JP2017189348A - Clothing article with sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clothing article with a sensor capable of easily installing a urination sensor formed of conductive ink by effectively suppressing shrinkage of a sheet when drying the conductive ink.SOLUTION: A urination sensor 20 includes: a printed substrate 22 formed of a resin film; a plurality of printed electrodes 21 forming a sensor element by the conductive ink applied to the surface of the printed substrate 22; a conductor part 23 for connecting the plurality of printed electrodes 21; and terminal parts 24 to which the conductive part 23 is connected. The printed substrate 22 has ventilation opening parts 25 functioned as ventilation areas. The urination sensor 20 includes the printed electrodes 21 closely fitted to a surface of a backside sheet 11b of a urine absorbing pad 11. The urination sensor 20 is covered by a cover sheet 27 to which an adhesive 26 is applied, and stuck to the backside sheet 11b of the urine absorbing pad 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wearing article with a sensor, and more particularly, to a wearing article with a sensor in which a urine sensor for detecting urination is attached to one of a plurality of sheets constituting the wearing article.

  In recent years, as an aging society progresses, in a hospital, a nursing facility, etc., for example, nursing a bedridden person is increasing. For example, to care for a bedridden caregiver, it is necessary to appropriately manage urination. In particular, if the cared person is unable to urinate by himself and is forced to wear worn articles with absorbency such as diapers, whether the cared person will urinate or change diapers, etc. Etc. need to be managed more appropriately.

  As a method of managing urination of a care recipient who wears a wearing article such as a diaper in a hospital or a care facility, generally, a caregiver such as a nurse is, for example, about 6 to 8 times a day. A method was adopted in which a patrol was carried out at a predetermined time in proportion, the presence or absence of urination by the cared person was confirmed, and diapers etc. were exchanged as necessary. It is not an efficient management method because it does not urinate. Further, when the number of care recipients increases, the burden on the caregiver increases. For the cared person, for example, when urination is performed immediately after the patrol by the carer, if the diaper or the like is not exchanged until the next patrol, the cared person is uncomfortable and unsanitary.

  For this reason, a plurality of sensor elements are attached to a wearing article such as a diaper worn by a wearer such as a cared person, and the presence or absence of urination by the wearer is detected by these sensor elements to urinate It is now possible to inform caregivers via a nurse call etc., and to measure the amount of urine absorbed and urine from the spread of urine absorbed by a worn article with absorbency during urination A urination detection device has been developed (see, for example, Patent Document 1).

  Further, in the urination detection device of Patent Document 1, there is a high correlation between the output change amount by the capacitance sensor and the urine spreading area in the wearing article, and the urine spreading area and the urine absorption amount in the wearing article It is described that there is a high correlation between the two, and that it is possible to calculate the urine volume per second (urine flow rate). It has become. For this reason, when actually using the urination detection device of patent document 1 in a hospital, a nursing facility, etc., for example, how to use a plurality of sensor elements on a wearing article such as a diaper worn by a wearer such as a care recipient It is necessary to consider whether it is practical to provide it. For this reason, for example, by applying a conductive ink containing a conductive material to the surface of one of a plurality of sheets constituting a worn article, a sensor element with a plurality of electrode groups is provided. A worn article has been developed (see, for example, Patent Document 2).

JP 2013-39158 A JP2015-119784A

  In the wearing article described in Patent Document 2, the air permeability of the wearing article provided with a plurality of sensor elements is not hindered, and it is soft and can measure the spread of body fluid with high accuracy. Since the sheet coated with the conductive ink is easily shrunk by heat when drying the product, it is difficult to manufacture a worn article. For this reason, the development of a wearing article provided with a urination sensor for detecting urination, which suppresses the contraction of the sheet when the conductive ink is dried, and makes it possible to manufacture the ink more easily. It is desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a sensor-equipped wearing article that can effectively prevent a sheet from shrinking when the conductive ink is dried and can easily provide a urine sensor using the conductive ink. .

