CN1726891A - Pull-on disposable diaper - Google Patents
Pull-on disposable diaper Download PDFInfo
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- CN1726891A CN1726891A CN 200510084588 CN200510084588A CN1726891A CN 1726891 A CN1726891 A CN 1726891A CN 200510084588 CN200510084588 CN 200510084588 CN 200510084588 A CN200510084588 A CN 200510084588A CN 1726891 A CN1726891 A CN 1726891A
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Abstract
A pull-on disposable diaper 1 has, between a waist opening 5 and leg openings 6, a region 71 having a width of 15 to 35 mm in each of a front section A and a rear section B. The region 71, while worn by a wearer, applies a pressure of 1.1 to 2.5 kPa to the wearer's body. With the diaper 1 opened and stretched out, the distance from the longitudinal centerline of the diaper to the widthwise middle of the region 71 in the front section A is 180 to 220 mm, and the distance from the longitudinal centerline of the diaper to the widthwise middle of the region 71 in the rear section B is 180 to 220 mm. A waist portion around the waist opening 5, while worn by a wearer, applies a pressure of 0.3 to 1.5 kPa to the wearer's body.
Description
Technical field
The present invention relates to pull-on disposable diaper, particularly the pull-on disposable diaper of using about the child.
Technical background
In pull-on disposable diaper, known between waist opening portion and leg opening part, disposed the pull-on disposable diaper of the elastomeric element that extends at the width of diaper.For example, proposed a kind of like this pull-on disposable diaper: it is the boundary that the side of abdominal part at least of diaper has front-end edge with core body, the 1st waist peripheral region that marks off with the scope of maximum up and down each 20mm and the 2nd waist peripheral region that is divided out between the 1st waist peripheral region and leg opening part, and the arrangement pitch size separately of the elastomeric element of the 1st waist peripheral region is than the arrangement pitch size separately of the elastomeric element of the 2nd waist peripheral region little (with reference to Japanese patent laid-open 9-84826 communique).This diaper is to make that to decide the surface pressure of area in each of the 1st waist peripheral region and the 2nd waist peripheral region equal in fact, and about the close property to skin, make the 1st waist peripheral region better, do not leak thereby do not damage the wearing feeling of diaper and prevent than the 2nd waist peripheral region.
And also known a kind of like this pull-on disposable diaper (opening flat 6-421 communique with reference to Japan Patent is real) make setting at interval along with narrowing down gradually to waist opening portion of elastomeric element, thereby strong contractility acts on the top of wearer's waist portion hipbone.
But, in these diapers, because apply the pressure of tying tight by force, so the problem that is difficult to make in the diaper dress is arranged in waist opening portion.And diaper dislocation tenesmus in dress (ず れ fall Chi), outward appearance descend, and then the wearer is difficult to activity because of the dislocation tenesmus, and can produce the problems such as leakage of urine and stool.
Summary of the invention
The invention provides a kind of pull-on disposable diaper with waist opening portion and a pair of leg opening part (below, what refer to when saying the 1st invention is exactly this invention).Between the veutro portion and drosal part above-mentioned waist opening portion and above-mentioned leg opening part separately of diaper, have the zone that the pressure of diaper when wearing is set to 1.1～2.5kPa, and width that should the zone is 15～35mm.Under the deployed condition of diaper, the distance of the center of the above-mentioned zone from the length direction centrage to veutro portion is 180～220mm, and the distance of the center of the above-mentioned zone from the length direction centrage to drosal part is 180～220mm.The pressure of the above-mentioned waist opening portion when diaper is worn is set to 0.3～1.5kPa.
And, the invention provides a kind of diaper wearing method that will have the pull-on disposable diaper of waist opening portion and a pair of leg opening part to wearer's dress.In the method, after the diaper dress, by predetermined mechanism will with wearer's crista iliaca (Intestinal bone rib) to anterior superior iliac spine (Shang Qian Intestinal bone sour jujube) position of the corresponding diaper in position tied tight so that the pressure of wearing at wearer's described position becomes 1.1～2.5kPa.
And then the invention provides another pull-on disposable diaper (below, say that the 2nd invention the time refers to this invention) with waist opening portion and a pair of leg opening part.The total length of the diaper length direction of deployed condition is 440～530mm, and the length of the side seals of the diaper of deployed condition is 90～140mm.On the diaper of engagement state, to draw the imaginary cut-off rule of 4 five equilibriums from above-mentioned waist opening portion in the longitudinal direction to the zone of above-mentioned leg opening part, when imagination when this waist opening portion one side is followed successively by the 1st zone, the 2nd zone, the 3rd zone, the 4th zone, pressure mean values when the diaper in the 2nd zone is worn is set to 0.9～1.8kPa, and maximum is smaller or equal to 2.5kPa.And the pressure the when diaper in the 1st zone and the 3rd zone is worn is set to lower than the 2nd zone.
Description of drawings
Fig. 1 is the axonometric chart that an embodiment of the 1st pull-on disposable diaper of inventing is shown.
Fig. 2 is the exploded perspective view that assembling diaper shown in Figure 1 state before is shown
Fig. 3 is the vertical view of deployed condition that the outer packaging material of Fig. 2 is shown.
Fig. 4 is the key diagram that ilium is shown.
Fig. 5 is the key diagram of computational methods of dislocation bearing down that wearer's waist place is shown.
Fig. 6 is the key diagram that anterior superior iliac spine height front and back measurement of length method is shown.
Fig. 7 (a) is the axonometric chart that another embodiment of diaper of the present invention is shown, and Fig. 7 (b) is the vertical view that the deployed condition of diaper shown in Fig. 7 (a) is shown.
Fig. 8 is an embodiment, the vertical view under deployed condition that the diaper of the 2nd invention is shown.
Fig. 9 is another embodiment, the vertical view under deployed condition that diaper of the present invention is shown.
Figure 10 (a) and Figure 10 (b) are the vertical views that illustrates under the deployed condition of another embodiment of diaper of the present invention.
Figure 11 (a) and Figure 11 (b) are the vertical views that illustrates under the deployed condition of another embodiment of diaper of the present invention.
The specific embodiment
Below, with reference to accompanying drawing on one side according to its preferred implementation the present invention be described on one side.And in the following description, so-called " the present invention " based on context refers to the 1st invention or the 2nd invention or the two invention.The axonometric chart of an embodiment of the pull-on disposable diaper of the 1st invention shown in Fig. 1.The exploded perspective view of the state before the diaper shown in Figure 1 of assembling shown in Fig. 2.The vertical view of the deployed condition of the outer packaging material of Fig. 2 shown in Fig. 3.And in the following description, the deployed condition of so-called diaper is meant the state of the side seals of diaper before being engaged, and connects with state and is meant state after side seals is engaged.
The diaper 1 of present embodiment has the absorber body 10 of lengthwise in fact and is configured in the outer packaging material 11 of back-sheet 3 one sides of this absorber body 10; This absorber body 10 have liquid permeability surficial sheets 2, water proofing property back-sheet 3 and be sandwiched in the absorbent core (コ ア) 4 of the liquid retainability of configuration between two sheet materials 2,3.
As shown in Figure 2, the side pad (カ Off ス) 8,8 of the material of no liquid-proof and water proofing property and breathability formation is formed on the left and right sides of the length direction of absorber body 10.Each side pad 8 has along the anchor portion and the free end of the length direction of absorber body 10.Anchor portion is fixed on the surficial sheets 2.And then anchor portion and free end are fixed on the surficial sheets 2 on the length direction both ends (end of above-below direction among Fig. 3) of absorber body 10.On the other hand, side pad elastomeric element 81 with elongation state be configured in free end near.Thus, when wearing the diaper 1 that is assembled as shown in Figure 1, by the contraction of elastomeric element 81, the side pad erects, thereby stops the liquid outflow to the width of absorber body 10.
The rear and front end portion of packaging material 11 outside, along the front and back end edge, a plurality of waist elastic members 51,51 are configured in its whole width.Each waist elastic members 51,51 is held fixing under extended state via outer non-woven fabrics 12 and internal layer non-woven fabrics 13.Each waist elastic members 51,51, at the both sides of the edge B1 of both sides of the edge A1, the A2 of the A of veutro portion that makes diaper 1 and drosal part B, when B2 is bonded with each other, the end of two elastic portion spare 51,51 is configured to overlap each other, or the end of two elastic portion spare 51,51 is configured to the bonding part of both sides of the edge continuously.Thus, as shown in Figure 1, in fact the waist gauffer of ring-shaped continuous (ギ ャ ザ one) be formed on diaper 1 waist opening portion 5 near.
