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Method of protecting archives with red-ink handwriting from spreading and sinking in during process of papering and repairing

A technology of red ink and handwriting, applied in the field of materials, can solve the problems of ineffective prevention of red ink handwriting or imprint smearing, affecting the bonding effect, affecting the quality of repair and mounting, etc. The effect of hydrolysis

Active Publication Date: 2012-03-14
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the current protection and reinforcement methods, whether it is polymethyl methacrylate reinforcement, gelatin solution reinforcement, ethyl cellulose solution reinforcement or amide copolymer (nylon-carburon) solution reinforcement method and fluoroplastic reinforcement method, all The use of polymer materials for direct reinforcement not only cannot effectively prevent red ink handwriting or imprints from blurring when exposed to water, but also seriously affects the quality of repairing and mounting
When mounting, the paste cannot soak into the paper and the mounting, which will affect the bonding effect between the two, resulting in poor mounting effect

Method used

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  • Method of protecting archives with red-ink handwriting from spreading and sinking in during process of papering and repairing
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  • Method of protecting archives with red-ink handwriting from spreading and sinking in during process of papering and repairing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Taking the strengthening of rice paper with red ink writing as an example, the specific protection methods are as follows:

[0030] 1. Preparation and coating method of primary reinforcement

[0031] Put 1.0g of phosphotungstic acid, 3.1g of phosphoric acid, and 50.4g of acetone in a 150mL reagent bottle, mix well, add 7.1g of ethyl orthosilicate, the mass ratio of phosphotungstic acid to phosphoric acid, acetone, and ethyl orthosilicate is 1∶3.1∶50.4∶7.1, oscillate fully to disperse phosphoric acid, phosphotungstic acid and ethyl orthosilicate evenly in acetone, prepare primary reinforcing agent, clamp absorbent cotton with tweezers, dip in primary reinforcing agent, and spread evenly Put it on rice paper with red ink writing, and dry it with a hair dryer.

[0032] 2. Preparation and coating method of secondary reinforcement

[0033] Put 1.0g of ethyl cellulose, 6.25g of barium hydroxide, and 40.0g of methanol in a 100mL round-bottomed three-neck flask, stir and refl...

Embodiment 2

[0037] Taking the strengthening of rice paper with red ink writing as an example, the specific protection methods are as follows:

[0038] In step 1 of the preparation and coating method of the primary reinforcing agent in this example, 1.0g of phosphotungstic acid, 2.3g of phosphoric acid, and 52.0g of acetone were placed in a 150mL reagent bottle, mixed evenly, and 2.8g of ethyl orthosilicate was added, The mass ratio of phosphotungstic acid to phosphoric acid, acetone, and ethyl orthosilicate is 1:2.3:52.0:2.8, fully oscillate, so that phosphoric acid, phosphotungstic acid, and ethyl orthosilicate are uniformly dispersed in acetone. Use tweezers to hold the absorbent cotton, dip in the reinforcing agent once, spread it evenly on the rice paper with red ink writing, and dry it with a hair dryer. In step 3 of the preparation and coating method of the three times of reinforcing agent, 100g mass fraction of 4% ethyl cellulose banana aqueous solution and 3g mass fraction of 4% p...

Embodiment 3

[0040] Taking the strengthening of rice paper with red ink writing as an example, the specific protection methods are as follows:

[0041]In step 1 of the preparation and coating method of the primary reinforcing agent in this example, 1.0g of phosphotungstic acid, 3.9g of phosphoric acid, and 48.8g of acetone were placed in a 150mL reagent bottle, mixed evenly, and 9.2g of ethyl orthosilicate was added, The mass ratio of phosphotungstic acid to phosphoric acid, acetone, and ethyl orthosilicate is 1:3.9:48.8:9.2, shake fully to make phosphoric acid, phosphotungstic acid, and ethyl orthosilicate evenly dispersed in acetone, and prepare a reinforcement Use tweezers to hold the absorbent cotton, dip in the reinforcing agent once, spread it evenly on the rice paper with red ink writing, and dry it with a hair dryer. 100g mass fraction is 4% ethyl cellulose banana aqueous solution and 17g mass fraction is 4% polymethyl methacrylate banana aqueous solution, and mass fraction is 4% e...

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Abstract

Provided is a method of protecting archives with red-ink handwriting from spreading and sinking in during process of papering and repairing. The method comprises the steps of uniformly mixing, by mass, 1 part of phospho-tungstic acid, 2.3 to 3.9 parts of phosphoric acid, 48.8 to 52.0 parts of acetone and 2.8 to 9.2 parts of tetraeththyl orthosiliate to prepare a first reinforcing agent and coating the agent on red-ink handwritings; preparing a second reinforcing agent with 1 part by mass of ethyl cellulose, 6.25 parts by mass of barium hydroxide and 40 parts by mass of methanol and coating the agent on the red-ink handwritings coated with the first reinforcing agent; and preparing a third reinforcing agent with, by mass, 1 part of ethyl cellulose banana oil solution and 0.03 to 0.17 part of polymethylmethacrylate banana oil solution, wherein mass percentage of the ethyl cellulose banana oil solution is 4% and mass percentage of the polymethylmethacrylate banana oil solution is 4%, andcoating the third reinforcing agent on the red-ink handwritings coated with the second reinforcing agent. The method of protecting the red-ink handwritings enables improvement in tensile strength, folding strength and tearability of testing paper after dry heating aging, hydrothermal aging and ultraviolet aging tests. After the aging process, the handwritings which are reinforced by the reinforcing agents exhibit minor chromatic aberration. Pigments of the handwritings are not easy to fade and the handwritings can be durably kept.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a protection method for preventing blurring during the process of red ink handwriting file repairing and mounting. Background technique [0002] In many archives before and after the founding of the People's Republic of China, documents with red marks are very common, and red ink writing is particularly important in quite a few archives. Red marks and red ink writing are important original components of these archives. The main components of the red mark and red ink writing are Acid Scarlet G or Aurora A, which are very water-soluble, and will be severely blurred when exposed to water during the mounting process, causing the original appearance of the file to be completely changed and seriously damaged. On May 12, 2008, my country's Sichuan, Shaanxi, Gansu and other places suffered from severe earthquake disasters. In this disaster, not only the houses and propertie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H25/18B44C7/08D21H17/37D21H17/65D21H17/64
Inventor 李玉虎宗岚王文军
Owner SHAANXI NORMAL UNIV
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