CN104582653A - Absorbent article - Google Patents

Abstract

This diaper (1A) has an indicator-coating region (60) in which an indicator (6) has been coated arranged between a reverse surface sheet (3) and an absorbent body (4). The absorbent body (4) is composed of a lower layer absorbent body (41) that extends the entire length of the diaper (1A) and an upper layer absorbent body (42) that extends from an abdomen-side part (A)to only a crotch lower part (C), and is divided into: a main absorbing region (4M) on which the upper layer absorbent body (42) and the lower layer absorbent body (41) are superimposed; and a sub absorbing region (4E) that is not part thereof. The basis weight of the absorbent polymer of the lower layer absorbent body (41) is greater in the main absorbent region (4M) than in the sub absorbing region (4E). The basis weight of the absorbent polymer of the upper layer absorbent body (42) is less than that of the lower layer absorbent body (41). The indicator-coating region (60) is arranged in the main absorbing region (4M), and an end part (60b) on a backside part (B) side of the indicator-coating region (60) is near the end part (4Mb) on the backside part (B) of the main absorbing region (4M).

Description

Absorbent commodity

Technical field

The present invention relates to the absorbent commodities such as disposable diaper.

Background technology

In prior art, known have the disposable diaper judging the indicator whether wearer has drained according to color.As the disposable diaper with indicator, such as, a kind of disposable diaper is proposed before the applicant, its non-skin side draught acceptor having the skin side draught acceptor that is positioned at side, wearer's skin face and be positioned at side, wearer non-skin face, is provided with and the contact of liquid and the indicator (with reference to patent documentation 1) that visually changes between this non-skin side draught acceptor and back-sheet of non-skin abutment face side.The variable color of disposable diaper generation according to the urine owing to excreting etc. that patent documentation 1 is recorded, easily can pick out replacing period.

In prior art, based on the object of the appearance lifting making absorbent commodity etc., the printed design such as decorative pattern, letter, numeral, word are printed on the predetermined portion of absorbent commodity.Such as, in patent documentation 2, as the disposable diaper with stylishness of child, record the disposable diaper that sheet material is overleaf printed with the figure of the coat styles such as design, pattern, photo.

In addition, the known disposable diaper with the function in when soaking because to urinate etc. notice replacing period.Such as, following content is recorded: between absorber and back-sheet, be arranged through the hydrophilic medicament (indicator) visually changed with the contact of moisture in patent documentation 3, and to the part that not hydrophilic with this medicament is overlapping on the thickness direction of diaper in this back-sheet, even if applying to have visually also does not change and the decorative pattern of the similar color of any one color similarity of the front and back visually changed to this hydrophilic medicament to contact with moisture.According to patent documentation 3, except notify the indicator in replacing period according to variable color except, the decorative pattern of the color of the color similarity before the change that the position left in diaper width direction from this indicator applies with this indicator or after changing, thus, observer's (being mother etc. when diaper wearer is infant) can be made to pick out the variable color of indicator significantly, in patent documentation 3, implied indicator and the decorative pattern not overlapping importance of distinguishing property for improving indicator on the thickness direction of diaper.

Prior art document

Patent documentation

Patent documentation 1: Japanese Unexamined Patent Publication 2011-240049 publication

Patent documentation 2: Japanese Unexamined Patent Publication 2010-508116 publication

Patent documentation 3: Japanese Unexamined Patent Publication 2004-337385 publication

Summary of the invention

Usually, the absorbent commodities such as disposable diaper are formed as, such as higher from contacting the crotch ratio of urinating to abdomen side absorbent of urinating mouth, urinate on the contrary in not easily diffusing to distance and to urinate mouth drosal part far away.Herein, in patent documentation 1 record disposable diaper in, skin side draught acceptor and non-skin side draught acceptor respectively from veutro portion until drosal part be configured, indicator also from veutro portion until drosal part be configured.Therefore, there is the situation that the part being configured in the indicator of drosal part side when urinating is difficult to variable color, judge if carry out for index replacings with the variable color that this part does not occur, then may cause urinating dividing from crotch spills, and the accuracy in replacing period has the leeway of improvement.In addition, in patent documentation 1, how to configure skin side draught acceptor and non-skin side draught acceptor in order to play above-mentioned effect and how to configure they and indicator, without any record.

Therefore, the present invention (the first invention) provides a kind of absorbent commodity that can meet the demand.

Wear existing when there is the diaper of indicator, even if there is indicator variable color by the contact with the body fluid such as urine, observer also can not distinguish this variable color, and miss the situation in replacing period, the diaper with existing indicator the visual change of indicator distinguishing property in have the leeway of improvement.Improve aesthetic appearance by implementing printed design, and the absorbent commodity easily picking out the visual change of indicator from outside is not yet provided.

Thus, the present invention (the second invention) provides a kind of outward appearance good and easily picks out the absorbent commodity of the visual change of indicator from outside.

The present invention's (the first invention) is to provide a kind of absorbent commodity, and it has the absorbent main body of lengthwise, and the absorbent main body of this lengthwise comprises: the face sheet being configured in skin opposite face side; Be configured in the back-sheet of non-skin opposite face side; And the absorber be configured between these two sheet materials, and the absorbent main body of this lengthwise is divided into veutro portion, drosal part and crotch, in this absorbent main body, between this back-sheet and this absorber, be longitudinally configured with the indicator the area of application being coated with and being notified the indicator of excretion situation by the change of color.Above-mentioned absorber comprises absorbing polymeric and cellulose fibre.Above-mentioned absorber comprises: from above-mentioned veutro portion until lower floor's absorber of above-mentioned drosal part; Be configured on the skin opposite face of this lower floor's absorber from above-mentioned veutro portion until the upper strata absorber of above-mentioned crotch, when overlooking above-mentioned absorber, this absorber is divided into: the main absorption region of this upper strata absorber and this lower floor's absorber overlap; With the secondary absorption region beyond this main absorption region.The grammes per square metre belonging to the above-mentioned absorbing polymeric in the region of above-mentioned main absorption region in above-mentioned lower floor absorber is greater than the grammes per square metre of the above-mentioned absorbing polymeric in the region belonging to above-mentioned absorption region.The grammes per square metre of the above-mentioned absorbing polymeric of above-mentioned upper strata absorber is less than the grammes per square metre of the above-mentioned absorbing polymeric of above-mentioned lower floor absorber, or above-mentioned upper strata absorber does not comprise above-mentioned absorbing polymeric.When overlooking above-mentioned absorbent commodity, above-mentioned indicator the area of application is configured in above-mentioned main absorption region, and the end of the drosal part side of the longitudinal direction of this indicator the area of application is configured near the end of drosal part side of the longitudinal direction of this main absorption region.

The present invention's (the second invention) provides a kind of absorbent commodity, it back-sheet of non-skin opposite face side comprising absorber and be configured in this absorber, there is the longitudinal direction corresponding to the fore-and-aft direction of wearer and the transverse direction orthogonal with this longitudinal direction, there is in this longitudinal direction the veutro portion of the veutro being configured in wearer when wearing, be configured in the crotch of crotch part and be configured in the drosal part of dorsal part.Above-mentioned back-sheet has the lit-par-lit structure of poisture-penetrability sheet material and non-woven fabrics, this back-sheet in above-mentioned crotch and between above-mentioned absorber, be configured with by with the contact of moisture or body fluid and the indicator of variable color, the color before and after the variable color of this indicator is different from the true qualities of this poisture-penetrability sheet material and this non-woven fabrics respectively.Indicator corresponding region overlapping with above-mentioned indicator on the thickness direction of above-mentioned absorbent commodity in above-mentioned poisture-penetrability sheet material, the design element being mutually homochromy or similar color to the color after the variable color of this indicator is printed there is multiple modes in the region of the square square shape of 1cm, and this design element multiple is not implemented surrounding without Printing Department of printing separately.In multiple above-mentioned design element in above-mentioned indicator corresponding region any 1 is set to particular design element, 1 design element being present in the position nearest apart from this particular design element is set to closest to design element, and draw one by this particular design element and this imaginary line closest to design element center separately time, in this imaginary line with in the length L1 of the lap of this particular design element and this imaginary line with this length L2 closest to the lap of design element, respectively with in this imaginary line with identical with the length L3 of the above-mentioned lap without Printing Department that this clips closest to design element by this particular design element, or it is longer than this length L3.

Accompanying drawing explanation

Fig. 1 observes from face sheet side to block top view as the part of the flat type disposable diaper gained of first embodiment of the present invention's (the first invention).

Fig. 2 is the I-I sectional view of Fig. 1.

Fig. 3 is the II-II sectional view of Fig. 1.

Fig. 4 (a) ~ (e) is the figure that other embodiment of indicator the area of application for having disposable diaper is described.

Fig. 5 is in the horizontal from the cross-sectional view (be equivalent to Fig. 2) of cross-section as the crotch gained of the flat type disposable diaper of second embodiment of the present invention's (the first invention).

Fig. 6 is in the vertical from the longitudinal section (be equivalent to Fig. 3) of cross-section as the flat type disposable diaper gained of second embodiment of the present invention's (the first invention).

Fig. 7 is the figure of the device used in the assay method of penetration by liquid time.

Fig. 8 is that the disposable diaper representing for an embodiment of the absorbent commodity as the present invention's (the second invention) makes the elastomeric element at each position stretch and the part that is launched into the back-sheet side (non-skin opposite face side) of plane deployed condition blocks top view.

Fig. 9 is the sectional view in the I-I cross section schematically showing Fig. 8.

Figure 10 is the top view of a part for the indicator corresponding region of the poisture-penetrability sheet material schematically shown in the diaper shown in Fig. 8, Figure 10 (a) is the schematic top view before indicator discoloration, and Figure 10 (b) is the schematic top view after indicator discoloration.

Figure 11 is the amplification plan view of the design element of poisture-penetrability sheet material in the diaper shown in Fig. 8.

Detailed description of the invention

Below, to the absorbent commodity of the present invention's (the first invention), according to its preferred first embodiment, be described with reference to Fig. 1 ~ Fig. 3.Represent in FIG from the observation of face sheet side and block top view as the part of the flat type disposable diaper gained of first embodiment of the present invention's (the first invention), represent the I-I sectional view of Fig. 1 in fig. 2.In addition, the II-II sectional view of Fig. 1 is represented in figure 3.

As shown in Figure 1, the disposable diaper 1A of the first embodiment is (following, also referred to as " diaper 1A ") there is the absorbent main body 10 of lengthwise, the absorber 4 that the absorbent main body 10 of this lengthwise comprises the face sheet 2 being configured in skin opposite face side, the back-sheet 3 being configured in non-skin opposite face side and is configured between these two sheet materials 2,3, and be divided into veutro portion A, drosal part B and crotch C.And, in absorbent main body 10, overleaf between sheet material 3 and absorber 4, be longitudinally configured with the indicator the area of application 60 being coated with and notifying the indicator 6 of draining according to the change of color.As shown in Figure 1, the centre line C L that is formed as about extending in the vertical of diaper 1A is symmetrical.

Carry out in detail describing to diaper 1A, the absorbent main body 10 of diaper 1A as shown in Figure 1, longitudinally (hereinafter also referred to " Y-direction ".Y-direction: the direction parallel with centre line C L) on comprise veutro portion A, drosal part B and the crotch C between this A, B.Veutro portion A is the position of the veutro being positioned at wearer when diaper is worn, and drosal part B is the position of the dorsal part being positioned at wearer, and crotch C is the position of the hip crotch being positioned at wearer.Crotch C is positioned at longitudinal direction (Y-direction) central part of diaper 1A.In addition, the transverse direction (hereinafter also referred to " the X-direction ") direction orthogonal with longitudinal direction (Y-direction) being set to diaper 1A is described.

In addition, in this manual, so-called " skin opposite face " refers to the face being configured in the skin side of wearer in the front and back of each parts such as the face sheet 2 forming diaper 1A when wearing, and so-called " non-skin opposite face " refers to the face of side contrary towards the skin side with wearer when wearing in the front and back of each parts such as face sheet 2.

As shown in Figure 1, in the absorbent main body 10 of diaper 1A, the left and right sides edge of the left and right sides edge of (Y-direction) along the longitudinal of veutro portion A and (Y-direction) along the longitudinal of drosal part B more extends to transverse direction (X-direction) outside than the left and right sides edge of (Y-direction) along the longitudinal of crotch C respectively.And the left and right sides edge of crotch C, to transverse direction (X-direction) inner side (centre line C L) convex curvature, has the shape of longitudinal direction (Y-direction) central part shrinking to the inside on the whole.Face sheet 2 and back-sheet 3 extend laterally from the rear and front end edge of the left and right sides edge of (Y-direction) along the longitudinal of absorber 4 and longitudinal (Y-direction) respectively.As shown in Figure 2, the size of its horizontal (X-direction) is less than the size of the transverse direction (X-direction) of back-sheet 3 to face sheet 2.Face sheet 2 and back-sheet 3 directly engage at the extension extended laterally from the outer peripheral edge of absorber 4 respectively or are bonded with each other across other parts, clamping, fixing absorber 4.

As depicted in figs. 1 and 2, in the absorbent main body 10 of diaper 1A, at both sides 10s, the 10s of (Y-direction) along the longitudinal, be configured with sidepiece sheet material 5 across face sheet 2 respectively.As shown in Figure 1, sidepiece sheet material 5 is in the skin opposite face side of face sheet 2, and configuration is fixed on along the longitudinal the whole region of sidepiece of (Y-direction).The end of the inner side (near centre line C L) of the X-direction of each sidepiece sheet material 5 as shown in Figure 2, become free end, near free end, at crotch C, the elastomeric element 51 that three-dimensional gauffer is formed is fixed in longitudinal direction (Y-direction) with elongation state configuration, when wearing, by the contractility of above-mentioned elastomeric element, the part of distance free end Rack is left from face sheet 2 and forms three-dimensional gauffer.

The end in the outside of the X-direction of each sidepiece sheet material 5 as shown in Figure 2, fix with back-sheet 3, between the end and back-sheet 3 in the outside of each sidepiece sheet material 5, at crotch C, the elastomeric element 52 that leg creases is formed is fixed in longitudinal direction (Y-direction) with elongation state configuration, when wearing, form leg creases by the contractility of above-mentioned elastomeric element.

As shown in Figure 1, diaper 1A is so-called deploying type diaper, and the pair of right and left connecting setting outside the left and right two being included in the drosal part B of absorbent main body 10 is stretched empiecement (panel) 7b, 7b.A pair flexible empiecement 7b, 7b of diaper 1A are in drosal part B, and the end winding support of close above-mentioned centre line C L, in the non-skin opposite face of back-sheet 3, connects and arranges outside the left and right two of the drosal part B of absorbent main body 5.In addition, in diaper 1A, a pair flexible empiecement 7b, 7b are fixed on the non-skin opposite face of back-sheet 3, but also can be fixed between the sidepiece sheet material 5 and back-sheet 3 of face sheet 2 configuration.The pull stap 72 being provided with the set portion 71 be made up of the sunny side parts of mechanicalness face securing member is installed on each flexible empiecement 7b outside X-direction with extending.Flexible empiecement 7b uses the method such as bonding agent or welding to be fixed on absorbent main body 10.

In addition, as shown in Figure 1, diaper 1A has outside the left and right two of the veutro portion A of absorbent main body 10, connect setting pair of right and left empiecement parts 7a, 7a.A pair empiecement parts 7a, 7a of diaper 1A are at veutro portion A, as shown in Figure 1, the end winding support of close above-mentioned centre line C L, between the sidepiece sheet material 5 configured across face sheet 2 and back-sheet 3, connects and arranges outside the left and right two of the veutro portion A of absorbent main body 5.In addition, in diaper 1A, a pair empiecement parts 7a, 7a are fixed between sidepiece sheet material 5 and back-sheet 3, but also can be fixed on the non-skin opposite face of back-sheet 3.Empiecement parts 7a uses the method such as bonding agent or welding to be fixed on absorbent main body 10.In addition, at the non-skin opposite face of veutro portion A, be provided with each other at a pair empiecement parts 7a, 7a and make taking of set portion 71 set of the pull stap 72 of drosal part B be with 73.

As shown in Figure 1, absorber 4 comprises from veutro portion A until lower floor's absorber 41 of drosal part B, and on the skin opposite face being configured in lower floor's absorber 41 and only from the upper strata absorber 42 of veutro portion A to crotch C.In diaper 1A, as shown in Figures 2 and 3, upper strata absorber 42 is only from veutro portion A to crotch C, lower floor's absorber 41 is from veutro portion A to crotch C, and then until drosal part B, therefore the length of the length direction (longitudinally (Y-direction)) of lower floor's absorber 41 is formed longer than upper strata absorber 42.Further preferably, when lower floor's absorber 41 is the rectangular shape of lengthwise, the width of upper strata absorber 42 is shorter than the width of lower floor absorber 41.By making the flexibility of the narrower easy acquisition absorber 4 of the width of upper strata absorber 42, well conformable therefore to health.About the length of longitudinal direction (Y-direction), also as shorter in the above-mentioned upper strata absorber 42 that makes, easily bend from veutro portion A to drosal part B thus, to the conformable lifting of health.But be when the shape of crotch C shrinking at lower floor's absorber 41, the width of the width that there is upper strata absorber 42 and lower floor absorber 41 is only in the situation that crotch C is equal.Specifically, about the length of longitudinal direction (Y-direction), upper strata absorber 42 is more than 20% of lower floor's absorber 41, is preferably more than 40%, and is less than 80%, is preferably less than 60%.About width, upper strata absorber 42 is more than 40% of lower floor's absorber 41, is preferably more than 60%, and is less than 95%, is preferably less than 80%.

In diaper 1A, as shown in Figures 2 and 3, lower floor's absorber 41 comprises the coating member 412 of lower floor's absorbent core 411 and coated lower floor absorbent core 411, is formed by coating member 412 coated lower floor absorbent core 411.Upper strata absorber 42 does not have coating member, is only formed by upper strata absorbent core 421.The grammes per square metre (mass area ratio) of lower floor's absorbent core 411 is preferably 100g/m ²above 1000g/m ²below, the grammes per square metre of coating member 412 is preferably 3g/m ²above 20g/m ²below.On the other hand, the grammes per square metre of upper strata absorbent core 421 is preferably 50g/m ²above 500g/m ²below.

Carry out in detail describing to lower floor's absorber 41, lower floor's absorbent core 411 is in diaper 1A, as shown in Figure 1, the both side edges of the both side edges of (Y-direction) along the longitudinal of A side, veutro portion and (Y-direction) along the longitudinal of drosal part B side respectively than (Y-direction) along the longitudinal of crotch C both side edges and extend to transverse direction (X-direction) outside, be formed as the shape near the part of veutro portion A shrinking to the inside from longitudinal direction (Y-direction) central part on the whole.In addition, lower floor's absorbent core 411 is in diaper 1A, and as shown in Figures 2 and 3, skin opposite face and the non-skin opposite face of lower floor's absorbent core 411 are formed as smooth separately.And, in diaper 1A, as shown in Figure 2, lower floor's absorber 41 uses 1 coating member 412, to turn back the both sides of coating member 412, formed to make the side edge part of coating member 412 mode coated lower floor absorbent core 411 overlapping in the non-skin opposite face side (back-sheet 3 side) of lower floor's absorbent core 411 each other.The lower floor's absorber 41 formed like this is formed into drosal part B from veutro portion A.In addition, in diaper 1A, as mentioned above, lower floor's absorber 41 is formed by 1 coating member 412 coated lower floor absorbent core 411, but 2 coating members 412 of skin opposite face side and the non-skin opposite face side being configured in lower floor's absorbent core 411 also can be utilized to clamp and formed.

Carry out in detail describing to upper strata absorber 42, upper strata absorbent core 421 is in diaper 1A, as shown in Figure 1, width between its width with the both side edges in the crotch C of lower floor's absorbent core 411 of lower floor absorber 41 is roughly consistent, is formed as only from the rectangular shape longer on longitudinal direction (Y-direction) of veutro portion A to crotch C.In addition, in diaper 1A, as shown in Figures 2 and 3, the skin opposite face of upper strata absorbent core 421 and non-skin opposite face are formed as smooth separately.And as shown in Figure 2, upper strata absorber 42 is only formed by upper strata absorbent core 421.The upper strata absorber 42 formed like this is only formed into crotch C from veutro portion A.That is, upper strata absorber 42 is not formed at drosal part B.

As shown in Figure 1, when overlooking absorber 4, absorber 4 is divided into the main absorption region 4M of upper strata absorber 42 and lower floor's absorber 41 overlap, and the secondary absorption region 4E beyond main absorption region 4M.In other words, main absorption region 4M is the double-deck region of upper strata absorber 42 and lower floor's absorber 41, the region of the single layer structure of secondary absorption region 4E Shi Jin lower floor absorber 41.More specifically be described, in diaper 1A, as shown in Figure 1, the width of upper strata absorbent core 421 is roughly consistent with the width on the narrowest position of lower floor absorber 41, therefore, the upper strata absorbent core 421 of rectangular shape is integrally provided on lower floor's absorber 41 of the middle body shape of shrinking to the inside.Therefore, in diaper 1A, the double-deck main absorption region 4M of upper strata absorbent core 421 and lower floor's absorber 41 overlap refers to the region being configured with upper strata absorbent core 421, and secondary absorption region 4E refers to the region be only made up of lower floor's absorber 41 monolayer not configuring upper strata absorbent core 421 in lower floor's absorber 41.

Absorber 4 comprises absorbing polymeric and cellulose fibre.And in lower floor's absorber 41, the grammes per square metre belonging to the absorbing polymeric in the region of main absorption region 4M is larger than the grammes per square metre of absorbing polymeric in the region belonging to time absorption region 4E.Specifically, lower floor's absorbent core 411 of lower floor's absorber 41 is formed by absorbing polymeric and cellulose fibre in diaper 1A.The grammes per square metre belonging to the absorbing polymeric in the region of main absorption region 4M in lower floor's absorbent core 411 is preferably 50g/m ²above, 100g/m is more preferably ²above, and be preferably 500g/m ²below, 400g/m is more preferably ²below, specifically, 50g/m is preferably ²above 500g/m ²below, 100g/m is more preferably ²above 400g/m ²below.The grammes per square metre belonging to the cellulose fibre in the region of main absorption region 4M in lower floor's absorbent core 411 is preferably 0g/m ²above, and be preferably 300g/m ²below, 200g/m is more preferably ²below, specifically, 0g/m is preferably ²above 300g/m ²below, 0g/m is more preferably ²above 200g/m ²below.On the other hand, the grammes per square metre belonging to the absorbing polymeric in the region of time absorption region 4E in lower floor's absorbent core 411 is preferably 20g/m ²above, 50g/m is more preferably ²above, and be preferably 400g/m ²below, 300g/m is more preferably ²below, specifically, 20g/m is preferably ²above 400g/m ²below, 50g/m is more preferably ²above 300g/m ²below.The grammes per square metre belonging to the cellulose fibre in the region of time absorption region 4E in lower floor's absorbent core 411 is preferably 0g/m ²above, and be preferably 250g/m ²below, 200g/m is more preferably ²below, specifically, 0g/m is preferably ²above 250g/m ²below, 0g/m is more preferably ²above 200g/m ²below.In addition, from the view point of absorbing urine efficiently, the grammes per square metre belonging to the absorbing polymeric in the region of main absorption region 4M in lower floor's absorbent core 411 is 10g/m larger than the grammes per square metre belonging to the absorbing polymeric in the region of time absorption region 4E in lower floor absorbent core 411 preferably ²above, more preferably large 20g/m ²above.The absorbing polymeric in region belonging to main absorption region 4M in lower floor's absorbent core 411 and the grammes per square metre of cellulose fibre and belong to the absorbing polymeric in region of time absorption region 4E and the grammes per square metre of cellulose fibre utilizes following method to measure.

The absorbing polymeric in region belonging to main absorption region 4M in < lower floor absorbent core 411 and the grammes per square metre of cellulose fibre and belong to time absorbing polymeric in region of absorption region 4E and the assay method > of the grammes per square metre of cellulose fibre

First, absorber 4 is arranged on horizontal stand, in the main absorption region 4M that upper strata absorber 42 is overlapping with lower floor absorber 41, be cut into the size of 70mm × 70mm, from the sample after this severing, the part of upper strata absorber 42 and coating member 412 are removed, it can be used as the sample belonging to the region of main absorption region 4M in lower floor's absorbent core 411.In the relation of the size in view of absorber, severing regulation sample size comparatively at need, also can coordinate the size of absorber and change the sample size of severing.At the sample being enclosed similarly gravimetry by heat-sealing in the bag of the nylon bag of involution (nylon pack) (sieve aperture no.250) of gravimetry, be immersed in 0.1% ascorbic acid, 0.01% riboflavin (vitamin B2) aqueous solution and till expanding, under sunlight, expose more than 20 hours until absorption of sample solution.Thereafter, carry out at any time washing till the yellow that can't detect the sample in bag or the white becoming paper pulp, will be washed out to outside bag by water-soluble polymer.Then, centrifuge dehydration is implemented 10 minutes under the condition of 800rpm, make its dry 12 hours ~ 24 hours at 80 DEG C, calculate the decrement value of sample as absorbing polymeric amount, and the amount of above-mentioned decrement value gained will be deducted as cellulose fibre amount from the weight of sample.Sample number is more than 3, obtains their meansigma methods, goes out the grammes per square metre of each absorbing polymeric and the grammes per square metre of each cellulose fibre according to the areal calculation of the sample after severing.Measure the absorbing polymeric in region belonging to time absorption region 4E in lower floor's absorbent core 411 and the grammes per square metre of cellulose fibre in the same way.

Upper strata absorber 42 preferably rapidly by liquid transfer to lower floor's absorber 41, based on this demand, the upper strata absorbent core 421 of upper strata absorber 42 at least can use cellulose fibre, more preferably use by cross-linked cellulose fibres formed long-pending slim.In addition, coating member is not comprised in upper strata absorber 42, but when comprising absorbing polymeric, the coating member 412 coated upper strata absorber 42 of coated lower floor absorber 41 also can be utilized, also can with lower floor absorber 41 dividually by coating member only coated upper strata absorber 42.In upper strata absorber 42, the grammes per square metre of absorbing polymeric is less than the grammes per square metre of the absorbing polymeric of lower floor absorber 41 or do not comprise absorbing polymeric.Specifically, in diaper 1A, upper strata absorber 42 (upper strata absorbent core 421) be by cross-linked cellulose fibres formed long-pending slim, the grammes per square metre of the absorbing polymeric contained is preferably 0g/m ²above, and be preferably 300g/m ²below, 200g/m is more preferably ²below, specifically, 0g/m is preferably ²above 300g/m ²below, 0g/m is more preferably ²above 200g/m ²below.The grammes per square metre of the cellulose fibre of upper strata absorbent core 421 is preferably 50g/m ²above, 100g/m is more preferably ²above, and be preferably 500g/m ²below, 300g/m is more preferably ²below, specifically, 50g/m is preferably ²above 500g/m ²below (scope identical with the grammes per square metre of above-mentioned upper strata absorbent core 421), 100g/m is more preferably ²above 300g/m ²below.In addition, the grammes per square metre (grammes per square metre belonging to the absorbing polymeric in the region of main absorption region 4M in lower floor's absorbent core 411 and belong to the meansigma methods of grammes per square metre of absorbing polymeric in region of time absorption region 4E) of the absorbing polymeric of lower floor's absorbent core 411 is preferably 100g/m ²above, 150g/m is more preferably ²above, and be preferably 400g/m ²below, 350g/m is more preferably ²below, specifically, 100g/m is preferably ²above 400g/m ²below, 150g/m is more preferably ²above 350g/m ²below.In addition, from the view point of raising liquid diffusibility, the grammes per square metre of the absorbing polymeric of upper strata absorber 421 is preferably than grammes per square metre (grammes per square metre belonging to the absorbing polymeric in the region of main absorption region 4M in lower floor's absorbent core 411 and belong to the meansigma methods of grammes per square metre of absorbing polymeric in region of time absorption region 4E) the little 50g/m of the absorbing polymeric of lower floor absorbent core 411 ²above, more preferably little 100g/m ²above.The grammes per square metre of the absorbing polymeric of upper strata absorber 421 utilizes following methods to measure.

The assay method > of the absorbing polymeric of < upper strata absorber 421 and the grammes per square metre of cellulose fibre

First, upper strata absorber 42 is separated with lower floor absorber 41, the upper strata absorber 42 after being separated is arranged on horizontal stand, is cut into the size of 70mm × 70mm, it can be used as working sample.Measure in the same manner as the method recorded in the secondary absorbing polymeric in region of absorption region 4E and the assay method > of the grammes per square metre of cellulose fibre with the absorbing polymeric in region belonging to main absorption region 4M in above-mentioned < lower floor absorbent core 411 and the grammes per square metre of cellulose fibre and belonging to and carry out, draw the absorbing polymeric of upper strata absorber 421 and the grammes per square metre of cellulose fibre.

Below, the absorbing polymeric that absorber 4 comprises is described particularly.

Keep from the view point of excremental absorption, the water absorption of absorbing polymeric is preferably more than 10g/g, is more preferably more than 15g/g, and be preferably below 50g/g, be more preferably below 30g/g, specifically, be preferably more than 10g/g below 50g/g, be more preferably more than 15g/g below 30g/g.The water absorption of absorbing polymeric can utilize tries to achieve with the assay method of the JIS K7223 centrifugal maintenance dose that is foundation.The centrifugal maintenance dose of water absorbent polymer is the characteristic relevant to the water absorption of water absorbent polymer (water absorbent rate), and in general, the water absorption of the water absorbent polymer that the value of centrifugal maintenance dose is large is also large.

The assay method > of the centrifugal maintenance dose of < (water absorption)

The mensuration of centrifugal maintenance dose (water absorption) is carried out according to JIS K7223 (1996).By (the screen cloth perforate 255 of weaving cotton cloth of nylon, three power make and sold, the name of an article: nylon wire, specification: 250 × sieve aperture width × 30m) cut into width 10cm, length 40cm rectangle and in the doubling of length direction central authorities, two ends heat-sealing is made the Nylon Bag of width 10cm (inside dimension 9cm), length 20cm.Then, precise as the absorbing polymeric 1.00g measuring sample, and is added to the bottom of the Nylon Bag produced equably.Then, make the Nylon Bag that sample is housed be immersed in temperature to be adjusted in the normal saline (0.9 quality % sodium chloride water) of 25 DEG C.Then, after 1 hour, Nylon Bag is taken out from normal saline from dipping starts, to hang 1 hour with plumbness and after removing moisture, use centrifuge dehumidifier (KOKUSAN (stock) manufactures, pattern H-130C special type) to dewater.Dehydration conditions is set to 143G (800rpm) 10 minutes.After dehydration, measure the quality of sample, calculate the centrifugal maintenance dose (water absorption) of target according to following formula.

Centrifugal maintenance dose (g/g)=(a'-b-c)/c

In formula, a' represents the gross mass (g) of the sample after centrifuge dehydration and Nylon Bag, the quality (g) of (dry time) before b represents the water suction of Nylon Bag, the quality (g) of (time dry) before c represents the water suction of sample.Mensuration is carried out 5 times (n=5), deletes each 1 value up and down, using the meansigma methods of remaining 3 values as measured value.In addition, 23 ± 2 DEG C, humidity 50 ± 5% measures, sample is preserved under equivalent environment measure again for more than 24 hours before the assay.

In addition, keep from the view point of excremental absorption during pressurization, the 2.0kPa of absorbing polymeric adds pressure absorbtivity and is preferably more than 10g/g, be more preferably more than 15g/g, and be preferably below 50g/g, be more preferably below 30g/g, specifically, be preferably more than 10g/g below 50g/g, be more preferably more than 15g/g below 30g/g.Herein, the load of 2.0kPa is roughly equivalent to the body pressure putting on absorber when wearing absorbent commodity.Adding pressure absorbtivity is represent by wearing absorbent commodity, absorber is being executed to the maximum yardstick that can absorb quantity of absorbing polymeric under stressed state.

< adds the assay method > of pressure absorbtivity

Add pressure absorbtivity and utilize the assay method and determinator mensuration recorded in Japanese Unexamined Patent Publication 2003-235889 publication.Namely the nylon wire preparing 63 μm, mesh (posts the cylinder plastic tube (internal diameter 30mm, height 60mm) of JISZ8801-1:2000 in bottom surface.Then, precise 0.50g sample (absorbing polymeric), is added to sample on the nylon wire of vertical cylinder plastic tube in the mode becoming roughly uniform thickness.Then, in the mode of load sample being applied to 2.0kPa, the counterweight of external diameter 29.5mm × thickness 22mm is inserted in cylinder plastic tube.Then, in the culture dish (diameter=120mm) the cylinder plastic tube that sample and counterweight are housed being equipped with 60ml normal saline with nylon wire side for lower surface is vertically immersed in.Then, one side is soaked one side and is placed after 60 minutes, and the cylinder plastic tube that sample and counterweight will be housed takes out, and after removing moisture 15 minutes, the cylinder plastic tube of sample and counterweight is equipped with in metering, calculates the weight of the normal saline that sample absorbs.The weight of the normal saline of this absorption is depressed absorbtivity (g/g) divided by the value of 0.5 gained as adding.Mensuration is carried out 5 times (n=5), deletes each 1 value up and down, using the meansigma methods of remaining 3 as measured value.In addition, 23 ± 2 DEG C, humidity 50 ± 5% measures, sample is preserved under equivalent environment measure again for more than 24 hours before the assay.

In addition, from the diffusible viewpoint of liquid during pressurization, the 2.0kPa of absorbing polymeric adds pressure penetration by liquid speed and is preferably more than 5ml/min, be more preferably more than 10ml/min, and be preferably below 150ml/min, be more preferably below 120ml/min, specifically, be preferably more than 5ml/min below 150ml/min, be more preferably more than 10ml/min below 120ml/min.Add pressure penetration by liquid speed generally to use as the diffusion of the liquid in absorber, the index of penetration speed.

< adds the assay method > of pressure penetration by liquid speed

Add pressure penetration by liquid speed and utilize the assay method and determinator mensuration recorded in Japanese Unexamined Patent Publication 2003-235889 publication.Namely, in the glass beaker of 100mL, to be immersed in as measuring the absorbing polymeric 0.32 ± 0.005g of sample in the normal saline of more than 5 times of the normal saline (0.9 quality % sodium chloride water) of the amount being enough to swelling, the saturated absorption amount of such as absorbing polymeric and to place 30 minutes.In addition, prepare the filtration cylindrical duct of the tubule (internal diameter 4mm, length 8cm) being provided with wire screen (the biological column sintered stainless steel filter 30SUS that 150 μm, mesh, limited company three business sell) and band thromboembolism (internal diameter 2mm) in the lower end of the peristome of the cylinder vertically erect (internal diameter 25.4mm), by under the state of thromboembolism locking, the content of the above-mentioned beaker comprising the mensuration sample after swelling is all fed in this cylindrical duct.Then, be 150 μm and the cylindrical rod that diameter is the diameter 2mm of the wire screen of 25mm is inserted into and filters in cylindrical duct by having mesh in front end, with this wire screen and the mode measuring sample contacts, and then to load weight to the mode of the load measuring sample applying 2.0kPa.Place after 1 minute in this condition, open thromboembolism and make liquid flow, the liquid level in measurement filtration cylindrical duct arrives the time (T till the graduation mark (namely the liquid of 20mL passes through) of 40mL from the graduation mark of 60mL ₁) (second).Use measured time T ₁(second), calculate 2.0kPa according to following formula and add pressure penetration by liquid speed.In addition, in formula, T ₀(second) is not filtering in cylindrical duct the value measured normal saline 20ml under the state adding and measure sample and obtained by the time needed for wire screen.

Add pressure penetration by liquid speed (ml/min)=20 × 60/ (T ₁-T ₀)

Mensuration is carried out 5 times (n=5), deletes each 1 value up and down, using the meansigma methods of remaining 3 as measured value.In addition, 23 ± 2 DEG C, humidity 50 ± 5% measures, sample is preserved under equivalent environment measure again for more than 24 hours before the assay.In the paragraph [0008] that the more detailed assay method adding pressure penetration by liquid speed is documented in Japanese Unexamined Patent Publication 2003-235889 publication and paragraph [0009], and determinator is documented in Fig. 1 and Fig. 2 of this publication.

In addition, urine is kept from the view point of absorbing rapidly, the infiltration rate according to DW method mensuration of absorbing polymeric is preferably more than 10ml/ (g10 divides), be more preferably more than 20ml/ (g10 divides), and be preferably 100ml/ (g10 divides) below, be more preferably 70ml/ (g10 divides) below, specifically, be preferably 10ml/ (g10 divides) above 100ml/ (g10 divides) below, be more preferably 20ml/ (g10 divides) above 70ml/ (g10 divides) below.Behavior in the gap of the behavior that what the infiltration rate utilizing DW method to obtain represented be absorbing polymeric draw body fluid and absorb or the granule that body fluid is taken into adjacent absorbing polymeric, the index as the conformality of the absorber after conformality, the particularly body fluid absorption of absorber when manufacturing and after body fluid absorption uses.

In addition, urine is kept from the view point of absorbing rapidly, the infiltration rate according to DW method mensuration of absorbing polymeric is preferably more than 3ml/ (g1 divides), be more preferably more than 5ml/ (g1 divides), and be preferably 30ml/ (g1 divides) below, be more preferably 20ml/ (g1 divides) below, specifically, be preferably 3ml/ (g1 divides) above 30ml/ (g1 divides) below, be more preferably 5ml/ (g1 divides) above 20ml/ (g1 divides) below.

< utilizes the assay method > of the infiltration rate of DW method

Infiltration rate user demand wettability tester (DemandWettability Tester) device utilizing DW method to obtain measures.Specifically, in the apparatus, the liquid level of normal saline is arranged to the water level equal with the surface of polymer dispersed platform [70mm φ, glass filter No.1 is placed with the platform of No.2 filter paper], the surface of this polymer dispersed platform is scattered the absorbing polymeric of 0.3g determination object.The water absorption in the moment of scattering absorbing polymeric is set to 0, measures each water absorption after 1 minute and after 10 minutes.This water absorption is to represent that the scale of the buret of the reducing amount of the water level of normal saline measures.Using the value of obtained water absorption as the infiltration rate utilizing DW method to obtain.Mensuration is carried out 5 times (n=5), deletes each 1 value up and down, and the meansigma methods of remaining 3 is set to measured value.In addition, 23 ± 2 DEG C, humidity 50 ± 5% measures, sample is preserved under equivalent environment measure again for more than 24 hours before the assay.

Above-mentioned absorbing polymeric preferably can absorb keep own wt the liquid of more than 20 times and can gelation.Above-mentioned absorbing polymeric preferably its mean diameter is the graininess of more than 10 μm less than 1000 μm, and more preferably its mean diameter is the graininess of more than 100 μm less than 800 μm.There is no particular restriction for the shape of granule, such as, can adopt spherical, block, botryoidalis, the various shape such as bag-shaped.

As an example, the absorbing polymeric with above-mentioned feature can by obtaining more than a kind that is selected from following monomer polymerization.In addition, crosslinking Treatment is implemented as required.Polymerization is not particularly limited, and can adopt the various methods of the well-known absorbing polymeric such as via Inverse-Phase Suspension Polymerization or water solution polymerization process.Thereafter, as required this polymer to be pulverized, the operation such as classification, and carry out surface treatment as required.

The monomer used when manufacturing absorbing polymeric is water solublity and has the monomer of the unsaturated group of polymerism.Specifically, the vinyl monomer that olefines unsaturated carboxylic acid or its salt, olefines esters of unsaturated carboxylic acids, olefines unsaturated sulfonic acid or its salt, the unsaturated phosphoric acid of olefines or its salt, the unsaturated phosphate ester of olefines, olefines unsaturated amine, the unsaturated An salt of olefines, olefines unsaturated amides etc. have polymerism unsaturated group can be listed.

Below, the cellulose fibre that absorber 4 comprises is described particularly.

As cellulose fibre, Cotton Gossypii, paper pulp fiber, staple fibre etc. can be enumerated.The cellulose fibre of upper strata absorber 421 and the cellulose fibre of lower floor's absorbent core 411 both can be same fiber, also can be not same fiber.Especially, from the view point of making back fluidity promote, the cellulose fibre of upper strata absorber 421 is preferably the cellulose fibre after being cross-linked in cellulose fibre.As the cellulose fibre after crosslinked, modification (cellulose) fiber recorded in Japanese Unexamined Patent Application Publication 2010-526632 publication can be enumerated, such as through chemical rigidifying, through twisted and/or through curling (curling) (cellulose) fiber, through chemical rigidifying, through twisted and/or through curling cross-linked cellulose or synthetic polymeric fibers etc., in them a kind or be mixed with two or more can be used individually.Also commercially available product can be used.As commercially available product as above, such as, can enumerate " ALBACEL " (trade name) that Federal Paper Board Co. manufactures, " INDORAYON " (trade name), " FILTRANIER " (trade name) of ITT Rayonier Inc. manufacture and " POROSANIER " (trade name) etc. of the said firm's manufacture that PT Inti IndorayonUtara manufactures.

From the view point of making diffusibility promote further, form the liquid permeability of coating member 412 its liquid permeability preferred lower than upper strata absorber 42 of lower floor's absorber 41.Liquid permeability was evaluated according to the penetration by liquid time that can be measured by following methods.About the penetration by liquid time that following methods can be utilized to measure, penetration by liquid time of coating member 412 preferably than more than slow 5 seconds penetration by liquid time of upper strata absorber 42, more preferably more than slow 8 seconds.

The assay method > of < penetration by liquid time

As shown in Figure 7,2 cylinders 91,92 of the internal diameter 35mm of upper and lower side opening are configured up and down to make the consistent mode of the axle of two cylinders 91,92, cutting sample sheet square to the metal screen cloth of diameter 55mm, 40mm and 1 ADVANTEC company arranging on the upside of it are manufactured the filter paper of 101 diameter 55mm, sandwich between upper and lower cylinder 91,92.Now, the flange part of the ring-type that the upper end preferably making fixture 93 be embedded in the lower end of the cylinder 91 in upside and the cylinder 92 of downside is arranged, links upper and lower cylinder 91,92.Symbol 94 has to be same footpath with the internal diameter of cylinder 91,92 and the lining of rubber etc. for the through hole of similar shape.Under the state gripping cutting sample sheet by upper and lower cylinder 91,92 like this, in the cylinder 91 of upside, supply the artificial urine 40g in figure shown in symbol W.The artificial urine supplied, through cutting sample sheet, flows down from the lower end of this cylinder 92 by the cylinder 92 of downside is interior.The rheological parameters' change with time of the weight of the artificial urine using the weight measuring arrangements observations such as electronics Libra to flow down from the cylinder 92 on the downside of this, measure the time from the supply of artificial urine starts till this quality becomes 20g, the above-mentioned time is set to the penetration by liquid time.In repeatedly measuring, cutting sample sheet all prepares new sample strip at every turn.Mensuration carries out 3 times, using meansigma methods as measured value.

The artificial urine used in the mensuration of penetration by liquid time composed as follows described in.Carbamide 1.94 quality %, sodium chloride 0.7954 quality %, magnesium sulfate (heptahydrate) 0.11058 quality %, calcium chloride (dihydrate) 0.06208 quality %, potassium sulfate 0.19788 quality %, polyoxyethylene laurel ether 0.0035 quality % and ion exchange water (surplus).

As mentioned above, in absorbent main body 10, overleaf between sheet material 3 and absorber 4, be configured with the indicator the area of application 60 being coated with the indicator 6 of being drained by the change notification of color in the vertical.And, as shown in Figure 2, when overlooking diaper 1A, the indicator the area of application 60 being coated with indicator 6 is configured in the main absorption region 4M of absorber 4, and the end 60b of the drosal part B side of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured near the end 4Mb of the drosal part B side of the longitudinal direction (Y-direction) of main absorption region 4M.Herein, the region of this channel floor is surrounded when so-called indicator the area of application 60 refers to the part of overlooking and being coated with indicator 6.In addition, the end 60b of the drosal part B side of so-called indicator the area of application 60 is configured near the end 4Mb of drosal part B side of main absorption region 4M, not only mean that the end 60b of indicator the area of application 60 is configured to the position consistency with the end 4Mb of main absorption region 4M, as long as also mean the end 60b of the drosal part B side of the longitudinal direction of indicator the area of application 60 with the ora terminalis of the end 4Mb of the drosal part B side of the longitudinal direction (Y-direction) of the main absorption region 4M ora terminalis of the end of the drosal part B side of the longitudinal direction (Y-direction) of absorber 42 (the diaper 1A at the middle and upper levels) for benchmark, be positioned at the scope of about 1/10th of the length length of the longitudinal direction (Y-direction) of absorber 42 (the diaper 1A at the middle and upper levels) of the longitudinal direction (Y-direction) of main absorption region 4M.Such as, in diaper 1A, when the length of the longitudinal direction (Y-direction) of upper strata absorber 42 is 100mm, mean the end 60b of indicator the area of application 60 be configured in the ora terminalis of the end of the drosal part B side of upper strata absorber 42 be benchmark ± scope of 10mm in.

In addition, in diaper 1A, the end 60a of the A side, veutro portion of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured near the end 4Ma of the A side, veutro portion of the longitudinal direction (Y-direction) of main absorption region 4M.Herein, the end 60a of the A side, veutro portion of so-called indicator the area of application 60 is configured near the end 4Ma of A side, veutro portion of main absorption region 4M, not only mean that the end 60a of indicator the area of application 60 is configured to the position consistency with the end 4Ma of main absorption region 4M, as long as also mean the end 60a of the A side, veutro portion of the longitudinal direction of indicator the area of application 60 with the ora terminalis of the end 4Ma of the A side, veutro portion of the longitudinal direction (Y-direction) of the main absorption region 4M ora terminalis of the end of the A side, veutro portion of the longitudinal direction (Y-direction) of absorber 42 (the diaper 1A at the middle and upper levels) for benchmark, be positioned at the scope of about 1/10th of the length length of the longitudinal direction (Y-direction) of absorber 42 (the diaper 1A at the middle and upper levels) of the longitudinal direction (Y-direction) of main absorption region 4M.

Carry out in more detail describing to diaper 1A, as shown in Figure 1, along the position in the upper centre line C L extended of longitudinal direction (Y-direction) at the intermarginal line 61 being configured with 1 indicator 6 in the front and back end of the longitudinal direction (Y-direction) of upper strata absorber 42, the line 61 of this 1 indicator 6 and the both side edges of the both sides of (Y-direction) along the longitudinal of upper strata absorber 42 each between, between the front and back ora terminalis of the longitudinal direction (Y-direction) of upper strata absorber 42, be configured with the line 62,62 of 2 indicators 6 that and centre line C L upper in longitudinal direction (Y-direction) extends abreast.Thus, in diaper 1A, as shown in Figure 3, the indicator the area of application 60 surrounding the line 61 of 1 indicator 6 and the line 62,62 of 2 indicators 6 configures between the front and back ora terminalis of the longitudinal direction (Y-direction) of upper strata absorber 42, and the end 60b of the drosal part B side of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured to the position consistency with the end 4Mb of the drosal part B side of the longitudinal direction (Y-direction) of main absorption region 4M.And in diaper 1A, as shown in Figure 3, the end 60a of the A side, veutro portion of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured to the position consistency with the end 4Ma of the A side, veutro portion of the longitudinal direction (Y-direction) of main absorption region 4M.

Further, from the view point of precision distinguishing the degree of urinating well, when transverse direction (X-direction) upper section observes diaper 1A, the sidepiece 60s of (Y-direction) along the longitudinal of indicator the area of application 60 is preferably configured near the sidepiece 4Ms of (Y-direction) along the longitudinal of main absorption region 4M.In addition, in the diaper 1A shown in Fig. 2, the sidepiece 60s of indicator the area of application 60 is not configured near the sidepiece 4Ms of main absorption region 4M.The sidepiece 60s of (Y-direction) along the longitudinal of so-called indicator the area of application 60 is configured near the sidepiece 4Ms of (Y-direction) along the longitudinal of main absorption region 4M, not only mean that the sidepiece 60s of indicator the area of application 60 is configured to the position consistency with the sidepiece 4Ms of main absorption region 4M, as long as also mean the sidepiece 60s of indicator the area of application 60 with the lateral margin of the sidepiece 4Ms of (Y-direction) along the longitudinal of the main absorption region 4M lateral margin of the sidepiece of (Y-direction) along the longitudinal of absorber 42 (the diaper 1A at the middle and upper levels) for benchmark, be positioned at the scope of about 1/10th of the length length of the transverse direction (X-direction) of absorber 42 (the diaper 1A at the middle and upper levels) of the transverse direction (X-direction) of main absorption region 4M.Such as, in diaper 1A, when the length of the transverse direction (X-direction) of upper strata absorber 42 is 40mm, mean the sidepiece 60s of indicator the area of application 60 be configured in the lateral margin of the sidepiece of upper strata absorber 42 be benchmark ± scope of 4mm in.

Indicator the area of application 60 except the indicator the area of application 60 shown in Fig. 1, such as, also can configure as shown in Fig. 4 (a) ~ Fig. 4 (e).To illustrate when overlooking absorbent commodity indicator the area of application 60 in Fig. 4 (a) ~ Fig. 4 (e) near the upper front and back end arriving upper strata absorber 42 of longitudinal direction (Y-direction), and in transverse direction (X-direction) at least the part of this area of application 60 be applied to both sides 60s, 60s of upper strata absorber 42.Below, Fig. 4 (a) ~ Fig. 4 (e) is described particularly.

In Fig. 4 (a), represent that indicator 6 is coated at spaced intervals and form 1 longitudinally (Y-direction) group of indicator 6 of extending in longitudinal direction (Y-direction), illustrate the indicator the area of application 60 of the group of surrounding this indicator 6.In addition, in Fig. 4 (b), represent that indicator 6 is coated continuously and form 1 line in longitudinal direction (Y-direction), illustrate the indicator the area of application 60 of the line surrounding this 1 indicator 6.Indicator the area of application 60 shown in Fig. 4 (a) and Fig. 4 (b) configures between the front and back ora terminalis of the longitudinal direction (Y-direction) of upper strata absorber 42, and the end 60b of the drosal part B side of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured to the position consistency with the end 4Mb of the drosal part B side of the longitudinal direction (Y-direction) of main absorption region 4M.And the end 60a of the A side, veutro portion of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured to the position consistency with the end 4Ma of the A side, veutro portion of the longitudinal direction (Y-direction) of main absorption region 4M.

In addition, in Fig. 4 (c), represent round-shaped indicator 6 in the upper left and right of longitudinal direction (Y-direction) alternately and coated at spaced intervals and form the group of the indicator 6 that longitudinally (Y-direction) extends, illustrate the indicator the area of application 60 of the group of surrounding this indicator 6.In indicator the area of application 60 shown in Fig. 4 (c), the position of the leftmost side of indicator 6 of the circle in left side and the position consistency of the lateral margin of the left side of (Y-direction) along the longitudinal of upper strata absorber 42, the position consistency of the position of the rightmost side of the indicator 6 of the circle on right side and the lateral margin of the right side of (Y-direction) along the longitudinal of upper strata absorber 42.And then, the position consistency of the most position of the front end near Y-direction of indicator 6 of circle of backrest sidepiece B side and the ora terminalis of the end of the drosal part B side of the longitudinal direction (Y-direction) of upper strata absorber 42, by the position consistency of the position of the lower end near Y-direction of indicator 6 of circle of A side, veutro portion and the ora terminalis of the end of the A side, veutro portion of the longitudinal direction (Y-direction) of upper strata absorber 42.Therefore, the indicator the area of application 60 shown in Fig. 4 (c) is consistent with the profile of upper strata absorber 42, and consistent with the main absorption region 4M of absorber 4.Like this, in indicator the area of application 60 shown in Fig. 4 (c), the end 60b of its drosal part B side is configured to the position consistency with the end 4Mb of the drosal part B side of main absorption region 4M, and the end 60a of its A side, veutro portion is configured to the position consistency with the end 4Ma of the A side, veutro portion of main absorption region 4M.And in the indicator the area of application 60 shown in Fig. 4 (c), its both sides 60s, 60s are configured to the position consistency with both sides 4Ms, 4Ms of main absorption region 4M.

In addition, in Fig. 4 (d), represent and be configured with in cornerwise position of upper strata absorber 42 indicator 6 be made up of 2 lines, illustrate the indicator the area of application 60 surrounding these 2 indicators 6.Indicator the area of application 60 shown in Fig. 4 (d), as mentioned above, configure the line of 2 indicators 6 in cornerwise position of upper strata absorber 42 and formed, therefore, indicator the area of application 60 shown in Fig. 4 (d) is consistent with the profile of upper strata absorber 42, consistent with the main absorption region 4M of absorber 4.Like this, in indicator the area of application 60 shown in Fig. 4 (d), the end 60b of its drosal part B side is configured to the position consistency with the end 4Mb of the drosal part B side of main absorption region 4M, and the end 60a of its A side, veutro portion is configured to the position consistency with the end 4Ma of the A side, veutro portion of main absorption region 4M.And in the indicator the area of application 60 shown in Fig. 4 (d), its both sides 60s, 60s are configured to the position consistency with both sides 4Ms, 4Ms of main absorption region 4M.

In addition, in Fig. 4 (e), represent the position of the centre line C L extended along the position of the both side edges of the both sides of (Y-direction) along the longitudinal of upper strata absorber 42 and longitudinally (Y-direction) of upper strata absorber 42, be configured with the line of 3 indicators 6 that longitudinally (Y-direction) extends, illustrate the indicator the area of application 60 of the line surrounding these 3 indicators 6.In indicator the area of application 60 shown in Fig. 4 (e), the position of line of indicator 6 in left side and the position consistency of the lateral margin of the left side of (Y-direction) along the longitudinal of upper strata absorber 42, the position consistency of the position of the line of the indicator 6 on right side and the lateral margin of the right side of (Y-direction) along the longitudinal of upper strata absorber 42.Further, article 3, in the line of indicator 6, the position consistency of the ora terminalis of the most position of front end of Y-direction of backrest sidepiece B side and the end of the drosal part B side of the longitudinal direction (Y-direction) of upper strata absorber 42, by the position consistency of the ora terminalis of the position of lower end of Y-direction of A side, veutro portion and the end of the A side, veutro portion of the longitudinal direction (Y-direction) of upper strata absorber 42.Therefore, the indicator the area of application 60 shown in Fig. 4 (e) is consistent with the profile of upper strata absorber 42, consistent with the main absorption region 4M of absorber 4.Like this, in indicator the area of application 60 shown in Fig. 4 (e), the end 60b of its drosal part B side is configured to the position consistency with the end 4Mb of the drosal part B side of main absorption region 4M, and the end 60a of its A side, veutro portion is configured to the position consistency with the end 4Ma of the A side, veutro portion of main absorption region 4M.And in the indicator the area of application 60 shown in Fig. 4 (e), its both sides 60s, 60s are configured to the position consistency with both sides 4Ms, 4Ms of main absorption region 4M.

The formation material of the diaper 1A of present embodiment is described.

As face sheet 2 and back-sheet 3, if be normally used material in the absorbent commodities such as disposable diaper, then can use with no particular limitation respectively.Such as, as face sheet 2, can hydrophilic be used and the non-woven fabrics etc. of liquid permeability, as back-sheet 3, the duplexer etc. of the resin molding of liquid impermeability or water-repellancy, this resin molding and non-woven fabrics can be used.As the coating member 412 forming lower floor's absorber 41, hydrophilic sheet can be used such as to comprise the thin paper (cotton paper) of water penetration, the cored sheet material etc. of water penetration non-woven fabrics.As the sidepiece sheet material 5 forming three-dimensional gauffer or leg creases, if be normally used material in the absorbent commodities such as disposable diaper, then can use with no particular limitation respectively, the film of retractility, non-woven fabrics, fabric or their laminated sheet etc. can be used.

As the elastomeric element 51 of three-dimensional gauffer formation, the elastomeric element 52 of leg creases formation, if be normally used material in the absorbent commodities such as disposable diaper, then can use with no particular limitation.Such as, the loft material of the wire of polyethylene-alphaolefin copolymers such as comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-ethylene etc. can be used.

As indicator 6, if be normally used material in the absorbent commodities such as disposable diaper, then can use with no particular limitation.Such as, can use the sheet materials such as the film different with back-sheet 3 or non-woven fabrics or overleaf sheet material 3 directly apply the parts of colored materials producing color, variable color by contacting with Excreta or fade.Such as, as colored materials, the mixture etc. of pH indicator and oxidized compound can be used.

As flexible empiecement 7b, such as, (1) can be used to have the fibrous layer that can extend and the sheet material obtained on the two sides of elastic fibrous layer or one side integration, (2) have the fibrous layer that can extend and the sheet material obtain on the two sides of netted elastic sheet material or one side integration, (3) are integrated on the two sides of elastic sheet material or one side that comprise elastica the fibrous layer that can extend and the sheet material obtained.As empiecement parts 6a, if be used material usual in the absorbent commodities such as disposable diaper, then can use with no particular limitation, such as, the non-woven fabrics etc. of liquid impermeability can be used.As pull stap 72, if be normally used material in the absorbent commodities such as disposable diaper, then can use with no particular limitation.Such as, as the set portion 71 of pull stap 72, the sunny side parts etc. of " Magic Tape (registered trade mark) " (manufacture of Kuraray company), " QUICKLON (registered trade mark) " (manufacture of YKK company), " Magicloth (registered trade mark) " (manufacture of Kanebo Bell-Touch company) etc. can be used.

In order to carry out the fixing of face sheet 2, back-sheet 3, sidepiece sheet material 5, pull stap 72 etc., be used in the welding process such as normally used heat molten type bonding agent or heating embossing, ultrasonic embossing, high frequency embossing in the absorbent commodities such as disposable diaper.

Action effect when using the disposable diaper 1A of the embodiment of the invention described above (the first invention) is described.

As depicted in figs. 1 and 2, diaper 1A has absorber 4, and this absorber 4 comprises: the lower floor's absorber 41 from veutro portion A to drosal part B; With on the skin opposite face being configured in lower floor's absorber 41 and only from the upper strata absorber 42 of veutro portion A to crotch C, the grammes per square metre of the absorbing polymeric of upper strata absorber 42 is less than the grammes per square metre of the absorbing polymeric of lower floor's absorber 41.Therefore, in upper strata absorber 42, become the structure that urine easily spreads.And, the grammes per square metre belonging to the absorbing polymeric in the region of the upper strata absorber 42 main absorption region 4M overlapping with lower floor absorber 41 in lower floor's absorber 41 is greater than the grammes per square metre of the absorbing polymeric in the region of the secondary absorption region 4E belonged to beyond main absorption region 4M, therefore, the urine shifted from upper strata absorber 42 easily keeps primarily of main absorption region 4M.In addition, as shown in Figure 3, when longitudinal direction (Y-direction) upper section observes diaper 1, indicator the area of application 60 is configured in main absorption region 4M, and the end 60b of the drosal part B side of indicator the area of application 60 is configured near the end 4Mb of drosal part B side of main absorption region 4M.Therefore, utilize the urine kept primarily of main absorption region 4M, the indicator 6 easily variable color exactly of indicator the area of application 60, the accuracy in replacing period of diaper 1A promotes.Like this, the accuracy in replacing period of diaper 1A promotes, and therefore, according to diaper 1A, urine not easily spills from crotch C part.

In addition, in diaper 1A, as shown in Figure 3, the end 60a of the A side, veutro portion of the longitudinal direction (Y-direction) of indicator the area of application 60 is configured near the end 4Ma of the A side, veutro portion of the longitudinal direction (Y-direction) of main absorption region 4M.Therefore, can confirm until the end of main absorption region 4M is absorbed with urine at a glance, therefore, the accuracy changing period promotes further.

Especially, in diaper 1A, indicator the area of application 60 as shown in Figure 3, the end 60b of its drosal part B side is configured to the position consistency with the end 4Mb of the drosal part B side of main absorption region 4M, and the end 60a of its A side, veutro portion is configured to the position consistency with the end 4Ma of the A side, veutro portion of main absorption region 4M.Therefore, utilize the urine kept primarily of main absorption region 4M, the indicator 6 more easily variable color exactly of indicator the area of application 60, the accuracy in replacing period of diaper 1A promotes further.

Next, according to Fig. 5 and Fig. 6, the Breeches type disposable diaper 1B (hereinafter also referred to as " diaper 1B ") of the second embodiment as the present invention's (the first invention) is described.

About the diaper 1B of the second embodiment, the aspect different to the diaper 1A from the first embodiment is described.Not specified aspect is identical with diaper 1A, suitably the explanation of application diaper 1A.

As shown in Figure 5 and Figure 6, diaper 1B is configured with the hydrophilic sublevel sheet material 8 more not easily being compressed (work done during compression is low) than upper strata absorber 42 between absorber 4 and face sheet 2.The sublevel sheet material 8 that diaper 1B has is rectangular shape when overlooking, as shown in Figure 5, be formed as the horizontal length of (X-direction) identical with the length of the transverse direction (X-direction) of upper strata absorber 42, and longitudinally the length of (Y-direction) is identical with the length of the longitudinal direction (Y-direction) of upper strata absorber 42.That is, the sublevel sheet material 42 of diaper 1B as shown in Figure 6, and configuration is fixed on the skin opposite face of the upper strata absorber 42 of absorber 44, is only configured to crotch C from veutro portion A, is not configured in drosal part B.

Sublevel sheet material 8 its grammes per square metre preferred is 10g/m ²above 100g/m ²below.As sublevel sheet material 8, the sheet material based on hydrophilic fibre (content of hydrophilic fibre is preferably the sheet material of more than 90 quality %) can be used, as this sheet material, such as can enumerate paper, non-woven fabrics, screen cloth (net) etc., be particularly preferably the non-woven fabrics of hot blast or resin-bonded etc.As hydrophilic fibre, as long as have the fiber of hydrophilic surface, and the fiber that fiber has the sheet material of high-freedom degree each other can be formed under its moisture state, then can use with no particular limitation, such as, polyethylene, polypropylene or the polyethylene terephthalate after hydrophiling or their composite fibre can be used.In addition, sublevel sheet material 8, except containing except hydrophilic fibre, also can contain other composition such as water absorbent polymer, deodorizer etc.

The work done during compression of sublevel sheet material 8 is preferably 50gcm/cm ²above, 100gcm/cm is more preferably ²above, and be preferably 500gcm/cm ²below, 400gcm/cm is more preferably ²below, specifically, 50gcm/cm is preferably ²above 500gcm/cm ²below, 100gcm/cm is more preferably ²above 400gcm/cm ²below.The work done during compression of lower floor's absorber 41 is preferably 200gcm/cm ²above, 300gcm/cm is more preferably ²above, and be preferably 1200gcm/cm ²below, 900gcm/cm is more preferably ²below, specifically, 200gcm/cm is preferably ²above 1200gcm/cm ²below, 300gcm/cm is more preferably ²above 900gcm/cm ²below.The work done during compression of upper strata absorber 42 is preferably 300gcm/cm ²above, 400gcm/cm is more preferably ²above, and be preferably 1200gcm/cm ²below, 800gcm/cm is more preferably ²below, specifically, 300gcm/cm is preferably ²above 1200gcm/cm ²below, 400gcm/cm is more preferably ²above 800gcm/cm ²below.Especially, promote from the view point of diffusibility when making pressurization, the work done during compression of sublevel sheet material 8 is preferably than the work done during compression height 50gcm/cm of upper strata absorber 42 ²above, more preferably high 100gcm/cm ²above.Work done during compression utilizes following methods to measure.The value of work done during compression is more high more easily to be compressed (easy conquassation), is worth more lowly more not easily to be compressed (not easily conquassation).

The assay method > of < work done during compression

About the mensuration of work done during compression, by using the work done during compression adding the compression test working sample of the KES-FB3-AUTO-A that Multi-Technology Co., Ltd's (stock) manufactures: WC value (unit: gcm/c ²).Condition determination is compression speed: 0.10mm/sec, compression maximum load condition: 50gf/cm ².At the long-pending fine thing that measuring object is cellulose fibre or polymer, it is coated that they are not wrapped by part etc., measures comparatively at need, grammes per square metre also can be utilized for 10g/m ²~ 30g/m ²spun-bonded non-woven fabrics coated and make sample strip.3 times are measured, using its meansigma methods as work done during compression (gcm/cm for the different part in sample strip ²).

Action effect when using the diaper 1B of second embodiment of the invention described above (the first invention) is described.

About the effect of the diaper 1B of the second embodiment, the aspect different to the effect of the diaper 1A from the first embodiment is described.Not specified aspect is identical with the effect of diaper 1A, suitably the explanation of the effect of application diaper 1A.

Diaper 1B as shown in Figure 5 and Figure 6, is configured with the work done during compression hydrophilic sublevel sheet material 8 that namely than upper strata absorber 42 more not easily compressed (work done during compression lower) less of upper strata absorber 42 between absorber 4 and face sheet 2.Therefore, it is possible to strengthen urine absorption ability, reduce the phenomenon (rewetting) that the urine absorbed is back to face sheet 2 side.Especially, in diaper 1B, as shown in Figure 5 and Figure 6, sublevel 42 is only configured from veutro portion A to crotch C, therefore, the urine absorption ability of the urine kept primarily of main absorption region 4M can be strengthened, owing to not being configured in drosal part B, therefore not easily impact is brought on the variable color of the indicator 6 of indicator the area of application 60.

The absorbent commodity of the present invention's (the first invention), not by any restriction of the diaper 1A of above-mentioned first embodiment, the diaper 1B of above-mentioned second embodiment, can suitably change.In addition, each constitutive requirements in the diaper 1A ~ 1B of above-mentioned the first ~ the second embodiment can suitably carry out combining and implement in the scope of purport not departing from the present invention's (the first invention).

Such as, the absorbent commodity of the present invention's (the first invention) is except the flat type disposable diaper as above-mentioned diaper 1A, 1B, also can be Breeches type disposable diaper, also can be the such as sanitary napkin beyond disposable diaper, hold diaper etc.

Below, for the absorbent commodity of the present invention's (the second invention), based on the disposable diaper as its preferred embodiment, be described with reference to accompanying drawing.The diaper 1C of present embodiment as shown in Figure 8 and Figure 9, comprises absorber 4 and is configured in the back-sheet 3 of non-skin opposite face side of this absorber 4, and have longitudinal Y of the fore-and-aft direction being equivalent to wearer and the horizontal X orthogonal with it.

In addition, in this manual, skin opposite face be in absorbent commodity (diaper 1C) or its component parts (face sheet 2, back-sheet 3, absorber 4 etc.) when wearing absorbent commodity towards the face of the skin side of wearer, non-skin opposite face be in absorbent commodity or its component parts when wearing absorbent commodity towards the face of the side (wear the clothes side) contrary with skin side.In addition, longitudinal Y is consistent with the direction (length direction) on the long limit along absorbent commodity or its component parts, and horizontal X is consistent with the width of absorbent commodity or its component parts.

Be described further, as shown in Figure 8 and Figure 9, diaper 1C is so-called flat type disposable diaper, comprising: the face sheet 2 forming the liquid permeability of skin opposite face; Form the liquid impermeability of non-skin opposite face or the back-sheet 3 of water-repellancy (following, to they are referred to liquid impermeability); And be configured in the absorber 4 of the liquid retainability between two sheet materials 2,3, as shown in Figure 8, being shape longer on a direction (longitudinal Y) when overlooking, being essentially the shape of lengthwise.Face sheet 2 and back-sheet 3 have the size being greater than absorber 4 respectively, extend laterally from the periphery of absorber 4.

As shown in Figure 8, diaper 1C have on longitudinal Y the veutro being configured in wearer when wearing veutro portion A, be configured in the crotch B of crotch part and be configured in the drosal part C of dorsal part.The excretory portion counterpart that crotch B is included in when wearing and the excretory portion of wearer is oppositely disposed.In diaper 1C, the both side edges of the Y along the longitudinal of crotch B is bent inwardly into arc-shaped, as shown in Figure 8, and the hourglass-shaped shape of the shrinking to the inside of the central part when overlooking with longitudinal Y.

Veutro portion A is the region within an end 1a (longitudinal end being configured in the position of the veutro of wearer when wearing in the absorbent commodity) 100 ~ 180mm of longitudinal Y of distance diaper 1C, accounts for 25 ~ 40% of the total length of longitudinal Y of diaper 1C.In addition, drosal part C is the region within the other end 1c (longitudinal end being configured in the position of the dorsal part of wearer when wearing in the absorbent commodity) 100 ~ 180mm of longitudinal Y of distance diaper 1C, accounts for 25 ~ 40% of the total length of longitudinal Y of diaper 1C.In addition, crotch B is the region clipped by veutro portion A and drosal part C, accounts for 25 ~ 40% of the total length of longitudinal Y of diaper 1C.

As shown in Figure 9, absorber 4 comprise liquid retainability absorbent core 40 and respectively the skin opposite face of this absorbent core 40 coated and the water penetration of non-skin opposite face cored sheet material 41 and form.Cored sheet material 41 comprises: the first cored sheet material 41a (hydrophilic non-woven) of the skin opposite face (with the opposite face of face sheet 2) of coated absorbent core 40; With the second cored sheet material 41b (hydrophobic nonwoven), the non-skin opposite face (with the opposite face of back-sheet 3) of its coated absorbent core 40 and be rolled up to the lateral margin of the Y along the longitudinal of skin opposite face.Cored sheet material 41 is for maintaining the conformality of absorbent core 40.Also can be engaged by known engaging mechanisms such as hot melten type bonding agents between absorbent core 40 with cored sheet material 41.

Absorber 4 is clamped by face sheet 2 and back-sheet 3, fixing.In each of the waist 5,5 extended in front-rear direction at the front and back ora terminalis of the longitudinal Y from absorber 4, waist elastic members 51 be fixed on elongation state formed this waist 5 two sheet materials 2,3 between, in addition, in each of the leg 6,6 extended at horizontal X at the left and right lateral margin of the Y along the longitudinal from absorber 4, leg elastic members 61 be fixed on elongation state formed this leg 6 two sheet materials 2,3 between, when wearing diaper 1C, form waist gauffer and leg creases by the contraction of these elastomeric elements 51,61.In addition, stereo enclosure 7 is respectively arranged with in the left and right sides of the Y along the longitudinal of face sheet 2 side of diaper 1C.Stereo enclosure elastomeric element 71 is fixed on the free end of stereo enclosure 7 with elongation state, when wearing diaper 1C, forms three-dimensional gauffer by the contraction of this elastomeric element 71.

As shown in Figure 8, the edge, both sides of the Y along the longitudinal of the drosal part C of diaper 1C is provided with a pair pull stap 8,8.The not shown set portion be made up of the sunny side parts of mechanicalness face securing member (planar fastener) is installed at pull stap 8.In addition, the non-skin opposite face (the non-skin opposite face of back-sheet 3) of the veutro portion A of diaper 1C be formed by the back parts of mechanicalness face securing member (planar fastener) form by set region 9.Utilized known joint method (such as bonding agent or heat sealing etc.) that the back part bonding of mechanicalness face securing member is fixed on the non-skin opposite face of back-sheet 3 by set region 9 and formed, being detachably bonded to the above-mentioned set portion of pull stap 8.

As shown in Figure 8 and Figure 9, back-sheet 3 has the lit-par-lit structure of poisture-penetrability sheet material 30 and non-woven fabrics 31.Poisture-penetrability sheet material 30 is the internal layer sheet materials of the skin opposite face (with the opposite face of absorber 4) forming back-sheet 3, non-woven fabrics 31 is the outer layer sheets of the non-skin opposite face (outer surface of diaper 1C) forming back-sheet 3, above-mentioned lit-par-lit structure, according to distance absorber 4 order from the close-by examples to those far off, comprises poisture-penetrability sheet material 30, non-woven fabrics 31 and forming.As shown in Figure 8, poisture-penetrability sheet material 30 is identical with the length of longitudinal Y of non-woven fabrics 31, but about the length (width) of horizontal X, poisture-penetrability sheet material 30 is shorter than non-woven fabrics 31, and width is relatively formed narrower.Poisture-penetrability sheet material 30 and non-woven fabrics 31 all configure throughout veutro portion A, crotch B and drosal part C.The size of poisture-penetrability sheet material 30 is greater than absorber 4, and the whole region of the non-skin opposite face (with the opposite face of back-sheet 3) of absorber 4 is coated by poisture-penetrability sheet material 30.Also can be engaged by known joint methods such as hot melten type bonding agents between poisture-penetrability sheet material 30 with non-woven fabrics 31.

As the above each component parts forming diaper 1C, the known parts of prior art in this technical field can be used with no particular limitation.As face sheet 2, liquid permeability sheet material can be used, such as, can hydrophilic non-woven etc. be used.As absorbent core 40, such as, wood pulp can be used, comprise hydrophilic agent process after the hydrophilic fibre such as the long and slender dimension of conjunction fiber assembly or granular water absorbent polymer is remained on the material obtained in this fiber assembly.As the cored sheet material 41 (41a, 41b) of coated absorbent core 40, such as, the sheet material of the liquid permeability such as the paper such as toilet paper or various non-woven fabrics, apertured film can be used.As elastomeric element 51,61,71, various elastomeric material can be used.

About cored sheet material 41 (41a, 41b), especially with regard to making the object of following indicator 10 variable color after absorbent core 40 fully absorbs moisture, the the second cored sheet material 41b contacted with indicator 10 is preferably hydrophobic sheet material, specifically, the spun-bonded non-woven fabrics of the vistanex comprising polypropylene etc., spunbond-melt blown (SM) non-woven fabrics, spunbond-melt blown-spunbond (SMS) non-woven fabrics, spunbond-meltblown-meltblown-spunbond (SMMS) non-woven fabrics etc. can be used.The grammes per square metre of cored sheet material 41 (41a, 41b) is preferably 8 ~ 25g/m ², be more preferably 10 ~ 20g/m ².In addition, by selecting the watertight degree of the non-woven fabrics for cored sheet material 41b, the period of the variable color of following indicator 10 can be adjusted.As an example of absorber 4 as above, the hydrophilic cored sheet material 41a of skin opposite face side is by SMS non-woven fabrics (the grammes per square metre 15g/m at polypropylene ²) coating interfacial agent and implement the sheet material of hydrophilicity-imparting treatment, and the hydrophobic cored sheet material 41b of non-skin opposite face side is SMS non-woven fabrics (the grammes per square metre 15g/m of polypropylene ²), thereby, it is possible to obtain the absorptive lifting effect of the moisture of the cored sheet material 41a from skin opposite face side and utilize that the cored sheet material 41b's of non-skin opposite face side block liquid effect.Liquid effect is blocked according to the latter, before absorbent core 40 fully absorbs moisture (absorbent core 40 be in the state that can use during), moisture not easily passs through the cored sheet material 41b of non-skin opposite face side, thereby, it is possible to effectively prevent from reaching the variable color of the indicator 10 before replacing period.

As the poisture-penetrability sheet material 30 forming back-sheet 3, can use " by there is the minute aperture of through sheet material in a thickness direction and there is the resin molding of poisture-penetrability ", as this resin molding, such as, the film of the resin comprising the polyolefin such as polyethylene, polypropylene etc. can be used.As the non-woven fabrics 31 forming back-sheet 3, such as, spun-bonded non-woven fabrics, spunbond-melt blown-spunbond (SMS) non-woven fabrics, spunbond-meltblown-meltblown-spunbond (SMMS) non-woven fabrics, hot-wind nonwoven cloth, spun-laced nonwoven fabric etc. can be used.About back-sheet 3, this back-sheet 3 entirety has liquid impermeability, and poisture-penetrability sheet material 30 and non-woven fabrics 31 also not necessarily have liquid impermeability.The grammes per square metre of poisture-penetrability sheet material 30 is preferably 5g/m ²above, 8g/m is more preferably ²above, and, be preferably 50g/m ²below, 40g/m is more preferably ²below, more specifically, 10 ~ 30g/m is preferably ², be more preferably 15 ~ 25g/m ².In addition, the grammes per square metre of non-woven fabrics 31 is preferably 5g/m ²above, 8g/m is more preferably ²above, and, be preferably 40g/m ²below, 30g/m is more preferably ²below, more specifically, 10 ~ 25g/m is preferably ², be more preferably 12 ~ 20g/m ².

As shown in Figure 8 and Figure 9, back-sheet 3 in crotch B and between absorber 4, more particularly between poisture-penetrability sheet material 30 and cored sheet material 41b, is configured with by with moisture or the contact of body fluid (urine, feces, menses etc.) and the indicator 10 of variable color.Indicator 10 comprises hydrophilic compositions, the adhesive that this hydrophilic compositions comprises the electrochromic substance by visually changing with contact with moisture and plays function as bonding agent, indicator 10 informs to except the function of the indicator parts of observer (such as mother) except the excretion situation had as the body fluid by wearer's (such as infant), also has the function as the joint elements will engaged between back-sheet 3 with absorber 4.Indicator 10 is by configuring at the skin opposite face of poisture-penetrability sheet material 30 or the non-skin opposite face above-mentioned hydrophilic compositions of coating of cored sheet material 41b.Color before and after the variable color of indicator 10 is different from the true qualities of poisture-penetrability sheet material 30 and non-woven fabrics 31 respectively.In the present embodiment, the raw-material color that the true qualities of poisture-penetrability sheet material 30 and non-woven fabrics 31 plant the back-sheet in absorbent commodity is therewith similarly white, color (yellow) before the variable color of indicator 10 and the color (blueness) after variable color are all visible through back-sheet 3 (poisture-penetrability sheet material 30 and non-woven fabrics 31), can see from the outside of diaper 1C.

In the present embodiment, indicator 10 is provided with 1 linearity indicator extended at longitudinal Y at the central part of the horizontal X of diaper 1C, and is formed in the total length of longitudinal Y of crotch B and extend out.By like this indicator 10 of the excretion situation of body fluid such as notice urine etc. being configured in the position and crotch B that body fluid directly drains, the variable color of the indicator 10 in crotch B, by with can distinguish clearly the comparing of veutro portion A or drosal part C of relative difficult variable color.The length of longitudinal Y of indicator 10 is preferably 100 ~ 400mm, is more preferably 150 ~ 300mm, and horizontal length (width) is preferably 1 ~ 10mm, is more preferably 2 ~ 6mm.

As the above-mentioned electrochromic substance comprised in indicator 10 (hydrophilic compositions), enumerate such as pH indicator.PH indicator suitably can be selected according to the kind etc. of the absorbent commodity of application indicator 10, when absorbent commodity as present embodiment is disposable diaper, be preferably used in the material changed with the front and back color of the contact of urine, such as, the material of variable color when to be preferably the pH value such as bromophenol blue, methyl orange, alizarin S, bromocresol green, C.I. 13020., bromocresol purple, "diazoresorcinol" be 3 ~ 7.

In the present embodiment, indicator 10 (before moisture or bioresorbable) before variable color is yellow, and be blue after variable color, the color before and after the variable color of indicator 10 has the relation of complementary color each other.The color with complementary color relationship refers to the color that the color combination of the relation being positioned at antipodal position in hue circle, such as " red/bluish-green " " orange/blue " " yellow/royal purple " etc. are complementary.Complementary color color combination each other sets off respective color mutually.

As being yellow before variable color and be blue electrochromic substance (pH indicator) after variable color, such as, bromocresol green can be enumerated.

In addition, as the above-mentioned adhesive comprised in indicator 10 (hydrophilic compositions), with regard to the aspect of the intermiscibility with above-mentioned electrochromic substance, preferably there is hydrophilic.As such material, such as, can enumerate is being at least the hydrophilic polymer bonding agent engaged between back-sheet 3 (poisture-penetrability sheet material 30) with absorber 4 (cored sheet material 41b) being played function with contact with moisture previous crops, specifically, such as, Polyethylene Glycol (PEG), polypropylene glycol (PPG), polyvinyl alcohol (PVA), polyamide, Kollidone 90F etc. can be enumerated.

The poisture-penetrability sheet material 30 of a dominant features of the diaper 1C as present embodiment is described, as shown in figs, indicator corresponding region 30A overlapping with indicator 10 on the thickness direction of diaper 1C in poisture-penetrability sheet material 30 (as shown in Figure 8, the region overlapping with indicator 10 when overlooking), be the design element 35 of same color or similar color to have in the region (non-icon) of the square square shape of 1cm that multiple modes is printed with to the color after the variable color of indicator 10.Multiple design element 35 is respectively by surrounding without Printing Department 36 of not implementing to print.Without the true qualities that Printing Department 36 is poisture-penetrability sheet materials 30, be white in the present embodiment.In the present embodiment, design element 35 is printed in the non-skin opposite face (with the opposite face of non-woven fabrics 31) of poisture-penetrability sheet material 30.

In the present embodiment, as shown in Figure 10, multiple design element 35 is formed as overlooking into point-like (round-shaped) respectively, and discrete shape ground is printed in poisture-penetrability sheet material 30 (indicator corresponding region 30A) with regular pattern.The size of multiple design element 35 is even.In the present embodiment, applied throughout the whole region of the non-skin opposite face (with the opposite face of non-woven fabrics 31) of poisture-penetrability sheet material 30 by multiple design element 35 and the printed design formed without Printing Department 36 of surrounding them.Part in addition in indicator corresponding region 30A and poisture-penetrability sheet material 30, the printed patterns (above-mentioned printed design) of design element 35 is identical.

As mentioned above, in the present embodiment, after the variable color of indicator 10, the color of (after moisture or bioresorbable) is blue, and therefore, the multiple design elements 35 being printed on poisture-penetrability sheet material 30 are respectively blue or its similar color.Therefore, in the present embodiment, the color (yellow) before the color of design element 35 and the variable color of indicator 10 has the relation of complementary color each other.

In the present invention's (the second invention), about the similarity of the color of the color after the variable color of indicator and design element, as long as the degree of two color similarities can be picked out at a glance for the observer with common attention.From the view point of making the distinguishing property of observer improve, for the color of design element 35, as opinion scale effectively L ﹡ C ﹡ h color space, can be specified by h value.Specifically, preferably the difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color of the color after the variable color of indicator 10 and design element 35 is set to 0 ° ~ 30 °, is more preferably set to 0 ° ~ 20 °.By above-mentioned Δ h is set to above-mentioned scope, make the indicator after variable color 10 and design element 35 visually not easily pick out difference, observer can be made to feel, and both have similar color.The mensuration of above-mentioned L ﹡ C ﹡ h can use simple type light splitting colour difference meter NF333 (manufacture of Japanese electric color industry (stock) company, trade name) to measure.Condition determination and assay method it is possible to the ND110 sensor using φ 4mm, with light source C/2, angle of visibility 2 ° (meansigma methods measured for 3 times)) measure.As indicator 10, such as, bromocresol green is used as electrochromic substance (pH indicator), as long as what show blueness after what display was yellow before variable color propose color, variable color carries color, then the value of the L ﹡ C ﹡ h of the yellow before can the enumerating variable color material that to be the value of the L ﹡ C ﹡ h of the blueness after (L ﹡ value: 90.06, C ﹡ value: 28.23, h value: 104.19 °), variable color be (L ﹡ value: 74.13, C ﹡ value: 9.39, h value: 175.93 °).

Like this, be the indicator corresponding region 30A of the poisture-penetrability sheet material 30 of white in true qualities, print the color different from true qualities there is multiple modes in the region of the square square shape of 1cm and be design element 35 that is mutually homochromy or similar color to the color (blueness) after the variable color of indicator 10, with do not print such design element without decorative pattern diaper compared with, outward appearance is good, and as observing " impression of the color of indicator corresponding region 30A " of observer of diaper 1C from outside, the color of design element 35 is more obvious than true qualities, become the impression of roughly blue (color of turning blue).Thus, the indicator 10 of yellow the bioresorbable such as a part and urine and when changing color to blueness, as shown in Figure 10 (b), the variable color portion 11 of this blueness dies down with the contrast of the indicator corresponding region 30A (poisture-penetrability sheet material 30) of the impression of the color of turning blue of the outer surface side (non-skin opposite face side) in this variable color portion 11 of covering, therefore, can give the indicator 10 of the linearity of the yellow of observer just as extending at longitudinal Y a part (variable color portion 11) disappear impression, its result, observer can be effectively reminded to note the visual change of indicator 10 and the replacing period of diaper 1C.

Especially, in the present embodiment, the discrete shape ground of design element 35 is with regular pattern printing, and the impression therefore giving the color of the indicator corresponding region 30A of observer easily becomes identical with the color of design element 35.Therefore, color (yellow) before the color (blueness) of design element 35 and the variable color of indicator 10 has the relation of complementary color each other, therewith in combination, before the variable color of indicator 10, the indicator corresponding region 30A of the color of turning blue picks out more by force and easily indicator 10 with the contrast of yellow indicator 10, and after indicator 10 variable color, the disappearance sense of observer to above-mentioned variable color portion 11 can be made to make a profound impression.Particularly in the present embodiment, comprise multiple design element 35 to apply throughout the whole region of the non-skin opposite face (with the opposite face of non-woven fabrics 31) of poisture-penetrability sheet material 30 with the printed design without Printing Department 36 of surrounding them, therefore, above-mentioned action effect (lifting of the distinguishing property of the outward appearance of diaper 1C and the visual change of indicator 10) is more effectively played.

But, even if there is relation as above with the color of the design element 35 of the indicator corresponding region 30A of its outer surface side of covering in the color of indicator 10, according to the difference of the printed patterns of design element 35, also there is the probability of the visual disappearing effect in the variable color portion 11 that fully cannot obtain above-mentioned indicator 10.Therefore, in the present embodiment, the printed patterns of design element 35 is set as follows.Namely, as shown in figure 11, in multiple design elements 35 in the 30A of indicator corresponding region any 1 is set to particular design element 35a, 1 that is present in the nearest position of distance particular design element 35a is set to closest to design element 35b, and draw one by particular design element 35a and the imaginary line L closest to design element 35b center separately time, in the length L1 of the part overlapping with particular design element 35a in imaginary line L and imaginary line L with the length L2 closest to the overlapping part of design element 35b, respectively with in imaginary line L with to be specially designed element 35a identical with the length L3 of the part without Printing Department 36 overlap clipped closest to design element 35b, or it is longer than length L3.In addition, according to the shape of design element (particular design element, closest to design element), existence cannot try to achieve it, and " situation of " center " now, draws above-mentioned imaginary line in the mode of " center of gravity " by this design element.In the present embodiment, the interval of multiple design element 35 is even, and relative to the particular design element 35a being positioned at central authorities in Figure 11,6 design elements of surrounding this particular design element 35a all can be used as closest to design element 35b.

On the other hand, with design element 35 (particular design element 35a, closest to design element 35b) overlap length L1 and L2 (L3 > L1 shorter in the length L3 overlapping with without Printing Department 36, L2) time, in indicator corresponding region 30A (poisture-penetrability sheet material 30), ratio shared by its true qualities (being white in present embodiment) becomes too high, consequently, as " impression of the color of indicator corresponding region 30A " of the observer from outside observation diaper 1C, the color (being blue in present embodiment) of this color ratio design element 35 is obvious, become the impression of roughly true qualities (color of turning white).Thus, even if indicator 10 changes color to blueness by the contact with body fluid such as urines, the form and aspect in the variable color portion 11 (with reference to Figure 10 (b)) of above-mentioned blueness are also different from the indicator corresponding region 30A (poisture-penetrability sheet material 30) of the impression of the color of turning white of the outer surface side (non-skin opposite face side) in this variable color portion 11 of covering, therefore, the visual disappearing effect in above-mentioned variable color portion 11 cannot be obtained, and cannot effectively remind observer to note the replacing period of diaper 1C.

From the view point of making above-mentioned action effect play more reliably, the size etc. of each several part of the printed design in poisture-penetrability sheet material 30 preferably sets as follows.

The diameter (being equivalent to the length of length L1 in Figure 11 and L2) overlooking the design element 35 for point-like (round-shaped) is preferably more than 0.3mm, be more preferably more than 0.5mm, and, be preferably below 5mm, be more preferably below 4mm, more specifically, be preferably 0.8 ~ 3mm, be more preferably 1 ~ 2mm.

The length L3 (with reference to Figure 11) overlapping with without Printing Department 36 in imaginary line L is preferably more than 0.2mm, is more preferably more than 0.4mm, and is preferably below 4.5mm, be more preferably below 3.5mm, more specifically, be preferably 0.5 ~ 2.5mm, be more preferably 0.8 ~ 1.5mm.

When length L1, L2 are longer than length L3 (L3 < L1, L2), both ratios (L3/L1 or L3/L2) are preferably 0.2 ~ 0.9, are more preferably 0.5 ~ 0.8.

The quantity (printing density) being present in the quantity of the design element 35 in the region of the square square shape of 1cm and the per unit area of design element 35 is preferably more than 2, be more preferably more than 5, and, be preferably less than 100, be more preferably less than 50, more specifically, be preferably 8 ~ 30, be more preferably 10 ~ 20.When the printing density of design element 35 is too high, when observing diaper 1C from outside, there is indicator 10 to be hidden in design element 35 and be difficult to the probability that distinguishes, on the contrary, when printing density is too low, there is the probability of the visual disappearing effect in the variable color portion 11 that fully cannot obtain above-mentioned indicator 10.

In the present invention's (the second invention), the quantity (printing density) of the per unit area of design element 35 both can be identical in the whole region of poisture-penetrability sheet material 30, also can local difference.Especially, at poisture-penetrability sheet material 30 as in the present embodiment throughout veutro portion A, when crotch B and drosal part C configures, veutro portion A and drosal part C are compared with crotch B, the quantity of the per unit area of design element 35 is more (namely, in crotch B, the number ratio veutro portion A of the per unit area of design element 35 and drosal part C is few) time, because usual veutro portion A or drosal part C is the easier position observed from outside compared with crotch B, therefore the color (for blue present embodiment) of observer to design element 35 of observing diaper 1C from outside is made to make a profound impression, it is the impression of same color that the impression of observer to the color of the outward appearance of diaper 1C can be made to stay with the color of design element 35, consequently, fully can obtain the visual disappearing effect in the variable color portion 11 of above-mentioned indicator 10.

Play more reliably from the view point of making above-mentioned action effect, veutro portion A or drosal part C is preferably 1.1 ~ 2.5 with the ratio (quantity of the per unit area of the design element 35 in the quantity/crotch B of the per unit area of the design element 35 in veutro portion A or drosal part C) of the quantity of the per unit area of the design element 35 in crotch B, is more preferably 1.2 ~ 2.0.In addition, in veutro portion A and drosal part C, the quantity of the per unit area of design element 35 both can be identical, also can be different.

As shown in Figure 8, the part being positioned at the outside of the horizontal X of indicator 10 in the side edge part of the Y along the longitudinal of diaper 1C, with the mode can seen from the outside of the diaper 1C labelling 15 that to be printed with to the color (present embodiment for yellow) before the variable color of indicator 10 be same color or similar color.Herein, the similarity of the color of the color before the variable color of indicator 10 and labelling 15 is identical with the similarity of the color of the color after the variable color of above-mentioned indicator 10 and design element 35.Labelling 15 uses the ink etc. with resistance to water to print, even if make itself and moisture or bioresorbable also invariant color.In the present embodiment, the color (blueness) after the color (yellow) of labelling 15 and the variable color of indicator 10 has the relation of complementary color each other.

In the present embodiment, labelling 15 is formed as overlooking into quadrangle form, and the edge, the left and right sides of diaper 1C in crotch B, more specifically, a pair is printed with at the non-skin opposite face (with the opposite face of non-woven fabrics 31) of the edge, the left and right sides of the Y along the longitudinal of poisture-penetrability sheet material 30.That is, labelling 15 is printed on the face identical with the printing surface of design element 35 in poisture-penetrability sheet material 30.A pair labelling 15,15 lays respectively at the position before and after from the central authorities of longitudinal Y of diaper 1C within 30mm on longitudinal Y of diaper 1C.The position of longitudinal Y of above-mentioned labelling 15 is roughly the same with the position of longitudinal Y at the position of accepting the body fluid such as urine that wearer drain in diaper 1C at first, is generally the position of indicator 10 initial generation variable color.

The labelling 15 being same color or similar color to the color (yellow) before the variable color of indicator 10 is like this mode externally visibly can be printed on the outside (side edge part of diaper 1C) of the horizontal X of indicator 10, then a part for indicator 10 is (especially by a pair labelling 15, 15 parts clipped) when changing color to blueness by the contact with body fluid such as urines, by the variable color portion of this blueness 11 and the labelling 15 of a pair yellow in outside of horizontal X being positioned at this variable color portion 11, the contrast of 15, observer more clearly can pick out the formation in variable color portion 11, the visual disappearing effect in namely above-mentioned variable color portion 11.Color before the variable color of indicator 10 can judge with above-mentioned L ﹡ C ﹡ h color space to the degree of the mutually homochromy or similar color between labelling 15, can be specified by h value.Specifically, preferably the difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color of the color before the variable color of indicator 10 and labelling 15 is set to 0 ° ~ 30 °, is more preferably set to 0 ° ~ 20 °.

Above, the present invention's (the second invention) is illustrated, but the present invention's (the second invention) is not restricted to above-mentioned embodiment and can suitably changes.Such as, indicator is configured between back-sheet in crotch and absorber, and its configuration mode (quantity, plan view shape, position etc.) is not restricted to above-mentioned embodiment.In addition, the shape of design element is not restricted to point-like (round-shaped) as embodiment described above, can be the various shapes such as square shape, rectangular shape, diamond shape, hexagonal shape, elliptical shape, star shapes.In addition, in the above-described embodiment, multiple design element is all identical shape, but also can mix variform multiple design element.

In addition, in the above-described embodiment, design element and labelling are all printed on the non-skin opposite face (with the opposite face of non-woven fabrics) of poisture-penetrability sheet material, but also can be printed on skin opposite face (with the opposite face of absorber), in addition, design element and labelling also can not be printed on the same face of poisture-penetrability sheet material.In addition, the absorbent commodity of the present invention's (the second invention) is not restricted to flat type disposable diaper, extensively comprise for absorbing the article of liquid of discharging from human body, also comprise Breeches type disposable diaper, the physiology phase sanitary towel, underpants for female used in menstrual period etc.

The part that only an above-mentioned embodiment has all or respectively suitably can utilize between this invention in each invention (the first and second inventions) mutually.For above-mentioned embodiment, further following absorbent commodity is disclosed.

＜1＞

A kind of absorbent commodity, it has the absorbent main body of lengthwise, and the absorbent main body of this lengthwise comprises: the face sheet being configured in skin opposite face side; Be configured in the back-sheet of non-skin opposite face side; And the absorber be configured between these two sheet materials, and the absorbent main body of this lengthwise is divided into veutro portion, drosal part and crotch, in this absorbent main body, between this back-sheet and this absorber, longitudinally be configured with the indicator the area of application being coated with and being notified the indicator of excretion situation by the change of color, in this absorbent commodity

Above-mentioned absorber comprises absorbing polymeric and cellulose fibre,

Above-mentioned absorber comprises: from above-mentioned veutro portion until lower floor's absorber of above-mentioned drosal part; Be configured on the skin opposite face of this lower floor's absorber from above-mentioned veutro portion until the upper strata absorber of above-mentioned crotch, when overlooking above-mentioned absorber, this absorber is divided into: the main absorption region of this upper strata absorber and this lower floor's absorber overlap; With the secondary absorption region beyond this main absorption region,

The grammes per square metre belonging to the above-mentioned absorbing polymeric in the region of above-mentioned main absorption region in above-mentioned lower floor absorber is greater than the grammes per square metre of the above-mentioned absorbing polymeric in the region belonging to above-mentioned absorption region,

The grammes per square metre of the above-mentioned absorbing polymeric of above-mentioned upper strata absorber is less than the grammes per square metre of the above-mentioned absorbing polymeric of above-mentioned lower floor absorber, or above-mentioned upper strata absorber does not comprise above-mentioned absorbing polymeric,

When overlooking above-mentioned absorbent commodity, above-mentioned indicator the area of application is configured in above-mentioned main absorption region, and the end of the drosal part side of the longitudinal direction of this indicator the area of application is configured near the end of drosal part side of the longitudinal direction of this main absorption region.

＜2＞

As the absorbent commodity that above-mentioned < 1 > records, wherein, the end of the abdomen lateral side of the longitudinal direction of above-mentioned indicator the area of application is configured near the end of the abdomen lateral side of the longitudinal direction of above-mentioned main absorption region.

＜3＞

As the absorbent commodity that above-mentioned < 1 > or < 2 > records, wherein, the end of the drosal part side of the longitudinal direction of above-mentioned indicator the area of application, with the ora terminalis of the end of the drosal part side of the longitudinal direction of above-mentioned main absorption region for benchmark, be positioned at the scope of about 1/10th of the length of the longitudinal direction of this main absorption region.

＜4＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 3 >, wherein, the end of the abdomen lateral side of the longitudinal direction of above-mentioned indicator the area of application, with the ora terminalis of the end of the abdomen lateral side of the longitudinal direction of above-mentioned main absorption region for benchmark, be positioned at the scope of about 1/10th of the length of the longitudinal direction of this main absorption region.

＜5＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 4 >, wherein, along the position of the centrage at longitudinal extension in above-mentioned indicator the area of application, intermarginally in the front and back end of the longitudinal direction of above-mentioned upper strata absorber be configured with 1 indicator line, between each of both side edges in the both sides along the longitudinal of 1 this indicator line and this upper strata absorber, intermarginally in the front and back end of the longitudinal direction of this upper strata absorber to be configured with at 2 indicator lines extending of longitudinal direction and this centerline parallel ground.

＜6＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 5 >, wherein, above-mentioned indicator the area of application is in the intermarginal configuration in front and back end of the longitudinal direction of above-mentioned upper strata absorber, the end of the drosal part side of the longitudinal direction of this indicator the area of application is configured to the position consistency of the end of the drosal part side of the longitudinal direction of main absorption region with this, the end of the abdomen lateral side of the longitudinal direction of this indicator the area of application is configured to the position consistency of the end of the abdomen lateral side of the longitudinal direction of main absorption region with this.

＜7＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 6 >, wherein, the cellulose fibre of above-mentioned upper strata absorber is the cellulose fibre after being cross-linked.

＜8＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 7 >, wherein, between above-mentioned absorber and above-mentioned face sheet, be configured with the hydrophilic sublevel sheet material of work done during compression lower than above-mentioned upper strata absorber (not easily being compressed).

＜9＞

As the absorbent commodity that above-mentioned < 8 > records, wherein, above-mentioned sublevel sheet material is rectangular shape when overlooking, configuration is fixed on the skin opposite face of above-mentioned upper strata absorber of above-mentioned absorber, and only from veutro portion until crotch be configured, be not configured in drosal part.

＜10＞

As the absorbent commodity that above-mentioned < 8 > or < 9 > records, wherein, the grammes per square metre of above-mentioned sublevel sheet material is 10g/m ²above 100g/m ²below.

＜11＞

The absorbent commodity recorded any one of above-mentioned < 8 > to < 10 >, wherein, above-mentioned sublevel sheet material is the sheet material based on hydrophilic fibre, and the sheet material of to be the content of this hydrophilic fibre be more than 90 quality %, this sheet material is any one in paper, non-woven fabrics, screen cloth.

＜12＞

The absorbent commodity recorded any one of above-mentioned < 8 > to < 11 >, wherein, the work done during compression of above-mentioned sublevel sheet material is 50gcm/cm ²above 500gcm/cm ²below, 100gcm/cm is preferably ²above 400gcm/cm ²below.

＜13＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 12 >, wherein, above-mentioned lower floor absorber passes through to be formed by coating member coated lower floor absorbent core,

The liquid permeability of above-mentioned coating member is lower than the liquid permeability of above-mentioned upper strata absorber.

＜14＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 13 >, wherein, when overlooking above-mentioned absorbent commodity, above-mentioned indicator the area of application, near the front and back end longitudinally arriving above-mentioned upper strata absorber, is applied to the both sides of above-mentioned upper strata absorber in the part of horizontal at least the area of application.

＜15＞

As the absorbent commodity that above-mentioned < 14 > records, wherein, in above-mentioned indicator the area of application, circular indicator in longitudinal left and right alternately and coated at spaced intervals, be formed in the group of the indicator of longitudinal extension, in this indicator the area of application, the position consistency of the lateral margin of the position of the side of the indicator of the circle of width side and a sidepiece along the longitudinal of above-mentioned upper strata absorber, the position consistency of the lateral margin of the position of the opposite side of the indicator of the circle of width opposite side and the other side along the longitudinal of this upper strata absorber, the position consistency of the ora terminalis of the most position foremost of indicator of circle of backrest lateral side and the end of the drosal part side of the longitudinal direction of this upper strata absorber, lean on most the position consistency of the ora terminalis of the position bottom of indicator of circle of abdomen lateral side and the end of the abdomen lateral side of the longitudinal direction of this upper strata absorber.

＜16＞

As the absorbent commodity that above-mentioned < 14 > records, wherein, in above-mentioned indicator the area of application, be configured with the indicator with 2 lines in cornerwise position of above-mentioned upper strata absorber, above-mentioned indicator the area of application is the region of encirclement 2 these indicators.

＜17＞

As the absorbent commodity that above-mentioned < 14 > records, wherein, in above-mentioned indicator the area of application, along the position of the both side edges of the both sides longitudinally of above-mentioned upper strata absorber and the position of the centrage at longitudinal extension of this upper strata absorber, be configured with 3 indicator lines at longitudinal extension, the scope of surrounding 3 these indicator lines is above-mentioned indicator the area of application, in this indicator the area of application, the position consistency of the lateral margin of the position of the indicator line of side and a sidepiece along the longitudinal of this upper strata absorber, the position consistency of the lateral margin of the position of the indicator line of opposite side and the other side along the longitudinal of upper strata absorber, and, article 3, in indicator line, the position consistency of the ora terminalis of the end of the most position of front end of backrest lateral side and the drosal part side of the longitudinal direction of this upper strata absorber, lean on most the position consistency of the ora terminalis of the end of the position of lower end of abdomen lateral side and the abdomen lateral side of the longitudinal direction of this upper strata absorber.

＜18＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 17 >, wherein, above-mentioned upper strata absorber is only formed by upper strata absorbent core,

The grammes per square metre of above-mentioned upper strata absorbent core is 50g/m ²above 500g/m ²below.

＜19＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 18 >, wherein, above-mentioned lower floor absorber uses 1 coating member, to turn back the both sides of this coating member, formed at overlapping mode this lower floor's absorbent core coated of the non-skin opposite face side (back-sheet side) of lower floor's absorbent core each other to make the side edge part of this coating member.

＜20＞

As the absorbent commodity that above-mentioned < 19 > records, wherein, the grammes per square metre of above-mentioned lower floor absorbent core is 100g/m ²above 1000g/m ²below, the grammes per square metre of above-mentioned coating member is 3g/m ²above 20g/m ²below.

＜21＞

As the absorbent commodity that above-mentioned < 19 > or < 20 > records, wherein, the grammes per square metre belonging to the above-mentioned absorbing polymeric in the region of above-mentioned main absorption region in above-mentioned lower floor absorbent core is 50g/m ²above 500g/m ²below, 100g/m is preferably ²above 400g/m ²below, the grammes per square metre belonging to the above-mentioned cellulose fibre in the region of this main absorption region in this lower floor's absorbent core is 0g/m ²above 300g/m ²below, 0g/m is preferably ²above 200g/m ²below.

＜22＞

The absorbent commodity recorded any one of above-mentioned < 19 > to < 21 >, wherein, the grammes per square metre belonging to the above-mentioned absorbing polymeric in the region of above-mentioned absorption region in above-mentioned lower floor absorbent core is 20g/m ²above 400g/m ²below, 50g/m is preferably ²above 300g/m ²below, the grammes per square metre belonging to the above-mentioned cellulose fibre in the region of this absorption region in this lower floor's absorbent core is 0g/m ²above 250g/m ²below, 0g/m is preferably ²above 200g/m ²below.

＜23＞

The absorbent commodity recorded any one of above-mentioned < 19 > to < 22 >, wherein, the 10g/m larger than the grammes per square metre belonging to the absorbing polymeric in the region of above-mentioned absorption region in this lower floor's absorbent core of the grammes per square metre belonging to the absorbing polymeric in the region of above-mentioned main absorption region in above-mentioned lower floor absorbent core ²above, preferred large 20g/m ²above.

＜24＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 23 >, wherein, the water absorption of the above-mentioned absorbing polymeric comprised in above-mentioned absorber is more than 10g/g below 50g/g, is preferably more than 15g/g below 30g/g.

＜25＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 24 >, wherein, it is more than 10g/g below 50g/g that the 2.0kPa of above-mentioned absorbing polymeric adds pressure absorbtivity, is preferably more than 15g/g below 30g/g.

＜26＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 25 >, wherein, it is more than 5ml/min below 150ml/min that the 2.0kPa of above-mentioned absorbing polymeric adds pressure penetration by liquid speed, is preferably more than 10ml/min below 120ml/min.

＜27＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 26 >, wherein, the infiltration rate measured according to DW method of above-mentioned absorbing polymeric be 10ml/ (g10 divides) above 100ml/ (g10 divides) below, be preferably 20ml/ (g10 divides) above 70ml/ (g10 divides) below.

＜28＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 27 >, wherein, the infiltration rate measured according to DW method of above-mentioned absorbing polymeric be 3ml/ (g1 divides) above 30ml/ (g1 divides) below, be preferably 5ml/ (g1 divides) above 20ml/ (g1 divides) below.

＜29＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 28 >, wherein, above-mentioned absorbing polymeric can absorb and keep the liquid of more than 20 times of own wt and can gelation, to be its mean diameter be more than 10 μm less than 1000 μm, be preferably the granular material of more than 100 μm less than 800 μm, the shape of this granule is any one in spherical, block, botryoidalis, bag-shaped various shape.

＜30＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 29 >, wherein, form slower than the penetration by liquid time of above-mentioned upper strata absorber more than 5 seconds of the penetration by liquid time of the coating member of above-mentioned lower floor absorber, preferably slow more than 8 seconds.

＜31＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 30 >, wherein, the coating member forming above-mentioned lower floor absorber is hydrophilic sheet, as this hydrophilic sheet, use the cored sheet material comprising water penetration thin paper (cotton paper), water penetration non-woven fabrics.

＜32＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 31 >, wherein, the upper strata absorbent core forming above-mentioned upper strata absorber and the lower floor's absorbent core forming above-mentioned lower floor absorber are rectangular shapes, the length of the longitudinal direction of this upper strata absorbent core is shorter than the length of the longitudinal direction of this lower floor's absorbent core, and the length of the width of this upper strata absorbent core is shorter than the length of the width of this lower floor's absorbent core.。

＜33＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 31 >, wherein, the upper strata absorbent core forming above-mentioned upper strata absorber is rectangular shape, the lower floor's absorbent core forming above-mentioned lower floor absorber is the shape attenuated in crotch, the length of the longitudinal direction of this upper strata absorbent core is shorter than the length of the longitudinal direction of this lower floor's absorbent core, and the length of the width of this upper strata absorbent core is equal with the length of the width of this lower floor's absorbent core in crotch.

＜34＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 33 >, wherein, as above-mentioned face sheet, use hydrophilic and the non-woven fabrics of liquid permeability, as above-mentioned back-sheet, use liquid impermeability or the resin molding of water-repellancy or the duplexer of this resin molding and non-woven fabrics.

＜35＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 34 >, it back-sheet of non-skin opposite face side comprising absorber and be configured in this absorber, there is the longitudinal direction corresponding to the fore-and-aft direction of wearer and the transverse direction orthogonal with this longitudinal direction, there is in this longitudinal direction the veutro portion of the veutro being configured in wearer when wearing, being configured in the crotch of crotch part and being configured in the drosal part of dorsal part, in this absorbent commodity

Above-mentioned back-sheet has the lit-par-lit structure of poisture-penetrability sheet material and non-woven fabrics, this back-sheet in above-mentioned crotch and between above-mentioned absorber, be configured with by with the contact of moisture or body fluid and the indicator of variable color, color before and after the variable color of this indicator is different from the true qualities of this poisture-penetrability sheet material and this non-woven fabrics respectively

Indicator corresponding region overlapping with above-mentioned indicator on the thickness direction of above-mentioned absorbent commodity in above-mentioned poisture-penetrability sheet material, the design element being mutually homochromy or similar color to the color after the variable color of this indicator is printed there is multiple modes in the region of the square square shape of 1cm, this design element multiple is not implemented surrounding without Printing Department of printing separately

In multiple above-mentioned design element in above-mentioned indicator corresponding region any 1 is set to particular design element, 1 design element being present in the position nearest apart from this particular design element is set to closest to design element, and draw one by this particular design element and this imaginary line closest to design element center separately time, in this imaginary line with in the length L1 of the lap of this particular design element and this imaginary line with this length L2 closest to the lap of design element, respectively with in this imaginary line with identical with the length L3 of the above-mentioned lap without Printing Department that this clips closest to design element by this particular design element, or it is longer than this length L3.

＜36＞

As the absorbent commodity that above-mentioned < 35 > records, wherein, the discrete shape ground of above-mentioned design element is with regular pattern printing.

＜37＞

As the absorbent commodity that above-mentioned < 35 > or < 36 > records, wherein, comprise the above-mentioned printed design without Printing Department of multiple above-mentioned design element and this design element of encirclement, be applied in the whole region of above-mentioned poisture-penetrability sheet material.

＜38＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 37 >, wherein, above-mentioned poisture-penetrability sheet material in above-mentioned veutro portion, above-mentioned crotch and above-mentioned drosal part configuration, compared with this crotch, this veutro portion is more with the quantity of the per unit area of the above-mentioned design element in this drosal part.

＜39＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 38 >, wherein, above-mentioned absorber comprises absorbent core and the difference skin opposite face of this absorbent core coated and the cored sheet material of non-skin opposite face, the cored sheet material of this skin opposite face side is hydrophilic non-woven fabrics, and the cored sheet material of this non-skin opposite face side is hydrophobic non-woven fabrics.

＜40＞

As the absorbent commodity that above-mentioned < 39 > records, wherein, above-mentioned cored sheet material comprises: the first cored sheet material, the skin opposite face of its coated above-mentioned absorbent core; With the second cored sheet material, the non-skin opposite face of its this absorbent core coated and be rolled up to the lateral margin along the longitudinal of this skin opposite face,

Engaged by heat molten type bonding agent between above-mentioned absorbent core with above-mentioned cored sheet material.

＜41＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 40 >, wherein, above-mentioned absorbent commodity is flat type disposable diaper.

＜42＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 41 >, wherein, in above-mentioned absorbent commodity, the both side edges along the longitudinal of above-mentioned crotch bends to inside arc-shaped, when overlooking, there is the hourglass-shaped shape of longitudinal central part shrinking to the inside.

＜43＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 42 >, wherein, in each of the waist extended at fore-and-aft direction at the front and back ora terminalis of the longitudinal direction from above-mentioned absorber, waist elastic members be fixed on elongation state formed this waist two sheet materials between

From the left and right lateral margin along the longitudinal of above-mentioned absorber the leg of horizontal expansion each in, leg elastic members be fixed on elongation state formed this leg two sheet materials between,

Stereo enclosure is respectively arranged with in the left and right sides along the longitudinal of the face sheet side of above-mentioned absorbent commodity, stereo enclosure elastomeric element is fixed on the free end of this stereo enclosure with elongation state, when wearing this absorbent commodity, form three-dimensional gauffer by the contraction of this stereo enclosure elastomeric element.

＜44＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 43 >, wherein, the edge, both sides along the longitudinal of above-mentioned drosal part is provided with a pair pull stap, the set portion formed by the sunny side parts of mechanicalness face securing member is installed at this pull stap

The non-skin opposite face in above-mentioned veutro portion be formed by the back parts of mechanicalness face securing member formed by set region, this is formed by this back part bonding being fixed on the non-skin opposite face of above-mentioned back-sheet by joint elements by set region, is detachably bonded to the above-mentioned set portion of above-mentioned pull stap.

＜45＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 44 >, wherein, the true qualities of above-mentioned poisture-penetrability sheet material and above-mentioned non-woven fabrics are white, color before the variable color of above-mentioned indicator and the color after variable color all can be seen through above-mentioned back-sheet, can see from the outside of above-mentioned absorbent commodity.

＜46＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 45 >, wherein, above-mentioned indicator (before moisture or bioresorbable) before variable color is yellow, be blue after variable color, the color before and after the variable color of this indicator has the relation of complementary color each other.

＜47＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 46 >, wherein, at the central part of the transverse direction of above-mentioned absorbent commodity to be provided with 1 above-mentioned indicator in the linearity shape of longitudinal extension, above-mentioned indicator is formed in the total length of the longitudinal direction of above-mentioned crotch, and extend to above-mentioned veutro portion and the above-mentioned drosal part part near this crotch separately

The length of the longitudinal direction of above-mentioned indicator is 100 ~ 400mm, and horizontal length is 1 ~ 10mm.

＜48＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 47 >, wherein, above-mentioned indicator comprises hydrophilic compositions, the cementability material that this hydrophilic compositions comprises the electrochromic substance by visually changing with contact with moisture and plays function as bonding agent, above-mentioned indicator informs to except the function of indicator parts of observer except the excretion situation had as the body fluid by wearer, also there is the function as the joint elements will engaged between above-mentioned back-sheet with above-mentioned absorber.

＜49＞

As the absorbent commodity that above-mentioned < 48 > records, wherein, above-mentioned electrochromic substance is pH indicator, this pH indicator with the contact of urine before and after color change, and the variable color when pH value is 3 ~ 7.

＜50＞

As the absorbent commodity that above-mentioned < 49 > records, wherein, above-mentioned pH indicator is the indicator of more than a kind selected from the group be made up of bromophenol blue, methyl orange, alizarin S, bromocresol green, C.I. 13020., bromocresol purple and "diazoresorcinol".

＜51＞

The absorbent commodity recorded any one of above-mentioned < 48 > to < 50 >, wherein, above-mentioned cementability material be with the hydrophilic polymer playing function before contact with moisture as the bonding agent will engaged between above-mentioned back-sheet with above-mentioned absorber, this hydrophilic polymer is the polymer of more than a kind that selects from the group be made up of Polyethylene Glycol, polypropylene glycol, polyvinyl alcohol, polyamide and Kollidone 90F.

＜52＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 51 >, wherein, multiple above-mentioned design element is formed as overlooking into point-like (circle) respectively, discrete shape ground is printed in above-mentioned poisture-penetrability sheet material with regular pattern, the size of this design element multiple is even

Comprise the above-mentioned printed design without Printing Department of multiple above-mentioned design element and this design element of encirclement, be applied in the whole region of the non-skin opposite face of above-mentioned poisture-penetrability sheet material,

Part in addition in above-mentioned indicator corresponding region and above-mentioned poisture-penetrability sheet material, the printed patterns (above-mentioned printed design) of above-mentioned design element is identical.

＜53＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 52 >, wherein, the color be printed in before the color of multiple above-mentioned design element of above-mentioned poisture-penetrability sheet material and the variable color of above-mentioned indicator has the relation of complementary color each other.

＜54＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 53 >, wherein, the color before and after the variable color of above-mentioned indicator has the relation of complementary color each other.

＜55＞

As the absorbent commodity that above-mentioned < 53 > records, wherein, the multiple above-mentioned design element being printed in above-mentioned poisture-penetrability sheet material is respectively blue or its similar color, and the color before the variable color of above-mentioned indicator is yellow.

＜56＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 55 >, wherein, the difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color after the variable color of above-mentioned indicator and the color of above-mentioned design element is 0 ° ~ 30 °.

＜57＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 56 >, wherein, diameter L1, the L2 overlooked as the above-mentioned design element of point-like (circle) is preferably more than 0.3mm below 5mm, be more preferably below 4mm

More than 0.2mm below 4.5mm is preferably with the above-mentioned length L3 overlapping without Printing Department in above-mentioned imaginary line,

When above-mentioned diameter L1, L2 are than above-mentioned length L3 long (L3 < L1, L2), both ratios (L3/L1 or L2) are 0.2 ~ 0.9.

＜58＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 57 >, wherein, the quantity (quantity (printing density) of the per unit area of above-mentioned design element) being present in the above-mentioned design element in the region of the square square shape of 1cm is more than 2 less than 100.

＜59＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 58 >, wherein, the ratio (quantity of the per unit area of the design element in the quantity/crotch of the per unit area of the design element in veutro portion or drosal part) of above-mentioned veutro portion or above-mentioned drosal part and the quantity of the per unit area of the above-mentioned design element of above-mentioned crotch is 1.1 ~ 2.5.

＜60＞

The absorbent commodity recorded any one of above-mentioned < 35 > to < 59 >, wherein, the part being positioned at the lateral outer side of above-mentioned indicator in the side edge part along the longitudinal of above-mentioned absorbent commodity, is printed with and the labelling of the color before the variable color of this indicator for mutually homochromy or similar color in the mode can seen from the outside of this absorbent commodity.

＜61＞

As the absorbent commodity that above-mentioned < 60 > records, wherein, the difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color before the variable color of above-mentioned indicator and the color of above-mentioned labelling is 0 ° ~ 30 °.

＜62＞

The absorbent commodity recorded any one of above-mentioned < 1 > to < 61 >, wherein, above-mentioned absorbent commodity is disposable diaper.

＜63＞

As the absorbent commodity that above-mentioned < 62 > records, wherein, above-mentioned disposable diaper is flat type disposable diaper, has leg creases and three-dimensional gauffer.

Industrial utilizability

According to the absorbent commodity of the present invention's (the first invention), indicator is variable color exactly easily, and the accuracy changing period promotes.Improve the accuracy in replacing period like this, therefore according to the absorbent commodity of the present invention's (the first invention), can not miss replacing period, the body fluid such as to urinate not easily spills from crotch.

According to the present invention (the second invention), provide a kind of outward appearance good and the easy absorbent commodity picking out the visual change of indicator from outside.

Claims (63)

1. an absorbent commodity, it has the absorbent main body of lengthwise, and the absorbent main body of this lengthwise comprises: the face sheet being configured in skin opposite face side; Be configured in the back-sheet of non-skin opposite face side; And the absorber be configured between these two sheet materials, and the absorbent main body of this lengthwise is divided into veutro portion, drosal part and crotch, in this absorbent main body, between this back-sheet and this absorber, longitudinally be configured with the indicator the area of application being coated with and being notified the indicator of excretion situation by the change of color, the feature of this absorbent commodity is:

Described absorber comprises absorbing polymeric and cellulose fibre,

Described absorber comprises: from described veutro portion until lower floor's absorber of described drosal part; Be configured on the skin opposite face of this lower floor's absorber from described veutro portion until the upper strata absorber of described crotch, when overlooking described absorber, this absorber is divided into: the main absorption region of this upper strata absorber and this lower floor's absorber overlap; With the secondary absorption region beyond this main absorption region,

The grammes per square metre belonging to the described absorbing polymeric in the region of described main absorption region in described lower floor absorber is greater than the grammes per square metre of the described absorbing polymeric in the region belonging to described absorption region,

The grammes per square metre of the described absorbing polymeric of described upper strata absorber is less than the grammes per square metre of the described absorbing polymeric of described lower floor absorber, or described upper strata absorber does not comprise described absorbing polymeric,

When overlooking described absorbent commodity, described indicator the area of application is configured in described main absorption region, and the end of the drosal part side of the longitudinal direction of this indicator the area of application is configured near the end of drosal part side of the longitudinal direction of this main absorption region.

2. absorbent commodity as claimed in claim 1, is characterized in that:

The end of the abdomen lateral side of the longitudinal direction of described indicator the area of application is configured near the end of the abdomen lateral side of the longitudinal direction of described main absorption region.

3. absorbent commodity as claimed in claim 1 or 2, is characterized in that:

The end of the drosal part side of the longitudinal direction of described indicator the area of application, with the ora terminalis of the end of the drosal part side of the longitudinal direction of described main absorption region for benchmark, is positioned at the scope of about 1/10th of the length of the longitudinal direction of this main absorption region.

4. the absorbent commodity according to any one of claims 1 to 3, is characterized in that:

The end of the abdomen lateral side of the longitudinal direction of described indicator the area of application, with the ora terminalis of the end of the abdomen lateral side of the longitudinal direction of described main absorption region for benchmark, is positioned at the scope of about 1/10th of the length of the longitudinal direction of this main absorption region.

5. the absorbent commodity according to any one of Claims 1 to 4, is characterized in that:

Along the position of the centrage at longitudinal extension in described indicator the area of application, intermarginally in the front and back end of the longitudinal direction of described upper strata absorber be configured with 1 indicator line, between each of both side edges in the both sides along the longitudinal of 1 this indicator line and this upper strata absorber, intermarginally in the front and back end of the longitudinal direction of this upper strata absorber to be configured with at 2 indicator lines extending of longitudinal direction and this centerline parallel ground.

6. the absorbent commodity according to any one of Claims 1 to 5, is characterized in that:

Described indicator the area of application is in the intermarginal configuration in front and back end of the longitudinal direction of described upper strata absorber, the end of the drosal part side of the longitudinal direction of this indicator the area of application is configured to the position consistency of the end of the drosal part side of the longitudinal direction of main absorption region with this, and the end of the abdomen lateral side of the longitudinal direction of this indicator the area of application is configured to the position consistency of the end of the abdomen lateral side of the longitudinal direction of main absorption region with this.

7. the absorbent commodity according to any one of claim 1 ~ 6, is characterized in that:

The cellulose fibre of described upper strata absorber is the cellulose fibre after being cross-linked.

8. the absorbent commodity according to any one of claim 1 ~ 7, is characterized in that:

The hydrophilic sublevel sheet material of work done during compression lower than described upper strata absorber (not easily being compressed) is configured with between described absorber and described face sheet.

9. absorbent commodity as claimed in claim 8, is characterized in that:

Described sublevel sheet material is rectangular shape when overlooking, configuration be fixed on the skin opposite face of described upper strata absorber of described absorber, and only from veutro portion until crotch be configured, be not configured in drosal part.

10. absorbent commodity as claimed in claim 8 or 9, is characterized in that:

The grammes per square metre of described sublevel sheet material is 10g/m ²above 100g/m ²below.

11. absorbent commodities according to any one of claim 8 ~ 10, is characterized in that:

Described sublevel sheet material is the sheet material based on hydrophilic fibre, and the sheet material of to be the content of this hydrophilic fibre be more than 90 quality %, this sheet material is any one in paper, non-woven fabrics, screen cloth.

12. absorbent commodities according to any one of claim 8 ~ 11, is characterized in that:

The work done during compression of described sublevel sheet material is 50gcm/cm ²above 500gcm/cm ²below, 100gcm/cm is preferably ²above 400gcm/cm ²below.

13. absorbent commodities according to any one of claim 1 ~ 12, is characterized in that:

Described lower floor absorber passes through to be formed by coating member coated lower floor absorbent core,

The liquid permeability of described coating member is lower than the liquid permeability of described upper strata absorber.

14. absorbent commodities according to any one of claim 1 ~ 13, is characterized in that:

When overlooking described absorbent commodity, described indicator the area of application, near the front and back end longitudinally arriving described upper strata absorber, is applied to the both sides of described upper strata absorber in the part of horizontal at least the area of application.

15. absorbent commodities as claimed in claim 14, is characterized in that:

In described indicator the area of application, circular indicator in longitudinal left and right alternately and coated at spaced intervals, be formed in the group of the indicator of longitudinal extension, in this indicator the area of application, the position consistency of the lateral margin of the position of the side of the indicator of the circle of width side and a sidepiece along the longitudinal of described upper strata absorber, the position consistency of the lateral margin of the position of the opposite side of the indicator of the circle of width opposite side and the other side along the longitudinal of this upper strata absorber, the position consistency of the ora terminalis of the most position foremost of indicator of circle of backrest lateral side and the end of the drosal part side of the longitudinal direction of this upper strata absorber, lean on most the position consistency of the ora terminalis of the position bottom of indicator of circle of abdomen lateral side and the end of the abdomen lateral side of the longitudinal direction of this upper strata absorber.

16. absorbent commodities as claimed in claim 14, is characterized in that:

In described indicator the area of application, be configured with the indicator with 2 lines in cornerwise position of described upper strata absorber, described indicator the area of application is the region of encirclement 2 these indicators.

17. absorbent commodities as claimed in claim 14, is characterized in that:

In described indicator the area of application, along the position of the both side edges of the both sides longitudinally of described upper strata absorber and the position of the centrage at longitudinal extension of this upper strata absorber, be configured with 3 indicator lines at longitudinal extension, the scope of surrounding 3 these indicator lines is described indicator the area of application, in this indicator the area of application, the position consistency of the lateral margin of the position of the indicator line of side and a sidepiece along the longitudinal of this upper strata absorber, the position consistency of the lateral margin of the position of the indicator line of opposite side and the other side along the longitudinal of upper strata absorber, and, article 3, in indicator line, the position consistency of the ora terminalis of the end of the most position of front end of backrest lateral side and the drosal part side of the longitudinal direction of this upper strata absorber, lean on most the position consistency of the ora terminalis of the end of the position of lower end of abdomen lateral side and the abdomen lateral side of the longitudinal direction of this upper strata absorber.

18. absorbent commodities according to any one of claim 1 ~ 17, is characterized in that:

Described upper strata absorber is only formed by upper strata absorbent core,

The grammes per square metre of described upper strata absorbent core is 50g/m ²above 500g/m ²below.

19. absorbent commodities according to any one of claim 1 ~ 18, is characterized in that:

Described lower floor absorber uses 1 coating member, to turn back the both sides of this coating member, formed at overlapping mode this lower floor's absorbent core coated of the non-skin opposite face side (back-sheet side) of lower floor's absorbent core each other to make the side edge part of this coating member.

20. absorbent commodities as claimed in claim 19, is characterized in that:

The grammes per square metre of described lower floor absorbent core is 100g/m ²above 1000g/m ²below, the grammes per square metre of described coating member is 3g/m ²above 20g/m ²below.

21. absorbent commodities as described in claim 19 or 20, is characterized in that:

The grammes per square metre belonging to the described absorbing polymeric in the region of described main absorption region in described lower floor absorbent core is 50g/m ²above 500g/m ²below, 100g/m is preferably ²above 400g/m ²below, the grammes per square metre belonging to the described cellulose fibre in the region of this main absorption region in this lower floor's absorbent core is 0g/m ²above 300g/m ²below, 0g/m is preferably ²above 200g/m ²below.

22. absorbent commodities according to any one of claim 19 ~ 21, is characterized in that:

The grammes per square metre belonging to the described absorbing polymeric in the region of described absorption region in described lower floor absorbent core is 20g/m ²above 400g/m ²below, 50g/m is preferably ²above 300g/m ²below, the grammes per square metre belonging to the described cellulose fibre in the region of this absorption region in this lower floor's absorbent core is 0g/m ²above 250g/m ²below, 0g/m is preferably ²above 200g/m ²below.

23. absorbent commodities according to any one of claim 19 ~ 22, is characterized in that:

The grammes per square metre belonging to the absorbing polymeric in the region of described main absorption region in described lower floor absorbent core 10g/m larger than the grammes per square metre belonging to the absorbing polymeric in the region of described absorption region in this lower floor's absorbent core ²above, preferred large 20g/m ²above.

24. absorbent commodities according to any one of claim 1 ~ 23, is characterized in that:

The water absorption of the described absorbing polymeric comprised in described absorber is more than 10g/g below 50g/g, is preferably more than 15g/g below 30g/g.

25. absorbent commodities according to any one of claim 1 ~ 24, is characterized in that:

It is more than 10g/g below 50g/g that the 2.0kPa of described absorbing polymeric adds pressure absorbtivity, is preferably more than 15g/g below 30g/g.

26. absorbent commodities according to any one of claim 1 ~ 25, is characterized in that:

It is more than 5ml/min below 150ml/min that the 2.0kPa of described absorbing polymeric adds pressure penetration by liquid speed, is preferably more than 10ml/min below 120ml/min.

27. absorbent commodities according to any one of claim 1 ~ 26, is characterized in that:

The infiltration rate measured according to DW method of described absorbing polymeric be 10ml/ (g10 divides) above 100ml/ (g10 divides) below, be preferably 20ml/ (g10 divides) above 70ml/ (g10 divides) below.

28. absorbent commodities according to any one of claim 1 ~ 27, is characterized in that:

The infiltration rate measured according to DW method of described absorbing polymeric be 3ml/ (g1 divides) above 30ml/ (g1 divides) below, be preferably 5ml/ (g1 divides) above 20ml/ (g1 divides) below.

29. absorbent commodities according to any one of claim 1 ~ 28, is characterized in that:

Described absorbing polymeric can absorb and keep the liquid of more than 20 times of own wt and can gelation, to be its mean diameter be more than 10 μm less than 1000 μm, be preferably the granular material of more than 100 μm less than 800 μm, the shape of this granule is any one in spherical, block, botryoidalis, bag-shaped various shape.

30. absorbent commodities according to any one of claim 1 ~ 29, is characterized in that:

Form slower than the penetration by liquid time of described upper strata absorber more than 5 seconds of the penetration by liquid time of the coating member of described lower floor absorber, preferably slow more than 8 seconds.

31. absorbent commodities according to any one of claims 1 to 30, is characterized in that:

The coating member forming described lower floor absorber is hydrophilic sheet, as this hydrophilic sheet, uses the cored sheet material comprising water penetration thin paper (cotton paper), water penetration non-woven fabrics.

32. absorbent commodities according to any one of claims 1 to 31, is characterized in that:

The upper strata absorbent core forming described upper strata absorber and the lower floor's absorbent core forming described lower floor absorber are rectangular shapes, the length of the longitudinal direction of this upper strata absorbent core is shorter than the length of the longitudinal direction of this lower floor's absorbent core, and the length of the width of this upper strata absorbent core is shorter than the length of the width of this lower floor's absorbent core.

33. absorbent commodities according to any one of claims 1 to 31, is characterized in that:

The upper strata absorbent core forming described upper strata absorber is rectangular shape, the lower floor's absorbent core forming described lower floor absorber is the shape attenuated in crotch, the length of the longitudinal direction of this upper strata absorbent core is shorter than the length of the longitudinal direction of this lower floor's absorbent core, and the length of the width of this upper strata absorbent core is equal with the length of the width of this lower floor's absorbent core in crotch.

34. absorbent commodities according to any one of claim of right1~33, is characterized in that:

As described face sheet, use hydrophilic and the non-woven fabrics of liquid permeability, as described back-sheet, use liquid impermeability or the resin molding of water-repellancy or the duplexer of this resin molding and non-woven fabrics.

35. absorbent commodities according to any one of claims 1 to 34, is characterized in that:

This absorbent commodity comprises absorber and is configured in the back-sheet of non-skin opposite face side of this absorber, there is the longitudinal direction corresponding to the fore-and-aft direction of wearer and the transverse direction orthogonal with this longitudinal direction, there is in this longitudinal direction the veutro portion of the veutro being configured in wearer when wearing, being configured in the crotch of crotch part and being configured in the drosal part of dorsal part, in this absorbent commodity

Described back-sheet has the lit-par-lit structure of poisture-penetrability sheet material and non-woven fabrics, this back-sheet in described crotch and between described absorber, be configured with by with the contact of moisture or body fluid and the indicator of variable color, color before and after the variable color of this indicator is different from the true qualities of this poisture-penetrability sheet material and this non-woven fabrics respectively

Indicator corresponding region overlapping with described indicator on the thickness direction of described absorbent commodity in described poisture-penetrability sheet material, the design element being mutually homochromy or similar color to the color after the variable color of this indicator is printed there is multiple modes in the region of the square square shape of 1cm, this design element multiple is not implemented surrounding without Printing Department of printing separately

In multiple described design element in described indicator corresponding region any 1 is set to particular design element, 1 design element being present in the position nearest apart from this particular design element is set to closest to design element, and draw one by this particular design element and this imaginary line closest to design element center separately time, in this imaginary line with in the length L1 of the lap of this particular design element and this imaginary line with this length L2 closest to the lap of design element, respectively with in this imaginary line with identical with the length L3 of the described lap without Printing Department that this clips closest to design element by this particular design element, or it is longer than this length L3.

36. absorbent commodities as claimed in claim 35, is characterized in that:

The discrete shape ground of described design element is with regular pattern printing.

37. absorbent commodities as described in claim 35 or 36, is characterized in that:

Comprise the described printed design without Printing Department of multiple described design element and this design element of encirclement, be applied in the whole region of described poisture-penetrability sheet material.

38. absorbent commodities according to any one of claim 35 ~ 37, is characterized in that:

Described poisture-penetrability sheet material in described veutro portion, described crotch and the configuration of described drosal part, compared with this crotch, the quantity of the per unit area of the described design element in this veutro portion and this drosal part is more.

39. absorbent commodities according to any one of claim 35 ~ 38, is characterized in that:

Described absorber comprises absorbent core and the difference skin opposite face of this absorbent core coated and the cored sheet material of non-skin opposite face, the cored sheet material of this skin opposite face side is hydrophilic non-woven fabrics, and the cored sheet material of this non-skin opposite face side is hydrophobic non-woven fabrics.

40. absorbent commodities as claimed in claim 39, is characterized in that:

Described cored sheet material comprises: the first cored sheet material, the skin opposite face of its coated described absorbent core; With the second cored sheet material, the non-skin opposite face of its this absorbent core coated and be rolled up to the lateral margin along the longitudinal of this skin opposite face,

Engaged by heat molten type bonding agent between described absorbent core with described cored sheet material.

41. absorbent commodities according to any one of claim 35 ~ 40, is characterized in that:

Described absorbent commodity is flat type disposable diaper.

42. absorbent commodities according to any one of claim 35 ~ 41, is characterized in that:

In described absorbent commodity, the both side edges along the longitudinal of described crotch bends to inside arc-shaped, when overlooking, has the hourglass-shaped shape of longitudinal central part shrinking to the inside.

43. absorbent commodities according to any one of claim 35 ~ 42, is characterized in that:

In each of the waist extended at fore-and-aft direction at the front and back ora terminalis of the longitudinal direction from described absorber, waist elastic members be fixed on elongation state formed this waist two sheet materials between,

From the left and right lateral margin along the longitudinal of described absorber the leg of horizontal expansion each in, leg elastic members be fixed on elongation state formed this leg two sheet materials between,

Stereo enclosure is respectively arranged with in the left and right sides along the longitudinal of the face sheet side of described absorbent commodity, stereo enclosure elastomeric element is fixed on the free end of this stereo enclosure with elongation state, when wearing this absorbent commodity, form three-dimensional gauffer by the contraction of this stereo enclosure elastomeric element.

44. absorbent commodities according to any one of claim 35 ~ 43, is characterized in that:

The edge, both sides along the longitudinal of described drosal part is provided with a pair pull stap, the set portion formed by the sunny side parts of mechanicalness face securing member is installed at this pull stap,

The non-skin opposite face in described veutro portion be formed by the back parts of mechanicalness face securing member formed by set region, this is formed by this back part bonding being fixed on the non-skin opposite face of described back-sheet by joint elements by set region, is detachably bonded to the described set portion of described pull stap.

45. absorbent commodities according to any one of claim 35 ~ 44, is characterized in that:

The true qualities of described poisture-penetrability sheet material and described non-woven fabrics are white, and the color before the variable color of described indicator and the color after variable color all can be seen through described back-sheet, can see from the outside of described absorbent commodity.

46. absorbent commodities according to any one of claim 35 ~ 45, is characterized in that:

Described indicator (before moisture or bioresorbable) before variable color is yellow, and be blue after variable color, the color before and after the variable color of this indicator has the relation of complementary color each other.

47. absorbent commodities according to any one of claim 35 ~ 46, is characterized in that:

At the central part of the transverse direction of described absorbent commodity to be provided with 1 described indicator in the linearity shape of longitudinal extension, described indicator is formed in the total length of the longitudinal direction of described crotch, and extend to described veutro portion and the described drosal part part near this crotch separately

The length of the longitudinal direction of described indicator is 100 ~ 400mm, and horizontal length is 1 ~ 10mm.

48. absorbent commodities according to any one of claim 35 ~ 47, is characterized in that:

Described indicator comprises hydrophilic compositions, the cementability material that this hydrophilic compositions comprises the electrochromic substance by visually changing with contact with moisture and plays function as bonding agent, described indicator informs to except the function of indicator parts of observer except the excretion situation had as the body fluid by wearer, also has the function as the joint elements will engaged between described back-sheet with described absorber.

49. absorbent commodities as claimed in claim 48, is characterized in that:

Described electrochromic substance is pH indicator, this pH indicator with the contact of urine before and after color change, and the variable color when pH value is 3 ~ 7.

50. absorbent commodities as claimed in claim 49, is characterized in that:

Described pH indicator is the indicator of more than a kind selected from the group be made up of bromophenol blue, methyl orange, alizarin S, bromocresol green, C.I. 13020., bromocresol purple and "diazoresorcinol".

51. absorbent commodities according to any one of claim 48 ~ 50, is characterized in that:

Described cementability material be with the hydrophilic polymer playing function before contact with moisture as the bonding agent will engaged between described back-sheet with described absorber, this hydrophilic polymer is the polymer of more than a kind that selects from the group be made up of Polyethylene Glycol, polypropylene glycol, polyvinyl alcohol, polyamide and Kollidone 90F.

52. absorbent commodities according to any one of claim 35 ~ 51, is characterized in that:

Multiple described design element is formed as overlooking into point-like (circle) respectively, and discrete shape ground is printed in described poisture-penetrability sheet material with regular pattern, and the size of this design element multiple is even,

Comprise the described printed design without Printing Department of multiple described design element and this design element of encirclement, be applied in the whole region of the non-skin opposite face of described poisture-penetrability sheet material,

Part in addition in described indicator corresponding region and described poisture-penetrability sheet material, the printed patterns (described printed design) of described design element is identical.

53. absorbent commodities according to any one of claim 35 ~ 52, is characterized in that:

The color be printed in before the color of the multiple described design element of described poisture-penetrability sheet material and the variable color of described indicator has the relation of complementary color each other.

54. absorbent commodities according to any one of claim 35 ~ 53, is characterized in that:

Color before and after the variable color of described indicator has the relation of complementary color each other.

55. absorbent commodities as claimed in claim 53, is characterized in that:

The multiple described design element being printed in described poisture-penetrability sheet material is respectively blue or its similar color, and the color before the variable color of described indicator is yellow.

56. absorbent commodities according to any one of claim 35 ~ 55, is characterized in that:

The difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color of the color after the variable color of described indicator and described design element is 0 ° ~ 30 °.

57. absorbent commodities according to any one of claim 35 ~ 56, is characterized in that:

Diameter L1, L2 of being considered as the described design element of point-like (circle) are preferably more than 0.3mm below 5mm, are more preferably below 4mm,

More than 0.2mm below 4.5mm is preferably with the described length L3 overlapping without Printing Department in described imaginary line,

When described diameter L1, L2 are than described length L3 long (L3 < L1, L2), both ratios (L3/L1 or L3/L2) are 0.2 ~ 0.9.

58. absorbent commodities according to any one of claim 35 ~ 57, is characterized in that:

The quantity (quantity (printing density) of the per unit area of described design element) being present in the described design element in the region of the square square shape of 1cm is more than 2 less than 100.

59. absorbent commodities according to any one of claim 35 ~ 58, is characterized in that:

The ratio of described veutro portion or described drosal part and the quantity of the per unit area of the described design element of described crotch (quantity of the per unit area of the design element in the quantity/crotch of the per unit area of the design element in veutro portion or drosal part) is 1.1 ~ 2.5.

60. absorbent commodities according to any one of claim 35 ~ 59, is characterized in that:

The part being positioned at the lateral outer side of described indicator in the side edge part along the longitudinal of described absorbent commodity, is printed with and the labelling of the color before the variable color of this indicator for mutually homochromy or similar color in the mode can seen from the outside of this absorbent commodity.

61. absorbent commodities as claimed in claim 60, is characterized in that:

The difference (Δ h) of the form and aspect angle of the h value (directly measuring) of the color of the color before the variable color of described indicator and described labelling is 0 ° ~ 30 °.

62. absorbent commodities according to any one of claim 1 ~ 61, is characterized in that:

Described absorbent commodity is disposable diaper.

63. absorbent commodities as claimed in claim 62, is characterized in that:

Described disposable diaper is flat type disposable diaper, has leg creases and three-dimensional gauffer.