CN202637279U - Hydroscopic high molecular material layer and hydroscopic sanitary product - Google Patents
Hydroscopic high molecular material layer and hydroscopic sanitary product Download PDFInfo
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- CN202637279U CN202637279U CN 201220333690 CN201220333690U CN202637279U CN 202637279 U CN202637279 U CN 202637279U CN 201220333690 CN201220333690 CN 201220333690 CN 201220333690 U CN201220333690 U CN 201220333690U CN 202637279 U CN202637279 U CN 202637279U
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Abstract
The utility model discloses a hydroscopic high molecular material layer, which comprises a high molecular foamed framework and a super-absorbent resin, wherein the high molecular foamed framework is made by adopting a physical or chemical foaming method, has a perforated opened structure, is 5-200mL/g in specific pore volume, and is 50-100 percent in aperture ratio; the super-absorbent resin is attached to or embedded into the hole wall of the opened structure; every cubic meter of high molecular material layer contains 2-200kg of super-absorbent resin; and the water retaining capacity of the high molecular material layer is not less than 5g/g. In the scheme, a super-absorbent resin structural body is attached to the hole wall of the high molecular foamed framework in a bonding/embedding form, and is swelled for locking a body fluid when contacted with the body fluid. During walking of a user, the super-absorbent resin structural body is prevented from moving relatively in a sanitary product, so that deformation of the sanitary product is reduced to the maximum extent, and gel which absorbs a fluid is prevented from being agglomerated.
Description
Technical field
This utility model relates to a kind of absorptive polymer material layer that has, and makes the water absorption hygienic article that contacts with human body such as sanitary towel, diaper, sanitary pad, tampon etc. by this high score material layer.
Background technology
Absorbefacient hygienic article comprises the products such as sanitary towel, diaper, sanitary pad, this series products generally all possesses three main functional layers, namely the body fluid surface layer that can permeate, body fluid had absorb and the absorbent core layer of storage capacity and intercept the bottom of leakage of body fluids.Surface layer is for being generally non-woven fabrics or making hole film material, and absorbent core layer mainly is comprised of materials such as Time of Fluff Slurry, High hydrophilous resins (SAP), and bottom is the composite of polyethylene film or polyethylene film and non-weaving cloth.SAP is with after body fluid contacts, and the liquid that can absorb own wt tens even hundred times forms gel, and this gel has higher suction and water retention property, even also the water of the inner absorption of gel can not extruded under certain pressure.These characteristics make such health product reduce to greatest extent the phenomenon that body fluid in the absorbent core layer returns to surface layer in the process of using, thereby user produces comfortable, dry and comfortable impression.Therefore, the application of SAP in health product is more and more extensive.
Yet SAP in use also has its drawback.When the main absorber as core material uses, SAP often disperses with the form of individual particles and is entrained in Time of Fluff Slurry or the cotton fiber, volume meeting rapid expansion behind SAP granule liquid-absorbing, and the dry SAP particle of granule strength descends violent, the gel piece of gel Adhesion formation pasty state, the relative position of gel in health product will be subjected to displacement in the process that user is walked about, and causes gel to be reunited, and health product deforms easily.Health product after the distortion repeatedly absorbs and the performance that keeps will reduce body fluid, is easier to occur side leakage and the seepage of body fluid.
The utility model content
For solving the technical problem that exists in the prior art, the utility model discloses a kind of bleed back or side leakage is less and to the absorptive polymer material layer that has of safer, comfortable, the dry and comfortable sensation of people, and comprise the absorptive hygienic article with absorptive polymer material layer.
This utility model solves the problems of the technologies described above, the technical scheme that adopts is: a kind of absorptive polymer material layer that has is provided, comprise, macromolecule foaming skeleton 10, this macromolecule foaming skeleton 10 has open-celled structure 12 and the super absorbent resin structure 20 of mutual perforation, and this super absorbent resin structure 20 adheres to or is embedded on the hole wall of open-celled structure 12.
As preferred version of the present utility model, the specific pore volume of described macromolecule foaming skeleton 10 is 5-200mL/g, and percent opening is 50-100%.
As preferred version of the present utility model, comprise super absorbent resin 2-200kg in every cubic metre of this polymer material layer, the moisture-holding capacity of this absorptive polymer material layer is not less than 5g/g.
As preferred version of the present utility model, described macromolecule foaming skeleton 10 is made by any material in polyurathamc, foaming EVA, the foaming PE material.
As preferred version of the present utility model, the specific pore volume of described macromolecule foaming skeleton 10 is 50-150mL/g.
As preferred version of the present utility model, the percent opening of described macromolecule foaming skeleton 10 is 70-100%.
As preferred version of the present utility model, contain super absorbent resin 2-50kg in described every cubic metre of polymer material layer.
As preferred version of the present utility model, the moisture-holding capacity of described absorbent polymer material layer is not less than 10g/g.
As preferred version of the present utility model, comprise in the described polymer material layer that any or the arbitrary mixture that combines between them in Time of Fluff Slurry, paper pulp, titanium dioxide, the calcium carbonate is as filler.
This utility model solves the technical problem that exists in the prior art, a kind of absorptive hygienic article also is provided, comprise the permeable surface layer of body fluid, body fluid is had the absorbent core layer of absorption and memory function and the bottom that intercepts the body fluid infiltration, surface layer, absorbent core layer and bottom are mutually stacked, and described absorbent core layer includes such as above-mentioned arbitrary described absorptive polymer material layer that has.
Technical scheme described in the utility model is with respect to prior art, and the beneficial effect of obtaining is:
Described in the utility model have absorptive polymer material layer, and comprise that this has the absorptive hygienic article of absorptive polymer material layer, is applied to personal nursing, health and medical field.Because the super absorbent resin structure is attached on the hole wall of macromolecule foaming skeleton with the form that adheres to, inlays, when contact body fluid, super absorbent resin structure swelling is also pinned body fluid.When user is walked about, relative displacement can not occur in the super absorbent resin structure in health product, thereby having reduced to greatest extent health product deforms, gel after the imbibition can not reunited yet, repeatedly imbibition and memory property can not reduce because of adhesion, and effectively reduced the generation that bleeds back with side leakage, given a kind of safer, comfortable, dry and comfortable impression of user.
(2) in traditional hygienic article, the super absorbent resin structure disperses with the form of individual particles and is entrained in Time of Fluff Slurry or the cotton fiber.And it is in this this utility model that macromolecule foaming skeleton and super absorbent resin structure is integrated, can easily the absorbent polymer material layer be cut into the shape of any needs, more convenient in as the production of the core material of health product and processing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of a part of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining this utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the front view of absorptive polymer material layer suction that has described in the utility model;
Fig. 2 is the rear view of absorptive polymer material layer suction that has described in the utility model;
Fig. 3 is absorptive hygienic article structural representation described in the utility model.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining this utility model, and be not used in restriction this utility model.
As shown in Figure 1 and Figure 2, described in the utility model have an absorptive polymer material layer, comprises macromolecule foaming skeleton 10 and super absorbent resin structure 20.Macromolecule foaming skeleton 10 adopts physics or chemical blowing method and makes with continuous or discontinuous foaming technique, macromolecule foaming skeleton 10 and have the open-celled structure 12 of mutual perforation, its specific pore volume is 5-200mL/g, percent opening is 50-100%, open-celled structure 12 can allow the indissolvable component in the body fluid freely to pass through, and the super absorbent resin structure 20 on the hole wall is absorbed the body fluid of the open-celled structure 12 of flowing through fast.Super absorbent resin structure 20 adheres to or is embedded on the hole wall of open-celled structure 12, contain super absorbent resin 2-200kg in every cubic metre of polymer material layer, and the moisture-holding capacity of this macromolecular material is not less than 5g/g, so that this absorptive polymer material layer is after absorb body fluids, can prevent that body fluid from returning surface layer again, improve the dry and comfortable property of absorbent article.
Wherein,
(1) specific pore volume claims again pore volume.The pore total measurement (volume) that the unit mass porosu solid has is called specific pore volume Vg.Specific pore volume is often calculated according to Vg=1/ ρ p-1/ ρ t by porous material density p p and true density ρ t.1/ ρ p-is the apparent volume of 1g porosu solid in the formula; 1/ ρ t is the volume of skeleton in the lg porosu solid; Both differences equal specific pore volume.Specific pore volume is generally measured with carbon tetrachloride method, utilizes under certain carbon tetrachloride steam pressure, and carbon tetrachloride is full of the hole in the endoporus cohesion of porosu solid, and this volume that has condensed carbon tetrachloride is exactly the volume in adsorbent hole.
(2) percent opening runs through the ratio of the shared volume of hole and porous body cumulative volume for the porous material split shed.Utilize vacuum impregnation technology to test, method is as follows: first the sample that cleans up is weighed in air, impregnated with molten paraffin in vacuum state, make the saturated rear taking-up of whole perforates, remove the unnecessary medium of specimen surface, again in air, weigh, then in water, weigh, calculate porosity by following formula at last:
θ=1-(M1ρw)/[(M2-M3)ρs]
In the formula, M1-sample is quality in air, g;
M2-sample dipping is quality in air afterwards, g;
Quality behind M3-sample dipping in hydraulic fluid (water), g;
The density of used hydraulic fluid water during ρ w-weighing, g/cm3 (the ρ w=1g/cm3 of distilled water);
The density of the corresponding dense material of ρ s-porous body, g/cm3.
The percent opening of respective material is:
θ0=[(M2-M1)ρw]/[(M2-M3)ρm]
The density of ρ m-steeping medium in the formula, g/cm3.
(3) moisture-holding capacity (SR), method of testing with reference to moisture-holding capacity among the GB/T22905-2008, with water absorbing material in distilled water water absorption and swelling after 30 minutes at diameter 200mm, in the centrifuge of rotating speed 1500r/min centrifuge dehydration after 3 minutes weight be the multiplying power of weight of absorbing material of foaming before the suction.Computing formula is:
SR=M1/M0
The centrifugal rear quality of M1 in the formula-foaming absorbing material, g;
Quality before M0-foaming absorbing material suction, g;
SR-centrifugal moisture-holding capacity, g/g.
Because it is lower not add the density of macromolecule water uptake material layer, volume is larger, do not add the macromolecule water uptake material layer and carry out moisture-holding capacity when test when getting 0.2 gram, it is very low near the moisture of centrifuge tube opening portion to find not add the macromolecule water uptake material layer in the time of centrifugal 3 minutes, and it is higher near the moisture of centrifuge tube bottom, the value that causes whole centrifugal moisture-holding capacity of not adding the macromolecule water uptake material layer is higher but increase centrifugal force or increase centrifugation time, the water of bottom also is thrown out of, and moisture-holding capacity is lower.
Step foam process with absorptive polymer material layer described in the utility model, first super absorbent resin structure 20 is joined before the adding initiator initiated polymerization and comprise monomer, cross-linking agent, foaming agent, foam stabiliser, in hydrophilic surfactant active's etc. the polymerization system, stir with given pace, make super absorbent resin structure 20 Uniform Dispersion in system, add initiator or implement by light or heat in the process of polymerization that the existence of foaming agent produces a large amount of foams afterwards in the system, the gelation of polymerization and the foamed of polymerization system are carried out simultaneously, obtain at last adhering on the hole wall, be inlaid with the macromolecule foaming skeleton 10 of an amount of super absorbent resin structure 20.
For performed polymer or semi-prepolymer foam process, after performed polymer or semi-prepolymer formation, adding foaming agent produces before the bubble system again, in performed polymer or semi-prepolymer, add super absorbent resin structure 20, with the given pace stirring super absorbent resin structure 20 is uniformly dispersed in system, adding foaming agent makes system produce a large amount of foams to pass through simultaneously initiator, light, heat, or the means such as microwave initiated polymerization or crosslinked rapidly, the gelation of polymerization and the foamed of polymerization system are occured simultaneously, the foam that produces in the polymerization system can be retained in the system of implementing polymerization to greatest extent, obtains at last the macromolecule foaming skeleton 10 that inside comprises super absorbent resin structure 20.This macromolecule foaming skeleton 10 has the open-celled structure 12 that runs through.
As shown in Figure 1 and Figure 2, liquid with have absorptive macromolecule foaming skeleton 10 when contacting, liquid can spread in the open-celled structure that runs through mutually 12 that foaming structure forms freely, and in the process of diffusion, absorbed by the super absorbent resin structure 20 macromolecule foaming skeleton 10 in and maintain the certain coefficient of simultaneously super absorbent resin structure 20 expansions.Because the position of super absorbent resin structure 20 is fixing, so can not move freely after the imbibition, this macromolecule foaming skeleton 10 is difficult for occuring deformation.Integrated by macromolecule foaming skeleton 10 and super absorbent resin structure 20 makes and produces and use more convenient, and is difficult for deforming in the user use procedure.
As shown in Figure 3, this utility model also provides a kind of absorptive hygienic article, comprise the permeable surface layer 30 of body fluid, body fluid is had the absorbent core layer of absorption and memory function and the bottom 40 that intercepts the body fluid infiltration, surface layer 30, absorbent core layer and bottom 40 are mutually stacked, absorbent core layer then contains the absorptive polymer material layer that has described in the utility model, also namely just comprises macromolecule foaming skeleton 10 and super absorbent resin structure 20.Various embodiments with absorptive polymer material layer are equally applicable to water absorption hygienic article described in the utility model.
Above-mentioned explanation illustrates and has described preferred embodiment of the present utility model, as previously mentioned, be to be understood that this utility model is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in utility model contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from spirit and scope of the present utility model, then all should be in the protection domain of this utility model claims.
Claims (10)
1. one kind has absorptive polymer material layer, it is characterized in that, comprise,
Macromolecule foaming skeleton (10), this macromolecule foaming skeleton (10) has the open-celled structure (12) of mutual perforation;
Water-absorbing resins structure (20), this super absorbent resin structure (20) adheres to or is embedded on the hole wall of open-celled structure (12).
2. according to claim 1 have an absorptive polymer material layer, it is characterized in that the specific pore volume of described macromolecule foaming skeleton (10) is 5-200mL/g, and percent opening is 50-100%.
3. according to claim 1 have an absorptive polymer material layer, it is characterized in that comprise super absorbent resin 2-200kg in every cubic metre of this polymer material layer, the moisture-holding capacity of this absorptive polymer material layer is not less than 5g/g.
4. according to claim 1 have an absorptive polymer material layer, it is characterized in that, described macromolecule foaming skeleton (10) is made by any material in polyurathamc, foaming EVA, the foaming PE material.
5. according to claim 1 have an absorptive polymer material layer, it is characterized in that the specific pore volume of described macromolecule foaming skeleton (10) is 50-150mL/g.
6. according to claim 1 have an absorptive polymer material layer, it is characterized in that the percent opening of described macromolecule foaming skeleton (10) is 70-100%.
7. according to claim 1 have an absorptive polymer material layer, it is characterized in that, comprises super absorbent resin 2-50kg in described every cubic metre of this polymer material layer.
8. according to claim 1 have an absorptive polymer material layer, it is characterized in that the moisture-holding capacity of described polymer material layer is not less than 10g/g.
9. according to claim 1 have an absorptive polymer material layer, it is characterized in that, comprise in the described polymer material layer that any or the arbitrary mixture that combines between them in Time of Fluff Slurry, paper pulp, titanium dioxide, the calcium carbonate is as filler.
10. absorptive hygienic article, comprise the permeable surface layer of body fluid, body fluid is had the absorbent core layer of absorption and memory function and the bottom that intercepts the body fluid infiltration, surface layer, absorbent core layer and bottom are mutually stacked, it is characterized in that described absorbent core layer includes such as arbitrary described absorptive polymer material layer that has in the claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333690 CN202637279U (en) | 2012-07-10 | 2012-07-10 | Hydroscopic high molecular material layer and hydroscopic sanitary product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220333690 CN202637279U (en) | 2012-07-10 | 2012-07-10 | Hydroscopic high molecular material layer and hydroscopic sanitary product |
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| CN202637279U true CN202637279U (en) | 2013-01-02 |
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| CN 201220333690 Expired - Lifetime CN202637279U (en) | 2012-07-10 | 2012-07-10 | Hydroscopic high molecular material layer and hydroscopic sanitary product |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367418A (en) * | 2013-08-16 | 2015-02-25 | 刘燕 | Composite absorption core |
| CN106109108A (en) * | 2016-07-29 | 2016-11-16 | 杭州珂瑞特机械制造有限公司 | Partly wrap ultra-thin glue-free strong fluid aspirating core body and manufacture method |
| CN106109106A (en) * | 2016-07-29 | 2016-11-16 | 杭州珂瑞特机械制造有限公司 | The ultra-thin glue-free strong fluid aspirating core body of full bag and manufacture method |
| CN107981987A (en) * | 2016-10-26 | 2018-05-04 | 山东太阳生活用纸有限公司 | Absorbent article core and its manufacture method and absorbent article |
-
2012
- 2012-07-10 CN CN 201220333690 patent/CN202637279U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367418A (en) * | 2013-08-16 | 2015-02-25 | 刘燕 | Composite absorption core |
| CN104367418B (en) * | 2013-08-16 | 2018-10-23 | 刘燕 | Composite absorption core |
| CN106109108A (en) * | 2016-07-29 | 2016-11-16 | 杭州珂瑞特机械制造有限公司 | Partly wrap ultra-thin glue-free strong fluid aspirating core body and manufacture method |
| CN106109106A (en) * | 2016-07-29 | 2016-11-16 | 杭州珂瑞特机械制造有限公司 | The ultra-thin glue-free strong fluid aspirating core body of full bag and manufacture method |
| CN107981987A (en) * | 2016-10-26 | 2018-05-04 | 山东太阳生活用纸有限公司 | Absorbent article core and its manufacture method and absorbent article |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN YANJIANG NEW MATERIAL CO., LTD. Free format text: FORMER NAME: XIAMEN YANJIANG INDUSTRY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 361000 Huli garden, Tongan Industrial Concentration Area, Fujian, Xiamen 87-88, China Patentee after: XIAMEN YANJAN NEW MATERIAL Co.,Ltd. Address before: 361000 Huli garden, Tongan Industrial Concentration Area, Fujian, Xiamen 87-88, China Patentee before: XIAMEN YANJAN INDUSTRY Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |