Naoron is a new paper-like material developed with the traditional washi-suki   papermanufacturing technique, by the Japanese paper maker ONAO based in the Ichikawadaimonarea. It is soft to the touch, light and flexible, yet very strong. The material is also superior inwater resistance and durability that does not tear easily.





While maintaining the excellent lightness and distinctive texture of Japanese paper, ONAOdeveloped a new type of Japanese paper that expands the possibilities of paper. That is “Naoron”.
With the flexibility of Japanese paper, it is highly durable and water-resistant that does not tear

これまでデリケートだった紙を、いっそう私たちの身近な素材にしてくれて、いつもそばにいてくれる道具をつくることができる。この優れた素材「ナオロン」を使って身のまわりのものを作り出すシリーズが、「SIWA | 紙和」。

1000年もの歴史のある紙の産地のメーカー大直と、同じ山梨県出身のプロダクトデザイナー、 深澤直人がいっしょにつくりました。
Naoron brings traditional delicate paper far closer to us, in our everyday life. The SIWA series isa line of products for everyday use that are made using   this excellent material.
In collaboration with well-known industrial designer Naoto Fukasawa from Yamanashi, ONAObased in the area with the 1000-year-history of Japanese paper making launched the SIWA brand.





Naoron passed a 5-10 kg load capability test conducted by the QTEC Household Goods Testing Center despite a possible change in the maximum capability depending on how and how long it is used. Even wet items such as umbrellas can be placed inside SIWA bags without worries.
The graph here shows the strength comparisons between kraft paper used in general paper bags and Naoron. Needless to say, general paper becomes very weak and much easier to tear when it gets wet. The graph indicates wetting kraft paper (WET) had a dramatic influence on the strength of paper when it is pulled and torn. (Tested in 2008)
However, the opposite is true for Naoron. If anything, the new material is increased in strength when it gets wet. In the tear test, you can see a significant increase in the strength of Naoron when it is wet.







Naoron is made from wood pulp and polyolefin fibers using the washi-suki paper manufacturing technique. It is drum-dried at a high temperature of 70 to 80 degrees, which allows pulp and the fibers to become interwoven, resulting in durable paper.
Hard Naoron is created from all polyester fibers, of which 60% is made from recycled plastic bottles.
The more both Naorons are used, the softer they become offering you the good fit to the hand. Please relish the distinctive crinkle texture and soft touch of our unique paper.





How to care for the SIWA products
Fill a wash bowl with room temperature water and fully dissolve an adequate amount of detergent. Make sure to completely immerse the SIWA product in the water and hand-wash it by gently pushing it up and down. The paper fuzzes if rubbed hard. Then, gently rinse the product with water once or twice until it has no remaining detergent. Absorb moisture with a towel and completely dry the product at a place out of direct sunlight. Do not use an electric device that uses heating elements, such as a hair dryer or iron.





深澤 直人


プロダクトデザイナー  Product designer 
英国王室芸術協会の称号を授与されるなど受賞歴多数。2018年、「イサム・ノグチ賞」を受賞。日本民藝館館長。多摩美術大学統合デザイン学科教授。21_21 Design Sightディレクター。日本経済新聞社日経優秀製品・サービス賞審査委員。毎日デザイン賞選考委員。LOEWE クラフトプライズ 審査委員。

Naoto Fukasawa is a Japanese product designer.
With his designs devoted to the sublime beauty of form imbued with the power of silence, Fukasawa has designed for a wide range of leading brands worldwide. He also works as a consultant for major international manufacturers. His designs span a wide variety of fields, from precision electronic equipment to furniture and interior spaces. He has garnered international recognition, not only for his designs but also for the essence, thought and expression at the heart of things through design.
Winner of numerous awards, including the 2018 Isamu Noguchi Award. He was accorded the title of Honorary Royal Designer for Industry (Royal Society of Arts, UK). Fukasawa is one of the directors of 21_21 DESIGN SIGHT. He is a professor in the Integrated Design Department at Tama Art University. Since 2012, he is the Director of Nihon Mingei-kan (The Japan Folk Crafts Museum). He is a member of the judging committee for the LOEWE Craft Prize.