CN102866183A - Manufacturing method of conductive layer of blood glucose test strip - Google Patents
Manufacturing method of conductive layer of blood glucose test strip Download PDFInfo
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- CN102866183A CN102866183A CN2011101993520A CN201110199352A CN102866183A CN 102866183 A CN102866183 A CN 102866183A CN 2011101993520 A CN2011101993520 A CN 2011101993520A CN 201110199352 A CN201110199352 A CN 201110199352A CN 102866183 A CN102866183 A CN 102866183A
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- little drop
- test paper
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- blood sugar
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Abstract
The invention provides a manufacturing method of a conductive layer of a blood glucose test strip. The method comprises the steps of: (a) providing a test strip intermedium which is provided with a conductive layer coating area; (b) providing a first micro-droplet device placed in the conductive layer coating area to spray micro-droplets of conducting resin by way of single point spray printing so as to form a conductive adhesive layer; and (c) providing a second micro-droplet device placed on the conductive adhesive layer to spray micro-droplets of a conducting medium by way of single point spray printing so as to form a conductive carbon layer.
Description
Technical field
The present invention is about a kind of blood sugar test paper conductive layer manufacture method, espespecially a kind of blood sugar test paper conductive layer manufacture method that adopts little drop ink-jet technology.
Background technology
Because the growth in the global diabetes test consumables market that has a high potential, the diabetes patient tests the actual needs of blood sugar every day, and development and Design and the production of implementing the commercialization blood sugar test paper have great commercial value.The survey of blood glucose meter sugar technology can be divided into electrochemical process test and light reflection technology test two large classes at present, wherein the advantage of electrochemical process test is that price comparison is cheap, and the electrochemical process system for detecting blood sugar develop more than 30 years, it can implement the important means that blood sugar oneself detects, effectively controls the state of an illness for the diabetes patient.The electrochemical process test that general tradition is used mainly is that the electronics that enzyme and glucose response produce is used the electric current facility that counts again, and the quantity of read electric changes into readings of glucose concentration again.
Any manufacturer or technological development merchant are in order to improve blood sugar test Related product quality; reduce production costs; usually can carry out Comprehensive consideration and assessment to each money test macro leaved for development; its main evaluation item comprises: the accuracy of system and precision requirement; the speed of blood sugar detection; the kind of the oxidoreducing enzyme that uses and stabilization mode; sampling quantity; input mode; the apparent size of test paper; raw-material selection comprises conducting medium; test paper substrate material and electrically conductive ink consider that in the outward appearance of instrument the user has the design of good interface; ease of use; the Costco Wholesale of component devices; the combination property factor of chip etc.
First Portable household electric chemistry blood sugar test system is the ExacTech that was released by U.S. Medisense company in 1987 in the world, this system adopts ferrocene and derivant thereof as the redox conducting medium, by the screen painting conductive carbon ink at Polyvinylchloride (Polyvinyl Chloride, PVC) on the plastic cement substrate, make apparent size as the blood sugar test paper of pH test paper size, can make on a large scale production.
At present general blood sugar test paper essence is to have printed after the conductive carbon ink bioelectrochemistry enzyme sensor that composite print contains the enzyme coating at some plastic cement substrates again on the market, with so that the electronics that enzyme and glucose response produce uses electric current numeration facility again, the quantity of read electric changes into readings of glucose concentration again.For instance, general electrochemical sensing blood sugar test paper 1 is as shown in Figure 1, mainly formed by substrate 10, conductive layer 11, parameter identification element 12, upper spacer 13 and reaction zone 14, wherein conductive layer 11 is arranged between upper spacer 13 and the substrate 10, and comprise conductive adhesive layer 111 and conductive carbon layer 112, conductive carbon layer 112 is covered on the conductive adhesive layer 111, and it is jointly to be arranged on the first surface 101 of substrate 10.Have more reaction zone 14 at upper spacer 13 and conductive layer 11, it is in order to contacting with conductive layer 11, and can with the generation reaction.And, at an end of the second surface 102 of substrate 10 parameters identification element 12 then, in order to corresponding one group of specific correction parameter values.
Wherein the material of substrate 10 generally trends towards using polyethylene terephthalate (Polyethylene Terephthalate, PET), and this material itself has certain bending physical strength, implements easily machine cuts, is conducive to large-scale production.The heat resisting temperature of this material reaches 120 ℃, relatively is fit to conductive carbon ink and prints hot setting afterwards.Therefore, the working electrode of general blood sugar test paper is taked the carbon ink material more.And use and operate for the ease of the user, the thickness of substrate 10 can be controlled in 0.34～0.4mm, and the actual length and width size general control of whole electrochemical sensing blood sugar test paper 1 is about 6mm * 30mm.
