JP2003180750A - Structure of immovably attaching part for diaper and diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of an immovably attaching part for a diaper and a diaper which hardly moves out of place or comes off, reduces marks left by the diaper due to the movements of a wearer, and can be attached and removed easily. <P>SOLUTION: The structure of the immovably attaching part of the diaper 1 comprises an immovably attaching tape 3 attached to both side edges of a back side part 2b of a main body 2 of the diaper to protrude to the side and a tape 6 to be attached which is attached to a front side part 2c of the main body 2 of the diaper. An allowance 3b is provided between a securing part 3a to be fixed to the diaper 1 and an immovably attaching member part 3c where a fastening tape (an immovably attaching member) 31 is provided. When D (mm) represents a distance from the securing part 3a to the immovably attaching member part 3c, and W (mm) represents a width of an end part on the side of the securing part 3a of the immovably attaching member, D=15 to 20, and D<W<2D. The immovably attaching tape 3 is formed to be tapered so that its width becomes narrower toward an end part 3d, and the tapered angle θ needs to satisfy 0<θ<4°. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening structure for a disposable diaper and a disposable diaper, each of which is composed of a fastening portion and a receiving portion to which the fastening portion can be locked.

[0002]

2. Description of the Related Art In a conventional paper diaper, a fastening portion and a fastening portion which are formed by tapes or the like which are provided so as to project laterally from the left and right sides of the back side of the paper diaper for wearing on a wearer. And an adherend provided on the abdominal side of the diaper so as to fix the diaper. A fastening member and a receiving member that can be fastened and locked to each other, such as a surface fastener, are provided on the fastening portion and the receiving portion. When attaching the paper diaper to the human body, the abdomen and the back of the paper diaper are applied to the abdomen and back of the wearer, and then the fastening portions are abdominal from both the left and right sides of the wearer. The paper diaper is fixed by wrapping the diaper and locking it on the abdominal adherend. By securely fixing the paper diaper with such a fastening structure, the paper diaper will not easily come off or loosen even if the wearer moves around.

[0003]

However, when the wearer of the diaper moves about, a diaper mark may be formed around the legs of the wearer near the locking position between the fastening portion and the adhered portion of the diaper. is there. This is because the abdominal part and the dorsal part of the paper diaper are strongly fixed by the fastening part and the adhered part, so that when the wearer moves, a load is applied around the legs near the locking position, It is thought that this is due to pressure. In such a case, the wearer of the paper diaper is not likely to move, and rubbing may occur at the place where the diaper marks are present, so improvement is necessary. Further, it is preferable that the disposable diaper can be used without coming off during wearing, but on the other hand, it is desirable that it can be easily attached to and detached from the wearer. Since the paper diaper is attached and detached by attaching and detaching the fastening part (to and from the adhered part), it is required that the fastening part and the adhered part have sufficient fastening force and that they are easily removable. To be

An object of the present invention is to secure a diaper without the diaper being displaced or detached, preventing the wearer of the diaper from leaving a diaper mark, and easily attaching and detaching the diaper. It is to provide a partial structure and a disposable diaper.

[0005]

[Means for Solving the Problems] In order to reduce the imprint on the wearer due to a paper diaper, for example, if the fastening portion is made smaller to reduce the fixing degree of the paper diaper, the fastening force of the fastening portion becomes weaker. And the paper diaper will slip or come off. Therefore, as a result of the study by the present inventors, a predetermined space is provided between the fastening part and the fastening member (for example, a surface fastener) at the back side portion of the paper diaper, and the fixing is performed. By setting the width of the fastening portion within a predetermined range with respect to the distance between the location and the fastening member, the fastening force does not become weaker and the trace of the diaper can be reduced. It turns out that the structure can be realized.

