阅读说明：本技术 一种防侧漏的吸收物品的施加工艺 (Application process of side leakage prevention absorption article ) 是由 汤国开 黄阿玲 于 2021-08-02 设计创作，主要内容包括：本发明涉及卫生用品生产技术领域,具体涉及一种防侧漏的吸收物品的施加工艺,包括以下步骤：一、制备透液性面层；上述步骤一包括：a、取一连续输送的亲水无纺布一,在其下表面横向两侧端部施胶形成粘接点一；b、在所述亲水无纺布一横向两侧上方同向输送两疏水无纺布一,并通过折叠机构使位于所述亲水无纺布一外的部分向下向内折叠并与所述粘接点一接触且粘合；c、在两疏水无纺布一上表面靠近未折叠的一端端部施胶,形成粘接点二解决了现有的吸收物品由防漏隔边靠近前后端的两侧渗出导致侧漏的问题,并调整了生产工艺及相关设备。(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: firstly, preparing a liquid-permeable surface 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.)

1. A process for applying a side-leakage resistant absorbent article, comprising the steps of:

firstly, preparing a liquid-permeable surface layer;

secondly, preparing an absorption core;

thirdly, preparing a liquid-tight bottom layer;

fourthly, preparing a leakage-proof separation edge;

fifthly, the products of the first step, the second step and the third step are stacked and fixedly connected together, meanwhile, the leakage-proof partition edges obtained in the fourth step are symmetrically arranged on the liquid-tight bottom layers at two sides of the absorption core, and then arc-shaped edge cutting processing and cutting are carried out 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 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.

2. The process for applying a side leakage resistant absorbent article of claim 1 wherein step b further comprises:

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 on the upper surface of the second hydrophilic non-woven fabric to form a barrier edge absorption core layer;

b3, bonding the product obtained in the step b2 with the bonding point III for molding.

3. The process for applying a side-leakage resistant absorbent article of claim 2, wherein: in step b2, the SAPs on the barrier absorbent core layer are arranged at intervals along the transverse direction of the second hydrophilic nonwoven fabric.

4. The process for applying an absorbent article for preventing lateral leakage according to claim 1, 2 or 3, wherein: in the fifth step, the leakage-proof barrier 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 to the base portion, and a leg-surrounding elastic member is provided in the base portion.

5. The process for applying an absorbent article for preventing lateral leakage according to claim 1, 2 or 3, wherein: in the step b, leg elastic expansion parts are applied to the lower ends of the parts, which are positioned outside the hydrophilic non-woven fabric, of the hydrophobic non-woven fabric I, and then the parts are folded downwards and inwards and are contacted with and bonded with the bonding points I.

6. A process for applying an absorbent article to prevent side leakage, comprising: the method comprises the following steps:

firstly, preparing a liquid-permeable surface layer;

secondly, preparing an absorption core;

thirdly, preparing a liquid-tight bottom layer;

fourthly, stacking 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 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.

7. The process for applying a side-leakage resistant absorbent article of claim 6 wherein said 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.

8. The process for applying a side-leakage resistant absorbent article of claim 6 wherein: and e, arranging the SAP on the separation edge absorption core layer at intervals along the transverse direction of the hydrophilic non-woven fabric II.

9. The process for applying a side-leakage resistant absorbent article of claim 6 wherein: an elastic expansion member for leg circumference is provided in the base end portion.

10. The process for applying a side-leakage resistant absorbent article of claim 6 wherein: in the step c, leg elastic expansion parts are applied to the lower ends of the parts, which are positioned outside the hydrophilic non-woven fabric, of the hydrophobic non-woven fabric I, and then the parts are folded downwards and inwards and are contacted and bonded with the lower bonding points I.

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, disclosing 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, left and right leakproof isolation edges extending along the longitudinal direction are arranged at the two transverse sides of the absorption article, leg-surrounding elastic expansion parts extending along the longitudinal direction at least at the crotch area are respectively arranged at the transverse outer sides of the longitudinal edge of the absorption core, and the leakproof isolation edge material is respectively jointed on the surface layer material and the bottom layer material at the transverse outer sides 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:

firstly, preparing a liquid-permeable surface layer;

secondly, preparing an absorption core;

thirdly, preparing a liquid-tight bottom layer;

fourthly, preparing a leakage-proof separation edge;

fifthly, the products of the first step, the second step and the third step are stacked and fixedly connected together, meanwhile, the leakage-proof partition edges obtained in the fourth step are symmetrically arranged on the liquid-tight bottom layers at two sides of the absorption core, and then arc-shaped edge cutting processing and cutting are carried out 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 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 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 on the upper surface of the second hydrophilic non-woven fabric to form a barrier edge absorption core layer;

b3, bonding the product obtained in the step b2 with the bonding point III for molding.