  The present invention is a wearing article with a sensor in which a urine sensor for detecting urination is attached to one of a plurality of sheets constituting the worn article, wherein the urination sensor is formed of a resin film. A printing substrate, a plurality of printing electrodes that form a sensor element, and a conductive wire portion that connects the plurality of printing electrodes, and the conductive wire portion connected to the surface of the printing substrate. The printing substrate has a ventilation opening functioning as a ventilation region, and the urination sensor closely contacts the printed electrode to the surface of the one sheet. The urination sensor is covered with a covering sheet made of a non-woven fabric coated with an adhesive, and is attached to the surface of the one sheet via the adhesive applied to the covering sheet. The pressure-sensitive adhesive provides a wearing article with a sensor in which a non-applied portion is present on the surface of the covering sheet, so that the non-applied portion maintains a ventilation function in the ventilation opening of the printing base material. Thus, the above-mentioned purpose is achieved.

  According to the wearing article with a sensor of the present invention, it is possible to effectively prevent the sheet from contracting when the conductive ink is dried, and to easily provide a urination sensor using the conductive ink.

It is a schematic perspective view of the state which combined the urine collection pad which is a wearing article with a sensor concerning one desirable embodiment of the present invention with a disposable diaper. It is the reverse view which looked at the urine pad from the non-skin opposing surface side which shows the urination sensor attached to the urine collection pad in the state which peeled a part of the coating sheet which covers the said urine sensor. The urine collecting pad to which the urination sensor and the covering sheet are attached will be described. (A) is an enlarged schematic cross-sectional view along AA in FIG. 2, and (b) is along BB in FIG. 2. It is an expanded schematic sectional view. It is a back view of a urine pad and a covering sheet in a state before attaching a covering sheet, explaining a urination sensor disposed on the urine collecting pad and a covering sheet attached to cover the urine sensor. (A), (b) is an enlarged plan view which illustrates the form of a printing electrode. (A)-(e) is a schematic plan view explaining the process in which a urination sensor is attached to a urine collection pad. It is a back view of the state before attaching a nonwoven fabric which illustrates the other form of a urine collection pad.

  A wearing article 10 with a sensor according to a preferred embodiment of the present invention shown in FIG. 1 is a disposable diaper (diaper main body) in which a urine sensor 20 is attached to a urine pad 11 which is an absorbent article having absorbency, for example. ) 12 in combination. In the present embodiment, the urine collection pad 11 includes a vertically long absorbent body 11c (see FIGS. 3A and 3B) as shown in FIG. In this embodiment, as one sheet of the plurality of sheets constituting the wearing article 10 with the sensor, it is preferable that the urine collecting pad 11 is on the side opposite to the skin-facing surface side that is the side that touches the wearer's skin. The urination sensor 20 is attached to the surface of the back sheet 11b on the outer side (non-skin facing surface side). The urination sensor 20 includes a sensor element formed of a plurality of printed electrodes 21 (see FIGS. 2 and 3A) formed by applying conductive ink. The urination sensor 20 can detect the spread of urination absorbed by the urine collecting pad 11 based on the impedance change between the plurality of printed electrodes 21. In this embodiment, when the printed electrode 21 is formed by applying the conductive ink, the back sheet 11b is not contracted by drying of the applied conductive ink, and the urination sensor 20 is used by using the conductive ink. Can be easily and efficiently provided on the urine collecting pad 11.

  And as for the wearing article 10 with a sensor of this embodiment, as one sheet | seat of the some sheet | seat which comprises the wearing article 10, for example, the urine sensor in which the urine sensor 20 which detects urine is attached to the back surface sheet 11b is taken. The urine sensor 20 is an article in which the pad 11 and the disposable diaper 12 are combined. As shown in FIGS. 2 to 4, the urination sensor 20 is formed on a surface of the printing base 22 and a printing base 22 formed of a resin film. A plurality of print electrodes 21 that form sensor elements by the applied conductive ink, a conductor portion 23 that connects the plurality of print electrodes 21, and a terminal portion 24 that is connected to the conductor portion 23. Has been. The urination sensor 20 having the ventilation opening 22 that functions as a ventilation region has the printing electrode 21 in close contact with the surface of the back sheet 11 b of the urine collecting pad 11. The urine sensor 20 is covered with a covering sheet 27 made of a nonwoven fabric to which an adhesive 26 is applied (see FIGS. 2 and 4), and the back surface of the urine collecting pad 11 through the adhesive 26 applied to the covering sheet 27. It is affixed on the surface of the sheet 11b. The adhesive 26 has a non-application portion 26a on the surface 27 of the covering sheet (see FIGS. 2 and 4), thereby forming, for example, a spiral application pattern. Thereby, in the ventilation opening part 25 of the printing base material 22, the ventilation | gas_flowing function is hold | maintained by the non-application part 26a. On the front side of the urine collecting pad 11, for example, an auxiliary side sheet (not shown) for forming a three-dimensional gather (not shown) can be provided.

  In the present embodiment, the conductive ink is preferably an ink in which a metal powder such as silver powder is blended as a conductive substance, and the conductor portion 23 is formed on the surface of the printing substrate 22 in the same manner as the printing electrode 21. It consists of a printed conductive layer 28 (see FIGS. 3A and 3B) applied with conductive ink.

  In this embodiment, the diaper main body (disposable diaper) 12 used in combination with the urine pad 11 to which the urination sensor 20 is attached is a disposable diaper described in JP-A-2015-119784 as shown in FIG. It has the same configuration. In FIG. 1, a urine collecting pad 11 as an inner and a diaper main body (disposable diaper) 12 as an outer are combined. The diaper main body 12 includes a main body surface sheet 12a on which the urine absorbing pad 11 is mounted on the inner skin facing surface side, a main body back sheet 12b disposed on the most non-skin facing surface side, and both the sheets 12a and 12b. And a main body absorber 12c disposed between the two. Moreover, the leg part elastic body (not shown) for leg gather formation is distribute | arranged to the diaper main body 12 in the longitudinal direction Y on the outer side of the main body absorber 12c in the width direction X. Leg gathers 12d are formed by contraction of the body leg elastic members (not shown). An auxiliary side sheet (not shown) for forming a three-dimensional gather (not shown), for example, may be further provided on the surface side of the main body surface sheet 12a.

  Moreover, the main body part absorber 12c of the diaper main body 12 has a larger planar shape than, for example, the urine pad 11 attached to the skin facing surface (inner side) of the diaper main body 12, and the ventral region A The left and right side edges and the left and right side edges of the back region B extend outward in the width direction X from the left and right side edges of the crotch region C. The left and right side edges of the crotch region C are curved in an arc shape inward in the width direction X, and the central portion in the longitudinal direction Y is constricted inward as a whole. The main body absorbent body 12c has an absorbent core formed by holding particles of a water-absorbing polymer in an aggregate of fibers such as pulp fibers in the same manner as the absorbent body 11c of the urine pad 11 described later. It is formed in a state covered with a sheet.

  The main body surface sheet 12a and the main body back sheet 12b extend outward from both side edges along the longitudinal direction Y of the main body absorber 12c and both end edges along the width direction X, respectively. The main body surface sheet 12a and the main body back sheet 12b are joined to each other by an adhesive, heat fusion, or the like at the extending portion extending outward from the peripheral edge of the main body absorber 12c. The absorber 12c is provided in a sandwiched and fixed state.

  The diaper main body 12 formed as described above has a shape in which the central portion in the longitudinal direction Y is constricted inward as a whole. The diaper main body 12 is a so-called unfolded diaper, and two pairs of fastening tapes 13 are provided on the left and right side edges of the dorsal region B, and are fastened to the outer surface (non-skin facing surface) of the ventral region A. A landing tape (not shown) for fixing the tape 13 is provided. The outer combined with the urine collecting pad 11 as the inner may be a disposable diaper, cloth pants, rehabilitation pants or the like. Moreover, the wearing article 10 with a sensor may be a disposable diaper with a sensor (tape fastening, rehabilitation pants) or the like in addition to a urine collecting pad with a sensor sheet.

