KR0163505B1 - Disposable diaper - Google Patents

Abstract

The present invention relates to a disposable diaper having a curved Y-joint, wherein the diaper is composed of an upper sheet and a liquid-impermeable lower sheet, an absorbent body is interposed therebetween, and an upper sheet and a liquid- Wherein the release tape is attached to the outer film surface of the liquid impermeable lower sheet and the releasing tape is attached to the upper sheet in a state in which the Y- And the release tape is curved (Z = 0) in the Y-bond so that the Y-bond width (2) is smaller than the width of the packing tape (ㅇ).

This prevents skin irritation or skin rashes and induces dispersion of force to prevent the parison tape from falling off the diaper flap.

Description

Disposable diapers with curved Y-joints

FIG. 1 is a top plan view of a disposable diaper having a curved Y-joint according to the present invention.

FIG. 2 is a top plan view of a bonded portion between a fasten tape fastening surface and a release tape fastening surface according to the present invention. FIG.

FIG. 3 is a cross-sectional view of a release tape applied to the lower portion of the parison tape and the upper portion of the upper sheet.

DESCRIPTION OF THE REFERENCE NUMERALS

1: upper sheet 2: liquid-impermeable lower sheet

2-1: film surface 2-2: non-woven surface

3: absorber 4: flap of leg

5: flap width of the leg portion 6: rear flap of the waist portion

7: back flap width at the waist portion 8: front flap at the waist portion

9: front flap width at the waist portion 10:

11: Release tape side

12: Adhesion between release tape and paison tape

13: Relief tape adhesive surface 14: Base surface of the false silicone tape

A: curved Y-coupled length

B: Length with adhesive or mechanical lock on the paison tape

C: Length without adhesive (finger tip)

:: Y-coupled width of curved line.

Ss: Cutting length of corner part of the paison tape

G: Length from the curved Y-joint to the pawson tape of the finger tip

ㅇ: Parson or relief tape width

Σ: Non curved part length of relief tape

:: Length combined a and b

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper having curved Y-joints, and more particularly to a disposable diaper having an improved adhesive surface (Y-bond) between a release tape attached to an upper sheet and a pacing tape attached to a lower sheet .

In general, a one-time diaper refers to a disposable sanitary article that absorbs excretion such as urinary feces due to a physiological action of a human being as a garment comprising a superabsorbent resin, a nonwoven fabric, a tissue, a band, a fluff pulp and a waterproof film.

A panty type diaper refers to a disposable diaper in which a waist flap is held in a folded form when worn, and a back flap of a waist portion is overlapped with the front flap to be engaged and fixed.

The band used as the double fastening means can be roughly divided into a front tape attached to the rear flap and a releasing tape for fixing the front tape and a releasing tape for fixing the pre- It can be divided into Y-bond and non-Y-bond depending on the adhesion between tape.

That is, when the release tape adhered surface attached to the inside of the back flap 6 of the waist portion and the patson tape adhered surface attached to the outside of the back flap 6 of the waist portion are adhered (Y-binding), wearer's diaper wear There is a disadvantage that both ends of the Y-joint are overlapped with each other to cause sharpness of the skin of the wearer and skin irritation or skin rash.

On the other hand, when there is no adhesive surface between the parson tape and the release tape (non-Y-binding), there is a disadvantage in that the parison tape is easily detached from the diaper flap at the time of receiving the force,

Therefore, it is an object of the present invention to provide a method and a device for preventing the wearer's skin from being crumpled and dispersing the applied force by differently adhering the patching tape to the release tape, thereby completing the advantages and disadvantages of the conventional two methods of preventing the parasitic tape from being detached from the diaper flap Disposable diaper.

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

First, as shown in FIG. 1, an upper sheet 1 and a liquid-impermeable lower sheet 2 are embedded, and an absorber 3 is interposed therebetween. The upper sheet 1 and the liquid- The permeable lower sheet 2 is extended in the lateral direction (width direction) to the outer periphery of the absorbent body 3 so that the bonded portion forms a flap width 5 of the leg portion with a small width at the leg portion and a wide width at the waist portion The back flap width 7 and the front flap width 9 of the waist portion are formed so that the flap 4 of the leg portion is brought into close contact with the body of the leg portion when worn and the back flap and the front flap 6 Are kept in an overlapped form when worn.

In addition, the Fasson Tape 10 and the reel tape 11 attached to the left and right sides of the back flap 6 of the waist portion are bonded in a curved Y-joint shape 12, It's like hell.

