Small-Scale Chinese Handmade Paper Production: Workshop Formula, Ratios & Method
In short: Small-Scale Chinese Handmade Paper Production: Workshop Formula, Ratios & Method. 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 2459 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
Wallpaper, plaid fan paper and other color-changing adhesive materialsWallpapers, plaid fan paper, etc. that are popular in the international market are all pre-coated with a layer of adhesive on the back. When using, make it fully paste with water and then paste it. Since the amount of water is not easy to control, sometimes the adhesion condition is not good and it is easy to peel off. In order to improve the above problem, two chemical substances should be attached to the veneer coated with the paste layer. The two chemicals are isolated from each other. When they meet water, they react to form colored substances, which can be used to determine the optimal amount of water. After the two substances react with water, if the color does not appear as it should appear, or the intensity is uneven, it indicates insufficient water consumption (see the table below).NOABGroup A compound colorcolor after discoloration1diacetyl oximeNickelNonered2Salicylic acid or sulfonylsalicylic acidferric chlorideNoneblue and purple30-phenanthrolineFerriteNonered48-hydroxyazonaphthaleneFerriteNonegreen5Metamin blue BFerriteNoneblue and purple6BipyridineFerriteNonered7Chromium turns sourFerric chloride(Ⅲ)Nonegreen88-hydroxyazonaphthalene iron complex saltEthylenediaminetetraacetic acid and its saltsgreenNone98-hydroxyazonaphthalene iron complex salt0--Phenanthrolinegreenred10Amino blue iron complexEthylenediaminetetraacetic acid and its saltsblue and purpleNone11Amino blue iron complex0--Phenanthrolineblue and purplered12Chromate iron complexEthylenediaminetetraacetic acid and its saltsgreenNone13Chromate iron complex0--Phenanthrolinegreenred14Bromothymol blueCyclohexamethylenetetramineLight yellowGreen15neutral redCyclohexamethylenetetramineredYellow16PhenolphthaleinSodium bicarbonate or ammonium bicarbonate …
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Lei Cheng
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