JP2006141854A - Underpants - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide underpants easily cut along cutting line parts. <P>SOLUTION: The underpants are provided with a front belly part 2 and a back part continued into an approximately annular shape, and a crotch part 4 formed continuously to the front belly part 2 and the back part; and when the underpants are used as a diaper, the front belly part 2 is broken into a middle front belly portion 2c at substantially the center part and front belly portions 2a and 2b on left and right sides. The broken part is formed with the cutting line parts 17a and 17b. The cutting line parts 17a and 17b are formed by forming two weakened line parts WL in parallel to each other and are broken by grasping and pulling the part between the weakened line parts WL. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to pants including disposable pants used as pants, diapers and the like.

  As this type of conventional disposable pants, there is a technique described in Patent Document 1. In the pants described in Patent Document 1, cutting lines are provided on both the left and right sides of the front body, the front body can be separated at the portion of the cutting lines, and the front body and the back body are joined to the left and right joints. Adhesive pieces are provided. And when the front body is cut off by the cutting line, the front body and the back body are fastened by the left and right attachment pieces.

JP-A-5-317356

  However, in the disposable pants, the cutting line is constituted by a single perforation. For this reason, the cutting operation is performed by holding the one side portion of the perforation, and the cutting force is easily applied from the perforation to the side. For this reason, the pants are easily broken along unintended lines other than the perforations.

  Then, an object of this invention is to provide the underpants which can be easily cut | disconnected along a cutting line.

  A pant according to a first aspect of the present invention includes a front part and a back part that are substantially annularly connected, and a crotch part that is provided continuously between the front part and the back part, the front part, the back part, and A cutting line portion is formed on at least one of the crotch portions, and the cutting line portion has a plurality of weakening line portions formed substantially in parallel.

  The underpants according to the second aspect of the present invention are a front abdomen and a back part that are continuous in a substantially annular shape, a crotch part that is provided continuously between the front abdomen and the back part, and an absorber provided in the crotch part, The front abdomen is a part where the crotch part is continuous, and has a cutting line part for breaking the middle front abdomen part of the substantially central part and the left and right front abdomen, the cutting line part is a plurality of The weakened line portions are formed substantially in parallel.

  In these pants, a color different from the ground color may be worn on the weakened line portion.

  Further, a knob portion may be formed at one end of the band-like region portion between the weakening line portions.

  Further, a cut may be formed at one end of each of the weakened line portions.

  According to the pants according to the first aspect of the present invention, since the cutting line portion is formed by a plurality of weakening line portions being substantially parallel, it is easy to apply a force when cutting along the extending direction. . Therefore, it can cut | disconnect easily along a cutting line part.

  Moreover, according to the underpants according to the second aspect of the present invention, the cutting line portion is formed by forming a plurality of weakening line portions substantially in parallel, so that the force when cutting acts along the extending direction. Easy to do. Therefore, it can cut | disconnect easily along a cutting line part.

  In this case, a mark may be attached to the cutting line portion or the vicinity thereof. As a mark, the mark may include an indicia colored on the weakened line portion with a color different from the ground color. The mark may include an indicia displaying at least one of a character, a figure, and a symbol in the vicinity of the cutting line portion.

  Furthermore, if a knob portion is formed at one end of the band-like region between the weakened line portions, the knob portion can be easily pulled along the cutting line portion by pulling the knob portion.

  Further, when a cut is formed at one end of each weakened line portion, each weakened line portion is easily cut starting from the cut. For this reason, it can cut | disconnect easily along a cutting line part more reliably.

<Overview>
With reference to FIGS. 1-9, the disposable pants 1 which concern on embodiment of this invention are demonstrated. This disposable pant 1 includes a front abdomen 2 and a back part 3 that are connected in a substantially ring shape, and a crotch part 4 that is provided between the front abdomen 2 and the back part 3 and is used as a pant or a diaper. It is possible. In the description of the disposable pants 1, the left and right refer to the left hand side and the right hand side as viewed from the wearer.

  The front abdominal part 2 and the back part 3 refer to the part mainly facing the wearer's front part and back part in the disposable pants 1. The left and right edges of the front abdomen 2 and the left and right edges of the back part 3 are joined together, whereby the front abdomen 2 and the back part 3 are connected in a substantially annular shape. For this reason, the left and right edges of the disposable pants 1 are formed with a left side joint 11a and a right side joint 11b that join the left and right edges of the front abdomen 2 and the left and right edges of the back portion 3. Yes. The joining at the side joining portions 11a and 11b is performed by either one of adhesion using an adhesive, for example, a hot melt adhesive, ultrasonic welding (or heat welding), or a combination of both.

  The crotch part 4 refers to a part of the disposable pant 1 that mainly faces the wearer's crotch part, and the front crotch part 4a and the back crotch part 4b are connected to the front abdomen 2 and the back part 3 respectively. In this embodiment, the front crotch part 4a and the back crotch part 4b of the crotch part 4 are joined to the front abdominal part 2 and the back back part 3 by an adhesive, for example, a hot melt adhesive. As a modification, the crotch portion 4 may be integrally formed by a member continuous with one or both of the front abdominal portion 2 and the back portion 3.

  A waist opening Q is formed by the upper edge portions 12a and 13 of the front abdomen 2 and the back portion 3 that are connected in a substantially annular shape. A left leg opening Ra is formed by the lower edge portion 14a of the left front abdominal portion 2a of the front abdominal portion 2, the inclined edge portion 15a obliquely lower left of the back portion 3, and the left edge portion 16a of the crotch portion 4. A right leg opening Rb is formed by the lower edge 14 b of the right front abdomen 2 b of the front abdomen 2, the inclined edge 15 b obliquely lower right of the back part 3, and the right edge 16 b of the crotch 4.

<Front abdomen>
As shown in FIG. 1, the front abdominal part 2 has a substantially horizontally long rectangular shape in plan view, and includes a left front abdominal part 2 a, a right front abdominal part 2 b, and a middle front abdominal part 2 c located between them. The middle front abdomen 2c corresponds to an intermediate region of the present invention. A left cutting line 17a is formed between the left front abdomen 2a and the middle front abdomen 2c, and the front abdomen 2 is vertically cut between the right front abdomen 2b and the middle front abdomen 2c. A right cutting line portion 17b that is vertically cut is formed. As shown in FIG. 6, a joining portion 18 of the crotch portion 4 with the front crotch portion 4 a is formed in the middle front abdominal portion 2 c. The joining at the joining portion 18 is performed using an adhesive, for example, a hot melt adhesive.

  As shown in FIGS. 1, 2, 5, and 6, the left and right cutting line portions 17a and 17b are formed at positions on the inner side of both side edges of the front crotch portion 4a. The cutting line portions 17a and 17b are formed by a plurality of (here, two) weakening line portions WL formed substantially in parallel. The weakened line portion WL is formed by, for example, heating the front abdominal portion 2 in a linear manner (for example, heat sealing), or by intermittently cutting and processing into a perforated shape, or exceeding the linear shape. It is formed by sonic processing (for example, ultrasonic sealing). Then, as shown in FIGS. 2 to 4 and 9, the front abdomen 2 can be separated at the portions of the cutting line portions 17a and 17b by breaking the cutting line portions 17a and 17b. Thereby, the front abdominal part 2 is a portion where the crotch part 4 is continuous, and is broken into a middle front abdominal part 2c and a left and right front abdominal part 2a, 2b. Here, the cutting line portions 17a and 17b may be formed in a straight line shape, or may be formed in a curved shape as necessary.

  Elastic elastic members 19a and 19b for waist are attached to the upper edge portions 12a and 12b of the left front abdominal portion 2a and the right front abdominal portion 2b in a state of being stretched in the left-right direction. Leg elastic members 20a, 20b are attached to the lower edge portions 14a, 14b of the left front abdominal portion 2a and the right front abdominal portion 2b in a state of being stretched in the left-right direction. The elastic members 21a, 21b for the body are attached to the portions between the upper edge portions 12a, 12b and the lower edge portions 14a, 14b of the left front abdominal portion 2a and the right front abdominal portion 2b in a state of being stretched in the left-right direction. By contraction / extension of these elastic members 19a, 19b, 20a, 20b, 21a and 21b, the front abdomen 2 (particularly the left front abdomen 2a and the right front abdomen 2b) can be softly fitted along the wearer's abdomen.

  As shown in FIG. 6, the front abdomen 2 is configured by sandwiching elastic members 19 a, 19 b, 20 a, 20 b, 21 a, and 21 b between an inner layer sheet 57 on the skin surface side and an outer layer sheet 58 on the outer side. Has been.

  As shown in FIGS. 1 to 6, a substantially sheet-like left adhering piece 22a and right adhering piece 22b are bonded to the inner front side of the left front abdominal part 2a and the right front abdominal part 2b and to the end on the middle front abdominal part 2c side. It is joined by an agent, for example, a hot melt adhesive. The attached pieces 22a and 22b are folded inside the cutting line portions 17a and 17b in the pants form (see FIG. 1). When the cutting line portions 17a and 17b are broken and used in the form of a diaper, the adhering pieces 22a and 22b extend from the end portions of the left front abdominal portion 2a and the right front abdominal portion 2b and It is detachably attached to the outer surface (see FIG. 8).

  A planar attachment portion 23 is provided on the outer surface side of the middle front abdominal portion 2c as a first attachment / detachment portion for attaching the attachment pieces 22a, 22b. The horizontal width of the adhering portion 23 is set to be equal to or smaller than the interval between the left and right cutting line portions 17a and 17b (that is, the horizontal dimension of the middle front abdominal portion 2c), and the vertical width is substantially equal to the vertical dimension of the adhering pieces 22a and 22b. Are set equal.

  The adhering pieces 22a and 22b each have a substantially vertically elongated main body 24 and two projecting portions 25 and 26 that are bifurcated vertically from the main body 24 and extend toward the free end thereof. is doing. As shown in FIG. 6, the outer end of the main body 24 in the left-right direction is an inner surface side of the left front abdomen 2a and the right front abdomen 2b with an adhesive 66, for example, a hot melt adhesive, and the cutting line portions 17a, 17b. It is joined to the portion on the near side of the side end.

  Adhering portions 27 and 28 are respectively provided on the inner surface sides (one surface on the side facing the adhering portion 23 in the form of a diaper) of the overhang portions 25 and 26 of the adhering pieces 22a and 22b. The adhering pieces 22a and 22b are detachably fixed to the adhering portion 23 via the adhering portions 27 and 28.

  In addition, a portion of the inner surface of the attachment pieces 22 a and 22 b that is closer to the base end than the attachment portions 27 and 28 (a portion on the inner surface side of the main body portion 24) is also referred to as an attachment portion 29. Then, with the adhering portions 27 and 28 of the overhanging portions 25 and 26 of the adhering pieces 22a and 22b fixed to the adhering portion 23, the adhering portion 50 described later is also disposed on the inner surface side of the main body portion 24 of the adhering pieces 22a and 22b. The attachment 29 is detachably attached (see FIG. 6).

  Moreover, the other surface side (outer surface side) opposite to the surface on which the attachment portions 27 and 28 are provided in the attachment pieces 22a and 22b is also an attachment portion. The attachment portion is configured such that the attachment portions 27 and 28 can be detachably attached.

  Then, in a state where the attachment piece 22a (or 22b) on one side is fixed to the attachment portion 23 via the attachment portions 27 and 28, the attachment piece 22b (or 22a) on the other side is attached to the attachment piece 22a on the one side. (Or 22b) can be fastened so as to overlap.

  In addition, the arrangement | positioning area | region of the adhesion part on the outer surface side of adhesion piece 22a, 22b may be the whole or a part of the other surface side of adhesion piece 22a, 22b, but the front-end | tip part of overhang | projection part 25,26 There is an advantage that the attachment pieces 22a and 22b are easily overlapped with each other and fixed firmly.

  As specific examples of the adhering portions 23, 29, etc., a loop side member having a nonwoven fabric, a woven fabric, a knitted fabric or the like in which a fine loop structure is densely formed on the surface can be considered. Further, as a specific example of the adhering portions 27, 28, 50, a hook side member in which a fine hook structure that is detachably engaged with the loop side member is densely formed on the surface can be considered.

  More specifically, as the adhering portions 23, 29, etc., for example, a plastic film composite material having a nonwoven fabric, a woven fabric or the like suitably used as a loop side member of a hook-and-loop fastener on the surface is used. As the attachment parts 23, 29, etc., a structure in which the loop side member is attached to the middle front abdomen 2c or the attachment pieces 22a, 22b, or the outer surface of the middle front abdomen 2c or the outer faces of the attachment pieces 22a, 22b, The inner surface itself may function as a loop side member. For this purpose, for example, a material having a loop structure is selected as the material of the adhering pieces 22a and 22b and the middle front abdomen 2c, or the required portions on the surface of the adhering pieces 22a and 22b and the middle front abdomen 2c are fluffed. Or may be processed so as to have a loop structure by weaving hair into the adhering pieces 22a, 22b and the middle front abdomen 2c.

  As the adhering portions 27, 28, and 50, a plastic film having pins that are densely formed on a surface that is preferably used as a hook-side member of a hook-and-loop fastener is used.

  Further, as other specific examples of the adhering portions 23 and 29, a plastic film or the like which is surface-treated so as to have releasability with an adhesive, for example, a pyroyl process, can be considered. Possible adhesives are conceivable.

  It should be noted that in the specific examples of the adhering portions 23 and 29 and the adhering portions 27, 28, and 50, their configurations may be interchanged.

  Moreover, in this embodiment, the front-end | tip part of each overhang | projection part 25,26 of the adhesion pieces 22a and 22b is the knob part 31 (refer FIG. 4) in order to make it easy to pinch the adhesion pieces 22a and 22b. The knob portion 31 is not provided with the attachment portions 27 and 28.

  In such a configuration, as shown in FIG. 9, when the upper end portion of the narrow strip portion between the weakened line portions WL is grasped and pulled downward by the respective cut line portions 17a and 17b, the front abdominal portion 2 becomes the weakened line portion WL. Torn. At this time, since the upper end portion of the narrow strip portion between the weakened line portions WL is grasped and pulled downward, a force hardly acts in a direction substantially orthogonal to the cutting line portions 17a and 17b. For this reason, the front part 2 is hard to tear in the direction substantially orthogonal to the cutting line parts 17a and 17b.

  Thus, when it breaks | disconnects at each cutting line part 17a, 17b, the right front abdominal part 2b unfolds to the right side integrally with the adhesion piece 22b. Moreover, the left front abdominal part 2a is united with the adhesion piece 22a, and is developed on the left side. At this time, the middle front abdominal part 2c is kept in a state of being joined to the crotch part 4, and remains outside the front crotch part 4a.

  For this reason, as shown in FIG. 1, the disposable pant 1 has a front portion 2 and a crotch portion 4 connected to each other by a joint portion 18 in a state before breaking the cutting line portions 17 a and 17 b (a state at the time of product shipment). Since it is fixed, it functions as a pant and can be easily raised and lowered in the same manner as a normal disposable pant without opening and closing means such as the attached pieces 22a and 22b. Further, in this state, even if the attachment pieces 22a, 22b and the attachment portion 23 are disengaged, the front abdominal portion 2 and the crotch portion 4 are not separated.

  In addition, when the disposable pants 1 are worn in the pants state, when the absorber 43 described later absorbs and holds the excrement, the cutting line portions 17a and 17b are broken and deployed, and the pants 1 Can be easily removed from the wearer. In this case, the pants 1 can be removed without taking off the wearer's clothes.

  Further, the cutting line portions 17a and 17b are broken, the front abdomen 2 is expanded, and the contamination state inside the pants 1 is confirmed, and then the adhering pieces 22a and 22b are expanded and engaged with the adhering portion 23. Thus, the pants 1 can be returned to the original pants state. Even when the pants 1 and an auxiliary pad such as a urine pad are used in combination, the auxiliary pads can be easily exchanged by attaching and detaching the attachment pieces 22a and 22b.

  Moreover, before putting it on, the pants 1 are unfolded in the state shown in FIG. 3 and placed on the wearer's buttocks and closed in the order of FIGS. It can also be used like In this case, the pants 1 can be worn and removed without taking off the wearer's clothes.

  Further, when the cut line portions 17a and 17b are used in a state in which they are broken, if the wearer's waist circumference is small, the two adhering pieces 22a and 22b can be fastened together. That is, with the attachment piece 22a (or 22b) on one side fixed to the attachment portion 23, the attachment piece 22b (22a) on the other side is overlaid on the attachment piece 22a (or 22b) on the one side. It can be made to adhere to the adhesion part 23 grade | etc., So that it may match.

  The attachment pieces 22 a and 22 b may be attached to the outer surface side of the front abdomen 2.

<Crotch>
As shown in FIG. 3 and FIG. 4, the crotch portion 4 has a substantially band-like shape that extends in the front-rear direction when deployed, and is located in the front crotch portion 4 a, the rear crotch portion 4 b, and the middle thereof. An intermediate crotch portion 4c is provided, which is mainly applied to the wearer's crotch portion with the middle crotch portion 4c as the center. As shown in FIG. 1, the front crotch portion 4 a is joined to the middle front abdominal portion 2 c by the joint portion 18 in a state of being superimposed on the inner surface side of the middle front abdominal portion 2 c. As shown in FIGS. 3 and 4, the back crotch portion 4 b is bonded and fixed to the back portion 3 in a state of being overlapped with the inner surface side of the back portion 3. Leg elastic members 40a and 40b are attached to the left edge 16a and the right edge 16b of the crotch part 4 in a state of being extended in the extending direction of the edges 16a and 16b.

  As shown in FIGS. 3 and 7, the crotch portion 4 is configured by sandwiching an absorbent body 43 between a liquid-permeable top sheet 41 and a liquid-impermeable back sheet 42. The absorber 43 has a predetermined lateral width and spreads in a belt shape in the front-rear direction with the middle crotch 4c as the center. On both the left and right sides of the absorbent body 43 on the inner surface side of the crotch portion 4, standing portions 44 a and 44 b extending along the extending direction of the crotch portion 4 are provided.

  For example, the top sheet 41 is composed of a liquid-permeable nonwoven fabric or the like, and the back sheet 42 is composed of a water-repellent nonwoven fabric or the like. The absorbent body 43 is, for example, a paper sheet such as tissue paper or a liquid-permeable non-woven sheet coated with a mass obtained by mixing a granular polymer absorbent body with a hydrophilic fiber aggregate layer such as pulverized pulp fiber or cellulose fiber. Wrapped in a sheet and molded into a predetermined shape.

  The portions of the top sheet 41 and the back sheet 42 that do not overlap with the absorber 43 are bonded to each other by an adhesive, for example, a hot melt adhesive. More preferably, the lateral width of the top sheet 41 covers the skin surface side of the absorber 43 and is set to be slightly narrower than the lateral width of the back sheet 42, and is a portion that protrudes forward, backward, left and right beyond the absorbent body 43 of the top sheet 41 Is bonded to the back sheet 42 by an adhesive, for example, a hot melt adhesive. Left and right side sheets 45a and 45b constituting upright portions 44a and 44b are joined to the skin surface side of the portion of the back sheet 42 that protrudes from the left and right sides of the top sheet 41 by an adhesive, for example, a hot melt adhesive. .

  Further, as shown in FIG. 6, both end edges in the front-rear direction of the side sheets 45 a and 45 b are joined to both end edges in the front-rear direction of the crotch portion 4 by an adhesive 60, for example, a hot melt adhesive. The inner side edges of the side sheets 45a and 45b are fixed by heat welding (or ultrasonic welding) or the like at the sealing portion 47 so as to wrap around the elastic member 46 extending in the front-rear direction. The standing portions 44 a and 44 b are erected in a direction in which the inner side edge portion in the left-right direction is contracted by the contraction force of the elastic member 46, thereby being pressed against the wearer's skin.

  Moreover, in this embodiment, as shown in FIG. 3, in the overlapping part which overlaps the waist part 3a of the front abdominal part 2 and the back part 3 in the crotch part 4, the right and left edges are inclined sides 48a, 48b, 49a, 49b. The lateral width is gradually reduced toward the edge in the front-rear direction.

  When the disposable pants 1 are raised and lowered by the inclined sides 48a and 48b, it is possible to prevent the front crotch portion 4a from being caught, turned up, bent, or affected on the wearer's skin, and smoothly raised and lowered. .

  Usually, in the region where the back portion 3 and the crotch portion 4 overlap, the contraction force of the back portion 3 tends to be weakened. However, by forming the trim region by the inclined sides 49a, 49b, The area of the stretchable portion gradually increases toward the upper side of the back portion 3, and this makes it easier for the back portion 3 to fit the back of the wearer.

  Moreover, the adhesion part 50 is provided in the both sides of the edge part by the side of the front abdominal part 2 of the crotch part 4 (refer FIG. 2, FIG. 4). This adhesion part 50 is formed in the position facing the adhesion part 29 of the inner surface side of adhesion piece 22a, 22b. Then, with the adhering portions 27 and 28 of the adhering pieces 22a and 22b being fixed to the adhering portion 23, the adhering portion 50 is detachably fixed to the attaching portion 29 on the inner surface side of the adhering pieces 22a and 22b. (See FIG. 8).

  As a modified example of the configuration of the crotch portion 4, the absorbent body 43 is not sandwiched between the sheets 41 and 42, but the absorbent body 43 is attached to the skin surface side of the sheet 42, and the sheet 41 is omitted. Also good. Or what joined the sheet | seat to the front-and-back edge part of the absorber 43 may be used as the crotch part 4, the absorber 43 is used as the crotch part 4 using the large sized absorber 43, and the sheet | seat 41, 42 may be omitted.

<Back part>
As shown in FIGS. 3 to 4, the back portion 3 has a form in which the left and right lower corners of a substantially rectangular shape are cut off obliquely when unfolded, and is hung from the waist portion on the back side of the wearer to the buttocks. It is applied to the part. For this reason, this back part 3 is connected to the lower part of the wearer's buttocks on the lower part of the waistline part 3a in a plan view substantially in the shape of a horizontally long belt mainly located in the waistline part on the back side of the wearer and the waistline part 3a. And a substantially trapezoidal flange portion 3b in plan view. A waist elastic member 51 is attached to the upper edge 13 of the waistline portion 3a in a state of being stretched in the left-right direction. The body elastic member 52 is disposed in the other region of the waistline portion 3a. It is attached in a stretched state. A leg elastic member 53a is attached to the inclined edge 15a diagonally to the lower left of the back portion 3 in an extended state along the edge 15a. The leg elastic member 53b is attached to the edge 15b in a state of being extended along the edge 15b. By contraction and extension of these elastic members 51, 52, 53a, and 53b, the back portion 3 can easily fit the wearer's back and buttocks.

  In particular, the collar portion 3b of the back portion 3 is configured such that the lateral width gradually decreases toward the lower side, and leg elastic members 53a and 53b are provided on the left and right inclined edges 15a and 15b. Therefore, when the edge portions 15a and 15b are contracted by the contraction force of the leg elastic members 53a and 53b, the heel portion 3b is easily fitted to the wearer's buttock.

  The leg elastic members 53a, 53b are attached to the heel part 3b continuously along the right and left inclined edges 15a, 15b and the lower edge part 15c of the heel part 3b, and then the absorber of at least the crotch part 4 A weakening process is performed on a portion 54 (see FIG. 4) that overlaps 43. The weakening process is to make a no tension state by cutting the elastic member of the portion 54 or performing a process of weakening the contraction force. This prevents an undesired distortion or the like in the absorber 43 due to the contraction force of the leg elastic members 53a and 53b, thereby preventing the absorption function from deteriorating.

<Other configurations and materials of each part>
The left and right elastic members 19a and 19b, the elastic members 20a and 20b, and the elastic members 21a and 21b provided in the front abdomen 2 are the same as in the case of the leg elastic members 53a and 53b, the elastic members 20a, 20b, and 21a. , 21b are provided in the front abdomen 2 continuously in the left-right direction via the middle front abdomen 2c, and then the weakening process is performed on the portions located in the middle front abdomen 2c of the elastic members 20a, 20b, 21a, 21b. preferable.

In addition, the material configuration of the adhering pieces 22a and 22b can be appropriately selected from a nonwoven fabric, a woven fabric, a knitted fabric, and a plus chip material. Especially, the nonwoven fabric manufactured by the combination of one or more manufacturing methods in the spun bond method, the air through method, the point bond method, the melt blow method, and the airlaid method is preferable. Furthermore, the nonwoven fabric manufactured by the spunbond method or the SMS method combining the spunbond method and the melt blow method with a basis weight of 30 to 100 g / m ² is preferable from the viewpoint of strength. Most preferred is a nonwoven fabric produced by the spunbond method with a basis weight of 50 to 85 g / m ² . The material can be appropriately selected from synthetic fibers such as polypropylene, polyethylene, polyester and polyamide, and natural fibers such as pulp and silk. Preferably, synthetic fibers such as polypropylene, polyethylene and polyester can be used. Of these, polypropylene and polyester fibers are mainly used. What is used as a component is strong and suitable. Most preferred is polyester fiber.

  Further, as the elastic members 19a, 19b, 20a, 20b, 21a, 21b, 40a, 40b, 46, 53a, 53b, elastic elastic materials (polyurethane yarn, polyurethane film, natural rubber, etc.) usually used for disposable pants are used. In a stretched state, it is stuck to a predetermined part of the pants 1 by sticking means such as hot melt adhesive, heat welding, ultrasonic welding or the like.

  As described above, the disposable pant 1 according to the present embodiment has the front abdominal part 2 and the cutting line parts 17a and 17b for breaking the middle front abdominal part 2c and the left and right front abdominal parts 2a and 2b, Since the cutting line portions 17a and 17b are formed by a plurality of weakening line portions WL being formed substantially in parallel, the cutting line portions 17a and 17b are grasped and pulled at the upper end of the narrow strip portion between the weakening line portions WL. 17b can be broken. For this reason, the force at the time of cutting hardly acts in the direction substantially orthogonal to the cutting line portions 17a and 17b, and easily acts along the extending direction of the cutting line portions 17a and 17b. For this reason, it is hard to tear to the direction substantially orthogonal to the cutting line parts 17a and 17b, and it can cut | disconnect easily along the cutting line parts 17a and 17b.

<Modification>
A mark may be attached to the cutting line portions 17a and 17b or the vicinity thereof.

  As an example of the mark, an example in which a color different from the ground color is applied to the weakened line portion WL can be given. For example, when the front part 2 is formed of a white member, the weakened line part WL may be colored light blue. In this case, only one of the plurality of weakening line portions WL may be colored.

  As another example of the mark, an example in which at least one of a character, a figure, and a symbol is displayed in the vicinity of the cutting line portions 17a and 17b can be given.

  In short, as the mark, various modes for allowing the user to easily visually recognize the positions of the broken line portions 17a and 17b can be adopted.

  According to the first modification, the cutting line portions 17a and 17b can be recognized relatively easily using the mark as a clue, and therefore the cutting operation at the cutting line portions 17a and 17b can be easily performed.

  Further, as in the second modified example shown in FIG. 10, a knob portion may be formed at one end portion of the band-like region portion between the weakened line portions WL. The knob portion 110 is a portion reinforced more than the surrounding portion, for example, by folding a part of the front abdomen 2 or overlapping a reinforcing material such as another cloth material, Formed by making.

  By forming such a knob portion 110, it is possible to easily grasp one end portion of the band-like region portion between the weakened line portions WL, and it is difficult for the band-like region portion to be cut off at the middle portion. Become. For this reason, it can cut | disconnect easily along the cutting line parts 17a and 17b by pulling with the knob | pick part 110. FIG.

  Further, as in the third modification shown in FIG. 11, a cutout WLa may be formed at one end of the weakened line portion WL. That is, the weakened line portion WL itself is a weakened portion that is more easily broken than other portions, but may be broken at other portions. Therefore, a cut WLa is formed in advance at one end thereof, and the weakened line portion WL is cut from the cut WLa as a starting point. Thereby, it can cut | disconnect easily along the weakening line part WL more reliably.

  The knob portion 110 and the cut WLa may be on the lower end side of the weakened line portion WL.

  The length dimension of the cut WLa can be cut at the weakened line portion WL starting from the cut WLa according to the material of the front abdomen 2, the mode of the weakened line portion WL, and the like, and the weakened line portion WL is inadvertently cut. It is set as appropriate as long as it is not cut.

  In the above-described embodiment and each modified example, the example in which the cutting line portions 17a and 17b are formed to break the middle front abdominal portion 2c and the left and right front abdominal portions 2a and 2b has been described. It can be applied to a pant having a part to be cut. That is, in various pants, the same configuration as the cutting line portions 17a and 17b can be applied to the cutting site.

  In particular, in an initial state at the time of shipment or the like, the pants are provided with a front part and a back part that are substantially ring-shaped, and a crotch part that is provided between the front part and the back part. As needed, it can apply to what is cut | disconnected suitably in a site | part. For example, the present invention can be applied to pants that are broken between the front part and the back part (horizontal part).

It is a front view of the disposable pants which concern on embodiment of this invention. It is a figure which shows the state which fractured | ruptured the right cutting line part of the disposable pants of FIG. 1, and expand | deployed the right front abdomen. It is a figure which shows the state which expand | deployed the crotch part of the disposable pants of FIG. It is the figure which looked at the disposable pants of FIG. 3 from the opposite side of FIG. It is a principal part enlarged view which shows a cutting line part. It is sectional drawing of the part along the C1-C1 line | wire of the disposable pants of FIG. It is sectional drawing of the part along the C2-C2 line | wire of the disposable pants of FIG. It is a figure which shows the state which fastened the adhesion piece on either side to the middle front abdomen. It is explanatory drawing which shows the state fractured | ruptured at a cutting line part. It is a figure which shows the 2nd modification of a cutting line part. It is a figure which shows the 3rd modification of a cutting line part.

Explanation of symbols

  1 pants, 2 front abdomen, 2a, 2b left and right front abdomen, 2c middle front abdomen, 4 crotch, 17a, 17b cutting line part, 22a, 22b adhering piece, 110 knob part, WL weakening line part, WLa notch

Claims (7)

An anterior abdomen and a back part connected in a substantially annular shape;
A crotch portion provided continuously between the front abdomen and the back,
With
A pant having a cut line portion formed in at least one of the front abdomen, the back portion, and the crotch portion, and the cut line portion having a plurality of weakening line portions formed substantially in parallel. An anterior abdomen and a back part connected in a substantially annular shape;
A crotch portion provided continuously between the front abdomen and the back,
An absorber provided in the crotch part,
The front abdomen is a part where the crotch part is continuous, and has a cutting line part for breaking the middle front part of the substantially central part and the left and right front part thereof, and the cutting line part includes a plurality of weakening lines. Pants with parts formed approximately parallel. The pants according to claim 1 or claim 2,
Pants with marks on or near the cutting line. The pants according to claim 3,
The pants, wherein the mark includes an indicia colored on the weakened line portion with a color different from a ground color. The pants according to claim 3 or claim 4,
The mark includes a pant including an indicia displaying at least one of a character, a figure, and a symbol in the vicinity of the cutting line portion. The pants according to any one of claims 1 to 5,
Pants in which a knob portion is formed at one end of the band-like region between the weakened line portions. The pants according to any one of claims 1 to 6,
The underpants in which an incision is formed at one end of each weakening line portion.

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