JP2007301187A - Disposable absorptive article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disposable absorptive article which can make a user easily recognize the presence of a breaking part. <P>SOLUTION: An index part 51 is provided by printing or the like for each of the respective breaking parts 18L and 18R so as to indicate the positions of the lower ends of the breaking parts 18L and 18R. An arrow shape is adopted for the shape of the index part 51, and it is provided such that the distal end of the arrow indicates the lower ends of the respective breaking parts 18L and 18R. Also, the index parts 51 can be provided on a directly visible part on the outer side surface of the absorptive article 1 or can be provided on a part visible through a member on the outer side of the absorptive article 1. For instance, when providing the index parts 51 on the outer side in the transverse direction X of the breaking parts 18L and 18R, the configuration of providing them by printing them on a sheet material 36 on the outer side of a front part 13 and the configuration of providing the index parts 51 on the main body part 21a of the base material sheet 21 of tightening sheet materials 3L and 3R, etc., can be considered. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disposable absorbent article having a fracture portion.

There exists a thing of patent document 1 as a disposable absorbent article in which the conventional fracture | rupture part was provided. This disposable absorbent article has a pant-type configuration before breaking the breakage part, and can be used like a refastened diaper by using a fastening member after breaking the breakage part. ing.
JP-T-2004-524929

  However, in this type of absorbent article, a non-woven fabric or the like may be used as a main material, and there is a problem that it is difficult to understand the presence of a fracture portion composed of perforations or the like.

  Then, the problem which this invention should solve is providing the disposable absorbent article which can make a user recognize presence of a fracture | rupture part easily.

  In order to solve the above-mentioned problem, in the invention of claim 1, a waist opening and left and right leg openings are provided, and the part is broken at a part positioned on the front side or the back side of the wearer. This is a disposable absorbent article in which the rupture portion is provided substantially along the longitudinal direction, and an indicator portion indicating the position of the lower end portion of the rupture portion is provided.

  Moreover, in invention of Claim 2, it has the exterior material which comprises at least the part applied to the circumference | surroundings of a wearer in the disposable absorbent article which concerns on invention of Claim 1, and an absorber, The said absorbent article And an absorbent main body that is disposed in a portion applied to the crotch portion of the wearer and is joined to the skin surface side of the exterior material, and the break portion is provided in the exterior material along a substantially vertical direction. The indicator portion is provided in a portion that is visible from the outside of the absorbent article directly or through an outer member.

  Moreover, in invention of Claim 3, in the disposable absorbent article which concerns on invention of Claim 1 or Claim 2, the said fracture | rupture part becomes a structure which can be fractured | ruptured along the fracture | rupture part, Regarding the tensile strength, the lower part of the fracture part can be fractured with a smaller tensile force than the other parts.

  According to a fourth aspect of the present invention, in the disposable absorbent article according to any one of the first to third aspects, the fastening for refastening the broken portion when the broken portion is broken. The sheet material and an attachment portion to which the fastening sheet material is detachably attached are further provided, and the indicator portion is provided on the fastening sheet material or the sheet material forming the attachment portion.

  According to a fifth aspect of the present invention, in the disposable absorbent article according to any one of the first to fourth aspects, the indicator portion is provided by printing on a material constituting the absorbent article.

  According to the first aspect of the present invention, since the indicator portion indicating the position of the fracture portion is provided, the user can easily recognize the presence of the fracture portion.

  Also, by providing the indicator portion so as to indicate the position of the lower end portion of the rupture portion, when the exterior material or the like is broken by the rupture portion, the user accidentally breaks the inner absorbent main body together. Can be prevented more effectively.

  According to the second aspect of the present invention, it is possible to make the user easily recognize the breakage portion provided in the exterior material, and it is possible to prevent troubles such as accidental breakage of the absorbent main body.

  According to the third aspect of the invention, the lower portion of the fracture portion can be broken with a smaller pulling force than other portions, and the fracture operation of the fracture portion is performed from the lower side by the indicator portion. Therefore, the user can easily perform the breaking operation of the breaking portion.

  Moreover, since it is the structure which reduces the tensile strength of a fracture | rupture part partially in the lower part, a fracture | rupture operation | work can be made easy, maintaining the tensile strength of the whole fracture | rupture part.

