JP5341034B2 - Absorbent articles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article in which a range of an absorbent body is easily specified and an auxiliary absorbent tool is accurately attached on a suitable position for the absorbent body. <P>SOLUTION: On a body part 2a of the absorbent article, a liquid absorptive absorbent body 22, a top sheet 21 covering a main surface to a wearer side on the absorbent body 22, and a back sheet covering a main surface of the other surface of the absorbent body 22 are provided. In the absorbent article, an auxiliary absorbent tool 9 such as an inner pad etc. can be attached to a wearer side on the top sheet 21. To a whole of the absorbent body 22, a lattice pattern 4 formed with a plurality of lines 42 extended in the longitudinal direction and the width direction perpendicular to the longitudinal direction are given. The pattern 4 is visually recognizable from the wearer side on the absorbent article via the top sheet 21. Accordingly the absorbent article can be easily specified the range of the absorbent body 22, and the auxiliary absorbent tool 9 can be accurately attached on a suitable relative position to the absorbent body 22. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an absorbent article that receives excrement from a wearer.

  Conventionally, in a disposable diaper, since it is necessary to replace the entire diaper even when a small amount of urination is performed, an economical burden is increased for the user. Therefore, an inexpensive auxiliary absorbent device (so-called urine pad or the like) is attached to the main body of the disposable diaper and worn, and only the auxiliary absorbent device is replaced when urinating a small amount.

  Thus, when using an auxiliary | assistant absorption tool, it is necessary to mount | wear with an auxiliary | assistant absorption tool in a suitable position for a wearer, and to prevent the leakage of urine or feces. For example, in Patent Document 1, a positioning mark corresponding to each other (for example, on the center line or an end) of the disposable paper diaper and the inner pad (auxiliary absorbent) is provided, so that the inner pad is placed at the center of the disposable paper diaper. A technique for quickly and reliably mounting is disclosed.

JP 2003-93438 A

  By the way, depending on the wearer's physical condition (for example, the state of hemiplegia or contracture, or the position of the male genital disposable diaper), the direction of urine flowing in the disposable diaper is biased, etc. Leakage may not be prevented properly by simply attaching an auxiliary absorbent device to the center of the disposable diaper. In such a case, it is preferable to shift the mounting position of the auxiliary absorbent device according to the wearer's physical condition.

  On the other hand, when a part of the auxiliary absorbent device is mounted on the disposable diaper so as to protrude from the absorbent body having high absorbency, urine etc. that could not be absorbed by the auxiliary absorbent device are poorly absorbed in the outer periphery of the diaper. There is a risk of leaking into the area. Therefore, it is necessary to attach the auxiliary absorbent device within an appropriate range on the absorbent body. However, in a normal disposable diaper, it is difficult to specify the exact position and range of the absorbent body. It is not easy to attach it to the body at an appropriate position.

  This invention is made | formed in view of the said subject, and it aims at specifying the position (or range) of an absorber easily, and attaching an auxiliary | assistant absorber to the appropriate relative position with respect to an absorber.

Invention of Claim 1 is an absorbent article which receives excrement from a wearer, Comprising: The absorber, the top sheet which covers the main surface by the side of the wearer of the said absorber, The other side of the said absorber A backsheet that covers the main surface of the topsheet , an auxiliary absorbent can be attached to the wearer side of the topsheet, and a pattern visible through the topsheet on the wearer side of the absorber. A lattice-shaped pattern that is provided as a mark used for mounting the auxiliary absorbent, and the pattern is formed by lines extending in the longitudinal direction of the absorber and the width direction perpendicular to the longitudinal direction, Alternatively, it is a pattern of lattice points extending in the longitudinal direction and the width direction .

Invention of Claim 2 is an absorbent article of Claim 1 , Comprising: The line of the said grid | lattice-shaped pattern or the point of the pattern of the said grid point is every fixed number regarding the said longitudinal direction and the said width direction. Different thick lines or large points.

The invention described in claim 3 is the absorbent article according to claim 1 or 2, wherein the absorber, the absorbent core comprising an absorbent material, covering the main surface of the wearer's side of the absorbent core And an upper mount on which the pattern is provided and a lower mount that covers the other main surface of the absorbent core, and the pattern is provided on the absorbent core side of the upper mount.

Invention of Claim 4 is an absorbent article in any one of Claim 1 thru | or 3 , Comprising: The said pattern is in the formation process of the said absorber, or after formation of the said absorber. Before the absorber is covered with the top sheet, the absorber is provided on the absorber.

In the present invention, the range of the absorber can be easily specified. In the invention of claim 3 , damage to the mark can be prevented.

