Preparation method of paper document quality keeping liquid
A technology of paper documents and preservation liquid, applied in the direction of botany equipment and methods, liquid spraying equipment, paper, etc., can solve the problem without considering the aging, wear and decay of the paper itself, and rarely considering the oxidation and fading of handwriting Or smearing, it is impossible to completely eliminate the influence of the above factors, etc., to achieve the effect of simple and reliable processing method, preventing document deterioration and damage, and reasonable structure
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[0018] The method for preparing the paper document preservation solution involved in the present embodiment comprises the following steps:
[0019] (1) First select fresh wormwood and pepper leaves according to the weight ratio of 3:1, clean them respectively, chop them into 1-3cm fragments and put them into the extraction container, then add fresh wormwood and pepper leaves with a weight of 3 -5 times the weight percent concentration of 75-90% ethanol aqueous solution, the temperature is controlled to be 40-45 °C in a sealed state, stirred and soaked for 2-3 hours, then left to stand for 30-60 minutes, and the supernatant is used as an insect repellent for later use ;
[0020] (2) Then mix 8-12 parts of film-forming agent, 2-5 parts of filter agent, 5-15 parts of curing agent, 0.5-1 part of talcum powder and 10-15 parts of insect repellent in a ceramic container at room temperature and mix evenly , and then heat the ceramic container and materials in a water bath to 50-60°C ...
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