CN109371754A - A kind of paper sheet deacidification agent composition and the acid stripping method for being acidified paper - Google Patents
A kind of paper sheet deacidification agent composition and the acid stripping method for being acidified paper Download PDFInfo
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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
- 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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Abstract
This disclosure relates to the acid stripping method of a kind of paper sheet deacidification agent composition and acidification paper, the composition includes including alkaloid, soluble tetraborate and solvent, wherein, the alkaloid includes one of hyoscine, hyoscyamine, Norhyoscyamine and anisodamine or a variety of.With the alum in acidification paper complex reaction can occur for the paper sheet deacidification agent composition of the disclosure, it prevents aluminium ion from hydrolyzing and acid is precipitated, and alkali residual can be formed on paper, mitigate the after-souring of paper, it is little to texture of paper pattern influence of color, depickling enhances the folding strength and tensile strength of paper simultaneously, and the pH value of paper after depickling can effectively extend the paper service life of painting and calligraphy 7~8.5.
Description
Technical field
This disclosure relates to the acid stripping method of a kind of paper sheet deacidification agent composition and acidification paper；It is de- more particularly to a kind of paper
Acid stripping method of the sour agent composition to painting and calligraphy ancient books acidification paper.
Background technique
Painting and calligraphy are the carriers of culture and art, all kinds of comprehensive museums in the whole nation and civil have a large amount of collection.Painting and calligraphy are used
Paper is mostly hand-made paper, and traditional-handwork paper (rice paper, numb paper etc.) is writing material made of being interweaved as plant fiber.Although
Traditional-handwork paper uses alkaline paper-making method, joined the fillers such as limewash, calcium carbonate in the process of making, but in use
In order to improve paper water-resistance, usually prevent in the Jiao Fanshui of external coating alum and natural gum material composition in order to Writing-painting
Only ink droplet and pigment are dizzy scattered.Also alum is largely being used in addition, repairing in process in painting and calligraphy ancient books.Sulphur can be precipitated in alum hydrolysis
Acid leads to the hydrolytic cleavage of cellulose chain, and ancient book draws the serious yellowing of ontology, acidification, embrittlement, and one touching is broken when serious.The U.S.
The investigation result of Library of Congress is, in collection paper document, pH value accounts for 26% less than 4.0,91% is accounted for less than 6.0, greatly
3% is only accounted in 7.0.2004, China National Library's " collection paper document acidity and investigation and analysis for saving status " ground
Study carefully report display, collection Song Yuan rare book moderate and severe acidification ratio account for 70%, and the mean ph value of paper belongs to moderate acid 5.9
Change；Gentlier, wherein moderate and serious ratio account for 41% to the acidizing degree ratio Song Yuan rare book paper of Ming Dynasty's rare book paper, paper
Mean ph value 6.2, close to slight acidification；Qing Dynasty's rare book paper mainly uses bamboo paper, the acidizing degree ratio Song Yuanshan of paper
This is serious, and the average pH of paper belongs to moderate acidification 5.5；The paper of modern times revolutionary history document and famous person's manuscript
Acidification is serious, and mean ph value is respectively 4.8 and 5.1, is serious and close to severe acidification.It is reported that pH value of paper 5 hereinafter,
It can only at most save 200 years.PH value just needs to carry out depickling processing lower than 6.2.
As the trend risen year by year is presented with degradation in Time fleets past painting and calligraphy paper acidification.Paper acidification is one and holds
Continue continuous process, if cannot be effectively treated, paper can be a bit darkish in color, and mechanical strength reduces, becomes fragile, until damage.It is de-
Acid is the necessary means for delaying paper rotten, and eliminates or inhibit paper bulk acidification factor and can persistently resist subsequent acidification shadow
It rings, could really extend the service life of paper relics.Warm water cleaning method depickling is mostly used currently, drawing in restoration and protection in ancient book,
This method is very limited to ancient book picture acidizing effect is alleviated, and does not have the effect for delaying acidification.Paper deacidification is commonly inorganic
Alkali Ca (OH)2、Mg(HCO3)2The acid of paper surface can only be neutralized, cannot be penetrated deep into the complete depickling of fibrous inside, and is handled
The mechanical strength of paper reduces afterwards.Glycol amine, magnesium acetate/trichloro ethylene, Ba (OH)2The organic solvents depickling method toxicity such as/methanol
It is larger to have certain limitation using evidence.Ammonia, cyclohexylamine carbonate, morpholine, diethyl zinc etc. exist as alkaline gas depickling
The defects of spending high and operational hazards.
