KR20180102249A - Chemical reaction leak sensor sensing leak material by chemical reaction - Google Patents

Abstract

The present invention comprises: a base film layer having leading wires spaced from each other at regular intervals on the top surface; and a reaction layer including a polymer resin formed on the base film layer and decomposing or dissolving by reacting with a leaking substance to be sensed and a pH dye changing a color thereof by reacting with the leaking substance. An alarm is generated when the leaking substance reacts with the polymer resin to decompose or dissolve the polymer resin and comes in contact with the leading wire.

Description

TECHNICAL FIELD [0001] The present invention relates to a chemical reaction leak sensor for detecting a leaking substance by a chemical reaction,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a leak sensor, and more particularly, to a chemical reaction leak sensor capable of accurately detecting a leaked material within a short time by generating a color change and an alarm signal by a chemical reaction with a leak material .

Companies producing and handling chemicals are constantly experiencing large and small casualties, economic losses and environmental damage. As a countermeasure against these accidents, the Chemical Substance Control Act was enforced in January 2015. However, despite the implementation of the Chemical Substance Control Act, accidents are still occurring due to the release of harmful substances.

Recently, the Ministry of Environment and the chemical handling and management company are looking for measures and measures to reduce these accidents. As an alternative, a method of confirming the leakage of toxic chemicals has been suggested. Under such circumstances, various leak sensors such as a cable type leak sensor, a band film type leak sensor, a modular leak sensor and the like have been proposed or released.

The present invention relates to a leak detection sensor and a leakage detection device including the leak detection sensor, and more particularly, to a leakage detection device including the alkaline solution, To a leak sensing sensor which additionally electronically prints a conductive wire made of carbon on a conductive material.

Korean Unexamined Patent Publication No. 10-2014-0099643 (published on Aug. 13, 2014) discloses an apparatus for detecting an acidic solution leaked from a base film layer made of a film material, A pair of conductive lines formed side by side and a coating layer applied to the upper surface of the base film layer so that the conductive line is not exposed to the outside by the substance dissolved by the acidic solution, When dissolved by the acidic solution and the conductive lines are energized with each other, the remote controller can check the energized state to check the leakage state of the acidic solution.

However, according to these prior art documents, it is difficult to detect leaks within a short period of time due to the nature of constituents of the coating layer upon leakage of harmful substances, thereby causing problems such as human injury, industrial damage and environmental damage. There is a difficult problem.

1. Registration Practical Utility Model No. 20-0471278 (Announced on February 11, 2014) 2. Korean Publication No. 10-2014-0099643 (published on Aug. 13, 2014)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a chemical reaction leak sensor capable of detecting a leaking substance within a short time with a color change due to a rapid chemical reaction with a leaking substance.

It is another object of the present invention to provide a chemical reaction leak sensor capable of accurately detecting whether an alarm is generated or a malfunction due to the detection of harmful substances even when an alarm is generated by introducing a pH dye into the reaction layer.

In order to accomplish the above object, an embodiment of the present invention provides a semiconductor device comprising: a base film layer provided on a top surface thereof with conductors spaced apart from each other at regular intervals; and a base film layer formed on the base film layer, And a reaction layer containing a dissolved polymer resin and a pH dye whose color changes in response to the leaking substance, wherein the leaking substance reacts with the polymer resin to decompose or dissolve the polymer resin, And a chemical reaction leak sensor is provided.

The sensor may further include a protection layer formed on the reaction layer and functioning to protect the sensor from external stimulus and having a sensing hole through which the leakage material flows.

The absorbent layer may further include an absorbent layer formed between the reaction layer and the protective layer and absorbing the leaking material introduced through the sensing hole to improve a contact force between the leaking material and the lead wire.

According to the present invention, it is possible to provide a leak sensor capable of detecting leakage or leakage within a short time by introducing a polymer resin capable of a quick chemical reaction with a leakage material into the reaction layer.

