Material Features
All products are made of proprietary Naoron material.Although it has a unique texture of paper, it is tear resistant and water resistant.
SIWA products are made of 2 different naoron materials depending on the product.
Soft naoron.
Soft Naoron is a paper developed by our company using wood pulp and polyolefin fiber and using a washi infuser method.Features a soft, supple paper material that is resistant to tearing, and has excellent water resistance.
Hardnaoron.
Hard Naoron is a paper made using a Washi Infuser method using recycled polyester fiber from used plastic bottles.Although it has a unique texture of paper, it is tear resistant and water resistant.