CN102391916A - Application of alcohol compound in cleaning of triphenyl phosphate on surface of cinefilm - Google Patents
Application of alcohol compound in cleaning of triphenyl phosphate on surface of cinefilm Download PDFInfo
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- CN102391916A CN102391916A CN2011103669396A CN201110366939A CN102391916A CN 102391916 A CN102391916 A CN 102391916A CN 2011103669396 A CN2011103669396 A CN 2011103669396A CN 201110366939 A CN201110366939 A CN 201110366939A CN 102391916 A CN102391916 A CN 102391916A
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- cinefilm
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Abstract
The invention relates to an application of an alcohol compound in cleaning of triphenyl phosphate precipitated on the surface of a cellulose acetate ester cinefilm, n-butanol or isobutanol is taken as a cleaning agent for cleaning the white crystal triphenyl phosphate precipitated on the surface of the cellulose acetate ester cinefilm with vinegar syndrome, and testing result proves that the triphenyl phosphate is easy to be dissolved in the n-butanol and the isobutanol, the cleaning effect is good, the consumption amount of the cleaning agent is low, the damages to the film can be avoided, the residue of the cleaning agent on the cinefilm can be further prevented, and the n-butanol or the isobutanol can be used for cleaning the white crystal triphenyl phosphate precipitated on the surface of the cellulose acetate ester cinefilm with the vinegar syndrome.
Description
Technical field
The invention belongs to archives conservation and recovery technique field, be specifically related to the cleaning that triphenylphosphate is separated out on acetyl cellulose cinefilm surface.
Background technology
Cinefilm is the important carrier of important archives material, art, culture, is one type of important historical cultural heritage.The acetyl cellulose cinefilm is one type of more cinefilm of collection, receives self constituent material and the influence of preserving envrionment conditions, the acetyl cellulose cinefilm be prone to go mouldy, disease such as acetic acid syndrome.Wherein acetic acid syndrome is the disease phenomenon of serious harm acetyl cellulose cinefilm safety; Mainly show as film and give out pungent acetic acid smell; A large amount of white crystals is separated out on the film surface, the film torsional deformation, and the liquefaction of severe patient film emulsion layer comes off until self-destruction.
The white crystal that acetic acid syndrome acetyl cellulose cinefilm is separated out taking place, be attached to the film surface, on the image of cinefilm record, produce additional image during projection, make that its fuzzy pictures is unclear, has a strong impact on the sight and the integrity of picture.Being attached near the white crystal of cinefilm vocal cords can influence the correct deciphering that cinefilm is put down in writing sound, makes cinefilm record audio distortions or is attended by a large amount of noises.Through analysis and characterization, the white crystal that separate out on its surface after the acetyl cellulose cinefilm generation acetic acid syndrome is the softening agent triphenylphosphate of cinefilm plate substrate material.Therefore, it is to repair the first step that acetic acid syndrome acetyl cellulose cinefilm takes place that cleaning and removing is removed the white crystal of separating out on acetyl cellulose cinefilm surface, also is a crucial step.
According to document announcement, the organic solvent that is used for the cinefilm cleaning in early days mainly contains: 1,1,1,2-three chloro-1,2,2-HFC-143a (being commonly called as F-11 3), vinyl trichloride etc.These organic solvents have good dissolving power, and the sheet basic unit and the emulsion layer of film do not had destruction yet, once are widely used as the clean-out system of cinefilm.But these several kinds of organic solvents all have certain toxicity, and are bigger to the pollution of environment, so the secretory product that uses these several kinds of organic solvents to clean on the acidolysis cinefilm is unfavorable for large-area promoting the use of.Also there is report to adopt water to make solvent in recent years; Method through adding tensio-active agent is cleaned film; But this method only is applicable to the acetyl cellulose cinefilm that acidolysis does not take place; For the acetyl cellulose cinefilm that acetic acid syndrome takes place, this method can cause emulsion layer to come off or make the cinefilm whiting.