In addition, in recent years in the making of blood sugar test paper, also begin to adopt the metal materials such as gold, palladium, platinum, it mainly is with the method for galvanochemistry vacuum sputtering the aforementioned metal material that waits to be uniformly coated on the test paper substrate surface, yet because the cost of these precious metal materials is comparatively high, and the process apparatus of this galvanochemistry vacuum sputtering method is also comparatively expensive, more need suitable technical threshold, thereby more do not conform with large-scale production effect with this processing procedure.
In order to overcome above-mentioned technical bottleneck, generally all conductive carbon ink is adopted with screen printing technology, reduce manufacturing cost with this processing procedure.Adopting the made blood sugar test paper of this screen printing technology 1 is as shown in Figure 2, wherein, is laid with conductive layer 11 on the substrate 10 of electrochemical sensing blood sugar test paper 1, and this conductive adhesive layer 111 is to be represented by dotted lines, and this conductive carbon layer 112 is to represent with solid line.Conductive carbon layer 112 is adopted screen printing technology and is coated on the conductive adhesive layer 111, and conductive adhesive layer 112 has lower resistance value compared to conductive carbon layer 111, so the length of conductive adhesive layer 112 variable-length district 112a and the resistance value of this electrode are inverse relation, that is conductive adhesive layer variable-length district 112a is longer, and the resistance value of this electrode is just lower.When this electrochemical sensing blood sugar test paper 1 is connected with a sensor device, because the resistance value difference that this device can identification causes because of the variable-length district 112a difference in length of conductive adhesive layer 112, and then confirm whether electrochemical sensing blood sugar test paper 1 is the test paper that matches with sensor device.
Yet, known adopting with the made electrochemical sensing blood sugar test paper 1 of screen painting process technique, though can reduce production costs, problem and the total coefficient of variation CV of blood sugar test paper with fine ratio of product are difficult to be controlled in 4% with interior difficulty.For instance; because the size microminiaturization of electrochemical sensing blood sugar test paper; so that the conductor width of its adjacent electrode also with reduce; yet; screen printing technology need be subject to thickness and the mesh size of its silk thread when printing; if mesh too detailed rules and regulations may make printing ink clog too tiny mesh; in general; in order to make printing ink can see through the made screen cloth of stainless steel wire; mesh on the screen cloth must be through accurate calculating; intensive as much as possible on the one hand, keep again on the one hand certain live width, usually can be provided with 400 * 400 mesh at the screen cloth of every square of inch.With the fabrography of present more normal usefulness, its resolution approximately can reach 40 microns, but this printing technology is easy to cause two adjacent lines to produce the phenomenon of mutual short circuit, and then has influence on fine ratio of product.In addition, blood sugar test paper generally is a kind of " dried reagent " test paper, so the reagent on the test paper is combined with strict demand, the reagent that contains biology enzyme like that must be blended in the carbon ink of working electrode, but is to be beyond one's reach with present web plate technology.This shows the real bottleneck that has the problem that can't promote yield and be subject to the live width technical limitation of electrochemical sensing blood sugar test paper that traditional screen printing technology is made.
In view of this, the present invention is for solving this technical bottleneck problem, is that a kind of blood sugar test paper conductive layer method for making is provided, and makes all conductive layers of blood sugar test paper with little drop ink-jet technology processing procedure, is provided with utilizing on this industry.
Summary of the invention
The object of the present invention is to provide a kind of blood sugar test paper conductive layer manufacture method that adopts little drop ink-jet technology, by first little drop device and second little drop device with little drop single-point spray printing or the mode of many spray printing points, sequentially the little drop of conducting resinl and the little drop of conducting medium are sprayed in the vectorial conductive layer dispensing area of test paper, more easy to reach the production, the manufacture process that make the blood sugar test paper conductive layer, and it is low and be easy to mass-produced purpose to have a cost.
For reaching above-mentioned purpose, of the present invention one implements aspect for a kind of manufacture method of blood sugar test paper conductive layer is provided than broad sense, and comprise the following step: test paper medium (a) is provided, and test paper medium has the conductive layer dispensing area; (b) provide first little drop device, first little drop is installed on the interior mode with the single-point spray printing of conductive layer dispensing area and sprays the little drop of conducting resinl, to form conductive adhesive layer; And (c) provide second little drop device, second little drop to be installed on that the mode with the single-point spray printing sprays the little drop of conducting medium on the conductive adhesive layer, to form conductive carbon layer.