Summary of the invention
Purpose of this disclosure is to provide a kind of paper sheet deacidification agent composition and the acid stripping method of acidification paper, the composition energy
Enough paper service life for effectively extending painting and calligraphy ancient books.
To achieve the goals above, disclosure first aspect: providing a kind of paper sheet deacidification agent composition, and the composition includes
Alkaloid, soluble tetraborate and solvent, wherein the alkaloid include hyoscine, hyoscyamine, Norhyoscyamine and
One of anisodamine is a variety of.
Optionally, on the basis of the composition of 100 parts by weight, the content of the alkaloid is 0.015~0.03 weight
Part is measured, the content of the solubility tetraborate is 0.01~0.5 parts by weight, and the content of the solvent is 99.47~99.975
Parts by weight.
Optionally, on the basis of the composition of 100 parts by weight, the content of the alkaloid is 0.02~0.03 weight
Part, the content of the solubility tetraborate is 0.3~0.5 parts by weight, and the content of the solvent is 99.47~99.68 weight
Part.
Optionally, the alkaloid is hyoscine and hyoscyamine, and the weight ratio of the hyoscine and hyoscyamine is 1:
(1~2).
Optionally, the soluble tetraborate is in lithium tetraborate, sodium tetraborate, dipotassium tetraborate and calcium tetraborate
It is one or more.
Optionally, the partial size of the soluble tetraborate is 80~100 μm.
Optionally, the solvent be alcohol and water mixture, the alcohol be methanol, ethyl alcohol, isopropanol or n-butanol, it is described
The volume ratio of alcohol and water is 90:10~20:80.
Optionally, the pH value of the composition is 8~9.
Disclosure second aspect: a kind of acid stripping method for being acidified paper is provided, this method comprises: by disclosure first aspect
The paper sheet deacidification agent composition is sprayed at the surface of acidification paper, and the acidification paper is Modern Painting and Calligraphy paper, ancient book picture
With paper or literature of ancient book paper.
It optionally, is 1cm with area2The acidification paper on the basis of, the dosage of the paper sheet deacidification agent composition is
0.15~0.3mL.
Through the above technical solutions, the disclosure is combined using special alkaloid with soluble tetraborate, can obtain
Paper sheet deacidification agent composition with excellent deacidification effect can occur complex reaction with the alum in acidification paper, prevent aluminium
Ionized water parses acid, and alkali residual can be formed on paper, the after-souring of paper is mitigated, to texture of paper pattern color
It influences less, depickling enhances the folding strength and tensile strength of paper simultaneously, and the pH value of paper after depickling is 7~8.5.The disclosure
Paper sheet deacidification agent composition can effectively extend paper service life of painting and calligraphy, this has important meaning for the permanent preservation of painting and calligraphy
Justice.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is acidification paper through the SEM photograph before and after the deacidification agent compositions-treated of embodiment 1, and wherein A is at non-depickling
The rice paper of reason, B are depickling treated rice paper, and C is the rice paper for handling 30 days after depickling processing through hydrothermal aging.
Fig. 2 is the pH value test result for being acidified paper after the deacidification agent compositions-treated and hydrothermal aging of embodiment 1.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Disclosure first aspect: providing a kind of paper sheet deacidification agent composition, and the composition includes alkaloid, soluble four boron
Hydrochlorate and solvent, wherein the alkaloid includes one of hyoscine, hyoscyamine, Norhyoscyamine and anisodamine
Or it is a variety of.The disclosure does not have special limit to the source of the hyoscine, hyoscyamine, Norhyoscyamine and anisodamine
System, can be commercially available, and can also be prepared using method in the prior art or extraction obtains.
The disclosure is combined using special alkaloid with soluble tetraborate, can obtain having excellent deacidification effect
Paper sheet deacidification agent composition.
According to the disclosure, on the basis of the composition of 100 parts by weight, the content of the alkaloid can be 0.015
~0.03 parts by weight, the content of the solubility tetraborate can be 0.01~0.5 parts by weight, and the content of the solvent can be with
For 99.47~99.975 parts by weight.
In order to further increase the deacidification effect to acidification paper, under preferable case, with the composition of 100 parts by weight
On the basis of, the content of the alkaloid is 0.02~0.03 parts by weight, and the content of the solubility tetraborate is 0.3~0.5
Parts by weight, the content of the solvent are 99.47~99.68 parts by weight.
In a kind of preferred embodiment of the disclosure, the alkaloid can be hyoscine and hyoscyamine.Further
The weight ratio of ground, the hyoscine and hyoscyamine can be 1:(1~2), the paper sheet deacidification agent containing said combination alkaloid
The surface tension of composition is small, and permeability is strong, it is easier to enter paper fibre hole, play and neutralize paper free acid and mitigation
The effect of after-souring caused by atmosphere pollution etc..
According to the disclosure, the solubility tetraborate can be for selected from lithium tetraborate, sodium tetraborate, dipotassium tetraborate and four
One of line borate is a variety of.Preferably, the soluble tetraborate is lithium tetraborate, is conducive to the power for improving paper
Intensity is learned, the paper service life is extended.Further, the partial size of the soluble tetraborate can be 80~100 μm, in this way, micro-
The soluble tetraborate crystal of meter level is dissolvable in water in pure aquatic system and fully penetrated in paper with molecular forms, plays
Effect with paper middle acid substance simultaneously forms certain alkali residual.
According to the disclosure, the solvent is the solution that can dissolve the alkaloid and soluble tetraborate, such as described
Solvent can be the mixture of alcohol and water.Further, the alcohol can be methanol, ethyl alcohol, isopropanol or n-butanol, the alcohol
Volume ratio with water can be 90:10~20:80.
The paper sheet deacidification agent composition of the disclosure has suitable pH value, can form alkali residual on paper, mitigate
The after-souring of paper.Specifically, the pH value of the composition can be 8~9.
The alkaloid, soluble tetraborate and solvent are proportionally mixed to the paper that the disclosure can be obtained
Deacidification agent composition can be mixed to improve solute effect by way of ultrasonic oscillation.The deacidification agent group of the disclosure
Complex reaction can be occurred with the alum in acidification paper by closing object, prevent aluminium ion from hydrolyzing and acid is precipitated, and can be formed on paper
Alkali residual, mitigates the after-souring of paper, little to texture of paper pattern influence of color, depickling enhances the folding of paper simultaneously
Degree and tensile strength, the pH value of paper after depickling is 7~8.5.The deacidification agent composition of the disclosure can be used it is spraying, impregnate and
A variety of methods such as supercritical fluid carry out depickling processing to painting and calligraphy acidification paper.
Disclosure second aspect: a kind of acid stripping method for being acidified paper is provided, this method comprises: by disclosure first aspect
The paper sheet deacidification agent composition is sprayed at the surface of acidification paper.Wherein, the acidification paper can be used for Modern Painting and Calligraphy
Paper, ancient painting paper or literature of ancient book paper.
It is 1cm with area to reach ideal deacidification effect2The acidification paper on the basis of, the paper deacidification
The dosage of agent composition can be 0.15~0.3mL.The spraying can be carried out using mode well known to those skilled in the art,
The number of repetition of the spraying can be 3~6 times.
The acid stripping method process of the disclosure is easy to operate, has extensive promotional value.
The disclosure is further described by the following examples.
In embodiment, the hand-made paper sample used is purchased from Jingxian, anhui Red Star rice paper Co., Ltd for Red Star special net skin.It is bright
Advanced alum of the alum from Beijing Qi great Sen traditional Chinese Painting Materials Co., Ltd, gelatin come from Beijing Qi great Sen traditional Chinese Painting Materials Co., Ltd
Advanced gelatin.Hyoscine is purchased from Shanghai Yuan Ye Biotechnology Co., Ltd, purity 98%.Hyoscyamine is purchased from Shanghai specialization
Pharmaceutical Technology Co., Ltd, purity 98%.Norhyoscyamine is purchased from Shanghai Yu Bo Biotechnology Co., Ltd, and purity is
99%.Anisodamine is purchased from Xiamen Zhi Xin Chemical Co., Ltd., purity 99%.Other reagents are the commercially available pure production of analysis
Product.
Embodiment 1~12 is used to illustrate the paper sheet deacidification agent composition of the disclosure.
Embodiment 1
By 0.01 parts by weight hyoscine, 0.02 parts by weight hyoscyamine, 0.4 parts by weight lithium tetraborate (partial size be 80 μm) and
The ethanol water (50 volume % of ethanol content) of 99.57 parts by weight mixes, and is sufficiently stirred and quiet after ultrasonic oscillation 20min
It sets, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.74.
