CN104010612A - Underwear-type worn article - Google Patents
Underwear-type worn article Download PDFInfo
- Publication number
- CN104010612A CN104010612A CN201280063760.6A CN201280063760A CN104010612A CN 104010612 A CN104010612 A CN 104010612A CN 201280063760 A CN201280063760 A CN 201280063760A CN 104010612 A CN104010612 A CN 104010612A
- Authority
- CN
- China
- Prior art keywords
- seal portion
- side seal
- junction surface
- mentioned
- pants type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
- A61F13/4963—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs characterized by the seam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8207—Testing the joint by mechanical methods
- B29C65/8215—Tensile tests
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/431—Joining the articles to themselves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
- B29C66/72941—Non woven mats, e.g. felt coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/4871—Underwear
- B29L2031/4878—Diapers, napkins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Epidemiology (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)
Abstract
A plurality of elastic members (81, 82) extending in a width direction (X) are arranged on an enveloping member (6) on a ventral section (A) and a dorsal section (B), there being a pair of side seal sections (7) formed by mutually overlapping and joining together bilateral edges (6a) of the ventral section (A) and bilateral edges (6b) of the dorsal section (B). The side seal sections (7) are formed by intermittent ultrasonic bonding of the bilateral edges (6a, 6b) along the longitudinal direction (Y). The elastic members (81, 82) are fixed to an outer sheet (61) and an inner sheet (62) of the enveloping member (6) using only an adhesive agent (9) between the sheets. The adhesive agent (9) fixes the elastic members (81, 82) at two end areas of the elastic members (81, 82). A region to which the adhesive agent (9) is applied is located further inward than the side edges of the side seal sections (7) outward in the width direction.
Description
Technical field
The present invention relates to pants type and wear article.Pants type of the present invention is worn article, suitable to especially the such as pants type absorptive article such as Breeches type disposable diaper, pants type sanitary napkin.
Background technology
The side seal portion of Breeches type disposable diaper, requires to engage with maintaining under state firmly in the dress of article, requires on the other hand can easily peel off while discarding.In addition, also require to maintain firmly and when joint, improve the flexibility of side seal portion.
In the technical field of Breeches type disposable diaper, the side seal portion of at present motion, can enumerate in patent documentation 1 for example, record and with bonding agent with seal the side seal portion forming.In addition, can also enumerate as recorded in patent documentation 2, the bonding line-group of spaced linearity that separates regulation along the above-below direction of article is arranged to multiple row and the parts that form along the width of article in side seal portion.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 7-213553 communique
Patent documentation 2: TOHKEMY 2002-11043 communique
Summary of the invention
But in recent years, from the viewpoint of low cost and low environmental load, as the parts that form side seal portion, there is the situation of the sheet material that uses low mass area ratio, from improving the viewpoint of surcharge of article, there is the situation that uses the sheet material that retractility, texture etc. are improved.But, while using these sheet material to form side seal portion, there is the situation that is difficult to the intensity of this side seal portion to be brought up to practical sufficient degree.Particularly, from manufacturing the viewpoint of funds, while forming side seal portion with the non-woven fabrics of the fiber formation of the single resin of formation such as polypropylene, exist so single resin fibre to be easily subject to hot injury, once be subject to hot injury, the problem that the strength of materials will reduce terrifically.
The present invention relates to a kind of pants type and wear article, it has veutro portion, crotch bottom and drosal part, and above-mentioned veutro portion, crotch bottom and drosal part have by being positioned near the inner layer piece of wearer's health one side and being positioned at the outer packaging material forming away from the outer-skin sheet of wearer's health one side.This pants type is worn article and is disposed the multiple elastomeric elements that extend at width at the described outer packaging material of described veutro portion and described drosal part, and this pants type wear article and had a pair of side seal portion that overlapped joint the in edge, both sides of the edge, both sides of this veutro portion and this drosal part formed.Described side seal portion carries out ultrasound wave joint to edge, described both sides by the long side direction along described article to form off and on, and described elastomeric element is being fixed on by bonding agent between described outer-skin sheet and described inner layer piece on described outer-skin sheet and described inner layer piece sheet.Utilize the fixing of described elastomeric element that described bonding agent carries out, to carry out at two end regions of this elastomeric element, the region that has applied described bonding agent is positioned at than the more inner side's of lateral margin of the foreign side by width of described side seal portion position, position between described two end regions, described elastomeric element and described outer-skin sheet and described inner layer piece are unbound state.
Brief description of the drawings
Fig. 1 is the axonometric chart of the Breeches type disposable diaper of one embodiment of the present invention.
Fig. 2 sees from absorbent main body side the expansion plane graph that the Breeches type disposable diaper shown in Fig. 1 is launched to extended state.
Fig. 3 is the sectional view while cutting off the side seal portion of the diaper shown in Fig. 1 and near the position it along I-I line.
Fig. 4 is the side seal portion of the diaper shown in presentation graphs 1 and the domain of the existence of bonding agent at position and the ideograph of the position relationship at junction surface near it.
Fig. 5 is the key diagram of the size at the junction surface of side seal portion.
Fig. 6 is the ideograph of the configuration relation at the junction surface between the junction surface of expression side seal portion is listed as.
Fig. 7 represents the side seal portion of other embodiments of the present invention and the domain of the existence of bonding agent at position and the ideograph (being equivalent to Fig. 4) of the position relationship at junction surface near it.
Fig. 8 sees from absorbent main body side the expansion plane graph that the diaper of other embodiments of the present invention is launched to extended state.
Detailed description of the invention
Below, based on preferred embodiment with reference to the accompanying drawings of the present invention.Fig. 1 and Fig. 2 represent to wear as pants type of the present invention the Breeches type disposable diaper of an embodiment of article.Breeches type disposable diaper 1 shown in these figure, has at its A of veutro portion and drosal part B the multiple elastomeric elements 8 that extend at the width of diaper 1.And, have that edge, both sides 6a, the 6a of the A of veutro portion and edge, both sides 6b, the 6b of drosal part B engage and a pair of side seal portion 7,7 that forms.
