JP2019058355A - Absorbent article - Google Patents

Abstract

To adjust a discharge detection position by a built-in discharge detection sensor.SOLUTION: A disposable diaper comprises: a liquid permeable top sheet 30; a liquid impermeable sheet 11; and an absorber 56. The disposable diaper comprises a sensor carrier 170 having a built-in part 171 which is positioned between the top sheet 30 and the liquid impermeable sheet 11. The sensor carrier 170 comprises: a passive type IC tag 120 provided on the built-in part 171; and a drawer part 172 extended from a part where the IC tag 120 is provided. The IC tag 120 transmits a wave including intrinsic information when receiving a wave from an external part, and at least one of a received wave and transmitted wave can be blocked by a discharged liquid in the surrounding, and the drawer part 172 can be drawn to outside of the disposable diaper.SELECTED DRAWING: Figure 20

Description

  The present invention relates to an absorbent article incorporating a excretion detection sensor.

  The presence or absence of excretion in the wearer of the absorbent article such as disposable diapers may be reported from the wearer or an excretion indicator provided on the absorbent article (the color or the like changes due to excretion. See, for example, Patent Document 1) Although it is common to confirm by this, the confirmation operation is complicated. In particular, confirmation of excretion in nursing care, etc. is a large burden not only on the caregiver but also on the wearer.

  As a solution to such problems, a tape-like sensor attached to the surface of the existing absorbent article and a wireless communication attached to the outer surface of the absorbent article in a state of being connected to the sensor to detect excretion There is provided a system for detecting excretion of an absorbent article comprising a part (see Non-Patent Document 1). The wireless communication unit includes a power source, an antenna, a circuit, and the like, and when an excretion is detected, a notification is given to a smartphone registered in advance. According to this prior art, the administrator can know the presence or absence of excretion even at a place away from the wearer without removing the clothes or checking the inside of the absorbent article.

JP 2004-337384 A Japanese Patent Application Laid-Open No. 11-33055 JP, 2015-27391, A

Sanwa Co., Ltd., "Brand introduction", [online], [search on February 9, 2017], Internet <URL: http://sanwajp-group.com/brand.html>

  However, since the thing of nonpatent literature 1 is retrofitted to an absorptive article, at the time of exchange of an absorptive article, a manager needs to install a sensor appropriately and preparation work is complicated. is there. However, it is not practical from the viewpoint of manufacturing cost and selling price to pre-install the sensor and the wireless communication unit in each product. The same applies to this point and those described in Patent Documents 2 and 3.

  In addition, since the wireless communication unit described in Non-Patent Document 1 includes a strong case that accommodates components such as a power source, the case may touch the skin or the shape of the absorbent article may be heavy with the case. There is also a possibility that the wearer feels a foreign object feeling or discomfort due to the deformation of the.

  On the other hand, since the sensor described in Non-Patent Document 1 is retrofit to the absorbent article, it can be installed at any position in the absorbent article, for example, the difference in urination position depending on the gender of the user The sensor can be placed at an appropriate position according to the difference in the diffusion range of urine depending on the user's main posture (such as lying position, standing position, sitting position, etc.). However, if the sensor or the like is simply incorporated in each product, the position of the sensor is fixed.

  Therefore, the main object of the present invention is to provide an absorbent article which has a built-in excretion detection sensor, is low in cost, has less influence on wearing feeling, and is capable of adjusting the position of excretion detection. is there.

The absorbent article which solved the said subject is as follows.
<First aspect>
An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable sheet, and an absorbent provided therebetween.
A sensor carrier having a built-in portion located between the top sheet and the liquid impermeable sheet;
The sensor carrier has a passive IC tag provided in the built-in portion, and a lead-out portion extending from the portion provided with the IC tag,
The IC tag transmits radio waves including specific information when receiving radio waves from the outside, and at least one of the received radio waves and the outgoing radio waves can be shielded by surrounding excrement liquid,
The drawing portion can be drawn out of the absorbent article.
An absorbent article characterized by the above.

(Action effect)
In the present absorbent article, at least one of the radio waves to be received or transmitted is blocked when the amount of liquid excreted around the IC tag increases, detection of excretion is detected using the fact that communication with the IC tag is disabled. can do. In addition, since the passive IC tag does not contain a battery and is thin and inexpensive, it is suitable for the built-in use of the absorbent article, and the influence on the wearing feeling is also small.
Further, the present absorbent article has a sensor carrier having a built-in portion located between the top sheet and the liquid impermeable sheet, and the IC tag is provided on the built-in portion of the sensor carrier. The sensor carrier has a lead-out portion extending from the portion where the IC tag is provided, and the lead-out portion can be pulled out of the absorbent article. Therefore, the user can move the sensor carrier together with the IC tag by pulling out the drawer, and can adjust the IC tag, that is, the excretion detection position.

<Second aspect>
The sensor carrier is interposed between the absorber and the liquid impermeable sheet.
The sensor carrier is drawn out in the front-rear direction, and the shape of the sensor carrier is a strip extending in the front-rear direction,
A groove-like moving space recessed upward is extended in the front-rear direction directly above the sensor carrier.
The absorbent article of the first aspect.

(Action effect)
In order to adjust the installation position of the IC tag, it is preferable that the extraction direction of the sensor carrier is a longitudinal direction, and the shape of the sensor carrier is a strip extending in the longitudinal direction. Also, in order to make the shielding of the radio wave of the IC tag more reliable and to prevent a sense of incongruity at the time of mounting, the mounting position of the IC tag is between the absorber and the liquid impermeable sheet preferable. However, in that case, the movement of the sensor carrier may be difficult. On the other hand, when the groove-like moving space recessed upward extends in the front-back direction directly above the sensor carrier, the sensor carrier can be easily moved and the waste liquid can be easily supplied to the IC tag. Detection sensitivity is improved.

<Third aspect>
The lead-out portion has a perforation for separating a part or all of the portion drawn out of the absorbent article.
The absorbent article of the first or second aspect.

(Action effect)
By having such perforations, part or all of the portion drawn out of the absorbent article can be cut off at the time of use, and unnecessary portions are less likely to be in the way.

<Fourth aspect>
The drawing unit includes a code printing unit on which a one-dimensional or two-dimensional code corresponding to the unique information of the IC tag is printed.
It is possible to optically read the one-dimensional or two-dimensional code of the code printing unit,
The absorbent article of any one of the first to third aspects.

(Action effect)
When such a code printing unit is provided, the one-dimensional or two-dimensional code is read by the reading device, and based on the correspondence with the unique information of the IC tag, the IC tag and the absorbent article or the wearer thereof The association can be easily performed, and the absorbent article or the wearer thereof whose excretion has been detected can be identified. For this reason, for example, it is possible to know who the plurality of wearers excreted in a hospital or the like.

<Fifth aspect>
The code printing unit is provided on a pressure-sensitive adhesive seal that is detachably attached to the lead-out unit.
The absorbent article of the 4th aspect.

(Action effect)
In this case, the code printing unit can be peeled off, discarded, or attached to another object. For example, in a hospital or the like, the code printing unit peeled off from the absorbent article can be attached to a recording sheet such as a medical chart, and the user can easily record the connection between the IC tag and the IC tag.

<Sixth aspect>
A plurality of the code printing units are provided at intervals in the drawing direction of the drawing unit,
The one-dimensional or two-dimensional code of each code printing unit includes IC tag installation position information determined corresponding to the separation distance between each code printing unit and the IC tag,
The absorbent article of the 4th or 5th aspect.

(Action effect)
In this aspect, by selecting the code printing unit to be read according to the installation position of the IC tag from a plurality of code printing units, it is possible to simultaneously read the unique information of the IC tag and the IC tag installation position information. Not only the association with the sex article or the wearer but also the association between the installation position after adjustment of the IC tag and the wearer can be easily performed.
In particular, as described above, when the code printing unit is provided in the adhesive seal, the reading error is caused by peeling off only the code printing unit used for reading, or by peeling off the code printing unit not used for reading. Etc. can be prevented.
Also, when providing perforations in the drawer as described above, providing perforations on the IC tag side of each code printing unit separates the code printing unit used for reading or conversely, codes not used for reading The printing unit can be separated, and reading errors and the like can be prevented.

<Seventh aspect>
A plurality of first identification marks representing the IC tag installation position are provided on the liquid impermeable sheet or a member on the back side of the liquid impermeable sheet at intervals in the drawing direction of the drawing portion,
The first identification mark is visible from the back side of the absorbent article,
A plurality of second identification displays that are the same as or correspond to the first identification display are provided in the drawing portion at intervals in the drawing direction,
When the IC tag is located at each IC tag installation position displayed by the first identification display, a portion of the extraction portion that protrudes from the outlet is the same as or corresponding to the first identification display. Identification display is exposed,
The absorbent article of any one of the first to sixth aspects.

(Action effect)
In this aspect, by looking at the second identification display, it can be known that the IC tag is located at or near the position specified by the same or corresponding first identification display, and the inside of the absorbent article The position of the IC tag located in the can be easily grasped.

  ADVANTAGE OF THE INVENTION According to the present invention, there are advantages such as an absorbent article which has a built-in excretion detection sensor, is low in cost, has less influence on wearing feeling, and is capable of adjusting the position of excretion detection. Be

It is a block diagram of the excretion detection system of a disposable diaper. It is a functional block diagram of the excretion detection system of a disposable diaper. It is explanatory drawing of the communicable range of a 1st electromagnetic wave and a 2nd electromagnetic wave. It is explanatory drawing about the communicable range of a 1st electromagnetic wave and a 2nd electromagnetic wave. It is explanatory drawing about the communicable range of a 1st electromagnetic wave and a 2nd electromagnetic wave. It is a flowchart which shows the flow of operation | movement of an application. It is an image figure of the application which shows an initial screen. It is an image figure of the user interface which shows the state of a registrant's disposable diaper. It is an image figure of the user interface which shows the notice state by push notice. It is a flowchart which shows the flow of operation | movement of the excretion detection system of a disposable diaper. It is a block diagram of the excretion detection system of a disposable diaper. It is a block diagram of the excretion detection system of a disposable diaper. It is a top view which shows the inner surface of the pants-type disposable diaper of an unfolded state. It is a top view which shows the outer surface of the pants-type disposable diaper of an unfolded state. It is 3-3 sectional drawing of FIG. It is 4-4 sectional drawing of FIG. (A) 5-5 sectional drawing of FIG. 13, (b) 6-6 sectional drawing of FIG. It is a perspective view of a pants type disposable diaper. It is a top view which shows the outer surface of the pants-type disposable diaper of an unfolded state. It is a top view which shows the inner surface of the pants-type disposable diaper of an unfolded state. It is a top view which shows a display sheet and a hot melt adhesive. It is sectional drawing corresponded to the 3-3 section of FIG. It is sectional drawing corresponded to the 3-3 section of FIG. It is a top view which shows the inner surface of the tape type disposable diaper of an unfolded state. It is a top view which shows the outer surface of the pants-type disposable diaper of an unfolded state.

  Hereinafter, various forms of an absorbent article incorporating an IC tag as an excretion detection sensor will be described in detail by taking an example of an excretion detection system of a disposable diaper.

<First Example of Excretion Detection System>
FIG. 1 shows a block diagram of the first example of the excretion detection system, and FIG. 2 shows a functional block diagram. Although this excretion detection system assumes the case of centrally managing the timing of changing the disposable diapers of three disposable diaper wearers in the same sick room, the number of persons to be managed is not limited to three, It may be three or more, or three or less.