For reaching above-mentioned purpose, of the present inventionly anotherly implement aspect for a kind of manufacture method of blood sugar test paper conductive layer is provided than broad sense, comprise the following step: test paper medium (a) is provided, and test paper medium has the conductive layer dispensing area; (b) provide first little drop device, first little drop is installed on the interior mode with many spray printing points of conductive layer dispensing area and sprays the little drop of conducting resinl, to form conductive adhesive layer; And (c) provide second little drop device, second little drop to be installed on that the mode with many spray printing points sprays the little drop of conducting medium on the conductive adhesive layer, to form conductive carbon layer.
Description of drawings
Fig. 1: it is the structural representation of known electric chemical sensing blood sugar test paper.
Fig. 2: it is the structural representation of the electrochemical sensing blood sugar test paper of known employing screen printing technology.
Fig. 3: it is the manufacturing flow chart of the blood sugar test paper conductive layer of the present invention's the first preferred embodiment.
Fig. 4: it is the vectorial structural representation of test paper of the present invention's the first preferred embodiment.
Fig. 5: it is the structural representation of first little drop device of the present invention's the first preferred embodiment.
Fig. 6: it is the plan structure synoptic diagram of first little drop device of the present invention's the first preferred embodiment.
Fig. 7: it is the manufacturing flow chart of the blood sugar test paper conductive layer of the present invention's the second preferred embodiment.
Electrochemical sensing blood sugar test paper: 1
Substrate: 10,30
First surface: 101
Second surface: 102
Conductive layer: 11,31
Conductive adhesive layer: 111,312
Conductive carbon layer: 112,313
Variable-length district: 112a
Parameter identification element: 12
Upper spacer: 13
Reaction zone: 14
Test paper medium: 3
Conductive layer dispensing area: 311
First little drop device: 4
The first cavity: 40
First flow: 401
Holding part: 402
Depressed part: 403
The second cavity: 441
Body: 411
The second runner: 411a
Runner exit: 411b
Spray orifice element: 412
Nozzle bore: 412a
Actuation element: 413
Flexible circuit board: 43
The first electrode: 431
The second electrode: 432
End: 431a, 431b, 432a, 432b
Make the step of blood sugar test paper conductive layer with little drop ink-jet technology: S20～S22, S50～S52
Embodiment
Some exemplary embodiments that embody feature ﹠ benefits of the present invention will be described in detail in the explanation of back segment.Be understood that the present invention can have in different aspects various variations, its neither departing from the scope of the present invention, and explanation wherein and graphic be when the usefulness that explain in itself, but not in order to limit the present invention.
See also Fig. 3, it is the manufacturing flow chart of the blood sugar test paper conductive layer of the present invention's the first preferred embodiment, as shown in the figure, at first, system provides a test paper medium 3 (as shown in Figure 4) shown in step S20, and these test paper medium 3 cordings have a conductive layer dispensing area 311; Then, for another example shown in the step S21, one first little drop device 4 (as shown in Figure 5) is provided, this first little drop device 4 in the conductive layer dispensing area 311 of this test paper medium 3 of correspondence in the mode of single-point spray printing, spray the little drop of a conducting resinl (not graphic), to form a conductive adhesive layer 312; At last, for another example shown in the step S22, one second little drop device (not graphic) is provided, this second little drop device also on the conductive adhesive layer 312 of this test paper medium 3 of correspondence in the mode of single-point spray printing, spray the little drop of a conducting medium (not graphic), on conductive adhesive layer 312, to form a conductive carbon layer 313, thus, then finish the blood sugar test paper conductive layer 31 that the present invention makes with little drop ink-jet technology whereby.
See also Fig. 4, it is the vectorial structural representation of test paper of the present invention's the first preferred embodiment.As shown in the figure, test paper medium 3 of the present invention for example can be an electrochemical sensing blood sugar test paper, but not as limit.This test paper medium 3 be by a substrate 30 and on 31 of conductive layers laying jointly form, wherein, the material system of this substrate 30 can be polyethylene terephthalate (Polyethylene Terephthalate, PET), polypropylene (Polypropylene, PP), polycarbonate (Polycarbonate, PC), the material such as Polyvinylchloride (Polyvinyl Chloride, PVC), but not as limit.And because the material such as aforementioned has certain bending physical strength, implement easily machine cuts, thereby be conducive to large-scale production, and the heat resisting temperature of these materials reaches 120 ℃, be more suitable for the hot setting of electrically conductive ink spray printing after complete.
See also Fig. 5, it is the structural representation of first little drop device of the present invention's the first preferred embodiment.
