CN110269753A - A kind of no wood pulp absorptive core and preparation method thereof - Google Patents
A kind of no wood pulp absorptive core and preparation method thereof Download PDFInfo
- Publication number
- CN110269753A CN110269753A CN201910540412.7A CN201910540412A CN110269753A CN 110269753 A CN110269753 A CN 110269753A CN 201910540412 A CN201910540412 A CN 201910540412A CN 110269753 A CN110269753 A CN 110269753A
- Authority
- CN
- China
- Prior art keywords
- coating area
- woven fabrics
- absorptive core
- wood pulp
- layer
- 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
Links
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 79
- 238000000576 coating method Methods 0.000 claims abstract description 79
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 72
- 239000011347 resin Substances 0.000 claims abstract description 54
- 229920005989 resin Polymers 0.000 claims abstract description 54
- 239000003292 glue Substances 0.000 claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 11
- 239000002362 mulch Substances 0.000 claims abstract description 11
- 239000004753 textile Substances 0.000 claims abstract description 11
- 238000009792 diffusion process Methods 0.000 claims description 27
- 238000007731 hot pressing Methods 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 229920006307 urethane fiber Polymers 0.000 claims 1
- 230000037303 wrinkles Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 239000010410 layer Substances 0.000 description 99
- 239000007788 liquid Substances 0.000 description 14
- 230000002745 absorbent Effects 0.000 description 11
- 239000002250 absorbent Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 229920002635 polyurethane Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920006306 polyurethane fiber Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—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
- A61F2013/1591—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding via adhesive
-
- 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
-
- 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
- A61F2013/530583—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 characterized by the form
- A61F2013/530613—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 characterized by the form in fibres
- A61F2013/53062—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 characterized by the form in fibres being made into a paper or non-woven
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present invention relates to absorptive core technical fields, more particularly to a kind of no wood pulp absorptive core and preparation method thereof, the no wood pulp absorptive core is laid with by least one layer of absorbed layer, and the absorbed layer includes bottom non-woven fabrics, top layer non-woven fabrics, glue and hydroscopic high-molecular resin；The bottom nonwoven surface is provided with several longitudinal directions not coating area, gluing sector width is not 3-15mm for the longitudinal direction, distance is 5-30mm between longitudinal not coating area described in any two, and fixed setting is longitudinal not coating area in the distance range of bottom non-woven fabrics two sides 5-15mm；The glue applies the region other than bottom nonwoven surface not coating area, and the hydroscopic high-molecular resin paving is spilt on glue, and the top layer non-textile mulch is above hydroscopic high-molecular resin；The technical problems to be solved by the present invention are: it is simple to provide a kind of production method, higher no wood pulp absorptive core of absorption efficiency and preparation method thereof.
Description
Technical field
The present invention relates to absorptive core technical fields more particularly to a kind of no wood pulp absorptive core and preparation method thereof.
Background technique
When most of paper diaper or sanitary napkin produce in the market, absorptive core is in paper diaper or sanitary napkin production process
It is middle crushed with wood pulp after mixed with hydroscopic high-molecular resin, then utilize glue bonding package system with non-woven fabrics or wet-strength paper
At, this absorptive core, the paper diaper of relatively thick and this structure are easy to form tomography by kneading.
Also a kind of absorptive core is not produce the compound core body made simultaneously with paper diaper or sanitary napkin on domestic market,
It is prefabricated in advance before paper diaper or sanitary napkin production.This compound core body is usually of five storeys or 7 layers of structure, and outermost two layers logical
It is often dust-free paper, centre is loft non-woven cloth, and hydroscopic high-molecular resin is clipped between dust-free paper and loft non-woven cloth, then uses again
Non-woven fabrics wraps up entirely or half package is made, and each interlayer is adhesively fixed using glue.Since structure is complicated, manufacturing process is cumbersome, because
This this structure absorptive core is prefabricated in advance before manufacture, and hydroscopic high-molecular resin is usually to carry out paving comprehensively to spill, and is produced
Product are slower for liquid absorption rate.
Summary of the invention
The technical problems to be solved by the present invention are: it is simple to provide a kind of production method, the higher no wood pulp of absorption efficiency
Absorptive core and preparation method thereof.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of no wood pulp absorptive core, the nothing
Wood pulp absorptive core includes multi-layer absorber layer；
The absorbed layer successively includes bottom non-woven fabrics, glue, hydroscopic high-molecular resin and top layer non-woven fabrics from top to bottom；
The bottom nonwoven surface is equipped at intervals with not coating area and coating area；
Bottom nonwoven surface coating area is equipped with glue；
The glue is equipped with hydroscopic high-molecular resin；
The top layer non-textile mulch is above hydroscopic high-molecular resin, the side of the top layer non-woven fabrics and bottom non-woven fabrics
Edge is fixedly connected.
The production method of above-mentioned no wood pulp absorptive core, includes the following steps:
Step 1, blade coating or sprayed glues on bottom non-woven fabrics；
Step 2 spills hydroscopic high-molecular resin on glue upper berth；
Step 3, by bottom non-woven fabrics glue and hydroscopic high-molecular resin pass through roller roll
Step 4, by top layer non-textile mulch above hydroscopic high-molecular resin；
The edge of step 5, top layer non-woven fabrics and bottom non-woven fabrics is bonded to form absorbed layer by ultrasonic wave or hot pressing；
At least one layer of absorbed layer is laid with by superposition as no wood pulp absorptive core by step 6.
The beneficial effects of the present invention are: not coating area and coating area are set in bottom nonwoven surface, guaranteeing to be bonded
While effect and assimilation effect, the use of glue and polymeric absorbent resin is reduced, it being capable of save the cost；Do not have in coating area
There is polymeric absorbent resin, liquid rapid osmotic can be made to enter inside absorbed layer, absorbed again by hydroscopic high-molecular resin later,
Improve the absorption efficiency of core；It can be laid with multi-layer absorber layer according to the demand of uptake, the thickness of absorptive core can be controlled
System；Production method of the invention is simple, can carry out production processing while paper diaper or sanitary napkin production process；By super
Sound wave or hot pressing, which are bonded top layer non-woven fabrics and bottom non-woven fabrics, reduces glue use, not only save the cost but also improves life
Produce efficiency.
Detailed description of the invention
Fig. 1 is the bottom non-woven fabrics schematic diagram of the specific embodiment of the invention；
Label declaration: 1, longitudinal not coating area；2, laterally to not coating area.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: the 1, production method that provides always without wood pulp absorptive core can be straight
It connects and is processed in paper nappy or sanitary napkin production process；2, the absorption efficiency of liquid is improved.
Fig. 1 is please referred to, a kind of no wood pulp absorptive core, the no wood pulp absorptive core includes multi-layer absorber layer；
The absorbed layer successively includes bottom non-woven fabrics, glue, hydroscopic high-molecular resin and top layer non-woven fabrics from top to bottom；
The bottom nonwoven surface is equipped at intervals with not coating area and coating area；
Bottom nonwoven surface coating area is equipped with glue；
The glue is equipped with hydroscopic high-molecular resin；
The top layer non-textile mulch is above hydroscopic high-molecular resin, the side of the top layer non-woven fabrics and bottom non-woven fabrics
Edge is fixedly connected.
As can be seen from the above description, the beneficial effects of the present invention are: not coating area is set in bottom nonwoven surface, is being protected
While card fitting effect and assimilation effect, the use of glue and polymeric absorbent resin is reduced, it being capable of save the cost；Not gluing
There is no polymeric absorbent resin in area, liquid rapid osmotic can be made to enter inside absorbed layer, later again by macromolecule water uptake tree
Rouge absorbs, and improves the absorption efficiency of core；Multi-layer absorber layer, the thickness of absorptive core can be laid with according to the demand of uptake
It can control.
Further, the bottom nonwoven surface includes longitudinal not coating area and lateral not coating area, and the longitudinal direction is not
Coating area is distributed along absorbed layer length direction, and coating area and longitudinal not coating area are not mutually perpendicular to intersect the transverse direction, described vertical
Rectangular coating area is not surrounded to not coating area and lateral coating area.
Further, the longitudinal direction not gluing sector width be 3-15mm, the adjacent longitudinal direction of any two not coating area it
Between distance be 5-30mm, the transverse direction not gluing sector width be 3-15mm, the adjacent transverse direction of any two is not between coating area
Distance is 2-6mm.
As can be seen from the above description, being divided into polymeric absorbent resin more by the way that vertical and horizontal not coating area is arranged
A independent fritter, not only further saves cost, additionally it is possible to which the absorption area for increasing polymeric absorbent resin improves it and uses effect
Rate.
It further, is not coating area in the range of the surface distance two sides 5-15mm of the bottom non-woven fabrics.
Further, the top layer nonwoven surface is coated with glue.
As can be seen from the above description, top layer nonwoven surface, which is coated with glue, can be convenient for bonding.