  The excrement detection system of the example shown in FIGS. 1 and 2 includes disposable diapers 110a to 110c each incorporating a sensor carrier 170 to which IC tags 120a to 120c are attached, and a reader 140 communicating with the IC tags 120a to 120c. It consists of a smartphone 150 as an external device that communicates with the reading device 140. Arrows shown in FIG. 1 schematically represent radio waves. Among these, solid arrows indicate the first radio wave RW1 transmitted from the reader 140 and received by the IC tags 120a to 120c and used as a power source of the IC tags 120a to 120c. White arrows indicate the second radio wave RW2 transmitted from the IC tags 120a to 120c, received by the reader 140, and including information on the unique numbers of the IC tags 120a to 120c. The broken arrow indicates the third radio wave RW3 transmitted from the reading device 140, received by the smartphone 150, and among the unique numbers of the IC tags 120a to 120c, the information of the unique number received by the reading device 140.

(IC tag)
Each disposable diaper 110a to 110c has a sensor carrier 170 having a built-in portion 171 (described later) located between the top sheet 30 and the liquid impermeable sheet 11, and the IC tags 120a to 120c It is provided in the built-in portion of the sensor carrier 170. And sensor carrier 170 has drawer part 172 prolonged from a portion in which IC tags 120a-120c were provided, and drawer part 172 can be pulled out outside disposable diapers 110a-110c. Therefore, the user can move the sensor carrier 170 together with the IC tags 120a to 120c by pulling out the drawer portion 172, and can adjust the IC tags 120a to 120c, that is, the excretion detection position. The sensor carrier 170 of the middle stage disposable diaper 110b in FIG. 1 has the lead-out portion 172 drawn out from the sensor carriers 170 of the other disposable diapers 110a and 110c, and as a result, the position of the IC tag 120b is greater than that of the waist It has become. The moving structure of the sensor carrier 170 will be described later.

  The IC tags 120a to 120c are passive types that do not contain a battery. As shown in FIG. 2, the IC tags 120a to 120c have antenna units 121a to 121c that receive the first radio wave RW1 transmitted from the antenna unit 141 of the reading device 140, and the antenna units 121a to 121c The received first radio wave RW1 is converted into power, and power is supplied to the IC chips 122a to 122c. The IC chips 122a to 122c have an internal memory for storing unique information, and when the first radio wave RW1 is received, the IC chips 122a to 122c control the antenna units 121a to 121c to include unique information. Send two radio waves RW2. The reading device 140 receives the second radio wave RW2, and the reading device 140 transmits information of the received unique number as the third radio wave RW3.

  Most of the IC tags 120a to 120c are covered with the excrement fluid after absorption of excrement fluid such as urine, and communication of at least one of the first radio wave RW1 and the second radio wave RW2 becomes difficult. Since the liquid has the property that it is difficult to transmit radio waves, the first radio wave RW1 directed to the IC tags 120a to 120c is around the IC tag when the reader 140 can not receive the second radio wave RW2 (shielded state) It is shielded by the excrement liquid, and the antenna units 121a to 121c can not receive the first radio wave RW1, or the antenna units 121a to 121c receive the first radio wave RW1, but the second transmitted from the antenna units 121a to 121c The radio wave RW2 is in a state of being shielded by the excrement fluid. That is, it can be known that there is an excretion due to the interruption of the reader 140 and the IC tags 120a to 120c. As described above, when excretion is detected by utilizing the property that the liquid hardly transmits radio waves, it is not necessary to separately provide a sensor such as a humidity sensor for detecting the liquid, and the manufacturing cost of the disposable diaper can be suppressed. Moreover, since only thin IC tags 120a to 120c are provided in the disposable diapers 110a to 110c, there is little risk of giving a feeling of foreign matter or discomfort to the wearer of the disposable diapers 110a to 110c.

  The unique information stored in the IC tags 120a to 120c is information such as different numbers, and is stored in the internal memories of the IC chips 122a to 122c. Although it is desirable that all of the disposable diapers 110a to 110c include the IC tags 120a to 120c having unique information different from each other, the present invention is not limited thereto, and at least a wearer of the disposable diaper simultaneously managed by the excretion detection system There should be a disposable diaper having different specific information for the number of people. In other words, it is not necessary to attach different unique information to all manufactured products unless the same unique information is simultaneously used by lot management. For example, when the unique information is a unique number and a 12-bit internal memory is adopted, 4096 different unique numbers can be added, but even with such a limited number, the sales form (place, area, By changing the time, etc., it is possible to avoid the situation where disposable diapers of the same unique number are used at the same time.

(Two-dimensional code)
On each of the disposable diapers 110a to 110c, two-dimensional codes 111a to 111c corresponding to unique information such as unique numbers of the built-in IC tags 120a to 120c are respectively printed. The two-dimensional codes 111 a to 111 c can be read by the camera 151 of the smartphone 150 via the dedicated application 160. The two-dimensional codes 111a to 111c are not limited to the QR code (registered trademark) as in the illustrated example, but may be another type of two-dimensional code, and one-dimensional codes (bars) instead of the two-dimensional codes. Code). In addition, specific information such as a corresponding unique number may be additionally printed on these two-dimensional code and one-dimensional code in order to enable manual input and the like. Further, the two-dimensional code and the one-dimensional code can include IC tag installation position information and the like as described later, in addition to the unique information of the IC tag.

(Reader)
As shown in FIG. 2 and FIG. 3 to FIG. 5, the reading device 140 has an antenna portion 141 for transmitting the first radio wave RW1 and receiving the second radio wave RW2 transmitted by the IC tags 120a to 120c. The communication unit 142 for transmitting the radio wave RW3 and the control unit 143 for controlling them are provided, and the smart phone 150 can receive the power supply to the IC tags 120a to 120c and the unique information transmitted from the IC tags 120a to 120c. It plays a role of relaying.

  The communicable range 181 of the reading device 140 and the IC tags 120a to 120c has a radius that can cover the entire inside of the patient room 180, for example, when the reading device 140 is installed approximately at the center of the patient room 180 as shown in FIG. It can be a spherical range of about 2 to 6 m. Further, the communicable range of the reading device 140 and the smartphone 150 can be set within a spherical range of, for example, a radius of about 15 m so as to cover the entire inside of the hospital room 180. In this case, unless the third radio wave RW3 transmitted by the reading device 140 is in the shielding state, when the administrator holds the smartphone 150 and enters the hospital room 180, the smartphone 150 can receive the third radio wave RW3.

  Of course, the communicable range between the reader 140, the IC tags 120a to 120c and the smartphone 150 is not limited to these examples, and the respective capabilities of the reader 140, the IC tags 120a to 120c, and the smartphone 150, and the disposable diaper It can be determined appropriately depending on the environment in which the excretion detection system is used. Further, the installation location of the reading device 140 is not limited to the illustrated example, and can be appropriately determined.

  For example, in the case where the communicable range between the reader and the IC tag is narrow and is within a spherical range of about 2-3 m in radius, it can be coped with by using one reader for one disposable diaper. . Specifically, as shown in FIG. 4, the reading devices 140a to 140c are arranged in the corresponding disposable diapers 110a to 110c such that the IC tags 120a to 120c provided on the corresponding disposable diapers 110a to 110c fall within the communicable range. Place around the bed used by disposable diaper wearers.

  Further, when the communicable range between the reader and the IC tag is further narrow, as shown in FIG. 5, the antenna portions 141a to 141c of the readers 140a to 140c are formed in a sheet, and under the mattress of the bed. By arranging for spreading, the narrowness of the communication range can be covered.

  By appropriately changing the arrangement and configuration of the reader as in these examples, a cheap IC tag having a narrow communicable range can be used, and therefore, the manufacturing cost and the selling price can be further suppressed.

  The information possessed by the third radio wave RW3, that is, the unique information received by the reading device 140 among the unique information of the IC tags 120a to 120c can also be transmitted from the reading device 140 to the smart phone 150 via the Internet. According to this, even if the reading device 140 and the smart phone 150 are at a distant position, the manager who possesses the smart phone 150 can receive the notification. Alternatively, information on excretion detection of the disposable diapers 110a to 110c may be periodically uploaded from the reading device 140, for example, on the cloud storage of the Internet, and the information may be updated. The information on the excretion detection of the disposable diapers 110a to 110c may be read from anywhere by accessing the.

(smartphone)
As shown in FIG. 2, the smartphone 150 controls the operation of the camera 151, the communication unit 152 that can receive the third radio wave RW3 from the communication unit 142 of the reading device, the speaker 153, the touch panel liquid crystal screen 154, and these components. The control unit 155 is provided, and has a photographing function, a wireless communication function, an audio reproduction function, and a moving image reproduction function. When using the excretion detection system of the disposable diaper, the camera 151 of the smartphone 150, the communication unit 152, the speaker 153, and the touch panel liquid crystal screen 154 are controlled by the control unit 155 that executes an application 160 described later.

  The smartphone 150 mainly plays the role of associating the disposable diapers 110a to 110c with the wearer, the disposable diapers 110a to 110c of the specific information not included in the third radio wave RW3, or the wearer thereof, the disposable diapers having excreted It plays a role of notifying the administrator as 110a to 110c or the wearer thereof. Note that, instead of the smartphone 150, a tablet terminal having the same function or another information processing terminal may be used. In addition, excretion detection may be centrally managed using a personal computer instead of a smartphone or a tablet, or may be linked to a nurse call and notification of excretion detection may be performed by a nurse call. Further, the unique information received by the reading device 140 among the unique information of the IC tags 120a to 120c may be transmitted by wire communication by electric signal instead of or together with wireless communication by radio wave. Furthermore, wireless communication is not limited to Bluetooth (registered trademark) or Wi-Fi (registered trademark).

(application)
The application 160 installed in the smart phone 150 is mainly for performing association between specific information and a disposable diaper wearer, detection of excretion, and notification of excretion. Hereinafter, the application 160 will be described based on an operation flowchart shown in FIG. 6 and an image view of a user interface screen shown in FIGS.

  First, when the application 160 is activated in step ST101, the application 160 displays an initial screen 161 as shown in FIG. 7 on the touch panel liquid crystal screen 154 in step ST102.

  The initial screen 161 is provided with a disposable diaper wearer registration button 1611, a registrant management button 1612, a setting change button 1613, a detection start / end button 1614, and the disposable diaper wearer registration button 1611 is tapped. When the registrant management button 1612 is tapped in the disposable diaper wearer registration mode, the mode is switched to the registrant management mode, and when the setting change button 1613 is tapped, the setting change mode is entered. In addition, detection start / end button 1614 alternately switches the start / end of detection of excretion every time it is tapped.

  The application 160 confirms the tapped button in step ST103, and executes an operation corresponding thereto in steps ST103-1 to ST103-4. If the button is not tapped, the process proceeds to step ST103-5 (does nothing) and enters the input standby state.

  The application 160 repeats until the steps ST102 and ST103 are finished. Hereinafter, the operations in step ST103-1 to step ST103-4 will be described in detail.

(Step ST103-1: disposable diaper wearer registration mode)
In step ST103-1, the application 160 executes a program of the disposable diaper wearer registration mode. The disposable diaper wearer registration mode is a mode for associating the unique information of the IC tag with the disposable diaper wearer, and is started by tapping the disposable diaper wearer registration button 1611 of the initial screen 161.

