JP2005010525A - Submergence detection label, battery pack, and method for manufacturing submergence detection label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a submergence detection label which increases detection precision of a water submerged state, and to provide a battery pack, and a method for manufacturing the submergence detection label. <P>SOLUTION: The submergence detection label with a watertight PET sheet 1 formed on the top surface of a submergence sheet (high-quality paper) 2 coated with water-soluble red ink 4 and with an adhesive 3 for adhesion to equipment whose submergence is to be detected positioned on the reverse surface of the submergence sheet 2, is constituted so that the adhesive 3 is not applied to the reverse surface of the area in which the top surface is coated with the water-soluble red ink 4. Water entering the equipment which is submerged percolates down through the submergence sheet 2 coated with the adhesive 3 which prevents the water from passing to make the water-soluble red ink 4 ooze out, thereby making it easy to visually detect the submerged state. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a submergence detection label, a battery pack, and a submergence detection label manufacturing method, and more particularly to a submergence detection label, a battery pack, and a submergence detection label manufacturing method for improving submergence detection capability.
[0002]
[Prior art]
When electronic equipment such as mobile phones and precision equipment, where rain, water, etc. permeate into the equipment and are prone to failure, are repaired due to failure within the manufacturer's product warranty period, specify the cause of the failure. Therefore, it is necessary to determine whether the manufacturer is responsible for the warranty. For this reason, it is necessary to confirm the background of water wetting that caused the failure, but it is difficult to determine whether or not the failure is a failure caused by contact with water after product shipment. Therefore, a method for discriminating the history of water wetting has been desired, and a submergence detection label has been developed.
[0003]
The submergence detection label is affixed in the vicinity of places that are likely to cause failure due to contact with water, such as connection terminals.Water that has entered the device via the terminal wets the submergence detection label. The applied ink is also wetted, blotted, or discolored to determine the history of wetness of the device.
[0004]
With regard to such a submergence detection label, there are several conventional techniques for accurately determining the history of water wetting.
[0005]
For example, Patent Document 1 discloses an electronic device such as a mobile phone that is likely to fail due to water or the like, a precision device, or a film unit with a lens that significantly impairs recovery and reuse due to water wetting. In order to provide a water-wetting detection method capable of detecting wetting after the fact, with respect to the water-wetting detection label, it comprises at least one electron-accepting color developing compound and an electron-donating color-forming compound. A color former composition that is decolored by contact is coated on a support, and the contact history with water is detected by decoloring the color former composition.
[0006]
In addition, Patent Document 2 discloses that a surface of a water-soluble substrate sheet is provided on the surface of a water-soluble substrate sheet in order to provide a water-wetting detection sheet that can easily determine that the colored layer has been easily discolored by water wetting of the product and has changed after drying. A water-soluble or oil-soluble colored layer is provided, and a water-soluble or water-resistant adhesive layer, a water-resistant substrate sheet, and a water-resistant adhesive layer are provided in this order on the back surface of the water-soluble substrate sheet. The structure which the colored layer is provided in the sheet | seat surface is taken.
[0007]
[Patent Document 1]
JP 2000-105230 A [Patent Document 2]
Japanese Patent Laid-Open No. 07-334082
[Problems to be solved by the invention]
By the way, the submergence detection label for discriminating the history of water wetting is provided with an adhesive for affixing to the device, but since this adhesive generally has water resistance, label the adhesive. If applied evenly, water that has entered the inside of the device will not pass through the adhesive, and as a result, the applied ink will not be smeared or discolored without much wetting of the label.
[0009]
FIG. 6 shows an external view of a generally used submergence detection label. A serial number is stamped on the left side of the label, and water-soluble red ink is printed on the spot at an appropriate interval on the right side of the label. This is to make it easier to visually recognize that the ink has spread in the submerged state.
[0010]
FIG. 7 shows a cross-sectional view of the submergence detection label shown in FIG. 6 when viewed from the cross-section AA. The submergence detection label shown in FIG. 7 includes a PET sheet 1, a submergence sheet (quality paper) 2, an adhesive 9, and water-soluble red ink 4.
