CN101393135A - Paper ph detection pen and detection method thereof - Google Patents
Paper ph detection pen and detection method thereof Download PDFInfo
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- CN101393135A CN101393135A CNA2008102264244A CN200810226424A CN101393135A CN 101393135 A CN101393135 A CN 101393135A CN A2008102264244 A CNA2008102264244 A CN A2008102264244A CN 200810226424 A CN200810226424 A CN 200810226424A CN 101393135 A CN101393135 A CN 101393135A
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Abstract
The invention provides a pen for detecting the pH value of paper and a detection method thereof. The detection pen comprises a hollow pen rod, a pen head, a wrapped core and a rear cover, wherein the pen head is inserted into the wrapped core in a cavity of the hollow pen rod from the front end of the hollow pen rod, and is clamped on the front end of the hollow pen rod; the rear cover is plugged into the rear of the hollow pen rod; an acid-base indicator solution is absorbed and filled into the wrapped core; and the outerwall of the hollow pen rod is provided with a colorimetric card and a pen cap for preventing the solution from air drying. The detection pen is convenient to operate and carry, has quick detection speed and small volume, and is suitable to be used in fieldwork.
Description
Technical field
The present invention relates to a kind of potential of hydrogen detecting instrument and detection method thereof, be specifically related to a kind of instrument and detection method thereof that paper ph detects that be used for.
Background technology
Papery historical relic kind in the papery historical relic's protection research is a lot, comprises books, calligraphy and painting, contract etc.Usually, the protection difficulty of papery historical relic is very big, and damaging except that easily going rotten because of damaging by worms, fiber also can be subjected to the effect of light, heat, harmful gas to cause degraded in the paper, paper is turned to be yellow become fragile, strength degradation, finally causes efflorescence.So the ancient books of many preciousnesses, ancient character are drawn, ancient Chinese prose is offered because of protecting and scattered and disappear.
The plain molecule of paper fiber is vulnerable to multiple factor effects such as light, oxygen, water, mould, metallic ion, bronsted lowry acids and bases bronsted lowry, and degradation reaction takes place.When above-mentioned factor existed simultaneously, the extent of injury simply added anything but and concerns, and had a kind of synergy.The effect of various factors can be mutually promoted, and the extent of injury is multiplied.For example, Suan existence can make to go mouldy and speed up metal cations Fe
2+, Cu
2+Existence, make photooxidative degradation and acid degradation the reaction easier generation.In order to carry out papery historical relic's protection research work, to understand cellulosic degradation process on the one hand.Also to improve the mensuration and the appraisal procedure of paper palliating degradation degree on the other hand.The index that often needs to measure has: 1. paper ph is measured.2. the mensuration of paper machinery degree.3. the degree of polymerization is measured
The size of potential of hydrogen can be represented with the pH value during wherein paper ph was measured, and acidity o'clock is represented in pH value＜7, and the more little acidity of pH value is high more, when paper acidity is high, illustrates that the trend of fiber degradation is strong in the paper, and is unfavorable to paper.And the pH of long life paper is usually at 8-10.If can measure the pH value of paper, promptly can judge the aging conditions of paper.The pH value of measuring paper preferably adopts nondestructive determination, and the acidity that can measure paper like this can not cause damage to historical relic again.
PH test paper that testing laboratory is commonly used and pH meter measure acidity and alkalinity and paper need be soaked a spot of solution of back formation, the potential of hydrogen of solution detected just can obtain the paper ph value, this detection method not only the program complexity, the operation loaded down with trivial details, and very easily papery historical relic itself is formed damage, cause irreparable damage.Though have with the indicator wiring solution-forming, brush the method for on paper, judging paper ph by colour developing with writing brush, but each detection still need now be joined solution, proofreaies and correct the pairing pH value of colour developing result with the standard test paper, not formation be convenient for carrying, easy to operate appliance.
