JP2003070838A - Disposable paper diaper having color design - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable paper diaper capable of being worn with underwear sensation and enabling going-out without anxiety. SOLUTION: In the disposable paper diaper comprising a liquid permeable top sheet covering a surface side, a liquid impermeable back sheet covering a back surface side and the absorber arranged between both sheets, a color design capable of recognized from the outside is printed on the total area of the back surface of the back sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper, and more specifically, a liquid-permeable top sheet that covers the front surface side and a liquid-impermeable back sheet that covers the back surface side.
The present invention relates to a disposable diaper including an absorbent body arranged between the sheets, which has an underwear sensation by performing color design printing that can be recognized from the outside.

[0002]

2. Description of the Related Art Conventionally, the basic structure of disposable paper diapers provided on the market has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body arranged between these sheets. The excrement such as urine excreted during wearing is retained mainly by the absorbent body through the liquid-permeable top sheet, and the liquid-impervious back sheet allows the excrement to leak to the outside of the diaper. It is used by infants and people requiring nursing care to prevent this. Incidentally, such a disposable paper diaper, depending on its application, to the above-mentioned basic configuration main body, elastic stretchable members such as around the waist and legs, gather members, side flaps, or body backsheet, etc. are added, In addition, as the type, a type in which the main body of the diaper is fixed to the waist with a fixing tool such as a tape and a type in which a pants type is formed in advance are generally known.

By the way, in the conventional disposable paper diaper described above, various patterns, characters, etc., which can be recognized from the outside when worn, are formed by a back sheet for the purpose of distinguishing between front and back when wearing, or displaying size and the like. There are some prints on the front and back parts. Especially in pants-type disposable paper diapers for infants, animals, vehicles,
It is also known to print a pattern that infants such as characters prefer. FIG. 8 shows an example thereof. This pants-type disposable paper diaper 100 has a leg-opening 101 and a waist-opening 102, and a front body formed to extend between the left and right leg-opening. 103 and the back body 104 are adhesively closed by side seams 105 to form a pant type, and a part of the surface of the plain front body 103 is a design (design) 106 in the shape of an animal (elephant) face.
Is printed in colors such as pink and green. In the figure, 107 and 108 are elastic members made of rubber or the like, 109 is a shirring portion, and 110 is an absorber installed inside.

According to the present inventor, the design of such a conventional disposable paper diaper is as follows:
The mainstream is printing on a waterproof film located on a part of the back or back (back body), and in most cases, the total area occupied by the colored portion of this printing is the front body 103 and the back body 104.
It has been confirmed that it is less than 20% of the total area of the back sheet, which is the surface on which the above is combined, that is, the printed surface.

[0005]

However, the disposable diaper 100 partially designed in this manner is used.
Then, since the elastic elastic members 107, 108 mounted on the shirring portion 109 and the leg openings 101, specifically, the rubber cords can be seen from the outside, and the outer shape of the absorber 110 can be seen clearly on the surface. However, there is a problem that it is immediately noticed to other people that the disposable diaper 100 is worn as it is. For this reason, infants, especially those who start to grow ego and who have shame, are resistant to wearing such a paper diaper, much less strong to wear such a paper diaper and go out. There was resistance. It should be noted that such difficulties are not limited to infants, and are the same for adults who need nursing care, for this reason, there is a demand for the appearance of disposable disposable diapers that are diapers but give the appearance of being close to underwear. It had been.

The present invention has been made in order to meet the above-mentioned demands, and an object of the present invention is to provide a disposable diaper that never feels embarrassed even when going out while being worn.

[0007]

The above object of the present invention is to provide a liquid-permeable top sheet that covers a front surface side, a liquid-impermeable back sheet that covers a back surface side, and an absorbent sheet disposed between the sheets. A disposable diaper having a color design according to claim 1, wherein a color design that can be recognized from the outside is printed on the entire back surface side of the back sheet in a disposable diaper including a body.

Further, according to the above-mentioned object of the present invention, a disposable diaper having a color design according to claim 2 is characterized in that the color design is printed on a ground pattern provided on the back sheet. Effectively achieved.

Further, the above object of the present invention is characterized in that the color design is printed on an outer surface or an inner surface of a nonwoven fabric which is an outermost layer sheet of the back sheet.
It is more effectively achieved by a disposable diaper having a color design according to claim 3.

Also, the above-mentioned object of the present invention is characterized in that the color design is printed on a design sheet mounted inside the outermost layer of the back sheet.
It is more effectively achieved by a disposable diaper having a color design according to claim 4.

Further, the above-mentioned object of the present invention is characterized in that the color design is printed on at least an elastic elastic member formed around the waist or legs of the diaper. More effectively achieved by a disposable diaper with a design.

Further, according to the above-mentioned object of the present invention, the color design is also printed on a three-dimensional gather portion formed on both sides of the main body of the diaper so as to project to the front side over substantially the entire length of the diaper. It is more effectively achieved by a disposable diaper with a color design according to claim 6.

Further, the above object of the present invention has a color design according to claim 7, wherein the color design is such that a ratio of a colored printing surface to a printing surface is set to 20% or more. More effectively achieved by disposable disposable diapers.

Further, the object of the present invention is to provide a disposable diaper having a color design according to claim 8, characterized in that the color design is formed by continuously arranging a single pattern substantially evenly. Effectively achieved.

Furthermore, the above object of the present invention is more advantageous by the disposable diaper having a color design according to claim 9, wherein the color design is formed by adding a character pattern to the single pattern. Will be achieved.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway development view of a pants-type disposable paper diaper (hereinafter referred to as “main paper diaper”) according to an embodiment of the present invention viewed from the surface side, that is, the use side, and FIGS. 1 is a development view of the diaper seen from the back side, and FIG. 5 is a perspective view of a product state of the diaper. The basic configuration of this diaper is described in Japanese Patent Application Laid-Open No. 2001-
It is substantially the same as the one proposed and disclosed in 187771. Therefore, description of the detailed configuration of the diaper will be omitted.

In these figures, 10 is the main body of the disposable diaper, 11 is a liquid permeable top sheet, 12 is a waterproof film,
13 is an absorbent body, 13A is an upper absorbent body, 13B is a lower absorbent body, 13C and 13D are crepe papers, 14 is an elastic elastic member for lifting the absorbent body, 20 is a main body pack sheet, 21 is an outer backsheet nonwoven fabric, 22 is an inner back sheet nonwoven fabric, 23 and 24 are waist elastic elastic members, 25 is abdominal elastic member, 26 is a front body lifting elastic member,
27 is an elastic elastic member of the buttocks, 30 is a gather sheet, 31
Is an elastic elastic member for standing, 40 is color design printing, and B1 is a solid gather.

As shown in the figure, the present paper diaper has a liquid permeable top sheet 11 made of non-woven fabric and a waterproof film 12 made of polyethylene or the like, and an absorbent body 13 made of cotton-like valp or the like. Body 10
Is a disposable diaper having a structure in which the main body backsheet 20 is integrally provided on the outer surface side of the.

The absorbent body 13 comprises an upper hourglass-shaped absorber 13A having a wide area and a rectangular lower absorber 13B having a slightly narrow area, which are crepe paper 13C,
The upper absorbent body 13A and the lower absorbent body 13B are surrounded by 13D and have a semi-rigid property of being deformable as a whole, and a powdery high molecular weight absorbent polymer is contained therein. The liquid-permeable top sheet 11 is fixed to the upper surface of the absorbent body 13 almost entirely by a hot-melt adhesive, and the waterproof film 12 is fixed to the lower surface of the absorbent body 13 by a hot-melt adhesive. The disposable diaper body 10 is configured.

On the other hand, gather sheets 30, 30 are provided on both sides of the surface of the main body 10 of the diaper to form a three-dimensional gather B
1 and B1 are provided. As the gather sheet 30, a water-repellent non-woven fabric is used in order to reduce liquid permeability as much as possible, prevent permeation of urine and the like, prevent fogging, and enhance the feel to the skin. .

On the other hand, the waterproof film 12 is provided so as to cover the entire back surface of the main body 10 of the diaper.
A material having moisture permeability is used for the waterproof film 12 from the viewpoint of preventing stuffiness.

The main body backsheet 20 is a backsheet non-woven fabric 22 for the inner surface and a backsheet non-woven fabric 21 for the outer surface, which are bonded together by a hot-melt adhesive. The paper diaper is provided with flap portions at the front and rear end sides thereof. The outer shape is larger than that of the main body 10, and the whole body has a pseudo hourglass shape.

The main body 10 of the disposable diaper constructed as described above.
Also, the main body backsheet 20 is folded inward from the center, and the upper and lower ends of the main body backsheet 20 are adhesively closed in a state where the waist elastic elastic members 23, 24 are overlapped with each other, and as shown in FIG. Formed into a pattern paper diaper.

