CN108360296A - A kind of paper sheet deacidification agent and its preparation method and application - Google Patents
A kind of paper sheet deacidification agent and its preparation method and application Download PDFInfo
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- CN108360296A CN108360296A CN201810184524.9A CN201810184524A CN108360296A CN 108360296 A CN108360296 A CN 108360296A CN 201810184524 A CN201810184524 A CN 201810184524A CN 108360296 A CN108360296 A CN 108360296A
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- Prior art keywords
- paper sheet
- deacidification agent
- paper
- sheet deacidification
- water
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/18—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00 of old paper as in books, documents, e.g. restoring
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- Paper (AREA)
Abstract
The invention discloses a kind of paper sheet deacidification agents, including：Cotton tree extract, soluble tetraborate, nano metal hydroxide, alkali metal bicarbonate salt and water.The preparation method of the paper sheet deacidification agent is also disclosed, including：(1) cotton tree extract is added to the water, is thoroughly mixed, filtered；(2) nano metal hydroxide, alkali metal bicarbonate salt and soluble tetraborate are added in the filtrate that step (1) obtains, is sufficiently stirred and carries out 0.5~1.5h of supersound process；(3) still aging 1~12h obtains the paper sheet deacidification agent.Paper sheet deacidification agent of the invention is environmentally friendly, does not have security implication to human body and environment, and depickling is thoroughly uniform, and is remained with enough alkali, effect duration is long, is not easy acid reflux, is not damaged to paper, and there is certain biocidal property, be conducive to the long-term preservation of paper after use.
Description
Technical field
The invention belongs to paper deacidification field, it is related to a kind of paper sheet deacidification agent and preparation method thereof, more particularly to a kind of use
In the deacidification agent of plasma paper deacidification method.
Background technology
The units such as library, archives, museum save the paper material such as ten hundreds of archives, books, calligraphy and painting, newspaper
Material.These paper documents are the precious legacy of human civilization, have not reproducible important historical cultural environment.With the time
Passage, affected by various factors, a large amount of paper documents occur going mouldy, dusting fragmentation, pollute phenomena such as damaging by worms, and protect these texts
Change data is faced with stern challenge.For the paper document for protecting these to be acidified, in terms of people have carried out a large amount of paper deacidifications
Research.The basic principle of paper deacidification is exactly using the acidic materials in alkaline matter and in paper.Being exactly specifically will
Weak base penetrates into inside page, neutralizes the free acid generated, and retain certain reserve alkalinity in the page after depickling, extensive
Multiple certain flexibility inhibits fiber further to hydrolyze the erosion with sour gas in air, delays papery speed of worsening.
In general, deacidification agent needs to meet claimed below：(1) must be safe and reliable, in the chemical reaction process of depickling
In generated intermediate product, by-product and final product all should be nontoxic, harmless, the gas of intense stimulus smell cannot be generated
Body cannot generate the chemical substance being pernicious to people；(2) deacidification agent is environmentally friendly with deacidification.In the chemical reaction of depickling
Intermediate product, by-product and the final product generated in the process all should be environmental-friendly, cannot generate harmful to environment
Substance；(3) it cannot includes paper, shape to constituting the material of document that cannot have damage, deacidification agent to any part in document
It is damaged at the material such as ink, dyestuff, seal etc. of writing.Document cannot fade after depickling, bleeding.Deacidification agent does not destroy
Paper fibre does not damage the chemical change of document with fiber, filler, dyestuff, pigment etc.；(4) production cost is low, is easy to grasp
Make.
Deacidification agent can be divided mainly into three classes at present：Aqueous solution class, non-aqueous class and gaseous state depickling class.The safety of aqueous solution class and
Deacidification effect is preferable, but is easy to happen paper distortion.
Non-aqueous class deacidification agent depickling is uneven, effect is poor, be easy to cause paper and fades, has peculiar smell.And non-aqueous class is organic
Deacidification agent is inflammable, bio-toxicity is larger, threatens to operator's health, and certain organic matters (freon) are harmful to environment,
The use of gaseous state deacidification agent depickling is dependent on professional equipment costly, and there are inflammable and explosive security risks, and alkali is residual
Allowance is few.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of paper sheet deacidification agents and its preparation method and application, use
The deacidification agent of the present invention carries out depickling processing to paper, and depickling is thoroughly uniform, and is remained with enough alkali, effect duration
It is long, it is not easy acid reflux.
