CN1846657A - Absorbent article - Google Patents

Abstract

The invention relates to an adsorption object (1), which comprises an adsorption main body (11) and a couple of wings (2, 2) extending out from two sides at the length direction of main body (11), wherein said wing (2) is made from one sheet of flexible material (4).

Description

Absorbent commodity

Technical field

The present invention relates to absorbent commodity, specifically, relate to the absorbent commodities such as sanitary napkin that have alar part.

Background technology

In the past, the sanitary napkin with alar part was widely known by the people.This sanitary napkin is formed by absorbent main body and a pair of alar part that is arranged at the both sides of the edge of its length direction.

Alar part one surface in the above-mentioned this sanitary napkin is provided with adhesive layer.Therefore, when using sanitary towel, alar part bends along the edge part of the crotch portion of underwears such as medicated underpants (the following underwear that also only is called), and is fixed in the outer surface of this underwear by this adhesive layer.

In addition, also know a kind of sanitary napkin that forms side leakage barriers and alar part by a slice non-woven fabrics.For example, in Japanese Patent Application Laid-Open 2002-272786 communique, " a kind of sanitary napkin; in the both sides of the front of this sanitary napkin one side; along its length and on the almost total length of sanitary napkin the side non-woven fabrics is being set has respectively formed alar part by a part that makes described side non-woven fabrics towards extending laterally " disclosed.

But, in the sanitary napkin of Japanese Patent Application Laid-Open 2002-272786 communique record, when turning back alar part, alar part is not enough to the fitness of underwear curved shape, and the sense of touch of alar part and dress comfort and also do not claim fully, wish the further sense of touch and the wearing comfort of raising alar part.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of absorbent commodity, its alar part is good to the fitness of underwear curved shape, and the sense of touch of alar part and to dress comfort good.

The present invention has realized above-mentioned purpose by following absorbent commodity is provided, it is a pair of alar part that absorbent commodity of the present invention has absorbent main body and stretches out from the both sides of this absorbent main body length direction, wherein, described alar part is formed by a slice Stretchable sheet.

Description of drawings

Fig. 1 is the axonometric chart of the 1st embodiment of sanitary napkin of the present invention.

Fig. 2 is the X-X line profile among Fig. 1.

Fig. 3 is that the Stretchable sheet that will form side leakage barriers among Fig. 2 and alar part is that the part of non-woven fabrics is amplified the profile of expression.

Fig. 4 is the profile (corresponding to Fig. 2) of another embodiment of sanitary napkin of the present invention.

Fig. 5 (a)～5 (c) be make the 1st embodiment sanitary napkin a manufacture method want portion's schematic plan view.Fig. 5 (a) is the figure of the manufacturing process of expression continuous member, and Fig. 5 (b) is the figure that expression engages operation, and Fig. 5 (c) is the figure that operation is cut off in expression.

Fig. 6 is the plane graph as the sanitary napkin of the 2nd embodiment of the present invention.

The partial plan layout of Fig. 7 state that to be expression turn back the alar part in the sanitary napkin shown in Figure 6 to the outside of width.

Fig. 8 is the ground plan of sanitary napkin shown in Figure 6.

Fig. 9 is the IV-IV generalized section shown in Fig. 6.

Figure 10 is the V-V generalized section shown in Fig. 6.

Figure 11 (a)～Figure 11 (c) is the sketch map of the formation method of alar part in the sanitary napkin of the 3rd embodiment and back flap.

Figure 12 is to cut off the profile (corresponding to the figure of Fig. 9) that line cuts off by the mode of alar part with the sanitary napkin of the 3rd embodiment.

Figure 13 is to cut off the profile (corresponding to the figure of Figure 10) that line cuts off by the mode of back flap with the sanitary napkin of the 4th embodiment.

The specific embodiment

Below, with reference to Fig. 1～Fig. 3 a preferred embodiment (the 1st embodiment) of absorbent commodity of the present invention is described.

As the sanitary napkin 1 of the 1st embodiment of a preferred embodiment of absorbent commodity of the present invention as shown in Figures 1 and 2, have absorbent main body 11 of the elongate shape of being essentially and a pair of alar part 2,2 that stretches out from the both sides of absorbent main body 11 length directions, described absorbent main body 11 has the absorbed layer 12 of liquid retainability and the back layer 13 of liquid impermeability.Both sides at the length direction of skin contact surface one side of absorbent main body 11 are provided with a pair of side leakage barriers 3,3, and this a pair of side leakage barriers 3,3 is respectively along the length direction setting of this absorbent main body 11 and cover front one side of absorbed layer 12.Alar part 2 and side leakage barriers 3 are formed by a slice Stretchable sheet 4.

In addition, absorbed layer 12 is made of the face sheet 14 of liquid permeability and the absorber 15 of liquid retainability.Back layer 13 is made of the back-sheet 13 of liquid impermeability.Back-sheet in the present embodiment is exactly a back layer itself, so use the symbol identical with this back layer (13) expression.

As shown in Figure 2, absorber 15 is between face sheet 14 and back-sheet 13.Face sheet 14 and back-sheet 13 are bonded with each other at the both ends of length direction, have formed sealing.

As shown in Figure 1, be provided with leakproof groove 16 in the front of absorbent main body 11 side.This leakproof groove 16 is formed by a pair of the 1st embossing groove that extends in the longitudinal direction and the both ends of the length direction that is connected in the 1st embossing groove and 2 layer of the 2nd circular-arc embossing groove that extends on width.In addition, a pair of above-mentioned the 1st embossing groove that extends in the longitudinal direction has the shape of tightening up to the inside respectively.By this leakproof groove 16, face sheet 14 and absorber 15 engage.

In the sanitary napkin 1 of the present embodiment, the Stretchable sheet 4 that forms alar part 2 and side leakage barriers 3 is the non-woven fabrics with retractility.So-called retractility in this description is meant under the pulling force of hands to be stretched, and when this pulling force disappeared, non-woven fabrics shrank the character that returns to original state.For retractility, preferably have under light tensile situation with have gentle hands, after pulling force disappears, can return and return to the roughly elasticity of original state.

The Stretchable sheet 4 that uses in the sanitary napkin 1 of the present embodiment can be in the face of Stretchable sheet 4 carries out elastic telescopic on all directions of 360 °.Wherein said " direction " comprise absorbent main body 11 length direction (identical) with the length direction of sanitary napkin 1 and with this both direction of the vertical direction of this direction (alar part 2 stretch out direction).

Sanitary napkin 1 with regard to the present embodiment further specifies below.A pair of side leakage barriers 3,3 forms the shape of lengthwise, and as shown in Figure 1, engages with absorbent main body 11 respectively at the both ends of the length direction of absorbent main body 11.

In addition, as shown in Figure 1, in the inside edge portion of the width of a pair of side leakage barriers 3,3, the position of the both sides of 2 layers of the 2nd circular-arc embossing groove that the both ends broad ways of the length direction of leakproof groove 16 is extended is provided with the 1st embossed portion B1, B1 ...Side leakage barriers 3 engages with absorbent main body 11 by the 1st embossed portion B1.

