CN106456395B

CN106456395B - Absorbent commodity

Info

Publication number: CN106456395B
Application number: CN201580034668.0A
Authority: CN
Inventors: 柏木政浩; 穆沁; 穆沁一; 蒋维; 沈吉平
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2015-06-03
Filing date: 2015-08-19
Publication date: 2017-11-10
Anticipated expiration: 2035-08-19
Also published as: KR20170126507A; JP5978349B1; JP2016221135A; WO2016194245A1; CN106456395A; KR101831753B1; MY179264A

Abstract

The present invention provides a kind of sanitary napkin (1), and the sanitary napkin (1) includes：Absorber (2), it is used to absorb liquid；Top flat (3), the side covering absorber (2) on the thickness direction of its self-priming acceptor (2)；And egative film (5), its opposite side on the thickness direction of absorber (2), wherein, the both sides of top flat (3) in the direction of the width have the reflex part (32) to turn back, the top ends (320) of reflex part (32) are engaged in egative film (5) in a thickness direction using a pair of the 4th junction surfaces (14) arranged in the width direction between absorber (2) and egative film (5), a pair of the 4th junction surfaces (14c) in a pair of the 4th junction surfaces (14b) and rear area (1c) in front region (1b) are respectively positioned on the position by the outside on width than a pair of the 4th junction surfaces (14a) in middle section (1a).

Description

Absorbent commodity

Technical field

The present invention relates to a kind of absorbent commodity.

Background technology

In the past, it is known as absorbent commodity to have sanitary napkin.For example, in patent document 1, one kind is disclosed The sanitary napkin of the absorber of surfacing, leakproofing material and liquid retainability including liquid permeability, the liquid permeability Surfacing is in contact with skin, the body fluid such as menses can be supplied to pass through, the leakproofing material is in contact with shorts, for preventing body fluid Leakage, the absorber of the liquid retainability is between surfacing and leakproofing material.

In the sanitary napkin, surfacing directly coats skin contact surface side and the side of absorber, non- Skin contact surface side, surfacing are fixed with absorber and leakproofing material respectively by fixative.That is, the skin contact of absorber Surface side and side are covered by surfacing, and the non-skin contact surface side of absorber is covered by leakproofing material.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 7-184957

The content of the invention

Problems to be solved by the invention

In the sanitary napkin described in patent document 1, when wearing, when the two legs application width side from user During upward power, absorber collapses under pressure, and two legs can be directly by the abutting pressure from the absorber harder than surfacing.Its As a result, user feels the indisposed sense brought to hip crotch, and wearing property is possible to be deteriorated.In addition, it is being applied with width from two legs In the case of power on direction, sanitary napkin collapses under pressure in width, and therefore, absorb the liquid such as body fluid leans on skin side Face shape be likely to occur deformation and produce leakage.

The present invention be in view of problem as described above and make, its object is to, there is provided one kind can suppress to give hip crotch The indisposed sense that brings and the absorbent commodity for improving wearing property and the leakage that liquid can be suppressed.

The solution used to solve the problem

For realizing that the main technical scheme of above-mentioned purpose provides a kind of absorbent commodity, it has length direction, width Degree direction and thickness direction, the absorbent commodity include：Absorber, it is used to absorb liquid；Top flat, it is from the absorber The thickness direction on side cover the absorber；Second, its on the thickness direction, described absorber Between the top flat；And egative film, its opposite side on the thickness direction of the absorber, the absorbent commodity It is characterised by, both sides of the top flat on the width have the reflex part to turn back, the top of the reflex part Hold on the thickness direction between the absorber and the egative film, the middle section at least on the length direction In, the both ends on the width of described second are on the width positioned at the absorber and the top flat Between.According to the record of this specification and appended accompanying drawing, other features that can be clearly of the invention.

The effect of invention

Using the present invention, can suppress to improve wearing property to the indisposed sense that hip crotch is brought and letting out for liquid can be suppressed Leakage.

Brief description of the drawings

Fig. 1 is the approximate vertical view of the sanitary napkin of embodiments of the present invention from the skin side on thickness direction.

Fig. 2 is the approximate vertical view of the sanitary napkin from the non-skin side on thickness direction.

Fig. 3 A are along the sectional view of Fig. 1 IIIA-IIIA lines, and Fig. 3 B are the sectional views along Fig. 1 IIIB-IIIB lines.

Fig. 4 is the outline for representing the 4th central joint, the 4th front junction surface and the position relationship at the 4th rear junction surface Top view.

Embodiment

According to the record of this specification and appended accompanying drawing, following item can be at least specified.

It is clear that, there is provided a kind of absorbent commodity, it has length direction, width and thickness direction, the suction The property received article includes：Absorber, it is used to absorb liquid；Top flat, the side on its described thickness direction from the absorber Cover the absorber；And egative film, its opposite side on the thickness direction of the absorber, wherein, the top Both sides of the piece on the width have the reflex part to turn back, and the top ends of the reflex part pass through in the absorption The a pair of engaging portion arranged between body and the egative film along the width is engaged in the egative film on the thickness direction, The institute of part in front region and the pair of junction surface on the length direction at the pair of junction surface State during the part in the rear area on length direction is respectively positioned on the length direction than the pair of junction surface Entreat position of the part in region by the outside on the width.

