CN203970686U - Composite absorption core body - Google Patents
Composite absorption core body Download PDFInfo
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- CN203970686U CN203970686U CN201320503409.6U CN201320503409U CN203970686U CN 203970686 U CN203970686 U CN 203970686U CN 201320503409 U CN201320503409 U CN 201320503409U CN 203970686 U CN203970686 U CN 203970686U
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- core body
- perforation
- absorption core
- longitudinal perforation
- composite absorption
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Abstract
This utility model provides a kind of composite absorption core body, comprise top layer, bottom and be arranged at described top layer and described bottom between absorbent central layer, on described absorbent central layer, offer a plurality of longitudinal perforation, in described longitudinal perforation, be filled with hydroscopic high-molecular resin.Composite absorption core body of the present utility model is owing to offering perforation on absorbent central layer, and hydroscopic high-molecular resin is filled in these perforation, has improved the loading of hydroscopic high-molecular resin, thereby can increase the liquid absorption of composite absorption core body.
Description
Technical field
This utility model relates to a kind of daily absorbent item, relates in particular to a kind of absorptive core with composite construction, and this absorptive core can be applicable in various disposable absorbent articles, such as disposable diaper, sanltary towel etc.
Background technology
Absorptive core is the most key in disposable absorbent article and part and parcel.The performance of disposable absorbent article, is determined by absorptive core to a great extent such as the quality of water absorption, retentivity etc.
In the prior art, absorptive core generally comprise top layer, bottom and be arranged at top layer and bottom between intermediate layer, and by the mode such as bonding, absorbent material is fixed on the surface in intermediate layer.While touching the liquid such as water when absorptive core, liquid is by arrival intermediate layer, top layer, and the absorbent material being fixed on intermediate layer absorbs and keeps, and plays the effect that absorbs liquid.Therefore, the amount of absorptive core fluid-absorbing is by how many decisions of absorbent material.Yet in this structure, because absorbent material is only distributed between top layer and intermediate layer and between bottom and intermediate layer conventionally, the abundance of absorbent material is subject to larger restriction, this is one of deficiency.Two of deficiency is after absorbent material has adsorbed a large amount of liquid, often causes between top layer or bottom and intermediate layer separatedly, and a large amount of absorbent materials can be overflowed from the side of absorptive core.
In another prior art (for example, Chinese utility model patent CN200920194714.5), in order to solve the problem of the abundance of absorbent material, its intermediate layer adopts such as porous materials such as fiber hot-wind nonwoven cloths, absorbent material is embedded in the hole of porous material, to increase the abundance of absorbent material.But because the hole on porous material is self-assembling formation, the shape in hole and size are irregular distribution, absorbent material will be embedded in these holes, real non-easy thing.A large amount of absorbent materials is still distributed on the surface in intermediate layer.Therefore, the increase of absorbent material abundance is limited, and, do not solve the problem that top layer or bottom are separated with intermediate layer and absorbent material is overflowed from side yet.
Utility model content
The purpose of this utility model is to provide a kind of composite absorption core body, has overcome the problem existing in conventional art, can effectively promote the absorbtivity of liquid.
According to above-mentioned purpose, this utility model provides a kind of composite absorption core body,
Comprise top layer, bottom and be arranged at described top layer and described bottom between absorbent central layer, on described absorbent central layer, offer a plurality of longitudinal perforation, in described longitudinal perforation, be filled with hydroscopic high-molecular resin.
In above-mentioned composite absorption core body, described longitudinal perforation is evenly distributed on described absorbent central layer.
In above-mentioned composite absorption core body, described longitudinal perforation is circular hole, square hole, elliptical aperture or diamond hole.
In above-mentioned composite absorption core body, described longitudinal perforation is circular hole, and described intermediate absorption body adopts fluffy non-woven fabrics or fluffy fiber paper, and the radius of described longitudinal perforation is 0.2-2.5mm; The scope of the thickness of described intermediate absorption body is 0.5-8mm; The quantity of described longitudinal perforation is 4-50/cm
2.
In above-mentioned composite absorption core body, the radius of described longitudinal perforation is 0.3-1.2mm; The scope of the thickness of described intermediate absorption body is 1-4mm; The quantity of described longitudinal perforation is 8-30/cm
2.As mentioned above, composite absorption core body of the present utility model is owing to offering perforation on absorbent central layer, and hydroscopic high-molecular resin is filled in these perforation, has improved the loading of hydroscopic high-molecular resin, thereby can increase the liquid absorption of composite absorption core body.
Accompanying drawing explanation
Fig. 1 shows the structural representation of this utility model composite absorption core body;
Fig. 2 shows the profilograph of composite absorption core body of the present utility model;
Fig. 3 shows composite absorption core body of the present utility model and flow to effect when absorbing liquid;
The hydroscopic high-molecular resin that Fig. 4 shows in composite absorption core body of the present utility model has absorbed the state after liquid;
Fig. 5 A-Fig. 5 B shows a plurality of embodiment of the distribution mode of longitudinal perforation on absorbent central layer.
The specific embodiment
Refer to Fig. 1, Fig. 1 shows the structural representation of this utility model composite absorption core body.As shown in Figure 1, composite absorption core body comprises top layer 1, absorbent central layer 2 and bottom 3.Absorbent central layer 2 is sandwiched between top layer 1 and bottom 3.
Top layer 1 can adopt the material with seepage function, and dust-free paper or infiltration non-woven fabrics for example seep water.Bottom 3 can adopt the material of liquid-impermeable, for example, refuse water non-woven fabrics.Certainly, as required, bottom 3 also can adopt material as same or similar in top layer 1.
Absorbent central layer 2 can adopt traditional material, materials such as fluffy nonwoven cloth material, fluffy fiber paper.Key feature of the present utility model is: on absorbent central layer 2, offer longitudinal perforation 21, at these, longitudinally in perforation 21, be filled with hydroscopic high-molecular resin 22.Concrete structure also can be simultaneously referring to the profilograph of Fig. 2.For illustrate clear for the purpose of, in Fig. 1, only in the lower left corner, with dashed line form, show the schematic perspective view of perforation 21, but should be appreciated that these perforation 21 can be arranged in the optional position of absorbent central layer 2 as required.Same reason, also not shown hydroscopic high-molecular resin 22 in Fig. 1.
Composite absorption core body of the present utility model is owing to offering perforation on absorbent central layer, and hydroscopic high-molecular resin 22 can be filled in these perforation, has improved the loading of hydroscopic high-molecular resin, thereby can increase the liquid absorption of composite absorption core body.Compare with conventional art, because water absorbing material in conventional solution is mainly distributed on the top layer in intermediate layer, in order to make skin-material or primer and intermediate layer material have good degree of adhesion, water absorbing material can not be too many, and its amount is very restricted.And hydroscopic high-molecular resin of the present utility model is mainly distributed in perforation, its loading is improved significantly.On the other hand, liquid enters intermediate layer from top layer conventionally, first often that water absorbing material between skin-material and intermediate layer material can absorb water and expand, thereby form barrier layer, cause liquid further to the water absorbing material between primer and intermediate layer material, to flow, the water absorbing material between primer and intermediate layer material cannot play a role.And in this utility model, water-absorbing resin is filled in longitudinal perforation, the liquid entering from top layer can enter into perforation along the space outside intermediate layer material perforation, by water-absorbing resin, absorbed, the water-absorbing resin cylinder that liquid is evenly distributed simultaneously absorbs, and can not form obstruct, given full play to the effect of hydroscopic high-molecular resin.Fig. 3 shows its design sketch.
Meanwhile, due to hydroscopic high-molecular resin, be filled into the inside of intermediate absorption layer material.The expansion producing when hydroscopic high-molecular resin absorbs liquid, also the inside that is present in absorbent central layer, thereby avoided hydroscopic high-molecular resin major part in prior art to be filled in the surface in intermediate layer, and separated between the skin-material producing or primer and intermediate layer material, and the hydroscopic high-molecular resin problem of overflowing from core body side.The hydroscopic high-molecular resin that Fig. 4 shows in composite absorption core body of the present utility model has absorbed the state after liquid.As can be seen from Figure 4 the hydroscopic high-molecular resin, absorbing after liquid expands in the horizontal.And expansion is longitudinally subject to the covering of parcel and top layer and the bottom of intermediate layer material.
In addition, for composite absorption core body, its technical specification is except suction volume, and respiratory time is also quite important, and the length of respiratory time is main relevant with the contact surface area of liquid and hydroscopic high-molecular resin.In the above-described embodiments, water-absorbing resin is filled in longitudinal perforation, water-absorbing resin forms cylinder body shape, except upper surface directly contacts with liquid, column side face also can directly contact (as shown in Figure 3) with liquid, therefore, virtually improve significantly the contact area between water-absorbing resin and liquid, effectively shortened the respiratory time of liquid.
This utility model and traditional absorptive core to be compared to the result of experiment below:
From the above results, can find out, than traditional absorptive core, under the condition of equal top layer, intermediate layer, bottom, absorptive core of the present utility model has larger advantage in suction volume and respiratory time.Suction volume has increased more than 80%, and respiratory time reduces approximately half.
Longitudinally the distribution mode of perforation 21 on absorbent central layer 2, conventionally take and is uniformly distributed as good, so that absorbent central layer 2 has uniform imbibition ability.Fig. 5 A and Fig. 5 B show the distribution mode of longitudinal perforation 21 on absorbent central layer 2.In the embodiment of Fig. 5 A, 21 modes with row (or row) of longitudinally boring a hole are scattered in a matrix.Longitudinally bore a hole 21 spacing of every row (or every row) equates.In the embodiment of Fig. 5 B, 21 modes with row (or row) of longitudinally boring a hole distribute.Longitudinally bore a hole 21 spacing of every row (or every row) equates, between adjacent lines, staggers.Longitudinally the shape of perforation 21 can be circular hole as shown in Fig. 5 A and Fig. 5 B, but in composite absorption core body of the present utility model, the shape of longitudinal perforation 21 is not limited to this, also can adopt such as square hole, elliptical aperture, diamond hole etc.
The longitudinal size numerical value of perforation 21, conventionally can consider the factors such as material that absorbent central layer 2 uses, thickness and select.In a preferred embodiment, absorbent central layer 2 adopts fluffy non-woven fabrics, and its thickness is 2.2mm, the 21 employing circular holes of longitudinally boring a hole, and the radius of this circular hole is 1mm, highly with the thickness of fluffy non-woven fabrics, i.e. 2.2mm.The circular hole number distributing on every square centimeter of non-woven fabrics is 10.
Scope and the exemplary embodiments of longitudinal perforation 21 size numerical value have been shown in following table.
| ? | Scope | Preferential scope | Embodiment 1 | Embodiment 2 |
| The radius R in hole (mm) | 0.2-2.5 | 0.3-1.2 | 1 | 0.6 |
| Thickness H(mm) | 0.5-8 | 1-4 | 2.2 | 2.2 |
| Hole count N (individual/cm 2) | 4-50 | 8-30 | 10 | 22 |
?in addition, this utility model also it should be noted that, under practical situation, accurately control that water-absorbing resin is all filled in longitudinal perforation is more difficult.And, effect, also there is no need to do so accurate control.Therefore, this utility model also can allow absorbent central layer and top layer or and bottom between scatter a small amount of water-absorbing resin, especially, around perforation, this small amount of distribution can not produce the defect existing in conventional art.Within this situation should be deemed to be included in protection domain of the present utility model.
Claims (5)
1. a composite absorption core body, comprise top layer, bottom and be arranged at described top layer and described bottom between absorbent central layer, on described absorbent central layer, offer a plurality of longitudinal perforation, in described longitudinal perforation, be filled with hydroscopic high-molecular resin.
2. composite absorption core body as claimed in claim 1, is characterized in that, described longitudinal perforation is evenly distributed on described absorbent central layer.
3. composite absorption core body as claimed in claim 1 or 2, is characterized in that, described longitudinal perforation is circular hole, square hole, elliptical aperture or diamond hole.
4. composite absorption core body as claimed in claim 1 or 2, is characterized in that, described longitudinal perforation is circular hole, and described intermediate absorption body adopts fluffy non-woven fabrics or fluffy fiber paper, and the radius of described longitudinal perforation is 0.2-2.5mm; The scope of the thickness of described intermediate absorption body is 0.5-8mm; The quantity of described longitudinal perforation is 4-50/cm
2.
5. composite absorption core body as claimed in claim 4, is characterized in that, the radius of described longitudinal perforation is 0.3-1.2mm; The scope of the thickness of described intermediate absorption body is 1-4mm; The quantity of described longitudinal perforation is 8-30/cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503409.6U CN203970686U (en) | 2013-08-16 | 2013-08-16 | Composite absorption core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320503409.6U CN203970686U (en) | 2013-08-16 | 2013-08-16 | Composite absorption core body |
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| Publication Number | Publication Date |
|---|---|
| CN203970686U true CN203970686U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320503409.6U Expired - Lifetime CN203970686U (en) | 2013-08-16 | 2013-08-16 | Composite absorption core body |
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| Country | Link |
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| CN (1) | CN203970686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104367418A (en) * | 2013-08-16 | 2015-02-25 | 刘燕 | Composite absorption core |
| CN110464547A (en) * | 2019-08-20 | 2019-11-19 | 佛山南宝高盛高新材料有限公司 | A kind of solid compound core body and the preparation method and application thereof |
-
2013
- 2013-08-16 CN CN201320503409.6U patent/CN203970686U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN110464547A (en) * | 2019-08-20 | 2019-11-19 | 佛山南宝高盛高新材料有限公司 | A kind of solid compound core body and the preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ROUYAER HYGIENIC MATERIAL CO., LTD. Free format text: FORMER OWNER: LIU YAN Effective date: 20150414 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201824 JIADING, SHANGHAI TO: 201801 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150414 Address after: 201801 585 erudite South Road, Shanghai, Jiading District Patentee after: SHANGHAI ROUYAER HYGIENE MATERIAL CO.,LTD. Address before: 201824, room 9, No. 99, Lane 1801, Feng Zhuang Road, Shanghai, Jiading District Patentee before: Liu Yan |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200107 Address after: 201824, room 9, No. 99, Lane 1801, Feng Zhuang Road, Shanghai, Jiading District Patentee after: Gong Zheng Address before: 201801 585 erudite South Road, Shanghai, Jiading District Patentee before: SHANGHAI ROUYAER HYGIENE MATERIAL CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200721 Address after: Room 02-03, 1st floor, comprehensive office building, 6446 Baotong street, Zhujing community, Qingchi street, high tech Zone, Weifang City, Shandong Province Patentee after: Junfu new materials Co.,Ltd. Address before: 201824, room 9, No. 99, Lane 1801, Feng Zhuang Road, Shanghai, Jiading District Patentee before: Gong Zheng |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
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| CX01 | Expiry of patent term |