TWI513457B - Shorts wearing items - Google Patents

Shorts wearing items Download PDF

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Publication number
TWI513457B
TWI513457B TW104100545A TW104100545A TWI513457B TW I513457 B TWI513457 B TW I513457B TW 104100545 A TW104100545 A TW 104100545A TW 104100545 A TW104100545 A TW 104100545A TW I513457 B TWI513457 B TW I513457B
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Taiwan
Prior art keywords
region
waist
elastic
longitudinal direction
lateral direction
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TW104100545A
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Chinese (zh)
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TW201531286A (en
Inventor
Takeshi Shimazu
Makoto Ichikawa
Yusuke Kawakami
Yui Kondo
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Uni Charm Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Description

短褲型穿著用物品Shorts type wearing articles

本發明係關於短褲型穿著用物品。The present invention relates to a pants-type wearing article.

以往以來，具備主體且具有腰圍開口與一對腳開口的短褲型穿著用物品為習知，該主體具有前腰圍區域、後腰圍區域及位於前後腰圍區域之間的褲襠區域，並包含從褲襠區域朝前後腰圍區域延伸之吸液性芯材。例如，在專利文獻1，揭示有一種穿著用物品，其具備包含前後腰圍區域及褲襠區域和吸液性芯材之主體，在前後腰圍區域，朝橫向延伸之複數條弦狀或繩股狀的腰圍彈性體在可伸長地收縮的狀態下被配置。Conventionally, a pants-type wearing article having a main body and having a waist opening and a pair of leg openings is known. The main body has a front waist region, a rear waist region, and a crotch region between the front and rear waist regions, and includes a crotch region. An absorbent core material extending toward the front and rear waist regions. For example, Patent Document 1 discloses a wearing article including a main body including a front and rear waist region, a crotch region, and a liquid-absorbent core member, and a plurality of strings or strands extending in the lateral direction in the front and rear waist regions. The waist elastic body is disposed in an extensiblely contracted state.

在此穿著用物品，吸液性芯材的縱方向(長度方向)外側的區域，具有在縱方向上位於前腰圍區域的腰圍開口緣部與吸液性芯材之間的彈性區域(以下稱為第1區域)；和在前後方向上與該第1區域相對向，在縱方向上位於後腰圍區域的腰圍開口緣部與吸液性芯材之間的彈性區域(以下稱為第2區域)。在第1區域上相鄰接的腰圍彈性體之分離尺寸(間距)與在第2區域上相鄰接的 腰圍彈性體之分離尺寸設定為相等。藉此，第1區域與第2區域之在縱方向上的彎曲剛性大致成為相等。In the wearing article, the region outside the longitudinal direction (longitudinal direction) of the liquid-absorbent core member has an elastic region between the waist opening edge portion and the liquid-absorbent core member located in the front waist region in the longitudinal direction (hereinafter referred to as a first region); and an elastic region between the waist opening edge portion and the liquid-absorbent core member in the rear waist region in the longitudinal direction facing the first region (hereinafter referred to as a second region) ). The separation size (pitch) of the adjacent waist elastics on the first region is adjacent to the second region The separation dimensions of the waist elastics are set to be equal. Thereby, the bending rigidity in the longitudinal direction of the first region and the second region is substantially equal.

[先行技術文獻][Advanced technical literature] [專利文獻][Patent Literature]

[專利文獻1]國際公開WO2004/054482號公報[Patent Document 1] International Publication WO2004/054482

在專利文獻1所揭示的穿著用物品，藉由將第1區域之縱方向的彎曲剛性設定成較低，使得在穿用時，當將腰圍開口的緣部擴大時，在第1區域上主體被折彎容易使手指鉤掛，讓穿用操作變得簡單。In the wearing article disclosed in Patent Document 1, the bending rigidity in the longitudinal direction of the first region is set to be low, so that when the edge portion of the waist opening is enlarged during wearing, the main body is on the first region. Being bent is easy to hook your fingers, making it easy to wear.

另外，在後腰圍區域，由於第2區域具有與第1區域大致相同之較低的彎曲剛性，故，該區域被折彎而造成腰圍開口的緣部抵接於穿用者的大腿部與臀部的階差，變得不易拉起，在該狀態強硬地拉起之情況，會有第2區域中，主體的一部分產生皺紋之問題。Further, in the rear waist region, since the second region has substantially the same low bending rigidity as the first region, the region is bent so that the edge portion of the waist opening abuts against the wearer's thigh and The step of the buttocks becomes difficult to pull up, and in this state, when it is pulled up strongly, there is a problem that wrinkles are generated in a part of the main body in the second region.

因此，本發明的目的係在於提供以往技術的改良，容易進行穿用操作，並且能夠圓滑地進行後腰圍區域的拉起，在後腰圍區域的一部分不會有產生皺紋之虞的短褲型穿著用物品。In view of the above, it is an object of the present invention to provide a pants-type wear that is easy to perform a wearing operation and that can smoothly pull up the back waist region and that does not cause wrinkles in a part of the back waist region. article.

為了達成前述課題之本發明，係短褲型穿著用物品的改良，其具有縱方向及橫方向、肌膚對向面及位於其相反側的非肌膚對向面、前腰圍區域、後腰圍區域、以及位於前述前後腰圍區域之褲襠區域，並包含主體和將前述前後腰圍區域的兩側緣部予以連結而區劃成之腰圍開口及一對腳開口，該主體含有從前述褲襠區域朝前述前後腰圍區域延伸之吸液性芯材。In order to achieve the above-described problem, the present invention is an improvement of a shorts-type wearing article having a longitudinal direction and a lateral direction, a skin facing surface, a non-skin opposing surface on the opposite side, a front waist region, a back waist region, and a crotch region located in the front and rear waist regions, and comprising a main body and a waist opening and a pair of leg openings which are formed by joining the two side edges of the front and rear waist regions, the main body extending from the crotch region toward the front and rear waist regions The liquid absorbent core material.

本發明之第1發明係對前述穿著用物品，其特徵為：前述吸液性芯材係具有在前述縱方向上分離相對向並朝前述橫方向延伸之前端緣與後端緣，前述前腰圍區域係在前述腰圍開口側朝前述橫方向延伸之前外側彈性區域；在前述褲襠區域側朝前述橫方向延伸之前內側彈性區域；及前述吸液性芯材的前述縱方向外側中，位於前述前外側彈性區域與前述前內側彈性區域之間的第1區域，在前述前外側彈性區域、前述前內側彈性區域及前述第1區域，配置有在前述前腰圍區域的兩側緣部間以伸長狀態朝前述橫方向可收縮地安裝的複數條前腰圍彈性體，前述後腰圍區域係在前述腰圍開口側朝前述橫方向延伸之後外側彈性區域；在前述褲襠區域側朝前述橫方向延伸之後內側彈性區域；及前述吸液性芯材的前述縱方向外側中，位於前述後外側彈性區域與前述後內側彈性區域之 間的第2區域，在前述前外側彈性區域、前述前內側彈性區域及前述第2區域，配置有在前述後腰圍區域的兩側緣部間以伸長狀態朝前述橫方向可收縮地安裝的複數條後腰圍彈性體，前述第1區域與前述第2區域係在穿用狀態的前後方向上處於相對向的位置，前述第2區域之前述後腰圍彈性體的數量係較前述第1區域之前述前腰圍彈性體的數量多，在前述第2區域上相互地鄰接的前述後腰圍彈性體的前述縱方向之分離尺寸係較在前述第1區域相互地鄰接的前述前腰圍彈性體的前述縱方向之分離尺寸小，在前述第2區域的一部分，配置有薄片狀或帶狀的剛性賦予構件。According to a first aspect of the invention, the liquid-absorbent core material has an end edge and a rear end edge which are separated from each other in the longitudinal direction and extend in the lateral direction, and the front waistline The outer elastic region before the lateral opening side of the waist opening side; the inner elastic region before the lateral direction of the crotch region side; and the longitudinal outer side of the liquid-absorbent core member located at the front outer side a first region between the elastic region and the front inner elastic region, wherein the front outer elastic region, the front inner elastic region, and the first region are disposed in an extended state between both side edges of the front waist region a plurality of front waist elastic bodies that are retractably mounted in the lateral direction, wherein the rear waist region is an outer elastic region extending in the lateral direction on the waist opening side; and an inner elastic region extending in the lateral direction on the crotch region side; And the longitudinal outer side of the liquid-absorbent core material, located in the rear outer elastic region and the rear inner elastic Area In the second region, the front outer elastic region, the front inner elastic region, and the second region are disposed to be plurally retractably attached to the lateral direction in an extended state between both side edges of the rear waist region. In the back waist elastic body, the first region and the second region are opposed to each other in the longitudinal direction of the wearing state, and the number of the back waist elastic bodies in the second region is higher than the aforementioned first region The number of front waist elastic members is large, and the longitudinal dimension of the rear waist elastic body adjacent to each other in the second region is smaller than the longitudinal direction of the front waist elastic body adjacent to each other in the first region. The separation size is small, and a sheet-like or strip-shaped rigidity providing member is disposed in a part of the second region.

又，本發明之第2發明係對前述穿著用物品，其特徵為：前述吸液性芯材係具有在前述縱方向上分離相對向並朝前述橫方向延伸之前端緣與後端緣，前述前腰圍區域係具有位於前述腰圍開口的緣部與前述吸液性芯材的前述前端緣之間，並橫跨及前述前腰圍區域的兩側緣部間之全區域的第1區域，前述後腰圍區域係具有位於前述腰圍開口的緣部與前述吸液性芯材的前述後端緣之間，並橫跨及前述後腰圍區域的兩側緣部間之全區域的第2區域，前述第1區域與前述第2區域係在穿用狀態的前後方 向上處於相對向的位置，前述第2區域的前述縱方向之彎曲剛性係較前述第1區域的前述縱方向之彎曲剛性高，在前述第2區域的一部分，配置有薄片狀或帶狀的剛性賦予構件。According to a second aspect of the invention, the liquid-absorbent core material has an end edge and a rear end edge which are separated from each other in the longitudinal direction and extend in the lateral direction. The front waistline region has a first region between the edge portion of the waist opening and the front end edge of the liquid-absorbent core member, and spans the entire region between the both side edges of the front waistline region, and the rear region The waist region has a second region between the edge portion of the waist opening and the rear end edge of the liquid-absorbent core member and spanning the entire region between the both side edges of the back waist region, the first portion The 1 area and the aforementioned second area are in the front and rear of the wearing state. The bending rigidity in the longitudinal direction of the second region is higher than the bending rigidity in the longitudinal direction of the first region, and the sheet-like or strip-shaped rigidity is disposed in a part of the second region. Give the component.

若依據本發明的第1發明之短褲型穿著用物品的一個以上的實施形態，前腰圍區域係具有配置有前腰圍彈性體且位於腰圍開口的緣部與吸液性芯材的前端緣之間的第1區域，後腰圍區域係具有在穿用狀態的前後方向上配置於與第1區域相對向的位置，並配置有後腰圍彈性體且位於腰圍開口的緣部與吸液性芯材的後端緣之間的第2區域，第2區域之後腰圍彈性體的數量係較第1區域之前腰圍彈性體的數量多，在第2區域相互地鄰接的後腰圍彈性體的縱向的分離尺寸係較在第1區域上相互地鄰接的前腰圍彈性體的縱方向的分離尺寸小。因此，在第1區域，比起第2區域，縱方向的彎曲剛性變低，當將腰圍開口的緣部擴大時，容易使手指鉤掛於主體，容易進行穿用操作。另外，在第2區域，由於比起第1區域，縱方向的彎曲剛性變高，主體變得不易折彎，故，可防止在主體的一部分產生皺紋，能夠圓滑地進行後腰圍區域的拉起。According to one or more embodiments of the pants-type wearing article according to the first aspect of the present invention, the front waistline region has a front waist elastic body disposed between the edge portion of the waist opening and the front end edge of the liquid-absorbent core member. In the first region, the rear waist region is disposed at a position facing the first region in the front-rear direction of the wearing state, and is disposed at the edge of the waist opening and the edge of the waist opening and the liquid-absorbent core member. In the second region between the rear end edges, the number of the waist elastics after the second region is larger than the number of the waist elastics before the first region, and the longitudinal separation of the rear waist elastics adjacent to each other in the second region is The separation dimension of the front waist elastic body adjacent to each other in the first region in the longitudinal direction is small. Therefore, in the first region, the bending rigidity in the longitudinal direction is lower than in the second region, and when the edge portion of the waist opening is enlarged, it is easy to hook the finger to the main body, and the wearing operation is easy. Further, in the second region, since the bending rigidity in the longitudinal direction is higher than that in the first region, the main body is less likely to be bent, so that wrinkles can be prevented from occurring in a part of the main body, and the rear waist region can be pulled up smoothly. .

若依據本發明的第2發明之短褲型穿著用物品的一個以上的實施形態，位於後腰圍區域之第2區域的 縱方向之縱方向係較位於前腰圍區域的第1區域的縱方向之彎曲剛性高。因此，當將腰圍開口的緣部擴大時，容易使手指鉤掛於第1區域的主體，容易進行穿用操作，在第2區域，主體變得不易折彎，可防止在主體的一部分產生皺紋，能夠圓滑地進行後腰圍區域的拉起。According to one or more embodiments of the pants-type wearing article according to the second aspect of the present invention, the second region of the rear waist region is located. The longitudinal direction in the longitudinal direction is higher than the bending rigidity in the longitudinal direction of the first region located in the front waistline region. Therefore, when the edge portion of the waist opening is enlarged, the finger is easily caught by the main body of the first region, and the wearing operation is facilitated. In the second region, the main body is less likely to be bent, and wrinkles can be prevented from occurring in a part of the main body. It is possible to smoothly pull up the back waist area.

