CN102182115A - Process for disacidifying paper with canned spray - Google Patents
Process for disacidifying paper with canned spray Download PDFInfo
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- CN102182115A CN102182115A CN 201110032933 CN201110032933A CN102182115A CN 102182115 A CN102182115 A CN 102182115A CN 201110032933 CN201110032933 CN 201110032933 CN 201110032933 A CN201110032933 A CN 201110032933A CN 102182115 A CN102182115 A CN 102182115A
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Abstract
The invention discloses a process for disacidifying paper with canned spray, which relates to a method and process for disacidifying paper. When the pH of paper is smaller than or equal to 6.5, the prescription of disacidifying liquid comprises 2.0-4.5 percent of calcium bicarbonate and 2.01 percent of suspension. The paper disacidification is carried out by adopting a canned disacidifying liquid spray method; during canning, a high-pressure resistant metal tank is adopted, and carbon dioxide or other inert gases are charged; during use, the disacidifying liquid can be sprayed on paper by the charged gases; and the invention has the advantages of simple and easy operation, low cost and convenience for carrying, simplifies the disacidifying work procedure, improves the working efficiency and has no any adverse influence to the environment and human health.
Description
Technical field:
The present invention relates to a kind of paper disacidify method and technology, be specifically related to method and the technology of the canned spray of a kind of usefulness the paper disacidify.
Background technology:
Acid is the key factor that influences the paper life-span, hydrionicly exists for cellulosic hydrolysis catalyst is provided, and has greatly reduced the mechanical strength and the life-span of paper.Because the influence of each side factors such as external environment condition, paper internal component and production procedure, the acidifying of paper is inevitable, how the paper disacidify has been become the outstanding problem of domestic and international reply paper long preservation.
The disacidify that paper is carried out is handled, and it is according to theoretical for neutralization, promptly use in the alkaline matter and paper in acid in acid, do not influence the performance of paper and writing simultaneously substantially.
Exploration about paper disacidify technology starts from the thirties in last century, develops so far, and mature methods is liquid phase disacidify method and gas phase disacidify method.Wherein liquid phase disacidify method mainly adopts calcium bicarbonate, magnesium bicarbonate, methoxyl group magnesium bicarbonate and more complicated organic mixed solution, as Wei Tuofa, and gas phase disacidify method mainly adopted ammonia, morphine quinoline, diethyl zinc (DZE method) or the like, and present also handlebar gas phase and liquid phase are in conjunction with the method for disacidify.Through very long exploration, clear and definite gradually: as on the one hand good disacidify effect will to be arranged, and keep long-term acid-resisting, will paper performance and writing information not had destructiveness on the other hand for the requirement of disacidify technology.Energy-conserving and environment-protective also are one of factors of considering.
Disacidify method and technology are varied both at home and abroad at present, but still have many problems.The first often needs to rely on the certain device support, and equipment cost is very high, and technical strong, it is big to promote difficulty, and the security guarantee measure requires high.It two is the disacidify DeGrain.
Summary of the invention:
The purpose of this invention is to provide method and the technology of the canned spray of a kind of usefulness to the paper disacidify, its operation is simple and easy, with low cost, is convenient for carrying.Simplify the disacidify working procedure, increase work efficiency, environment and health are not had any harmful effect.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: the prescription of disacidify liquid consists of: calcium bicarbonate and suspension.
PH when paper: in the time of≤6.5, the recipe ratio of disacidify liquid is: calcium bicarbonate 2.5-4.5%, suspension 2.01%.
The present invention adopts can injection disacidify liquid method to carry out paper deacidification, adopt high pressure resistant metal can during can, charge into carbon dioxide or other inert gases, can disacidify liquid be sprayed onto on the paper by the gas that pours into during use, after spraying disacidify solution, acidic materials in the acidifying paper are neutralized by the active ingredient in the solution, follow this chemical change, certain alkaline sedimentation has been retained in the paper, thereby improved paper effectively and taken care of the antiacid performance of process from now on, be a disacidify also, can guarantee that paper presents neutrality or alkalescent for a long time.
The present invention has following beneficial effect:
1) the disacidify effect is remarkable, spray disacidify solution of the present invention after, the pH value of acidifying paper can return to about 7.8～8.5.