It further, further include diffusion layer, the diffusion layer is polyurethane fiber braiding structure, and the diffusion layer is located at top
Above layer non-woven fabrics.
As can be seen from the above description, being knitted to form diffusion layer using polyurethane fiber, allow the liquid to spread in diffusion layer,
Absorptive core internal moisture is avoided to be unevenly distributed, and diffusion layer material is polyurethane, does not have water imbibition, liquid can be made complete
It is lower to seep to Water-absorption core body.
Further, the diffusion layer surface is provided with wavy fold, if the diffusion layer circumferential direction inside is provided with
Dry inclination duct, the inclination duct tilt angle are 135-155 degree.
As can be seen from the above description, wavy fold can be such that liquid shunts in advance and then inside diffusion layer in diffusion layer surface
Uniformly diffusion, inclination duct can play the role of guiding liquid flow direction.
The production method of above-mentioned no wood pulp absorptive core, includes the following steps:
Step 1, blade coating or sprayed glues on bottom non-woven fabrics；
Step 2 spills hydroscopic high-molecular resin on glue upper berth；
Step 3, by bottom non-woven fabrics glue and hydroscopic high-molecular resin pass through roller roll
Step 4, by top layer non-textile mulch above hydroscopic high-molecular resin；
The edge of step 5, top layer non-woven fabrics and bottom non-woven fabrics is bonded to form absorbed layer by ultrasonic wave or hot pressing；
At least one layer of absorbed layer is laid with by superposition as no wood pulp absorptive core by step 6.
It, can be in the same of paper diaper or sanitary napkin production process as can be seen from the above description, production method of the invention is simple
Shi Jinhang production processing；Hydroscopic high-molecular resin can be allowed preferably to bond with glue by roller rolling；By ultrasonic wave or
Hot pressing, which is bonded top layer non-woven fabrics and bottom non-woven fabrics, reduces glue use, not only save the cost but also improves production effect
Rate.
Further, the step 1 is specifically, the region other than bottom nonwoven surface not coating area scratches or spraying
Glue.
Further, the step 4 is specifically, the two sides 5-15mm distance of top layer non-woven fabrics and bottom non-woven fabrics passes through
Ultrasonic wave or hot pressing are bonded to form absorbed layer.
Embodiment one
A kind of no wood pulp absorptive core, which is characterized in that the no wood pulp absorptive core includes multi-layer absorber layer；The suction
Receive layer successively includes bottom non-woven fabrics, glue, hydroscopic high-molecular resin and top layer non-woven fabrics from top to bottom；The bottom non-woven fabrics
Surface includes longitudinal not coating area and lateral not coating area, and coating area is not distributed along absorbed layer length direction for the longitudinal direction, described
Laterally coating area and longitudinal not coating area are not mutually perpendicular to intersect, the longitudinal direction not coating area and laterally not coating area surround it is rectangular
Coating area, bottom nonwoven surface coating area be equipped with glue；The glue is equipped with hydroscopic high-molecular resin；It is described
Above hydroscopic high-molecular resin, the top layer non-woven fabrics is fixedly connected top layer non-textile mulch with the edge of bottom non-woven fabrics；
Gluing sector width is not 3-15mm for the longitudinal direction, and distance is not 5-30mm, institute to the adjacent longitudinal direction of any two between coating area
State laterally that gluing sector width is not 3-15mm, distance is not 2-6mm to the adjacent transverse direction of any two between coating area；The bottom
It is not coating area in the range of the surface distance two sides 5-15mm of layer non-woven fabrics；The top layer nonwoven surface is coated with glue；
The glue is aqueous polyurethane APU adhesive.
The production method of above-mentioned no wood pulp absorptive core, includes the following steps:
A, the region blade coating or sprayed glues other than bottom nonwoven surface not coating area；
B, hydroscopic high-molecular resin is spilt on glue upper berth；
C, the glue on bottom non-woven fabrics is passed through roller with hydroscopic high-molecular resin to roll；
D, by top layer non-textile mulch above hydroscopic high-molecular resin；
E, the two sides 5-15mm of top layer non-woven fabrics and bottom non-woven fabrics distance is bonded to form suction by ultrasonic wave or hot pressing
Receive layer；
F, at least one layer of absorbed layer is laid with by superposition as no wood pulp absorptive core.
