CN111603316B - Absorption core and forming process thereof - Google Patents
Absorption core and forming process thereof Download PDFInfo
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- CN111603316B CN111603316B CN202010447272.1A CN202010447272A CN111603316B CN 111603316 B CN111603316 B CN 111603316B CN 202010447272 A CN202010447272 A CN 202010447272A CN 111603316 B CN111603316 B CN 111603316B
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229920000642 polymer Polymers 0.000 claims abstract description 63
- 239000002250 absorbent Substances 0.000 claims description 37
- 230000002745 absorbent Effects 0.000 claims description 36
- 238000003825 pressing Methods 0.000 claims description 30
- 229920000742 Cotton Polymers 0.000 claims description 21
- 229920001131 Pulp (paper) Polymers 0.000 claims description 19
- 239000012510 hollow fiber Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229920002521 macromolecule Polymers 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000009826 distribution Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 7
- 238000004049 embossing Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 4
- 229910003460 diamond Inorganic materials 0.000 abstract description 2
- 239000010432 diamond Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 12
- 230000035699 permeability Effects 0.000 description 8
- 238000005213 imbibition Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 210000001124 body fluid Anatomy 0.000 description 5
- 239000010839 body fluid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000012815 thermoplastic material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 235000003301 Ceiba pentandra Nutrition 0.000 description 2
- 244000146553 Ceiba pentandra Species 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 cationic polysaccharide Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
Images
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
-
- 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
Abstract
The invention relates to the field of disposable sanitary products, in particular to an absorption core body which comprises a body, wherein the body comprises an inner core and toilet paper, a groove is formed in the body, a convex part is formed on the inner core, water-absorbing polymers are arranged in the groove, barrier dust-free paper is respectively coated on two ends of the inner core, each barrier dust-free paper seals one end of each groove, and the ratio of the width of each groove to the width of the convex part is 1:3-2:3, the width of the groove is 10-20mm, the width of the protruding part is 15-30mm, the thickness of the inner core at the protruding part is 3-5mm, and the thickness of the inner core at the groove is 1.5-2.5 mm. The technical problem that the distribution of water-absorbing polymers of an existing absorbing core is difficult to be uniform during molding of a die wheel is solved, and the technical problem that the core is easy to harden when the core is reinforced by embossing such as diamond is also solved. And provides a forming process of the absorption core body based on the same invention concept.
Description
Technical Field
The invention relates to the field of disposable hygienic products, in particular to an absorption core body and a forming process thereof.
Background
Currently, in the field of disposable sanitary products, an absorbent core is a relatively central product, and the quality of the absorption performance, the cost and the structural performance of the absorbent core often determines the success or failure of market competition. The conventional absorbent core is generally formed in a die wheel by forming a specific shape of the pulp cotton and a water-absorbent polymer in a die of the die wheel, and then, the pulp cotton is separated from the die wheel and covered with a surface material such as toilet paper. The molded shape often has a concave part and a convex part, so that the absorption performance can be improved, and the contact area with the skin can be reduced. Such as Chinese patent numbers: 200980118308.3, the core comprising a substrate layer comprising a first surface and a second surface, the absorbent core further comprising a non-uniform layer of absorbent polymer material comprising a first surface and a second surface, the absorbent core further comprising a layer of thermoplastic material comprising a first surface and a second surface, the absorbent core further comprising a cover layer comprising a first surface and a second surface, wherein the second surface of the non-uniform layer of absorbent polymer material is at least partially in contact with the first surface of the substrate layer, and wherein portions of the second surface of the layer of thermoplastic material are in direct contact with the first surface of the substrate layer and portions of the second surface of the layer of thermoplastic material are in direct contact with the first surface of the non-uniform layer of absorbent polymer material, and wherein the second surface of the cover layer is in direct contact with the first surface of the layer of thermoplastic material, the base layer comprising a web of fibers, characterized in that: the absorbent core comprises a cationic polysaccharide.
However, in the molding process in the die wheel, the distribution of the wood pulp cotton and the water-absorbing polymer is often poor, and particularly, the core body distribution is difficult to be even under the condition that the proportion of the water-absorbing polymer is high.
In addition, there is also an absorbent core, the surface of which is not formed with projections and depressions by a die wheel, but which is reinforced with diamond-shaped or other-shaped embossings after production to enhance the strength of the core, as shown in fig. 1.
When the diamond-shaped embossing or the embossing with other shapes is adopted, when the embossing meets the position with higher distribution weight of the water-absorbing high polymer, a hard block is easily formed, and the absorption of body fluid and the wearing comfort are influenced.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides an absorbent core, which solves the technical problem that the distribution of the water-absorbing polymer is difficult to be uniform when the existing absorbent core is molded by a die wheel, and also solves the technical problem that the existing absorbent core is easy to cause core hardening when the existing absorbent core is reinforced by embossing such as diamond after the molding by the die wheel. And provides a forming process of the absorption core body based on the same invention concept.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an absorb core, includes the body, the body includes piles up the toilet paper who forms the inner core and locate the upper and lower surface of inner core by the wood pulp cotton, be provided with the slot along length direction on the body, the quantity of slot is more than two, and each slot sets up along width direction interval side by side, it forms protruding position to lie in on the inner core between two adjacent slots, the ditch inslot is provided with the polymer that absorbs water, the cladding has the dustless paper of separation respectively on the length direction's of inner core both ends, and each dustless paper of separation seals each slot along length direction's one end, the width of slot is 1 with the width ratio at protruding position: 3-2:3, the width of the groove is 10-20mm, the width of the protruding part is 15-30mm, the thickness of the inner core at the protruding part is 3-5mm, and the thickness of the inner core at the groove is 1.5-2.5 mm.
Furthermore, a plurality of step-shaped depressions are arranged at the bottom of each groove, and the depth of each step-shaped depression is 0.5-1 mm.
Furthermore, V-shaped depressions are formed in the protruding portion in the middle of the inner core in an extending mode along the length direction, the maximum width of each V-shaped depression is smaller than 1mm, and the depth of each V-shaped depression is larger than 1 mm.
Furthermore, the groove is in an inverted trapezoid shape, and the difference value between the width of the bottom of the groove and the width of the opening of the groove is 2-4mm
Further, hollow fibers are mixed in the inner core, and the mass ratio of the wood pulp cotton to the hollow fibers is 20: 1-40: 1.
furthermore, the water-absorbing polymer in the groove does not protrude out of the upper end face of the groove.
Furthermore, the distance between the water-absorbing polymer in the groove and the upper end face of the groove is larger than 0.5 mm.
The forming process of the absorption core body with the same invention concept comprises the following steps:
the method comprises the following steps that firstly, an inner core is formed through a die wheel, a plurality of forming dies are arranged on the die wheel, each die comprises a body, a cavity which penetrates out of the upper surface of the body upwards is arranged on the body, a plurality of inverted trapezoidal bosses are arranged at the bottom of the cavity, trapezoidal protrusions are arranged on the inverted trapezoidal bosses, a conical protrusion is arranged between every two adjacent inverted trapezoidal bosses, then the formed inner core is output, grooves corresponding to the inverted trapezoidal bosses are formed in the inner core, protruding parts are formed in the positions, except the grooves, of the inner core, V-shaped recesses corresponding to the conical protrusions and trapezoidal recesses corresponding to the trapezoidal protrusions are formed in the inner core, water-absorbing high polymers are not added in the forming of the die wheel, then the inner core is output, and toilet paper is used for supporting;
secondly, pressing an inner core on the toilet paper by using a pressing wheel, wherein the pressing height of the pressing wheel is 75% -85% of the height of the inner core, and the pressing wheel comprises a wheel body for pressing a convex part and a wheel body bulge arranged on the wheel body for pressing a groove;
thirdly, adding water-absorbing macromolecules by utilizing a macromolecule adding device, wherein the length and the width of a discharge hole of the macromolecule adding device are both smaller than those of the groove;
and fourthly, coating the two ends of the inner core in the length direction by using dust-free paper, and coating the upper surface of the inner core by using toilet paper.
Furthermore, a plurality of spine protrusions are arranged on the circumferential surface of each wheel body protrusion, the height of each spine protrusion is smaller than 0.5mm, the maximum diameter of each spine protrusion is smaller than 0.5mm, and the distance between every two adjacent spine protrusions is larger than 2mm and smaller than 5 mm.
Furthermore, when the pressing wheel is used for pressing the inner core on the toilet paper, the groove is pressed by the wheel body protrusion, and then the groove is subjected to electrostatic application by the electrostatic generator.