Embodiment 2
By 0.009 parts by weight hyoscine, 0.018 parts by weight hyoscyamine, 0.5 parts by weight lithium tetraborate, (partial size is 100 μ
M) it is mixed with the methanol aqueous solution of 99.473 parts by weight (60 volume % of ethanol content), simultaneously ultrasonic oscillation 20min is sufficiently stirred
After stand, obtain the paper sheet deacidification agent composition of the present embodiment, pH value 8.63.
Embodiment 3
By 0.01 parts by weight hyoscine, 0.01 parts by weight hyoscyamine, 0.3 parts by weight lithium tetraborate (partial size be 90 μm) and
The n-butanol aqueous solution (50 volume % of levels of n-butanol) of 99.68 parts by weight mixes, and is sufficiently stirred and after ultrasonic oscillation 20min
It stands, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.45.
Embodiment 4
By 0.005 parts by weight hyoscine, 0.01 parts by weight hyoscyamine, 0.04 parts by weight lithium tetraborate (partial size is 80 μm)
It mixes, is sufficiently stirred and after ultrasonic oscillation 20min with the ethanol water (50 volume % of ethanol content) of 99.945 parts by weight
It stands, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 7.67.
Embodiment 5
By 0.02 parts by weight hyoscine, 0.01 parts by weight hyoscyamine, 0.4 parts by weight lithium tetraborate (partial size be 80 μm) and
The ethanol water (50 volume % of ethanol content) of 99.57 parts by weight mixes, and is sufficiently stirred and quiet after ultrasonic oscillation 20min
It sets, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.26.
Embodiment 6
By 0.03 parts by weight hyoscine, the ethyl alcohol of 0.4 parts by weight lithium tetraborate (partial size is 80 μm) and 99.57 parts by weight
Aqueous solution (50 volume % of ethanol content) mixing, is sufficiently stirred and stands after ultrasonic oscillation 20min, obtain the paper of the present embodiment
Open deacidification agent composition, pH value 8.35.
Embodiment 7
By 0.03 parts by weight hyoscyamine, the ethanol water of 0.4 parts by weight lithium tetraborate (partial size is 80 μm) and 99.57 parts by weight
Solution (50 volume % of ethanol content) mixing, is sufficiently stirred and stands after ultrasonic oscillation 20min, obtain the paper of the present embodiment
Deacidification agent composition, pH value 8.46.
Embodiment 8
By 0.01 parts by weight hyoscine, 0.02 parts by weight Norhyoscyamine, 0.4 parts by weight lithium tetraborate, (partial size is
80 μm) and 99.57 parts by weight ethanol water (50 volume % of ethanol content) mixing, be sufficiently stirred and ultrasonic oscillation
It is stood after 20min, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.21.
Embodiment 9
By 0.01 parts by weight anisodamine, 0.02 parts by weight hyoscyamine, 0.4 parts by weight lithium tetraborate (partial size be 80 μm) and
The ethanol water (50 volume % of ethanol content) of 99.57 parts by weight mixes, and is sufficiently stirred and quiet after ultrasonic oscillation 20min
It sets, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.55.
Embodiment 10
By 0.01 parts by weight hyoscine, 0.02 parts by weight hyoscyamine, 0.4 parts by weight sodium tetraborate (partial size be 80 μm) and
The ethanol water (50 volume % of ethanol content) of 99.57 parts by weight mixes, and is sufficiently stirred and quiet after ultrasonic oscillation 20min
It sets, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.27.
Embodiment 11
By 0.003 parts by weight hyoscine, 0.006 parts by weight hyoscyamine, 0.3 parts by weight lithium tetraborate (partial size is 80 μm)
It mixes, is sufficiently stirred and after ultrasonic oscillation 20min with the ethanol water (50 volume % of ethanol content) of 99.691 parts by weight
It stands, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 7.85.
Embodiment 12
By 0.01 parts by weight hyoscine, 0.02 parts by weight hyoscyamine, 0.4 parts by weight lithium tetraborate (partial size is 200 μm)
It mixes, is sufficiently stirred and quiet after ultrasonic oscillation 20min with the ethanol water (50 volume % of ethanol content) of 99.57 parts by weight
It sets, obtains the paper sheet deacidification agent composition of the present embodiment, pH value 8.38.
Comparative example 1~2 is for illustrating the paper sheet deacidification agent composition different from the disclosure.
Comparative example 1
The deacidification agent composition of this comparative example is prepared according to the method for CN108360296A embodiment 1.
Comparative example 2
Deacidification agent composition is prepared according to the method for embodiment 1, and difference is, replaces east using the ephedrine of same amount
Hyoscyamine, and hyoscyamine is replaced using the hygrine of same amount, the deacidification agent composition of this comparative example is obtained, pH value is
7.88。
Testing example
Selection traditional-handwork rice paper is sample, and rice paper is parallel to the sample that curtain line direction is cut into 20mm × 150mm.It prepares
After 3 weight % gelatin and 3 weight % alum are mixed with weight ratio 1:1, is uniformly brushed, reciprocal three times, be prepared using row brush
PH value is acidified paper in 5.0 or so simulation Chinese tradition painting and calligraphy.
By the paper sheet deacidification agent composition even application of embodiment and comparative example in the surface of acidification paper, it is with area
1cm2Acidification paper on the basis of, the dosage of composition is 0.15mL, repeats spraying 3 times, dries rear spare.
Hydrothermal aging experiment is carried out to paper, " paper and cardboard accelerated ageing are at 80 DEG C referring to national standard GB/T 22894-2008
With humid heat treatment under 65% relative humidities ".
Acidification paper is observed through the microcosmic shape before and after the deacidification agent compositions-treated of embodiment 1 using scanning electron microscope (SEM)
The inorganic salts crystal morphology deposited between looks and fiber, the result is shown in Figure 1.Wherein, lump shaped crystalline particle is in deacidification agent composition
Micron-sized soluble tetraborate.As it can be seen that soluble tetraborate crystal warp can be evenly dispersed in paper, neutralization is played
The effect of paper middle acid substance simultaneously has certain alkali residual.After hydrothermal aging 30 days, still there is a large amount of storage alkali deposition
In on rice paper, there is certain positive effect to the further acidification for preventing paper.
It sampled in degradation every 7 days, is tested using Italian Hana HI9025 Portable plane electrode acidometer
The pH value of the acidification paper of deacidification agent compositions-treated through embodiment 1, test result are shown in Fig. 2.As it can be seen that rice paper after depickling processing
PH value be 7.83, alkalinity it is moderate, meet the optimal pH range (7.0~8.5) of paper deacidification requirement.And with ageing time
Extension, pH value of paper is more stable, significant downward trend does not occur.
The YT-N-135 model MIT folding tester produced using Hangzhou Yan Te Science and Technology Ltd., according to GB/
T2679.5-2002 method tests depickling treated folding strength of the paper after hydrothermal aging 28 days, using Britain Stable
Tensile strength of the TA.XT Plus Texture instrument test paper of Micro System company production after hydrothermal aging 28 days, control
Example is the acidification paper for not spraying deacidification agent composition, as a result table 1.
Table 1
| Embodiment | Folding strength/number | Tensile strength/N |
| Embodiment 1 | 14 | 32.85986 |
| Embodiment 2 | 14 | 31.98796 |
| Embodiment 3 | 13 | 30.85974 |
| Embodiment 4 | 8 | 28.25302 |
| Embodiment 5 | 11 | 30.22006 |
| Embodiment 6 | 12 | 29.92316 |
| Embodiment 7 | 10 | 26.25764 |
| Embodiment 8 | 10 | 27.43626 |
| Embodiment 9 | 11 | 26.36522 |
| Embodiment 10 | 10 | 27.22216 |
| Embodiment 11 | 8 | 24.15642 |
| Embodiment 12 | 10 | 23.25674 |
| Comparative example 1 | 5 | 18.28948 |
| Comparative example 2 | 6 | 17.98796 |
| Reference examples | 2 | 10.7856 |
Seen from table 1, carried out using the paper sheet deacidification agent composition of the disclosure folding strength of depickling treated paper with
Tensile strength obviously increases, illustrate the paper sheet deacidification agent composition of the disclosure be conducive to improve paper folding strength and anti-tensile it is strong
Degree is obviously promoted effect to the mechanical property promotion of paper, can delay the further acidification of paper, be conducive to the length of paper
Phase saves.
