contains calcium carbonate or comes into contact with it while being produced.
Calcium carbonate accounts for more than 4% of the Earth’s crust. As a result, the three calcium carbonate minerals - calcite, aragonite and vaterite - are among the most important rock-forming minerals. And rocks are not the only calcium carbonate deposits in nature. Almost all stretches of water and countless plants and animals contain huge amounts of calcium carbonate as well. These natural resources are linked by the calcium carbonate cycle.
Plants and animals absorb calcium carbonate in water, where it exists in most cases dissolved in the form of calcium hydrogen carbonate Ca(HCO3)2, and use it to build up their skeletons and shells. After their death, mussels, coccoliths, algae and corals form sedimentary deposits on sea-beds. And the rock forming process is set in motion.
The first stage is the sedimentation process, from which chalk and limestone originate. Chalk is a poorly compacted sedimentary calcium carbonate rock, whose diagenesis is incomplete.
A completed sedimentation process results in the formation of limestone. If the sedimentation process takes place in magnesium containing water, a dolomitization may result. Part of the calcium ions in the crystal lattice are replaced by magnesium ions, leading to the formation of dolomite
Marble is a metamorphic rock resulting from the recrystallisation of limestone under high pressure and temperature. Whether chalk, limestone, dolomite or marble, all carbonate rock is subject to erosion. It dissolves under the influence of wind, temperature and water, and the cycle is ready to start anew.
Calcium carbonate rock occurs throughout the world and is readily available. This explains why it has been among the most widely used raw materials for more than 5,000 years. The Ancient Egyptians built their pyramids out of limestone. However, the mining of industrial minerals is possible only in a few deposits world-wide. Extraction is only worthwhile if the purity, whiteness, thickness and homogeneity of the stone is appropriate, and even then intensive treatment is necessary to process top quality natural calcium carbonates (ground calcium carbonate (GCC)). Precipitated calcium carbonate (PCC) is a synthetic calcium carbonate, which in most cases is produced industrially by means of recarbonization.
Information about Calcium Carbonate from: www.omya.com
What are Coccolithophores?
What are Coccolithphores? Tiny coccolithophores have had a big impact on the planet over time. Though they are single-celled, these photosynthesising organisms are enclosed in a mosaic, or cage, of microscopic plates that make many very beautiful to look at. The plates are made of calcium carbonate, which the coccoliths pull from the surrounding water. As these small organisms live and die in their trillions, they bequeath their tiny plates to the ocean floor where they form rocks such as chalk and eventually marble. Over geological time, coccoliths have removed significant amounts of the greenhouse gas carbon dioxide from the atmosphere, helping to keep Earth cool as the sun grew hotter.