By adopting the technical scheme, the invention has the beneficial effects that:
1. this scheme is piled up through the wood pulp cotton and is formed the inner core to set up the slot on the inner core, lay the polymer that absorbs water at the slot, the cladding has the dustless paper of separation respectively on the length direction's of inner core both ends, has solved the problem that current absorption core polymer distribution that absorbs water when the moulding wheel shaping is difficult to even again, has also solved the technical problem that utilizes impressed watermark such as rhombus to lead to the fact the core sclerosis easily when consolidating after the moulding wheel shaping. Although the absorption core in this scheme is gathering in the ditch groove, after the relevant size of specific restriction ditch groove, protruding position, its volume of laying the polymer is restricted, mainly utilize the polymer that absorbs water to produce the effect of an initial sharp imbibition, make body fluid permeate through the product top layer fast, see through the top layer of absorbing the core, and absorbed by the polymer that absorbs water, then utilize this guide effect, make wood pulp cotton also exert the effect that absorbs water, thereby realize high-efficient, quick water absorption purpose, it mainly used on products that the absorbent capacity is not big such as sanitary towel of daily use, also can be used to products such as panty-shape diapers. After absorbing a certain amount of body fluid, the absorbent core body can deform due to the expansion of the water-absorbing macromolecules, the middle part of the width direction of the absorbent core body arches upwards, and the two sides of the width direction of the absorbent core body bend downwards, so that a shape which is relatively fit with the human body state is realized, and strong discomfort caused by the absorbent core body after liquid absorption can be avoided.
2. The arrangement of the step-shaped recess can realize the strengthening effect of the key position and improve the absorption performance of the key position.
3. The V-shaped recess is mainly used for being matched with the deformation of the absorption core body, so that the deformation and bending amount of the absorption core body can be towards the preset direction of the product. Moreover, the V-shaped depressions can increase the absorption of the wood pulp cotton and improve the absorption effect of the wood pulp cotton.
4. The slot is inverted trapezoid, is difficult in order to realize the drawing of patterns in current mould wheel production, and the feasible mode of this scheme lies in the sunken existence of V-arrangement, and the bottom width of slot is less with slot open-ended width difference, like this when the drawing of patterns, because the sunken existence of V-arrangement, and the malleation blows to make the inner core break away from the mould of mould wheel. The device aims to realize the barrier of the water-absorbing macromolecules. The water-absorbing polymer expands after absorbing liquid, the top of the water-absorbing polymer is limited by toilet paper, the main breakthrough of the water-absorbing polymer is at the connecting part of the surface of the inner core and the groove, the breakthrough of the water-absorbing polymer is greatly limited by the existence of the inverted trapezoid, and the water-absorbing polymer is limited in the groove to a greater extent, so that the water-absorbing polymer can drive the water-absorbing core to be correspondingly bent.
5. The hollow fibers are mixed in the inner core, and the mass ratio of the wood pulp cotton to the hollow fibers is 20: 1-40: 1, hollow fiber's setting can effectively increase air permeability, because the product of this scheme is that the roll-in that needs pass through the later stage is, in order to prevent that the wood pulp cotton leads to the weakening of air permeability because the roll-in, has increased small amount of hollow fiber, can effectively increase its air permeability, and after the imbibition, these hollow fiber also can play positive influence to the locking of hydrone, improve imbibition, lock liquid effect.
6. The water-absorbing polymer in the groove does not protrude out of the upper end face of the groove, and the distance between the water-absorbing polymer in the groove and the upper end face of the groove is larger than 0.5 mm. The main purpose of the arrangement is to reserve partial space for the polymer to expand, and effectively prevent the polymer from entering the upper surface of the convex part before imbibing to cause the concave-convex after imbibing.
7. A specific die is provided for a product, the die is used for forming the inner core, and then the pressing wheel is used for rolling the inner core, so that synchronous rolling of the convex part and the groove is realized. The length and the width of the discharge port of the polymer adding device are both smaller than those of the groove, so that the effective broadcasting of the polymers can be effectively realized. Thereby forming an absorbing core body with better absorbing performance and faster absorbing efficiency.