Summary of the invention
In view of this, in order to solve existing paper ph detection method program complexity, the loaded down with trivial details problem of operation.The invention provides a kind of easy to operately, save manpower, time, and portable paper ph detecting pen.
Second purpose of the present invention is to provide the detection method of this paper ph detecting pen.
Paper ph detecting pen of the present invention, comprise the gradually thin hollow of a front end pole, nib, rolled core and bonnet, described nib is a column, the rear end diameter is less than front end, the nib rear end is in a described hollow pole front end is inserted into rolled core the described hollow pole cavity, and be stuck in the front end of a described hollow pole, described back capping plug is in a hollow pole rear end, inhale in the described rolled core and fill acid base indicator solution, a hollow pole outer wall is with colorimetric card, and described acid base indicator solution is the potpourri of one or more acid base indicators.
The present invention is by inhaling acid base indicator solution in the rolled core fill in a hollow pole cavity, and encloses colorimetric card at a pole outer wall, successful invention a kind of easy to operate, saving manpower, time, and portable paper ph detecting pen.
Paper ph detecting pen of the present invention, described acid base indicator solution composition comprises: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0-0.5%, bromthymol blue 0-0.5%, thymol blue 0-0.5%.
Paper ph detecting pen of the present invention, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0-0.5%, bromthymol blue 0-0.5%, thymol blue 0-0.5%, Tween 80 1% and zellon 2%.
Paper ph detecting pen of the present invention, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card is: red-orange-Huang; The pH value that identifies on the corresponding colorimetric card of wherein red-orange color range is less than 5, and the pH value that identifies on the corresponding colorimetric card in orange-yellow rank is greater than 5.
Paper ph detecting pen of the present invention, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, bromthymol blue 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card 5 is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 7.3, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 7.3.
Paper ph detecting pen of the present invention, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, thymol blue 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 9, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 9.
Paper ph detecting pen of the present invention, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, bromthymol blue 0.2%, methyl red 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card is: red-yellow-green; The pH value that identifies on the corresponding colorimetric card in wherein red-yellow rank is less than 7, and the pH value that identifies on the corresponding colorimetric card in yellow-green rank is greater than 7.
Paper ph detecting pen of the present invention, described colorimetric card are pasted or are printed in described pole outer wall.
Paper ph detecting pen of the present invention, described detecting pen has the cap for brush, and the described cap for brush covers in described nib and penholder front end.
The detection method of described paper ph detecting pen provided by the invention is from written front end described indicator solution to be drawn in paper surface, and 3-10 after second compares a cut color and a colorimetric card that the pole outer wall is appended, reads the pH value of paper.
During the suitability for industrialized production of paper ph detecting pen of the present invention, after acid base indicator solution prepares, need to make colorimetric card, then indicator solution is carried out can to detecting pen, form same batch detecting pen product with the colour developing of standard pH value solution.The detecting pen product that forms need not calibration, directly reading before use.Only need on paper, draw the road during use with pen, then with pen on colorimetric card relatively, the pH value that can read paper in several seconds.
Beneficial effect of the present invention is:
1. the present invention need not calibrate before using, and is simple to operation.
2. paper ph detecting pen detection speed of the present invention is fast, only needs can record several seconds the pH value of paper.
3. volume of the present invention is little, easy to carry, and the field in being convenient to engage in archaeological studies is detected.
4. detecting pen cavity airtight of the present invention, indicator solution is difficult for air-dry, simultaneously because stability of solution is good, the sustainable use several months.
5. the detecting pen of different acid base indicator prescriptions can be used for the different objects that papery detects among the present invention, reaches different testing goals.
Other advantages of the present invention, target, to set forth in the following description to a certain extent with feature, and to a certain extent,, perhaps can obtain instruction from the practice of the present invention based on being conspicuous to those skilled in the art to investigating hereinafter.Target of the present invention and other advantages can be passed through following instructions, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1: structural representation of the present invention
Wherein: a 1-hollow pole, 2-nib, 3-rolled core, 4-bonnet, 5-colorimetric card, the 6-cap for brush; 7-nib front end, a 8-hollow pole front end, 9-nib rear end, a 10-hollow pole rear end
Embodiment
Hereinafter with reference to accompanying drawing, embodiments of the present invention are described in detail.