[0011]
The PET sheet 1 is waterproof so that moisture does not enter from the outside and the submerged sheet 2 is directly wetted. The PET sheet 1 can be repelled sufficiently if it is wet enough to rain, dew, or sweat. The PET sheet 1 is provided on the surface of the submerged sheet 2.
[0012]
The submerged sheet (quality paper) 2 is a sheet on which the water-soluble red ink 4 described with reference to FIG. 6 is printed. A submerged sheet such as Japanese paper is used. When the water 2 is wet, the water-soluble red ink 4 bleeds so that the submerged state of the device can be visually grasped.
[0013]
The adhesive 9 is for adhering the submergence detection label to a device that is the target of submergence detection, and is provided on the back surface of the submergence sheet 2. The adhesive 3 shown in FIG. 7 is applied to the entire back surface of the submerged sheet 2.
[0014]
However, in the configuration shown in FIG. 7, the moisture that has entered the inside of the device does not pass through the water-resistant adhesive 9. Therefore, if the adhesive 9 is applied to the entire back surface, the submerged sheet 2 is not so wet. Since the water-soluble red ink 4 is not sufficiently blotted and detection of the submerged state becomes ambiguous, the detection accuracy of the submerged state is not so high.
[0015]
Each of the techniques described in Patent Documents 1 and 2 is a technique related to a coloring compound such as an ink, and lacks consideration for increasing the detection accuracy of the submerged state in view of the water resistance of the adhesive.
[0016]
In view of the above circumstances, an object of the present invention is to provide a submergence detection label, a battery pack, and a submergence detection label manufacturing method that facilitate visual detection of a submerged state.
[0017]
[Means for Solving the Problems]
In order to solve such an object, the invention described in claim 1 is characterized in that a water-soluble coloring means is applied to the surface, has water absorption, and detects a submerged state. A submersion characterized in that it has waterproof means provided on the surface and adhesive means provided on the back surface of the submergence detection means, and the coloring means dissolves on the submergence detection means in the submerged state. It is a detection label, The said adhesion | attachment means is provided in the 1st adhesion | attachment area | region of the back surface corresponding to the 1st area | region where the said coloring means is not apply | coated to the said submergence detection means surface, It is characterized by the above-mentioned.
[0018]
According to a second aspect of the present invention, in the submergence detection label according to the first aspect of the invention, the adhesion unit includes a first adhesion region, and the coloring unit is applied to a surface of the submergence detection unit. It is also provided in the second adhesive region on the back surface corresponding to the region 2.
[0019]
The invention described in claim 3 is characterized in that, in the submergence detection label according to claim 1 or 2, the submergence detection label is provided in the vicinity of a connection terminal of a device subject to submergence detection or each means constituting the device. .
[0020]
The invention according to claim 4 is a battery pack having a submergence detection label, wherein the submergence detection label has a first region where water-soluble coloring means is not applied to the surface and a water-soluble coloring means on the surface. A water-absorbing submersion detecting means composed of a second region applied to the surface, a waterproof means provided on the surface of the submergence detecting means, and an adhesive means provided on the back surface of the submergence detecting means. In the submerged state, the coloring unit dissolves on the submerged detection unit, and the bonding unit includes a first adhesive region on the back surface corresponding to the first region. The battery pack housing is provided with a hole, and the submerged label is affixed to the second region and the hole.
[0021]
According to a fifth aspect of the invention, in the battery pack according to the fourth aspect of the invention, the hole is used for a power supply test.
[0022]
The invention according to claim 6 is a first step of applying water-soluble coloring means to the surface of the submergence detecting means that has water absorption and detects a submerged state, and a waterproof means on the surface of the submergence detection means. A submergence detection label for manufacturing a submergence detection label that has a second step of providing and a third step of providing an adhesive unit on the back surface of the submergence detection unit, and in which the coloring unit dissolves on the submergence detection unit in a submerged state In the manufacturing method, in the third step, the coloring means is provided in the first bonding region on the back surface corresponding to the first region that is not applied to the surface of the submergence detecting means. And
[0023]
According to a seventh aspect of the present invention, in the submerged detection label manufacturing method according to the sixth aspect, in the third step, the coloring means is applied to the surface of the submerged detection means in addition to the first adhesion region. The bonding means is also provided in the second bonding region on the back surface corresponding to the second region.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a mobile phone will be taken as an example, and an embodiment of the present invention will be described in detail with reference to the drawings. However, the constituent elements, types, combinations, shapes, relative arrangements, and the like described in the present embodiment are merely illustrative examples rather than the main purpose of limiting the scope of the present invention only to the specific description unless otherwise specified. . Any device that is not limited to a mobile phone and that wants to detect a submerged state may be used.
[0025]
FIG. 6 shows an external view of a submergence detection label described in this embodiment. A serial number is stamped on the left side of the label, and water-soluble red ink is printed on the spot at an appropriate interval on the right side of the label. This is to make it easier to visually recognize that the ink has spread in the submerged state.
[0026]
<Embodiment 1>
FIG. 1 shows a cross-sectional view of the submergence detection label shown in FIG. 6 when viewed from the cross-section AA. The submergence detection label of the present embodiment includes a PET sheet 1, a submergence sheet (quality paper) 2, an adhesive 3, and water-soluble red ink 4. The PET sheet 1 corresponds to the waterproof means described in paragraph 0017, the submerged sheet 2 corresponds to the submerged detection means described in the paragraph, the adhesive 3 corresponds to the adhesive means described in the paragraph, and the water-soluble red ink 4 Corresponds to the coloring means described in the same paragraph.
[0027]
The PET sheet 1 is waterproof so that moisture does not enter from the outside and the submerged sheet 2 is directly wetted. The PET sheet 1 can be repelled sufficiently if it is wet enough to rain, dew, or sweat. In this embodiment, the PET sheet 1 is provided on the surface of the submerged sheet 2.
[0028]
The submerged sheet (quality paper) 2 is a sheet on which the water-soluble red ink 4 described with reference to FIG. 6 is printed. A submerged sheet such as Japanese paper is used. When the water 2 is wet, the water-soluble red ink 4 bleeds so that the submerged state of the mobile phone can be visually grasped.
[0029]
The adhesive 3 is for adhering the submergence detection label to a device (in particular, an electronic pack of a mobile phone) that is a target of submergence detection, and is provided on the back surface of the submergence sheet 2. In this embodiment, the adhesive 3 is not applied to the entire back surface of the submerged sheet 2, but is applied to the back surface outside the range where the water-soluble red ink 4 is applied to the surface to limit the adhesive region. I try to apply.
[0030]
In order to apply such a limited adhesive region, an appropriate masking agent is first applied to the back surface of the region where the water-soluble red ink 4 is applied to the surface, and then the adhesive 3 is applied. It is sufficient to apply to the submerged sheet 2 and to remove the masking agent after the applied state of the applied adhesive 3 is stabilized.
[0031]
Moisture that has entered the interior of the mobile phone generally does not pass through the adhesive 3, and therefore, if the adhesive 3 is applied to the entire surface, the submerged sheet 2 will not be wetted so much that the water-soluble red ink 4 is sufficiently blotted. However, the detection of the submerged state becomes ambiguous, but when water enters due to the limitation of the adhesive region, the submerged sheet 2 will be appropriately wetted in the region where the adhesive 3 is not applied. The red ink 4 bleeds moderately and the accuracy of detection of the submerged state increases.