As shown in the figure, this first little drop device 4 mainly is comprised of the first cavity 40 and the second cavity 41, wherein the first cavity 40 has first flow 401, holding part 402 and depressed part 403, first flow 401 is to run through the first cavity 40 to arrange, holding part 402 is arranged at contiguous first flow 401, in order to accommodating one drive circuit plate 42, be arranged at the first cavity 40 bottoms as for 403 of depressed parts, use for the second cavity 41 to be connected setting with the first cavity 40.
The second cavity 41 has body 411, spray orifice element 412 and actuation element 413, wherein body 411 has the second runner 411a, the second runner 411a system runs through body 411 and arranges, and be connected with the first flow 401 of the first cavity 40, and spray orifice element 412 directly is arranged on the body 411 and have nozzle bore 412a, and nozzle bore 412a arranges corresponding to the runner exit 411b (as shown in Figure 6) of the second runner 411a, can be a piezoelectric element as for 413 of actuation elements, but not as limit, it is arranged on the spray orifice element 412 and is surrounded on around the nozzle bore 412a.
See also Fig. 6, it is the plan structure synoptic diagram of first little drop device of the present invention's the first preferred embodiment.In present embodiment, first little drop device 4 more can arrange a flexible circuit board 43 on actuation element 413.As shown in Figure 6, flexible circuit board 43 pasterns divide on the lower surface that is covered in actuation element 413, and have the first electrode 431 and the second electrode 432, wherein, flexible circuit board 43 can utilize the modes such as attaching, adhesion or welding to be arranged on the actuation element 413, but not as limit.The first electrode 431 and the second electrode 432 are a plane electrode and have respectively two end 431a, 431b and 432a, 432b, wherein an end 431a of the first electrode 431 and the second electrode 432 and 432a are connected with spray orifice element 412 and actuation element 413 respectively, then are connected with drive circuit board 42 as for another opposed end 431b and the 432b of the first electrode 431 and the second electrode 432.
In other embodiment, first little drop device 4 also in the lateral wall (not graphic) of the second runner 411a of the terminal madial wall (not graphic) of the first flow 401 of the first cavity 40 and the second cavity 41 respectively correspondence one male thread and a box thread are set, make the first cavity 40 and the second cavity 41 can see through this mutually public affairs/box thread of correspondence, and directly lock and connect in the mode of rotating, whereby to reach the purpose that allows the user can be easy to change the second cavity 41.
As for second little drop device, because its structure system is identical with the first little drop device 4, its difference only is wherein little drop material difference of conveying spray, so repeat no more in this.
In addition when first little drop device 4 and second little drop device start, mainly be with 21～37kHz and 40～47kHz operation frequency, the ejection diameter is 140～24 mu m range spray printing points smoothly, the XYZ precise mobile platform (not graphic) of arranging in pairs or groups again simultaneously is to control the little drop of conducting resinl that first little drop device 4 and second little drop device sprayed and the little drop of conducting medium in the conductive layer dispensing area 311 of test paper medium 3.
See also Fig. 7, it is the manufacturing flow chart of the blood sugar test paper conductive layer of the present invention's the second preferred embodiment, as shown in the figure, at first, system provides a test paper medium 3 (as shown in Figure 4) shown in step S50, and these test paper medium 3 cordings have a conductive layer dispensing area 311; Then, for another example shown in the step S51, one first little drop device 4 (as shown in Figure 5) is provided, this first little drop device 5 in the conductive layer dispensing area 311 of this test paper medium 3 of correspondence in the mode of many spray printing points, spray the little drop of a conducting resinl (not graphic), to form a conductive adhesive layer 312; At last, for another example shown in the step S52, one second little drop device (not graphic) is provided, this second little drop device also on the conductive adhesive layer 312 of this test paper medium 3 of correspondence in the mode of many spray printing points, spray the little drop of a conducting medium (not graphic), on conductive adhesive layer 312, to form a conductive carbon layer 313, thus, then finish the blood sugar test paper conductive layer 31 that the present invention makes with little drop ink-jet technology whereby.
In sum, the manufacture method of blood sugar test paper conductive layer of the present invention mainly by two identical first little drop devices and second little drop device sequentially on test paper medium with single-point spray printing or the mode of many spray printing points, sequentially the little drop of conducting resinl and the little drop of conducting medium are sprayed in the conductive layer dispensing area, cause product yield to hang down disappearances such as reaching the live width Technology Restriction by this conductive layer coating method to break through passing screen painting manufacturing conductive layer, and then make the production of blood sugar test paper conductive layer, manufacture process is more easy, and it is low and be easy to mass-produced advantage to have a cost.
The present invention must be thought and is to modify right neither taking off such as Protector that attached claim is wanted as all by the personage Ren Shi craftsman who has the knack of this technology.