2) the disacidify solution of the present invention's employing forms alkaline sedimentation when removing the paper middle acid substance, be stranded in the paper, can effectively strengthen the acid-resisting of paper, strengthens the paper whiteness simultaneously.
3) sprinkling back rate of drying is fast, can not cause the fold distortion of paper, and paper performance is not had influence substantially.
4) the water-insoluble writing on the paper is not had influence, can not cause the damage of writing information.
5) operation is simple and easy, with low cost, is convenient for carrying.Simplify the disacidify working procedure, increase work efficiency.
6) environment and health there is not any harmful effect.
The specific embodiment:
This specific embodiment is by the following technical solutions: the prescription of disacidify liquid consists of: calcium bicarbonate and suspension.
PH when paper: in the time of≤6.5, the recipe ratio of disacidify liquid is: calcium bicarbonate 2.0-4.5%, suspension 2.01%.
Using method: after selected process object, with surveying the pH value that the acid pen detects the acidifying paper, select the disacidify solution of variable concentrations for use according to the acid degree of paper earlier.Directly disacidify solution is evenly sprayed in the acidifying paper surface, in processing procedure, page is dry rapidly, does not generally need independent dried, this specific embodiment is not limited only to the individual sheets disacidify, and books, newpapers and periodicals or ancient books archives originally single or small lot also can be used.
This specific embodiment adopts can injection disacidify liquid method to carry out paper deacidification, adopt high pressure resistant metal can during can, charge into carbon dioxide or other inert gases, can disacidify liquid be sprayed onto on the paper by the gas that pours into during use, after spraying disacidify solution, acidic materials in the acidifying paper are neutralized by the active ingredient in the solution, follow this chemical change, certain alkaline sedimentation has been retained in the paper, thereby improved paper effectively and taken care of the antiacid performance of process from now on, be a disacidify also, can guarantee that paper presents neutrality or alkalescent for a long time.
Described high pressure resistant Aluminum Bottle can also be high pressure resistant metal can.
This specific embodiment has following beneficial effect:
1) the disacidify effect is remarkable, spray disacidify solution of the present invention after, the pH value of acidifying paper can return to about 7.8～8.5.
2) the disacidify solution of the present invention's employing forms alkaline sedimentation when removing the paper middle acid substance, be stranded in the paper, can effectively strengthen the acid-resisting of paper, strengthens the paper whiteness simultaneously.
3) sprinkling back rate of drying is fast, can not cause the fold distortion of paper, and paper performance is not had influence substantially.
4) the water-insoluble writing on the paper is not had influence, can not cause the damage of writing information.
5) operation is simple and easy, with low cost, is convenient for carrying.Simplify the disacidify working procedure, increase work efficiency.
6) environment and health there is not any harmful effect.
Embodiment 1: get pH value of paper and be 4.5 nineteen fifty-two map, with its flattening and remove the dust stain, place on the operating desk, evenly spray disacidify liquid after, the very fast drying of paper is chosen different three point measurement pH values on the map, is respectively 7.6,7.6 and 7.7.
Embodiment 2: choose the pH value and be 4.8 nineteen forty-two newspaper, after the preliminary cleaning, flatten and place on the operating desk, the operating room temperature is 22 ℃, and humidity 50% is to leaving standstill 1 minute behind the page sprinkling disacidify liquid, the page bone dry, selecting three place's diverse locations to record mean ph value is 8.1.
Embodiment 3: choose the pH value and be 5.3 machine-made paper archives in 1902, after the preliminary cleaning, flatten and place on the operating desk, to leaving standstill 1 minute behind the page sprinkling disacidify liquid, the page bone dry, selecting three place's diverse locations to record mean ph value is 7.8, the paper whiteness improves 34%.
Embodiment 4: the historical archives (paper is a hand-made paper) of choosing the pH value and be 6.0 qianlong years, after the preliminary cleaning, flattening places on the operating desk, behind page sprinkling disacidify liquid, left standstill 1 minute, the page bone dry, selecting three place's diverse locations to record mean ph value is 7.9, the paper whiteness improves 28%.