Preferably, in step b2, the SAP in 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 barrier 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 a leg elastic 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.

For the above production purposes, this is another process for applying an absorbent article against side leakage, comprising the steps of:

firstly, preparing a liquid-permeable surface layer;

secondly, preparing an absorption core;

thirdly, preparing a liquid-tight bottom layer;

fourthly, stacking 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 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 the 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 example four of the present invention;

FIG. 8 is a schematic process flow diagram of the 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 provided for the embodiments of the present invention 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, and to fig. 1, a side leakage preventing absorbent article includes an absorbent article body (an expanded view of the absorbent article body is shown in prior application CN 202682192U of the present applicant), the absorption article body comprises a liquid-permeable surface layer 1, a liquid-impermeable bottom layer 2 and an absorption core 3 arranged between the liquid-permeable surface layer 1 and the liquid-impermeable bottom layer 2, the longitudinal direction of the absorption article body in the length direction and the transverse direction of the absorption article body in the width direction are defined, the two transverse sides of the absorption article body are provided with leakage-proof separation edges 4 extending along the longitudinal direction, the absorption article body outside the two transverse side ends of the liquid-permeable surface layer 1 is provided with leg elastic expansion parts 5 extending along the longitudinal direction, in particular, the leg elastic telescopic parts 5 are 3 elastic telescopic rubber bands which are transversely spaced and longitudinally extend, and the stretch ratio of the elastic telescopic rubber bands is 1.2;

coating layers 6 coated at two lateral ends of the liquid-permeable surface layer 1 are arranged at two lateral ends, 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;

accordingly, a process for applying a side-leakage resistant absorbent article, comprising the steps of:

firstly, preparing a liquid-permeable surface layer 1;

secondly, preparing an absorption core 3;

thirdly, preparing a liquid-tight bottom layer 2;

fourthly, preparing a leakage-proof separation edge 4;

fifthly, products obtained in the first step, the second step and the third step are stacked and fixedly connected together, meanwhile, the leakage-proof separation edges 4 obtained in the fourth step are symmetrically arranged on the liquid-tight bottom layer 2 on two sides of the absorption core 3, then arc-shaped edge cutting processing is carried out, and a single absorption article is formed after cutting, 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 are covered above 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 non-bonding area caused by the action of the leg elastic expansion part 5, in the production, the width size of the liquid permeable surface layer 1 is designed, the transverse size is shortened, the transverse end part of the liquid permeable surface layer is wrapped by the additionally arranged 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 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 on the upper surface of the second hydrophilic non-woven fabric to form a barrier edge absorption core layer;

b3, bonding the product obtained in the step b2 with the bonding point III for molding.

In this embodiment, in step b2, the SAPs on the barrier absorbent core layer 64 are disposed at intervals along the transverse direction of the second hydrophilic nonwoven fabric; specifically, the barrier absorbent core layer 64 is two SAPs spaced along the transverse direction of the leakage-proof barrier 4; different from the first embodiment, the structure of the coating layer 6 of this embodiment is that one surface of the coating layer attached to the leakage-proof barrier 4 is a hydrophobic layer 6a, one side of the coating layer close to the absorbent core 3 is a hydrophilic layer 6b, and a barrier absorption core layer 64 is provided, so that an absorption function is added in the rising part of the leakage-proof barrier 4, and meanwhile, the barrier absorption core layer 64 is far away from the barrier rubber band 41 in the leakage-proof barrier 4, so that the rising of the leakage-proof barrier 4 is not affected, and the absorption effects of the leakage-proof barrier 4 on the front waistline region and the back 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 with 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 on the upper surface of the second hydrophilic non-woven fabric to form the edge separation absorbent core layer 64;

b3, bonding the product obtained in the step b2 with the bonding point III for molding.

Specifically, 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; meanwhile, in the step b, leg elastic expansion parts 5 are applied to the lower ends of the parts, which are positioned outside the hydrophilic non-woven fabric, of the hydrophobic non-woven fabric I, and then the leg elastic expansion parts are folded downwards and inwards and are contacted with and bonded with the bonding points 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 6a on the covering layer and the leakage-proof separating edge 4 are the same part, and the hydrophilic layer 6b 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:

firstly, preparing a liquid-permeable surface layer 1;

secondly, preparing an absorption core 3;

thirdly, preparing a liquid-tight bottom layer 2;

fourthly, stacking 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 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 proximal 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.