CN109998791A - A kind of sanitary absorbent article - Google Patents
A kind of sanitary absorbent article Download PDFInfo
- Publication number
- CN109998791A CN109998791A CN201910350731.1A CN201910350731A CN109998791A CN 109998791 A CN109998791 A CN 109998791A CN 201910350731 A CN201910350731 A CN 201910350731A CN 109998791 A CN109998791 A CN 109998791A
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- China
- Prior art keywords
- layer
- absorbent article
- foamed material
- absorbed layer
- longitudinal direction
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53717—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53743—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
- A61F13/53752—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers the layer is embedded in the absorbent core
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
- A61F2013/53051—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being only in particular parts or specially arranged
- A61F2013/530547—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being only in particular parts or specially arranged positioned in a separate layer or layers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F2013/53463—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad with a reinforcing structure, e.g. net
Abstract
The invention discloses a kind of sanitary absorbent articles, including surface layer, absorbed layer and the ventilative bottom from top to bottom set gradually, the absorbed layer includes thickness direction osmotic absorption layer and plane longitudinal direction/horizontal proliferation absorbed layer, and the thickness direction osmotic absorption layer is made of foamed material and is located on plane longitudinal direction/horizontal proliferation absorbed layer；Plane longitudinal direction/horizontal proliferation the absorbed layer is disposed adjacent with the thickness direction osmotic absorption layer, and the plane longitudinal direction/horizontal proliferation absorbed layer includes composite absorbent paper, and the composite absorbent paper includes the Time of Fluff Slurry of the web and middle layer positioned at upper and lower surfaces.Since the foamed material in thickness direction osmotic absorption layer has high opening rate, and it is connected with each other between aperture and aperture, therefore in body fluid pervious body fluid thickness direction being capable of rapid osmotic, so that the area that body fluid concentrates on very little is permeated, the remnants on sanitary absorbent article surface are less after infiltration, residual area is also smaller, gives salubrious feeling.
Description
Technical field
It is the present invention relates to absorbent article technical field, in particular to a kind of vertical comprising thickness direction osmotic absorption layer and plane
To the sanitary absorbent article of/horizontal proliferation absorbed layer.
Background technique
As the improvement of people's living standards, sanitary absorbent article, such as sanitary napkin, baby paper diaper, adult diaper
Deng being widely used in women, baby, the middle-aged and the old of the easy urinary incontinence and row due to the features such as its replacement is convenient, sanitation and hygiene
It moves in the groups such as inconvenient patient.
Generally existing absorbent article is usually made of surface layer, absorbent core layer and gas permeation bottom film on the market now.And it absorbs
Sandwich layer mostly adds suitable super absorbent resin by dust-free paper, Time of Fluff Slurry etc. and forms.Body fluid is penetrated by surface layer when in use
Absorbent core layer, body fluid spread and are absorbed the absorption of the super absorbent resin in sandwich layer in absorbent core layer and firmly locks, and prevent weight
It is new to return to surface layer.But traditional dust-free paper and Time of Fluff Slurry, since fibre length is shorter, fibre length is about 10~30mm, because
This is more fluffy, and thickness is larger, and absorbs poor diffusivity after body fluid, so that absorbent article is more thick and heavy, and absorbent article
Utilization rate is not high, be easy to cause when body fluid discharge rate is larger and closes the problem of causing leakage of body fluids since local absorption is full.Meanwhile
Non-woven fabrics, the intensity of Time of Fluff Slurry are lower, after absorbing a large amount of body fluid, it is easy to and there is absorbent core layer fracture, acts phenomena such as sticking together,
And, can be hardened blocking after water suction since the filler that traditional Time of Fluff Slurry or compound core body use all is fibrous matter, to lose
Gas permeability is gone, absorbent article there is also leakage when serious, and absorbent properties decline phenomenon, also wearer can be made uncomfortable.
Summary of the invention
The purpose of the present invention is to provide one kind to absorb comprising thickness direction osmotic absorption layer and plane longitudinal direction/horizontal proliferation
The sanitary absorbent article of layer.
In order to achieve the above objectives, solution of the invention is:
A kind of sanitary absorbent article, including surface layer, absorbed layer and the ventilative bottom from top to bottom set gradually, the absorption
Layer include thickness direction osmotic absorption layer and plane longitudinal direction/horizontal proliferation absorbed layer, the thickness direction osmotic absorption layer be by
Foamed material forms and is located on plane longitudinal direction/horizontal proliferation absorbed layer；Plane longitudinal direction/horizontal proliferation the absorbed layer and institute
It states thickness direction osmotic absorption layer to be disposed adjacent, the plane longitudinal direction/horizontal proliferation absorbed layer includes composite absorbent paper, described multiple
Close the Time of Fluff Slurry that blotting paper includes the web positioned at upper and lower surfaces and middle layer, the percent opening 70% of the foamed material~
99.9%.
The foamed material is aperture flexibel polyurethane foamed material.
The foamed material is the melamine foamed material with stereoscopic three-dimensional grid open-celled structure.
Compressed shape variability of the foamed material under 0.3PSI pressure is 1%~60%.
There is the infundibulate aperture through foamed material on the foamed material.
It include super absorbent resin in the plane longitudinal direction/horizontal proliferation absorbed layer.
The super absorbent resin is super absorbent resin layer, and is located under the composite absorbent paper.
Also there is one or more layers composite absorbent paper under the super absorbent resin layer.
Web in the composite absorbent paper is spun-bonded fibre net or meltblown fiber web.
The composite absorbent paper be by upper and lower two layer web and Time of Fluff Slurry it is superimposed after by heating device fixed network at
Type.
After adopting the above technical scheme, the present invention includes that thickness direction osmotic absorption layer and plane longitudinal direction/horizontal proliferation are inhaled
Layer is received, since the foamed material in thickness direction osmotic absorption layer has high opening rate, and is mutually interconnected between aperture and aperture
Connect, thus in body fluid pervious body fluid thickness direction can rapid osmotic so that the area that body fluid concentrates on very little is seeped
Thoroughly, thus permeate after sanitary absorbent article surface remnants it is less, residual area is also smaller, gives salubrious feeling, thickness
Fiber of the osmotic absorption layer adjacent plane longitudinal direction/horizontal proliferation absorbed layer in direction due to the upper and lower surfaces in composite absorbent paper
Net is spun-bonded fibre net or meltblown fiber web, is distributed between fiber and fiber relatively closely, and it is vertical in plane can to effectively increase body fluid
Flowing to/transverse direction, plays guide functions, the balanced area utilization of sanitary absorbent article.In addition, composite absorbent paper
In Time of Fluff Slurry can quickly absorb body fluid, it is therefore prevented that body fluid hair of side leakage or back leak problem in plane transverse direction/longitudinal diffusion
It is raw.
Detailed description of the invention
Fig. 1 is the sectional view of sanitary absorbent article described in the embodiment of the present invention 1.
Fig. 2 is the sectional view of sanitary absorbent article described in the embodiment of the present invention 2.
Fig. 3 is the sectional view of sanitary absorbent article described in the embodiment of the present invention 3.
Fig. 4 is the sectional view of sanitary absorbent article described in the embodiment of the present invention 4.
Fig. 5 is the sectional view of sanitary absorbent article described in the embodiment of the present invention 5.
Specific embodiment
In order to further explain the technical solution of the present invention, being explained in detail below by specific embodiment the present invention
It states, following middle thickness directions are the Z-direction in Fig. 1-5, and plane is longitudinally the Y direction in Fig. 1-5, and plane is laterally Fig. 1-
X-direction in 5.
Embodiment 1
As shown in Figure 1, present invention discloses a kind of sanitary absorbent article 1, including from top to bottom set gradually surface layer 11,
Absorbed layer 12 and ventilative bottom 13, the absorbed layer 12 include thickness direction osmotic absorption layer 12a and plane longitudinal direction/horizontal proliferation
Absorbed layer 12b, the thickness direction osmotic absorption layer 12a are made of aperture flexibel polyurethane foamed material and indulge positioned at plane
On to/horizontal proliferation absorbed layer 12b, in which: the percent opening of foamed material is 80%, and foamed material is under 0.3PSI pressure
Compression deformation rate is 20%；Plane longitudinal direction/horizontal proliferation absorbed layer the 12b includes composite absorbent paper, the composite absorbent paper
It is disposed adjacent with the thickness direction osmotic absorption layer 12a, the composite absorbent paper includes the web positioned at upper and lower surfaces
The Time of Fluff Slurry 12b2 of 12b1,12b3 and middle layer, by upper and lower two layer web 12b1,12b3 and Time of Fluff Slurry 12b2 it is superimposed after
It is formed by heating device fixed network, in which: web 12b1,12b3 in composite absorbent paper are spun-bonded fibre net or meltblown fibers
Net.
Compression deformation test:
Measuring instrument: YG141D type fabric thickness instrument, counterweight
Testing procedure:
1) the test Foot area for choosing fabric thickness instrument is 2000mm2, pressurize pressure 0PSI, and pressing time 10s will be sent out
Foam material is placed on datum plate in no-station pole canopy and without deformation in the case where and tests its thickness, records being averaged for 10 test datas
Value is recorded as thickness t1 of the foamed material under 0PSI pressure.
2) the test Foot area for choosing fabric thickness instrument is 2000mm2, pressure 0.3PSI (compression weight of pressurizeing
425CN), foamed material is placed on datum plate in no-station pole canopy and without deformation in the case where and tests its thickness by pressing time 10s
Degree, the average value for recording the test data of 10 different locations are recorded as thickness t2 of the foamed material under 0.3PSI pressure.
3) it is calculate by the following formula the compression deformation rate for obtaining foamed material under 0.3PSI pressure.
In formula:
Compression deformation rate of the R-material under 0.3PSI pressure, %
Three-dimensional thickness of the t1-material under 0PSI pressure, mm
Three-dimensional thickness of the t2-material under 0.3PSI pressure, mm
Test result is as follows:
Permeance property test
Measuring instrument: balance, standard dram funnel (DF), standard briquetting Φ 100mm, quality be (1.2 ± 0.002) kg, ruler,
Stopwatch.
Solution: standard Synthesis liquid is tested, referring to GB/T8939-2008 Appendix B, is formulated as follows: a) distilled water or deionization,
860mL；B) sodium chloride: 10.00g, chemistry are pure；C) sodium carbonate: 40.00g, chemistry are pure；D) glycerine (glycerol): 140mL, chemistry
It is pure；E) sodium benzoate: 1.00g, chemistry are pure；F) in right amount, chemistry is pure for color (edible pigment)；G) the fine plain sodium of carboxymethyl: about 5g,
Chemistry is pure；H) standard mediator: 1% (volume ratio).
At (23 ± 1) DEG C, the physical property of standard Synthesis liquid should meet claimed below: a) density: (1.05 ± 0.05)
g/cm3；B) viscosity: (11.9 ± 0.7) s (surveys) c with No. 4 paint cups) surface tension: (36 ± 4) mN/m.
Test sample: sanitary absorbent article of the invention, blank sample use commercial absorbent articles.
Testing procedure:
1, the measurement of time and the amount of bleeding back is penetrated into
Oneself is placed on levels operation table top and knows the Φ 230mm middling speed qualitative chemical analysis filter paper several layers of quality, will be tried
Sample expansion is put on filter paper in nature (vertical bar type sample both ends need to tilt, and make test zone length about 200mm).
The quasi- Synthesis liquid 5ml of mark is taken with graduated cylinder correct amount, is poured into funnel.Funnel under shed should be towards operator, lower mouth
Vertical range of the central point away from specimen surface be 5mm~10mm, then rapidly open funnel section door to maximum, synthesize standard
Liquid flows freely to the surface of sample, and starts simultaneously at timing (solution should not be overflowed from sample two sides when test), record standard
Synthesis liquid is reaching hygienic articles surface to the time t fully penetrated into, when fully penetrating into 5min, injects same amount with funnel again
Standard Synthesis liquid, when 10min, (be without imbibition with top layer's filter paper by the Φ 110mm filter paper several layers of known quality rapidly
Only) be put into specimen surface, while standard briquetting being pressed on filter paper, restart timing, pressurize 1min when standard briquetting is moved
It goes, the quality for the specimen surface filter paper that weighs with scale.
The amount of bleeding back of test sample is indicated with of poor quality before and after specimen surface filter paper test, is calculated as follows:
M=m1-m2
In formula:
The m- amount of bleeding back, unit are gram (g)；
Quality after m1- specimen surface filter paper imbibition, unit are gram (g)；
Quality before m2- specimen surface filter paper imbibition, unit are gram (g).
5 test samples and blank sample are taken to be tested respectively, arithmetic mean of instantaneous value as a result is accurate to as test result
0.1g。
2, remained on surface is tested
As described above, measuring the remaining length and width of specimen surface layer with ruler after 1min after the complete infiltration time to be measured.
Using the arithmetic mean of instantaneous value of 5 samples as final testing result, it is accurate to 1mm.
Test result is as follows:
As can be seen from the above data, the sanitary absorbent article of embodiment 1 is compared with commercial absorbent articles 1,2, when infiltration
Between be not much different, but the amount of bleeding back is smaller, and length and width remained on surface is smaller so that surface body fluid remain size compared with
It is small, it is dry-ness more preferable.
In the present embodiment after adopting the above structure, since the foamed material in thickness direction osmotic absorption layer 12a is aperture
The aperture flexibel polyurethane foamed material that rate is 80%, is connected with each other, therefore in body fluid pervious between open-cell foaming and aperture
Body fluid thickness direction can rapid osmotic, therefore permeate after sanitary absorbent article surface residual volume it is less, residual area
It is smaller, salubrious feeling is given after use, in addition, compression deformation rate of the foamed material under 0.3PSI pressure is 20%, both
It ensure that the flexibility with human contact, also prevent foamed material excessively softness and used so as to cause sanitary absorbent article
Occur seriously collapsing in journey, sanitary absorbent article is easily-deformable and influences the problems such as body fluid is bled back；And with thickness direction osmotic absorption
The adjacent plane longitudinal direction/horizontal proliferation absorbed layer 12b of layer 12a due to the upper and lower surfaces in composite absorbent paper web 12b1,
12b3 is spun-bonded fibre net or meltblown fiber web, is distributed relatively closely between fiber and fiber, can effectively increase body fluid in plane
The flowing of longitudinal direction/transverse direction, plays guide functions, the balanced area utilization of sanitary absorbent article.In addition, composite water absorbing
Time of Fluff Slurry 12b2 in paper can quickly absorb body fluid, it is therefore prevented that body fluid side leakage or back leak in plane transverse direction/longitudinal diffusion are asked
The generation of topic.
Embodiment 2
As shown in Fig. 2, present invention discloses a kind of sanitary absorbent article 2, including from top to bottom set gradually surface layer 21,
Absorbed layer 22 and ventilative bottom 23, the absorbed layer 22 include thickness direction osmotic absorption layer 22a and plane longitudinal direction/horizontal proliferation
Absorbed layer 22b, the thickness direction osmotic absorption layer 22a are by the melamine foaming material with stereoscopic three-dimensional grid open-celled structure
Material forms and is located on plane longitudinal direction/horizontal proliferation absorbed layer 22b, in which: the percent opening of foamed material is 90%, foaming material
Expect that the compression deformation rate under 0.3PSI pressure is 10%；Plane longitudinal direction/horizontal proliferation absorbed layer the 22b includes composite water absorbing
Paper, the composite absorbent paper are disposed adjacent with the thickness direction osmotic absorption layer 22a, and the composite absorbent paper includes to be located at
Web 22b1,22b3 of upper and lower surfaces and the Time of Fluff Slurry 22b2 of middle layer, by upper and lower two layer web 22b1,22b3 and suede
It is formed after hair slurry 22b2 is superimposed by heating device fixed network, in which: web 22b1,22b3 in composite absorbent paper are spunbond
Web or meltblown fiber web.
The amount of bleeding back is carried out by sanitary absorbent article to the present embodiment 2 and commercial absorbent articles, sliding is seeped and remained on surface
Test, test result is as follows shown in table:
As can be seen from the above data, the sanitary absorbent article of embodiment 2 is compared with commercial absorbent articles, time phase is penetrated into
It is poor little, but the amount of bleeding back is smaller, length and width remained on surface is smaller, so that body fluid residual size in surface is smaller, does
It is may just as well more preferable.Since the foamed material in thickness direction osmotic absorption layer 22a is melamine foamed material, percent opening 90%, hair
Bubble open between hole and aperture formation stereoscopic three-dimensional network, and be connected with each other, thus in body fluid pervious body fluid in thickness side
To can rapid osmotic, therefore permeate after sanitary absorbent article surface residual volume it is less, residual area is also smaller, gives after use
People both ensure that and connect with human body in addition, compression deformation rate of the foamed material under 0.3PSI pressure is 10% with salubrious feeling
The flexibility of touching also prevents foamed material excessively softness and occurs seriously collapsing in use so as to cause sanitary absorbent article
It falling into, sanitary absorbent article is easily-deformable and influences the problems such as body fluid is bled back, meanwhile, high percent opening also increases the ventilative of material
Property, while foamed material also has certain elasticity, so that the whole soft-touch of sanitary absorbent article, high resilience.
Embodiment 3
As shown in figure 3, present invention discloses a kind of sanitary absorbent article 3, including from top to bottom set gradually surface layer 31,
Absorbed layer 32 and ventilative bottom 33, the absorbed layer 32 include thickness direction osmotic absorption layer 32a and plane longitudinal direction/horizontal proliferation
Absorbed layer 32b, the thickness direction osmotic absorption layer 32a are by the melamine foamed material with stereoscopic three-dimensional grid open-celled structure
It forms and is located on plane longitudinal direction/horizontal proliferation absorbed layer 32b, in which: the percent opening of foamed material is 95%, foamed material
Compression deformation rate under 0.3PSI pressure is 6%, and on foamed material there is the infundibulate through foamed material to open
Hole A；Plane longitudinal direction/horizontal proliferation absorbed layer the 32b includes composite absorbent paper, the composite absorbent paper and the thickness direction
Osmotic absorption layer 32a is disposed adjacent, and the composite absorbent paper includes web 32b1,32b3 and centre positioned at upper and lower surfaces
The Time of Fluff Slurry 32b2 of layer, it is superimposed rear by heating device fixed network by upper and lower two layer web 32b1,32b3 and Time of Fluff Slurry 32b2
Molding, in which: web 32b1,32b3 in composite absorbent paper are spun-bonded fibre net or meltblown fiber web.
The present invention with the above structure, due on the foamed material of thickness direction osmotic absorption layer 32a have through
The infundibulate aperture A of foamed material so that in use, body fluid when reaching this layer, can more rapid osmotic, and permeate
The residual volume on sanitary absorbent article surface is less afterwards, and residual area is also smaller, and salubrious feeling, while funnel are given after use
Body fluid is along the macropore return sanitary absorbent article surface through foamed material after shape aperture A also effectively prevents osmotic absorption.
Embodiment 4
As shown in figure 4, present invention discloses a kind of sanitary absorbent article 4, including from top to bottom set gradually surface layer 41,
Absorbed layer 42 and ventilative bottom 43, the absorbed layer 42 include thickness direction osmotic absorption layer 42a and plane longitudinal direction/horizontal proliferation
Absorbed layer 42b, the thickness direction osmotic absorption layer 42a are by the melamine foaming material with stereoscopic three-dimensional grid open-celled structure
Material forms and is located on plane longitudinal direction/horizontal proliferation absorbed layer 42b, in which: the percent opening of foamed material is 99%, foaming material
Expect that the compression deformation rate under 0.3PSI pressure is 15%；Plane longitudinal direction/horizontal proliferation absorbed layer the 42b includes composite water absorbing
Paper, the composite absorbent paper are disposed adjacent with the thickness direction osmotic absorption layer 42a, and the composite absorbent paper includes to be located at
Web 42b1,42b3 of upper and lower surfaces and the Time of Fluff Slurry 42b2 of middle layer, by upper and lower two layer web 42b1,42b3 and suede
It is formed after hair slurry 42b2 is superimposed by heating device fixed network, in which: web 42b1,42b3 in composite absorbent paper are spunbond
Web or meltblown fiber web；The absorbed layer 42 is also comprising being located at the super absorbent resin layer 42c under composite absorbent paper.
The present invention with the above structure, due to including also super absorbent resin layer 42c in absorbed layer 42, enable body fluid
It is enough firmly to be locked in super absorbent resin, prevent effect of the body fluid after osmotic absorption due to pressure from returning to hygienic absorption
The surface layer 41 of product causes to bleed back greatly, and tide sense is strong, influences the using effect of sanitary absorbent article.Meanwhile super absorbent resin
It can add in the Time of Fluff Slurry 42b2 in foamed material or composite absorbent paper, can equally play the role of imbibition and protect liquid.
Furthermore since the foamed material in thickness direction osmotic absorption layer 42a is melamine foamed material, percent opening is
99%, stereoscopic three-dimensional network is formed between open-cell foaming and aperture, and be connected with each other, therefore body fluid exists in body fluid pervious
Thickness direction can rapid osmotic, therefore permeate after sanitary absorbent article surface residual volume it is less, residual area is also smaller, when
So, the super absorbent resin layer 42c can be the same or different bilayer of structure, and the super absorbent resin layer 42c can
To be only made of super absorbent resin, can also be made of the material of super absorbent resin and fixed super absorbent resin, simultaneously
The mutual alignment of the super absorbent resin layer 42c and Time of Fluff Slurry 42b2 and number of plies structure can according to need and be adjusted.Position
The super absorbent resin additive amount contained in following super absorbent resin layer 42c is greater than super absorbent resin located above
The additive amount of super absorbent resin, then can more promote body fluid in hygienic absorption system due to the effect of hydrophilic gradient in layer 42c
Product thickness direction is mobile, so that seepage velocity is faster, to prevent the sliding leakage of body fluid.
Embodiment 5
As shown in figure 5, present invention discloses a kind of sanitary absorbent article 5, including from top to bottom set gradually surface layer 51,
Absorbed layer 52 and ventilative bottom 53, the absorbed layer 52 include thickness direction osmotic absorption layer 52a, plane longitudinal direction/horizontal proliferation
Absorbed layer 52b, 52b ' and super absorbent resin layer 52c, the thickness direction osmotic absorption layer 52a, is by with stereoscopic three-dimensional
The melamine foamed material of grid open-celled structure forms and is located on plane longitudinal direction/horizontal proliferation absorbed layer 52b, in which: foaming
The percent opening of material is 95%, and compression deformation rate of the foamed material under 0.3PSI pressure is 6%；The plane is longitudinal/lateral
Diffusion absorption layer 52b includes composite absorbent paper, and the composite absorbent paper is adjacent with the thickness direction osmotic absorption layer 52a to be set
It sets, the composite absorbent paper can be one or more layers, and the composite absorbent paper includes the web positioned at upper and lower surfaces
The Time of Fluff Slurry 52b2 of 52b1,52b3 and middle layer, by upper and lower two layer web 52b1,52b3 and Time of Fluff Slurry 52b2 it is superimposed after
It is formed by heating device fixed network, in which: web 52b1,52b3 in composite absorbent paper 52b are spun-bonded fibre net or melt-blown
Web；The super absorbent resin layer 52c is set to plane longitudinal direction/horizontal proliferation absorbed layer 52b, 52b ' between, the plane
Longitudinal direction/horizontal proliferation absorbed layer 52b ' includes composite absorbent paper, and the composite absorbent paper includes the web positioned at upper and lower surfaces
The Time of Fluff Slurry 52b2 ' of 52b1 ', 52b3 ' and middle layer, by upper and lower two layer web 52b1 ', 52b3 ' and Time of Fluff Slurry 52b2 ' phase
Formed after superposition by heating device fixed network, in which: web 52b1 ', 52b3 ' in composite absorbent paper be spun-bonded fibre net or
Meltblown fiber web.
The present invention with the above structure, since super absorbent resin layer 52c is set to plane longitudinal direction/horizontal proliferation absorbed layer
52b, 52b ' between so that body fluid by thickness direction osmotic absorption layer 52a, plane longitudinal direction/horizontal proliferation absorbed layer 52b and
Extra body fluid further increases sanitary absorbent article again in plane longitudinal direction/horizontal proliferation after super absorbent resin layer 52c
Liquid absorption amount, while the utilization rate of sanitary absorbent article is also considerably increased, it is not in be caused due to full close of local absorption amount
Side leakage or back leak phenomenon.
Technology contents and technical characterstic of the invention have revealed that as above, the quantity of building block of the invention is not with above-mentioned
It is limited, those skilled in the art is still potentially based on announcement of the invention and makees the various replacements without departing substantially from creation spirit of the present invention
And modification.Therefore, protection scope of the present invention should be not limited to disclosed in embodiment, and should be replaced including various without departing substantially from of the invention
It changes and modifies, and covered by claims.
Claims (10)
1. a kind of sanitary absorbent article, surface layer, absorbed layer and ventilative bottom, feature including from top to bottom setting gradually exist
In: the absorbed layer includes thickness direction osmotic absorption layer and plane longitudinal direction/horizontal proliferation absorbed layer, the thickness direction infiltration
Absorbed layer is made of foamed material and is located on plane longitudinal direction/horizontal proliferation absorbed layer；Plane longitudinal direction/the horizontal proliferation
Absorbed layer is disposed adjacent with the thickness direction osmotic absorption layer, and the plane longitudinal direction/horizontal proliferation absorbed layer includes compound suction
Water paper, the composite absorbent paper include the Time of Fluff Slurry of the web and middle layer positioned at upper and lower surfaces, and the foamed material is opened
Porosity 70%~99.9%.
2. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the foamed material is aperture flexibel polyurethane
Foamed material.
3. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the foamed material is with stereoscopic three-dimensional net
The melamine foamed material of lattice open-celled structure.
4. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the foamed material is under 0.3PSI pressure
Compressed shape variability is 1%~60%.
5. a kind of sanitary absorbent article as described in claim 1-4, it is characterised in that: have on the foamed material through hair
The infundibulate aperture of foam material.
6. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the plane longitudinal direction/horizontal proliferation absorbed layer
In include super absorbent resin.
7. a kind of sanitary absorbent article as claimed in claim 6, it is characterised in that: the super absorbent resin is high-hydroscopicity tree
Rouge layer, and be located under the composite absorbent paper.
8. a kind of sanitary absorbent article as claimed in claim 7, it is characterised in that: also have under the super absorbent resin layer
One or more layers composite absorbent paper.
9. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the web in the composite absorbent paper is to spin
Viscous web or meltblown fiber web.
10. a kind of sanitary absorbent article as described in claim 1, it is characterised in that: the composite absorbent paper is by upper and lower two layers
It is formed after web and Time of Fluff Slurry are superimposed by heating device fixed network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350731.1A CN109998791A (en) | 2019-04-28 | 2019-04-28 | A kind of sanitary absorbent article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350731.1A CN109998791A (en) | 2019-04-28 | 2019-04-28 | A kind of sanitary absorbent article |
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| Publication Number | Publication Date |
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| CN109998791A true CN109998791A (en) | 2019-07-12 |
Family
ID=67174809
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910350731.1A Pending CN109998791A (en) | 2019-04-28 | 2019-04-28 | A kind of sanitary absorbent article |
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| CN (1) | CN109998791A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111631863A (en) * | 2020-06-05 | 2020-09-08 | 福建永荣达日用品制造有限公司 | Disposable absorbent article and absorbent core |
| CN114533405A (en) * | 2022-01-24 | 2022-05-27 | 佛山南宝高盛高新材料有限公司 | Novel elastic absorption core and preparation method thereof |
| CN114767391A (en) * | 2022-03-14 | 2022-07-22 | 厦门延江新材料股份有限公司 | Foam core and manufacturing method thereof |
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