The paper ph detecting pen, form by the gradually thin hollow pole 1 of front end, nib 2, rolled core 3 and bonnet 4, nib is a column, flat slightly, rear end 9 diameters are less than front end 7, and written rear end is in a hollow pole front end 8 is inserted into rolled core 3 the hollow pole cavity, and be stuck in the front end 1 of a hollow pole, bonnet 4 is filled in a hollow pole rear end 10, inhales in the rolled core 3 and fills acid base indicator solution, and a hollow pole outer wall is with colorimetric card.
The acid base indicator solution formula is:
Water 17%, propylene glycol 20%, glycerine 8%, ethanol 51.8%, methyl red 0.2%, Tween 80: 1% and zellon 2%.
The color range scope of corresponding colorimetric card 5 is: red-orange-Huang; The pH value that identifies on the corresponding colorimetric card of wherein red-orange color range is less than 5, and the pH value that identifies on the corresponding colorimetric card in orange-yellow rank is greater than 5.
When the potential of hydrogen of paper documents such as books, archives, contract detects, if present redness then need to carry out depickling,, can carry out potential of hydrogen and follow the tracks of if present yellow then do not need to carry out depickling work, carry out depickling in good time.
Substantially the same manner as Example 1, institute's difference is that described acid base indicator solution composition is: water 25%, propylene glycol 5%, glycerine 10%, ethanol 56.8%, bromthymol blue 0.2%, Tween 80: 1% and zellon 2%, the color range scope of described colorimetric card 5 is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 7.3, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 7.3.
When paper is selected in the document printing of carrying out books, archives, contract etc. and needing long preservation, if present yellow, then should not select this kind paper for use, if present green or blueness, then can be used for the long preservation paper document.
Substantially the same manner as Example 1, institute's difference is that described acid base indicator solution composition is: water 30%, propylene glycol 5%, glycerine 5%, ethanol 56.8%, thymol blue 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card 5 is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 9, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 9.
For the paper that selects of permanent preservation document,, suitable if detection presents green if detection presents yellow then is not suitable for.
Embodiment 4:
Substantially the same manner as Example 1, institute's difference is that described acid base indicator solution composition is: water 20%, propylene glycol 10%, glycerine 6.6%, ethanol 60%, bromthymol blue 0.2%, methyl red 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card 5 is: red-yellow-green; The pH value that identifies on the corresponding colorimetric card in wherein red-yellow rank is less than 7, and the pH value that identifies on the corresponding colorimetric card in yellow-green rank is greater than 7.
If papery detects and to present the color between red and the Huang then belong to acidifying paper, be unfavorable for long preservation, if present yellow then belong to neutralized paper, it is longer to preserve the life-span, if present green then belong to alkaline paper, it is longer to preserve the life-span.
Although pass through with reference to embodiments of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (10)
1. paper ph detecting pen, comprise the gradually thin hollow of a front end pole (1), nib (2), rolled core (3) and bonnet (4), it is characterized in that, described nib is a column, rear end (9) diameter is less than front end (7), the nib rear end is in a described hollow pole front end (8) is inserted into rolled core (3) the described hollow pole cavity, and be stuck in the front end (1) of a described hollow pole, described bonnet (4) is filled in a hollow pole rear end (10), inhale in the described rolled core (3) and fill acid base indicator solution, a hollow pole outer wall is with colorimetric card (5), and described acid base indicator solution is the potpourri of one or more acid base indicators.
2. according to the described paper ph detecting pen of claim 1, it is characterized in that, described acid base indicator solution composition comprises: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0-0.5%, bromthymol blue 0-0.5%, thymol blue 0-0.5%.
3. according to the described paper ph detecting pen of claim 2, it is characterized in that, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0-0.5%, bromthymol blue 0-0.5%, thymol blue 0-0.5%, Tween 80 1% and zellon 2%.
