CN105648834A - Chemical test paper covered with film and preparation method of chemical test paper - Google Patents
Chemical test paper covered with film and preparation method of chemical test paper Download PDFInfo
- Publication number
- CN105648834A CN105648834A CN201610010320.4A CN201610010320A CN105648834A CN 105648834 A CN105648834 A CN 105648834A CN 201610010320 A CN201610010320 A CN 201610010320A CN 105648834 A CN105648834 A CN 105648834A
- Authority
- CN
- China
- Prior art keywords
- test paper
- detection test
- chemical detection
- polyvinyl alcohol
- protection liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
Abstract
The invention belongs to the technical field of chemical test paper, and relates to chemical test paper covered with a film and a preparation method of the chemical test paper. The method comprises the following steps: preparing polyvinyl alcohol, polyethylene glycol and vinyl acetate proportionally, and mixing the polyvinyl alcohol, the polyethylene glycol and the vinyl acetate evenly to form a protection liquid; and evenly painting the protection liquid on the chemical test paper, and airing the protection liquid, so as to form a layer of transparent protection film on the chemical test paper. The protection film is formed on the surface of the chemical test paper under the condition that use of the chemical test paper is not affected so as to prevent reaction and deterioration in a storage process.
Description
Technical field
The invention belongs to Test paper technical field, relate to a kind of overlay film chemical detection test paper and preparation method thereof.
Background technology
The situation that behind the Kaifeng of dry chemical Test paper existence at present, the shelf-life significantly shortens, because dry chemistry test paper and empty behind KaifengGas contact, causes the chemical substance generation chemical reaction on test paper head, thereby causes the inaccurate even inefficacy of testing result.
Summary of the invention
For above-mentioned phenomenon, the invention provides a kind of overlay film chemical detection test paper and preparation method thereof, do not affecting chemical detectionIn the situation that test paper uses, rotten by reaction in preventing at chemical detection test paper surface formation diaphragm the process of depositing.
The present invention is achieved like this. A kind of overlay film chemical detection test paper, is characterized in that, at chemical detection test paper surface bagCover the water-soluble diaphragm of one deck.
The composition of described water-soluble diaphragm is that polyvinyl alcohol, polypropylene glycol, vinyl acetate are prepared by a certain percentage and be coated in chemistryTest paper surface, and dry and obtain.
As preferred version, each constituent mass ratio, polyvinyl alcohol: polypropylene glycol: vinyl acetate=(6-8): (1-3):(1-2)。
Optimum quality ratio, polyvinyl alcohol: polypropylene glycol: vinyl acetate=7:2:1.
A preparation method for overlay film chemical detection test paper, is characterized in that: polyvinyl alcohol, polypropylene glycol, vinyl acetate are pressedRatio preparation, is mixed into a kind of protection liquid, and protection liquid is evenly coated on chemical detection test paper, and protection liquid spreads upon dry chemical inspectionAfter on test paper, dry, after drying, on chemical detection test paper, form the diaphragm of layer of transparent.
Further preferably, when the preparation of protection liquid, each component addition sequence is first to add the vinyl acetate of 1 mass parts, then addThe polyvinyl alcohol of 7 mass parts, finally adds the polypropylene glycol of 2 mass parts. In the time adding polyvinyl alcohol process, should suitably heatStir, make whole system even.
Further, protection liquid smearing thickness 0.3-0.8mm, optimum thickness is 0.5mm.
Advantage of the present invention: formed diaphragm on chemical detection test paper surface, chemical detection test paper is still existed behind KaifengContacting of layer of transparent diaphragm starvation and test-paper, play the effect of reagent on protection chemical detection test paper, and its propertyMatter is stable, does not react with Test paper, does not affect result of use. And diaphragm is water miscible, user was detectingCheng Zhong, when dripping liquid to be measured, the diaphragm water soluble of preparing as main body taking polyvinyl alcohol, polypropylene glycol, vinyl acetate,Determinand is contacted with chemical test paper, react.
