JP2014054422A - Clothing article using composite shrinkable member and method for manufacturing clothing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a clothing article capable of differentiating characteristics of a waist gather part from fit-gather parts.SOLUTION: The method for manufacturing the clothing article including a waist gather part 10 and fit-gather parts 11 comprises: a step A of aligning two long composite shrinkable members 2 to be the waist gather part 10 in parallel to each other; a step B of aligning panel materials 3 to be the fit-gather parts 11 on inside ends of the respective composite shrinkable members 2 along the longitudinal direction of the composite shrinkable members 2, and joining them with the inside ends of the composite shrinkable members 3; a step C of laying an absorber 6 across the panel materials between both composite shrinkable members 2 and joining overlapped portions of the panel materials 3 and the absorber 6; and a step D of folding the absorber 6 in half to superpose both composite shrinkable member 2, and cutting both shrinkable members 2 between adjacent absorbers 6 along the orthogonal direction to the longitudinal direction of the composite shrinkable members 2.

Description

  The present invention relates to a wearing article such as a disposable diaper, which is formed by providing two long composite shrinkable members in parallel with each other and an absorbent body between the two composite shrinkable members, and a method for producing the worn article.

A wearing article such as a disposable diaper is provided with an absorbent body on the inside, and includes a waist gather portion positioned around the waist of the wearer and a fit gather portion positioned between the waist and the crotch. A method for manufacturing such a wearing article is disclosed in Patent Document 1, for example.
First, two long composite contracting members are arranged in parallel with each other in a state where they are extended against an elastic restoring force. A plurality of absorbers are spanned between the two composite contracting members at intervals, and the composite contracting member and the absorber are joined. Between adjacent absorbers, arc-shaped notches are formed at the inner edges of the two composite contracting members facing each other. Next, the absorbent body is folded in two, the two composite shrinkable members are overlapped with each other, and the two overlapped composite shrinkable members are cut at an intermediate portion between adjacent absorbent bodies to obtain a diaper. The composite contracting member forms a waist gather portion and a fit gather portion of the diaper, and the notch forms a leg hole into which the wearer's leg is fitted. The composite contracting member contracts, and the waist gather portion lightly tightens the wearer's waist to prevent deviation from the waist.

Japanese Patent No. 4512214

In the wearing article manufactured by the method described in Patent Document 1, since the waist gather portion and the fit gather portion are formed from the same composite contraction member, both gather portions have the same touch and air permeability. However, in reality, there are cases where it is desired that the waist gather portion and the fit gather portion have different touch and breathability. Alternatively, there are cases where it is desired to change the colors and the like between the waist gathers and the fit gathers in view of design requirements. The conventional method for manufacturing a worn article cannot meet such a requirement.
Further, the composite contracting member contracts by an elastic restoring force when the worn article is completed. However, there are cases where symbols and characters such as cartoons are displayed on the outside of the absorber, that is, the non-skin surface, and if the fit gather facing the display location contracts, the symbols and characters are difficult to read. there were.
Furthermore, there is a problem that wrinkles are generated in the absorbent body due to the shrinkage force of the fit gathers, and transmission is likely to occur.
The objective of this invention is providing the manufacturing method of the wearing article which can change the characteristic of a waist gather part and a fit gather part. It is another object of the present invention to make it easier to see the display portion such as symbols on the outside of the absorbent body and to prevent wrinkles from occurring in the absorbent body.

The manufacturing method of the wearing article provided with a waist gather part and a fit gather part is a step A in which two long composite shrinkable members to be the waist gather part are arranged in parallel with each other;
A step B in which a plurality of panel materials to be the fit gathers are arranged along the longitudinal direction of the composite contraction member and joined to the inner end of the composite contraction member at the inner end of each composite contraction member;
Step C for bridging the absorber between adjacent composite material between the two composite shrinkable members, and joining the overlapping portion of the panel material and the absorber;
A step D in which the absorbent body is folded in two, the composite shrinkable members are overlapped, and the composite shrinkable members are cut along a direction perpendicular to the longitudinal direction of the composite shrinkable member between adjacent absorbent bodies; .
In addition, a display area to which a display element is attached is formed at least on the absorber so as not to cover the composite contracting member or the panel material.

In the method for manufacturing a worn article according to the present invention, the composite shrinkable member that becomes the waist gather portion and the panel material that becomes the fit gather portion are separate members. Accordingly, the characteristics of the waist gather portion and the fit gather portion, for example, touch and color can be changed.
Moreover, the part which does not cover with the said composite shrinkable member or the said panel material on an absorber is not expanded-contracted by a composite shrinkable member or a panel material. Therefore, it is possible to make the display elements easy to see by forming a display area in which the display elements such as symbols and characters that are visually recognized by the user are attached.

It is a perspective view of a paper diaper. It is a disassembled perspective view of an absorber. It is a top view of a composite contraction member. It is a figure which shows the manufacturing process of a paper diaper. It is a figure which shows the manufacturing process of a paper diaper. (a), (b) is a figure which shows the manufacturing process of a panel material. It is an enlarged view of a non-shrink area | region. It is a figure which shows another manufacturing process of a paper diaper. (a), (b) is a figure which shows another manufacturing method of a composite shrinkable member, (c) is sectional drawing which fractured | ruptured (b) in the surface containing a DD line.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a wearing article, specifically, a paper diaper 1 according to the present embodiment. As is well known, the disposable diaper 1 includes a waist gather portion 10 located around the waist of the wearer and a fit gather portion 11 located between the waist and the crotch, and a lower end portion of the fit gather portion 11. Leg holes 12 are formed in the front. An absorbent body 6 that is folded in two swells, that is, is attached with the fold line facing downward, at an intermediate portion in the lateral direction of the fit gather portion 11. The outside of the absorbent body 6 is covered with a protective sheet 4 made of a nonwoven fabric.
The waist gather part 10 is formed by the composite contraction member 2 that expands and contracts along the lateral direction. The fit gather part 11 is formed from the panel material 3 which consists of a nonwoven fabric which has a stretching property, and expands and contracts when it is worn by the wearer. In order to prevent stuffiness in the disposable diaper 1, it is preferable that the panel material 3 which comprises the fit gather part 11 has air permeability.
In this way, by forming the waist gather portion 1 and the fit gather portion 11 so as to be stretchable, the waist and the portion between the waist and the crotch can be brought into close contact with the wearer and the fit can be improved. Moreover, the wearer can wear it while standing. For this reason, the paper diaper 1 is used not only for infants but also for various purposes such as walking for adults.

FIG. 2 is an exploded perspective view of the absorber 6. The absorbent body 6 is formed by laminating a top sheet 60 made of a liquid-permeable nonwoven fabric, a core body 61 in which a water-absorbing polymer is mixed with a pulp material, and a liquid-impermeable back sheet 62. A display element 63 to be described later is attached to the back surface of the back sheet 62. The absorbent body 6 is attached to the composite contracting member 2 so that the top sheet 60 faces the wearer's skin side and the back sheet 62 faces the wearer's non-skin side. Although a plastic film is used as the back sheet 62, when a pair of trousers or the like is worn from the top of the paper diaper 1, a frictional force is easily generated between the trousers and the like. Therefore, the protective sheet 4 is put on the outer side of the absorbent body 6 to improve the ease of rubbing with pants. A leak-proof wall called a cuff that prevents urine and the like from leaking out of the absorber 6 may be provided on the top sheet 60.
FIG. 3 is a plan view of the composite contracting member 2 constituting the waist gather portion 10. The composite shrinkable member 2 includes two long sheet materials 20 that are aligned in the longitudinal direction, and a plurality of elastic members 21 that extend along the longitudinal direction of the two sheet materials 20 are substantially parallel to each other. It is formed sandwiched between the materials 20. The sheet material 20 is made of non-woven fabric, and the elastic member 21 is specifically thread rubber.

(Method of manufacturing worn articles)
4 and 5 are diagrams showing a manufacturing process of the disposable diaper 1. FIG. The manufacturing process includes processes from stage 1 to stage 5. First, on the stage 1, the two bands of the composite contracting members 2 are arranged so as to be parallel to each other in a state where they are extended against the restoring force of the elastic member 21. Next, a plurality of protective sheets 4 are spanned across the two composite contracting members 2 at intervals, and the composite contracting member 2 and both ends of the protective sheet 4 are joined. For the joining, heat fusion or an adhesive such as a hot melt material may be used. For each of the joining operations described below, heat fusion or bonding with an adhesive is used.
Next, on the stage 2, the panel material 3 that becomes the fit gather portion 11 is joined so as to cover the side portion of the adjacent protective sheet 4 and the inner end portion of the composite shrinkable member 2. The panel material 3 is formed from a rectangular base material 30. Next, on the stage 3, an arc-shaped notch 31 that forms the leg hole 12 is formed in the inner end portion of the base material 30.

Next, on the stage 4 in FIG. 5, the absorbent body 6 is placed so as to overlap the protective sheet 4, and the peripheral edge of the absorbent body 6 is bonded onto the protective sheet 4 and the panel material 3. The back sheet 62 of the absorber 6 is joined so as to cover the side portion of the panel material 3. As described above, since the panel material 3 is joined to the protective sheet 4, the panel material 3 is sandwiched between the back sheet 62 and the protective sheet 4. Thereby, even if the panel material 3 used as the fit gather part 11 expands and contracts, possibility that the panel material 3 will remove | deviate from the absorber 6 and the protection sheet 4 is reduced. In the stage 4, the back sheet 62 and the top sheet 60 are shown smaller than the protective sheet 4, but this is for convenience of illustration, and the back sheet 62 and the top sheet 60 are equal to or greater than the protective sheet 4. It may be a size.
Thereafter, the absorbent body 6 is folded in half as shown in the stage 5 in FIG. 5 with the imaginary line AA passing through the intermediate portion in the width direction between the two composite contracting members 2 as a fold. The composite shrinkable member 2 and the panel material 3 are cut by joining along an imaginary line BB which is an intermediate portion between adjacent absorbers 6. Finally, the paper diaper 1 shown in FIG. 1 is obtained. The elastic member 21 (see FIG. 3) that has been stretched returns to elasticity, and the composite contracting member 2 contracts so that the waist gathers 10 lightly tightens the waist of the wearer.

If the disposable diaper 1 is for infants, for example, a character such as a cartoon may be attached to the outside. For adults, identification characters such as “front” and “rear” may be attached to the outside of the disposable diaper 1. Such display elements such as comics and identification characters are preferably easy to see. However, for example, even when a display element is attached on the composite shrinkable member 2 that becomes the waist gather portion 10 and / or the panel material 3 that becomes the fit gather portion 11, the waist gather portion 10 and / or the fit gather portion 11 shrinks. This makes it difficult to see such display elements. Therefore, in the paper diaper 1 of this embodiment, the display element is attached | subjected to the following locations.
As shown in the stage 4 of FIG. 5, there is a portion HR that does not cover the composite contracting member 2 on the absorber 6 or the protective sheet 4. This portion HR is not easily affected by expansion and contraction by the composite contracting member 2. Therefore, if a display area to which display elements such as symbols and characters (reference numeral 63 in FIG. 2) are added is formed at this location HR, the display elements 63 can be easily seen. In FIG. 2, a star shape is shown as the display element 63, but this is an example and the present invention is not limited to this.

  In the present embodiment, the composite shrinkable member 2 that becomes the waist gather portion 10 and the panel material 3 that becomes the fit gather portion 11 are separate members. Therefore, the characteristics of the waist gather part 10 and the fit gather part 11, for example, touch, color, and air permeability can be made different. Here, the panel material 3 is made of a stretchable nonwoven fabric, but may be a laminate of a nonwoven fabric on a stretchable film, or a nonwoven fabric in which a string-like elastic member, for example, a thread rubber is bonded together.

(Manufacturing method of panel material)
As shown in the stage 3 of FIG. 4, the panel material 3 is configured by providing a notch 31 in the base material 30. Here, if the notch 31 is directly formed in the base material 30 when the panel material 3 is formed, the nonwoven fabric for the notch 31 is wasted. In view of this point, the applicant proposes a method for manufacturing the panel material 3 shown below.
FIG. 6A is a diagram showing a manufacturing process of the panel material 3. First, a stretch nonwoven fabric strip 32 is prepared, and a sinusoidal cut 35 is provided at the center of the strip 32 in the width direction with a cutter or the like. An imaginary line that is parallel to the width direction of the strip 32 and connects the peak of the notch 35 and the edge of the strip 32 far from the top of the peak is set as W1. Since the cut 35 is wavy, a plurality of virtual lines W1 are set. When the strip material 32 is cut along every other virtual line W1 adjacent to one virtual line W1, the portion R1 surrounded by the cutting line and the cut 35 on the virtual line W1 becomes the panel material 3. That is, the notch 35 becomes the edge of the notch 31.
Thus, by forming the panel material 3, the nonwoven fabric of the notch 31 part is not wasted. Therefore, the manufacturing cost of the panel material 3 can be reduced. Moreover, since the amount of non-woven fabric to be discarded can be reduced, it is an environmentally friendly manufacturing method. Although the notch 35 has a sine wave shape, the waveform of the notch 35 is determined by the peripheral shape of the leg hole 12 and is not limited to a sine wave shape. For example, the shape which connected the mountain shape to the horizontal direction may be sufficient.

  Further, as shown in FIG. 6B, an imaginary line parallel to the width direction of the strip 32 and passing through the top of the notch 35 is set as W2, and the strip 32 along the imaginary line W2 is set. May be cut. A portion R2 surrounded by the cutting line and the cut 35 on the virtual line W2 becomes a half of the panel material 3. If the two halves are joined side by side so that the mountains meet, the panel material 3 is obtained.

Nonwoven fabrics used for the sheet material 20 constituting the panel material 3, the protective sheet 4, and the composite shrinkable member 2 are air-through nonwoven fabric, spunlace nonwoven fabric, spunbond nonwoven fabric, and melt blown from the viewpoint of beauty of appearance and touch. A nonwoven fabric or the like is used. Of course, other non-woven fabrics may be used. Further, the non-woven fabric used for the sheet material 20 constituting the panel material 3, the protective sheet 4, and the composite shrinkable member 2 may have the same or different forming material.
Examples of the elastic member 21 used for the composite shrinkable member 2 include synthetic rubber such as styrene-butadiene, butadiene, isoprene, and neoprene, natural rubber, stretchable polyolefin, and polyurethane. The elastic member 21 is not limited to thread rubber, but may be a string-like body such as flat rubber, and the cross section may be any of a rectangle, a square, a circle, and a polygon.

(Modified example of paper diaper)
As shown in an enlarged view in FIG. 7, a non-shrinkable region RY in which the shrinkage force of the elastic member 21 does not occur may be provided in a portion where the absorber 6 or the protective sheet 4 overlaps on the composite shrinkable member 2. Thereby, display elements, such as a pattern provided in the non-skin surface of the absorber 6 or the protection sheet 4, do not shrink | contract, and it becomes easy to see.
The non-shrinkable region RY can be formed as an empty region where the elastic member 21 is not provided. Specifically, before the absorbent body 6 is disposed, the contraction force in the longitudinal direction of the elastic member 21 is removed by pressurizing or heating the portion of the composite shrinkable member 2 where the absorbent body 6 or the protective sheet 4 overlaps. Thus, the non-stretchable region RY can be formed. At this time, as a means for pressurizing or heating, a roll (not shown) having protrusions and blades provided in a predetermined pattern at intervals along the axial direction and / or circumferential direction is provided. It may be used. It is desirable to substantially remove the contraction force by pressing or heating the composite contraction member 2 between the roll and the roll facing the roll to finely cut the elastic member 21.

When the protective sheet 4 is not used for the paper diaper 1 or when the protective sheet 4 is previously laminated on the non-skin side surface of the back sheet 62 of the absorbent body 6, the step 1 in FIG. 4 is omitted. That is, as shown in the stage 3 in FIG. 8, the two long composite contracting members 2 to be the waist gathers 10 are arranged so as to be parallel to each other. Next, a plurality of panel members 3 to be the fit gather portions 11 are arranged along the longitudinal direction of the composite shrinkable member 2 at the inner end of each composite shrinkable member 2 and joined to the inner end of the composite shrinkable member 2. . A notch 31 is formed at the inner end of the panel material 3.
Next, as shown in the stage 4, the absorber 6 is bridged between the adjacent panel members 3 between the two composite contracting members 2, and the overlapping portion of the panel member 3 and the absorber 6 is joined. Thereafter, the absorbent body 6 is folded in half, and the composite shrinkable member 2 and the panel material 3 are cut at the intermediate portion of the adjacent absorbent bodies 6, and the description is omitted.

The composite shrinkable member 2 is configured by sandwiching an elastic member 21 between two sheet materials 20. However, the two sheet materials 20 may be displaced from each other. Therefore, as shown in FIG. 9A, a plurality of elastic members 21 extending along the longitudinal direction of the sheet material 20 are joined substantially parallel to each other on the lower half of one sheet material 20. Thereafter, as shown in FIG. 9B, the sheet material 20 is folded in half along the center line CC in the width direction of the sheet material 20 so that the elastic member 21 is on the inner side. The upper half and the lower half are joined to obtain the composite shrinkable member 2. Thereby, possibility that the sheet | seat material 20 which pinches | interposes the elastic member 21 will mutually shift can be reduced.
FIG.9 (c) is sectional drawing which fractured | ruptured the composite shrinkable member 2 of FIG.9 (b) in the surface containing DD line. In such a composite contracting member 2, the fold portion (the upper end portion in FIG. 9C) is rounded. Thereby, when this composite contraction member 2 is used for the waist gathers part 10, the touch with respect to a wearer's waist | hip | lumbar part can be improved.

  In the said embodiment, although the paper diaper was illustrated as a wearing article using the composite shrinkable member 2, it is not limited to this, For example, sanitary shorts etc. may be sufficient.

  The present invention is useful when applied to a worn article such as a disposable diaper.

DESCRIPTION OF SYMBOLS 1 Paper diaper 2 Composite shrinkable member 3 Panel material 4 Protection sheet 6 Absorber 10 Waist gather part 11 Fit gather part

Claims (5)

It is a manufacturing method of a wearing article provided with a waist gather part and a fit gather part,
Step A for arranging the two long composite shrinkage members to be the waist gathers in parallel with each other;
A step B in which a plurality of panel materials to be the fit gathers are arranged along the longitudinal direction of the composite shrinkable member at the inner end of each composite shrinkable member, and joined to the inner end of the composite shrinkable member;
Step C for bridging the absorber between adjacent composite material between the two composite shrinkable members, and joining the overlapping portion of the panel material and the absorber;
A step D in which the absorbent body is folded in two, the composite shrinkable members are overlapped, and the composite shrinkable members are cut along a direction perpendicular to the longitudinal direction of the composite shrinkable member between adjacent absorbent bodies; The manufacturing method of the wearing article. The manufacturing method of the wearing article according to claim 1, wherein a display region to which a display element is attached is formed at least on the absorbent body at a portion not covered with the composite contracting member and / or the panel material. . Between the step A and the step B, a step of bridging a protective sheet over both composite shrinkable members is provided, the absorber is placed on the protective sheet, and the panel material is partially attached to the protective sheet The method for manufacturing a worn article according to claim 1, wherein a part of the panel material is sandwiched between the protective sheet and the absorber. The fit gather part is provided with a leg hole into which a wearer's foot is fitted, and the panel material is provided with a notch to be the leg hole,
The panel material is a step of forming a wavy notch serving as a peripheral edge of the notch in a center portion in the width direction of a long strip.
A step of setting a plurality of virtual lines that are parallel to the width direction of the strip and pass through the cut ridges;
The manufacturing method of the wearing article in any one of Claims 1 thru | or 3 formed in the process of cut | disconnecting a strip | belt material along a virtual line. A waist gather part and a fit gather part are provided, and the lower end part of the fit gather part is provided with an absorbent body that is folded in two and has a fold downward.
The absorbent article is a worn article in which both end portions are joined to a waist gather portion, and the fit gather portion is formed of a member different from the waist gather portion.

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