Leg elastic members 61a, 61b are configured on the bending section of the left and right sides of outer packaging material 11.Each leg elastic members 61a, 61b are configured along above-mentioned bending section.Each leg elastic members 61a, 61b are configured between outer non-woven fabrics 12 and the internal layer non-woven fabrics 13, and the engagement means by predetermined is fixed under extended state on two non-woven fabrics 12,13.Each leg elastic members 61a, 61b, one end overlap at lower crotch C place each other.On the other hand, the other end is to become terminal in the position of each lateral edges of A of veutro portion and drosal part B.Each leg elastic members 61a, 61b, at the both sides of the edge B1 of both sides of the edge A1, the A2 of the A of veutro portion that makes diaper 1 and drosal part B, when B2 has been bonded with each other, the end of two elastic portion spare 61a, 61b is configured to overlap each other, or the end of two elastic portion spare 61a, 61b is configured to two bonding parts continuously.Thus, as shown in Figure 1, in fact the leg creases of ring-shaped continuous be formed on diaper 1 leg opening part 6,6 near.
In diaper 1, between a plurality of abdominal part side A and back side B waist opening portion 5 and leg opening part 6 separately that are configured in diaper 1 at the elastomeric element that extends on the width of diaper 1.By the configuration elastomeric element, be formed between waist opening portion 5 and the leg opening part 6 along the 71 and the 2nd zone 72, the 1st zone that diaper 1 width extends.The 1st elastomeric element 71a is configured in the 1st zone 71, and the 2nd elastomeric element 72a is configured in the 2nd zone 72.The 1st zone 71 is between waist opening portion 5 and leg opening part 6, and the 2nd zone 72 is between the 1st zone 71 and leg opening part 6.
The 1st elastomeric element 71a and the 2nd elastomeric element 72a are held fixing under extended state via outer non-woven fabrics 12 and internal layer non-woven fabrics 13.The 1st elastomeric element 71a, at the both sides of the edge B1 of both sides of the edge A1, the A2 of the A of veutro portion that makes diaper 1 and drosal part B, when B2 has been bonded with each other, the end of the 1st elastomeric element 71a of the A of veutro portion and the 1st elastomeric element 71a of drosal part B is configured to overlap each other, or the end of each elastomeric element 71a, 71a is configured to two coupling parts.About the 2nd elastomeric element 72a also is same.Thus, as shown in Figure 1, gauffer is respectively formed in the 71 and the 2nd zone 72, the 1st zone of the A of veutro portion of diaper 1 and drosal part B (not shown).
The 1st elastomeric element 71a and the 2nd elastomeric element 72a are extending between the edge, the left and right sides of the edge, the left and right sides (edge, the left and right sides of packaging material 11 promptly) of whole diaper 1 and absorbent core 4.And on absorbent core 4 existing positions, the 1st elastomeric element 71a and the 2nd elastomeric element 72a do not exist in fact.Its result is formed on the 1st gauffer of zone on the 71 and the 2nd zone 72 between the edge, the left and right sides of the edge, the left and right sides of diaper 1 and absorbent core 4, does not form gauffer in fact on the position that absorbent core 4 exists.Thus, even wearing under the state, the position that absorbent core 4 exists, outer packaging material can not shrink because of the contraction of the 1st elastomeric element 71a and the 2nd elastomeric element 72a yet, thus the aesthetic appearance of diaper 1, absorbability are all good.
As each elastomeric element in the diaper 1 of present embodiment, the preferred respectively parts that the retractility material of natural rubber, polyurethanes resin, foamed polyurethane resinoid, flexible nonwoven fabrics or hot melt class extensible member etc. formed thread (rubber thread), banded (rubber strip), netted (netted) or film like that use.
So in the diaper 1 of present embodiment, the pressure during the wearing of the diaper 1 in the 1st zone 71 is set to 1.1～2.5kPa.The 1st zone 71 preferably is formed in when diaper 1 is gone up in dress and is connected to wearer's crista iliaca to the position (the following ilium zone that also claims) of anterior superior iliac spine.Crista iliaca and anterior superior iliac spine are anatomical terms.So-called crista iliaca is the position shown in the 9a among Fig. 4, and anterior superior iliac spine is position shown in the 9b among the same figure.In the past, think in order to prevent the dislocation tenesmus of Briefs type diaper in dress, particularly in order to prevent that the child from dropping with the dislocation of pull-on disposable diaper in dress, raising is at the pressure of tying tight of the elastomeric element of waist opening portion configuration, by this waist opening portion the Briefs type diaper being close on wearer's the health is effectively (for example, to open flat 6-421 communique with reference to foregoing reality).But present inventors study the back and find: in order to prevent the dislocation tenesmus of Briefs type diaper in dress effectively, compared with the pressure of tying tight that improves waist opening portion, be only more effective more in the past than the pressure of tying tight that improved more corresponding to the diaper position in wearer's ilium zone.Its reason is, the wearer is the child particularly, feature as its health is that abdominal part is outstanding on every side, if improve the pressure of tying tight that butt is somebody's turn to do outstanding abdominal part waist opening portion on every side, then, slide into the position that abdominal part attenuates on every side up to this waist opening subordinate owing to the very high waist opening portion that makes of this pressure of tying tight is squeezed into gradually.
Fig. 5 shows the state of the circular cone that the health with the baby is considered as.θ represents the vertical line of the tangent line located with respect to waist (some A) and towards the horizontal line angulation at the center of health, F represents the elastomeric power of tying tight among the figure, and P represents the frictional force that F causes, f1 is the dislocation bearing down that expression F causes, f2 represents vertical resistance.Here, because f1=Fsin θ, and P=vN=vf2=vFcos θ (v represents coefficient of friction) is so downwards dislocation bearing down Z represents with following formula at an A place.
Z＝f1-P＝Fsinθ-vFcosθ＝F(sinθ-vcosθ)
Be appreciated that from this formula the power of tying tight (F) big shearing bearing down more is also big more under the situation of the state that waist generation dislocation drops.
As mentioned above, the pressure when the wearing of the diaper 1 in the 1st zone 71 is 1.1～2.5kPa.Pressure during the wearing of the diaper 1 in the 1st zone 71 is difficult to the 1st zone 71 of diaper 1 is fixed on wearer's ilium zone during less than 1.1kPa, and the non-constant of outward appearance of the diaper 1 under the state is worn in its diaper 1 dislocation tenesmus as a result.Particularly, the hypertrophy at the lower crotch C place of diaper 1 (だ ぶ つ I) becomes significantly, and becomes the reason of urine and stool leakage.On the other hand, when the pressure during the wearing of the diaper 1 in the 1st zone 71 surpasses 2.5kPa, except the wearer's that excessively ties tight health, the dress of the diaper 1 operation difficulty that also becomes.From the dislocation tenesmus that further prevents diaper 1 effectively or further improve the outward appearance of the diaper 1 under the state of dress and the viewpoint of wearing operation convenience of diaper 1, pressure during the wearing of the diaper 1 in the 1st zone 71 is preferably 1.1～2.0kPa, is more preferably 1.2～1.8kPa.
Pressure during the wearing of the diaper 1 in the 1st zone 71 can for example material, thickness, percentage elongation or the configuration space of the 1st elastomeric element 71a be controlled by adjusting.
Pressure when the wearing of the diaper 1 in the 1st zone 71 is that diaper 1 is worn on the cylinder that girth is 500mm, and pressure gauge (the contact pressure measuring instrument (AMI3037-2) of (strain) AMITEC company manufacturing) measures by wear.Concrete measuring method is as described below.
[measuring method of the pressure in the 1st zone 71]
Use the air bag (Air pack) of φ=15mm, the leading section that is centered close to waist opening portion of air bag is set, measure and wear pressure (P1).The position that the diaper width of air bag is set is the approximate centre (with reference to Fig. 3) at the edge, the left and right sides of the edge, the left and right sides of diaper and absorbent core 4.Then make the center of air bag move 5mm, measure and wear pressure (P2) at the length direction of diaper 1.Similarly, every interval 5mm measures, obtain P3, P4, P5 ... Pn.The measurement of P1 to Pn is to carry out in the engaged each other scope of the left and right sides portion of leg opening part in the waist opening portion from outer packaging material 11.P1 to Pn is in veutro portion, and each 2 amount to 4 point measurements about carrying out.With their meansigma methods as the pressure of wearing of veutro portion.Similarly, on drosal part, also amount to 4 point measurements, with the wear pressure of meansigma methods as drosal part.Seriality is in distance between the position of 1.1～2.5kPa as the width in the 1st zone 71 in will the value from P1 to Pn.For example, from P3 to P6 in this case, the width in zone=(6-3) * 5=15mm.And this moment, the center in the 1st zone 71 was the mid point of measurement point 3 and measurement point 6.
The reason that the girth of cylinder is made as 500mm is, because on average be approximately 500mm as the child's of the main object of the diaper 1 of wearing present embodiment abdominal part circumference.And, so-called here abdominal part circumference be considered the child posture change the time abdominal part around perimeter change, the meansigma methods around the abdominal part of under stance and sitting posture, measuring.
Position from wearer's crista iliaca to anterior superior iliac spine has certain width, and the 1st zone 71 with diaper 1 in the scope of this width is fixed on this position, thereby can prevent the dislocation tenesmus of diaper 1 effectively.From this viewpoint, in the diaper 1 of present embodiment, W1 is made as 15～35mm with the width in the 1st zone 71 length of the 1st zone 71 of the length direction of diaper 1 (that is, along).This width W is 20～35mm, particularly during 25～30mm, can more effectively prevents the dislocation tenesmus of diaper 1, and that can further improve the outward appearance of the diaper 1 the state of dress under and diaper 1 wears operation convenience (wear easily etc.).
Under the state of diaper 1 in the dress, be connected to position in order to make the 1st zone 71 from wearer's crista iliaca to anterior superior iliac spine, the relation between the size of diaper 1 and wearer's the physique is very important.Under the main child's who wears object who for example is considered as the Briefs type diaper the situation, under the deployed condition of diaper 1, to be made as 180～220mm apart from K1 between the centre line C L of the length direction of the center in the 1st zone 71 of abdominal part side A (along the center of the length direction of diaper 1) and diaper 1, and under the deployed condition of diaper 1, to be made as 180～220mm apart from K2 between the centre line C L of the length direction of the center in the 1st zone 71 of back side B (along the center of the length direction of diaper 1) and diaper 1, thereby the 1st zone 71 can be connected to all the time well wearer's ilium zone.This value is implemented to measure to about 350 healths as the main child who wears object of Briefs type diaper and is determined.Particularly as shown in Figure 6, be as the high preceding center of anterior superior iliac spine with the veutro portion left and right sides central point on the horizontal level height of anterior superior iliac spine, with drosal part as the high rear center of anterior superior iliac spine, will be from the high preceding center of anterior superior iliac spine through in-leg to the length of the high rear center of anterior superior iliac spine as long before and after the anterior superior iliac spine height, the resulting numerical value of length that long thickness that adds the material of having considered diaper before and after this anterior superior iliac spine height etc. is needed is divided by result's (also identical in aftermentioned the 2nd invention) of two.This is made as 185～215mm apart from K1 and K2, in particular for 190～215mm, thereby can further well the 1st zone 71 be connected on wearer's the ilium zone all the time.
Though the 1st zone 71 is present in A of veutro portion and drosal part B, the pressure during wearing on A of veutro portion and the drosal part B does not need identical.That is, as long as the pressure during the wearing of the 1st zone 71 on A of veutro portion and the drosal part B satisfies at 1.1～2.5kPa, in A of veutro portion and drosal part B, elastomeric material, thickness, percentage elongation, configuration space also can be different.But, if the structure in the 1st zone 71 of A of veutro portion and drosal part B is excessively different, the engaged each other position of left and right sides portion of end misplaces arbitrarily when wear forwards, backwards before and after the length direction of then outer packaging material 11, diaper 1 can produce undesirable condition in appearance.Therefore, a big side of the pressure during with the wearing of the 1st zone 71 of A of veutro portion and drosal part B is made as A, when a little side is made as B, (A-B)/and the ratio of A is preferably in 30%.
In the present invention's (the 1st invention and the 2nd invention described later), the length direction centre line C L of so-called diaper 1 is meant: under both sides of the edge B1, the B2 situation that substantially dislocation ground is not bonded with each other of both sides of the edge A1, the A2 of the A of veutro portion of diaper 1 and drosal part B, and the mid point by the A1 under the deployed condition of diaper 1, B1, along the straight line (with reference to Fig. 3) of diaper width.Different therewith, it is such shown in for example Fig. 7 (a) reaches (b), both sides of the edge A1, the A2 of the A of veutro portion do not engaged with both sides of the edge B1 ', the B2 ' of drosal part B and be engaged with than both sides of the edge B1 ', B2 ' by length direction with the situation on interior position B1, the B2 under, suppose not from B1, B2 to B1 ', the zone of B2 ', determine the length direction centrage of diaper then same as described abovely.
And under the deployed condition of diaper 1, the total length L of outer packaging material 11 can at random set, but if when considering that diaper wear and " dry feeling " after using reach " preventing the property that drops that misplaces ", then preferably set at 460～520mm.And if consider " sense of feeling at ease when wearing ", then wish fully to cover umbilicus, preferably set at 490～580mm from this viewpoint.
As mentioned above, in the diaper 1 of present embodiment, mainly be diaper 1 to be fixed on wearer's the health by the power of tying tight that is configured in the 1st elastomeric element 71a in the 1st zone 71.In other words, different with Briefs type diaper in the past, in the diaper 1 of present embodiment, the power of tying tight that is configured in the elastomeric element in the waist opening portion 5 is not to be used for diaper 1 is fixed on main means on wearer's the health.Otherwise inventor of the present invention confirms that then the dislocation tenesmus meeting of diaper 1 is encouraged if improve the power of tying tight of waist opening portion 5.From this viewpoint, in the diaper 1 of present embodiment, the pressure of the waist opening portion 5 when diaper is worn is set to the lower value 0.3～1.5kPa of Briefs type diaper than in the past.Low 0.5～the 1.0kPa of the meansigma methods of the pressure in the 1st zone 71 when this pressure is preferably and wears than diaper.And the pressure of the waist opening portion 5 when diaper is worn expands easily when the wearing of diaper 1 and opens waist opening portion 5 in above-mentioned scope, has the advantage of wearing operation easily.And if the pressure of waist opening portion 5 is during less than 0.3kPa, it is big that the natural length of the waist opening portion 5 before the dress becomes, and can produce the problems such as impression difference when looking as medicated clothing.
If the pressure of the waist opening portion 5 when diaper is worn is set to 0.4～1.2kPa preferably, further that suitable is 0.4～1.0kPa, then can further prevent the dislocation tenesmus of diaper 1 effectively.The pressure of waist opening portion 5 can be measured by the method identical with the pressure in foregoing the 1st zone 71.That is, the cylinder of girth 500mm is inserted in the waist opening portion 5 of (being worn in) diaper 1, being centered close to of the air bag of wearing pressure gauge measured in the position of diaper length direction 15mm from the leading section of waist opening portion 5 wear pressure.Carry out 10 point measurements at interval with the 50mm on the circumferencial direction, according to the pressure of its meansigma methods as waist opening portion.As Fig. 7 (a) and (b) like that, under the situation of the location dislocation of the ora terminalis of the waist opening portion of the position of the ora terminalis of the waist opening portion of veutro and dorsal part, in the zone that veutro and dorsal part are overlapped the position of close end as waist opening portion.By adjusting for example material, thickness, percentage elongation or the configuration space of waist elastic members 51, can control the pressure of waist opening portion 5.And, entering at the pressure of waist opening portion 5 under the situation of scope of pressure in the 1st zone 71, this position is contained in the 1st zone 71.
In diaper 1, preferred resilient members 61a, 61b are configured under extended state along leg opening part in fact.And the pressure of the leg opening part 6 when diaper is worn preferably is arranged on 1.0～2.4kPa, particularly 1.2～2.21kPa.The pressure of the leg opening part 6 when wearing by diaper is in above-mentioned scope, and the opening of leg opening part 6 can be fitted in wearer's groin rightly, can prevent the lower limb leak of liquid on every side from the wearer effectively.And, even in use because of urinate/weight of the in-leg of the diaper 1 that defecation causes increases, and also can prevent to leave at the health of in-leg place absorber from the wearer, the outward appearance of the diaper 1 in can preventing to wear reduces and the leakage of urine or stool.Its result can access the effect that the diaper 1 of wearing state can be remained on good state etc.
The pressure of wearing of leg opening part is measured with following method.Device/air bag is identical with the measurement of waist opening portion.The cylinder of girth 300mm is inserted in the leg opening part 6 of (being worn in) diaper 1,6 point measurements are carried out at the interval of 50mm on the position that disposes elastomeric element 61a, 61b, with circumferencial direction.Under the situation that has many elastomeric element 61a, 61b, measure at the width central point in the zone that this elastomeric element is configured.The meansigma methods that right lower limb and left lower limb is amounted at 12 is as the pressure of wearing of leg opening part 6.About completely or partially not having leg elastic members 61a, 61b, will be in the zone of quite side pad elastomeric element 81 configurations at position wear the wear pressure of pressure as leg opening part.The reason that the girth of cylinder is made as 300mm is, owing on average approximately be 300mm as the length of the child's of the main object of the diaper 1 of wearing present embodiment groin (around the lower limb).
And then in the diaper 1 of present embodiment, the 1st zone 71 when diaper 1 is worn, waist opening portion 5, and leg opening part 6 beyond the zone, for example the pressure in the 2nd zone 72 between the 1st zone 71 and leg opening part 6 preferably is set to 0.2～0.8kPa, is more preferably 0.3～0.6kPa.Thus, diaper 1 is close on wearer's the health with the pressure of appropriateness, can prevents leak of liquid effectively.Under the situation of having worn diaper 1, the 2nd zone 72 is connected to the underside area (hypogastric region) in wearer's ilium zone.The width in the 2nd zone 72 (that is, along the 2nd regional 72 length of the length direction of diaper 1) W2 is preferably 40～70mm, is preferably 45～65mm especially.
Related therewith, in diaper 1, waist opening portion the 5, the 1st zone 71 when relatively diaper wear, and during the pressure in the 2nd zone 72, preferably the pressure in the 1st zone 71 is the highest, and what next was high is the pressure of waist opening portion 5, and the pressure in the 2nd zone 72 is minimum.By such order is set on the pressure at each position, the dislocation tenesmus of the diaper 1 in not only can preventing from effectively to wear can also make diaper 1 not be close on wearer's the health with having inharmonious sense, prevents from effectively to leak.
From above explanation as can be known, be 1.1～2.5kPa if make the pressure of wearing in the ilium zone of the user after the dress of Briefs type diaper, then can prevent the dislocation tenesmus of diaper effectively.Making this wear the concrete means of pressure in such scope is the 1st elastomeric elements that are configured in the 1st zone 71.But as these means, being not limited to is such elastomeric element, also can by other means make the wearer the ilium zone wear pressure in above-mentioned scope.For example also can be after diaper dress, tie tight corresponding to the position of the diaper in this ilium zone with the band grade so that wearer's ilium zone wear pressure in above-mentioned scope.That is, the present invention also comprises the invention of the wearing method of diaper except the invention of the pull-on disposable diaper that so far illustrated.This method is that following pull-on disposable diaper is worn on one's body the wearer, and this diaper comprises: the surficial sheets of liquid permeability, the back-sheet of water proofing property and the outer packaging material that is clipped in the absorbent core of the liquid retainability that is configured between two sheet materials and is configured in this back-sheet side; The left and right sides portion of the end, length direction front and back of this outer packaging material is bonded with each other each other and is had waist opening portion and a pair of leg opening part.In the wearing method of this diaper: after diaper is put on, tie tight corresponding to diaper position, so that the pressure of wearing at this position becomes 1.1～2.5kPa from wearer's crista iliaca to the anterior superior iliac spine position by predetermined mechanism.
Below, with reference to Fig. 8 the 2nd working of an invention mode is described.And, do not specify part about the 2nd invention, can suitably be suitable for explanation about above-mentioned the 1st invention.And the parts identical with Fig. 1～Fig. 7 have marked identical symbol in Fig. 8.
In the diaper 1 of present embodiment, as shown in Figure 8, A of veutro portion and drosal part B at the diaper 1 of engagement state go up separately, respectively will be from waist opening portion 5 to leg opening part 6 zone draw the imaginary cut-off rule of 4 five equilibriums at the length direction of diaper 1, imagination is followed successively by 4 zones of the 1st regional 7A, the 2nd regional 7B, the 3rd regional 7C, the 4th regional 7D from this waist opening portion one side.Each regional 7A～7D extends on the width of diaper 1.In these 4 zones, waist elastic members 51 mainly is present among the 1st regional 7A.And leg elastic members 61a, 61b mainly are present among the 4th regional 7D.And a plurality of elastomeric elements that extend on the width of diaper 1 are configured among the 2nd regional 7B and the 3rd regional 7C between the 1st regional 7A and the 4th regional 7D.In these elastomeric elements, be present in the 1st elastomeric element 71a ' that is called among the 2nd regional 7B, be present in the 2nd elastomeric element 72a ' that is called among the 3rd regional 7C.
The 1st elastomeric element 71a ' and the 2nd elastomeric element 72a ' are extending between the edge, the left and right sides of the edge, the left and right sides (edge, the left and right sides of packaging material 11 promptly) of whole diaper 1 and absorbent core 4.And on absorbent core 4 existing positions, the 1st elastomeric element 71a ' and the 2nd elastomeric element 72a ' do not exist in fact.Its result is formed on gauffer among the 2nd regional 7B and the 3rd regional 7C between the edge, the left and right sides of the edge, the left and right sides of diaper 1 and absorbent core 4, does not form gauffer in fact on the position that absorbent core 4 exists.Thus, even wearing under the state, the position that absorbent core 4 exists, outer packaging material 11 does not shrink because of the contraction of the 1st elastomeric element 71a ' and the 2nd elastomeric element 72a ', thus the outward appearance of diaper 1 or absorbent properties are all good.But the present invention also is not limited to this structure, and the 1st elastomeric element 71a ' and the 2nd elastomeric element 72a ' also can traverse full week in fact and be configured on the width of diaper 1.
So in the diaper 1 of present embodiment, the meansigma methods of the pressure during the wearing of the diaper 1 of the 2nd regional 7B is set to 0.9～1.8kPa and maximum below 2.5kPa.The 2nd regional 7B preferably is formed in the position at the position from the crista iliaca to the anterior superior iliac spine (ilium zone) that is connected to the wearer when having worn diaper 1.Present inventors inquire into the result of research, discovery is in order to prevent the dislocation tenesmus of Briefs type diaper in dress effectively, compared with the pressure of tying tight that improves waist opening portion, be the pressure of tying tight of the 1st regional 7A in the present embodiment, the pressure of tying tight that more in the past improved corresponding to the 2nd regional 7B at the diaper position in wearer's ilium zone is only effectively.Its reason is as previously mentioned, owing to the child as the wearer, as the feature of its health, to give prominence to around the abdominal part.
As mentioned above, the meansigma methods of the pressure when the wearing of the diaper 1 of the 2nd regional 7B is 0.9～1.8kPa, and maximum is below 2.5kPa.The meansigma methods of the pressure during the wearing of the diaper 1 of the 2nd regional 7B is difficult to the 2nd regional 7B of diaper 1 is fixed on wearer's ilium zone during less than 0.9kPa, its diaper 1 dislocation tenesmus as a result, and the outward appearance of wearing the diaper 1 under the state is very low.Particularly, the hypertrophy at the lower crotch C place of diaper 1 becomes significantly, and becomes the reason of urine and stool leakage.On the other hand, when the meansigma methods of the pressure during the wearing of the diaper 1 of the 2nd regional 7B surpasses 1.8kPa, except the wearer's that excessively ties tight health, the dress of the diaper 1 operation difficulty that also becomes.And it is bad from preventing from because of the vestige of elastomeric element due to the dress remains in viewpoint on the skin, exist to wear the position that the pressure part uprises.From this viewpoint, the maximum of the pressure during the wearing of diaper 1 is very important below 2.5kPa.The viewpoint of operating from the dress of the dislocation tenesmus that further prevents diaper 1 effectively or outward appearance that further improves the diaper 1 the state of dress under and diaper 1, the meansigma methods of the pressure during the wearing of the diaper 1 of the 2nd regional 7B is preferably 0.8～1.6kPa, is more preferably 0.9～1.5kPa.And from further preventing because of the vestige of elastomeric element due to the dress remains in viewpoint on the skin, the maximum of the pressure during the wearing of diaper 1 preferably below 2.0kPa, is more preferably below 1.8kPa.
The meansigma methods of the pressure the when diaper 1 of the 2nd regional 7B is worn and maximum can for example material, thickness, percentage elongation or the configuration space of the 1st elastomeric element 71a ' be controlled by adjusting.
The meansigma methods of the pressure the when diaper 1 of the 2nd regional 7B is worn and maximum are that diaper is worn on the cylinder of girth 500mm, and be measured by wearing pressure gauge (the contact pressure measuring instrument (AMI3037-2) that (strain) AMITEC company makes).Concrete measuring method is as described below.
[measuring method of the pressure of the 2nd regional 7B]
Use the air bag (ェ ア パ ッ Network) of φ=15mm, be provided with on the boundary line that is centered close to the 2nd zone and the 1st zone of air bag, measure and wear pressure (P1).The position that the diaper width of air bag is set is the approximate centre (with reference to Fig. 8) at the edge, the left and right sides of the edge, the left and right sides of diaper and absorbent core 4.Then make the center of air bag move 5mm, measure and wear pressure (P2) at the length direction of diaper 1.Similarly, measure at interval with every 5mm, obtain P3, P4, P5 ... Pn.The measurement of P1 to Pn is to carry out in the scope in the 2nd zone.P1 to Pn be about veutro portion and drosal part carry out respectively each 2 amount to 4 point measurements, obtain from their meansigma methods.By the meansigma methods of the P1 to Pn that obtains, the meansigma methods of the pressure when obtaining the wearing of diaper 1, by the maximum of P1 to Pn, the maximum of the pressure when obtaining the wearing of diaper 1.
Position from wearer's crista iliaca to anterior superior iliac spine has certain width, and the 2nd regional 7B with diaper 1 in the scope of this width is fixed on this position, thereby can prevent the dislocation tenesmus of diaper 1 effectively.From this viewpoint, in the diaper 1 of present embodiment, the length of side seals S is made 90～140mm.This width is 95～135mm, particularly during 95～130mm, can more effectively prevents the dislocation tenesmus of diaper 1, and that can further improve the outward appearance of the diaper 1 the state of dress under and diaper 1 wears operability (wear easily etc.).
In diaper 1, on the length basis of side seals S, the total length L of the length direction under the deployed condition of diaper 1 is set to 440～530mm.As mentioned above, as long as the 2nd zone is formed on the position that is connected to from wearer's crista iliaca to the position of anterior superior iliac spine, part thereon (the 1st zone) does not have effect to the dislocation tenesmus of diaper, otherwise, then produce the 1st regional subordinate and slide near the undesirable condition of above-mentioned ilium if the pressure of tying tight in the 1st zone is strong.If the length in the 1st zone more than necessary length, owing to the part that may produce dislocation is elongated, is unfavorable then.Thereby from the viewpoint of the tenesmus that prevents to misplace, or the viewpoint of " dry feeling " when improving diaper and wear, wish that the length of the diaper length direction in the 1st zone is lacked as far as possible.But, diaper being thought of as under the situation of medicated clothing, the 1st zone must have length to a certain degree again.Inventors of the present invention have carried out various discussion research, found that the total length L with the length direction under the deployed condition of diaper 1 is made as 440～530mm, " sense of feeling at ease " as medicated clothing that can access in the time of can not damaging diaper and wear reaches " dry feeling ", and can make the 2nd zone be connected to crista iliaca from the wearer to the position of anterior superior iliac spine, also with the diaper of " preventing dislocation tenesmus property "." sense of feeling at ease " when wear in order further to improve, " dry feeling ", and " prevent dislocation from dropping property ", preferably the total length L with the length direction of the deployed condition of diaper 1 is made as 450～520mm, is more preferably 460～515mm.
Under the state of having worn diaper 1, be connected to crista iliaca from the wearer to the position of anterior superior iliac spine in order to make the 2nd regional 7B, the relation between the size of diaper 1 and wearer's the physique is very important.Under the main child's who wears object who for example is considered as the Briefs type diaper the situation, under the deployed condition of diaper 1, to preferably be made as 180～220mm apart from K1 ' between the centre line C L of the length direction of the center of the 2nd regional 7B of the A of veutro portion (along the center of the length direction of diaper 1) and diaper 1, and under the deployed condition of diaper 1, to preferably be made as 180～220mm apart from K2 ' between the centre line C L of the length direction of the center in the 1st zone 71 of back side B (along the center of the length direction of diaper 1) and diaper 1, thereby can well the 2nd regional 7B be connected to wearer's ilium zone all the time.Should be made as 185～215mm apart from K1 ' and K2 ', 190～215mm particularly, thus can well the 2nd regional 7B be connected to wearer's ilium zone more all the time.
The 2nd zone is present among A of veutro portion and the drosal part B, but the pressure during wearing among A of veutro portion and the drosal part B does not need complete difference.Promptly, as long as the maximum of the pressure the during meansigma methods of wearing pressure that satisfies the 2nd zone among A of veutro portion and the drosal part B wearing in 0.9～1.8kPa, the A of veutro portion and drosal part B is below 2.5kPa, then on A of veutro portion and drosal part B, elastomeric material, thickness, percentage elongation, configuration space also can be different.But, if the structure of the 2nd regional 7B of A of veutro portion and drosal part B is excessively different, the engaged each other position of left and right sides portion of end misplaces arbitrarily before and after when wear before and after the length direction of then outer packaging material 11, can produce undesirable condition in appearance at diaper 1.Therefore, the big side of meansigma methods of the pressure during with the wearing of the 2nd regional 7B of A of veutro portion and drosal part B is made as A, when a little side is made as B, (A-B)/and the ratio of A is preferably in 30%.
In the diaper 1 of present embodiment, mainly be diaper 1 to be fixed on wearer's the health by the power of tying tight that is configured in due to the 1st elastomeric element 71a ' among the 2nd regional 7B.In the diaper 1 of present embodiment, mainly be configured in the power of tying tight due to the waist elastic members 51 among the 1st regional 7A, not to be used for diaper 1 is fixed on main means on wearer's the health.In the diaper 1 of present embodiment, the meansigma methods of the pressure of the 1st regional 7A when diaper is worn preferably is set to the lower value 0.3～1.2kPa of Briefs type diaper than in the past.The pressure of the 2nd regional 7B when this pressure is necessary to be set at and wears than diaper is low.And the pressure of the 1st regional 7A when diaper is worn is in above-mentioned scope, and waist opening portion 5 becomes to expand easily and opens when the wearing of diaper 1, and has the advantage of wearing operation easily.If when 0.3kPa is following, it is big that the natural length of the waist opening portion 5 before the dress becomes, and can produce the bad undesirable condition that waits of impression when looking as medicated clothing.
Be more preferably 0.4～1.2kPa if the meansigma methods of the pressure of the 1st regional 7A when diaper is worn is set to, preferably 0.5～1.1kPa then can further prevent the dislocation tenesmus of diaper 1 effectively.The meansigma methods of the pressure of the 1st regional 7A can be measured by the method identical with the meansigma methods of the pressure of foregoing the 2nd regional 7B.That is, the cylinder of girth 500mm is inserted in (being worn in) diaper 1, (being centered close to measure on the 1st regional 7A of φ=15mm) worn pressure (P1) to make the air bag of wearing pressure gauge.The position of diaper width is the approximate centre at the edge, the left and right sides of the edge, the left and right sides of diaper and absorbent core 4.Then make the center of air bag move 5mm, measure and wear pressure (P2) at the length direction of diaper 1.Similarly, every interval 5mm measures, obtain P3, P4, P5 ... Pn.The measurement of P1 to Pn is to carry out in the scope of the 1st regional 7A.P1 to Pn be about veutro portion and drosal part carry out respectively each 2 amount to 4 point measurements, obtain from their meansigma methods.By the meansigma methods of the P1 to Pn that obtains, the meansigma methods of the pressure when obtaining the wearing of diaper 1.By adjusting for example material, thickness, percentage elongation or the configuration space of waist elastic members 51, can control the meansigma methods of the pressure of the 1st regional 7A.
In the diaper 1 of present embodiment, the meansigma methods of the pressure of the 3rd regional 7C when diaper is worn preferably is set to 0.2～1.0kPa, is more preferably 0.3～0.8kPa.Thus, diaper 1 is close on wearer's the health with the pressure of appropriateness, can prevents leak of liquid effectively.The pressure of the 2nd regional 7B when this pressure is necessary to set to such an extent that wear than diaper is low.Under the situation of having worn diaper 1, the 3rd regional 7C is connected to the underside area (hypogastric region) in wearer's ilium zone.This pressure can with try to achieve the 1st regional 7A and the 2nd regional 7B on the identical method of the method for meansigma methods of the pressure of diaper when wearing try to achieve.That is, the cylinder of girth 500mm is worn in the diaper 1, uses the air bag of φ=15mm, be provided with on the boundary line that is centered close to the 3rd zone and the 2nd zone of air bag, pressure (P1) is worn in measurement.The position that the diaper width of air bag is set is the approximate centre at the edge, the left and right sides of the edge, the left and right sides of diaper and absorbent core 4.Then make the center of air bag move 5mm, measure and wear pressure (P2) at the diaper length direction.Similarly, measure at interval with 5mm, obtain P3, P4, P5 ... Pn.The measurement of P1 to Pn is to carry out in the scope in the 2nd zone.P1 to Pn be about veutro portion and drosal part carry out respectively each 2 amount to 4 point measurements, obtain from their meansigma methods.By the meansigma methods of the P1 to Pn that obtains, the meansigma methods of the pressure when obtaining the wearing of diaper 1.
That is, as previously mentioned, the 1st regional 7A and the pressure of the 3rd regional 7C when diaper is worn are established lowlyer than the 2nd zone.Below this three's magnitude relationship is preferred especially like this.That is, during pressure when having compared diaper among the 1st regional 7A to the 3 regional 7C and wearing, preferably the pressure of the 2nd regional 7B is the highest, and secondly high is the pressure of the 1st regional 7A, and the pressure of the 3rd regional 7C is minimum.By such order is set on the pressure at each position, the dislocation tenesmus of the diaper 1 in not only can preventing from effectively to wear can also make diaper 1 not be close on wearer's the health with having inharmonious sense, can prevent from effectively to leak.
In the diaper 1 of present embodiment, the pressure of the leg opening part 6 when diaper is worn can be identical with the situation of the 1st invention.Its reason is with identical with regard to the said clear reason of the 1st invention.
Abovely the present invention (the 1st invention and the 2nd invention) has been described, but the present invention has more than and is limited to above-mentioned embodiment according to its preferred implementation.For example in the diaper 1 of above-mentioned embodiment, the 1st elastomeric element 71a (71a ') or the 2nd elastomeric element 72a (72a ') only are configured between the edge, the left and right sides of the edge, the left and right sides of diaper 1 and absorbent core 4, but be not limited only to this structure, also can be only at the edge, the left and right sides of absorbent core 4 part of the 1st elastomeric element 71a (71a ') or the 2nd elastomeric element 72a (72a ') be overlapped, the width that also can traverse diaper disposes endlong.In this case, with the outer packaging material 11 of absorbent core 4 superposed part on, effect has the power that makes it to shrink due to the 1st or the 2nd elastomeric element.Even but under these circumstances, the outer packaging material 11 that will be positioned at the zone that is configured absorbent core 4 sticks on the absorbent core 4 by sticker, utilize the rigidity of absorbent core 4 to suppress the contraction of elastomeric element, thereby can prevent from the outer packaging material 11 of the part that has been configured core body 4, to produce fold.And, by being clamped and fixed in the 1st elastomeric element 71a on skin and the internal layer non-woven fabrics 12,13 (71a ') or the 2nd elastomeric element 72a (72a ') only in the part that disposes absorbent core 4, be fixed on hardly on the non-woven fabrics 12,13, thereby also can prevent from the outer packaging material 11 of the part that has been configured absorbent core 4, to produce fold.
And, the 1st invention is so long as following such pull-on disposable diaper is any type of all comprises, this diaper is: between the veutro portion and drosal part above-mentioned waist opening portion and above-mentioned leg opening part separately of diaper, have the pressure of diaper when wearing and be set to the zone of 1.1～2.5kPa, and width that should the zone is 15～35mm.Under the deployed condition of diaper, the distance of the center of the above-mentioned zone from the length direction centre line C L to veutro portion is 180～220mm, and the distance of the center of the above-mentioned zone from the length direction centre line C L to drosal part is 180～220mm, and the pressure of the above-mentioned waist opening portion when diaper is worn is set to 0.3～1.5kPa.For example shown in Figure 9, the 3rd zone 73 also can be set between waist opening portion 51 and the 1st zone 71.
And, the collocation method of elastomeric element 71a ' is not limited to above-mentioned embodiment, for example, also can be as Figure 10 (a) and (b), traverse a plurality of the 1st elastomeric element 71a of the region-wide configuration of width (71a ') of diaper at the A of veutro portion, and make the middle body of the 1st elastomeric element 71a (71a ') bend to convex to the lower crotch C of diaper.By the curved shape of the 1st such elastomeric element 71a (71a '), thereby when the wearing of diaper 1, the pressing force of the 1st elastomeric element 71a ' stably acts on around wearer's the abdominal part.Particularly, diaper becomes and is more prone to fit abdominal part outstanding child's the bodily form on every side.Its result is difficult to cause the position changing of the relative positions of the above-below direction of diaper.
And then, also can be as Figure 11 (a) and (b), traverse a plurality of the 1st elastomeric element 71a of the region-wide configuration of width of diaper at the A of veutro portion, and make near many 1st elastomeric element 71a the lower crotch C that is positioned at diaper bend to convex to the lower crotch C of diaper.In this case, preferably the closer to the 1st elastomeric element 71a of lower crotch C, its degree of crook is big more.By such configuration of the 1st elastomeric element 71a, can cover abdominal part on every side on a large scale by enough the 1st elastomeric element 71a.Its result except that the contraction of left and right directions, produces the power of the contraction of above-below direction, therefore, can prevent the position changing of the relative positions of the above-below direction of diaper, can produce the effect that the width central part that makes diaper upwards promotes.
And then, in the above-described embodiment, both sides of the edge A1, the A2 of the A of veutro portion that is bonded with each other and both sides of the edge B1, the B2 of drosal part B and form side seals, but substitute it, also can engage in advance, form the underwear shape with hook, button, magic tape various engaging parts such as (face Off ア ス Na one).And joint or the clamped position of both sides of the edge A1, the A2 of the A of veutro portion and both sides of the edge B1, the B2 of drosal part B are not only limited to the lateral position of health, also can be the forward slightly of health or lean on after the position.
And then in the above-described embodiment, outer packaging material 11 is made of skin and internal layer non-woven fabrics 12,13, but the material of outer packaging material is not only limited to this, also can be the laminated sheet of non-woven fabrics and water proofing property sheet material for example.
And then, in the above-described embodiment, diaper 1 is made of the outer packaging material 11 of the profile that forms diaper and the absorber body 10 that is placed on it, but substitutes it, also can form the profile of diaper 1 by surficial sheets and back-sheet, be clipped between two sheet materials and dispose absorbent core.And the position that extends outward from the left and right sides of the veutro portion of diaper and the absorbent core on the drosal part also can be made of elastic plate (elasticity パ ネ Le) material.
And on the packaging material 11, any side that can only make internal layer non-woven fabrics 13 and outer non-woven fabrics 12 is the water proofing property non-woven fabrics outside.And, can guarantee with side pad 8 under the situation of sufficient anti-leakage that internal layer non-woven fabrics 13 and outer non-woven fabrics 12 also can the both use the water penetration non-woven fabrics.
As described in detail above, pull-on disposable diaper of the present invention is difficult to be created in the diaper dress dislocation tenesmus of the diaper that is caused by wearer's action etc.Particularly be difficult to cause the hypertrophy of the lower crotch of diaper.Thereby, can keep the outward appearance of the diaper of the state of wearing well.Also can not hinder wearer's action because of the dislocation tenesmus of diaper.And, preventing to be configured in exceedingly tie tight wearer's health of elastomeric element on the diaper, wearing feeling is good.And then, because the dislocation of diaper tenesmus is suppressed, being suppressed of urine in the dress or the leakage of stool.
Further describe the present invention according to embodiment below.Yet scope of the present invention is not limited in this embodiment.
[embodiment 1 and 2 (the 1st inventive embodiment) and comparative example 1 to 4]
Make Briefs type diaper as shown in Figure 1 to Figure 3.Surficial sheets 2 on the absorber body 10 is by mass area ratio (level ground amount) 25g/m
2Hydrophilic ventilation type (ェ ア one ス Le one) non-woven fabrics constitute.Back-sheet 3 is by mass area ratio 20g/m
2Polyethylene sheets constitute.And the outer non-woven fabrics 11 of outer packaging material 11 is by mass area ratio 25g/m
2Water proofing property ventilation type non-woven fabrics constitute, the internal layer non-woven fabrics is by mass area ratio 18g/m
2Water proofing property spunbonded type (ス パ Application ボ Application De) non-woven fabrics constitute.The pressure that each elastomeric element produces is adjusted by the kind and the percentage elongation that change elastomeric material.Each value in resulting diaper shown in the table 1.
Resulting diaper is worn on one's body 3 childs of 1～2 years old, carries out following evaluation.Its result is as shown in table 1.
Operability when (1) wearing (easily the wearing property of diaper)
Zero: wear easily
△: wear slightly easily
*: be not easy to wear
(2) wearing the position changing of the relative positions in the 1st zone after 60 minutes
Zero: do not have the position changing of the relative positions
△: the position changing of the relative positions is arranged slightly
*: the position changing of the relative positions is arranged
(3) wearing the position changing of the relative positions of 60 minutes back lumbar part peristomes
Zero: do not have the position changing of the relative positions
△: the position changing of the relative positions is arranged slightly
*: the position changing of the relative positions is arranged
(4) wearing after 60 minutes corresponding to the rubber vestige on the body part in the 1st zone
Zero: do not have the rubber vestige
△: the rubber vestige is arranged slightly
*: the rubber vestige is arranged
The position changing of the relative positions forwards, backwards of the side seals when (5) wearing
Zero: do not have the position changing of the relative positions
△: the position changing of the relative positions is arranged slightly
*: the position changing of the relative positions is arranged
And then, about the diaper of embodiment 1 and comparative example 1, " wearing on the body part corresponding to the 1st zone after 60 minutes and having or not the rubber vestige " of at length having estimated as main effect of the present invention reaches " wearing 60 minutes back lumbar part peristomes and having or not the position changing of the relative positions ".Each 25 of these diapers are worn on one's body the infant of 11 months monthly ages～37 month, listen to investigation to the motherhood about whether supporting " being not easy to produce the rubber vestige ", " being not easy to produce the position changing of the relative positions ".Its result is as shown in table 2.
Table 1
| Veutro portion the 1st areal pressure (kPa) | Drosal part the 1st areal pressure (kPa) | Veutro portion the 1st peak width (mm) | Drosal part the 1st peak width (mm) | The distance of the 1st regional center from the length direction centrage to drosal part | Distance from the length direction centrage to veutro portion the 1st regional center | Waist opening portion pressure (kPa) | Operability when wearing | The position changing of the relative positions in the 1st zone | The position changing of the relative positions of waist opening portion | The rubber vestige | The position changing of the relative positions forwards, backwards of | |
| Embodiment | ||||||||||||
| 1 | 1.5 1.9 | 1.4 1.5 | 25 32 | 27 18 | 202 185 | 199 205 | 0.8 1.0 | ○ ○ | ○ ○ | ○ ○ | ○ ○ | ○ △～○ |
| Comparative example 1 comparative example 2 comparative examples 3 comparative examples 4 | 1.5 1.5 3.2 1.5 | 1.4 1.7 3.3 1.4 | 25 10 - 42 | 26 28 - 39 | 240 202 - 199 | 235 197 - 201 | 1.5 0.7 0.8 0.8 | △ ○ × × | × × ○ ○ | × × ○ ○ | △ × × ○ | ○ △～○ ○ ○ |
Can clearly be seen that from the result shown in the table 1 diaper of each embodiment is worn easily, and be not easy to produce the dislocation tenesmus of diaper.And, the diaper of the diaper of embodiment 2 and embodiment 1 relatively since veutro portion and drosal part difference arranged in shape, observe side seals slightly to the dislocation of the front side of health, but still on no problem level.
With respect to this, the diaper of comparative example 1 is the diaper that is equivalent to pull-on disposable diaper in the past, is easy to generate the position changing of the relative positions of diaper.The diaper of comparative example 2 is because the width deficiency in the 1st zone still is easy to generate the position changing of the relative positions of diaper.There is not the zone that is equivalent to the 1st zone in the diaper of comparative example 3, wears diaper and is not easy, and stay the rubber vestige easily.The width in diaper the 1st zone of comparative example 4 is excessive, wears diaper and is not easy.
Table 2
| Support " being not easy to stay the rubber vestige " | Support " being not easy to produce the position changing of the relative positions " | |
| | 70％ | 84％ |
| Comparative example 1 | 55％ | 45％ |
Can be clear that from the result shown in the table 2 about the assessment item of " being not easy to stay the rubber vestige ", " being not easy to produce the position skew ", the diaper of embodiment 1 is received the support that the motherhood is very high.Relative therewith, the diaper of comparative example 1 only terminates in only about half of motherhood's support.
[embodiment 3 (the 2nd inventive embodiment) and comparative example 5 to 9]
Make as Fig. 1, Fig. 2 and Briefs type diaper shown in Figure 8.Surficial sheets 2 on the absorber body 10 is by mass area ratio 25g/m
2Hydrophilic ventilation type non-woven fabrics constitute.Back-sheet 3 is by mass area ratio 20g/m
2Polyethylene sheets constitute.And the outer non-woven fabrics 11 of outer packaging material 11 is by mass area ratio 25g/m
2Water proofing property ventilation type non-woven fabrics constitute, the internal layer non-woven fabrics is by mass area ratio 18g/m
2The water proofing property spun bond nonwoven fabric constitute.Adjust by the kind and the percentage elongation that change elastomeric material by the pressure that each elastomeric element produces.Each value in resulting diaper shown in the table 3.
Resulting diaper is worn on one's body 3 childs of 1～2 years old, carries out following evaluation.Its result is as shown in table 3.
Operability when (1) wearing (easily the wearing property of diaper)
Zero: wear easily
△: wear slightly easily
*: be not easy to wear
(2) wearing the position changing of the relative positions in the 2nd zone after 60 minutes
Zero: do not have the position changing of the relative positions
△: the position changing of the relative positions is arranged slightly
*: the position changing of the relative positions is arranged
(3) wearing the position changing of the relative positions of 60 minutes back lumbar part peristomes
Zero: do not have the position changing of the relative positions
△: the position changing of the relative positions is arranged slightly
*: the position changing of the relative positions is arranged
(4) wearing after 60 minutes corresponding to the rubber vestige on the body part in the 2nd zone
Zero: do not have the rubber vestige
△: the rubber vestige is arranged slightly
*: the rubber vestige is arranged
(5) the diaper outward appearance after the dress just
Zero: neat
△: neat slightly
*: not neat
(6) wearing diaper outward appearance after 60 minutes
Zero: neat
△: neat slightly
*: not neat
And then, about the diaper of embodiment 3 and comparative example 9, " wearing on the body part corresponding to the 2nd zone after 60 minutes and having or not the rubber vestige " of at length having estimated as main effect of the present invention reaches " wearing 60 minutes back lumbar part peristomes and having or not the position changing of the relative positions ".Evaluation methodology is identical with embodiment 1.Its result is as shown in table 4.
Table 3
| Total length (mm) | Side seals length (mm) | Pressure mean values (kPa) is worn in the 2nd zone | Pressure maximum (kPa) is worn in the 2nd zone | Pressure mean values (kPa) is worn in the 1st zone | Pressure mean values (kPa) is worn in the 3rd zone | Operability when wearing | The position changing of the relative positions in the 2nd zone | The position changing of the relative positions of waist opening portion | The 2nd regional rubber vestige | Diaper outward appearance after just having worn | Wearing the diaper outward appearance after 60 minutes | |
| Embodiment 3 | 490 | 120 | 1.2 | 1.6 | 0.9 | 0.5 | ○ | ○ | ○ | ○ | ○ | ○ |
| Comparative example 5 comparative examples 6 comparative examples 7 comparative examples 8 comparative examples 9 | 540 490 495 490 510 | 170 120 120 120 115 | 1.3 2.5 1.2 1.4 0.5 | 1.7 2 3 1.5 0.8 | 0.8 0.9 0.9 2.1 1.4 | 0.4 0.5 0.5 0.4 0.5 | ○ × △～× △～× △～○ | ○ ○ ○ ○ × | △～× ○ ○ × × | ○ × × ○ △～○ | × ○ ○ ○ ○ | × ○ ○ ○ △～× |
Can be clear that from the result shown in the table 3 diaper of embodiment 3 is worn easily, and be not easy to take place the dislocation tenesmus of diaper, just good after dress back and the dress through the diaper outward appearance after the scheduled time.The length of the diaper total length of comparative example 5 and side seals is long as can be known with respect to this, the diaper appearance poor.And the part more than ilium is long, the waist tenesmus that misplaces easily.The meansigma methods height of wearing pressure in diaper the 2nd zone of comparative example 6 is the diapers that are difficult for wearing as can be known.And stay the rubber vestige easily.The maximum height of wearing pressure in diaper the 2nd zone of comparative example 7 is the diapers that are difficult for wearing as can be known.And stay the rubber vestige easily.The tenesmus that misplaces easily of the meansigma methods height of wearing pressure in diaper the 1st zone of comparative example 8, waist.And be not easy to wear.
Table 4
| Support " being not easy to stay the rubber vestige " | Support " being not easy to produce the position changing of the relative positions " | |
| Embodiment 3 | 70％ | 84％ |
| Comparative example 9 | 55％ | 45％ |
Can be clear that from the result shown in the table 4 about the assessment item of " being not easy to stay the rubber vestige ", " being not easy to produce the position changing of the relative positions ", the diaper of embodiment 3 is received the support that the motherhood is very high.Relative therewith, the diaper of comparative example 9 only terminates in only about half of motherhood's support.
Claims (9)
1. a pull-on disposable diaper has waist opening portion and a pair of leg opening part, it is characterized in that:
Between the veutro portion and drosal part above-mentioned waist opening portion and above-mentioned leg opening part separately of diaper, have the zone that the pressure of diaper when wearing is set to 1.1～2.5kPa, and width that should the zone is 15～35mm,
Under the deployed condition of above-mentioned diaper, the distance of the center of the above-mentioned zone from the length direction centrage to veutro portion is 180～220mm, and the distance of the center of the above-mentioned zone from the length direction centrage to drosal part is 180～220mm,
The pressure of the above-mentioned waist opening portion when diaper is worn is set to 0.3～1.5kPa.
2. pull-on disposable diaper as claimed in claim 1 is characterized in that, above-mentioned zone mainly is present between the edge, the left and right sides of the edge, the left and right sides of diaper and absorber.
3. pull-on disposable diaper as claimed in claim 1 is characterized in that above-mentioned zone is formed on a position, and this position is put on the back at diaper and contacted with wearer's the crista iliaca position to anterior superior iliac spine.
4. pull-on disposable diaper as claimed in claim 1 is characterized in that, the pressure of the above-mentioned zone the when pressure of the above-mentioned waist opening portion when diaper is worn is set to and wears than diaper is low.
5. diaper wearing method, it is to have the diaper wearing method of the pull-on disposable diaper of waist opening portion and a pair of leg opening part to wearer's dress, it is characterized in that,
After diaper dress, tied tight by the position of diaper that predetermined mechanism will be corresponding with wearer's the position from the crista iliaca to the anterior superior iliac spine, so that the pressure of wearing at wearer's described position becomes 1.1～2.5kPa.
6. a pull-on disposable diaper has waist opening portion and a pair of leg opening part, it is characterized in that:
The total length of the diaper length direction of deployed condition is 440～530mm, and the length of the side seals of the diaper of deployed condition is 90～140mm,
On the diaper of engagement state, to draw the imaginary cut-off rule of 4 five equilibriums from above-mentioned waist opening portion in the longitudinal direction to the zone of above-mentioned leg opening part, when imagination when this waist opening portion one side is followed successively by the 1st zone, the 2nd zone, the 3rd zone, the 4th zone, pressure mean values when the diaper in the 2nd zone is worn is set to 0.9～1.8kPa, and maximum is smaller or equal to 2.5kPa, and the pressure the when diaper in the 1st zone and the 3rd zone is worn is set to lower than the 2nd zone.
7. pull-on disposable diaper as claimed in claim 6 is characterized in that, in 3 zones, the 1st zone to the, and the pressure when diaper is worn, the 2nd zone is the highest, and secondly high is the 1st zone, and the 3rd zone is minimum.
8. pull-on disposable diaper as claimed in claim 6 is characterized in that, the 2nd zone mainly is present between the edge, the left and right sides of the edge, the left and right sides of diaper and absorber.
9. pull-on disposable diaper as claimed in claim 6 is characterized in that, the 2nd zone is formed on diaper and puts on the position that the back contacts with wearer's crista iliaca to anterior superior iliac spine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP224894/2004 | 2004-07-30 | ||
| JP224838/2004 | 2004-07-30 | ||
| JP2004224838 | 2004-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1726891A true CN1726891A (en) | 2006-02-01 |
| CN100337609C CN100337609C (en) | 2007-09-19 |
Family
ID=35926533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100845884A Active CN100337609C (en) | 2004-07-30 | 2005-08-01 | Pull-on disposable diaper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100337609C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903152B (en) * | 2005-07-28 | 2013-01-23 | 花王株式会社 | Shorts type disposable diaper |
| CN104302262A (en) * | 2012-05-18 | 2015-01-21 | 保罗·哈特曼股份公司 | Incontinence article in the form of briefs |
| CN104902860A (en) * | 2013-02-06 | 2015-09-09 | 尤妮佳股份有限公司 | Underwear type diaper |
| CN105455963A (en) * | 2014-09-29 | 2016-04-06 | 大王制纸株式会社 | Disposable underwear-type diaper |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU712652C (en) * | 1995-07-14 | 2004-11-11 | Uni-Charm Corporation | Disposable absorbent undergarment of pants type |
| JP2002065734A (en) * | 2000-09-04 | 2002-03-05 | Kao Corp | Shorts-type disposable diaper |
| JP2002119537A (en) * | 2000-10-13 | 2002-04-23 | Uni Charm Corp | Throw-away wearing article of shorts type |
| JP2002119538A (en) * | 2000-10-13 | 2002-04-23 | Uni Charm Corp | Throw-away wearing article of shorts type ! absorptive article and manufacturing device therefor |
| EP1300124B1 (en) * | 2001-09-28 | 2012-03-21 | Kao Corporation | Shorts type disposable diaper |
-
2005
- 2005-08-01 CN CNB2005100845884A patent/CN100337609C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903152B (en) * | 2005-07-28 | 2013-01-23 | 花王株式会社 | Shorts type disposable diaper |
| CN104302262A (en) * | 2012-05-18 | 2015-01-21 | 保罗·哈特曼股份公司 | Incontinence article in the form of briefs |
| CN104302262B (en) * | 2012-05-18 | 2016-08-31 | 保罗·哈特曼股份公司 | The incontinence articles of underwear form |
| CN104902860A (en) * | 2013-02-06 | 2015-09-09 | 尤妮佳股份有限公司 | Underwear type diaper |
| CN104902860B (en) * | 2013-02-06 | 2019-03-01 | 尤妮佳股份有限公司 | Shorts type diaper |
| CN105455963A (en) * | 2014-09-29 | 2016-04-06 | 大王制纸株式会社 | Disposable underwear-type diaper |
| CN105455963B (en) * | 2014-09-29 | 2020-10-16 | 大王制纸株式会社 | Pants-type disposable diaper |
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| Publication number | Publication date |
|---|---|
| CN100337609C (en) | 2007-09-19 |
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