Detailed description of the invention
Embodiment 1
Take 10g vinyl acetate and add in container, then add 70g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 20g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.5mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Polyvinyl alcohol, polypropylene glycol, the formulated protection liquid of vinyl acetate have certain viscosity, and are water miscible. ProtectionLiquid dries the diaphragm of formation, and its oxygen transmission rate is less than 1cm3/ (m224h0.1MPa), soon close to the performance of aluminium foil.Diaphragm makes chemical detection test paper behind Kaifeng, still exist contacting of layer of transparent diaphragm starvation and test-paper, playsThe effect of chemical detection test paper reagent, and its stable in properties, do not react with Test paper, do not affect result of use. And protectCuticula is water miscible, and user is in testing process, when dripping liquid to be measured, with polyvinyl alcohol, polypropylene glycol, acetic acidEthene is the diaphragm water soluble of main body preparation, and determinand is contacted with chemical test paper, reacts.
Embodiment 2
Take 10g vinyl acetate and add in container, then add 80g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 10g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.6mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Embodiment 3
Take 10g vinyl acetate and add in container, then add 60g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 30g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.3mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Embodiment 4
Take 20g vinyl acetate and add in container, then add 70g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 20g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.7mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Embodiment 5
Take 20g vinyl acetate and add in container, then add 60g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 10g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.8mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Embodiment 6
Take 15g vinyl acetate and add in container, then add 60g polyvinyl alcohol, in the time adding polyvinyl alcohol process, should be suitableAdd thermal agitation, make whole system even, finally add 25g polypropylene glycol, stir, be mixed into a kind of protection liquid, will protect liquid equalEven being coated on chemical detection test paper, the about 0.4mm of smearing thickness, protection liquid dries after spreading upon on dry chemical Test paper, dries in the airAfter dry, on chemical detection test paper, form the diaphragm of layer of transparent.
Finally explanation, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to better enforcementExample has been described in detail the present invention, and those of ordinary skill in the art should be appreciated that and can enter technical scheme of the present inventionRow is revised or is equal to replacement, and does not depart from aim and the scope of technical solution of the present invention, and it all should be encompassed in right of the present inventionIn the middle of claimed range.
Claims (7)
1. an overlay film chemical detection test paper, is characterized in that, at the coated water-soluble diaphragm of one deck in chemical detection test paper surface.
2. overlay film chemical detection test paper according to claim 1, is characterized in that, the composition of described water-soluble diaphragm is poly-secondEnol, polypropylene glycol, vinyl acetate are prepared in proportion and are coated in chemical detection test paper surface, and dry and obtain, each component matterAmount is than being: polyvinyl alcohol: polypropylene glycol: vinyl acetate=(6-8): (1-3): (1-2).
3. overlay film chemical detection test paper according to claim 2, is characterized in that, each constituent mass ratio: polyvinyl alcohol: poly-thirdGlycol: vinyl acetate=7:2:1.
4. a preparation method for overlay film chemical detection test paper described in claim 1,2 or 3, is characterized in that: by polyvinyl alcohol,Polypropylene glycol, vinyl acetate are prepared in proportion, are mixed into a kind of protection liquid, protection liquid is evenly coated on chemical detection test paper,Protection liquid dries after spreading upon on dry chemical Test paper, forms the guarantor of layer of transparent after drying on chemical detection test paperCuticula.
5. the preparation method of overlay film chemical detection test paper according to claim 4, is characterized in that: when the preparation of protection liquid, and each componentAddition sequence is first to add vinyl acetate, then add polyvinyl alcohol, last polypropylene glycol; In the time adding polyvinyl alcohol process,Add thermal agitation, make whole system even.
