CN112914835A - Novel composite core and preparation method thereof - Google Patents
Novel composite core and preparation method thereof Download PDFInfo
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- CN112914835A CN112914835A CN202110073596.8A CN202110073596A CN112914835A CN 112914835 A CN112914835 A CN 112914835A CN 202110073596 A CN202110073596 A CN 202110073596A CN 112914835 A CN112914835 A CN 112914835A
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- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title description 4
- 239000010410 layer Substances 0.000 claims abstract description 139
- 239000002245 particle Substances 0.000 claims abstract description 48
- 239000011347 resin Substances 0.000 claims abstract description 46
- 229920005989 resin Polymers 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 239000011247 coating layer Substances 0.000 claims abstract description 34
- 239000002250 absorbent Substances 0.000 claims abstract description 30
- 230000002745 absorbent Effects 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000011162 core material Substances 0.000 claims description 44
- 239000000835 fiber Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009960 carding Methods 0.000 claims description 7
- 229920000728 polyester Polymers 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 238000007596 consolidation process Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 229920000247 superabsorbent polymer Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 230000003821 menstrual periods Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- A61F13/15577—Apparatus or processes for manufacturing
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention discloses a novel composite core body structure which comprises an upper core body coating layer, a lower core body coating layer, an upper fluffy layer, a lower fluffy layer and a glue spraying layer positioned between the lower coating layer and the lower fluffy layer. Each fluffy layer contains two layers of different super absorbent resin particles, and liquid guide grooves with specific quantity and arrangement mode are arranged in the three layers of super absorbent resin particles. The novel composite core structure disclosed by the patent application has the beneficial effects that the wood pulp upper coating layer replaces the traditional core coating materials such as spun-bonded and spunlaced, so that the liquid absorption and liquid guiding speed is effectively improved; the utilization rate of the composite core body can be greatly improved and the liquid absorption performance can be improved by the mode of three-dimensional space staggered combination of the double-fluffy layer framework and the liquid guide groove; and only one-time glue spraying compounding is needed in the production process, so that the production cost is saved.
Description
Technical Field
The invention relates to a composite core body applicable to disposable sanitary products such as adult pull-ups and female menstrual-period pants and belongs to the technical field of disposable sanitary materials.
Background
With the appearance of new products such as adult pull-ups, female menstrual pants, infant toddler pants and the like, the types of disposable sanitary products are gradually increased and improved. The absorption core body is used as the most core structure of the disposable sanitary product, and plays a role in quickly capturing and locking liquid, enhancing the absorption performance of the product and preventing reverse osmosis.
There are two general types of absorbent cores currently available in the market for disposable hygienic products: a core body mixed by fluff pulp and super absorbent resin has the advantages of short forming process, good absorbability and lower cost, but has the defects that the core body is easy to stack and layer after absorbing liquid, thereby influencing the comfort when wearing; the second one is a composite core body composed of non-woven material and high water absorption resin, and the core body is characterized by thin thickness, no lump fault after water absorption, long production process and high cost.
Disclosure of Invention
The invention aims to provide a novel composite core body structure and a preparation method thereof, which not only improve the liquid absorption performance of the core body, but also save the cost.
In order to achieve the purpose, the invention provides a novel composite core body which sequentially comprises an upper coating layer, an upper fluffy layer, a lower fluffy layer, a glue spraying layer and a lower coating layer from top to bottom, and is characterized in that: the upper coating layer and the upper fluffy layer and the fluffy layers are combined together through a hot air penetration process; the lower coating layer and the lower fluffy layer are combined together through glue; each fluffy layer contains at least two layers of super absorbent resin particles.
Further, the upper coating layer is formed by mixing wood pulp and low-melting-point fibers according to a certain proportion, and the surface density of the upper coating layer is 15-30 g/m2The through-air nonwoven material of (1); the wood pulp accounts for 50-85% of the upper coating layer.
Further, the upper fluffy layer and the lower fluffy layer are made of three-dimensional crimped polyester fibers and low-melting-point fibers, and the surface densities of the upper fluffy layer and the lower fluffy layer are 15-35 g/m2The through-air nonwoven material of (1); the three-dimensional crimped polyester fibers account for 15-40% of the fluffy layer.
Furthermore, the upper fluffy layer contains first upper-layer super absorbent resin particles and second upper-layer super absorbent resin particles from top to bottom, and the lower fluffy layer contains first lower-layer super absorbent resin particles and second lower-layer super absorbent resin particles from top to bottom.
Furthermore, the surface density of each layer of super absorbent resin particles is 40-95 g/m2And the three layers are provided with liquid guide grooves in different arrangement modes.
Furthermore, the liquid guide groove in the first upper layer of the super absorbent resin particles is a plurality of blank strip areas which are arranged from top to bottom in parallel at a certain interval; one or only one liquid guide groove vertically downward along the middle of the core body is arranged in the second upper layer of high water-absorbent resin particles; the liquid guide grooves in the first lower-layer super absorbent resin particles are a plurality of continuous bending strips taking the center line of the length direction of the core body as a symmetry axis; the second lower layer of high water absorption resin particles are not provided with a liquid guide groove.
Furthermore, the width of the liquid guide grooves in the first upper layer of high-water-absorptivity resin particles is 1-2 cm, and the distance between the liquid guide grooves is 1-3 cm; the width of the liquid guide groove in the second upper layer of high water absorption resin particles is 2-4 cm; the maximum width of the liquid guide groove in the first lower layer of high-water-absorptivity resin particles is 1-2 cm, the minimum width of the liquid guide groove is 0.5-1 cm, and the distance and the width are the same.
Further, the temperature of the hot air penetration reinforcing process is 100-150 ℃.
Furthermore, the density of the glue spraying layer surface is 2-9 g/m2。
Further, the lower coating layer has an area density of 20-40 g/m2Any of spunbond, hot air, hydroentangled, or needle punched nonwoven materials.
The embodiment of the invention also provides a preparation method of the novel composite core body, which comprises the following steps:
(1) mixing wood pulp and low-melting-point fibers according to a certain proportion by using a wood pulp crushing and fiber mixing and lapping device 6, forming a net and lapping to prepare an upper coating layer fiber web material;
(2) mixing and opening the three-dimensional crimped polyester fibers and the low-melting-point fibers according to a certain proportion, sending the mixture into a carding machine 7 for carding, and respectively outputting materials of a lower fluffy layer and an upper fluffy layer through a doffer of the carding machine 7;
(3) laminating the lower fluffy layer obtained in the step (2) on the upper fluffy layer and covering the upper covering layer obtained in the step (1) to form a combined layer, and conveying the combined layer into a hot air reinforcing oven 8 for thermal bonding and reinforcing;
(4) sequentially conveying the combined layer obtained in the step (3) to the positions below the high-water- absorptivity resin hoppers 9,10, 11 and 12 to spread and spray the first upper layer, the second upper layer, the first lower layer and the second lower layer of high-water-absorptivity resin particles, and then conveying the combined layer to a glue sprayer 13 to spray glue liquid to obtain a new combined layer;
(5) unreeling a lower coating layer coiled material 14 and covering the lower coating layer coiled material on the new combination layer obtained in the step (4) to form a composite core material;
(6) and (5) conveying the composite core material obtained in the step (5) to a winding machine 15 for winding.
Compared with the existing composite core, the composite core has the advantages that: the upper coating layer uses a wood pulp layer to replace the traditional spun-bonded and spunlaced layers, and the liquid absorption rate and the liquid drainage rate are both improved; the lower coating layer and the fluffy layer are directly combined together through hot air, so that the use amount of glue solution is reduced, and the production cost is saved; the design of the double-fluffy layer framework and the mode of the three-dimensional space staggered combination of the liquid guide groove enable the super absorbent resin particles to be better dispersed in the core body, reduce the occurrence of gel blocking phenomenon to a certain extent, and have high liquid infiltration rate and absorption rate and high core body utilization rate.