Claims (4)
1. one kind with method and the technology of canned spray to the paper disacidify, the disacidify method and the technology that it is characterized in that it are: adopt can to spray disacidify liquid method and carry out paper deacidification, adopt high pressure resistant metal can during can, charge into carbon dioxide or other inert gases, can depickling liquid be sprayed onto on the paper by the gas that pours into during use, after spraying disacidify solution, acidic materials in the acidifying paper are neutralized by the active ingredient in the solution, follow this chemical change, certain alkaline sedimentation has been retained in the paper, taking care of the antiacid performance of process from now on thereby improved paper effectively, also i.e. disacidify can guarantee that paper presents neutrality or alkalescent for a long time.
2. the canned spray of a kind of usefulness according to claim 1 is characterized in that described high voltage bearing metal can to the method and the technology of paper disacidify.
3. the canned spray of a kind of usefulness according to claim 1 is characterized in that the prescription of described disacidify liquid consists of: calcium bicarbonate and suspension to the method and the technology of paper disacidify.
4. the canned spray of a kind of usefulness according to claim 2 is characterized in that the pH when paper to the method and the technology of paper disacidify: in the time of≤6.5, the recipe ratio of disacidify liquid is: calcium bicarbonate 2.01-4.5%, suspension 2.01%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110032933 CN102182115A (en) | 2011-01-30 | 2011-01-30 | Process for disacidifying paper with canned spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110032933 CN102182115A (en) | 2011-01-30 | 2011-01-30 | Process for disacidifying paper with canned spray |
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| CN102182115A true CN102182115A (en) | 2011-09-14 |
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| CN 201110032933 Pending CN102182115A (en) | 2011-01-30 | 2011-01-30 | Process for disacidifying paper with canned spray |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644218A (en) * | 2012-04-17 | 2012-08-22 | 浙江大学 | Arc discharge paper deacidification device and method |
| CN105544299A (en) * | 2016-01-05 | 2016-05-04 | 南京博物院 | Paper document deacidification device and method |
| CN108221480A (en) * | 2016-12-21 | 2018-06-29 | 金东纸业（江苏）股份有限公司 | A kind of method that depickling is carried out to paper document |
| CN115216997A (en) * | 2022-07-27 | 2022-10-21 | 南京博物院 | Method for deacidifying paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860685A (en) * | 1985-07-10 | 1989-08-29 | Smith Richard D | Treatment of cellulosic materials |
| DE10139517A1 (en) * | 2001-08-10 | 2003-02-20 | Peter Zitzmann | Method and device for deacidifying books |
| CN101538816A (en) * | 2009-04-27 | 2009-09-23 | 广东工业大学 | Paper deacidification method |
-
2011
- 2011-01-30 CN CN 201110032933 patent/CN102182115A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860685A (en) * | 1985-07-10 | 1989-08-29 | Smith Richard D | Treatment of cellulosic materials |
| DE10139517A1 (en) * | 2001-08-10 | 2003-02-20 | Peter Zitzmann | Method and device for deacidifying books |
| CN101538816A (en) * | 2009-04-27 | 2009-09-23 | 广东工业大学 | Paper deacidification method |
Non-Patent Citations (2)
| Title |
|---|
| 《档案学通讯》 20011231 戴红旗等 图书档案纸质恶化的内因及脱酸处理方法的研究 第63-65页 1-4 , 第01期 * |
| 《陕西师范大学学报(自然科学版)》 20040630 邢惠萍 纸张保护的研究进展 第227-第229页 1、3 第32卷, * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644218A (en) * | 2012-04-17 | 2012-08-22 | 浙江大学 | Arc discharge paper deacidification device and method |
| CN105544299A (en) * | 2016-01-05 | 2016-05-04 | 南京博物院 | Paper document deacidification device and method |
| CN105544299B (en) * | 2016-01-05 | 2017-06-16 | 南京博物院 | A kind of paper document deacidifying device and acid stripping method |
| CN108221480A (en) * | 2016-12-21 | 2018-06-29 | 金东纸业（江苏）股份有限公司 | A kind of method that depickling is carried out to paper document |
| CN115216997A (en) * | 2022-07-27 | 2022-10-21 | 南京博物院 | Method for deacidifying paper |
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Application publication date: 20110914 |