CN111035505A - Ultrathin paper diaper core and manufacturing process thereof - Google Patents
Ultrathin paper diaper core and manufacturing process thereof Download PDFInfo
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- CN111035505A CN111035505A CN201911344057.2A CN201911344057A CN111035505A CN 111035505 A CN111035505 A CN 111035505A CN 201911344057 A CN201911344057 A CN 201911344057A CN 111035505 A CN111035505 A CN 111035505A
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- spunlace
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 84
- 239000004744 fabric Substances 0.000 claims abstract description 59
- 229920000297 Rayon Polymers 0.000 claims abstract description 48
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 45
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 252
- 239000003292 glue Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000007373 indentation Methods 0.000 claims description 34
- 239000002985 plastic film Substances 0.000 claims description 19
- 229920006255 plastic film Polymers 0.000 claims description 19
- 239000005871 repellent Substances 0.000 claims description 19
- 238000013329 compounding Methods 0.000 claims description 17
- 238000005507 spraying Methods 0.000 claims description 13
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 8
- 229920000642 polymer Polymers 0.000 abstract description 5
- 239000002250 absorbent Substances 0.000 description 18
- 230000002745 absorbent Effects 0.000 description 17
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 210000001124 body fluid Anatomy 0.000 description 7
- 239000010839 body fluid Substances 0.000 description 7
- 239000002952 polymeric resin Substances 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—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 shape
- A61F13/49—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 shape specially adapted to be worn around the waist, e.g. diapers, nappies
- A61F13/496—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 shape specially adapted to be worn around the waist, e.g. diapers, nappies in the form of pants or briefs
-
- 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
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15642—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers or pads of fibrous material on single sheets or webs
-
- 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
- A61F13/535—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
-
- 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
- A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer 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
- A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/53908—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 characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive
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 invention relates to the field of disposable sanitary products, in particular to an ultrathin paper diaper core body which comprises a body, the body comprises wood pulp spunlace fabrics, an absorption upper layer, fluffy non-woven fabrics, an absorption lower layer and viscose spunlace fabrics which are sequentially overlapped, the absorption upper layer comprises two second SAP layers arranged in the middle and a first SAP layer arranged outside the two second SAP layers, a first gap is arranged between the two second SAP layers, a second gap is arranged between each first SAP layer and the adjacent second SAP layer, the lower absorbing layer comprises two third SAP layers arranged in the middle and fourth SAP layers arranged outside the two third SAP layers, a third gap is arranged between the two third SAP layers, a fourth gap is arranged between each third SAP layer and the adjacent fourth SAP layer, the composite water-absorbing paper solves the technical problems that the existing composite water-absorbing paper is not high in softness, not high in absorption speed and low in polymer effective utilization rate due to physical compression. Also provides a manufacturing method of the ultrathin paper diaper core body.
Description
Technical Field
The invention relates to the field of disposable sanitary products, in particular to an ultrathin paper diaper core and a manufacturing process thereof.
