Hand-inked photographs produced by a bichromate process developed by G.E.H. Rawlins ca. 1904. A sheet of paper is coated with a thin layer of gelatin and sensitized with bichromate, dried in the dark and exposed under a negative. Exposure hardens the gelatin in the shadow areas and partially in mid-tones. Soaking in water subsequently removes sensitizer and causes the mid-tone and highlight areas to absorb moisture. Oil based inks are repelled in these areas, and remain to a greater or lesser degree in others. The plate is then allowed to dry or is transfer-printed to another sheet, then re-inked for more prints.
藝術與建築詞典根目錄 ....
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顏料印相................................................
油墨印相
[油墨印相 oil prints(編號300138319)]。《藝術與建築索引典》。http://aat.teldap.tw/AATFullDisplay/300138319(2024/11/22瀏覽)。