CN113476213B - Application process of side-leakage-preventing absorption article - Google Patents
Application process of side-leakage-preventing absorption article Download PDFInfo
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- CN113476213B CN113476213B CN202110879965.2A CN202110879965A CN113476213B CN 113476213 B CN113476213 B CN 113476213B CN 202110879965 A CN202110879965 A CN 202110879965A CN 113476213 B CN113476213 B CN 113476213B
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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
- A61F13/15577—Apparatus or processes for manufacturing
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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
- A61F13/45—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 articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
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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
- A61F13/45—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 articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
- A61F13/49426—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier having an absorbent medium
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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
- A61F13/45—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 articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49466—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the waist region
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- 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 technical field of production of sanitary products, in particular to a process for applying an absorption article for preventing side leakage, which comprises the following steps: 1. preparing a liquid-permeable top layer; the first step comprises the following steps: a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the transverse two side end parts of the lower surface of the hydrophilic non-woven fabric I to form bonding points I; b. conveying two hydrophobic non-woven fabrics I in the same direction above two transverse sides of the hydrophilic non-woven fabric I, and enabling the part outside the hydrophilic non-woven fabric I to be folded downwards and inwards through a folding mechanism and to be in contact with and bonded with the bonding point I; c. glue is applied to the end part, close to the unfolded end, of the upper surface of the first hydrophobic non-woven fabric to form a second adhesive point, so that the problem of side leakage caused by the fact that two sides of the front end and the rear end of the existing absorption article are seeped out from the leakage-proof separation edges is solved, and the production process and related equipment are adjusted.
Description
Technical Field
The invention relates to the technical field of production of sanitary products, in particular to an application process of an absorption article for preventing side leakage.
Background
The leg elastic telescopic rubber band is only jointed between the surface layer and the bottom layer in the crotch part area in the production process of the disposable absorbent article, and the surface layer is not jointed with the bottom layer at the corresponding position of the leg elastic telescopic rubber band in the front waistline area and the back waistline area, so that a non-bonding area with a certain bandwidth exists. The wearer's excreta diffuse laterally from the topsheet and leak out in the unbonded areas. The leaked excreta contaminates the wearer's clothing, causing the disposable absorbent article to fail.
The present applicant has a prior application CN 202682192U, which discloses a disposable absorbent article structurally having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet, and having a front waist region, a crotch region and a rear waist region in a longitudinal direction, the length and width of the absorbent article being the maximum length and the maximum width in the longitudinal direction and the transverse direction of the absorbent article, respectively. The longitudinal length of the surface layer material is the same as the length of the absorption article, the transverse width is between the width of the absorption core and the width of the absorption article, the surface layer material is jointed on the bottom layer material at the area outside the peripheral edge (periphery) of the absorption core, the transverse two sides of the absorption article are provided with a left leakage-proof separating edge and a right leakage-proof separating edge which extend along the longitudinal direction, the transverse outer side of the longitudinal edge of the absorption core is respectively provided with a leg-surrounding elastic expansion part which extends along the longitudinal direction at least at the crotch area, and the leakage-proof separating edge material is jointed on the surface layer material and the bottom layer material at the transverse outer side of the longitudinal edge of the absorption core.
The application is a technical extension on the basis of the method.