Background
Chinese patent No.: CN201610824594.7 discloses compound paper that absorbs water, from the top down includes the isolation layer in proper order, the centre gripping curtain of mesh, go up the polymer resin layer that absorbs water, high fluffy non-woven fabrics, the polymer resin layer that absorbs water down, centre gripping curtain of mesh and isolation layer down, the centre gripping curtain of mesh includes a plurality of mesh compactness portions and the sparse portion of mesh, two liang of contacts in mesh compactness portion, mesh compactness portion corresponds the polymer unit that absorbs water of polymer resin layer and lower polymer resin layer respectively, the sparse portion of mesh corresponds respectively go up the guiding gutter on polymer resin layer that absorbs water and the polymer resin layer down. According to the invention, the clamping net curtains are arranged on the upper high-molecular water-absorbing resin layer and the lower high-molecular water-absorbing resin layer, the high-molecular water-absorbing resin spread on the high-fluffy non-woven fabric is positioned and distributed into the high-molecular water-absorbing units through the net control dense part, the arrangement and the arrangement of the units are more complicated, and a more complicated transmission passage is formed in the length direction of the water-absorbing paper. The composite absorbent paper is usually produced in an off-line mode and is formed by a plurality of processes such as rolling, slitting, folding, packaging and the like. However, the existing composite absorbent paper still has many defects, and 1, the existing composite absorbent paper has certain loss of softness of materials through physical compression processes such as packaging, logistics and the like; 2. the existing composite absorbent paper is affected by physical compression, so that the liquid absorption space is damaged, and the absorption speed is not fast; 3. the existing composite absorbent paper is limited and influenced by the production process, the diffusion length of the material is short, and the effective utilization rate of macromolecules is not high.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides an ultrathin paper diaper core body which solves the technical problems that the existing composite absorbent paper is not high in softness, not high in absorption speed and not high in effective utilization rate of high polymers due to physical compression. Based on the method, a manufacturing method of the ultrathin paper diaper core body is also provided.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an ultra-thin type panty-shape diapers core, includes the body, the body is including superimposed wood pulp spunlace cloth in proper order, absorption upper strata, fluffy non-woven fabrics, absorption lower floor, viscose spunlace cloth, absorption upper strata is including locating two second SAP layers at middle part, locating the first SAP layer in two second SAP layer outsides, is equipped with first clearance between two second SAP layers, is equipped with the second clearance between each first SAP layer and the adjacent second SAP layer, absorb the lower floor including locating two third SAP layers at middle part, locate the fourth SAP layer in two third SAP layer outsides, be equipped with the third clearance between two third SAP layers, be equipped with the fourth clearance between each third SAP layer and the adjacent fourth SAP layer, the projection of first clearance on the horizontal plane is located the projection of third clearance on the horizontal plane, the projection of each second clearance on the horizontal plane is located the projection of fourth clearance on the horizontal plane, wood pulp spunlace cloth passes through the mode of thermal compression and fluffy non-woven fabrics, Viscose spunlace, wherein bonding parts of the wood pulp spunlace, the fluffy non-woven fabric and the viscose spunlace form three bonding parts, the three bonding parts are respectively arranged in a first gap and two second gaps and respectively arranged in a third gap and a fourth gap, the water absorption multiplying powers of the first SAP layer and the fourth SAP layer are not less than 59g/g, the water absorption multiplying power of the third SAP layer is not less than 57g/g, the water absorption multiplying power of the second SAP layer is not less than 40g/g, the water absorption multiplying power of the first SAP layer, the water absorption multiplying power of the fourth SAP layer and the water absorption multiplying power of the third SAP layer are all greater than the water absorption multiplying power of the second SAP layer, the water absorption multiplying power of the first SAP layer and the water absorption multiplying power of the fourth SAP layer are all greater than the water absorption multiplying power of the third SAP layer, the liquid passing speed of the second SAP layer is not greater than 30s, and the water retention multiplying power of the third SAP layer is not less than 37g/g, the first SAP layer and the fourth SAP layer have an absorption speed of not more than 40 s.
Further, the first SAP layer and the fourth SAP layer are the same material.
Further, the absorbent capacity under pressure of the first SAP layer is not less than 24g/g, the absorbent capacity under pressure of the second SAP layer is not less than 25g/g, and the absorbent capacity under pressure of the third SAP layer is not less than 31 g/g.
Further, the width of the first gap is not less than the width of the second gap, and the width of the third gap is not less than the width of the fourth gap.
Further, the wood pulp spun-bonded weight ratio of the wood pulp spunlace fabric is 6-7.5: 2.5-3.5.
Further, the ratio of the polyester to the viscose of the viscose spunlace fabric is 6-7.5: 2.5-3.5.
A manufacturing process of an ultrathin paper diaper core based on the same invention concept comprises the following steps:
firstly, inputting viscose spunlace, and spraying glue to the upper surface of the viscose spunlace at intervals along the width direction, so as to form four rows of first glue layers corresponding to a fourth SAP layer, a third SAP layer and a fourth SAP layer, a third gap is formed between the two third SAP layers, a fourth gap is formed between each fourth SAP layer and the third SAP layer, the first glue layers are in a folded line shape, and the maximum distance between adjacent folded lines is not more than 3 mm;
secondly, inputting fluffy non-woven fabrics, compounding the fluffy non-woven fabrics on the viscose spunlace fabrics, and spraying a fourth SAP layer and a third SAP layer on the viscose spunlace fabrics during compounding, so that the fourth SAP layer and the third SAP layer are respectively positioned on the corresponding positions of the first glue layer, and the fourth SAP layer and the third SAP layer are clamped between the viscose spunlace fabrics and the fluffy non-woven fabrics to form an absorption lower layer;
thirdly, rolling is carried out, so that the effective combination of the viscose spunlace fabric and the fluffy non-woven fabric is realized;
fourthly, inputting the wood pulp spunlace, and spraying glue on the lower surface of the wood pulp spunlace at intervals along the width direction, so that four rows of second glue layers corresponding to the first SAP layer, the second SAP layer and the first SAP layer are formed, the second glue layers are in a broken line shape, and the maximum distance between every two adjacent broken lines is larger than 3mm and smaller than 5 mm;
fifthly, compounding the wood pulp spunlace fabric and the fluffy non-woven fabric, and spraying a first SAP layer and a second SAP layer on the fluffy non-woven fabric before compounding, so that the first SAP layer and the second SAP layer are respectively positioned on the corresponding positions of the second glue layers, and the first SAP layer and the second SAP layer are clamped between the fluffy non-woven fabric and the wood pulp spunlace fabric to form an absorption upper layer;
sixthly, rolling to realize effective compounding of the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric;
seventhly, performing hot pressing on the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric which are compounded, so that a first indentation is formed in a first gap between the two second SAP layers, and a second indentation is formed in a second gap between the second SAP layers and the first SAP layer;
and eighthly, outputting and cutting to form an independent absorption core body.
Furthermore, the width of the folding lines of the first adhesive layer and the second adhesive layer is larger than 1mm and smaller than 2 mm.
Furthermore, the first indentation consists of two first indentation lines in a broken line shape, the two first indentation lines are mutually staggered and enclosed to form a plurality of rhombus-shaped enclosing areas, each first indentation line consists of a plurality of first indentation points, and three first indentation points form a broken line segment.
Further, in the first step, a third glue layer is sprayed in the middle of the third gap and the fourth gap, and in the second step, a water-repellent plastic film is laid on the third glue layer, wherein the width of the water-repellent plastic film is 1/6-2/3 of the third gap or the fourth gap.
By adopting the technical scheme, the invention has the beneficial effects that:
1. through the subregion setting of first SAP layer, second SAP layer, third SAP layer, fourth SAP layer, can effectively exert the absorption characteristics of different grade type macromolecules, promote the absorption efficiency of core. Through the arrangement of the first SAP layer and the fourth SAP layer, the absorption multiplying power of two sides of the body is large, so that the side leakage can be effectively reduced, and the absorption speed of the first SAP layer and the absorption speed of the fourth SAP layer are less than 40s, so that the liquid can be absorbed from the middle part and seeped downwards or diffused along the third gap and the fourth gap. The second SAP layer is arranged, the liquid passing speed is not more than 30, the liquid passing speed of the middle part of the upper absorbing layer can be higher, and therefore liquid infiltration is effectively achieved. The third gap, the fourth gap, the first gap and the second gap can effectively realize the diffusion speed of body fluid along the length direction, provide the absorption efficiency, and therefore the effective utilization rate of the polymer is improved. The setting of third SAP layer, its guarantor's water rate is great, the absorption rate is great, can realize adsorbing, keeping fast moisture, effectively prevents the reverse osmosis. The arrangement of the different types of polymers can realize an absorption core with more advantages, so that the practicability of the absorption core is better. While wood pulp spunlace can achieve enhanced absorption. And wood pulp spunlace cloth passes through the mode of hot pressing and bonds with fluffy non-woven fabrics, viscose spunlace cloth, the bonding position of wood pulp spunlace cloth, fluffy non-woven fabrics, viscose spunlace cloth forms the joint portion, the joint portion is three, locates in first clearance, two second clearances respectively, and locates in third clearance, the fourth clearance respectively, can effectively guarantee the absorbent property's of body assurance like this, reduces compliance loss, the absorbent property loss because physics pressfitting produces.
2. The absorption rate under pressure of first SAP layer is not less than 24g/g, the absorption rate under pressure of second SAP layer is not less than 25g/g, the absorption rate under pressure of third SAP layer is not less than 31g/g, and the absorption rate under pressure of third SAP layer > the absorption rate under pressure of second SAP layer > the absorption rate under pressure of first SAP layer, can effectively realize like this that the absorption of body fluid is concentrated, realizes absorbing the middle part of lower floor and realizes high-efficient absorption, guarantor.
3. The wood pulp spunlace fabric is characterized in that the wood pulp spunlace weight ratio of the wood pulp spunlace fabric is 6-7.5: 2.5-3.5, so that the absorption of body fluid can be effectively accelerated, and the terylene-viscose ratio of the viscose spunlace fabric is 6-7.5: 2.5-3.5, so that the effects of ventilation and reduction of body fluid leakage can be effectively realized.
4. In the manufacturing process of the ultra-thin paper diaper core body, the first glue layer is in a broken line shape, compared with common spraying, the reduction of glue amount can be effectively realized, the reduction of softness of the body caused by the use of glue is effectively avoided, the maximum distance between adjacent broken lines is not more than 3mm, the adhesion to the third SAP layer and the fourth SAP layer can be effectively realized, and in addition, the glue has a diffusion effect after being sprayed, so that the adhesion to the third SAP layer and the fourth SAP layer can be further improved. And the second glue film is greater than 3mm and is less than 5mm at the biggest interval between its adjacent broken line on the function basis that possesses first glue film, and the setting is because first SAP layer, second SAP layer can be restricted on fluffy non-woven fabrics because of the factor of lower limit like this, and the glue quantity can reduce to effectively improve compliance. And (4) rolling is carried out, and the rolling pressure is low as long as the effective compounding of the viscose spunlace fabric and the fluffy non-woven fabric can be realized. And (4) rolling is carried out, and the rolling pressure is lower as long as the effective compounding of the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric can be realized.
5. The first indentation is composed of two first indentation lines in a folded line shape, the two first indentation lines are mutually staggered and enclosed to form a plurality of rhombus-shaped enclosing areas, each first indentation line is composed of a plurality of first indentation points, and three first indentation points form a folded line segment. Moreover, the hot pressing is realized in a point pressing mode, so that the reduction of softness caused by pressing can be effectively reduced while the stability of the hot pressing is ensured, the overall performance of the body is better, and the softness is higher. And the sunken area that first indentation line formed also can effectively guarantee the water conservancy diversion of body fluid, diffusion. The second indentation and the first indentation are formed by the same structure.
6. The third glue layer can adopt an intermittent glue dispensing mode, the third glue layer only needs to ensure that the water-repellent plastic film can be adhered without emphasizing the firmness, and the optimal mode adopts three-section glue dispensing to ensure that the front, middle and rear three parts all have glue to adhere the water-repellent plastic film. The water-repellent plastic film can be beneficial to diversion of body fluid, and has water repellency, so that the body fluid can be guided to flow along the surface of the water-repellent plastic film, and the diversion effect is improved. When the water-repellent plastic film is arranged, the water-repellent plastic film can be in a micro-arc shape, namely, the two sides of the water-repellent plastic film in the width direction are higher, and the middle part is lower, so that the flow guide effect is effectively enhanced. And the width of the water-repellent plastic film is 1/6-2/3 of the third gap or the fourth gap, so that the water-repellent plastic film can be ensured not to influence the absorption of the third SAP layer and the fourth SAP layer.
Drawings
FIG. 1 is a schematic structural view of a laminated state of the present invention;
FIG. 2 is a schematic structural view of a first cladding mode of the present invention;
FIG. 3 is a schematic structural view of a second cladding mode of the present invention;
FIG. 4 is a schematic cross-sectional structural view of the present invention;
FIG. 5 is a schematic cross-sectional view at A in FIG. 4;
fig. 6 is a schematic structural view of the first adhesive layer, the second adhesive layer, the first indentations and the second indentations of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1, 4 and 5, the present embodiment provides an ultra-thin diaper core, which includes a body, the body includes a wood pulp spunlace 1, an absorption upper layer 2, a fluffy nonwoven fabric 3, an absorption lower layer 4 and a viscose spunlace 5, which are sequentially stacked, the absorption upper layer 2 includes two second SAP layers 22 disposed in the middle, and first SAP layers 21 disposed on the outer sides of the two second SAP layers 22, a first gap 23 is disposed between the two second SAP layers 22, a second gap 24 is disposed between each first SAP layer 21 and the adjacent second SAP layer 22, the absorption lower layer 4 includes two third SAP layers 41 disposed in the middle, and fourth SAP layers 42 disposed on the outer sides of the two third SAP layers 41, a third gap 43 is disposed between the two third SAP layers 41, a fourth gap 44 is disposed between each third SAP layer 41 and the adjacent fourth SAP layer 42, a projection of the first gap 23 on a horizontal plane is located in a projection of the third gap 43 on a horizontal plane, the projection of each second gap 24 in the horizontal plane is located within the projection of the fourth gap 44 in the horizontal plane, the first SAP layer 21, the second SAP layer 22 are bonded to the wood pulp spunlace 1 by the first glue layer 6, and the third SAP layer 41, the fourth SAP layer 42 are bonded to the viscose spunlace 5 by the second glue layer 7. Wood pulp spunlace 1 bonds with fluffy non-woven fabrics 3, viscose spunlace 5 through the mode of hot pressfitting, wood pulp spunlace 1, fluffy non-woven fabrics 3, the bonding position of viscose spunlace 5 form joint portion 8, joint portion 8 is three, locates respectively in first clearance 23, two second clearance 24, and locates respectively in third clearance 43, the fourth clearance 44. The first SAP layer 21 and the fourth SAP layer 42 are of the same material. The middle parts of the third gap 43 and the fourth gap 44 are provided with a water-repellent plastic film 9, and the water-repellent plastic film 9 is adhered to the viscose spunlace 5 through a third adhesive layer 91. The water-repellent plastic film 9 is formed into a curved shape with high ends and low middle in the width direction, and the curve can be formed before input, and known materials such as TPR can be adopted. The width of the water-repellent plastic film 9 is 1/6-2/3 of the fourth gap 44, which is 1/3 in the embodiment.
The water absorption capacity of the first SAP layer, the water absorption capacity of the fourth SAP layer and the water absorption capacity of the third SAP layer are all larger than the water absorption capacity of the second SAP layer, the water absorption capacity of the first SAP layer and the water absorption capacity of the fourth SAP layer are all larger than the water absorption capacity of the third SAP layer, and the water absorption capacities of the first SAP layer and the fourth SAP layer are not smaller than 59g/g, for example, corresponding super absorbent resin in the range of 65-70 g/g is taken. The water absorption capacity of the third SAP layer is not less than 57g/g, such as taking corresponding super absorbent resin in the range of 60-64 g/g. The water absorption capacity of the second SAP layer is not less than 40g/g, such as the range of 41-45 g/g of corresponding super absorbent resin. Of course, the above range is only an example, and other ranges satisfying the adjustment are possible.
The liquid passing speed of the second SAP layer is not more than 30s, such as the corresponding super absorbent resin within the range of 25-28 s. The water retention capacity of the third SAP layer is not less than 37g/g, for example, the corresponding super absorbent resin is taken in the range of 38-40 g/g. The absorption speed of the first SAP layer and the absorption speed of the fourth SAP layer are not more than 40s, for example, the absorption speed is within the range of 33-38 s. The absorption capacity under pressure of the first SAP layer is not less than 24g/g, such as taking the corresponding super absorbent resin in the range of 25-28 g/g. The absorption capacity under pressure of the second SAP layer is not less than 25g/g, such as 26-30 g/g. The absorption capacity under pressure of the third SAP layer is not less than 31g/g, such as 33-36 g/g. Of course, the above range is only an example, and other ranges satisfying the adjustment are possible.
The first SAP layer, the second SAP layer, the third SAP layer and the fourth SAP layer can adopt conventional high-molecular water-absorbent resin, and the selection of the types can be carried out as required as long as corresponding parameters are met.
The width of first clearance is not less than the width in second clearance, the width in third clearance is not less than the width in fourth clearance, and 5 ~ 15 mm's scope can be got to first clearance, third clearance, and 5 ~ 10 mm's scope can be got to second clearance, fourth clearance, and in specific this embodiment, first clearance, third clearance are 10mm, and second clearance, fourth clearance are 7 mm.
The wood pulp spun-bonded weight ratio of the wood pulp spunlace fabric is 6-7.5: 2.5-3.5, and in the embodiment, the ratio is 7: 3. The ratio of the polyester to the adhesive of the adhesive spunlace fabric is 6-7.5: 2.5-3.5, in this embodiment, 7:3 is taken.
The two sides of the above-mentioned viscose spunlace fabric 5 can also be wrapped up on the wood pulp spunlace fabric 1, as shown in fig. 2. The viscose spunlace 5 and the wood pulp spunlace 1 can also be coated by another outer coating layer, as shown in fig. 3.
The first adhesive layer and the second adhesive layer are both in a folded line shape, as shown in fig. 6.
A manufacturing process of an ultrathin paper diaper core based on the same invention concept comprises the following steps:
firstly, inputting viscose spunlace, and spraying glue to the upper surface of the viscose spunlace at intervals along the width direction, so as to form four rows of first glue layers corresponding to a fourth SAP layer, a third SAP layer and a fourth SAP layer, a third gap is formed between the two third SAP layers, a fourth gap is formed between each fourth SAP layer and the third SAP layer, the first glue layer is in a folded line shape, the maximum distance between adjacent folded lines is not more than 3mm, and a third glue layer is sprayed at the middle part of the third gap and the fourth gap;
secondly, inputting fluffy non-woven fabrics, compounding the fluffy non-woven fabrics on the viscose spunlace fabrics, spraying a fourth SAP layer and a third SAP layer on the viscose spunlace fabrics during compounding, so that the fourth SAP layer and the third SAP layer are respectively positioned on the corresponding positions of the first glue layer, the fourth SAP layer and the third SAP layer are clamped between the viscose spunlace fabrics and the fluffy non-woven fabrics to form an absorption lower layer, and a water-repellent plastic film is laid on the third glue layer, wherein the width of the water-repellent plastic film is 1/3 of a third gap;
thirdly, rolling is carried out, so that the effective combination of the viscose spunlace fabric and the fluffy non-woven fabric is realized;
fourthly, inputting the wood pulp spunlace, and spraying glue on the lower surface of the wood pulp spunlace at intervals along the width direction, so that four rows of second glue layers corresponding to the first SAP layer, the second SAP layer and the first SAP layer are formed, the second glue layers are in a broken line shape, and the maximum distance between every two adjacent broken lines is larger than 3mm and smaller than 5 mm;
fifthly, compounding the wood pulp spunlace fabric and the fluffy non-woven fabric, and spraying a first SAP layer and a second SAP layer on the fluffy non-woven fabric before compounding, so that the first SAP layer and the second SAP layer are respectively positioned on the corresponding positions of the second glue layers, and the first SAP layer and the second SAP layer are clamped between the fluffy non-woven fabric and the wood pulp spunlace fabric to form an absorption upper layer;
sixthly, rolling to realize effective compounding of the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric;
seventhly, performing hot pressing on the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric which are compounded, so that a first indentation is formed in a first gap between the two second SAP layers, and a second indentation is formed in a second gap between the second SAP layers and the first SAP layer;
and eighthly, outputting and cutting to form an independent absorption core body.
The width of the folding lines of the first adhesive layer and the second adhesive layer is more than 1mm and less than 2 mm.
The first indentation 10 is composed of two first indentation lines in a broken line shape, the two first indentation lines are mutually staggered and surrounded to form a plurality of rhombic surrounding areas, each first indentation line is composed of a plurality of first indentation points 101, three first indentation points 101 form a broken line section, and the second indentation 20 and the first indentation 10 have the same structure, as shown in fig. 6.
During actual production, the width of viscose spunlace fabric, fluffy non-woven fabric and wood pulp spunlace fabric can be wider, so that the width of the viscose spunlace fabric is larger than the outer sides of the first SAP layer and the fourth SAP layer, and therefore, blank areas are reserved on two sides in the width direction and are not provided with SAP materials.
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. The utility model provides an ultra-thin type panty-shape diapers core which characterized in that: the multifunctional sanitary towel comprises a body, the body is including superimposed wood pulp spunlace cloth in proper order, absorption upper strata, fluffy non-woven fabrics, absorption lower floor, viscose spunlace cloth, absorption upper strata is including locating two second SAP layers at middle part, locating the first SAP layer in two second SAP layer outsides, be equipped with first clearance between two second SAP layers, be equipped with the second clearance between each first SAP layer and the adjacent second SAP layer, absorb the lower floor including locating two third SAP layers at middle part, locate the fourth SAP layer in two third SAP layer outsides, be equipped with the third clearance between two third SAP layers, be equipped with the fourth clearance between each third SAP layer and the adjacent fourth SAP layer, the projection of first clearance on the horizontal plane is located the projection of third clearance on the horizontal plane, and the projection of each second clearance on the horizontal plane is located the projection of fourth clearance on the horizontal plane, wood pulp spunlace cloth passes through the mode of thermal compression and fluffy non-woven fabrics, Viscose spunlace, wherein bonding parts of the wood pulp spunlace, the fluffy non-woven fabric and the viscose spunlace form three bonding parts, the three bonding parts are respectively arranged in a first gap and two second gaps and respectively arranged in a third gap and a fourth gap, the water absorption multiplying powers of the first SAP layer and the fourth SAP layer are not less than 59g/g, the water absorption multiplying power of the third SAP layer is not less than 57g/g, the water absorption multiplying power of the second SAP layer is not less than 40g/g, the water absorption multiplying power of the first SAP layer, the water absorption multiplying power of the fourth SAP layer and the water absorption multiplying power of the third SAP layer are all greater than the water absorption multiplying power of the second SAP layer, the water absorption multiplying power of the first SAP layer and the water absorption multiplying power of the fourth SAP layer are all greater than the water absorption multiplying power of the third SAP layer, the liquid passing speed of the second SAP layer is not greater than 30s, and the water retention multiplying power of the third SAP layer is not less than 37g/g, the first SAP layer and the fourth SAP layer have an absorption speed of not more than 40 s.
2. The ultra-thin diaper core of claim 1, wherein: the first SAP layer and the fourth SAP layer are the same material.
3. The ultra-thin diaper core of claim 2, wherein: the first SAP layer has an absorbency under pressure of not less than 24g/g, the second SAP layer has an absorbency under pressure of not less than 25g/g, and the third SAP layer has an absorbency under pressure of not less than 31 g/g.
4. The ultra-thin diaper core of claim 1, wherein: the width of the first gap is not less than that of the second gap, and the width of the third gap is not less than that of the fourth gap.
5. The ultra-thin diaper core of claim 1, wherein: the wood pulp spun-bonded weight ratio of the wood pulp spunlace fabric is 6-7.5: 2.5-3.5.
6. The ultra-thin diaper core of claim 1, wherein: the ratio of the polyester to the adhesive of the adhesive spunlace fabric is 6-7.5: 2.5-3.5.
7. The process for manufacturing the ultra-thin diaper core according to any one of claims 1 to 6, comprising the steps of:
firstly, inputting viscose spunlace, and spraying glue to the upper surface of the viscose spunlace at intervals along the width direction, so as to form four rows of first glue layers corresponding to a fourth SAP layer, a third SAP layer and a fourth SAP layer, a third gap is formed between the two third SAP layers, a fourth gap is formed between each fourth SAP layer and the third SAP layer, the first glue layers are in a folded line shape, and the maximum distance between adjacent folded lines is not more than 3 mm;
secondly, inputting fluffy non-woven fabrics, compounding the fluffy non-woven fabrics on the viscose spunlace fabrics, and spraying a fourth SAP layer and a third SAP layer on the viscose spunlace fabrics during compounding, so that the fourth SAP layer and the third SAP layer are respectively positioned on the corresponding positions of the first glue layer, and the fourth SAP layer and the third SAP layer are clamped between the viscose spunlace fabrics and the fluffy non-woven fabrics to form an absorption lower layer;
thirdly, rolling is carried out, so that the effective combination of the viscose spunlace fabric and the fluffy non-woven fabric is realized;
fourthly, inputting the wood pulp spunlace, and spraying glue on the lower surface of the wood pulp spunlace at intervals along the width direction, so that four rows of second glue layers corresponding to the first SAP layer, the second SAP layer and the first SAP layer are formed, the second glue layers are in a broken line shape, and the maximum distance between every two adjacent broken lines is larger than 3mm and smaller than 5 mm;
fifthly, compounding the wood pulp spunlace fabric and the fluffy non-woven fabric, and spraying a first SAP layer and a second SAP layer on the fluffy non-woven fabric before compounding, so that the first SAP layer and the second SAP layer are respectively positioned on the corresponding positions of the second glue layers, and the first SAP layer and the second SAP layer are clamped between the fluffy non-woven fabric and the wood pulp spunlace fabric to form an absorption upper layer;
sixthly, rolling to realize effective compounding of the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric;
seventhly, performing hot pressing on the viscose spunlace fabric, the fluffy non-woven fabric and the wood pulp spunlace fabric which are compounded, so that a first indentation is formed in a first gap between the two second SAP layers, and a second indentation is formed in a second gap between the second SAP layers and the first SAP layer;
and eighthly, outputting and cutting to form an independent absorption core body.
8. The manufacturing process of the ultra-thin paper diaper core body according to claim 7, wherein: the width of the folding lines of the first adhesive layer and the second adhesive layer is larger than 1mm and smaller than 2 mm.
9. The manufacturing process of the ultra-thin paper diaper core body according to claim 7, wherein: the first indentation consists of two first crease lines in a broken line shape, the two first crease lines are mutually staggered and encircled to form a plurality of rhombus-shaped encircling areas, each first crease line consists of a plurality of first indentation points, and three first indentation points form a broken line segment.
10. The manufacturing process of the ultra-thin paper diaper core body according to claim 7, wherein: in the first step, a third glue layer is sprayed in the middle of a third gap and a fourth gap, and in the second step, a water-repellent plastic film is laid on the third glue layer, wherein the width of the water-repellent plastic film is 1/6-2/3 of the third gap or the fourth gap.
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| CN113786284A (en) * | 2021-08-31 | 2021-12-14 | 福建恒安集团有限公司 | Paper diaper core body manufacturing process |
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Effective date of registration: 20221130 Address after: 362261 No.1, Jingyang West Road, Neikeng (Neikeng brand industrial city), Jinjiang City, Quanzhou City, Fujian Province Patentee after: FUJIAN HENGAN HOUSEHOLD LIFE ARTICLE 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: FUJIAN HENGAN HOUSEHOLD LIFE ARTICLE Co.,Ltd. Patentee before: HENGAN (CHINA) HYGIENE PRODUCTS Co.,Ltd. |