Claims (10)
1. the manufacture method of a blood sugar test paper conductive layer comprises the following step:
(a) provide a test paper medium, this test paper medium has a conductive layer dispensing area;
(b) provide one first little drop device, this first little drop is installed on the interior mode with the single-point spray printing of this conductive layer dispensing area and sprays the little drop of a conducting resinl, to form a conductive adhesive layer; And
(c) provide one second little drop device, this second little drop is installed on that the mode with the single-point spray printing sprays the little drop of a conducting medium on this conductive adhesive layer, to form a conductive carbon layer.
2. the manufacture method of blood sugar test paper conductive layer as claimed in claim 1 is characterized in that the frequency that this first little drop device and this second little drop device spray the little drop of this conducting resinl and the little drop of this conducting medium is 21～37kHz and 40～47kHz.
3. the manufacture method of blood sugar test paper conductive layer as claimed in claim 1 is characterized in that the diameter of the little drop of this electricity glue and the little drop of this conducting medium is in fact between 140～24 μ m.
4. the manufacture method of blood sugar test paper conductive layer as claimed in claim 1 is characterized in that the little drop of this conducting resinl is an elargol.
5. the manufacture method of blood sugar test paper conductive layer as claimed in claim 1 is characterized in that the little drop of this conducting medium is any one that is comprised of benzoquinones, the potassium ferricyanide, ferrocene, metallic conduction compound.
6. the manufacture method of a blood sugar test paper conductive layer comprises the following step:
(a) provide a test paper medium, this test paper medium has a conductive layer dispensing area;
(b) provide one first little drop device, this first little drop is installed on the interior mode with many spray printing points of this conductive layer dispensing area and sprays the little drop of a conducting resinl, to form a conductive adhesive layer; And
(c) provide one second little drop device, this second little drop is installed on that the mode with many spray printing points sprays the little drop of a conducting medium on this conductive adhesive layer, to form a conductive carbon layer.
7. the manufacture method of blood sugar test paper conductive layer as claimed in claim 6 is characterized in that the frequency that this first little drop device and this second little drop device spray the little drop of this conducting resinl and the little drop of this conducting medium is 21～37kHz and 40～47kHz.
8. the manufacture method of blood sugar test paper conductive layer as claimed in claim 6 is characterized in that the diameter of the little drop of this electricity glue and the little drop of this conducting medium is in fact between 140～24 μ m.
9. the manufacture method of blood sugar test paper conductive layer as claimed in claim 6 is characterized in that the little drop of this conducting resinl is an elargol.
10. the manufacture method of blood sugar test paper conductive layer as claimed in claim 6 is characterized in that the little drop of this conducting medium is any one that is comprised of benzoquinones, the potassium ferricyanide, ferrocene, metallic conduction compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101993520A CN102866183A (en) | 2011-07-08 | 2011-07-08 | Manufacturing method of conductive layer of blood glucose test strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101993520A CN102866183A (en) | 2011-07-08 | 2011-07-08 | Manufacturing method of conductive layer of blood glucose test strip |
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| CN102866183A true CN102866183A (en) | 2013-01-09 |
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| CN2011101993520A Pending CN102866183A (en) | 2011-07-08 | 2011-07-08 | Manufacturing method of conductive layer of blood glucose test strip |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023343A (en) * | 2004-08-20 | 2007-08-22 | 诺和诺德公司 | Manufacturing process for producing narrow sensors |
| US20080035478A1 (en) * | 2006-08-11 | 2008-02-14 | Greta Wegner | Methods for fabricating a biosensor with a surface texture |
| TW200809187A (en) * | 2006-07-18 | 2008-02-16 | Home Diagnostics Inc | Diagnostic strip coding system with conductive layers |
| US20090294302A1 (en) * | 2008-05-28 | 2009-12-03 | John Pasqua | Use of Alginate to Reduce Hematocrit Bias in Biosensors |
-
2011
- 2011-07-08 CN CN2011101993520A patent/CN102866183A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023343A (en) * | 2004-08-20 | 2007-08-22 | 诺和诺德公司 | Manufacturing process for producing narrow sensors |
| TW200809187A (en) * | 2006-07-18 | 2008-02-16 | Home Diagnostics Inc | Diagnostic strip coding system with conductive layers |
| US20080035478A1 (en) * | 2006-08-11 | 2008-02-14 | Greta Wegner | Methods for fabricating a biosensor with a surface texture |
| US20090294302A1 (en) * | 2008-05-28 | 2009-12-03 | John Pasqua | Use of Alginate to Reduce Hematocrit Bias in Biosensors |
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Application publication date: 20130109 |