CN101909564A

CN101909564A - Method of manufacturing disposable wearing article

Info

Publication number: CN101909564A
Application number: CN2009801019375A
Authority: CN
Inventors: 梅林丰志
Original assignee: Zuiko Corp
Current assignee: Zuiko Corp
Priority date: 2008-05-28
Filing date: 2009-05-11
Publication date: 2010-12-08
Anticipated expiration: 2029-05-11
Also published as: CN101909564B; JPWO2009144875A1; JP5593496B2; WO2009144875A1

Abstract

Disclosed is a method of manufacturing a disposable wearing article having a first girth region (S1) that covers part of the girth of the wearer, a second girth region (S2) that covers the remaining part of the girth of the wearer, and a core part (C) that covers the crotch of the wearer. The method of manufacturing comprises: a step for producing a composite sheet obtained by arranging a pull-up elastic member (FU), for preventing the wearing article from slipping downward when being worn, on a conveyed web along a predetermined corrugation; a step for dividing the composite sheet into a first divided sheet and a second divided sheet; a step for moving the two divided sheets relative to a lateral direction (D) orthogonal to a longitudinal direction (L); a step for shifting the phase of the first divided sheet and second divided sheet relative to each other in the direction of conveyance thereof; and a step for arranging the core portion (C) to produce a laminated body.

Description

The manufacture method of disposable wearing article

Technical field

The present invention relates to the manufacture method of disposable diaper, medicated underpants disposable wearing articles such as (pants).

Background technology

In the past, proposed to have a kind of technical scheme that disposes the wearing article of the elastomeric element that is used to improve fit.

Patent documentation 1: Japanese kokai publication hei 2006-122456 (summary)

Patent documentation 2:W02007/069496 (summary)

Summary of the invention

In the diaper of patent documentation 1, dispose elastomeric element in the mode of bending, make thus and come near part between hip near the central authorities on the width of the diaper waist opening at the front and rear body junction surface of waistline.The eclipsed part of above-mentioned elastomeric element and absorbent main body, owing to can in this absorbent main body, produce fold, thereby be unwanted part.Therefore, after above-mentioned elastomeric element was disposed at fabric (web), the middle section on width cut off it, in this elastomeric element and absorbent main body overlapping areas, can not show the contractility of this elastomeric element thus.

But the above-mentioned elastomeric element of central authorities that needs to cross the width of diaper in the fabrication stage is disposed at fabric at least, so the elastomeric element of this part becomes waste.

In the diaper of patent documentation 2, disclose following method: be at fabric and hummock dispose elastomeric element, further cut off fabric along moving direction with the amplitude littler than the amplitude of this elastomeric element.

Here, when the body fluid absorbability absorbent body of wearer, may cause diaper to glide because of the weight of this body fluid.But in the diaper of patent documentation 2, above-mentioned elastomeric element only prevents that as being used to the lower limb week elastomeric element that width leaks from working, and therefore can not prevent the downslide of diaper.

Therefore, the object of the present invention is to provide a kind of manufacture method of the wearing article that can prevent that diaper from gliding and can waste material.

The manufacture method of wearing article of the present invention, it comprises: the first body portion of the part of the body of covering wearer; The second body portion of other parts of the body of covering wearer; With center (core) portion of the hip thigh that covers wearer, the manufacture method of this wearing article is characterised in that, comprising: carry on throughput direction continuously and have an operation of the zonal fabric of first side edge part and second side edge part; Make the operation of composite sheet: will be on the length direction of above-mentioned fabrics continuously and when being used for preventing to dress wearing article landing downwards on draw with elastomeric element along the contoured configuration of regulation above-mentioned fabrics in above-mentioned conveying, a plurality of first tops of above-mentioned waveform are configured near above-mentioned first side edge part or this first side edge part, and the second adjacent top at above-mentioned first top is configured near above-mentioned second side edge part or this second side edge part; Cut off operation, cut off in the operation at this, by the above-mentioned composite sheet in the above-mentioned conveying being cut off along successive line of cut on the length direction of above-mentioned composite sheet, be divided into first cutting plate with above-mentioned first side edge part and above-mentioned a plurality of first tops and second cutting plate, and cut off drawing with elastomeric element on above-mentioned with above-mentioned second side edge part and above-mentioned a plurality of second tops; Make above-mentioned two cutting plates in the operation that relatively moves with the orthogonal width of above-mentioned length direction according to enlarging the mode that plays the distance till above-mentioned second side edge part from above-mentioned first side edge part; The operation that phase place on the moving direction of above-mentioned first cutting plate and above-mentioned second cutting plate is staggered mutually; Dispose the operation that above-mentioned central part obtains laminated body with mode according to leap first area and second area, wherein, the first area is meant that in above-mentioned first cutting plate not disposing between above-mentioned first top and first top draw the zone with elastomeric element, and second area is meant in above-mentioned second cutting plate zone of drawing the usefulness elastomeric element that do not dispose between above-mentioned second top and second top.

According to this method, be provided with on the length direction of fabric continuously and when being used to prevent to dress wearing article landing downwards on draw and use elastomeric element, therefore can prevent to cause the wearing article downslide because of the weight of the body fluid of wearer.

In addition, draw on above-mentioned along the contoured configuration of regulation and to use elastomeric element, and make first cutting plate and the phase place that has on the moving direction of second cutting plate at second top staggers mutually with first top, central part is configured in does not dispose the zone of drawing thus with elastomeric element.Thereby elastomeric element is not easy to produce waste.

Here, " wearing article " is meant the semi-finished product and the finished product of disposable wearing articles such as comprising disposable diaper, medicated underpants.

In the preferred embodiment of above-mentioned manufacture method, above-mentioned each cutting plate also comprises: above-mentioned each body portion along waist in waistline side upwardly extending waist elastic members; Extend along the waistline direction and be arranged on waist bottom elastomeric element in the zone of waist bottom in above-mentioned each body portion, in making the operation of above-mentioned composite sheet, also comprise: dispose the operation of drawing the usefulness elastomeric element on above-mentioned at least in the mode that the width updip of above-mentioned cutting plate is tiltedly crossed two parts of above-mentioned waist bottom elastomeric element according to drawing on above-mentioned with elastomeric element.

Under the situation of this example, on draw with elastomeric element and cross waist bottom elastomeric element FB obliquely, can prevent that therefore diaper and medicated underpants from gliding.

That is, on draw with elastomeric element compare with waist bottom elastomeric element with bigger angle of inclination to each body portion apply oblique upper to power, thus each body portion is sling, thereby diaper, medicated underpants can be remained on the waist of wearer closely.

In the preferred embodiment of above-mentioned manufacture method, also comprise: according to the part at the part at above-mentioned first top and above-mentioned second top mutually near so that eclipsed mode on the length direction of above-mentioned central part in the middle of the place above-mentioned laminated body is folding and build up two-layer operation; According to the roughly banded mode in above-mentioned first top and above-mentioned second top with become in above-mentioned first cutting plate end on the waistline direction of the above-mentioned first body portion the position, with above-mentioned second cutting plate in become the operation that the position of the end on the waistline direction of the above-mentioned second body portion is bonded with each other; With along above-mentioned width above-mentioned first cutting plate and second cutting plate are cut off, and cut the operation at the position that becomes each wearing article from above-mentioned laminated body, above-mentioned central part is included in the shank elastomeric element that extends on the above-mentioned width, in obtaining the operation of above-mentioned laminated body, according to disposing above-mentioned central part with the banded mode of elastomeric element with drawing on above-mentioned with the above-mentioned cut end of elastomeric element and the above-mentioned shank of above-mentioned central part, thus, form cyclic Hookean region by drawing with elastomeric element and above-mentioned shank on above-mentioned wearing article above-mentioned with elastomeric element.

Under the situation of this example, by forming above-mentioned cyclic Hookean region, can improve the function that prevents that wearing article from gliding, and can prevent the leakage of body fluid reliably.

Description of drawings

Fig. 1 is the approximate three-dimensional map of an example of the wearing article produced according to the manufacture method of wearing article of the present invention of expression.

Fig. 2 A is the sectional view of the IIA-IIA line of this wearing article shown in Fig. 2 B, and Fig. 2 B is the general view that this wearing article expansion is obtained.

Fig. 3 A is the summary lateral view of the manufacture method of expression composite sheet, and Fig. 3 B is the general view of the manufacturing process of expression wearing article.

Fig. 4 is the general view of the manufacturing process of expression wearing article.

Fig. 5 is the general view of the manufacturing process of expression wearing article.

Fig. 6 is the general view of the manufacturing process of expression wearing article.

Fig. 7 is the general view of the manufacturing process of expression wearing article.

Fig. 8 is the general view of the manufacturing process of expression wearing article.

Description of reference numerals:

10 laminated body

The C central part

The CL line of cut

The D width

The E1 first area

The E2 second area

The cyclic Hookean region of FA

FB waist bottom elastomeric element

FL shank elastomeric element

Draw on the FU and use elastomeric element

The FW waist elastic members

The L length direction

The S1 first body portion

The S2 second body portion

The W fabric

W1 first cutting plate

W2 second cutting plate

W1s first side edge part

W2s second side edge part

The Ws composite sheet

The X throughput direction

α 1 first top

α 2 second tops

The specific embodiment

According to the explanation of the following preferred embodiment that carries out with reference to accompanying drawing, can more clearly understand the present invention.But embodiment and accompanying drawing only are used for diagram and explanation, are not to be used to determine scope of the present invention.Scope of the present invention is only determined by the scope of claim.In the accompanying drawings, identical parts number is represented identical or suitable part in a plurality of accompanying drawings.

Embodiment 1

Below, with reference to accompanying drawing one embodiment of the present of invention are described.

Fig. 1, Fig. 2 A and Fig. 2 B represent an example of the wearing article that produces according to this manufacture method.

As shown in Figure 1, the wearing article of present embodiment 1 forms pants type, comprising: first S1 of body portion of the part of the body portion of covering wearer; Second S2 of body portion of other parts of the body portion of covering wearer; Central part C with the hip thigh that covers wearer.

At above-mentioned each S1 of body portion, S2, be provided with in parallel to each other: along a plurality of waist elastic members FW of the waist of wearer; With a plurality of waists bottom elastomeric element FB, it extends along waistline direction B at each S1 of body portion, S2, and is configured in the zone of the bottom of waist at least of wearer.

Shown in Fig. 2 B, the above-mentioned wearing article after the expansion is made of first S1 of body portion, second S2 of body portion and central part C, forms so-called hourglass shape.Be provided with absorber C1 at above-mentioned central part C.

At above-mentioned first S1 of body portion and second S2 of body portion, a plurality of waist elastic members FW and a plurality of waists bottom elastomeric element FB along its length direction L are arranged with the arranged spaced of regulation.The area configurations that disposes above-mentioned waist bottom elastomeric element FB is: above-mentioned drawing with elastomeric element FU on each tiltedly crossed roughly most waist bottom elastomeric element FB among the elastomeric element FB of a plurality of waists bottom in the width D updip of first S1 of body portion and second S2 of body portion.

On the other hand, shown in Fig. 2 A and Fig. 2 B, dispose the shank elastomeric element FL that on above-mentioned width D, extends at central part C.

Therefore, when welding makes above-mentioned wearing article form pants type each other by end S1e, S2e with first S1 of body portion and second S2 of body portion as shown in Figure 1, by on draw with elastomeric element FU and shank and form cyclic Hookean region FA with elastomeric element FL.

Manufacture method

Below, an example of the manufacture method of above-mentioned wearing article is described.

The manufacturing process of composite sheet Ws:

As shown in Figure 3A, between two that are transferred on the throughput direction X zonal fabric W, sandwich respectively a plurality of waist elastic members FW, waist bottom elastomeric element FB and on draw with elastomeric element FU and form composite sheet Ws.

That is, shown in Fig. 3 B, at first at a fabric W configuration waist elastic members FW and waist bottom elastomeric element FB.Above-mentioned fabrics W is continuous on throughput direction X, and has the first side edge part W1s and the second side edge part W2s.Near the above-mentioned first side edge part W1s of fabric W and the second side edge part W2s, dispose a pair of waist elastic members FW respectively, and between above-mentioned a pair of waist elastic members FW configuration waist bottom elastomeric element FB.

When above-mentioned waist elastic members FW and waist bottom elastomeric element FB are configured in fabric W and then thereafter, as shown in Figure 4, will on draw with elastomeric element FU and be configured in fabric W, and between two fabric W, sandwich each elastomeric element FW, FB, FU forms above-mentioned composite sheet Ws.

In making the operation of above-mentioned composite sheet Ws, on draw with elastomeric element FU and be disposed at fabric W in the mode of tiltedly crossing roughly whole waist bottom elastomeric element FB in width D updip.

Draw the fabric W of contoured configuration in conveying along wavelength X on above-mentioned with regulation with elastomeric element FU.A plurality of first top α 1 of above-mentioned waveform be configured in the above-mentioned first side edge part W1s near, and adjacent a plurality of second top α 2 of the above-mentioned first top α 1 be configured in the second side edge part W2s near.

In addition, above-mentioned waveform λ for example can be the shape that is formed by connecting with straight line between the first top α 1 of fillet and the second top α 2, also can be sine curve etc.

Segmentation process:

Composite sheet Ws in the conveying and on draw with elastomeric element FU and be cut off along successive line of cut CL on the length direction L of above-mentioned composite sheet Ws in the lump.By above-mentioned cut-out, composite sheet Ws is divided into the first cutting plate W1 and the second cutting plate W2.

Cut apart by this, composite sheet Ws is divided into: the first cutting plate W1 with the first side edge part W1s and a plurality of first top α 1; With the second cutting plate W2 with the second side edge part W2s and a plurality of second top α 2.

Widen operation:

After above-mentioned cutting apart, as shown in Figure 5, play mode till the second side edge part W2s apart from width d1 according to increasing from the above-mentioned first side edge part W1s, make two cutting plate W1, W2 on width D, relatively move (expansion width).

The phase shifting operation:

Below, the second top α, the 2 mutual relative modes according to the first top α 1 with the second cutting plate W2 of the first cutting plate W1 stagger the phase place on the moving direction X of the first cutting plate W1 and the second cutting plate W2 mutually.That is, as shown in Figure 4 and Figure 5, with the phase place of the moving direction X of a cutting plate W1 (W2) with respect to another cutting plate W2 (W1) half wavelength λ/2 of staggering.

Thus, as shown in Figure 5, become the state that the second top α, 2 substantial line of the first top α 1 of the first cutting plate W1 and the second cutting plate W2 dispose symmetrically.

In addition, method as the phase place of stagger cutting plate W1, W2, for example also can adopt following method: make a cutting plate W2 (W1) by not shown virtual (dummy) roller, an above-mentioned thus cutting plate W2 (W1) lags behind than another cutting plate W1 (W2).

As shown in Figure 6, the first cutting plate W1 has between the first top α 1 and the first top α 1 and does not dispose the first area E1 that draws with elastomeric element FU.On the other hand, the second cutting plate W2 has between the second top α 2 and the second top α 2 and does not dispose the second area E2 that draws with elastomeric element FU.

After the operation of the above-mentioned phase place that staggers, at above-mentioned first area E1 and second area E2, waist bottom elastomeric element FB is cut off, make the tension force forfeiture of this waist bottom elastomeric element FB.Then, central part C is configured in above-mentioned first area E1 and second area E2.

Like this, according to the mode of the first area E1 that crosses over the first cutting plate W1, thereby dispose above-mentioned central part C formation laminated body 10 with the second area E2 of the second cutting plate W2.

In addition, as the method for cutting off waist bottom elastomeric element FB, for example also can adopt following method: make the waist bottom elastomeric element FB of the part that is equivalent to first area E1 and second area E2 not engage the waist bottom elastomeric element FB cut-out of ground in advance, make waist bottom elastomeric element FB not be configured in this first area E1 and second area E2 thus with this first area E1 and second area E2 part with fabric W.In addition, also can make the tension force forfeiture of waist bottom elastomeric element FB substantially by the waist bottom elastomeric element FB among first area E1 and the second area E2 is more carefully cut off.

As shown in Figure 7, laminated body 10 is transported to the downstream, and the first side edge part W1s and the second side edge part W2s is folding towards central part C (towards the inboard of fabric) respectively.

Then, according to the first top α 1 of Fig. 7 and the overlapped mode of the second top α 2, and, central part C is folded on width D as shown in Figure 8 according to the first cutting plate W1 and the overlapped mode of the second cutting plate W2.After this is folding, the first cutting plate W1 between each central part C, C and the second cutting plate W2 are cut off along line of cut Ch, form each medicated underpants thus.In this cut-out, the position of the both sides of line of cut Ch, promptly become the mutual welding of part of the end on the waistline direction B among first S1 of body portion and second S2 of body portion among Fig. 1.By this welding, the above-mentioned first overlapped top α 1 and the second top α 2 roughly link each other, form cyclic Hookean region FA.

In addition, also can implement various processing to wearing article.For example, shown in Fig. 1, Fig. 2 A and Fig. 2 B, also can dispose emulsion sheet Sc, top sheet St, Stereogram Sg etc.In addition, also can be provided with rivel elastomeric element FG at above-mentioned Stereogram Sg.

In addition, elastomeric element FB in waist bottom also can be a diaphragm.In this case, do not dispose this diaphragm in first area that disposes central part and second area.

In addition, in the above description, as an example of wearing article, illustration the diaper of pants type, but, except the diaper of above-mentioned pants type, for example also can be the diaper that when dressing, is fixed on the type of waist front and rear partly as above-mentioned wearing article.

Industrial utilizability

The present invention can be applied to have the manufacturing of the disposable wearing article of absorber.

Claims

1. the manufacture method of a wearing article, described wearing article comprises: the first body portion of a part that covers the body of wearer; The second body portion of other parts of the body of covering wearer; With the central part of the hip thigh that covers wearer, the manufacture method of this wearing article is characterised in that, comprising:

To on throughput direction continuously and have an operation that the zonal fabric of first side edge part and second side edge part is carried;

Make the operation of composite sheet: will be on the length direction of described fabric continuously and when being used for preventing to dress wearing article landing downwards on draw with elastomeric element along the contoured configuration of regulation described fabric in described conveying, with a plurality of first tops of described waveform be configured in described first side edge part or this first side edge part near, and adjacent a plurality of second tops at described first top be configured in described second side edge part or this second side edge part near;

Cut off operation, cut off in the operation at this, by the described composite sheet in the described conveying being cut off along successive cut-out line on the length direction of described composite sheet, be divided into first cutting plate with described first side edge part and described a plurality of first tops and second cutting plate, and cut off drawing with elastomeric element on described with described second side edge part and described a plurality of second tops;

Make described two cutting plates in the operation that relatively moves with the orthogonal width of described length direction according to enlarging the mode that plays the distance till described second side edge part from described first side edge part;

The operation that phase place on the moving direction of described first cutting plate and described second cutting plate is staggered mutually according to described first top and described second top mode respect to one another; With

Thereby dispose the operation that described central part obtains laminated body according to the mode of crossing over first area and second area, wherein, described first area is not meant disposing between first top and first top described in described first cutting plate draws the zone of using elastomeric element, and described second area is not meant disposing between second top and second top described in described second cutting plate and draws the zone of using elastomeric element.

2. the manufacture method of wearing article as claimed in claim 1 is characterized in that:

Described each cutting plate also comprises:

Described each body portion along waist in waistline side upwardly extending waist elastic members; With

On the waistline direction, extend and be arranged on waist bottom elastomeric element in the zone of waist bottom in described each body portion,

In making the operation of described composite sheet, also comprise: dispose the operation of drawing the usefulness elastomeric element on described in the mode that the width updip of described cutting plate is tiltedly crossed at least a portion of described waist bottom elastomeric element according to drawing on described with elastomeric element.

3. the manufacture method of wearing article as claimed in claim 2 is characterized in that:

Also comprise:

According to the part at the part at described first top and described second top mutually near so that eclipsed mode on the length direction of described central part in the middle of the place described laminated body is folding and build up two-layer operation;

According to the roughly banded mode in described first top and described second top with become in described first cutting plate end on the waistline direction of the described first body portion the position, with described second cutting plate in become the operation that the position of the end on the waistline direction of the described second body portion is bonded with each other; With

Described first cutting plate and second cutting plate cut off and cut the operation at the position that becomes each wearing article along described width from described laminated body,

Described central part is included in the shank elastomeric element that extends on the described width,

In obtaining the operation of described laminated body, according to disposing described central part with the banded mode of elastomeric element with drawing on described with the described cut end of elastomeric element and the described shank of described central part, thus, form cyclic Hookean region by drawing with elastomeric element and described shank on described wearing article described with elastomeric element.