CN112641565A - Composite core and manufacturing method thereof - Google Patents
Composite core and manufacturing method thereof Download PDFInfo
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- CN112641565A CN112641565A CN201910960773.7A CN201910960773A CN112641565A CN 112641565 A CN112641565 A CN 112641565A CN 201910960773 A CN201910960773 A CN 201910960773A CN 112641565 A CN112641565 A CN 112641565A
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- composite core
- fibers
- absorbent resin
- manufacturing
- super absorbent
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Classifications
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- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
-
- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53743—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the position of the layer relative to the other layers
-
- 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
- A61F13/537—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/5376—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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
-
- 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
- A61F2013/530489—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 being randomly mixed in with other material
Abstract
The invention discloses a composite core body and a manufacturing method thereof, and relates to the technical field of composite core bodies. This composite core, including upper strata, middle level and lower floor, the material of upper strata and lower floor is dust-free paper, non-woven fabrics or spunlace, the middle level is located between upper strata and the lower floor, the middle level includes unordered fibre, be provided with the longitude and latitude net twine on the unordered fibre. This composite core and manufacturing method thereof, through the improvement on middle level, the middle level is fixed and is made through the graticule for unordered fibre, there is certain hole in the fibre, thereby make have sufficient space can expand after the super absorbent resin imbibition, consequently the condition that the viscose blockked up can not take place and influence many times imbibition nature, simultaneously the core also can not appear sticking together, the condition of fault, and simultaneously, use through the graticule line, the material that has certain water conservancy diversion effect of cooperation process certain carding mode of while making, can promote the diffusion water conservancy diversion nature between layer, be favorable to the core to absorb many times.
Description
Technical Field
The invention relates to the technical field of composite cores, in particular to a composite core and a manufacturing method thereof.
Background
The structures of disposable sanitary products such as paper diapers and sanitary napkins are well known, and the disposable sanitary products generally comprise a liquid-permeable surface layer, a liquid-impermeable bottom layer and an absorption core arranged between the liquid-permeable surface layer and the liquid-impermeable bottom layer, the existing absorption core generally comprises wood pulp and high-molecular water-absorbent resin wrapped by non-woven fabrics or toilet paper, after water absorption, the flow guide effect in the core body is weakened due to the fact that the high-molecular water-absorbent resin expands the wood pulp and is dispersed, the absorption effect is weakened, particularly after multiple times of absorption, the effect is obviously weakened, and reverse osmosis is easy to occur.
In the common composite core body in the market, the uppermost layer and the lowermost layer are generally dust-free paper, non-woven fabric or spunlace fabric, the middle layer is non-woven fabric, and two layers of super absorbent resin are sandwiched between the uppermost layer, the lowermost layer and the middle layer. This type of core intermediate level generally is fluffy non-woven fabrics, and super absorbent resin directly broadcasts the distribution in the both sides of fluffy non-woven fabrics and in the middle of the fluffy non-woven fabrics of part embedding, and this type of structural upper water absorbent resin easily takes place the viscose reaction and blocks up for the liquid permeability of product is not good, and it is slow to absorb liquid infiltration speed many times, and diffusion length is short, and core overall utilization is relatively poor, easily takes place the urine leakage condition when leading to imbibition many times.
In addition, a common cotton core is also available in the market, generally, super absorbent resin is mixed and broadcast in wood pulp fibers, but the super absorbent resin of the core and the wood pulp are formed by grinding wheels after being adsorbed by negative pressure, the wood pulp fibers and the super absorbent resin are not reinforced, the core part is easy to lump after absorbing liquid, the wearing comfort of a baby is influenced, particularly, the movement amount of the baby is increased for a baby over half year old, and the core is easy to cause fault displacement after use, so that urine leakage is caused because no absorbent exists.
Meanwhile, the whole core body manufactured by the existing wood pulp core body process is thicker, and even if the core body is thinned by a smooth pressing roller or a patterned roller, the product can also generate hard blocks, so that the use comfort is reduced.
Disclosure of Invention
The invention provides a composite core and a manufacturing method thereof, and solves the problems that in the prior art, the composite core or a cotton core is poor in liquid permeability, slow in infiltration speed after liquid is absorbed for multiple times, short in diffusion length, poor in overall utilization rate of the core, prone to lumping at the core part after liquid is absorbed, and prone to affecting the wearing comfort of infants, prone to causing core fault displacement after the liquid is absorbed, and prone to urine leakage and prone to generating hard blocks due to the fact that no absorbent exists.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a composite core, includes upper strata, middle level and lower floor, the material of upper strata and lower floor is dust-free paper, non-woven fabrics or spunlace, the middle level is located between upper strata and the lower floor, the middle level includes unordered fibre, be provided with the longitude and latitude net twine on the unordered fibre.
Preferably, one or more layers of super absorbent resin and fiber mixture are arranged above and below the middle layer.
Preferably, the random fibers are made via different types of carding.
Preferably, the disordered fibers and the warp and weft thread materials can be natural fibers or artificial fibers, and can be short fibers or long fibers.