Further, according to the present invention, by introducing a pH dye that causes a color change upon reaction with an acid or a base in a reaction layer, it can be confirmed that a harmful substance has leaked due to a change in color when an alarm is generated. It is possible to provide a leak detection sensor.

1 is an exploded perspective view of a leak detection sensor according to an embodiment of the present invention.
FIG. 2 is a view showing various patterns of conductors according to an embodiment of the present invention.
FIG. 3 shows a leak detection sensor according to an embodiment of the present invention in which an identification mark is displayed.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail to the concrete inventive concept. It is to be understood, however, that the intention is not to limit the invention to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, the terms first, second, A, B, (a), (b), and the like can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

In addition, when an element such as a layer, film, region, plate, or the like is referred to as being "on" or "on" another element, And the like. On the contrary, when an element is referred to as being "directly on " another element, it should be understood that it does not have another element in the middle.

Hereinafter, a leak detection sensor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a leak detection sensor according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a pattern of a wire according to an embodiment of the present invention. 1 is a perspective view of a leak detection sensor according to an embodiment of the present invention.

1 and 2, a leak sensor 100 according to an exemplary embodiment of the present invention includes a base film layer 110, a reaction layer 130 formed on the base film layer 110, An absorbing layer 140 formed on the layer 130 and a protective layer 150 formed on the absorbing layer 140.

The chemical reaction leak sensor 100 of the present invention is a film type sensor that can be installed around a chemical storage tank facility, around a semiconductor facility, on a cable surface, on a tube surface, and on a wall or floor.

The base film layer 110 is formed of a chemical resistant film layer such as Teflon, PU, PI, PE, PP, PET or the like, and has conductors 120 and 121 on its upper surface.

The conductors 120 and 121 may be spaced apart from each other at regular intervals and may be provided on the upper surface of the base film layer 110 in a longitudinal direction. The conductors 120 and 121 may be formed in various shapes such as a pulse shape, a dry mode pulse, an outer ladder shape, a gear shape, a saw tooth shape, and a wavy shape as shown in FIG.

When the conductors 120 and 121 are formed not in a straight line but in a pattern as shown in Fig. 2, the contact force between the conductors 120 and 121 due to the opposing alignment structure is improved, thereby maximizing the energizing effect .

These conductive lines 120 and 121 may be formed by printing a conductive material such as Au, Ag, Ni, Al, Ni, and carbon black.

A reaction layer 130 is formed on the base film layer 110. The reaction layer 130 includes a polymer resin and a pH dye. The polymer resin is a substance that decomposes or dissolves by reacting with a leaking substance, and the composition and composition ratio may be different depending on whether the substance to be detected is an acidic substance or a basic substance.

For example, when the leaked substance to be sensed is an acidic substance, the polymer resin may be a polyacrylic resin, a polyepoxy resin, a poly (D, L-lactide), a nylon-6 (poly- epsilon -caprolactam), a nylon- Hexamethylene adipamide), polycarbonate, cellulose, poly (vinyl acetate) and polysiloxane derivatives. If the substance to be detected is a basic substance, the polymer resin may be a polyhydric phenol-modified resin, a modified At least one selected from the group consisting of polyacrylic resin, modified polyalkyl acetate and nitrocellulose.

Since the reaction layer 130 forming the leak sensor is formed of a material such as PET, PE, PTFE, PVC, or other Teflon-based materials, the conventional products known in the market have low degradability and solubility to leaked acidic or basic substances, It took a relatively long time for the chemical material to flow between the conductors 120 and 121. If it takes a long time to detect a leaked chemical, it increases the possibility of causing personal injury, industrial loss, and environmental damage.

Accordingly, in order to solve the problems of the prior art, the present invention introduces a polymer resin capable of rapidly reacting with a toxic substance leaking into the reaction layer 130. That is, depending on whether the leaking substance is acidic or basic, the reaction layer 130 is decomposed or dissolved in a short time by appropriately introducing the polymer resin capable of rapidly chemical reaction with the leaking substance, 121 and the conductive lines 120, 121 provided in the conductive lines 110, 110, respectively.

