臭氧对不同数码印刷照片和文档的影响

Effects of Ozone on the Various Digital Print Technologies:Photographs and Documents

本研究的目的是探究目前常用的数码印刷材料及印刷品的耐臭氧性。一些数码印刷品已经进入收藏领域，并且数码印刷藏品的数量会越来越多。但在收藏过程中数码印刷品会劣化，收藏者需要知道哪种数码印刷品易受臭氧破坏及被破坏的程度如何，从而采取措施来防止藏品劣化。目前还没有关于各种数码印刷技术、着色剂和纸张类型对印品耐臭氧性影响的综合性研究。除此之外，早期的研究主要集中于臭氧对图形图像的破坏，本研究主要探讨臭氧对文档与图像的影响，同时也粗略比较了数码印品和传统印品的耐臭氧性，以使人们对现代印刷品的收藏风险有一定认识。

The harmful effects of ozone on inkjet photographs have been well documented.This project expands on that research by performing ozone tests on a greater variety of digital prints including colour electrophotographic and dye sublima- tion.The sensitivities of these materials are compared to traditionally printed materials（black - and - white electrophotographic, colour photographic and offset lithographic） to determine if the digital prints require special care practices.In general, the digital prints were more sensitive to ozone than traditional prints.Dye inkjet prints were more sensitive to fade than pigment inkjet,though pigment was not immune.The dye sublimation,colour electrophotographic（dry and liquid toner）, and traditional print systems were relatively resistant to ozone.Text - based documents were evaluated in addition to photographic images,since little work has been done to determine if the type of object（image or text） has an impact on its sensitivity to ozone.The results showed that documents can be more resistant to ozone than photographs even when created using the same printer and inks.It is recommended that cultural heritage institutions not expose their porous - coated,dye - based inkjet photos to open air for extended periods of time.Other inkjet prints should be monitored for early signs of change.