In invention of Claim 4 , it can respond to manufacture of the absorber of a different size in a single manufacturing apparatus easily.

It is a top view which shows the absorbent article which concerns on a 1st related technique. It is sectional drawing of an absorbent article. It is a figure which shows the structure of a main-body-part manufacturing apparatus. It is a figure which shows the manufacturing process of an absorbent article. It is a top view which shows the absorbent article which concerns on a 2nd related technique. It is a figure which shows a part of structure of a main-body-part manufacturing apparatus. It is a figure which shows the manufacturing process of an absorbent article. It is a top view which shows the main-body part of the absorbent article which concerns on 1st Embodiment. It is a top view which shows the main-body part of the absorbent article which concerns on 2nd Embodiment. It is a top view which shows the main-body part of the absorbent article which concerns on a 3rd related technique . It is a figure which shows the example of another absorbent article. It is a figure which shows the example of another absorbent article.

  FIG. 1 is a plan view showing an absorbent article 1 according to the first related technique of the present invention. The absorbent article 1 that receives excrement from the wearer is used as an open-type disposable diaper that is worn around the waist around a part that abuts on the abdomen and a part that abuts on the back. The

  As shown in FIG. 1, the absorbent article 1 includes a substantially sheet-like main body 2 and the longitudinal direction of the main body 2 over almost the entire length in the longitudinal direction of the main body 2 (that is, the Y direction in FIG. 1). And a pair of side wall portions 3 provided on both sides in the width direction perpendicular to (i.e., (+ X) side and (-X) side), and one end portion ((-Y) side in the longitudinal direction of the main body portion 2 And a pair of fastening portions 24 attached to both sides in the width direction at a portion contacting the back side of the wearer). When the absorbent article 1 is worn, the main surface on the (+ Z) side of the main body 2 becomes a surface in contact with the wearer, and the fastening portion 24 is provided by two hook-and-loop fasteners 241 provided on each of the pair of fastening portions 24. Is fastened to the side opposite to the wearer side of the end portion on the (+ Y) side of the main body portion 2 (that is, the portion that contacts the abdomen side of the wearer).

  A plurality of elastic members 31a and 31b extending in the Y direction are joined to each of the pair of side wall portions 3, and when the absorbent article 1 is expanded as shown in FIG. 1, the elastic members 31a and 31b are stretched. It is in a state. In the absorbent article 1, when the inner elastic member 31 a contracts, the inner edge of the side wall 3 rises toward the wearer side on the side of the main body 2, and the outer elastic member 31 b contracts. A solid gather (so-called leg gather) is formed in which the outer edge and the lower sheet of the side wall portion 3 rise toward the wearer side and the inner side and abut on the base of the wearer's foot when worn. The side wall 3 is formed of a water-repellent or liquid-impervious nonwoven fabric (for example, a spunbond nonwoven fabric, a meltblown nonwoven fabric, an SMS (spunbond / meltblown / spunbond) nonwoven fabric), a plastic film, or a composite material thereof. . From the viewpoint of improving the comfort of the absorbent article 1, the side wall portion 3 preferably has air permeability.

  FIG. 2 is a cross-sectional view of the absorbent article 1 cut along a plane approximately in the center and perpendicular to the Y direction. As shown in FIGS. 1 and 2, the main body 2 includes a liquid-absorbing absorbent body 22, a top sheet 21 that covers the main surface of the absorbent body 22 on the wearer side (that is, (+ Z) side), and absorption. A back sheet 23 that covers the other main surface of the body 22 is provided, and the side wall 3 is joined to the side of the absorber 22. The top sheet 21 and the back sheet 23 are joined around the absorber 22 by a hot melt adhesive or the like.

  The top sheet 21 is a non-woven fabric formed of a liquid-permeable material, for example, a hydrophilic fiber, and captures moisture of excrement from the wearer and moves it to the absorber 22. Nonwoven fabrics used as the top sheet 21 are, for example, point bond nonwoven fabrics, air-through nonwoven fabrics, and spunlace nonwoven fabrics. As hydrophilic fibers forming these nonwoven fabrics, cellulose, rayon, cotton, or the like is usually used. As the top sheet 21, a liquid-permeable nonwoven fabric formed of hydrophobic fibers (for example, polypropylene, polyethylene, polyester, polyamide, nylon) whose surface is hydrophilically treated with an active agent may be used. A plastic film having holes may be used.