When the reaction layer 130 is dissolved in such a short time and the solution comes into contact with the leads 120 and 121 and flows into the spaces between the leads 120 and 121, a resistance change occurs and an alarm signal or the like is generated. Can be detected within a few seconds to a few minutes, so that it is possible to minimize the damage to people and damage to the industry.

On the other hand, an alarm of the leak detection sensor 100 may occur due to the inflow of fine dust or moisture around the leak detection sensor 100. In particular, in an environment where a very fine alarm setting condition is required, the leak detection sensor 100 has high probability of malfunction of the alarm. In this way, it is necessary to accurately detect leakage in order to minimize the loss due to the malfunction of the alarm even though the actual harmful substance has not leaked.

Based on this necessity, the present invention introduces a pH dye into one component of the reaction layer 130. That is, when a toxic substance leaking out is acidic, a pH dye that causes a color change to an acidic substance is introduced into the reaction layer 130, and when the toxic substance leaking is basic, a pH dye, which causes a color change in a basic substance, Layer 130 as shown in FIG. Thus, by appropriately introducing the pH dye according to the acidity of the object to be leak-detected, the leaking substance chemically reacts with the pH dye, resulting in a color change, and such color conversion material remains on the lower conductors 120, So that it is possible to accurately grasp the leakage. If there is no color change even though the alarm is activated, it can be detected as an alarm malfunction. If a color change occurs with an alarm, it can be confirmed that harmful substances have leaked.

PH dyes that can be used to detect the leaking of acidic hazardous materials include methyl violet, Crystal Violet, ethyl violet, Brilliant Green, Malachite Green Oxalate malachite green oxalate, methyl green, quinialdine red, methanil yellow, 4-phenylazodiphenyl amine, cresol red, thymol Thymol blue, p-Phenylazoaniline, Erithrosine B, besnzopurpurin 4B, Stains-all, Orange IV (Orange IV), Phloxine B, 2,4-Dinitrophenol, Methyl yellow, Bromophenol blue, Congo red, Methyl Methyl orange, Bromocresol green, alpha-Naphthyl r, at least one selected from the group consisting of ed, methyl red, Litmus azolitmin, bromocresol purple and Leuco dye. These pH dyes chemically react with the leaking material when the leaking material is acidic, resulting in color change.

On the other hand, in order to detect the leakage of basic harmful substances, it is necessary to detect the leakage of the harmful substances such as Alizarin, Bromothymol blue, Phenol red, Brilliant yellow, Cresol red, Neutral Red, m-Nitrophenol, Curcumin, m-Cresol purple, 2,6-dibanylidene cyclohexanone (cyclobalone) (2, 6-Divanillyldenecyclohexanone (Cyclovalone), Thymol blue, o-Cresolphthalein, p-Naphtholbenzein, Phenolphthalein, Nylon Blue A, Alizarin yellow R, Malachite Green Hydrochloride (manufactured by Dainippon Ink and Chemicals, Inc.) Malachite green hydrochloride, Methyl blue, Sodium indigo sulphonate, orange G, 2,4,6-trinitrotoluene, and 1,3,5-trinitrobenzene. It is preferred to use one or more selected pH dyes.

Preferably, in the case of a leak sensor for detecting an acid leaking substance, a basic substance such as a sodium organo carboxylate derivative is further introduced into the reaction layer 130, and a basic leaking substance- In the case of the sensor, an acidic carboxylic acid derivative can be further introduced.

When a substance having a property opposite to that of the substance to be detected is additionally introduced into the reaction layer 130, when the leakage substance reaches the reaction layer 130, an acid base reaction occurs and a gap is generated in the polymer resin. It is possible to reach the conductors 120 and 121 in a shorter time.

In addition, an amphoteric oxide, which reacts well with both acid and base, such as ZnO and Al ₂ O ₃ , can be further introduced into the reaction layer 130. For example, when a metal element such as Al, Si, Sn, Pb, As, Zn, or an oxide of a non-metal element is added to the reaction layer 130, the acid base reaction proceeds more quickly in the reaction layer 130, The detection time can be shortened.

When the amphoteric material is ZnO or Al ₂ O ₃ , the leaking substance and the amphoteric substance react as shown in the following reaction formula.

<In case of ZnO>

If the spill material is acidic: ZnO + 2H ⁺ → Zn ^{2 +} + H ₂ O

If the spill material is basic: ZnO + H ₂ O + 2 OH → [Zn (OH) ₄ ] ²

<When the Al ₂ O _3>

When the leaking substance is acidic: Al ₂ O ₃ + 3 H ₂ O + 6 H ₃ O ⁺ → 2 [Al (H ₂ O) ₆ ] ³⁺

If the spill material is basic: Al ₂ O ₃ + 3 H ₂ O + 2 OH → 2 [Al (OH) ₄ ]

As can be seen from the above equation, the amphoteric oxide reacts with acidic or basic leachable materials, so that it can be used regardless of whether it is an acidic solution sensing sensor or a basic solution sensing leakage sensor.

Further, it is also possible to further introduce an absorbent into the reaction layer 130 to promote absorption of the leaking material.

Also, it is preferable that a protective layer 150 for protecting the coated / printed film from external stimuli such as external heat, impact, ultraviolet rays, etc. is provided on the reaction layer 130. In the protective layer 150, a sensing hole 151, which is an inflow path of a harmful chemical substance to be sensed, may be formed in a predetermined pattern. The sensing holes 151 may be formed in parallel with one or two or more lines at regular intervals, or may be formed in a predetermined pattern such as a circle, an ellipse, or a straight line, but it is preferable that the sensing holes 151 are formed in a straight line .

Preferably, the band-type leak sensor according to the present invention may discolor or discolor due to ultraviolet rays, and therefore, the protective layer 150 may be provided with a component for blocking ultraviolet rays or may be coated with a film.

The reaction layer 130 may be formed of a material having a high reactivity with the reaction layer 130. The reaction layer 130 may be formed of a material having a high reactivity with the reactive layer 130, An absorbing layer 140 may be further provided. That is, the leakage material introduced through the sensing hole 151 is in contact with the reaction layer 130 immediately below the sensing hole 151, but is in contact with the reaction layer 130 for a long time , Which may result in a delay in detecting the leaked material. Thus, it is desirable to introduce the absorbent layer 140 so that the leaking material can contact the reactive layer 130 over a large area within a relatively short period of time. The absorbent layer 140 may be formed of an absorbent, a swelling agent, a nonwoven fabric, a paper, a fabric, or the like, and may serve as a protective layer 150 for protecting a coated / printed film from external stimuli.

Also, preferably, as shown in FIG. 3, the upper surface or the uppermost portion of the protective layer 150 may have a length or a specific identification mark at regular intervals based on the starting portion. When the identification mark or the like is displayed in this way, the moving distance of the leakage material can be easily known.

Hereinafter, the present invention will be described by way of examples, but the present invention is not intended to limit the scope of the present invention in order to facilitate understanding of the present invention.

1. For detection of basic leaks Leak  sensor

< Comparative Example  1> Leak  Sensor manufacturing Example

First, a conductive line is printed with a conductive ink or a silver compound in parallel in the longitudinal direction, spaced apart from each other on the upper surface of a base film made of PET, PE, PTFE, PVC, or Teflon.

Next, a mixed solution of 70 to 80% by weight of a polyurethane resin and 20 to 30% by weight of a polystyrene resin is coated to a thickness of 6 to 10 탆 so as to cover the top of the conductive line.

Then, a leak detection sensor is fabricated by laminating a material such as PET, PE, PTFE, PVC, or Teflon in which a sensing hole is formed at a predetermined interval in a position corresponding to a conductive line on the coating layer.

< Comparative Example  2> Leak  Sensor manufacturing Example

A first conductive wire and a second conductive wire having a thickness of 5 탆 to 7 탆 and made of Ag material are electrically printed on the upper surface of the base film and dried at room temperature for 10 minutes, The third and fourth conductive wires are printed with the paste of the same material and the same thickness and thickness as the first and second conductive wires over the first and second conductive wires and dried again at room temperature for 10 minutes.

When drying is completed, it is composed of 10% to 34% of polymer resin (PET, PC, PMMA, ABS, PTFE, PEI, PI, PU), 65% to 85% of solvent and 1% to 5% A conductive sensing layer is printed to complete the leak sensing sensor.

Detection time measurement result according to alkali concentration

The time required for detecting the leaking substance in the leak detection sensor manufactured according to Comparative Example 1 and Comparative Example 2 was as shown in Table 2 according to the alkali concentration of the leaking substance (basicity of the leaking substance).

[Table 2]

From the above Table 2, it can be seen that the time required for the leak sensor to detect the basic leaking substance depends on the basicity (NaOH concentration) of the leaking substance according to Comparative Example 1 and Comparative Example 2, but it takes at least 2 hours It can be seen that it takes more than 24 hours. That is, according to the comparative example 1 and the comparative example 2, it is understood that the leaking substance is detected after a considerably long time after the leakage of the basic substance to be sensed.

< Example  1 > to < Example  24>

Example of Leak Sensor Fabrication

First, a PET film having a thickness of 50-150 mu m, a width of 1200 mm, and a length of 1000 m was prepared as a base film layer.

Next, the base film layer is placed in a gravure printing machine, and commercial silver paste is printed in two layers at an interval of 4 mm with a thickness of 3-5 탆. At this time, silver wires were printed under conditions of a roller temperature of 80 캜, a speed of 100 m / min, and high pressure.

Thereafter, the base film layer on which the silver lead wire was printed was again placed in a gravure printing machine, and the mixed polymer resin was put in a printing machine and printed at a thickness of 3-5 탆 to form a reaction layer film. The components of the leak sensor reaction layer for detecting basic leaking substances are shown in Table 3 according to Examples 1 to 24.

Finally, a protective layer was formed by laminating a UV protective film having a detection hole formed on the printed film of the reaction layer.

[Table 3]

In Table 3, the composition and composition ratios of Phenolic resin, SST-PENY-ND1 ink, SST-PENY-NDY ink, SST-PENY-NDB ink, pH DYE, Leveling agent, dispersant and defoamer are shown in Table 4 below.

[Table 4]

Detection time measurement result according to alkali concentration

As a result of measuring the time required for detecting the basic leaking substance by the leak sensor manufactured according to Examples 1 to 24 of Table 3, it was found that the time required for detecting the basic leaking substance was measured according to the alkali concentration (basicity of the leaking substance) It was the same.

[Table 5]

As can be seen from Table 5, it took several seconds to several minutes for the leak detection sensor manufactured according to the embodiment of the present invention to detect the basic leakage material, and the higher the basicity of the leakage material, .

In addition, even though the constituent components of the reaction layer are the same, the detection time varies depending on the composition ratio, especially the amount of phenol resin and the ratio of SST-PENY ND1 ink. As the amount of phenolic resin increases and the amount of SST- The time required for substance detection was small.

Therefore, it can be seen that the leak detection sensor manufactured according to the embodiment of the present invention detects a basic leakage material in a much shorter time than the leakage detection sensors of Comparative Example 1 and Comparative Example 2 of Table 2. [

2. For detecting acid leaks Leak  sensor

< Comparative Example  3> Leak  Sensor manufacturing Example

Prepare a base cable that is a lobe that is made by inserting the tube into two strands of the feedback wire with a hot melting insulator. Then, a sensor wire is fabricated by coating a hot-melted conductive polymer on a sensor wire of a smaller diameter.

