长期保存底片的新途径

New Ways for Long-Period Presevation of Photonegatives

本文综述了有关照相底片老化和长期保存的研究,经世界一些著名的研究机构研究论定．黑白卤化银材料是档案保存最安全、最没有风险、最便宜、最保真的一种形像媒体，可在适宜的环境条件下长期保存．本文扼要阐述了影响底片老化的主要物理、化学和生物因素，并提出了底片长期保存的具体措施。

This article presents a review on research works carried out on the ageing and preservation of photonegatives. It was concluded by technical research done by world major renowed laboratories that black-and-white AgX materials are the most safe, cheap,reliable and longstanding veritable medium for archives preservation and can endure long-period storage under appropriate environment conditions. This paper outlines main physical, chemical and biological factors affecting the ageing of photonegatives and offers detailed measures for their long-peried preservation.