A stone paper notebook, also known as a rock paper notebook, is a type of notebook that uses a unique type of paper made from calcium carbonate or limestone instead of wood pulp. This paper is also sometimes referred to as "tree-free" paper since it does not require trees to be cut down for its production.
Stone paper is created by grinding up limestone or other rock formations into a fine powder and then combining it with a small amount of non-toxic resin to create a durable and water-resistant material. The resulting paper is waterproof, tear-resistant, and can be recycled multiple times.
Stone paper notebooks have gained popularity in recent years as a more eco-friendly alternative to traditional paper notebooks. They are often marketed as more sustainable, as they require less water and energy to produce compared to traditional paper products. They are also popular among outdoor enthusiasts, as they are durable and can withstand exposure to the elements.
Degree | Thickness | Density |
RPN | 40~80 micron meter | 1.00g/cm3 +/-5% |
RPD | 100~200 micron meter | 1.20g/cm3 +/-5% |
RBD | 200~400 micron meter | 1.50g/cm3 +/-5% |
STN | 300~800 micron meter | 1.601.50g/cm3 +/-5% |