JP6783608B2 - Disposable disposable diapers - Google Patents

Description

The present invention relates to a disposable disposable diaper, and more particularly to a disposable disposable diaper which does not require a stamp for each size even if the size is different, has no misalignment of the design, and has a good appearance.

The basic form of a disposable disposable diaper is composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber arranged between these sheets. Disposable disposable diapers absorb excrement such as urine excreted when worn by an absorber through a liquid-permeable top sheet, and the impermeable back sheet prevents the excrement from leaking to the outside of the disposable diaper. It is mainly used for infants and people requiring nursing care. Such disposable disposable diapers are provided with elastic elastic members such as around the waist and legs, gather members, side flaps, and a back sheet for the main body, depending on the intended use. The types of diapers include pants-type disposable diapers and tape-fixed disposable paper diapers.

In the disposable disposable diapers, patterns and characters that can be recognized when worn are printed on a part of the front and back bodies so that the front and back and the size can be visually recognized when worn. In particular, pants-type disposable disposable diapers and pants-type disposable swimsuits for infants are known to have patterns printed on them, such as animals, vehicles, and characters.

As for disposable disposable diapers having designs such as patterns, those that solve various problems have been proposed. Patent Document 1 proposes a disposable swimsuit made of a disposable diaper that can prevent lateral leakage of excrement, has a color design, looks good, and can be worn like underwear or a swimsuit, especially suitable for infants to play in the water. Has been done. This disposable swimsuit is formed by a top sheet having three-dimensional gathers on both sides and arranged on the skin contact surface side, a back sheet arranged on the outer surface side, and an absorber interposed between the sheets. The outer surface of the swimsuit body is designed with a color that can be seen from the outside.

Japanese Unexamined Patent Publication No. 2005-296372

The pants-type disposable paper diaper (disposable swimsuit) described in Patent Document 1 is improved in appearance by applying a color design that can be visually recognized from the outside on the outer surface side of the diaper body. In such pants-type disposable disposable diapers, the impermeable back sheet raw fabric and the design sheet raw fabric, etc., which are arranged on the non-skin surface side and have a pattern, etc., are cut out to a predetermined size and placed on the skin surface side. It is manufactured by integrating the liquid-permeable top sheet raw fabric, the absorbent raw fabric, etc., which are cut out to a predetermined size. Therefore, the sheet cut out to a predetermined size from the original fabric with the pattern pattern or the like is formed by integrally forming the front body and the back body of the pants-type disposable disposable diaper, and therefore, for example, M size and L size. , When the size is different such as BIG size, the length of the crotch portion changes depending on the size, and a specific pattern or the like may not be provided at a specific position.

For example, FIG. 15 is a development view of a BIG-sized exterior-integrated disposable diaper 100, and FIG. 16 shows a BIG-sized exterior-integrated disposable diaper 100 of FIG. 15 applied to a pattern-forming sheet original fabric 20 for BIG size. This is the case. In FIG. 16, since the BIG size exterior integrated paper diaper is applied to the original fabric 20 of the pattern pattern forming sheet for BIG size, the pattern pattern looks good.

However, FIG. 17 shows a case where the pattern forming sheet original fabric 20 for BIG size is applied to the M size exterior integrated paper diaper, and the elastic bands 12b and 12f of the waist circumference portion and the waist circumference of the design pattern forming sheet original fabric 20. This is a case where the crotch portion is slit after aligning the portion portion and applied to the M size. As a result, the intended pattern cannot be provided at a predetermined position, for example, the characters "FRONT" in the circle in FIG. 17 do not match in size and are present near the crotch portion. Is confused or looks bad. Further, as in FIG. 17, FIG. 18 is a case where the pattern forming sheet original fabric 20 for BIG size is applied to the M size exterior integrated paper diaper, and the ventral elastic band 12f around the waist and the pattern pattern forming sheet original. This is a case where the sheet original fabric 20 on the back side B is folded back and applied to the M size without slitting the crotch portion after aligning the waistline portion of the anti-20. As a result, the character design or the like exists at the position of the dorsal elastic band 12b of the back body B, the intended pattern cannot be provided at a predetermined position, and the appearance is deteriorated. In this way, when the original sheet 20 with a pattern or the like is applied regardless of the size of the diaper, the larger the size, the longer the length L10 of the crotch portion. Therefore, the positions of the pattern 21 and the character design 22 that would normally be provided at the predetermined positions of the front body F and the back body B are displaced upward or downward, resulting in deterioration of the appearance and deterioration of the appeal effect. Was occurring.

In response to these problems, stamps were prepared for different sizes to prevent misalignment of specific designs and to prevent the appearance of character designs from deteriorating. However, preparing a stamp for each size increases the manufacturing cost.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a disposable disposable diaper that does not require a printing plate for each size even if the size is different, has no misalignment of the design, and has a good appearance. To provide.

The disposable paper diaper according to the present invention has an exterior having a ventral exterior covering the ventral side, a dorsal exterior covering the dorsal side, and an interior body connected to the ventral outer body and the dorsal exterior body, respectively. A body-divided disposable paper diaper, in which the ventral exterior body and the dorsal exterior body have a pattern or the like provided at a target position even if the size is different, and the belly having the pattern. The side exterior body and the back side exterior body are characterized in that they are obtained from a pattern pattern forming sheet printed with a single printing plate.

According to the present invention, since the outer body is a two-part disposable disposable diaper, the ventral outer body and the dorsal outer body are divided. Therefore, even if the sizes are different, the ventral exterior body and the dorsal exterior body having the pattern can be cut out for each size from the original fabric of the pattern pattern forming sheet printed with a single stamp. It does not require a printing plate for each size, and is not affected by changes in the length of the crotch due to different sizes as in the past. As a result, the positions of the pattern or character design to be provided at the predetermined positions of the front body and the back body do not shift upward or downward, and it is possible to prevent deterioration of the appearance and deterioration of the appeal effect.

In the disposable disposable diaper according to the present invention, the design pattern can be configured to be cut out to a predetermined length according to the size so that the entire pattern can be visually recognized even if the size is different.

According to the present invention, even if the sizes are different, they are cut out to a specified length according to the size, so that the pattern such as the character design can be visually recognized without being cut in the middle. It looks good and has a high appealing effect.

In the disposable disposable diaper according to the present invention, the length L2 of the pattern drawn on the portion where the length L1 changes according to the size can be configured to be smaller than the length L1.

According to the present invention, the length L2 of the pattern drawn on the portion where the length L1 changes according to the size is smaller than the length L1, so that the length L1 changes even for disposable diapers of different sizes. The pattern such as the character design drawn on the part can be visually recognized without being cut off in the middle, and it looks good and has a high appealing effect.

