CN104464119A - Fingerprint residue prevention POS machine and manufacturing method - Google Patents
Fingerprint residue prevention POS machine and manufacturing method Download PDFInfo
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- CN104464119A CN104464119A CN201410755679.5A CN201410755679A CN104464119A CN 104464119 A CN104464119 A CN 104464119A CN 201410755679 A CN201410755679 A CN 201410755679A CN 104464119 A CN104464119 A CN 104464119A
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Abstract
The invention provides a fingerprint residue prevention POS machine and a manufacturing method. The manufacturing process of a password input keyboard of the POS machine comprises the steps that S100, Dow Corning 2634 coatings are diluted to a fingerprint residue prevention solution with the mass ratio of 0.1-1% through a fluoride solvent; S200, the surface of a base material of the password input keyboard of the POS machine is cleaned; S300, the base material is immersed in the fingerprint residue prevention solution for 2-4 minutes; S400, the base material immersed in the fingerprint residue prevention solution is dried; S500, the dried base material is washed and redundant polymer is removed; S600, the washed base material is dried again. The fingerprint residue prevention POS machine and the manufacturing method solve the problems that fingerprints are prone to being left on a password input keyboard of an existing POS machine, criminals can easily steal passwords to perform illegal operations, and the property safety of users can not be guaranteed.
Description
Technical field
The present invention relates to POS field, specifically be the residual POS of a kind of anti-fingerprint and preparation method.
Background technology
The fingerprint of people is constant throughout one's life, and people is variant, is that what to generally acknowledge in the world is also one of most important personal feature, is widely used among criminal detective and security work.But also allow lawless person have an opportunity to utilize this characteristic to carry out some illegal operations, as the bridge section often seen in movie and television play, use powder or chemical agent extract the fingerprint that others stays on cipher inputting keyboard, thus steal money after decryption.
The keyboard of input password is that the POS of financial POS industry class is used for inputting password, along with bank card user to increase with bankcard consumption day by day prevailing, this kind of operation is very frequent, but relevant secrecy technology is not safe against all possibilities, the numeric keypad of the plastic materials such as traditional use ABS has fingerprint residues after user inputs password, this leaves opportunity to lawless person, utilize fingerprint extraction technology to find out the password figure of input password person, to be snatched password implementation illegal operation by comparatively simple mathematical combination.Do not possess for existing POS the keyboard that anti-fingerprint remains function, have that following some is not enough: the fingerprint residues safeguard protection 1, not carrying out special material, easily cause password figure to be stolen by other people; 2, oil stain, sweat mark etc. are easily residual, affect keyboard digital attractive in appearance; 3, touch keyboard if any special chemical solvent, easily cause numeral wearing and tearing.
Therefore, the POS being necessary to provide a kind of anti-fingerprint residual and preparation method are to solve the problem.
Summary of the invention
Technical matters to be solved by this invention is: the POS providing a kind of anti-fingerprint residual and preparation method, the cipher inputting keyboard solving existing POS easily leaves fingerprint, easily to be snatched password implementation illegal operation by illegal molecule, the property safety problem of user cannot be ensured.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
The POS that anti-fingerprint is residual, comprises cipher inputting keyboard, described cipher inputting keyboard is coated with anti-fingerprint and remains coating.
Another technical scheme provided by the invention is:
A preparation method for the POS that anti-fingerprint remains, the preparation process of the cipher inputting keyboard of POS comprises:
S100: DOW CORNING 2634 coating containing fluorous solvent and 0.1-1 mass parts of 100 mass parts is mixed and made into anti-fingerprint residual solution
S200: the surface of the password input key disk substrate of clean POS;
S300: described base material is immersed into 2-4 minute in described anti-fingerprint residual solution;
S400: the base material of the described anti-fingerprint residual solution through submergence process is carried out drying process;
S500: unnecessary polymkeric substance is removed to the base material cleaning after drying process;
S600: will again carry out drying process through cleaned base material.