  In the disposable diaper wearer registration mode, the application 160 first reads the two-dimensional codes 111a to 111c, and then the administrator inputs the name of the disposable diaper on which the read two-dimensional code is printed. Induce The application 160 stores the unique number acquired by reading the two-dimensional code and the input disposable diaper wearer name as a pair, and associates the unique number of the IC tag with the disposable diaper wearer. Therefore, the administrator can associate the unique number of the IC tag with the disposable diaper wearer with a simple operation. In addition, when the two-dimensional code includes IC tag installation position information described later, based on the unique information of the IC tag and the IC tag installation position information, in addition to the association between the IC tag and the absorbent article or its wearer, It is possible to easily associate the installation position after adjustment of the IC tag with the wearer.

  The disposable diaper wearer registration mode is not limited to this mode. For example, the method of acquiring unique information is not limited to reading a code such as a two-dimensional code, and a character string such as a password or a symbol may be printed on a disposable diaper, and unique information can be acquired by reading or inputting these. It may be configured as follows. Further, the correspondence between the unique information and the disposable diaper wearer is not limited to the correspondence according to the name of the disposable diaper wearer, but may be made by the number of a hospital room or a bed, the face photograph of the disposable diaper wearer, or the like. In addition, the IC tag installation position information may be input by the input function of the smartphone instead of reading a code such as a two-dimensional code.

(Step ST103-2: registrant management mode)
In step ST103-2, the application 160 executes a program in the registrant management mode. The registrant management mode is a mode for performing confirmation, correction, or deletion of registered contents of a disposable diaper wearer (hereinafter referred to as a registrant) associated with a unique number in the disposable diaper wearer registration mode, It starts when the registrant management button 1612 of the initial screen 161 is tapped.

(Step ST103-3: setting change mode)
In step ST103-3, the application 160 executes a program in the setting change mode. The setting change mode is a mode for setting the notification method to the administrator, the character size in the application, the brightness of the screen, and the volume of the notification sound, and the setting change button 1613 of the initial screen 161 is tapped. Start with In addition, the setting content is not limited to this form, for example, as described later, when adopting a mode in which a plurality of IC tags are provided in one disposable diaper, setting of detection contents of the excretion detection system of the disposable diaper It may be made possible in this mode.

(Step ST103-4: Switching of detection start / end of excretion)
In step ST103-4, the application 160 switches the start / end of the excretion detection of the disposable diaper alternately. When the application 160 detects the excretion, as shown in the user interface screen 162 shown in FIG. 8, one column of the registrant and the presence or absence of the excretion are associated with each other and displayed on the touch panel liquid crystal screen 154. For example, for the wearer of the disposable diaper whose excretion has been detected, the indication of the presence or absence of the excretion is switched from "none" to "presence", and a notification sound is reproduced from the speaker 153 to notify the administrator. Further, for example, when the excretion is detected in the standby state where the touch panel liquid crystal screen 154 of the smartphone 150 is turned off, a push notification 163 as shown in FIG. 9 (for example, “diaper change of user C is required”, etc. And the notification sound to notify the administrator.

  In the example of the user interface screen of the application 160 described above, the arrangement, shape, display method, size, color arrangement, pattern, etc. of each button can be appropriately changed, and the method of notification is not particularly limited.

(Flow of the entire operation)
The flow of the operation of the detection system will be described based on the operation flowchart shown in FIG. Here, the administrator emphasizes the flow of the operation of the entire system after the disposable diapers 110a to 110c into which the IC tags 120a to 120c are incorporated are attached to the wearer. For details of the operation flow to be performed, refer to the item of the application 160.

  First, in use, each disposable diaper 110a-110c pulls out the drawer part 172 of the sensor carrier 170 as needed, and adjusts the installation position of IC tag 120a-120c. Then, in step ST201, the administrator activates the excretion detection system of the disposable diaper and performs transmission / reception of the first radio wave RW1 to the third radio wave RW3. The transmission / reception of each radio wave is as described above (see FIG. 1). In addition, starting of the excretion detection system of a disposable diaper here is a disposable diaper including the setting of communication apparatuses, such as Bluetooth (trademark) and Wi-Fi (trademark), and starting of application 160 in smart phone 150. It means that it is in the state which can start the excretion detection of

  Next, in step ST202, the administrator reads the two-dimensional codes 111a to 111c of the disposable diapers 110a to 110c in the disposable diaper wearer registration mode of the application 160 of the smartphone 150, and the unique numbers of the IC tags 120a to 120c ( If the two-dimensional codes 111a to 111c include IC tag installation position information, the IC tag installation position information is also associated with the disposable diaper wearer and registered, and tap the detection start / end button 1614 to excrete Start detection.

  Next, in step ST203, the application 160 of the smartphone 150 collates whether all the unique information registered in step ST202 is included in the transmission information of the third radio wave RW3, and according to the result of the collation, step ST203. -1 to step ST203-3. The application 160 repeats the steps from step ST203 to step ST203-3 until excretion is detected.

  Since the reading device 140 receives the second radio wave RW2 transmitted from the IC tags 120a to 120c and transmits the unique information included in all the received second radio waves RW2 in the third radio wave RW3, for example, a smartphone When the third radio wave RW3 is received, the unique information included in the third radio wave RW3 is compared with the unique information registered on the smartphone 150 side, and if there is unique information not included in the third radio wave RW3 The second radio wave RW2 can not be received from the IC tag corresponding to the unique information, and it can be determined that the disposable diaper incorporating the IC tag has been excreted. In this example, although the second radio wave RW2 is transmitted from the IC tags 120a to 120c, depending on the use mode of the disposable diaper and the installation method of the reading device 140, the reading device 140 can not receive the second radio wave RW2 as well. Although there is a possibility that, for example, the IC tag can not be received four times for each IC tag, it is determined that there is an excretion, but it is not limited thereto.

  If the application 160 finds that both match as a result of the comparison in step ST203, the application 160 proceeds to step ST203-1 and enters a standby state to wait for excretion detection without doing anything.

  In addition, if the application 160 has the unique information which is not included in the third radio wave RW3 as a result of the comparison, the process proceeds to step ST203-2. When the process proceeds to step ST203-2, the application 160 increments the count of the counter allocated to the specific information not included in the third radio wave RW3. In the initial state, this counter is 0, and when it reaches 4, the process proceeds to step ST203-3. If the process proceeds to step ST203-3, the administrator is notified. That is, in order to prevent a malfunction, it is not considered that there is excretion until the counter reaches 3.

  Since the administrator can specify the disposable diaper wearer whose excretion has been detected by the notification, in step ST204, the disposable diaper is replaced. At this time, the lead-out portion 172 of the sensor carrier 170 is pulled out as needed to adjust the installation positions of the IC tags 120a to 120c. Thereafter, again in step ST202, if the unique number of the new disposable diaper is associated with the disposable diaper wearer and registration is made, it is possible to detect excretion.

<Second example of excretion detection system>
The excretion detection system of the second example, as shown in FIG. 11, includes disposable diapers 210a to 210c each incorporating a sensor carrier 170 provided with IC tags 120a to 120c, and reading devices 240a to 240c with a notification function. It is possessed.

  In addition, the notification function reading devices 240a to 240c transmit light of one type of radio waves and receive light waves emitted from the IC tags 120a to 120c by the antenna units 241a to 241c, the speakers 242a to 242c, and light emission by LEDs and the like. It comprises the sections 243a to 243c, and performs reading of the IC tag and notification to the administrator at the time of detection of excretion. Although the communicable range of the notification devices 240a to 240c with the notification function and the IC tags 120a to 120c can be appropriately determined, for example, it can be a spherical range with a radius of about 2 to 3 m.

  Arrows shown in FIG. 11 schematically represent radio waves, and solid arrows are transmitted from reading devices with a notification function 240a to 240c and received by the corresponding IC tags 120a to 120c, respectively. The first radio wave RW1 used as a power source of the tags 120a to 120c is shown. The white arrows indicate the second radio waves RW2 transmitted from the IC tags 120a to 120c and received by the corresponding reading devices with a notification function 240a to 240c. Unlike the first example described above, the second example does not require the third radio wave RW3.

  Also, in the excretion detection system of the second example, unlike the first example described above, two-dimensional codes 111a to 111c etc. corresponding to unique information such as the unique numbers of the IC tags 120a to 120c built in the disposable diaper Is not printed.

  In the excretion detection system according to the second example, only the IC tags 120a to 120c provided on the corresponding disposable diapers 210a to 210c can communicate within the communicable range (a spherical shape having a radius of about 2 to 3 m). Disposable diapers 210a-210c are placed around the bed used by the disposable diaper wearer. Moreover, each disposable diaper 210a-210c pulls out the drawer part 172 of the sensor carrier 170 as needed, and adjusts the installation position of IC tag 120a-120c. When the second radio wave RW2 from the IC tags 120a to 120c can not be received, a notification sound is emitted by the speakers 242a to 242c in the notification devices 240a to 240c with notification functions corresponding to the IC tags 120a to 120c, or light emission By the light emission from the units 243a to 243c or a combination thereof, the administrator can know that the disposable diaper corresponding to the notification devices with a notification function 240a to 240c is excreted. As described above, only by whether the second radio wave RW2 transmitted by the corresponding IC tag can be received by the notification reading devices 240a to 240c (in other words, the IC tags 120a to 120c and the reading devices 240a to 240c with the notification function) Detection of the presence or absence of excretion, the third radio wave RW3 in the disposable diaper excretion detection system of the first example and the system elements related thereto are not required, and each of the IC tags It can be used without the operation | work which matches intrinsic | native information and a disposable diaper wearer or a disposable diaper.

  In the illustrated example, a plurality of wearers are assumed, but it is needless to say that the present invention can be applied to management of one disposable diaper wearer as in the third example described later. Others are the same as the excretion detection system of the first example, and thus the description thereof is omitted.

<Third Example of Excretion Detection System>
The excretion detection system of the third example relates to, for example, home care when the excretion detection system of the first example is applied to management of a single disposable diaper wearer. Therefore, the basic configuration of the excretion detection system of the third example is the same as that of the first example, and as shown in FIG. 12, disposable diapers 110a to 110t incorporating a sensor carrier 170 attached with IC tags 120a to 120t. (The disposable diaper 110 a in the figure is assumed to be worn), the reading device 140, and the smartphone 150. For example, the 20 disposable diapers 110a to 110t are sold as one set, and include two-dimensional codes 111a to 111t corresponding to unique information of the IC tags 120a to 120t included in each. In use, each disposable diaper 110a-110t pulls out the drawer part 172 of the sensor carrier 170 as needed, and adjusts the installation position of IC tag 120a-120t. Further, the application 160 is installed in the smartphone 150, and registration of unique information of the disposable diaper 110a being worn, detection of excretion, and notification of excretion are performed.

  Arrows shown in FIG. 12 schematically represent radio waves, and solid arrows are transmitted from the reading device 140, received by the IC tag 120a, and used as a power source of the IC tag 120a. It shows RW1. The white arrow indicates the second radio wave RW2 transmitted from the IC tag 120a and received by the reading device 140 and including the unique information of the IC tag 120a. Furthermore, the broken arrow indicates the third radio wave RW3 transmitted from the reading device 140 when the reading device 140 receives the second radio wave RW2 and received by the smartphone 150 and including the unique information of the IC tag 120a. .

  In the first example of the excretion detection system, the unique information and the input name of the disposable diaper wearer are stored as one set in the application 160, but the excretion detection system of the third example is The name of the disposable diaper wearer does not necessarily have to be stored, as it applies to the management of one disposable diaper wearer. The aspect of the other application 160, the method of associating the unique information with the disposable diaper wearer, the communicable range, the notification method, and the like are the same as in the first example, and thus the description thereof is omitted.