Therefore; Press for a kind of clean-out system that the triphenylphosphate cleaning is separated out on acetic acid syndrome acetyl cellulose cinefilm surface that is used for taking place at present; This clean-out system must have dissolving power preferably to triphenylphosphate, and the toxicity of clean-out system is low, contaminative is little, can be not residual on film after the cleaning; And can not produce destruction by Dichlorodiphenyl Acetate cellulose ester cinefilm after cleaning, phenomenon such as for example can not make that cinefilm takes place to curl, distortion, emulsion layer come off.
Summary of the invention
Technical problem to be solved by this invention is to overcome the shortcoming that the used clean-out system of above-mentioned acetic acid syndrome acetyl cellulose cinefilm exists, for alcohol compound provides a kind of new purposes.
Solving the problems of the technologies described above the technical scheme that is adopted is: alcohol compound is separated out the purposes in the triphenylphosphate on cleaning acetic acid syndrome acetyl cellulose cinefilm surface.
Above-mentioned alcohol compound is propyl carbinol or isopropylcarbinol.
The method that triphenylphosphate is separated out on employing propyl carbinol or isopropylcarbinol cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface is following:
Dip in absorbent cotton and to get the white crystal triphenylphosphate that separate out on propyl carbinol or isopropylcarbinol wiping generation acetic acid syndrome acetyl cellulose cinefilm surface, till triphenylphosphate has been wiped; Acetic acid syndrome acetyl cellulose cinefilm perhaps will take place in propyl carbinol or isopropylcarbinol, soak 1～3 minute, the white crystal triphenylphosphate that separate out on dissolving cinefilm surface.
The present invention is a clean-out system with propyl carbinol or isopropylcarbinol; Clean the white crystal triphenylphosphate that separate out on acetic acid syndrome acetyl cellulose cinefilm surface takes place; Test-results shows; Triphenylphosphate is soluble in propyl carbinol and isopropylcarbinol, and cleaning performance is good, the clean-out system consumption is low, can not damage cinefilm; And clean-out system can not remain on the cinefilm, and propyl carbinol or isopropylcarbinol can be used for cleaning the white crystal triphenylphosphate that separate out on generation acetic acid syndrome acetyl cellulose cinefilm surface.
Description of drawings
Fig. 1 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Fig. 2 adopts the propyl carbinol wiping to clean the image after triphenylphosphate is separated out on Fig. 1 cinefilm surface.
Fig. 3 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Fig. 4 soaks the image that cleaned in 1 minute after triphenylphosphate is separated out on Fig. 3 cinefilm surface with propyl carbinol.
Fig. 5 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Fig. 6 soaks the image that cleaned in 2 minutes after triphenylphosphate is separated out on Fig. 5 cinefilm surface with propyl carbinol.
Fig. 7 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Fig. 8 soaks the image that cleaned in 2 minutes after triphenylphosphate is separated out on Fig. 7 cinefilm surface with propyl carbinol.
Fig. 9 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Figure 10 cleans the image after triphenylphosphate is separated out on Fig. 9 cinefilm surface with the isopropylcarbinol wiping.
Figure 11 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Figure 12 soaks the image that cleaned in 1 minute after triphenylphosphate is separated out on Figure 11 cinefilm surface with isopropylcarbinol.
Figure 13 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Figure 14 soaks the image that cleaned in 2 minutes after triphenylphosphate is separated out on Figure 13 cinefilm surface with isopropylcarbinol.
Figure 15 is the image that takes place after triphenylphosphate is separated out on acetic acid syndrome acetyl cellulose cinefilm surface.
Figure 16 soaks the image that cleaned in 3 minutes after triphenylphosphate is separated out on Fig. 5 cinefilm surface with propyl carbinol.
Embodiment
To further explain of the present invention, but the invention is not restricted to these embodiment below in conjunction with accompanying drawing and embodiment.