Another kind of technical scheme provided by the invention is:
The POS that anti-fingerprint is residual and a preparation method, is characterized in that, comprising:
S010: the surface of the input keyboard base material of clean POS;
S020: the input keyboard base material of DOW CORNING 2634 coating and POS is put into phase depositing reaction chamber;
S030: the temperature of adjustment phase depositing reaction chamber is 500-1000 DEG C, and the reaction time is 60s, and pressure is 0.01Pa.
Beneficial effect of the present invention is: the cipher inputting keyboard being different from prior art POS easily leaves fingerprint, easily to be snatched password implementation illegal operation by illegal molecule, cannot ensure the property safety problem of user.The invention provides the residual POS of a kind of anti-fingerprint and preparation method, coating is remained by being coated with anti-fingerprint on the cipher inputting keyboard of POS, the Password Input numeric keypad that the anti-fingerprint utilizing anti-fingerprint to remain coating to have, antifouling, waterproof, the characteristic such as wear-resisting solve POS uses the plastic key of the materials such as common ABS after user inputs password owing to there being fingerprint residues, causes the possibility having password to be stolen.The maximum program of the present invention reduces other people and utilizes fingerprint residues to crack the possibility of numerical ciphers, simultaneously, code keypad can be made again to possess the functions such as waterproof, antifouling, moistureproof, scratch-resistant, and the clean of convenient POS is arranged, and enables the code keypad of POS keep better quality for a long time.
Accompanying drawing explanation
Fig. 1 is the effect comparison chart of the cipher inputting keyboard of one embodiment of the invention and the cipher inputting keyboard of existing POS;
Fig. 2 remains the examine repair comparison diagram that coating and other anti-fingerprint remain coating for the anti-fingerprint used in one embodiment of the invention;
Fig. 3 remains the hydrolysis curing mechanism of coating DOW CORNING 2634 coating for the anti-fingerprint used in one embodiment of the invention;
Fig. 4 is the PH profile diagram of the hydrolysing step first of γ in one embodiment of the invention-glycidylpropyl trimethoxy silane.
Embodiment
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with embodiment.
The design of most critical of the present invention is: on the cipher inputting keyboard of POS, be coated with anti-fingerprint through the specific preparation method of the present invention and remain coating, prevent user fingerprints from remaining, and ensures the clean of keyboard simultaneously.
Please refer to Fig. 1 to Fig. 4, the invention provides the POS that a kind of anti-fingerprint is residual, comprise cipher inputting keyboard, described cipher inputting keyboard scribbles anti-fingerprint and remains coating.
From foregoing description, beneficial effect of the present invention is: the invention provides the residual POS of a kind of anti-fingerprint and preparation method, coating is remained by being coated with anti-fingerprint on the cipher inputting keyboard of POS, the Password Input numeric keypad that the anti-fingerprint utilizing anti-fingerprint to remain coating to have, antifouling, waterproof, the characteristic such as wear-resisting solve POS uses the plastic key of the materials such as common ABS after user inputs password owing to there being fingerprint residues, causes the possibility having password to be stolen.The maximum program of the present invention reduces other people and utilizes fingerprint residues to crack the possibility of numerical ciphers, simultaneously, code keypad can be made again to possess the functions such as waterproof, antifouling, moistureproof, scratch-resistant, and the clean of convenient POS is arranged, and enables the code keypad of POS keep better quality for a long time.
It should be noted that, anti-fingerprint is residual to be realized mainly through anti-soil, if having good stain resistance, then can be good at preventing fingerprint residues.The characteristic of anti-soil can be estimated from static contact angle (θ s), and it designates the repellency to liquid, and higher contact angle (θ s) means that minimizing dirt is attached to the characteristic of surface energy; Easy cleaned characteristic can be estimated from the delayed action of sliding contact angle and dynamic contact angle, and dynamic contact angle is that advancing contact angle is (θ a) and the difference of receding contact angle (θ r), as " θ a-θ r ".Lower sliding contact angle and delayed action value mean higher characteristic easy to clean.
