JPH057220U - Disposable diapers - Google Patents

Abstract

(57) [Summary] [Purpose] To enhance the absorption capacity of the part where urine is likely to accumulate and to form a thin diaper that does not leak. In addition, it provides flexibility and a comfortable fit and prevents wet back of urine. It also prevents urine from spreading throughout the diaper and prevents skin irritation. [Structure] An upper absorbent layer 3 located on the surface layer 1 side and a lower absorbent layer 4 located on the leak preventive layer side are interposed between the liquid permeable surface layer 1 and the liquid impermeable leak preventive layer. To wear. The lower absorption layer 4 has a longer dimension in the length direction than the upper absorption layer 4, and the formation width is the same as or wider than that of the upper absorption layer 4, and the installation position of the upper absorption layer 3 on the lower absorption layer 4 The lower absorbent layer 4 is positioned so as to be offset from the central portion in the length direction to the ventral side in the worn state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is thin and has a good fit to the body, and it is possible to enhance the absorption capacity. This is related to the disposable diaper that was used.

[0002]

[Prior art]

  In a disposable diaper, urine is intensively discharged at the portion contacting the urination area, It had a defect that wet back was generated in the part and side leakage occurred.

[0003]   Therefore, conventionally, there has been a diaper that has attempted to enhance the absorption capacity of the portion that abuts the urinary portion. Exists For example, JP-A 61-602 or JP-A 61-167002 The invention described in the report is known. In these inventions, the absorbent layer is formed in one layer, The part of the absorbent layer that is in contact with the wall is thick, and the density and basis weight of this thick part are By making it larger than this, this part has a high absorption capacity.

[0004]   However, if the density or basis weight of the absorbent layer in the portion that contacts the urinary portion is increased, The urine cannot be absorbed quickly, causing side leakage, and the absorbent layer feels stiff and stiff. The feeling of wearing was poor.

[0005]   In addition, if the absorption layer is formed as a single layer without being provided as a plurality of layers, a thin When pressing, the entire press is applied, and the density of the thick part only increases, and urine Was slowed down and became stiff and stiff, resulting in poor wearing comfort. .

[0006]   Further, as in the diaper described in JP-A-62-32950, it contacts the urinary part. There is also one in which the partial absorption layer is provided in two layers. However, the diaper of the present invention Is the upper absorption layer located on the surface layer side and the lower absorption layer located on the leak prevention layer side. It is formed wider than. Therefore, urine is absorbed by the absorption layer on the upper side of a large area. Since it spreads, the entire diaper absorbs water, which causes diaper rash. Also on the upper side The urine diffused in the absorption layer causes wet back and is liable to cause skin irritation. It was.

[0007]

[Problems to be solved by the device]

  The present invention is intended to solve the above problems, and urine is easily collected. The absorption capacity of the part is increased to form a thin diaper that does not leak. Also absorbed Prevents a stiff and stiff feel of the layer, and provides a soft and comfortable fit and urine It is intended to prevent skin wetness by preventing wet back.

[0008]

[Means for Solving the Problems]

  In order to solve the above problems, the present invention has a liquid-permeable surface layer and a liquid-impermeable surface layer. Between the leakproof layer, the upper absorption layer located on the surface layer side and the lower absorption layer located on the leakproof layer side Layer and the lower absorption layer has a longer dimension than the upper absorption layer in the longitudinal direction. In both cases, the formation width is the same as or wider than that of the upper absorption layer, and the lower absorption layer of this upper absorption layer is formed. The position of installation on the collecting layer is from the center in the longitudinal direction of the lower absorbing layer to the ventral side in the worn state. It is located on one side.

[0009]   Further, the lower absorption layer may be compression molded by pressing.

[0010]   The absorption capacity of the upper absorption layer may be 30% to 100% of that of the lower absorption layer.

[0011]

[Action]

  Since the present invention is configured as described above, when the diaper is worn, the wearer The lower absorption layer is located on the entire crotch part of the The layer is located on the ventral side, so the upper absorbent layer is located on the urinary and abdominal parts .

[0012]   Compared with the lower absorption layer on the side of the leakproof layer, this upper absorption layer has a shorter dimension in the longitudinal direction, The formation width is the same as or narrower than that of the lower absorption layer. Therefore, the discharged urine Absorbs quickly in the upper absorption layer on the surface layer side and cannot be absorbed in this upper absorption layer. Only the urine is absorbed by the large lower absorption layer having sufficient absorption capacity. Therefore, The entire lower absorption layer will not get wet and cause diaper rash.

[0013]   In this way, the diaper is designed so that the upper part of the absorbent layer and the lower part of the diaper contact the abutment part and the abdominal part. Since it is laminated with the condensing layer, the urine may be ventral depending on the posture of the wearer such as crawling. Even if it concentrates on the urine, it can be reliably absorbed due to its large absorbing power, and the wet urine It is possible to wear it comfortably by preventing side leaks and side leaks.

[0014]   In addition, the diaper has an upper absorbent layer at a portion contacting the urinary part and the abdomen of the wearer. The lower absorption layer is laminated, and the upper absorption layer is formed smaller than the lower absorption layer. This Therefore, only the small area where the upper absorption layer and the lower absorption layer are stacked is thickly formed. Therefore, it does not significantly impair the fit when mounted.

[0015]   In addition, except for the upper absorption layer that contacts the urinary part and the abdomen, the absorption layers are the lower absorption layer. Because it is made of, the diaper is thin overall and has a stiff and stiff feel. Without it, the feeling of wearing becomes light, and good wearing becomes possible.

[0016]   Also, since the upper absorption layer on the surface layer side is miniaturized, the upper absorption layer is Even if wet back occurs due to force, etc. of the upper absorbent layer that comes into contact with the wearer's skin The area is small and it is possible to prevent skin rash due to contact with urine.

[0017]   In addition, if the lower absorption layer is compression-molded by pressing, the thickness of the diaper will be further reduced. It is possible to mold it and improve the fit.

[0018]   If the absorption capacity of the upper absorption layer is 30% to 100% of that of the lower absorption layer, the upper absorption layer will be A good balance between the absorption capacity of the collecting layer and the lower absorption layer, and good absorption efficiency of urine, etc. It

[0019]   If the absorption capacity of the upper absorption layer is less than 30% of that of the lower absorption layer, the upper absorption layer Has a poor absorption capacity, cannot absorb urine, and is prone to wet back.

[0020]   Also, if the absorption capacity of the upper absorption layer exceeds that of the lower absorption layer, , Urine stays in the upper absorbent layer, which has high absorption capacity, and becomes difficult to be absorbed in the lower absorbent layer. As a result, the upper absorbent layer, which comes into contact with the wearer's skin, is easily moistened with urine, causing skin irritation. Become.

[0021]

【Example】

  An embodiment of the present invention will be described below. (1) is a surface layer, which is a liquid-permeable nonwoven fabric or the like. The leak-proof layer (2) such as polyethylene, which is impermeable to liquid, between the surface layer (1) side The upper absorption layer (3) located on the side and the lower absorption layer (4) located on the side of the leak-proof layer (2). ing.

[0022]   This lower absorbent layer (4) is made of pulp, absorbent polymer, etc. It is pressed and molded by compression molding. And the lower absorption layer (4) is the surface It is formed in an area slightly smaller than the layer (1) and the leakproof layer (2), and the surface layer (1) and the surface layer (1) are formed on the outer periphery. And the end flaps (5) and side flaps (6) consisting of the leakproof layer (2) and It Moreover, the leg gathers (8) are attached to the side flaps (6) by interposing the elastic body (7). Is forming.

[0023]   Further, the upper absorption layer (3) located on the surface layer (1) side of the lower absorption layer (4) is made of pulp, It is made of absorbent polymer. The upper absorbent layer (3) is not pressed and is flexible. Is formed. The upper absorption layer (3) is longer than the lower absorption layer (4) in the longitudinal direction. The width is made the same as or narrower than that of the lower absorption layer (4), The absorbent layer (4) is located at the center of the absorbent layer (4) in the longitudinal direction and is offset to the ventral side in the worn state. It

[0024]   The absorption capacity of the upper absorption layer (3) is 30% to 100% of that of the lower absorption layer (4). It When formed in this way, the absorption capacity of the upper absorption layer (3) and the lower absorption layer (4) is balanced. Good lance property and good absorption efficiency of urine.

[0025]   In addition, (9) is a fastening tape, fixed to both sides of the back end flap (5), In the mounted state, it can be fixedly attached to the outer surface of the leak preventive layer (2) on the ventral side.

[0026]   When the diaper (10) is attached to the one configured as described above, the wearer's crotch part The lower absorption layer (4) is located on the whole, and further on the surface layer (1) side of this lower absorption layer (4) Since the partial absorption layer (3) is located on one side of the ventral side in the wearing state, The upper absorbent layer (3) is located on the abdomen.

[0027]   The upper absorption layer (3) is longer than the lower absorption layer (4) on the leak preventive layer (2) side in the longitudinal direction. Has a short dimension and is formed with the same width as or narrower than that of the lower absorption layer (4). The excreted urine is quickly absorbed by the upper absorption layer (3) on the surface layer (1) side, and Large lower absorption with sufficient absorption capacity for only urine that cannot be completely absorbed by the partial absorption layer (3) Absorb in layer (4). As a result, the entire lower absorbent layer (4) becomes wet and causes diaper rash. There is no such thing.

[0028]

[Effect of device]

  Since the present invention is configured as described above, it can be used for postures such as the crawling of the wearer. Therefore, even if urine is concentrated on the ventral side, it is possible to reliably absorb it due to its large absorption power. It can prevent wet back and side leakage of urine.

[0029]   Also, only the small area where the upper absorption layer and the lower absorption layer are laminated is thickly formed. Therefore, it does not seriously impair the foot when worn.

[0030]   In addition, the diaper is thin overall, there is no stiff feel and a feeling of wearing It becomes lighter and can be mounted well.

[0031]   Also, even if wet back occurs in the upper absorption layer due to external pressure, etc. The area of the upper absorbent layer that comes into contact with human skin is small, preventing skin rash due to contact with urine. It can be stopped.

[Brief description of drawings]

1 is a plan view

FIG. 2 is a sectional view taken along line AA of FIG.

[Explanation of symbols]

1 surface layer 2 Leak prevention layer 3 Upper absorption layer 4 Lower absorption layer

Claims (3)

[Scope of utility model registration request] 1. An upper absorbent layer located on the surface layer side and a lower absorbent layer located on the leak preventive layer side are interposed between the liquid permeable surface layer and the liquid impermeable leak preventive layer. The lower absorption layer has a longer dimension than the upper absorption layer, and the width of the lower absorption layer is the same as or wider than that of the upper absorption layer. A disposable diaper, which is characterized in that it is offset from the center in the longitudinal direction to the ventral side when worn. 2. The disposable diaper, wherein the lower absorbent layer is compression-molded by press working. 3. The absorption capacity of the upper absorption layer is lower than that of the lower absorption layer.
A disposable diaper that is characterized by 30% to 100%.