  In the excretion detection system of the third example, as in the first example, the presence or absence of excretion is detected based on whether the smartphone 150 can receive the third radio wave RW3 including unique information associated with the disposable diaper 110a. For example, when the other disposable diapers 110b to 110t are placed on the side of the bed on which the disposable diaper wearer lies, the other disposable diapers 110b to 110t are within the communicable range of the reading device 140. Even if it differs from the 2nd example, excretion in disposable diaper 110a under wearing can be detected appropriately.

<Another example of the excretion detection system>
The above-mentioned excretion detection system for disposable diapers, the excretion detection system for disposable diapers, its sensitivity, detection contents, arrangement and performance of each component, user interface, etc., so as to be suitable for the number of people to be centrally managed Etc. can be changed flexibly.

  As one example, as described later, the excrement detection system of the first example is applied, and a plurality of IC tags are provided in different positions in one disposable diaper, and in addition to the detection of the presence or absence of excretion, the degree of absorption or The absorption position can be detected. In this case, a plurality of IC tags may be provided on the sensor carrier, or some of the IC tags may be attached to non-moving members other than the sensor carrier. Specifically, the larger the amount of excretion, the broader the absorption range of the absorber, and the more the number of IC tags in the radio wave shielding state. Using this characteristic, for example, when the number of IC tags in the shielded state is 2 or less, the application 160 determines that the absorbed amount (the amount of excretion) is small, and the number of IC tags in the shielded state is 3 or less. At that time, it can be judged that the absorption amount (excretion amount) is large, that is, the degree of absorption can be detected. Further, by providing a plurality of IC tags with intervals (or not) in the front-rear direction, if the IC tags on the back side are in the blocking state, the back side absorbs and the IC tags on the belly side are in the blocking state If it is, it can be judged that the ventral side absorbs. That is, the absorption position in the disposable diaper can be detected. Thus, the excretion detection system of the first example can change the detection content of the excretion detection system of the disposable diaper by changing the arrangement and / or the number of the IC tags.

  Moreover, in the excretion detection system of the above-mentioned disposable diaper, although the disposable diaper wearer who mounts a disposable diaper and the management who replaces a disposable diaper are demonstrated as another person, the same person may be sufficient. For example, the above-described excretion detection system may be used by a person with a lower body paralysis disorder to find out whether his / her disposable diaper is excreted.

  Next, an example of a pant type disposable diaper and a tape type disposable diaper will be taken to describe the form of the absorbent article in detail.

<Example of pants type disposable diaper>
FIGS. 13-18 has shown an example of the underpants-type disposable diaper which can be used as disposable diaper 110a-110c, 210a-210c of the above-mentioned excretion detection system. The dotted portion in the cross-sectional view shows an adhesive as a bonding means for bonding the components located on the front side and the back side, and the solid, bead, curtain, summit or spiral application, or pattern coat of the hot melt adhesive (Hot melt adhesive transfer by letterpress method) or the fixed part of the elastic member is formed by application to the outer peripheral surface of the elastic member such as comb gun or sure wrap application instead or together with this is there. As the hot melt adhesive, for example, those of EVA type, adhesive rubber type (elastomer type), olefin type, polyester / polyamide type, etc. exist, but they can be used without particular limitation. As a joining means for joining the respective constituent members, means by material welding such as heat sealing or ultrasonic sealing can be used.

  In this pants type disposable diaper, the front exterior body 12F constituting at least the waist portion of the front body F and the rear exterior body 12B constituting at least the waist portion of the rear body B, and the front exterior body 12F through the crotch The inner body 200 is provided on the outer bodies 12F and 12B so as to extend to the rear outer body 12B, and both sides of the front outer body 12F and both sides of the rear outer body 12B are joined to each other. By forming the side seal portion 12A, the opening formed by the front and rear ends of the exterior body 12F, 12B becomes a waist opening WO through which the wearer's trunk passes, and the exterior body 12F, 12B is provided on both sides in the width direction of the interior body 200. A portion surrounded by the lower edge and the side edge of the inner body 200 is a leg opening LO through which the leg passes. The interior body 200 is a portion that absorbs and holds excrement such as urine, and the exterior bodies 12F and 12B are portions for supporting the interior body 200 with respect to the body of the wearer. The symbol Y indicates the total length of the diaper in the unfolded state (the length in the front-rear direction from the edge of the waist opening WO of the front part F to the edge of the waist opening WO of the back part B), and the symbol X indicates the diaper in the unfolded state Indicates the full width of the

  The pants-type disposable diaper of this embodiment has a waistline region T defined as a front-rear direction range (a range from the waist opening WO to the upper end of the leg opening LO) having the side seal portion 12A and a portion forming the leg opening LO. It has an intermediate region L defined as a front-rear direction range (between the front-rear direction area having the side seal portion 12A of the front body F and the front-rear direction area having the side seal portion 12A of the rear body B). The waistline region T can be divided into a “waist” W that conceptually forms an edge of the waist opening and a “waist lower part” U that is a lower part of the waist. In general, when there is a boundary (for example, the thickness and the elongation rate of the elastic member change) in the waist area T in which the stretching stress in the width direction WD changes, the waist opening WO side is closer to the waist than the boundary closest to the waist opening WO If there is no such boundary, the waist extension portion 12E extending toward the waist opening WO side than the absorber 56 or the inner body 200 becomes the waist portion W. The length in the front-rear direction varies depending on the size of the product, and can be determined as appropriate. For example, the waist portion W can be 15 to 40 mm and the waist lower portion U can be 65 to 120 mm. On the other hand, both side edges of the middle region L are rounded in a U-shape or a curve along the circumference of the adherend's leg, and this is a portion along the circumference of the wearer's leg.

(Interior body)
The inner body 200 can have any shape, but is rectangular in the illustrated form. As shown in FIGS. 15-17, the inner body 200 is provided with a top sheet 30 on the body side, a liquid impermeable sheet 11, and an absorbent element 50 interposed therebetween. Yes, it is the main part that carries the absorption function. The code | symbol 40 has shown the intermediate sheet (second sheet) provided between the top sheet 30 and the absorption element 50, in order to make the liquid which permeate | transmitted the top sheet 30 transfer to the absorption element 50 rapidly, and 60 11 shows the rising gathers 60 extending from both sides of the inner body 200 so as to come in contact with the periphery of the wearer's leg in order to prevent leakage of waste on both sides of the inner body 200.

(Top sheet)
The top sheet 30 has liquid permeability, and can be exemplified by a porous or non-porous non-woven fabric, a porous plastic sheet, and the like. Moreover, among these non-woven fabrics, the raw material fibers are not particularly limited. For example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, regenerated fibers such as rayon and cupra, natural fibers such as cotton, etc., mixed fibers of which two or more are used, composite fibers Etc. can be illustrated. Furthermore, the non-woven fabric may be produced by any processing. Examples of the processing method include known methods such as spun lace method, spun bond method, thermal bond method, melt blown method, needle punch method, air through method, point bond method and the like. For example, if flexibility and drape are required, the spun bond method and spun lace method require bulkiness and softness, and the air through method, point bond method and thermal bond method are preferable processing methods. .

  The top sheet 30 may be formed of one sheet or may be formed of a laminated sheet obtained by laminating two or more sheets. Similarly, the top sheet 30 may be a single sheet or two or more sheets in the plane direction.

  Both sides of the top sheet 30 may be folded back at the side edge of the absorbent element 50, or may be extended laterally beyond the side edge of the absorbent element 50 without being folded back.

  It is desirable that the top sheet 30 be fixed to a member adjacent to the back side by a bonding means such as heat sealing, ultrasonic sealing or the like by material welding or a hot melt adhesive.

(Intermediate sheet)
In order to rapidly transfer the liquid that has permeated the top sheet 30 to the absorber, an intermediate sheet (also referred to as a “second sheet”) 40 can be provided, which has a higher liquid permeation rate than the top sheet 30. The intermediate sheet 40 is used to rapidly transfer the liquid to the absorber to enhance the absorption performance of the absorber, and to prevent the phenomenon of "reversion" of the absorbed liquid from the absorber. The intermediate sheet 40 can be omitted.

As the intermediate sheet 40, the same material as the top sheet 30, a spunlace nonwoven fabric, a spunbond nonwoven fabric, an SMS nonwoven fabric, a pulp nonwoven fabric, a mixed sheet of pulp and rayon, a point bond nonwoven fabric or a crepe paper can be exemplified. In particular, an air through non-woven fabric is preferable because it is bulky. It is preferable to use a core-sheath composite fiber as the air-through nonwoven fabric. In this case, the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable. Basis weight is preferably ^{17~80g / m 2, 25~60g / m} 2 is more preferable. The thickness of the non-woven material fiber is preferably 2.0 to 10 dtex. In order to make the nonwoven fabric bulky, it is also preferable to use eccentric fibers having no core in the center, hollow fibers, eccentric and hollow fibers as mixed fibers of all or part of the raw material fibers.

  The intermediate sheet 40 in the illustrated example is disposed at the center shorter than the width of the absorber 56, but may be provided over the entire width. The length in the front-rear direction of the intermediate sheet 40 may be the same as the total length of the diaper, may be the same as the length of the absorbent element 50, or may be within a short length centering on the liquid receiving area.

  It is desirable that the intermediate sheet 40 be fixed to a member adjacent to the front side or the back side by a bonding means such as heat sealing, ultrasonic welding or by material welding, or a hot melt adhesive.

(Liquid impervious sheet)
The material of the liquid impermeable sheet 11 is not particularly limited. For example, a plastic film made of an olefin resin such as polyethylene or polypropylene, a laminated non-woven fabric having a plastic film on the surface of a non-woven fabric, or a plastic film A laminated sheet etc. which overlapped and joined a nonwoven fabric etc. can be illustrated. For the liquid impermeable sheet 11, it is preferable to use a material having liquid impermeability and moisture permeability, which is preferably used from the viewpoint of preventing migration. As a plastic film having moisture permeability, a microporous plastic film obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction Is widely used. In addition, non-woven fabric using microdenier fibers, reinforcement of leakproofness by reducing the voids of the fibers by applying heat and pressure, and methods of coating highly water-absorbent resin or hydrophobic resin or water repellent agent The sheet made liquid impermeable without using a plastic film can also be used as the liquid impermeable sheet 11, but the adhesive strength is sufficient at the time of adhesion through the hot melt adhesive with the cover nonwoven fabric 13 described later. It is desirable to use a resin film to obtain.

  The liquid impervious sheet 11 has a width that fits on the back side of the absorbent element 50 as shown, and the side of the top sheet 30 of the absorbent element 50 is wound around both sides of the absorbent element 50 in order to enhance leakproofness. It can also be extended to both sides. The width of the extension portion is preferably about 5 to 20 mm on each side.

(Get up and gather)
The rising gathers 60 are for preventing side leakage, extend along the both sides of the inner body 200 over the entire longitudinal direction LD, and stand upright from the side of the inner body 200 to the front side.

  In the rising gatherer 60 shown in FIGS. 13, 15 and 16, the root side portion 60B is obliquely erected toward the widthwise center side, and the tip side portion 60A is obliquely erected toward the widthwise outer side from the middle portion. However, the present invention is not limited to this, and appropriate changes can be made, such as a form of standing up to the center in the width direction as a whole.