Thus, in the higher middle section of the frequency of two legs contact, a pair of engaging portion is located at a pair than front region The a pair of engaging portion of junction surface and rear area is by the position on the inside of width, therefore, it is possible to be ensured with larger region The part suitable with the reflex part of the top flat more soft than absorber, so as to relax the contacting from absorber that two legs are subject to Pressure.Accordingly, it is capable to suppress to improve the wearing of absorbent commodity to the indisposed sense that hip crotch is brought.On the other hand, front region In a pair of engaging portion and rear area in a pair of engaging portion be located at a pair of engaging portion than middle section by outside width The position of side, therefore, it is possible to further ensure that the flat shape in the face by skin side for absorbing liquid, so as to suppress liquid Leakage.

It is desirable that, in the absorbent commodity, the position of the part of the front region at the pair of junction surface Put with least a portion in the position of the part of the middle section at the pair of junction surface in the length direction Upper overlapping, the position of the part of the rear area at the pair of junction surface is described with the pair of junction surface At least a portion in the position of the part of middle section is overlapping on the length direction.

Thus, by the position of a pair of engaging portion that makes front region, a pair of engaging portion of rear area position and The position of a pair of engaging portion of middle section is overlapped in the higher middle section side of the frequency contacted with two legs in the longitudinal direction, In the case of the power on width is applied with from two legs when absorbent commodity is worn, the engagement between top flat and egative film Also it is difficult to peel off.

It is desirable that, in the absorbent commodity, the absorber includes absorbent core, and the absorbent core is at least described The narrowing portion that middle section has to the inner side constriction on the width.

Thus, in middle section, the distance on the width untill playing absorbent core from the reflex part of top flat becomes It is long, it can suppress to be immediately exposed to come after two legs are by the reflex part from top flat and the contact at the both ends of second The state of affairs as the contact of self-absorption core, so as to relax the contact from absorbent core that two legs are subject to.

It is desirable that, in the absorbent commodity, in the part of the front region at the pair of junction surface At least one end in the inner part is configured at the constriction starting position of the narrowing portion on the length direction or is configured at ratio The position of the constriction starting position in the inner part, at least one in the part of the rear area at the pair of junction surface Individual end in the inner part is configured at the constriction starting position of the narrowing portion on the length direction or is configured at than the contracting The position of narrow starting position in the inner part.

Thus, due to front region a pair of engaging portion and rear area at least one of a pair of engaging portion it is inner The end of side is located at the region provided with narrowing portion, therefore, from two legs to provided with narrowing portion when absorbent commodity is worn In the case that part is applied with the power on width, the engagement between top flat and egative film is also more difficult to peel off.

It is desirable that, in the absorbent commodity, the egative film has lateral plate in the middle section, and the lateral plate is with than institute The mode that the reflex part of top flat extends to the outside on the width is stated to be formed.

Thus, the extension (part for egative film) for being used to be formed alar part of lateral plate is not engaged in top flat, therefore, is inciting somebody to action When the extension is rolled over to the non-skin lateral bending on thickness direction and is worn on underwear, top flat can be avoided to be drawn with egative film Such state of affairs is stretched, so as to suppress the indisposed sense brought when wearing absorbent commodity to hip crotch.

It is desirable that, in the absorbent commodity, also on the thickness direction, the described absorber of the absorbent commodity There is second, at least in the middle section on the length direction between the top flat, the width of described second The both ends spent on direction are on the width between the absorber and the top flat.

Thus, in the middle section on the higher length direction of the frequency contacted with two legs, the both ends of second exist On width between absorber and top flat, therefore, two legs can by before the contact of absorber by To from the reflex part of top flat and the contact at the both ends of second piece more soft than absorber, without directly by from The contact of absorber.Therefore, it is possible to relax the contact from absorber that two legs are subject to, so as to suppress to give hip crotch band The indisposed sense come, it is favorably improved the wearing of absorbent commodity.

It is desirable that, in the absorbent commodity, the absorber includes absorbent core, and the absorbent core is at least described The narrowing portion that middle section has to the inner side constriction on the width, in the middle section, described second Gap is provided between end and the absorbent core on the width of piece.

Thus, absorbent commodity has and top flat and the region of second be present and only exist top flat in a thickness direction Region.In the case where applying the power on width from two legs, from rigidity than the rigidity of top flat and the region of second be present Low, to only exist top flat region is deformed, and top flat be present and the region of second easily erects in a thickness direction.Cause This, can be from the entire surface that this has been erected by contact, therefore can relax that two legs are subject to comes from top flat and second Contact, so as to more suppress the indisposed sense brought to hip crotch.

It is desirable that, in the absorbent commodity, the both ends of described second include the region being folded back.

Thus, two legs can be pressed from the region being folded back with the big face of the both ends of the surface than second by contact Power, therefore, compared with from both ends of the surface (edge) by the situation of contact, it can more suppress to bring to hip crotch indisposed Sense.

It is desirable that, in the absorbent commodity, for by the top flat and it is described second in the thickness direction Position of the articulate junction in the both ends than described second by the inner side on the width.

Thus, in the reflex part of top flat and the both ends of second, because top flat and second do not connect in a thickness direction Altogether, therefore, the free degree increase of fiber, when using absorbent commodity, the sense of touch that two legs are subject to improves, and can more press down Make the indisposed sense brought to hip crotch.

It is desirable that, in the absorbent commodity, the absorber includes absorbent core, and the absorbent core is at least described Middle section has a narrowing portion to the inner side constriction on the width, the top flat and it is described second in the width Both sides on degree direction are joined together on the thickness direction by compressing section compresses, and the compression unit is at least in the constriction The position of the at utmost constriction in portion is located at the outside on the width of the narrowing portion.

Thus, top flat and the rigidity of second uprise in the opening position provided with compression unit, therefore, in two legs in width On to absorbent commodity applying power when, the reflex part of top flat and the both ends of second are easily starting point in thickness side using compression unit Erect or decline upwards.Thus, the entire surface or the entire surface of decline that two legs can be erected on the comfortable thickness direction are connect Touch pressure, therefore the contact from top flat and second that two legs are subject to can be relaxed, so as to more suppress to hip The indisposed sense that crotch is brought.

Embodiment

As an example of the absorbent commodity of embodiments of the present invention, illustrate sanitary napkin 1 (below, only It is set to sanitary napkin 1).In addition, the absorbent commodity is also included such as so-called panty liner as protection pad, it is not limited to Sanitary napkin.

The structure of sanitary napkin 1

Reference picture 1, Fig. 2, Fig. 3 A and Fig. 3 B illustrate the structure of sanitary napkin 1.

Fig. 1 is the approximate vertical view of the sanitary napkin 1 of the embodiments of the present invention from the skin side on thickness direction.Figure 2 be the approximate vertical view of the sanitary napkin 1 from the non-skin side on thickness direction.Fig. 3 A are the IIIA-IIIA lines along Fig. 1 Sectional view, the sectional view of IIIB-IIIB lines of Fig. 3 B along Fig. 1.

Sanitary napkin 1 is the flat member for overlooking elongate shape, has length direction, width and thickness direction. In the following description, " length direction " represents the length direction of the product of sanitary napkin 1, and " thickness direction " represents the production of sanitary napkin 1 The direction of thickness possessed by product, " width " represent the short side direction orthogonal with length direction and thickness direction.In addition, In the longitudinal direction, using the direction of the veutro of user when using sanitary napkin 1 as " front ", by the direction of the dorsal part of user As " rear ".In addition, that side that thickness direction has to be in contact with the skin of user when using sanitary napkin 1 " the non-skin side " of " skin side " and opposite side as " skin side ".

As shown in Figure 3 A and Figure 3 B, sanitary napkin 1 includes：Absorber 2；Top flat 3, its thickness direction certainly as absorber 2 On side skin side covering absorber 2；Second 4, it is located between on thickness direction, absorber 2 and top flat 3；With And egative film 5, it is located at the non-skin side as the opposite side on the thickness direction of absorber 2.In the present embodiment, egative film 5 With main leaf 51 and lateral plate 52 both pieces.

In top flat 3 and second 4, absorber 2 and second 4, absorber 2 and top flat 3, top flat 3 and egative film 5, egative film 5 Main leaf 51 is joined together by bonding agents such as hot-melt adhesives respectively with lateral plate 52.As the application pattern of bonding agent, can enumerate Go out such as Ω patterns, spiral pattern, candy strip.

In the following description, the junction surface between top flat 3 and second 4 is set to the 1st junction surface 11, by absorber 2 The 2nd junction surface 12 is set to the junction surface between second 4, the junction surface between absorber 2 and top flat 3 is set into the 3rd engages Portion 13, the junction surface between top flat 3 and egative film 5 is set to the 4th junction surface 14, by between the main leaf 51 and lateral plate 52 in egative film 5 Junction surface be set to the 5th junction surface 15, the 1st junction surface 11, the 2nd junction surface 12, the 3rd junction surface 13 and the 4th is described below The specific position relationship at junction surface 14.

In the present embodiment, as shown in Figure 1, Figure 2 and shown in Fig. 4, the outer rim of sanitary napkin 1 is formed as being connected by multiple circular arcs The waveform shape formed.In addition, the center of sanitary napkin 1 in the longitudinal direction has alar part 10, the alar part 10 is used for when in use Mounting is fixed on underwear etc. and is above provided.The alar part 10 is to be extended out in a manner of towards protruding outside on width General triangular shape and be respectively arranged on the both sides on width.

On the length direction of sanitary napkin 1, the region provided with alar part 10 is set to middle section 1a, will be than middle section 1a Region on the front is set to front region 1b, and the region than middle section 1a rearward is set into rear area 1c.In addition, not In the case of sanitary napkin with alar part 10, region suitable with the region provided with alar part 10 in the longitudinal direction is set to center Region 1a.