Embodiment 1
Propyl carbinol in cleaning acetic acid syndrome acetyl cellulose cinefilm surface takes place separates out the purposes in the triphenylphosphate.Its method of use is following:
Clamp absorbent cotton with tweezers and dip in and get propyl carbinol, the white crystal triphenylphosphate that separate out on the acetyl cellulose cinefilm surface of wiping generation acetic acid syndrome is till triphenylphosphate has been wiped.Image before cleaning is seen Fig. 1, and the triphenylphosphate crystal that the black splotch at light position is separated out for the cinefilm surface on the image stops when projection that light sees through and forms.Image effect after the cleaning is seen Fig. 2.Visible by Fig. 1, Fig. 2; Adopt propyl carbinol after triphenylphosphate is separated out on cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface; The black splotch that the white triphenylphosphate crystal that separate out on the cinefilm surface behind the generation acetic acid syndrome produces on image disappears, and image definition improves.
Embodiment 2
Propyl carbinol in cleaning acetic acid syndrome acetyl cellulose cinefilm surface takes place separates out the purposes in the triphenylphosphate.Its method of use is following:
The cinefilm that acetic acid syndrome takes place is soaked in the glassware that fills propyl carbinol, soaked 1 minute, the white crystal triphenylphosphate that separate out on dissolving cinefilm surface takes out, and places stink cupboard air-dry.Image before cleaning is seen Fig. 3, and the triphenylphosphate crystal that the black splotch at light position is separated out for the cinefilm surface on the image stops when projection that light sees through and form that the image effect after the cleaning is seen Fig. 4.Visible by Fig. 3, Fig. 4; Adopt propyl carbinol after triphenylphosphate is separated out on cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface; The black splotch that the white triphenylphosphate crystal that separate out on the cinefilm surface behind the generation acetic acid syndrome produces on image disappears, and image definition improves.
Embodiment 3
Propyl carbinol in cleaning acetic acid syndrome acetyl cellulose cinefilm surface takes place separates out the purposes in the triphenylphosphate.Its method of use is following:
The acetyl cellulose cinefilm that acetic acid syndrome takes place is soaked in the glassware that fills propyl carbinol; Soaked 2 minutes; The white crystal triphenylphosphate that separate out on dissolving cinefilm surface takes out, and places stink cupboard air-dry; Image before cleaning is seen Fig. 5, and the triphenylphosphate crystal that the black splotch at light position is separated out for the cinefilm surface on the image stops when projection that light sees through and forms.Image effect after the cleaning is seen Fig. 6.Visible by Fig. 5, Fig. 6; Adopt propyl carbinol after triphenylphosphate is separated out on cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface; The black splotch that the white triphenylphosphate crystal that separate out on the cinefilm surface behind the generation acetic acid syndrome produces on image disappears, and image definition improves.
Embodiment 4
Propyl carbinol in cleaning acetic acid syndrome acetyl cellulose cinefilm surface takes place separates out the purposes in the triphenylphosphate.Its method of use is following:
The acetyl cellulose cinefilm that acetic acid syndrome takes place is soaked in the glassware that fills propyl carbinol; Soaked 3 minutes; The white crystal triphenylphosphate that separate out on dissolving cinefilm surface takes out, and places stink cupboard air-dry; Image before cleaning is seen Fig. 7, and the triphenylphosphate crystal that the black splotch at light position is separated out for the cinefilm surface on the image stops when projection that light sees through and forms.Image effect after the cleaning is seen Fig. 8.Visible by Fig. 7, Fig. 8; Adopt propyl carbinol after triphenylphosphate is separated out on cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface; The black splotch that the white triphenylphosphate crystal that separate out on the cinefilm surface behind the generation acetic acid syndrome produces on image disappears, and image definition improves.
Embodiment 5
Isopropylcarbinol in cleaning acetic acid syndrome acetyl cellulose cinefilm surface takes place separates out the purposes in the triphenylphosphate.Its method of use is following:
In embodiment 1～4, used propyl carbinol is replaced with isopropylcarbinol, and other steps are identical with corresponding embodiment.
Image after adopting isopropylcarbinol to clean preceding image and clean is seen Fig. 9～Figure 16.Visible by Fig. 9～Figure 16; Adopt isopropylcarbinol after triphenylphosphate is separated out on cleaning generation acetic acid syndrome acetyl cellulose cinefilm surface; The black splotch that the white triphenylphosphate crystal that separate out on the cinefilm surface behind the generation acetic acid syndrome produces on image disappears, and image definition improves.
In order to prove beneficial effect of the present invention, the contriver has carried out a large amount of laboratory study tests, and various test situation are following:
Experiment material: the acetyl cellulose cinefilm (surface has a large amount of white crystals to separate out) of acetic acid syndrome takes place, provide by China Film Archive's Xi'an movie database; Propyl carbinol, isopropylcarbinol are analytical pure, and triphenylphosphate is a CP, commercially available industrial goods.
Laboratory apparatus: J-KZ100 type pendulum tensile testing machine, the Changjiang river, Sichuan papermaking instrument Ltd produces; DC-MIT1358B type computer observing and controlling folding endurance appearance Sichuan the Changjiang river papermaking instrument Ltd produces; Paper knife, the FG-QZD15 scudding knife, the Changjiang river, Sichuan papermaking instrument Ltd produces; SDJ6025 type damp heat test box, Chongqing Yinhe Experimental Equipment Co., Ltd. produces.
1, the solvability of triphenylphosphate in propyl carbinol, isopropylcarbinol
Room temperature is got 10mL propyl carbinol, 10mL isopropylcarbinol respectively, to wherein adding triphenylphosphate, till triphenylphosphate does not dissolve, obtains the triphenylphosphate saturated solution.Take by weighing the quality m1 of weighing bottle, get 5.00g triphenylphosphate saturated solution and add in the weighing bottle, with weighing bottle as in the stink cupboard; Open stink cupboard; After treating that solvent evaporates is intact, till the quality of weighing bottle no longer changes, take by weighing its quality m2; Calculate the solubleness of triphenylphosphate in propyl carbinol and isopropylcarbinol respectively, calculation formula is following:
S is a solubleness in the formula.Calculation result is seen table 1.
The solubleness of table 1 room temperature triphenylphosphate in propyl carbinol, isopropylcarbinol
| Solvent | m1 | m2 | Solubleness |
| Propyl carbinol | 15.82g | 18.48g | 113.68g/100g |
| Isopropylcarbinol | 16.11g | 18.28g | 76.68g/100g |
Visible by table 1, the solubleness of triphenylphosphate in propyl carbinol, isopropylcarbinol is all bigger under the room temperature, explains that triphenylphosphate is soluble in propyl carbinol and isopropylcarbinol under the room temperature.
2, acetic acid syndrome acetyl cellulose cinefilm soaks front and back in clean-out system variation takes place
The acetyl cellulose cinefilm that acetic acid syndrome takes place is cut 2 sections on the film that length is 1m, and the triphenylphosphate of the cinefilm surface being separated out with propyl carbinol cleans up, and dry; Take by weighing it and soak preceding quality; Then it was respectively soaked in propyl carbinol, isopropylcarbinol 30 minutes respectively, take out the back and in stink cupboard, placed 10 minutes, observe the changing conditions of cinefilm state; Take by weighing its quality after soaking after the clean-out system of treating the film surface adsorption is evaporated completely, test-results is seen table 2.
The change of state of table 2 acetyl cellulose cinefilm after the medium-term and long-term immersion of solvent
| Clean-out system | The film change of state | Quality/g before soaking | Soak back quality/g | Δm/g |
| Propyl carbinol | The film apparent condition does not have considerable change | 6.18 | 6.18 | 0 |
| Isopropylcarbinol | The film apparent condition does not have considerable change | 6.21 | 6.20 | -0.01 |
Visible by table 2, the acetyl cellulose cinefilm that acetic acid syndrome takes place was respectively soaked in propyl carbinol, isopropylcarbinol 30 minutes respectively, treat that surface solvent is evaporated completely back film state and does not have considerable change, the quality of cinefilm does not have obvious change yet.Explain that adopting propyl carbinol, isopropylcarbinol to soak the acetyl cellulose cinefilm that acetic acid syndrome takes place can not damage it, and clean-out system can be not residual on film.
3, clean-out system cleans acetic acid syndrome acetyl cellulose cinefilm surface and separates out the effect of white crystal
Dip in respectively with absorbent cotton and to get propyl carbinol, isopropylcarbinol, respectively the wiping generation acetic acid syndrome acetyl cellulose cinefilm surface white crystal triphenylphosphate of separating out and observe cleaning performance.Test-results is seen table 3.
The character of table 3 clean-out system and cleaning performance thereof
| Clean-out system | Flash-point/℃ | Cleaning performance |
| Propyl carbinol | 35 | Cleaning performance is better, and solvent-oil ratio is little |
| Isopropylcarbinol | 27 | Cleaning performance is better, and solvent-oil ratio is little |
Visible by table 3, be that clean-out system cleans the white crystal triphenylphosphate that separate out on generation acetic acid syndrome acetyl cellulose cinefilm surface with propyl carbinol, isopropylcarbinol, cleaning performance is all better, and the clean-out system consumption is low, and flash-point is higher, and security is higher relatively.
4, physical strength before and after acetic acid syndrome acetyl cellulose cinefilm soaks in clean-out system
(1) chooses three kinds of different generation acetic acid syndrome acetyl cellulose cinefilms of rolling up arbitrarily; Respectively cut 3m (being numbered No. 1, No. 2, No. 3), roll up respectively, in propyl carbinol, soaked 30 minutes respectively; Taking-up is placed in the stink cupboard, and the back taking-up is for use fully to treat its surface solvent volatilization; Get above-mentioned identical generation acetic acid syndrome acetyl cellulose cinefilm again, respectively cut 3m, in isopropylcarbinol, soaked 30 minutes respectively, taking-up is placed in the stink cupboard, treats to take out after acetyl cellulose cinefilm surface solvent volatilizees fully for use.
(2) the acetyl cellulose cinefilm that step (1) was soaked in propyl carbinol, the acetyl cellulose cinefilm that in isopropylcarbinol, soaked and unsoaked be that 23 ± 3 ℃, relative humidity are balance 24 hours under 60% the condition with the volume cinefilm in temperature; Sampling requirement sample preparation according to following tensile strength, folding endurance; And test, test result is seen table 4.
Tensile strength is measured: temperature be 23 ± 3 ℃, relative humidity greater than 50% condition under; Cinefilm to be measured is cut into the sample of 150mm * 5mm size with paper knife; Use the tension stress of J-KZ100 type pendulum tensile testing machine working sample, 10 samples of every group of sample replicate(determination) are averaged; Obtain the average tension stress of sample, according to the tensile strength of computes sample:
S is that tensile strength, unit are kN/m in the formula; F is that average tension stress, unit are N; Lw is that width, the unit of sample is m.
Folding test: temperature be 23 ± 3 ℃, relative humidity greater than 50% condition under, with paper knife cinefilm to be measured is cut into the sample of 150mm * 15mm size, use DC-MIT1358B type computer observing and controlling folding endurance appearance; At folding tension force is under the condition of 4.9N; The folding endurance of working sample, 10 of every group of sample replicate(determination)s, the two-fold number of times of record sample; Average, get the folding endurance of sample.
Physical strength before and after table 4 acetyl cellulose cinefilm soaks in clean-out system
Visible by table 4; After the acetyl cellulose cinefilm soaks in propyl carbinol, isopropylcarbinol; Its tensile strength and folding endurance do not change; Explain that the acetyl cellulose cinefilm soaks its physical strength of back and can not change in propyl carbinol, isopropylcarbinol, promptly propyl carbinol and isopropylcarbinol can not produce destruction by Dichlorodiphenyl Acetate cellulose ester cinefilm.
