CN106163471B - Disposable diaper - Google Patents

Abstract

In disposable diaper (1), the position of the maximum width (Wnax) than absorber (2C) by product width direction (W) outside position be equipped with can be flexible along product length direction (L) at least a pair of leg circumference elastic component (3), than calf circumference elastic component (3) by product width direction (W) inside and the maximum width (Wmax1/Wmax2) than absorber (2C) position by product width direction (W) outside position be equipped with can be flexible along product length direction (L) at least a pair of inside elastic component (4), at abdomen side (F), necking part (2C1) reaches position of the range (R1) by the outside of product length direction (L) of the effective length than calf circumference elastic component (3), on product length direction (L), inner elastic structure The ora terminalis (E1) by abdomen side (F) of the effective length of part (4) is present in the range (R2) equipped with necking part (2C1) Nei.

Description

Disposable diaper

Technical field

The present invention relates to a kind of disposable diapers.

Background technique

In the past, in order to make the adhered shape of the shape of the absorber in disposable diaper and the body of wearer, there is known A technique for necking part is set on the part of the lower crotch region positioned at the disposable diaper of absorber.

Here, in the lower crotch region of the disposable diaper with the absorber provided with above-mentioned necking part, in order to improve Adaptation and wearing feeling are arranged the 1st in-leg along product length direction there is known one kind and enclose elastic component and in the 1st in-leg The technology that the 2nd in-leg encloses elastic component is arranged along product length direction in the inside enclosed in the product width direction of elastic component (for example, referring to patent document 1).

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2008-119416 bulletin

Summary of the invention

However, in above-mentioned disposable diaper, the 2nd in-leg encloses elastic component and is set in lower crotch region to be overlapped with absorber Region.

Here, lower crotch region is clipped and is born by the left and right leg of wearer when disposable diaper is worn on wearer The main part for being applied to absorber is carried, and is the part that absorber is easily deformed.

In above-mentioned disposable diaper, due to being overlapped with absorber in the i.e. lower crotch region in the part being easily deformed in this way Region along product length direction be equipped with the 2nd in-leg enclose elastic component, therefore, in lower crotch region, enclose elasticity in the 2nd in-leg Under the action of the power of members contract, absorber is deformed along product length direction, and existing causes absorber that can not play by the phase To absorbent properties such problems.

Then, the present invention is to be made into view of above-mentioned project, even if its purpose is to provide one kind in absorber Also absorber can be made to play the disposable diaper of desired absorbent properties in the case where being equipped with necking part.

The purport of 1st feature of the invention is, provides a kind of disposable diaper, which has mutually orthogonal Product length direction and product width direction, including top flat, egative film and be configured between the top flat and the egative film Absorber, regulation has back side and abdomen side in the product length direction, in the position of the maximum width than the absorber The position for resting against the outside of the product width direction is equipped at least a pair of leg circumference that can be stretched along the product length direction Elastic component, than at least a pair of leg circumference elastic component by the product width direction inside and than the absorber The position of maximum width by the product width direction outside position be equipped with can along the product length direction stretch At least a pair of inside elastic component, the absorber have necking part, and in the abdomen side, the necking part is reached than the leg The range of the effective length of elastic component is enclosed by the position in the outside of the product length direction, in the product length direction On, the ora terminalis by the abdomen side of the effective length of the inner elastic member is present in the range equipped with the necking part It is interior.

Detailed description of the invention

The top view that Fig. 1 is observed from the skin contact layer side of the disposable diaper of the 1st embodiment of the invention.

Fig. 2 is the X-X cross-sectional view of Fig. 1.

Specific embodiment

Illustrate the disposable diaper 1 of the 1st embodiment of the invention referring to Figures 1 and 2.

In addition, marking the same or similar appended drawing reference to the same or similar part in the record of attached drawing below. It is to be noted, however, that attached drawing is schematical content, ratio of each size etc. is different from the ratio of size of reality.

Thus reference should be made to the following description to judge specific size etc..In addition, also can include among the attached drawings The different part of relationship, the ratio of mutual size.

Fig. 1 is the top view for indicating the skin contact layer side from the disposable diaper 1 of present embodiment and observing, in Fig. 2 Indicate the X-X cross-sectional view of Fig. 1.

As shown in Figure 1, the disposable diaper 1 of present embodiment has mutually orthogonal product length direction L and product loose Spend direction W.In addition, the disposable diaper 1 of present embodiment has back side B and abdomen side F on product length direction L.

In addition, as depicted in figs. 1 and 2, the disposable diaper 1 of present embodiment has top flat 2A, egative film 2D and configuration Absorber 2C between top flat 2A and egative film 2D.

In addition, as shown in Fig. 2, in the disposable diaper 1 of present embodiment, it can be in the non-skin contact layer of egative film 2D Side is equipped with the non-woven fabric plate 2B of waterproofness.

As long as example, the construction for penetration by liquid such as top flat 2A non-woven fabrics, woven fabric, apertured plastic piece, mesh piece The material of sheet, is just not particularly limited.The fiber for constituting these materials can enumerate polyethylene (PE), polypropylene (PP), poly- pair The single fibers such as polyethylene terephthalate (PET), answering polyethylene and the polypropylene grafted fiber being polymerized, core sheath construction etc. Condensating fiber etc..

Absorber 2C has core covering and the absorbent core for absorbing liquid.Absorbent core contains hydrophilic fibre, height Absorbable polymer.As the example of hydrophilic fibre, the cellulose for crushing slurry, cotton etc., people can be used alone or as a mixture Make semisynthetic fibre element, the particle shaped polymer, fibre of regenerated cellulose, vinegar ester, triacetate of silk, rayon etc. etc. Tie up shaped polymer, thermoplasticity hydrophobic chemical fiber or the thermoplasticity hydrophobic chemical fiber for being applied with hydrophilicity-imparting treatment Deng.Wherein, the forming difficulty of low cost and absorber is considered, it is preferable to use crushing slurry.It can also use in hydrophily fibre Material made of polymeric absorbent body is mixed in dimension.

In addition, absorbent core is coated by core covering.For example, as core covering, at least a part of energy of skin contact layer side It is enough to use the various fabric nonwoven cloths or cotton paper sheets with liquid permeability, specifically, being able to use weight per unit area is 10g/ m²~30g/m²Hot wind fabric nonwoven cloth, spun-bonded non-woven fabrics, SMS non-woven fabrics, cotton paper sheets.

For example, egative film 2D is formed by the film of opaque liquid and moisture-inhibiting or moisture impermeability.

Here, as shown in Figure 1, in the disposable diaper 1 of present embodiment, corresponding with the lower crotch of wearer Lower crotch region, absorber 2C have the necking part 2C1 for the shape being recessed with concavity.

According to this structure, when dressing disposable diaper 1, disposable diaper 1 can be made with wearer by left and right leg packet What is fenced up is cross over the lower crotch fitting at back from abdomen.

In particular, can be avoided the absorption with rigidity by the region configured with necking part 2C1 for increasing abdomen side F Body 2C swells in the lower crotch of wearer and separates such situation with the body of wearer.

In addition, as depicted in figs. 1 and 2, it is wide in the maximum than absorber 2C in the disposable diaper 1 of present embodiment The position for spending outside of the position of Wmax1/Wmax2 on product width direction W can be along product length side equipped at least a pair The calf circumference elastic component 3 to stretch to L.

In addition, as depicted in figs. 1 and 2, in the disposable diaper 1 of present embodiment, being leaned on than the calf circumference elastic component 3 Inside on product width direction W and the position of the maximum width Wmax1/Wmax2 than absorber 2C are on product width direction W The position in outside be equipped at least a pair of inner elastic member 4 that can be stretched along product length direction L.

According to this structure, the body fit of inner elastic member 4 and wearer can effectively stop excreta and make to arrange Object is let out back to the side absorber 2C.In addition, being shunk by inner elastic member 4, absorber 2C can be made to continue and wear The body fit of person.

Thus, calf circumference elastic component 3 and inner elastic member 4 be configured on product width direction W not with absorber 2C The region of coincidence.

It according to this structure, can be in the deformation of the lower crotch region of disposable diaper 1 inhibition absorber 2C.

Specifically, as shown in Fig. 2, inner elastic member 4 can configure in the disposable diaper 1 of present embodiment Between egative film 2D and non-woven fabric plate 2B.

According to this structure, since there are egative film 2D, top flat 2A between the skin face and inner elastic member 4 of wearer Deng therefore, can be improved the resiliency in the skin face for wearer, the skin sense of touch of inner elastic member 4 can be made to become It is soft.

In addition, as shown in Figure 1, reaching ratio in abdomen side F, necking part 2C1 in the disposable diaper 1 of present embodiment Position of the range R1 of the effective length of calf circumference elastic component 3 by the outside of product length direction L.

According to this structure, when dressing disposable diaper 1, make calf circumference elastic component 3 and dress with not interfering absorber 2C The groin of person is bonded, and after having dressed disposable diaper 1, absorber 2C also is located at the inguinal position along wearer It sets, therefore, plays and enable a wearer to be easy effect as activity.As a result, it is possible to be effectively prevented abdomen stock of the urine from wearer Ditch leakage.

In addition, as shown in Figure 1, in the disposable diaper 1 of present embodiment, on product length direction L, inner elastic The ora terminalis E1 by abdomen side F of the effective length of component 4 is present in equipped in the range of necking part 2C1.

In addition, as shown in Figure 1, on product length direction L, calf circumference is elastic in the disposable diaper 1 of present embodiment The range R1 of the effective length of component 3 is configured to the range R2 long than the effective length of inner elastic member 4.

According to this structure, in order to which the part in the portion between the hip close to wearer is encased inside disposable diaper 1 securely, by setting It sets inner elastic member 4 and does not lean on the position of abdomen side F and back side B in the range R2 of the effective length than inner elastic member 4 It sets and carries calf circumference elastic component 3, abdomen side F and back side B can be depended in the range R2 of the effective length than inner elastic member 4 Position inhibit absorber C contraction, the leakage and the offset as caused by the contraction of absorber 3 that body fluid can be prevented.

Here, the range R1 of the effective length of calf circumference elastic component 3 is the state can stretch along product length direction L Range configured with calf circumference elastic component 3, the range R2 of the effective length of inner elastic member 4 are with can be along product length side The state stretched to L is configured with the range of inner elastic member 4.

In addition, as shown in Figure 1, in absorber 2C, being configured to make in the disposable diaper 1 of present embodiment The maximum width Wmax2 of back side B is shorter than the maximum width Wmax1 of abdomen side F.

According to this structure, urine can be absorbed with wider area efficient in abdomen side F.

In addition, as depicted in figs. 1 and 2, in the disposable diaper 1 of present embodiment, can than absorber 2C by production The position in the outside of product width direction W is equipped with leakage preventing wall 5.

Here, leakage preventing wall 5 can have the fixed part 5A for being fixed on top flat 2A and the structure in such a way that self-fixed department 5A is erected At rising portions 5B.Here, being equipped with elastic component in the free end of rising portions 5B.

In addition, as shown in Figure 1, can be in the disposable diaper 1 of present embodiment, the fixed part 5A of leakage preventing wall 5 with The distance between lateral margin on the product width direction W of absorber 2C Wf/Wb is configured to the distance of abdomen side (Wf) than back This of side (Wb) is apart from short.

According to this structure, the rising portions 5B of leakage preventing wall 5 back side B than abdomen side F it is easy erect, can expand and carry on the back The pocket (storage space) that portion side B is formed by the rising portions 5B and top flat 2A of leakage preventing wall, and the leakage that soft stool can be prevented etc..

In addition, can be in the disposable diaper 1 of present embodiment, the stress of inner elastic member 4 is configured to and leg Enclose elastic component 3 stress is identical or stress greater than calf circumference elastic component 3.

According to this structure, can make to be set to the inner elastic structure than calf circumference elastic component 3 closer to the region of absorber 2C Part 4 is properly bonded along the bumps of the body of wearer.

In addition, as shown in Figure 1, can be in the disposable diaper 1 of present embodiment, than being equipped with necking part 2C1's Two ora terminalis E2s of the range on the position in the outside of product length direction L, the product length direction of the rising portions 5B of leakage preventing wall 5 are solid Due to top flat 2A.

According to this structure, not be configured to be overlapped with the necking part 2C1 of the absorber 2C of the body fit of wearer The rising portions 5B in region, leakage preventing wall 5C is fixed on top flat 2A, and therefore, can play is difficult to leakage preventing wall 5 to product width direction W Outside topple over such effect.

In addition, as depicted in figs. 1 and 2, in the disposable diaper 1 of present embodiment, can be, inner elastic member 4 Two sides on the product width direction W of the fixed part 5A of leakage preventing wall 5.

According to this structure, the fixed part 5A of leakage preventing wall 5 can be helped to shrink along product length direction L, make the vertical of leakage preventing wall 5 It plays portion 5B to be easy to erect, and can be improved the stickiness of the free end of the rising portions 5B of leakage preventing wall 5 and the body of wearer.

More than, it is described in detail by the present invention using above-mentioned embodiment, but to those skilled in the art, do not say And explain, the present invention is not limited to the embodiments illustrated in this specification.The present invention can be wanted without departing from by right Implement as amendment and mode of texturing with seeking the spirit and scope of the invention defined by the record of book.Thus, this specification Record be for illustrative purposes, to the present invention and do not have any restrictions the meanings.

In addition, Japanese Patent, which goes out, is willing to that the full content of No. 2014-080287 (application on April 9th, 2014) passes through ginseng According to being programmed into this specification.

Industrial availability

Be capable of providing it is a kind of even if in the case where absorber is equipped with necking part, can play desired absorbent properties Disposable diaper.

Description of symbols

1, disposable diaper；2A, top flat；2B, non-woven fabric plate；2C, absorber；2C1, necking part；2D, non-woven fabric plate；3, Calf circumference elastic component；4, inner elastic member；5, leakage preventing wall；5A, fixed part；5B, rising portions.

Claims (5)

1. a kind of disposable diaper,

The disposable diaper has mutually orthogonal product length direction and product width direction, including top flat, egative film and matches The absorber being placed between the top flat and the egative film,

The disposable diaper is characterized in that,

Regulation has back side and abdomen side in the product length direction,

Being equipped in the position of the maximum width than the absorber by the position in the outside of the product width direction can be along institute The flexible at least a pair of leg circumference elastic component of product length direction is stated,

Than at least a pair of leg circumference elastic component by the product width direction inside and than the maximum of the absorber The position of width is equipped with by the position in the outside of the product width direction can be flexible at least along the product length direction A pair of inside elastic component,

The absorber has necking part,

In the abdomen side, the necking part reaches longer by the product than the range of the effective length of the calf circumference elastic component The position in the outside in direction is spent,

In the product length direction, the ora terminalis by the abdomen side of the effective length of the inner elastic member is present in In the range of the necking part,

In the absorber, the maximum width for being configured to the back side is shorter than the maximum width of the abdomen side,

It is being equipped with leakage preventing wall by the position in the outside of the product width direction than the absorber,

The leakage preventing wall has the fixed part for being fixed on the top flat and is configured to the rising portions erected from the fixed part,

Lateral margin on the fixed part of the abdomen side, described leakage preventing wall and the product width direction of the absorber The distance between than the back side, described leakage preventing wall the fixed part and the absorber the product width direction On the distance between lateral margin it is short.

2. disposable diaper according to claim 1, which is characterized in that

The stress of the inner elastic member is configured to identical as the stress of the calf circumference elastic component or is greater than the calf circumference bullet The stress of property component.

3. disposable diaper according to claim 1 or 2, which is characterized in that

In the range than being equipped with the necking part by the position in the outside of the product length direction, the described of the leakage preventing wall is stood Two ora terminalis in the product length direction in the portion of rising are fixed on the top flat.

4. disposable diaper according to claim 1 or 2, which is characterized in that

The inner elastic member is set to the two sides in the product width direction of the fixed part of the leakage preventing wall.

5. disposable diaper according to claim 3, which is characterized in that

The inner elastic member is set to the two sides in the product width direction of the fixed part of the leakage preventing wall.