  Describing in more detail, the rising gather 60 of the illustrated example folds the band-shaped gather non-woven fabric 62 having a length equal to the longitudinal length of the inner body 200 in the width direction WD at the tip end and folds it into two. A plurality of elongated gather elastic members 63 are fixed between the folded portion and the sheet in the vicinity thereof in a stretched state along the longitudinal direction and at intervals in the width direction WD. The proximal end (the end opposite to the sheet-folded portion in the width direction WD) of the rising gather 60 is fixed to the side opposite to the liquid impermeable sheet 11 in the inner body 200 The portion other than the root portion 65 is a main portion 66 (portion on the side of the folded portion) which extends from the root portion 65. Further, the main body portion 66 has a root side portion 60B extending to the center in the width direction, and a tip side portion 60A which is folded back at the tip of the base side portion 60B and extends outward in the width direction. This form is a surface contact type rising gather 60, but a line contact type rising gather 60 which is not folded back in the width direction can also be adopted. And while being made into the falling part 67 fixed with respect to the side surface of the top sheet 30 in the state of front-back both ends of the main-body part 66 in the state of falling down, the front-back direction intermediate part located among these is non-fixed A gather elastic member 63 along the longitudinal direction LD is fixed in an extended state to at least a tip end portion of the free portion 68.

  In the rise-up gather 60 configured as described above, the contraction force of the gather elastic member 63 acts to bring the both ends in the back and forth direction closer, but the both ends in the front and back direction of the main body 66 are fixed so as not to stand up. On the other hand, since it is a non-fixed free portion 68 between them, only the free portion 68 stands up to abut on the body side as shown by the arrow in FIG. In particular, when the root portion 65 is located on the back side of the interior body 200, the free portion 68 is erected so as to open outward in the width direction at the crotch and its vicinity, so the riser gathers 60 abuts around the legs. It comes to improve fit.

  Like the rising riser 60 in the illustrated example, the main body portion 66 is bent by a root side portion 60B extending to the center in the width direction and a tip side portion 60A folded back at the tip of the base side portion 60B and extending outward in the width direction. In the configuration, the tip end side portion 60A and the root side portion 60B are joined in the laid down state in the falling portion 67, and the root side portion 60B is joined to the top sheet 30 in the laid down state. For bonding of the opposing surfaces in the falling portion 67, at least one of hot melt adhesive by various coating methods and means by material welding such as heat sealing and ultrasonic sealing can be used. In this case, the joining of the root side portion 60B and the top sheet 30 and the joining of the distal end side portion 60A and the root side portion 60B may be performed by the same means or by different means. For example, it is one preferable mode that bonding of the root side portion 60B and the top sheet 30 is performed by a hot melt adhesive, and bonding of the tip side portion 60A and the root side portion 60B is performed by material welding.

The gathers non-woven fabric 62 is a flexible non-woven fabric excellent in softness, uniformity and concealability such as spunbond non-woven fabric (SS, SSS etc.), SMS non-woven fabric (SMS, SSMMS etc), melt-blown non-woven fabric etc. The treated one can be suitably used, and the fiber basis weight is preferably about 10 to 30 g / m ² . As the gather elastic member 63, a thread rubber or the like can be used. When spandex thread rubber is used, the thickness is preferably 470 to 1240 dtex, and more preferably 620 to 940 dtex. 150 to 350% is preferable and 200 to 300% of the elongation rate at the time of fixation is more preferable. The term "extension rate" means a value when the natural length is 100%. Further, as shown in the figure, the waterproof film 64 can be interposed between the gather non-woven fabric 62 folded in two, and in this case, the gather non-woven fabric 62 is partially omitted in the existing portion of the waterproof film 64. Although it is possible, in order to make the appearance and feel of the product look like a cloth, it is necessary that at least the outer surface from the base end to the tip of the gathers 60 be formed of gather non-woven fabric 62 as illustrated. is there.

  The number of gather elastic members 63 is preferably 2 to 6, and more preferably 3 to 5. The arrangement interval 60d is suitably 3 to 10 mm. With this configuration, the skin can be easily hit in the area where the gather elastic member 63 is disposed. The gather elastic member 63 may be disposed not only on the tip side but also on the root side.

  In the free portion 68 of the rising gather 60, hot melt adhesive, heat seal, and ultrasonic waves by various coating methods are used to bond the inner layer and the outer layer of the gather non-woven fabric 62 and fix the gather elastic member 63 sandwiched therebetween. At least one of fixing means by material welding such as a seal can be used. When the entire inner layer and outer layer of the gather non-woven fabric 62 are bonded together, the flexibility is impaired. Therefore, it is preferable that the portions other than the bonding portion of the gather elastic member 63 be not bonded or weakly bonded. In the illustrated example, the hot-melt adhesive is applied only to the outer peripheral surface of the gather elastic member 63 by an application means such as a comb gun or a sure wrap nozzle, and sandwiched between the inner layer and the outer layer of the gather non-woven fabric 62. Fixing the gather elastic member 63 to the inner layer and the outer layer of the gather non-woven fabric 62 and fixing the inner layer and the outer layer of the gather non-woven fabric 62 only with the hot melt adhesive applied to the outer peripheral surface of There is.

  Similarly, with regard to fixing of the waterproof film 64 and the gather non-woven fabric 62 incorporated in the rising gather 60 and fixing of the falling portion 67, hot melt adhesive by various coating methods, and material welding such as heat sealing and ultrasonic sealing. At least one of the means by can be used.

  Although the dimensions of the rising gather 60 in the illustrated example can be appropriately determined, in the case of an infant paper diaper, for example, as shown in FIG. 15, the rising height of the rising gather 60 (length in the width direction of the main body 66 in the unfolded state) ) W2 is preferably 15 to 60 mm, in particular 20 to 40 mm. In addition, it is preferable that the separation distance W1 between the folds positioned at the innermost side in the flatly folded state is 60 to 190 mm, particularly 70 to 140 mm, in the flat folded state so that the rising gather 60 is parallel to the surface of the top sheet 30.

(Absorbent element)
The absorbent element 50 has an absorbent body 56 and a packaging sheet 58 which wraps the whole of the absorbent body 56. The packaging sheet 58 can also be omitted.

(Absorber)
The absorber 56 can be formed by an assembly of fibers. As this fiber assembly, a filament assembly obtained by opening as needed a fiber (a fiber bundle) of synthetic fibers such as cellulose acetate in addition to those obtained by stacking short fibers such as cotton-like pulp and synthetic fibers Can also be used. The fiber weight may be, for example, about 100 to 300 g / m ² in the case of stacking cotton-like pulp or short fibers, and in the case of filament aggregate, for example, about 30 to 120 g / m ^2. Can. The fineness in the case of a synthetic fiber is, for example, 1 to 16 dtex, preferably 1 to 10 dtex, and more preferably 1 to 5 dtex. In the case of a filament assembly, the filaments may be non-crimped fibers, but are preferably crimped fibers. It is preferable that the superabsorbent polymer particles be dispersed and held in the absorbent body 56.

  The absorber 56 may have a rectangular shape, but as shown in FIG. 19 and the like, the absorber 56 itself has an hourglass shape having a narrow portion 56N narrower in width in the front-rear direction than in the front and rear sides. This is preferable because the fit around the legs of the raised gathers 60 is improved.

  Moreover, the dimensions of the absorber 56 can be appropriately determined as long as it extends to the front and rear, right and left of the urination port position, but preferably extends to the peripheral portion of the inner body 200 or its vicinity in the front and rear direction LD and the width direction WD. . The reference numeral 56X indicates the full width of the absorber 56.

(Superabsorbent polymer particles)
The absorbent body 56 may contain superabsorbent polymer particles in part or all thereof. The superabsorbent polymer particles include "powder" in addition to "particles". As the super-absorbent polymer particles 54, those used in this type of disposable diaper can be used as they are, for example, sieved by sieving (shake for 5 minutes) using a standard sieve of 500 μm (JIS Z8801-1: 2006) The proportion of particles remaining on the top is preferably 30% by weight or less, and the proportion of particles remaining on the sieve by sieving (shake for 5 minutes) using a standard sieve of 180 μm (JIS Z8801-1: 2006) is 60 weight% or more is desirable.

  The material of the superabsorbent polymer particles can be used without particular limitation, but those having a water absorption of 40 g / g or more are preferable. Examples of the superabsorbent polymer particles include starch-based, cellulose-based and synthetic polymer-based particles, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and crosslinked sodium carboxymethyl cellulose. A thing, an acrylic acid (salt) polymer, etc. can be used. The shape of the superabsorbent polymer particles is preferably in the form of commonly used powdery particles, but other shapes may also be used.

  As the superabsorbent polymer particles, those having a water absorption rate of 70 seconds or less, particularly 40 seconds or less are suitably used. If the water absorption rate is too slow, so-called reversion in which the liquid supplied into the absorber 56 returns out of the absorber 56 tends to occur.

  Further, as the superabsorbent polymer particles, those having a gel strength of 1000 Pa or more are suitably used. Thereby, even in the case of the bulky absorber 56, it is possible to effectively suppress the sticky feeling after liquid absorption.

The basis weight of the superabsorbent polymer particles can be appropriately determined in accordance with the absorption required for the application of the absorber 56. Therefore, although it can not generally say, it can be 50-350 g / m < ² >. If the basis weight of the polymer is less than 50 g / m ² , it will be difficult to secure the absorption amount. When it exceeds 350 g / m ² , the effect is saturated.

  If necessary, the superabsorbent polymer particles can adjust the spray density or the spray amount in the planar direction of the absorber 56. For example, it is possible to increase the spray amount of the excretory site of the fluid compared to other sites. When considering gender differences, males can increase the spray density (amount) on the front side, and females can increase the spray density (amount) in the center. In addition, it is possible to provide a portion where no polymer is present locally (for example, in the form of a spot) in the planar direction of the absorber 56.

(Packaging sheet)
When the packaging sheet 58 is used, tissue paper, in particular, crepe paper, non-woven fabric, polylaminated non-woven fabric, a sheet with small holes, or the like can be used as the material. However, it is desirable that it is a sheet from which the superabsorbent polymer particles can not escape. When non-woven fabric is used instead of crepe paper, hydrophilic SMS non-woven fabric (SMS, SSMMS, etc.) is particularly preferable, and polypropylene, polyethylene / polypropylene composite material, etc. can be used as its material. The coating weight is preferably 5 to 40 g / m ² , particularly 10 to 30 g / m ² .

  The packaging form of the packaging sheet 58 can be determined as appropriate, but from the viewpoint of ease of manufacture and prevention of leakage of superabsorbent polymer particles from the front and rear edges, a cylinder is used to surround the front and back and both sides of the absorber 56. It is preferable that the front and rear edges be wound around the front and rear edges of the absorbent body 56, and the overlapping portions and the overlapping portions of the front and rear protruding portions be joined by joining means such as hot melt adhesive and material welding.

(Exterior body)
The exterior bodies 12F and 12B are not particularly limited, such as being continuous and continuous through the crotch from the front body F to the back body B. In the illustrated example, at least the waist portion of the front body F is configured And a rectangular rear side exterior body 12B which is a portion constituting at least the waist portion of the back body B, and the front side exterior body 12F and the rear side exterior body 12B are on the crotch side It is not continuous, and is separated in the longitudinal direction LD. The separation distance 12d can be, for example, about 150 to 250 mm.

  The exterior bodies 12F, 12B have a waist portion which is a range in the front-rear direction corresponding to the waist region T. Further, in the present embodiment, the dimension of the rear exterior body 12B in the front-rear direction is longer than that of the front exterior body 12F, and the front exterior body 12F does not have a portion corresponding to the intermediate region L. The side exterior body 12B has a buttocks cover portion C extending from the waist area T to the intermediate area L side. Although not shown in the drawings, the front exterior body 12F may be provided with a weir cover that extends from the waist area T to the intermediate area L side.

  As shown in FIG. 14, FIG. 16 and FIG. 17, the outer packaging layers 12S and 12H of the outer casings 12F and 12B are located on the outside and the inside of the elastic members 15 to 19 described later. And are joined by joining means such as welding. The sheet material forming the outer sheet layer 12S and the sheet material forming the inner sheet layer 12H may be a common single sheet material as in the illustrated example, or may be individual sheet materials. That is, in the case of the former, the inner sheet layer is formed by the inner portion and the outer portion of a sheet of sheet material folded back at the edge of the waist opening WO (which may be the edge on the crotch side) 12H and the outer sheet layer 12S are respectively formed.

The sheet material used for the outer sheet layer 12S and the inner sheet layer 12H can be used without particular limitation, but a non-woven fabric is preferable. For example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, Non-woven fabrics made of mixed fibers, composite fibers, etc., of which the species or more are used can be used. Furthermore, the non-woven fabric may be produced by any processing. Examples of the processing method include known methods such as spun lace method, spun bond method, thermal bond method, melt blown method, needle punch method, air through method, point bond method and the like. When using a nonwoven fabric, it is preferable to make the fabric weight into about 10-30 g / m < ² >.

(Stretch area, non-stretch area)
Elastic members 15 to 19 are provided between the outer sheet layer 12S and the inner sheet layer 12H in the outer coverings 12F and 12B in order to enhance the fit of the wearer around the waist, and the width direction is accompanied by the expansion and contraction of the elastic members. A stretchable region A2 which is elastically stretchable in the WD is formed. In this stretchable area A2, in the state of natural length, the outer sheet layer 12S and the inner sheet layer 12H are shrunk as the elastic member contracts to form wrinkles or wrinkles, and when the elastic sheet extends in the longitudinal direction, the outer side The sheet layer 12S and the inner sheet layer 12H can be stretched to a predetermined stretch rate at which the sheet layer 12S and the inner sheet layer 12H stretch. As the elastic members 15 to 19, well-known elastic members such as a belt-like, net-like, film-like or the like can be used without particular limitation, in addition to elongated elastic members such as thread rubber (example shown). The elastic members 15 to 19 may use synthetic rubber or natural rubber.

  For bonding of the outer sheet layer 12S and the inner sheet layer 12H in the outer package 12F, 12B and fixing of the elastic members 15 to 19 sandwiched therebetween, hot melt adhesive and heat seal or ultrasonic seal by various application methods At least one of fixing means by material welding, such as, can be used. It is preferable that the portions other than the bonding portions of the elastic members 15 to 19 be not bonded or be weakly bonded because the flexibility of the outer coverings 12F and 12B is firmly fixed if the entire surface is firmly fixed. In the illustrated example, a hot melt adhesive is applied only to the outer peripheral surface of the elastic members 15 to 19 by an application unit such as a comb gun or a sure wrap nozzle, and the elastic members 15 to 19 are held by being sandwiched between both sheet layers 12S and 12H. The elastic members 15 to 19 are fixed to both the sheet layers 12S and 12H and fixed between the two sheet layers 12S and 12H only with the hot melt adhesive applied to the outer peripheral surface of the sheet. The elastic members 15 to 19 can be fixed to the outer sheet layer 12S and the inner sheet layer 12H only at both ends in the expansion and contraction direction in the expansion and contraction region.

The elastic members 15 to 19 in the illustrated example will be described in more detail. A plurality of elastic members 15 to 19 are provided between the outer sheet layer 12S and the inner sheet layer 12H at the waist portion W of the outer package 12F, 12B so as to be continuous across the entire width direction WD. The waist elastic members 17 are attached at intervals in the front-rear direction. In addition, one or more of the waist elastic members 17 disposed in the area adjacent to the lower waist portion U may overlap with the interior body 200, or the width direction center overlapping the interior body 200. It may be provided on both sides in the width direction except for the part. The waist elastic member 17 has a thickness of 155 to 1880 dtex, particularly about 470 to 1240 dtex (in the case of a synthetic rubber. In the case of a natural rubber, a cross-sectional area of 0.05 to 1.5 mm ² , particularly 0.1 to 1. It is preferable to provide about 3 to 22 yarn rubbers of about 0 mm ² ) at intervals of 4 to 12 mm, whereby the elongation of the waist portion W in the width direction WD is about 150 to 400%, particularly about 220 to 320%. Preferably there.

  Further, between the outer sheet layer 12S and the inner sheet layer 12H in the lower waist portion U of the outer coverings 12F, 12B, a plurality of lower waist elastic members 15, 19 made of elongated elastic members are spaced in the front-rear direction It is attached empty.

The waist lower portion elastic members 15 and 19 have a thickness of 155 to 1880 dtex, particularly about 470 to 1240 dtex (in the case of a synthetic rubber. In the case of natural rubber, a cross-sectional area of 0.05 to 1.5 mm ² , particularly 0.1 to 10). It is preferable to provide 5 to 30 thread rubbers of about 1.0 mm ² ) at intervals of 1 to 15 mm, particularly 3 to 8 mm, and the extension ratio of the lower waist portion U in the width direction WD by this is 200 to 350% In particular, about 240 to 300% is preferable.

  In addition, a cover elastic member 16 made of a slender elastic member is attached between the outer sheet layer 12S and the inner sheet layer 12H in the buttocks cover C of the rear exterior body 12B. The buttocks cover portion C is contracted toward the center in the width direction WD by the cover portion elastic member 16.

The cover elastic member 16 has a thickness of 155 to 1880 dtex, particularly about 470 to 1240 dtex (in the case of a synthetic rubber. In the case of a natural rubber, a cross-sectional area of 0.05 to 1.5 mm ² , particularly 0.1 to 1.0 mm) ^It is preferable to provide a rubber thread of about ² ), and the elongation in the width direction WD of the buttocks cover part C by this is preferably 150 to 400%, particularly 250 to 350%. The number of cover portion elastic members 16 can be appropriately determined, 3 to 10 are preferable, 3 to 5 are more preferable, and 3 or 4 are particularly preferable.

  On the other hand, in the case of providing the groin cover portion on the front exterior body 12F, the cover portion elastic member can be provided in the same manner as the collar portion cover portion C.

  In the case where the elastic members 15, 16 and 19 are provided in the longitudinal direction range having the absorber 56 as in the lower waist portion U and the buttocks cover portion C of the illustrated example, the width direction of the absorber 56 In order to prevent the shrinkage of the WD, the widthwise middle (preferably including the whole of the inner and outer joints 201 and 202) including a part or all of the part overlapping in the width direction WD with the absorber 56 is taken as the non-stretchable area A1. , The width direction both sides are made into expansion-contraction area | region A2. The waist portion W is preferably set as the stretchable region A2 over the entire width direction WD, but the non-stretchable region A1 may be provided in the middle in the width direction as in the waist lower portion U.

  Such elastic regions A2 and non-elastic regions A1 supply elastic members 15 to 17 and 19 between the inner sheet layer 12H and the outer sheet layer 12S, and the elastic members 15, 16 and 19 can expand and contract. The elastic members 15, 16 and 19 are pressed and fixed in the non-stretchable area A1 without fixing in the area to be the non-stretching area A1 and fixed in the area to be the non-stretching area A1. It can be constructed by cutting at one place in the middle in the width direction by heating, or finely cutting at many places, and leaving the stretchability in the stretchable area A2 while killing the stretchability in the non-stretchable area A1. In the case of the former, as shown in FIG. 16, in the non-stretchable area A1, in a state where the cutting remainder continuous from the elastic members 15, 16, 19 in the stretchable area A2 is contracted alone to the natural length as the unnecessary elastic member 18, Although it will remain between the outer sheet layer 12S and the inner sheet layer 12H, in the latter case, although not shown, the cutting remainders continuous from the elastic members 15, 16 and 19 of the elastic region A2 and the elastic members 15 of both elastic regions A2 , 16 and 19, the cut pieces of the elastic member are left between the outer sheet layer 12S and the inner sheet layer 12H in a state of being shrunk to the natural length alone as the unnecessary elastic member.

(Cover non-woven fabric)
In the case of the external two-part type pants-type disposable diaper, the inner body 200 is exposed between the front outer body 12F and the rear outer body 12B, so that the liquid impermeable sheet 11 is not exposed on the back surface of the inner body 200. The cover nonwoven fabric 13 is preferably provided to cover the back surface of the inner body 200 from between the front outer body 12F and the inner body 200 to between the rear outer body 12B and the inner body 200.

The non-woven fabric used for the cover non-woven fabric 13 is not particularly limited depending on the type of fibers and the method of bonding (interlacing) fibers, for example, the same materials as those of the exterior bodies 12F and 12B can be appropriately selected. It is preferable to use an air through non-woven fabric, in which case the fabric weight is preferably 20 to 40 g / m ² and the thickness is 0.3 to 1.0 mm. The cover non-woven fabric 13 may be a non-porous non-woven fabric having no holes penetrating through the front and back or a perforated non-woven fabric having a large number of holes penetrating the front and back spaced apart.

  The front-rear direction range of the cover non-woven fabric 13 is not particularly limited, and may extend in the front-rear direction LD over the entire front end to the rear end of the inner body 200 as shown in FIGS. As shown, it extends in the front-rear direction LD from the front-rear direction middle position of the region where the front exterior body 12F and the interior body 200 overlap to the front-rear direction middle position of the region where the rear side exterior body 12B and the interior body 200 overlap. It is also good. In the case of the example shown in FIG. 19, the longitudinal length 13y of the overlapping portion of the cover nonwoven fabric 13 and the front exterior body 12F, and the longitudinal length 13y of the overlapping portion of the cover nonwoven fabric 13 and the rear exterior body 12B are Although it can determine suitably, it can each be about 20-40 mm in the case of usual.

  The width direction range of the cover nonwoven fabric 13 is a range in which the back surface exposed portion of the liquid impermeable sheet 11 can be hidden. Therefore, in the illustrated example, since the liquid impermeable sheet 11 is exposed between the proximal ends of the left and right rising gathers 60, the rear end of the other rising gathers 60 from the back side of the base end of at least one of the rising gathers 60. The cover nonwoven fabric 13 is provided so that the width direction range to the back side of a part may be covered. As a result, the liquid impermeable sheet 11 can be covered by the cover nonwoven fabric 13 and the gather nonwoven fabric 62 of the gather 60. In addition, the cover non-woven fabric 13 may be configured so that the widthwise opposite end portions of the cover non-woven fabric 13 do not stand up and cover the back side of the base end portion of the gather 60 but the gather non-woven fabric 62 covers the back side widthwise opposite end It is possible to conceal the liquid impermeable sheet 11 with the non-woven fabric 62. In this case, since both sides of the cover non-woven fabric 13 are covered by the gather non-woven fabric 62, there is an advantage that both sides of the cover non-woven fabric 13 are less likely to be peeled off from the liquid impermeable sheet 11.

  The inner surface and the outer surface of the cover non-woven fabric 13 can be bonded to the opposite surface via a hot melt adhesive, respectively. The fixing area of the cover nonwoven fabric 13 is not only the whole of the cover nonwoven fabric 13 in the front-rear direction and the whole of the width direction, but also a part thereof may be unfixed. For example, if both ends in the width direction of the cover non-woven fabric 13 are not fixed, it becomes difficult to be affected even if the side of the absorbent body 56 is slightly shrunk under the influence of the rising gather 60, and wrinkles or folds are formed on the cover non-woven fabric 13 It has the advantage of being hard to In this case, the width of the non-fixed portions at both widthwise end portions of the cover nonwoven fabric 13 may be appropriately determined, but may be, for example, 3 to 10 mm, preferably 5 to 8 mm.

(Inner and outer joint)
Fixing of the interior body 200 to the exterior bodies 12F, 12B can be performed by a bonding method such as heat sealing, ultrasonic sealing, or the like by material welding, or a hot melt adhesive. In the illustrated example, the inner surface of the outer package 12F, 12B is applied to the back surface of the inner body 200, that is, the back surface of the liquid impermeable sheet 11 and the root portion 65 of the rising gather 60 in this case It is fixed. The inner and outer joint portions 201 and 202 for fixing the inner body 200 and the outer bodies 12F and 12B can be provided substantially in the entire overlapping region, as shown in FIG. It can also be provided in parts other than parts.

(IC tag, sensor carrier)
An IC tag 120 is provided in the present pants-type disposable diaper for use in the above-described excretion detection system. The IC tag 120 corresponds to the IC tags 120a to 120c of the above-described excretion detection system, and the details thereof are as described above.

  Characteristically, the present pants type disposable diaper includes the sensor carrier 170 having the built-in portion 171 located between the top sheet 30 and the liquid impermeable sheet 11, and the IC tag 120 is the sensor carrier. It is provided in a built-in portion 171 of 170. In order to make the shielding of the radio wave of the IC tag 120 more reliable and to prevent a sense of incongruity at the time of mounting, the sensor carrier and the IC tag are liquid impervious to the back surface of the absorbing element 50 as illustrated. Although it is preferable to arrange | position between the sexing sheets 11, it is not limited to this. Therefore, although not shown, the sensor carrier 170 and the IC tag 120 may be provided between the top sheet 30 and the intermediate sheet 40, between the intermediate sheet 40 and the absorbent element 50, and between the absorber 56 and the packaging sheet 58. A plurality of absorbers 56 or absorption elements 50 may be stacked, and the sensor carrier 170 and the IC tag 120 may be disposed between the layers.

  Furthermore, as shown in FIG. 23, the sensor carrier 170 has a lead-out portion 172 extending from the portion where the IC tag 120 is provided, and as shown in FIG. 20, the lead-out portion 172 can be pulled out of the diaper. There is. Therefore, the user can move the sensor carrier 170 together with the IC tag 120 by pulling out the drawer portion 172, and can adjust the position of the IC tag 120, that is, the excretion detection position. Although the position adjustment range of the IC tag 120 is not particularly limited, it can be adjusted stepwise or steplessly at different points in the longitudinal direction LD such as the ventral side, crotch portion, dorsal side, etc. as shown in FIG. It is desirable to have.

  The extraction port 173 for extracting the extraction portion 172 to the outside of the diaper may be provided anywhere as long as it communicates between the top sheet 30 and the liquid impermeable sheet 11, but outside the area having the absorber 56 It is desirable to be provided. Further, in this case, as shown in FIG. 24, the top sheet 30 or the like may be cut to form the outlet 173, but as in the front and rear end portions of the interior body 200 in the example shown in FIGS. In the case where the edges of the members (in the illustrated example, the packaging sheet 58 and the liquid impermeable sheet 11) adjacent to the upper and lower sides of the sensor carrier 170 are exposed to the outside, a non-adhesion portion is provided at this edge and the outlet port 173 is formed. May be formed. The example shown in FIG. 24 is an application example to a tape type disposable diaper attached by connecting the connecting tapes 14 provided on both sides of the back body B to the outer surface of the front body F.

  Further, members adjacent to the upper and lower sides of the sensor carrier 170 (in the illustrated example, the packaging sheet 58 and the liquid impermeable sheet 11) are not joined at the passing portion of the sensor carrier 170 and the IC tag 120. The passage continues to the outlet 173. In particular, when the sensor carrier 170 is interposed between the absorber 56 and the liquid impermeable sheet 11, as shown in FIG. 21 and FIG. When the movement space 174 extends in the front-rear direction LD, movement of the sensor carrier 170 is facilitated, the excrement fluid is easily supplied to the IC tag 120, and detection sensitivity is improved, which is preferable. As shown in FIG. 21, such a groove-like moving space 174 is provided with a slit 56S penetrating in the thickness direction in the absorber 56, and a portion of the packaging sheet 58 located on the back side of the absorber 56 is in the slit 56S. It can be formed by pressing up and bonding the portion of the packaging sheet 58 located on the front side of the absorber 56 with a hot melt adhesive or the like. In addition, as shown in FIG. 22, such a groove-like moving space 174 can also be provided by pressing from the back side of the absorbent element 50 by embossing to form a recess 50U. The shape and size of the movement space 174 are not particularly limited as long as the sensor carrier 170 and the IC tag 120 can pass through, but in the normal case, the cross-sectional shape is preferably substantially rectangular in horizontal length, and the movement space Preferably, the same cross-sectional shape is provided over the entire length of 174 (for example, the entire length of the absorber 56). As specific dimensions, the dimension in the width direction of the movement space 174 can be about 5 to 20 mm, and the dimension in the thickness direction of the movement space 174 can be about 4 to 10 mm.

  The drawing direction of the drawing portion 172, that is, the moving direction of the IC tag 120 may be appropriately determined in consideration of the adjustment range of the excretion detection position. As described above, since it is desirable that the IC tag 120 can be adjusted to a plurality of different places in the longitudinal direction LD such as the ventral side, the crotch, the dorsal side, etc., the drawing direction is the longitudinal direction LD It is preferable to do.

  The lead-out portion 172 is easy to manufacture when the whole is the built-in portion 171 as shown in FIGS. 13 and 17. In particular, when the drawing direction of the drawing portion 172 is the longitudinal direction LD, by making the longitudinal dimension of the sensor carrier 170 the same as the longitudinal direction dimension of the interior body 200, the portion to be the interior body 200 repeats in the longitudinal direction LD. After producing the continuous body, it is easy to adopt a general production method of cutting into individual inner bodies 200. However, in this case, since the entire lead-out portion 172 is the built-in portion 171, there is a problem that it is difficult to pick the lead-out portion 172. Therefore, as in the example shown in FIG. 24, the end in the pulling direction of the drawer 172 (when the code printing unit 112 described later is included as in the illustrated example, the entire code printing unit 112) is exposed to the outside of the diaper in advance. Because it is easy to pick when pulling out, it is preferable.

  The dimension 170 L in the pulling direction of the sensor carrier 170 can be determined in consideration of the dimension of the IC tag 120 and the dimension of the leading portion 172. Moreover, the dimension of the drawer direction of the drawer part 172 can be suitably determined if it is more than the adjustment range of the excretion detection position. When the sensor carrier 170 is moved in the front-rear direction LD as in the illustrated example, the dimension 170L in the front-rear direction of the sensor carrier 170 is approximately 2/3 to 1 times the entire length of the inner body 200 as shown in FIG. As in the example, the IC tag 120 can be moved from the buttocks to the abdomen.

  The material and shape of the sensor carrier 170 are not particularly limited. The material of the sensor carrier 170 is made of a plastic film, a non-woven fabric, a woven fabric or the like, and is preferably flexible and has a low stretchability and a certain degree of tensile strength which does not break when pulled out. Further, the shape of the sensor carrier 170 is preferably in the form of a band having an equal width in which the longitudinal direction is the drawing direction, in consideration of the drawing resistance, the ease of manufacture, and the like.

The width 170 W (the dimension in the direction orthogonal to the pull-out direction) of the sensor carrier 170 is not particularly limited, but can be about 5 to 20 mm in the normal case. The tensile strength of the sensor carrier 170 is preferably 15 N / 50 mm or more. Therefore, as the non-woven fabric used for the sensor carrier 170, for example, one having a basis weight of 10 to 60 g / m ² can be used. On the other hand, as the film used for the sensor carrier 170, for example, one having a thickness of 30 to 80 μm can be used.

  The lead-out portion 172 of the sensor carrier 170 preferably has a perforation 175 for separating a part or all of the portion drawn to the outside of the disposable diaper. By having such perforations 175, part or all of the part pulled out to the outside of the disposable diaper can be cut off at the time of use, and unnecessary parts are less likely to be in the way. The perforations 175 may be provided at one place, but it is more preferable to provide a plurality of perforations at intervals of about 2 to 5 cm in the drawing direction.

  The IC tag 120 can be provided on the sensor carrier 170 by fixing it on the built-in portion 171 of the sensor carrier 170 with an adhesive or the like, or using the sensor carrier 170 as a base of the IC tag 120.

  Although the dimensions of the IC tag 120 are not particularly limited, for example, those having a width of about 10 to 20 mm, a length of about 35 to 80 mm, and a thickness of about 60 to 1000 μm can be used.

(Code printing unit)
When the present pants type disposable diaper is used as the disposable diapers 110a to 110c and 210a to 210c used in the first example and the third example of the excretion detection system described above, one-dimensional or two-dimensional including specific information of the IC tag 120 It is desirable to have the code printing parts 112-114 in which the code was printed. The one-dimensional or two-dimensional code of the code printing units 112 to 114 is optically readable.

  As a two-dimensional code, a matrix type in which square or circular modules (unit cells) are arranged in a two-dimensional direction, for example, a QR code (registered trademark) or the like, and a linear one-dimensional array of modules consisting of bars and spaces There is a stack type in which a plurality of original codes are arranged, but any may be used, and the type of code is not particularly limited. It is also possible to use one-dimensional code instead of or in addition to two-dimensional code. The dimension of the module arrangement direction (one direction in the case of a one-dimensional code, two orthogonal directions in the case of a two-dimensional code) of a one-dimensional or two-dimensional code can be determined appropriately, It is preferable that it is 0.25 mm. These one-dimensional or two-dimensional codes additionally include product information (specification, price, expiration date, handling instruction, production lot number, etc.), goods or products, as long as the one-dimensional code or the two-dimensional code includes specific information of the IC tag contained in the diaper. Other information may be included, such as advertisement information (advertisement message itself, URL of advertisement website, etc.) related to other products, or URL information for music playback, video playback, game execution and the like.

  The code printing units 112 to 114 may be provided anywhere on the disposable diaper as long as the user can read them using the reading device 140, but providing them in the drawer unit 172 of the sensor carrier 170 is one preferred embodiment . The lead-out portion 172 of the sensor carrier 170 is a portion that can be exposed to the outside of the diaper, and the code reading of the code printing units 112 to 114 is easy.

  The code printing units 112 to 114 may be printed directly on the sensor carrier 170, but are printed on the adhesive seal 176 peelably attached to the lead-out portion 172 of the sensor carrier 170 as shown in FIG. In addition, it is preferable because the code printing units 112 to 114 can be peeled off, discarded, or attached to another object. For example, in a hospital or the like, the adhesive seal 176 having the code printing portions 112 to 114 peeled off from the disposable diaper is attached to a recording sheet such as a medical chart, and the user can easily record the association between the IC tag 120 it can.

  The code printing units 112 to 114 may be provided at one place, but can be provided at a plurality of places. In particular, as shown in FIG. 13, FIG. 17, FIG. 20, and FIG. 23, a plurality of code printing units 112 to 114 are provided at intervals in the drawing direction of the drawing unit 172. The one-dimensional or two-dimensional code preferably includes IC tag installation position information determined corresponding to the separation distance between each of the code printing units 112 to 114 and the IC tag 120. In this case, by selecting the code printing units 112 to 114 to be read according to the installation position of the IC tag 120 from the plurality of code printing units 112 to 114, the IC tag 120 and the absorbent article or the absorbent article Not only the association with the wearer but also the association between the installation position after adjustment of the IC tag 120 and the wearer can be easily performed.

  In particular, as described above, when the code printing units 112 to 114 are provided in the adhesive seal 176, only the code printing units 112 to 114 used for reading are peeled off, and conversely, the code printing units 112 to 114 not used for reading By peeling off 114, it is possible to prevent a reading error or the like.

  When the perforations 175 are provided in the lead-out portion 172 as described above, the perforations 175 are provided on the IC tag 120 side of each of the code printing units 112 to 114 to separate the code printing units 112 to 114 used for reading. Or, conversely, the code printing units 112 to 114 not used for reading can be separated, and reading errors and the like can be prevented.

  The IC tag installation position information can be a distance from a reference position such as the extraction port 173 or can be a rough body part such as the dorsal side, the ventral side, or the crotch part. That is, when the position of the IC tag 120 is adjusted by pulling out the lead-out portion 172 of the sensor carrier 170, the one-dimensional or two-dimensional code of the code printing portion 112 to 114 closest to the reference position such as the lead-out port 173 is the IC tag The position of each code printing unit 112 to 114 in the sensor carrier 170 and the one-dimensional or two-dimensional code printed thereon can be defined so as to include information such as the distance and the name of the body part for the position of 120. For example, in the example of FIG. 20, the code of the code printing unit 112 is IC tag installation position information of "back side", the code of the code printing unit 113 is IC tag installation position information of "crotch", and the code of the code printing unit 114. Can include the IC tag installation position information "ventral side", respectively. Thus, after the user pulls out the lead-out portion 172 of the sensor carrier 170, the unique number of the built-in IC tag 120 can be read only by reading the code printing portions 112 to 114 closest to the reference position such as the lead-out port 173. And the like, as well as the installation position information of the IC tag 120 can be read.

  In addition, as shown in FIG. 25, the first identification mark 177 representing the IC tag installation position is drawn on the liquid-impervious sheet 11 or a member on the back side of the liquid-impermeable sheet 11 (in the illustrated example, the exterior bodies 12F and 12B) A plurality of the first identification marks 177 are visible from the back side of the disposable diaper, while the lead-out portion 172 is the same as or corresponds to the first identification marks 177. A plurality of second identification indicators 178 are provided at intervals in the withdrawal direction, and when the IC tag 120 is located at each IC tag installation position displayed by the first identification indicator 177, the extraction port in the extraction portion 172 Preferably, a second identification mark 178 identical or corresponding to the first identification mark 177 is exposed in a portion projecting from the 173. Thereby, by looking at the second identification display 178, it can be known that the IC tag 120 is located at or near the position specified by the same or corresponding first identification display 177, and the disposable diaper The position of the IC tag 120 located inside can be easily grasped. Moreover, it is also preferable that the second identification display 178 is provided at the same position as or corresponding to each of the code printing units 112 to 114. This makes it possible to visually grasp the correspondence between the IC tag installation position in the disposable diaper and the code printing units 112 to 114 to be read, and even when there are a plurality of code printing units 112 to 114, reading of the code is It becomes easy. The first identification display 177 provided on the disposable diaper side and the second identification display 178 provided on the sensor carrier 170 are not particularly limited as long as the correspondence with each other is visually understood, and the same characters or the The same number can be used, or the same color or the same figure (example shown) can be added together with or instead of this.

  On the other hand, one IC tag 120 is provided in one disposable diaper, and a plurality of IC tags 120 having different specific information are arranged (or not spaced) in the longitudinal direction LD in one disposable diaper. Alternatively, in place of or in addition to this, they may be arranged at intervals (or not) in the width direction WD. In this case, in addition to the detection of the presence or absence of excretion, the above-mentioned excretion detection system makes it possible to detect the degree of absorption and the absorption position. Moreover, in this case, in addition to providing all of the plurality of IC tags 120 on the sensor carrier 170, some of the IC tags 120 can be attached to non-moving members other than the sensor carrier 170.

<Explanation of terms in the specification>
The following terms in the specification have the following meanings unless otherwise indicated in the specification.

  "Longitudinal (longitudinal) direction" means a direction connecting the ventral side (front side) and back side (rear side), and "width direction" means a direction (horizontal direction) orthogonal to the longitudinal direction.

  ・ "Front side" means one closer to the wearer's skin when wearing a pants-type disposable diaper, and "back side" means one farther from the wearer's skin when wearing a pants-type disposable diaper .

  ・ "Surface" means the side closer to the skin of the wearer when wearing the pants-type disposable diaper of the member, and "back side" means the skin of the wearer when wearing the pants-type disposable diaper It means the far side.

  "Stretch rate" means the value when natural length is 100%.

  "Gel strength" is measured as follows. Artificial urine (urea: 2 wt%, sodium chloride: 0.8 wt%, calcium chloride dihydrate: 0.03 wt%, magnesium sulfate heptahydrate: 0.08 wt%, and ion-exchanged water: 97.09 wt% To 49.0 g of the mixture), 1.0 g of the superabsorbent polymer is added, and the mixture is stirred by a stirrer. The formed gel is left in a constant temperature and humidity chamber at 40 ° C. × 60% RH for 3 hours and then returned to normal temperature, and the gel strength is measured with a curd meter (manufactured by I. techno Engineering: Curdmeter-MAX ME-500).

  ・ "Age" is measured as follows. After the sample or test piece is predried, it is left in a test room or apparatus under standard conditions (test place: temperature 23 ± 1 ° C., relative humidity 50 ± 2%) to be in a constant weight state. Pre-drying refers to bringing a sample or test piece to a constant weight in an environment at a temperature of 100 ° C. In addition, it is not necessary to perform preliminary drying about the fiber whose official moisture percentage is 0.0%. From a test piece in a constant weight state, using a template for sampling (100 mm × 100 mm), cut out a sample of 100 mm × 100 mm in size. The weight of the sample is measured, multiplied by 10 to calculate the weight per square meter, and taken as the basis weight.

- "thickness" is used automatic thickness measuring instrument (KES-G5 Handy Compression measurement program), load: 0.098 N / cm ^2, and the pressure area: automatically measured under the conditions of 2 cm ^2.

  The amount of water absorption is measured according to JIS K 7223-1996 “Test method of water absorption of highly water-absorbent resin”.

  -Water absorption rate is defined as "time to end point" when JIS K 7224-1996 "Water absorption rate test method for super absorbent polymer" using 2 g of highly absorbent polymer and 50 g of physiological saline. .

  "Expanded state" means a flat state without contraction or slack.

  -Unless otherwise indicated, the dimension of each part means the dimension in the unfolded state, not the natural length state.

  ・ If there is no description about the environmental conditions in the test or measurement, the test or measurement shall be performed in the test room or equipment under the standard condition (test place: temperature 23 ± 1 ° C, relative humidity 50 ± 2%) Do.

  The present invention is applicable to general disposable diapers such as the above-mentioned example other than the pants-type disposable diaper and the tape-type disposable diaper, and the pad-type disposable diaper, and other absorbent articles such as sanitary napkins It goes without saying that it can be applied to

  11: Liquid impermeable sheet, 12A: side seal portion, 12B: rear side exterior body, 12E: waist extension portion, 12F: front side exterior body, 12H: inner sheet layer, 12S: outer sheet layer, 13: cover non-woven fabric , 16: cover part elastic member, 17: waist part elastic member, 18: unnecessary elastic member, 200: interior body, 201, 202: inside and outside joint part, 30: top sheet, 40: intermediate sheet, 50: absorption element, 56 ... Absorbent body, 58 ... Packaging sheet, 60 ... Rising gather, 60 A ... Tip side portion, 60 B ... Root side portion, 62 ... Gathered nonwoven fabric, 67 ... Falling portion, 68 ... Free portion, A1 ... Non-stretching area, A2 ... Stretching Region, C: buttock cover, L: middle region, LD: longitudinal direction, T: waist region, U: lower waist portion, W: waist portion, WD: width direction, WO: waist opening LO: leg opening 110a to 110c 210a to 210c disposable diaper 111a to 111c two-dimensional code 112 to 114 code printed portion 120, 120a to 120c IC tag 121a to 121c antenna portion 122a to 122c: IC chip, 140: reader, 141a to 141c: antenna unit, 142: communication unit, 143: control unit, 150: smartphone, 151: camera, 152: communication unit, 153: speaker, 154: touch panel liquid crystal screen , 155: control unit, 160: application, 161: initial screen, 170: sensor carrier, 171: internal part, 172: drawer, 173: drawer, 174: movement space, 175: perforation, 176: adhesive seal, 177 ... 1st identification display, 178 ... 2nd identification table , 240a to 240c ... reader with notification function, 241a to 241c ... antenna unit, 242a to 242c ... speaker, 243a to 243c ... LED lighting unit, 1611 ... disposable diaper wearer registration button, 1612 ... registrant management button, 1613 ... Setting change button, 1614: detection start / end button, RW1: first electric wave, RW2: second electric wave, RW3: third electric wave.

Claims (7)

An absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable sheet, and an absorbent provided therebetween.
A sensor carrier having a built-in portion located between the top sheet and the liquid impermeable sheet;
The sensor carrier has a passive IC tag provided in the built-in portion, and a lead-out portion extending from the portion provided with the IC tag,
The IC tag transmits radio waves including specific information when receiving radio waves from the outside, and at least one of the received radio waves and the outgoing radio waves can be shielded by surrounding excrement liquid,
The drawing portion can be drawn out of the absorbent article.
An absorbent article characterized by the above. The sensor carrier is interposed between the absorber and the liquid impermeable sheet.
The sensor carrier is drawn out in the front-rear direction, and the shape of the sensor carrier is a strip extending in the front-rear direction,
A groove-like moving space recessed upward is extended in the front-rear direction directly above the sensor carrier.
The absorbent article according to claim 1. The lead-out portion has a perforation for separating a part or all of the portion drawn out of the absorbent article.
The absorbent article according to claim 1 or 2. The drawing unit includes a code printing unit on which a one-dimensional or two-dimensional code corresponding to the unique information of the IC tag is printed.
It is possible to optically read the one-dimensional or two-dimensional code of the code printing unit,
The absorbent article according to any one of claims 1 to 3. The code printing unit is provided on a pressure-sensitive adhesive seal that is detachably attached to the lead-out unit.
The absorbent article according to claim 4. A plurality of the code printing units are provided at intervals in the drawing direction of the drawing unit,
The one-dimensional or two-dimensional code of each code printing unit includes IC tag installation position information determined corresponding to the separation distance between each code printing unit and the IC tag,
The absorbent article according to claim 4 or 5. A plurality of first identification marks representing the IC tag installation position are provided on the liquid impermeable sheet or a member on the back side of the liquid impermeable sheet at intervals in the drawing direction of the drawing portion,
The first identification mark is visible from the back side of the absorbent article,
A plurality of second identification displays that are the same as or correspond to the first identification display are provided in the drawing portion at intervals in the drawing direction,
When the IC tag is located at each IC tag installation position displayed by the first identification display, a portion of the extraction portion that protrudes from the outlet is the same as or corresponding to the first identification display. Identification display is exposed,
The absorbent article according to any one of claims 1 to 6.

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