A manufacturing method of a composite core body comprises the composite core body, and comprises the following specific steps:
s1, manufacturing an upper layer, a lower layer and a graticule, and preparing super absorbent resin and disordered fibers carded by a certain type;
s2, paving the lower layer in the working space, and gluing the upper surface of the lower layer;
s3, spreading super absorbent resin on the upper surface of the lower layer after sizing;
s4, compounding the random fibers on the front surface of the material obtained in the step S3 and fixing the random fibers through graticules;
s5, spreading super absorbent resin on the front surface of the material obtained in the step S4;
s6, laminating the upper layer on the front surface of the material obtained in the step S5.
Preferably, in step S3, the super absorbent resin may be continuously or intermittently applied.
Preferably, in step S4, the random fibers are fixed by the warp and weft threads and then the compounding operation is performed.
Through implementing above technical scheme, have following technological effect: the invention provides a composite core and a manufacturing method thereof, wherein the middle layer is improved and is made of disordered fibers fixed by a graticule, and certain pores exist in the fibers, so that a high water-absorbent resin has enough space for expansion after imbibing liquid, and therefore, the situation of viscose blockage which influences the multiple liquid absorption cannot occur, and meanwhile, the core cannot generate the situations of lump and fault. According to the composite core and the manufacturing method thereof, the graticule is used, and materials with certain flow guiding effect are made in a certain carding mode, so that the diffusion flow guiding property between layers can be improved, and the core can be absorbed for multiple times.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of an upper layer of the present invention;
FIG. 3 is a schematic structural diagram of a conventional composite core in the prior art;
fig. 4 is a schematic structural diagram of a cotton core in the prior art.
In the figure: 1. an upper layer; 2. a super absorbent resin; 3. non-woven fabrics; 4. a lower layer; 5. wood pulp; 6. a middle layer; 61. disordered fibres; 62. a graticule.
Detailed Description
In order to better understand the technical scheme of the invention, the following detailed description is made on the embodiments provided by the invention in combination with the accompanying drawings.
The embodiment of the invention provides a technical scheme that: as shown in fig. 1-4, a composite core body comprises an upper layer 1, a middle layer 6 and a lower layer 4, wherein one or more layers of super absorbent resin 2 or mixture of super absorbent resin 2 and fiber are arranged above and below the middle layer 6, the upper layer 1 and the lower layer 4 are made of dust-free paper, non-woven fabric or spunlace, the middle layer 6 is arranged between the upper layer 1 and the lower layer 4, the middle layer 6 comprises disordered fiber 61, the disordered fiber 61 and the warp and weft net thread 62 are made of natural fiber or artificial fiber and can be short fiber or long fiber, the warp and weft net thread 62 is arranged on the disordered fiber 61, and the disordered fiber 61 is made by carding in different types.
The embodiment of the invention also provides a manufacturing method of the composite core body, which comprises the following steps:
s1, manufacturing an upper layer 1, a lower layer 4 and a graticule 62, and preparing a super absorbent resin 2 and disordered fibers 61 carded by a certain type;
s2, paving the lower layer 4 in the working space, and gluing the upper surface of the lower layer 4;
s3, spreading the super absorbent resin 2 on the upper surface of the lower layer 4 after glue application, wherein the spreading of the super absorbent resin 2 can be continuous spreading or discontinuous spreading;
s4, compounding the disordered fibers 61 on the front surface of the material obtained in the step S3 and fixing the disordered fibers by the graticule 62, wherein the disordered fibers 61 are fixed by the graticule 62, and then compounding is carried out;
s5, spreading super absorbent resin 2 on the front surface of the material obtained in step S4;
s6, the upper layer 1 is laminated on the front surface of the material obtained in the step S5.
In the above embodiment, in other embodiments, further, the middle layer 6 is provided with the disordered fibers 61 and the warp and weft wires 62 distributed densely and continuously, the disordered fibers 61 have large pores, the warp and weft wires 62 can absorb and conduct liquid quickly, the super absorbent resin 2 on the upper layer can absorb liquid quickly after the liquid seeps downward, meanwhile, the warp and weft wires 62 have enough space for the super absorbent resin 2 to swell, the upper layer is not blocked by the reaction of the viscose of the water absorbent resin, the liquid can flow downward quickly through the channel, and the super absorbent resin 2 on the lower layer plays a main liquid absorption function.
In the above embodiments, in other embodiments, further, the middle layer 6 may be one or more layers, and when the middle layer is a plurality of layers, the super absorbent polymer 2 may be intermittently spread between the layers, so as to enhance the conductivity inside the core and increase the infiltration speed.
In summary, according to the composite core and the manufacturing method thereof, the middle layer 6 is made by fixing the disordered fibers 61 through the graticule 62 through the improvement of the middle layer 6, and certain pores exist in the fibers, so that the super absorbent resin 2 has enough space for expansion after liquid absorption, and therefore, the situation of viscose blockage can not occur to influence the multiple liquid absorption, and meanwhile, the core can not generate the situation of lump and fault. Meanwhile, by using the graticule wires 62 and matching with materials with certain flow guiding effect which are made in a certain carding mode, the diffusion and flow guiding performance between layers can be improved, and the absorption of the core body for many times is facilitated.