Here, reference picture 2 further illustrates boundary and the middle section between middle section 1a and front region 1b Boundary between 1a and rear area 1c.

In alar part 10, the outermost point on width is set to summit 10a.For from the 10a of the summit The circular arc projecting inward towards sanitary napkin 1 conjointly formed forwards in multiple circular arcs of the outer rim of sanitary napkin 1, will be from summit 10a sides observe successively the tangent line of the circular arc it is inclined in the case of, the inclination of the tangent line most start it is parallel with length direction Point on circular arc is set to the point 10b of front side.In this case, by the point 10b of a pair of the front sides arranged in the direction of the width The line linked up is set to the line of demarcation (front side line of demarcation) between middle section 1a and front region 1b, than the front side point The region of boundary line on the front turns into front region 1b.

Similarly, in the multiple circular arcs for the outer rim that sanitary napkin 1 is rearward conjointly formed from the 10a of summit, court The circular arc projecting inward to sanitary napkin 1, by observed successively from summit 10a sides the tangent line of the circular arc it is inclined in the case of, should The point that the inclination of tangent line most starts on the circular arc parallel with length direction is set to the point 10c of rear side.In this case, will be in width The line that the point 10c of a pair of the rear sides arranged on degree direction is linked up is set to minute between middle section 1a and rear area 1c Boundary line (rear side line of demarcation), turn into rear area 1c than the region of rear side line of demarcation rearward.

Thus, on length direction play rear side line of demarcation from front side line of demarcation untill region turn into middle section 1a.In fig. 2, double dot dash line is utilized respectively to represent the point 10c's of the point 10b of a pair of front sides tangent line and a pair of rear sides Tangent line, single dotted broken line is utilized respectively to represent front side line of demarcation and rear side line of demarcation.

Absorber 2 is for absorbing the liquid such as menses and the liquid being held in the component of inside, such as Fig. 3 A and Fig. 3 B institutes Show, it includes the absorbent core 21 formed by paper pulp fiber as liquidabsorbing fibres etc. and by the softness such as cotton paper The emulsion sheet 22 that raw material are formed.

Absorbent core 21 is harder than top flat 3, second 4 and egative film 5, has thickness.As shown in Fig. 1 and Fig. 3 A, absorbability The center of core 21 in the longitudinal direction has the narrowing portion 210 to the inner side constriction on width.In the present embodiment, such as Shown in Fig. 1, narrowing portion 210 is not limited to this in scope longer than middle section 1a in the longitudinal direction, is at least located at Middle section 1a.In addition, absorber 2 must not necessarily include the absorbent core 21 with narrowing portion 210.

As shown in Figure 3 A and Figure 3 B, in the state of having sandwiched absorbent core 21 in the inside of emulsion sheet 22, emulsion sheet 22 The non-skin side of both ends in a thickness direction on width coincides.In the present embodiment, due to absorbent core 21 With narrowing portion 210, therefore, as shown in Figure 3A, at least in middle section 1a, exist between emulsion sheet 22 and absorbent core 21 Space.

Top flat 3 is the liquid permeable component such as menses, and it is formed by non-woven fabrics of liquid permeability etc..In present embodiment In, as top flat 3, using make such as 1.3dtex~2.2dtex (being preferably 1.7dtex or so) thinner fiber with as 20kg/m³~40kg/m³(it is preferably 25kg/m³~35kg/m³Left and right) density the non-woven fabrics that is combined into of mode.Thus, The flexibility of top flat 3 is good and obtains soft skin sense of touch, and therefore, the sense of touch that skin is subject to is good.In addition, however it is not limited to This, top flat 3 is the component at least having liquid permeability.

As shown in Figure 3 A and Figure 3 B, the both sides of top flat 3 in the direction of the width have the reflex part 32 to turn back.Reflex part 32 by turning back top flat 3 to be formed in the line 32b that turns back.The covering absorber 2 that the line 32b that turns back is located in top flat 3 respectively By the both sides on the width of the planar portions 31 in the face of skin side.

The top 320a of reflex part 32 is in a thickness direction between absorber 2 and egative film 5.In the present embodiment, Top ends 320 containing top 320a are in a thickness direction towards the inner side on width between absorber 2 and egative film 5 (center side) extends.Top ends 320 utilize a pair of the 4th junction surfaces 14 arranged in the width direction between absorber 2 and egative film 5 Egative film 5 is engaged in a thickness direction.Thus, top flat 3 engages in top ends 320 with egative film 5.

Second 4 is the component that can pass through in the same manner as top flat 3 liquid such as menses, its by liquid permeability synthetic fibers nothing Cloth etc. is spun to be formed.As shown in Figure 3 A and Figure 3 B, the both ends on the width of second 4 include the region 400 being folded back, The region 400 being folded back is in the direction of the width between absorber 2 and top flat 3.

In the present embodiment, the both ends of second 4 be included in whole middle section 1a, whole front region 1b and The region 400 being folded back in the range of whole rear area 1c, the region 400 being folded back is in the direction of the width positioned at suction Between acceptor 2 and top flat 3.However it is not limited to this, as long as at least in middle section 1a, the both ends of second 4 are in width On direction between absorber 2 and top flat 3.

Middle section 1a is the higher region of the frequency contacted when wearing sanitary napkin 1 with two legs of user.In addition, such as Described such, absorber 2 is formed as harder than top flat 3, second 4, and the two leg self-priming acceptors 2 of user are by than top flat 3, second The big contact of piece 4.

In the present embodiment, at least in middle section 1a, the both ends on the width of second 4 are in width side Upwards between absorber 2 and top flat 3, therefore, two legs can be arrived before by the contact from absorber 2 From the reflex part 32 of top flat 3 and the contact at the both ends of second piece 4 more soft than absorber 2, without directly being arrived The contact of self-priming acceptor 2, therefore, it is possible to relax the contact from absorber 2 that two legs are subject to, so as to suppress to hip The indisposed sense that crotch is brought, it is favorably improved the wearing of sanitary napkin 1.

In addition, the both ends of second 4 include the region 400 being folded back, thus, two legs can be from having than second The region in the big face of 4 both ends of the surface is by contact, therefore, with the situation phase from the both ends of the surface (edge) by contact Than can more suppress the indisposed sense brought to hip crotch.

Also, absorber 2 in middle section 1a because with narrowing portion 210 and at least making absorbent core 21 on width Inner side constriction, therefore, the distance on width untill playing absorbent core 21 from the reflex part 32 of top flat 3 is elongated, energy It is enough to suppress to be immediately exposed to come after two legs are by the contact from the reflex part 32 of top flat 3 and the both ends of second 4 The state of affairs as the contact of self-absorption core 21, the contact from absorbent core 21 that two legs are subject to can be relaxed.

As shown in Figure 3 A and Figure 3 B, absorbent core 21 with the width as second 4 it is end, be folded back Region 400 top 400a between be provided with gap S.In the present embodiment, in middle section 1a, front region 1b and Gap S is equipped with the whole length direction of this several person of rear area 1c, but is not limited to this, as long as at least in middle section 1a In be provided with gap S.In addition, gap S must be not necessarily provided between the top 400a and absorbent core 21 of second 4, But desirably it is provided with gap S.

The reason is that in a thickness direction with there is top flat 3 and the region of second 4 in the sanitary napkin 1 with gap S With the region for only existing top flat 3.Rigidity in the region of top flat 3 is only existed less than existing in top flat 3 and the region of second 4 Rigidly, therefore, in the case of being applied with the power on width from two legs in middle section 1a, the area of top flat 3 is only existed certainly Domain is deformed.That is, the region of top flat 3 is only existed than top flat 3 be present and the region of second 4 is easy deforms.

Thus, compared with only existing the region of top flat 3, the top of second 4 and the skin side on thickness direction be present The region of piece 3 easily erects in a thickness direction, can relax two legs from the entire surface that this has been erected by contact The contact from top flat 3 and second 4 being subject to, so as to more suppress the indisposed sense brought to hip crotch.

As shown in figure 1, top flat 3 and second 4 using spread configuration in the direction of the width, extend along its length one Sealing 6 is joined together in a thickness direction.As the joint method between top flat 3 and second 4, can include for example Welding based on pressurization compression etc..As shown in Fig. 1 and Fig. 3 A, a pair of sealings 6 be located at it is in the position provided with narrowing portion 210, Outside on the width of narrowing portion 210.In Fig. 3 A and Fig. 3 B, husky point is utilized respectively to represent a pair of sealings 6.This Outside, a pair of sealings 6 are formed by the compression unit of multiple point-like, and in the present embodiment, top flat 3 and second 4 are fused to the pressure Contracting portion.

Thus, two legs, can not only be by the folding from top flat 3 before by the contact from absorbent core 21 Return the contact at portion 32 and the both ends of second 4, additionally it is possible to by the contact from a pair of sealings 6, due to not Can directly by the contact from absorbent core 21, therefore can more relax that two legs are subject to from absorbent core 21 Contact.

In addition, top flat 3 and the rigidity of second 4 uprise in the opening position provided with a pair of sealings 6, therefore, exist in two legs When on width to 1 applying power of sanitary napkin, the reflex part 32 of top flat 3 and the both ends of second 4 are easily with a pair of sealings 6 Erect or decline in a thickness direction for starting point.Thus, the entire surface or decline that two legs can be erected on the comfortable thickness direction Entire surface by contact, therefore the contact from top flat 3 and second 4 that two legs are subject to can be relaxed, so as to The indisposed sense brought to hip crotch can more be suppressed.

In addition, a pair of sealings 6 not necessarily have to be located at it is in whole positions provided with narrowing portion 210, narrowing portion 210 Outside on width, as long as being located at least in the position of the farthest constriction of narrowing portion 210, narrowing portion 210 Width on outside.

As shown in Figure 3 A and Figure 3 B, absorber 2, top flat 3 and second 4 utilize the 1st compression unit 71 and the 2nd compression unit 72 Compress and be joined together in a thickness direction.As absorber 2, top flat 3 and second 4 compression method, can include Such as heat embossing processing.In the present embodiment, multiple recesses of the 1st compression unit 71 and the 2nd compression unit 72 are with constant interval Arrangement form, but this is not limited to, for example can also continuously it be arranged by multiple recesses to be formed as groove shape.

As shown in figure 1, a pair of the 1st compression units 71 formed in a manner of extending along its length arrange in the direction of the width Ground be located at provided with narrowing portion 210 position, be formed as heart-shaped configuration the 2nd compression unit 72 be respectively arranged on it is more forward than narrowing portion 210 Side or position rearward.

As shown in Figure 3 A and Figure 3 B, the two-end part of second 4 than the 1st compression unit 71 and the 2nd compression unit 72 in leaning on width The position in the outside on direction.Thus, the both ends of second 4 do not utilize the 1st compression unit 71 and the 2nd compression unit 72 and absorber 2nd, top flat 3 engages, and therefore, at the both ends of second 4, the free degree increase of fiber, the sense of touch that two legs are subject to improves, so as to The indisposed sense brought to hip crotch can more be suppressed.In Fig. 3 A and Fig. 3 B, the 1st compression unit 71 and the 2nd is shown using shade Compression unit 72.

In the present embodiment, as shown in figure 1, the position of the farthest constriction in narrowing portion 210, self-absorption Distance L1 untill outer rim on the width of core 21 plays the line 32b that turns back of top flat 3 is longer than the width of self-absorption core 21 Outer rim on direction plays the distance L2 untill the outer rim on the width of the 1st compression unit 71.Thus, top flat 3 and second 4 In the part not engaged by the 1st compression unit 71, i.e. the larger part of the free degree of fiber leaning on width side than absorbent core 21 The position increase in upward outside, therefore, the sense of touch that two legs are subject to improves, and can more suppress the indisposed sense brought to hip crotch.

As shown in Figure 3 A and Figure 3 B, egative film 5 is along thickness by using the 5th junction surface 15 by main leaf 51 and a pair of lateral plates 52 Direction is joined together and formed.Main leaf 51 is formed by the film etc. that synthesizes of opaque liquid, its on the thickness direction most by non- The position of skin side.A pair of lateral plates 52 are formed by non-woven fabrics of softness etc., and it is located at than main leaf 51 by the skin on thickness direction The position of side.More specifically, a pair of lateral plates 52 be configured in a thickness direction the top ends 320 of the reflex part 32 of top flat 3 with Between main leaf 51.

A pair of lateral plates 52 are engaged in the top ends 320 of the reflex part 32 of top flat 3 using a pair of the 4th junction surfaces 14.A pair the 4th Junction surface 14 is located at positions of the line 32b by the inner side on width of turning back than top flat 3.

As shown in Figure 3A, main leaf 51 and lateral plate 52 have reflex part 32 than top flat 3 to width side in middle section 1a The part that upward outside extends out, using the extension formed with alar part 10.

As described, because top flat 3 and egative film 5 are leaned on width using the line 32b that turns back being located at than top flat 3 A pair of the 4th junction surfaces 14 of the position of side are joined together, therefore, outer on width being leaned on than a pair of the 4th junction surfaces 14 The position of side, top flat 3 and egative film 5 are not joined together in a thickness direction.Thus, the stretching for being used to be formed alar part 10 of egative film 5 Part is not engaged in top flat 3.Thus, rolled over by the extension of alar part 10, i.e. egative film 5 to the non-skin lateral bending on thickness direction And when being worn on underwear, top flat 3 can be avoided as egative film 5 is stretched such state of affairs, so as to suppress to defend in dress The indisposed sense brought during raw towel 1 to hip crotch.

In addition, alar part 10 must not necessarily be formed by main leaf 51 and lateral plate 52, as long as at least middle section 1a, lateral plate 52 Formed in a manner of the position in the outside that the reflex part 32 reached than top flat 3 is leaned on width, so as to form alar part 10 i.e. Can.

As shown in Fig. 2 in the non-skin side of main leaf 51, the main body bonding part 16a of the banding extended along its length is set In the part suitable with the planar portions 31 (reference picture 1) of top flat 3, and a pair of wing bonding part 16b are located at suitable with a pair of alar parts 10 Part.When using sanitary napkin 1, main body bonding part 16a is pasted on to the inner side of the lower crotch of underwear, and by a pair of alar parts 10 Rolled over to non-skin lateral bending and a pair of wing bonding part 16b are pasted on to the outside of lower crotch, so as to which sanitary napkin 1 is fixed on into underwear.

1st junction surface 11, the 2nd junction surface 12, the position relationship of the 3rd junction surface 13 and the 4th this several person of junction surface 14

Next, reference picture 3A, Fig. 3 B and Fig. 4 illustrate the 1st junction surface 11, the 2nd junction surface 12, the 3rd junction surface 13 with And the 4th this several person of junction surface 14 position relationship.

Fig. 4 is to represent a pair of the 4th central joint 14a, a pair of the 4th front junction surface 14b and a pair of the 4th rear engagements The approximate vertical view of portion 14c position relationship.

As shown in Figure 3 A and Figure 3 B, for by any two component in absorber 2, top flat 3, second 4 and egative film 5 Junction surface, i.e. the 1st junction surface 11, the 2nd junction surface 12, the 3rd junction surface 13 and the 4th junction surface 14 being bonded with each other is located at Than positions of the line 32b by the inner side on width of turning back of top flat 3.Thus, in the reflex part 32 of top flat 3, the freedom of fiber Degree increase, therefore, when using sanitary napkin 1, the sense of touch that two legs are subject to improves, and can suppress the indisposed sense brought to hip crotch.This Outside, the 1st junction surface 11, the 2nd junction surface 12, the 3rd junction surface 13 and the 4th junction surface 14 not necessarily have to be located at than top flat 3 Positions of the line 32b that turns back by the inner side on width.

In addition, for by top flat 3 and second 4, articulate 1st junction surface 11 to be located at than second in a thickness direction Position of the both ends of piece 4 by the inner side on width.Thus, at the reflex part 32 of top flat 3 and the both ends of second 4, Because top flat 3 and second 4 are not joined together in a thickness direction, therefore, the free degree increase of fiber, sanitary napkin 1 is being used When, the sense of touch that two legs are subject to improves, and can more suppress the indisposed sense brought to hip crotch.

As shown in Fig. 3 A, Fig. 3 B and Fig. 4, top flat 3 and egative film 5 are connect for articulate a pair the 4th in a thickness direction Conjunction portion 14 is respectively arranged on this 3 regions of middle section 1a, front region 1b and rear area 1c.In the following description, will The middle section 1a at a pair of the 4th junction surfaces 14 part is set to a pair of the 4th central joint 14a, by a pair the 4th junction surfaces 14 Front region 1b part is set to a pair of the 4th front junction surface 14b, by the rear area 1c at a pair of the 4th junction surfaces 14 part It is set to a pair of the 4th rear junction surface 14c.

A pair of the 4th central joint 14a are located at middle section 1a, a pair the 4th centers in a manner of extending along its length The one end of junction surface 14a length direction extends to front region 1b, and its other end extends to rear area 1c.A pair 4 front junction surface 14b are located at front region in a manner of extending along its length towards middle section 1a sides from the end of front side 1b.A pair of the 4th rear junction surface 14c are located in a manner of extending along its length towards middle section 1a sides from the end of rear side Rear area 1c.

Thus, as shown in figure 4, a pair the 4th front junction surface 14b position and a pair of the 4th rear junction surface 14c position Put overlapping in the longitudinal direction with least a portion in a pair of the 4th central joint 14a position.In the frequency contacted with two legs The higher middle section 1a sides of rate, a pair the 4th front junction surface 14b position and a pair of the 4th rear junction surface 14c position It is overlapping in the longitudinal direction with a pair of the 4th central joint 14a position, so as to be applied when sanitary napkin 1 is worn from two legs In the case of having added the power on width, the engagement between top flat 3 and egative film 5 is also difficult to peel off.

In addition, both can be, a pair the 4th front junction surface 14b position and a pair of the 4th rear junction surface 14c position Put with a pair of the 4th central joint 14a position it is a part of overlapping as in the present embodiment or, such as a pair the 4th Central joint 14a is on the whole length direction of sanitary napkin 1, position overall a pair the 4th front junction surface 14b and a pair The position overall 4th rear junction surface 14c location overlap with a pair of the 4th central joint 14a respectively.

In addition, as shown in figure 4, a pair the 4th front junction surface 14b as the inner side on length direction it is end, in The constriction that the end 140b of centre region 1a sides is configured at the side on the front of the narrowing portion 210 of absorbent core 21 in the longitudinal direction is opened Beginning position 210b.Similarly, a pair of the 4th rear junction surface 14c end, the middle section as the inner side on length direction The end 140c of 1a sides is configured at the constriction starting position 210c of the side rearward of narrowing portion 210 in the longitudinal direction.

In the present embodiment, a pair of the 4th front junction surface 14b end 140b is configured at the constriction start bit of front side 210b is put, a pair of the 4th rear junction surface 14c end 140c is configured at the constriction starting position 210c of rear side, but and unlimited In this or, a pair of the 4th front junction surface 14b end 140b is configured at the constriction starting position 210b than front side The position of (center side) in the inner part, a pair of the 4th rear junction surface 14c end 140c are configured at the constriction start bit than rear side Put 210c (center side) in the inner part position.

Thus, due to a pair of the 4th front junction surface 14b end 140b and a pair of the 4th rear junction surface 14c end 140c is located at the region provided with narrowing portion 210, therefore, from two legs to the portion provided with narrowing portion 210 when sanitary napkin 1 is worn In the case of dividing the power being applied with width, the engagement between top flat 3 and egative film 5 is also more difficult to peel off.

In addition, in a pair of the 4th front junction surface 14b and a pair of the 4th rear junction surface 14c, as long as a centering is at least End 140b, the 140c at one junction surface are configured at constriction starting position 210b, 210c or are configured at than constriction starting position The position of 210b, 210c in the inner part.

As shown in Fig. 3 A, Fig. 3 B and Fig. 4, a pair of the 4th front junction surface 14b and a pair of the 4th rear junction surface 14c are located at Positions of than a pair the 4th central joint 14a by the outside on width.In other words, a pair of the 4th central joint 14a positions In the position than a pair of the 4th front junction surface 14b and a pair of the 4th rear junction surface 14c by the inner side on width.

Thus, in the higher middle section 1a of the frequency contacted with two legs, a pair the 4th central joint 14a be located at than The position for the inner side that a pair of the 4th front junction surface 14b and the 4th rear junction surface 14c are leaned on width, so as to larger Region ensure the part suitable with the reflex part of top flat 3 32.Therefore, two legs are by the contact from absorber 2 Before can be from the bigger face of the top flat 3 more soft than absorber 2 by contact, can relax that two legs are subject to carrys out self-absorption The contact of body 2, help to suppress the indisposed sense brought to hip crotch.

On the other hand, after a pair the 4th in a pair of the 4th front junction surface 14b and rear area 1c in front region 1b Positions of the square junction surface 14c positioned at than a pair the 4th central joint 14a by the outside on width, thereby, it is possible to ensure to make For face, top flat 3 the planar portions 31 (reference picture 1, Fig. 3 A and Fig. 3 B) by skin side for absorbing the liquid such as menses Flat shape and the absorption area for further ensuring that liquid, so as to help to suppress the leakage of liquid.

===other===

Above-mentioned embodiment is recorded for ease of understanding the present invention, is not used to restrictively explain this hair It is bright.Self-evident, the present invention can be changed on the premise of its purport is not departed from, improved, and be included in the present invention It is equally invented.

Description of reference numerals

1st, sanitary napkin (absorbent commodity)；1a, middle section；1b, front region；1c, rear area；2nd, absorber；3、 Top flat；4th, second；5th, egative film；6th, sealing；11st, the 1st junction surface (junction surface)；14th, 14a, 14b, 14c, the 4th junction surface (a pair of engaging portion)；21st, absorbent core；32nd, reflex part；52nd, lateral plate；140b, 140c, middle section side end (inner side End)；210th, narrowing portion；210b, 210c, constriction starting position；320th, top ends；400th, the region being folded back；400a, top End；S, gap.

Claims

1. a kind of absorbent commodity, it has length direction, width and thickness direction,

The absorbent commodity includes：Absorber, it is used to absorb liquid；

Top flat, the side on its described thickness direction from the absorber cover the absorber；And

Egative film, its opposite side on the thickness direction of the absorber, the absorbent commodity is characterised by,

Both sides of the top flat on the width have the reflex part to turn back,

The top ends of the reflex part by between the absorber and the egative film along the width arrange a pair Junction surface is engaged in the egative film on the thickness direction,

Part in front region and the pair of junction surface on the length direction at the pair of junction surface The length direction on rear area in part be respectively positioned on the length direction than the pair of junction surface Middle section in part by the outside on the width position.

2. absorbent commodity according to claim 1, it is characterised in that

The position of the part of the front region at the pair of junction surface and the pair of junction surface it is described in Entreat a part for the position of the part in region overlapping on the length direction, the rear area at the pair of junction surface A part for the position of the part of the middle section at the position of the part in domain and the pair of junction surface is in the length Spend overlapping on direction.

3. absorbent commodity according to claim 1 or 2, it is characterised in that

The absorber includes absorbent core, and the absorbent core at least has on the width in the middle section The narrowing portion of inner side constriction.

4. absorbent commodity according to claim 3, it is characterised in that

The part of the front region at the pair of junction surface and the rear area at the pair of junction surface The end in the inner part of at least one of part the constriction start bit of the narrowing portion is configured on the length direction Put or be configured at the position in the inner part than the constriction starting position.

5. absorbent commodity according to claim 1 or 2, it is characterised in that

The egative film has lateral plate in the middle section, and the lateral plate is with the reflex part than the top flat to the width side The mode that upward outside is extended is formed.

6. absorbent commodity according to claim 1 or 2, it is characterised in that

There is second between also on the thickness direction, the described absorber of the absorbent commodity and the top flat,

In middle section at least on the length direction, the both ends on the width of described second are described On width between the absorber and the top flat.

7. absorbent commodity according to claim 6, it is characterised in that

The absorber includes absorbent core, and the absorbent core at least has on the width in the middle section The narrowing portion of inner side constriction,

In the middle section, it is provided between the end and the absorbent core on the width of described second Gap.

8. absorbent commodity according to claim 7, it is characterised in that

The both ends of described second include the region turned back to the place side of the absorber.

9. absorbent commodity according to claim 6, it is characterised in that

For by the top flat and it is described second on the thickness direction articulate junction in than described second Position of the both ends of piece by the inner side on the width.

10. absorbent commodity according to claim 6, it is characterised in that

The top flat and second both sides on the width on the thickness direction by compressing section compresses and It is joined together,

Position of the compression unit at least in the at utmost constriction of the narrowing portion is located at the width of the narrowing portion On outside.