CN108158728A - A kind of absorptive core and its production equipment in more individual absorption areas - Google Patents
A kind of absorptive core and its production equipment in more individual absorption areas Download PDFInfo
- Publication number
- CN108158728A CN108158728A CN201711132833.3A CN201711132833A CN108158728A CN 108158728 A CN108158728 A CN 108158728A CN 201711132833 A CN201711132833 A CN 201711132833A CN 108158728 A CN108158728 A CN 108158728A
- Authority
- CN
- China
- Prior art keywords
- blanking
- absorptive core
- roller
- roller group
- individual absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
-
- 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
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
- A61F2013/15878—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding by thermal bonding
Abstract
The present invention relates to a kind of absorptive cores in more individual absorption areas, its surface layer is sealed by Non-woven fabric ultrasonic wave, and inner homogeneous sets multiple mutually independent absorption blocks, forms the continuous absorbing strip of plural item, it absorbs block per adjacent three to arrange in triangle disposition, the number of absorbing strip is 35；A kind of production equipment of the absorptive core in above-mentioned more individual absorption areas, including the first discharge roller being successively set in rack, lower feed box, bond roller group, hot pressing mechanism and compacting roller group, rack between lower feed box and bonding roller group is equipped with the second discharge roller, glue-spraying mechanism is equipped with positioned at the output of first discharge roller and the second discharge roller, blanking roller group is installed in the rack below the lower feed box, the blanking roller group includes blanking upper roller and blanking lower roll, the circumferential outer surface of the blanking upper roller uniformly opens up a plurality of blanking grooves for being used to receive lower feed box output material, it arranges per the adjacent three blanking grooves in triangle disposition.
Description
Technical field
The present invention relates to hygiene article sectors, and in particular to a kind of absorptive core in more individual absorption areas and its production are set
It is standby.
Background technology
The production of existing disposable sanitary articles is with nonwoven layer, toilet paper, Time of Fluff Slurry, macromolecule water uptake mostly
The materials such as resin, PE films, rubber band are made.Wherein, by taking paper diaper product as an example, basic structure such as the applicant's earlier application
Chinese patent CN204274804U shown in, including week along the liquid permeability face layer being integrally connected, opaque liquid bottom and be set on
Absorber between the two, the liquid permeability face layer are fixedly arranged on dredging for hydrophilic nonwoven fabrics both lateral sides by hydrophilic nonwoven fabrics and respectively
Water non-woven fabrics forms, and is equipped between the hydrophobic nonwoven of the paper diaper both lateral sides and opaque liquid bottom and prolongs along longitudinal direction
The calf circumference rubber root stretched.And as the absorber of paper diaper core, shape is mostly formed by high hydroscopic resin and various natural fibers
Into integral structure or multilayered structure, only there are one individual absorption region, absorption region is smaller, in face of large area
For liquid into fashionable, good absorption can not be accomplished by relying solely on material property, and such as increase absorptive core area, then can be improved
Production cost.
Traditional disposable sanitary articles are in production, generally first by high hydroscopic resin (SAP) uniform adhesion in base fabric,
Compacting is fastened by roll shaft again.
Invention content
Therefore, in view of the above-mentioned problems, the present invention provides a kind of suction of good absorption effect, cost-effective more individual absorption areas
Core is received, and its production equipment is provided.
In order to achieve the above objectives, the present invention is achieved by the following technical solutions：
A kind of absorptive core in more individual absorption areas, surface layer are sealed by Non-woven fabric ultrasonic wave, and inner homogeneous is set
Multiple mutually independent absorption blocks are put, form the continuous absorbing strip of plural item, block is absorbed per adjacent three and is arranged in triangle disposition.
Preferably, the number of the absorbing strip is 3-5 items.
Preferably, one or two broken line for each absorbing strip to be turned down is set on the absorptive core.
Preferably, the broken line is one, and absorptive core is divided into equal sized two parts.
Preferably, the broken line is two, and absorptive core is divided into upper absorbed layer, middle absorbed layer and lower absorbed layer, institute
State absorbed layer, the length of lower absorbed layer is respectively less than or the length equal to middle absorbed layer, and the upper absorbed layer, lower absorbed layer
Length is all higher than the half of the middle absorbed layer length.
Preferably, the shape for absorbing block is rectangle, circle or regular hexagon.
A kind of production equipment of the absorptive core in above-mentioned more individual absorption areas, first including being successively set in rack goes out
Expect roller, lower feed box, bonding roller group, hot pressing mechanism and compacting roller group, set in the rack between the lower feed box and bonding roller group
There is the second discharge roller, glue-spraying mechanism is equipped with positioned at the output of first discharge roller and the second discharge roller, under described
Blanking roller group is installed, the blanking roller group includes blanking upper roller and blanking lower roll, the blanking in the rack below hopper
The circumferential outer surface of upper roller uniformly opens up a plurality of blanking grooves for being used to receive lower feed box output material, described in per adjacent three
Blanking groove is arranged in triangle disposition.
Preferably, the blanking lower roll coats the soft roller of elastic material for outer surface, positioned at the institute of each blanking groove outer rim
Blanking upper roller is stated equipped with trim ring.
Preferably, the lower feed box bottom above each blanking groove opens up a plurality of feed openings, the feed opening
Width be less than blanking groove width.
Preferably, one is further included for shutting out the crimping roller group for the broken line for turning down absorptive core.
By using preceding solution, the beneficial effects of the invention are as follows：The present invention uses the knot of multiple individual absorption blocks
Configuration formula, improves structure, increases absorbing surface on the basis of core material dosage is reduced, improves absorption efficiency；It is tying
In strip on structure, streamlined production is easy to implement, improves production efficiency, and be applicable to the product of sizes requirement；It is logical
Setting broken line is crossed, original individual layer core is become into multilayer, it, can not only be into the product requirement applied to high-hydroscopicity
One step reduces core materials, and being formed in structure, there is solid to receive space, reduces heap of the liquid in surface of sanitary
Product improves the comfort of dress；According to Product Requirement Design broken line, core can be divided into double-deck or three-decker, and core
Middle part is more thick and solid, and a large amount of liquid also can adequately be absorbed；
Production equipment provided by the present invention is in running, by independent blanking groove, after lower feed box discharging under
Expect groove storage material, with the running of blanking roller group, material is regularly fallen on the non-woven fabrics of transmission；Pass through trim ring and blanking
The cooperation of lower roll, extrudes a recessed section for being used for packing material on the non-woven fabrics of transmission, and material more falls into the area
In, subsequently after hot pressing mechanism is acted on compacting roller group, and then form independent absorption block at recessed section herein, reach
To production purpose.
Description of the drawings
Fig. 1 is the surface texture schematic diagram of the embodiment of the present invention one；
Fig. 2 is schematic cross-sectional view after being turned down in the embodiment of the present invention one；
Fig. 3 is schematic cross-sectional view after one another location broken line fold of the embodiment of the present invention；
Fig. 4 is two structure diagram of the embodiment of the present invention；
Fig. 5 is the structure diagram of production equipment of the present invention；
Fig. 6 is blanking upper roller of the present invention and lower feed box structure diagram；
Fig. 7 is material blanking roller structure diagram of the present invention.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to specific embodiment, how skill is applied to the present invention whereby
Art means solve technical problem, and the realization process for reaching technique effect can fully understand and implement according to this.
Embodiment one
With reference to figure 1 and Fig. 2, a kind of absorptive core in more individual absorption areas, surface layer is sealed by Non-woven fabric ultrasonic wave,
The multiple mutually independent absorption blocks 1 of its inner homogeneous setting, form the continuous absorbing strip 2 of plural item, the absorption block 1 per adjacent three
It arranges in triangle disposition, as shown in A in Fig. 1.
In the present embodiment, the number of the absorbing strip 2 is 4, but the number of absorbing strip 2 can be according to actual production demand tune
Whole, minimum 3, at most can be 5.
One broken line 3 for each absorbing strip 2 to be turned down is set in the present embodiment, on the absorptive core, by absorbent cores
Body is divided into equal sized two parts.According to the broken line 3, absorptive core progress equidimension is folded to form double-layer structure,
It is formed between each absorption block 1 and has hollow region B as shown in Figure 2.
Again as shown in figure 3, the position of broken line 3 is varied from this time, the shape of hollow region B changes, at this time up and down
1 position of block that absorbs on two layers of absorbed layer has certain dislocation, this is in structure so that absorbing the absorption that block 1 is contacted with liquid
Surface area further becomes larger, and also enhances assimilation effect to a certain extent.
Embodiment two
With reference to figure 4, for the present embodiment compared with embodiment one, the broken line is two, and absorptive core is divided into upper absorbed layer
A, middle absorbed layer b and lower absorbed layer c, the upper absorbed layer a, lower absorbed layer c length be respectively less than in absorbed layer b length,
And the length of the upper absorbed layer a, lower absorbed layer c are all higher than the half of the middle absorbed layer b length.This kind of structure,
After two folding lines, subregion is had in the middle part of absorptive core as three-decker, both sides are then double-layer structure, between each layer
Hollow region B is provided with, it is whole more thick and solid, there can be the uptake of bigger, there is good absorption.
Meanwhile when upper absorbed layer a, the length of lower absorbed layer c and middle absorbed layer b equal lengths, absorptive core is whole all
For three-decker.
Absorption block 1 of the present invention is rectangle, but round or regular hexagon etc. can also be used in the shape for absorbing block 1.
