Traditional Chinese Special deinking essence: Workshop Formula, Ratios & Method
In short: Traditional Chinese Special deinking essence. This entry documents a formula & ratios taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 2250 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Special deinking essenceClothes stained by ink often cannot be removed with soap, especially blue and black ink stains, which are even more difficult to remove. The white textile fiber is stained with a pool of blue and black ink. The stain cannot be removed repeatedly, which is really unsightly. Soap cannot remove the ink because the ink is made with different chemical compositions. For example, it is made of gallic acid and ferrous sulfate. The ink stain can only be eliminated by soaking it with a slightly concentrated oxalic acid solution. After the stain is removed, moisten it with clean water. Do not expose it to the sun. Just use two pieces of blotting paper (commonly known as water printing paper), one on the top and one on the bottom to absorb the moisture. For other black inks, you can use a thin solution of bleaching powder to remove the stain first, then wash it with acetic acid and water, and still use blotting paper to absorb the moisture. For inks made with aniline pigments, the method of removing stains is particularly simple. Just apply alcohol on the stain and rub it to remove it. The above-mentioned liquids are acidic and can be dipped in with a feather or a brush and applied to the stained area. However, do not leave the solution on the clothes for a long time. Once the stain disappears, wash it with clean water immediately to avoid damaging the fibers of the fabric. The following formulas can also be used.Recipe 1:Citric acid1 servingDistilled water10 servingsConcentrated solution of borax …
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