Drawings
FIG. 1 is a schematic structural view of the novel composite core of the present invention;
in the figure, 1, an upper coating layer; 2, lower coating layer; 3, arranging a fluffy layer; 31-first upper superabsorbent polymer particles; 311-first upper liquid guide groove; 32-second upper layer super absorbent resin particles; 321-a second upper liquid guide groove; 4-lower fluffy layer; 41-first lower superabsorbent resin particles; 411-first lower layer liquid guide groove; 42-second lower superabsorbent resin particles; and 5, spraying the glue layer.
FIG. 2 is a first upper superabsorbent resin particle arrangement;
FIG. 3 is a second upper superabsorbent polymer particle arrangement;
FIG. 4 is a first lower superabsorbent resin particle arrangement;
FIG. 5 is a second lower superabsorbent resin particle arrangement;
FIG. 6 is a schematic view of a process for making the novel composite core of the present invention;
in the figure 6-a wood pulp crushing and fiber mixing lapping device; 7, carding machine; 8, reinforcing the oven by hot air; 9,10, 11, 12-super absorbent resin hopper; 13-glue sprayer; 14-lower coating layer coiled material; 15, a winding machine.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, which are not intended to limit the scope of the present invention.
Example 1
The novel composite core body is applied to disposable hygienic products and comprises an upper coating layer 1, an upper fluffy layer 3, a lower fluffy layer 4, a glue spraying layer 5 and a lower coating layer 2; the upper coating layer 1 has an area density of 15g/m2And a hot air nonwoven material containing 50% wood pulp; the upper fluffy layer 3 and the lower fluffy layer 4 have the surface density of 55g/m2And the hot air non-woven material contains 15 percent of three-dimensional crimped terylene, and the surface density of the glue spraying layer 5 is 2g/m2(ii) a The lower cladding layer 2 has an area density of 20g/m2A spunbond nonwoven material of; wherein the surface density of each layer of super absorbent resin particles contained in the fluffy layer is 40g/m2The width of the first upper layer liquid guiding groove 311 in the first upper layer super absorbent resin particles 31 is 1cm, the distance is 1cm, the width of the second upper layer liquid guiding groove 321 in the second upper layer super absorbent resin particles 32 is 2cm, the maximum width of the first lower layer liquid guiding groove 411 in the first lower layer super absorbent resin particles 41 is 1cm, and the minimum width is 0.5 cm; the temperature of the hot air consolidation oven was 130 ℃.
Example 2
The novel composite core body is applied to disposable hygienic products and comprises an upper coating layer 1, an upper fluffy layer 3, a lower fluffy layer 4, a glue spraying layer 5 and a lower coating layer 2; the upper cladding layer 1 has an area density of 30g/m2And a through-air nonwoven material containing 85% wood pulp; the upper fluffy layer 3 and the lower fluffy layer 4 have the surface density of 35g/m2And the hot air non-woven material containing 30 percent of three-dimensional crimped terylene has 5-surface-dense glue spraying layerDegree of 9g/m2(ii) a The lower cladding layer 2 has an areal density of 40g/m2The spunlace nonwoven material of (a); wherein the surface density of each layer of super absorbent resin particles contained in the fluffy layer is 50g/m2The width of the first upper layer liquid guiding groove 311 in the first upper layer super absorbent resin particles 31 is 2cm, the distance is 2cm, the width of the second upper layer liquid guiding groove 321 in the second upper layer super absorbent resin particles 32 is 4cm, the maximum width of the first lower layer liquid guiding groove 411 in the first lower layer super absorbent resin particles 41 is 2cm, and the minimum width is 1 cm; the temperature of the hot air consolidation oven was 150 ℃.
The two types of composite cores prepared in the two embodiments are subjected to performance tests, and a comparative test is a common composite core which uses hydrophilic polyester spunlace as an upper coating layer and a lower coating layer, does not have a guide groove in a fluffy layer, and is uniformly sprayed with super absorbent resin particles.
| Detecting items | Example 1 | Example 2 | Comparative example |
| Water saturation ratio | 36 | 40.5 | 29.5 |
| Water locking multiplying power | 25 | 29 | 22 |
| Reverse osmosis (g) | 0.27 | 0.18 | 0.69 |
| First absorption Rate(s) | 15 | 12 | 20 |
| Second absorption Rate(s) | 22 | 18 | 31 |
The above results show that the composite core of the present invention has a faster liquid absorption rate and a lower rewet amount, i.e., superior absorption performance, compared to the conventional composite core.
Claims (11)
1. The utility model provides a novel composite core, top-down include in proper order that upper cladding layer, last fluffy layer, fluffy layer down, spout glue film and lower cladding layer, its characterized in that: the upper coating layer and the upper fluffy layer and the fluffy layers are combined together through a hot air penetration process; the lower coating layer and the lower fluffy layer are combined together through glue; each fluffy layer contains at least two layers of super absorbent resin particles.
2. The novel composite core as claimed in claim 1, wherein the upper coating layer is formed by mixing wood pulp and low-melting-point fiber according to a certain proportion and has an areal density of 15-30 g/m2The through-air nonwoven material of (1); the wood pulp accounts for 50-85% of the upper coating layer.
3. A novel composite core as claimed in claim 1, whereinThe upper fluffy layer and the lower fluffy layer are made of three-dimensional crimped polyester fibers and low-melting-point fibers, and the surface densities of the upper fluffy layer and the lower fluffy layer are 15-35 g/m2The through-air nonwoven material of (1); the three-dimensional crimped polyester fibers account for 15-40% of the fluffy layer.
4. The composite core of claim 1, wherein the upper loft layer comprises a first upper layer of superabsorbent particles and a second upper layer of superabsorbent particles from top to bottom, and the lower loft layer comprises a first lower layer of superabsorbent particles and a second lower layer of superabsorbent particles from top to bottom.
5. The novel composite core according to claim 1, wherein the areal density of each layer of superabsorbent polymer particles is 40 to 95g/m2And the three layers are provided with liquid guide grooves in different arrangement modes.
6. The novel composite core body as claimed in claim 5, wherein the liquid guiding grooves in the first upper layer of super absorbent resin particles are a plurality of blank strip areas arranged from top to bottom in parallel at certain intervals; one or only one liquid guide groove vertically downward along the middle of the core body is arranged in the second upper layer of high water-absorbent resin particles; the liquid guide grooves in the first lower-layer super absorbent resin particles are a plurality of continuous bending strips taking the center line of the length direction of the core body as a symmetry axis; the second lower layer of high water absorption resin particles are not provided with a liquid guide groove.
7. The novel composite core according to claim 6, wherein the width of the drainage grooves in the first upper layer of super absorbent resin particles is 1-2 cm, and the distance between the drainage grooves is 1-3 cm; the width of the liquid guide groove in the second upper layer of high water absorption resin particles is 2-4 cm; the maximum width of the liquid guide groove in the first lower layer of high-water-absorptivity resin particles is 1-2 cm, the minimum width of the liquid guide groove is 0.5-1 cm, and the distance and the width are the same.
8. The novel composite core according to claim 1, wherein the temperature of the through-air consolidation process is 100 to 150 ℃.
9. The novel composite core according to claim 1, wherein the sprayed rubber layer has a density of 2 to 9g/m2。
10. The novel composite core according to claim 1, wherein the lower cladding layer has an areal density of 20 to 40g/m2Any of spunbond, hot air, hydroentangled, or needle punched nonwoven materials.
11. A method of making a composite core according to any of claims 1 to 10, comprising the steps of:
(1) mixing wood pulp and low-melting-point fibers according to a certain proportion by using a wood pulp crushing and fiber mixing and lapping device 6, forming a net and lapping to prepare an upper coating layer fiber web material;
(2) mixing and opening the three-dimensional crimped polyester fibers and the low-melting-point fibers according to a certain proportion, sending the mixture into a carding machine 7 for carding, and respectively outputting materials of a lower fluffy layer and an upper fluffy layer through a doffer of the carding machine 7;
(3) laminating the lower fluffy layer obtained in the step (2) on the upper fluffy layer and covering the upper covering layer obtained in the step (1) to form a combined layer, and conveying the combined layer into a hot air reinforcing oven 8 for thermal bonding and reinforcing;
(4) sequentially conveying the combined layer obtained in the step (3) to the positions below the high-water-absorptivity resin hoppers 9,10, 11 and 12 to spread and spray the first upper layer, the second upper layer, the first lower layer and the second lower layer of high-water-absorptivity resin particles, and then conveying the combined layer to a glue sprayer 13 to spray glue liquid to obtain a new combined layer;
(5) unreeling a lower coating layer coiled material 14 and covering the lower coating layer coiled material on the new combination layer obtained in the step (4) to form a composite core material;
(6) and (5) conveying the composite core material obtained in the step (5) to a winding machine 15 for winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073596.8A CN112914835A (en) | 2021-01-20 | 2021-01-20 | Novel composite core and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110073596.8A CN112914835A (en) | 2021-01-20 | 2021-01-20 | Novel composite core and preparation method thereof |
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| Publication Number | Publication Date |
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| CN112914835A true CN112914835A (en) | 2021-06-08 |
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| CN202110073596.8A Pending CN112914835A (en) | 2021-01-20 | 2021-01-20 | Novel composite core and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109431692A (en) * | 2018-12-11 | 2019-03-08 | 湖南康程护理用品有限公司 | A kind of absorptive core and production method |
| CN209075172U (en) * | 2018-03-29 | 2019-07-09 | 泉州市汉奇卫生材料有限公司 | A kind of modified compound core body |
| CN110179593A (en) * | 2019-07-08 | 2019-08-30 | 广东佳丝维新材料科技有限公司 | Super soft liquid absorbent wick and its preparation system and technique |
| CN209437511U (en) * | 2018-10-19 | 2019-09-27 | 韩顺(厦门)卫生用品有限公司 | A kind of composite absorbent core equipped with absorption weakening region |
| CN210096101U (en) * | 2019-03-15 | 2020-02-21 | 广东昱升个人护理用品股份有限公司 | Composite core and absorption article |
| CN210096102U (en) * | 2019-03-15 | 2020-02-21 | 广东昱升个人护理用品股份有限公司 | Composite core material with high water-absorbent resin in velocity difference gradient layered distribution and absorption article thereof |
-
2021
- 2021-01-20 CN CN202110073596.8A patent/CN112914835A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209075172U (en) * | 2018-03-29 | 2019-07-09 | 泉州市汉奇卫生材料有限公司 | A kind of modified compound core body |
| CN209437511U (en) * | 2018-10-19 | 2019-09-27 | 韩顺(厦门)卫生用品有限公司 | A kind of composite absorbent core equipped with absorption weakening region |
| CN109431692A (en) * | 2018-12-11 | 2019-03-08 | 湖南康程护理用品有限公司 | A kind of absorptive core and production method |
| CN210096101U (en) * | 2019-03-15 | 2020-02-21 | 广东昱升个人护理用品股份有限公司 | Composite core and absorption article |
| CN210096102U (en) * | 2019-03-15 | 2020-02-21 | 广东昱升个人护理用品股份有限公司 | Composite core material with high water-absorbent resin in velocity difference gradient layered distribution and absorption article thereof |
| CN110179593A (en) * | 2019-07-08 | 2019-08-30 | 广东佳丝维新材料科技有限公司 | Super soft liquid absorbent wick and its preparation system and technique |
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