  As shown in FIGS. 2 to 4, the urine collecting pad 11 that is mounted on the skin facing surface (inside) of the diaper main body 12 has a liquid-permeable surface sheet 11 a disposed on the skin facing surface side and a non-permeable surface sheet 11 a. It is configured to include a liquid-impermeable back sheet 11b disposed on the skin facing surface side and an absorbent body 11c disposed between these sheets 11a and 11b (FIGS. 3A and 3B). reference). The top sheet 11a, the back sheet 11b, and the absorbent body 11c of the urine collecting pad 11 have a rectangular shape that is long in the longitudinal direction Y of the wearing article 10 with the sensor. The top sheet 11a and the back sheet 11b are provided to extend outward from both side edge portions along the longitudinal direction Y of the absorbent body 11c and both end edge portions along the width direction X, respectively, and the main body of the diaper main body 12 Similar to the partial absorber 12c, the central portion in the longitudinal direction Y has a shape that is bound inward. The top sheet 11a and the back sheet 11b are joined to each other by an adhesive, heat fusion, or the like, directly or via a side sheet or the like, at an extended portion extending outward from the periphery of the absorber 11c. The absorbent body 11c is sandwiched and fixed inside. As shown in FIGS. 3 (a) and 3 (b), the absorbent body 11c has an absorbent core 11d in which water-absorbing polymer particles are held in an aggregate of fibers such as pulp fibers. It is formed in a state of being covered with a wrap sheet 11e.

  In the present embodiment, as described above, the urination sensor 20 for detecting urination is preferably provided on the back sheet 11b of the urine collecting pad 11 as one sheet among the plurality of sheets constituting the wearing article 10. It is attached. That is, in the present embodiment, the urination sensor 20 is formed with a plurality of sensor elements by a plurality of printing electrodes 21 made of conductive ink applied to the surface of the printing substrate 22 as described later. Through these plural sensor elements, the presence or absence of urination by the wearer of the wearing article 10 is detected, and the amount of urine absorbed, the amount of urination, etc. are measured from the spread of urine absorbed by the urine collection pad 11 during urination. You can do that.

  In the present embodiment, the print electrodes 21 formed by applying conductive ink to the surface of the printing substrate 22 are arranged at eight locations in the longitudinal direction Y of the urine collecting pad 11 as shown in FIG. Yes. The printing electrode 21 adjacent in the longitudinal direction Y of the urine collecting pad 11 includes a positive electrode, a negative electrode, a positive electrode,..., Or a negative electrode, a positive electrode, a negative electrode,. Are alternately arranged to constitute seven sensor elements. The printed electrodes 21 are preferably arranged in two rows in the width direction X of the urine collecting pad 11. By arranging the plurality of print electrodes 21 in this manner, in this embodiment, for convenience, 14 sensor elements are formed. The printed electrodes 21 adjacent in the width direction X of the urine collecting pad 11 may be arranged in a relationship of a negative electrode with respect to the positive electrode and a positive electrode with respect to the negative electrode. The positive electrode and the negative electrode are arranged with respect to the negative electrode. It should be noted that the number of places where the printed electrodes 21 are arranged is preferably 6 to 12 in the longitudinal direction Y of the urine collecting pad 11.

  In the present embodiment, two rows are arranged vertically in the longitudinal direction Y of the urine collecting pad 11, and the print electrodes 21 are arranged at a total of 16 locations (see FIG. 4). The eight printed electrodes 21 arranged in each column are connected to the four negative electrodes and the positive electrode alternately arranged by the conductor portion 23, and two sets in each column, a total of 4 A set of electrode groups is formed. Each electrode group is connected to the positive electrode and the negative electrode provided at the end portion in the longitudinal direction Y of the urine collecting pad 11 through a conductive wire portion 23 extending and arranged linearly inside and outside these electrode groups. Each is connected to two terminal portions 24.

  Moreover, in this embodiment, the printing electrode 21 which comprises the urination sensor 20 is formed by apply | coating a conductive ink to the surface of the printing base material 22 so that it may mention later, and it shows to Fig.5 (a). Thus, for example, it has a rectangular shape with a length of about 1 mm to 100 mm in the Y direction and a length of about 3 mm to 150 mm in the X direction. As shown in FIG. 5B, the printed electrode 21 is formed by applying conductive ink on the surface of the printing base material 22 so as to have a non-coated portion, for example, in a lattice shape. It is possible to reduce the usage amount and reduce the cost. The shape (design), size, arrangement shape, and the like of the printed electrode 21 can be appropriately designed without being limited to those of the present embodiment.

  Further, in the present embodiment, the conductor portion 23 for connecting each electrode group of the four printed electrodes 21 to the terminal portion 24 is applied to the surface of the printing substrate 22 in the same manner as the printed electrode 21. Further, it is formed by a printed conductive layer 28 (see FIGS. 3A and 3B) made of conductive ink. By forming the conductive wire portion 23 with the printed conductive layer 28 made of conductive ink, the printed electrode 21 constituting each electrode group is arranged to be connected to the terminal portion 24, and the conductive wire portion 23 is connected to the urine collecting pad. 11 can be easily provided on the back sheet 11b.

  Furthermore, in the present embodiment, the terminal portion 24 uses a conductive metal snap as a known terminal portion. The terminal portion 24 can also be formed using a metal connector, a fastener, a hook-and-loop fastener (such as Velcro (registered trademark)), a screw, a hook, a biting fastener, and the like.

  In the present embodiment, the printing electrode 21 and the conductive wire portion 23 (printing conductive layer 28) constituting the urination sensor 22 are provided with a predetermined arrangement shape of conductive ink on the surface of the printing substrate 23 (see FIG. 6A). It is formed by applying so that.

  Here, the printing substrate 22 is preferably formed using a polyethylene terephthalate film having a thickness of, for example, about 35 to 75 μm as a resin film having physical properties that do not shrink when the applied conductive ink is dried. . The printing substrate 22 can be formed as a resin film having physical properties that do not shrink when the applied conductive ink is dried, preferably using a material having a melting point of 200 ° C. or higher, such as polyethylene terephthalate or polyimide. .

  In addition, the conductive ink applied to the printing substrate 22 may be, for example, a mixture of a dispersant, a binder, a resin, a curing agent, or the like mixed with, for example, carbon powder as a conductive substance, or silver. What mix | blended metal powders, such as copper, can be used. In the present embodiment, preferably, an ink containing silver powder as a metal powder is used.

  When the conductive ink is applied to the printing base material 22 and the conductive wire portion 23 is formed by the print electrode 21 or the printed conductive layer 28, the conductive ink may be printed (applied) only once. From the viewpoint of increasing the sensitivity for detecting urination, it may be formed by printing (applying) a plurality of times. The number of times of printing in an overlapping manner is preferably 1 to 10 times. As a method for applying conductive ink and printing, a known method such as inkjet printing, rotary printing, flexographic printing, screen printing, gravure printing, or the like can be employed.

  In the present embodiment, the printing base material 22 is preferably substantially the whole of the region other than the printing electrode 21 and the conductor portion 23 as at least a part of the printing base material 22 where the conductive ink is not applied. In the cutting process (see FIG. 6B), the air gap opening 25 that functions as the air flow area 25 is formed by the removed portion that has been removed (see FIG. 6B). 4). By these ventilation regions (ventilation openings) 25 formed on a polyethylene terephthalate film that does not have air permeability constituting the printing base material 22, the back sheet 11 b of the urine pad 11 to which the urine sensor 20 is attached is provided. It becomes possible to maintain air permeability. The printing electrode 21 and the conductive wire portion 23 are printed on the printing substrate 22 in a desired printing pattern, and then a portion where the conductive ink is not applied is cut or a printing substrate made of a resin film is used. After the conductive ink is printed in advance on the entire surface of 22, the printing base material 22 on which the conductive ink is printed may be cut into a desired print pattern. Moreover, the ventilation opening 25 used as a ventilation area should just be substantially enclosed by the edge part, and the surrounding edge part does not need to be continuing.

  In the present embodiment, the printed electrode 21 and the printed conductive layer 28 formed by applying the conductive ink to the printing base material 22 are attached to the back sheet 11b of the urine collecting pad 11 so as to cover the urine sensor 20. It attaches to the back surface sheet 11b using the coating sheet 27 which consists of a nonwoven fabric provided with air permeability. The printed electrode 21 and the printed conductive layer 28 are attached to the back sheet 11b together with the printing base material 22 using the covering sheet 27 in a state where they are in close contact with the back sheet 11b of the urine collecting pad 11. An adhesive 26 is applied to the covering sheet 27 on the inner surface of the skin facing surface side. The covering sheet 27 is affixed to the back sheet 11b of the urine collecting pad 11 at the ventilation opening 25, which is a portion lacking after the printing substrate 22 is removed, or the outer periphery of the printing substrate 22. The urine sensor 20 is attached so as to cover the urine sensor 20 with the back sheet 11b. As a result, the urine sensor 20 including the printing base material 22, the plurality of printing electrodes 21 made of conductive ink, the conductive wire portion 23 formed of the printed conductive layer 28 made of conductive ink, and the terminal portion 24 is used as the urine collection pad 11. In a state where the printed electrode 21 is in close contact with the surface of the back sheet 11b, the back sheet 11b is disposed so as to overlap the back sheet 11b of the urine collecting pad 11.

Here, in this embodiment, the nonwoven fabric which comprises the covering sheet 27 can use the material conventionally used for the wearing article, Specifically, such as a spun bond, a spun lace, an air through, etc. Nonwoven fabric can be used. When using a spunbonded nonwoven fabric, the basis weight is preferably 5 g / m ² or more and 100 g / m ² or less, more preferably 10 g / m ² or more and 80 g / m ² or less. The nonwoven fabric 27 has air permeability, and the air permeability is preferably 10 m / kPa · s or more and 1500 m / kPa · s or less, and more preferably 20 m / kPa · s or more and 800 m / kPa · s. It is as follows. The air permeability is obtained as the reciprocal of the airflow resistance measured by AUTOMATIC AIR-PERMEABILITY TESTER KES-F8-AP1 (breathability tester) manufactured by Kato Tech. You may obtain | require a thing with small air permeability from the measured value of a galley densometer.

  In the present embodiment, as the pressure-sensitive adhesive 26 applied to the covering sheet 27, preferably a skin pressure-sensitive adhesive can be used. Examples of the pressure-sensitive adhesive include acrylics and rubbers, but rubbers can be preferably used.

  Furthermore, in the present embodiment, the adhesive 26 can adopt a known application pattern such as a spiral shape, a summit shape, an omega shape, a curtain shape, or a stripe shape as the application pattern in which the non-application portion 26a exists. . In the present embodiment, a coating pattern by spiral spray is preferably used. Even if the pressure-sensitive adhesive 26 does not have air permeability because the pressure-sensitive adhesive 26 is applied to the cover sheet 27 in a coating pattern in which the non-coated portion 26a exists, at least the ventilation region of the printing substrate 22 In FIG. 25, the back sheet 11b of the urine collecting pad 11 to which the urination sensor 20 is attached can be kept air permeable by aerating through these non-application portions 26a.

  The urine collection pad 11 to which the urination sensor 20 having the above-described configuration is attached can be easily and efficiently formed according to the following manufacturing process shown in FIGS. That is, in order to form the urine collecting pad 11 to which the urination sensor 20 is attached, first, in the ink application process, the conductive ink is applied to the surface of the printing substrate 22 with the 16 printing electrodes 21 and the four printing electrodes 21. It is applied so as to have a predetermined arrangement shape including the printed conductive layer 28 (see FIG. 6A). When the applied conductive ink is dried, it is preferable that at least a part of the printing substrate 22 where the conductive ink is not applied in the cutting step, preferably in a region other than the applied printing electrode 21 and the printed conductive layer 28. A substantially entire portion of the printing substrate 22 is cut and removed (see FIG. 6B).

  Next, the portion that has not been removed is inverted so that the applied printing electrode 21 and the printed conductive layer 28 are disposed on the lower side and the printing substrate 22 is disposed on the upper side (see FIG. 6C). As the covering sheet attaching step, the covering sheet 27 is attached so as to cover the printing substrate 22 provided with the printing electrode 21 and the printing conductive layer 28 via the adhesive 26 applied to the covering sheet 27. Further, the urination sensor 20 is formed by connecting the lead wire portion 23 formed by the printed conductive layer 28 and attaching the terminal portions 24 of the positive electrode and the negative electrode. (See FIG. 6D). After that, the covering sheet 27 is pasted on the back sheet 11b of the urine collecting pad 11 through the applied adhesive 26 in the portion protruding to the outside of the urination sensor 20 and the portion of the ventilation region 25 of the printing substrate 22. Thus, the urination sensor 20 covered with the covering sheet 27 is attached to the urine collecting pad 11 together with the covering sheet 27 (see FIG. 6E). Thus, the urine collecting pad 11 to which the urine sensor 20 is attached so as to be sandwiched between the covering sheet 27 and the back sheet 11b is formed.