8. The bottom surface of the groove is damaged by the pointed protrusions, the damage does not actually affect the performance of the kapok, but the air permeability can be increased, and the stability of the water-absorbing polymer can be realized.
9. The electrostatic generator is used for applying static electricity to the groove, the aim is to stabilize the high polymer, especially when in production and transportation, the high polymer is prevented from being dislocated to one side due to high-speed transportation, so that the unevenness of the high polymer is avoided, and the effective realization and the even realization of the high polymer broadcasting are facilitated.
Drawings
FIG. 1 is a schematic structural view of an inner core;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 and covered with toilet paper;
FIG. 3 is a schematic cross-sectional view of FIG. 1 at B-B and covered with toilet paper;
FIG. 4 is a schematic top view of the mold;
FIG. 5 is a schematic cross-sectional view of the mold;
FIG. 6 is a schematic diagram of a puck construction.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1, fig. 2, fig. 3, this embodiment provides an absorb core, including the body, the body includes piles up by the wood pulp cotton 6 and forms inner core 1 and locates the toilet paper 2 of inner core upper and lower surface, be provided with slot 11 along length direction on the body 1, the quantity of slot 11 is more than two, is provided with four slots in this scheme, and each slot 11 sets up along width direction interval side by side, it forms protruding portion 12 to lie in between two adjacent slots 11 on the inner core 1, be provided with the polymer 3 that absorbs water in the slot 11, the cladding has separation dustless paper 4 respectively on the length direction's of inner core both ends, and each separation dustless paper 4 seals each slot 11 along length direction's one end. The ratio of the width of the groove 11 to the width of the convex part 12 is 1:3-2:3, in this example, the value 3: 5, the width of the groove 11 is 10-20mm, the width of the protruding portion 12 is 12mm in this embodiment, the width of the protruding portion 12 is 15-30mm, the width of the inner core 1 is 20mm in this embodiment, the thickness of the inner core 1 located at the protruding portion 12 is 3-5mm, the thickness of the inner core 1 located at the groove 11 is 1.5-2.5mm in this embodiment, the width of the inner core 1 located at the groove 11 is 2mm in this embodiment, and these values can be taken within corresponding ranges.
The bottom of each groove 11 is provided with a plurality of step-shaped depressions 13, the depth of each step-shaped depression 13 is 0.5-1mm, and the value of the embodiment is 0.75 mm. V-shaped depressions 14 extend along the length direction on the convex part 12 positioned in the middle of the inner core 1, the maximum width of each V-shaped depression 14 is less than 1mm, and the depth is more than 1 mm. The groove 11 is in an inverted trapezoid shape, the difference between the width of the bottom of the groove 11 and the width of the opening of the groove 11 is 2-4mm, the hollow fibers 5 are mixed in the inner core 1, and the mass ratio of the wood pulp cotton 6 to the hollow fibers 5 is 20: 1-40: 1. the water-absorbing polymer 2 in the groove 11 does not protrude out of the upper end surface of the groove 11. The distance between the water-absorbing polymer in the groove 11 and the upper end face of the groove 11 is larger than 0.5 mm.
The hollow fiber is a known product, which can be directly purchased from the market, and is not described herein, and the size and the proportion can be selected according to actual needs.
1. This scheme is piled up through the wood pulp cotton and is formed the inner core to set up the slot on the inner core, lay the polymer that absorbs water at the slot, the cladding has the dustless paper of separation respectively on the length direction's of inner core both ends, has solved the problem that current absorption core polymer distribution that absorbs water when the moulding wheel shaping is difficult to even again, has also solved the technical problem that utilizes impressed watermark such as rhombus to lead to the fact the core sclerosis easily when consolidating after the moulding wheel shaping. Although the absorption core in this scheme is gathering in the ditch groove, after the relevant size of specific restriction ditch groove, protruding position, its volume of laying the polymer is restricted, mainly utilize the polymer that absorbs water to produce the effect of an initial sharp imbibition, make body fluid permeate through the product top layer fast, see through the top layer of absorbing the core, and absorbed by the polymer that absorbs water, then utilize this guide effect, make wood pulp cotton also exert the effect that absorbs water, thereby realize high-efficient, quick water absorption purpose, it mainly used on products that the absorbent capacity is not big such as sanitary towel of daily use, also can be used to products such as panty-shape diapers. After absorbing a certain amount of body fluid, the absorbent core body can deform due to the expansion of the water-absorbing macromolecules, the middle part of the width direction of the absorbent core body arches upwards, and the two sides of the width direction of the absorbent core body bend downwards, so that a shape which is relatively fit with the human body state is realized, and strong discomfort caused by the absorbent core body after liquid absorption can be avoided.