The technical solution adopted by the present invention is as follows：
A kind of paper sheet deacidification agent, the paper sheet deacidification agent include：Cotton tree extract, soluble tetraborate, nanogold
Belong to hydroxide, alkali metal bicarbonate salt and water.
Preferably, the paper sheet deacidification agent includes following weight percentage components：Cotton tree 0.5~7wt% of extract,
Soluble 0.01~3wt% of tetraborate, 0.01~2wt% of nano metal hydroxide, alkali metal bicarbonate salt 0.01~
1wt%, surplus are water.
Cotton tree is the tree being grown in the saline and alkaline desert of Xinjiang Taklimakan Desert Area, and a large amount of salt can be absorbed in soil.It is different
Ye Yangzhong contains there are many alkaline matters such as organic base, alkaline, inorganic salts, can be extracted using artificial extracting method.
These extract from the preferable compatibility with paper fibre possessed by the natural alkaline matter of plant, can make trona
Substance is easier the inside into paper fibre, to which neutralization reaction occur with the acidic materials in paper, and has in paper
The residual of certain alkaline matter, to keep the paper holding time more long.
The preparation method of the cotton tree extract includes：After the leaf of cotton tree and bark cleaning, crush, sieving,
The mixed liquor that water/acetone/glycerine of 8~10 times of amounts of powder weight is added extracts 2~3 times at 60~80 DEG C, extracts every time
Time be 1~2h, filtering, it is 1.0~1.2 that filtrate, which is concentrated into relative density, be added after cooling ethyl alcohol make alcohol content be 50~
70%, it stands, filters after stirring evenly, after filtrate recycling ethanol, 24~72h is aged at 20~40 DEG C, the different leaf is obtained by filtration
Poplar extract.
Preferably, the mass ratio of the leaf and bark of the cotton tree of selection is 1：1~5.The present invention chooses the spy of cotton tree
Determine position to extract active ingredient, the leaf and bark of cotton tree are not only rich in alkaline matter, and content of cellulose itself
Higher, the alkaline matter at the position and the compatibility of paper fibre are preferable, can effectively avoid the damage to paper, meanwhile, different leaf
Poplar extract also has certain biocidal property, is conducive to the long-term preservation of paper.
In the mixed liquor of the water/acetone/glycerine, the volume ratio of water, acetone and glycerine is 1：0.5~1.5：0.5
~1.5.The present invention extracts cotton tree using the mixed liquor of water/acetone/glycerine, can effectively extract basic species therein
Matter, after extraction be added ethyl alcohol to alcohol amount be 50~70%, the impurity such as protein, polysaccharide can be effectively removed, utmostly extraction and
Retain alkaline matter.
Preferably, the soluble tetraborate be in sodium tetraborate, dipotassium tetraborate, lithium tetraborate and calcium tetraborate extremely
Few one kind.
Preferably, the nano metal hydroxide is at least one of nano-sized magnesium hydroxide and nano calcium hydroxide.
Preferably, the alkali metal bicarbonate salt is at least one of magnesium bicarbonate, calcium bicarbonate and saleratus.
The present invention also provides the preparation methods of the paper sheet deacidification agent, include the following steps：
(1) cotton tree extract is added to the water, is thoroughly mixed, filtered；
(2) nano metal hydroxide, alkali metal bicarbonate salt and soluble four boron are added in the filtrate that step (1) obtains
Hydrochlorate is sufficiently stirred and carries out 0.5~1.5h of supersound process；
(3) still aging 1~12h obtains the paper sheet deacidification agent.
Preferably, it in step (2), is stirred at 50~80 DEG C.
The present invention also provides a kind of applications of the paper sheet deacidification agent, and the application method of the paper sheet deacidification agent is such as
Under：
(1) processing is scanned to paper to be protected using atmospheric air low temperature plasma；
(2) deacidification agent of atomization is sprayed on to plasma-treated paper surface.
Compared with prior art, the present invention has the advantages that：
(1) paper sheet deacidification agent of the invention is environmentally friendly, does not have security implication to human body and environment.
(2) depickling protection processing is carried out to paper using the paper sheet deacidification agent of the present invention, it can by pH value of paper after depickling
To control in suitable range, i.e. pH is 7.1~8.5.Deacidification effect is reached, has ensured that paper is in weakly alkaline environment
In, the holding time of paper is extended, and avoid alkalinity excessively high and cause the damage to paper fibre.
