KR0138206B1 - A disposable diaper with barrier cuff of air pocket - Google Patents

Abstract

The present invention relates to a disposable diaper having a pocket for air storage in the coagulation band blocking portion, wherein the liquid permeable top sheet and the liquid impermeable back sheet are absorbers inserted therebetween. The curable band blocker is a disposable diaper that improves the fit by reducing physical irritation to the baby skin by containing a pocket to store air between the plies.

Description

Disposable diaper with air storage format in the cuff band cutout

1 is a plan view of a disposable diaper when the absorbent body is an hourglass in the present invention.

2 is a partial cross-sectional view of the A-A line in FIG.

3 is a partial cross-sectional view of the B-B line in FIG.

* Description of the symbols for the main parts of the drawings *

1: liquid impermeable back sheet, 2: liquid permeable top sheet,

3: liquid permeable side sheet, 4: absorber,

5: fastening means, 6: waist band,

7: coagulation band adhesion point, 8: coagulation band blocking part,

9: coagulation band end portion, 10: coagulation band elastic body,

11: side flap, 12: coagulation band end adhesion part,

13: pleated band folds, 14: waist,

15: crotch portion, 16: gang band,

17: pocket for air pockets 18: leg band,

19: hot melt, D: disposable diapers

The present invention relates to a disposable diaper having an air storage pocket in the coagulation band blocking portion, characterized in that it contains a pocket for air storage in the disposable diaper coagulation band blocking portion to reduce physical stimulation on the baby's skin.

Generally, disposable diapers refer to products that absorb and remove feces by physiological action, specifically diapers used by infants or adults.

The performance of the disposable diaper is primarily a functional aspect that focuses on the absorption rate and the amount of excretion due to physiological action, and there is no burden on wearing, the excretion does not leak out, and also the red spots or dermatitis on the skin when worn for a long time The diaper rash is divided into usability-free aspects, all of which require excellent performance.

While conventional disposable diapers have excellent absorption rate and urine absorption, there is a disadvantage in that diaper rash, such as skin rash generated by the combined action of water vapor and toxic gases accompanying excretion excretion.

As a fundamental cause of the diaper rash, the skin of the diaper wearing area is softened by continuous moisture. That is, the elastic backing of the plastic backsheet or leg cuff, which is usually used for disposable diapers, retains heat and moisture in the diaper, induces a sweat band and softens the skin.

In this warm, juicy environment, bacteria multiply and live with the nutrients of feces to break down urine and produce ammonia and irritants. Other factors that exacerbate skin rashes include coarse cloth, physical irritation such as scratches caused by tight disposable diapers, diaper laundry detergents, bleaches, chemical irritation from baby soaps, diarrhea and fever.

In order to solve such a conventional problem, Korean Patent Application Publication No. 90-5652 attempts to remove diaper rash, such as red spots, by adding a baby powder among the components of a disposable diaper, but the elements contained in the body fluids excretion on the skin Degradation by the existing skin flora can reduce the amount of ammonia, but diaper rashes such as skin irritation due to water vapor, toxic gas, physical irritation and chemical irritation cannot be fundamentally solved.

Separately, when manufacturing disposable diapers using breathable films, which are being commercialized recently, it is possible to remove urine and toxic gases and to control skin temperature than when using non-breathable films. It has been shown to be almost ineffective because it is not used in the tensioned state.

In addition, when the disposable diaper is worn for a long time, the temperature rise inside the diaper, sweat and urine excretion hydrate the baby skin, and the hydrated baby skin has a large skin contact surface at the distal end of the cuff band that prevents leakage of the disposable diaper. Excessive elasticity of the elastic yarn and the double-bonded nonwoven fabric and the film-laminated nonwoven fabric of the double layer of the cuff band blocking portion further deepen the physical irritation of the hydrated baby skin to promote skin rash.

Accordingly, the present invention provides a disposable disposable diaper composed of a liquid permeable topsheet, downy pulp and superabsorbent resin, and a liquid impermeable backsheet, and provides a cushioning function to the hydrated skin by providing a block containing air in the coagulation band. It is an object to provide a disposable diaper that reduces physical irritation with zoom, thereby reducing diaper rash.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 shows a plan view of the case where the absorbent body 4 is an hourglass in the disposable diaper D of the present invention.

Disposable diaper (D) may be applied to the hourglass type and the diaper without a distinction between the waist portion 14 and the crotch portion 15.

As in FIG. 1, the disposable diaper forms a solidifying band 16 from the liquid permeable topsheet 2 and the liquid permeable sidesheet 3, so that the absorbent body 4, the fastening means 5, the waistband 6 The leg band 18 is comprised.

In another embodiment, the liquid permeable top sheet 2 completely surrounds the absorber 4 and the coagulation band 16 may be formed using a separate member or top sheet 2.

The coagulation band 16 is formed at the adhesive point 7 of the coagulation band, the blocking portion 8 containing the air storage pocket 17, the distal end 9 containing the elastic body 10, and the excreted elastic body 10. The wrinkled portion 13 in which wrinkles are formed, and the portion other than the wrinkled portion 13 are composed of a solid band end adhesive portion 12 bonded to the upper sheet 2 on the absorber 4.

The coagulation band 16 blocks excretion not absorbed from the absorbent body 4 from leaking out of the coagulation band 16. In order to perform this function, the coagulation band 16 is made of double hydrophobic nonwoven fabric as a material of the coagulation band 16 to be completely bonded. Alternatively, a nonwoven fabric laminated with a film may be used. In such a case, blocking of excretion from the disposable diaper may bring about an increase in temperature by blocking air flow to the outside in the disposable diaper, causing a skin rash by the amount of water vapor of the excreta.

Therefore, the present invention is to provide a coagulation band 16 to the double layer to have a blocking function by using a hydrophobic non-woven fabric, to form a pocket to store the air, to reduce the physical irritation to the hydrated skin .

By forming the pocket 17 for air storage in the coagulation band blocking part 8, the cold air and the hot air inside the coagulation band 16 are circulated, and two layers of the coagulation band blocking part 8 are completely bonded. It is possible to reduce the physical irritation of the hydrated baby skin by maintaining a soft touch by the pocket 17 for air storage.

The distal end 9 of the coagulation band forms a shape to minimize the skin contact surface, and the elastic body 10 disposed on the distal end of the coagulation band 9 also has a modulus of elasticity of 150 to 250% so that it does not stick to the baby skin. desirable.

As the elastic body, natural rubber or Lycra elastic yarn is preferable, and an elastic film or polyurethane foam may be used.

The elastic yarn is bonded to the point 1 to 3mm from the distal end 9 of the coagulation band by using an adhesive, and the number of elastic yarns may be used more than one, but preferably one is disposed. Since the elastic chamber is excreted, the air storage pocket 17 point of the coagulation band blocking portion 8 starts, and at the coagulation band adhesion point 7, two layers of the coagulation band blocking portion 8 are formed by using an adhesive. (2) At the same time, the back sheet 1 is bonded to form an end point of the pocket 17 for air storage. The coagulation band adhesion point 7 blocks the excretion from leaking out from the absorber 4 and forms a pocket with the coagulation band end adhesive portion 12 and the elastic body 10 of the coagulation band crease 13 to excrete the excrement. Will be saved.

The working effects of the present invention will be described using the following examples and comparative examples.

Example 1

In a known disposable diaper in which a coagulation band is formed by an absorbent interposed between a liquid permeable top sheet and a liquid impermeable backsheet and a liquid permeable side sheet, the coagulation band has two layers of hydrophobic nonwoven fabric and is 2 mm along the end of the coagulation band. One elastic chamber is attached to the elastic modulus, and the elastic modulus is adjusted to 150 to 250% and the top sheet, the bottom lower sheet, and the coagulation band are bonded at the coagulation band adhesion point. The blocking portion of the coagulation band is double-ply fabricated to form a disposable diaper that does not adhere to each other to form a pocket for storing air.

Example 2

In the same manner as in Example 1, but two elastic yarns.

Example 3

Produced in the same manner as in Example 1, but adjusting the elastic yarn to 250 to 350%.

Example 4

In the same manner as in Example 2, but the elastic modulus of the elastic chamber is adjusted to 250 to 350%.

Comparative Example 1

In a disposable diaper composed of a liquid permeable top sheet and a liquid impermeable back sheet, an absorbent body inserted therebetween, wherein the coagulation band forms a hydrophobic nonwoven fabric in two layers, and the blocking portions of the coagulation bands are adhered to each other, and the coagulation band adhesion point is It is adhered on the backsheet and the topsheet along the diaper longitudinal direction between the absorbent body and the legband. One end forming the coagulation band block extends beyond the point of adhesion and adheres to each other. Elastic yarn is produced by adjusting the elasticity to 150-250% at the end of the corresponding band of the coagulation band in one strand.

Comparative Example 2

Produced as in Comparative Example 1, but the material of the curd band is a one-layer film laminated non-woven fabric, one end of the curd band end portion is fixed to the inner or outer portion of the blocking portion.

Comparative Example 3

Produced as in Comparative Example 1, but a hydrophobic non-woven fabric of one layer of the curing band, the end portion has a T-shaped skin contact surface and the elastic yarn is embedded in two strands, one end of the curing band to the inner portion of the curing band block It is fixedly glued.

With the disposable diaper manufactured as described above, to demonstrate the superiority of the present invention through the usability evaluation of the survey. Each product was directly worn by 100 babies from 3 months to 12 months for 21 days and the rash symptoms were determined as follows according to the rash of the baby's skin. The results are shown in Table 1.

Symptom determination

[++]: no diaper rash

[+]: Some red spots

[±]: red spots are strong and there is a rash

[-]: Red spots are strong and sores are widespread

Diaper rash rate is expressed as a percentage of the number of babies who exhibited diaper rash.

TABLE 1

As shown in Table 1, the diaper rash rate of the disposable diaper having a coagulation band containing the pocket for air storage was 4 to 12%, and the rash rate of the disposable diaper manufactured as a comparative example was 20 to 40%. Disposable diapers with clot bands contained were much lower in diaper rash rates.

The stiffness of materials of the coagulation band cutout of the two-ply disposable diaper of Examples 1 to 4 and the coagulation band cutoff of the comparative examples 1 to 3 were measured with a tensile strength measuring instrument (Instron). Shown in

TABLE 2

As shown in Table 2, the stiffness of the material showing the softness of the coagulation band blocking part was the same as that of Examples 1 to 4 and Comparative Example 3 as a single layer of hydrophobic nonwoven fabric. High levels indicate skin irritation.

In addition, the coefficient of friction for the coagulation band block was measured using a coefficient of friction measurement and compared with each other in Table 3.

TABLE 3

It was shown similarly in Examples 1 to 4 and Comparative Example 3, but appeared different in Comparative Examples 1 and 2 and higher than Examples 1 to 4.

Therefore, Comparative Examples 1 and 2 can be seen that the degree of physical irritation in the hydrated skin can be improved to improve the skin rash, which is proved to increase the diaper rash rate in Table 1.

Therefore, the present invention includes a coagulation band containing an air storage pocket to exchange the air inside the diaper with the outside and impart a cushioning function to the hydrated skin, thereby reducing physical stimulation and reducing skin rash. Could.

Claims (7)

Liquid-permeable topsheet, liquid-impermeable backsheet Absorbents inserted between them In a conventional disposable diaper with a coagulation band formed of a separate liquid-permeable sidesheet, the coagulation band block is doubled so that air can be stored between the plies. Disposable diaper having a pocket for air storage in the coagulation band blocking, characterized in that it comprises a pocket. 2. The air storage pocket of claim 1, wherein the pocket for air storage, from the excretion point of the coagulation band elastic body to the point at which the coagulation band side sheet is adhered to the back sheet or the top sheet is not bonded to each other to store air. Disposable diaper having a pocket for air storage in the coagulation band blocking portion, characterized in that it comprises a pocket. 3. The disposable diaper according to claim 2, wherein the elastic body is disposed within a maximum of 1 to 3 mm from the distal end. 4. The disposable diaper according to claim 2 or 3, wherein the elastic body is formed by disposing at least one or more elastic yarns. 4. The disposable diaper according to claim 2 or 3, wherein the elastic body is formed by disposing at least one or more elastic films. The disposable diaper according to claim 2 or 3, wherein the elastic body is formed by disposing at least one or more elastic foams. The disposable diaper according to any one of claims 2 to 3, wherein the elastic modulus of the elastic body is 250 to 350%.