That is, the invention according to claim 1 for solving the above-mentioned problems is, for example, as shown in FIG.
At both edges of the back side (back side portion 2b) of the main body (2) of the diaper,
A fastening portion (fastening tape 3) provided so as to project laterally and provided with a fastening member (fastening tape 31).
And an adherend (adhesive tape 6) provided on the abdominal side (abdominal side 2c) of the main body of the disposable diaper and provided with an adherend (fastening tape 61) to which the fastening member is detachable. In the fastening part structure of the paper diaper (1), the fastening part is provided between a fixing part (3a) fixed to both back side edges of the paper diaper body, and the fixing part and the fastening member. A play portion (3b), and a tip portion (3d) from the tip end side of the fastening portion to the tip of the fastening portion of the fastening member,
When the distance between the fixed portion and the fastening member is D (mm) and the width of the end portion of the fastening member on the fixed portion side is W (mm), D = 15 to 20, and , D <W <2D.

According to the first aspect of the present invention, since the play part is formed between the fixing part and the fix member in the fastening part, the disposable diaper is worn by the wearer, A play can be formed between the fixed portion of the fastening portion and the fastening portion of the adhered portion. Therefore, the degree of fixation between the ventral side portion and the back side portion of the paper diaper is relaxed, and the paper diaper easily deforms following the movement of the wearer, so that the load applied to the wearer's legs is reduced. Also, the distance D (mm) from the fixed part to the fastening part is 15
To 20 and the width W (mm) of the end of the fastening member on the fixed side.
By setting the size so that D <W <2D, a sufficient fastening force can be exerted on the fastening portion. Therefore, it is possible to prevent the disposable diaper from coming off during wearing and reduce the traces of the disposable diaper caused by the wearer moving around.

In the structure of the fastening portion of the disposable diaper, the tip portion is formed at the tip of the fastening portion as in the first aspect of the invention, and the fastening portion has a width from the play portion to the tip portion. If the taper is formed so as to be narrow, the tip of the fastening portion can be easily picked up with a fingertip, and the work of attaching and detaching the disposable diaper can be facilitated. However, even if formed in this way, if the taper angle is too large, the area of the locking member becomes small, the fastening force decreases, and the tip becomes difficult to pinch.

Therefore, in the invention according to claim 2, in the fixing part structure of the paper diaper according to claim 1, the fixing part is tapered so that the width becomes narrower from the play part to the tip part of the fixing part. And the taper angle θ of the fastening portion is 0 <
It is characterized in that θ <4.

The taper angle θ of this fastening portion is as shown in FIG.
As shown in (b), it is an angle at which the side of the fastening portion formed in a taper shape is inclined with respect to the side of the fastening portion when the width is constant. According to the second aspect of the present invention, by setting the taper angle of the fastening portion to 0 <θ <4 degrees, the fastening member can exert a sufficient fastening force, and the tip portion of the fastening portion. Becomes a shape that is easy to pick with your fingertips.
Therefore, the attachment / detachment work of the fastening portion can be facilitated, and the paper diaper can be prevented from coming off during attachment, which is preferable.

The invention according to claim 3 is a paper diaper provided with the fastening portion structure according to claim 1 or 2. According to the third aspect of the present invention, the fastening portion and the adhered portion are fastened with a sufficient fastening force, and the degree of fixation between the ventral side portion and the back side portion of the disposable diaper is relaxed. Therefore, it is possible to reduce the load applied to the wearer's legs and to prevent the diaper from being traced while preventing the paper diaper from coming off during wearing. Further, the fastening portion is formed in a taper shape from the play portion to the tip portion, and the taper angle θ of the fastening portion is 0 <
When θ <4, a sufficient fastening force can be exerted on the fastening member, and the tip of the fastening portion has a shape that can be easily picked by a fingertip. Therefore, the work of attaching and detaching the fastening portion is facilitated, and the diaper is prevented from coming off during attachment, which is preferable.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the disposable diaper 1 having the fastening portion structure of the present invention will be described. As shown in FIGS. 1 and 2, the paper diaper 1 includes a paper diaper main body 2, a fastening tape 3 (fastening portion), an absorber 4 for absorbing watery components of excrement, and an elastic member. 5 and an adhesive tape 6 (adhesive portion). 2. FIG. 2 is a diagram showing the inner surface side (the contact surface side with the skin when worn) of the developed paper diaper 1 shown in FIG.