2. The arrangement of the step-shaped recess can realize the strengthening effect of the key position and improve the absorption performance of the key position.
3. The V-shaped recess is mainly used for being matched with the deformation of the absorption core body, so that the deformation and bending amount of the absorption core body can be towards the preset direction of the product. Moreover, the V-shaped depressions can increase the absorption of the wood pulp cotton and improve the absorption effect of the wood pulp cotton.
4. The slot is inverted trapezoid, is difficult in order to realize the drawing of patterns in current mould wheel production, and the feasible mode of this scheme lies in the sunken existence of V-arrangement, and the bottom width of slot is less with slot open-ended width difference, like this when the drawing of patterns, because the sunken existence of V-arrangement, and the malleation blows to make the inner core break away from the mould of mould wheel. The device aims to realize the barrier of the water-absorbing macromolecules. The water-absorbing polymer expands after absorbing liquid, the top of the water-absorbing polymer is limited by toilet paper, the main breakthrough of the water-absorbing polymer is at the connecting part of the surface of the inner core and the groove, the breakthrough of the water-absorbing polymer is greatly limited by the existence of the inverted trapezoid, and the water-absorbing polymer is limited in the groove to a greater extent, so that the water-absorbing polymer can drive the water-absorbing core to be correspondingly bent.
5. The hollow fibers are mixed in the inner core, and the mass ratio of the wood pulp cotton to the hollow fibers is 20: 1-40: 1, hollow fiber's setting can effectively increase air permeability, because the product of this scheme is that the roll-in that needs pass through the later stage is, in order to prevent that the wood pulp cotton leads to the weakening of air permeability because the roll-in, has increased small amount of hollow fiber, can effectively increase its air permeability, and after the imbibition, these hollow fiber also can play positive influence to the locking of hydrone, improve imbibition, lock liquid effect.
6. The water-absorbing polymer in the groove does not protrude out of the upper end face of the groove, and the distance between the water-absorbing polymer in the groove and the upper end face of the groove is larger than 0.5 mm. The main purpose of the arrangement is to reserve partial space for the polymer to expand, and effectively prevent the polymer from entering the upper surface of the convex part before imbibing to cause the concave-convex after imbibing.
Referring again to fig. 4, 5 and 6, the forming process of the absorbent core includes the following steps:
firstly, forming an inner core through a die wheel, wherein the die wheel is provided with a plurality of forming dies, each die comprises a body 7, the body 7 is provided with a cavity 71 which upwards penetrates out of the upper surface of the body 7, the bottom of the cavity 71 is provided with a plurality of inverted trapezoidal bosses 72, each inverted trapezoidal boss 72 is provided with a trapezoidal protrusion 73, a conical protrusion 74 is arranged between every two adjacent inverted trapezoidal bosses 72, then the formed inner core is output, the inner core is provided with a groove corresponding to the inverted trapezoidal bosses, the positions of the inner core except the groove form a protrusion part, the inner core is provided with a V-shaped recess corresponding to the conical protrusion, the inner core is provided with a trapezoidal recess corresponding to the trapezoidal protrusion, no water-absorbing polymer is added in the die wheel forming process, and then the inner core is output and is supported by toilet paper;
secondly, pressing an inner core on the toilet paper by using a pressing wheel, wherein the pressing height of the pressing wheel is 75% -85% of the height of the inner core, the pressing wheel comprises a wheel body 8 for pressing a convex part and a wheel body bulge 81 arranged on the wheel body 8 for pressing a groove, and when the pressing wheel 8 is used for pressing the inner core on the toilet paper, the wheel body bulge 81 is used for pressing the groove, and then an electrostatic generator is used for applying static electricity to the groove;
thirdly, adding water-absorbing macromolecules by utilizing a macromolecule adding device, wherein the length and the width of a discharge hole of the macromolecule adding device are both smaller than those of the groove;
and fourthly, coating the two ends of the inner core in the length direction by using dust-free paper, and coating the upper surface of the inner core by using toilet paper.