5, acetic acid syndrome acetyl cellulose cinefilm soaks the physical strength of aging front and back, back in clean-out system
(1) will be cut into length with the acetyl cellulose cinefilm that curly hair is given birth to acetic acid syndrome is a section of 6m, rolls up, and in propyl carbinol, soaks 30 minutes, takes out to be placed in the stink cupboard, treats that its surface solvent volatilization takes out for use in the back fully; Get equal length again and give birth to the acetyl cellulose cinefilm of acetic acid syndrome with perming, roll up, immersion is 30 minutes in isopropylcarbinol, takes out to be placed in the stink cupboard, treats that its surface solvent volatilization complete back taking-up is for use.
(2) adopt SDJ6025 type damp heat test box; The acetyl cellulose cinefilm that will in propyl carbinol, soak, the acetyl cellulose cinefilm that in isopropylcarbinol, soaked and unsoaked with the volume cinefilm; In temperature is that 80 ℃, relative humidity are under 90% condition; Aging 5 days, 10 days respectively; Is that 23 ± 3 ℃, relative humidity are balance 24 hours under 60% the condition with the acetyl cellulose cinefilm after aging in temperature, and according to method tested for tensile strength and folding endurance in the experiment 3, test result is seen table 5 then.
Table 5 acetyl cellulose cinefilm soaks the physical strength of aging front and back, back in clean-out system
Visible by table 5; After the acetyl cellulose cinefilm of generation acetic acid syndrome soaks in propyl carbinol, isopropylcarbinol; And through hydrothermal aging; Compare with not soaking the cinefilm directly carry out hydrothermal aging, its tensile strength, folding endurance all do not change, and explain that the acetyl cellulose cinefilm soaks after 30 minutes can not destroy its weather resistance in propyl carbinol, isopropylcarbinol.
Claims (1)
1. alcohol compound is separated out the purposes in the triphenylphosphate on cleaning acetic acid syndrome acetyl cellulose cinefilm surface;
Above-mentioned alcohol compound is propyl carbinol or isopropylcarbinol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110366939 CN102391916B (en) | 2011-11-17 | 2011-11-17 | Application of alcohol compound in cleaning of triphenyl phosphate on surface of cinefilm |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110366939 CN102391916B (en) | 2011-11-17 | 2011-11-17 | Application of alcohol compound in cleaning of triphenyl phosphate on surface of cinefilm |
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| CN102391916A true CN102391916A (en) | 2012-03-28 |
| CN102391916B CN102391916B (en) | 2012-12-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773152A (en) * | 2014-01-07 | 2014-05-07 | 陕西师范大学 | Cellulose acetate filmstrip protective agent |
| CN106027883A (en) * | 2016-05-17 | 2016-10-12 | 陕西师范大学 | Acquiring method for image information recorded by photographic silver salt black-and-white photograph with polluted and damaged surface |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619182A (en) * | 2009-07-28 | 2010-01-06 | 陕西师范大学 | Scratch repairing agent of cinematographic film |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619182A (en) * | 2009-07-28 | 2010-01-06 | 陕西师范大学 | Scratch repairing agent of cinematographic film |
Non-Patent Citations (1)
| Title |
|---|
| 刘俊燕: "浅谈资料影片的修护技术", 《现代电影技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773152A (en) * | 2014-01-07 | 2014-05-07 | 陕西师范大学 | Cellulose acetate filmstrip protective agent |
| CN103773152B (en) * | 2014-01-07 | 2015-03-25 | 陕西师范大学 | Cellulose acetate filmstrip protective agent |
| CN106027883A (en) * | 2016-05-17 | 2016-10-12 | 陕西师范大学 | Acquiring method for image information recorded by photographic silver salt black-and-white photograph with polluted and damaged surface |
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| CN102391916B (en) | 2012-12-05 |
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