KR940011612B1 - Diaper - Google Patents

Abstract

The disposable diaper is designed to have front cover width narrower than that of back cover according to the user's body shape. The liquid permeable upper sheet, absorbent material and liquid non-permeable back sheet are the fundamental elements of diaper. The front cover width of the waist part and the fleshy inside of the thigh parts of absorbent goods are designed to have narrower width than that of the back cover in the ratio of 1:1.05 to 1:1.75.

Description

Disposable diapers

1 is a plan view of a disposable diaper according to the present invention.

The present invention relates to a disposable diaper, and more particularly, to a disposable diaper designed in front of the narrower than the rear width in consideration of the user's body shape.

Until now, disposable diapers have been developed based on their primary function of absorbing feces, and in recent years, the ability to deodorize unpleasant odors generated from feces and the prevention of rashes caused by wearing diapers and to develop comfortable products Attention is being paid.

In particular, the inventors of the present invention have focused on the comfort of disposable diapers. However, the baby's body shape is smaller than the rear body dimension in the center of the iliac (ilium). The back dimension is the same, the problem of excessively tightening the waist and thighs when worn, causing severe skin irritation.

In order to solve the above problems, the front width of the disposable diaper is designed to be narrower than the rear width at the thigh area and the waist area.

In a similar technique to the present invention, Pampers ^R (registered trademark of The Procter & Gamble Co., Ltd.), which is manufactured by The Procter & Gamble Co., USA, has designed the front width narrower than the rear width at the thigh part of the absorber. The width of the whole product to be preceded by this is the same as before and after, which is also not suitable for the human body structure.

Hereinafter, the present invention will be described in detail.

In the present invention, the waist and thighs of the entire product are designed such that the front width is narrower than the posterior width in the conventional disposable diaper including the liquid permeable top sheet, the absorbent body and the liquid impermeable back sheet as basic components, and the thigh of the absorbent body. By designing the part so that its front width is narrower than the back width, it is to provide a disposable diaper without tightening phenomenon and thus skin irritation.

According to the investigation of the inventors, the babies have a front body dimension and a rear body dimension based on the long bone, and the ratio of the rear body dimension to the front body dimension has the distribution shown in Table 1 below.

TABLE 1

Therefore, based on the above findings, the present invention designed the disposable diaper as shown in FIG. 1 so that the front dimension of the whole product and the absorbent body was narrower than the rear dimension. In particular, the waist portion of both ends of the disposable diaper was 1: 1.05 and 1: 1.75 so that the ratio of the front width A to the rear width A 'of the entire product was consistent with the body size of the babies. Anterior width B, which is the narrowest part of the thigh, and posterior width B ', which is the widest part, were also set to 1: 1.05 to 1: 1.75 according to the body size of the babies.

In addition, the front width C, which is the narrowest part of the thigh, and the rear width C ′, which is the widest part of the absorbent body, were also set to 1: 1.05 to 1: 1.75 according to the body size of the baby.

At this time, if the width ratio of the front width and the rear width is out of the above range and the front width is too small, leakage occurs laterally during urination, and if the front width is large, the waist and thigh tightening phenomenon will be ineffective.

The present invention will be described in more detail based on the following examples.

[Example 1 and Comparative Examples 1,2]

In general, disposable diapers are manufactured, where the ratio of the front width to the rear width of the entire product (A: A ') at the waist and the size ratio of the front width to the rear width of the entire product (B: B') at the thigh area; Disposable diapers were prepared by measuring the ratio of the front width and the rear width (C: C ′) of the absorbent body at the thigh area as shown in Table 1 below.

The disposable diapers prepared in Example 1 and Comparative Example 1-2 were used for 6 months for 100 infants 6-12 months old and then usability was determined according to the following criteria. At this time, the fastening occurrence rate was determined by considering the tightening phenomenon below [+] and shown in Table 2 below.

[Criterion for tightening phenomenon]

[++] No crush marks on lower back and thighs.

[+] Only crushed marks on lower back and thighs.

[±] Red spots on the lower back and thighs due to crushing on only one part.

[-] Red spots from crushing on both waist and thighs.

TABLE 2

As shown in Table 2, according to the present invention, the disposable diaper designed to have the front width of the entire product and the thigh area of the entire product and the absorbent body narrower than the rear width of the entire product is 20%, and the skin irritation is very low. However, there were significant skin irritation in diapers, which designed the waist and thighs of the entire product and the absorbent so that the front width and the back width were the same, and the diapers where the front width was narrower than the posterior width of the whole product and the absorbent body. .

Example 2-10 and Comparative Example 3-8

In general, disposable diapers are manufactured, where the ratio of the front width to the rear width of the entire product (A: A ') at the waist and the size ratio of the front width to the rear width of the entire product (B: B') at the thigh area; Disposable diapers were prepared by measuring the ratio of the front width and the rear width (C: C ′) of the absorbent body at the thigh area as shown in Table 3 below.

The disposable diapers prepared in Examples 2-10 and Comparative Examples 1-2 were used for 6 months for 100 infants 6-12 months old, and then the usability was determined according to the same criteria as in Table 2 above. The incidence of tightening was determined. In addition, the occurrence of leakage was determined according to the following criteria, and the occurrence rate of leakage was determined by considering that the occurrence of leakage was less than [+]. The results are shown in Table 3 below.

[Criteria of occurrence of leakage]

[++] Of the 100 people, no sampling was found.

[+] In the case of large amounts, there were more than 5 and less than 30 cases of glands.

Among the 100 patients, there were more than 30 and less than 50 glands.

[-] Out of 100 people had more than 50 glands.

TABLE 3

As shown in Table 3, the ratio of the front width and the rear width at the waist of the entire product is fixed to 1: 1.05, 1: 1.5 and 1: 1.75, and the ratio of the front width to the rear width at the thigh of the overall product is determined. In the diaper with the ratio of the front width to the back width in the thigh area of the whole product, the ratio of tightening was less than 20% and the incidence of leakage was less than 9%, but very good results were obtained. It was found that the twitter with a ratio of 1: 1.04 had a high incidence of tightening and that the ratio of 1: 76 was not suitable for use due to the high rate of glands.

[Examples 11-19 and Comparative Examples 9-15]

In general, disposable diapers are manufactured, but the ratio of the front width and the rear width of the entire product (A: A ') at the waist and the dimension ratio of the front width and the rear width (B: B') of the entire product at the thigh area; Disposable diapers were prepared by measuring the ratio of the front width and the rear width (C: C ′) of the absorbent body at the thigh area as shown in Table 3 below.

After the disposable diapers manufactured in Examples 11-19 and Comparative Examples 9-15 were used for 6 months for 100 infants 6-12 months of age, usability was determined according to the same criteria as in Table 1 above. The incidence of tightening was determined, and the incidence of leakage was determined according to the same criteria as in Table 2, and the incidence of leakage was determined. The results are shown in Table 4 below.

TABLE 4

As shown in Table 4, the ratio of the front width to the back width at the waist and thigh area of the entire product is fixed to 1: 1.05, 1: 1.5 and 1: 1.75, and the front width and the rear width at the thigh area of the absorbent body are fixed. When the ratio was changed, the diaper with anterior width and posterior width ratio of 1: 1.05 to 1: 1.75 at the thigh area of the absorbent had very good results, with the incidence rate of less than 16% and the incidence of leakage less than 5%. The diapers with a ratio of 1: 1.04 had a high incidence of tightening and the diapers with a ratio of 1.76 were found to be unsuitable for use due to the high rate of glands. In addition, the incidence of fastening was very high even when the ratio of the front width and the rear width at the thigh area of the absorber was 1: 1.5 and the ratio of the front width and the rear width of the waist and thigh area of the whole product was 1: 1.04.

Claims (4)

Disposable diaper which includes a liquid permeable top sheet, an absorbent body and a liquid impermeable back sheet as basic components, and the waist and thighs of the entire product are designed so that the front width thereof is narrower than the rear width, and the thigh portion of the absorbent body is Disposable diaper characterized in that the front width is narrower than the rear width. The disposable diaper according to claim 1, wherein the ratio of the front width of the waist to the back width of the entire product is in the range of 1: 1.05 to 1: 1.75. The disposable diaper according to claim 1, wherein a dimensional ratio of the narrowest width at the front and the widest width at the rear of the thigh portion of the entire product is from 1: 1.05 to 1: 1.75. 2. The disposable diaper according to claim 1, wherein a dimensional ratio of the narrowest width in the front and the widest width in the back at the thigh portion of the absorbent body is 1: 1.05 to 1: 1.75.