  After forming the urine collection pad 11 to which the urination sensor 20 is attached, the urine collection pad 11 is attached to the skin facing surface (inside) of the diaper main body 12 as described above, thereby mounting the sensor of the present embodiment. The attached article 10 is formed (see FIG. 1). In addition, the diaper main body 12 may be underwear such as other absorbent articles, briefs, shorts, girdles, paper pants, rehabilitation pants, in addition to disposable diapers.

  And according to the wearing article 10 with a sensor of this embodiment provided with the above-mentioned structure, it can suppress effectively that a sheet | seat shrink | contracts when drying conductive ink, and the urination sensor 20 by conductive ink is easy. Can be provided.

  That is, according to the present embodiment, the urination sensor 20 includes a printing substrate 22 made of a resin film, and a plurality of printing electrodes 21 that form sensor elements made of conductive ink applied to the surface of the printing substrate 22. The conductive wire portion 23 is connected to the plurality of printed electrodes 21 and the terminal portion 24 is connected to the conductive wire portion 23, and the conductive ink is included in the plurality of sheets constituting the wearing article 10. As one sheet, for example, the printing electrode 21 is formed by being applied to the printing substrate 22 instead of being directly applied to the back sheet 11b of the urine collecting pad 11. Moreover, the formed printed electrode 21 is provided in the wearing article 10 by being affixed to the back surface sheet 11b with the printing base material 22, for example. The printing base material 22 made of a resin film such as a polyethylene terephthalate film to which the conductive ink is applied preferably has physical properties that do not shrink when the applied conductive ink is dried. By attaching the printed electrode 21 to the back sheet 11b via the conductive ink, the urine sensor 20 using the conductive ink can be easily and efficiently manufactured in accordance with the above-described manufacturing process without causing the sheet to contract when the conductive ink is dried. It can be provided on the wearing article 10.

  FIG. 7 illustrates another form of the urine pad. The urine collection pad 11 ′ shown in FIG. 7 has substantially the same configuration as that of the urine collection pad 11 of the above-described embodiment, and the print electrode 21 ′ arranged in an overlapping manner in the print electrode 21 ′ portion is printed. A through hole 29 is formed through the substrate 22 ′ and a covering sheet (not shown). Also in the urine pad 11 ′ shown in FIG. 7, the conductor portion 23 ′ is composed of a printed conductive layer 28 ′ made of conductive ink applied to the surface of the printing substrate 22 ′. In the portion 28 ′, a through hole 29 is formed through the printed conductive layer 28 ′, the printing base material 22 ′, and the covering sheet that are arranged in an overlapping manner. These through holes 29 compensate for the decrease in air permeability caused by the provision of the printing electrode 21 ′, the printing base material 22 ′, and the printing conductive layer 28 ′, and more effectively improve the air permeability of the urine collecting pad 11 ′. It becomes possible to do.

  Further, in the urine collecting pad 11 ′ shown in FIG. 7, the number of terminal portions 24 ′ connected to the positive electrode is different from the number of terminal portions 24 ′ connected to the negative electrode. That is, in the urine collecting pad 11 ′ shown in FIG. 7, for example, two positive terminal portions 24 a ′ and one negative terminal portion 24 b ′ are provided at the end portion in the longitudinal direction. A measuring instrument attached to the urine collecting pad 11 ′ via the terminal portions 24a ′ and 24b ′ because the number of the terminal portions 24a ′ connected to the positive electrode and the number of the terminal portions 24b ′ connected to the negative electrode are different. It becomes possible to make the direction of the constant.

