JPH1099371A - Disposable body fluid absorptive wear article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a shape holding means, which is to be used when wearing or rounding a disposable body fluid absorptive wear article, on that article. SOLUTION: Concerning a disposable diaper as one example of the disposable body fluid absorptive article, the shape holding means to be used when rounding that article is composed of an outer surface sheet 3 for the diaper and a band- shaped element 21 attached on the outer surface of the outer surface sheet 3. The outer surface sheet 3 is composed of unwoven fabric to which a member 41 on one side of a mechanical fastener composed of male and female members can be engaged/disengaged, and the band-shaped element 21 fixes its one terminal part on the sheet 3 and has the member 41 on one side of the mechanical fastener on the inner surface of its opposite side terminal part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable body fluid-absorbing wearing article such as a disposable diaper or a sanitary napkin, which is held in a required shape when worn or discarded. The article having means capable of doing so.

[0002]

2. Description of the Related Art It is well known to use a disposable diaper with an adhesive tape fastener or a mechanical fastener comprising a male (hook) member and a female (loop) member which engage and disengage with each other. It is also known to use these fasteners to roll up dirty diapers and the like. For example, in a diaper disclosed in Japanese Utility Model Laid-Open No. 5-39531, an adhesive tape is used to roll up the diaper. No. 4,869,724.
In the diaper disclosed in the publication, a mechanical fastener is used to round the diaper.

[0003]

When an article such as a diaper is worn or discarded, if the means for holding the article in a required shape is an adhesive tape fastener, the adhesive portion of the fastener can be compared everywhere. It has the advantage that it can be attached freely. However, in this fastener, when it is not used, a separator for temporarily fixing the adhesive portion to be peelable is necessary, and this separator is designed to facilitate the peeling and sticking of the adhesive portion. A relatively rigid plastic film or paper may be used. However, such separators can contribute to irritating the wearer's skin.

If the means for maintaining the shape is a mechanical fastener, a landing zone for fixing the fastener is required. However, there are various ways to round the diaper when it is discarded.
It is uneconomical to prepare large landing zones.

Further, if a dirty article is rolled and left to be fastened with these fasteners, the diameter of the rounded article gradually decreases, and the fastening of the fastener may actually be loosened. is there.

Therefore, the present invention relates to a wearing article,
It is an object of the present invention to enable a mechanical fastener to be fixed relatively freely without choosing a place.

[0007]

In order to solve the above-mentioned problems, the present invention is based on the premise that an inner sheet forming a contact surface with the skin and an outer sheet forming a non-contact surface with the skin are provided. And a shape holding means capable of holding a body fluid-absorbing wearing article capable of absorbing body fluid from the inner sheet in contact with the skin when wearing and / or discarding the article. And a disposable body fluid-absorbing wearing article having

[0008] On this premise, the present invention is characterized in that the shape holding means comprises:
A hook formed of a strip having a base end and a free end disposed on the outer sheet, wherein the outer sheet is formed of a nonwoven fabric, and substantially the entire outer surface of the nonwoven fabric is engaged with and disengaged from each other; A non-woven fabric capable of engaging and disengaging one member of a mechanical fastener comprising a member and a loop member, wherein a base end of the strip is fixed to an outer surface of the outer sheet, and a free end of the strip is provided. A portion having the one member of a mechanical fastener on a surface facing the outer surface and releasably engaging the outer surface, at least a portion between a base end and a free end of the strip. Is formed of a material having extensibility in the longitudinal direction of the strip.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a disposable body fluid-absorbing wearing article according to the present invention will be described below with reference to the accompanying drawings.

A pants-type disposable diaper 1 shown in FIG. 1 in a partially cutaway perspective view from the back side is an example of a disposable body fluid-absorbing wearing article. The diaper 1 includes a liquid-permeable inner sheet 2 forming a contact surface with the skin, a liquid-impermeable outer sheet 3 forming a non-contact surface, and a liquid-absorbing core interposed between the two sheets 2 and 3. 4. The diaper 1 has a front waist region (front body) 6, a rear waist region (back body) 7, and a crotch region 8 located between these two regions 6, 7. 7 are their side edge areas 11, 1
2 overlaps in a palm shape and joins, and the waist opening 13
And a pair of left and right leg surrounding openings 14. At the peripheral edges of the openings 13 and 14, a plurality of waist elastic members 16 and leg elastic members 17 are attached to at least one of the inner surfaces of the inner and outer sheets 2 and 3 at portions extending from the peripheral edge of the core 4. Joined in an extended state. A band-shaped fastening tape 21 extending in the vertical direction of the diaper 1 is disposed in a central portion of the rear waistline region 7 in the circumferential direction. The inner sheet 2 is a nonwoven fabric of polypropylene fiber and has a basis weight of 15 to 30 g /
m ² . The outer sheet 3 has a basis weight of 20 to 40 g / m ^2.
Inner layer 3A of polyethylene film having a basis weight of 20 to
An outer layer 3B of a nonwoven fabric made of polyethylene / polypropylene conjugate fiber having 30 g / m ² ,
The composite fiber is crimped. The core 4 is a mixture of ground pulp and superabsorbent polymer.

FIG. 2 is an end view taken along line II-II of FIG. 1 and shows the structure of the tape 21. Tape 21
The longitudinal direction (vertical direction) is composed of a lower end member 22, an upper end member 23, and an intermediate member 24 interposed between these two members 22, 23. The lower end member 22 is a tape 21
A first adhesive 26 is applied to the entire inner surface thereof, and is adhered to a lower end portion 27 of the intermediate member 24 in a first application area 26A of the adhesive 26, The second coating area 26B adheres to the outer surface of the outer layer 3B. The upper end member 23 constitutes a part of the free end of the tape 21, and the second adhesive 28 is applied to the entire inner surface thereof, and the intermediate member 24 is applied in the third application area 28 </ b> A of the adhesive 28.
The male member 41 of the mechanical fastener is adhered to the fourth application region 28B, and the holding film member 35 is adhered to the fifth application region 28C. In these application areas of the tape 21, the members 22 facing each other,
23, 24, 35, 41 and the outer sheet 3 are strongly adhered so as not to be substantially separated. The male member 41 of the mechanical fastener is, for example, one known under the trade name Velcro or Velcro, and is capable of engaging and disengaging with the crimped fiber forming the outer layer 3B of the outer sheet 3. In the drawing, the male member 41 is engaged with the outer layer 3B. The intermediate member 24 is extensible or elastically expandable and contractible in the longitudinal direction of the tape 21.

In the tape 21 constructed as described above, since a part of the upper end 32 is non-adhesive due to the presence of the film member 35, the male member 41 is peeled from the outer sheet 3 by holding the film member 35, and When pulled inward, the intermediate member 24 extends between the lower end portion 27 and the upper end portion 29 (see FIG. 1).

The lower end member 22 constituting the tape 21
For the upper end member 23, a substantially inextensible sheet material such as a plastic film or a nonwoven fabric is used. One example of the sheet material is a polyester film having a thickness of 0.02 to 0.3 mm. The intermediate member 24 can be stretched or elastically stretchable sheet material, more preferably, stretchable by 100 to 1500%, and the elastic recovery rate with respect to the stretch amount is in the range of 10 to 90%. An elastic sheet material is used. One example of this sheet material is an elastomer film having a thickness of 0.02-0.3 mm. The elastic recovery rate is determined by elongating a sheet piece having a width of 10 mm and a length of 50 mm to a required magnification within 5 seconds and holding it for 1 minute, and then releasing the stretching force and leaving it for another 1 minute. Calculated based on

FIG. 3 is a perspective view of the diaper 1 rolled using the tape 21. Dirty diaper 1 is inseam 8
From the front waist area 6 to the rear waist area 6 with the inner sheet 2 inside and the left and right side edge areas 11 and 12 cut open back and forth at their joints. Round towards Zone 7. Thereafter, the male member 41 is peeled from the outer sheet outer layer 3B by holding the tape 21 at the upper end portion 32 and pulling the tape 21 upward, and the intermediate member 24 is stretched to the required length and the diaper 1 is rolled.
And further fastened to the outer sheet outer layer 3B. Since the diaper 1 is entirely covered with the nonwoven fabric constituting the outer layer 3B, the male member 41 can be fixed anywhere. This means that the male member 41 can be fixed no matter how the intermediate member 24 is extended.

If the rolled diaper 1 is left as it is, the initial stress at the time of elongation is relaxed in the intermediate member 24, and the tape acts to peel the male member 41 from the outer sheet 3. The contraction force of 21 weakens. Therefore, the possibility that the male member 41 in the rolled diaper 1 is peeled off from the outer sheet outer layer 3B due to the contraction of the intermediate member 24 with the passage of time is reduced. However, since the state in which the tape 21 is applied is a state in which the tightening force on the diaper 1 is reduced, the rounded diaper 1 may be loosened, thereby causing leakage of dirt and odor. To avoid such a situation,
It is preferable that the material of the intermediate member 24 is not an extensible material that simply extends, but can maintain elastic elasticity over a long period of time.

In the diaper 1, the portion where the tape 21 is to be disposed can be freely selected. Assuming a method of rounding the diaper 1, the arrangement portion of the tape 21, the entire length of the tape 21, and the length of the extendable portion of the intermediate member 24 can be determined so as to correspond to the method. In the outer sheet 3, the inner layer 3A made of a plastic film prevents oozing and leakage of body fluid from the core 4, the outer layer 3B made of a nonwoven fabric gives the diaper 1 a cloth-like touch, and the male member 41 stops. The other party (female member) to wear. In such an outer sheet 3, when the nonwoven fabric is substantially liquid-impermeable, the use of a plastic film can be omitted. The nonwoven fabric may be any material as long as the male member 41 can be fixed, but the nonwoven fabric made of crimped fiber is particularly easy to fix the male member 41. Non-woven fabric
Although it is preferable to cover the entire outer surface of the diaper 1, the male member 4
It is not necessary to cover even a portion where there is almost no possibility of fixing 1. An example of such a portion is a wing portion of an open type (open type) diaper or a part thereof. In this sense, it can be said that the nonwoven fabric capable of fastening the male member 41 only needs to cover substantially the entire outer surface of the diaper 1.

FIG. 4 shows one embodiment of the present invention.
FIG. In the fastening tape 21 of the illustrated example, the non-stretchable and non-stretchable film member 35 and the male member 41 are attached to the inner surface of the upper end portion of the stretchable or stretchable intermediate member 24 used in FIG. And are attached. The upper end of the intermediate member 24 to which these are bonded is also substantially non-extensible and non-stretchable, so that the upper end is easily gripped and the male member 41 is easily disengaged. The lower end of the intermediate member 24 forms a substantially non-stretchable and non-stretchable base end by adhering to the outer sheet outer layer 3B via the adhesive 43. Such a tape 21 can also extend or contract vertically between both ends.

The tape 21 in the illustrated example can be widely used as a shape retaining means for disposable bodily fluid absorbent articles such as training pants, incontinent pants, sanitary napkins, bandages, etc., in addition to the diaper 1. .

[0019]

In the disposable body fluid-absorbing wearing article according to the present invention, the shape-holding tape used when rolling the article has extensibility or elasticity, which hinders wearing. This tape can be kept short so that it is not lost. Since the outer layer of the article is made of a non-woven fabric to which the mechanical fasteners constituting the tape can be disengaged, the tape having extensibility or stretchability can be applied to the outer surface of the article without being affected by the amount of elongation. Can be stopped anywhere.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a pants-type diaper.

FIG. 2 is an end view of a main part taken along line II-II of FIG. 1;

FIG. 3 is a perspective view of a rolled diaper.

FIG. 4 is a view similar to FIG. 2, showing an embodiment of the invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body-fluid-absorbing wearing article (disposable diaper) 2 Inner sheet 3 Outer sheet 3B Non-woven fabric (outer layer) 21 Strip (tape) 26B Base end (second application area) 32 Free end (upper end) 41 Mechanical fastener (male) Element)

Claims (4)

[Claims] 1. A body fluid comprising an inner sheet forming an abutting surface against the skin and an outer sheet forming a non-abutting surface against the skin, and capable of absorbing a bodily fluid from the inner sheet abutting the skin. A disposable bodily fluid absorbent wearing article having a shape maintaining means capable of holding the absorbent absorbent article in a required shape when worn and / or discarded, wherein the shape retaining means comprises: an outer sheet; A strip having a base end and a free end disposed on the outer sheet, wherein the outer sheet is formed of a nonwoven fabric, and substantially the entire outer surface of the nonwoven fabric engages and disengages from each other. One member of a mechanical fastener comprising a male member and a female member can be disengaged, and a base end of the strip is fixed to an outer surface of the outer sheet, and a free end of the strip is provided. Has the one member of the mechanical fastener on the surface facing the outer surface and removably engages the outer surface, at least a portion between the base end and the free end of the strip is provided. The said wearing article characterized by being comprised by the material which has extensibility to the longitudinal direction of the above-mentioned strip. 2. The wearing article according to claim 1, wherein the extensible material of the strip also has elastic contractility. 3. The wearing article according to claim 1, wherein the base end and the free end of the strip are made of a non-extensible material. 4. The wearing article according to claim 1, wherein the wearing article is one of a disposable diaper and a sanitary napkin.