6. the preparation method of overlay film chemical detection test paper according to claim 4, is characterized in that: protection liquid smearing thickness is0.3-0.8mm。
7. the preparation method of overlay film chemical detection test paper according to claim 4, is characterized in that: protection liquid smearing thickness is0.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010320.4A CN105648834B (en) | 2016-01-08 | 2016-01-08 | A kind of overlay film chemical detection test paper and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010320.4A CN105648834B (en) | 2016-01-08 | 2016-01-08 | A kind of overlay film chemical detection test paper and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105648834A true CN105648834A (en) | 2016-06-08 |
| CN105648834B CN105648834B (en) | 2017-11-10 |
Family
ID=56490596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610010320.4A Expired - Fee Related CN105648834B (en) | 2016-01-08 | 2016-01-08 | A kind of overlay film chemical detection test paper and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105648834B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370652A (en) * | 2016-11-03 | 2017-02-01 | 百奥森（江苏）食品安全科技有限公司 | Azide quick detection test paper in feed and preparation method thereof |
| CN106501246A (en) * | 2016-11-04 | 2017-03-15 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of content of nitrite in foods quick detection test paper and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135648A (en) * | 2006-08-29 | 2008-03-05 | 上海三爱思试剂有限公司 | pH test paper capable of maintaining stabilization and method for preparing the same |
| CN203616302U (en) * | 2013-09-25 | 2014-05-28 | 昆明泊银科技有限公司 | Test paper of lamination film |
-
2016
- 2016-01-08 CN CN201610010320.4A patent/CN105648834B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135648A (en) * | 2006-08-29 | 2008-03-05 | 上海三爱思试剂有限公司 | pH test paper capable of maintaining stabilization and method for preparing the same |
| CN203616302U (en) * | 2013-09-25 | 2014-05-28 | 昆明泊银科技有限公司 | Test paper of lamination film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370652A (en) * | 2016-11-03 | 2017-02-01 | 百奥森（江苏）食品安全科技有限公司 | Azide quick detection test paper in feed and preparation method thereof |
| CN106501246A (en) * | 2016-11-04 | 2017-03-15 | 无锡艾科瑞思产品设计与研究有限公司 | A kind of content of nitrite in foods quick detection test paper and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105648834B (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IL95891A (en) | Moisture indicating ink | |
| BR112016027723B1 (en) | THERMALLY SEALED STRUCTURE, METHOD FOR PREPARING THE THERMALLY SEALED STRUCTURE AND USE OF THE THERMALLY SEALED STRUCTURE | |
| JP2007316058A (en) | Coating for humidity indicator, method for producing the same, and humidity indicator using the same | |
| CN105648834A (en) | Chemical test paper covered with film and preparation method of chemical test paper | |
| CN107090741B (en) | Transfevent tipping paper and preparation method thereof | |
| CN108783554A (en) | A kind of leakage of efficient anti-seepage carries capsule with diuresis promoting function and preparation method thereof | |
| RU2010115255A (en) | COMPOSITIONS FOR APPLICATION COATING WITH IMMERSION CONTAINING A POLYVINYL ALCOHOL AND POLYETHYLENE GLYCOL COPOLYMER AND GUM | |
| CN107379703B (en) | A kind of control release type active packing film and preparation method thereof | |
| RU2010138548A (en) | COMPOSITIONS FOR APPLICATION BY DIPPING METHOD INCLUDING HIGH AMILOSE CONTENT STARCH | |
| US3146070A (en) | ph indicator unit | |
| CN102485809B (en) | UV-light curing coating | |
| CN109294486A (en) | A kind of glued board modified polyvinylalcohol adhesive | |
| CN103399010B (en) | A kind of preparation method of formaldehyde examination plate of changeable colour | |
| US3528780A (en) | Visual ammonia detector | |
| CN103173206B (en) | Water-finding paste capable of changing color when wet | |
| US3134687A (en) | Wrapping and packing material having a preserving effect | |
| CN103966899B (en) | A kind of filmogen and compound method and the band film test paper by this filmogen film forming | |
| CN110172268A (en) | A kind of room temperature removes the water-fast moisture resistance putty paste of formaldehyde | |
| CN106753067B (en) | A kind of ultrahigh speed cigarette connects mouth glue and preparation method thereof | |
| CN109280121A (en) | A kind of acrylic acid base-material lotion | |
| CN105694644A (en) | A preparing method of a bleed-resistant cation acrylate emulsion | |
| CN114369430A (en) | Low-temperature lap adhesive and preparation method thereof | |
| CN113831777B (en) | Electrolyte-infiltration-resistant soft-package aluminum-plastic film coating | |
| CN106525830A (en) | Nitrite test paper | |
| CN105780591A (en) | Method for making vegetable/fruit preservative paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20180108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |