KR101093906B1 - Disposable gel sheet for cloth diaper and panty type diaper and hygienic band for inserting thereof and method for manufacturing thereof - Google Patents

Abstract

The present invention is filled with a super absorbent gel in the interior to increase the absorbency of the diaper, and disposable gel sheet for diaper diaper and disposable diaper inserted into the diaper, and panty-shaped diaper diaper that can be used by inserting It provides a cotton sanitary pad and gel sheet manufacturing method.

According to the disclosed method for manufacturing a disposable gel sheet for diaper and a panty-shaped cotton diaper and a cotton sanitary pad and a gel sheet which can be used by inserting the disposable diaper, the diaper can be inserted into the diaper for use as an absorbent layer of the diaper and can be used for single use. In addition to increasing convenience, skin troubles such as skin rash can be minimized. Moreover, the environmental pollution can be minimized by not using the pulp layer portion used in the conventional disposable diapers. In addition, when the seals are formed in the gel sheet, the gels filled in the gel sheet can be stably maintained and uniformity of the distribution as the gels are contained in a uniform space and do not move to the outside. .

Description

Disposable gel sheet for cloth diaper and panty type diaper and hygienic band for inserting jelly and method for manufacturing

The present invention relates to a disposable gel sheet for diaper diaper and a method for manufacturing a panty-shaped cotton diaper and a cotton sanitary pad and a gel sheet which can be used by inserting the diaper diaper, and more specifically, a disposable gel sheet for diaper diaper and disposable The present invention relates to a panty-shaped nipper and a cotton sanitary pad and a gel sheet manufacturing method which can be used by inserting the same.

Conventional diaper diaper has good benefits for the skin of the wearer (baby, old man, animal, etc.), but as the absorption rate is low, a large amount of cotton should be used for sufficient urine absorption. Therefore, there are disadvantages in that it is difficult to use, such as washing, drying, management and the like. In addition, due to these problems, the current situation is a disposable diaper using a super absorbent polymer rather than a diaper. However, such disposable diapers may cause skin rash and environmental pollution due to the diaper, which is harmful to the human body and is not environmentally friendly. Therefore, there is a need for a diaper that is excellent in absorbency and easy to dry while using cloth material (ex, cotton material).

An object of the present invention is to provide a disposable gel sheet for a diaper and a method for manufacturing the diaper, which is inserted into the diaper and used for a single use so as to be used as an absorbent layer of the diaper.

In addition, an object of the present invention is to provide a panty-type cotton diaper and a cotton sanitary pad in which the disposable gel sheet for diaper diaper is inserted to form a usable insertion space.

The present invention provides a disposable gel sheet for diapers, which is filled with superabsorbent gels so as to increase the absorbency of the diapers, and inserted into the diapers.

Here, the gel sheet may include a lower sheet and an upper sheet. In this case, the superabsorbent gels may be filled between the lower sheet and the upper sheet.

In addition, the gel sheet may form a plurality of seals to form a plurality of spaces separated from each other between the lower sheet and the upper sheet, so that the gel does not flow out of the space. Here, the suture may be formed by ultrasonic welding.

In addition, when the gels filled in the space absorb moisture and expand, the suture may be opened to form a single space. The cover sheet may further include a cover sheet surrounding the gel sheet so that the expanded gel does not flow out of the gel sheet, wherein the lower sheet, the upper sheet, and the cover sheet are made of a nonwoven material. Can be.

In another aspect, the present invention provides a panty-shaped cotton diaper with the disposable gel sheet for diaper inserted into the insert space can be used.

The present invention also provides a surface sanitary pad in which the disposable gel sheet is inserted to form a usable insertion space.

In addition, the present invention, the step of placing the superabsorbent gels on the upper surface of the lower sheet, and covering the upper sheet on the upper portion of the lower sheet, to form a gel sheet filled with the gel sheet, and the lower sheet And forming a plurality of seals to form a plurality of spaces separated from each other between the upper sheet and the top sheet, thereby preventing the gels from flowing out of the corresponding space. .

Here, the forming step of the sealing unit, it may use an ultrasonic fusion method. In addition, after the forming of the seal, the gel sheet may be further covered with a cover sheet so that gels expanded by absorbing moisture do not flow out of the gel sheet.

According to the present invention, a disposable gel sheet for diaper diaper and a panty-type diaper and cotton sanitary pad and gel sheet manufacturing method which can be used by inserting the diaper diaper are inserted into the diaper so as to be used as an absorbent layer of the diaper and can be used as a disposable cloth. In addition to increasing the convenience of use of the diaper, it is possible to minimize skin troubles such as skin rash. Moreover, the environmental pollution can be minimized by not using the pulp layer portion used in the conventional disposable diapers. In addition, when the seals are formed in the gel sheet, the gels filled in the gel sheet can be stably maintained and uniformity of the distribution as the gels are contained in a uniform space and do not move to the outside. .

A perspective view of a disposable gel sheet for diaper diaper according to an embodiment of the present invention and a diaper diaphragm (panty type diaper) which can be inserted therein, and FIG. 2 is a cross-sectional view of FIG. 3 is a perspective view showing a cover sheet in FIG. 1, and FIG. 4 is a cross-sectional view of FIG. 3. 5 is a perspective view for explaining the manufacturing method of FIG.

6 is an explanatory view of the ultrasonic fusion, and FIG. 7 is a configuration diagram of the ultrasonic fusion used for forming the suture portion of FIG. 1. FIG. 8 is an exemplary diagram of a diaper inserted into FIG. 1 or FIG. 3.

1 and 2, the disposable gel sheet 100 for the diaper is filled with superabsorbent gels 130 therein, and is inserted into the diaper and can be used for single use. The superabsorbent gels 130 are for increasing the absorbency of the diaper, and gels of various known materials are applicable.

The gel sheet 100 may be inserted into and used in various types of diaper as well as the panty-shaped diaper of FIG. 8. As described above, since the gel sheet 100 is used as the absorbent layer of the diaper, it is easy to wash, dry, and manage the diaper, and can increase the convenience of using the diaper.

The gel sheet 100 includes a lower sheet 110 and an upper sheet 120. In this case, the superabsorbent gels 130 may be filled to be uniformly distributed between the lower sheet 110 and the upper sheet 120. An example in which the superabsorbent gels 130 are filled will be described later.

Here, the gel sheet 100 forms a plurality of spaces 10 which are separated from each other between the lower sheet 110 and the upper sheet 120, so that the gels 130 have uniform spaces ( 10, the plurality of sutures 140 are formed at regular intervals. As the seals 140 prevent the gels 130 from flowing out of the space 10, the gels 130 are stably maintained in the space 10, as well as the gel sheet 100. ) Uniformity of the distribution of the gels 130 filled in can be maintained. 9 and 10 are photographs corresponding to FIGS. 1 and 2, which show a perspective view and a cross-sectional view of the gel sheet actually manufactured.

Referring to FIG. 6, such a sealing unit 140 may be formed by ultrasonic welding. Of course, the suture 140 is not necessarily limited to the one by the ultrasonic fusion, it is obvious that it can be selectively applied from a variety of known sealing methods.

The ultrasonic welding is a technique of generating frictional heat on the contact surface of the product through the generation of vibration, and pressing and fusion of the contact surface melted by the frictional heat. The ultrasonic fusion machine 160 includes an oscillator 161, a vibrator 162, a booster 163, and a tool horn 164. The oscillator 161 generates an electric signal of 15 KHz to 60 KHz, the vibrator 162 converts the electric signal into vibration, and the booster 163 amplifies the vibration. In addition, the tool horn 164 is a part which directly touches the workpiece and transmits the vibration of the booster 163. That is, the strong vibration transmitted to the workpiece through the tool horn 164 generates frictional heat, and at this time, the joint surface of the workpiece melts and is press-bonded.

Important matters in ultrasonic welding are the selection of the material of the workpiece, the welding method, and the shape of the joining site. FIG. 7 is a grid structure as an example of a jig 165 for manufacturing the seal 140 of FIG. 1. The jig 165 has protrusions 166 having a rhombic shape at regular intervals. Of course, the protrusion 166 is also formed in the rim line portion, it can be used to seal the rim line 141 of the gel sheet 100.

Here, the bonding strength level of the ultrasonic fusion, the gel 130 of the gel sheet 100 should be closed to the extent that the sealing portion 140 is opened when the water absorbs and expands. That is, when the gels 130 filled in the space 10 absorb water and expand, the seal 140 is opened to form a single space. In other words, before the gels 130 absorb the moisture, uniform spaces 10 are provided due to the sealing portions 140 joined at uniform intervals, and spaces 10 separated from each other when the gels 130 absorb moisture. ) Grows into one single space. Therefore, when the gels 130 are expanded, the sutures 140 may be opened to allow the gels 130 to sufficiently expand in the single space.

However, in this process, the gels 130 that expand by absorbing moisture may flow out of the gel sheet 100. Referring to FIGS. 3 and 4, the gel sheet 100 may include a cover sheet 150 covering the gel sheet 100 as a whole so that external leakage of the gels 130 may not occur.

Meanwhile, the lower sheet 110, the upper sheet 120, and the cover sheet 150 may be made of a nonwoven material. Currently, the most commonly used disposable diaper is a form in which gels are disposed in a pulp layer, which corresponds to a portion actually touching the skin. In the conventional disposable diapers, gels expanded by absorbing moisture cause chemical reactions with the pulp layer, and such chemical reactions may cause deterioration of sexual function and skin diseases of babies.

However, according to the proposed gel sheet 100, the gels 130 are disposed on the nonwoven fabric without using the pulp layer at all, which does not cause the above-described chemical reaction. In addition, since the gel sheet 100 is used by being inserted into the inner diaper (ex, cotton diaper, etc.), the part directly contacting the wearer's skin corresponds to the cloth portion of the diaper. Since the cloth has a low thermal conductivity, heat is not directly transmitted to the skin, and thus the heat is not directly transmitted, and thus the skin and sexual function are not affected. Of course, even when the gel sheet 100 is provided with a cover sheet 150, by configuring the cover sheet 150 of a nonwoven material, the above advantages can be realized.

Since the gel sheet 100 does not use any part of the pulp layer that is openly used in existing disposable diapers as described above, there is also an advantage of minimizing environmental pollution. Moreover, the disposable gel sheet for diaper diaper 100 is expected to bring the expansion of the contracted diaper diaper market by maximizing the ease of use of the existing diaper.

Here, the panty-shaped cotton diaper 200 may be used as the diaper. The panty-shaped diaper 200 is inserted into the disposable gel sheet 100 for the diaper to form a usable insertion space 210 therein. For example, the panty-shaped cotton diaper 200 includes an outer skin 220 and an inner skin 230, and the insertion space 210 may be formed between the inner skin 220 and the outer skin 230. In order to reduce the phenomenon that the gel sheet 100 inserted into the insertion space 210 is separated to the outside, various means may be used. For example, one side 211 of the insertion space 210 may be closed and only the other side 212 may be opened. Of course, the method for preventing the departure, it is apparent that it can be variously realized through the change of the coupling form of the inner skin 220 and the inner skin 230 constituting the panty-shaped cotton diaper 200, a separate fixing means and the like. . In addition, the gel sheet 100 may be provided with an attachment means separately, and the gel sheet 100 may be attached and inserted into the insertion space 210 of the panty-shaped diaper 200. In addition, the panty type surface diaper 200 may be formed with the attachment portion 240 to enable waist bending as in the conventional case. Shape and material of the attachment portion 240 may be applied to a variety of known configurations.

On the other hand, the shape of the panty-shaped diaper 200 is not necessarily limited to the form shown in Figure 1, more various modifications are possible, the disposable gel sheet 100 is inserted into the insertion space 210 can be used If the formed panty type cotton diaper 200 is obvious that all concepts are applicable.

FIG. 18 is a plan view of a surface sanitary pad capable of inserting the disposable gel sheet, and FIG. 19 is a perspective view illustrating the surface sanitary pad of FIG. 18 capable of inserting the disposable gel sheet. Referring to FIGS. 18 and 19, in addition to the panty-type cotton diapers 200, the women's cotton sanitary pad 300 may be applied to the cloth diapers. It is obvious that the surface sanitary pad 300 falls into the category of the diaper.

The surface sanitary pad 300, the disposable gel sheet 100 is inserted to form a usable insertion space 310 therein. In more detail, the surface sanitary pad 300, the upper surface 320 and the lower surface 330 abut each other to form the insertion space 310 therein, the insertion space 310 on the upper surface 320 Forming the cut portion 340 is in communication with, it is a form that can be inserted into the disposable gel sheet 100 through the cut portion 340. Here, the gel sheet 100 may be provided with an attaching means separately, and the gel sheet 100 may be attached and inserted into the insertion space 310 of the surface sanitary pad 300.

On the other hand, the shape of the surface sanitary pad 300 is not necessarily limited to the form shown in Figure 1, more various modifications are possible, the disposable gel sheet 100 is inserted to form a usable insertion space 310 If the configuration of one side sanitary corps 300 is clear that the concept is all applicable.

Hereinafter, with reference to Figure 5, it will be described an embodiment of the manufacturing method of the disposable gel sheet 100 for diaper. First, the superabsorbent gels 130 are disposed on the upper surface of the lower sheet 110. The arrangement of the gels 130 may be used in a variety of ways, such as spraying, application. In addition, the upper sheet 120 is covered on the upper portion of the lower sheet 110 to form a gel sheet 100 in which the gels 130 are filled.

In this case, the plurality of seals 140 are formed by using the ultrasonic welding to form a plurality of spaces 10 which are separated from each other between the lower sheet 110 and the upper sheet 120. The gels 130 do not flow out of the space. Then, the gel sheet 100 thus prepared is inserted into the diaper and used for single use. Here, of course, the gel sheet 100 is absorbed and expanded so that the gel sheet 100 is wrapped in the cover sheet 150 so as not to flow out of the gel sheet 100, and then inserted into the diaper for disposable use. It is also possible to use.

Hereinafter, the absorbency test results of the gel sheet 100 will be described with reference to FIGS. 11 and 14. FIG. 11 is a cross-sectional view of the laminated state of the gel sheet of FIG. 1 used in the experiment, FIG. 12 is a photograph of the actual laminated state of FIG. 11, FIG. 13 is a photograph of the hydrated gel sheet of FIG. 12, and FIG. 13. Is a detailed cross-sectional picture of the gel sheet after hydration in FIG.

In the experiment, the gel sheet 100 of FIG. 2 without the cover sheet 150 was used. Then, the structure of FIG. 11 in which two layers 20 are disposed on the upper part of the gel sheet 100 of FIG. Was used. This is to satisfy the condition that the gel sheet 100 is inserted into the surface diaper.

In the experiment, the flow rate was 5.15 l / h (1.43 ml / s). Referring to Table 1 below, five test sheets were used. The five sheets include a face sheet formed of eight layers of surfaces used as a comparison target of the gel sheet, and four gel sheets 100 below. The four gel sheets 100 have the shape of FIG. 11 but vary the amount of the gels 130 filled.

[Table 1]

Hereinafter, the results of the water absorption test, the water leakage test, the repeated water absorption amount test, and the cumulative water absorption amount test will be described with reference to FIGS. 15 to 17. 14-16 show graphs of the results of each of the three experiments.

1) Leakage Experiment

Since a separate waterproof layer is not formed on the gel sheet to maintain breathability of the diaper, the performance of the gel sheet can be evaluated through a vertical leakage test under the same conditions as the absorbent layer of the conventional diaper. Referring to the results of the experiment with reference to Table 2 and FIG. 15, gel sheets # 3 and # 4 have a long leakage time for the total number of repetitions compared to the conventional cotton sheet (corresponding to the existing cotton diapers). Of course, the longer the leak time, the better the absorbency.

[Table 2] Unit: Second

10 shows a cross-sectional picture of the gel sheet 100 before hydration, and FIG. 13 shows a cross-sectional picture of the gel sheet 100 after hydration due to the leak test. 14 shows the detailed cross-sectional photograph of the gel sheet after hydration in FIG.

2) Repeated water absorption experiment

Repeated moisture absorption is an important performance factor in diaper performance. When water was flowed through the prepared gel sheet at a constant rate, the amount of water absorbed in the gel sheet was repeatedly tested until water passed perpendicularly to the gel sheet.

 Referring to Table 3 and FIG. 16, it can be seen that even in the results of this experiment, gel sheets # 3 and # 4 exhibited superior absorption compared to conventional cotton sheets (corresponding to existing cotton diapers).

Table 3 Unit: ml

3) Cumulative Water Absorption Test

The existing cotton diapers were folded and used to make 8-12 layers. As a result, referring to Table 4 and FIG. 17, gel sheet # 3 containing 4.07 g of gel and gel sheet # 4 containing 7.20 g of gel were absorbed and absorbed compared to conventional cotton sheets (corresponding to existing cotton diapers). It can be seen that the leak performance is excellent overall.

Table 4 Unit: ml

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a perspective view of a disposable gel sheet for diaper diaper according to an embodiment of the present invention and a diaper diaphragm (panty type diaper) which can be inserted therein;

2 is a cross-sectional view of FIG.

3 is a perspective view of a cover sheet provided in FIG.

4 is a cross-sectional view of FIG.

5 is a perspective view for explaining the manufacturing method of FIG.

6 is an explanatory diagram of ultrasonic welding;

7 is a configuration diagram of ultrasonic welding used to form the suture of FIG.

8 is an exemplary view of a diaper diaper inserted into FIG. 1 or FIG. 3;

9 and 10 are photographs corresponding to FIGS. 1 and 2,

11 is a cross-sectional view of the laminated state of the gel sheet of Figure 1 used in the experiment,

12 is a photograph of the actual lamination state of FIG.

FIG. 13 is a photograph of a state in which a gel sheet is hydrated in FIG. 12;

14 is a detailed cross-sectional photograph of the gel sheet after hydration in FIG. 10,

15 to 17 is a graph of the results of the leakage test, repeated moisture absorption experiment, cumulative moisture absorption experiment,

18 is a plan view of the cotton sanitary pad that can be inserted into the disposable gel sheet,

FIG. 19 is a perspective view illustrating the disposable gel sheet and the surface sanitary pad of FIG. 18 capable of inserting the disposable gel sheet. FIG.

<Description of Symbols for Main Parts of Drawings>

100: disposable diaper gel sheet for diaper 110: lower sheet

120: top sheet 130: gel

140: sealing unit 150: cover sheet

200: panty nipple 210: insertion space

220: inner skin 230: outer skin

240: attachment portion 300: cotton sanitary napkin

310: insertion space 320: upper surface

330: lower surface 340: incision

Claims (13)

A disposable gel sheet for a cotton diaper which is inserted into a cotton diaper and is usable for a single use, Top and bottom sheets; Superabsorbent gels filled between the upper sheet and the lower sheet to increase the absorbency of the cotton diapers; And A cover sheet which integrally surrounds the upper sheet and the lower sheet so that the expanded gel is absorbed by the moisture and does not flow out of the upper sheet and the lower sheet, A surface which forms a plurality of spaces separated from each other by forming a plurality of seals between the lower sheet and the upper sheet filled with the gels, so that the gels do not flow out of the space through the seals. Disposable gel sheet for diapers. delete delete The method according to claim 1, The suture portion, Disposable gel sheet for cotton diapers formed by ultrasonic welding. The method according to claim 1, Disposable gel sheet for a cotton diaper when the gels filled in the space absorbs water and expands, the suture is opened to form a single space. delete The method according to claim 1, wherein the lower sheet and the upper sheet and the cover sheet, Disposable gel sheet for cotton diapers made of non-woven fabric. The panty type cotton diaper which formed the insertion space which the said disposable diaper sheet for cotton diaper according to any one of Claims 1, 4, 5 or 7 can insert. The surface sanitary pad in which the disposable gel sheet of any one of Claims 1, 4, 5, or 7 was inserted to form an insertion space which can be used. The method according to claim 9, wherein the cotton sanitary napkin, A top face and a bottom face are formed so that the insertion space is formed therein, and the upper surface is formed in the cut portion communicating with the insertion space, the surface sanitary pad that can be inserted into the disposable gel sheet through the incision. In the method of manufacturing a disposable gel sheet for a cotton diaper which is inserted into the cotton diaper and can be used for single use, Disposing superabsorbent gels on the upper surface of the lower sheet to increase the absorbency of the surface diaper; Covering the upper sheet on top of the lower sheet to form a gel sheet filled with the gels; Forming a plurality of seals formed between the lower sheet filled with the gels and the upper sheet to form a plurality of spaces separated from each other, such that the gels do not flow out of the space; And A method of manufacturing a disposable gel sheet for a cotton diaper, comprising covering the upper sheet and the lower sheet integrally with a cover sheet so that the expanded gel is absorbed by the moisture so as not to flow out of the upper sheet and the lower sheet. The method of claim 11, wherein the forming of the suture portion, Method for producing disposable gel sheet for cotton diapers using ultrasonic welding method. delete

Images