4. according to the described paper ph detecting pen of claim 1, it is characterized in that, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, methyl red 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card (5) is: red-orange-Huang; The pH value that identifies on the corresponding colorimetric card of wherein red-orange color range is less than 5, and the pH value that identifies on the corresponding colorimetric card in orange-yellow rank is greater than 5.
5. according to the described paper ph detecting pen of claim 1, it is characterized in that, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, bromthymol blue 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card (5) is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 7.3, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 7.3.
6. according to the described paper ph detecting pen of claim 1, it is characterized in that, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, thymol blue 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card (5) is: Huang-green-indigo plant; The pH value that identifies on the corresponding colorimetric card in wherein yellow-green rank is less than 9, and the pH value that identifies on the corresponding colorimetric card in green-blue rank is greater than 9.
7. according to the described paper ph detecting pen of claim 1, it is characterized in that, described acid base indicator solution composition is: water 17%-30%, propylene glycol 5%-20%, glycerine 5%-20%, ethanol 50%-70%, bromthymol blue 0.2%, methyl red 0.2%, Tween 80 1% and zellon 2%, the color range scope of described colorimetric card (5) is: red-yellow-green; The pH value that identifies on the corresponding colorimetric card in wherein red-yellow rank is less than 7, and the pH value that identifies on the corresponding colorimetric card in yellow-green rank is greater than 7.
8. according to the described paper ph detecting pen of claim 1, it is characterized in that described colorimetric card (5) is pasted or is printed in described pole outer wall.
9. according to the described paper ph detecting pen of claim 1, it is characterized in that described detecting pen has the cap for brush (6), the described cap for brush (6) covers in described nib and penholder front end.
10. according to the detection method of the described paper ph detecting pen of claim 1, it is characterized in that, from written front end described indicator solution is drawn in paper surface, 3-10 after second compares a cut color and a colorimetric card that the pole outer wall is appended, reads the pH value of paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102264244A CN101393135B (en) | 2008-11-10 | 2008-11-10 | Paper ph detection pen and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102264244A CN101393135B (en) | 2008-11-10 | 2008-11-10 | Paper ph detection pen and detection method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101393135A true CN101393135A (en) | 2009-03-25 |
| CN101393135B CN101393135B (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102264244A Expired - Fee Related CN101393135B (en) | 2008-11-10 | 2008-11-10 | Paper ph detection pen and detection method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076121A (en) * | 2013-03-30 | 2014-10-01 | 天津市食品加工工程中心 | Preparation method of gel-type CO2 indicator |
| CN109444130A (en) * | 2018-12-21 | 2019-03-08 | 天津光电惠高电子有限公司 | A kind of the detection pen and detection method of quick detection human body inflammation infection grade |
| CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
| CN111595836A (en) * | 2020-04-16 | 2020-08-28 | 四川轻化工大学 | Handheld gas-liquid phase interface chemiluminescence detection pen, device, system and detection method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224162A (en) * | 1998-08-19 | 1999-07-28 | 中国电影资料馆 | Pencil tester for testing pH value of paper |
-
2008
- 2008-11-10 CN CN2008102264244A patent/CN101393135B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076121A (en) * | 2013-03-30 | 2014-10-01 | 天津市食品加工工程中心 | Preparation method of gel-type CO2 indicator |
| CN109444130A (en) * | 2018-12-21 | 2019-03-08 | 天津光电惠高电子有限公司 | A kind of the detection pen and detection method of quick detection human body inflammation infection grade |
| CN111595836A (en) * | 2020-04-16 | 2020-08-28 | 四川轻化工大学 | Handheld gas-liquid phase interface chemiluminescence detection pen, device, system and detection method thereof |
| CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
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| Publication number | Publication date |
|---|---|
| CN101393135B (en) | 2010-09-08 |
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Granted publication date: 20100908 Termination date: 20111110 |