JPS5919682Y2 - Diapers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape fastener for securing a diaper to an infant.

It is well known to use fixators using pressure-sensitive adhesive tape to secure the corners of diapers.

Pressure-sensitive adhesive tapes used to secure diapers to the wearer are mainly fixing tapes, and are called fastening tapes.

A release sheet or release tape is generally used to protect the adhesive side of the fastening tape until it is used. However, if the fastening tape is not folded when packaging the diaper, problems can easily occur on the diaper production line, so the release tape is Mainly used.

The release tape has an adhesive layer on one side, and the other side has been subjected to a peeling treatment so that the adhesive layer of the fastening tape can be peeled off and adhered.

Tape fasteners are provided in pairs on both sides near the longitudinal ends of the diaper, and generally a portion of the fastener tape is adhesively fixed to the back sheet of the diaper.

However, with this type of tape fastener, when the diaper is fixed to the wearer's body, the back sheet is pulled on both sides, and the diaper is pressed against the back of the wearer and tightly adheres to the wearer.

In this form, when the absorbent part of the diaper is not absorbing liquid, it is in close contact with the body and is in a preferable state, but when it absorbs drained liquid, the absorbent part is pressed from behind,
The absorbed fluid is pushed out onto the wearer's back skin, causing discomfort.

This discomfort due to drainage is more likely to be felt on the wearer's back than on the front, and is more likely to be felt when the wearer is awake than when asleep.

The inventor of the present invention has conducted extensive research in order to provide a tape fastener that eliminates the drawbacks of conventional tape fasteners and provides a diaper that is comfortable to wear.As a result, the inventor created a structure in which the force that pulls the fastening tape is transmitted only to the top sheet. Although the top sheet of the diaper comes into contact with the skin, the inventors discovered that a diaper that is comfortable to wear can be obtained by making the absorbent portion and the back sheet portion not come into close contact with the skin, and completed the present invention.

That is, the present invention is a tape fastener used for diapers, which is composed of a top sheet, a back sheet, and an absorbent layer located between these two sheets, and is composed of a fastening tape and a release tape each having an adhesive layer on one side. is attached at one end along the back side of the diaper to the inner surface, and the release tape is not attached to the edge of the back sheet of the diaper at the position where the fastening tape overlaps, and the above The adhesive side of the end of the release tape is bonded to the inner surface of the topsheet, leaving the end closest to the side, and is at least 2 mm away from the side of the diaper to the unadhered part of the fastening tape. To provide a diaper having the characteristics of a tape fastener of a diaper, which is bonded to the adhesive surface of the fastening tape, and the remaining adhesive surface of the fastening tape is peelably attached to the peel-treated surface of the north tape.

The diaper of the present invention has the above-described configuration of the tape fastener, so that the tension applied to the fastening tape pulls the top sheet of the diaper through the release tape, and no tension is applied to the back sheet, making it easy to wear. A comfortable diaper can be obtained.

The present invention will be explained in more detail below with reference to the drawings.

FIG. 1 is an external perspective view of the disposable diaper of the present invention, and FIG. 2 is a sectional view taken along the line A-A'.

Such disposable diapers include a fluid-permeable top sheet 2,
It consists of a fluid-impermeable back sheet 4 and an absorbent layer 3 located between these two sheets, and tape fasteners 1 are provided on both sides near the ends in the longitudinal direction.

Further, the back sheet 4 extends from the side surface of the absorbent layer 3 to the end of the top sheet 2 and wraps around the absorbent layer 3.

The tape fastener 1 consists of a fastening tape 5 and a release tape 6.

One end of the fastening tape 5 is adhesively fixed to the inside of the diaper along the edge from the back side until it wraps around the inside surface, and the release tape 6 is adhesively fixed to the end of the back sheet 4. Instead, it is adhesively fixed on the inner surface of the top sheet 2 of the diaper, leaving the edge near the edge.

The fastening tape 5 and the release tape 6 are placed at a position 7 at a distance of 1 or at least 2 mm from the side of the diaper.
The adhesive surfaces are joined and fixed together at point a, and part of the other end of the fastening tape 5 serves as a fixing part 8 when fixing the diaper to the body.
a and is peelably attached to the release surface of the release tape 6.