Become using paper color value after the SP64 model spectrophotometric color measurement instrument test depickling processing of X. Rite Inc. of U.S. production
Change, calculates value of chromatism of the paper after hydrothermal aging 28 days, reference examples are the acidification paper for not spraying deacidification agent composition, as a result
It is shown in Table 2.
Table 2
| Embodiment | ΔE |
| Embodiment 1 | 2.63 |
| Embodiment 2 | 1.12 |
| Embodiment 3 | 1.15 |
| Embodiment 4 | 0.96 |
| Embodiment 5 | 2.81 |
| Embodiment 6 | 1.96 |
| Embodiment 7 | 2.26 |
| Embodiment 8 | 2.48 |
| Embodiment 9 | 2.15 |
| Embodiment 10 | 2.64 |
| Embodiment 11 | 2.05 |
| Embodiment 12 | 1.92 |
| Comparative example 1 | 4.06 |
| Comparative example 2 | 6.44 |
| Reference examples | 7.96 |
As can be seen from Table 2, the paper discoloration in Heat Ageing of acidification paper is serious, and the deacidification agent of the disclosure is used to combine
Color difference before and after the processed acidification paper aging of object is respectively less than 3.0, and it is small to illustrate that the composition of the disclosure influences paper appearance,
Suitable for paper deacidification.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (10)
1. a kind of paper sheet deacidification agent composition, which is characterized in that the composition includes alkaloid, soluble tetraborate and molten
Agent, wherein the alkaloid includes one of hyoscine, hyoscyamine, Norhyoscyamine and anisodamine or a variety of.
2. composition according to claim 1, wherein on the basis of the composition of 100 parts by weight, the alkaloid
Content be 0.015~0.03 parts by weight, it is described solubility tetraborate content be 0.01~0.5 parts by weight, the solvent
Content be 99.47~99.975 parts by weight.
3. composition according to claim 2, wherein on the basis of the composition of 100 parts by weight, the alkaloid
Content be 0.02~0.03 parts by weight, it is described solubility tetraborate content be 0.3~0.5 parts by weight, the solvent
Content is 99.47~99.68 parts by weight.
4. composition according to any one of claims 1 to 3, wherein the alkaloid is hyoscine and henbane
The weight ratio of alkali, the hyoscine and hyoscyamine is 1:(1~2).
5. composition according to any one of claims 1 to 3, wherein the solubility tetraborate is selected from four
One of lithium borate, sodium tetraborate, dipotassium tetraborate and calcium tetraborate are a variety of.
6. composition according to any one of claims 1 to 3, wherein it is described solubility tetraborate partial size be
80~100 μm.
7. composition according to any one of claims 1 to 3, wherein the solvent is the mixture of alcohol and water, institute
Stating alcohol is methanol, ethyl alcohol, isopropanol or n-butanol, and the volume ratio of the alcohol and water is 90:10~20:80.
8. composition according to any one of claims 1 to 3, wherein the pH value of the composition is 8~9.
9. a kind of acid stripping method for being acidified paper, which is characterized in that this method comprises: by any one of claim 1~8 institute
The paper sheet deacidification agent composition stated is sprayed at the surface of acidification paper, and the acidification paper is Modern Painting and Calligraphy paper, ancient book picture use
Paper or literature of ancient book paper.
10. according to the method described in claim 9, being 1cm with area wherein2The acidification paper on the basis of, the paper
The dosage of deacidification agent composition is 0.15~0.3mL.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106742A (en) * | 2019-05-30 | 2019-08-09 | 复旦大学 | A kind of slow-release alkaline molecular sieve deacidification agent and the preparation method and application thereof |
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| CN102268842A (en) * | 2011-07-28 | 2011-12-07 | 广东工业大学 | Method for deacidifying paper by using soluble tetraborate as paper deacidifying agent |
| US20140356542A1 (en) * | 2013-05-29 | 2014-12-04 | Richard Daniel Smith | Deacidification Treatments Of Printed Cellulosic Materials |
| CN108166316A (en) * | 2017-12-04 | 2018-06-15 | 黄旭东 | A kind of paper document depickling bracing means |
| CN108360296A (en) * | 2018-03-06 | 2018-08-03 | 杭州众材科技有限公司 | A kind of paper sheet deacidification agent and its preparation method and application |
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| CN110106742A (en) * | 2019-05-30 | 2019-08-09 | 复旦大学 | A kind of slow-release alkaline molecular sieve deacidification agent and the preparation method and application thereof |
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