The main body 2 of the diaper is composed of a liquid-permeable sheet having an inner surface made of a nonwoven fabric or the like and an outer surface having a liquid-impermeable sheet made of a polyethylene sheet or the like. The central portion of the main body 2 of the disposable diaper is formed to have a small width, and the left and right side portions thereof are leg-surrounding portions 2a, 2a which surround the legs when the disposable diaper 1 is worn. Further, in the main body 2 of the diaper, one end portion sandwiching the leg surrounding portions 2a, 2a is a back side portion 2b and the other end portion is a ventral side portion 2c. Elastic leg members 5 are provided on the leg portions 2a, 2a, the back side portion 2b, and the abdominal side portion 2c of the paper diaper body 2 so as to extend along the sides of the paper diaper body 2. Absorber 4
Is installed between the liquid-permeable sheet on the inner surface side and the liquid-impermeable sheet on the outer surface side in the main body 2 of the diaper.

On the left and right sides of the back side portions 2b, 2b of the main body 2 of the diaper, fastening tapes 3, 3 made of a non-woven fabric are provided so as to project laterally. Figure 2
As shown in (b), one end of the fastening tape 3 is
A fixing portion 3a for fixing to the main body 2 of the paper diaper is formed, and at the other end, a tip portion 3d for picking with a fingertip when the work of attaching and detaching the paper diaper 1 is formed. And
A fastening tape 31 (fastening member), which is one locking element of the surface fastener, is provided between the fixed portion 3a and the tip portion 3d at a predetermined distance D from the fixed portion 3a. Fastening tape 31 in the fastening tape 3
The portion provided with is the fastening member portion 3c, and the portion between the fastening member portion 3c and the fixed portion 3a is the play portion 3b.

From the play portion 3b of the fastening tape 3 to the tip portion 3
The width is gradually reduced toward d. Both sides of the play portion 3b to the tip end portion 3d are referred to as taper portions 3e and 3e. The distance D between the fixing portion 3a and the fixing member portion 3c of the fastening tape 3 and the width of the end portion of the fastening tape 31 on the fixing portion 3a side (the width of the end portion of the fastening member on the fixing portion side). The size of W (see FIG. 2B),
The inclination angles of the tapered portions 3e and 3e will be described later. The fixing tapes 3 and 3 are provided from the play portion 3b to the tip portion 3d.
The fixing portion 3a is fixed to the side of the back side portion 2b of the main body 2 of the diaper so that the parts up to the side project from the main body 2 of the diaper.

On the outer surface of the ventral side portion 2c of the main body 2 of the diaper,
The adhesive tape 6 provided with a fastening tape 61 (adhering member) which is the other locking element of the surface fastener is provided. The fastening tape 61 and the fastening tape 31 of the fastening tape 3 are in a detachable relationship with each other.

When the paper diaper 1 is worn on a human body such as an infant, the legs 2a, 2a are sandwiched between the legs of the wearer, the back side 2b is on the back of the wearer, and the abdomen 2c is on the back side. Apply to the abdomen. Then, the fastening tapes 3 are wrapped around the wearer's left and right sides to the abdomen, and are fastened to the adherend tape 6 on the abdominal side portion 2c. When the fastening tape 3 and the adherend tape 6 are locked by fastening the fastening tape 31 and the fastening tape 61, which are locking elements,
The disposable diaper 1 is fixed to the wearer. This fastening tape 3
The structure for fixing the paper diaper 1 constituted by the adhesive tape 6 and the adherend tape 6 is referred to as a fastening portion structure.