Then, the polymer dissolved or dissolved in the water soluble chemical substance is coated again on the sensor wire coated with the conductive polymer prepared above. These polymeric materials were made of PVC, polyolefin, PVDF, TPE, TPR, CPE, polyester elastomer, PVDF, nylon, PET, polyurethane or fluorine mixed with electrically conductive dispersed carbon particles.

Finally, each cable was spirally or spirally twisted to form a sensing sensor.

< Comparative Example  4> Leak  Sensor manufacturing Example

A first conductive wire and a second conductive wire having a thickness of 5 탆 to 7 탆 and made of Ag material are electrically printed on the upper surface of the base film and dried at room temperature for 10 minutes, The third and fourth conductive lines are printed with the paste of the material on the first and second conductive lines in the same area and thickness as the first and second conductive lines, and dried again at room temperature for 10 minutes. When the drying is completed, a polymer resin solution containing 2 to 30% by weight of a graphene dispersion well dissolved in a slightly acidic solution, 35 to 60% by weight of cationic polystyrene and 35 to 60% by weight of cationic polyurethane, Layer was coated with a thickness of 2 to 20 um on the upper surface of the layer to complete the leak detection sensor.

< Comparative Example  5> Leak  Sensor manufacturing Example

A first conductive line and a second conductive line having a thickness of 5 μm to 7 μm are gravially printed on a base film made of any one of PET, PC, PMMA, ABS, PTFE, PEI, PI and PU using Ag paste or ink. After drying at room temperature for 10 minutes, the carbon powder paste is printed on the paste with the same thickness and width, and then dried again at room temperature for 10 minutes. When the drying is completed, the conductive sensing layer is combined with the base film while covering the conductive line to fabricate a leak sensing sensor.

< Example  25 > and < Example  36> Leak  Sensor manufacturing Example

First, a PET film having a thickness of 50-150 mu m, a width of 1200 mm, and a length of 1000 m was prepared as a base film layer.

Next, the base film layer is placed in a gravure printing machine, and commercial silver paste is printed in two layers at an interval of 4 mm with a thickness of 3-5 탆. At this time, a silver wire was printed under conditions of a roller temperature of 80 캜, a speed of 100 m / min, and a high pressure.

Thereafter, the base film layer on which the silver lead wire was printed was again placed in a gravure printing machine, and the mixed polymer resin was put in a printing machine and printed at a thickness of 3-5 탆 to form a reaction layer film. The composition and composition ratio of the reaction layer are shown in Table 7 below.

Finally, a protective layer was formed by laminating a UV protective film having a detection hole formed on the printed film of the reaction layer.

[Table 7]

In Table 7, the composition and composition ratios of SST-PENY-ND1 ink, SST-PENY-NDY ink, SST-PENY-NDB ink, pH DYE, leveling agent, dispersant and defoamer are shown in Table 7 below.

[Table 8]

Detection time measurement result

Table 9 shows the results of measuring the detection time of the leakage materials using the leak detection sensors manufactured according to Comparative Examples 3 to 5 and Examples 25 to 36. [

[Table 9]

As can be seen from the above Table 9, in Comparative Examples 3 to 5 and Example 31, the leakage material is the same as 70% sulfuric acid and there is a remarkable difference in the time required for detecting the leakage material Able to know. That is, in Example 31 of the present invention, sulfuric acid as a leaking substance was detected within 15 seconds, while in Comparative Examples 3 to 5, a leaking substance was detected after much longer time.

In addition, as can be seen from Examples 26 to 28, when the leaching substance is nitric acid, it can be seen that leaks are detected within a very short time irrespective of the% concentration, , It can be seen that the larger the% concentration is, the less time is required for detection. According to the embodiment of the present invention, it can be understood that the leakage substance can be detected within a very short time regardless of the kind of acid and concentration .

