An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos

Curling disease in long historical photos significantly affects the presentation of cultural heritage information. However, people lack attention to the formation process and microstructural changes of photo curling. In this article, a long historical photo (1912–1949 AD) collected by the Second His...

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Autores principales:	Jiaojiao Liu, Yuhu Li, Daodao Hu, Xiaolian Chao, Yajun Zhou, Juanli Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	long historical photos curling gelatin paper base layer preservation Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/ff61c7f3bf9b4b749a314f95a44ef052
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spelling	oai:doaj.org-article:ff61c7f3bf9b4b749a314f95a44ef0522021-11-25T18:48:03ZAn Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos10.3390/polym132238942073-4360https://doaj.org/article/ff61c7f3bf9b4b749a314f95a44ef0522021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3894https://doaj.org/toc/2073-4360Curling disease in long historical photos significantly affects the presentation of cultural heritage information. However, people lack attention to the formation process and microstructural changes of photo curling. In this article, a long historical photo (1912–1949 AD) collected by the Second Historical Archives of China was taken as the research object, and the formation process and cause of the curling were further explored. Firstly, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray energy disperse spectrometer (EDS), and other instruments were used to analyze the material composition of the long historical photo. It was found that the photographic paper was made of gelatin, barium sulfate, and plant fiber layers. Then, the effects of hygrothermal environments on curling and contraction in the gelatin layer and simulated photographic paper were explored. Meanwhile, the formation process and main influence factors of the curling were preliminarily revealed. The morphological analysis by SEM was carried out to identify the inner correlation between the microstructure and curling of photos. Finally, the possible formation cause of photo curling was analyzed. This study provides a scientific basis and experimental data for the preservation and restoration of long historical photos based on gelatin.Jiaojiao LiuYuhu LiDaodao HuXiaolian ChaoYajun ZhouJuanli WangMDPI AGarticlelong historical photoscurlinggelatinpaper base layerpreservationOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3894, p 3894 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	long historical photos curling gelatin paper base layer preservation Organic chemistry QD241-441
spellingShingle	long historical photos curling gelatin paper base layer preservation Organic chemistry QD241-441 Jiaojiao Liu Yuhu Li Daodao Hu Xiaolian Chao Yajun Zhou Juanli Wang An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
description	Curling disease in long historical photos significantly affects the presentation of cultural heritage information. However, people lack attention to the formation process and microstructural changes of photo curling. In this article, a long historical photo (1912–1949 AD) collected by the Second Historical Archives of China was taken as the research object, and the formation process and cause of the curling were further explored. Firstly, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), X-ray energy disperse spectrometer (EDS), and other instruments were used to analyze the material composition of the long historical photo. It was found that the photographic paper was made of gelatin, barium sulfate, and plant fiber layers. Then, the effects of hygrothermal environments on curling and contraction in the gelatin layer and simulated photographic paper were explored. Meanwhile, the formation process and main influence factors of the curling were preliminarily revealed. The morphological analysis by SEM was carried out to identify the inner correlation between the microstructure and curling of photos. Finally, the possible formation cause of photo curling was analyzed. This study provides a scientific basis and experimental data for the preservation and restoration of long historical photos based on gelatin.
format	article
author	Jiaojiao Liu Yuhu Li Daodao Hu Xiaolian Chao Yajun Zhou Juanli Wang
author_facet	Jiaojiao Liu Yuhu Li Daodao Hu Xiaolian Chao Yajun Zhou Juanli Wang
author_sort	Jiaojiao Liu
title	An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
title_short	An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
title_full	An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
title_fullStr	An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
title_full_unstemmed	An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos
title_sort	essential role of gelatin in the formation process of curling in long historical photos
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ff61c7f3bf9b4b749a314f95a44ef052
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An Essential Role of Gelatin in the Formation Process of Curling in Long Historical Photos

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