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New, Non-Flammable Xuan Paper Safeguards Chinese Calligraphy

Pub Date:19-01-17 08:39 Source:China Daily

Today's Chinese artists have the opportunity to preserve their works much longer than the masters who painted hundreds of years ago.

Chinese researchers have developed a non-flammable version of Xuan paper that has high thermal stability, according to the Chinese Academy of Sciences.

Xuan paper, a type of handmade paper, was originally produced in ancient China and used for Chinese calligraphy and paintings. The procedure for making Xuan paper was listed as a world intangible cultural heritage by UNESCO in 2009.

The raw materials needed to produce Xuan paper are found in Jingxian county, east China's Anhui province. As of late, those materials are in short supply.

The traditional method of making Xuan paper by hand involves more than 100 steps and takes nearly two years. It yields a low output, yet the costs involved are high.

Xuan paper made with organic materials often suffers from degradation, yellowing and deterioration during the long-term natural aging process. The worst problem for traditional Xuan paper is its high flammability.

Researchers from the Shanghai Institute of Ceramics at CAS developed a new kind of highly flexible Xuan paper with excellent fire resistance, long durability, high whiteness and excellent anti-mildew qualities benefiting from its totally inorganic origin, which is far superior to that of traditional Xuan paper.

The inorganic analogous Xuan paper had no obvious signs of deterioration after a simulated aging process of 3,000 years.

Its whiteness remained at 86.7 percent after the simulation, while the traditional Xuan paper had less than 42.5 percent of its original whiteness.

The production process of the newly developed Xuan paper takes only two to three days to make instead of the usual two years for traditional Xuan paper.

The nonflammability and high thermal stability of the new Xuan paper can safeguard China's precious calligraphy and paintings, documents, books and archives for a very long period of time.



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