Moreover as shown in Figure 1, in the inside edge portion of the width of a pair of side leakage barriers 3,3, the position between the both ends of the length direction of the both ends of the length direction of leakproof groove 16 and absorbent main body 11 is provided with the 2nd embossed portion B2, B2 ...Side leakage barriers 3 also engages with absorbent main body 11 by the 2nd embossed portion B2.

As shown in Figure 1, near the zone of a pair of side leakage barriers 3,3 both sides of the edge of the length direction of absorbent main body 11 engages with face sheet 14 and back-sheet 13 respectively, forms junction surface 5,5.

Junction surface 5,5 has the shape that the central part at length direction tightens up respectively to the inside.When junction surface 5,5 has this shape, be connected a pair of alar part 2,2 that is provided with them the time, easily and the edge part of this panty crotch match (fit) along the edge part bending of panty crotch.Wherein, junction surface 5 can be by bonding formation of hot-melt adhesive etc., also can form by the fusion adhesion of heat seal etc.

A pair of side leakage barriers 3,3 is formed by rubber-like Stretchable sheet 4.A pair of side leakage barriers 3,3 is because its contractility, thus under naturalness just as illustrated in figures 1 and 2, inside edge portion one side is separately separated with the skin contact surface between the 1st embossed portion B1, B1.Here, the skin contact surface is meant skin contact surface one side of face sheet 2.In addition, so-called naturalness is meant that gravity external force does not in addition act on the state (following yet identical) of sanitary napkin 1.

In addition, as shown in Figure 1, sanitary napkin under the naturalness 1 is because the contractility of a pair of side leakage barriers 3,3 and in the longitudinal direction towards the skin contact surface one lateral bending song of this sanitary napkin 1.

As shown in Figure 2, side leakage barriers 3 the inboard of width be configured to always absorber main body 15 above the position.And the part of the formation side leakage barriers 3 in the Stretchable sheet 4 towards the outside of width, is gone back to absorbed layer 12 1 sides in the mode that forms circular partially free end 31 respectively, and is contacted with back-sheet 13 thus.At the junction surface 5, the fold back portion of side leakage barriers 3 engages with the Stretchable sheet 4 and the back-sheet 13 of front one side of the formation side leakage barriers 3 relative with this part.

The a pair of alar part 2,2 of the sanitary napkin 1 of the present embodiment is formed by a slice Stretchable sheet 4 together with the side leakage barriers 3,3 of the same side of length direction respectively.A pair of alar part 2,2 stretches out laterally from the middle section of the outer ledge portion of the length direction of a pair of this side leakage barriers 3,3 respectively.

A slice Stretchable sheet 4 is that the border is divided into side leakage barriers 3 and alar part 2 with above-mentioned junction surface 5.

In addition, a surface that constitutes the Stretchable sheet 4 of a pair of alar part 2,2 is provided with adhesive layer (not diagram), and this adhesive layer is used for the alar part 2 that the edge part along panty crotch bends is fixed in the outer surface of this underwear.

The length of a pair of side leakage barriers 3,3 of the sanitary napkin 1 of the present embodiment is crossed over the part relative with the excretory portion of wearer at least and is got final product, and preferably crosses over the total length of the length direction of absorbent main body 11.

In a pair of side leakage barriers 3,3 of the sanitary napkin 1 of the present embodiment, the 1st embossed portion B1, B1 ... and the distance between the length direction ora terminalis is preferably 50～150mm respectively under the naturalness of sanitary towel 1.The 2nd embossed portion B2, B2 ... be formed on the position apart from the length direction ora terminalis 15～20mm on its extended line.

As the 1st embossed portion B1, B1 ... and the 2nd embossed portion B2, B2 ... as shown in Figure 1 to put under the fixed situation, also can improve the side leak preventing effect of the place ahead sidepiece and/or rear sidepiece between the 1st embossed portion B1-the 2nd embossed portion B2 respectively by the contractility of Stretchable sheet 4.In addition, on the length direction of sanitary napkin 1, owing to do not have the 1st embossed portion B1 in the zone of alar part 2, so the erecting property of the inboard of side leakage barriers 3 is good.

In the other side leakage barriers 3 of the side of the alar part 2 of the sanitary napkin 1 of the present embodiment, with the vertical direction of length direction on, junction surface (stiff end) 5 that records along the front of side leakage barriers 3 and the length between the free end 31 are preferably 5～25mm.

In addition, in the other side leakage barriers 3 of the side of alar part 2, with the vertical direction of length direction on, the side leakage barriers 3 that records along the front of side leakage barriers 3 and the length of absorber 15 overlaids part are preferably 0～20mm.

The length of passing through the part that junction surface 5,5 is connected with a pair of side leakage barriers 3,3 of a pair of alar part 2,2 of the sanitary napkin 1 of the present embodiment, total length with respect to the both sides of the edge of the length direction of absorbent main body 11 is preferably 50～100% respectively, and more preferably 70～100%.

Forming the alar part 2 of sanitary napkin 1 and a slice Stretchable sheet 4 of side leakage barriers 3 in the present embodiment is formed by the non-woven fabrics that contains curling crimpiness fiber and hot-melt-bondable fiber.And, consider that from the viewpoint of anti-leakage Stretchable sheet 4 preferably has water proofing property.

The preferred material of the Stretchable sheet 4 in the present embodiment be above-mentioned non-woven fabrics as shown in Figure 3, by the 1st fibrous layer 6 of the hot-melt-bondable fiber that contains curling crimpiness fiber and do not curl and do not contain this crimpiness fiber or contain than the 1st fibrous layer 6 more the 2nd fibrous layer 7 of this crimpiness fiber of low content constitute.

Heat fusing is bonding partly with mutual stacked state for the 1st fibrous layer 6 and the 2nd fibrous layer 7.Many heat fusing bonding parts 8 on above-mentioned non-woven fabrics, have been formed thus.The 2nd fibrous layer 7 is by constituting with identical fiber or the different types of fiber of hot-melt-bondable fiber in the 1st fibrous layer 6.

Heat fusing bonding part 8 is by the 1st stacked fibrous layer 6 and the 2nd fibrous layer 7 being implemented heat embossings or partial heating pressurized treatments such as ultrasonic wave embossed forms.

The 1st fibrous layer 6 has formed the back side of alar part 2 and side leakage barriers 3.The 2nd fibrous layer 7 has formed the front of alar part 2 and side leakage barriers 3.In addition, in the reflex part of side leakage barriers 3, the above-mentioned back side is meant the face of the inboard of above-mentioned reflex part, and above-mentioned front is meant the face in the outside of this reflex part.

The above-mentioned crimpiness fiber that contains in the above-mentioned non-woven fabrics is the fiber with the character that himself can curl by predetermined processing.Under the state of above-mentioned crimpiness fiber in alar part 2 that is contained in sanitary napkin 1 and side leakage barriers 3, curling has appearred at least a portion fiber.In addition, the crimpiness fiber begins not fusion in fact under temperature or the lower temperature in the fusion of the hot-melt-bondable fiber that is used in combination.As above-mentioned crimpiness fiber, preferred use is made of thermoplastic, polymeric materials and can shows spiral helicine curling potential crimping property fiber by heat treatment.

