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Stonepaper – material & recycling

1. How is stone paper made?

The stone paper production process is an invention from Taiwan. Over the past 20 years, a technology was developed to produce paper with less impact on the World than traditional pulp paper. The stone paper now has a Cradle to Cradle silver certificate and the technology is spreading rapidly around the World. We would like to share the basic process of making stone paper.

The stones used for the production of stone paper are calcium carbonate, and come from mines. The color of the stones, is the color that the paper will take on. Therefore, mainly white/yellow-white stones are used.

These stones are ground to dust, then mixed with a little (partly recycled) HDPE. This component functions as ‘glue’ for the stone minerals. Due to this combination of resources, recycling of the material becomes infinite. The Calcium Carbonate minerals don’t lose their form, as opposed to pulp paper fibers that do break after recycling and end up as waste in the end.

The heated mix of HDPE and dust pellets, become a texture comparable to a balloon. This mixture can be stretched out very high, and thus as thin as wished for. At the same time the material cools down and can then be rolled up into paper rolls.

2. Why is stone paper more sustainable than pulp paper?

In this chart, you can see the difference in resource usage in production for both stonepaper and virgin – as well as recycled pulp paper.

3. Why did stone paper receive a cradle to cradle certificate?

Stone paper is cradle to cradle certified by the official cradle to cradle Institute. The paper has a silver cradle to cradle label. On the right you can see what valuation was given to different aspects of the paper production.

Cradle to cradle literally means there is no ‘grave’ for the product after it has been used. The material does not need to leave any waste behind after usage, but can be properly recycled.

4. How to recycle stone paper?

Stone paper is made from original stonep powder and can thus be recycled easily.

In theory, stonepaper is infinitely recyclable. If there were a stonepaper recycling stream, we would be able to fully re-use all stonepaper. However, in practice this still works a bit different, mainly due to a lack of sufficient volume for an own recycling stream.

We advise you to throw away stone paper, with plastic recycling (stream 2). This way, the paper can be fully incorporated in an existing recycling stream. The Calcium Carbonate (the stone that is used) is already a common additive to some plastic products and will thus be properly recycled.

Stonepaper will be recognized as a non-pulppaper product in most recycling streams that we know of. It will thus be filtered out with other products that are not recyclable in a paper recycling stream. Then, it will be processed according to the facilities rules. Sometimes this means that it will be burned, or that it will be sorted and used in proper plastic recycling. The stonepaper will in fact be recognized as a plastic-type product.

Just to make sure – we recommend you recycle stone paper with plastic recycling.

5. Will the HDPE in stone paper be replaced with bioplastic?

A lot of research and development is done to continuously improve the sustainability of the stonepaper and its production process.

Tests are being done with bioplastic replacing the HDPE component of the stonepaper. This will most likely be a bioplastic variety that is not made from a food resource, but for example from non-consumable weeds.

At this moment, the HDPE component is made from partly recycled plastic.

Shenzhen Shizhineng New Paper and Plastic Application Research and Development Co., Ltd focuses on eco-friendly and low carbon emission material. We are professional in producing biodegradable and degradable packaging and printing materials.

We are a leading manufacturer which owns the stone paper making industry chain in China. For years, we have been dedicated to accelerate eco-friendly technology and its products with one goal: to protect the most valuable carbon storing resources—Trees and Forests.

With our first-class customer service, high-tech means and market-oriented mechanism, we believe we will transform and upgrade the paper industry model and bring back green world.

"Choose our stone paper, make the global clean and green." Reasonable price, high quality products, considerate service, which are the goals we chase after. We eager to be a long-term strategic partner with you.

The Company Is a Leading Supplier Of stone paper and compostable poly products, specializing in stone paper notebooks, stone paper packaging products, compostable ply bags. All of our products are eco-friendly and low carbow emission. We have stable and reliable quality, most of our products conform to the requirements of REACH、ROHS、FDA. It maily sold to publishing company stationery and packaging company. Because of its unique characteristics, it is welcome in USA,Canada,Uk,Brazil,Germany, Russia, Australia, Greece, Netherlands, Ireland ,Austria, Iran ,Turkey, Sweden, Rumania,Bulgaria,Poland, And So On.

At the same time, we look for compostable poly to replace the normal plastic. It is a range of packaging made from recycled Ocean Bound Plastic pollution rescued from coastal communities throughout Southeast Asia.

KEEPING PLASTIC POLLUTION OUT OF OUR OCEANS​
An estimated 5-13 million tonnes of plastic enters our oceans every year and this is expected to triple by 2040.
Over 70% of that plastic enters oceans via land and over 80% of that comes from Asia. That's why we focus our collection efforts in Southeast Asian coastal communities.

A SOCIAL SOLUTION TO PLASTIC POLLUTION
By working closely and responsibly with communities in these areas, we can clean up the environment AND have positive social impact.
When we commit to purchasing the plastic pollution they collect, we provide a consistent source of income and help raise their standards of living.​

ALLEVIATING POVERTY​
Pollution and poverty are often inextricably linked – and waste management infrastructure is often non-existent in these communities.
Plastic rubbish is usually littered, burnt or buried (in piles for livestock and dogs to ferret in). If instead we can provide an economic incentive for people to pick it up and collect it, we can stop it from entering the ocean.

SUPER LOW CARBON FOOTPRINT​
Independent Life Cycle Analysis has shown stone paper & compostable poly mailers to be the lowest carbon form of packaging currently commercially available.
They have a CO₂ footprint 75% less than that of a traditional plastic mailer and 30% less even than 100%