Embodiment two
A kind of no wood pulp absorptive core, which is characterized in that the no wood pulp absorptive core includes multi-layer absorber layer；The suction
Receive layer successively includes bottom non-woven fabrics, glue, hydroscopic high-molecular resin and top layer non-woven fabrics from top to bottom；The bottom non-woven fabrics
Surface includes longitudinal not coating area and lateral not coating area, and coating area is not distributed along absorbed layer length direction for the longitudinal direction, described
Laterally coating area and longitudinal not coating area are not mutually perpendicular to intersect, the longitudinal direction not coating area and laterally not coating area surround it is rectangular
Coating area, bottom nonwoven surface coating area be equipped with glue；The glue is equipped with hydroscopic high-molecular resin；It is described
Above hydroscopic high-molecular resin, the top layer non-woven fabrics is fixedly connected top layer non-textile mulch with the edge of bottom non-woven fabrics；
Gluing sector width is not 3-15mm for the longitudinal direction, and distance is not 5-30mm, institute to the adjacent longitudinal direction of any two between coating area
State laterally that gluing sector width is not 3-15mm, distance is not 2-6mm to the adjacent transverse direction of any two between coating area；The bottom
It is not coating area in the range of the surface distance two sides 5-15mm of layer non-woven fabrics；The top layer nonwoven surface is coated with glue；
The glue is aqueous polyurethane APU adhesive.It further include diffusion layer, the diffusion layer is polyurethane fiber braiding structure, institute
Diffusion layer is stated to be located above top layer non-woven fabrics.The diffusion layer surface is provided with wavy fold, along circle inside the diffusion layer
It is provided with several inclination ducts week, the inclination duct tilt angle is 135-155 degree.
The production method of above-mentioned no wood pulp absorptive core, includes the following steps:
A, the region blade coating or sprayed glues other than bottom nonwoven surface not coating area；
B, hydroscopic high-molecular resin is spilt on glue upper berth；
C, the glue on bottom non-woven fabrics is passed through roller with hydroscopic high-molecular resin to roll；
D, by top layer non-textile mulch above hydroscopic high-molecular resin；
E, the two sides 5-15mm of top layer non-woven fabrics and bottom non-woven fabrics distance is bonded to form suction by ultrasonic wave or hot pressing
Receive layer；
F, at least one layer of absorbed layer is laid with by superposition, and is laid with and expands above the upper layer non-woven fabrics of top absorbed layer
Layer is dissipated as no wood pulp absorptive core.
Embodiment three
A kind of no wood pulp absorptive core similar with embodiment two, the difference is that the top layer non-woven fabrics and bottom without
Woven fabric, which is equally coated with glue and spreads, has spilt hydroscopic high-molecular resin.The macromolecule water uptake tree of top layer non-woven fabrics and bottom non-woven fabrics
Rouge distribution shape is consistent.
Example IV
A kind of no wood pulp absorptive core similar with embodiment two, the difference is that the top layer non-woven fabrics and bottom without
Woven fabric, which is equally coated with glue and spreads, has spilt hydroscopic high-molecular resin.The macromolecule water uptake tree of top layer non-woven fabrics and bottom non-woven fabrics
Rouge distribution shape is inconsistent.
Table one
Above table one is the comparison table that time and absorptive capacity are seeped under the absorptive core of each embodiment, which is more
It is averaged and obtains after secondary test, usable floor area is 10dm when test3The absorptive core of size, when lower infiltration time test, uniformly make
It is tested with the liquid of 500ml, it is that test absorbent core body uptake can absorb when reaching saturation that absorptive capacity test, which makes,
Maximum capacity；It can be seen that embodiment one and the lower time difference of seeping of embodiment two are larger, this is because embodiment from table
Diffusion layer is provided in two, and diffusion layer can make liquid diffusion uniformly, and absorb core more preferably, therefore the suction of embodiment two
Receiving amount is not much different than the big many of embodiment one, embodiment three and example IV absorptive capacity, but lower infiltration time phase difference is many,
This is because when the hydroscopic high-molecular resin of top layer non-woven fabrics and bottom non-woven fabrics is interspersed, hydroscopic high-molecular resin and liquid
Contact area increase, absorption efficiency improve.