FIG. 3 is a cross-sectional view of the fastening tape 5 after being peeled off from the release surface of the release tape 6, before the adhesive surface of the fixing part 8a is crimped and fixed to the back sheet near the opposite longitudinal end. status is shown.

FIG. 4 is a cross-sectional view showing the state of the tape fastener when it is fixed for wearing, and the fixing part 8a is crimped and fixed on the back sheet near the longitudinal end on the opposite side, and is attached to the body. Although it is in a stretched state due to elastic repulsion, the force applied to the fixing part 8a is transmitted to the release tape 6 and therefore to the top sheet 2 through the bonding.
The top sheet 2 floats up as if peeled off from the absorbent layer 3 and comes into close contact with the body.

On the other hand, in addition to the width of the backsheet, the backsheet 4 has the side parts and the length of the part folded back onto the topsheet, and even if the fixed part 8a is pulled, it is longer than the topsheet 2, so it will sag. is not transmitted and does not come into close contact with the body.

FIG. 5 is a sectional view showing a state in which the tape fastener of the present invention is attached to a diaper in which a top sheet 2 and a back sheet 4 are glued together at the side surfaces.

For this type of diaper, simply 2mm from the side of the diaper.
Even if the fanning tape 5 and the release tape 6 are joined at the above-mentioned apart positions, when the fixed part 8b is pulled, the force is transmitted to both sheets because the top sheet 2 and the back sheet 4 are fixed at part a. As a result, the intended purpose cannot be achieved.

Therefore, in this type of diaper, it is necessary to join the fastening tape 5 and the release tape 6 at a position 7b inside the joining part a of both sheets, as shown in FIG.

The joining positions 7a and 7b of the fastening tape 5 and the release tape 6 may be any position as long as the force is transmitted only to the top sheet 2 when the fixing parts 8a and 8b are pulled, Considering the thickness, etc., it is best to position it at least 2 mm or more away from the side of the diaper, preferably 5 mm or more.

Also, it does not matter how far inward it is as long as it is 2 mm or more; if it is joined too far inward, the outer part will not come into contact with the body, which is undesirable, so it is desirable that it be within 20 mm, preferably within 10 mm.

The effect of the present invention, which provides a good feeling of wearing, can be achieved even if the fastening tape does not wrap around the inside edge of the diaper along the back edge and adhere to the inner surface, but is not joined to the release tape. Such tape fasteners cause problems such as peeling during manufacturing and packaging.

The tape fastener of this invention wraps the fastening tape inward from the back side and adheres it so that it overlaps the inner surface, so the fastener does not protrude from the diaper body, and there is only one zipper throughout the diaper. Since it is covered with fastening tape, problems such as turning it up will not occur.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the disposable diaper of the present invention;
The figure is a cross-sectional view taken along the line A-A', Figure 3 is a cross-sectional view showing the state of the tape fastener according to the present invention when the fastening tape is peeled off from the release tape, and Figure 4 is a cross-sectional view of the tape fastener according to the present invention while the diaper is being worn. FIG. 5 is a cross-sectional view showing the state of the tape fastener. FIG. 5 is a cross-sectional view showing the state of the tapered fastener of the diaper of the present invention, in which a top sheet and a back sheet are glued together at the side surfaces. 1... Tape fastener, 2... Top sheet, 3... Absorbent layer, 4... Back sheet, 5... Fastening tape, 6...
...Release tape.

Claims (1)

[Scope of utility model registration request] A tape fastener used for diapers, which is made up of a top sheet, a back sheet, and an absorbent layer located between these two sheets.It is made up of a fastening tape and a release tape, each having an adhesive layer on one side, and one end of the fastening tape is attached to the diaper. The release tape is glued from the back side along the side to the inner surface, and the release tape is not glued to the edge of the back sheet of the diaper at the position where the fastening tape overlaps, but on the side near the side. The adhesive side of the end of the release tape is adhered to the inner surface of the topsheet, leaving the edges intact, and is at least 2 mm away from the side of the diaper. The diaper is characterized by a tape fastener which is joined to the surface of the fastening tape, and the remaining adhesive surface of the fastening tape is made to peelably adhere to the release-treated surface of a release sheet.