Meanwhile the present invention also provides a kind of production equipment of the absorptive core in above-mentioned more individual absorption areas, with reference to figure 5,
Including discharge roller 11, lower feed box 12, bonding roller group 13, hot pressing mechanism 14 and the compacting roller group being successively set in rack
15, the rack between the lower feed box 12 and bonding roller group 13 is equipped with discharge roller 19, positioned at the discharge roller 11 and discharge roller 19
Output be equipped with glue-spraying mechanism 16, production when, discharge roller 11, output non-woven fabrics, after 16 glue spraying of glue-spraying mechanism, connect
The absorbent core material of the output of hopper 12 is accepted, non-woven fabrics exported with discharge roller 19, after 16 glue spraying of glue-spraying mechanism is viscous
It closes roller group 13 to bond, seals by hot pressing mechanism 14, be finally compacted by compacting roller group 15.Hot pressing mechanism used in the present embodiment
14 be ultrasonic wave heat-sealing machine.
In the present embodiment, blanking roller group 17, the blanking roller group are installed in the rack of 12 lower section of lower feed box
17 include blanking upper roller 171 and blanking lower roll 172, with reference to Fig. 6, Fig. 7, the circumferential outer surface of the blanking upper roller 171
A plurality of blanking grooves 173 for being used to receive the output material of lower feed box 12 are uniformly opened up, per the adjacent three blanking grooves 173
It arranges in triangle disposition, triangle disposition arrangement herein is specially circumferential outer surface of each blanking groove 173 along blanking upper roller 171
It is divided into four groups, is interspersed between each group；The blanking lower roll 172 coats the soft roller of elastic material for outer surface, under each
Expect that the blanking upper roller 171 of 173 outer rim of groove is equipped with trim ring 174, the trim ring 174 cooperates with blanking lower roll 172,
Purpose is to shut out the recessed section being adapted with 173 shape of blanking groove on the non-woven fabrics of transmission, enable at this
Enough storages are more to absorb core material, and then formed after follow-up heat sealing and absorb 1 region of block.
In the present embodiment, 12 bottom of the lower feed box above each blanking groove 173 opens up four feed openings 121,
The width of the feed opening 121 is less than the width of blanking groove 173, this is allowed in 12 blanking of lower feed box, pre- by lower feed box
Core material interval blanking will be first absorbed, can be reduced after partition and absorb core material waste, while the absorption core material for ensureing to absorb 1 region of block fills
Foot, meets production requirement.
In the present embodiment, one is further included for shutting out the crimping roller group 18 for the broken line for turning down absorptive core, the crimping
One or two briquetting is set according to product demand in roller group 18.
It is of the present invention to bond roller group 13, compacting roller group 15 and crimping roller group 18, it is those skilled in the art's energy
Enough directly, being no different free burial ground for the destitute knows its structure, does not repeat herein.
The present invention improves structure, in the base for reducing core material dosage using the structure type of multiple individual absorption blocks
Absorbing surface is increased on plinth, improves absorption efficiency；In strip in structure, streamlined production is easy to implement, improves production effect
Rate, and it is applicable to the product of sizes requirement；By setting broken line, original individual layer core is become into multilayer,
In the product requirement applied to high-hydroscopicity, core materials, but also the shape in structure can not only be further reduced by not only reducing
Space is received into solid, reduces accumulation of the liquid in surface of sanitary, improves the comfort of dress；According to product demand
Broken line is designed, core can be divided into double-deck or three-decker, and more thick and solid in the middle part of core, a large amount of liquid can also be filled
The absorption divided.
Production equipment provided by the present invention is in running, by independent blanking groove, after lower feed box discharging under
Expect groove storage material, with the running of blanking roller group, material is regularly fallen on the non-woven fabrics of transmission；Pass through trim ring and blanking
The cooperation of lower roll, extrudes a recessed section for being used for packing material on the non-woven fabrics of transmission, and material more falls into the area
In, subsequently after hot pressing mechanism is acted on compacting roller group, and then form independent absorption block at recessed section herein, reach
To production purpose.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention that the appended claims are limited, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of absorptive core in more individual absorption areas, surface layer are sealed by Non-woven fabric ultrasonic wave, it is characterised in that：In it
Portion is uniformly arranged multiple mutually independent absorption blocks, forms the continuous absorbing strip of plural item, and it is in " product " that block is absorbed per adjacent three
Font is arranged.
2. the absorptive core in more individual absorption areas according to claim 1, it is characterised in that：The number of the absorbing strip is
3-5 items.
3. the absorptive core in more individual absorption areas according to claim 2, it is characterised in that：It is set on the absorptive core
One or two broken line for each absorbing strip to be turned down.
4. the absorptive core in more individual absorption areas according to claim 3, it is characterised in that：The broken line is one, will
Absorptive core is divided into equal sized two parts.
5. the absorptive core in more individual absorption areas according to claim 3, it is characterised in that：The broken line is two, will
Absorptive core is divided into absorbed layer, middle absorbed layer and lower absorbed layer, the upper absorbed layer, lower absorbed layer length be respectively less than or
Length equal to the length of middle absorbed layer, and the upper absorbed layer, lower absorbed layer is all higher than two points of the middle absorbed layer length
One of.
6. the absorptive core in more individual absorption areas according to any one of claim 1-5 claims, it is characterised in that：
The shape for absorbing block is rectangle, circle or regular hexagon.
7. a kind of production equipment of the absorptive core in more individual absorption areas according to the claims 1, it is characterised in that：
It is described including the first discharge roller, lower feed box, bonding roller group, hot pressing mechanism and the compacting roller group being successively set in rack
Rack between lower feed box and bonding roller group is equipped with the second discharge roller, positioned at the output of first discharge roller and the second discharge roller
Glue-spraying mechanism is equipped at end, blanking roller group is installed in the rack below the lower feed box, under the blanking roller group includes
Expect upper roller and blanking lower roll, the circumferential outer surface of the blanking upper roller uniformly opens up a plurality of for receiving lower feed box output material
The blanking groove of material is arranged per the adjacent three blanking grooves in triangle disposition.
8. the production equipment of the absorptive core in more individual absorption areas according to claim 7, it is characterised in that：The blanking
Lower roll coats the soft roller of elastic material for outer surface, and the blanking upper roller positioned at each blanking groove outer rim is equipped with trim ring.
9. the production equipment of the absorptive core in more individual absorption areas according to claim 7 or 8, it is characterised in that：It is located at
The lower feed box bottom above each blanking groove opens up a plurality of feed openings, and the width of the feed opening is less than blanking groove
Width.
10. the production equipment of the absorptive core in more individual absorption areas according to claim 7 or 8, it is characterised in that：Also wrap
One is included for shutting out the crimping roller group for the broken line for turning down absorptive core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132833.3A CN108158728A (en) | 2017-11-15 | 2017-11-15 | A kind of absorptive core and its production equipment in more individual absorption areas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132833.3A CN108158728A (en) | 2017-11-15 | 2017-11-15 | A kind of absorptive core and its production equipment in more individual absorption areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108158728A true CN108158728A (en) | 2018-06-15 |
Family
ID=62527450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711132833.3A Pending CN108158728A (en) | 2017-11-15 | 2017-11-15 | A kind of absorptive core and its production equipment in more individual absorption areas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108158728A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141424A (en) * | 2019-05-31 | 2019-08-20 | 广东茵茵股份有限公司 | A kind of production method for the multiple fold paper diaper being applicable to outdoor activities |
| CN110341243A (en) * | 2019-06-21 | 2019-10-18 | 爹地宝贝股份有限公司 | A kind of paper diaper with highly-breathable |
| CN112603659A (en) * | 2020-12-29 | 2021-04-06 | 露乐健康科技(广州)股份有限公司 | Absorption inner core, absorption core body, and preparation method and application of absorption core body |
| CN112674944A (en) * | 2020-12-30 | 2021-04-20 | 泉州市汉威机械制造有限公司 | Method for forming ultrathin absorption core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141424A (en) * | 2019-05-31 | 2019-08-20 | 广东茵茵股份有限公司 | A kind of production method for the multiple fold paper diaper being applicable to outdoor activities |
| CN110141424B (en) * | 2019-05-31 | 2022-03-29 | 广东茵茵股份有限公司 | Production method of multi-folding paper diaper applicable to outdoor activities |
| CN110341243A (en) * | 2019-06-21 | 2019-10-18 | 爹地宝贝股份有限公司 | A kind of paper diaper with highly-breathable |
| CN110341243B (en) * | 2019-06-21 | 2021-08-03 | 爹地宝贝股份有限公司 | Paper diaper with high air permeability |
| CN113520726A (en) * | 2019-06-21 | 2021-10-22 | 爹地宝贝股份有限公司 | Paper diaper with good moisture insulation effect and high air permeability |
| CN112603659A (en) * | 2020-12-29 | 2021-04-06 | 露乐健康科技(广州)股份有限公司 | Absorption inner core, absorption core body, and preparation method and application of absorption core body |
| CN112603659B (en) * | 2020-12-29 | 2024-03-29 | 露乐健康科技股份有限公司 | Absorbent core, absorbent core body and preparation method and application of absorbent core body |
| CN112674944A (en) * | 2020-12-30 | 2021-04-20 | 泉州市汉威机械制造有限公司 | Method for forming ultrathin absorption core |
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Application publication date: 20180615 |
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| RJ01 | Rejection of invention patent application after publication |