(3) depickling processing is carried out to paper using the deacidification agent of the present invention, depickling is thoroughly uniform, and residual with enough alkali
It stays, effect duration is long.
(4) deacidification agent using the present invention is handled by plasma depickling, and paper deacidification effect is lasting, is not easy acid reflux.
(5) paper sheet deacidification agent of the invention does not damage paper, and writing dizzy dye, pigment will not be caused aberration occur
Situations such as.
(6) paper sheet deacidification agent of the invention has certain biocidal property, is conducive to the long-term preservation of paper after use.
Specific implementation mode
Further detailed explanation is done to the present invention with reference to embodiment.
Embodiment 1
It after 3kg cotton trees leaf and the cleaning of 7kg cotton tree barks, crushes, crosses 10 mesh sieve, 10 times of amounts of powder weight are added
Water/acetone/glycerine mixed liquor (volume ratio of water, acetone and glycerine be 1：0.7：1) it is extracted 3 times at 70 DEG C, mistake
Filter, it is 1.10~1.15 that filtrate, which is concentrated into relative density, and ethyl alcohol is added after cooling makes alcohol content be 65%, is stood after stirring evenly, mistake
It filters, after filtrate recycling ethanol, is aged 72h at 30 DEG C, cotton tree extract is obtained by filtration.
It takes cotton tree extract 700g to be added in 9209g water, is thoroughly mixed, filter；Nanometer hydrogen-oxygen is added in filtrate
Change magnesium 30g, magnesium bicarbonate 60g and lithium tetraborate 1g, is sufficiently stirred at 80 DEG C and carries out supersound process 0.5h；Still aging 1h,
Obtain the paper sheet deacidification agent.
Embodiment 2
The cotton tree extract 600g prepared in Example 1 is added in 9339g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano calcium hydroxide 1g, calcium bicarbonate 30g and sodium tetraborate 30g are sufficiently stirred at 70 DEG C and carry out supersound process 1h；
Still aging 2h obtains the paper sheet deacidification agent.
Embodiment 3
The cotton tree extract 500g prepared in Example 1 is added in 9344g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano calcium hydroxide 40g, nano-sized magnesium hydroxide 55g, saleratus 1g and dipotassium tetraborate 60g are sufficiently stirred at 50 DEG C
And carry out supersound process 1h；Still aging 4h obtains the paper sheet deacidification agent.
Embodiment 4
The cotton tree extract 400g prepared in Example 1 is added in 9365g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano-sized magnesium hydroxide 60g, calcium bicarbonate 40g, saleratus 15g, sodium tetraborate 70g and lithium tetraborate 50g, at 65 DEG C
It is sufficiently stirred and carries out supersound process 1h；Still aging 6h obtains the paper sheet deacidification agent.
Embodiment 5
The cotton tree extract 300g prepared in Example 1 is added in 9335g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano calcium hydroxide 130g, calcium bicarbonate 30g, magnesium bicarbonate 35g, dipotassium tetraborate 90g and lithium tetraborate 90g, 60 DEG C
Under be sufficiently stirred and carry out supersound process 1h；Still aging 8h obtains the paper sheet deacidification agent.
Embodiment 6
Middle cotton tree extract 200g prepared by Example 1 is added in 9285g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano-sized magnesium hydroxide 120g, nano calcium hydroxide 80g, magnesium bicarbonate 40g, saleratus 45g, sodium tetraborate is added
130g and dipotassium tetraborate 100g is sufficiently stirred at 55 DEG C and carries out supersound process 1h；It is de- to obtain the paper by still aging 10h
Sour agent.
Embodiment 7
The cotton tree extract 50g prepared in Example 1 is added in 9390g water, is thoroughly mixed, and filters；Filtrate
Middle addition nano-sized magnesium hydroxide 160g stirs 30min, then carries out supersound process 1h；Calcium bicarbonate 30g, saleratus is added
30g, magnesium bicarbonate 40g, sodium tetraborate 100g, lithium tetraborate 100g and dipotassium tetraborate 100g are sufficiently stirred and carry out at room temperature
It is ultrasonically treated 1.5h；Still aging 12h obtains the paper sheet deacidification agent.
Comparative example 1
Paper sheet deacidification agent used in this comparative example is sodium tetraborate saturated aqueous solution, and application method is same as Example 1.