The potential crimping property fiber is the fiber with following character: before heating, can similarly handle with the fiber that non-woven fabrics is in the past used, and show spiral helicine curling and contraction by the heating under the predetermined temperature.If use the potential crimping property fiber, the 1st fibrolaminar thermal contraction in the time of then can realizing the non-woven fabrics manufacturing simultaneously and the elastic extension (elastomeric behavior) after the contraction.

The potential crimping property fiber is by being that the eccentric core-sheath-type composite fibre or the parallel composite fiber of composition constitutes with 2 kinds of different thermoplastic, polymeric materials of shrinkage factor for example.As the example, can list the potential crimping property fiber of putting down in writing in the flat 9-296325 communique of Japanese Patent Application Laid-Open and No. 2759331 description of Japan Patent.As thermoplastic, polymeric materials, can list polyester such as polyolefin such as polyethylene and polypropylene, polyethylene terephthalate, polyamide etc.

The above-mentioned hot-melt-bondable fiber that contains in the above-mentioned non-woven fabrics is meant by being heated to predetermined temperature it can is its melt surface at least, by its fusion and curing and can make the adherent fiber of heat fusing between the fiber.

Above-mentioned heat fusing bonding part 8 in the present embodiment is the 1st fibrous layer 6 and the 2nd fibrous layer 7 by the fusion of the hot-melt-bondable fiber that contains in the 1st fibrous layer 6 and/or the 2nd fibrous layer 7 and curing and the part that becomes one on thickness direction.Heat fusing bonding part 8 by implement heat embossing, partial heating pressurized treatments such as ultrasonic wave embossed forms.

In addition, adopt the non-woven fabrics that constitutes by single fibrous layer to constitute the heat fusing bonding part of alar part 2 and side leakage barriers 3, by this fibrous layer being implemented heat embossing or partial heating pressurized treatments such as ultrasonic wave embossed forms.This heat fusing bonding part is by fusion and curing and the adherent part of heat fusing between the hot-melt-bondable fiber in this fibrous layer.

As the hot-melt-bondable fiber that contains in the above-mentioned non-woven fabrics (the 1st fibrous layer and/or the 2nd fibrous layer), the preferred fiber that constitutes by thermoplastic, polymeric materials that uses.As thermoplastic, polymeric materials, can list polyester such as polyolefin such as polyethylene and polypropylene, polyethylene terephthalate, polyamide etc.In addition, also can use core-sheath-type composite fibre that constitutes (particularly concentric type) or parallel composite fiber by these thermoplastic, polymeric materials.

The above-mentioned non-woven fabrics that forms Stretchable sheet 4 forms according to following mode.The stacked crimpiness fiber of admixture and the 1st fibrous layer and the 2nd fibrous layer of hot-melt-bondable fiber of containing, heat fusing is bonding partly by partial heating pressurized treatments to make both.In the adherent while of above-mentioned heat fusing or afterwards, make the 1st fibrous layer thermal contraction by heat treatment (hot blast processing etc.).The 1st fibrolaminar thermal contraction is by above-mentioned heat treatment the crimpiness fiber crimp in the 1st fibrous layer to be produced.

As constitute respectively heat fusing before bonding the 1st fibrous layer and the form of the 2nd fibrolaminar fiber assembly (fiber aggregate), for example can list non-woven fabrics that fleece that (1) is formed by combing method and (2) form by the heat fusing Method for bonding, by current interweave non-woven fabrics that method forms, the non-woven fabrics that forms by needle point method, the non-woven fabrics that forms by the solvent welding method, the non-woven fabrics that forms by spun-bond process, the non-woven fabrics that formed by meltblown etc. is by the non-woven fabrics of various method for makings manufacturings.

The fleece that is formed by combing method is meant the fiber assembly of the state before the non-woven fabricsization.Promptly the fleece that is formed by combing method is the state that is in the post processing that does not also put on the carding fiber net that uses when making non-woven fabrics, for example also not implementing the heating and melting adhesion process of hot blast method and calendering method, is the fiber assembly that is between the fiber state that loosely extremely twines.

When in the 1st fibrous layer and/or the 2nd fibrous layer, using the fleece that forms by combing method, make the 1st fibrous layer and adherent while of the 2nd fibrous layer heat fusing, or make its heat fusing bonding after, make between the fiber in the 1st fibrous layer and/or the 2nd fibrous layer heat fusing bonding or bonding or it is mechanically interweaved with bonding agent (adhesive material).

In the 1st fibrous layer and/or the 2nd fibrous layer, except above-mentioned fiber, can also sneak into for example hygroscopicity fibres such as artificial silk, cotton, hydrophiling acrylic fiber.

The elastic extension of above-mentioned non-woven fabrics also displays by following manner except the elasticity that loop construction produced of curling crimpiness fiber: the hot-melt-bondable fibrillar meshwork structure becomes the structure of contraction and demonstrates elastic reaction by the crimpiness fiber that curls.

Promptly crimpiness fiber in the 1st fibrous layer and hot-melt-bondable fiber are configured to admixture, in the manufacturing process of non-woven fabrics, mutually heat fusing is bonding and form network structure between the hot-melt-bondable fiber, and a part that constitutes the fiber of this network structure simultaneously is included in the loop construction of the crimpiness fiber that curls.In this network structure, because many hot-melt-bondable fibers are included in the loop construction, so this network structure is shunk, network structure self demonstrates the elasticity function.When the masterpiece that will extend was used for network structure, coil-like fiber showed its coil diameter and becomes big, or the trend of the length of coil elongation, and with the disappearance of putting forth effort, coil-like fiber is got back to former state, thereby network structure is shunk.

Consider from the viewpoint that forms the network structure that can show elastic reaction, in the above-mentioned non-woven fabrics, the above-mentioned hot-melt-bondable fiber of the 1st fibrous layer 6 preferably contains 5～70 weight %, especially preferably contain 20～50 weight %, above-mentioned crimpiness fiber preferably contains 30～95 weight %, especially preferably contains 50～95 weight %.In addition, both ratios (crimpiness fiber/hot-melt-bondable fiber, weight ratio) are preferably 0.3～20, are preferably 0.8～5 especially.In addition, the amount of crimpiness fiber is meant the amount that the crimpiness fiber that curls and curling crimpiness fiber are not added differentiation.

In addition, in the 2nd fibrous layer, preferably contain for example identical or different hot-melt-bondable fiber of the hot-melt-bondable fiber with in the 1st fibrous layer about 40～100 weight %.The crimpiness fiber that also can contain in addition, some amounts (for example 5～20 weight %) in the 2nd fibrous layer.

In the 2nd above-mentioned fibrous layer 7, the position beyond the heat fusing bonding part 8 has formed the protrusion 9,9 to a surperficial side projection ..., by having protrusion 9,9 ... and can obtain good sense of touch.

The face sheet 14 of the sanitary napkin 1 of the present embodiment, back-sheet 13, absorber 15 and above-mentioned adhesive layer can not have the special employed various materials in each leisure absorbent commodities such as sanitary napkin in the past that restrictedly use.For example, face sheet 14 can be the non-woven fabrics that obtains of various method for makings or the material that the resin film perforate is had the liquid permeability.

According to the sanitary napkin 1 of the present embodiment, the free end 31,31 of a pair of side leakage barriers 3,3 is inclined to one side circle, and is formed by the above-mentioned non-woven fabrics as above-mentioned Stretchable sheet 4.Therefore, sanitary towel has good sense of touch, dresses comfort and is improved.

In addition, a pair of alar part 2,2 is formed by the Stretchable sheet 4 with retractility.Therefore, by using the Stretchable sheet 4 of fiber for example along the length direction orientation of sanitary napkin 1, also can form " on the length direction of sanitary napkin 1, have draftability, and obtained the alar part 2 that suppresses " in the draftability of the width of sanitary napkin 1.

Form alar part 2 as described above, cause on underwear, dressing sanitary napkin 1 that then it is crooked and because of movable when causing distortion (acting on the shearing force of the width sidepiece of sanitary napkin 1), alar part 2 can stretch along its length, thereby the various distortion of abirritation on alar part (sidepiece of sanitary napkin 1) 2, simultaneously when being fixed in alar part 2 on the underwear, owing to suppressed elongation, be fixed up easily.

Other embodiment with regard to absorbent commodity of the present invention describes.In the sanitary napkin 1 of other embodiment, as shown in Figure 4, a pair of side leakage barriers 3,3 is not provided with fold back portion in the inboard of width separately, and their end has formed free end 31,31 respectively.In others, also can suit to be suitable for the above-mentioned explanation that the 1st embodiment shown in Figure 1 is described in detail.In addition, in Fig. 4, the parts identical with Fig. 2 are represented with same-sign.

Moreover the end of the width inboard of a pair of side leakage barriers 3,3 is to have formed free end 31,31 in the 1st embodiment shown in Figure 1, but in the present invention, described end also can engage and join to always inboard ora terminalis with face sheet 14.

Below, describe with reference to Fig. 5 (a)～Fig. 5 (c) with regard to a manufacture method of above-mentioned sanitary napkin 1.

Shown in Fig. 5 (a)～Fig. 5 (c), this manufacture method comprises: cut off the grey cloth 41 of Stretchable sheet and periodically formed the parts 44 of the strip of alar part 2, with the parts 44 of a pair of this strip respectively along under the tensile state of the length direction of sanitary towel 1, the mode of stretching out from the both sides of the edge portion of the length direction of skin contact surface one side of absorbent main body continuum 17 (absorbent main body 11) according to alar part 2 is fixed on this absorbent main body continuum 17, cuts into one sanitary towel 1 then.

Further explanation, according to this manufacture method, the mode of both sides of length direction that the parts 44 of strip is covered skin contact surface one side of absorbent main body continuum 17 according to the part beyond its alar part 2 is fixed on this absorbent main body continuum 17.And, bring into play function as side leakage barriers 3 by the part cover part beyond the alar part in the parts 44 of strip 2.

More specifically, this manufacture method has following operation: the grey cloth 41 by Stretchable sheet is made the continuous member 44 (parts of strip, it has many alar part formation portions 42 that are used to form the side leakage barriers formation portion 43 of side leakage barriers 3 and are used to form alar part 2 respectively, the parts of this strip form in side leakage barriers formation portion 43 continuously, and discontinuous formation in alar part formation portion 42) manufacturing process; A pair of this continuous member 44 is fixed in the joint operation of both sides of length direction of the absorbent main body continuum 17 of other manufacturing respectively under extended state; And will cut into the cut-out operation of one sanitary napkin 1 as the continuum of the sanitary napkin 1 of absorbent commodity.

In the manufacturing process of above-mentioned continuous member 44, shown in Fig. 5 (a) and Fig. 5 (b),, make it continuous and discontinuous in alar part formation portion 42 in side leakage barriers formation portion 43 with grey cloth 41 cut-outs of Stretchable sheet.Like this, just formed a pair of continuous member 44,44 that has many side leakage barriers formation portions 42 and alar part formation portion 43 respectively.

Above-mentioned side leakage barriers formation portion 43 is the parts that form side leakage barriers 3 in the continuous member 44.Above-mentioned alar part formation portion 42 is the parts that form alar part 2 in the continuous member 44.Shearing device as the grey cloth 41 of Stretchable sheet can use rotary knife cutter (rotary cutter) etc. to be used for the shearing device of the cut-out of absorbent commodity in the past.

With side leakage barriers formation portion 43,43 ... the lateral edge portion of length direction locate to go back to one rear flank, the back side in the line 18,18 that turns back (with reference to Fig. 5 (b)) respectively, a pair of continuous member 44,44 that adopts said method to form is sent to the joint operation that continuous member 44 and absorbent main body continuum 17 are engaged.

In above-mentioned joint operation, shown in the left side of Fig. 5 (c), a pair of continuous member 44,44 is stretched along its length.Like this, a pair of side leakage barriers formation portion 43,43 is stretched along its length.Side leakage barriers 3 is fit and do not have a sense of discomfort when dressing sanitary napkin 1, and side leakage barriers 3 and skin contact surface separate with the viewpoint that improves leak preventing effect and set out, continuous member 44 tensile degree preferably, make length after the stretching be before stretching length 105～140%.

Make continuous member 44 tensile means can use known method, but preferably make its elongation by the tension force (tension) of in manufacturing process, controlling side leakage barriers formation portion 43.

Keeping the side leakage barriers formation portion 43,43 of continuous member 44 ... extended state the time, side leakage barriers formation portion 43,43 with a pair of continuous member 44,44 ... such shown in the left side of Fig. 5 (c), joint is fixed in the both sides of length direction of the absorbent main body continuum 17 of other manufacturing, specifically, joint is fixed near the zone the both sides of the edge, forms the continuum of sanitary napkin 1.

Wherein, as joint method, can be to use the adhering method of bonding agents such as hot-melt adhesive, also can be melt bonded methods such as heat seal.In addition, the junction surface 5 that forms by above-mentioned joint forms the shape of tightening up to the inside respectively at the central part of the length direction of each sanitary napkin 1.Also have,, set in advance as shown in Figure 1 leakproof groove 16 (not diagram) with predetermined interval in the front of absorbent main body continuum 17 side.

Then, on the continuum of the above-mentioned sanitary napkin 1 that forms as mentioned above, along whole width upper and lower surface is engaged, form sealing with predetermined space corresponding to the length of sanitary napkin 1.

Then, the inside edge portion at the width of a pair of side leakage barriers formation portion 43,43 preferably in the position of the above-mentioned sealing ora terminalis 20～60mm of distance, is provided with the 1st embossed portion B1 of 4 places, B1 respectively ...In addition, the end of the length direction on its extended line preferably in the position of the above-mentioned sealing ora terminalis 5～10mm of distance, is provided with the 2nd embossed portion B2 of 4 places, B2 respectively ...

A pair of side leakage barriers formation portion 43,43 and absorbent main body continuum 17 are amounted to after 8 places engage by the 1st embossed portion B1 and the 2nd embossed portion B2, and the continuum of above-mentioned sanitary napkin 1 is sent to the cut-out operation.In addition, the 1st embossed portion B1, B1 are set ... the time, the continuum of above-mentioned sanitary napkin 1 is in extended state.

In above-mentioned cut-out operation, the continuum with the predetermined above-mentioned sanitary napkin 1 of gap periods ground cut-out obtains the sanitary napkin 1 as one absorbent commodity.Promptly shown in the right side of Fig. 5 (c), be cut off the above-mentioned sealing place of portion in the conduct that periodically forms along its length, the continuum broad ways of sanitary napkin 1 is cut off, obtain the single sanitary napkin 1 of one embodiment of the invention.

In a word, the manufacture method of above-mentioned sanitary napkin 1 is as described below.At first, form continuous member 44 by the grey cloth 41 of Stretchable sheet, this continuous member 44 is successive in side leakage barriers formation portion 43, and is discrete in alar part formation portion 42.Then, will be in a pair of continuous member 44 under the extended state with the both sides of the length direction of the absorbent main body continuum 17 that is fixed in other manufacturing separately.Then, cut into one sanitary napkin 1.The other parts of sanitary napkin 1 are according to the conventional method manufacturing.

According to this manufacture method, form " according to forming in the side leakage barriers in the portion 43 continuously, and a pair of continuous member 44,44 that discrete mode is cut off in alar part formation portion 42 " by the grey cloth 41 of Stretchable sheet.Then, with the side leakage barriers formation portion 43,43 of a pair of continuous member 44,44 ... stretch along its length, and under extended state, be fixed in the both sides of the length direction of absorbent main body continuum 17 separately.Afterwards, cut into one sanitary napkin 1.Therefore, under naturalness, a pair of alar part 2,2 does not have gauffer separately.

Below, describe with reference to accompanying drawing with regard to the 2nd embodiment of absorbent commodity of the present invention.

As Fig. 6～shown in Figure 10, have the absorbent main body 101 of elongate shape as the sanitary napkin of the 2nd embodiment of absorbent commodity of the present invention, this absorbent main body 101 has face sheet 102, back-sheet 103 and between the absorber between them 104.

Both sides (width both sides) at the length direction of face sheet 102 1 sides of absorbent main body 101, be provided with the fixedly alar part 106A of usefulness of a pair of absorbent commodity that constitutes by the other material outside face sheet 102 and the back-sheet 103,106B and a pair of back flap (rearflap) 107A, 107B.In addition, in explanation of the present invention, have " both sides of the length direction of absorbent main body " to reach " both sides of the width of absorbent main body " these two kinds of expression waies, but they all are meant the meaning of " along the both sides of the length direction of absorbent main body ".

A pair of alar part 106A, 106B stretches out to the inboard of width respectively from the width both sides of face sheet 102 1 sides of absorbent main body 101.A pair of back flap 107A, 107B stretches out to the outside of width respectively from the width both sides of face sheet 102 1 sides of absorbent main body 101.

Sanitary napkin to the present embodiment is described in detail.(Fig. 6 top) (Fig. 6 below) has absorbent main body 101 successively towards another end from an end of length direction: be disposed at front part during wearing near the abdominal part position of wearer, be opposite to wearer fluid drainage portion opposed of excretory portion and be disposed at back quadrate part near the position, back of wearer.

As Fig. 9 and shown in Figure 10, absorbent main body 101 is to be stacked gradually in proper order according to this by face sheet 102, absorber 104 and back-sheet 103, and face sheet 102 and back-sheet 103 engage and form in their surrounding edge portion, (junction surface of the junction surface of front edge portion and rearward edges portion in Fig. 6 and Fig. 8 respectively by " T3 ", " T4 " expression).In addition, face sheet 102 and absorber 104 engage by the junction surface T5 of groove shape.

Face sheet 102 is to become towards the sheet material of the face of wearer skin one side when dressing.Back-sheet 103 is towards the sheet material of clothes such as underwear one side (opposition side of skin one side of wearer) when dressing.

As face sheet 102, can use for example material of liquid such as non-woven fabrics and perforated film permeability.As back-sheet 103, can use for example material of anti-leakages such as resin film, resin film, water proof nonwoven cloth with minute aperture.As absorber 104, can use fiber assembly, non-woven fabrics, paper that has for example used paper pulp or hydrophilic fibre or the material that in them, has mixed the liquid retainability of superabsorbent polymer.

As Fig. 6 and shown in Figure 9, engage on the width both sides of face sheet 102 1 sides in opposed of the excretory portion of absorbent main body 101 and be fixed with a pair of alar part 106A, 106B.A pair of alar part 106A, 106B stretches out to the inboard of width respectively from the width both sides of face sheet 102 1 sides of absorbent main body 101.

As Fig. 6 and shown in Figure 10, engage on the width both sides of face sheet 102 1 sides in the back quadrate part of absorbent main body 101 and be fixed with a pair of back flap 107A, 107B.A pair of back flap 107A, 107B stretches out to the outside of width respectively from the width both sides of face sheet 102 1 sides of absorbent main body 101.

Be positioned at the alar part 106A of the sidepiece of phase the same side on the width of absorbent main body 101,106B and back flap 107A, 107B is respectively by 1 the 1st sheeting 105A that Stretchable sheet constituted, and the 2nd sheeting 105B forms.Particularly, the back flap 107A of the alar part 106A of a side and a side is formed by 1 the 1st sheeting 105A.The back flap 107B of the alar part 106B of opposite side and opposite side is formed by 1 the 2nd sheeting 105B.

Describe in detail below.On the 1st sheeting 105A, the direction of stretching out of the back flap 107A that stretches out a direction and a side of the alar part 106A of a side is opposite under the state that does not turn back.On the 2nd sheeting 105B, the direction of stretching out of the back flap 107B that stretches out direction and opposite side of the alar part 106B of opposite side is opposite under the state that does not turn back.

Promptly at the 1st sheeting 105A, on the 2nd sheeting 105B, alar part 106A, 106B and back flap 107A, 107B stretches out to the inboard of width and the outside of width respectively under the state that does not turn back.

The 1st sheeting 105A and the 2nd sheeting 105B are made of the other material outside face sheet 102 and the back-sheet 103.Therefore, a pair of alar part 106A, 106B and a pair of back flap 107A, 107B also is made of the other material outside face sheet 102 and the back-sheet 103.

As Fig. 6 and shown in Figure 8, the 1st sheeting 105A and the 2nd sheeting 105B engage by junction surface T1 and T2 respectively in the width both sides of face sheet 102 1 sides of absorbent main body 101.Junction surface T1 and T2 also are bonded together face sheet 102 and back-sheet 103.

In the outside of the width of absorber 104 and along not comprising alar part 106A among the 1st sheeting 105A and the 2nd sheeting 105B, the inside edge of 106B, junction surface T1 and T2 are through the total length of length direction and be provided with.In addition, junction surface T1 and T2 be at alar part 106A, gently bends to convex toward the outer side among the 106B towards the outside of width.

Junction surface T1～T5 forms by pressurization, heat seal, ultrasonic sealing, hot-melt adhesive etc. or their combination.In the present embodiment, junction surface T1～T5 forms by heat embossing sealing processing.

As formation alar part 106A, 106B and back flap 107A, the 1st sheeting 105A of 107B and the 2nd sheeting 105B use above-mentioned Stretchable sheet.By such design, thereby will back flap 107A, 107B turns back and under the situation of packing to the inboard of width, after taking out sanitary towel from the individual packaging material, back flap 107A, 107B opens to the outside of width easily, considers it is preferred from this respect.

Moreover, as previously described, by the junction surface T1 and the T2 of combination broad warp, the alar part 106A that turns back by the action that sanitary towel is installed on underwear, on the 106B, its stiff end 161A, near the sidepiece in absorbent main body 101 of 161B becomes and erects easily, can improve leak preventing effect.

What is called among the present invention " the width both sides of absorbent main body ", be meant linearity or roughly linearity (though be not linearity, but with the proximate shape of linearity) both sides, when the face sheet on the absorbent main body and/or back-sheet are stretched out and formed bellying, be meant the both sides of removing this bellying on width.

In addition, what is called among the present invention " is provided with alar part and back flap " in the width both sides of face sheet one side of absorbent main body, be not confined to the form in the 2nd embodiment, be alar part 106A, 106B and back flap 107A, 107B directly is bonded on the form that (stays out of other parts) on the face sheet 102, also comprises alar part 106A, 106B and back flap 107A, 107B is across the form of other part bonding on face sheet 102 outside the face sheet 102.

In the time of on sanitary napkin being fixed in underwears such as medicated underpants, alar part 106A, 106B be to back-sheet 103 1 lateral bucklings, and the non-skin in panty crotch of being adhesively fixed is towards face.On the alar part 106B of the alar part 106A of a side and opposite side, as Fig. 6 and shown in Figure 9, at alar part 106A, 106B is during towards the state of the width inboard of face sheet 102 1 sides on the upper surface of (state shown in Fig. 6), be provided with the 1st adhesive layer S1 respectively, S1.

Back flap 107A, 107B is under the state that extends to the width outside of the back quadrate part of absorbent main body 101, and dress is worn over the skin of underwear on face.From dressing the viewpoint of stability, preferred back flap 107A, 107B is bonded fixing.On the back flap 107B of the back flap 107A of a side and opposite side, as Fig. 6 and shown in Figure 10, at back flap 107A, 107B lower surface one side (back-sheet one side) of (state shown in Fig. 6) during towards the state in the width outside, be provided with the 2nd adhesive layer S2 respectively, S2.

As Fig. 8～shown in Figure 10, overleaf on the outer surface of sheet material 103, be provided with 2 article of the 3rd adhesive layer S3, S3 along the roughly total length of its length direction.

The following example of manufacture method of the sanitary napkin of explanation the present embodiment.

(1) carry out face sheet 102 and absorber 104 stacked.On this two layer laminates, be processed to form junction surface T5, thereby make face sheet 102 and absorber 104 engage (temporary joint) by the heat embossing sealing.

(2) then, the back-sheet 103 and absorber 104 1 sides of above-mentioned two layer laminates are merged.On this three layer laminates, be processed to form junction surface T3 by the heat embossing sealing, T4, thus face sheet 102 and back-sheet 103 are engaged.

(3) then, make the 1st sheeting 105A, the 2nd sheeting 105B and above-mentioned three layer laminates merge.On this four layer laminates, be processed to form junction surface T1 by the heat embossing sealing, T2, thus making face sheet 102 and the 1st sheeting 105A, the 2nd sheeting 105B engages.

(4) also have, junction surface T3, the formation of T4 also can be at the 1st sheeting 105A, after the 2nd sheeting 105B merged, with junction surface T1, the formation of T2 was carried out simultaneously.In addition, under the situation that does not form junction surface T5, also can carry out 3 between face sheet 102 and absorber 104 and the back-sheet 103 simultaneously and fold layer by layer, form junction surface T3, after the T4, form junction surface T1, T2.

(5) the 1st adhesive layer S1, the 2nd adhesive layer S2 and the 3rd adhesive layer S3 are separately positioned on alar part 106A, 106B, back flap 107A, the precalculated position on 107B and the back-sheet 103.

(6) with back flap 107A, 107B turns back to face sheet 102 1 sides (inboard of width), by the 3rd adhesive layer S3 individual packaging material (not shown) is sticked on the back-sheet 103.Under this state, whole sanitary napkin is rolled over 2～4 foldings along its length, can form packaging structure thus.

The sanitary napkin of the present embodiment is when taking off the individual packaging material from packed state, and a pair of alar part 106A, 106B are stably towards the inboard of width.Therefore, before sanitary napkin was placed panty crotch, the 1st bonding part S1 can not stick on the lower limb, was easy to dress.

Then, sanitary napkin placed panty crotch after, with a pair of alar part 106A, 106B bends to be wound on the panty crotch, sanitary napkin can be pasted and fixed on the underwear by the 1st bonding part S1.

In addition, the sanitary napkin of the present embodiment is when taking off the individual packaging material from packed state, because a pair of back flap 107A, 107B stretches out or becomes the state that stretches out easily to the outside of width respectively from the width both sides of face sheet 102 1 sides of absorbent main body 101, so sanitary towel becomes easy toward the wearing on the underwear.

In addition, utilize the 3rd adhesive layer S3 of back-sheet 103, S3 and back flap 107A, the skin that the 2nd adhesive layer S2 of 107B, S2 are pasted and fixed on underwear with the back quadrate part of sanitary napkin are on face the time, and dress is worn in stable condition, can further improve anti-leakage.

Moreover because alar part 106A, 106B stretches out to the interior side of width, so in case alar part 106A, 106B is wound on the underwear, and at the alar part 106A that turns back, the stiff end 161A of 106B will form the leakproof wall near the 161B.

Moreover, because at alar part 106A, among the 106B, junction surface T1, T2 be towards the outside curve of width, thus at user with alar part 106A, when 106B fixedly is worn on the underwear, can induce alar part 106A, 106B becomes the junction surface T1 with bending, and T2 is starting point and the shape that erects at the sidepiece of absorbent main body 101.Therefore, at alar part 106A, form the pocket P of portion (with reference to Fig. 7) near the stiff end 161A of 106B, 161B.Its result is improved anti-side leakage performance by above-mentioned leakproof wall and the P of pocket portion.

In addition, because back flap 107A, 107B stretches out to the outside of width respectively from the width both sides of absorbent main body 101, so can encase the buttocks of user, leakageresistance is improved.

In addition, because alar part 106A, 106B and back flap 107A, 107B is formed by the other material outside face sheet 102 and the back-sheet 103, so can use the other operation different to form alar part 106A, 106B and back flap 107A, 107B with absorbent main body 101.Therefore, because as long as with alar part 106A, 106B and back flap 107A, the width both sides that 107B is engaged in absorbent main body 101 get final product, so make the efficient height.

Particularly, because the alar part 106A of a side and the back flap 107A of a side are formed by 1 the 1st sheeting 105A, the back flap 107B of the alar part 106B of opposite side and opposite side is formed by 1 the 2nd sheeting 105B, so do not need with position (at interval) alignment of the back flap 107A of the alar part 106A of a side and a side and with position (at interval) alignment of the back flap 107B of the alar part 106B of opposite side and opposite side.

Moreover, relevant alar part 106A, 106B and back flap 107A, 107B can consider face sheet 102 and back-sheet 103, and uses the material of desired rerum natura.Therefore, the degree of freedom height that material is selected, the while can be selected the material of optimal rerum natura.

Below other embodiment of the present invention is described.The main just point different with the 2nd above-mentioned example of other embodiment described, and same point is with identical symbolic representation and omit explanation.The point of Te Bieshuominging can suitably not be suitable for the explanation in the 2nd embodiment.

In the 3rd embodiment, under the state that stretches out to the inboard of width, become alar part 106A, the 1st sheeting 105A of the skin contact surface of 106B, the face of the 2nd sheeting 105B, with under the state that stretches out to the outside of width, become back flap 107A, the 1st sheeting 105A of the skin contact surface of 107B, the face difference of the 2nd sheeting 105B.

And, at the 1st sheeting 105A, among the 2nd sheeting 105B, alar part 106A, 106B and back flap 107A, 107B stretches out towards equidirectional under the state that does not turn back, alar part 106A, 106B turns back to the inboard of width, is engaged in face sheet 102 1 sides of absorbent main body 101.

About the sanitary napkin of the 3rd embodiment, only further describe with regard to the 1st sheeting 105A.Also have, because left-right symmetric when overlooking, so the 2nd sheeting 105B is identical with the 1st sheeting 105A, the explanation that the 1st sheeting 105A is carried out also can be suitable for aptly to the 2nd sheeting 105B.

The sanitary napkin of the 3rd embodiment is shown in Figure 11 (a), and on the 1st sheeting 105A, the direction of stretching out of the back flap 107A that stretches out a direction and a side of the alar part 106A of a side is identical under the state that does not turn back.

And, as Figure 11 (b) and shown in Figure 12, the 1st sheeting 105A is engaged in face sheet 102 1 rear flank of absorbent main body 101 with the back flap 107A of the alar part 106A of a side and a side towards the state of the foreign side of width, and the alar part 106A of a side turns back and engages to the inboard of width.

Equally, on the 2nd sheeting 105B, the direction of stretching out of the back flap 107B that stretches out a direction and a side of the alar part 106B of a side is identical under the state that does not turn back.And, as shown in figure 12, the 2nd sheeting 105B is engaged in face sheet 102 1 rear flank of absorbent main body 101 with the back flap 107B of the alar part 106B of opposite side and opposite side towards the state in the outside of width, and the alar part 106B of opposite side turns back and engages to the inboard of width.

For example, shown in Figure 11 (c), picture forms alar part 106A, 106B and back flap 107A, 107B is such, and the 1st sheeting 105A in the sanitary napkin of the 3rd embodiment and the 2nd sheeting 105B cut into the wave wire by the width central part with belt flake material Q along whole length direction and obtain.

By design alar part 106A, 106B and back flap 107A, the shape of 107B, position etc. shown in Figure 11 (c), can make material not waste fully.If in the time of can not adopting said method, can be after cutting off belt flake material Q, obtaining the 1st sheeting 105A and the 2nd sheeting 105B, to two sheeting 105A, 105B replenishes processing to form the alar part 106A of desired shape, position, 106B and back flap 107A, 107B.

In the 3rd embodiment, having only alar part 106A, with the 1st sheeting 105A, the 2nd sheeting 105B is engaged in face sheet 102 1 sides of absorbent main body 101 respectively under the state that 106B is turned back in advance, also can form alar part 106A, the form that 106B turns back to the inboard of width.

According to the sanitary napkin of the 3rd embodiment, can be fully when forming the 1st sheeting 105A and the 2nd sheeting 105B or almost do not have a waste of material by belt flake material Q.Therefore, can significantly cut down alar part 106A, 106B and back flap 107A, the waste of material of 107B.

In addition, alar part 106A, the stiff end 161A of 106B, 161B turn back towards the inboard of width and are engaged in the width both sides of absorbent main body 101.Therefore, be provided with alar part 106A, the width both sides of the absorbent main body 101 in the zone of 106B can erect a little towards face sheet 102 1 sides, thereby prevent that the side leakage performance is further enhanced.

Below, the sanitary napkin of the 4th embodiment is described.

The sanitary napkin of the 4th embodiment is by the 1st sheeting 105A, the 2nd sheeting 105B forms, the alar part 106A on above-mentioned two sheetings, 106B and back flap 107A, 107B stretches out towards equidirectional under the state that does not turn back, and is identical with the 3rd embodiment in this respect.

And, in the 3rd embodiment, at the 1st sheeting 105A, on the 2nd sheeting 105B, be with alar part 106A, 106B turns back to the inboard of width, by comparison, the difference of the 4th embodiment is: at the 1st sheeting 105A, among the 2nd sheeting 105B, be that 107B turns back to the outside of width with back flap 107A.

Promptly the sanitary napkin of the 4th embodiment as shown in figure 13, the back flap 107A of one side has following structures: the 1st sheeting 105A is engaged in face sheet 102 1 rear flank of absorbent main body 101 with the alar part 106A of the back flap 107A of a side and a side towards the state of the inboard of width, and the 1st sheeting 105A turns back and engages to the outside of width.

In addition, the back flap 107B of opposite side has following structures: the 2nd sheeting 105B is engaged in face sheet 102 1 rear flank of absorbent main body 101 with the alar part 106B of the back flap 107B of opposite side and opposite side towards the state of the inboard of width, and the 2nd sheeting 105B turns back and engages to the outside of width.

In the 4th embodiment, having only back flap 107A, under the state that 107B is turned back in advance with the 1st sheeting 105A, the 2nd sheeting 105B is engaged in face sheet 102 1 sides of absorbent main body 101 respectively, also can form back flap 107A, the form that 107B turns back to the outside of width.

According to the sanitary napkin of the 4th embodiment, can adopt the method manufacturing identical, and obtain same effect with the 3rd embodiment.

The present invention is not limited to above-mentioned embodiment, only otherwise exceed content of the present invention, then can do suitable the variation.

For example, on the side leakage barriers 3 in the sanitary towel 1 of the 1st embodiment, between the 1st embossed portion B1 and the 2nd embossed portion B2, also can further form the other embossed portion of fixedly using.And, also can form being starting point between the 1st embossed portion B1 and the 2nd embossed portion B2, until surpass the embossed portion of whole ora terminalis that the 2nd embossed portion B2 spreads all over the length direction of side leakage barriers 3 as the other fixing embossed portion of using.Forming said fixing with under the situation of embossed portion, by the contractility of control Stretchable sheet, can moderately control the curved shape of the length direction of adjusting sanitary napkin 1, improve fit to health.

Said fixing between the 1st embossed portion B1 and the 2nd embossed portion B2 with embossed portion or between the 1st embossed portion B1 and the 2nd embossed portion B2 until the said fixing of the whole ora terminalis of the length direction of side leakage barriers 3 can form continuously with embossed portion, also can form discontinuously.And from the contraction of easy inhibition Stretchable sheet, the angle that obtains the effect of fit raising is set out, and said fixing more preferably forms continuously with embossed portion.

Angle from the inotropic inhibition effect of Stretchable sheet, said fixing between the 1st embossed portion B1 and the 2nd embossed portion B2 with embossed portion or between the 1st embossed portion B1 and the 2nd embossed portion B2 until the said fixing of the whole ora terminalis of the length direction of side leakage barriers 3 can not only form in the width inside edge of side leakage barriers 3 one with embossed portion, also can be formed into the position of the width outer ledge portion of side leakage barriers 3 always.

The above-mentioned embossed portion that is used for fixing side leakage barriers 3 also can form linearity and curve-like, or constitutes pattern by their combination, or forms independently (discrete) pattern, thereby increases aesthetic appearance.

In addition, as the non-woven fabrics of the preferred material of Stretchable sheet, also can be the non-woven fabrics of monolayer.At this moment, from the angle of intensity and sense of touch, the content of the hot crimpiness fiber in this non-woven fabrics is preferably 50～95 weight %, and the content of hot-melt-bondable fiber is preferably 5～50 weight %.

In addition, as the non-woven fabrics of the preferred material of Stretchable sheet, also can constitute by 3 layers or more multi-layered fibrous layer.For example, in the above-mentioned non-woven fabrics that uses in the 1st embodiment, the 1st fibrolaminar stacked the 2nd fiber surface one side of opposition side of face of layer, also can be stacked by the 3rd fibrous layer that constitutes with the identical or different material of the 2nd fibrous layer, and they are become one on thickness direction by partial heat fusing bonding part.

In addition, in above-mentioned manufacture method, form a pair of continuous member 44,44 by the grey cloth 41 of Stretchable sheet, but and portion be confined to this, also can form (not forming an a pair of) continuous member 44, also can form three or more continuous members 44,44 ...

On absorbent main body, also can be as the 2nd embodiment, at the rear side of the length direction of alar part the back flap is set further.

Absorbent commodity of the present invention can also be other a absorbent commodity such as underwear back boxing (sanitary pad), incontinence pad except sanitary napkin.

The 2nd adhesive layer of back flap can not have yet.

In alar part 106A, the 106B of the 2nd embodiment, the shape of junction surface T1, T2 can not be crooked also, but linearity.Junction surface T1, T2 also can not have identical width in the longitudinal direction, and the width that is designed to locate at the place, the place ahead and the rear of alar part is greater than the width at alar part.In addition, junction surface T1, T2 also can not be 1, but many.

As the formation material of adhesive layer, can preferably list hotmelt and two sides adhesive tape, as long as but have anti-offset effect, then be not limited to hotmelt and two sides adhesive tape, also can use fastener (hook) materials such as mechanical zipper.

In addition, when using the fastener material as the 1st adhesive layer in the alar part, can according to between the alar part in conjunction with or the mode of outer surface one side that alar part is fixed in the crotch portion of underwear form alar part.At this moment, also can change the length of alar part on width, form the asymmetrical shape in the left and right sides.

According to absorption shape article of the present invention, because alar part forms by a slice Stretchable sheet, do not use the elastic telescopic parts, so alar part is good to the fitness of underwear curved shape, and the sense of touch of alar part and wearing comfort are improved.

Claims (14)

1, a kind of absorbent commodity, a pair of alar part that it has absorbent main body and stretches out from the both sides of the length direction of this absorbent main body (11), wherein, described alar part is formed by a slice Stretchable sheet.

2, absorbent commodity according to claim 1, it is provided with a pair of side leakage barriers, this a pair of side leakage barriers covers the both sides of length direction of skin contact surface one side of described absorbent main body, and described side leakage barriers is formed by the described Stretchable sheet that forms described alar part.

3, absorbent commodity according to claim 2, wherein, in the leakage barriers of a pair of described side, inside edge portion one side is separately separated with the skin contact surface under naturalness.

4, according to each described absorbent commodity of claim 1～3, wherein, the described absorbent commodity under the naturalness is in the longitudinal direction towards the skin contact surface one lateral bending song of this absorbent commodity.

5, according to each described absorbent commodity of claim 1～3, wherein, the part of a pair of described side of the formation in described Stretchable sheet leakage barriers is turned back in the free-ended mode that forms inclined to one side circle.

6, according to each described absorbent commodity of claim 1～3, wherein, described Stretchable sheet is formed by the non-woven fabrics that contains curling crimpiness fiber and hot-melt-bondable fiber.

7, absorbent commodity according to claim 1, it further is provided with a pair of back flap that stretches out to the outside of width respectively from the both sides of the length direction of described absorbent main body, and a pair of described alar part stretches out to the inboard of width respectively from the both sides of the length direction of face sheet one side of described absorbent main body.

8, absorbent commodity according to claim 7, wherein, the described alar part and the described back flap that are positioned at the sidepiece of phase the same side on the width of described absorbent main body are formed by 1 described Stretchable sheet.

9, absorbent commodity according to claim 8, wherein, on described Stretchable sheet, described alar part and described back flap stretch out to the inboard of width and the outside of width respectively under the state that does not turn back.

10, absorbent commodity according to claim 8, wherein, under the state that stretches out to the inboard of width, become the face of described Stretchable sheet of the skin contact surface of described alar part, different with the face of the described Stretchable sheet of the skin contact surface that under the state that stretches out to the outside of width, becomes described back flap.

11, absorbent commodity according to claim 10, wherein, on described Stretchable sheet, described alar part and described back flap stretch out towards equidirectional under the state that does not turn back, described alar part to the inboard of width turn back and with described face sheet one side engagement of described absorbent main body.

12, absorbent commodity according to claim 10, wherein, on described Stretchable sheet, described alar part and described back flap stretch out towards equidirectional under the state that does not turn back, described back flap to the outside of width turn back and with described face sheet one side engagement of described absorbent main body.

13, absorbent commodity according to claim 11, wherein, described Stretchable sheet under the state that has only described alar part to turn back in advance with described face sheet one side engagement of described absorbent main body, thereby described alar part turns back to the inboard of width.

14, absorbent commodity according to claim 12, wherein, described Stretchable sheet under the state that has only described back flap to turn back in advance with described face sheet one side engagement of described absorbent main body, thereby described back flap turns back to the outside of width.

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