  The urine collection pad 11 ′ shown in FIG. 7 can be easily and efficiently formed according to substantially the same manufacturing process as the above-described urine collection pad 11 shown in FIGS. That is, first, in the ink application step, the conductive ink is applied over the entire surface of the printing substrate 22 '. When the applied conductive ink is dried, an unnecessary portion of the printing base material 22 ′ to which the conductive ink is applied so as to have a predetermined shape including the printed electrode 21 ′ and the printed conductive layer 28 ′ is removed in the cutting process. Cut and remove. Next, after inverting the portion of the predetermined shape that has not been removed so that the applied printing electrode 21 ′ and the printed conductive layer 28 ′ are disposed on the lower side and the printing substrate 22 ′ is disposed on the upper side, As the covering sheet attaching step, the covering sheet 22 ′ provided with the printing electrode 21 ′ and the printing conductive layer 28 ′ is covered with the adhesive applied to the covering sheet, and the covering sheet is attached. The urine collecting pad 11 ′ is formed by attaching positive and negative terminal portions 24 a ′ and 24 b ′ to the conductor portion 23 ′ and the printed electrode 21 ′ by the layer 28 ′.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the single sheet to which the urination sensor is attached does not necessarily need to be the back sheet of the urine collection pad, and may be other sheets constituting the wearing article suitable for detecting urination by the wearer. good. The conductive wire portion connecting the printed electrode to the terminal portion is not necessarily a printed conductive portion made of conductive ink, and may be made of other members such as conductive yarn. The wearing article to which the urine sensor is attached may be a combination of a disposable diaper and a urine pad, other absorbent articles, and underwear such as briefs, shorts, girdles, paper pants, and rehabilitation pants.

10 Wearing articles 11, 11 'Urine pad (absorbent body)
11a Top sheet 11b Back sheet 11c Absorber 11d Absorbent core 11e Core wrap sheet 12 Diaper body (disposable diaper)
12a Main body portion surface sheet 12b Main body portion rear surface sheet 12c Main body portion absorber 12d Leg gather 13 Fastening tape 20 Urine sensor 21, 21 'Print electrode 22, 22' Print base material 23, 23 'Lead wire portion 24, 24a, 24b Terminal portion 25 Ventilation area (ventilation opening)
26 Adhesive 26a Non-application part 27 Coating sheet (nonwoven fabric)
28, 28 'Printed conductive layer 29 Through hole

Claims (8)

A wearing article with a sensor in which a urination sensor for detecting urination is attached to one of a plurality of sheets constituting the wearing article,
The urination sensor connects a printing substrate formed of a resin film, a plurality of printing electrodes forming a sensor element with a conductive ink applied to the surface of the printing substrate, and the plurality of printing electrodes. A conductor part and a terminal part to which the conductor part is connected;
The printing substrate has a ventilation opening functioning as a ventilation region,
The urination sensor has the printed electrode adhered to the surface of the one sheet,
The urination sensor is covered with a cover sheet made of a nonwoven fabric coated with an adhesive, and is attached to the surface of the one sheet via the adhesive applied to the cover sheet,
The pressure-sensitive adhesive is a wearing article with a sensor in which a non-applied portion is present on the surface of the covering sheet, so that the non-applied portion maintains a ventilation function in the vent opening portion of the printing substrate.   2. The wearing article with a sensor according to claim 1, wherein a through-hole is formed through the printed electrode, the printed base material, and the non-woven fabric that are arranged to overlap each other in the printed electrode portion.   The wearing article with a sensor according to claim 1 or 2, wherein the one sheet is a back sheet of a urine collecting pad.   The wearing article with a sensor according to any one of claims 1 to 3, wherein the resin film forming the printing substrate is a polyethylene terephthalate film.   The wearing article with a sensor according to any one of claims 1 to 4, wherein the conductive ink is an ink in which metal powder is blended as a conductive substance.   The said adhesive is applied so that a non-application part may exist in the said nonwoven fabric, The spiral-shaped, summit-shaped, omega-shaped, curtain-shaped, or stripe-shaped application pattern is formed. The wearing article with a sensor according to any one of 5.   The wearing article with a sensor according to any one of claims 1 to 6, wherein the conductive wire portion is formed of a printed conductive layer made of a conductive ink applied to a surface of the printing base material.   The wearing article with a sensor according to any one of claims 1 to 7, wherein the number of the terminal portions connected to the positive electrode is different from the number of the terminal portions connected to the negative electrode.

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