The shape of the fastening tape 3 constituting the fastening structure will be described in more detail. The fixed part 3a described above.
And the distance between the fastening member portion 3c and the fastening member portion 3c is D (mm), and the width of the end portion of the fastening member on the fixed portion side is W (mm), D = 15 to 20 , And the size is set so that D <W <2D. When the distance D is smaller than 15 mm, the play between the fixing portion 3a of the fastening tape 3 and the fastening member portion 3c becomes small when the paper diaper 1 is attached, and the back side portion 2b and the abdominal side portion 2c of the paper diaper body 2 are separated. Since the degree of fixation of is increased, when the wearer moves around, marks are likely to occur around the legs. When the distance D is larger than 20 mm, the play between the fixing portion 3a of the fastening tape 3 and the fastening member portion 3c is large, and the fastening tape 3 is easily displaced when the diaper 1 is attached, and the fastening tape 3 is easily removed. Furthermore, if the width W is smaller than the interval D, the fastening force becomes weaker, and it becomes easy to come off during mounting.
The width of the tip portion 3d of the fastening tape 3 is also narrowed, and it becomes difficult to pinch it during the attachment / detachment work. Further, when the width W is larger than twice the distance D, the degree of fixation between the back side portion 2b and the abdominal side portion 2c of the main body 2 of the diaper becomes high, and the wearer's movement is easily applied when the paper diaper 1 is attached. , Marks around the legs are likely to occur.

On the other hand, with respect to the inclination angle of the taper portion 3e of the fastening tape 3, the angle formed by the tapering side of the fastening tape with respect to the side of the fastening tape when the width is constant. Is the taper angle θ. This taper angle θ
Is 0 <θ <4 degrees. When θ is 4 degrees or more, the area of the fastening tape 31 in the fastening member portion 3c becomes small and the fastening force is reduced. In addition, the area of the tip portion 3d also becomes small, making it difficult to pinch. In addition, 0 <
When θ is set, when the fastening tape 3 is manufactured, the fastening tape 3
The shape of the fastening tape 3 can be formed by cutting the central portion of the base tape (material tape of the fastening tape) having a width corresponding to the length of 1 to a meandering curved shape. But θ = 0
In such a case, since the base tape is cut into a U-shaped straight line to be manufactured, the cutting cannot be performed smoothly, the cutting is shocking, and the cutting blade is easily worn. Therefore, it is preferable to set the taper angle θ to 0 <θ <4 degrees from the viewpoint of manufacturing the fastening tape 3, and the fastening tape 3 thus formed can exhibit sufficient fastening force. The tip portion 3d can be formed into a shape that can be easily picked up when attaching or detaching.

Next, the state where the wearer wears the disposable diaper 1 will be described. The paper diaper 1 is usually in a state in which the wearer is lying down, etc., around the waist and legs of the wearer,
The fastening position of the fastening tape 3 to the adherend tape 6 is adjusted and locked so that the fastening tape 3 is in an appropriate state without looseness or tightness. In this state, the elastic elastic member 5 provided in the main body 2 of the diaper is appropriately stretched around the waist and legs.

When the wearer of the disposable diaper 1 moves around, the posture changes greatly around the waist and legs. At this time, in the paper diaper 1, in the fastening portion structure, the fixing portion 3 of the fastening tape 3
Since the play portion 3b is provided between the a and the fastening member portion 3c at the interval D as described above, and the taper portion 3e is formed at the inclination angle as described above, the fastening tape 3 is formed.
With the adhesive tape 6 fixed to the adherend tape 6 with a sufficient fixing force, the degree of fixing between the back side portion 2b and the abdominal side portion 2c of the main body 2 of the diaper is relaxed. Therefore, the shape of the disposable diaper 1 appropriately changes following the movement of the wearer. Therefore, even if the wearer moves around, it is possible to reduce the load on the legs and the pressure on the legs and the diaper marks. Also, the wearer can reduce the difficulty of moving because the back side portion 2b and the abdominal side portion 2c of the main body 2 of the diaper are strongly fixed. Further, since the fastening tape 3 can exert a sufficient fastening force, it is possible to prevent the paper diaper 1 from being displaced or deviated at the time of wearing. Further, since the taper portion 3e having an appropriate inclination angle is formed on the fastening tape 3,
The tip 3d of the fastening tape 3 is easy to pick up, and the work of attaching and detaching the paper diaper 1 is easy.