Further, described anti-fingerprint remains coating is that reactive silane groups and fluorine richness organic group combine nano antifouling paint, 17 fluorine certain herbaceous plants with big flowers ethyl triethoxy silicane alkane coatings or DOW CORNING 2634 anti-fingerprint coating.
It should be noted that, nano antifouling paint can be protected the part of keyboard outermost layer contact staff, at utmost reduces the cryptosecurity problem that residual fingerprint causes.The anti-fingerprint liquid of producer of preferred employing Japanese SHIN-ETSU HANTOTAI, it has product performance: film forming thickness: 10 nanometers; Refuse water angle: be greater than 115 degree and refuse oily angle: be greater than 74 degree; Kinetic friction coefficient: 0.03.17 fluorine certain herbaceous plants with big flowers ethyl triethoxy silicane alkane coatings preferably think health anti-fingerprint oil SICONGF-1090, it is by the formulated a kind of fluoro-containing coating of the fluorine silicon resin of special construction, the technical terms of chemistry are generally 17 fluorine certain herbaceous plants with big flowers ethyl triethoxy silicane alkane, are to name according to the molecular structure combination of product.There is the performances such as waterproof and oilproof is antifouling, moistureproof, insulation, acidproof, anti-fingerprint, as superior performances such as anti-fingerprint, wear-resisting scratch-resisting trace, adhesion, the thin property of film forming, transmittances, not easily adhere to the pollutants such as fingerprint, be convenient to clean arranging, the product quality that can keep for a long time.Be mainly used in mobile phone, camera, the cover glass of touch screen computer and the contour terminal number code product of TV, and the water proof anti-soil anti-fingerprint process of the high-end product such as ceramic sanitary ware, five metals sanitary equipment.17 fluorine certain herbaceous plants with big flowers ethyl triethoxy silicane alkane appearance of coat, for looking for or light yellow clear liquid, have the active component of 20%, have following characteristic: water contact angle is 108 °-115 °; Parade contact angle is 65 °-70 °; Friction factor is 0.09; Wearing quality is (heavy burden 1KG, 0000# steel wool, the contact area 20mm*20mm) after 3000 times that rub back and forth, and water contact angle is greater than 100 °; Thicknesses of layers: 12-20nm; Film hardness (on glass): more than MIN 6H.
Another technical scheme provided by the invention is:
A preparation method for the POS that anti-fingerprint remains, the preparation process of the cipher inputting keyboard of POS comprises:
S100: DOW CORNING 2634 coating containing fluorous solvent and 0.1-1 mass parts of 100 mass parts is mixed and made into anti-fingerprint residual solution;
S200: the surface of the password input key disk substrate of clean POS;
S300: described base material is immersed into 2-4 minute in described anti-fingerprint residual solution;
S400: the base material of the described anti-fingerprint residual solution through submergence process is carried out drying process;
S500: unnecessary polymkeric substance is removed to the base material cleaning after drying process;
S600: will again carry out drying process through cleaned base material.
From foregoing description, beneficial effect of the present invention is: the maximum program of the present invention reduces other people and utilizes fingerprint residues to crack the possibility of numerical ciphers, simultaneously, code keypad can be made again to possess the functions such as waterproof, antifouling, moistureproof, scratch-resistant, the clean of convenient POS is arranged, and enables the code keypad of POS keep better quality for a long time.Concrete, DOW CORNING 2634 antifouling paint is novel alkylsiloxane functionalized perfluoropolyethers (PFPE) hybridized polymer, and the characteristic of the oleophobic and low-friction coefficient with fluoropolymer also has the hydrophobic of siloxane and wear properties.By reacting the alkoxy silane of PFPE polymkeric substance with single functional end-blocking, current product can be made to obtain better rub resistance and UV permanance.The activity end of alkoxy silane by hydrolysis and condensation reaction and surface reaction, will adjust input keyboard substrate surface structural arrangement.The major advance of this new technology is wearing quality, makes the time that surface cleaning ability keeps longer.This chemical surface modification agent forms a low surface tension layer or stain-proofing layer on the surface of various base material.
