Flow deflector layer structure, attitude sensor, corresponding attitude monitoring flow guide unit and absorptive article

Abstract

The utility model discloses a flow deflector layer structure, an attitude sensor, a corresponding attitude monitoring flow guide unit and an absorbent article. The flow deflector layer structure comprises a substrate layer and a flow guide channel on the substrate layer, and a sensor accommodating cavity is formed in the flow guide channel; the sensor containing cavity can be used for installing an attitude sensor. The posture monitoring flow guide unit formed in a matched mode still guarantees the traditional flow guide function of the absorptive article, urine and other liquid can be absorbed by the water absorption core through the flow guide channel, the sensor is arranged by fully utilizing the space occupied by the flow guide channel, and the wearing comfort is improved; and the sensing areas can be reasonably and widely arranged on the center side, so that the monitoring precision is improved. And the wearing comfort and the monitoring performance are improved. By means of the posture monitoring flow guide unit, a combined structure with the posture sensor coupled with the flow guide area can be formed in the corresponding flow guide layer, the absorption core body or the absorptive article, and the problem that the intelligent monitoring absorptive article cannot give consideration to wearing comfort and sensing is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, and more specifically, to a guide sheet layer structure, a posture sensor and a corresponding posture monitoring guide unit, and an absorbent article. Background Art

[0002] Traditional absorbent articles such as diapers are daily care products, usually used as absorbent articles to keep the skin dry and hygienic. With the continuous advancement of science and technology, smart diapers are also available to the public, and people's expectations for baby safety and care are constantly increasing. Babies spend most of their time sleeping during their growth, and real-time monitoring of baby health and sleeping posture will help parents understand their babies' sleeping status and health. In the prior art, although there are absorbent articles that use sensors such as three-axis sensors for intelligent monitoring, such absorbent articles often cannot take into account both wearing comfort and sensing functions. For example, urine cannot be absorbed and diffused through the sensing area. And the sensor is usually bonded to a certain surface layer, and because the sensor material is relatively hard, it will also significantly affect the wearing comfort.

[0003] Therefore, the prior art urgently needs an absorbent article or a structure suitable for an absorbent article to effectively solve the problem that intelligent monitoring absorbent articles cannot take into account both wearing comfort and sensing. Utility Model Content

[0004] The utility model aims to overcome at least one of the deficiencies of the above-mentioned prior art and provides a guide plate layer structure, a posture sensor and a corresponding posture monitoring guide unit, and an absorbent article, which are used to solve the problem that intelligent monitoring absorbent articles cannot take into account both wearing comfort and sensing.

[0005] The technical solution adopted by the utility model is a guide plate layer structure used in absorbent articles, including a base layer and a guide channel on the base layer, and a sensor accommodating cavity is provided on the guide channel. A posture sensor can be installed, and the posture sensor is placed in the sensor accommodating cavity. Furthermore, the posture sensor includes a tactile sensor. Furthermore, the tactile sensor is a self-generating friction tactile sensor. The tactile sensor is helpful to monitor changes such as tactile pressure, and then monitor movements and postures. The self-generating friction tactile sensor does not require additional power supply, which improves the convenience of use and helps to improve the comfort of use.

[0006] Based on the guide plate layer structure, it is beneficial to set the posture sensor for monitoring posture in the guide channel, making full use of the longitudinal space of the guide channel. On the one hand, the posture sensor does not occupy additional longitudinal space, thereby improving the flatness of the surface of the absorbent article and avoiding the discomfort caused by unevenness; on the other hand, the posture sensor is set on the guide channel, which can ensure that liquids such as urine are guided when they fall on the sensing area, avoiding liquid accumulation in the sensing area and causing reverse osmosis, further improving comfort. It is worth noting that the combination of absorbent articles and sensors in the prior art is mostly external, and the posture sensors used are mostly sensors with harder materials, which can only sacrifice a certain degree of comfort and bond the sensors to a certain layer of the surface of the absorbent article. At the same time, in order to ensure the basic function of wearing, it is limited to bonding a small number of sensors to one side of the edge, and the monitoring accuracy is also greatly reduced; for this application, based on the guide plate layer structure of this application, it is convenient to arrange the sensor in the guide layer, which can improve the monitoring performance. Because the attitude sensor is located in the diversion channel, and with the distribution of the diversion channel, the attitude sensor can cover more and wider areas, overcoming the limitations of traditional monitoring sensors, and then providing more precise motion signals at each position, thereby improving the accuracy of attitude monitoring. It makes full use of the diversion channel space, combines comfort and monitoring, and facilitates the improvement of monitoring accuracy.

[0007] Further, the diversion channel is a diversion channel along the surface direction of the substrate layer, thereby promoting uniform distribution of liquid in the surface direction of the substrate layer; or, the diversion channel can also be a diversion channel along the substrate layer from the side close to the absorbent article surface layer to the side away from the absorbent article surface layer, guiding the liquid to penetrate into the lower layer, such as guiding it to penetrate into the lower absorbent core; or, the diversion channel has both the diversion function in the direction of the substrate layer surface and the direction of the substrate layer from the side close to the absorbent article surface layer to the side away from the absorbent article surface layer. Specifically, it is a diversion channel in the direction of the substrate layer surface, but there is a wetting gradient from the top to the bottom of the channel, thereby guiding the liquid to penetrate from the top to the bottom, and then guiding it into the absorbent core below. That is, the diversion channel described in the present application should not be limited to diversion in a certain plane direction. Based on different needs and arrangements, the diversion channel of the present application includes a variety of types of options. And they can all provide a position for the posture sensor to be arranged, with both improved comfort and monitoring functions. When the diversion channel is a diversion channel along the surface of the base layer, it can promote the liquid that falls into the sensing area to be conducted in the lateral direction to avoid local accumulation; when the diversion channel is a diversion channel along the base layer from the side close to the absorbent article surface layer to the side away from the absorbent article surface layer, it is conducive to the liquid that falls into the sensing area to be conducted downward in the longitudinal direction to avoid accumulation in the layer where the diversion channel is located. When the diversion channel is a unidirectional diversion channel, that is, it has both lateral and longitudinal liquid diversion functions, it can more efficiently promote the liquid to enter the lower layer and distribute it evenly, avoid local expansion of the absorbent core, and improve comfort.

[0008] Furthermore, a plurality of sensor accommodating cavities are arranged on the flow guide passage, and the plurality of sensor accommodating cavities are arranged at intervals. Furthermore, the interval distance is greater than 1 cm and less than 4 cm. When the absorbent article is worn, it is usually in a bent state, and the interval arrangement between the posture sensors can ensure that the sensors do not abut against each other when bent, and avoid the posture sensors being closely adjacent due to local bending and folding, which causes the feeling that the local material is too hard; it is conducive to ensuring the overall softness when worn.

[0009] Furthermore, the sensor accommodating cavity is a cylindrical cavity located in the flow guiding channel on the base layer; the outer wall of the cylindrical cavity is connected to the side wall of the flow guiding channel.

[0010] Further, the guide channel is a guide channel in the direction of the surface of the substrate layer. Further, the guide channel is a long strip-shaped channel in the direction of the surface of the substrate layer. When the guide channel is set as a long strip-shaped channel, the area for receiving the liquid is longer, which is conducive to the full diffusion of the liquid in the length direction of the guide channel. Further, more than two posture sensors are arranged in a single guide channel. The arrangement of more than two posture sensors in a single guide channel is conducive to at least realizing the front and rear side monitoring of the area covered by a single guide channel, and then feeding back corresponding body posture information, etc. When combined with a plurality of guide channels and posture sensors, posture changes, etc. can be monitored more comprehensively.

[0011] Furthermore, at least one area of ​​the guide channel has a wetting gradient in the direction from the surface layer side of the absorbent article to the bottom layer side, that is, in the direction from the top end to the bottom end of the guide channel, the liquid entering the guide channel is guided to penetrate downward. Furthermore, the guide channel is a unidirectional guide channel, and the bottom end of the guide channel is more hydrophilic than the top end of the guide channel.

[0012] Further, the flow guiding channel is formed by a groove on the base layer, and the groove is filled with a flow guiding material; or, the flow guiding channel is formed by a flow guiding area on the base layer, and the flow guiding area has a flow guiding material.

[0013] Another object of the present invention is to provide a posture sensor used in absorbent article sheets, including a signal generating unit that generates an electrical signal according to posture changes, wherein the signal generating unit is covered with a dielectric layer at least on the surface close to the surface layer side of the absorbent article.

[0014] Furthermore, the dielectric layer is a hydrophobic dielectric layer. The electrical signal generating unit is a single electrode, and the dielectric layer covers the top surface of the single electrode.

[0015] Further, the signal generating unit comprises a cylindrical single electrode. Further, each circular electrode surface is covered with a hydrophobic dielectric layer. Further, the single electrode is a cylindrical electrode. Further, the height is 0.1 to 0.5 cm and the diameter is 0.1 to 1 cm.

[0016] Another object of the utility model is to provide a posture monitoring guide unit, comprising one or more guide plate layer structures and one or more posture sensors, the posture sensors are installed in the sensor accommodating cavity; further, they are installed one by one, that is, comprising a base layer and a guide channel on the base layer, the guide channel is provided with a posture sensor, and the posture sensor is installed in the guide channel through the corresponding sensor accommodating cavity.

[0017] Furthermore, the height of the electrical signal generating unit is smaller than the height of the guiding channel. Furthermore, the width of the dielectric layer is larger than the width of the guiding channel, and the dielectric layer covers the guiding channel. Furthermore, the edge of the dielectric layer is bonded to the upper surface of the base layer beside the guiding channel.

[0018] Furthermore, each diversion channel and its corresponding in-diversion channel attitude sensor together constitute an attitude monitoring diversion assembly. Furthermore, the diversion channel can also be a multi-branch channel in the direction of the substrate surface.

[0019] Another object of the utility model is to provide the application of the aforementioned posture monitoring and diversion unit in the preparation of absorbent articles. Furthermore, the absorbent articles include diapers. When the posture monitoring and diversion unit is applied to diapers, different postures and changes of infants and children can be monitored; taking the example of an infant lying on his side and curling up, the local force on the diaper will show a tensioned state. At this time, the contact pressure on the front and back sides of the tensioned area is different, and corresponding different electrical signals will be generated on the front and back sides of the diaper, thereby providing feedback that the infant is in a curled up state. It is worth noting that the above monitoring process is only a simple example. In actual use scenarios, more accurate and precise posture monitoring can be achieved by cooperating with the diversion channel and the correspondingly distributed posture sensors. The application of the posture monitoring and diversion unit in diapers is conducive to daily monitoring of infants and children and improves the safety of monitoring.

[0020] Another object of the utility model is to provide a guide layer, including one or more of the aforementioned attitude monitoring guide units. Further, the base layer of the guide unit can be formed by a local area of ​​the guide layer. Or, the guide unit and the guide layer can be separated; the guide unit is formed by a base layer that can be separated from the guide layer and a guide channel and an attitude sensor arranged on the base layer; for example, the guide layer is provided with a guide unit cavity with an upper opening, then the guide unit can be a detachable structure installed in cooperation with the guide unit cavity; further, the base layer of the guide unit structure can be installed in cooperation with the guide unit cavity.

[0021] Furthermore, a plurality of guide units are arranged on the guide layer, and the plurality of guide units are arranged in a uniform array. Furthermore, the guide units are arranged in a rectangular array, and at least six attitude sensors are distributed in one row from the front side to the rear side of the guide layer; and at least four attitude sensors are distributed in one row from the left side to the right side of the guide layer.

[0022] When the user changes his or her posture, different compressive stresses will appear in different areas of the sensor array. In one embodiment, the posture sensor uses a dielectric layer and a single electrode structure; the posture sensor is based on the principle of single-electrode friction power generation. The greater the pressure applied to the electrode, the greater the output voltage, that is, the greater the contact pressure, the greater the output. Therefore, the different pressures in different areas can be expressed through the difference in electrical signals, and the user's posture can be judged. Not only can the sleeping posture of the baby be monitored to ensure its safety while sleeping, but also the body posture when awake can be monitored.

[0023] Another object of the present invention is to provide an absorbent core used in absorbent articles, comprising a surface layer, the aforementioned flow guide layer, and a water-absorbent core; the aforementioned flow guide layer is arranged between the surface layer and the water-absorbent core.

[0024] Furthermore, the surface layer is a porous hydrophobic layer. The surface porous hydrophobic layer has a hydrophobic surface material and is provided with a plurality of through holes. When liquid falls into the surface layer, due to the hydrophobicity of the surface layer, the liquid has a tendency to move toward the through holes, prompting the liquid to quickly enter the lower structure through the through holes, thereby preventing the liquid from staying on the surface layer for a long time; and the hydrophobicity of the surface keeps the surface layer dry, which is also conducive to preventing the reverse osmosis of the lower liquid, thereby improving the wearing comfort of the skin-friendly side.

[0025] The absorbent core ensures the traditional function of diversion of absorbent articles such as diapers. Urine can be absorbed by the absorbent core through the diversion channel, and the hydrophobic porous structure on the surface can ensure that the user's skin is dry while avoiding urine back osmosis, thereby ensuring the wearing comfort of the diaper.

[0026] Another object of the utility model is to provide an absorbent article, comprising: the aforementioned flow guide unit; or, the aforementioned flow guide layer; or, the aforementioned absorbent core. Further, when comprising the aforementioned flow guide layer and the water-absorbent core; the flow guide layer is arranged above the water-absorbent core. The absorbent article provided by the present application is comfortable to wear, and integrates posture sensor technology, which can monitor body posture and movement in real time, aiming to provide innovative solutions in the field of infant care. In addition, these sensors can also be connected to a micro Bluetooth module to communicate with a smartphone or other device, thereby realizing the data transmission and monitoring functions of the terminal. Based on the absorbent article and the corresponding monitoring system, not only the sleeping posture of the baby can be monitored to ensure its safety while sleeping, but also the body posture when awake can be monitored. This is very meaningful for avoiding dangerous situations that babies may encounter, such as sleeping on their stomachs or falling.

[0027] Specifically, the absorbent article comprises an absorbent article body and the aforementioned absorbent core, wherein the absorbent article body comprises a front waist portion, a rear waist portion and a crotch portion, and the absorbent core is placed in the crotch portion of the absorbent article. The crotch portion of the absorbent article comprises an inner lining on the skin-friendly side and an outer layer on the back side, and the absorbent core is arranged between the inner lining and the outer layer; or, the absorbent core is arranged on the skin-friendly side, and the surface layer of the absorbent core forms the inner lining of the crotch portion of the absorbent article.

[0028] Another object of the present invention is to provide a body posture monitoring system, comprising:

[0029] The aforementioned absorbent article has a posture sensor installed in the absorbent article, which provides a body fluid absorption function and generates a corresponding sensor signal according to the posture of the individual wearing the absorbent article;

[0030] The communication module transmits all posture sensor signals in the diaper to the server; further, the communication module may include a micro Bluetooth module to receive and transmit posture sensor electrical signals.

[0031] The server matches the posture information of the corresponding wearer according to all posture sensor signals in the absorbent article and sends the information to the terminal device;

[0032] The terminal device receives the posture information of the wearer from the server and displays the monitoring results visually.

[0033] Furthermore, the server stores a posture relationship database that matches all posture sensor signals with posture information of the wearer.

[0034] Compared with the prior art, the beneficial effects of the utility model are as follows: the corresponding posture monitoring guide unit can be constructed by using the guide sheet layer structure and the sensor, and a combined structure of a posture sensor coupled with a guide area can be formed in the corresponding guide layer, the absorbent core or the absorbent article, so as to solve the problem that the intelligent monitoring of absorbent articles cannot take into account both wearing comfort and sensing. Through the posture monitoring guide unit and the corresponding guide layer, the absorbent core and the absorbent article provided by the present application, the traditional guide function of the absorbent article is still guaranteed, and liquids such as urine can be absorbed by the absorbent core through the guide channel. The sensor makes full use of the space occupied by the guide channel to improve the wearing comfort; and the sensing area is not limited to being distributed only on the edge of the absorbent article, and can be reasonably and widely arranged, including being arranged on the center side, thereby improving the monitoring accuracy. It has both improved wearing comfort and monitoring performance. In the specific structure, the absorbent article may also include a hydrophobic porous structure surface layer above the guide unit or the guide layer to ensure that the user's skin is dry while avoiding the reverse osmosis of urine, further ensuring the wearing comfort of the diaper. The one-way guide channel and the sensor area are rationally coupled together to achieve efficient guide function while monitoring the user's posture and status, monitoring the posture and movements of the wearer, providing safety and facilitating care. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of the guide plate layer of the utility model

[0036] Figure 2 It is a structural schematic diagram of the posture monitoring and diversion unit of the utility model.

[0037] Figure 3 This is a schematic diagram of the absorbent core structure of the utility model.

[0038] Figure 4 This is a schematic diagram of the structure of the guide layer of the utility model.

[0039] Figure 5 This is a schematic diagram of the structure of the absorbent article of the utility model (I).

[0040] Figure 6 This is a schematic diagram of the structure of the absorbent article of the utility model (II).

[0041] Description of the drawings: absorbent article 100, front waist 110, rear waist 120, crotch 130, lining 140, outer layer 150, guide layer 300, posture monitoring guide unit 310, base layer 320, guide channel 330, sensor accommodating cavity 340, posture sensor 400, single electrode 410, dielectric layer 420, water absorbent core 500. DETAILED DESCRIPTION

[0042] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0043] Example 1

[0044] like Figure 1 As shown, this embodiment discloses a guide sheet layer structure used in an absorbent article, including a base layer 320 and a guide channel 330 on the base layer 320, wherein a sensor accommodating cavity 340 is provided on the guide channel 330. The sensor accommodating cavity 340 can be installed with a posture sensor 400, and the posture sensor 400 is placed in the sensor accommodating cavity 340.

[0045] The posture sensor 400 may be a tactile sensor; the tactile sensor is a self-generating friction tactile sensor. The tactile sensor is useful for monitoring changes in tactile pressure and the like, and further monitoring movements and postures. The self-generating friction tactile sensor does not require additional power supply, which improves the convenience of use and helps improve the comfort of use. The posture sensor 400 used in this embodiment is the sensor of the following embodiment 2.

[0046] The guide channel 330 may be a guide channel 330 along the surface direction of the substrate layer 320, thereby promoting uniform distribution of liquid on the surface direction of the substrate layer 320; or, the guide channel 330 may also be a guide channel 330 along the substrate layer 320 from the side close to the absorbent article surface layer to the side away from the absorbent article surface layer, guiding the liquid to penetrate into the lower layer, such as guiding it to penetrate into the lower absorbent core; or, the guide channel 330 has both the guide function on the surface direction of the substrate layer 320 and the side close to the absorbent article surface layer to the side away from the absorbent article surface layer. This embodiment adopts a unidirectional guide channel 330 with both transverse and longitudinal guide functions, specifically, a guide channel 330 on the surface direction of the substrate layer 320, but the channel has a wetting gradient from the top to the bottom, thereby guiding the liquid to penetrate from the top to the bottom, and then guiding it into the absorbent core below. The guide channel 330 is a long strip channel on the surface direction of the substrate layer 320. That is, the diversion channel 330 described in the present application should not be limited to the diversion in a certain plane direction. Based on different needs and arrangements, the diversion channel 330 of the present application includes a variety of types of options. And all can provide a location for the posture sensor 400 to be arranged, with both comfort and monitoring functions. When the diversion channel 330 is a diversion channel 330 along the surface direction of the base layer 320, it can promote the liquid falling into the sensing area to be conducted in the lateral direction to avoid local accumulation; when the diversion channel 330 is a diversion channel 330 along the base layer 320 close to the absorbent article surface layer side to the absorbent article surface layer side, it is conducive to the liquid falling into the sensing area to be conducted downward in the longitudinal direction to avoid accumulation in the layer where the diversion channel 330 is located. When the diversion channel 330 is a unidirectional diversion channel 330, that is, it has both lateral and longitudinal liquid diversion functions, it can more efficiently promote the liquid to enter the lower layer and distribute it evenly, avoid local expansion of the absorbent core, and improve comfort.

[0047] In this embodiment, at least one area of ​​the guide channel 330 has a wetting gradient in the direction from the surface layer side to the bottom layer side of the absorbent article, that is, in the direction from the top to the bottom of the guide channel 330, the liquid entering the guide channel 330 is guided to penetrate downward. Further, the guide channel 330 is a unidirectional guide channel 330, and the bottom of the guide channel 330 is more hydrophilic than the top of the guide channel 330.

[0048] In this embodiment, a plurality of sensor accommodating cavities 340 are arranged on the flow guiding channel 330, and the plurality of sensor accommodating cavities 340 are arranged at intervals. Furthermore, the interval distance is greater than 1 cm and less than 4 cm. The sensor accommodating cavity 340 is a cylindrical cavity located in the flow guiding channel 330 on the base layer 320. More than two accommodating cavities 340 for the posture sensor 400 are arranged in a single flow guiding channel 330.

[0049] Example 2

[0050] This embodiment discloses a posture sensor 400 used in an absorbent article layer, including a signal generating unit that generates an electrical signal according to a posture change, wherein the signal generating unit is covered with a dielectric layer 420 at least on the surface close to the surface layer of the absorbent article. The structure and position of the sensor in the absorbent article are as follows: Figure 3 , 4 shown.

[0051] The dielectric layer 420 is a hydrophobic dielectric layer 420. The electrical signal generating unit is a cylindrical single electrode 410, and the dielectric layer 420 covers the top surface of the single electrode 410. In this embodiment, each circular electrode surface is covered with a hydrophobic dielectric layer 420. Further, the single electrode 410 has a height of 0.1 to 0.5 cm and a diameter of 0.1 to 1 cm.

[0052] Example 3

[0053] like Figure 2 As shown, this embodiment discloses a posture monitoring guide unit 310, including one or more of the aforementioned guide plate layer structures and one or more of the aforementioned posture sensors, wherein the posture sensors are installed in the sensor accommodating cavity.

[0054] The guide channel 330 is a guide channel 330 along the surface direction of the base layer 320, so as to promote the uniform distribution of liquid in the surface direction of the base layer 320; or, the guide channel 330 can also be a guide channel 330 along the base layer 320 from the side of the absorbent article 100100 to the side away from the surface layer of the absorbent article 100, guiding the liquid to penetrate into the lower layer, such as guiding it to penetrate into the lower absorbent core 500; or, the guide channel 330 has both the guide function in the surface direction of the base layer 320 and the direction of the base layer 320 from the side of the absorbent article 100 to the side away from the surface layer of the absorbent article 100. Specifically, the present embodiment adopts a unidirectional guide channel 330 with both functions, such as Figure 1 As shown, the guide channel 330 is on the surface of the base layer 320, but there is a wetting gradient from the top to the bottom of the channel, so as to guide the liquid to penetrate from the top to the bottom, and then guide it into the water-absorbing core 500 below.

[0055] The guide channel 330 described in the present application should not be limited to the guide in a certain plane direction. Based on different needs and arrangements, the guide channel 330 of the present application includes a variety of types to choose from.

[0056] In this embodiment, each guide channel 330 and its corresponding posture sensor 400 in the guide channel 330 together constitute a posture monitoring guide assembly. In addition to a single channel, the guide channel 330 is also configured as a multi-branch guide channel in the surface direction of the substrate layer 320 according to requirements.

[0057] The posture sensor 400 includes a tactile sensor. Furthermore, the tactile sensor is a self-generating friction tactile sensor. The tactile sensor is useful for monitoring changes in tactile pressure and the like, and further monitoring movements and postures. The self-generating friction tactile sensor does not require additional power supply, thereby improving the convenience of use and the comfort of use.

[0058] In this embodiment, the posture sensor 400 includes an electrical signal generating unit, and the electrical signal generating unit is covered with a dielectric layer 420 at least on the surface close to the surface layer side of the absorbent article 100, and the electrical signal generating unit is located in the guide channel 330; the height of the electrical signal generating unit is less than the height of the guide channel 330. The dielectric layer 420 is a hydrophobic dielectric layer 420. The electrical signal generating unit is a single electrode 410, and the dielectric layer 420 is covered on the top surface of the single electrode 410. In this embodiment, the surface of each circular electrode is covered with a hydrophobic dielectric layer 420; the single electrode 410 is a cylindrical electrode. The height of the single electrode 410 ranges from 0.1 to 0.5 cm, and the diameter ranges from 0.1 to 1 cm.

[0059] In this embodiment, the width of the dielectric layer 420 is greater than the width of the guide channel 330 , and the dielectric layer 420 covers the guide channel 330 . Furthermore, the edge of the dielectric layer 420 is bonded to the upper surface of the base layer 320 beside the guide channel 330 .

[0060] As mentioned above, the guide channel 330 of this embodiment has a wetting gradient in the direction from the surface layer side to the bottom layer side of the absorbent article 100, that is, in the direction from the top to the bottom of the guide channel 330, the liquid entering the guide channel 330 is guided to penetrate downward. The guide channel 330 is a unidirectional guide channel 330, and the bottom of the guide channel 330 is more hydrophilic than the top of the guide channel 330.

[0061] The guide channel 330 is formed by a groove on the base layer 320, and the groove is filled with a guide material; or, the guide channel 330 is formed by a guide area on the base layer 320, and the guide area has a guide material.

[0062] In order to improve the accuracy of posture movement monitoring, in this embodiment, a plurality of posture sensors 400 are provided in each diversion channel 330, and the plurality of posture sensors 400 are spaced apart. The spacing distance is greater than 1 cm and less than 4 cm. In addition to being directly placed in the diversion channel 330, the single electrode 410 is relatively fixed by bonding with a dielectric layer 420, and a sensor accommodating cavity can also be provided on the diversion channel 330. The posture sensor 400 is installed on the sensor accommodating cavity, and the side wall of the sensor accommodating cavity can be formed of a hydrophilic material to prevent the sensor from obstructing the liquid diversion. In this embodiment, more than two posture sensors 400 are provided in a single diversion channel 330.

[0063] In this embodiment, the guide channel 330 is a long strip channel on the surface direction of the base layer 320; the guide channels 330 between the different posture monitoring guide units 310 can be arranged side by side and / or in parallel.

[0064] The posture monitoring and guiding unit 310 in this embodiment can be applied in the preparation of the absorbent article 100. The absorbent article 100 includes a diaper.

[0065] Example 4

[0066] This embodiment discloses a guide layer 300, which includes one or more guide units as described above. The base layer 320 of the guide unit can be formed in a local area of ​​the guide layer 300, such as Figure 4 Or, the guide unit and the guide layer 300 can be separated; the guide unit is formed by the base layer 320 that can be separated from the guide layer 300, the guide channel 330 and the attitude sensor 400 provided on the base layer 320; for example, if the guide layer 300 is provided with a guide unit cavity with an upper opening, the guide unit can be a separable structure installed in cooperation with the guide unit cavity; the base layer 320 of the guide unit structure can be installed in cooperation with the guide unit cavity.

[0067] In this embodiment, a plurality of guide units are arranged on the guide layer 300, and the plurality of guide units are arranged in a uniform array. The rectangular array is arranged, and at least six attitude sensors 400 are distributed in one row from the front side to the rear side of the guide layer 300; at least four attitude sensors 400 are distributed in one row from the left side to the right side of the guide layer 300, such as Figure 4 , 5 shown.

[0068] When the user changes his or her posture, different compressive stresses will appear in different areas of the sensor array. In one embodiment, the posture sensor 400 adopts a dielectric layer 420 and a single electrode 410 structure; the posture sensor 400 is based on the principle of frictional power generation of a single electrode 410. The greater the pressure applied to the electrode, the greater the output voltage. Therefore, the different pressures in different areas can be expressed through the difference in electrical signals, and the user's posture can be judged. Not only can the sleeping posture of the baby be monitored to ensure its safety while sleeping, but also the body posture when awake can be monitored.

[0069] Example 5

[0070] like Figure 3 As shown, this embodiment discloses an absorbent core, including a surface layer, the aforementioned flow-guiding layer 300, and a water-absorbing core 500; the aforementioned flow-guiding layer 300 is disposed between the surface layer and the water-absorbing core 500. In this embodiment, the surface layer is a porous hydrophobic layer.

[0071] The absorbent core ensures the traditional function of diversion of absorbent articles 100 such as diapers. Urine can be absorbed by the absorbent core 500 through the diversion channel 330, and the hydrophobic porous structure on the surface can ensure that the user's skin is dry while avoiding urine back osmosis, thereby ensuring the wearing comfort of the diaper.

[0072] Example 6

[0073] like Figure 6 As shown, the present embodiment provides an absorbent article 100, comprising: the aforementioned flow guide unit; or, the aforementioned flow guide layer 300; or, the aforementioned absorbent core. The absorbent article 100 provided in the present application is comfortable to wear, and integrates the posture sensor 400 technology, which can monitor body posture and movement in real time, and aims to provide innovative solutions in the field of infant care. In addition, these sensors can also be connected to a micro Bluetooth module to communicate with a smartphone or other device, thereby realizing the data transmission and monitoring functions of the terminal. Based on the absorbent article 100 and the corresponding monitoring system, not only can the sleeping posture of the baby be monitored to ensure its safety while sleeping, but also the body posture when awake can be monitored. This is very meaningful for avoiding dangerous situations that babies may encounter, such as sleeping on their stomachs or falling.

[0074] Specifically, the absorbent article 100 includes an absorbent article 100 body and the aforementioned absorbent core, wherein the absorbent article 100 body includes a front waist portion 110, a rear waist portion 120 and a crotch portion 130, and the absorbent core is placed in the crotch portion 130 of the absorbent article 100. The crotch portion 130 of the absorbent article 100 includes an inner lining 140 on the skin-friendly side and an outer layer 150 on the back side, and the absorbent core is disposed between the inner lining 140 and the outer layer 150; or, the absorbent core is disposed on the skin-friendly side, and the surface of the absorbent core surface layer forms the inner lining 140 of the crotch portion 130 of the absorbent article 100.

[0075] This embodiment also provides a body posture monitoring system based on the aforementioned absorbent article 100, comprising:

[0076] The aforementioned absorbent article 100, in which a posture sensor 400 is installed, provides a body fluid absorption function and generates a corresponding sensor signal according to the posture of the individual wearing the diaper;

[0077] The communication module transmits the signals of all the posture sensors 400 in the diaper to the server; further, the communication module may include a micro Bluetooth module to receive and transmit the electrical signals of the posture sensors 400.

[0078] The server matches the corresponding individual posture information of the wearer according to the signals of all the posture sensors 400 in the diaper and sends the information to the terminal device;

[0079] The terminal device receives the posture information of the individual being worn from the server and displays it visually.

[0080] The server stores a posture relationship database that matches all posture sensor 400 signals with the posture information of the wearer.

[0081] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A guide sheet layer structure used in an absorbent article, characterized in that: It comprises a base layer and a flow guiding channel on the base layer, wherein a sensor accommodating cavity is arranged on the flow guiding channel.

2. The guide plate layer structure according to claim 1, characterized in that: A plurality of sensor accommodating cavities are arranged on the flow guiding channel, and the plurality of sensor accommodating cavities are arranged at intervals.

3. The guide plate layer structure according to any one of claims 1 to 2, characterized in that: The guide channel is a guide channel in the surface direction of the substrate layer.

4. The guide plate layer structure according to claim 3, characterized in that: At least one region of the flow guiding channel has a wetting gradient in a direction from the surface layer side to the bottom layer side of the absorbent article, so as to guide the liquid entering the flow guiding channel to penetrate downward.

5. A posture sensor used in a sheet of an absorbent article, characterized in that: The invention comprises a signal generating unit for generating an electric signal according to a posture change, wherein the signal generating unit is covered with a dielectric layer at least on a surface close to a surface layer of the absorbent article.

6. The attitude sensor according to claim 5, characterized in that: The dielectric layer is a hydrophobic dielectric layer.

7. The attitude sensor according to claim 5, characterized in that: The signal generating unit includes a cylindrical single electrode.

8. A posture monitoring and guidance unit, characterized in that: It comprises the guide plate layer structure according to any one of claims 1 to 4 and the attitude sensor according to any one of claims 5 to 7, wherein the attitude sensor is installed in the sensor accommodating cavity.

9. A guide layer, characterized in that: The method comprises one or more posture monitoring and guidance units as described in claim 8.

10. An absorbent article, characterized in that: It comprises the guide layer and water absorbent core as described in claim 9; the guide layer is arranged above the water absorbent core.

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