ABSTRACT To preserve archive films of which the base material is composed of cellulose acetate, we carried out screening tests on various reagents. We selected sodium carbonate and sodium polyacrylate as an acetic acid gas removing agent and a dehumidification agent, respectively. The performance of sodium carbonate per unit mass in the removal of acetic acid gas was superior to those of commercial products. The presence of sodium carbonate suppressed the increase in concentration of acetic acid gas for several months in film preservation containers. The neutralization of sodium carbonate with acetic acid gas was evaluated quantitatively. Sodium polyacrylate controlled relative humidity at around 40%RH in film preservation containers, and it was effective for film preservation. The dehumidifying performance of sodium polyacrylate compared favourably with those of commercial products. Thus, the materials tested in this study are found to be useful to avoid vinegar syndrome in cellulose acetate-based films.

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碳酸钠和聚丙烯酸钠在预防醋综合征中的应用

摘要 为了保存以醋酸纤维素为基材的档案胶片，我们对各种试剂进行了筛选测试。我们分别选择碳酸钠和聚丙烯酸钠作为醋酸气体去除剂和除湿剂。单位质量碳酸钠去除醋酸气体的性能优于市售产品。碳酸钠的存在抑制了胶片保存容器中醋酸气体浓度的增加数月。用醋酸气对碳酸钠的中和进行了定量评价。聚丙烯酸钠将薄膜保鲜容器内的相对湿度控制在40%RH左右，对薄膜保鲜效果显着。聚丙烯酸钠的除湿性能优于市售产品。因此，发现本研究中测试的材料可用于避免基于醋酸纤维素的薄膜中的醋综合征。