Here, in the present paper diaper, as shown in FIGS. 2 and 3, the color design printing 40 is performed on the outer side of the main body backsheet 20, that is, on the white background portion of the outer backsheet nonwoven fabric 21 by a method such as gravure printing. Has been applied. As shown in FIG. 4, the design of the color design printing 40 is a so-called checkered pattern in which white (ground color) 40A and light blue 40B are alternately arranged over the entire area of the pseudo hourglass-shaped backsheet nonwoven fabric 21. It is configured. As described above, in the present paper diaper, the ratio of the printed portion, that is, the portion colored in light blue 40B, to the entire back surface of the backsheet nonwoven fabric 21 for the outer surface is 5 in the printed surface.
It is set to 0 percent. In the present paper diaper, although not particularly shown in the waist elastic elastic members 23 and 24 and the elastic lifting members 14 and 14 for lifting the absorbers around the legs, the surface of the gather sheet 30, at least FIG. The same color design printing as described above is also applied to the surface of the three-dimensional gather B1 shown in FIG.

As a result, when the paper diaper is put into a product state as shown in FIG. 5, the elastic elastic members 23 and 24 around the waist and the elastic elastic members for lifting the absorber around the legs correspond to so-called shirring portions. Since 14 and 14 are also color-design printed, the rubber string attached to this portion is hidden by the printed portion. Similarly, the outer shape of the absorber body 13 mounted inside is also hidden by this printed portion, and the side portion of the absorber body 13 is also hidden by the printed portion provided on the three-dimensional gather B1. Appearance is no different from normal underwear. Therefore, according to the present paper diaper, there is an advantage that the diaper can be worn like underwear and that the user can go out with peace of mind.

Further, according to the present paper diaper, the absorbent body 1
Since the outer side of 0 is firmly guarded by the main body backsheet 20 including the waterproof film 12, the outer backsheet nonwoven fabric 21 and the inner backsheet nonwoven fabric 22, there is an advantage that it is not necessary to use a diaper cover separately.

Although the content of the present invention has been described above based on the embodiment, the present invention is not necessarily limited to this embodiment, and various modifications can be made in the structure.

In the above-described embodiment, the color design is printed on the outer white background portion of the outer backsheet nonwoven fabric 21.
The outer backsheet nonwoven fabric 21 may be transparent or translucent and may be printed on the inner surface. Further, for example, as shown in a sectional view of FIG.
0'is composed of a transparent or semitransparent backsheet nonwoven fabric 22 'for the inside and a backsheet nonwoven fabric 21' for the outside,
A design sheet 50 in which a color design print is previously applied between the main body back sheet 20 'and the waterproof film 12.
It is also possible to arrange the print surface so that the printed surface faces the main body backsheet 20 'so that the color design can be recognized from the outside.

Further, without the main body backsheet 20,
When the back sheet is, for example, a disposable diaper composed only of the waterproof film 12, the color design printing 40 may be applied to the back surface or the inner surface of the waterproof film 12, and further, the design sheet and the main body. It is also possible to print both on the backsheet 20 'and combine both to form one color design.

As the color design in the present invention,
Not limited to the checkerboard pattern, for example, waveforms arranged substantially evenly,
Single patterns such as polka dots, clouds, stars, and lattices may be arranged in multiple rows in succession, and each pattern may be printed with an appropriate color or colors. May be formed in a single color to form a ground pattern, and a character pattern may be color-printed on the ground pattern. 7 (a) (b)
(C) is an example of these color designs,
(A) is a color design consisting of a grid pattern 60B in which a vertical line is colored red and a horizontal line is colored green on a white background 60A,
(B) is a star-shaped pattern 70B, which is arranged scatteredly on a light-blue base 70A and is alternately colored yellow and purple.
In addition, (c) shows a color design in which a ground pattern formed by a corrugated pattern 80B colored in blue on a yellow white background 80A and a polka dot pattern 80C colored in black are combined. It is a thing. In addition, it is desirable that the ratio of the printed portion, that is, the ratio of the colored printing surface to the printing surface is 20% or more. If this is less than 20 percent, then
This is because there is a feeling that the disposable diaper cannot be removed.

In particular, when such a color design is applied to a shirring portion, that is, a portion to be fastened by elastic elastic members around the waist or legs, this portion is contracted, and as described above. It is desirable to arrange such a pattern so that it is dense in this portion and to print along the circumferential direction of the shirring. When printing is performed in this manner, the elastic stretchable member such as a rubber cord in this portion is further concealed by this printing, and can be brought closer to underwear.

