KR102508045B1 - Pants-type disposable nappies, and production method therefor - Google Patents

Abstract

An object of the present invention is to provide a plurality of pants-shaped disposable diapers with excellent appearance and a manufacturing method thereof.
A plurality of pants-shaped disposable diapers housed in one package, wherein each of the diapers is disposed between a pair of first decorative regions disposed at both edges in the width direction of the diaper and a first decorative region disposed in a central region in the width direction of the diaper. a pair of second decoration regions, the pair of first decoration regions having the same pattern or different patterns, the second decoration regions having a pattern different from that of the first decoration regions, and the second decoration regions in the width direction The dimension of the region is larger than the dimension of the first decoration region, and when the positional deviation of the cutting position when the diaper is individually cut when manufacturing the diaper is ±A mm, two adjacent to each other in the width direction The dimension of the first decorated area located between the diapers is 2A+10 mm or more, and the pattern of the second decorated area of at least one diaper is different from the pattern of the second decorated area of at least one other diaper.

Description

Pants-type disposable diaper and its manufacturing method {PANTS-TYPE DISPOSABLE NAPPIES, AND PRODUCTION METHOD THEREFOR}

The present invention relates to a pants-type disposable diaper and a manufacturing method thereof.

Conventionally, pants-type disposable diapers in which designs different from each other are printed on each of a plurality of diapers are known. For example, Patent Literature 1 discloses a method for manufacturing a disposable diaper in which at least three different designs are successively printed on the design printing surface along the entire length of the diaper body in the width direction, wherein the width of the diaper body is set to A and the design is printed. Disclosed is a method for manufacturing a disposable diaper having a relationship of A>B≥1/3A when the width of the surface is B.

Patent Document 1: Japanese Patent No. 4781820

According to the manufacturing method of Patent Document 1, designs different from each other can be printed on each of a plurality of diapers. However, since three types of designs with different widths are asymmetrically arranged on the entire surface of one diaper, it tends to give the same impression.

An object of the present invention is to provide a plurality of pants-type diapers having excellent appearance by improving conventional printed diapers and a manufacturing method thereof.

The present invention relates to a plurality of pants-shaped disposable diapers housed in one package, wherein each of the diapers includes a pair of first decorative regions disposed at both edges in the width direction of the diaper and disposed in a central region in the width direction of the diaper. a second decoration area positioned between the first decoration areas, the pair of first decoration areas having the same pattern or different patterns, the second decoration area having a different pattern from the first decoration area, and a width In the width direction, when the dimension of the second decoration region is larger than the dimension of the first decoration region in the direction, and the displacement of the cutting position when the diaper is individually cut when manufacturing the diaper is ± A mm, The dimension of the first decoration area located between two adjacent diapers is 2A+10 mm or more, and the pattern of the second decoration area of at least one diaper is the pattern of the second decoration area of at least one other diaper. different from

Further, the present invention relates to a method for manufacturing a pants-type disposable diaper having an absorbent body, comprising the steps of continuously supplying sheet materials in the machine direction, and the sheet materials, which are alternately arranged in the machine direction and orthogonal to the machine direction. A step of printing a pattern on each of the first and second print regions extending in the cross direction, a step of bonding an absorber to the central region of the second print region, and a sheet material with the absorber facing inside in the machine direction A step of folding the first print area in two along a folding line extending to, a step of obtaining an individual diaper by cutting the sheet material along a cutting line extending in a crossing direction of the first print area, and a step of storing a plurality of diapers in a package. wherein patterns of adjacent first print areas are the same or different from each other, patterns different from those of the first print area are printed on the second print area, and patterns of adjacent second print areas are different from each other; The dimension of the first printing area in the machine direction is 2A+10 mm or more when the positional deviation of the actual cutting position with respect to the planned cutting line is ±A mm.

In the present invention, a plurality of pants-type disposable diapers having an excellent appearance by having a width of first decoration regions located at both edges of the diaper greater than a misalignment width at the cutting position when the diaper is cut, and a method for manufacturing the same is provided.

The drawings show specific embodiments of the present invention and include optional and preferred embodiments as well as indispensable features of the invention.
1 is a diagram schematically showing a plurality of printed diapers according to a first embodiment.
2 is a diagram schematically showing a plurality of printed diapers according to a second embodiment.
3 is a diagram schematically showing a plurality of printed diapers according to a third embodiment.
4 is a diagram schematically showing a plurality of printed diapers according to a third embodiment.
Fig. 5 is a diagram schematically showing a method for manufacturing a plurality of printed diapers.

The following embodiments relate to a pants-type disposable diaper 1 (hereinafter referred to as diaper 1) shown in the accompanying drawings, and include optional and preferred features as well as indispensable features of the invention. Hereinafter, an example of an embodiment of the diaper 1 according to the present invention will be described with reference to the accompanying drawings.

<First Embodiment>

FIG. 1 is a diagram schematically showing a plurality of diapers 1 in a state before being cut along a planned cutting line 35 in a manufacturing process of diapers 1 described later. After the plurality of individually cut diapers 1 are integrated, the contents are stored in a see-through package 2 (see Figs. 3 and 4). Each diaper 1 has a pair of first decorative regions 11 arranged on both edge portions 14 in the width direction X of the diaper 1 and a central region in the width direction X. It has a second decorated area 12 disposed between the first decorated areas 11 . In the state before being cut along the planned cutting line 35, the first decoration area 11 continuously extends between the two diapers 1 adjacent to each other. Adjacent to each other in the width direction (X) when the displacement of the cutting position when the diaper 1 is individually cut along the cutting line 35 during manufacture of the diaper 1 is ±A mm The dimension of the first decorative area 11 positioned between the two diapers 1 is 2A+10 mm or more. A smaller value is preferable, and the dimension of the first decoration region 11 in the width direction X is typically greater than 10 mm and less than or equal to 50 mm, preferably greater than 10 mm and less than or equal to 30 mm. .

Since the dimension D2 of the second decorative region 12 is larger than the dimension D1 of the first decorative region 11 in the width direction X of the diaper 1, it is likely that the diaper 1 is worn. At times, the second decoration region 12 is conspicuous. The pair of first decoration regions 11 have the same pattern or different patterns. The second decoration area 12 has a pattern different from that of the first decoration area 11, and the pattern of the second decoration area 12 of at least one diaper corresponds to the second decoration area of at least one other diaper ( 12) is different from the pattern. In other words, different designs are applied to each of the plurality of diapers 1 . In this way, since the patterns of the second decoration area 12 are different from each other, diapers 1 having various patterns can be stored in one package 2, and products can be differentiated.

The patterns of the first decoration area 11 and the second decoration area 12 may be at least one of a uniform color, a color with gradual changes in shading, a color with gradual changes in shading, a picture, a letter pattern, and a geometric pattern, or these patterns. It is at least one or a combination of those that are a combination of. In the present invention, a picture means a design pattern of a natural object (eg, animals and plants, landscapes, etc.) or an artificial object (eg, a building, a car), and a character pattern is a pattern in which characters (eg, Chinese characters, numbers, and alphabets) are designed. it means. In addition, the color as used in the present invention means a chromatic color and an achromatic color. In addition, the color of the fabric of the sheet member (typically nonwoven fabric) constituting the diaper 1 is not included in the color referred to in the present invention. However, the fabric of the sheet member may be exposed to the background of the picture and character patterns.

In the diaper 1 of the present invention, since the pattern of the first decorative area 11 is unified across the proposed cutting line 35, the aesthetic appearance when cutting even if the position of the planned cutting line 35 is shifted. does not reduce In addition, since the first decoration area 11 having a different pattern from the second decoration area 12 is located on both sides of the diaper 1 in the width direction X, the appearance is good. The patterns of the pair of first decorative regions 11 located on both sides of the diaper 1 in the width direction X may be the same or different. If the pattern of the first decorative area 11 is different on the left and right sides of the diaper 1, the left and right sides are easy to recognize.

<Second Embodiment>

This embodiment differs from the first embodiment in that the diaper 1 further includes a third decorative region 13. As shown in FIG. 2 , the third decorative region 13 extends along the waist opening edge 15 of the diaper 1 in the width direction X, forming the first and second decorative regions 11 and 12 adjoin to The pattern of the third decoration area 13 is at least one of a uniform color, a color with gradual changes in gradation, a color with gradual changes in shading, a picture, a character pattern, and a geometric pattern, or a combination thereof. In addition, the pattern printed on the third decoration area 13 is different from the pattern of the second decoration area 12 and is the same as or different from the pattern of the first decoration area 11 . By providing the third decoration area 13, the appearance of the diaper 1 can be improved by making the second decoration area 12 stand out.

<Third Embodiment>

In this embodiment, any part of the first to third decorative regions 11, 12, 13 is exposed on at least one side surface 22 of the stack 21 in which the plurality of diapers 1 are overlapped, In addition, an aggregate pattern 23 different from the patterns of the first to third decoration regions 11, 12, and 13 appears. In this way, an aggregate pattern 23 different from the patterns of the first to third decoration regions 11, 12, and 13 appears on at least one side surface 22 of the integrated body 21 of the diaper 1. , can promote product differentiation. In the present invention, the side surface 22 of the integrated body 21 means all outer surfaces of the integrated body 21, and includes the top and bottom surfaces of the integrated body 21. In the example shown in FIG. 3 , patterns such as hollow ellipses, hollow quadrilaterals, and hollow hexagons of the second decoration region 12 are exposed on the side surface 22 on the horizontal side of the integrated body 21, forming a set pattern 23 of lozenges. is appearing In the example shown in FIG. 4 , a rectangular figure of the third decorative area 13 is exposed on the upper surface, which is one side surface 22 of the integrated body 21, and a letter “L” indicating the size of the diaper 1 is displayed on the package. It is visually recognized through (2). In addition, in FIG. 3 , the aggregate pattern 23 may be represented by using the first decoration area 11 exposed on the side surface 22 of the integrated body 21 . In addition, in FIG. 3, the drawing of the patterns of the first and third decoration areas 11 and 13 is omitted, and in FIG. 4, the drawing of the patterns of the first and second decoration areas 11 and 12 is omitted.

3 and 4 show cases in which the patterns of the first to third decoration regions 11, 12, and 13 are geometric patterns. However, as the pattern of the first to third decorative regions 11, 12, and 13, at least one of a uniform color, a color with gradually changing light and shade, a color with gradually changed light and shade, a picture, a letter pattern, and a geometric pattern, or these By appropriately selecting a combination of, on at least one side surface 22 of the integrated body 21 of the diaper 1, a set pattern 23 different from the patterns of the first to third decoration regions 11, 12, and 13 ) can, of course, be expressed. In addition, considering the folding method of the diaper 1 when stored in the package 2 and the direction of the diaper 1 when stored in the package 2, which side 22 of the package 2 It is possible to determine whether to display a set pattern 23 different from those of the first to third decoration areas 11, 12, and 13.

Next, with reference to Fig. 5, a method for manufacturing the plurality of printed diapers 1 will be described.

In the manufacturing method of the present invention, the supply step 51 of continuously supplying the sheet material 41 in the machine direction (MD), and the sheet material 41 are alternately arranged in the machine direction (MD), and the machine direction A printing process 52 of printing a pattern on each of the first print area 31 and the second print area 32 extending in a cross direction (CD) orthogonal to MD, and a second print area 32 The bonding step 53 of bonding the absorber 43 to the central region of the and folding the sheet material 41 along the folding line 36 extending in the machine direction (MD) with the absorber 43 on the inside A folding step 54 and a cutting step of obtaining an individual diaper 1 by cutting the sheet material 41 along the planned cutting line 35 extending in the cross direction (CD) of the first print area 31 ( 55) and a packaging step 56 of storing the plurality of diapers 1 in the package 2. Patterns of the first print areas 31 adjacent to each other in the machine direction (MD) are identical to or different from each other. A pattern different from that of the first print area 31 is printed in the second print area 32 located between the first print areas 31 adjacent to each other, and also adjacent to each other in the machine direction MD. The patterns of the 2 print areas 32 are different from each other. In addition, when the displacement of the actual cutting position with respect to the planned cutting line 35 is ±A mm, the dimension of the first printing area 31 in the machine direction MD is 2A+10 mm or more. Since the patterns printed on the first and second print areas 31 and 32 correspond to the patterns of the first and second decoration areas 11 and 12 described above, a detailed description thereof will be omitted. It is preferable to make the dimension D11 of the 1st print area 31 in the machine direction MD smaller than the dimension D12 of the 2nd print area 32 in the machine direction MD.

In addition, a third print area 33 extending in the machine direction MD may be provided along both side edges 42 of the sheet material 41 extending parallel to each other in the machine direction MD. The third print area 33 is adjacent to the first and second print areas 31 and 32 . In addition, the pattern printed on the third print area 33 is different from the pattern on the second print area 32 and is the same as or different from the pattern on the first print area 31 . Since the pattern printed on the third print area 33 corresponds to the pattern of the third decoration area 13 described above, a detailed description thereof will be omitted. The both side edges 42 of the sheet material 41 correspond to the opening edges 15 around the waist of the diaper 1 that are individually cut. 5 shows the first to third print areas 31, 32, and 33 with only color shading for ease of understanding, but it goes without saying that pictures or character patterns can be printed.

When a plurality of individually cut diapers 1 are overlapped to form an integrated body 21, at least one side surface 22 of the integrated body 21 has first to third printing regions 31, 32, 33) is exposed, and a set pattern 23 different from the pattern printed in the first to third print areas 31, 32, and 33 appears, so that the first to third printing Patterns can be printed on the regions 31, 32 and 33.

In the manufacturing method of the present invention, the width of the first printing area 31 cut by the proposed cutting line 35 extending in the cross direction (CD) is the position of the actual cutting position relative to the planned cutting line 35. Since it is larger than the misalignment width, the second print area 32 is not accidentally cut, and since the cut first print area 31 is located on both sides of the diaper 1 in the width direction X, the diaper ( 1) There is no damage to the exterior. Thereby, a plurality of diapers 1 having an excellent appearance are obtained. In addition, since the patterns of the adjacent second print regions 32 are different from each other, it is possible to include diapers 1 having various patterns in one package 2, thereby promoting differentiation from conventional products of the same kind. can If the third print area 33 is further provided, the appearance of the diaper 1 can be improved by making the pattern of the second print area 32 conspicuous. In addition, a set pattern 23 different from the pattern printed in the first to third print regions 31, 32, and 33 appears on at least one side surface 22 of the assembly body 21 of the diaper 1. If so, it is possible to further differentiate it from conventional products of the same kind.

Referring to Fig. 5, the manufacturing method of the diaper 1 of the present invention will be described in more detail. In the supply step 51 of continuously supplying the sheet material 41 in the machine direction MD, between the top sheet 44 and the back sheet 45 continuously traveling in the machine direction MD, the waist elastic member 46 and the leg elastic member 47 are bonded in a stretched state in the machine direction MD. The top sheet 44 is in contact with the wearer's skin of the diaper 1, and the back sheet 45 serves as an outer sheet of the diaper 1. For the top sheet 44, the back sheet 45, the waist elastic members 46 and the leg elastic members 47, materials known in the art to which the present invention pertains can be used.

In the printing step 52 of printing a pattern on each of the first to third print areas 31, 32, and 33 of the sheet material 41, an inkjet printer 61 connected to the control device 60 is used. Can be printed continuously. The control device 60 stores pattern data to be printed on the first to third print areas 31, 32, and 33 of each of the plurality of diapers 1, and inkjet printer 61 based on this data. Indicate the pattern to be printed on. The surface on which the pattern is printed on the sheet material 41 is not particularly limited. For example, in FIG. Although an example is shown, it is also possible to print on the back side. In addition, the third print area 33 is not essential in the manufacturing method of the present invention and can be omitted.

In the bonding step 53 of bonding the absorber 43 to the central region of the second print area 32, the absorber 43 known in the art to which the present invention belongs is bonded to the top sheet 44. In addition, the order of performing the printing step 52 of printing a pattern on the sheet material 41 and the bonding step 53 of bonding the absorber 43 to the central region of the second print area 32 is arbitrary, After bonding the absorber 43 to the sheet material 41, a pattern can also be printed.

In the folding step 54 of folding the sheet material 41 to which the pattern is printed and the absorber 43 is joined, the absorber 43 is turned inside along the folding line 36 extending in the machine direction (MD), Before folding the sheet material 41 back, the sheet material 41 located between the adjacent absorbers 43 is cut out to form the leg openings 16 of the diaper 1, and then the sheet material 41 is cut out. It is folded in two so that the edges 42 on both sides of (41) are overlapped with each other. In addition, the first print areas 31 are overlapped with each other, and the folded sheet materials 41 are welded or bonded to each other along the seal portion 37 extending in the cross direction (CD) of the first print areas 31. bonded by bonding. The dimension of the seal part 37 in the machine direction MD is at least 2 A mm, when the displacement of the actual cutting position with respect to the line 35 to be cut is ±A mm. The sealing portion 37 and the first printing region 31 may overlap each other, and the sealing portion 37 may have a larger size in the machine direction (MD) than the first printing region 31 in the machine direction (MD). , may be small.

In the cutting step 55 of obtaining the individual diaper 1 by cutting the sheet material 41 along the planned cutting line 35 extending in the cross direction CD of the first printing area 31, the sealing portion ( 37) is also cut in the cross direction (CD). As a result, an individual diaper 1 in which both edge portions 14 in the width direction X of the diaper 1 are sealed is obtained.

In the packaging step 56 of storing a plurality of individually cut diapers 1 in a package 2, the diapers 1 are folded in a predetermined folding manner and then stacked in a predetermined manner (FIG. 3, FIG. 4), and the contents are stored in a transparent package 2. At this time, a set pattern 23 different from the pattern printed in the first to third print areas 31 , 32 , and 33 may appear on at least one side surface 22 of the integrated body 21 . FIG. 5 shows an example in which trapezoidal aggregate patterns 23 different from the linear patterns printed on the third print area 33 appear on the side surface 22 of the integrated body 21 .

Although the present invention has been described based on the embodiments, the present invention is not limited to these and can be implemented with various changes. For example, the boundary between the first decoration area 11 and the second and third decoration areas 12 and 13 is not essential to be straight as in the illustrated example, but may be a curved line or a curved line. It may be an indistinct boundary that gradually changes. In addition, the method of printing a pattern is not limited to inkjet printing, and can also be printed by screen printing or offset printing.

The disclosure concerning the present invention described above can be summarized as at least the following matters.

A plurality of pants-shaped disposable diapers housed in one package, wherein each of the diapers is disposed between a pair of first decorative regions disposed at both edge portions in the width direction of the diaper and the first decorative regions disposed in a central region in the width direction of the diaper. The pair of first decoration regions have the same pattern or different patterns, the second decoration region has a different pattern from the first decoration region, and the pair of first decoration regions have a pattern different from that of the first decoration region, The size of the decoration area is larger than the size of the first decoration area, and when the diaper is manufactured and the displacement of the cutting position when the diaper is individually cut is ±A mm, two adjacent to each other in the width direction The dimension of the first decorated area located between the dog's diapers is 2A+10 mm or more, and the pattern of the second decorated area of at least one diaper is different from the pattern of the second decorated area of at least one other diaper.

The present invention disclosed in paragraph 0029 above can include at least the following embodiments. These embodiments can be adopted separately or in combination with each other.

(1) A third decorative region extends in the width direction along an edge of the diaper's waist-circumferential opening, the third decorative region is adjacent to the first and second decorative regions, and a pattern printed on the third decorative region is 2 It is different from the pattern of the decoration area, and is the same as or different from the pattern of the first decoration area.

(2) When a plurality of diapers are stacked, a part of the first to third decoration regions is exposed on at least one side surface of the stack of diapers, and the patterns of the first to third decoration regions are exposed. shows different aggregation patterns.

(3) The patterns of the first decoration area and the second decoration area are at least one of a uniform color, a color with gradually changing light and shade, a color with gradually changing light and shade, a picture, a letter pattern, and a geometric pattern, or a combination thereof. .

(4) The pattern of the third decoration region is at least one of a uniform color, a color with gradual changes in shading, a color with gradual gradual changes in shading, a picture, a character pattern, and a geometric pattern, or a combination thereof.

The disclosure concerning the present invention can be further summarized as follows.

A method for manufacturing a pants-type disposable diaper having an absorbent body, comprising: continuously supplying sheet materials in a machine direction; and, in the sheet materials, sheets alternately arranged in the machine direction and extending in a cross direction orthogonal to the machine direction. A process of printing a pattern on each of the first print area and the second print area, the process of bonding the absorber to the central area of the second print area, and the folding line extending in the machine direction with the absorber on the inside of the sheet material A step of folding the diaper in two along the first print area, a step of obtaining an individual diaper by cutting the sheet material along a cutting line extending in a direction crossing the first print area, and a step of storing the plurality of diapers in a package; Patterns in one print area are identical to or different from each other, patterns different from those in the first print area are printed in the second print area, and patterns in adjacent second print areas are different from each other, and the actual When the displacement of the cutting position of is ±A mm, the dimension of the first printing area in the machine direction is 2A+10 mm or more.

The present invention disclosed in paragraph 0031 above can include at least the following embodiments. These embodiments can be adopted separately or in combination with each other.

(1) In the sheet material, a third print area extends along both edges extending in parallel to each other in the machine direction, the third print area is adjacent to the first and second print areas, and the third print area The pattern to be printed is different from the pattern of the second print area and is the same as or different from the pattern of the first print area.

(2) When a plurality of diapers are overlapped to form an integrated body, a part of the first to third printed areas is exposed on at least one side surface of the integrated body, and a pattern printed on the first to third printed areas Patterns of the first to third print areas are printed so that a set pattern different from the first to third print areas appears.

(3) The pattern of the first printing area and the second printing area is at least one of a uniform color, a color with gradually changing light and shade, a color with gradually changing light and shade, a picture, a letter pattern, and a geometric pattern, or a combination thereof. .

(4) The pattern of the third printing area is at least one of a uniform color, a color with a gradual change in shading, a color with a gradual change in shading, a picture, a character pattern, and a geometric pattern, or a combination thereof.

1 disposable diaper
2 packages
11 first decoration area
12 Second decoration area
13 Third decoration area
14 Edges on both sides of the diaper
15 body circumference opening edge
21 aggregate
22 Side of the Aggregate
23 set patterns
31 first printing area
32 second printing area
33 third printing area
35 Cutting line
41 sheet material
42 Side edge of sheet material
43 absorber
51 supply process
52 Printing process
53 bonding process
54 folding process
55 cutting process
56 Packaging process
D1 Width direction dimension of the first decorative area
D2 Dimensions in the width direction of the second decorative area
X width direction
MD machine direction
CD cross direction

Claims (10)

A plurality of pants-type disposable diapers stored in one package,
Each of the diapers includes a pair of first decorative regions disposed at both edge portions in the width direction of the diaper, and a second decorative region disposed in a center region in the width direction and positioned adjacently between the first decorative regions; an absorbent body extending from a waist region of a diaper to a crotch region, and a third decorative region extending in a width direction along an edge of an opening around a waist of the diaper;
The second decoration region is located at least in the region where the absorber exists,
The pair of first decoration regions have the same pattern or different patterns,
The second decoration area has a pattern different from that of the first decoration area;
The third decoration area is adjacent to the first and second decoration areas,
A pattern printed on the third decoration area is different from a pattern of the second decoration area and different from a pattern of the first decoration area;
Patterns of the pair of first decoration regions are different from each other,
A dimension of the second decoration region in the width direction is larger than a dimension of the first decoration region;
A pattern of the second decorated area of at least one diaper is different from a pattern of the second decorated area of at least one other diaper. The method of claim 1, wherein, when a plurality of diapers are overlapped, a portion of any one of the first to third decorative regions is exposed on at least one side surface of the stack of diapers, and the first to third decorative regions are exposed. -A diaper showing an aggregate pattern different from the pattern of the third decoration area. The method according to claim 1 or 2, wherein the patterns of the first decoration area and the second decoration area are uniform colors, gradually changing colors, gradually changing colors, pictures, letter patterns, and geometry. A diaper in one or more of these shapes, or a combination thereof. The method according to claim 1 or 2, wherein the pattern of the third decoration area is at least one of a uniform color, a color with gradually changing light and shade, a color with gradually changed light and shade, a picture, a letter pattern, and a geometric pattern, or these A combination of diapers. delete delete delete delete delete delete

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