[0032]
FIG. 2 shows an adhesive surface shape diagram of the present embodiment, which corresponds to a state where the submergence detection label of FIG. 6 is viewed from the back side, and the submerged sheet 2 is viewed from the adhesive 3 side in FIG. It corresponds to the state. The adhesion area to which the adhesive 3 has been applied is hatched as an “adhesive part”. This “adhesive part” corresponds to “first region” described in paragraph 0017. On the other hand, the area where the adhesive 3 is not applied is shaded as “high quality paper”. The “quality paper portion” is a region where the water-soluble red ink 4 is applied to the surface of the submerged sheet 2 and corresponds to a “second region” described in paragraph 0018. As described above, the invading water permeates into the high-quality paper and soaks the water-soluble red ink 4. The area of the high-quality paper portion, that is, the area where the water-soluble red ink 4 is applied is generally described in the dimensions shown in FIG. 2, but is shifted within a range where the submergence detection can be confirmed without being limited to this position. May be.
[0033]
<Specific example>
A specific example of actually using the submergence detection label shown in FIG. The object to which the submergence detection label is attached here is a battery pack 6 for a mobile phone. The side view of the battery pack 6 is described in the upper part of FIG. 3, and the perspective view is described in the lower part.
[0034]
The battery pack 6 has a + terminal, a T terminal, and a − terminal that serve as an electrical connection for supplying power to the mobile phone body on its side surface, and designates a position where a submergence detection label is to be attached. A submergence detection label attaching portion 8 is provided. The submergence detection label attaching portion 8 has a test pin hole 7 for performing a power supply test.
[0035]
Before the manufacturer ships the product, the test pin hole 7 is used to test the power supply. However, this test pin hole 7 is also hidden after the test, so the test pin hole 7 is submerged in the detection label. The submergence detection label is affixed to the submergence detection label affixation part 8 and shipped.
[0036]
Now, when using a mobile phone equipped with this battery pack 6, as an example, when the mobile phone is dropped into a puddle and becomes submerged, water that has entered from the outside of the mobile phone is discharged from the battery. The battery 6 enters the battery pack 6 via each terminal of the pack 6 and causes a failure. The water that has entered the battery pack 6 is coated with the adhesive 3 for the submergence detection label through the test pin hole 7. Soaked in the “high quality paper” that has not been soaked so that the submerged sheet 2 is appropriately wetted and the water-soluble red ink 4 applied on the submerged sheet 2 is soaked, so that the mobile phone user visually confirms the submerged state. It is possible to make the repair request to the manufacturer accurate.
[0037]
In some cases, water that has entered from the outside of the mobile phone comes directly onto the submergence detection label attaching portion 8, but the water that has entered in this case is repelled by the PET sheet 1. The wet red ink 4 is not wetted, and there is no possibility of misidentifying that water has entered the battery pack 6.
[0038]
If the submergence detection label is on the immediate side of each terminal as in this specific example, the water that has entered from the terminal immediately permeates the submergence sheet 2 and soaks the water-soluble red ink 4. Becomes more accurate.
[0039]
Furthermore, by having the structure having the test pin hole 7 in the submergence detection label attaching portion 8, the water 3 that has entered the battery pack 6 compared to the case without the test pin hole 7 is adhered to the submergence detection label. It becomes easy to permeate from the side, and immediately permeates the submerged sheet 2 and soaks the water-soluble red ink 4, so that the submerged state can be detected more accurately.
[0040]
In this specific example, the case where each terminal and the submergence detection label affixed portion are provided on the same surface on the side surface of the battery pack has been described. Alternatively, even a different surface such as the lower surface has the same ability to detect submergence.
[0041]
Further, in this specific example, the battery pack is taken as an example, but the submersion having the above-described adhesion region also in a place where water may enter from the terminal and cause a failure, for example, a terminal of a connection cable with an external device. By using the detection label, it is possible to accurately detect the submerged state.
[0042]
<Embodiment 2>
FIG. 4 shows a sectional view of the submergence detection label shown in FIG. 6 when viewed from the section AA. The submergence detection label according to the present embodiment includes a PET sheet 1, a submergence sheet (quality paper) 2, an adhesive 5, and water-soluble red ink 4. The PET sheet 1 corresponds to the waterproof means described in paragraph 0017, the submerged sheet 2 corresponds to the submerged detection means described in the paragraph, the adhesive 3 corresponds to the adhesive means described in the paragraph, and the water-soluble red ink 4 Corresponds to the coloring means described in the same paragraph.