From the above description, it will be understood by those of ordinary skill in the art to which the present invention pertains that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. In this regard, it should be understood that the above-described embodiments and experiments are illustrative in all aspects and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention without departing from the scope of the present invention as defined by the appended claims.

100: leak sensor 110: base film layer
120, 121: lead 130: reaction layer
140: absorbing layer 150: protective layer
151: detection hole

Claims (8)

A base film layer provided on the upper surface with wires spaced apart from each other at regular intervals; And
And a reaction layer formed on the base film layer and including a polymer resin reacting with the leaked substance to be detected and decomposing or dissolving and a pH dye changing its color by reacting with the leaked substance,
And an alarm is generated when the leakage material reacts with the polymer resin to decompose or dissolve the polymer resin and contact the lead. The method according to claim 1,
And a protective layer formed on the reaction layer and having a function of protecting from an external stimulus and having a sensing hole through which the leakage material flows. 3. The method of claim 2,
And an absorption layer formed between the reaction layer and the protection layer and absorbing the leakage material introduced through the detection hole to improve a contact force between the leakage material and the conductive wire. The method according to claim 1,
When the leaking substance is an acidic substance, the polymer resin is selected from the group consisting of polyacrylic resin, polyepoxy resin, poly (D, L-lactide), nylon-6, nylon-66, polycarbonate, cellulose, At least one selected from the group consisting of poly (vinyl acetate) and polysiloxane derivatives (poly siloxane derivatives)
When the leaking substance is a basic substance, the polymer resin may be selected from the group consisting of a polyphenolic modified resin, a modified polyacryl resin, a modified polyalkylacetate and a nitrocellulose Wherein at least one of the at least one chemical reaction detection sensor is selected. The method according to claim 1,
When the leaking substance is an acidic substance, the pH dye may be at least one selected from the group consisting of methyl violet, Crystal Violet, ethyl violet, Brilliant Green, malachite green Oxalate Methyl Green, Quinialdine Red, Methanil yellow, 4-Phenylazodiphenyl amine, Cresol red, Thymol Blue, blue, p-phenylazoaniline, Erithrosine B, besnzopurpurin 4B, Stains-all, Orange IV, Phloxine B, 2,4-Dinitrophenol, Methyl yellow, Bromophenol blue, Congo red, Methyl orange, Bromocresol green, alpha-Naphthyl red, Meth red at least one selected from the group consisting of red fluorescence, red fluorescence, Litmus (azolitmin), bromocresol purple and leuco dye,
When the leaking substance is a basic substance, the pH dye is selected from the group consisting of Alizarin, Bromothymol blue, Phenol red, Brilliant yellow, Cresol red, Neutral Red, m-Nitrophenol, Curcumin, m-Cresol purple, 2,6-dibanylidene cyclohexanone (cyclovalon) (2,6 -Divanillyldenecyclohexanone (Cyclovalone), Thymol blue, o-Cresolphthalein, p-Naphtholbenzein, Phenolphthalein, ethylbis (2,4- Phenyl) acetate, thymolphthalein, Nile Blue A, Alizarin yellow R, Malachite green hydrochloride, ), Methyl blue, sodium indigosulphonate, At least one member selected from the group consisting of G, G, 2,4,6-trinitrotoluene, and 1,3,5-trinitrobenzene, Wherein the chemical reaction detection sensor is a chemical reaction detection sensor. The method according to claim 1,
Wherein the reaction layer further comprises an amphoteric oxide. The method according to claim 1,
When the leaking substance is an acidic substance, the reaction layer further comprises sodium organo carboxylate derivatives,
Wherein when the leaking substance is a basic substance, the reaction layer further comprises carboxylic acid derivatives. 3. The method of claim 2,
Wherein the upper surface or the uppermost surface of the protection layer has a length or an identifier indicating a predetermined interval based on a start portion.

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