While the composite core and the method for manufacturing the composite core according to the embodiments of the present invention have been described in detail, those skilled in the art will appreciate that the scope of the present invention is not limited to the above description.
Claims (7)
1. The utility model provides a composite core, includes upper strata (1), middle level (6) and lower floor (4), the material of upper strata (1) and lower floor (4) is dust-free paper, non-woven fabrics or spunlace, middle level (6) are located between upper strata (1) and lower floor (4), its characterized in that: the middle layer (6) comprises disordered fibers (61), and warp and weft mesh lines (62) are arranged on the disordered fibers (61).
2. A composite core as claimed in claim 1, wherein: one or more layers of super absorbent resin (2) or mixture of super absorbent resin (2) and fiber are arranged above and below the middle layer (6).
3. A composite core as claimed in claim 1, wherein: the random fibers (61) are made via different types of carding.
4. A composite core as claimed in claim 1, wherein: the disordered fibers (61) and the graticule wires (62) can be made of natural fibers or artificial fibers, and can be short fibers or long fibers.
5. A method of manufacturing a composite core, comprising: the composite core body comprises the following concrete steps:
s1, manufacturing an upper layer (1), a lower layer (4) and a graticule (62), and preparing a high water-absorbent resin (2) and disordered fibers (61) which are carded by a certain type;
s2, paving the lower layer (4) in the working space, and gluing the upper surface of the lower layer (4);
s3, spreading super absorbent resin (2) on the upper surface of the lower layer (4) after sizing;
s4, compounding disordered fibers (61) on the front surface of the material obtained in the step S3 and fixing the disordered fibers through graticules (62);
s5, spreading super absorbent resin (2) on the front surface of the material obtained in the step S4;
s6, the upper layer (1) is laminated on the front surface of the material obtained in the step S5.
6. A method of manufacturing a composite core according to claim 5, wherein: in step S3, the super absorbent resin (2) may be continuously or intermittently applied.
7. A method of manufacturing a composite core according to claim 5, wherein: in step S4, the random fibers (61) are fixed by the warp and weft threads (62), and then the composite operation is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960773.7A CN112641565A (en) | 2019-10-11 | 2019-10-11 | Composite core and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960773.7A CN112641565A (en) | 2019-10-11 | 2019-10-11 | Composite core and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112641565A true CN112641565A (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910960773.7A Pending CN112641565A (en) | 2019-10-11 | 2019-10-11 | Composite core and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112641565A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113679536A (en) * | 2021-09-09 | 2021-11-23 | 泉州天娇妇幼卫生用品有限公司 | Paper diaper capable of preventing urine leakage through rapid diffusion and absorption and production method thereof |
| CN114099147A (en) * | 2021-12-30 | 2022-03-01 | 福建恒安集团有限公司 | Production process of dry and comfortable high-strength fluff pulp paper core diaper |
| CN114712094A (en) * | 2022-03-22 | 2022-07-08 | 广东景兴健康护理实业股份有限公司 | Edge leakage prevention weaving core sanitary towel with diversion blocking groove |
| CN115212040A (en) * | 2022-07-14 | 2022-10-21 | 江西省安秀实业发展有限公司 | Foam air core and preparation method and application thereof |
-
2019
- 2019-10-11 CN CN201910960773.7A patent/CN112641565A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113679536A (en) * | 2021-09-09 | 2021-11-23 | 泉州天娇妇幼卫生用品有限公司 | Paper diaper capable of preventing urine leakage through rapid diffusion and absorption and production method thereof |
| CN114099147A (en) * | 2021-12-30 | 2022-03-01 | 福建恒安集团有限公司 | Production process of dry and comfortable high-strength fluff pulp paper core diaper |
| CN114099147B (en) * | 2021-12-30 | 2022-07-05 | 福建恒安集团有限公司 | Production process of dry and comfortable high-strength fluff pulp paper core diaper |
| CN114712094A (en) * | 2022-03-22 | 2022-07-08 | 广东景兴健康护理实业股份有限公司 | Edge leakage prevention weaving core sanitary towel with diversion blocking groove |
| CN115212040A (en) * | 2022-07-14 | 2022-10-21 | 江西省安秀实业发展有限公司 | Foam air core and preparation method and application thereof |
| CN115212040B (en) * | 2022-07-14 | 2023-12-19 | 江西省安秀实业发展有限公司 | Foam air core and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 432015 No. 189, Juxian Road, high tech Zone, Xiaogan City, Hubei Province* Applicant after: Hubei Yongyi nursing products Co.,Ltd. Address before: No. 78, YinBai Road, Jinghe office, Dongxihu District, Wuhan City, Hubei Province, 430000 Applicant before: Wuhan Yongyi Paper Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210413 |
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| WD01 | Invention patent application deemed withdrawn after publication |