In conclusion the beneficial effects of the present invention are: not coating area is set in bottom nonwoven surface, is guaranteeing to be bonded
While effect and assimilation effect, the use of glue and polymeric absorbent resin is reduced, it being capable of save the cost；Do not have in coating area
There is polymeric absorbent resin, liquid rapid osmotic can be made to enter inside absorbed layer, absorbed again by hydroscopic high-molecular resin later,
Improve the absorption efficiency of core；At least one layer of absorbed layer, the thickness energy of absorptive core can be laid with according to the demand of uptake
Enough control.By the lateral not coating area of setting, so that polymeric absorbent resin is divided into multiple independent fritters, not only further save
About cost, additionally it is possible to which the absorption area for increasing polymeric absorbent resin improves its service efficiency.Shape is woven using polyurethane fiber
At diffusion layer, allows the liquid to spread in diffusion layer, avoid absorptive core internal moisture from being unevenly distributed, and diffusion layer material
For polyurethane, do not have water imbibition, can make liquid is completely lower to seep to Water-absorption core body.Aqueous polyurethane (APU) adhesive is hydrophilic
Better performances, and asepsis environment-protecting.Production method of the invention is simple, can while paper diaper or sanitary napkin production process into
Row production processing；Being bonded top layer non-woven fabrics and bottom non-woven fabrics by ultrasonic wave or hot pressing reduces glue use, not only saves
About cost and improve production efficiency.Hydroscopic high-molecular resin can be allowed preferably to bond with glue by roller rolling.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of no wood pulp absorptive core, which is characterized in that the no wood pulp absorptive core includes multi-layer absorber layer；
The absorbed layer successively includes bottom non-woven fabrics, glue, hydroscopic high-molecular resin and top layer non-woven fabrics from top to bottom；
The bottom nonwoven surface is equipped at intervals with not coating area and coating area；
Bottom nonwoven surface coating area is equipped with glue；
The glue is equipped with hydroscopic high-molecular resin；
For the top layer non-textile mulch above hydroscopic high-molecular resin, the edge of the top layer non-woven fabrics and bottom non-woven fabrics is solid
Fixed connection.
2. according to claim 1 without wood pulp absorptive core, which is characterized in that the bottom nonwoven surface include it is longitudinal not
Coating area and laterally not coating area, coating area is not distributed along absorbed layer length direction for the longitudinal direction, the transverse direction not coating area and
Longitudinal not coating area is mutually perpendicular to intersect, and coating area and lateral coating area do not surround rectangular coating area for the longitudinal direction.
3. according to claim 2 without wood pulp absorptive core, which is characterized in that gluing sector width is not 3- for the longitudinal direction
15mm, distance is not 5-30mm to the adjacent longitudinal direction of any two between coating area, and gluing sector width is not 3- to the transverse direction
15mm, distance is not 2-6mm to the adjacent transverse direction of any two between coating area.
4. according to claim 1 without wood pulp absorptive core, which is characterized in that the surface distance two sides of the bottom non-woven fabrics
It is not coating area in the range of the 5-15mm of side.
5. according to claim 1 without wood pulp absorptive core, which is characterized in that the top layer nonwoven surface is coated with glue.
6. according to claim 1 without wood pulp absorptive core, which is characterized in that further include diffusion layer, the diffusion layer is poly-
Urethane fiber weave structure, the diffusion layer are located above top layer non-woven fabrics.
7. according to claim 6 without wood pulp absorptive core, which is characterized in that the diffusion layer surface is provided with wavy pleat
Wrinkle, the diffusion layer circumferential direction inside are provided with several inclination ducts, and the inclination duct tilt angle is 135-155 degree.
8. the production method according to claim 1 without wood pulp absorptive core, which comprises the steps of:
Step 1, blade coating or sprayed glues on bottom non-woven fabrics；
Step 2 spills hydroscopic high-molecular resin on glue upper berth；
Step 3, by bottom non-woven fabrics glue and hydroscopic high-molecular resin pass through roller roll
Step 4, by top layer non-textile mulch above hydroscopic high-molecular resin；
The edge of step 5, top layer non-woven fabrics and bottom non-woven fabrics is bonded to form absorbed layer by ultrasonic wave or hot pressing；
At least one layer of absorbed layer is laid with by superposition as no wood pulp absorptive core by step 6.
9. the production method according to claim 8 without wood pulp absorptive core, which is characterized in that the step 1 specifically,
The bottom nonwoven surface not region blade coating or sprayed glues other than coating area.