The circumferential surface of the wheel body protrusion 81 is provided with a plurality of spine protrusions 82, the protrusion height of each spine protrusion 82 is less than 0.5mm, the maximum diameter of each spine protrusion is less than 0.5mm, and the distance between two adjacent spine protrusions is greater than 2mm and less than 5 mm. The bottom surface of the groove is damaged by the pointed protrusions, the damage does not actually affect the performance of the kapok, but the air permeability can be increased, and the stability of the water-absorbing polymer can be realized.
The forming process gives a specific die for a product, the die is used for forming the inner core, and then the pressing wheel is used for rolling the inner core, so that the synchronous rolling of the convex part and the groove is realized. The length and the width of the discharge port of the polymer adding device are both smaller than those of the groove, so that the effective broadcasting of the polymers can be effectively realized. Thereby forming an absorbing core body with better absorbing performance and faster absorbing efficiency. The electrostatic generator is used for applying static electricity to the groove, the aim is to stabilize the high polymer, especially when in production and transportation, the high polymer is prevented from being dislocated to one side due to high-speed transportation, so that the unevenness of the high polymer is avoided, and the effective realization and the even realization of the high polymer broadcasting are facilitated.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An absorbent core comprising a body characterized by: the body comprises an inner core formed by piling wood pulp cotton and toilet paper arranged on the upper surface and the lower surface of the inner core, the body is provided with more than two grooves along the length direction, each groove is arranged side by side along the width direction at intervals, a convex part is formed between two adjacent grooves on the inner core, water-absorbing macromolecules are arranged in the grooves, two ends of the inner core in the length direction are respectively coated with dust-free blocking paper, each dust-free blocking paper seals one end of each groove along the length direction, the ratio of the width of each groove to the width of the convex part is 1:3-2:3, the width of each groove is 10-20mm, the width of the convex part is 15-30mm, the thickness of the inner core at the convex part is 3-5mm, the thickness of the inner core at the groove is 1.5-2.5mm, a V-shaped recess for adjusting the deformation and bending amount and facilitating demoulding is arranged on the convex part in the middle part of the inner core in an extending manner along the length direction, the cross-section of slot is the trapezoidal form that bottom width is big and opening width is little, and after the polymer that absorbs water the inflation, can make the absorption core take place to warp, warp and appear the width direction's of absorption core middle part upwards hunch-up and absorb the width direction's of core both sides downwarping.
2. An absorbent core as claimed in claim 1, wherein: the bottom of each groove is provided with a plurality of step-shaped depressions, and the depth of each step-shaped depression is 0.5-1 mm.
3. An absorbent core as claimed in claim 1, wherein: the maximum width of each V-shaped recess is less than 1mm, and the depth is more than 1 mm.
4. An absorbent core as claimed in claim 1, wherein: the difference between the width of the bottom of the groove and the width of the opening of the groove is 2-4 mm.
5. An absorbent core as claimed in claim 1, wherein: the hollow fibers are mixed in the inner core, and the mass ratio of the wood pulp cotton to the hollow fibers is 20: 1-40: 1.
6. an absorbent core as claimed in claim 1, wherein: the water-absorbing polymer in the groove does not protrude out of the upper end face of the groove.
7. An absorbent core according to claim 6, wherein: the distance between the water-absorbing polymer in the groove and the upper end face of the groove is larger than 0.5 mm.
8. A process for forming an absorbent core according to any one of claims 1 to 7, comprising the steps of:
the method comprises the following steps that firstly, an inner core is formed through a die wheel, a plurality of forming dies are arranged on the die wheel, each die comprises a body, a cavity which penetrates out of the upper surface of the body upwards is arranged on the body, a plurality of inverted trapezoidal bosses are arranged at the bottom of the cavity, trapezoidal protrusions are arranged on the inverted trapezoidal bosses, a conical protrusion is arranged between every two adjacent inverted trapezoidal bosses, then the formed inner core is output, grooves corresponding to the inverted trapezoidal bosses are formed in the inner core, protruding parts are formed in the positions, except the grooves, of the inner core, V-shaped recesses corresponding to the conical protrusions and trapezoidal recesses corresponding to the trapezoidal protrusions are formed in the inner core, water-absorbing high polymers are not added in the forming of the die wheel, then the inner core is output, and toilet paper is used for supporting;
secondly, pressing an inner core on the toilet paper by using a pressing wheel, wherein the pressing height of the pressing wheel is 75% -85% of the height of the inner core, and the pressing wheel comprises a wheel body for pressing a convex part and a wheel body bulge arranged on the wheel body for pressing a groove;
thirdly, adding water-absorbing macromolecules by utilizing a macromolecule adding device, wherein the length and the width of a discharge hole of the macromolecule adding device are both smaller than those of the groove;
and fourthly, coating the two ends of the inner core in the length direction by using dust-free paper, and coating the upper surface of the inner core by using toilet paper.
9. A process for forming an absorbent core according to claim 8 wherein: the wheel body is characterized in that a plurality of spine protrusions are arranged on the circumferential surface of each wheel body protrusion, the height of each spine protrusion is smaller than 0.5mm, the maximum diameter of each spine protrusion is smaller than 0.5mm, and the distance between every two adjacent spine protrusions is larger than 2mm and smaller than 5 mm.
10. A process for forming an absorbent core according to claim 8 wherein: when the pressing wheel is used for pressing the inner core on the toilet paper, the groove is pressed by the wheel body protrusion, and then the groove is subjected to electrostatic application by the electrostatic generator.
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3124190B2 (en) * | 1994-09-01 | 2001-01-15 | ユニ・チャーム株式会社 | Sanitary article absorber |
| US7223900B1 (en) * | 1999-08-16 | 2007-05-29 | Johnson & Johnson Inc. | Thin sanitary napkin allowing for controlled deformation when in use |
| TW592676B (en) * | 2002-04-12 | 2004-06-21 | Rayonier Prod & Fncl Serv Co | Absorbent cores with improved intake performance |
| US20060206073A1 (en) * | 2005-03-11 | 2006-09-14 | Crane Patrick L | Insitube-formed absorbent core structures |
| CN103349590B (en) * | 2013-07-11 | 2016-01-13 | 金红叶纸业集团有限公司 | Absorbent article |
| CN105473113B (en) * | 2013-08-27 | 2019-03-08 | 宝洁公司 | Absorbent article with channel |
| RU173358U1 (en) * | 2013-11-14 | 2017-08-23 | Као Корпорейшн | ABSORBABLE PRODUCT TYPE OF PANTIES |
| JP5829326B1 (en) * | 2014-12-26 | 2015-12-09 | ユニ・チャーム株式会社 | Nonwoven fabric for absorbent articles |
| CN205339317U (en) * | 2015-11-25 | 2016-06-29 | 天津市中科健新材料技术有限公司 | High absorption property panty -shape diapers |
| CN107669413A (en) * | 2016-08-02 | 2018-02-09 | 刘燕 | Composite absorption core body |
| CN206151700U (en) * | 2016-08-15 | 2017-05-10 | 中天（中国）工业有限公司 | Adult paper diaper |
| CN108245320A (en) * | 2018-02-27 | 2018-07-06 | 爹地宝贝股份有限公司 | A kind of paper diaper compound core body and its processing method |
| CN209500092U (en) * | 2018-03-30 | 2019-10-18 | 泉州市汉奇卫生材料有限公司 | A kind of new type superthin absorptive core |
| CN209864323U (en) * | 2019-02-28 | 2019-12-31 | 泉州市泰迪新材料科技有限公司 | Instant-absorption polymer paper diaper |
| CN110141427A (en) * | 2019-05-27 | 2019-08-20 | 上海帅芯科技有限公司 | A kind of the composite absorption core and its manufacturing method of middle layer with groove |
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Effective date of registration: 20231116 Address after: 362261 the third industrial zone, Anhai Town, Jinjiang City, Quanzhou City, Fujian Province Patentee after: FUJIAN HENGAN HYGIENE MATERIAL Co.,Ltd. Address before: 362200 HengAn industrial city, Anhai Town, Jinjiang City, Quanzhou City, Fujian Province Patentee before: FUJIAN HENGAN HOLDING Co.,Ltd. Patentee before: HENGAN (CHINA) HYGIENE PRODUCTS Co.,Ltd. Patentee before: FUJIAN HENGAN HOUSEHOLD LIFE ARTICLE Co.,Ltd. |