As depicted in figs. 1 and 2, diaper 1 is formed as symmetrical with respect to vertical centre line C L.Therefore mainly describe with a side for symmetrical part in the following description.And " Y " direction shown in each figure is the long side direction that links the diaper 1 of the A of veutro portion and drosal part B, this direction is parallel with vertical centre line C L." X " direction shown in each figure is the width of the diaper 1 orthogonal with long side direction in addition, and this direction is the direction orthogonal with indulging centre line C L.Below, describe diaper 1 in detail.
As shown in Figure 2, diaper 1 has: have positive dough sheet 2, the opaque liquid (also comprising water-repellancy) of liquid permeability back sheet 3, be arranged at the absorbent main body 5 of the lengthwise in fact of the absorber 4 between two 2,3; With the outer packaging material 6 that is configured in back sheet 3 one sides of absorbent main body 5 and fixes with these absorbent main body 5 combinations.As described later, outer packaging material 6 is made up of outer-skin sheet 61 and inner layer piece 62, and absorbent main body 5 is configured on the inner layer piece of outer packaging material 6.
As shown in Figure 2, diaper 1 has the A of veutro portion, crotch bottom C and drosal part B successively along its long side direction (Y-direction).The A of veutro portion of diaper 1 is the position that is positioned at wearer's veutro while wearing.Drosal part B is the position that is positioned at wearer's dorsal part.Crotch bottom C is the position that is positioned at wearer's hip crotch region.
In diaper 1, absorber 4 is rectangles of growing at long side direction Y.Positive dough sheet 2 and back sheet 3 are also respectively rectangle, be bonded with each other, and be also bonded with each other from the extended part of two ora terminalis of width X from the extended part of two ora terminalis of the long side direction Y of absorber 4.By such joint, form the absorbent main body 5 of the rectangle of lengthwise.
As shown in Figure 2, outer packaging material 6 extends in the whole region of foreign side of absorbent main body 5, at the middle section of long side direction Y, shrinks towards the inner side of width X.And, by making the inner face of edge, both sides 6a, 6a of the A of veutro portion and the inner face of edge, both sides 6b, the 6b of drosal part B of outer packaging material 6 overlapping each other, engage as herringbone (shape of putting the palms together before one), form a pair of side seal portion 7,7, thus as shown in Figure 1, form the medicated underpants diaper 1 with the WO of waist opening portion and a pair of leg opening part LO, LO.
Outer packaging material 6 is formed by outer-skin sheet 61 and inner layer piece 62 as shown in Figure 2.Inner layer piece 62, is positioned at health one side near wearer.On the other hand, outer-skin sheet 62 is positioned at health one side away from wearer.Outer-skin sheet 61 forms the outmost surface of diaper 1.Outside forming, between the outer-skin sheet 61 and inner layer piece 62 of packaging material 6, dispose the multiple elastomeric elements 8 that extend at the width of diaper 1.Specifically, outside forming between the outer-skin sheet 61 and inner layer piece 62 of packaging material 6, dispose waist elastic members 81, waist elastomeric element 82 and leg elastic members 83 as elastomeric element 8, be formed with waist elasticity region (waist fold), waist Hookean region (waist fold) and be formed as a pair of shank Hookean region (leg creases) of ring-type at the edge, both sides of the A of veutro portion and drosal part B 6a, 6a, 6b, 6b respectively.Waist elasticity region (waist fold) configures off and on multiple waist elastic members 81 and with elongation state, its (multiple waist elastic members 81) set is formed in long side direction (Y-direction) foreign side of absorbent main body 5.The position of waist elastomeric element (waist fold) between waist elastic members 81 and the contraction flow region of outer packaging material 6 configures off and on multiple waist elastomeric elements 82 and with elongation state, its (waist elastomeric element 82) set formed at long side direction (Y-direction).
While seeing along the width X of diaper 1, waist elastic members 81 is configured in not overlapping with absorbent main body 5 position.Specifically, waist elastic members 81 is configured between the ora terminalis of long side direction and the waist opening portion of diaper 1 end of absorbent main body 5.On the other hand, about waist elastomeric element 82, in the time that the width X along diaper 1 sees, this waist elastomeric element 82 is configured in the position overlapping with absorber 4.And this waist elastomeric element 82 configures in the mode of not crosscut absorber 4.Specifically, the end of the foreign side by width X of waist elastomeric element 82, preferably terminates in than place of side in the width of the more close diaper 1 of side seal portion 7.And, lean on the interior side's of width X end, stopping along the position of long side direction Y lateral margin or than the more outer side of this lateral margin place of absorber 4, or be positioned at the bottom of absorber 4 just over this lateral margin.
Leg elastic region (leg creases) forms in the following manner at the A of veutro portion, , contraction flow region set by multiple leg elastic members 83 from a side's (left side of Fig. 2) of the A of veutro portion side edge part 6a along a side (left side of Fig. 2) of the A of veutro portion, Y-direction middle section at crotch bottom C crosses along directions X, along the opposing party's (right side of Fig. 2) of the A of veutro portion contraction flow region until arrive the opposing party's (right side of Fig. 2) of the A of veutro portion side edge part 6a, with elongation state set, central part (comprising the position of vertical centre line C L) at crotch bottom C cuts.Equally, contraction flow region set by multiple leg elastic members 83 from a side's (left side of Fig. 2) of drosal part B side edge part 6b along a side (left side of Fig. 2) of drosal part B, Y-direction middle section at crotch bottom C crosses along directions X, along the opposing party's (right side of Fig. 2) of drosal part B contraction flow region until arrive the opposing party's (right side of Fig. 2) of drosal part B side edge part 6b, with elongation state set, central part at crotch bottom C cuts, and forms leg elastic region (leg creases) thus at drosal part B.The end of the foreign side of the width X by diaper 1 of each leg elastic members 83 stops in the position than the 7 more inner sides of side seal portion.
As depicted in figs. 1 and 2, each side seal portion 7 has: the first junction surface row 71a being formed by multiple the first junction surface 70a, and above-mentioned multiple the first junction surface 70a are that engage side edge 6a, 6b form off and on by the long side direction Y along diaper 1; With the second junction surface row 71b being formed by multiple the second junction surface 70b equally.The first junction surface row 71a and the second junction surface row 71b extend along the long side direction Y of diaper 1, and configure along the width X of diaper 1.In the situation that multiple junction surface row 71a, 71b are set like this, from the viewpoint of the bulk strength of side seal portion 7, between each junction surface row (the first junction surface row 71a and the second junction surface row 71b), as depicted in figs. 1 and 2, preferably on the width X of diaper 1, there is no gap.
Fig. 3 cuts the side seal portion 7 of the diaper shown in Fig. 11 and near the position it along the I-I line of Fig. 1, the sectional view of seeing from long side direction Y.As shown in the drawing, side seal portion 7 is by by overlapping in inner layer piece 62 mode respect to one another of this outer packaging material 6 the side edge part 6b of the outer packaging material 6 of the side edge part 6a of the outer packaging material 6 of the formation A of veutro portion and formation drosal part B, is engaged and is formed by junction surface 70a, 70b.In addition, the waist elastic members 81, waist elastomeric element 82 and the leg elastic members 83 that on the A of veutro portion and drosal part B, configure respectively, be configured between the outer-skin sheet 61 and inner layer piece 62 that forms outer packaging material 6.As previously mentioned, the end of the width foreign side by diaper 1 of waist elastic members 81, waist elastomeric element 82 and leg elastic members 83, stops in the position than the 7 more inner sides of side seal portion., the end of the foreign side of the width X by diaper 1 of these elastomeric elements 81,82,83, is not present in side seal portion 7.In addition, these elastomeric elements 81,82,83 are only being fixed on by bonding agent 9 on these sheets 61,62 between outer-skin sheet 61 and inner layer piece 62., these elastomeric elements 81,82,83, are not fixed on outer-skin sheet 61 and inner layer piece 62 by the fixed form outside bonding agent 9.In addition, about waist elastic members 81 and waist elastomeric element 82, they are to carry out at two end regions of these elastomeric elements 81,82 by the fixing of bonding agent 9 as shown in Figure 3, position between this two end regions, these elastomeric elements 81,82 and outer-skin sheet 61 and inner layer piece 62 are unbound state.By becoming disengaged state, packaging material 6 produces large pleat, wrinkle outside, therefore can obtain good wearing effect, and side seal portion 7 and junction surface 70a, 70b not eye-catching, can obtain good outward appearance.And at the position that disposes elastomeric element 81,82, between the adjacent elastomeric element 81,82 of long side direction Y, the junction surface of fixed outer layer sheet 61 and inner layer piece 62 is not to be provided with multiple (not shown) by the mode of this elastomeric element 81,82.By the configuration mode at this junction surface, can adjust the pleat of outer packaging material 6, the shape of wrinkle.
Fig. 4 schematically shows the position of the above-mentioned bonding agent 9 of coating.As shown in the drawing, bonding agent 9 is coated in than the more inner side's of lateral margin of the foreign side by width of side seal portion 7 region D.Specifically,, in present embodiment, the region D that is coated with bonding agent 9 is formed at the position of more depending on the interior side of the width X of diaper 1 than the interior side's by width of side seal portion 7 lateral margin.,, in side seal portion 7, bonding agent is non-existence.Namely, forming between the outer-skin sheet 61 and inner layer piece 62 of side seal portion 7, and between a side inner layer piece 62 and the opposing party's inner layer piece 62, bonding agent is non-existence.Bonding agent 9 is coated on the width X of diaper 1 and the region D of the upper essentially rectangular extending of long side direction Y.At the width X of diaper 1, bonding agent 9 does not arrive the lateral margin of absorbent main body.At the long side direction Y of diaper 1, bonding agent 9 is at least coated in the region between the upper and lower side of side seal portion 7.In addition, region D comprises whole end regions or a part of end regions of elastomeric element 81,82.In the D of this region, bonding agent 9 is coated in the whole region of outer-skin sheet 61 and inner layer piece 62.The situation that " is coated in whole region " and not only comprises comprehensive coating, also comprises for example situation with spiral pattern or Ω word pattern adhesive-applying 9.
As being formed on the junction surface 70a forming in side seal portion 7, the mode of 70b, in present embodiment, adopt ultrasound wave to engage.In the prior art, side seal portion great majority adopt and utilize the welding of heat embossing processing, the adhesion of bonding agent to form, but unlike this, in present embodiment, ultrasound wave engages as necessary method.Ultrasound wave engages and utilizes the frictional heat producing by the ultrasonic vibration of loudspeaker that object is engaged.Therefore, engage and form side seal portion 7 by ultrasound wave, have and can effectively prevent that side seal portion 7 from presenting the advantage of hard sense of touch.Particularly, to reduce costs as object, in the case of using the non-woven fabrics only being formed by the fiber of single resin as the inner layer piece 62 that engages object, because this fiber is subject to thermal capacitance easy damaged, therefore the object that comprises such fiber at joint, adopt ultrasound wave can guarantee sufficient bond strength, and can effectively prevent 7 hardening of side seal portion.
As mentioned above, the formation of side seal portion 7 adopts ultrasound wave to engage, being the fibre plate of inner layer piece 62 for being only made up of the fiber of single resin as the composition surface that engages the A of veutro portion of object and edge, both sides 6a, the 6b of drosal part B, for example, is effective especially in the situation of non-woven fabrics." fiber of single resin " refers to that the resin of the cross-section of fiber consists of uniform fiber.Therefore, the fiber of single resin is not only the fiber being made up of the resin of a kind, also comprises the fiber being made up of the mixture of two kinds of resins.But, do not comprise core-sheath-type composite fibre, the composite fibre such as type (side by side) composite fibre side by side.As the non-woven fabrics only being formed by the fiber of single resin, can enumerate the spun-bonded non-woven fabrics that only formed by fibers such as polypropylene, polyethylene, polypropylene and poly mixture, melt spraying non-woven fabrics, spun-laced nonwoven fabric, hot-wind nonwoven cloth, needle punched non-woven fabrics etc.Particularly, in the case of only using by only comprising non-woven fabrics that polyacrylic fiber forms as inner layer piece 62, it is effective adopting ultrasound wave to engage.
In addition, in present embodiment, be formed with off and on junction surface 70a, 70b along the long side direction Y of diaper 1, therefore compare when forming along the continuous junction surface of the long side direction Y of diaper 1, can reduce by 7 hardening of side seal portion.Form the junction surface 70a, the 70b that form off and on, effective in the case of the inner layer piece 62 on the composition surface as side seal portion 7 is made up of the non-woven fabrics being only made up of the fiber of single resin.
Adopt ultrasound wave to engage while forming off and on junction surface 70a, 70b, have advantages of and in the fiber being located between the junction surface that the long side direction Y of diaper 1 is adjacent, can be subject to hardly the damage that brings due to joint.In addition, there is the sealing strength that can improve side seal portion 7.
Moreover, when the end regions that does not have elastomeric element in side seal portion 7, can reduce the quantity of parts to formation side seal portion 7 that should part.The side seal portion 7 that in addition, can prevent from causing due to the contraction of elastomeric element is folding and angle erects.Thus, can effectively prevent that side seal portion 7 from presenting hard sense of touch.There is not the end regions of elastomeric element in side seal portion 7, the damage being brought by the external force applying or heat etc. when thering is elastomeric element and can not being subject to forming in side seal portion 7.
In the formation of side seal portion 7, use ultrasound wave to engage, there is various advantage as above, while there is bonding agent at the position should ultrasound wave engaging on the other hand, while sometimes joint, can cause oozing out of bonding agent, splicing tpae is carried out to obstacle.Therefore, in the present embodiment, the region that makes to form side seal portion 7 becomes the non-domain of the existence of bonding agent, prevents oozing out of bonding agent when ultrasound wave engages.In addition, by making there is not bonding agent in side seal portion 7, can effectively prevent the degree of side seal portion 7 hardening corresponding with it.
As mentioned above, in the diaper 1 of present embodiment, side seal portion 7 only engages formation by ultrasound wave.But this does not refer in the formation of side seal portion 7 and only adopts ultrasound wave to engage, for example and with ultrasound wave engage and heat embossing also harmless.But, can effectively prevent the viewpoint of side seal portion 7 hardening from guaranteeing sufficient bonding strength when, the formation of side seal portion 7 preferably adopts ultrasound wave to engage.
As previously mentioned, adopt ultrasound wave to engage while forming off and on junction surface 70a, 70b, can improve the sealing strength of side seal portion 7.From making the viewpoint of this more remarkable effect, as shown in Figure 5, in the junction surface row 71 of the long side direction Y configuration along diaper 1, the length that makes the junction surface 70 of long side direction Y is L1, distance between the adjacent junction surface 70 of long side direction Y is while being L2, and the mode that preferably meets following relation with the value of L1/ (L1+L2) configures each junction surface 70.The value of L1/ (L1+L2) is preferably more than 0.1, more preferably more than 0.15, and is preferably below 0.35, more preferably below 0.25.Particularly be preferably more than 0.1 below 0.35, be particularly preferably more than 0.15 below 0.25.This relation, sets up between whole L1 that need to be on the long side direction Y of diaper 1 and L2.But from significantly improving the viewpoint of intensity of side seal portion 7, preferably more than 20% L1 in the group of whole L1 and L2 and the group of L2 meet above-mentioned relation.
From configure multiple junction surfaces 70 in side seal portion 7, and the viewpoint that obtains sufficient intensity sets out, and the length L 1 at the junction surface 70 on long side direction Y is preferred more than 0.2mm, more preferably more than 0.3mm, and preferably below 2mm, more preferably below 1.5mm.Particularly, preferably below the above 2mm of 0.2mm, more preferably below the above 1.5mm of 0.3mm.From obtaining sufficient intensity, and the viewpoint of the balance that occupies at diaper 1 of side seal portion 7 sets out, and the length L 3 at the junction surface 70 on width X is preferred more than 0.5mm, more preferably more than 1mm, and preferably below 10mm, more preferably below 7mm.Particularly, preferably below the above 10mm of 0.5mm, more preferably below the above 7mm of 1mm.
And in Fig. 5, junction surface 70 is the rectangle parallel with width X at long side direction Y, so the value of above-mentioned L1 is certain along width X, but be not the shape of definite value along width X in the value of L1, the value of L1 is defined as this maximum value in the value of L1 at the junction surface 70 of measuring along width X.On the other hand, about the value of L2, be defined as this value minimum in the value of L2 between the junction surface 70 of measuring along width X.About the value of L3, be defined as this maximum value in the value of L3 at the junction surface 70 of measuring along long side direction Y.In addition, in present embodiment, as depicted in figs. 1 and 2, in the time that side seal portion 7 is formed with two row junction surface row 71a, 71b along the long side direction of diaper 1, the value of above-mentioned L1/ (L1+L2) preferably two row junction surface row 71a, 72b at least string meet, more preferably two junction surface row 71a, 71b meet.
From the viewpoint of further raising sealing strength, in the situation that forming multiple junction surface row 71a, 71b, preferably each junction surface 70a, 70b are configured to, in the time that the width X along diaper 1 sees each junction surface row 71a, 71b, between each junction surface row 71a, 71b, produce the position that junction surface 70a, 70b do not overlap each other.Particularly, as shown in Figure 6, preferably each junction surface 70a, 70b are configured between each junction surface row 71a, 71b to junction surface 70a, 70b completely not overlapping each other.
Fig. 7 represents other embodiments of the present invention.Embodiment shown in this figure, the point different from aforementioned embodiments is the scope that is coated with the region D of the bonding agent 9 that is applied to secures resilient member 81,82.In aforesaid embodiment, bonding agent 9 is coated in the position of more depending on the interior side of the width X of diaper 1 than the inner side's of side seal portion 7 lateral margin, but in present embodiment, the side edge part D1 of foreign side and a part for side seal portion 7 of the width X by diaper 1 of the region D of adhesive-applying 9 are overlapping.Particularly, the side edge part D1 of region D is located between the first junction surface row 71a and the second junction surface row 71b that side seal portion 7 forms.Therefore, in the present embodiment, side seal portion 7 comprises the domain of the existence of a part of bonding agent 9.But bonding agent 9 is not present in the whole region of side seal portion 9.On the other hand, the interior side's by width X of region D side edge part D2, is positioned at the position of more leaning on the inner side of width X than the end of elastomeric element 81,82.In the D of the region of adhesive-applying 9, can be in the A of veutro portion and drosal part B adhesive-applying between any one or boths' outer-skin sheet 61 and inner layer piece 62.But, between the inner layer piece 62 of the A of veutro portion and the inner layer piece 62 of drosal part B, preferably there is not bonding agent 9.According to present embodiment, obtain sufficient bond strength by the second junction surface row 71b, be in addition positioned at the bonding agent 9 of side seal portion 7, when discarded, improve side seal portion 7 tearing property aspect favourable.And the domain of the existence of bonding agent 9 does not spread all over the whole region of side seal portion 7, while therefore engaging formation side seal portion 7 by ultrasound wave, oozing out of bonding agent 9 can be inexcessive.So, according to present embodiment, can suppress to engage oozing out of the bonding agent 9 that forms when side seal portion 7 by ultrasound wave, and can obtain the bond strength of side seal portion 7.
Fig. 8 represents another embodiment of the present invention.In present embodiment, outer packaging material is split into the outer packaging material of veutro and the outer packaging material of dorsal part.; in present embodiment, shorts type diaper 1A has: be configured in wearer's veutro the outer packaging material 63 of veutro, be configured in wearer's dorsal part the outer packaging material 64 of dorsal part, set up the absorbent main body 5 that is fixed on the lengthwise on the outer packaging material 63 of veutro and the outer packaging material 64 of dorsal part.In crotch bottom there is not outer packaging material in C.And edge, the both sides 6b of edge, the both sides 6a of the outer packaging material 64 of dorsal part and the outer packaging material 63 of veutro engages in the mode same with embodiment before, form the medicated underpants diaper 1A with a pair of side seal portion.In present embodiment, there is no the point of special instruction, the explanation that before being suitably suitable for, the embodiment of narration relates to.
The constituent material of the Breeches type disposable diaper of the embodiment to above-mentioned explanation describes, and as positive dough sheet 2, back sheet 3, absorber 4, can use respectively the material using in the absorbent commodities such as common disposable diaper, is not particularly limited.As positive dough sheet 2, for example, can use the non-woven fabrics of hydrophilic and liquid permeability etc.As back sheet 3, for example, can use the duplexer of resin molding, resin molding and the non-woven fabrics of opaque liquid or water-repellancy etc.Resin molding also can have poisture-penetrability.Can use the aggregation of the fibers such as pulp fiber (also can for non-woven fabrics) or maintain therein the absorbent core that the granule of superabsorbent polymer forms as absorber 4, the parts that the clad sheet that forms with the thin paper by water penetration or non-woven fabrics is coated etc.
As the outer-skin sheet 61 and the inner layer piece 62 that form outer packaging material 6, the material as long as using in the absorbent commodities such as disposable diaper conventionally, is just not particularly limited.For example, as outer-skin sheet 61 and inner layer piece 62, can use the non-woven fabrics of water-repellancy etc.
As waist elastic members 81, waist elastomeric element 82, leg elastic members 83, conventionally as long as the material using in the absorbent commodities such as disposable diaper is just not particularly limited.For example, can use the thread retractility materials such as polyethylene-alpha olefin copolymer such as comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene.As bonding agent 9, the material as long as using in the absorbent commodities such as disposable diaper conventionally, is just not particularly limited, for example, can use heat molten type bonding agent.
Above based on the present invention has preferred embodiment been described, but the present invention is not subject to the restriction of above-mentioned embodiment.For example, in above-mentioned embodiment, place of side in than the width of the more close diaper 1 of side seal portion 7, the end of the foreign side of the width by diaper 1 of elastomeric element 8 stops, but replace it, elastomeric element 8 can be not yet more stopping by place of side in the width of diaper 1 than side seal portion 7, its end is present in the position of side seal portion 7.In addition, in above-mentioned embodiment, bonding agent 9 is coated on the whole region of the inside and outside synusia 61 of the region D shown in Fig. 4 and inner layer piece 62, but replace it, also can be on waist elastic members 81 and waist elastomeric element 82 direct adhesive-applying 9, waist elastic members 81 and waist elastomeric element 82 are engaged with outer-skin sheet 61 and inner layer piece 62.In this case, bonding agent 9 is partly coated in the position that becomes bonding station of each elastomeric element, will comprehensively be called region D at the each bonding agent being more coated on each elastomeric element by side in the width of diaper 1 than side seal portion 7.
In addition, although be Breeches type disposable diaper, but pants type of the present invention is worn article, can also be applicable to other article, such as the pants type absorptive article such as pants type sanitary napkin, pants type incontinence pad, do not there is sanitary shorts (sanitary shorts), the disposable underclothes etc. of absorbent main body or absorber.
In addition, in the above-described embodiment, each disposes multiple waist elastic members 81 and waist elastomeric element 82, one of them or more than two, can carry out in the whole region of this elastomeric element with the fixing of outer-skin sheet 61 and inner layer piece 62.
In addition, in the above-described embodiment, two row of the first junction surface row 71a and the second junction surface row 71b are classified at the junction surface forming in side seal portion 7 as, replace, and also can only form string junction surface row, or also can form junction surface row more than three row.
In addition, in the above-described embodiment, waist elastomeric element 82 configures in the mode of not crossing absorber 4, but this waist elastomeric element 82 also can cross absorber 4.
In addition, in the above-described embodiment, the junction surface forming in side seal portion 7 is the rectangle with the limit parallel with long side direction with the width of diaper 1, but replace, also can form the junction surface of the shape of the combination in any formation of triangle, del, circle or oval or above-mentioned shape.
About above-mentioned embodiment, the present invention further discloses following pants type and wear article.
<1> pants type is worn article, it has veutro portion, crotch bottom, drosal part, above-mentioned veutro portion, crotch bottom, drosal part have by being positioned near the inner layer piece of wearer's health one side and being positioned at the outer packaging material forming away from the outer-skin sheet of wearer's health one side
Dispose the multiple elastomeric elements that extend at width at the above-mentioned outer packaging material of above-mentioned veutro portion and above-mentioned drosal part, above-mentioned pants type is worn article and is had a pair of side seal portion, this a pair of side seal portion forms overlapped joint the in edge, both sides of the edge, both sides of this veutro portion and this drosal part
Above-mentioned side seal portion carries out ultrasound wave joint to edge, above-mentioned both sides by the long side direction along above-mentioned article to form off and on,
Above-mentioned elastomeric element is being fixed on by bonding agent between above-mentioned outer-skin sheet and above-mentioned inner layer piece on above-mentioned outer-skin sheet and above-mentioned inner layer piece,
Fixing of the above-mentioned elastomeric element being undertaken by above-mentioned bonding agent, is to carry out at two end regions of this elastomeric element,
The region that is coated with above-mentioned bonding agent is positioned at than the more inner side's of lateral margin of the foreign side by width of above-mentioned side seal portion position,
In position between above-mentioned two end regions, above-mentioned elastomeric element and above-mentioned outer-skin sheet and above-mentioned inner layer piece are disengaged state.
Pants type described in the above-mentioned <1> of <2> is worn article,
The region that is coated with above-mentioned bonding agent is positioned at than the square more inner side's of lateral margin by width of above-mentioned side seal portion position.
Pants type described in the above-mentioned <1> of <3> or <2> is worn article,
The end by the foreign side of width of above-mentioned elastomeric element terminates in more wear side in the width of article by pants type than above-mentioned side seal portion and locates.
Pants type in the above-mentioned <1>～<3> of <4> described in any one is worn article,
By off and on multiple junction surfaces that ultrasound wave joint forms being carried out in edge, above-mentioned both sides, configure shape in column along the long side direction of above-mentioned article,
Configure each junction surface, making in the length at the above-mentioned junction surface that makes above-mentioned long side direction is L1, and when the distance between the adjacent above-mentioned junction surface of above-mentioned long side direction is L2, the value of L1/ (L1+L2) is more than 0.1 below 0.35.
Pants type described in the above-mentioned <4> of <5> is worn article,
In each side seal portion, the width that is listed in above-mentioned article at above-mentioned junction surface arranges multiple, and each junction surface is configured between each row, produce in the time seeing along the width of above-mentioned article the position that above-mentioned junction surface does not overlap each other.
Pants type in the above-mentioned <1>～<5> of <6> described in any one is worn article,
Each composition surface of edge, above-mentioned both sides is made up of the non-woven fabrics that only fiber with single resin forms.
Pants type described in the above-mentioned <6> of <7> is worn article,
Above-mentioned fiber only comprises polyacrylic fiber.
Pants type in the above-mentioned <1>～<7> of <8> described in any one is worn article,
Above-mentioned side seal portion is only engaged and is formed by ultrasound wave.
Pants type in the above-mentioned <1>～<8> of <9> described in any one is worn article,
Above-mentioned inner layer piece at above-mentioned outer packaging material disposes the absorbent main body that comprises absorber.
Pants type in the above-mentioned <1>～<9> of <10> described in any one is worn article,
Above-mentioned elastomeric element is waist elastic members and waist elastomeric element.
Pants type in the above-mentioned <1>～<10> of <11> described in any one is worn article,
In above-mentioned side seal portion, above-mentioned bonding agent is non-existence.
Pants type in the above-mentioned <1>～<11> of <12> described in any one is worn article,
The region that has applied above-mentioned bonding agent comprises whole end regions of above-mentioned elastomeric element or the end regions of a part.
Pants type in the above-mentioned <1>～<12> of <13> described in any one is worn article,
Having applied in the region of above-mentioned bonding agent, this adhesive applicating is in the whole region of outer-skin sheet and inner layer piece.
Pants type in the above-mentioned <1>～<12> of <14> described in any one is worn article,
Above-mentioned bonding agent is directly coated on above-mentioned elastomeric element, and this elastomeric element is engaged with above-mentioned outer-skin sheet and above-mentioned inner layer piece.
Pants type in the above-mentioned <1>～<14> of <15> described in any one is worn article,
Above-mentioned outer packaging material is split into the outer packaging material of veutro and the outer packaging material of dorsal part, has and sets up the absorbent main body that is fixed on the lengthwise on the outer packaging material of this veutro and the outer packaging material of this dorsal part.
Pants type in the above-mentioned <1>～<15> of <16> described in any one is worn article,
The length that makes the above-mentioned junction surface of above-mentioned long side direction is L1, when distance between the adjacent above-mentioned junction surface of above-mentioned long side direction is L2, the value of L1/ (L1+L2) is preferably more than 0.1, more preferably more than 0.15, and be preferably below 0.35, more preferably below 0.25, be particularly preferably more than 0.1 below 0.35, be particularly preferably more than 0.15 below 0.25.
Pants type in the above-mentioned <1>～<16> of <17> described in any one is worn article,
While making the length of the above-mentioned bonding part of above-mentioned long side direction be L1, more than L1 is preferably 0.2mm, more preferably more than 0.3mm, and be preferably below 2mm, more preferably, below 1.5mm, be particularly preferably below the above 2mm of 0.2mm, more preferably below the above 1.5mm of 0.3mm.
Pants type in the above-mentioned <1>～<17> of <18> described in any one is worn article,
While making the length at the above-mentioned junction surface of above-mentioned width be L3, more than L3 is preferably 0.5mm, more preferably more than 1mm, and be preferably below 10mm, more preferably, below 7mm, be particularly preferably below the above 10mm of 0.5mm, more preferably below the above 7mm of 1mm.
Pants type in the above-mentioned <1>～<18> of <19> described in any one is worn article,
Be provided with multiple junction surfaces row along above-mentioned width, between the row of each junction surface, on the width of above-mentioned dress article, there is no gap.
Pants type in the above-mentioned <1> of <20>, <3>～<10>, <12>～<19> described in any one is worn article
Side edge part and the side seal portion part by the foreign side of above-mentioned width in region that has applied above-mentioned bonding agent is overlapping.
Pants type in the above-mentioned <1> of <21>, <3>～<10>, <12>～<20> described in any one is worn article
Above-mentioned side seal portion, by off and on the multiple above-mentioned junction surface that ultrasound wave joint forms being carried out in edge, above-mentioned both sides, above-mentioned long side direction along above-mentioned article configures shape in column, the above-mentioned width that is listed in above-mentioned article at this junction surface is provided with multiple, has applied the side edge part by the foreign side of width in region of above-mentioned bonding agent between row at above-mentioned junction surface are listed as with another.
Pants type in the above-mentioned <1>～<4> of <22>, <6>～<20> described in any one is worn article
Above-mentioned side seal portion, by off and on the multiple above-mentioned junction surface that ultrasound wave joint forms being carried out in edge, above-mentioned both sides, configures shape in column along the above-mentioned long side direction of above-mentioned article, and the row at this junction surface only form string.
Pants type in the above-mentioned <1>～<22> of <23> described in any one is worn article,
It is disposable diaper, pants type sanitary napkin or pants type incontinence pad that above-mentioned pants type is worn article.
Pants type in the above-mentioned <1>～<22> of <24> described in any one is worn article,
It is sanitary shorts or the disposable underclothes without absorbent main body or absorber that above-mentioned pants type is worn article.
Embodiment
Below, illustrate in greater detail the present invention by embodiment.But the present invention is not subject to any restriction of the record of following examples.
[embodiment 1]
Make the laminated samples sheet of measuring sealing strength.Overlapping 4 mass area ratios are 17g/m
2spun-bonded non-woven fabrics, carry out the size shown in following table 1 ultrasound wave engage.Spun-bonded non-woven fabrics uses the fiber (material that fiber footpath approximately 15 μ m) form to be only made up of the polypropylene of single resin.It is to use the ultrasonic oscillator of BRANSON company under the condition of 20kHz, to carry out ultrasound wave joint that ultrasound wave engages.Be rectangular shape by engaging the junction surface forming.The length direction that makes the L1 shown in aforesaid Fig. 5 and L2 is that Y-direction is consistent with the CD direction of non-woven fabrics.In addition, making the length direction of L3 is that directions X is consistent with the MD direction of non-woven fabrics.The region that disposes multiple junction surfaces in Y-direction is 100mm, and is arranged in the end 10mm apart from the directions X of non-woven fabrics.The duplexer that has carried out ultrasound wave joint is cut with the length of 30mm in Y-direction, obtain the big or small laminated samples sheet of 3 directions X 50mm, Y-direction 30mm.This operation is also carried out 12 of other making duplexers, adds up to and prepares 36 laminated samples sheets.To these laminated samples sheets, carry out the mensuration of sealing strength shown below, calculate the meansigma methods of the value obtaining.Following table 1 represents its result.
The mensuration > of < sealing strength
For the sample strip obtaining, at the end that there is no combination (minor face), non-woven fabrics is divided into two parts, every part is two non-woven fabrics.By fastening the end that is divided into two parts (chuck) on universal tensile testing machine (ORIENTEC company manufacture, trade name " RTA-100 ").Carry out when fastening, the junction of laminated samples sheet is (chuck spacing is 20mm) between chuck.Then, with draw speed, 300mm/min stretches, and each end of laminated samples sheet is in the opposite direction moved.Measure the peak load while fracture by the stacked sample strip that stretches, it is sealing strength.
[embodiment 2 to 4]
Except make the size at junction surface as shown in table 1, make similarly to Example 1 stacked sample strip.For the laminated samples sheet of making, carry out similarly to Example 1 the mensuration of sealing strength.Table 1 represents the meansigma methods of the sealing strength obtaining.
[comparative example 1]
At first and adhesive-applying between second, between the 3rd and the 4th of four non-woven fabrics, make similarly to Example 2 in addition stacked sample strip.Bonding agent, use coating machine by the bonding agent of heat molten type (phenylethylene) with per unit area weight 15g/m
2be coated in than the Geng Guang region, region that forms junction surface (on directions X, from end to directions X in side go to the region till 30mm, continuous in the Y direction), at the formation junction surface, region of coating.For the laminated samples sheet of making, measure similarly to Example 1 sealing strength.Table 1 represents the meansigma methods of the sealing strength obtaining.
Table 1
From the result shown in table 1, the laminated samples sheet of embodiment 1 to 4, compares with the laminated samples sheet of comparative example 1, has increased substantially sealing strength, wears the side seal portion of article in the case of being applicable to pants type, and judgement can obtain sufficient intensity.In addition, be confirmed by multiple test participants, about embodiment 1 to 4, its junction surface softness, its hardness is difficult to discover, and on the other hand, about comparative example 1, although junction surface is soft, is in a ratio of hard sense of touch with embodiment 1 to 4.
Industrial utilizability
According to the present invention, owing to using ultrasound wave to carry out the joint of side seal portion, can effectively prevent that thus side seal portion from becoming hard skin sense of touch.And, be not to form and applied the region of bonding agent in the whole region of side seal portion, so can effectively prevent from thus becoming hard skin sense of touch.
Claims (9)
1. pants type is worn article, it is characterized in that:
Described pants type is worn article and is had by being positioned near the inner layer piece of wearer's health one side and being positioned at the outer packaging material forming away from the outer-skin sheet of wearer's health one side, and described pants type is worn article and comprised veutro portion, crotch bottom and drosal part,
Dispose the multiple elastomeric elements that extend at width at the described outer packaging material of described veutro portion and described drosal part, described pants type is worn article and is had a pair of side seal portion that overlapped joint the in edge, both sides of the edge, both sides of this veutro portion and this drosal part formed
Described side seal portion carries out ultrasound wave joint to edge, described both sides by the long side direction along described article to form off and on,
Described elastomeric element is being fixed on by bonding agent between described outer-skin sheet and described inner layer piece on described outer-skin sheet and described inner layer piece,
Fixing of the described elastomeric element being undertaken by described bonding agent, is to carry out at two end regions of this elastomeric element,
The region that has applied described bonding agent is positioned at than the more inner side's of lateral margin of the foreign side by width of described side seal portion position,
Position between described two end regions, described elastomeric element and described outer-skin sheet and described inner layer piece are disengaged state.
2. pants type as claimed in claim 1 is worn article, it is characterized in that:
The region that has applied described bonding agent is positioned at than the square more inner side's of lateral margin by width of described side seal portion position.
3. pants type as claimed in claim 1 or 2 is worn article, it is characterized in that:
The end by the foreign side of width of described elastomeric element terminates in than described side seal portion more by place of side in the width of described dress article.
4. the pants type as described in any one in claim 1～3 is worn article, it is characterized in that:
Multiple junction surfaces of off and on ultrasound wave joint being carried out in edge, described both sides and form, configure shape in column along the long side direction of described article,
The length at the described junction surface of described long side direction is L1 in season, distance between the adjacent described junction surface of described long side direction is while being L2, and the value that each junction surface is configured to L1/ (L1+L2) is more than 0.1 below 0.35.
5. pants type as claimed in claim 4 is worn article, it is characterized in that:
In each side seal portion, the width that is listed in described article at described junction surface is provided with multiple, and each junction surface is configured between each row, produce in the time seeing along the width of described article the position that described junction surface does not overlap each other.
6. the pants type as described in any one in claim 1～5 is worn article, it is characterized in that:
Each composition surface of edge, described both sides is made up of the non-woven fabrics that only fiber with single resin forms.
7. pants type as claimed in claim 6 is worn article, it is characterized in that:
Described fiber is only to comprise polyacrylic fiber.
8. the pants type as described in any one in claim 1～7 is worn article, it is characterized in that:
Described side seal portion is only engaged and is formed by ultrasound wave.
9. the pants type as described in any one in claim 1～8 is worn article, it is characterized in that:
On the described inner layer piece of described outer packaging material, dispose the absorbent main body that comprises absorber.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-278025 | 2011-12-20 | ||
| JP2011278025 | 2011-12-20 | ||
| JP2012-273908 | 2012-12-14 | ||
| JP2012273908A JP6103752B2 (en) | 2011-12-20 | 2012-12-14 | Pants-type wearing article |
| PCT/JP2012/082760 WO2013094591A1 (en) | 2011-12-20 | 2012-12-18 | Underwear-type worn article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104010612A true CN104010612A (en) | 2014-08-27 |
| CN104010612B CN104010612B (en) | 2016-06-15 |
Family
ID=48668480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280063760.6A Active CN104010612B (en) | 2011-12-20 | 2012-12-18 | Pant-type wearable article |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6103752B2 (en) |
| CN (1) | CN104010612B (en) |
| WO (1) | WO2013094591A1 (en) |
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|---|---|---|---|---|
| CN106999318A (en) * | 2014-12-16 | 2017-08-01 | 花王株式会社 | The manufacture device and manufacture method of Breeches type disposable diaper |
| CN107970091A (en) * | 2016-10-21 | 2018-05-01 | 大王制纸株式会社 | Breeches type disposable diaper |
| CN115551451A (en) * | 2020-05-28 | 2022-12-30 | 尤妮佳股份有限公司 | Underpants-like absorbent article |
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| JP6189628B2 (en) | 2013-05-13 | 2017-08-30 | 花王株式会社 | Pants-type absorbent article |
| JP6207897B2 (en) * | 2013-06-28 | 2017-10-04 | 花王株式会社 | Pants-type disposable diaper |
| JP5828463B2 (en) * | 2013-06-28 | 2015-12-09 | 花王株式会社 | Pants-type disposable diapers |
| BR112016005766B1 (en) * | 2013-10-11 | 2022-02-22 | Unicharm Corporation | DISPOSABLE PANTS TYPE CLOTHING ITEM |
| JP5899255B2 (en) * | 2014-02-28 | 2016-04-06 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
| JP5899256B2 (en) * | 2014-02-28 | 2016-04-06 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
| JP5953331B2 (en) * | 2014-02-28 | 2016-07-20 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
| JP5919319B2 (en) * | 2014-02-28 | 2016-05-18 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
| JP5879379B2 (en) * | 2014-03-26 | 2016-03-08 | ユニ・チャーム株式会社 | Absorbent article manufacturing equipment |
| JP2015195801A (en) * | 2014-03-31 | 2015-11-09 | ユニ・チャーム株式会社 | Underpants type wearable article |
| JP6393503B2 (en) * | 2014-04-10 | 2018-09-19 | ユニ・チャーム株式会社 | Pants-type absorbent article |
| CN105266971A (en) * | 2014-07-12 | 2016-01-27 | 叶正华 | Adult paper diaper |
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| JP5970575B2 (en) * | 2015-02-20 | 2016-08-17 | ユニ・チャーム株式会社 | Absorbent article manufacturing method |
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| JP2019136432A (en) * | 2018-02-15 | 2019-08-22 | 株式会社リブドゥコーポレーション | Disposable absorbent article |
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| JP2003024382A (en) * | 2001-07-13 | 2003-01-28 | Oji Paper Co Ltd | Pants type throw-away diaper |
| CN101180021A (en) * | 2005-05-20 | 2008-05-14 | 宝洁公司 | Multi-functional training garment |
| JP2011234847A (en) * | 2010-05-10 | 2011-11-24 | Kao Corp | Shorts type absorbent article |
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| CN106999318A (en) * | 2014-12-16 | 2017-08-01 | 花王株式会社 | The manufacture device and manufacture method of Breeches type disposable diaper |
| CN107970091A (en) * | 2016-10-21 | 2018-05-01 | 大王制纸株式会社 | Breeches type disposable diaper |
| CN115551451A (en) * | 2020-05-28 | 2022-12-30 | 尤妮佳股份有限公司 | Underpants-like absorbent article |
| CN115551451B (en) * | 2020-05-28 | 2024-03-26 | 尤妮佳股份有限公司 | Underpants-shaped absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104010612B (en) | 2016-06-15 |
| JP6103752B2 (en) | 2017-03-29 |
| JP2013146549A (en) | 2013-08-01 |
| WO2013094591A1 (en) | 2013-06-27 |
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