  The back sheet 23 is a water-repellent or liquid-impervious non-woven fabric, and the moisture that has permeated through the top sheet 21 and the moisture once absorbed by the absorber 22 are outside the main body 2 (that is, the (−Z) side). ) Prevent exudation. Nonwoven fabrics used as the backsheet 23 are, for example, spunbond nonwoven fabrics, meltblown nonwoven fabrics, and SMS (spunbond / meltblown / spunbond) nonwoven fabrics, and may be subjected to water repellent treatment as necessary. A water-repellent or liquid-impervious plastic film, a composite material of the nonwoven fabric and the plastic film, or the like may be used as the back sheet 23. In this case, from the viewpoint of the wearer's comfort, it is preferable to use a plastic film having air permeability.

  As shown in FIG. 2, the absorbent body 22 includes an absorbent material obtained by mixing a hydrophilic fiber (for example, pulverized pulp fiber or cellulose fiber) with a granular water-absorbing polymer (for example, SAP (Super Absorbent Polymer)). The top sheet 21 includes an absorbent core 222, an upper layer mount 221 that covers the main surface of the absorbent core 222 on the wearer side (that is, the (+ Z) side), and a lower layer mount 223 that covers the other main surface of the absorbent core 222. Immediately fix by absorbing moisture that permeated. In the absorbent body 22, the absorbent core 222 is wrapped by the upper layer mount 221 and the lower layer mount 223, thereby preventing the hydrophilic fibers from being deformed and the water-absorbing polymer from falling off. As the upper layer mount 221 and the lower layer mount 223, tissue paper, a liquid-permeable nonwoven fabric, or the like is used. From the viewpoint of preventing the upper layer mount 221 from being damaged in a state where the absorbent 22 has absorbed moisture, it is preferable to use a non-woven fabric as the upper layer mount 221.

  As shown in FIGS. 1 and 2, the absorbent body 22 includes a linear mark 41 along the longitudinal direction over the entire length of the absorbent body 22 at the center in the width direction, and the mark 41 is interposed via the top sheet 21. It is visible from the wearer side of the absorbent article 1. In FIG. 1, in order to facilitate understanding, a mark 41 located below the top sheet 21 is drawn with a solid line. The mark 41 is provided on the absorbent core 222 side (that is, (−Z) side) of the upper mount 221 by in-line printing in the forming process of the absorbent body 22 described later, and has the same length as the absorbent body 22. In the absorbent article 1, a substantially rectangular auxiliary absorbent 9 such as an inner pad can be attached on the wearer side of the top sheet 21 as shown by a two-dot chain line in FIGS. 1 and 2.

  When the absorbent article 1 is worn, first, the auxiliary absorbent 9 is attached to the absorbent article 1, and then the absorbent article 1 is applied to the wearer together with the auxiliary absorbent 9 and the fastening portion 24. It is fixed by. When the auxiliary absorbent 9 is attached to the absorbent article 1, the state after use of the previously used auxiliary absorbent 9 (that is, which part of the auxiliary absorbent 9 is mainly used to absorb urine etc.) ), The excretion tendency of the wearer is grasped, and if necessary, the auxiliary absorbent 9 is attached based on the position of the absorbent body 22 specified by the mark 41 and the mark 41 by shifting from the previous mounting position as necessary. Is called. For example, when excretion is biased to the wearer's ventral side and right side, the auxiliary absorbent 9 is shifted to the (+ X) side and (+ Y) side in FIG. It is attached so as not to protrude from the absorber 22.

  FIG. 3 is a diagram illustrating a configuration of a main body manufacturing apparatus 5 that is a part of an upstream side of an apparatus (or a device group) for manufacturing the absorbent article 1, and the main body manufacturing apparatus 5 includes the absorbent article 1. The main body 2 is manufactured. In the main body part manufacturing apparatus 5, the main body part 2 of the absorbent article 1 is manufactured using pulverized pulp, nonwoven fabric, or the like obtained by pulverizing a thin plate-like pulp 8 cut into a certain size.

  The main body manufacturing apparatus 5 includes a pulp supply mechanism 52 that supplies the pulp 8 at a constant speed along a predetermined supply path, and pulp that pulverizes the pulp 8 supplied by the pulp supply mechanism 52 on the downstream side of the pulp supply mechanism 52. A pulverizing mechanism 53 and a main body portion forming mechanism 54 for forming the main body portion 2 by molding the pulverized pulp generated by the pulp pulverizing mechanism 53 are provided.

  The pulp supply mechanism 52 includes a pulp placement unit 521 on which a plurality of stacked pulps 8 are placed, a pulp takeout mechanism 522 that takes out the pulp 8 one by one from the pulp placement unit 521, and the pulp 8 from the pulp takeout mechanism 522. A conveyor 523 that receives and conveys it to the downstream side, and a supply path 524 that is arranged on the downstream side of the conveyor 523 and guides the pulp 8 to the pulp crushing mechanism 53 are provided.

  The pulp crushing mechanism 53 includes a crushing cylinder 531 that crushes the pulp 8, and the crushing cylinder 531 is a substantially cylinder centering on a cylinder rotation shaft 5311 that is parallel to the pulp 8 and substantially perpendicular to the supply direction of the pulp supply mechanism 52. It has become a shape. The crushing cylinder 531 includes a plurality of crushing blades 532 arranged along the cylinder rotation shaft 5311, and each crushing blade 532 has a substantially disk shape perpendicular to the cylinder rotation shaft 5311 with the cylinder rotation shaft 5311 as a center. Yes. Each grinding blade 532 includes a plurality of teeth at a constant pitch on the outer periphery.

  The main body forming mechanism 54 includes an adsorbing drum 542 that adsorbs the pulverized pulp generated by the pulp crushing mechanism 53 to a predetermined height, a duct 541 that connects the pulp crushing mechanism 53 and the adsorbing drum 542, a roll-shaped lower mount 223, and A lower layer mount holding unit 543 and an upper layer mount holding unit 544 that respectively hold the upper layer mount 221, and a top sheet holding unit 545 and a back sheet holding unit 546 that hold the roll-shaped top sheet 21 and the back sheet 23, respectively. In addition, a mark forming mechanism 5442 for forming the mark 41 on the upper layer mount 221 is provided between the upper layer mount holding unit 544 and the adhesive supply unit 5441.

  FIG. 4 is a diagram illustrating a manufacturing process of the absorbent article 1. When the absorbent article 1 is manufactured, first, a roll-shaped upper layer mount 221, lower layer mount 223, top sheet 21 and back sheet 23 are prepared, and each holding unit of the main body manufacturing apparatus 5 shown in FIG. Attached and held. The mark 41 (see FIG. 1) is not yet formed on the prepared upper layer mount 221.

  Subsequently, the pulp 8 is sequentially supplied to the pulp crushing mechanism 53 by the pulp supply mechanism 52 and is pulverized by the crushing blade 532 of the crushing cylinder 531 that rotates about the cylinder rotation shaft 5311 to generate pulverized pulp. The pulverized pulp is conveyed through a duct 541 by air from a blower mechanism (not shown) and mixed with a water-absorbing polymer (for example, SAP (Super Absorbent Polymer)) supplied from a polymer supply unit 5421. It is sprayed on a cylindrical suction drum 542 that rotates clockwise. In the adsorption drum 542, the pulverized pulp and the water-absorbing polymer are adsorbed to a predetermined height on the outer peripheral surface of the adsorption drum 542 provided with fine suction holes by an unillustrated suction mechanism connected to the inside, and the absorbent core 222 is absorbed. Is formed and is substantially ready. (Step S11). In addition, depending on the absorptive power requested | required of the main-body part 2 of the absorbent article 1, mixing of a water absorbing polymer may be abbreviate | omitted.

  The absorption core 222 (that is, the pulverized pulp and the water-absorbing polymer) adsorbed on the outer peripheral surface of the adsorption drum 542 moves to the lower side of the adsorption drum 542 as the adsorption drum 542 rotates, and the lower-layer mount holding unit 543 is moved. And is transferred to the lower mount 223 which is conveyed downstream by the conveyor 5401. The absorbent core 222 is bonded onto the lower mount 223 by an adhesive (for example, hot melt adhesive) previously applied to the upper surface of the lower mount 223 by the adhesive supply unit 5431.

  In the main body manufacturing apparatus 5, in parallel with the conveyance of the absorbent core 222 and the lower layer mount 223 by the conveyor 5401, one side of the upper layer mount 221 fed out from the upper layer mount holding unit 544 (that is, the absorber 22 is formed). In the state, the printing ink is continuously ejected from the mark forming mechanism 5442 to the surface facing the absorbent core 222, and the linear mark 41 shown in FIG. 1 is formed on the upper mount 221 (step S12).

  When the mark 41 is formed, an adhesive is applied to the surface of the upper layer mount 221 on which the mark 41 is formed by the adhesive supply unit 5441. The upper mount 221 enters the pressure unit 5481 with the absorbent core 222 sandwiched between the lower mount 223 and the adhesive application surface (that is, the surface on which the mark 41 is formed) facing the absorbent core 222. To do. Then, the upper layer mount 221 and the lower layer mount 223 are bonded while being compressed by the pressure unit 5481, thereby forming the absorbent sheet 220 as a continuous body (step S13).

  The absorbent sheet 220 is conveyed downstream by the conveyor 5402, and is cut in a direction perpendicular to the longitudinal direction of the absorbent sheet 220 at the cutting unit 5471 to form a plurality of absorbent bodies 22 (step S14). The plurality of absorbent bodies 22 are arranged on the conveyor 5403 on the downstream side of the cutting portion 5471 with a gap in the conveyance direction by the conveyor 5403, and further conveyed downstream.

  On the downstream side of the conveyor 5403, the top sheet 21 and the back sheet 23 are fed out from the top sheet holding part 545 and the back sheet holding part 546, and adhesive supply parts 5451 and 5461 are provided on the surfaces of the both sheets facing the absorber 22. The adhesive is applied. The top sheet 21 and the back sheet 23 are bonded to each other with a plurality of absorbent bodies 22 arranged with a gap therebetween, thereby forming the main body sheet 20 as a continuous body (step S15).

  In the main body manufacturing apparatus 5, the main body sheet 20 is cut in a direction perpendicular to the longitudinal direction of the main body sheet 20 by the cutting unit 5472 at a portion corresponding to the gap between the plurality of absorbent bodies 22 arranged in the longitudinal direction. A plurality of main body portions 2 are formed (step S16). Each main body 2 is unloaded from the main body manufacturing apparatus 5 by a conveyor 5404 located on the downstream side of the cutting section 5472, and the pair of side walls 3 and the pair of fastening parts 24 are attached to manufacture the absorbent article 1. (Step S17).

  As described above, in the absorbent article 1, the absorbent body 22 includes the mark 41 that is visible from the wearer side via the top sheet 21, whereby the position of the absorbent body 22 can be easily identified, and the auxiliary absorption is performed. The tool 9 can be accurately attached at an appropriate relative position with respect to the absorber 22. Moreover, since the mark 41 is provided in the center of the absorbent body 22 in the width direction and can be easily used as a reference for adjusting the position of the auxiliary absorbent 9, the auxiliary absorbent 9 can be easily positioned with respect to the absorbent 22. it can. Furthermore, since the mark 41 is provided at the center in the width direction at both ends in the longitudinal direction of the absorbent body 22, the absorbent article 1 is placed after the auxiliary absorbent device 9 is applied to an appropriate wearing site of the wearer. Even when worn, the absorbent article 1 can be worn while confirming the relative position between the mark 41 and the auxiliary absorbent 9 at the end of the absorbent article 1 in the longitudinal direction. Can be accurately attached to the absorbent article 1.

  In the absorbent article 1, the mark 41 can be easily provided on the absorbent body 22 by printing the mark 41 on the upper layer mount 221. Further, since the mark 41 is provided on the absorbent core 222 side of the upper mount 221, the mark 41 is prevented from coming into direct contact with the top sheet 21 during the manufacturing or use of the absorbent article 1. It is possible to prevent the mark 41 from being damaged due to friction with the sheet 21 or the like.

  In the main body manufacturing apparatus 5, a linear mark 41 is formed over the entire length in the longitudinal direction of the absorbent body 22 by continuously printing a straight line on the upper layer mount 221 fed out from the upper layer mount holding unit 544. Even when the size of the absorbent body 22 manufactured by the main body manufacturing apparatus 5 is changed, no special work associated with the size change occurs with respect to providing the mark 41. As a result, it is possible to easily cope with the manufacture of the absorbers 22 having different sizes in the single main body manufacturing apparatus 5.

  In addition, formation of the mark 41 (step S12 in FIG. 3) does not necessarily need to be performed immediately before formation of the absorber sheet 220 (step S13), and if it is performed in the formation process of the absorber 22, absorption is performed. It may be performed after the formation of the body sheet 220 or simultaneously with the formation of the absorber sheet 220. For example, when the formation of the mark 41 is performed after the absorber sheet 220 is formed and before the absorber sheet 220 is cut (that is, between step S13 and step S14), the mark forming mechanism 5442 is a pressurizing unit. The mark 41 is printed between the upper surface of the absorbent sheet 220 (that is, the surface opposite to the side facing the absorbent core 222 of the upper layer mount 221). Further, the mark forming mechanism 5442 may be disposed inside the pressure unit 5481, and the formation of the mark 41 may be performed simultaneously with the formation of the absorbent sheet 220. When the formation of the mark 41 is performed before or after the formation of the absorbent sheet 220, or when it is performed at the same time, the main body manufacturing apparatus 5 has the single main body manufacturing apparatus 5 as described above. It is possible to easily cope with the manufacture of the absorber 22 having a different size. In the main body manufacturing apparatus 5, colored hot-melt bonding is performed on the adhesive application surface of the upper mount 221 when the adhesive is supplied to the upper mount 221 by the adhesive supply unit 5441 or before and after the adhesive is applied. An agent may be applied as the mark 41.

  In the main body manufacturing apparatus 5, in step S <b> 11, the upper layer mount 221 on which the linear mark 41 is formed in advance may be prepared. In this case as well, regarding the provision of the mark 41, the size of the absorber 22 is changed. Since the accompanying special operation does not occur, it is possible to easily cope with the manufacture of the absorbers 22 of different sizes in the single main body manufacturing apparatus 5.

  FIG. 5 is a plan view showing an absorbent article 1a according to the second related technique of the present invention. In the absorbent article 1a, instead of the linear mark 41 shown in FIG. 1, a cross-shaped mark (that is, two short straight lines orthogonal to each other) 41a is provided. Other configurations are the same as those in FIG. 1, and the same reference numerals are given in the following description. In the absorbent article 1a, a mark 41a that is visible from the wearer side through the top sheet 21 is provided at the approximate center in the longitudinal direction of the absorbent body 22 and the center in the width direction.

  The absorbent article 1a is manufactured by a main body manufacturing apparatus 5a having substantially the same configuration as that shown in FIG. 3. In the main body manufacturing apparatus 5a, the mark forming mechanism 5442 has a pressurizing section 5481 and a cutting section as shown in FIG. 3 is different from the apparatus of FIG. 3 only in that it is disposed above the conveyor 5402 between 5471. Hereinafter, the same reference numerals as those in the first related technique are attached and explanations are given. FIG. 7 is a diagram illustrating a manufacturing process of the absorbent article 1a. The manufacturing process shown in FIG. 7 is the same as the first related technique except that steps S22 and S23 are performed instead of steps S12 and 13 in FIG. 4, and the steps after step S24 in FIG. This is the same as that after step S15 in FIG.

  When the absorbent article 1a is manufactured by the main body manufacturing apparatus 5a, the roll-shaped upper layer mount 221, the lower mount 223, the top sheet 21 and the back sheet 23 are formed into the main body manufacturing apparatus 5a as in the first related technology. Then, the pulverized pulp mixed with the water-absorbing polymer is adsorbed on the outer peripheral surface of the rotating adsorption drum 542 to sequentially form the absorbent core 222, thereby substantially forming the absorbent core 222. Is prepared (step S21) (see FIG. 3). Then, as shown in FIG. 6, the upper layer board 221 is bonded and compressed to the lower layer board 223 with the absorbent core 222 interposed therebetween in the pressurization unit 5481, thereby forming the absorbent sheet 220 as a continuous body. (Step S22).

  Here, printing ink is intermittently ejected from the mark forming mechanism 5442 provided above the conveyor 5402 to the absorber sheet 220, and the cross-shaped mark 41 a (see FIG. 5) becomes the absorber sheet 220. Are formed by in-line printing at a plurality of positions on the upper surface (that is, the wearer-side surface of the upper mount 221) (step S23). The mark 41 a is provided on each of a plurality of predetermined positions corresponding to a plurality of absorbers 22 described later on the absorber sheet 220.

  The absorbent sheet 220 is cut at the cutting portion 5471 to form a plurality of absorbent bodies 22 each provided with a mark 41a (step S24). Thereafter, similarly to the first related technology, the top sheet 21 and the back sheet 23 are bonded together with the plurality of absorbent bodies 22 interposed therebetween to form a continuous body sheet 20 (step S15) (FIG. 3). 4), and further, the main body sheet 20 is cut by the cutting portion 5472 at a portion corresponding to the gap between the plurality of absorbent bodies 22 arranged in the longitudinal direction to form a plurality of main body portions 2 (step). S16). Then, each main-body part 2 is carried out from the main-body-part manufacturing apparatus 5, a pair of side wall part 3 and a pair of fastening part 24 are attached, and the absorbent article 1 is manufactured (step S17).

  As described above, in the absorbent article 1a, the absorbent body 22 includes the mark 41a that is visible from the wearer side via the top sheet 21, as in the first related technology. The position can be easily identified, and the auxiliary absorber 9 can be accurately attached to an appropriate relative position with respect to the absorber 22.

  In particular, in the absorbent article 1a, the mark 41a is provided at the approximate center in the longitudinal direction of the absorber 22 and the center in the width direction, whereby the auxiliary absorbent 9 can be easily positioned with respect to the absorber 22. . Furthermore, even if it is a case where the absorbent article 1a is worn after the auxiliary absorbent device 9 is applied to an appropriate wearing part of the wearer, the absorbent article 1a is located at the approximate center of the absorbent article 1a. Since the absorbent article 1a can be worn while aligning the mark 41a, the auxiliary absorbent 9 can be accurately attached to the absorbent article 1a.

  In the main body part manufacturing apparatus 5a, the mark 41a is provided immediately before cutting the absorbent body sheet 220, that is, in the forming process of the absorbent body 22, so that the size of the absorbent body 22 manufactured by the main body part manufacturing apparatus 5a is changed. Even so, it is only necessary to change the setting of the printing position of the mark 41a on the absorbent sheet 220. As a result, it is possible to easily cope with the manufacture of the absorbers 22 having different sizes in the single main body manufacturing apparatus 5a.

  It should be noted that the formation of the mark 41a (step S23 in FIG. 7) is not necessarily performed after the absorbent sheet 220 is formed and immediately before the absorbent sheet 220 is cut (that is, between steps S22 and S24). In the step of forming the absorbent body 22, for example, it may be performed on the upper layer mount 221 fed out from the upper layer mount holding section 544 before the formation of the absorbent sheet 220 (that is, between steps S21 and S22). . The mark 41a is after the absorber sheet 220 is cut and the plurality of absorbers 22 are formed and before these absorbers 22 are covered with the top sheet 21 (that is, between steps S24 and S25). ). In any case, it is possible to easily cope with the manufacture of the absorber 22 having a different size in the single main body manufacturing apparatus 5.

  FIG. 8 is a plan view showing the main body 2a of the absorbent article according to the first embodiment of the present invention. In the main body 2a, a lattice-like pattern 4 formed by a plurality of lines 42 extending in the longitudinal direction of the absorbent body 22 and the width direction perpendicular to the longitudinal direction is absorbed instead of the linear mark 41 shown in FIG. It is given to the whole body 22. The plurality of lines 42 are arranged substantially parallel to each other with an interval of about 5 to 10 mm. The lines 42 of the pattern 4 are made thicker than the normal lines 42 every predetermined number (every five in the present embodiment) in the longitudinal direction and the width direction.

  The pattern 4 is printed inline on the entire main surface of the upper layer mount 221 (see FIG. 2) of the absorber 22 in the same manner as in the first related technology, and can be visually recognized through the top sheet 21. The For this reason, in the absorbent article which concerns on 1st Embodiment, the range of the absorber 22 can be specified easily. Further, the auxiliary absorbent 9 is placed in an appropriate relative position with respect to the absorber 22 by overlapping each corner portion of the auxiliary absorbent 9 with the intersection of the line 42 or by causing the edge of the auxiliary absorbent 9 to be along the line 42. Can be installed accurately. From the viewpoint of preventing the pattern 4 from being damaged due to friction with the top sheet 21 or the like, the pattern 4 is preferably provided on the side facing the absorbent core 222 of the upper mount 221.

  FIG. 9 is a plan view showing a main body 2b of an absorbent article according to the second embodiment of the present invention. In the main body 2b, instead of the lattice pattern 4 shown in FIG. 8, a lattice point pattern 4a extending at equal intervals in the longitudinal direction and the width direction of the absorber 22 is applied to the entire absorber 22. The plurality of points 43 of the pattern 4a are arranged with an interval of about 5 to 10 mm, and are made larger than the normal points 43 for every fixed number (in the present embodiment, every five).

  As in the first embodiment, the pattern 4a is printed inline on one entire main surface of the upper layer mount 221 (see FIG. 2) of the absorber 22, and can be visually recognized through the top sheet 21. Is done. For this reason, also in the absorbent article which concerns on 2nd Embodiment, the range of the absorber 22 can be specified easily, Furthermore, each corner part and edge of the auxiliary | assistant absorber 9 are overlapped on the point 43, etc. And the auxiliary | assistant absorber 9 can be correctly attached to the appropriate relative position with respect to the absorber 22. FIG.

FIG. 10: is a top view which shows the main-body part 2c of the absorbent article which concerns on the 3rd related technique of this invention. The absorber 22 shown with parallel diagonal lines in FIG. 10 is formed using a colored upper layer mount 221 (see FIG. 2). For this reason, in the absorbent article which concerns on a 3rd related technique , the color which can be visually recognized through the top sheet 21 will be provided to the whole absorber 22, As a result, 1st and 2nd embodiment Similarly, the range of the absorber 22 can be easily specified.

  As mentioned above, although embodiment of this invention and related technology were demonstrated, this invention is not limited to the said embodiment, A various change is possible.

For example, in the first and second embodiments and the first and second related technologies, the mark or pattern provided on the absorbent body 22 is a part other than the upper layer mount 221 of the absorbent body 22, for example, the absorbent core 222. It may be formed on the upper surface. In the third related technique , a colored absorbent core 222 that can be visually recognized through the top sheet 21 and the upper layer mount 221 may be used instead of the colored upper layer mount 221.

  In the absorbent article 1 shown in FIG. 1, the mark 41 is provided as a solid line along the longitudinal direction of the absorbent body 22, but the mark 41 can be regarded as a substantially straight line such as a broken line or a dotted line. Also good. In addition, the mark 41 does not necessarily have to be provided over the entire length in the longitudinal direction of the absorbent body 22, and has a width at at least one end in the longitudinal direction of the absorbent body 22 (that is, an end on the ventral side or the back side). It may be provided in the center of the direction. Thus, by providing the mark 41 at the end of the abdomen or the back of the absorbent body 22, the auxiliary absorbent 9 can be easily positioned with respect to the absorbent body 22. Further, even when the absorbent article 1 is worn after the auxiliary absorbent device 9 is applied to the wearer's appropriate wearing part, the mark 41 and the auxiliary are provided at the end of the absorbent article 1 on the ventral side or the back side. Since the absorbent article 1 can be worn while confirming the relative position with the absorbent article 9, the auxiliary absorbent article 9 can be accurately attached to the absorbent article 1.

  In FIG. 8, the line 42 of the pattern 4 is a solid line, but the line 42 may be substantially regarded as a line such as a broken line or a dotted line. Similarly, the point 43 of the pattern 4a shown in FIG. 9 may be a rectangle, a rhombus, a star, or the like as long as it can be substantially regarded as a point. Furthermore, the pattern imparted to the absorbent body 22 is a set of figures of various other shapes that can easily identify the range of the absorbent body 22 and can be used for accurate attachment of the auxiliary absorbent 9 to the absorbent body 22. May be.

  FIG. 11 and FIG. 12 are diagrams showing examples of other absorbent articles in which marks 41b and 41c are provided at positions different from the related art. In the absorbent article 1b shown in FIG. 11, two marks 41b are provided in the approximate center of the absorbent body 22 in the longitudinal direction, and in the absorbent article 1c shown in FIG. 41c is provided. Thus, by providing the mark at the approximate center in the longitudinal direction or the center in the width direction of the absorbent body 22, positioning of the auxiliary absorbent 9 with respect to the absorbent body 22 in the vertical and horizontal directions and the orientation can be easily performed.

  In the absorbent article, the nonwoven fabric manufactured by various manufacturing methods such as the spunlace method, the needle punch method, the thermal bond method, the spunbond method, the chemical bond method, and the air-through method is used for the topsheet 21, the backsheet 23, and the side wall 3. Can be used as

  The absorbent article which concerns on the said embodiment and related technology can be utilized as an open type or underpants type disposable diaper, and can also be utilized for various other uses.

1, 1a-1c Absorbent article 4, 4a Pattern 20 Main body sheet 21 Top sheet 22 Absorber 23 Back sheet 41, 41a-41c Marking 42 Line 43 Points 220 Absorber sheet 221 Upper layer mount 222 Absorbing core 223 Lower layer mount S11-S17 , S21 to S24 steps

Claims (4)

An absorbent article that receives excrement from a wearer,
An absorber,
A top sheet covering the main surface of the absorbent body on the wearer side;
A backsheet covering the other main surface of the absorber;
With
An auxiliary absorbent can be attached to the wearer side of the top sheet,
A pattern visible through the top sheet is provided on the entire wearer side of the absorbent body as a mark used for attachment of the auxiliary absorber ,
The pattern is a lattice-like pattern formed by lines extending in the longitudinal direction of the absorber and the width direction perpendicular to the longitudinal direction, or a pattern of lattice points extending in the longitudinal direction and the width direction. Absorbent article characterized by. The absorbent article according to claim 1 ,
The absorbent article, wherein a line of the grid pattern or a pattern of the grid point pattern is a thick line or a large point for every predetermined number in the longitudinal direction and the width direction. The absorbent article according to claim 1 or 2 ,
The absorber is
An absorbent core comprising an absorbent material;
An upper mount that covers the main surface of the absorbent core on the wearer side and is provided with the pattern;
A lower mount that covers the other main surface of the absorbent core;
With
The absorbent article, wherein the pattern is provided on the absorbent core side of the upper mount. The absorbent article according to any one of claims 1 to 3 ,
The pattern is provided in the absorber in the step of forming the absorber or after the absorber is formed and before the absorber is covered with the top sheet. Absorbent article.

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