The present invention is not limited to the above embodiment. For example, the fastening tape and the adherend tape may be composed of a plastic tape or the like having a pasty component as a fastening element. Further, the fastening tape is supposed to be fixed to the outer surface side of the main body 2 of the diaper, but it may be fixed to the inner surface side or between the liquid permeable sheet and the liquid impermeable sheet constituting the inner surface and the outer surface. You may Further, the shape of the tip of the fastening tape may be a rounded triangular shape as shown in the figure, or may be a trapezoidal shape or the like, which can be appropriately changed. Further, in addition to forming the fastening part structure with tape such as fastening tape, at least one of the top sheet and the back sheet of the main body of the diaper is formed to extend laterally from the back side of the main body of the diaper. You may In such a case, the base end portion of the extended portion of the sheet is used as the fixing portion of the fastening portion, the distance from the base end portion to the fastening member is D, and the width of the fastening member on the base end portion side is W. , You can set the size.

[0023]

EXAMPLE In this example, in the fastening portion structure of the paper diaper 1 in the above-described embodiment, the distance D between the fixing portion 3a of the fastening tape 3 and the fastening member portion 3c is 17 mm, and the fastening member is fixed. The width W of the end portion on the side of the portion is 25 mm, and the inclination angle of the tapered portion 3e is 3.5 degrees. This paper diaper 1 and artificial urine 2
After absorbing 10 ml, it was attached to a walking dummy. Then, the dummy doll is made to walk for 1000 steps, and the frequency at which the fastening tape on the disposable diaper contacts the dummy doll (number of times / 1000 steps x 100%), and the size of the deviation of the disposable diaper immediately after the diaper is worn. Sato was measured. As a result, the contact frequency of the diaper at the fastening tape was 0%, and the deviation was 45 mm.

<Comparative Example 1> In this comparative example, in the fastening portion structure of a paper diaper, the fastening tape 3 is provided with a distance D10 mm between the fixing portion 3a and the fastening member portion 3c, and the end portion of the fastening member on the fixing portion side. The width of the portion is W35 mm, and the inclination angle of the tapered portion 3e is 6.0 degrees. Then, in the same manner as in the above-mentioned embodiment, 210 ml of artificial urine is absorbed in a paper diaper, and the walking doll is attached to allow 1000 steps to walk, and like the embodiment, the contact frequency of the paper diaper at the fastening tape portion and immediately after the attachment. The size of misalignment of the paper diaper after walking was measured. as a result,
The contact frequency was 30%, and the size of the deviation was 30 mm.

<Comparative Example 2> In this comparative example, in the fastening portion structure of a paper diaper, the fastening tape 3 has a distance D25 mm between the fixing portion 3a and the fastening member portion 3c, and the end portion of the fastening member on the fixing portion side. The width of the portion is W25 mm, and the inclination angle of the tapered portion 3e is 6.0 degrees. Then, as in the above-mentioned example, 210 ml of artificial urine was absorbed in a paper diaper, and it was attached to a walking dummy and made to walk for 1000 steps. The size of the deviation was measured. As a result, the contact frequency is 5%,
The size of the deviation was 70 mm.

Comparing the above example with the comparative example, in the fastening tape 3, when the distance D between the fixed portion 3a and the fastening member portion 3c is 10 mm, the deviation of the paper diaper is small, but at the fastening tape portion. It is easy for the disposable diaper to come into contact. Further, if the distance D between the fixing portion 3a and the fastening member portion 3c is widened to 25 mm, the frequency of contact of the diaper at the fastening tape portion is reduced, but the deviation due to the wearer's walking is increased, which is inconvenient. . The present embodiment is set to a size to which the fastening portion structure of the present invention is applied, the degree of deviation of the paper diaper due to walking is a range that does not affect the wearing, and the contact of the paper diaper at the fastening tape location is also It has not occurred. Therefore, the fastening structure of the paper diaper of the present invention can reduce the trace of the paper diaper around the legs due to the movement of the wearer, and there is no problem with the deviation of the paper diaper at the time of wearing, and it is preferable. I understand.

[0027]

According to the first aspect of the present invention, since the play part is formed in the fastening part between the fixing part and the fastening member, the paper diaper is worn by the wearer. Thus, a play can be made between the fixing portion of the fastening portion and the fastening portion of the adhered portion. Therefore, the degree of fixation between the ventral side portion and the back side portion of the paper diaper is relaxed, and the paper diaper easily deforms following the movement of the wearer, so that the load applied to the wearer's legs is reduced. Also, the distance D (mm) from the fixed part to the fastening part is 15
To 20 and the width W (mm) of the end of the fastening member on the fixed side.
By setting the size so that D <W <2D, a sufficient fastening force can be exerted on the fastening portion. Therefore, it is possible to prevent the disposable diaper from coming off during wearing and reduce the traces of the disposable diaper caused by the wearer moving around.

According to the second aspect of the present invention, by setting the taper angle of the fastening portion to 0 <θ <4 degrees, it is possible to exert a sufficient fastening force on the fastening member, and also the fastening portion. The tip of the will be shaped so that it can be easily picked up with your fingertips. Therefore, the attachment / detachment work of the fastening portion can be facilitated, and the paper diaper can be prevented from coming off during attachment, which is preferable.

According to the third aspect of the invention, the fastening portion and the adhered portion are fastened with a sufficient fastening force, and the degree of fixation between the ventral side portion and the back side portion of the paper diaper is relaxed. . Therefore, it is possible to reduce the load applied to the wearer's legs and to prevent the diaper from being traced while preventing the paper diaper from coming off during wearing. Further, when the fastening portion is formed in a tapered shape from the play portion to the tip portion and the taper angle θ of the fastening portion is 0 <θ <4, the fastening member can exert a sufficient fastening force. In addition, the tip of the fastening portion has a shape that can be easily picked by a fingertip. Therefore, the attachment / detachment work of the fastening portion can be facilitated, and the paper diaper can be prevented from coming off during attachment, which is preferable.

[Brief description of drawings]

FIG. 1 is a perspective view of a paper diaper to which a fastening portion structure of the present invention is applied.

FIG. 2A is a diagram showing an inner surface side of the paper diaper of FIG. 1 in a developed state, and FIG. 2B is a diagram showing a fastening tape attached to the main body of the paper diaper.

[Explanation of symbols]

1 paper diaper 2 Paper diaper body 2b Dorsal part 2c ventral side 3 Fastening tape (fastening part) 3a Fixed part 3b Play part 3c Fastening member part 3d tip 31 Fastening tape (fastening member) 6 Adhesion tape (adhesion part) 61 Fastening tape (adhered material) D Distance between fixed part and fastening member W Width of the end of the fastening member on the fixed side θ taper angle

Claims (3)

[Claims] 1. A fastening portion provided at both side edges of the back side of the disposable diaper body so as to project laterally, and a fastening member is provided, and a fastening portion provided at the ventral side of the disposable diaper body. In the fastening part structure of a paper diaper, which is configured by: and an attaching part provided with a detachable attaching member, the fastening part is fixed to both back side edges of the main body of the diaper. A play portion between the fixing portion and the fastening member, and a tip portion of the fastening member from a tip end side end portion of the fastening member to a tip of the fastening portion; When the distance from the fastening member is D (mm) and the width of the end of the fastening member on the fixed portion side is W (mm), D = 15 to 20 and D <W <2D, The structure of the fastening part of the disposable diaper, characterized in that 2. The fastening portion is formed in a taper shape such that the width becomes narrower from the play portion to the tip portion of the fastening portion, and the taper angle θ of the fastening portion is 0 <θ <4 degrees. The fixing part structure of the disposable diaper according to claim 1, which is characterized by being present. 3. A paper diaper provided with the fastening part structure according to claim 1.