10‧‧‧紙尿布(短褲型穿著用物品)10‧‧‧Pick diapers (short-type wearing items)

11‧‧‧前腰圍區域11‧‧‧ Front Waist Area

12‧‧‧後腰圍區域12‧‧‧After Waist Area

13‧‧‧褲襠區域13‧‧‧Pants area

14‧‧‧主體14‧‧‧ Subject

15‧‧‧吸液構造體15‧‧‧Aspirating structure

51‧‧‧吸收體51‧‧‧Acceptor

58a‧‧‧吸液性芯材的前端緣58a‧‧‧ front edge of liquid-absorbent core

58b‧‧‧吸液性芯材的後端緣58b‧‧‧The rear edge of the liquid-absorbent core

60‧‧‧接合區域60‧‧‧ joint area

65‧‧‧剛性賦予構件65‧‧‧Rigid-giving components

71‧‧‧前腰圍彈性區域71‧‧‧ Front waist elastic zone

71A‧‧‧前外側彈性區域71A‧‧‧ anterior lateral elastic zone

71B‧‧‧前中間彈性區域(第1區域)71B‧‧‧Pre-intermediate elastic zone (1st zone)

71C‧‧‧前內側彈性區域71C‧‧‧front medial elastic zone

72‧‧‧前腰圍彈性體72‧‧‧ Front waist elastics

73‧‧‧後腰圍彈性區域73‧‧‧After waist elastic zone

73A‧‧‧後外側彈性區域73A‧‧‧ rear outer elastic region

73B‧‧‧後中間彈性區域(第2區域)73B‧‧‧After intermediate elastic zone (2nd zone)

73C‧‧‧後內側彈性區域73C‧‧‧ rear medial elastic region

74‧‧‧後腰圍彈性體74‧‧‧After waist elastic

76‧‧‧臀部彈性體76‧‧‧Hip elastomer

X‧‧‧橫方向X‧‧‧ horizontal direction

Y‧‧‧縱方向Y‧‧‧ longitudinal direction

Z‧‧‧前後方向Z‧‧‧ direction

S1、S2‧‧‧假想線S1, S2‧‧‧ imaginary line

圖面係顯示本揭示之本發明的特定的實施形態，不僅包含發明不可缺之結構，亦包含可選擇性及理想的實施形態。The drawings show specific embodiments of the invention disclosed herein, including not only indispensable structures, but also alternative and desirable embodiments.

圖1係作為本揭示之短褲型穿著用物品的一例加以顯示的第1實施形態之用後即棄式紙尿布的斜視圖。Fig. 1 is a perspective view of the disposable diaper after the first embodiment shown as an example of the pants-type wearing article of the present invention.

圖2係朝縱方向及橫方向伸展成各彈性體的最大伸長時(藉由彈性體的收縮作用之皺褶消失的程度)為止之紙尿布的部分截斷展開平面圖。Fig. 2 is a partially cutaway development plan view of the disposable diaper which is extended in the longitudinal direction and the transverse direction to the maximum elongation of each elastic body (the extent to which the wrinkles of the elastic body shrinks).

圖3係紙尿布的部分截斷分解斜視圖。Figure 3 is a partially cutaway exploded perspective view of the paper diaper.

圖4係沿著圖1的IV-IV線的示意斷面圖。Fig. 4 is a schematic cross-sectional view taken along line IV-IV of Fig. 1.

圖5係前腰圍區域的平面圖。Figure 5 is a plan view of the front waist region.

圖6係後腰圍區域的平面圖。Figure 6 is a plan view of the rear waist region.

圖7(a)係顯示穿用以往的紙尿布時的狀態，從背面側觀看的斜視圖。(b)係沿著VIIb-VIIb線的示意斷面圖。Fig. 7 (a) is a perspective view showing a state in which a conventional disposable diaper is worn and viewed from the back side. (b) is a schematic cross-sectional view taken along line VIIb-VIIb.

圖8(a)係顯示穿用圖1所示的紙尿布之時的狀態，從背面側觀看的斜視圖。(b)係沿著VIIIb-VIIIb線 的示意斷面圖。Fig. 8 (a) is a perspective view showing a state in which the disposable diaper shown in Fig. 1 is worn, as viewed from the back side. (b) along the line VIIIb-VIIIb Schematic cross section.

圖9係從背面側觀看後腰圍區域的平面圖，且顯示試驗片的採取部位之說明圖。Fig. 9 is a plan view showing the rear waistline region viewed from the back side, and showing an explanatory view of a taken portion of the test piece.

圖10係顯示紙尿布的變形例，從背面側觀看後腰圍區域之平面圖。Fig. 10 is a plan view showing a modified example of a disposable diaper, viewed from the back side.

圖11係沿著圖10的XI-XI線的示意斷面圖。Figure 11 is a schematic cross-sectional view taken along line XI-XI of Figure 10 .

圖12係第2實施形態之紙尿布的與圖2相同的平面圖。Fig. 12 is a plan view similar to Fig. 2 of the disposable diaper according to the second embodiment.

圖13係第2實施形態之紙尿布的與圖3相同的分解斜視圖。Fig. 13 is an exploded perspective view similar to Fig. 3 of the disposable diaper according to the second embodiment.

<第1實施形態><First embodiment>

以下的實施形態係關於作為本發明的一例之如圖1至圖4所示的短褲型穿著用物品，不僅含有發明不可欠缺之結構，亦包含可選擇性及理想之結構。在圖2中，後述的各彈性體係處於克服其收縮力，伸長至藉由朝橫方向X及縱方向Y之收縮力使得在安裝有各彈性體的構件之皺褶依據自然視覺看起來實質上消失的程度之狀態。In the following embodiments, the pants-type wearing article shown in Figs. 1 to 4 as an example of the present invention includes not only a structure indispensable to the invention but also a structure which is optional and desirable. In Fig. 2, each of the elastic systems described later is in a state of overcoming its contraction force, and is elongated to a contraction force in the lateral direction X and the longitudinal direction Y so that the wrinkles of the members to which the respective elastic bodies are mounted are substantially in accordance with natural vision. The state of the degree of disappearance.

如圖1至圖3所示，本發明之短褲型穿著用物品的一例之用後即棄式短褲型紙尿布10係具有相互地正交之縱方向Y及橫方向X、肌膚對向面及其相反側的非肌膚對向面、將橫方向X的長度尺寸平分之縱軸P、及將 縱方向Y的長度尺寸平分之橫軸Q，對縱軸P大致呈對稱，並具有前腰圍區域11、後腰圍區域12、及位於前腰圍區域11與後腰圍區域12之間的褲襠區域13。As shown in FIG. 1 to FIG. 3, the disposable pants type diaper 10 of the example of the pants-type wearing article of the present invention has a longitudinal direction Y and a transverse direction X which are orthogonal to each other, and a skin facing surface thereof. The non-skin opposite surface on the opposite side, the vertical axis P that divides the length dimension of the lateral direction X, and The horizontal axis Q, which is divided by the length dimension of the longitudinal direction Y, is substantially symmetrical with respect to the longitudinal axis P, and has a front waistline region 11, a rear waistline region 12, and a crotch region 13 between the front waistline region 11 and the rear waistline region 12.

紙尿布10係包含成為基礎形態之主體14，主體14中，用來劃定褲襠區域13之兩側緣部具有凹曲狀，褲襠區域13的最寬度窄之部分是比起橫軸Q位於更靠近前腰圍區域11側。前腰圍區域11的前側緣部11a、11b與後腰圍區域12的後側緣部12a、12b係利用以在紙尿布10的前後方向Z上相互對向的側緣部朝縱方向Y斷續地延伸的側接縫22連結，劃定腰圍開口23及一對腳開口24。在側接縫22，藉由例如利用熱或超音波之壓花-壓凹加工等的習知手段，將相互地重疊之薄片彼此予以熔接。The disposable diaper 10 includes a main body 14 which is a basic form in which the side edges of the crotch region 13 are defined to have a concave curved shape, and the narrowest portion of the crotch region 13 is located more than the horizontal axis Q. Close to the front waistline area 11 side. The front side edge portions 11a and 11b of the front waistline region 11 and the rear side edge portions 12a and 12b of the rear waistline region 12 are intermittently used in the longitudinal direction Y by the side edge portions facing each other in the front-rear direction Z of the disposable diaper 10. The extended side seams 22 are joined to define a waist opening 23 and a pair of foot openings 24. In the side seams 22, the mutually overlapping sheets are welded to each other by a conventional means such as embossing-embossing by heat or ultrasonic waves.

主體14包含：位於肌膚對向面，將前後腰圍區域11、12及褲襠區域13一連串地劃定之纖維不織布製的基礎薄片25；位於非肌膚對向面側，在縱方向Y上相互地分離相對向之纖維不織布製的前腰圍薄片26及後腰圍薄片27；及位於基礎薄片25的肌膚對向面側，從褲襠區域13朝前後腰圍區域11、12延伸之吸液構造體15。The main body 14 includes a base sheet 25 which is disposed on the opposite side of the skin and which defines the fibers of the front and rear waist regions 11 and 12 and the crotch region 13 in a series; the non-skin facing side is separated from each other in the longitudinal direction Y. The front waistline sheet 26 and the back waistline sheet 27 which are not woven with respect to the fibers, and the liquid absorbing structure body 15 which is located on the skin facing surface side of the base sheet 25 and extends from the crotch region 13 toward the front and rear waist regions 11 and 12.

<基礎薄片><Basic sheet>

基礎薄片25具有：在縱方向Y上分離相對向的第1及第2端緣25a、25b；及在橫方向X上分離相對向的兩側緣25c、25d。兩側緣25c、25d係由前後腰圍區域11、12之直線狀部位、和在褲襠區域13，朝縱軸P從後腰圍 區域12側向前腰圍區域11側深深地凸狀彎曲之彎曲狀部位所形成。The base sheet 25 has first and second end edges 25a and 25b that are opposed to each other in the longitudinal direction Y, and two opposite side edges 25c and 25d that are separated in the lateral direction X. The side edges 25c, 25d are linear portions from the front and rear waist regions 11, 12, and in the crotch region 13, from the rear waistline toward the longitudinal axis P The region 12 side is formed by a curved portion that is convexly curved in the forward waist region 11 side.

<前腰圍薄片><front waist sheet>

前腰圍薄片26係形成前腰圍區域11與褲襠區域13的一部分之略梯形狀，由朝橫方向X延伸之中間內端緣26a及外端緣26b、和朝縱方向Y延伸的兩外側緣26c、26d、以及將兩外側緣26c、26d與中間內端緣26a連結的兩側內端緣26e、26f所形成。兩側內端緣26e、26f係具有：從外側緣26c、26d朝橫方向X呈直線狀地延伸的直線狀部位；及從該直線狀部位朝中間內端緣26a延伸之彎曲狀部位。前腰圍薄片26係具有沿著腰圍開口緣朝內側折彎之折彎部33。折彎部33係在吸液構造體15被配置於基礎薄片25的內面之狀態下，沿著基礎薄片25的第1端緣25a朝內側折彎，固定於基礎薄片25及吸液構造體15的肌膚對向面。The front waistline sheet 26 forms a trapezoidal shape of a portion of the front waistline region 11 and the crotch region 13, and has an intermediate inner edge 26a and an outer edge 26b extending in the lateral direction X, and two outer edges 26c extending in the longitudinal direction Y. And 26d, and two side inner edges 26e, 26f connecting the outer side edges 26c, 26d and the intermediate inner edge 26a. The inner end edges 26e and 26f on both sides have a linear portion extending linearly from the outer edges 26c and 26d in the lateral direction X, and a curved portion extending from the linear portion toward the intermediate inner edge 26a. The front waistline sheet 26 has a bent portion 33 that is bent inward along the waist opening edge. The bent portion 33 is bent inward along the first end edge 25a of the base sheet 25 while the liquid-absorbent structure 15 is placed on the inner surface of the base sheet 25, and is fixed to the base sheet 25 and the liquid-absorbent structure. 15 skin opposites.

<後腰圍薄片><Back waist sheet>

後腰圍薄片27係形成後腰圍區域12與褲襠區域13的一部分之略梯形狀，由朝橫方向X延伸之中間內端緣27a及外端緣27b、和從外端緣27b朝縱方向Y延伸的兩外側緣27c、27d、以及將兩外側緣27c、27d與中間內端緣27a以彎曲狀連結的兩側內端緣27e、27f所形成。後腰圍薄片27係具有沿著腰圍開口緣朝內側折彎之折彎部 38。折彎部38係在吸液構造體15被配置於基礎薄片25的內面之狀態下，沿著基礎薄片25的第2端緣25b朝內側折彎，固定於基礎薄片25及吸液構造體15的肌膚對向面。The rear waistline sheet 27 forms a trapezoidal shape of a portion of the rear waistline region 12 and the crotch region 13, extending from the intermediate inner end edge 27a and the outer end edge 27b extending in the lateral direction X, and extending from the outer end edge 27b toward the longitudinal direction Y. The two outer side edges 27c, 27d and the inner side edges 27e, 27f which connect the outer side edges 27c, 27d and the intermediate inner end edge 27a in a curved shape are formed. The back waist panel 27 has a bent portion that is bent inward along the waist opening edge 38. The bent portion 38 is bent inward along the second end edge 25b of the base sheet 25 while the liquid-absorbent structure 15 is placed on the inner surface of the base sheet 25, and is fixed to the base sheet 25 and the liquid-absorbent structure. 15 skin opposites.

如圖2至圖4所示，在前腰圍薄片26與基礎薄片25之間，前腰圍彈性體72在伸長狀態下可收縮地安裝著，該前腰圍彈性體72在前腰圍區域11朝橫方向X延伸。在後腰圍薄片27與基礎薄片25之間，後腰圍彈性體74與從後腰圍區域12朝褲襠區域13呈彎曲狀地延伸之臀部彈性體76在伸長狀態下可收縮地安裝著，該後腰圍彈性體74在後腰圍區域12朝橫方向X延伸。前後腰圍區域11、12係藉由配置各彈性體，具有後述可彈性地伸縮之前後腰圍彈性區域71、73。As shown in FIGS. 2 to 4, between the front waistline sheet 26 and the base sheet 25, the front waist elastic body 72 is retractably attached in an extended state, and the front waist elastic body 72 is oriented in the front waist region 11 in the lateral direction. X extension. Between the back waistline sheet 27 and the base sheet 25, the back waist elastic body 74 and the buttocks elastic body 76 extending in a curved shape from the back waistline region 12 toward the crotch region 13 are retractably attached in an extended state, the back waist circumference The elastic body 74 extends in the lateral waist region 12 in the lateral direction X. The front and rear waist regions 11 and 12 are elastically stretched and contracted before and after the waist elastic regions 71 and 73 by arranging the respective elastic bodies.

作為基礎薄片25及前後腰圍薄26、27，可使用質量約為10~40g/m2 、纖維密度約為0.03~0.10g/cm3 之例如紡黏纖維不織布、SMS(紡黏-熔噴-紡黏)纖維不織布、熱風纖維不織布、塑膠薄片、或這些不織布的層積薄片等。在本實施形態，作為基礎薄片25，能夠使用質量約為10~18g/m2 、理想質量約為13g/m2 之SMS纖維不織布，作為前後腰圍薄26、27，能夠使用質量約為15~25g/m2 、理想質量約為20g/m2 之紡黏纖維不織布。在本實施形態，在前後腰圍薄26、27的外面，選擇性地實施有格子狀壓花-壓凹加工，配置凹凸花紋28。又，在本實施形態，褲襠區域13的中央部13C僅由基礎薄片25所形 成，但亦可由複數個薄片所形成。As the base sheet 25 and the front and rear waist thins 26 and 27, for example, a spunbonded fiber non-woven fabric, SMS (spunbond-meltblown-mass) having a mass of about 10 to 40 g/m 2 and a fiber density of about 0.03 to 0.10 g/cm 3 can be used. Spunbonded fiber non-woven fabric, hot air fiber non-woven fabric, plastic sheet, or laminated sheets of these non-woven fabrics. In the present embodiment, as the base sheet 25, an SMS fiber nonwoven fabric having a mass of about 10 to 18 g/m 2 and a desired mass of about 13 g/m 2 can be used, and the front and rear waist thins 26 and 27 can be used. A spunbond non-woven fabric of 25 g/m 2 and an ideal mass of about 20 g/m 2 . In the present embodiment, lattice-shaped embossing-embossing is selectively performed on the outer surfaces of the front and rear waistline sheets 26 and 27, and the uneven pattern 28 is disposed. Further, in the present embodiment, the center portion 13C of the crotch region 13 is formed only of the base sheet 25, but may be formed of a plurality of sheets.

關於紙尿布10的各尺寸(與主體14所對應之尺寸相同)，紙尿布10之縱方向Y之尺寸L1約為600~1000mm、橫方向X之尺寸W1約為400~800mm、前腰圍區域11的前側緣部11a、11b之縱方向Y的尺寸L2(與後腰圍區域12的後側緣部12a、12b之縱方向Y的尺寸相同)約為80~150mm。Regarding the respective dimensions of the disposable diaper 10 (the same size as the main body 14), the dimension L1 of the longitudinal direction Y of the disposable diaper 10 is about 600 to 1000 mm, the dimension W1 of the lateral direction X is about 400 to 800 mm, and the front waistline region 11 is 11 The dimension L2 of the longitudinal direction Y of the front side edge portions 11a and 11b (the same dimension as the longitudinal direction Y of the rear side edge portions 12a and 12b of the rear waistline region 12) is about 80 to 150 mm.

<吸液構造體><liquid-absorbent structure>

如圖2及圖3所示，吸液構造體15係具有：在縱方向Y上分離相對向並朝橫方向X延伸之前端緣15a及後端緣15b、和在橫方向X上分離相對向並朝縱方向Y延伸之兩側緣15c，並具備前端部16A、後端部16B、及位於前後端部16A、16B之間的中央部16C。吸液構造體15包含有：位於肌膚對向面側，具有透液性之纖維不織布製的身體側襯墊50；具有彎曲狀的兩側緣之吸液性吸收體51；一對阻擋側邊薄片52；及防漏薄片53。吸收體51包含：由例如絨毛漿與吸收性聚合物粒子等的混合物所構成之吸液性芯材；及包覆吸液性芯材全體之薄紙等的液體吸收擴散性芯材繞包薄片。吸液性芯材具有：在前腰圍區域11上朝橫方向X延伸之前端緣58a；與前端緣58a在縱方向Y上分離相對向，並在後腰圍區域朝橫方向X延伸之後端緣58b。身體側襯墊50與阻擋側邊薄片52及防漏薄片53係形成有分別從吸液性芯材的前端緣部58a及後端 緣58b朝縱方向Y延伸伸出之端翼片56a、56b。吸液構造體15與基礎薄片25係經由以塗佈於該等構件的對向面之至少一方的熱熔膠接著劑等的習知接合手段所形成之接合區域60相互地接合。在本實施形態，接合區域60係由在縱方向Y上分離的複數個接合部位所構成，但，亦可為連續成接合吸液構造體15的背面全體之接合區域。As shown in FIG. 2 and FIG. 3, the liquid-absorbent structure 15 has a front edge 15a and a rear end edge 15b which are separated in the longitudinal direction Y and extend in the lateral direction X, and are separated in the lateral direction X. The side edges 15c extending in the longitudinal direction Y include a front end portion 16A, a rear end portion 16B, and a center portion 16C between the front and rear end portions 16A and 16B. The liquid-absorbent structure 15 includes a body side liner 50 made of a liquid-permeable non-woven fabric on the opposite side of the skin, and a liquid-absorbent absorber 51 having curved side edges; a pair of barrier sides Sheet 52; and leakage preventing sheet 53. The absorber 51 includes a liquid-absorbent core material composed of, for example, a mixture of fluff pulp and absorbent polymer particles, and a liquid-absorbent diffusing core-wrap sheet such as a tissue coated with the entire liquid-absorbent core material. The liquid-absorbent core material has a front edge 58a extending in the front waistline region 11 in the lateral direction X, and a front edge 58b extending away from the front end edge 58a in the longitudinal direction Y and extending in the lateral waist region X. . The body side liner 50, the barrier side sheet 52, and the leakage preventing sheet 53 are formed from the front end edge portion 58a and the rear end of the liquid absorbing core member, respectively. The rim 58b extends in the longitudinal direction Y to extend the end flaps 56a, 56b. The liquid-absorbent structure 15 and the base sheet 25 are joined to each other via a joint region 60 formed by a conventional joining means such as a hot-melt adhesive applied to at least one of the opposing faces of the members. In the present embodiment, the joint region 60 is composed of a plurality of joint portions separated in the longitudinal direction Y, but may be a joint region continuously joined to the entire back surface of the liquid-absorbent structure 15.

如圖2所示，一對阻擋側邊薄片52係折疊成2個而將內面相互地固定之構件，具有：固定在身體側襯墊50的肌膚對向面，並在縱方向Y上分離相對向的前固定部及後固定部；朝縱方向Y延伸的固定側緣部52b；及從固定側緣部52b起，位於橫方向X的內側之自由側緣部52a。在阻擋側邊薄片52的自由側緣部52a內，側邊彈性體57在伸長狀態下可收縮地安裝著，該側邊彈性體57是由弦狀或繩股狀的彈性材料所構成並朝縱方向Y延伸。藉由側邊彈性體57收縮，自由側緣部52a從身體側襯墊50朝穿用者的身體側分離，形成用來防止體液橫漏的一對防漏側邊。防漏薄片53係由不透液性的纖維不織布、不透液性但透濕性的塑膠薄膜或該等的層積薄片所形成，配置成至少覆蓋吸收體51的下面之大致全體範圍，防止體液自吸液構造體15的非肌膚對向面(底面)側漏出。As shown in Fig. 2, a pair of barrier side sheets 52 are folded into two members, and the inner surfaces are fixed to each other, and are fixed to the skin facing surface of the body side pad 50, and are separated in the longitudinal direction Y. a front side fixing portion and a rear fixing portion facing each other; a fixed side edge portion 52b extending in the longitudinal direction Y; and a free side edge portion 52a located on the inner side in the lateral direction X from the fixed side edge portion 52b. In the free side edge portion 52a of the blocking side sheet 52, the side elastic body 57 is retractably mounted in an extended state, and the side elastic body 57 is composed of a string-like or strand-shaped elastic material and Extending in the longitudinal direction Y. By the contraction of the side elastic body 57, the free side edge portion 52a is separated from the body side pad 50 toward the body side of the wearer to form a pair of leakage preventing sides for preventing leakage of body fluid. The leakage preventing sheet 53 is formed of a liquid-impermeable fibrous nonwoven fabric, a liquid-impermeable, moisture-permeable plastic film, or a laminated sheet thereof, and is disposed so as to cover at least a substantially entire range of the lower surface of the absorbent body 51 to prevent The body fluid leaks from the non-skin opposing surface (bottom surface) side of the liquid absorbing structure 15 .

<前後腰圍彈性區域><front and rear waist elastic area>

圖4係圖1的IV-IV線斷面圖，圖5及圖6分別係顯示在圖2所示的前後腰圍區域11、12，除去吸液構造體 15之狀態的平面圖。前腰圍彈性區域71具有：在腰圍開口23的緣部朝橫方向X延伸之前外側彈性區域71A；在褲襠區域13側朝橫方向X延伸之前內側彈性區域71C；及位於吸液性芯材的縱方向Y外側中前外側彈性區域71A與前內側彈性區域71C之間的前中間彈性區域(第1區域)71B。後腰圍彈性區域73具有：在腰圍開口23的緣部朝橫方向X延伸之後外側彈性區域73A；位於吸液性芯材的縱方向Y外側，在褲襠區域13側朝橫方向X延伸之後內側彈性區域73C；及位於後外側彈性區域73A與後內側彈性區域73C之間的後中間彈性區域(第2區域)73B。在圖4中，如與前後方向Z平行的假想線S1、S2所示，前外側彈性區域71A與後外側彈性區域73A、及前中間彈性區域71B與後中間彈性區域73B分別在穿用狀態之前後方向Z，位於相互對向的位置。其中，在可達到後述的本發明的效果之情況下，至少前中間彈性區域71B與後中間彈性區域73B在前後方向Z位於相互對向的位置。Figure 4 is a sectional view taken along line IV-IV of Figure 1, and Figures 5 and 6 are respectively shown in the front and rear waist regions 11, 12 shown in Figure 2, and the liquid-absorbent structure is removed. A plan view of the state of 15. The front waist elastic region 71 has an outer elastic region 71A extending toward the lateral direction X at the edge portion of the waist opening 23, a front elastic region 71C extending toward the lateral direction X on the crotch region 13 side, and a longitudinal direction of the liquid-absorbent core member. A front intermediate elastic region (first region) 71B between the outer middle front outer elastic region 71A and the front inner elastic region 71C in the direction Y. The rear waist elastic region 73 has an outer elastic region 73A extending in the lateral direction X at the edge portion of the waist opening 23, and is located outside the longitudinal direction Y of the liquid-absorbent core member, and extends in the lateral direction X on the crotch region 13 side. A region 73C; and a rear intermediate elastic region (second region) 73B between the rear outer elastic region 73A and the rear inner elastic region 73C. In FIG. 4, as shown by imaginary lines S1, S2 parallel to the front-rear direction Z, the front outer elastic region 71A and the rear outer elastic region 73A, and the front intermediate elastic region 71B and the rear intermediate elastic region 73B are respectively in a wearing state. The front-rear direction Z is located at a position opposite to each other. However, in the case where the effect of the present invention to be described later can be achieved, at least the front intermediate elastic region 71B and the rear intermediate elastic region 73B are located at positions facing each other in the front-rear direction Z.

在本發明，前後中間彈性區域71B、73B係在前後腰圍區域11、12的縱方向Y的尺寸約為140mm之情況，位於從腰圍開口23起至少分離約50mm之位置，至少具有約50mm的寬度尺寸(縱方向Y的尺寸)。由於前後中間彈性區域71B、73B與腰圍開口23至少分離約50mm，故，在在紙尿布10穿用時，在前腰圍區域11側，使手指易鉤掛於將前外側彈性區域71A以手捲入般地 抓住而被折彎的前中間彈性區域71B，又，當在後腰圍區域12將紙尿布10拉起時，在穿用者的臀部與大腿部之間的階差，不易將後中間彈性區域73B折彎，藉此可防止皺紋產生。又，為了達到後述的本發明之效果，前後中間彈性區域71B、73B係位於在前後腰圍區域11、12中縱方向Y之彎曲剛性變化的吸液構造體15之前後端緣部15a、15b附近為佳。In the present invention, the front and rear intermediate elastic regions 71B, 73B are located at a position where the longitudinal direction Y of the front and rear waist regions 11 and 12 is about 140 mm, and are located at least about 50 mm apart from the waist opening 23, and have a width of at least about 50 mm. Size (size in the longitudinal direction Y). Since the front and rear intermediate elastic regions 71B, 73B are separated from the waist opening 23 by at least about 50 mm, when the disposable diaper 10 is worn, the fingers are easily hooked on the front outer elastic region 71A by hand when the disposable diaper 10 is worn. Into the ground The front intermediate elastic region 71B that is grasped and bent, and, when the disposable diaper region 12 pulls up the disposable diaper 10, the step between the wearer's buttocks and the thigh is not easy to elasticize the rear middle portion. The area 73B is bent, thereby preventing wrinkles from occurring. Moreover, in order to achieve the effect of the present invention to be described later, the front and rear intermediate elastic regions 71B and 73B are located in the vicinity of the rear end edge portions 15a and 15b before the liquid-absorbent structure 15 in which the bending rigidity in the longitudinal direction Y changes in the front and rear waist regions 11 and 12. It is better.

<各彈性體><each elastomer>

前腰圍彈性體72可由弦狀或繩股狀的彈性材料所形成。位於前外側彈性區域71A的前腰圍彈性體72係由纖度300~1000dtex、伸長約約1.8~3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約3~15mm地配置為佳，在本實施形態中，纖度約620dtex、伸長倍率約2.3倍的5條彈性材料所形成，在縱方向Y上以約6mm的間隔分離配置著。位於前中間彈性區域71B的前腰圍彈性體72係配置成在平面視角上與吸液構造體15的端翼片56a重疊，並由纖度300~1000dtex、伸長約約1.8~3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約3~15mm地配置為佳，在本實施形態中，纖度約470dtex、伸長倍率約2.3倍的4條彈性材料所形成，在縱方向Y上以約10mm的間隔分離配置著。位於前內側彈性區域71C的前腰圍彈性體72係由纖度300~1000dtex、伸長約約1.8~ 3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約5~20mm地配置為佳，在本實施形態中，纖度約780dtex、伸長倍率約2.5倍的10條彈性材料所形成，在縱方向Y上以約10mm的間隔分離配置著。The front waist elastic body 72 may be formed of a string-like or strand-shaped elastic material. The front waist elastic body 72 located in the front outer elastic region 71A is composed of a plurality of elastic materials disposed in a state of a fineness of 300 to 1000 dtex and an elongation of about 1.8 to 3.5 times, and is separated from each other in the longitudinal direction Y. It is preferable to arrange it in the range of 3 to 15 mm. In the present embodiment, five elastic materials having a fineness of about 620 dtex and an elongation ratio of about 2.3 are formed, and are disposed at intervals of about 6 mm in the longitudinal direction Y. The front waist elastic body 72 located in the front intermediate elastic region 71B is disposed so as to overlap the end flap 56a of the liquid-absorbent structure 15 in a plan view angle, and has a fineness of 300 to 1000 dtex and an elongation of about 1.8 to 3.5 times. Preferably, the plurality of elastic materials are provided in a plurality of elastic materials, and are arranged to be separated from each other by about 3 to 15 mm in the longitudinal direction Y. In the present embodiment, four elastic materials having a fineness of about 470 dtex and an elongation ratio of about 2.3 are formed. They are arranged at intervals of about 10 mm in the longitudinal direction Y. The front waist elastic body 72 located in the front inner elastic region 71C is composed of a fineness of 300 to 1000 dtex and an elongation of about 1.8. It is preferably composed of a plurality of elastic materials disposed in a state of 3.5 times, and is preferably separated from each other by about 5 to 20 mm in the longitudinal direction Y. In the present embodiment, the fineness is about 780 dtex and the elongation ratio is about 2.5 times. Ten elastic materials are formed, and are arranged at intervals of about 10 mm in the longitudinal direction Y.

後腰圍彈性體74可由弦狀或繩股狀的彈性材料所形成。位於後外側彈性區域73A的後腰圍彈性體74係由纖度300~1000dtex、伸長約約1.8~3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約3~15mm地配置為佳，在本實施形態中，纖度約620dtex、伸長倍率約2.3倍的5條彈性材料所形成，在縱方向Y上以約6mm的間隔分離配置著。位於後中間彈性區域73B的後腰圍彈性體74係由纖度300~1000dtex、伸長約約1.8~3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約3~15mm地配置為佳，在本實施形態中，纖度約780dtex、伸長倍率約2.1倍的6條彈性材料所形成，在縱方向Y上以約7mm的間隔分離配置著。位於後內側彈性區域73C的後腰圍彈性體74係由纖度300~1000dtex、伸長約約1.8~3.5倍的狀態下所配設之複數條彈性材料所構成，且在縱方向Y上相互地分離約5~20mm地配置為佳，在本實施形態中，纖度約780dtex、伸長倍率約2.5倍的4條彈性材料所形成，在縱方向Y上以約15mm的間隔相互地分離配置著。The back waist elastic body 74 may be formed of a string-like or strand-shaped elastic material. The rear waist elastic body 74 located in the rear outer elastic region 73A is composed of a plurality of elastic materials disposed in a state of a fineness of 300 to 1000 dtex and an elongation of about 1.8 to 3.5 times, and is separated from each other in the longitudinal direction Y. It is preferable to arrange it in the range of 3 to 15 mm. In the present embodiment, five elastic materials having a fineness of about 620 dtex and an elongation ratio of about 2.3 are formed, and are disposed at intervals of about 6 mm in the longitudinal direction Y. The rear waist elastic body 74 located in the rear intermediate elastic region 73B is composed of a plurality of elastic materials disposed in a state of a fineness of 300 to 1000 dtex and an elongation of about 1.8 to 3.5 times, and is separated from each other in the longitudinal direction Y. In the present embodiment, six elastic materials having a fineness of about 780 dtex and an elongation ratio of about 2.1 times are formed, and are disposed at intervals of about 7 mm in the longitudinal direction Y. The rear waist elastic body 74 located in the rear inner elastic region 73C is composed of a plurality of elastic materials disposed in a state of a fineness of 300 to 1000 dtex and an elongation of about 1.8 to 3.5 times, and is separated from each other in the longitudinal direction Y. In the present embodiment, four elastic materials having a fineness of about 780 dtex and an elongation ratio of about 2.5 times are formed, and are disposed apart from each other at intervals of about 15 mm in the longitudinal direction Y.

如圖6所示，主體14具有從後腰圍區域12延伸至褲襠區域13的臀部彈性區域75。臀部彈性區域75 係朝橫軸Q呈彎曲狀延伸的複數條臀部彈性體76在伸長狀態下可收縮地安裝著。臀部彈性體76可由纖度約500~800dtex且伸長倍率約為1.0~2.5倍地伸長的複數條弦狀或繩股狀的彈性材料所形成。As shown in FIG. 6, the body 14 has a buttock elastic region 75 that extends from the rear waistline region 12 to the crotch region 13. Hip elastic area 75 A plurality of buttocks elastic bodies 76 extending in a curved shape toward the horizontal axis Q are retractably attached in an extended state. The buttocks elastic body 76 may be formed of a plurality of string-like or strand-like elastic materials having a fineness of about 500 to 800 dtex and an elongation ratio of about 1.0 to 2.5 times.

配設於後中間彈性區域73B的後腰圍彈性體74之縱方向Y的分離尺寸(間距)係較配設於前中間彈性體區域71B的前腰圍彈性體72之縱方向Y的分離尺寸更小。在此，[各彈性體之縱方向Y的分離尺寸]係指形成於在縱方向Y上相互地鄰接的彈性體之間的彈性體的非存在區域之縱方向Y的尺寸。為了將後腰圍彈性體74的分離尺寸作成為較前腰圍彈性體72的分離尺寸更小，可藉由採用將後腰圍彈性體74的數量作成較前腰圍彈性體72的數量更多、將後腰圍彈性體74的纖度(粗度)作成較前腰圍彈性體72的纖度更大等之結構，加以實現。The separation dimension (pitch) of the longitudinal waist direction Y of the rear waist elastic body 74 disposed in the rear intermediate elastic region 73B is smaller than the separation dimension of the longitudinal waist direction Y of the front waist elastic body 72 disposed in the front intermediate elastic body region 71B. . Here, [the separation dimension of the longitudinal direction Y of each elastic body] means the dimension of the longitudinal direction Y of the non-existence region of the elastic body formed between the elastic bodies adjacent to each other in the longitudinal direction Y. In order to make the separation size of the back waist elastic body 74 smaller than the separation size of the front waist elastic body 72, the number of the rear waist elastic bodies 74 can be made larger than that of the front waist elastic body 72, and The fineness (thickness) of the waist elastic body 74 is formed to be larger than the fineness of the front waist elastic body 72, and the like.

如此，由於後中間彈性區域73B的後腰圍彈性體74之數量較前中間彈性區域71B的前腰圍彈性體72之數量多，後中間彈性區域73B的後腰圍彈性體74之縱方向Y的分離尺寸較前中間彈性區域71B的前腰圍彈性體72之分離尺寸小，故，後中間彈性區域73B之縱方向Y的彎曲剛性(亦即，對延伸於橫方向X之折彎線的彎曲之剛性)係變得比前中間彈性區域71B之縱方向Y的彎曲剛性高。又，藉由在前後腰圍區域11、12配置弦狀或繩股狀的前後腰圍彈性體72、74，當後腰圍區域12通過穿用者的臀部而拉起至腰部時，在後腰圍區域12不會產 生皺紋，可將前後腰圍區域11、12按壓於穿用者的肌膚，可防止紙尿布10偏移並提升合身性。Thus, since the number of the rear waist elastic bodies 74 of the rear intermediate elastic region 73B is larger than the number of the front waist elastic bodies 72 of the front intermediate elastic region 71B, the separation dimension of the longitudinal direction Y of the rear waist elastic body 74 of the rear intermediate elastic region 73B. The front waist elastic body 72 has a smaller separation dimension than the front intermediate elastic region 71B, and therefore the bending rigidity of the rear intermediate elastic region 73B in the longitudinal direction Y (that is, the rigidity of the bending of the bending line extending in the lateral direction X) The bending rigidity is higher than the longitudinal direction Y of the front intermediate elastic region 71B. Further, by arranging the string-shaped or strand-shaped front and rear waist elastic bodies 72, 74 in the front and rear waist regions 11, 12, when the rear waist region 12 is pulled up to the waist by the wearer's buttocks, in the rear waist region 12 Will not produce Wrinkles can press the front and rear waist regions 11, 12 against the wearer's skin, preventing the paper diaper 10 from shifting and improving fit.

為了將後中間彈性區域73B的彎曲剛性作成為較前中間彈性區域71B的彎曲剛性高，可採用使用後中間彈性區域73B的後腰圍彈性體74的纖度較前中間彈性區域71B的前腰圍彈性體72的纖度大者等之設定。又，如後述的變形例、其他實施形態等所示，藉由對後中間彈性區域73B附加比起前中間彈性區域71B，縱方向Y的彎曲剛性變高等的要素(固定膠帶等的剛性賦予構件、不織布或塑膠製的輔助薄片等)，能夠將該等區域的彎曲剛性之相關關係作成為前中間彈性區域71B<後中間彈性區域73B。In order to make the bending rigidity of the rear intermediate elastic region 73B higher than that of the front intermediate elastic region 71B, the front waist elastic body of the rear waist elastic body 74 using the rear intermediate elastic region 73B having a finer degree than the front intermediate elastic region 71B may be employed. The setting of 72 is the fineness. In addition, as described in the above-described modification and other embodiments, the rear intermediate elastic region 73B is provided with an element such as a rigidity imparting member such as a fixing tape, such as a bending rigidity in the longitudinal direction Y, which is higher than the front intermediate elastic region 71B. The non-woven fabric or the plastic auxiliary sheet or the like can be used as the front intermediate elastic region 71B < the rear intermediate elastic region 73B in the correlation between the bending rigidity of the regions.

又，如本實施形態所示，在僅因前後腰圍彈性體72、74的結構使兩彈性區域71B、73B的彎曲剛性不同之情況，例如，將後腰圍彈性體74的條數作成較前腰圍彈性體72的條數多，前者的間距一定變成較後者的間距小之情況，因形成於後腰圍彈性體74的非彈性部分(彈性構件的非存在區域)而成為縱方向Y之彎曲的阻礙且朝橫方向X延伸之皺褶列的數量，較形成於前腰圍彈性體72間的非彈性部分(彈性構件的非存在區域)並朝橫方向X延伸之皺褶列的數量多，所以比起後者，前者的彎曲剛性變更高。又，在後腰圍彈性體74間的非彈性部分形成有較小的皺褶，相對於此，前腰圍彈性體71間的非彈性部分形成較大的皺褶，所以比起後者，前者的彎曲剛 性變高。Further, as described in the present embodiment, the bending rigidity of the two elastic regions 71B and 73B is different only by the configuration of the front and rear waist elastic bodies 72 and 74. For example, the number of the rear waist elastic bodies 74 is made smaller than the front waistline. The number of the elastic bodies 72 is large, and the pitch of the former is always smaller than the pitch of the latter, and is formed in the inelastic portion of the rear waist elastic body 74 (non-existing region of the elastic member) to hinder the bending of the longitudinal direction Y. Further, the number of wrinkle rows extending in the lateral direction X is larger than the number of wrinkle rows extending in the lateral direction X of the inelastic portion (non-existing region of the elastic member) formed between the front waist elastic members 72, and therefore In the latter case, the bending rigidity of the former is changed to a high level. Further, since the inelastic portion between the back waist elastic bodies 74 is formed with a small wrinkle, the inelastic portion between the front waist elastic bodies 71 forms a large wrinkle, so that the former is bent compared to the latter. just Sex becomes higher.

圖7係顯示以往的短褲型穿著用物品的一例之紙尿布110穿用時的狀態之說明圖，圖8係顯示本實施形態的紙尿布10穿用時的狀態之說明圖。FIG. 7 is an explanatory view showing a state in which the disposable diaper 110 of the present embodiment is worn, and FIG. 8 is an explanatory view showing a state in which the disposable diaper 10 of the present embodiment is worn.

如圖7所示，在以往的紙尿布110，作為前腰圍彈性體及後腰圍彈性體174使用相同的弦狀或繩股狀的彈性材料，配置於前腰圍區域的前中間彈性區域171B之前腰圍彈性體的條數設定成與配置在後腰圍區域的後中間彈性區域173B之後腰圍彈性體174的條數相同。在具有該結構的以往的紙尿布，前腰圍彈性體的間距與後腰圍彈性體174的間距大致相等，前中間彈性區域171B的彎曲剛性變得較低，因此，當穿用時將腰圍開口擴大之際，在前腰圍區域側前中間彈性區域171B被折彎而可鉤掛手指，容易進行拉起操作，相反地，在後腰圍區域，後中間彈性區域173B也與前中間彈性區域171B同樣地被折彎，造成後外側彈性區域173A抵接於大腿部77與臀部78之階差79變得不易拉起，無法圓滑地拉起紙尿布110。且，後中間彈性區域173B被折彎，抑制了紙尿布110的拉起，使得後內側彈性區域173C變得容易折彎。當在該狀態強硬地將後腰圍區域拉起時，後中間彈性區域173B成為維持著皺紋的狀態，不僅有損穿著感，亦會有成為排泄物的洩漏的原因。As shown in Fig. 7, in the conventional disposable diaper 110, the same chord-like or strand-shaped elastic material is used as the front waist elastic body and the rear waist elastic body 174, and is disposed in front of the front intermediate elastic region 171B of the front waistline region. The number of the elastic bodies is set to be the same as the number of the waist elastic bodies 174 after the rear intermediate elastic regions 173B disposed in the rear waist region. In the conventional disposable diaper having such a configuration, the pitch of the front waist elastic body is substantially equal to the pitch of the rear waist elastic body 174, and the bending rigidity of the front intermediate elastic region 171B is lowered, so that the waist opening is enlarged when worn. At the front waist region side, the front middle elastic region 171B is bent to hook the finger, and the pulling operation is easily performed. Conversely, in the rear waist region, the rear intermediate elastic region 173B is also the same as the front intermediate elastic region 171B. When bent, the step 79 in which the rear outer elastic region 173A abuts against the thigh portion 77 and the buttocks 78 becomes difficult to pull up, and the disposable diaper 110 cannot be pulled smoothly. Further, the rear intermediate elastic region 173B is bent, and the pulling up of the disposable diaper 110 is suppressed, so that the rear inner elastic region 173C is easily bent. When the rear waist region is strongly pulled up in this state, the rear intermediate elastic region 173B is in a state of maintaining wrinkles, which not only impairs the wearing feeling, but also causes leakage of excrement.

如圖8所示，如前述，在本實施形態之紙尿布10，由相同的弦狀或繩股狀的彈性材料形成前後腰圍 彈性體72、74，配置於後中間彈性區域73B的後腰圍彈性體74的條數變成較配置在前中間彈性區域71B之前腰圍彈性體72的條數更多。因此，後中間彈性區域73B的縱方向之彎曲剛性變得比前中間彈性區域71B的縱方向之彎曲剛性高，故，當穿用時將紙尿布10的腰圍開口23擴大時，前中間彈性區域71B被折彎而可讓手指鉤掛，變得容易進行拉起操作。又，在後腰圍區域12，藉由後中間彈性區域73B克服欲將因折彎的前中間彈性區域71B引起之要將其折彎的作用，不會被折彎，因此能夠在使後腰圍區域12整體貼合於穿用者的身體之狀態下拉起，不會有後外側彈性區域73A鉤掛到大腿部77與臀部78之階差79的情況產生。且，後內側彈性區域73C連動於後中間彈性區域73B的拉起，不會被折彎而能夠圓滑地拉起。由於如此可將後腰圍區域12圓滑地拉起而進行穿用，故，不會有該一部分起皺紋造成穿用感降低或排泄物的洩漏產生等之虞。As shown in Fig. 8, as described above, in the disposable diaper 10 of the present embodiment, the front and rear waists are formed of the same string-like or strand-shaped elastic material. The number of the rear waist elastic bodies 74 of the elastic bodies 72 and 74 disposed in the rear intermediate elastic region 73B becomes larger than the number of the waist elastic bodies 72 before being disposed in the front intermediate elastic region 71B. Therefore, the bending rigidity in the longitudinal direction of the rear intermediate elastic region 73B becomes higher than the bending rigidity in the longitudinal direction of the front intermediate elastic region 71B, so that the front intermediate elastic region is enlarged when the waist opening 23 of the disposable diaper 10 is enlarged when worn. The 71B is bent to allow the fingers to be hooked, making it easy to pull up. Further, in the rear waistline region 12, the rear intermediate elastic region 73B overcomes the effect of bending the front intermediate elastic region 71B due to the bending, and is not bent, so that the rear waist region can be made. 12 is pulled down as a whole in the state of the wearer's body, and there is no case where the rear outer elastic region 73A is hooked to the step 79 of the thigh portion 77 and the buttocks 78. Further, the rear inner elastic region 73C is pulled up in conjunction with the rear intermediate elastic region 73B, and can be pulled up smoothly without being bent. Since the rear waistline region 12 can be smoothly pulled up and worn, there is no possibility that the wrinkles in the portion cause a decrease in the wearing feeling or the leakage of the excrement.

在如以往的紙尿布110，配置於前後中間彈性區域171B、173B之前腰圍彈性體及後腰圍彈性體174的條數作成相同且兩區域171B、173B的縱方向之彎曲剛性大致相等之情況，會有後腰圍區域產生位置偏移而導致穿用感降低之虞，相反地，當調整前腰圍彈性體及後腰圍彈性體174的條數、間距、纖度等的各種設定而將前中間彈性區域171B的縱方向的彎曲剛性作成為與後中間彈性區域173B不會產生皺紋的程度之彎曲剛性相同程度的情 況、作成較後中間彈性區域173B的彎曲剛性更高之情況等，在穿用紙尿布110時，會有前腰圍區域全體會成為吻合於腹部之狀態，當拉起時變得不易抓取，使得操作性降低，並且壓迫腹部造成不舒適感產生之虞。在本實施形態之紙尿布10，由於配置於前中間彈性區域71B的前腰圍彈性體72之條數較配置於後中間彈性區域73B的後腰圍彈性體74之條數多，且前中間彈性區域71B的縱方向Y的彎曲剛性與後中間彈性區域73B的縱方向Y的彎曲剛性之相關關係形成為前中間彈性區域71B<後中間彈性區域73B，故，可達到防止紙尿布10的穿用操作性與穿用感降低、及防止因該降低所引起之排泄物的洩漏等的複數個技術效果。In the conventional disposable diaper 110, the number of the waist elastic body and the rear waist elastic body 174 is the same before the front and rear intermediate elastic regions 171B and 173B are arranged, and the bending rigidity in the longitudinal direction of the two regions 171B and 173B is substantially equal. When the rear waist region is displaced, the wearing feeling is lowered, and conversely, the front intermediate elastic region 171B is adjusted by adjusting various settings such as the number of the front waist elastic body and the rear waist elastic body 174, the pitch, the fineness, and the like. The bending rigidity in the longitudinal direction is the same as the bending rigidity to the extent that the rear intermediate elastic region 173B does not cause wrinkles. In the case where the bending rigidity of the rear intermediate elastic region 173B is higher, when the disposable diaper 110 is worn, the entire front waistline region will be in a state of being fitted to the abdomen, and it becomes difficult to grasp when pulled up, so that The operability is lowered, and the compression of the abdomen causes an uncomfortable feeling. In the disposable diaper 10 of the present embodiment, the number of the front waist elastics 72 disposed in the front intermediate elastic region 71B is larger than the number of the rear waist elastics 74 disposed in the rear intermediate elastic region 73B, and the front intermediate elastic region The relationship between the bending rigidity of the longitudinal direction Y of the 71B and the bending rigidity of the longitudinal direction Y of the rear intermediate elastic region 73B is formed as the front intermediate elastic region 71B < the rear intermediate elastic region 73B, so that the wearing operation of the disposable diaper 10 can be achieved. A plurality of technical effects such as a decrease in the sense of use and wear, and prevention of leakage of excrement due to the decrease.

<彎曲剛性的測定方法><Method for Measuring Bending Rigidity>

彎曲剛性係使用IMADA製扭矩試驗機(型號EX-0762)(荷重元：拉引-收縮50N，扭矩1N)進行測定。在紙尿布10的各前後腰圍區域11、12，分別準備從自腰圍開口23朝縱方向Y分離35mm的位置朝褲襠區域13側，縱方向Y的尺寸為45mm、以縱軸P為中心，X方向的尺寸為30mm的試驗片。圖9係顯示後腰圍區域12之試驗片40的採取部位之說明圖。以試驗機的一對夾具各挾持試驗片40的長度方向(縱方向Y)之兩端部41、42的10mm，使一方的夾具以另一方的夾具為中心進行旋轉，藉此，利用扭矩試驗機測定被折彎的試驗片之彎曲剛 性。旋轉速度為30rpm、旋轉角度為50度、測定角度為40度。試驗片係對前後腰圍區域11、12各準備5組(實施例1至5)，將這些的測定值(扭矩強度)(單位：mN．m)之平均值作為縱方向Y之平均彎曲剛性值。在成為測定對象的前後腰圍區域11、12存在有以伸長狀態安裝的前後腰圍彈性體72、74，因此當自紙尿布10裁切試驗片時，克服前後腰圍彈性體72、74的收縮力，使前後腰圍區域11、12朝縱方向Y及橫方向X拉引之狀態下測定尺寸。如表1所示，後中間彈性區域73B的彎曲剛性值B1均成為較前中間彈性區域71B的彎曲剛性值B2高。再者，前後中間彈性區域71B、73B的縱方向Y之彎曲剛性亦可將基於前述基準所準備的試驗片依據JIS L1096 19.1A法(45°懸臂法)進行測定再加以比較。The bending rigidity was measured using an IMADA torque tester (Model EX-0762) (load weight: pull-contraction 50 N, torque 1 N). Each of the front and rear waist regions 11 and 12 of the disposable diaper 10 is prepared to be separated from the waist opening 23 by 35 mm in the longitudinal direction Y toward the crotch region 13 side. The dimension in the longitudinal direction Y is 45 mm, and the vertical axis P is centered. A test piece having a size of 30 mm in the direction. Fig. 9 is an explanatory view showing a taken portion of the test piece 40 of the back waistline region 12. Each of the pair of jigs of the testing machine holds 10 mm of both end portions 41 and 42 in the longitudinal direction (longitudinal direction Y) of the test piece 40, and one of the jigs is rotated about the other jig, thereby utilizing the torque test. The machine measures the bending of the test piece that is bent Sex. The rotation speed was 30 rpm, the rotation angle was 50 degrees, and the measurement angle was 40 degrees. The test piece was prepared for each of the front and rear waist regions 11 and 12 (Examples 1 to 5), and the average value of these measured values (torque strength) (unit: mN.m) was taken as the average bending rigidity value in the longitudinal direction Y. . The front and rear waist elastic regions 72 and 74 are attached to the front and rear waist regions 11 and 12 to be measured. Therefore, when the test piece is cut from the disposable diaper 10, the contraction force of the front and rear waist elastic bodies 72 and 74 is overcome. The size is measured in a state where the front and rear waist regions 11 and 12 are pulled in the longitudinal direction Y and the lateral direction X. As shown in Table 1, the bending rigidity value B1 of the rear intermediate elastic region 73B is higher than the bending rigidity value B2 of the front intermediate elastic region 71B. Further, the bending rigidity in the longitudinal direction Y of the front and rear intermediate elastic regions 71B and 73B can also be measured by comparing the test pieces prepared based on the above criteria in accordance with JIS L1096 19.1A (45° cantilever method).

藉由適宜地設定各彈性區域之彈性體的材料、纖度、伸長倍率、分離尺寸等，各彈性區域之伸長應 力，具體而言為吸收體51的橫方向X外側之部位的預定寬度(30mm寬)之171%伸長時(將最大伸長尺寸設為100%時的71%之尺寸)的伸長應力係設定成前外側彈性區域約2.5N、前中間彈性區域71B約2.5N、前內側彈性區域71C約5.0N、後外側彈性區域73A約2.5N、後中間彈性區域73B約3.0N、後內側彈性區域73C約5.0N。在調整前後腰圍彈性體72、74的條數及間距，將後中間彈性區域73B的彎曲剛性作成為較前中間彈性區域71B的彎曲剛性高之情況，後中間彈性區域73B的伸長應力變得較前中間彈性區域71B的伸長應力更高。又，前外側彈性區域71A與前中間彈性區域71B的伸長應力之差約為0~3.0N，前中間彈性區域71B與前內側彈性區域71C的伸長應力之差約為0.5~3.0N，後外側彈性區域73A與後中間彈性區域73B的伸長應力之差約為0~3.0N，後中間彈性區域73B與後內側彈性區域73C的伸長應力之差約為1.0~5.0N。By appropriately setting the material, the fineness, the elongation ratio, the separation size, and the like of the elastic body in each elastic region, the elongation of each elastic region should be Specifically, the elongation stress of the predetermined width (30 mm width) of the portion outside the lateral direction X of the absorber 51 is 71% (the size of 71% when the maximum elongation is 100%) is set to The front outer elastic region is about 2.5N, the front intermediate elastic region 71B is about 2.5N, the front inner elastic region 71C is about 5.0N, the rear outer elastic region 73A is about 2.5N, the rear intermediate elastic region 73B is about 3.0N, and the rear intermediate elastic region 73B is about 3.0N, and the rear inner elastic region 73C is about 5.0N. When the number and pitch of the waist elastic bodies 72 and 74 are adjusted before and after, the bending rigidity of the rear intermediate elastic region 73B is made higher than the bending rigidity of the front intermediate elastic region 71B, and the elongation stress of the rear intermediate elastic region 73B becomes higher. The elongation stress of the front intermediate elastic region 71B is higher. Further, the difference between the elongation stresses of the front outer elastic region 71A and the front intermediate elastic region 71B is about 0 to 3.0 N, and the difference between the elongation stresses of the front intermediate elastic region 71B and the front inner elastic region 71C is about 0.5 to 3.0 N, and the rear side is The difference between the elongation stress of the elastic region 73A and the rear intermediate elastic region 73B is about 0 to 3.0 N, and the difference between the elongation stress of the rear intermediate elastic region 73B and the rear inner elastic region 73C is about 1.0 to 5.0 N.

藉由調整後腰圍彈性體74的條數及間距，將後中間彈性區域73B的伸長應力作成較後外側彈性區域73A高，藉此，可抑制後中間彈性區域73B之皺紋的產生，能讓紙尿布10的後腰圍區域12沿著穿用者的臀部圓滑地拉起。又，在伸長應力較大幅變化之部位，主體14變得容易折彎，但藉由將後外側彈性區域73A與後中間彈性區域73B的伸長應力之差作成3.0N以下，可抑制後外側彈性區域73A與後中間彈性區域73B之邊界部分的主 體14之折彎產生。再者，在前中間彈性區域71A，為了容易折彎主體14，調整前腰圍彈性體72的條數及間距，讓前中間彈性區域71B的伸長應力作成較前外側彈性區域71A低為更佳。By adjusting the number and pitch of the waist elastics 74, the elongation stress of the rear intermediate elastic region 73B is made higher than that of the rear outer elastic region 73A, whereby the generation of wrinkles in the rear intermediate elastic region 73B can be suppressed, and the paper can be made. The rear waistline region 12 of the diaper 10 is smoothly pulled up along the wearer's buttocks. Further, the main body 14 is easily bent at a portion where the elongation stress largely changes. However, by setting the difference between the elongation stresses of the rear outer elastic region 73A and the rear intermediate elastic region 73B to 3.0 N or less, the rear outer elastic region can be suppressed. The main part of the boundary portion between 73A and the rear intermediate elastic region 73B The bend of the body 14 is produced. Further, in the front intermediate elastic region 71A, in order to easily bend the main body 14, the number and pitch of the front waist elastic bodies 72 are adjusted, and the elongation stress of the front intermediate elastic region 71B is made lower than that of the front outer elastic region 71A.

如圖5所示，前外側彈性區域71A的縱方向Y之最內側前腰圍彈性體72a與前中間彈性區域71B的縱方向Y之最外側前腰圍彈性體72b的縱方向Y之分離尺寸R1大約5~20mm為佳，在本實施形態大約為16mm。前中間彈性區域71B的縱方向Y之最內側前腰圍彈性體72c與前內側彈性區域71C的縱方向Y之最外側前腰圍彈性體72d的縱方向Y之分離尺寸R2大約5~15mm為佳，在本實施形態大約為10mm。如圖6所示，後外側彈性區域73A的縱方向Y之最內側後腰圍彈性體74a與後中間彈性區域73B的縱方向Y之最外側後腰圍彈性體74b的縱方向Y之分離尺寸R1大約5~15mm為佳，在本實施形態大約為7mm。後中間彈性區域73B的縱方向Y之最內側後腰圍彈性體74c與後內側彈性區域73C的縱方向Y之最外側後腰圍彈性體74d的縱方向Y之分離尺寸R4大約10~25mm為佳，在本實施形態大約為15mm。在此，各彈性體之分離尺寸係指位於相互地鄰接的彈性體之間的彈性體的非存在區域之縱方向Y的尺寸。後外側彈性區域73A與後中間彈性區域73B的縱方向Y之分離尺寸R3係設定成較前外側彈性區域71A與前中間彈性區域71B的縱方向Y之分離尺寸R1小為佳。As shown in Fig. 5, the separation dimension R1 of the longitudinal direction Y of the outermost front waist elastic body 72a in the longitudinal direction Y of the front outer elastic region 71A and the longitudinal direction Y of the front intermediate elastic region 71B is approximately It is preferably 5 to 20 mm, and is about 16 mm in this embodiment. Preferably, the separation dimension R2 of the outermost front waist elastics 72c in the longitudinal direction Y of the front intermediate elastic region 71B and the longitudinal direction Y of the outermost front waist elastics 72d in the longitudinal direction Y of the front inner elastic region 71C is preferably about 5 to 15 mm. This embodiment is approximately 10 mm. As shown in Fig. 6, the separation dimension R1 of the longitudinal direction Y of the outermost back waist elastic body 74b of the longitudinal direction Y of the rear outer elastic region 73A in the longitudinal direction Y and the longitudinal direction Y of the rear intermediate elastic region 73B is approximately It is preferably 5 to 15 mm, and is about 7 mm in this embodiment. Preferably, the separation dimension R4 of the outermost rear waist elastics 74c in the longitudinal direction Y of the rear intermediate elastic region 73B and the longitudinal direction Y of the outermost rear waist elastic body 74d in the longitudinal direction Y of the rear inner elastic region 73C is preferably about 10 to 25 mm. This embodiment is approximately 15 mm. Here, the separation dimension of each elastic body means the dimension of the longitudinal direction Y of the non-existence region of the elastic body located between the mutually adjacent elastic bodies. The separation dimension R3 of the rear outer elastic region 73A and the longitudinal direction Y of the rear intermediate elastic region 73B is preferably set smaller than the separation dimension R1 of the longitudinal direction Y of the front outer elastic region 71A and the front intermediate elastic region 71B.

在後外側彈性區域73A與後中間彈性區域73B之間的部位、及前外側彈性區域71A與前中間彈性區域71B之間的部位，藉由伸長應力變化亦即縱方向Y之彎曲剛性改變，使得主體14變得容易折彎，但藉由將後腰圍區域12之分離尺寸R3作成較前腰圍區域11之分離尺寸R1小，能夠抑制在後腰圍區域12所產生之主體14的折彎。The portion between the rear outer elastic region 73A and the rear intermediate elastic region 73B and the portion between the front outer elastic region 71A and the front intermediate elastic region 71B are changed by the elongation stress, that is, the bending rigidity of the longitudinal direction Y, so that The main body 14 is easily bent, but by making the separation dimension R3 of the rear waistline region 12 smaller than the separation dimension R1 of the front waistline region 11, the bending of the main body 14 generated in the rear waistline region 12 can be suppressed.

吸液構造體15的前端緣部15a係位於前外側彈性區域71A的最內側前腰圍彈性體72a與前中間彈性區域71B的最外側前腰圍彈性體72b之間為佳，位於靠近最外側前腰圍彈性體72b為更佳。藉由將前端緣15a配置於伸長應力改變之前外側彈性區域71A與前中間彈性區域71B之間，使得前腰圍區域11以前端緣15a作為基點變得容易折彎，當將紙尿布10的腰圍開口23擴大時，容易鉤掛手指。吸液構造體15的後端緣15b係在前後方向Z上位於與前端緣15a相對向的位置、或位於較前端緣15a更靠近腰圍開口23側之位置為佳。藉由後端緣部15b延伸至腰圍開口23的附近，利用吸液構造體15的端翼片56b的存在，提高後中間彈性區域73B的彎曲剛性，能夠進一步抑制當將紙尿布10拉起時所產生之後腰圍區域12的折彎。The front end edge portion 15a of the liquid-absorbent structure 15 is preferably located between the innermost front waist elastic body 72a of the front outer elastic region 71A and the outermost front waist elastic body 72b of the front intermediate elastic region 71B, and is located near the outermost front waistline. The elastomer 72b is more preferred. By arranging the front end edge 15a between the outer elastic region 71A and the front intermediate elastic region 71B before the elongation stress is changed, the front waistline region 11 is easily bent with the front end edge 15a as a base point, and the waist circumference of the disposable diaper 10 is opened. When 23 is enlarged, it is easy to hook your fingers. The rear end edge 15b of the liquid-absorbent structure 15 is preferably located at a position facing the front end edge 15a in the front-rear direction Z or at a position closer to the waist opening 23 than the front end edge 15a. By the rear end edge portion 15b extending to the vicinity of the waist opening 23, the presence of the end flap 56b of the liquid-absorbent structure 15 increases the bending rigidity of the rear intermediate elastic region 73B, and can further suppress the pulling of the disposable diaper 10 The bend of the waist region 12 after the occurrence.

前後腰圍區域11、12之各彈性區域的縱方向Y的尺寸，在可達到本發明效果之情況下，可區分成為預定比率。例如，可對前後外側彈性區域71A、73A的縱方 向Y之尺寸，將前後中間彈性區域71B、73B及前後內側彈性區域71C、73C的縱方向Y之尺寸設定成為1.0~2.5倍的大小，或將各彈性區域的縱方向Y之尺寸均等地區分等。前後外側彈性區域71A、73A的縱方向Y的尺寸設定成相等為佳，前後中間彈性區域71B、73B的縱方向Y的尺寸設定成相等為佳。The dimension of the longitudinal direction Y of each of the elastic regions of the front and rear waist regions 11 and 12 can be distinguished into a predetermined ratio when the effect of the present invention can be achieved. For example, the longitudinal sides of the front and rear outer elastic regions 71A, 73A can be In the dimension of Y, the dimensions of the longitudinal direction Y of the front and rear intermediate elastic regions 71B and 73B and the front and rear inner elastic regions 71C and 73C are set to be 1.0 to 2.5 times, or the dimensions of the longitudinal direction Y of each elastic region are equally divided. Wait. The sizes of the longitudinal direction Y of the front and rear outer elastic regions 71A and 73A are set to be equal, and the dimensions of the longitudinal direction Y of the front and rear intermediate elastic regions 71B and 73B are set to be equal.

<伸長應力的測定方法><Method for measuring elongation stress>

前後腰圍彈性區域71、73的各彈性區域之伸長應力係使用INSTRON日本公司製的拉引試驗機(INSTRON型號：5564)，將拉引速度設定為100mm/min，以下述的方式進行測定。對各彈性區域中不會與吸液構造體重疊之部分，從該部分切取橫方向X的長度為30~50mm之試驗片，對處於自然狀態的試驗片寫下橫方向X的分離尺寸為20mm的一對標線，求取伸長至該分離尺寸成為1.7倍時的各試驗片的伸長力並進行比較。再者，在對各試驗片，其寬度尺寸之紙尿布10的縱方向Y的尺寸非一定之情況，藉由將試驗片之伸長力換算成寬度30mm的情況之值時的伸長應力，比較各試驗片。The elongation stress of each of the elastic regions of the front and rear waist elastic regions 71 and 73 was measured by the pull tester (INSTRON model: 5564) manufactured by INSTRON Japan Co., Ltd., and the drawing speed was set to 100 mm/min. A test piece having a length of 30 to 50 mm in the lateral direction X was cut out from the portion of the elastic region that did not overlap with the liquid-absorbent structure, and the separation dimension in the lateral direction X of the test piece in the natural state was 20 mm. The pair of reticle lines were drawn and the elongation of each test piece when the separation size was 1.7 times was obtained and compared. In the case where the dimension of the longitudinal direction Y of the disposable diaper 10 is not constant for each test piece, the elongation stress when the elongation of the test piece is converted into the value of the width of 30 mm is compared. Test piece.

<變形例><Modification>

圖10係第1實施形態的紙尿布10之變形例，從背面側(非肌膚對向面側)觀看朝縱方向Y及橫方向X伸長至各彈性體的最大伸長時(藉由彈性體的收縮作用所產生 的皺褶消失的程度)為止之紙尿布10的後腰圍區域12之平面圖。FIG. 10 is a modification of the disposable diaper 10 according to the first embodiment, and is extended from the back side (non-skin opposing side) to the longitudinal direction Y and the lateral direction X until the maximum elongation of each elastic body (by the elastic body) Contraction A plan view of the rear waistline region 12 of the disposable diaper 10 until the degree of wrinkle disappears.

在變形例之紙尿布10，在後中間彈性區域73B的中央部66，配置有當將紙尿布10廢棄時使用之作為固定膠帶來發揮作用的剛性賦予構件65。如圖11所示，剛性賦予構件65係配置於後腰圍薄片27的非肌膚對向面側並由朝縱方向Y延伸的塑膠薄片所形成，藉由經由折彎線相互地層積的第1部位61、第2部位62、及第3部位63所構成，層積狀態的剖面成為Z字形。第1部位61係經由接著劑固定於後腰圍薄片27，第2部位62係可剝離地接合於第1部位61，第3部位63係可剝離地接合於第2部位62。In the paper diaper 10 of the modified example, the rigidity imparting member 65 which functions as a fixing tape used when the disposable diaper 10 is discarded is disposed in the center portion 66 of the rear intermediate elastic region 73B. As shown in Fig. 11, the rigidity providing member 65 is formed on the non-skin opposing surface side of the back waistline sheet 27 and is formed of a plastic sheet extending in the longitudinal direction Y, and the first portion is mutually laminated by the bending line. 61. The second portion 62 and the third portion 63 are formed, and the cross section in the stacked state has a zigzag shape. The first portion 61 is fixed to the back waistline sheet 27 via an adhesive, the second portion 62 is detachably joined to the first portion 61, and the third portion 63 is detachably joined to the second portion 62.

在這樣的紙尿布10，藉由在後中間彈性區域73B安裝剛性賦予構件65，使得後中間彈性區域73B的彎曲剛性變高，可抑制當穿用紙尿布10時所產生之後中間彈性區域73B的皺紋。剛性賦予構件65不限於塑膠薄片，亦可使用單一或複數層的纖維不織布等。In the disposable diaper 10, the rigidity imparting member 65 is attached to the rear intermediate elastic region 73B, so that the bending rigidity of the rear intermediate elastic region 73B becomes high, and the wrinkles of the intermediate elastic region 73B after the generation of the disposable diaper 10 can be suppressed. . The rigidity imparting member 65 is not limited to a plastic sheet, and a single or a plurality of layers of fiber nonwoven fabric or the like may be used.

剛性賦予構件65係除了後中間彈性區域73B的橫方向X之中央部66外，亦可配置於位在該中央部66的橫方向X外側之側部67。在圖10所示的紙尿布10，剛性賦予構件65在中央部66配置於與縱軸P重疊的區域，從後內側彈性區域73C延伸至後外側彈性區域73A。當將紙尿布10從穿用者的腳朝腰拉起時，在中央部66，抵接到穿用者的臀部78而抑制紙尿布10的拉起造成容易產生 皺紋，藉由配置剛性賦予構件65，可抑制皺紋產生，可讓紙尿布10沿著臀部78圓滑地拉起。又，剛性賦予構件65亦可分別配置在橫方向X之中央部66及兩側部67、67，藉由配置複數個剛性賦予構件65，能進一步抑制後腰圍區域12的折彎。又，藉由將剛性賦予構件65從後內側彈性區域73C延伸配置到後外側彈性區域73A，在後外側彈性區域73A與後中間彈性區域73B的邊界部分、及後中間彈性區域73B與後內側彈性區域73C的邊界部分，可防止主體14折彎。The rigidity providing member 65 may be disposed on the side portion 67 located outside the lateral direction X of the center portion 66 except for the central portion 66 of the rear intermediate elastic region 73B in the lateral direction X. In the disposable diaper 10 shown in FIG. 10, the rigidity providing member 65 is disposed in a central portion 66 in a region overlapping the vertical axis P, and extends from the rear inner elastic region 73C to the rear outer elastic region 73A. When the disposable diaper 10 is pulled up from the wearer's foot toward the waist, the central portion 66 abuts against the wearer's buttocks 78 to suppress the pulling up of the disposable diaper 10, which is liable to occur. Wrinkles, by arranging the rigidity imparting member 65, suppresses generation of wrinkles, and allows the disposable diaper 10 to be smoothly pulled up along the buttocks 78. Further, the rigidity providing members 65 may be disposed in the central portion 66 and the both side portions 67 and 67 in the lateral direction X, respectively, and by arranging the plurality of rigidity providing members 65, the bending of the rear waistline region 12 can be further suppressed. Moreover, the rigidity imparting member 65 is extended from the rear inner elastic region 73C to the rear outer elastic region 73A, the boundary portion between the rear outer elastic region 73A and the rear intermediate elastic region 73B, and the rear intermediate elastic region 73B and the rear inner elastic portion. The boundary portion of the region 73C prevents the body 14 from being bent.

<第2實施形態><Second embodiment>

圖12係第2實施形態之紙尿布10的與圖2相同的平面圖，圖13係第2實施形態之紙尿布10的與圖3相同的分解斜視圖。本實施形態之紙尿布10，基本結構是與第1實施形態之紙尿布相同，因此以下僅針對差異點進行說明。Fig. 12 is a plan view similar to Fig. 2 of the disposable diaper 10 of the second embodiment, and Fig. 13 is an exploded perspective view similar to Fig. 3 of the disposable diaper 10 of the second embodiment. Since the basic structure of the disposable diaper 10 of this embodiment is the same as that of the disposable diaper of the first embodiment, only the differences will be described below.

本實施形態的紙尿布10係在前後腰圍區域11、12，配置可朝橫方向X彈性地伸長、收縮之由薄片構件所構成的腰圍彈性薄片90，取代前後腰圍彈性體72、74。腰圍彈性薄片90係包含位於前腰圍區域11的前腰圍彈性薄片91、和位於後腰圍區域12的後腰圍彈性薄片92，前腰圍彈性薄片91係配置在吸液性芯材的縱方向Y外側中基礎薄片25與前腰圍薄片26之間，後腰圍彈性薄片92係由與前腰圍彈性薄片91相同的薄片材料所構成， 配置於吸液性芯材的縱方向Y外側中基礎薄片25與後腰圍薄片27之間。前後腰圍彈性薄片91、92係在側接縫22相互地接合，形成環狀的腰圍彈性區域。在後腰圍區域12，在位於腰圍開口23的緣部82與吸液性芯材的後端緣58b之間，橫跨後腰圍區域12的兩側部間的全區域之第2區域84，進一步配置有輔助薄片93。The disposable diaper 10 of the present embodiment is provided with a waist elastic sheet 90 composed of a sheet member that is elastically stretchable and contractible in the lateral direction X in the front and rear waist regions 11 and 12, in place of the front and rear waist elastics 72 and 74. The waist elastic sheet 90 includes a front waist elastic sheet 91 located in the front waistline region 11 and a rear waist elastic sheet 92 located in the rear waist region 12, and the front waist elastic sheet 91 is disposed in the longitudinal direction Y of the liquid-absorbent core member. Between the base sheet 25 and the front waistline sheet 26, the back waist elastic sheet 92 is composed of the same sheet material as the front waist elastic sheet 91. The intermediate sheet 25 and the back waistline sheet 27 are disposed between the outer side of the longitudinal direction Y of the liquid-absorbent core material. The front and rear waist elastic sheets 91, 92 are joined to each other at the side seams 22 to form an annular waist elastic region. In the rear waist region 12, between the edge portion 82 located at the waist opening 23 and the rear end edge 58b of the liquid-absorbent core member, the second region 84 spanning the entire region between the both side portions of the back waistline region 12 is further An auxiliary sheet 93 is disposed.

輔助薄片93係配置於橫跨後腰圍區域12的兩側部間之全區域範圍，在位於前後腰圍區域11、12之吸液性芯材的縱方向Y的外側之區域，設定成第2區域84的縱方向Y之彎曲剛性較其他區域更高。在紙尿布10的前腰圍區域11，位於腰圍開口23的緣部81與吸液性芯材的前端緣58a之間，且在紙尿布10穿用狀態的前後方向Z上，與第2區域84相對向的第1區域83，係縱方向Y的彎曲剛性設定成比起第2區域84相對的低。輔助薄片93可藉由纖維不織布等所形成，朝橫方向X可彈性地伸長、收縮之薄片構件為佳。The auxiliary sheet 93 is disposed over the entire area between the both side portions of the rear waistline region 12, and is set to the second region in the region outside the longitudinal direction Y of the liquid-absorbent core members of the front and rear waist regions 11 and 12. The bending rigidity of the longitudinal direction Y of 84 is higher than that of other regions. The front waistline region 11 of the disposable diaper 10 is located between the edge portion 81 of the waist opening 23 and the front end edge 58a of the liquid-absorbent core member, and in the front-rear direction Z of the state in which the disposable diaper 10 is worn, and the second region 84. In the first region 83 facing the first direction, the bending rigidity in the longitudinal direction Y is set to be lower than that in the second region 84. The auxiliary sheet 93 can be formed by a fiber nonwoven fabric or the like, and a sheet member which is elastically stretchable and contractible in the lateral direction X is preferable.

在第2實施形態的紙尿布10，由於第2區域84的縱方向Y之彎曲剛性較第1區域83的縱方向Y之彎曲剛性高，故，可達到與第1實施形態相同的技術效果。In the disposable diaper 10 of the second embodiment, since the bending rigidity in the longitudinal direction Y of the second region 84 is higher than the bending rigidity in the longitudinal direction Y of the first region 83, the same technical effects as those in the first embodiment can be obtained.

在構成本發明之紙尿布10的各構成構件，除了本說明書所記載之材料以外，能夠不受限制地採用在這種物品的領域中一般所使用的各種習知材料。又，在本說明書及申請專利範圍中所使用之「第1」、「第2」及「第3」的用語僅是用來區別相同要件、位置等。In addition to the materials described in the present specification, each of the constituent members constituting the disposable diaper 10 of the present invention can employ various conventional materials generally used in the field of such articles. In addition, the terms "first", "second", and "third" used in the specification and the claims are used to distinguish the same elements, positions, and the like.

以上所記載之關於本發明的揭示內容至少可整理成以下事項。The disclosure of the present invention described above can be at least organized into the following matters.

一種短褲型紙尿布10，係具有縱方向Y及橫方向X、肌膚對向面及位於其相反側的非肌膚對向面、前腰圍區域11、後腰圍區域12、以及位於前後腰圍區域11、12間之褲襠區域13，並包含主體14，和將前後腰圍區域11、12的兩側緣部予以連結而區劃成之腰圍開口23及一對腳開口24，該主體含有從褲襠區域13朝前後腰圍區域11、12延伸的吸液性芯材，其特徵為：吸液性芯材係具有在縱方向Y上分離相對向並朝橫方向X延伸之前端緣58a與後端緣58b，前腰圍區域11係具有以伸長狀態可朝橫方向X收縮地安裝於前腰圍區域11之兩側緣部間的複數條前腰圍彈性體72、和配置有前腰圍彈性體72且位於腰圍開口23的緣部與吸液性芯材的前端緣58a之間的前中間彈性區域71B，後腰圍區域12係具有以伸長狀態可朝橫方向X收縮地安裝於後腰圍區域12之兩側緣部間的複數條後腰圍彈性體74、和配置有後腰圍彈性體74且位於腰圍開口23的緣部與吸液性芯材的後端緣58b之間的後中間彈性區域73B，前中間彈性區域71B與後中間彈性區域73B係在穿用狀態的前後方向Z上位於相互地對向的位置，後中間彈性區域73B的後腰圍彈性體74之數量係較前中間彈性區域71B的前腰圍彈性體72的數量多，在後中間彈性區域73B相互地鄰接的後腰圍彈性體74的縱方向Y之分離尺寸係較在前中間彈性區域71B相 互地鄰接的前腰圍彈性體72的縱方向Y之分離尺寸更小。A pants-type diaper 10 having a longitudinal direction Y and a transverse direction X, a skin facing surface, a non-skin opposing surface on the opposite side, a front waistline region 11, a back waist region 12, and front and rear waist regions 11, 12 The crotch region 13 includes a main body 14 and a waist opening 23 and a pair of leg openings 24 which are joined to each other at both side edges of the front and rear waist regions 11, 12, and the main body includes a waist region from the crotch region 13 toward the front and rear. The liquid-absorbent core material extending in the regions 11, 12 is characterized in that the liquid-absorbent core material has a front edge 58a and a rear end edge 58b which are separated from each other in the longitudinal direction Y and extend in the lateral direction X, and the front waistline region The eleventh body has a plurality of front waist elastic bodies 72 that are attached to both side edges of the front waistline region 11 so as to be contractible in the lateral direction X in an extended state, and an edge portion on which the front waist elastic body 72 is disposed and located at the waist opening 23 The front intermediate elastic region 71B between the front end edge 58a of the liquid-absorbent core member and the rear waistline region 12 have a plurality of strips which are attached to the both side edges of the rear waistline region 12 so as to be contractible in the lateral direction X in an extended state. Rear waist elastics 74, and configuration The rear waist elastic body 74 is located in the rear intermediate elastic region 73B between the edge of the waist opening 23 and the rear end edge 58b of the liquid-absorbent core material, and the front intermediate elastic region 71B and the rear intermediate elastic region 73B are worn. The front-rear direction Z is located at a position opposite to each other, and the number of the rear waist elastics 74 of the rear intermediate elastic region 73B is larger than the number of the front waist elastics 72 of the front intermediate elastic region 71B, and the rear intermediate elastic regions 73B are mutually The separation dimension of the longitudinal direction Y of the adjacent rear waist elastic body 74 is smaller than that of the front intermediate elastic region 71B. The separation dimension of the longitudinal direction Y of the front waist elastic bodies 72 adjacent to each other is smaller.

一種短褲型紙尿布10，係具有縱方向Y及橫方向X、肌膚對向面及位於其相反側的非肌膚對向面、前腰圍區域11、後腰圍區域12、以及位於前後腰圍區域11、12之褲襠區域13，並包含主體14和將前後腰圍區域11、12的兩側緣部予以連結而區劃成之腰圍開口23及一對腳開口24，該主體含有從褲襠區域13朝前後腰圍區域11、12延伸的吸液性芯材，其特徵為：吸液性芯材係具有在縱方向Y上分離相對向並朝橫方向X延伸之前端緣58a與後端緣58b，前腰圍區域11係具有位於腰圍開口23的緣部與吸液性芯材的前緣端58a之間，並橫跨前腰圍區域11的兩側緣部間的全區域範圍之第1區域83，後腰圍區域12係具有位於腰圍開口23的緣部與吸液性芯材的後緣端58b之間，並橫跨後腰圍區域12的兩側緣部間的全區域範圍之第2區域84，第1區域83與第2區域84係在穿用狀態的前後方向Z上位於相互地對向的位置，第2區域84的縱方向Y之彎曲剛性較第1區域83的縱方向Y之彎曲剛性高。A pants-type diaper 10 having a longitudinal direction Y and a transverse direction X, a skin facing surface, a non-skin opposing surface on the opposite side, a front waistline region 11, a back waist region 12, and front and rear waist regions 11, 12 The crotch region 13 includes a main body 14 and a waist opening 23 and a pair of leg openings 24 that are joined to each other at both side edges of the front and rear waist regions 11, 12, the main body including the crotch region 13 toward the front and rear waist regions 11 The 12-end absorbent core material is characterized in that the liquid-absorbent core material has a front edge 58a and a rear end edge 58b which are separated from each other in the longitudinal direction Y and extend in the lateral direction X, and the front waistline region 11 is The first region 83 is disposed between the edge portion of the waist opening 23 and the leading edge end 58a of the liquid-absorbent core member, and spans the entire region between the both side edges of the front waistline region 11, and the rear waist region 12 is There is a second region 84 between the edge portion of the waist opening 23 and the trailing edge end 58b of the liquid-absorbent core material, and spanning the entire region between the both side edges of the back waist region 12, the first region 83 and The second region 84 is located opposite to each other in the front-back direction Z of the wearing state. High flexural rigidity of the bending rigidity position Y, Y of the second region 84 in the longitudinal direction than in the longitudinal direction of the first region 83.

在上述段落0058及0059所揭示的本發明至少可包含下述實施形態。The invention disclosed in the above paragraphs 0058 and 0059 may include at least the following embodiments.

(1)配置有前腰圍彈性體72的前外側彈性區域71A位於前腰圍區域11的腰圍開口23之緣部，配置有後腰圍彈性體74的後外側彈性區域73A位於後腰圍區域12的腰 圍開口23之緣部，後外側彈性區域73A的最內側後腰圍彈性體74a與後中間彈性區域73B的最外側後腰圍彈性體74b的縱方向Y之分離尺寸，係較前外側彈性區域71A的最內側前腰圍彈性體72a與前中間彈性區域71B的最外側前腰圍彈性體72b的縱方向Y之分離尺寸小。(1) The front outer elastic region 71A in which the front waist elastic body 72 is disposed is located at the edge of the waist opening 23 of the front waistline region 11, and the rear outer elastic region 73A of the rear waist elastic body 74 is disposed at the waist of the rear waist region 12. The edge portion of the surrounding opening 23 is separated from the longitudinal direction Y of the outermost rear waist elastic body 74a of the rear outer elastic region 73A and the outermost rear waist elastic body 74b of the rear intermediate elastic region 73B, which is smaller than the front outer elastic region 71A. The separation dimension of the innermost front waist elastic body 72a and the longitudinal direction Y of the outermost front waist elastic body 72b of the front intermediate elastic region 71B is small.

(2)後中間彈性區域73B的預定寬度之伸長應力係較後外側彈性區域73A的預定寬度之伸長應力高。(2) The elongation stress of the predetermined width of the rear intermediate elastic region 73B is higher than the elongation stress of the predetermined width of the rear outer elastic region 73A.

(3)在後中間彈性區域73B的一部分，配置有薄片狀或帶狀的剛性賦予構件65。(3) A sheet-like or strip-shaped rigidity providing member 65 is disposed in a part of the rear intermediate elastic region 73B.

(4)剛性賦予構件65位於後中間彈性區域73B的橫方向X之中央部66。(4) The rigidity providing member 65 is located at the central portion 66 of the rear intermediate elastic region 73B in the lateral direction X.

(5)剛性賦予構件65為朝縱方向Y延伸之固定膠帶。(5) The rigidity providing member 65 is a fixing tape that extends in the longitudinal direction Y.

11‧‧‧前腰圍區域11‧‧‧ Front Waist Area

12‧‧‧後腰圍區域12‧‧‧After Waist Area

15‧‧‧吸液構造體15‧‧‧Aspirating structure

51‧‧‧吸收體51‧‧‧Acceptor

58a‧‧‧吸液性芯材的前端緣58a‧‧‧ front edge of liquid-absorbent core

58b‧‧‧吸液性芯材的後端緣58b‧‧‧The rear edge of the liquid-absorbent core

60‧‧‧接合區域60‧‧‧ joint area

71A‧‧‧前外側彈性區域71A‧‧‧ anterior lateral elastic zone

71B‧‧‧前中間彈性區域(第1區域)71B‧‧‧Pre-intermediate elastic zone (1st zone)

71C‧‧‧前內側彈性區域71C‧‧‧front medial elastic zone

72‧‧‧前腰圍彈性體72‧‧‧ Front waist elastics

73A‧‧‧後外側彈性區域73A‧‧‧ rear outer elastic region

73B‧‧‧後中間彈性區域(第2區域)73B‧‧‧After intermediate elastic zone (2nd zone)

73C‧‧‧後內側彈性區域73C‧‧‧ rear medial elastic region

74‧‧‧後腰圍彈性體74‧‧‧After waist elastic

76‧‧‧臀部彈性體76‧‧‧Hip elastomer

Z‧‧‧前後方向Z‧‧‧ direction

S1、S2‧‧‧假想線S1, S2‧‧‧ imaginary line

Claims (6)

一種短褲型穿著用物品，係具有縱方向及橫方向、肌膚對向面及位於其相反側的非肌膚對向面、前腰圍區域、後腰圍區域、以及位於前述前後腰圍區域間之褲襠區域，並包含主體和將前述前後腰圍區域的兩側緣部予以連結而區劃成之腰圍開口及一對腳開口，該主體含有從前述褲襠區域朝前述前後腰圍區域延伸的吸液性芯材，其特徵為：前述吸液性芯材，係具有在前述縱方向上分離相對向並朝前述橫方向延伸之前端緣與後端緣，前述前腰圍區域，係具有在前述腰圍開口側朝前述橫方向延伸之前外側彈性區域；在前述褲襠區域側朝前述橫方向延伸之前內側彈性區域；及前述吸液性芯材的前述縱方向外側中，位於前述前外側彈性區域與前述前內側彈性區域之間的第1區域，在前述前外側彈性區域、前述前內側彈性區域及前述第1區域，配置有在前述前腰圍區域的兩側緣部間以伸長狀態朝前述橫方向可收縮地安裝的複數條前腰圍彈性體，前述後腰圍區域，係具有在前述腰圍開口側朝前述橫方向延伸之後外側彈性區域；在前述褲襠區域側朝前述橫方向延伸之後內側彈性區域；及前述吸液性芯材的前述縱方向外側中，位於前述後外側彈性區域與前述後內側彈性區域之間的第2區域，在前述後外側彈性區域、前述後內側彈性區域及前述 第2區域，配置有在前述後腰圍區域的兩側緣部間以伸長狀態朝前述橫方向可收縮地安裝的複數條後腰圍彈性體，前述第1區域與前述第2區域，係在穿用狀態的前後方向上處於相對向的位置，前述第2區域之前述後腰圍彈性體的數量，係較前述第1區域之前述前腰圍彈性體的數量多，在前述第2區域上相互地鄰接的前述後腰圍彈性體的前述縱方向之分離尺寸，係較在前述第1區域相互地鄰接的前述前腰圍彈性體的前述縱方向之分離尺寸小，在前述第2區域的一部分，配置有薄片狀或帶狀的剛性賦予構件。A pants-type wearing article having a longitudinal direction and a lateral direction, a skin facing surface, a non-skin opposing surface on the opposite side, a front waist region, a back waist region, and a crotch region between the front and rear waist regions, And comprising a main body and a waist opening and a pair of leg openings which are formed by joining the two side edges of the front and rear waist regions, wherein the main body includes a liquid-absorbent core material extending from the crotch region toward the front and rear waist regions, and is characterized by The liquid-absorbent core material has an end edge and a rear end edge which are separated from each other in the longitudinal direction and extend in the lateral direction, and the front waistline region has a lateral direction extending toward the waist opening side. a front outer elastic region; an inner elastic region before the lateral direction of the crotch region side; and a longitudinal outer side of the liquid-absorbent core member between the front outer elastic region and the front inner elastic region In the first region, the front waist elastic region, the front inner elastic region, and the first region are disposed on the front waistline a plurality of front waist elastic bodies that are retractably attached to the lateral direction in an extended state between the both side edges of the field, wherein the rear waist region has an outer elastic region extending in the lateral direction on the waist opening side; a second elastic region between the rear outer elastic region and the rear inner elastic region in the longitudinal direction outer side of the crotch region side in the lateral direction; and the rear side Elastic region, the aforementioned rear inner elastic region, and the foregoing The second region is provided with a plurality of rear waist elastic bodies that are retractably attached to the lateral direction in an extended state between the both side edges of the rear waist region, and the first region and the second region are worn. The front-rear direction of the state is in a relative position, and the number of the back waist elastic bodies in the second region is larger than the number of the front waist elastic bodies in the first region, and is adjacent to each other in the second region. The separation dimension of the rear waist elastic body in the longitudinal direction is smaller than the separation dimension of the front waist elastic body adjacent to each other in the first region, and is arranged in a sheet shape in a part of the second region. Or a strip-shaped rigidity imparting member. 一種短褲型穿著用物品，係具有縱方向及橫方向、肌膚對向面及位於其相反側的非肌膚對向面、前腰圍區域、後腰圍區域、以及位於前述前後腰圍區域間之褲襠區域，並包含主體和將前述前後腰圍區域的兩側緣部予以連結而區劃成之腰圍開口及一對腳開口，該主體含有從前述褲襠區域朝前述前後腰圍區域延伸的吸液性芯材，其特徵為：前述吸液性芯材，係具有在前述縱方向上分離相對向並朝前述橫方向延伸之前端緣與後端緣，前述前腰圍區域，係具有位於前述腰圍開口的緣部與前述吸液性芯材的前述前端緣之間，並橫跨前述前腰圍區域的兩側緣部間之全區域的第1區域，前述後腰圍區域，係具有位於前述腰圍開口的緣部與 前述吸液性芯材的前述後端緣之間，並橫跨前述後腰圍區域的兩側緣部間之全區域的第2區域，前述第1區域與前述第2區域，係在穿用狀態的前後方向上處於相對向的位置，前述第2區域的前述縱方向之彎曲剛性，係較前述第1區域的前述縱方向之彎曲剛性高，在前述第2區域的一部分，配置有薄片狀或帶狀的剛性賦予構件。A pants-type wearing article having a longitudinal direction and a lateral direction, a skin facing surface, a non-skin opposing surface on the opposite side, a front waist region, a back waist region, and a crotch region between the front and rear waist regions, And comprising a main body and a waist opening and a pair of leg openings which are formed by joining the two side edges of the front and rear waist regions, wherein the main body includes a liquid-absorbent core material extending from the crotch region toward the front and rear waist regions, and is characterized by The liquid-absorbent core material has an end edge and a rear end edge which are separated from each other in the longitudinal direction and extend in the lateral direction, and the front waistline region has an edge portion located at the waist opening and the suction a first region between the front end edges of the liquid core material and a total area between both side edges of the front waistline region, wherein the rear waist region has an edge portion at the waist opening and a second region between the rear end edges of the liquid-absorbent core material and spanning the entire region between both side edges of the rear waist region, wherein the first region and the second region are in a wearing state The bending rigidity in the longitudinal direction of the second region is higher than the bending rigidity in the longitudinal direction of the first region, and a sheet shape or a part of the second region is disposed in a frontward direction. A strip-shaped rigidity imparts a member. 如申請專利範圍第1項之短褲型穿著用物品，其中，前述後外側彈性區域的最內側後腰圍彈性體與前述第2區域的最外側後腰圍彈性體的前述縱方向之分離尺寸，係較前述前外側彈性區域的最內側前腰圍彈性體與前述第1區域的最外側前腰圍彈性體的前述縱方向之分離尺寸小。The pants-type wearing article according to the first aspect of the invention, wherein the separation dimension of the innermost rear waist elastic body of the rear outer elastic region and the outermost rear waist elastic body of the second region is smaller than The outermost front waist elastic body of the front outer elastic region and the outermost front waist elastic body of the first region have a small separation dimension in the longitudinal direction. 如申請專利範圍第3項之短褲型穿著用物品，其中，前述第2區域的預定寬度之伸長應力係較前述後外側彈性區域的預定寬度之伸長應力高。The underpants type wearing article according to claim 3, wherein the elongation stress of the predetermined width of the second region is higher than the elongation stress of the predetermined width of the rear outer elastic region. 如申請專利範圍第1至4項中任一項之短褲型穿著用物品，其中，前述剛性賦予構件係位於前述第2區域的前述橫方向之中央部。The pants-type wearing article according to any one of claims 1 to 4, wherein the rigidity providing member is located at a central portion of the second region in the lateral direction. 如申請專利範圍第5項之短褲型穿著用物品，其中，前述剛性賦予構件為朝前述縱方向延伸之固定膠帶。The pants-type wearing article according to claim 5, wherein the rigidity providing member is a fixing tape extending in the longitudinal direction.
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WO2015001826A1 (en) 2015-01-08

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