Disclosure of Invention
Therefore, the invention provides a process for applying an anti-side leakage absorbent article, which solves the problem of side leakage caused by the fact that the two sides of the existing absorbent article close to the front end and the rear end of the anti-leakage separating edge seep out, and adjusts the production process and related equipment.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a process for applying a side-leakage resistant absorbent article, comprising the steps of:
1. preparing a liquid-permeable top layer;
2. preparing an absorbent core;
3. preparing a liquid impermeable back sheet;
4. preparing a leakage-proof partition edge;
5. the products of step one, two, three are set up the rigid coupling together in a layer upon layer, set up the leak protection that step four got on the liquid-tight bottom layer of absorption core both sides along the symmetry simultaneously, later carry out the arc and cut edge and handle and cut the back and form single absorption article, wherein, above-mentioned step one includes:
a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the transverse two side end parts of the lower surface of the hydrophilic non-woven fabric I to form bonding points I;
b. conveying two hydrophobic non-woven fabrics I in the same direction above two transverse sides of the hydrophilic non-woven fabric I, and enabling the part outside the hydrophilic non-woven fabric I to be folded downwards and inwards through a folding mechanism and to be in contact with and bonded with the bonding point I;
c. gluing the upper surfaces of the two hydrophobic non-woven fabrics I, which are close to the end part of the unfolded end to form a second adhesive point;
in the fifth step, the leakage-proof separation edge cover is arranged above the end parts of the two transverse sides of the liquid-permeable surface layer, and the transverse middle part of the leakage-proof separation edge is bonded and attached with the bonding point II so as to be bonded with the hydrophobic non-woven fabric I.
Preferably, the step b further comprises:
b1, gluing the lower end surfaces of the two hydrophobic non-woven fabrics and the end part of the end part opposite to the first bonding point to form a third bonding point;
b2, arranging a second hydrophilic non-woven fabric below the third bonding point, and applying SAP on the upper surface of the second hydrophilic non-woven fabric to form a partition edge absorption core layer;
b3, bonding and molding the product obtained in the step b2 and the bonding point III.
Preferably, in step b2, the SAP on the barrier absorbent core layer is arranged at intervals along the transverse direction of the second hydrophilic nonwoven fabric.
Preferably, in the fifth step, the leakage preventing partition is partially bonded to the liquid-impermeable back sheet to form a base portion bonded to the liquid-impermeable back sheet and a free portion which is not bonded, and the leg elastic stretchable member is provided in the base portion.
Preferably, in the step b, a leg elastic member is applied to a lower end of a portion of the first hydrophobic nonwoven fabric located outside the first hydrophilic nonwoven fabric, and then the first hydrophobic nonwoven fabric is folded downward and inward and is in contact with and bonded to the first bonding point.
In accordance with the above production object, there is provided another process for applying an absorbent article for preventing side leakage, comprising the steps of:
1. preparing a liquid-permeable surface layer;
2. preparing an absorbent core;
3. preparing a liquid impermeable backsheet;
4. laminating and fixedly connecting the products obtained in the first step, the second step and the third step together, then carrying out arc-shaped edge cutting treatment and cutting to form a single absorption article, wherein the first step comprises the following steps:
a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the upper surface and the lower surface of the end parts of the two transverse sides of the hydrophilic non-woven fabric I to form an upper bonding point I and a lower bonding point I;
b. conveying two hydrophobic non-woven fabrics I in the same direction above the two transverse sides of the hydrophilic non-woven fabric I, applying a side separating rubber band on one transverse side end of the hydrophilic non-woven fabric I, folding the side end part by a folding mechanism to wrap the side separating rubber band, and bonding;
c. folding the part of the hydrophobic non-woven fabric outside the hydrophilic non-woven fabric downwards and inwards by a folding mechanism, contacting and bonding the part of the hydrophobic non-woven fabric with the lower bonding point I, and bonding the transverse middle part of the hydrophobic non-woven fabric I with the upper bonding point I to obtain the liquid-permeable surface layer;
in the fourth step, the first two hydrophobic non-woven fabrics are partially bonded with the liquid-tight bottom layer to form a base end part bonded with the liquid-tight bottom layer and a free part which is not bonded.
Preferably, the first step further comprises:
d, gluing the middle parts of the lower end surfaces of the two hydrophobic non-woven fabrics to form a second adhesive point;
e. a second hydrophilic non-woven fabric is arranged below the second bonding point, and SAP is applied to the upper surface of the second hydrophilic non-woven fabric to form a separation edge absorption core layer;
f. and e, bonding and molding the product obtained in the step e and the bonding point II.
Preferably, in step e, the SAPs on the barrier absorbent core layer are arranged at intervals along the transverse direction of the second hydrophilic nonwoven fabric.
Preferably, a leg elastic member is provided in the proximal end portion.
Preferably, in the step c, a leg elastic member is applied to a lower end of a portion of the first hydrophobic nonwoven fabric positioned outside the first hydrophilic nonwoven fabric, and then, the first hydrophobic nonwoven fabric is folded downward and inward and is brought into contact with and bonded to the first lower bonding point.
By adopting the technical scheme, the invention has the beneficial effects that:
the technical scheme aims at the situation that the liquid permeable surface layer and the liquid impermeable bottom layer of the front waistline region and the rear waistline region are easy to cause side leakage due to the fact that a non-bonding area is formed under the action of the leg elastic telescopic parts, in production, the width size of the liquid permeable surface layer is designed, the transverse size of the liquid permeable surface layer is shortened, the transverse end portion of the liquid permeable surface layer is wrapped by the added hydrophobic non-woven fabric, structurally, the hydrophobic non-woven fabric extends along the longitudinal direction of the absorbing article to enable the hydrophobic non-woven fabric to be a connecting part between the liquid permeable surface layer and the liquid impermeable bottom layer and is distributed along the longitudinal direction of the whole absorbing article, and the side leakage situation is avoided on the product;
in the production, according to the industrial production process of high-speed production of the absorbent articles, the production steps are improved, and the concrete steps of corresponding sizing, folding, SAP adding and the like are added, so that the corresponding products can be produced at high speed, and the yield and the efficiency are ensured.
Drawings
FIG. 1 is a schematic view of a laminated structure of a product obtained according to an embodiment of the present invention;
FIG. 2 is a schematic process flow diagram according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a laminated structure of a product obtained in a second embodiment of the present invention;
FIG. 4 is a schematic process flow diagram according to a first embodiment of the present invention;
FIG. 5 is a schematic view of a laminated structure of a product obtained in the third embodiment of the present invention;
FIG. 6 is a schematic process flow diagram of a third embodiment of the present invention;
FIG. 7 is a schematic view of a laminated structure of a product obtained in accordance with a fourth embodiment of the present invention;
FIG. 8 is a schematic process flow diagram of a fourth embodiment of the present invention;
FIG. 9 is a schematic view of a laminated structure of a product obtained in the fifth embodiment of the present invention;
fig. 10 is a schematic process flow diagram of a fifth embodiment of the present invention.
Detailed Description
The following detailed description will be given with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example one
Referring to fig. 1 and 2, referring to fig. 1, a side leakage preventing absorbent article comprises an absorbent article body (see the prior application CN 202682192U of the present applicant for the development of the absorbent article body), the absorbent article body comprises a liquid permeable surface layer 1, a liquid impermeable back layer 2, and an absorbent core 3 disposed between the liquid permeable surface layer 1 and the liquid impermeable back layer 2, the absorbent article body is defined to have a longitudinal direction of a length direction and a transverse direction of a width direction, leakproof isolation edges 4 extending along the longitudinal direction are disposed at both transverse sides of the absorbent article body, leg circumference elastic stretching members 5 extending along the longitudinal direction are disposed on the absorbent article body outside both transverse side ends of the liquid permeable surface layer 1, specifically, the leg circumference elastic stretching members 5 are 3 elastic stretching rubber bands extending along the longitudinal direction at a transverse interval, and a stretching ratio of the elastic stretching rubber bands is 1.2;
coating layers 6 which coat the two side ends are arranged at the two transverse side ends of the liquid-permeable surface layer 1, wherein the coating layers 6 are made of hydrophobic non-woven fabrics; the covering layer 6 is provided with an upper covering part 61 positioned above the liquid-permeable surface layer 1, a lower covering part 62 positioned below the liquid-permeable surface layer 1 and a folding part 63 which is not contacted with the liquid-permeable surface layer 1 according to different positions, the upper covering part 61 is attached to the leakage-proof separation edge 4 and can stand up along with the leakage-proof separation edge 4, and the upper covering part 61 is adhered to the upper surface of the liquid-permeable surface layer 1 (the adhesion points of the covering layer 6, the lower part of the liquid-permeable surface layer 1 and the leakage-proof separation edge 4 are shown in fig. 1, and the adhesion among the structures of the layers of the absorbing article with the conventional structure is not shown for the sake of clear illustration); moreover, the leg elastic extensible part 5 and the folding part 63 are not overlapped in the expansion projection of the absorbent article, that is, the leg elastic extensible part 5 is embedded in the bonding position between the leakage-proof separation edge 4 and the liquid-tight bottom layer 2, so that when the leg elastic extensible part 5 is elastically extended and contracted, the coating layer 6 is not influenced, and after the coating layer 6 is bonded by multiple layers, the material property thereof is changed to a certain extent, compared with untreated hydrophobic non-woven fabrics, the coating structure of the coating layer 6 aiming at the two transverse side ends of the liquid-tight surface layer 1 is stable due to the influence of glue or hot pressing, and the influence of the leg elastic extensible part 5 on the liquid-tight surface layer is reduced as much as possible;
the technical scheme designs the structure of the coating layer 6, the structure extends along the longitudinal direction of the absorption article body, the width of a liquid-permeable surface layer is shortened, the two transverse side ends of the liquid-permeable surface layer are coated, meanwhile, the coating layer 6 is attached to the leakage-proof separation edges 4 and can stand along with the leakage-proof separation edges 4, a plurality of leakage-proof and absorption structures are formed at the two transverse side ends of the liquid-permeable surface layer 1, the coating layer 6 serves as a connecting part for connecting the liquid-permeable surface layer 1 and the liquid-impermeable bottom layer 2 at the two places, the leakage phenomenon caused by the fact that the liquid-permeable surface layer 1 and the liquid-impermeable bottom layer 2 are not bonded on the front waistline region and the rear waistline region can be thoroughly solved, and the technical scheme strengthens the effect of the leakage-proof separation edges 4 and reduces the possibility of leakage under the condition that comfort is not influenced;
correspondingly, the application process of the side leakage prevention absorbent article comprises the following steps:
1. preparing a liquid-permeable surface layer 1;
2. preparing an absorbent core 3;
3. preparing a liquid-impermeable back sheet 2;
4. preparing a leakage-proof partition edge 4;
5. stacking and fixedly connecting the products obtained in the first step, the second step and the third step together, simultaneously arranging the leakage-proof separation edges 4 obtained in the fourth step on the liquid-tight bottom layers 2 at two sides of the absorption core 3 along the symmetry, and then carrying out arc-shaped edge cutting treatment and cutting to form a single absorption article, wherein the first step comprises the following steps:
a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the transverse two side end parts of the lower surface of the hydrophilic non-woven fabric I to form bonding points I;
b. conveying two hydrophobic non-woven fabrics I in the same direction above two transverse sides of the hydrophilic non-woven fabric I, and enabling the part outside the hydrophilic non-woven fabric I to be folded downwards and inwards through a folding mechanism and to be in contact with and bonded with the bonding point I;
c. gluing the upper surfaces of the two hydrophobic non-woven fabrics one near the end part of the unfolded end to form a second adhesive point;
in the fifth step, the leakage-proof separation edges 4 cover the upper parts of the end parts of the two transverse sides of the liquid-permeable surface layer 1, and the transverse middle parts of the leakage-proof separation edges 4 are bonded with the bonding points II so as to be bonded with the hydrophobic non-woven fabric I.
Specifically, in the fifth step, the leakage preventing barrier 4 is partially bonded to the liquid-impermeable back sheet 2 to form a base end portion 4a bonded to the liquid-impermeable back sheet 2 and a free portion 4b not bonded thereto, and the leg elastic members 5 are provided in the base end portion 4 a.
Aiming at the situation that the liquid permeable surface layer 1 and the liquid impermeable bottom layer 2 of the front waistline region and the back waistline region are easy to cause side leakage due to the fact that a non-bonding area is formed under the action of the leg elastic extensible parts 5, in production, the width of the liquid permeable surface layer 1 is designed, the transverse size of the liquid permeable surface layer 1 is shortened, the transverse end of the liquid permeable surface layer 1 is wrapped by the added hydrophobic non-woven fabric, and structurally, the hydrophobic non-woven fabric extends along the longitudinal direction of the absorbent article to form a connecting part between the liquid permeable surface layer 1 and the liquid impermeable bottom layer 2 and is distributed along the longitudinal direction of the whole absorbent article, so that the side leakage situation is avoided on the product;
in the production, according to the industrial production process of high-speed production of the absorbent articles, the production steps are improved, and the concrete steps of corresponding sizing, folding, SAP adding and the like are added, so that the corresponding products can be produced at high speed, and the yield and the efficiency are ensured.
Example two
Referring to fig. 3 and 4, compared to the first embodiment, the step b further includes:
b1, gluing the lower end surfaces of the two hydrophobic non-woven fabrics and the end part of the end part opposite to the first bonding point to form a third bonding point;
b2, arranging a second hydrophilic non-woven fabric below the third bonding point, and applying SAP on the upper surface of the second hydrophilic non-woven fabric to form a partition edge absorption core layer;
b3, bonding and molding the product obtained in the step b2 and the bonding point III.
In this embodiment, in step b2, the SAPs on the barrier absorbent core layer 64 are arranged at intervals along the transverse direction of the second hydrophilic nonwoven fabric; specifically, the barrier absorbent core layer 64 is two SAPs transversely spaced along the leakproof barrier 4; different from the first embodiment, the structure of the coating layer 6 in this embodiment is that one surface of the coating layer which is attached to the leakage-proof barrier edges 4 is a hydrophobic layer 6b, one side which is close to the absorption core 3 is a hydrophilic layer 6a, and a barrier edge absorption core layer 64 is arranged, so that the absorption function is added in the upright part of the leakage-proof barrier edges 4, and meanwhile, the barrier edge absorption core layer 64 is far away from the barrier edge rubber bands 41 in the leakage-proof barrier edges 4, so that the upright of the leakage-proof barrier edges 4 is not affected, and the absorption effects of the leakage-proof barrier edges 4 in the front waistline region and the rear waistline region are also ensured;
in the fifth step, the leakage-proof separation edges 4 are partially bonded with the liquid-tight bottom layer 2 to form a base end part 4a bonded with the liquid-tight bottom layer 2 and a free part 4b which is not bonded, and leg circumference elastic expansion members 5 are applied in the base end part 4 a;
EXAMPLE III
Referring to fig. 5 and 6, compared to the embodiment, the step b further includes:
b1, gluing the lower end faces of the two hydrophobic non-woven fabrics and the end part of one end opposite to the first adhesive point to form a third adhesive point;
b2, arranging a second hydrophilic non-woven fabric below the third bonding point, and applying SAP to the upper surface of the second hydrophilic non-woven fabric to form a separation edge absorption core layer 64;
and b3, bonding and molding the product obtained in the step b2 and the bonding point III.
Specifically, in the step b2, the SAPs on the barrier absorbent core layer 64 are arranged at intervals along the transverse direction of the hydrophilic nonwoven fabric two; meanwhile, in the step b, a leg elastic expansion part 5 is applied to the lower end of the part of the hydrophobic non-woven fabric I, which is positioned outside the hydrophilic non-woven fabric I, and then the hydrophobic non-woven fabric I is folded downwards and inwards and is contacted and bonded with the bonding point I.
Specifically, comparing fig. 7 and 5, the positions of the leg elastic members 5 are structurally changed.
Example four
The structure is another side leakage-proof absorption article structure, and the technical scheme adopts a structure that the leakage-proof separation edge 4 and the coating layer 6 are integrally formed; the integral molding here means that the covering layer 6 and the leakage-proof separating edge 4 are the same whole, that is, referring to fig. 7, the hydrophobic layer 6b on the covering layer and the leakage-proof separating edge 4 are the same part, and the hydrophilic layer 6a and the separating edge absorption core layer 64 are added on the rising part of the leakage-proof separating edge 4, and at this time, the leg-surrounding elastic expansion part 5 originally arranged between the leakage-proof separating edge 4 and the liquid-tight bottom layer 2 is arranged between the folding part 63 and the liquid-tight bottom layer 2;
the following is a corresponding application process using this structure.
Referring to fig. 8, a process for applying a side-leakage resistant absorbent article includes the steps of:
1. preparing a liquid-permeable surface layer 1;
2. preparing an absorbent core 3;
3. preparing a liquid-impermeable back sheet 2;
4. laminating and fixedly connecting the products obtained in the first step, the second step and the third step together, then carrying out arc-shaped edge cutting treatment and cutting to form a single absorption article, wherein the first step comprises the following steps:
a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the upper surface and the lower surface of the end parts of the two transverse sides of the hydrophilic non-woven fabric I to form an upper bonding point I and a lower bonding point I;
b. conveying two hydrophobic non-woven fabrics I in the same direction above the two transverse sides of the hydrophilic non-woven fabric I, applying a side separating rubber band 41 on one transverse side end of the hydrophilic non-woven fabric I, folding the side end part by a folding mechanism to wrap the side separating rubber band 41, and bonding;
c. folding the part of the hydrophobic non-woven fabric outside the hydrophilic non-woven fabric downwards and inwards by a folding mechanism, contacting and bonding the part of the hydrophobic non-woven fabric with the lower bonding point I, and bonding the transverse middle part of the hydrophobic non-woven fabric I with the upper bonding point I to obtain the liquid-permeable surface layer 1;
in the fourth step, the first two hydrophobic nonwoven fabrics are partially bonded to the liquid-impermeable back sheet 2 to form a base end portion 4a bonded to the liquid-impermeable back sheet and a free portion 4b which is not bonded.
Specifically, the first step further includes:
d, gluing the middle parts of the lower end surfaces of the two hydrophobic non-woven fabrics to form a second adhesive point;
e. a second hydrophilic non-woven fabric is arranged below the second bonding point, and SAP is applied to the upper surface of the second hydrophilic non-woven fabric to form a separation edge absorption core layer 64;
f. and e, bonding and molding the product obtained in the step e and the bonding point II.
In this embodiment, in the step e, the SAPs on the barrier absorbent core layer 64 are arranged at intervals along the transverse direction of the second hydrophilic nonwoven fabric.
And a leg elastic expansion member 5 is provided in the base end portion 4 a.
Different from the previous implementation process, the method simplifies the product structure, reduces the material investment and production steps, reduces the production difficulty, and can improve the production efficiency.
EXAMPLE five
Referring to fig. 9 specifically, similar to the fourth embodiment, the leakage-proof separation edge 4 and the covering layer 6 use the same hydrophobic layer 6b, two ends of the hydrophobic layer 6b are respectively provided with rubber strings and folded and covered, the rubber string adhered to one side of the liquid-impermeable bottom layer 2 is used as the leg elastic expansion part 5, and the other side is used as the separation edge rubber string 41; the hydrophobic layer 6b adhered to one side of the liquid-tight bottom layer 2 has large folding size, and needs to be adhered to the lower end of the liquid-tight surface layer 1 after being folded, and then is integrally jointed with the liquid-tight bottom layer 2 after being formed;
referring to fig. 10, the difference from the fourth embodiment is that in the step c, leg elastic members 5 are applied to the lower ends of the portions of the hydrophobic nonwoven fabric one which are located outside the hydrophilic nonwoven fabric one, and then folded downward and inward and brought into contact with and bonded to the lower bonding points one.
Meanwhile, the leg elastic telescopic component 5 can also select 2-5 elastic telescopic rubber bands according to different requirements and sizes of products, and the stretching ratio of the elastic telescopic rubber bands can be 1.2-3.0; moreover, the folding mechanism is not specifically stated in the technical solution, which is well known to those skilled in the art and will not be described herein.
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 (2)
1. A process for applying a side-leakage resistant absorbent article, comprising the steps of:
1. preparing a liquid-permeable surface layer;
2. preparing an absorbent core;
3. preparing a liquid impermeable back sheet;
4. preparing a leakage-proof partition edge;
5. the products of step one, two, three are set up the rigid coupling together in a layer upon layer, set up the leak protection that step four got on the liquid-tight bottom layer of absorption core both sides along the symmetry simultaneously, later carry out the arc and cut edge and handle and cut the back and form single absorption article, wherein, above-mentioned step one includes:
a. taking a continuously conveyed hydrophilic non-woven fabric I, and gluing the end parts of the two transverse sides of the lower surface of the hydrophilic non-woven fabric I to form a first bonding point;
b. conveying two first hydrophobic non-woven fabrics above two transverse sides of the first hydrophilic non-woven fabric in the same direction, applying leg-surrounding elastic telescopic parts to the lower ends of the parts of the first hydrophobic non-woven fabrics outside the first hydrophilic non-woven fabrics, and then folding the first hydrophobic non-woven fabrics downwards and inwards to contact and bond with the first bonding points;
c. gluing the upper surfaces of the two hydrophobic non-woven fabrics one near the end part of the unfolded end to form a second adhesive point;
the step b further comprises:
b1, gluing the lower surfaces of the two hydrophobic non-woven fabrics and the end part of one end opposite to the first adhesive point to form a third adhesive point;
b2, arranging a second hydrophilic non-woven fabric below the third bonding point, and applying SAP on the upper surface of the second hydrophilic non-woven fabric to form a partition edge absorption core layer;
b3, bonding and molding the product obtained in the step b2 with the bonding point III;
in the fifth step, the leakage-proof barrier covers are arranged above the end parts of the two transverse sides of the liquid-permeable surface layer, and the transverse middle part of the leakage-proof barrier is bonded with the bonding point II so as to be bonded with the hydrophobic non-woven fabric I.
2. The process for applying a side-leakage resistant absorbent article of claim 1, wherein: in the step b2, the SAP on the separation edge absorption core layer is arranged at intervals along the transverse direction of the hydrophilic non-woven fabric II.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4522281B2 (en) * | 2005-02-10 | 2010-08-11 | 株式会社リブドゥコーポレーション | Disposable diapers |
| CN201684089U (en) * | 2010-01-26 | 2010-12-29 | 广东百顺纸品有限公司 | Disposable sanitary towel with quick absorption and liquid dispersion functions |
| CN201642586U (en) * | 2010-04-30 | 2010-11-24 | 广东百顺纸品有限公司 | Comfortable and highly leakproof disposable absorbent article |
| CN205251846U (en) * | 2015-11-20 | 2016-05-25 | 厦门源创力科技服务有限公司 | Absorbent device with horizontal leak protection elasticity waist spare |
| CN210785027U (en) * | 2019-08-26 | 2020-06-19 | 雀氏（福建）实业发展有限公司 | Multilayer side-leakage-proof absorption article |
| CN111388197B (en) * | 2020-03-20 | 2022-02-25 | 福建省明辉机械制造有限公司 | Preparation method of side leakage prevention trousers type paper diaper |
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