As a method of printing the color design as described above, a known printing method such as gravure printing, flexographic printing or ink jet printing can be applied.

Although the pants-type disposable paper diaper has been described in the above embodiment, the same effect can be obtained even if the disposable diaper is a so-called tape-type disposable diaper in which the diaper is fixed to the waist with a fixing tool such as a tape. Needless to say, it can be obtained. Further, in the above-mentioned embodiment, the disposable paper diaper having the abdominal elastic stretchable member 25 and the front body lifting elastic stretchable member 26 has been illustrated, but the present invention is also applicable to a disposable paper diaper not having such an elastic stretchable member. .

The color design printing according to the present invention can be applied not only to the outer surface of the backsheet, but also to the printing of only the three-dimensional gather portion, the waist elastic elastic member or the leg elastic elastic member. . Even in such a case, it is desirable that the ratio of the colored printing surface to the printing surface is 20% or more.

Since the present invention is constructed as described above, it can be brought closer to underwear, especially when combined with a side elastic type diaper having no shirring on the abdomen or back.

[0037]

As described above in detail, according to the present invention, regardless of the type of pants type and tape type, it is a disposable paper diaper and can be worn like underwear. In particular, even an infant around the age when the ego has started to grow and is shy can wear it without any resistance, and can go out with peace of mind.

Further, since the front body and the back body of the disposable paper diaper are colored in the whole area, it can be said that the disposable paper diaper is highly fashionable and reminiscent of a kind of short pants.

Furthermore, when the disposable diaper is constructed so that the main body cover sheet securely protects the absorbent body, there is an advantage that a troublesome diaper cover is unnecessary.

[Brief description of drawings]

FIG. 1 is a partially cutaway development view of a pants-type disposable paper diaper according to an embodiment of the present invention as viewed from the front side.

FIG. 2 is a cross-sectional view taken along the line XX of FIG.

3 is a cross-sectional view taken along the line YY of FIG.

FIG. 4 is a development view of the disposable diaper shown in FIG. 1 as viewed from the back side.

5 is a perspective view of a product state of the disposable disposable diaper shown in FIG. 1. FIG.

FIG. 6 is a cross-sectional view of another embodiment of the disposable paper diaper according to the present invention.

7 (a), (b) and (c) are diagrams illustrating various patterns of color design in the present invention.

FIG. 8 is a perspective view of a conventional pants-type disposable paper diaper.

[Explanation of symbols]

10 Paper diaper body 11 Liquid-permeable topsheet 12 Waterproof film 13 Absorber body 20, 20 'body backsheet 21, 21 'Outer backsheet non-woven fabric 22,22 'Back sheet nonwoven for inner surface 23, 24 waist elastic elastic member 30 gather sheet B1 three-dimensional gather 40 color design printing 50 design sheets 100 Conventional pants-type disposable diapers 103 front body 104 back body 106 design 107, 108 Elastic stretchable member 109 Shirring part 110 absorber

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Claims (9)

[Claims] 1. A liquid-permeable top sheet covering a front surface side,
In a disposable paper diaper composed of a liquid-impermeable back sheet covering the back surface side and an absorber arranged between the sheets, a color design that can be recognized from the outside is printed on the entire back surface side of the back sheet. Disposable disposable diaper with a color design. 2. The disposable paper diaper with a color design according to claim 1, wherein the color design is printed on a ground pattern provided on the back sheet. 3. The disposable paper diaper having the color design according to claim 1, wherein the color design is printed on an outer surface or an inner surface of a nonwoven fabric which is an outermost layer sheet of the back sheet. . 4. The disposable diaper with a color design according to claim 1, wherein the color design is printed on a design sheet mounted inside the outermost layer of the backsheet. . 5. The color design is printed on an elastic stretchable member formed around at least a waist or a leg of a disposable diaper.
A disposable paper diaper having the color design described in. 6. The color design is also printed on a three-dimensional gather portion formed on both sides of the main body of the disposable diaper so as to project to the front side over substantially the entire length of the disposable diaper. A disposable paper diaper having the color design according to any one of claims 1 to 5. 7. The color design according to claim 1, wherein a ratio of the colored printing surface to the printing surface is set to 20% or more in the color design. A disposable paper diaper. 8. The color design according to claim 1, wherein the color design is formed by continuously arranging a plurality of single patterns arranged substantially evenly. A disposable paper diaper. 9. The disposable diaper with a color design according to claim 8, wherein the color design is formed by adding a character pattern to the single pattern.