Comparative example 2
Paper sheet deacidification agent used in this comparative example is same as Example 1, the difference is that cotton tree extract is changed to
The saleratus of quality, application method and embodiment 1 are identical.
Comparative example 3
Compared with Example 1, the preparation method for differing only in used cotton tree extract of this comparative example is as follows：
It after 10kg cotton tree inflorescences are cleaned, crushes, crosses 10 mesh sieve, water/acetone of 10 times of powder weight amount/the third three are added
(volume ratio of water, acetone and glycerine is 1 to the mixed liquor of alcohol：0.7：1) it extracts 3 times, filters at 70 DEG C, filtrate is concentrated into phase
It is 1.10~1.15 to density, ethyl alcohol is added after cooling makes alcohol content be 65%, stands, filters, filtrate recycling ethanol after stirring evenly
Afterwards, it is aged 72h at 30 DEG C, cotton tree extract is obtained by filtration.
In addition to this, in paper sheet deacidification agent the type and dosage, preparation method and application method of each component with embodiment 1
It is identical.
Comparative example 4
Compared with Example 1, the preparation method for differing only in used cotton tree extract of this comparative example is as follows：
It after 3kg cotton trees leaf and the cleaning of 7kg cotton tree barks, crushes, crosses 10 mesh sieve, 10 times of amounts of powder weight are added
Water extracted 3 times at 70 DEG C, filter, it is 1.10~1.15 that filtrate, which is concentrated into relative density, and ethyl alcohol, which is added, after cooling makes containing alcohol
Amount is 65%, is stood after stirring evenly, and is filtered, and after filtrate recycling ethanol, is aged 72h at 30 DEG C, cotton tree extract is obtained by filtration.
In addition to this, in paper sheet deacidification agent the type and dosage, preparation method and application method of each component with embodiment 1
It is identical.
It takes the paper being acidified first to be scanned processing using atmospheric air low temperature plasma respectively, then will be atomized
Paper sheet deacidification agent even application prepared by Examples 1 to 7 and comparative example 1~4 is in paper surface.Will protection treated that paper is pressed
It is detected according to GB/T 1545-2008 detections pH value, according to GB/T12914-2008 detections tensile strength, according to GB/T 457-2008
It folding strength and carries out hydrothermal aging processing and testing pH value according to GB/T22894-2008, to quantify protecting effect, judges to protect
The influence to paper is handled, the results are shown in Table 1.
Table 1
As shown in Table 1, the paper that the present invention is prepared using the cotton tree extract and inorganic base of privileged site is de-
Sour agent, deacidification effect is good, and paper alkalinity is moderate after depickling, and pH value controls between 7.1~8.5.Meanwhile depickling processing improves
The mechanical performance of paper fibre, is conducive to the long-term preservation of paper.The deacidification agent of the present invention, with the compatibility of paper fibre compared with
Good, deacidification effect is thorough, is not easy acid reflux.
Claims (9)
1. a kind of paper sheet deacidification agent, which is characterized in that the paper sheet deacidification agent includes：Cotton tree extract, soluble tetraboric acid
Salt, nano metal hydroxide, alkali metal bicarbonate salt and water.
2. paper sheet deacidification agent according to claim 1, which is characterized in that the paper sheet deacidification agent includes following weight percent
The component of ratio：0.5~7wt% of cotton tree extract, soluble 0.01~3wt% of tetraborate, nano metal hydroxide
0.01~2wt%, 0.01~1wt% of alkali metal bicarbonate salt, surplus are water.
3. paper sheet deacidification agent according to claim 1, which is characterized in that the preparation method packet of the cotton tree extract
It includes：It after the leaf of cotton tree and bark cleaning, crushes, water/acetone/glycerine of 8~10 times of amounts of powder weight is added in sieving
Mixed liquor extracted 2~3 times at 60~80 DEG C, the time extracted every time is 1~2h, and filtering, filtrate is concentrated into relative density
It is 1.0~1.2, ethyl alcohol is added after cooling makes alcohol content be 50~70%, stands, filters after stirring evenly, after filtrate recycling ethanol,
It is aged 24~72h at 20~40 DEG C, the cotton tree extract is obtained by filtration.
4. paper sheet deacidification agent according to claim 1, which is characterized in that in the mixed liquor of the water/acetone/glycerine,
The volume ratio of water, acetone and glycerine is 1：0.5~1.5：0.5~1.5.