The static contact angle of DOW CORNING 2634 coating and sliding contact angle, and see Fig. 2 respectively with the contrast of other business fluorination treatment agent.DOW CORNING 2634 coating has excellent static contact angle (θ s) and sliding contact angle (α) to water, ethylene glycol and n-hexadecane.
The premium properties of DOW CORNING 2634 coating is from its exclusive α-novel perfluoropolyether alkoxysilane molecular structure.
Its long-chain PFPE provides:
High Oil repellent (every mole of 60 perfluoroalkyl unit)
Flexible molecule chain
α-functional alkoxy silane end-blocking provides:
Unimolecule flexible layer
The pollution by water, oil, spot or dirt prevented by DOW CORNING 2634 coating protection base material.
Preferably, based on the various contact angle of solvent effect, life-span and the rub proofness of time effects film are set out, and select the ratio of 100:0.1-1 to be mixed and made into anti-fingerprint residual solution for will obtaining best contact angle after base material; And time base material being immersed in anti-fingerprint residual solution 2-4 minute will obtain painting membrane lifetime and the rub proofness of optimum efficiency.
Further, in step S100 described containing fluorous solvent be hexafluoroethane, hydrogen fluorine ether, 3M fluoridize liquid or perfluor alkane hydrogen.
Seen from the above description, DOW CORNING 2634 coating needs to be equipped with suitable solvent dilution and uses, and the diluting solvent preferably used comprises the HFE-7200 of 3M, HFE-7100, and fluoridizes liquid
fC-77; Think Kang Huaxue hydrogen fluorine ether series: F-8632, F-8603, F-8605, F-8608, F-8610; Solvay
hT-110; Perfluoro alkane, as perflexane, PF 5070, PFO etc.
Further, the surface of the input keyboard base material of POS is cleaned in step S200 by ultrasound wave or plasma machine;
DOW CORNING 2634 coating can process multiple base material, comprises glass, pottery, the silicon of surface active or metal, as long as there is active hydroxy on its surface.DOW CORNING 2634 coating is not easy on inert base, as the plastics, metal oxide surface, plate surface etc. of light.Therefore, the performance of DOW CORNING 2634 coating depends on substrate surface state, recommends to take following preprocessor.
Glass, pottery, silicon:
Base material is cleaned into surface that is dry, nothing oil.
Metal:
Surface preparation is to remove metal oxide.
Plastics:
Adopt SiO2 type hard conating as primary coat.
From the above, by pending password input key disk substrate ultrasound wave or plasma machine process, make substrate surface clean, dry, without the powder ash that drifts along, without pollutants such as greases.
The Immersion time of base material described in step S300 is 3 minutes.
Further, in step S400 by the described base material through submergence process at room temperature dry 8-10 hour or 50 DEG C and 50% relative humidity under dry one hour.
Post RDBMS (drying) preferred version:
The activity unit of DOW CORNING 2634 coating is alkoxy silane.The mechanism of solidification process is shown in Fig. 3, because hydrolytic process is slowly, especially in neutral environment, under lower temperature and humidity, may need week more than one could completion of cure, if PH profile diagram in the hydrolysing step first of γ-glycidylpropyl trimethoxy silane during period is in the winter time as shown in Figure 4.γ-glycidylpropyl trimethoxy silane, chemical molecular formula is: (CH3O) 3SiCH2CH2CH2OCH2CH-CH2, the silane of this glycidyl functionalization is the one in Dow Corning Corporation's series organic functional silane, is the activity unit of DOW CORNING 2634 coating.
From the above, under sour environment, preferably carry out drying process, under sour environment, will the bonding speed to base material be increased.
Further, after the described base material just through submergence process in step S400 at room temperature leaves standstill 3-10 minute, the dry 20-40 minute of baking oven of 120-150 DEG C is put into.
Further, in step S500, the base material after drying process is cleaned in ultrasound wave pond, remove unnecessary polymkeric substance;
Will through cleaned base material at room temperature dry 5-10 minute in step S600.
The present invention also provides by technical scheme:
The POS that anti-fingerprint is residual and a preparation method, is characterized in that, comprising:
S010: the surface of the input keyboard base material of clean POS;
S020: the input keyboard base material of DOW CORNING 2634 coating and POS is put into phase depositing reaction chamber;
S030: the temperature of adjustment phase depositing reaction chamber is 500-1000 DEG C, and the reaction time is 60s, and pressure is 0.01Pa.
From foregoing description, beneficial effect of the present invention is:
Physical vapour deposition (PVD) (Physical Vapor Deposition is called for short PVD method) is utilize the physical processes such as thermal evaporation, glow discharge or arc discharge, in the technology of the required coating of substrate surface deposition.It comprises vacuum vapor plating, sputter coating and ion film plating.Compared with other plated films or surface treatment method, physical vapour deposition (PVD) has following characteristics:
(1) coating material is extensive, can plate the compound coating such as various metal, alloy, oxide, nitride, carbonide, also can be coated with metal, the multilayer of compound or composite bed;
(2) coating adhesion is strong; Technological temperature is low, and workpiece is general the problem such as to go bad without temperature distortion or material, and as obtained the hard coatings such as TiN with ion plating, its workpiece temperature can remain on less than 550 DEG C, and these 1000 DEG C of preparing needed for same coating than chemical vapour deposition technique are much lower; Coating purity is high, dense structure; Technological process controls primarily of electrical quantity, is easy to control, regulate; Environmentally safe.
Further, the surface of the input keyboard base material of POS is cleaned in step S010 by ultrasound wave or plasma machine.
Embodiments of the invention one are:
The preparation method of the cipher inputting keyboard of the POS that a kind of anti-fingerprint remains: use nano-spray equipment to be sprayed on the cipher inputting keyboard of POS by nano antifouling paint.The described preferred producer of nano antifouling paint is that a kind of coating combined with reactive silane groups and fluorine richness organic group of Japanese SHIN-ETSU HANTOTAI (shinetsu) is made into nano antifouling coating; the part of keyboard outermost layer contact staff is protected, at utmost reduces the cryptosecurity problem that residual fingerprint causes.
Embodiments of the invention two are:
The preparation method of the cipher inputting keyboard of the POS that a kind of anti-fingerprint remains:
The base material (material) of pending POS cipher inputting keyboard with ultrasound wave (or plasma machine process) make substrate surface clean, dry, without the powder ash that drifts along, without pollutants such as greases;
The anti-fingerprint oil solution prepared is used to adopt rubbing method, spraying process or infusion method to process substrate surface, and give enough set times (under room temperature dry solidification in more than 10 hours), or after at room temperature leaving standstill a few minutes, to 120-150 DEG C of curing oven 30min; Or confirm best solidification scheme voluntarily according to enterprise.
Embodiments of the invention three are:
Adopt dip coating to prepare the cipher inputting keyboard of the POS that a kind of anti-fingerprint remains, comprising:
1, cleaned base material surface.
2, with a kind of applicable containing fluorous solvent, DOW CORNING 2634 coating to be diluted to 0.1% solids content.
3, base material to be immersed in DOW CORNING 2634 coating solution about 3 minutes.
4, by the base material after dip-coating at room temperature dry 8 hours, or 50 DEG C (122 °F) and 50% relative humidity under drying 1 hour.(under sour environment the dry bonding speed that will increase base material)
5, in ultrasound wave pond, unnecessary unreacted polymer is cleaned with the solvent be applicable to.
6, at room temperature dry a few minutes.
Embodiments of the invention four are:
The cipher inputting keyboard of the POS adopting PVD legal system to remain for a kind of anti-fingerprint, comprising:
1, cleaned base material surface.
2, loading DOW CORNING 2634 coating and base material are in vapor deposition chamber.
3, deposit at the temperature be applicable at base material, time and pressure.
In sum, the POS that a kind of anti-fingerprint provided by the invention is residual and preparation method, reducing other people in maximum program utilizes fingerprint residues to crack the possibility of numerical ciphers, simultaneously, code keypad can be made again to possess the functions such as waterproof, antifouling, moistureproof, scratch-resistant, the clean of convenient POS is arranged, and enables the code keypad of POS keep better quality for a long time.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing instructions of the present invention and accompanying drawing content to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the POS that anti-fingerprint is residual, is characterized in that, comprise cipher inputting keyboard, described cipher inputting keyboard is coated with anti-fingerprint and remains coating.
2. the POS that a kind of anti-fingerprint according to claim 1 is residual, it is characterized in that, it is that reactive silane groups and fluorine richness organic group combine nano antifouling paint, 17 fluorine certain herbaceous plants with big flowers ethyl triethoxy silicane alkane coatings or DOW CORNING 2634 anti-fingerprint coating that described anti-fingerprint remains coating.
3. the preparation method of POS that remains of anti-fingerprint, it is characterized in that, the preparation process of the cipher inputting keyboard of POS comprises:
S100: DOW CORNING 2634 coating containing fluorous solvent and 0.1-1 mass parts of 100 mass parts is mixed and made into anti-fingerprint residual solution;
S200: the surface of the password input key disk substrate of clean POS;
S300: described base material is immersed into 2-4 minute in described anti-fingerprint residual solution;
S400: the base material of the described anti-fingerprint residual solution through submergence process is carried out drying process;
S500: unnecessary polymkeric substance is removed to the base material cleaning after drying process;
S600: will again carry out drying process through cleaned base material.
4. the POS that a kind of anti-fingerprint according to claim 3 is residual and preparation method, is characterized in that, in step S100 described containing fluorous solvent be hexafluoroethane, hydrogen fluorine ether, 3M fluoridize liquid or perfluor alkane hydrogen.
5. the POS that a kind of anti-fingerprint according to claim 3 is residual and preparation method, be is characterized in that, cleaned the surface of the input keyboard base material of POS in step S200 by ultrasound wave or plasma machine;
The Immersion time of base material described in step S300 is 3 minutes.
6. the POS that a kind of anti-fingerprint according to claim 3 is residual and preparation method, is characterized in that, in step S400 by the described base material through submergence process at room temperature dry 8-10 hour or 50 DEG C and 50% relative humidity under drying one hour.
7. the POS that a kind of anti-fingerprint according to claim 3 is residual and preparation method, is characterized in that, after the described base material just through submergence process in step S400 at room temperature leaves standstill 3-10 minute, puts into the dry 20-40 minute of baking oven of 120-150 DEG C.
8. the POS that a kind of anti-fingerprint according to claim 3 is residual and preparation method, is characterized in that, cleaned by the base material after drying process in step S500 in ultrasound wave pond, remove unnecessary polymkeric substance;
Will through cleaned base material at room temperature dry 5-10 minute in step S600.
9. the POS that anti-fingerprint is residual and a preparation method, is characterized in that, comprising:
S010: the surface of the input keyboard base material of clean POS;
S020: the input keyboard base material of DOW CORNING 2634 coating and POS is put into phase depositing reaction chamber;
S030: the temperature of adjustment phase depositing reaction chamber is 500-1000 DEG C, and the reaction time is 60s, and pressure is 0.01Pa.
10. the POS that a kind of anti-fingerprint according to claim 9 is residual and preparation method, be is characterized in that, cleaned the surface of the input keyboard base material of POS in step S010 by ultrasound wave or plasma machine.
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| CN108612123A (en) * | 2018-03-29 | 2018-10-02 | 榛硕（武汉）智能科技有限公司 | A kind of new concrete module |
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| CN115301522A (en) * | 2022-06-02 | 2022-11-08 | 烟台先进材料与绿色制造山东省实验室 | Anti-fingerprint nano coating and preparation method and application thereof |
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Application publication date: 20150325 |