[0043]
The PET sheet 1 is waterproof so that moisture does not enter from the outside and the submerged sheet 2 is directly wetted. The PET sheet 1 can be repelled sufficiently if it is wet enough to rain, dew, or sweat. In this embodiment, the PET sheet 1 is provided on the surface of the submerged sheet 2.
[0044]
The submerged sheet (quality paper) 2 is a sheet on which the water-soluble red ink 4 described with reference to FIG. 6 is printed. A submerged sheet such as Japanese paper is used. When the water 2 is wet, the water-soluble red ink 4 bleeds so that the submerged state of the mobile phone can be visually grasped.
[0045]
The adhesive 5 is for adhering the submergence detection label to a device (in particular, an electronic pack of a cellular phone) that is a target of submergence detection, and is provided on the back surface of the submergence sheet 2. In the present embodiment, the adhesive 5 is not applied to the entire back surface of the submerged sheet 2, but is basically applied to the back surface outside the region where the water-soluble red ink 4 is applied to the front surface. The coating is limited.
[0046]
In order to apply such a limited adhesion region, an appropriate masking agent is first applied to the back surface of the region where the water-soluble red ink 4 is applied to the surface, and then the adhesive 5 is applied. It is sufficient to apply to the submerged sheet 2 and to remove the masking agent after the applied state of the applied adhesive 5 is stabilized.
[0047]
Moisture that has entered the interior of the mobile phone generally does not pass through the adhesive 5, so if the adhesive 5 is applied to the entire surface, the submerged sheet 2 will not be so much wetted, and the water-soluble red ink 4 will be sufficiently blotted. However, the detection of the submerged state becomes ambiguous, but when water enters due to the limitation of the above-mentioned adhesive region, the submerged sheet 2 is appropriately wetted in the region where the adhesive 5 is not applied, The red ink 4 bleeds moderately and the accuracy of detection of the submerged state increases.
[0048]
The second embodiment is different from the first embodiment in that the adhesive 5 is applied to the back surface of the area where the water-soluble red ink 4 is applied to the surface of the submerged sheet 2. That is, in FIG. 4, the adhesive 5 is applied in a slit shape on the back surface of the region where the water-soluble red ink 4 is applied on the surface. By doing so, the submergence detection accuracy is lower than that of the first embodiment, but the adhesion strength of the submergence detection label can be increased.
[0049]
In the end, it will be a balance between submergence detection accuracy and adhesive strength, but depending on the electronic equipment and equipment parts used, estimate the appropriate submergence detection accuracy and adhesive strength, and change the shape of the masking agent to be applied. Apply it. In addition, the application | coating mode of an adhesive agent is not restricted to a slit shape separately.
[0050]
FIG. 5 shows an adhesive surface shape diagram of the present embodiment, which corresponds to the state where the submergence detection label of FIG. 6 is viewed from the back side, and the submerged sheet 2 is viewed from the adhesive 5 side in FIG. It corresponds to the state. The adhesion area to which the adhesive 5 is applied is indicated by hatching as “adhesive part”. This “adhesive part” corresponds to “first region” described in paragraph 0017. On the other hand, the area where the adhesive 5 is not applied is shaded as “high quality paper”. The “quality paper portion” is a region where the water-soluble red ink 4 is applied to the surface of the submerged sheet 2 and corresponds to a “second region” described in paragraph 0018. As described above, the invading water permeates into the high-quality paper and soaks the water-soluble red ink 4. The area designation of the high-quality paper portion, that is, the area where the water-soluble red ink 4 is applied is generally described in the dimensions shown in FIG. 5, but is shifted within a range in which submergence detection can be confirmed without being restricted by this position. May be.
[0051]
As described above, if the “quality paper portion” is a slit-shaped region as shown in FIG. 5, the submerged detection label is difficult to peel off because the bonding area is larger than that in the first embodiment.
[0052]
Even in the adhesive region of the adhesive 5 handled in the second embodiment, the actual use example of the submergence detection label as described in <Specific example> in <Embodiment 1>, the accuracy of detection of the submerged state The behavior is the same.
[0053]
【The invention's effect】
As is clear from the above description, if the submergence detection label of the present invention is used, the adhesive means provided on the back surface of the submergence detection means is provided on the back surface of the surface area of the submergence detection means on which the coloring means is applied. By adopting an unstructured structure, water that permeates from the adhesive means side in a submerged state moderately wets the submerged detection means in the area, dissolves the coloring means on the surface, and facilitates visual detection of the submerged state. Can be.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA of the submergence detection label shown in FIG.
FIG. 2 is an adhesive surface shape diagram according to the first embodiment.
FIG. 3 is a submerged label affixing location diagram when actually using the submergence detection label in Embodiments 1 and 2, the upper part is a side view of the battery pack 6, and the lower part is a perspective view thereof.
4 is a cross-sectional view taken along line AA of the submergence detection label shown in FIG. 6 according to Embodiment 2. FIG.
5 is an adhesive surface shape diagram according to Embodiment 2. FIG.
FIG. 6 is an external view of a submergence detection label.
7 is a cross-sectional view taken along the line AA of the submergence detection label shown in FIG. 6 in a conventional example.
[Explanation of symbols]
1 PET sheet 2 Submerged sheet (quality part)
3 Adhesive 4 Water-soluble red ink 5 Adhesive 6 Battery pack 7 Test pin hole 8 Submergence detection label application location 9 Adhesive

Claims (7)

A water-soluble coloring means is applied to the surface, has water absorption, and a submersion detecting means for detecting a submerged state;
Waterproof means provided on the surface of the submergence detecting means;
An adhesive means provided on the back surface of the submergence detecting means,
In the submerged state, the coloring means dissolves on the submerged detection means,
The submergence detection label is characterized in that the adhesion unit is provided in a first adhesion region on the back surface corresponding to a first region where the coloring unit is not applied to the surface of the submergence detection unit. The bonding means includes
In addition to the first adhesion area, the coloring means is also provided in a second adhesion area on the back surface corresponding to the second area applied to the surface of the submergence detection means. Item 10. The submergence detection label according to Item 1. The submergence detection label according to claim 1, wherein the submergence detection label is provided near a connection terminal of a device that is a target of submergence state detection or each means that constitutes the device. A battery pack having a submergence detection label,
The submergence detection label is a submergence detection unit having water absorption comprising a first region where a water-soluble coloring unit is not applied to the surface and a second region where a water-soluble coloring unit is applied to the surface;
Waterproof means provided on the surface of the submergence detecting means;
An adhesive means provided on the back surface of the submergence detecting means,
In the submerged state, the coloring means dissolves on the submerged detection means,
The bonding means is provided in a first bonding region on the back surface corresponding to the first region;
The battery pack housing is provided with holes,
The battery pack, wherein the submerged label is attached to correspond to the second region and the hole. The battery pack according to claim 4, wherein the hole also serves as a power supply test application. A first step of applying water-soluble coloring means to the surface with respect to the submergence detecting means having water absorption and detecting a submerged state;
A second step of providing waterproof means on the surface of the submergence detecting means;
A third step of providing an adhesive means on the back surface of the submergence detecting means,
A submergence detection label manufacturing method for manufacturing a submergence detection label in which the coloring unit dissolves on the submergence detection unit in a submerged state,
In the third step, the submergence detection label is manufactured by providing the adhesion unit in a first adhesion region on the back surface corresponding to the first region where the coloring unit is not applied to the surface of the submergence detection unit. Method. In the third step,
In addition to the first adhesion area, the coloring means is also provided in the second adhesion area on the back surface corresponding to the second area applied to the surface of the submergence detection means. The submergence detection label manufacturing method according to claim 6.

Images