5. paper sheet deacidification agent according to claim 1, which is characterized in that it is described solubility tetraborate be sodium tetraborate,
At least one of dipotassium tetraborate, lithium tetraborate and calcium tetraborate.
6. paper sheet deacidification agent according to claim 1, which is characterized in that the nano metal hydroxide is nanometer hydrogen-oxygen
Change at least one of magnesium and nano calcium hydroxide.
7. paper sheet deacidification agent according to claim 1, which is characterized in that the alkali metal bicarbonate salt is magnesium bicarbonate, carbon
At least one of sour hydrogen calcium and saleratus.
8. a kind of preparation method of claim 1~7 any one of them paper sheet deacidification agent, which is characterized in that including walking as follows
Suddenly：
(1) cotton tree extract is added to the water, is thoroughly mixed, filtered；
(2) nano metal hydroxide, alkali metal bicarbonate salt and soluble tetraboric acid are added in the filtrate that step (1) obtains
Salt is sufficiently stirred and carries out 0.5~1.5h of supersound process；
(3) still aging 1~12h obtains the paper sheet deacidification agent.
9. a kind of application of claim 1~7 any one of them paper sheet deacidification agent, which is characterized in that the paper sheet deacidification agent
Application method it is as follows：
(1) processing is scanned to paper to be protected using atmospheric air low temperature plasma；
(2) deacidification agent of atomization is sprayed on to plasma-treated paper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184524.9A CN108360296B (en) | 2018-03-06 | 2018-03-06 | Paper deacidification agent and preparation method and application thereof |
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|---|---|---|---|
| CN201810184524.9A CN108360296B (en) | 2018-03-06 | 2018-03-06 | Paper deacidification agent and preparation method and application thereof |
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| CN108360296B CN108360296B (en) | 2020-07-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371754A (en) * | 2018-09-25 | 2019-02-22 | 首都博物馆 | A kind of paper sheet deacidification agent composition and the acid stripping method for being acidified paper |
| CN110552241A (en) * | 2019-07-12 | 2019-12-10 | 华南理工大学 | Method for deacidifying and enhancing acidified and aged paper documents by using sodium silicate or borax and polyamide epichlorohydrin compound |
| CN114703697A (en) * | 2022-04-28 | 2022-07-05 | 杭州众材科技股份有限公司 | Paper deacidification method adopting double-component aqueous deacidification agent |
| CN114934403A (en) * | 2022-05-18 | 2022-08-23 | 杭州众材科技股份有限公司 | Paper bacteriostatic deacidification agent, preparation method and application |
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| CN103276627A (en) * | 2013-05-28 | 2013-09-04 | 南京博物院 | Multifunctional nano compound treating fluid for protecting paper cultural relics and preparation method thereof |
| CN107326742A (en) * | 2017-07-23 | 2017-11-07 | 复旦大学 | A kind of depickling of paper fibre and reinforcement guard method |
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| CN102146267A (en) * | 2010-12-29 | 2011-08-10 | 刘舜强 | Paste for mounting ancient calligraphy and paintings and preparation method thereof |
| CN102242529A (en) * | 2011-04-28 | 2011-11-16 | 广东工业大学 | Pressurizing, atomizing and deacidifying device and method for pressurizing, atomizing and deacidifying by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109371754A (en) * | 2018-09-25 | 2019-02-22 | 首都博物馆 | A kind of paper sheet deacidification agent composition and the acid stripping method for being acidified paper |
| CN109371754B (en) * | 2018-09-25 | 2020-12-25 | 首都博物馆 | Paper deacidification agent composition and deacidification method for acidified paper |
| CN110552241A (en) * | 2019-07-12 | 2019-12-10 | 华南理工大学 | Method for deacidifying and enhancing acidified and aged paper documents by using sodium silicate or borax and polyamide epichlorohydrin compound |
| CN114703697A (en) * | 2022-04-28 | 2022-07-05 | 杭州众材科技股份有限公司 | Paper deacidification method adopting double-component aqueous deacidification agent |
| CN114934403A (en) * | 2022-05-18 | 2022-08-23 | 杭州众材科技股份有限公司 | Paper bacteriostatic deacidification agent, preparation method and application |
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|---|---|
| CN108360296B (en) | 2020-07-17 |
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