10. the production method according to claim 8 without wood pulp absorptive core, which is characterized in that the step 4 specifically,
The two sides 5-15mm of top layer non-woven fabrics and bottom non-woven fabrics distance is bonded to form absorbed layer by ultrasonic wave or hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910540412.7A CN110269753A (en) | 2019-06-21 | 2019-06-21 | A kind of no wood pulp absorptive core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910540412.7A CN110269753A (en) | 2019-06-21 | 2019-06-21 | A kind of no wood pulp absorptive core and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110269753A true CN110269753A (en) | 2019-09-24 |
Family
ID=67961757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910540412.7A Pending CN110269753A (en) | 2019-06-21 | 2019-06-21 | A kind of no wood pulp absorptive core and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110269753A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974549A (en) * | 2019-12-17 | 2020-04-10 | 泉州天娇妇幼卫生用品有限公司 | Gluing method for paper diaper production |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040093671A1 (en) * | 2000-04-07 | 2004-05-20 | Sten Bjornberg | Hygiene mat |
| CN102697603A (en) * | 2012-06-08 | 2012-10-03 | 厦门兰海贸易有限公司 | Composite sanitary product profile without containing wood pulp fibers and preparation method thereof |
| CN204050045U (en) * | 2014-09-05 | 2014-12-31 | 芜湖悠派卫生用品有限公司 | A kind of bound edge type sheet apparatus for pet |
| CN107174407A (en) * | 2017-05-09 | 2017-09-19 | 泉州市汉威机械制造有限公司 | A kind of cotton core moulding process |
| CN108403301A (en) * | 2018-01-31 | 2018-08-17 | 东莞市润葆纸业有限公司 | A kind of novel super absorbent resin core material and processing technology |
-
2019
- 2019-06-21 CN CN201910540412.7A patent/CN110269753A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040093671A1 (en) * | 2000-04-07 | 2004-05-20 | Sten Bjornberg | Hygiene mat |
| CN102697603A (en) * | 2012-06-08 | 2012-10-03 | 厦门兰海贸易有限公司 | Composite sanitary product profile without containing wood pulp fibers and preparation method thereof |
| CN204050045U (en) * | 2014-09-05 | 2014-12-31 | 芜湖悠派卫生用品有限公司 | A kind of bound edge type sheet apparatus for pet |
| CN107174407A (en) * | 2017-05-09 | 2017-09-19 | 泉州市汉威机械制造有限公司 | A kind of cotton core moulding process |
| CN108403301A (en) * | 2018-01-31 | 2018-08-17 | 东莞市润葆纸业有限公司 | A kind of novel super absorbent resin core material and processing technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974549A (en) * | 2019-12-17 | 2020-04-10 | 泉州天娇妇幼卫生用品有限公司 | Gluing method for paper diaper production |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6550373B2 (en) | Absorbent composite material and method of manufacturing absorbent article using the same | |
| US11389345B2 (en) | Method of making an absorbent composite | |
| CN106176059B (en) | Composite core and manufacturing method thereof | |
| AU2014233180B2 (en) | Multi-layered absorbent article | |
| US10517777B2 (en) | Disposable diaper having first and second absorbent structures and channels | |
| US9974699B2 (en) | Absorbent core for disposable absorbent articles | |
| TWI507218B (en) | Absorbent sheet structure | |
| JP5739440B2 (en) | Absorbent sheet structure | |
| JP2016512759A5 (en) | ||
| HUE031297T2 (en) | Unitary absorbent structures comprising an absorbent core and/or an acquisition and dispersion layer for absorbent articles | |
| CN103637883B (en) | Water-absorption core body for hygienic product and production technology thereof | |
| CN101327156A (en) | Absorbent product | |
| CN110269753A (en) | A kind of no wood pulp absorptive core and preparation method thereof | |
| CN104540488A (en) | Soft absorbent sandwich web comprising high concentrations of superabsorbent material, cellulosic fibers and surface applied binder | |
| CN105997367A (en) | Paper diaper absorbing core body, production technology thereof and adhesive spraying technology | |
| TW201726998A (en) | Laminated nonwoven fabric | |
| CN106137558B (en) | Absorbent core of absorbent article and manufacturing process thereof | |
| KR102584193B1 (en) | Multilayer nonwoven structures used as components in disposable absorbent products | |
| CN212439076U (en) | Absorbent core | |
| CN209019185U (en) | Utilize the absorbent article of close and distant waterpower control liquid directional profile | |
| CN107744430A (en) | Utilize the absorbent article of close and distant waterpower control liquid directional profile | |
| CN208529870U (en) | A kind of fixed point absorption diamond shape 3D non-woven fabrics | |
| CN219595008U (en) | Absorbent product structure with breathable absorption space | |
| CN203647594U (en) | Water absorption core for hygienic products | |
| KR102669639B1 (en) | An absorbent composite, methods for making the absorbent composite, and an absorbent article employing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190924 |