In the disposable disposable diaper according to the present invention, the distance L3 from the design pattern to the body side end of the ventral exterior body and the distance L4 from the design pattern to the body side end of the dorsal exterior body are the same. It is preferable to have.

According to the present invention, the distance L3 from the design pattern to the cutting position of the body side end of the ventral exterior body and the distance L4 from the design pattern to the cutting position of the body side end of the dorsal exterior body are the same. Therefore, the positions of the pattern or character design to be provided at the predetermined positions of the front body and the back body do not shift upward or downward, and it is possible to prevent deterioration of the appearance and deterioration of the appeal effect. In particular, the characteristic patterns are provided in the same positional relationship on both the ventral and dorsal exterior bodies, so even diapers of different sizes can be placed in the same position on the front body F and back body B. The patterns and character designs that you want to provide are arranged, and even if the sizes are different, it is possible to make the appearance uniform and the appealing effect uniform.

In the disposable disposable diaper according to the present invention, the folding length L5 at the body side end of the ventral exterior body and the folding length L6 at the body side end of the dorsal exterior body are configured to be the same. it can.

According to the present invention, since the folding length L5 at the body side end of the ventral exterior body and the folding length L6 at the body side end of the dorsal exterior body are the same, the front body and the back body The position of the pattern or character design to be provided at a predetermined position does not shift upward or downward, and it is possible to prevent deterioration of appearance and deterioration of appeal effect. In this case, it may be configured so that there is no folding back at the crotch side end of the ventral exterior body and the crotch side end of the dorsal exterior body.

In the disposable disposable diaper according to the present invention, the ventral body is folded back at the crotch side end of the ventral body and the crotch side end of the dorsal body without being folded back at the body end. Can be configured as

According to the present invention, the ventral exterior body is folded back at the crotch side end portion of the ventral exterior body and the crotch side end portion of the dorsal exterior body without being folded back at the body side end portion. The position of the pattern or character design to be provided at a predetermined position on the back body does not shift upward or downward, and it is possible to prevent deterioration of appearance and deterioration of appealing effect.

In the disposable disposable diaper according to the present invention, the folded portion is provided with a see-through prevention sheet for preventing the pattern drawn on the folded portion from see-through.

According to the present invention, since the see-through prevention sheet for preventing the see-through of the pattern drawn on the folded portion is provided, it is possible to prevent deterioration of appearance and deterioration of appealing effect.

In the disposable disposable diaper according to the present invention, the folding may be performed twice or more.

According to the present invention, the width of the folded portion can be adjusted by performing the folding twice or more.

The disposable disposable diapers according to the present invention are sold as one of a series of different sizes.

According to the present invention, it is sold for each size as one of a series having different sizes (for example, it is sold at a store as a product displayed as "M size", "L size", "BIG size", etc.). Therefore, even if the size is different, it can be cut out from the original fabric of the pattern pattern forming sheet to a predetermined size according to the size, and there is no need for a printing plate for each size, which increases the manufacturing cost, and the size is the same as before. Is not affected by changes in the length of the crotch due to the difference. As a result, the positions of the pattern or character design to be provided at the predetermined positions of the front body and the back body do not shift upward or downward, and it is possible to prevent deterioration of the appearance and deterioration of the appeal effect.

In the disposable paper diaper according to the present invention, the design pattern is printed on the ventral exterior body or the outer sheet of the ventral exterior body on the ventral side, and the dorsal exterior body or the ventral exterior on the dorsal side. It is printed on the sheet on the outside of the body.

According to the present invention, it is possible to provide a disposable disposable diaper that does not require a printing plate for each size even if the size is different, has no misalignment of the design, and has a good appearance.

It is a front view seen from the back side of the pants-type disposable disposable diaper which is divided into two parts. It is a front view seen from the ventral side of the pants-type disposable disposable diaper which is divided into two parts. It is a top view of the non-skin surface side in the state where the pants-type disposable disposable diaper of the two-part exterior body is unfolded. It is a top view of the skin surface side in the state where the pants-type disposable disposable diaper of the two-part exterior body is unfolded. It is 3-3 cross-sectional view of FIG. It is a cross-sectional view of 4-4 of FIG. It is explanatory drawing which shows the manufacturing flow (the 1) of the pants-type disposable disposable diaper of a two-part exterior body type. It is explanatory drawing which shows the manufacturing flow (the 2) of the pants-type disposable disposable diaper of a two-part exterior body type. This is an example of the original sheet on which the pattern is printed. It is explanatory drawing of the length L2 of the pattern pattern drawn in the part where the length L1 changes according to the size. It is explanatory drawing of the cut-out part corresponding to a different size. It is explanatory drawing of the folded-back part in the body side end part. It is explanatory drawing of the folded-back part at the crotch side end part. It is explanatory drawing of the form which provided the see-through prevention sheet in the folded-back part. It is a top view of the skin surface side in the state where the conventional disposable diaper with an integrated exterior is unfolded. It is explanatory drawing in the case that the design pattern does not shift in a conventional disposable diaper with an integrated exterior. It is explanatory drawing of an example which the pattern pattern shifts and the appearance deteriorates in a conventional disposable diaper with an integrated exterior. It is explanatory drawing of another example which the pattern pattern shifts and the appearance deteriorates in a conventional disposable diaper with an integrated exterior.

An embodiment of a disposable disposable diaper according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and includes various modifications and applications having the main parts thereof.

[Disposable disposable diapers]
As shown in FIGS. 1 to 4, the disposable paper diaper 1 according to the present invention includes a ventral exterior body 12F covering the ventral side F, a dorsal exterior body 12B covering the dorsal side B, a ventral exterior body 12F, and a dorsal side. It is an exterior body divided type disposable paper diaper having an interior body 200 connected to each side exterior body 12B. The disposable disposable diaper 1 has a pattern or the like 21 provided at a target position even if the ventral outer body 12F and the dorsal outer body 12B have different sizes. The ventral exterior body 12F and the dorsal exterior body 12B having the pattern 21 are characterized in that they are obtained from the pattern pattern forming sheet 20 printed with a single printing plate.

Since this disposable disposable diaper 1 is an exterior body two-piece disposable paper diaper, the ventral exterior body 12F and the dorsal exterior body 12B are divided. Therefore, even if the sizes are different, the ventral exterior body 12F and the dorsal exterior body 12B having the pattern 21 are cut out for each size from the original fabric 20 of the pattern pattern forming sheet printed with a single printing plate. It does not require a printing plate for each size, and is not affected by the change in the length L10 of the crotch portion due to the difference in size as in the conventional case. As a result, the positions of the pattern 21 and the character design 22 that are desired to be provided at the predetermined positions of the front body F and the back body B do not shift upward or downward, and the deterioration of the appearance and the deterioration of the appeal effect are prevented. be able to.

Hereinafter, the structural form and components of the disposable disposable diaper will be described in detail.

<Basic structural form>
As shown in FIGS. 1 to 4, the basic structural form of the disposable paper diaper 1 is a ventral exterior body 12F covering the ventral side F, a dorsal exterior body 12B covering the dorsal side B, and a ventral exterior body 12F. And the interior body 200 connected to the dorsal exterior body 12B, respectively.

This disposable disposable diaper 1 is also called an exterior two-piece pants-type disposable disposable diaper. The exterior body 12 is divided into a ventral exterior body 12F and a dorsal exterior body 12B, and the ventral exterior body 12F and the dorsal exterior body 12B are separated from each other on the crotch side without being continuous. There is a fixing portion 67 on the inner surface of the central portion in the width direction of the ventral exterior body 12F, and the front end portion of the interior body 200 is connected by a hot melt adhesive or the like. There is also a fixing portion 67 on the inner surface of the central portion in the width direction of the dorsal exterior body 12B, and the rear end portion of the interior body 200 is connected by a hot melt adhesive or the like. Further, both side edges in the width direction of the ventral exterior body 12F and both side edges in the width direction of the dorsal exterior body 12B are joined in the vertical direction by heat sealing, ultrasonic welding, etc. to form tubular exterior bodies 12F, 12B. doing. Reference numeral 12A indicates a joint portion (side seal portion) between the ventral exterior body 12F and the dorsal exterior body 12B. In FIG. 4, the reference numeral Y indicates the total length of the diaper in the unfolded state (the vertical length from the edge of the waist opening of the front body F to the edge of the waist opening of the back body B), and the reference numeral X is the unfolded state. It shows the full width of the diaper in.

The interior body 200 is a part that absorbs and holds excrement such as urine, and the exterior bodies 12F and 12B are parts for supporting the interior body 200 with respect to the wearer's body. Although the dotted pattern portion in the figure shows a hot melt adhesive for joining each component, a welding means for joining by welding the target member can also be used.

The upper openings of the exterior bodies 12F and 12B serve as waist openings through which the wearer's body passes, and the portions surrounded by the lower edges of the exterior bodies 12F and 12B and the side edges of the interior body 200 on both sides of the interior body 200 in the width direction are formed. It becomes a leg opening through which the leg passes. When the welded portions 12A of the exterior bodies 12F and 12B are peeled off and unfolded, the shape is constricted in the front-rear direction as shown in FIGS. 3 and 4. The interior body 200 extends from the dorsal side B through the crotch portion to the ventral side F, and is a portion that receives excrement and absorbs and holds liquid, and the exterior bodies 12F and 12B are This is a portion that supports the interior body 200 with respect to the wearer.

(Interior body)
The interior body 200 can take any shape, but is rectangular in the illustrated form. As shown in FIGS. 5 and 6, the interior body 200 includes a top sheet 30 on the body side (skin surface side), a liquid-impermeable sheet 11, and an absorbing element 50 interposed between them. It is a main body that has an absorption function. Reference numeral 40 indicates an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbing element 50 in order to quickly transfer the liquid that has passed through the top sheet 30 to the absorbing element 50 and prevent reversion. Reference numeral 60 indicates three-dimensional gathers 60 that are provided on both sides of the interior body 200 and stand up on the body side in order to prevent excrement from leaking to both sides of the interior body 200.

(Top sheet)
The top sheet 30 has a property of allowing liquid to permeate, and examples thereof include a perforated or non-perforated non-woven fabric and a porous plastic sheet. In addition, the non-woven fabric is not particularly limited as to what the raw material fiber is. For example, olefin-based fibers such as polyethylene and polypropylene, synthetic fibers such as polyester-based and polyamide-based fibers, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers in which two or more of these are used. Etc. can be exemplified. Further, the non-woven fabric may be produced by any processing. Such a top sheet 30 may be made of one sheet or may be made of a laminated sheet obtained by laminating two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the plane direction.

When the three-dimensional gather 60 is provided, both sides of the top sheet 30 pass between the liquid impermeable sheet 11 and the three-dimensional gather 60 and wrap around to the back side of the absorbing element 50 to prevent the liquid from penetrating. It is preferable to adhere to the impermeable sheet 11 and the three-dimensional gather 60 with a hot melt adhesive or the like.

(Intermediate sheet)
In order to quickly transfer the liquid that has permeated the top sheet 30 to the absorber, an intermediate sheet (also referred to as a "second sheet") 40 having a faster liquid permeation speed than the top sheet 30 can be provided. The intermediate sheet 40 not only rapidly transfers the liquid to the absorber to improve the absorption performance by the absorber, but also prevents the phenomenon of "return" of the absorbed liquid from the absorber, and constantly dries the top sheet 30. Can be in the state of The intermediate sheet 40 may be omitted.

Examples of the intermediate sheet 40 include the same materials as the top sheet 30, spunlace, spunbond, SMS, pulp non-woven fabric, mixed sheet of pulp and rayon, point bond or crepe paper. In particular, the air-through non-woven fabric is preferable because it is bulky. It is preferable to use a composite fiber having a core-sheath structure for the air-through non-woven fabric. In this case, the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable. The intermediate sheet 40 of the illustrated form is arranged in the center shorter than the width of the absorber 56, but may be provided over the entire width. The length of the intermediate sheet 40 in the longitudinal direction may be the same as the length of the absorber 56, or may be within a short length range centered on the region for receiving the liquid.

(Liquid impermeable sheet)
The material of the liquid-impermeable sheet 11 is not particularly limited, but for example, a plastic film made of an olefin resin such as polyethylene or polypropylene, a laminated non-woven fabric in which a plastic film is provided on the surface of the non-woven fabric, or a plastic film. An example is a laminated sheet or the like in which a non-woven fabric or the like is laminated and bonded to the surface. For the liquid impermeable sheet 11, it is preferable to use a material having impermeable and moisture permeable properties, which has been favorably used in recent years from the viewpoint of preventing stuffiness. As a moisture-permeable plastic film, a microporous plastic film obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching in a uniaxial or biaxial direction. Is widely used. In addition, non-woven fabrics using microdenyl fibers, leakage-proof strengthening by reducing the voids of the fibers by applying heat or pressure, coating of super absorbent polymer or hydrophobic resin or water repellent, etc. Therefore, a liquid-impermeable sheet without using a plastic film can also be used as the liquid-impermeable sheet 11.

It is preferable that the liquid-impermeable sheet 11 wraps around both sides of the absorbing element 50 and extends to both sides of the side surface of the top sheet 30 of the absorbing element 50 in order to enhance the leakage resistance. Further, an excretion indicator whose color changes due to absorption of the liquid can be provided inside the liquid impermeable sheet 11, particularly on the side surface of the absorber 56.

(Three-dimensional gather)
As shown in FIGS. 5 and 6, the three-dimensional gather 60 is a band-shaped member extending in the entire front-rear direction on both side portions of the interior body 200, and urine and loose stools moving laterally along the top sheet 30. It is provided to block and prevent lateral leakage. The three-dimensional gather 60 of the present embodiment is provided so as to stand up from the side portion of the interior body 200, the portion on the base side stands up diagonally toward the center side in the width direction, and the portion on the tip side from the intermediate portion has a width. It stands diagonally toward the outside in the direction.

More specifically, as shown in FIGS. 5 and 6, the three-dimensional gather 60 folds the strip-shaped gather sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 in the width direction and folds it in two. At the same time, a plurality of elongated elastic elastic members 63 are fixed between the folded-back portion and the sheets in the vicinity thereof in a state of being extended in the longitudinal direction and at intervals in the width direction. The base end portion (the end portion opposite to the seat folded portion in the width direction) located on the opposite side of the tip portion of the three-dimensional gather 60 is a mounting portion 65 fixed to the back surface of the side edge portion of the interior body 200. The portion other than the mounting portion 65 is a protruding portion 66 (a portion on the folded-back portion side) protruding from the mounting portion 65. Further, the protruding portion 66 includes a root side portion facing the center side in the width direction and a tip side portion folded outward in the width direction from the tip of the root side portion. This form is a surface contact type three-dimensional gather, but a line contact type three-dimensional gather (not shown) that does not fold outward in the width direction can also be adopted. The front and rear fixing portions 67 of the protruding portions 66 are fixed to the side surface of the top sheet 30 by a hot melt adhesive or a heat seal while both ends in the front-rear direction are in an inverted state. The located intermediate portion in the front-rear direction is a non-fixed free portion, and an elongated elastic member 63 along the front-rear direction is fixed to this free portion in an extended state.

As the gather sheet 62, a flexible, uniform and concealing non-woven fabric such as a spunbonded non-woven fabric (SS, SSS, etc.), an SMS non-woven fabric (SMS, SMSMS, etc.), a melt-blown non-woven fabric, etc. is repelled by silicon or the like, if necessary. Those subjected to water treatment can be preferably used. As the elongated elastic elastic member 63, thread rubber or the like can be used. Further, as shown in the drawing, the waterproof film 64 can be interposed between the gather sheets 62 folded in two.

The number of elongated elastic elastic members 63 provided in the free portion of the three-dimensional gather 60 is preferably 2 to 6, and more preferably 3 to 5. The appropriate arrangement interval is 3 to 10 mm. With this configuration, it becomes easier for the elongated elastic elastic member 63 to hit the skin in the area where the elongated elastic elastic member 63 is arranged. The elongated elastic elastic member 63 may be arranged not only on the tip side but also on the base side.

The object of fixing the mounting portion 65 of the three-dimensional gather 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable sheet 11, and the absorbing element 50 in the interior body 200.

In the three-dimensional gather 60, the contraction force of the elongated elastic elastic member 63 acts to bring both ends in the front-rear direction closer to each other, but the both ends in the front-rear direction of the protruding portions 66 are fixed so as not to stand up. Since the space is a non-fixed free part, only the free part stands on the body side as shown in FIG. In particular, when the mounting portion 65 is located on the back surface side of the interior body 200, the three-dimensional gathers 60 stand up so as to open outward in the width direction in the crotch portion and its vicinity, so that the three-dimensional gathers 60 hit the legs around the surface. It comes into contact and the fit is improved. The dimensions of such a three-dimensional gather 60 are not particularly limited and can be appropriately determined. In addition, unlike the illustrated form, three-dimensional gathers 60 may be provided in double (two rows) on the left and right sides of the interior body 200.

(Absorption element)
As shown in FIG. 4, the absorbing element 50 has an absorbing body 56 and a packaging sheet 58 that encloses the entire absorbing body 56. The packaging sheet 58 may be omitted.

(Absorber)
The absorber 56 can be formed by an aggregate of fibers. The fiber aggregate is a filament aggregate obtained by stacking short fibers such as cotton-like pulp and synthetic fibers, and opening tow (fiber bundle) of synthetic fibers such as cellulose acetate as necessary. Can also be used. In the case of a filament aggregate, the filament may be a non-crimped fiber, but it is preferably a crimped fiber, and a uniformly crimped crimped fiber is often used. It is preferable to disperse and hold the highly absorbent polymer particles in the absorber 56.

The absorber 56 may have a rectangular shape, but as shown in FIG. 4, it has a shape having a front end portion, a rear end portion, and a constricted portion located between them and having a narrower width than the front end portion and the rear end portion. This is preferable because the fit of the absorber 56 itself and the three-dimensional gather 60 to the leg circumference is improved. The dimensions of the absorber 56 can be appropriately determined, but it is preferable that the absorber 56 extends to the peripheral edge of the interior body or its vicinity in the front-rear direction and the width direction. Reference numeral 56X indicates the width of the absorber 56.

(Highly absorbent polymer particles)
The absorber 56 may contain highly absorbent polymer particles in part or in whole. The highly absorbent polymer particles include "powder" in addition to "particles". As the highly absorbent polymer particles, those used for this type of disposable disposable diaper can be used as they are, for example, sifted by sieving (shaking for 5 minutes) using a standard sieve (JIS Z8801-1: 2006) of 500 μm. It is desirable that the proportion of particles remaining on the sieve is 30% by weight or less, and the proportion of particles remaining on the sieve is 60 by sieving (shaking for 5 minutes) using a standard sieve of 180 μm (JIS Z8801-1: 2006). It is desirable that the weight is% or more.

The material of the superabsorbent polymer particles can be used without particular limitation, but those having a water absorption amount (JIS K7223-1996 "Water absorption test method for superabsorbent polymer") of 40 g / g or more are preferable. Highly absorbent polymer particles include starch-based, cellulosic-based and synthetic polymer-based ones, such as starch-acrylic acid (salt) graft copolymer, saponified product of starch-acrylonitrile copolymer, and cross-linking of sodium carboxymethyl cellulose. A product, an acrylic acid (salt) polymer, or the like can be used. As the shape of the highly absorbent polymer particles, a commonly used powder or granular material is preferable, but other shapes can also be used.

If necessary, the highly absorbent polymer particles can be adjusted in spray density or spray amount in the plane direction of the absorber 56. For example, the amount of liquid excreted at the site can be sprayed more than at other sites. When considering the gender difference, the spray density (amount) on the front side can be increased for men, and the spray density (amount) on the central part can be increased for women. Further, it is also possible to provide a portion where the polymer does not exist locally (for example, in a spot shape) in the plane direction of the absorber 56.

(Packaging sheet)
When the wrapping sheet 58 is used, as the material thereof, tissue paper, particularly crepe paper, non-woven fabric, polylami non-woven fabric, sheet having small holes and the like can be used. However, it is desirable that the sheet does not allow the highly absorbent polymer particles to escape. When a non-woven fabric is used instead of the crepe paper, a hydrophilic SMS non-woven fabric (SMS, SMSMS, etc.) is particularly suitable, and polypropylene, polyethylene / polypropylene composite material, or the like can be used as the material.

The packaging form of the packaging sheet 58 can be appropriately determined, but from the viewpoint of ease of manufacture and prevention of leakage of highly absorbent polymer particles from the front and rear edge edges, a cylinder is provided so as to surround the front and back surfaces and both side surfaces of the absorber 56. It is preferable that the particles are wound in a shape and the front and rear edges thereof are squeezed out from the front and back of the absorber 56, and the squeezed out portions are crushed in the front and back directions and joined by a joining means such as a hot melt adhesive.

(Crotch cover sheet)
As shown in FIG. 5, on the back surface of the liquid-impermeable sheet in the interior body 200, a part of the exposed portion of the interior body 200 (for example, a portion exposed between the ventral exterior body 12F and the dorsal exterior body 12B). The crotch cover sheet 12M is attached so as to cover the entire front-rear direction of the interior body 200, but does not extend to the front-rear end of the interior body 200, and the both side edges in the width direction do not reach both side edges of the interior body 200) or the whole. You can also do it. As the crotch cover sheet 12M, the same materials as those used for the exterior bodies 12F and 12B described later can be used.

(Exterior body)
As shown in FIG. 4, the exterior bodies 12F and 12B have a waist circumference portion T defined as a vertical range having a side seal portion 12A (a vertical range from the waist opening to the upper end of the leg opening) and a leg opening. With the intermediate portion L determined as the anteroposterior range (between the vertical region having the side seal portion 12A of the ventral exterior body 12F and the vertical region having the side seal portion 12A of the dorsal exterior body 12B) of the portion forming the Has. The waist circumference T can be divided into a "waist edge" W that conceptually forms the edge of the waist opening and a "waist lower portion" U that is a lower portion thereof. The length in the vertical direction varies depending on the size of the product and can be appropriately determined. For example, the waist edge W may be 15 to 40 mm and the waist lower U may be 65 to 120 mm. On the other hand, the intermediate portion L can be omitted, or can be provided on both the ventral exterior body 12F and the dorsal exterior body 12B, but in the illustrated embodiment, the intermediate portion L is provided only on the dorsal exterior body 12B, and the buttocks are provided. It adopts a form that covers. When the leg-side edge Le of the intermediate portion L is formed in a curved shape along the leg circumference, the fit to the leg circumference is improved.

As shown in FIG. 3, the exterior bodies 12F and 12B are composed of the ventral exterior body 12F and the dorsal exterior body 12B, and the ventral exterior body 12F and the dorsal exterior body 12B are not continuous on the leg side and are separated from each other. Has been done. The separation distance L10 can be about 150 to 250 mm.

The exterior body 12 is formed by laminating two sheet materials with an adhesive such as a hot melt adhesive, and the inner sheet material located inside extends only to the edge of the waist opening. However, the outer sheet material wraps around the waist side edge of the inner sheet material and is folded back inside, and this folded portion extends so as to cover the upper part of the waist side end of the interior body 200. ..

As the sheet material, any sheet-like material can be used without particular limitation, but a non-woven fabric is preferable. The non-woven fabric is not particularly limited in what the raw material fiber is. For example, olefin-based fibers such as polyethylene and polypropylene, synthetic fibers such as polyester-based and polyamide-based fibers, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers in which two or more of these are used. Etc. can be exemplified. Further, the non-woven fabric may be produced by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.

The ventral exterior body 12F and the dorsal exterior body 12B are provided with elongated elastic elastic members 15 to 19 such as rubber threads for improving the fit around the waist between the two sheet materials at a predetermined elongation rate. .. As the elongated elastic elastic members 15 to 19, synthetic rubber or natural rubber may be used. Hot melt bonding, heat sealing, or ultrasonic bonding by various coating methods can be used for bonding the two sheet materials of the exterior bodies 12F and 12B and fixing the elongated elastic elastic members 15 to 19 sandwiched between them. ..

When the elongated elastic elastic members 15 to 19 are used, the same elastic elastic members can be uniformly provided, but it is preferable that the thickness, the interval, and the like are different depending on the positions of the exterior bodies 12F and 12B. Therefore, in the illustrated embodiment, a plurality of waist edge elastic elastic members 17 extend in the width direction at a predetermined extension rate at intervals in the vertical direction so as to be continuous in the entire width direction at the waist edge W. It is fixed in the fixed state. Of the elastic elastic member 17 at the waist edge, one or a plurality of members arranged in the area adjacent to the lower waist U may overlap with the interior body 200, or may overlap with the interior body 200 at the center in the width direction. It may be provided more laterally so as to be continuous in the width direction.

Further, in the lower waist U, a plurality of lower waist elastic elastic members 15 and 18 composed of elongated elastic elastic members continuous in the width direction are provided on the upper side of the interior body 200 and laterally from the central portion in the width direction overlapping with the interior body 200. The book is fixed in a state of being stretched in the width direction at a predetermined stretching rate with a space in the vertical direction.

(Example of manufacturing method)
7 and 8 are explanatory views showing a manufacturing flow (No. 1 and No. 2) of a pants-type disposable disposable diaper having a two-piece exterior body. This production line has a lateral flow form in which the diaper width direction is the MD direction (machine direction, line flow direction). In FIG. 7, the pattern pattern forming sheet original fabric 20 and the ventral side which is the ventral exterior body 12F are formed. An elastic band 12f and a dorsal elastic band 12b serving as a dorsal exterior body 12B are provided, and in FIG. 8, an interior body 200 manufactured on another line is attached to the ventral elastic band 12f and the dorsal elastic band 12b. Be done. In addition, in order to make the explanation easy to understand, the same reference numerals are used for the members that are continuous in the manufacturing process as well as the members after manufacturing.

This production line includes an elastic member mounting process 301, an elastic member cutting process 302, a center slit process 303, a folding process 304, a connecting process 305, a cutting process 306, an interior body mounting process 307, a folding process 308, and a side joining process 309. , Has a disconnection step 310.

In the elastic member mounting step 301, while transporting the strip-shaped pattern-forming sheet raw fabric 20 having a predetermined width in the continuous direction thereof, the sheet original fabric 20 is elongated in the CD direction over almost the entire area. The elastic members 15 to 19 are fixed in a stretched state in the MD direction, and a strip-shaped sheet material having a predetermined width is further supplied to the upper surface thereof in the continuous direction and bonded to form an elastic band. In the illustrated example, it is assumed that two strip-shaped sheets are bonded together to sandwich the elastic elastic members 15 to 19, but one strip-shaped pattern pattern forming sheet original fabric 20 sheet is folded in half or C. It can also be folded to sandwich the elastic elastic member. In this case, the pattern on the pattern pattern forming sheet original fabric 20 is provided so as to be arranged on the non-skin surface side.

Next, the elastic member cutting step 302 is performed on the formed elastic band, if necessary, with a predetermined interval in the MD direction, and the elastic elastic members 15, 16, 16 located at the partial CT that later overlaps with the interior body 200. The 18 and 19 are cut by a cutting device such as heat embossing so that the elastic force of the elastic elastic members 15, 16, 18 and 19 does not act on the partial CT.

Next, in the slit step 303 of the exterior bodies 12F and 12B, a predetermined portion SL in the middle of the CD direction of the stretchable body is cut in the MD direction by a slitter, divided into a ventral stretch band 12f and a dorsal stretch band 12b, and the belly The distance between the side telescopic band 12f and the dorsal telescopic band 12b is expanded to a predetermined distance. In this slit step 303, the cutting method may differ depending on how the pattern pattern forming sheet original fabric 20 described later is used. After the slit, if necessary, at least one of the ventral elastic band 12f and the dorsal elastic band 12b at the center side edge in the CD direction (the portion serving as the edge Le of the leg opening) can be cut off in a curved shape. However, such excision can be avoided if the trim loss is completely eliminated. Nevertheless, as will be described later, the edge Le of the leg opening can be shaped along the diagonal direction. Further, in the illustrated example, the ventral elastic band 12f and the dorsal elastic band 12b are formed as an integral elastic band, and then separately divided in the slit step 303, but a pattern pattern is formed by cutting it into a predetermined size in advance. When a sheet is used, the slit step 303 can be omitted by forming the ventral elastic band 12f and the dorsal elastic band 12b using separate sheets.

Next, in the folding step 304, while the ventral elastic band 12f and the dorsal elastic band 12b are transferred in parallel at intervals in the CD direction, for example, the veranda portion of the dorsal elastic band 12b on the ventral elastic band 12f side is transferred. It is folded once in the CD direction or multiple times in a zigzag manner and fixed to form a folded portion 12W. The fixed portion 12k of the folded-back portion 12W can be formed by an appropriate joining means such as a hot melt adhesive or a heat seal. Although not shown, for example, when the folded-back portion 12W is also provided on the ventral side, the edge portion of the ventral telescopic band 12f on the dorsal telescopic band 12b side is also fixed by folding back once in the CD direction or multiple times in a zigzag manner. To form a folded part. As described above, the number of times of folding of the folded portion 12W is not particularly limited, but if it is an even number, the portion of the folded portion 12W on the tip side of the most tip side crease faces the opposite stretchable body side (ventral stretchable body side). Since no force acts in the peeling direction of the connection when the folded-back portion 12W is developed by the connecting member 12M in the connecting step 305 described later, there is an advantage that the connection is stable and curling or peeling is unlikely to occur.

Next, in the connecting step 305, as shown in FIG. 8, at a predetermined interval in the MD direction, the portion of the folded-back portion on the tip side of the most tip-side crease is connected to the elastic band on the opposite side by the connecting member 12M. To do. That is, when the dorsal telescopic band 12b is provided with the folded portion as shown in the illustrated figure, the portion of the dorsal telescopic body folded out from the most distal fold is connected to the ventral elastic band 12f by the connecting member 12M. However, when the folded portion is provided on the ventral elastic band 12f instead of the dorsal elastic band 12b, the portion of the ventral elastic band 12f on the distal end side of the folded portion is connected to the dorsal elastic band 12b. When a folded portion is provided on both the dorsal elastic band 12b and the ventral elastic band 12f, the portion of the dorsal elastic band 12b that is more advanced than the most distal crease and the ventral elastic band 12f The portion of the folded portion on the tip side of the crease on the tip end side is connected by a connecting member. This connection can be performed by an appropriate joining means such as a hot melt adhesive or a heat seal. The connecting member 12M may be a member dedicated to connection. Therefore, in that case, the shape and dimensions are not particularly limited, but in the illustrated form, the connecting member 12M has a certain width, and the product has the above-mentioned crotch cover sheet 12M. It is supposed to be.

In the cutting step 306 following the connecting step 305, a notch 12K is made in the ventral elastic band 12f and the dorsal elastic band 12b, and a predetermined portion is cut off to form a pants shape. This excision can form a preferred leg opening. The cutting step 306 may be omitted depending on the shape of the pants.

After that, in the interior body mounting step 307, the interior body 200 previously manufactured on a separate line is supplied in the MD direction at a predetermined interval, and the front portion of the interior body 200 is applied to the ventral telescopic band 12f. The rear portion of the interior body 200 is joined to the dorsal telescopic band 12b, and the unfolded portion is fixed to the interior body 200 in the unfolded state to form the interior assembly. It is desirable that the interior body is also fixed to the connecting member. These joining and fixing can be performed by an appropriate means such as a hot melt adhesive or a heat seal.

Then, in the folding step 308, the interior assembly was folded at the center in the CD direction so that the mounting surface of the interior body 200 on the ventral telescopic band 12f and the mounting surface of the interior body 200 on the dorsal telescopic band 12b overlap. Later, in the side joining step 309, the ventral elastic band 12f and the dorsal elastic band 12b are joined at the portions to be both sides of each diaper to form the side seal portion 12A, and in the separating step 310, the ventral elastic band 12f is formed. The band 12f and the dorsal telescopic band 12b are cut at the boundaries of the individual diapers to obtain the individual diaper DP. The side joining step 309 and the separating step 310 can be performed at the same time.

(Pattern pattern forming sheet original fabric)
In the present invention, the pattern pattern forming sheet original fabric 20 shown in FIGS. 9 to 13 is used. The pattern pattern forming sheet original fabric 20 is a sheet on which the pattern pattern 21 and the character design 22 provided at the target positions are formed even if the sizes are different. The pattern forming sheet original fabric 20 is cut for the ventral exterior body of the ventral side F and for the dorsal exterior body of the dorsal side B, and the pattern pattern 21 and the character design 22 of the cut sheet are the belly. On the side F, it is printed on the outer sheet of the ventral exterior 12F or the ventral exterior 12F, and on the dorsal B, it is printed on the outer sheet of the dorsal exterior 12B or the dorsal exterior 12B. The sheet on which the pattern 21 and the character design 22 are printed is supplied by the manufacturing method described above, and the disposable disposable diaper 1 is manufactured.

This pattern pattern forming sheet raw fabric 20 can be cut out from the sheet raw fabric 20 for each of the exterior bodies 12F and 12B even if the size of the disposable disposable diaper 1 is different, and a stamp for each size is not required. , It is not affected by the change in the length L10 of the crotch portion due to the difference in size as in the conventional case. As a result, the positions of the pattern 21 and the character design 22 that are desired to be provided at the predetermined positions of the front body F and the back body B do not shift upward or downward, and the deterioration of the appearance and the deterioration of the appeal effect are prevented. be able to. Since the character design 22 is also a pattern, the character design 22 will be described as “design pattern 21” unless otherwise specified.

The design pattern 21 and the character design 22 are formed on the original fabric 20 of the design pattern forming sheet so that all the main design patterns 21 and the character design 22 can be visually recognized even if the sizes are different. Specifically, when the sizes are different as in the pattern forming sheet original fabric 20 shown in FIG. 9, the cut pieces are cut out to a specified length according to the size, but even in that case, In the example of FIG. 9, the main pattern 21 and the character design 22 having an appealing effect such as whale, dolphin, turtle, fish, “FRONT”, and “BACK” are formed at positions that are not cut in the middle. By doing so, even when the diaper size is cut out to a specified length according to the diaper size, such as M size (for example, 175 mm), L size (for example, 190 mm), BIG size (for example, 200 mm), etc. The main patterns are not cut off in the middle, and they look good and have a high appealing effect. The "trim" in FIG. 9 is an unused portion after being cut for each size, and there is no unused portion in the BIG size, but it occurs in the M size and the L size, respectively.

FIG. 10 is an explanatory diagram of the length L2 of the pattern pattern drawn in the portion where the length L1 changes according to the size. .. The length L2 of the pattern 21 is printed smaller than the length L1 described above. By printing the design pattern 21 in such a size, even if the disposable disposable diapers 1 have different sizes, as shown in FIG. 9, the main design having an appealing effect is drawn in the portion where the length L1 changes. The pattern 21 and the character design 22 are not cut off in the middle, and the appearance is good and the character design 22 has a high appealing effect.

Specifically, the dimension L2 of the main pattern 21 and the character design 22 having an appealing effect is made smaller than the dimension difference L1 between the sizes when the sizes are different. As a result, an appropriate design range can be secured regardless of the size. As shown in FIG. 10, when the length L1 that changes according to the size is, for example, amm or bmm, the length L2 of the main pattern 21 or the character design 22 drawn in the changing portion is less than amm or The length may be less than b mm, and as an example, it may be [a-5] mm or less and [b-5] mm or less.

In the present invention, since the ventral exterior body 12F and the dorsal exterior body 12B are obtained from the original fabric 20 of the pattern pattern forming sheet obtained by a single printing plate, as shown in FIG. 9, the specific pattern forming sheet is formed. The distance L3 from the design pattern, etc. 21 (the design pattern of "whale" in the example of FIG. 9) to the body side end portion 73 of the ventral exterior body 12F, and the specific design pattern, etc. 21 ("whale" in the example of FIG. 9). It is preferable that the distance L4 from the design pattern of ".") To the body side end portion 73 of the dorsal exterior body 12B is the same. In the example of FIG. 9, L3 and L4 are the distances to the pattern of the "whale", but are not limited to the "whale", and have appealing effects such as dolphins, turtles, fish, "FRONT", and "BACK". It may be a specific pattern 21 or a character design 22. In the present invention, the positions of such patterns and the like 21 do not shift upward or downward on either the ventral side F or the dorsal side B, and it is possible to prevent deterioration of appearance and deterioration of appealing effect. Furthermore, even if the diapers are of different sizes, the specific pattern 21 and character design 22 that you want to provide at the same position on the front body F and the back body B are arranged, and even if the sizes are different, the appearance will be uniform. It is possible to make the appeal effect uniform.

Note that FIG. 11 is an explanatory diagram of the cutout portion (trim) 71 corresponding to each size, so that the positional relationship between the ventral side pattern pattern and the like 21 and the dorsal side pattern pattern and the like 21 is the same for each size. Is provided with a cutout portion 71. In FIG. 11, reference numeral 71a is a line indicating a cutout portion at the minimum size (for example, M size), and reference numeral 71c is a line indicating a cutout portion at the maximum size (for example, BIG size).

FIG. 12 is an explanatory view of the folded-back portion 75 at the body-side end portion 73, and the folded-back length L5 at the body-side end portion 73 of the ventral exterior body 12F and the body-side end portion 73 of the dorsal exterior body 12B. This is an example in which the folding length L6 in is the same. By doing so, the positions of the design pattern 21 and the character design 22 that are desired to be provided at the predetermined positions of the front body F and the back body B do not shift upward or downward, resulting in deterioration of appearance and appealing effect. Can be prevented from decreasing. In this case, the crotch side end portion 73 of the ventral exterior body 12F and the crotch side end portion 73 of the dorsal exterior body 12B may not be folded back.

FIG. 13 is an explanatory view of the folded-back portion 75 at the crotch-side end 73, and the crotch-side end 73 of the ventral exterior body 12F without the folded-back portion 73 at the body-side end 73 of the ventral exterior body 12F. This is an example in which the back side exterior body 12B is folded back at the crotch side end portion 73. By doing so, the positions of the pattern 21 and the character design 22 that are desired to be provided at the predetermined positions of the front body F and the back body B do not shift upward or downward, and the appearance deteriorates and the appeal effect deteriorates. Can be prevented. Further, even if the position of the folded portion 75 differs depending on the size, the main pattern 21 and the character design 22 are formed on the original pattern 20 of the pattern pattern forming sheet so that all of them can be visually recognized. .. In the example shown in FIG. 13, the main pattern 21 and the character design 22 having an appealing effect such as whale, dolphin, turtle, fish, "FRONT", and "BACK" are formed in a position not hidden in the middle by folding back. There is.

FIG. 14 is an explanatory view of a form in which the folded-back portion 75 is provided with the see-through prevention sheet 76. The see-through prevention sheet 76 acts to prevent see-through of the pattern pattern or the like 21 drawn on the folded portion. In the example of FIG. 14, the side of the waistline portion is used as a see-through prevention sheet, but the side of the crotch portion may be provided with a see-through prevention sheet. Since the see-through prevention sheet 76 prevents the see-through of the pattern pattern and the like 21 drawn on the folded portion, it is possible to prevent deterioration of the appearance and deterioration of the appealing effect.

In the folded portion 75 described above, the number of times of folding is not particularly limited, and the folded portion 75 may be folded twice or more, and the width of the folded portion 75 can be appropriately adjusted.

The disposable disposable diaper 1 according to the present invention can be applied to different sizes. Therefore, as a disposable disposable diaper 1 sold as one of a series of different sizes, specifically, it is displayed as M size, L size, BIG size, etc., and multiple pieces are put in the product packaging bag at the store etc. It is preferably applied to the disposable disposable diapers 1 on the market. That is, as one of the series with different sizes, they are packed in bags for each size and sold (for example, they are sold at stores as products displayed as "M size diapers", "L size diapers", "BIG size diapers", etc.). Therefore, even if the size of the diaper is different, it can be cut out from the original fabric 20 of the pattern pattern forming sheet for each exterior body 12F and 12B, and there is no need for a printing plate for each size, which increases the manufacturing cost. It is not affected by changes in the length of the crotch due to different sizes as in the past. That is, only the stamp plate for the maximum size can be diverted to another size, and when it is desired to use it for a smaller size, the slit position may be changed. As a result, the positions of the pattern 21 and the character design 22 that are desired to be provided at the predetermined positions of the front body F and the back body B do not shift upward or downward, and the deterioration of the appearance and the deterioration of the appeal effect are prevented. be able to.

The present invention can be used for two-piece exterior disposable disposable diapers of different sizes.

1 ... Disposable paper diaper (exterior body split type pants type disposable diaper), 11 ... Liquid permeable sheet, 12A ... Side seal part, 12B ... Back side exterior body, 12F, 12B ... Exterior body, 12F ... Ventral exterior body , 12K ... notch, 12M ... crotch cover sheet, 12b ... dorsal elastic band, 12c ... intermediate part in CD direction, 12d ... separated part, 12e ... edge sheet material, 12f ... ventral elastic band, 12w ... overlapping part , 15-19 ... Elongated elastic elastic member, 16 ... Intermediate elastic elastic member, 17 ... Waist edge elastic elastic member, 19 ... Diagonal elastic elastic member, 20 ... Pattern pattern forming sheet original fabric, 21 ... Design pattern (design) Pattern, etc.), 22 ... Character design, 30 ... Top sheet, 40 ... Intermediate sheet, 50 ... Absorbent element, 56 ... Absorber, 58 ... Packaging sheet, 60 ... Three-dimensional gather, 62 ... Gather sheet, 63 ... Elongated elastic expansion and contraction Member, 64 ... Waterproof film, 65 ... Mounting part, 66 ... Protruding part, 67 ... Front and rear fixing part, 71 ... Cut out part (trim part), 72 ... Crotch side end, 73 ... Body side end, 75 ... Folded part , 76 ... See-through prevention sheet, 80 ... Cut part, 100 ... Integrated disposable diaper, 200 ... Interior body

301 ... Elastic member mounting process, 302 ... Elastic member cutting process, 303 ... Slit process, 304 ... Folding process, 305 ... Connecting process, 306 ... Cutting process, 307 ... Interior body mounting process, 308 ... Folding process, 309 ... Side part Joining process, 310 ... Separation process

F ... ventral side (front body), B ... back side (rear body), L ... middle part, Le ... leg opening edge, T ... waist circumference, U ... lower waist, W ... waist edge, L1 ... The length of the part whose length changes according to the size, L2 ... The length of the pattern drawn on the part where the length changes according to the size, L3 ... From the pattern etc. to the body side end of the ventral exterior body Distance, L4 ... Distance from the pattern etc. to the cutting position of the body side end of the dorsal exterior body, L5 ... Folded length at the body side end of the ventral exterior body, L6 ... Body of the back side exterior body Folded length at the side end, L10 ... Length of crotch

Claims (7)

A two-piece exterior disposable paper diaper having a ventral exterior covering the ventral side, a dorsal exterior covering the dorsal side, and an interior body connected to the ventral exterior body and the dorsal exterior body, respectively. The ventral exterior body and the dorsal exterior body have a specific pattern or character design provided at a target position even if they are different in size, and have the specific pattern or character design . the back side outer body and the ventral side outer body state, and are not obtained from the printed design patterns formed sheet of a single printing plate,
In the specific pattern or character design, even if the size of the ventral exterior body and the dorsal exterior body are different, the entire pattern or character design can be visually recognized without being cut off in the middle. It is cut out from the pattern pattern forming sheet with a specified length according to the size.
The vertical distance L3 from the specific pattern or character design to the body end of the ventral exterior and the length from the specific pattern or character design to the body end of the dorsal exterior. the direction of the distance L4 is to be the same as, disposable diapers, characterized in that. The vertical length L2 of the specific pattern or character design drawn on the ventral exterior body and the dorsal exterior body is the vertical length L2 of the ventral exterior body and the dorsal exterior body having different sizes. The disposable paper diaper according to claim 1, which is smaller than the length L1. The disposable disposable diaper according to claim 1 or 2 , wherein the folded length L5 at the body side end of the ventral exterior body and the folded length L6 at the body side end of the dorsal exterior body are the same. .. The invention according to claim 1 or 2 , wherein the ventral exterior body is folded back at the crotch side end portion of the ventral exterior body and the crotch side end portion of the dorsal exterior body without being provided with the folding back at the body side end portion. Disposable disposable diapers. The disposable disposable diaper according to claim 3 or 4 , wherein the folded portion is provided with a see-through prevention sheet for preventing see-through of a specific pattern or character design drawn on the folded portion. The disposable disposable diaper according to any one of claims 3 to 5 , wherein the folding is performed twice or more. The specific pattern or character design is printed on a sheet outside the ventral exterior or the ventral exterior on the ventral side, and outside the dorsal or dorsal exterior on the dorsal side. The disposable paper diaper according to any one of claims 1 to 6 , which is printed on the sheet of.

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