  According to the fourth aspect of the present invention, the index portion can be accurately and easily provided at an appropriate position. That is, in the manufacturing process of the disposable absorbent article, the conveyance speed of the component material tends to be slower as the size along the conveyance direction of the component member constituting the absorbent article is smaller. The size of the fastening sheet material or the sheet material forming the adhering portion is smaller than the size of the component member on the main body side of the absorbent article to which they are applied. For this reason, when the index portion is formed on the fastening sheet material or the sheet material that forms the adhering portion, the transport speed of the fastening sheet material or the sheet material is slow, so that the index portion is accurately positioned at an appropriate position on the sheet material. And can be easily provided.

  According to the invention described in claim 5, since the indicator portion is provided by printing, the indicator portion of various forms can be easily formed.

  FIG. 1 is a perspective view of a disposable absorbent article (hereinafter simply referred to as “absorbent article”) according to an embodiment of the present invention, and FIG. 2 is a broken view of a front left portion of the absorbent article of FIG. FIG. 3 is a perspective view showing a state in which the left and right side joints are developed in the absorbent article of FIG. 1, and FIG. 4 is a cross-sectional view taken along line AA in FIGS. FIG. In the present specification, the term “front / rear / left / right” refers to the wearer. For example, the left hand side of the wearer is referred to as the left and the right hand side is referred to as the right. Moreover, the longitudinal direction Y (refer FIG. 3) of the absorbent article 1 means the direction corresponding to the up-down or front-back direction of the absorbent article 1, and the horizontal direction X (refer FIG. 3) of the absorbent article 1 is absorptive. The direction corresponding to the left-right direction of the article 1 is said.

  As shown in FIGS. 1 to 4, the absorbent article 1 includes an absorbent article body 2 and a pair of right and left fastening sheets 3 </ b> L and 3 </ b> R that are fastening members for re-fastening provided in the absorbent article body 2. And. The absorbent article main body 2 is disposed at a position corresponding to the outer packaging material 11 provided on the outer side of the absorbent article main body 2 and the crotch portion of the absorbent article main body 2 and is bonded to the skin surface side of the outer packaging material 11. The main body 12 is provided.

  The exterior material 11 includes a front part 13 applied to the front part of the wearer and a back part 14 applied to the back part of the wearer. In addition, although the example where the front part 13 and the back part 14 of the exterior material 11 are configured separately is shown here, the front part 13 and the back part 14 may be continuously connected and integrated.

  The left and right edge portions 13a of the front portion 13 and the left and right edge portions 14a of the back portion 14 are joined to each other by predetermined joining means in a state of facing each other, thereby forming left and right side joint portions 15. For this reason, this absorbent article 1 has a pants-type configuration having a waist opening 16 and left and right leg openings 17L and 17R. As a joining means of the side joining part 15, it is performed by any one of ultrasonic welding, heat welding, adhesion by an adhesive (for example, hot melt adhesive), or a combination thereof.

  Breaking portions 18 </ b> L and 18 </ b> R for breaking the front portion 13 are provided at portions of the front portion 13 that are shifted to the left and right from the center in the lateral direction X. The broken portions 18L and 18R are perforated or the like, and the broken portions 18L and 18R are in a connected state when shipped from the factory. And when a user fractures | ruptures these fracture | rupture parts 18L and 18R, the front part 13 will be parted in the position of the fracture | rupture parts 18L and 18R, and the absorbent article 1 can be expand | deployed. For this reason, for example, in a state where the rupture portions 18L and 18R are connected, the absorbent article 1 can be used by peeling the legs through the leg openings 17L and 17R (that is, a pants-type disposable). Can be used as a diaper). Moreover, in the state which cut | disconnected the fracture | rupture parts 18L and 18R, for example, this absorbent article 1 can be applied to a wearer's buttocks, and can be mounted | worn like a diaper (namely, a tape type disposable diaper which can be refastened) Can be used as).

  The front portion 12a facing the front portion 13 of the absorbent main body 12 has a bonding means such as an adhesive (for example, a hot melt adhesive) on the skin side surface in an intermediate region between the fracture portions 18L and 18R of the front portion 13. It is joined using. Moreover, the back side part 12c facing the back part 14 of the absorptive main body 13 is joined to the skin side part of the back part 14 using joining means, such as an adhesive (for example, hot melt adhesive).

  Further, the width in the lateral direction X of the front portion 12a of the absorbent main body 12 is set to be larger than the interval between the fracture portions 18L and 18R, and the left and right edges of the front portion 12a exceed the fracture portions 18L and 18R in the lateral direction. X protrudes greatly outside. For this reason, the fracture | rupture parts 18L and 18R are provided in the part which overlapped with the absorptive main body 12 in the front part 13. FIG.

  The left and right fastening sheet materials 3L and 3R include a substantially sheet-like base material sheet 21 formed of a nonwoven fabric or the like, and a first attachment portion 22 provided on the free end side of the base material sheet 21. ing. The first attachment portion 22 is detachably attached to a second attachment portion 23 provided on the outer surface of the front portion 13 of the absorbent article body 2. The second adhesion portion 23 is provided on the outer surface side of the portion located between the fracture portions 18L and 18R of the front portion 13. As long as the 1st adhesion part 22 and the 2nd adhesion part 23 are the structures which can be reattached mutually, arbitrary structures are employable. For example, you may make it comprise the hook_and_loop | surface fastener which the 1st adhesion part 22 and the 2nd adhesion part 23 re-fasten by mechanical engagement. For example, a hook material can be used for the first attachment portion 22 and a loop material with which the hook material is engaged with the second attachment portion 23 can be used. In this case, the second adhering portion 23 may be formed by sticking a sheet-like loop material to the front portion 13, or the surface itself of the nonwoven fabric or the like constituting the outer surface of the front portion 23 may be the first. You may utilize as 2 adhesion part 23. Here, as a representative example, a hook material is used for the first attachment portion 22 and a loop material is used for the second attachment portion 23. In this way, by using the second attachment portion 23 provided on the outer surface of the absorbent article 1 as a loop material, the second attachment portion 23 may undesirably engage with the wearer's clothes and bedding, or during manufacture. Troubles such as being caught in the manufacturing equipment can be prevented.

  As a hook material constituting the hook-and-loop fastener, a polyolefin hook material having a plurality of hook portions such as a hook shape, a hook shape, and a mushroom shape can be used. As the loop material, any loop material that can be engaged with the hook material such as woven fabric, knitted fabric, and non-woven fabric can be used.

  As another specific example, a loop material may be used for the first attachment portion 22 and a hook material may be used for the second attachment portion 23. Alternatively, an adhesive sheet may be used for the first attachment portion 22 and the adhesive sheet may be detachably attached to the second attachment portion 23.

  The base sheet 21 of the fastening sheet materials 3L and 3R includes a main body portion 21a and two tongue pieces 21b that are divided into two forks from the main body portion 21a and extend to the free end side of the base sheet 21. Have. In a state where the base sheet 21 is folded in two along a folding line along the vertical direction Y, a portion facing the front portion 13 of the main body portion 21a is made of an adhesive (for example, a hot melt adhesive) or the like. It is joined to the skin surface side of the front portion 13 by the joining means.

  And such fastening sheet | seat material 3L, 3R can expand | deploy the part which the fastening sheet | seat material 3L, 3R turned back, as shown by arrow E1 of FIG. 2 when the fracture | rupture parts 18L, 18R of the front part 13 are fractured | ruptured. It is like that. Then, the absorbent article 1 is attached to the wearer like a diaper by attaching the first attachment portion 22 of the developed fastening sheet materials 3L and 3R to the second attachment portion 23 of the front portion 13. Can be done. Accordingly, the absorbent article can be confirmed by attaching and detaching the fastening sheet materials 3L and 3R to confirm the contamination of the absorber 41, which will be described later, or by adjusting the attachment position of the fastening sheet materials 3L and 3R to the second attachment portion 23. 1 can be fitted to the wearer's body shape. Moreover, since the fastening sheet materials 3L and 3R are provided on the left and right, the absorbent article 1 that can be refastened on both the left and right sides can be configured.

  Further, in the left and right overhanging regions located outward in the lateral direction X of the breaking portions 18L and 18R in the front portion 12a of the absorbent main body 12, an adhesive member 24 is attached to the surface facing the front portion 13 side with an adhesive (for example, , Hot melt adhesive) or the like. This attachment member 24 is for attaching the said overhang | projection area | region in the front side part 12a of the absorptive main body 12 to the front part 13 side, for example, is comprised by the hook material.

  A waist elastic member 26 is stretched along the upper edge of the upper edge of the front portion 13. Further, a waist elastic member 27 is stretched along the upper edge of the upper edge of the back portion 14. Further, the leg elastic members 28 and 29 are provided in a stretched state along the edges of the edge portions forming the front portion 13 and the leg openings 17L and 17R. In addition, the elastic member 30 for the body is extended along the lateral direction X at a portion (an intermediate portion of the front portion 13 in the longitudinal direction Y) located on the left and right side portions of the front portion 13 around the waist of the wearer. It is given in the state. Further, in the portion of the back portion 14 around the wearer's torso (the middle portion of the back portion 14 in the longitudinal direction Y), the portion of the back body 14 where the absorbent main body 12 is joined is avoided, and the body elasticity along the lateral direction X is avoided. The member 31 is provided in an extended state.

  The front portion 13 is configured by sandwiching elastic members 26, 28, 30 between two sheet materials 36, 37 made of nonwoven fabric or the like. The joining of the sheet materials 36, 37 and the joining of the elastic members 26, 28, 30 to the sheet materials 36, 37 use joining means such as an adhesive (for example, hot melt adhesive), heat welding, ultrasonic welding or the like. Done. Moreover, although illustration is abbreviate | omitted, the back part 14 is also comprised by inserting | pinching the elastic members 27, 29, and 31 between the two sheet materials which consist of a nonwoven fabric etc. FIG.

  As shown in FIGS. 3 and 4, the absorbent main body 12 includes a main body portion 42 provided with an absorbent body 41 that absorbs the excrement of the wearer, and left and right standing portions 43. The main body 42 is configured by sandwiching the absorber 41 between a water-repellent or liquid-impervious back sheet 44 and a liquid-permeable top sheet 45. The standing portion 43 is formed by joining the left and right edges of the back sheet 44 and the top sheet 45 to each other and folding them back to the skin surface side of the main body 41. The joining of the back sheet 44 and the top sheet 45 and the joining of the absorber 41 to the back sheet 44 or the top sheet 45 are performed by a joining means such as an adhesive (for example, a hot melt adhesive). At the free end portion of the standing portion 43, the left and right outer edge portions of the back sheet 44 are folded back inward in a substantially bag shape, and the elastic member 46 for standing rises along the free end portion so as to be wrapped in the back sheet 44. Granted in an expanded state. And the standing part 43 stands | starts up to a wearer's skin side by the contraction force of this elastic member 46 for standing | standby, and fits a skin surface.

  Moreover, in the absorbent article 1 which concerns on this embodiment, as shown in FIG. 1, the indicator part 51 which shows the position of the fracture | rupture parts 18L and 18R is provided. For this reason, the user can easily recognize the presence of the fracture portions 18L and 18R. As for the arrangement position and form of the index portion 51, any configuration can be adopted as long as the user can easily recognize the positions of the fracture portions 18L and 18R.

  More specifically, the index portion 51 is provided for each of the break portions 18L and 18R so as to indicate the position of the lower end portion of the break portions 18L and 18R. An arrow shape is adopted as the shape of the indicator 51, and the tip of the arrow is provided so as to point to the lower end of each of the fracture portions 18L and 18R. More specifically, the index portion 51 is provided on the lateral direction X outward side of the fracture portions 18L and 18R. The indicator 51 has a color different from that of the base material sheet of the absorbent article 1.

  Thus, by providing the indicator portion 51 so as to indicate the position of the lower end portion of the breaking portions 18L and 18R, when the front portion 13 is broken at the breaking portions 18L and 18R, the user mistakenly absorbs the main body 12. In addition, troubles that break together can be prevented more effectively. That is, since the upper edge part of the absorbent main body 12 generally overlaps with the upper edge part of the front part 13 or is disposed below the upper edge part as in the absorbent article 1 according to the present embodiment, from the user. The upper edge part of the absorptive main body 12 is configured to be hardly visible when viewed. For this reason, like the absorbent article 1 which concerns on this embodiment, when the fracture | rupture parts 18L and 18R are provided in the part overlapped with the absorptive main body 12 in the front part 13, the fracture | rupture part 18L from an upper end part. , 18R may be broken, the absorbent main body 12 may be broken together with the front portion 13. Therefore, in the present embodiment, the index portion 51 causes the user's attention to be directed to the lower end portions of the breaking portions 18L and 18R, and is induced to be broken from the lower end portions of the breaking portions 18L and 18R. The trouble that the sex main body 12 is broken together with the front portion 13 is prevented.

  Further, with respect to the tensile strength of the breaking portions 18L and 18R (the force necessary for pulling and breaking the breaking portions 18L and 18R), the lower portion of the breaking portions 18L and 18R can be broken with a smaller pulling force than the other portions. It is said that. More specifically, as the tensile strength of the breaking portions 18L and 18R, the lower portion of the breaking portions 18L and 18R (for example, a section having a predetermined dimension (for example, about 50 mm) from the lower end, or the total length of the breaking portions 18L and 18R). On the other hand, the tensile strength is set to be smaller than that of the other portions of the fracture portions 18L and 18R by a method such as changing the perforation pattern in a predetermined proportion (for example, about 10 to about 30%) from the lower end. The rate at which the tensile strength is reduced is set to, for example, about 10%, and the tensile strength of the portions other than the lower portions of the breaking portions 18L and 18R is 10 to 60 N / 50 mm (for breaking at a width of 50 mm). Necessary force), more preferably 20 to 50 N / 50 mm Test for tensile strength is performed by, for example, autogut manufactured by Shimadzu Corporation. A load cell (for example, model number SBL-500N) was set in an apparatus of AG-10kNI or lower, more specifically, for example, from the front portion 13 of the exterior material 11 of the absorbent article 1 to the fracture portion 18L. The sample is cut to include a size of 50 mm in the vertical direction and 30 to 120 mm in the horizontal direction, and the length in the horizontal direction is adjusted so that it can be held by the chuck of the test apparatus. A line parallel to the perforation is drawn at a position about 12.5 mm away from the perforation (breaking portions 18L and 18R) of the sample on both sides, and the sample is sandwiched by the chuck along this line (this (The distance between chucks is 25 mm.) And the sample is pulled at a test speed of 300 mm / min, from the start of pulling until it breaks. The maximum point strength was measured in degree, and tensile strength.

  In this way, the lower portions of the breaking portions 18L and 18R can be broken with a smaller pulling force than the other portions, and the breaking operation of the breaking portions 18L and 18R is performed from the lower side by the index portion 51. Therefore, the user can easily perform the breaking operation of the breaking portions 18L and 18R.

  Moreover, since it is the structure which lowers the tensile strength of the fracture | rupture parts 18L and 18R partially in the lower part, a fracture | rupture operation | work can be made easy, maintaining the tensile strength of the whole fracture | rupture parts 18L and 18R. .

  In addition, the indicator 51 is provided by printing on the material constituting the absorbent article 1. As a result, various types of index portions 51 can be easily formed.

  Moreover, the indicator part 51 may be provided in a directly visible part of the outer surface of the absorbent article 1, or may be provided in a part visible through a member outside the absorbent article 1. This is because a sheet material such as a non-woven fabric constituting the absorbent article 1 is often used so that the state of the back surface side can be visually recognized through the sheet material.

  For example, in the case where the index part 51 is provided on the lateral direction X outward side of the fractured parts 18L and 18R, a configuration in which the index part 51 is printed on the sheet material 36 outside the front part 13 and the index part 51 is the fastening sheet material 3L, The structure etc. which were provided in the main-body part 21a of the base sheet 21 of 3R are considered.

  Here, the configuration in which the indicator portion 51 is provided on the base sheet 21 of the fastening sheets 3L and 3R has an advantage that the indicator portion 51 can be provided accurately and easily at an appropriate position. That is, in the manufacturing process of the absorbent article 1, the conveyance speed of the component material tends to be slower as the size along the conveyance direction of the component member constituting the absorbent article 1 is smaller. The size of the base sheet 21 is smaller than the size of the component member (for example, the front portion 13) on the main body side of the absorbent article 1 to which the base sheet 21 is applied. For this reason, when the index part 51 is formed on the base sheet 51 by printing or the like, the transport speed of the base sheet 21 is slow, so the index part 51 is provided accurately and easily at an appropriate position on the base sheet 51. be able to.

  Below, with reference to FIG. 5 thru | or FIG. 6, the modification of the structure regarding the parameter | index part 15 shown in FIG. 1 is demonstrated.

  In the configuration shown in FIG. 5, the index portion 51 is provided by being printed on a sheet material (for example, a loop material) constituting the second attachment portion 23 on the inner side in the lateral direction X of the fracture portions 18L and 18R. As described above, when the index portion 51 is provided on the sheet material constituting the adhesion portion 23, the same effect as the above-described configuration in which the index portion 51 is provided on the base sheet 21 can be obtained.

  In the configuration shown in FIG. 6, the indicator portion 51 is provided on the outer surface of the absorbent main body 12.

  In the above-described embodiment, the breaking portions 18L and 18R and the indicator portion 51 are provided on the front portion 13, but these may be provided on the back portion 14.

It is a perspective view of the disposable absorbent article which concerns on one Embodiment of this invention. It is a perspective view which shows the state which fractured | ruptured and developed the fracture | rupture part of the front left side in the disposable absorbent article of FIG. It is a figure which shows the state which expand | deployed the side junction part on either side in the disposable absorbent article of FIG. It is AA sectional drawing of FIG.1 and FIG.3. It is a perspective view which shows the modification of the structure of FIG. It is a perspective view which shows the modification of the structure of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Absorbent article, 2 Absorbent article main body, 3L, 3R Fastening sheet material, 11 Exterior material, 12 Absorbent main body, 12a Front side part, 12c Back side part, 13 Front part, 13a Edge part, 14 Back part, 14a Edge part 15 side joint part, 16 waist opening part, 17L, 17R leg opening part, 21 base material sheet, 21a body part, 21b tongue piece part, 22 1st attaching part, 23 2nd attaching part, 24 attaching member, 26, 27 Elastic member for waist, 28, 29 Elastic member for leg, 30, 31 Elastic member for body, 36, 37 Sheet material, 41 Absorber, 42 Main body part, 43 Standing part, 44 Back sheet, 45 Top sheet, 46 Elastic member for standing, 51 Indicator part.

Claims (5)

Disposable absorption having a waist opening and left and right leg openings, and a portion positioned on the wearer's front side or back side, and a break portion for breaking the portion is provided along a substantially vertical direction. A sex product,
A disposable absorbent article, characterized in that an indicator portion indicating the position of the lower end portion of the fracture portion is provided. The disposable absorbent article according to claim 1,
An exterior material constituting at least a portion applied to the wearer's torso,
An absorbent main body that has an absorbent body and is disposed on a portion of the absorbent article that is applied to the crotch portion of the wearer and bonded to the skin surface side of the exterior material;
Further comprising
The fracture portion is provided in the exterior material along a substantially vertical direction,
The disposable absorbent article, wherein the indicator portion is provided in a portion that is visible from the outside of the absorbent article directly or through an outer member. The disposable absorbent article according to claim 1 or 2,
The rupture portion is configured to be ruptured along the rupture portion,
About the tensile strength of the said fracture | rupture part, the lower side part of the said fracture | rupture part can be fractured | ruptured with a smaller tensile force than another part, The disposable absorbent article characterized by the above-mentioned. The disposable absorbent article according to any one of claims 1 to 3,
A fastening sheet material for re-fastening the broken part when the broken part is broken, and an attachment part to which the fastening sheet material is detachably attached;
The disposable absorbent article, wherein the indicator portion is provided on the fastening sheet material or a sheet material forming the adhering portion. The disposable absorbent article according to any one of claims 1 to 4,
The disposable absorbent article, wherein the indicator portion is provided by printing on a material constituting the absorbent article.

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