Mass Deacidification Treatments of Acidic Bamboo Paper

DOI Web Site Web Site 11 References
  • Win Khine Khine
    United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8- Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
  • Okayama Takayuki
    United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8- Saiwai-cho, Fuchu, Tokyo 183-8509, Japan

Search this article

Description

Suppression of the deterioration of acidic bamboo paper by the Bookkeeper process (BK) and the dry　ammonia ethylene oxide process (DAE) was investigated. These deacidification processes reduce the acidity of both　acidic bamboo and hardwood papers to pH 8, which is comparable to acid-free paper. Deacidified bamboo and　hardwood papers had higher pHs than untreated papers after accelerated aging for one week at 100 °Cin a sealed tube.　Both deacidification processes preserved the mechanical properties (e.g., folding endurance and zero-span tensile　strength) of bamboo papers after one week of sealed tube aging. In contrast, bamboo papers deacidified by BK and　DAE processes exhibited a significance loss in tearing strength after one week of tube aging, compared with deacidified　hardwood papers. The reduction in the tearing strength of deacidified bamboo papers depended considerably on the　reduction in the degree of polymerization during sealed tube aging. Due to the rapid reduction rate of degree of　polymerization during sealed tube aging for one week of bamboo papers deacidified by DAE process, such paper　exhibited appreciably higher degradation rates than bamboo papers deacidified by the BK process.

Journal

  • Sen'i Gakkaishi

    Sen'i Gakkaishi 68 (6), 143-148, 2012

    The Society of Fiber Science and Technology, Japan

References(11)*help

See more

Details 詳細情報について

Report a problem

Back to top