CN209437511U - A kind of composite absorbent core equipped with absorption weakening region - Google Patents
A kind of composite absorbent core equipped with absorption weakening region Download PDFInfo
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- CN209437511U CN209437511U CN201821700056.8U CN201821700056U CN209437511U CN 209437511 U CN209437511 U CN 209437511U CN 201821700056 U CN201821700056 U CN 201821700056U CN 209437511 U CN209437511 U CN 209437511U
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- weakening region
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- absorbent resin
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Abstract
The utility model relates to a kind of equipped with the composite absorbent core for absorbing weakening region, it include the first coating under upper, first super absorbent resin layer, high loft non-woven layer of cloth, second super absorbent resin layer, second coating, third super absorbent resin layer, third coating, first, second super absorbent resin layer is implanted into the absorbent cores being connected as one in adjacent high loft non-woven layer of cloth with high loft non-woven layer of cloth by Super Absorbent Polymer Particles respectively, and each layer is connected by hot melt adhesive layer, first that at least one is respectively arranged on the first super absorbent resin layer absorbs weakening region, and it is provided on the second super absorbent resin layer and is absorbed immediately below weakening region positioned at first, and longitudinal asymmetric axis absorbs the second of reduction area overlapping with first and absorbs weakening region, but the first transverse width for absorbing weakening region is greater than second and absorbs Weakening region forms the absorption weakening region with staged cross section in absorbent cores, increases to the permeability of urine and flow conductivity.
Description
Technical field
The utility model relates to disposable absorbent article technical field, in particular to one kind is provided with multizone absorption reduction
The seven floor composite absorbent core in area.
Background technique
Infant and other people that can't take care of oneself are often required to wear absorbent device, such as diaper.Disposable absorb is used
The function of product is that it can accommodate excreta, and keeps apart the body of these excretas and wearer and clothes and bedding.One
Secondary property absorbent item, such as diaper, usually by fluidity top layer, opaque liquid bottom and set on permeable top layer and opaque liquid
The absorbent cores composition for absorbing and liquid capable of being accommodated between bottom.
Traditional first generation absorbent cores after evenly mixing, are wrapped up by Time of Fluff Slurry and super absorbent resin by wrapper material glue spraying
Integral absorbent core structures.This absorbent cores, since super absorbent resin is evenly distributed in fluff pulp fibers, and wrapping layer
Only upper and lower level glue spraying combines, and the free space for super absorbent resin expansion is big, therefore the high water absorption in this absorbent cores
Property resin utilization rate it is high, the water absorbent rate of super absorbent resin is high.But the disconnected cotton that sticks together is acted for reduction traditional structure absorbent cores simultaneously
Problem is generally arranged hot optical pressure or heat supply network pressure compacting, reduces the flexibility of traditional absorbent core material.
Second generation absorbent cores, including it is the first coating, the first super absorbent resin layer, high loft non-woven layer of cloth, second high
Water-absorbing resins layer, the second coating, usual first super absorbent resin layer and the second super absorbent resin layer are in uniformity point
Cloth.The absorbent core material of this structure, super absorbent resin are fixed in high loft non-woven layer of cloth or are fixed on high fluffy
Between non-woven fabrics and coating, the disconnected cotton problem that sticks together is acted after super absorbent resin suction urine can be improved, since super absorbent resin is equal
Even distribution can squeeze mutually after super absorbent resin water suction, slack-off using second of infiltration rate of absorbent core material, for
The space of free wxpansion is reduced, and the utilization rate of super absorbent resin is low, and the water absorbent rate of absorbent cores is low with respect to conventional absorbent core.
The utility model has been easy the disconnected cotton that sticks together for first generation absorbent cores, and second generation absorbent core material water absorbent rate is low to ask
Topic, proposes a kind of seven layers of compound core body absorbent core material for being provided with multizone and absorbing weakening region, which includes
First coating, the first super absorbent resin layer, high loft non-woven layer of cloth, the second super absorbent resin layer, the second coating,
Three super absorbent resin layers, third coating.It is characterized in that the first super absorbent resin layer, the second high-hydroscopicity tree
Rouge layer and third super absorbent resin layer wherein one layer or in which two layers or three layers be provided with single simultaneously or a plurality of in continuous
Or the absorption weakening region of discontinuity.Multizone absorbs the presence of weakening region, can be fast by the urine on the first super absorbent resin layer
Speed penetrates into the second super absorbent resin layer and the urine of the second super absorbent resin layer is penetrated into rapidly third super absorbent resin
Rouge layer makes every layer of super absorbent resin be fully utilized, and will not block the lower bleed-through road of urine, can also be weak in absorption
Change area and form the groove with guide functions, the infiltration rate and diffusion of absorbent core material and its absorbent item can be greatly promoted
Property；Simultaneously because multizone absorbs the presence of weakening region, absorbent core material and its crotch of absorbent item can be made narrower more personal.
Summary of the invention
The purpose of this utility model is that providing one kind in view of the deficiencies of the prior art and being provided with multizone absorption reduction
Area, the composite absorbent core with seven-layer structure, to achieve the above objectives, the present invention adopts the following technical solutions:
Described is equipped with the composite absorbent core for absorbing weakening region, and the composite absorbent core has seven-layer structure, under upper
Including the first coating, the first super absorbent resin layer, high loft non-woven layer of cloth, the second super absorbent resin layer, the second covering
Layer, third super absorbent resin layer, third coating, the first super absorbent resin layer, the second super absorbent resin layer are logical
Super Absorbent Polymer Particles are crossed to be implanted into adjacent high loft non-woven layer of cloth and be connected as one with high loft non-woven layer of cloth respectively
Absorbent cores, and each layer is connected by hot melt adhesive layer, is respectively arranged at least one on the first super absorbent resin layer
The first of item absorbs weakening region, and the first absorption weakening region prolongs along the longitudinal direction of the first super absorbent resin layer to both ends
It stretches, and is provided on the second super absorbent resin layer and is absorbed immediately below weakening region positioned at described first, and is longitudinally asymmetric
Axis and described first absorbs the second absorption weakening region for weakening area overlapping, but the transverse width of the first absorption weakening region is big
Weakening region is absorbed in described second, and then forms the absorption weakening region with staged cross section in the absorbent cores.
Preferably, from the first super absorbent resin layer to the third super absorbent resin layer, super absorbent resin
Distribution density is successively incremented by.
Preferably, it is located at the absorption weakening region of the first super absorbent resin layer, the second super absorbent resin layer
It is two, and is separately positioned on the both lateral sides side of each super absorbent resin layer.
It preferably, further include absorbing weakening region in the third that the third super absorbent resin layer is provided at least one.
Preferably, it is absorbed along the third that the longitudinal asymmetric axis of third super absorbent resin layer is provided with one weak
Change area.
Preferably, described first absorbs weakening region, the second absorption weakening region on the longitudinal direction of super absorbent resin layer
It is distributed for continuously distributed or discontinuity.
Preferably, the first super absorbent resin layer choosing selects that absorbency is 50 times, water conservation multiplying power is 36 times, absorbs speed
Degree is the super absorbent resin of 80s；The second super absorbent resin layer choosing selects that absorbency is 55 times, water conservation multiplying power is 33
Again, infiltration rate is the super absorbent resin of 70s；The third super absorbent resin layer choosing selects absorbency and is 60 times, is retained
The super absorbent resin that multiplying power is 30 times, infiltration rate is 20-40s.
Preferably, first coating, the second coating, third coating select square grammes per square metre for 50g/m2, fracture
Strength is the dust-free paper of 2.5N/25mm.
The utility model advantageous effects are as follows: the utility model is absorbed by being arranged on each super absorbent resin layer
Weakening region enables the urine on the first super absorbent resin layer to penetrate into the second super absorbent resin layer rapidly, and by
The urine of two super absorbent resin layers penetrates into rapidly third high hydroscopic resin layer, fills every layer of super absorbent resin
The utilization divided, will not block the lower bleed-through road of urine.Meanwhile absorption weakening region also has the function of diversion groove, can mention significantly
The infiltration rate and diffusivity of composite absorbent core and its absorbent item are risen, in addition, absorbing weakening region makes composite absorbent core and its suction
The crotch for receiving articles is narrower more personal, wears more comfortable.
Detailed description of the invention
Fig. 1 is that the utility model is equipped with the structural schematic diagram for absorbing the composite absorbent core of weakening region.
Fig. 2 is the structural schematic diagram to Fig. 1 along M-M section view of embodiment 1.
Fig. 3 is the structural schematic diagram for the absorption weakening region that embodiment 1 has staged cross section.
Fig. 4 is the structural schematic diagram to Fig. 1 along M-M section view of embodiment 2.
Fig. 5 is the schematic diagram for absorbing the distribution of weakening region discontinuity of embodiment 3.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
Term " absorbs weakening region ": absorbing weakening region and refers to since high water absorption is not distributed in absorption reduction region
Property resin or super absorbent resin distribution density be only equivalent to absorption weakening region where super absorbent resin layer high water absorption
The 15-30% of the distribution density of property resin.
The specific embodiment of the absorption weakening region of the utility model is familiar with and is grasped by those of ordinary skill in the art.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, composite absorption core material includes the first coating 1, the high suction of hot melt adhesive layer 81, first
Water-base resin layer 2, high loft non-woven layer of cloth 3, the second super absorbent resin layer 4, hot melt adhesive layer 82, the second coating 5, third are high
Water-absorbing resins layer 6, hot melt adhesive layer 83, third coating 7, each layer are formed by connecting by hot melt adhesive layer bonding.
The composite absorbent core of the present embodiment includes following structure feature:
First, the two sides on the transverse width of the first super absorbent resin layer 2, are each provided with one along the first high suction
The longitudinal direction (longitudinal direction of composite absorbent core) of water-base resin layer 2 absorbs weakening region 91(first and absorbs weakening region) and absorption weakening region 92
(first absorbs weakening region).It absorbs weakening region 91 and absorbs the both ends of weakening region 92 toward the two of the first super absorbent resin layer 2
End extends.
Second, the two sides on the transverse width of the second high hydroscopic resin layer 4, are each provided with one along the second high water absorption
The longitudinal direction (longitudinal direction of composite absorbent core) of resin layer 4 absorbs weakening region 93(second and absorbs weakening region) and absorption weakening region 94(the
Two absorb weakening region).Prolong at the both ends for absorbing weakening region 93 and absorbing the past second high hydroscopic resin layer 4 in both ends of weakening region 94
It stretches.
Third, absorb weakening region 93, absorb weakening region 94 be located at absorb weakening region 91, absorb weakening region 92 just under
Side, and absorption weakening region 93 is Chong Die with 91 longitudinal asymmetric axis of weakening region is absorbed, and similarly, absorbs weakening region 94 and absorbs weakening region
92 longitudinal asymmetric axis are also overlapped, and still, absorb weakening region 91, the transverse width of absorption weakening region 92 is wider than absorption reduction respectively
Area 93 absorbs weakening region 94.
Finally, the first super absorbent resin layer 2, the second super absorbent resin layer 4 are passed through Super Absorbent Polymer Particles point
After not being implanted into adjacent high loft non-woven layer of cloth 3, the first super absorbent resin layer 2, the second super absorbent resin layer 4 and Gao Peng
The absorbent cores that loose nonwoven layer 3 is connected as one, and then two are formed with staged cross section 101,102 in the absorbent cores
Absorption weakening region.
The absorbent cores are connect to form composite absorbent core by hot melt adhesive layer with adjacent each layer.
In a specific embodiment, first coating of the present embodiment, the second coating, third coating are wood pulp and surpass
Thin hot melt staple fiber is 50g/m through dust-free paper made of air forming, square grammes per square metre of the dust-free paper2, ultra-fine hot melt staple fiber
Ratio be 34%-50%, the ultimate strength of dust-free paper is 2.5N/25mm.Wherein, second coating of the present embodiment can also select
Select fiber Denier 1.5-3.0D, the ES fiber of fibre length 38-51mm is formed by shredding, mixed cotton, the combing of needle cloth, oven heat
Through-Air Thermal Bonded Nonwovens.
The super absorbent resin of the present embodiment is a kind of heavy polymer that acroleic acid polymerization obtains, and belongs to existing material
Material, the absorbent properties of each layer super absorbent resin are as follows:
The first super absorbent resin layer 2 selection slow trapping, Gao Baoshui, coarse grained high suction under the first coating
Water-base resin, absorbent properties are as follows: absorbency is 50 times, and water conservation multiplying power is 36 times, infiltration rate 80s.
The moderate height of the second high hydroscopic resin layer 4 selection middling speed absorption on the second coating, high water absorption, particle
Water-absorbing resins, absorbent properties are as follows: absorbency is 55 times, and water conservation multiplying power is 33 times, infiltration rate 70s.
Third super absorbent resin layer 6 between second coating and third coating selects absorption fastly, height
Water suction, fine grain super absorbent resin, absorbent properties are as follows: absorbency is 60 times, and water conservation multiplying power is 30 times, absorbs speed
Degree is 20-40s.
The high loft non-woven layer of cloth 3 of the present embodiment is a kind of fiber Denier 6.0D, fibre length 38mm and has 6
Or the PET fiber of the above crimpness belongs to existing by the Through-Air Thermal Bonded Nonwovens that shredding, mixed cotton, the combing of needle cloth, oven heat are formed
There is material.
The hot melt adhesive layer 81,82,83 of the present embodiment is that high polymers, the rosin resin/Petropols such as a kind of SBS/SIS etc. increase
The hot-fusible pressure-sensitive adhesive of the compositions such as the softening agents such as viscosity resin, naphthenic oil and antioxidant is the common hot melt adhesive kind of this field,
The resin added of the hot melt adhesive layer is 1.0 ~ 3.0g/m2, when guaranteeing dry state, super absorbent resin not positioning.
Embodiment 2
The present embodiment provides further preferred embodiment on the basis of the embodiment of embodiment 1.Such as 4 institute of attached drawing
Show, the present embodiment difference from example 1 is that, the present embodiment is longitudinally asymmetric along third super absorbent resin layer 6
Axis (center) is provided with absorption weakening region 96(third and absorbs weakening region), the both ends of weakening region 96 are absorbed toward the
The both ends of three high hydroscopic resin layers 6 extend.
As an improvement, the present embodiment is from the first super absorbent resin layer 2 to third super absorbent resin layer 6, high-hydroscopicity
The distribution density of resin is successively incremented by, and the amplitude that is incremented by is 10%-40%.
Embodiment 3
As shown in Fig. 5, the present embodiment and the difference of embodiment 1 or embodiment 2 are, it is high that the present embodiment will be located at first
The absorption weakening region 91 of water-absorbing resins layer 2 absorbs the reduction uptake zone that weakening region 92 is set as discontinuity distribution, so that
Weakening region 91 is absorbed by absorption weakening region 91a, absorption weakening region 91b and is located at absorption weakening region 91a, absorption weakening region 91b
Between unconnected area 103 form；Weakening region 92 is absorbed by absorption weakening region 92a, absorption weakening region 92b and is located at absorption reduction
Area 92a, the unconnected area 104 absorbed between weakening region 92b form.
Although the utility model describes specific case study on implementation, the scope of the utility model is not limited to
Specific embodiment is stated, in the case where not departing from the utility model in essence, to the various modifications of the utility model, variations and alternatives
Each fall within the protection scope of the utility model.
Claims (8)
1. a kind of equipped with the composite absorbent core for absorbing weakening region, the composite absorbent core has seven-layer structure, includes under upper
First coating, the first super absorbent resin layer, high loft non-woven layer of cloth, the second super absorbent resin layer, the second coating,
Three super absorbent resin layers, third coating, the first super absorbent resin layer, the second super absorbent resin layer are inhaled by high
Water-base resin particle is implanted into the absorption being connected as one in adjacent high loft non-woven layer of cloth and with high loft non-woven layer of cloth respectively
Core, and being connected each layer by hot melt adhesive layer, it is characterised in that: be respectively arranged on the first super absorbent resin layer to
The first of few one absorbs weakening region, and described first absorbs weakening region along the longitudinal direction of the first super absorbent resin layer to two
End extends, and is provided on the second super absorbent resin layer and absorbs immediately below weakening region positioned at described first, and is longitudinal
The axis of symmetry and described first absorbs the second absorption weakening region for weakening area overlapping, but described first absorbs the laterally wide of weakening region
Degree is greater than described second and absorbs weakening region, and then the absorption weakening region with staged cross section is formed in the absorbent cores.
2. according to claim 1 be equipped with the composite absorbent core for absorbing weakening region, it is characterised in that: from the described first high suction
Water-base resin layer to the third super absorbent resin layer, super absorbent resin distribution density is successively incremented by.
3. according to claim 1 be equipped with the composite absorbent core for absorbing weakening region, it is characterised in that: it is high to be located at described first
Water-absorbing resins layer, the second super absorbent resin layer the absorption weakening region be two, and be separately positioned on each high suction
The both lateral sides side of water-base resin layer.
4. according to claim 3 be equipped with the composite absorbent core for absorbing weakening region, it is characterised in that: further include described the
The third that three super absorbent resin layers are provided at least one absorbs weakening region.
5. according to claim 4 be equipped with the composite absorbent core for absorbing weakening region, it is characterised in that: along third high water absorption
Property resin layer longitudinal asymmetric axis be provided with one the third absorb weakening region.
6. -5 any composite absorbent core for being equipped with absorption weakening region according to claim 1, it is characterised in that: described first
Absorb weakening region, the second absorption weakening region is continuously distributed on the longitudinal direction of super absorbent resin layer or discontinuity distribution.
7. -5 any composite absorbent core for being equipped with absorption weakening region according to claim 1, it is characterised in that: described first
Super absorbent resin layer choosing selects that absorbency is 50 times, water conservation multiplying power is 36 times, the super absorbent resin that infiltration rate is 80s；
The second super absorbent resin layer choosing selects that absorbency is 55 times, water conservation multiplying power is 33 times, the high water absorption that infiltration rate is 70s
Property resin；The third super absorbent resin layer choosing selects that absorbency is 60 times, water conservation multiplying power is 30 times, infiltration rate 20-
The super absorbent resin of 40s.
8. -5 any composite absorbent core for being equipped with absorption weakening region according to claim 1, it is characterised in that: described first
Coating, the second coating, third coating select square grammes per square metre for 50g/m2, ultimate strength be 2.5N/25mm dust-free paper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821700056.8U CN209437511U (en) | 2018-10-19 | 2018-10-19 | A kind of composite absorbent core equipped with absorption weakening region |
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| CN201821700056.8U CN209437511U (en) | 2018-10-19 | 2018-10-19 | A kind of composite absorbent core equipped with absorption weakening region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914835A (en) * | 2021-01-20 | 2021-06-08 | 杭州豪悦护理用品股份有限公司 | Novel composite core and preparation method thereof |
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2018
- 2018-10-19 CN CN201821700056.8U patent/CN209437511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914835A (en) * | 2021-01-20 | 2021-06-08 | 杭州豪悦护理用品股份有限公司 | Novel composite core and preparation method thereof |
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