As shown in FIG. 2, the adhered portions between the patchon tape adhering surface and the release tape adhering surface are curved, and the width (d) at both ends is made smaller than the width (o) of the parison tape, Minimize skin irritation, such as non-Y-binding.

In this case, the end portion of the release tape can be adjusted within a range not larger than the width (ㅇ) of the relief or pawson tape from the curved (I = 0).

The edge length (f) of the parison tape is adjustable in a range that is not completely cut (f = 0) to less than the Y-joined length (a).

Similarly, the cutting width (ㅁ) of the edge portion of the parison tape can be adjusted within a range from the range (ㅁ = 0) which is not cut at all to a range smaller than the curved Y-joined width (.).

(C) may be curved to a portion (c) where no adhesive is applied so that the wearer can easily remove the paison tape from the release tape when the diaper wearer wears the disposable diaper. (A) ) Length.

FIG. 3 is a cross-sectional view in which relief tape is applied between the pressure-sensitive adhesive surface 10 of the packing tape and the upper sheet 1, and the lower layer of the liquid-impermeable lower sheet, that is, the nonwoven layer 2-2, may be omitted.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.

[Examples 1 to 2 and Comparative Examples 1-1, 1-2 to 2-1, 2-2]

[Example 1]

The Y-bonded adhesive surface 12 is curved and the curved Y-joined width d is not less than the width (o) of the paison or relief tape and is not engaged and the width and length of the corner portion of the paison tape ) Of the disposable diaper attached to the film surface (2-1) of the liquid-impermeable lower sheet,

[Example 2]

The Y-bonded adhesive surface 12 is curved and the curved Y-joined width d is not less than the width (o) of the paison or relief tape and is not engaged and the width and length of the corner portion of the paison tape ) Of the liquid-impermeable bottom sheet is attached to the non-woven surface (2-2) of the liquid-impermeable bottom sheet, the disposable diaper

[Comparative Example 1-1]

A disposable diaper having a non-Y-bonded adhesive surface and adhered to the film surface (2-1) of the liquid-impermeable lower sheet,

[Comparative Example 1-2]

The non-Y-bonded adhesive surface is in a straight line shape and the Y-coupled width (d) is equal to the width (o) of the pascal or release tape and the patchon tape is applied to the film surface (2-1) of the liquid- Attached disposable diaper

[Comparative Example 2-1]

A disposable diaper having a non-Y-bonded money adhering surface and a parison tape adhered to the nonwoven surface (2-2) of the liquid impermeable lower sheet

[Comparative Example 2-2]

The Y-bonded adhesive surface is in a straight line shape and the Y-bonded width (d) is equal to the width (o) of the patchon or release tape and the patchon tape adheres to the nonwoven surface (2-2) of the liquid- Disposable diapers

[Determination of skin irritation and tape detachment]

The disposable diapers manufactured in the above Examples and Comparative Examples were divided into five groups each for 100 persons, and the scores were scored as absolute scores with a score of 10, and the scores were averaged.

(0 points: very bad, ~ 5 points: normal, ~ 10 points: very good)

1. Skin irritation (including skin rash) and

2. Tape off

In this example, the false-tape is attached to the film 2-1 and the nonwoven fabric 2-2 of the liquid-impermeable lower sheet, and the curved Y-joint and the curved Y-joined width (d) In the case of Y-binding, the skin irritation showed a low score of 6.3 or less, and the non-Y- In the case of binding, tape drop was as low as 6.8 or less.

In other words, the conventional method can not satisfy both the skin irritation and the tape deterioration. As an improved method, a curved Y-joint and a curved Y-joint width (d) ㅇ) is smaller than the skin irritation, the tape can be solved both the root cause is the result.

Claims (4)

The upper sheet and the liquid-impermeable lower sheet are embedded, and the upper sheet and the liquid-impermeable lower sheet are extended to the outer side of the absorbent body and adhered to each other to form a flap. Wherein the release tape on the outer film surface of the liquid impervious lower sheet forms a Y-bond with the release sheet attached to the upper sheet, and the release tape is curved in the Y- (Z = 0) so that the Y-joining width (2) is smaller than the paden tape width (o) so that both ends are not engaged. The disposable diaper according to claim 1, wherein the parison tape has edge cutting widths and lengths (f). The disposable diaper according to Claim 1, wherein the attachment surface of the parison tape is attached to the nonwoven surface of the liquid-impermeable lower sheet (2). The disposable diaper according to claim 1, wherein the release surface of the release tape on the adhering surface has a linear shape (I) and the width thereof is smaller than the width (o) of the parison tape.