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Inked Fabric Printer Ribbon: Tricresyl Phosphate, Castor Oil and Carbon Black Ink (Neidich, Underwood, US 2,139,092)
Ribbon inks made with plain oils went thin in warm weather and rancid with age, so the ribbon printed unevenly and soon dried out. Neidich replaced half the oil with tricresyl phosphate, which keeps the ink at an even thickness and does not oxidise.
Result: a fabric ribbon saturated with a non-drying black ink for typewriters and printers.
Source: Neidich, US 2,139,092 (Underwood Elliott Fisher, 1938). Not given: which fibre the ribbon is woven from (he says only an absorbent fabric), how the ink is put on. Picture drawn by Youblob.
中级
2 hours
说明
1
1
Weigh the ink
Weigh the ink
Parts by weight: tricresyl phosphate 50, castor oil 50, carbon black 20, Prussian blue toning base 20. Neidich allows some variation.
此步骤所需材料：
磷酸三甲苯酯50 parts
蓖麻油（冷榨、无己烷）50 parts
炭黑粉20 parts
普鲁士蓝20 parts所需工具：
粉碎磨2
2
Grind the pigments into the oils
Grind the pigments into the oils
Grind the carbon black and Prussian blue with the tricresyl phosphate and castor oil in a mill until the colour is spread evenly through the ink.
所需工具：
粉碎磨3
3
Take an absorbent ribbon fabric
Take an absorbent ribbon fabric
Use a woven ribbon of absorbent fabric. Neidich does not say which fibre or width.
此步骤所需材料：
未上墨色带织物1 as required所需工具：
剪刀4
4
Saturate the ribbon
Saturate the ribbon
Saturate the ribbon with the ink. Neidich says only that it is applied as usual. Ours: run it through the ink and squeeze it between rollers so it is evenly wet, not dripping.
所需工具：
浸涂辊对材料
5- 50 parts占位符
- 50 parts占位符
- 20 parts占位符
- 20 parts占位符
- 1 as required占位符
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