CN110680616A - Production method of full-surrounding leakproof absorption article - Google Patents
Production method of full-surrounding leakproof absorption article Download PDFInfo
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- CN110680616A CN110680616A CN201911035771.3A CN201911035771A CN110680616A CN 110680616 A CN110680616 A CN 110680616A CN 201911035771 A CN201911035771 A CN 201911035771A CN 110680616 A CN110680616 A CN 110680616A
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- woven fabric
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- absorbing material
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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
-
- 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
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
-
- 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
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15723—Partitioning batts; Cutting
-
- 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
- A61F13/15804—Plant, e.g. involving several steps
-
- 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
-
- 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
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers 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
- A61F13/15804—Plant, e.g. involving several steps
- A61F2013/15813—Plant, e.g. involving several steps with modular lines
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Botany (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to the field of production of disposable sanitary products, in particular to a method for producing a fully-enclosed leakage-proof absorption article, which comprises the following steps of: a. adding 1-5 rubber bands on the upper surface of the hydrophilic non-woven fabric side by side along the length direction of the hydrophilic non-woven fabric; b. laying a layer of liquid absorbing material I on the upper surface of the hydrophilic non-woven fabric, wherein the liquid absorbing material I is one of a mixture of pulp fibers and water absorbing resin, fluffy non-woven fabric and water absorbing resin and water absorbing paper, and the transverse width of the liquid absorbing material I is 15-40 mm narrower than that of the hydrophilic non-woven fabric; c. laying a hydrophilic non-woven fabric II on the liquid absorbing material I; d. fixedly connecting the longitudinal two side edges of the hydrophilic non-woven fabric I and the hydrophilic non-woven fabric II together; e. and d, symmetrically and alternately arranging the products in the two steps d on the three upper surfaces of the hydrophilic non-woven fabric, and fixedly connecting the transverse outer sides of the lower surfaces of the products in the step d with the three upper surfaces of the hydrophilic non-woven fabric.
Description
Technical Field
The invention relates to the field of production of disposable sanitary products, in particular to a production method of a full-surrounding leakage-proof absorption article.
Background
When the existing disposable baby and adult paper diapers, sheets or pads in the market at present can not be quickly absorbed by the absorption core body under the condition that a large amount of urine is discharged, the urine can overflow out of the leakage-proof separation edges and leak out of the paper diapers, so that clothes, bedding and the like are polluted.
The existing paper diaper comprises a urine absorption core body and diaper edges connected to the periphery of the urine absorption core body, wherein two side edges of the urine absorption core body are respectively provided with a leakage-proof partition edge, and the inner sides of the two leakage-proof partition edges are respectively provided with at least one cotton core strip with super absorbent resin which is placed in front and at the back.
In the technical scheme, the cotton core strips are embedded in the leakage-proof separation edges so that the leakage-proof separation edges have certain water absorption and maintain the leakage-proof effect, but the leakage-proof separation edges are limited by the structure of the cotton core strips, so that the problem that the leakage-proof separation edges cannot stand up is solved, and the actual effect of the original leakage-proof separation edges is influenced;
still for example chinese patent CN204766180U discloses a three-dimensional absorption multiple leakage-proof diaper, which comprises a body, the body comprises waterproof bottom layer, absorption core and water guide surface layer from bottom to top in proper order, the absorption core includes left wing region, right wing region and central region, the central region is connected with waterproof bottom layer, left wing region and right wing region can swing for waterproof bottom layer. In the technical scheme, the original absorption core body is divided into three areas, and the left wing area and the right wing area on the left side and the right side can swing.
Disclosure of Invention
Therefore, the invention provides a production method of a fully-enclosed leakage-proof absorption article, and solves the problems of poor leakage-proof effect and low core body utilization rate of the absorption article.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method for producing a full-enclosure leakproof absorbent article 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;
fifthly, arc-shaped trimming treatment is carried out on the product obtained in the fourth step;
sixthly, cutting the product obtained in the step five into single products to obtain the fully-enclosed leakage-proof absorbent article,
the first step comprises the following steps:
a. adding 1-5 rubber bands on the upper surface of the hydrophilic non-woven fabric side by side along the length direction of the hydrophilic non-woven fabric;
b. laying a layer of liquid absorbing material I on the upper surface of the hydrophilic non-woven fabric, wherein the liquid absorbing material I is one of a mixture of pulp fibers and water absorbing resin, fluffy non-woven fabric and water absorbing resin and water absorbing paper, and the transverse width of the liquid absorbing material I is 15-40 mm narrower than that of the hydrophilic non-woven fabric;
c. coating a layer of hydrophilic non-woven fabric II outside the liquid absorbing material I and the hydrophilic non-woven fabric I;
d. fixedly connecting the longitudinal side edges of the hydrophilic non-woven fabric II together;
e. c, symmetrically and alternately arranging the products obtained in the two steps d on the three upper surfaces of the hydrophilic non-woven fabric, wherein the transverse outer sides of the lower surfaces of the products obtained in the step d are fixedly connected with the three upper surfaces of the hydrophilic non-woven fabric;
f. d, fixedly connecting the product of the step d with the upper surfaces of the three hydrophilic non-woven fabrics at intervals of the length of one absorbent core to form a fixed connection area, wherein the length of the fixed connection area is 40-90 mm, and meanwhile, a free edge of 10-25 mm is reserved in the fixed connection area, close to the middle of the three transverse directions of the hydrophilic non-woven fabrics, of the product of the step d;
g. folding the free edge of the product obtained in the step d to the transverse outer side of the hydrophilic nonwoven fabric layer after the step f (carrying out recovery, supporting and fixing of the rubber band), wherein the folded width is smaller than or equal to the width of the free edge; at the moment, the folded part of the product in the step d is fixedly connected to the hydrophilic non-woven fabric II below the folded part in the fixed connection area in the step f;
h. and (d) adding waterproof retaining walls on the two transverse sides of the three upper surfaces of the hydrophilic non-woven fabric on the transverse outer side of the product in the step (d) respectively.
Preferably, the steps a to d are changed to the following steps:
a1, adding 1-5 rubber bands on the upper surface of the hydrophilic non-woven fabric side by side along the length direction;
b1, paving a layer of liquid absorbing material on the upper surface of the hydrophilic non-woven fabric, wherein the liquid absorbing material is one of a mixture of pulp fibers and water absorbing resin, fluffy non-woven fabric and water absorbing resin, and water absorbing paper;
c1, folding the two transverse sides of the first hydrophilic non-woven cloth upwards and inwards and fixedly connecting the two transverse sides into a whole to wrap the liquid absorbing material;
the subsequent step described the step d article as the step c1 article.
Preferably, the second step comprises the following steps:
2, paving a layer of liquid absorbing material II on the surface of a hydrophilic or water-repellent non-woven fabric, wherein the liquid absorbing material II is one of a mixture of pulp fibers and water-absorbent resin, fluffy non-woven fabric and water-absorbent resin, and water-absorbent paper;
b2, folding the hydrophilic or water-repellent non-woven fabric to wrap the liquid absorbing material II; (ii) a
c2, fixedly connecting the longitudinal edges of the hydrophilic or water-repellent non-woven fabric together;
d2, arranging the products obtained in the two steps c2 side by side, and placing the products on a hydrophilic non-woven fabric IV or a PE film to obtain the absorber.
Preferably, in the step d2, the transverse distance between two products obtained in the step c2 is 0-5 mm.
Preferably, the thickness of the product obtained in the step c2 is smaller than that of the product obtained in the step d.
Preferably, the longitudinal length of the article obtained in step d above is 0 to 80mm greater than the length of the absorbent core.
By adopting the technical scheme, the invention has the beneficial effects that: the product prepared by the invention is characterized in that symmetrical vertical reverse-folding protective enclosures are respectively arranged between two leakage-proof partition edges, the vertical reverse-folding protective enclosures are absorbers with liquid-absorbing materials and are matched with the lower absorption cores, so that when the paper diaper receives excrement, the excrement falls into a cavity between the two vertical reverse-folding protective enclosures and the absorption cores, the leakage-proof effect is achieved, the utilization rate of the water-absorbing materials is increased structurally, the waste is reduced, and the excrement can be wrapped to a certain extent because the vertical reverse-folding protective enclosures have reverse-folding structures, so that the skin of a user is prevented from being in contact with the excrement for a long time.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a cross-sectional view of the first embodiment of the present invention (the body is shown in a straightened state);
FIG. 4 is a schematic top plan view of the first embodiment of the present invention;
FIG. 5 is a schematic diagram of a production structure according to a first embodiment of the present invention;
fig. 6 is a schematic production structure diagram of the second 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, fig. 2, fig. 3, fig. 4, a fully-enclosed leak-proof absorbent article, comprising a body, the body is formed by sequentially laminating and connecting a liquid-permeable surface layer 1, an absorber 2 and a liquid-impermeable bottom layer 3, the two transverse sides of the liquid-permeable surface layer 1 are respectively provided with a leakproof isolation edge 11, leakproof isolation edge rubber bands 111 are longitudinally arranged inside the leakproof isolation edges 11 and close to the middle part of the body, two vertical reverse-folding fencing 4 are symmetrically arranged on the liquid-permeable surface layer 1 between the leakproof isolation edges 11 at the two sides by taking the longitudinal center of the body as a central line, a liquid-absorbing material 43 is filled in each vertical reverse-folding fencing 4, as shown in fig. 2 and fig. 3, a longitudinal side end of the two-standing-type reverse-folding apron 4 far from the center of the body is fixedly connected with the liquid-permeable surface layer 1, namely, one side end 4a of the vertical reverse-folding protecting enclosure 4 far away from the center of the body is covered by the leakage-proof partition edge 11; the two vertical reverse-folding fenders 4 are internally provided with 2 rubber strings 41 at the side close to each other, the stretching ratio of the rubber strings is 3-4 times, the rubber strings 41 are arranged, the two longitudinal ends of the two vertical reverse-folding fenders 4 are fixedly connected to the liquid-permeable surface layer 1, the two longitudinal ends of the two vertical reverse-folding fenders 4 are respectively provided with an upward and outward folded part 42, and each folded part 42 is arranged at one end close to each other of the two vertical reverse-folding fenders 4; after the body is worn, under the effect of the rubber band 41, the two-upright-type reverse-folding apron 4 is contracted towards the center of the body, the longitudinal two side ends of the two-upright-type reverse-folding apron 4 are fixed, and under the structural action of the folding parts 42, the rubber band 41 enables the parts between the two-end folding parts 42 to be contracted, so that the standing and reverse-folding form is realized.
In this embodiment, the absorbent body 2 is composed of two absorbent cores 21 arranged side by side, and the transverse distance 21a between the two absorbent cores 21 is 5 mm. Wherein the longitudinal length of the two standing reflexed containment flaps 4 is 10-80mm, in this embodiment 10mm, greater than the length of the two absorbent cores 21.
It is noted that the length of the absorbent core 21 can also be set to be the same as the length of the bi-level turn-up containment flaps 4, when required for production.
In this embodiment, the transverse width 42a of the folded portion 42 is 10mm, and the transverse width 42a of the folded portion 42 is the width of the folded region at the two side ends of the vertical reverse-folding apron 4.
In this embodiment, each absorbent core 21 is composed of the hydrophilic nonwoven fabric layer 211 as an outer layer, the hydrophilic nonwoven fabric layer 212 as an inner layer of the hydrophilic nonwoven fabric layer 211, and the second liquid absorbent material 213 laid on the surface of the hydrophilic nonwoven fabric layer 212.
In the present invention, the transverse distance 21a between the two absorbent cores 21 may be 0, i.e. the transverse side ends of the two absorbent cores 21 are close to each other, or may be a single, integral absorbent body covering the area between the two standing-type reflexed containment flaps 4.
Meanwhile, the liquid absorbing material 213 is one of a mixture of pulp fibers and water absorbent resin, fluffy non-woven fabric and water absorbent resin, and water absorbent paper, and the above materials can all realize the technical scheme formed by the embodiment, and have various proportions, which are not specifically limited herein.
As also shown in fig. 5, the method for producing a fully-enclosed leakproof absorbent article comprises the following steps:
firstly, preparing a liquid-permeable surface layer 1;
secondly, preparing an absorber 2;
thirdly, preparing a liquid-tight bottom layer 3;
fourthly, stacking and fixedly connecting the products obtained in the first step, the second step and the third step together;
fifthly, arc-shaped trimming treatment is carried out on the product obtained in the fourth step;
sixthly, cutting the product obtained in the step five into single products to obtain the fully-enclosed leakage-proof absorbent article,
the first step comprises the following steps:
a. adding 2 rubber strings 41 in parallel along the length direction of the upper surface of the hydrophilic non-woven fabric I1 a, wherein the number of the rubber strings 41 is 1-5, the stretching ratio of the rubber strings 41 is 3-4 times, and the number of the rubber strings 41 is 1-5 according to different stretching ratios;
b. laying a layer of liquid absorption material I43 on the upper surface of the hydrophilic non-woven fabric I1 a, wherein the liquid absorption material I43 is one of a mixture of pulp fibers and water absorption resin, fluffy non-woven fabric and water absorption resin and water absorption paper, the transverse width of the liquid absorption material I43 is narrower than that of the hydrophilic non-woven fabric I1 a, and the difference 43a between the two is 10 mm;
c. coating a layer of hydrophilic non-woven fabric II outside the liquid absorbing material I43 and the hydrophilic non-woven fabric I, wherein the hydrophilic non-woven fabric II 1b is used as a coating layer to prevent the liquid absorbing material I43 from leaking out of the product; meanwhile, when needed, a layer of hydrophilic material can be coated outside the hydrophilic non-woven fabric II 1b to serve as a surface layer, so that the hand feeling of the product can be improved, and the comfort level is improved;
d. fixedly connecting the longitudinal side edges of the hydrophilic non-woven fabric II 1b together;
e. c, symmetrically and alternately arranging the products obtained in the two steps d on the upper surface of the third hydrophilic non-woven fabric 1c, and fixedly connecting the transverse outer side of the lower surface of the product obtained in the step d with the upper surface of the third hydrophilic non-woven fabric 1 c; when the product in the step d is fixedly connected with the upper surface of the third hydrophilic non-woven fabric 1c, the method is the same as the traditional method for fixedly connecting the absorbent core, when the product is produced along a production line, the production line material of the product in the step d of the production line operation is cut into single absorbent cores, then the conveying speed of the absorbent cores is accelerated to be the same as the conveying speed of the material of the third hydrophilic non-woven fabric 1c below, and then the absorbent cores are attached;
f. d, fixedly connecting the product of the step d with the upper surface of the third hydrophilic non-woven fabric 1c at intervals of the length 1d of one absorbent core to form a fixedly connected area 1e, wherein the length 1f of the fixedly connected area is 40mm, the fixedly connected area can be 40-90 mm, a 10mm free edge is reserved in the fixedly connected area close to the transverse middle part of the third hydrophilic non-woven fabric 1c of the product of the step d, the free edge can be within 10-25 mm, and the free edge is the transverse width 42a of the folded part 42; the fixed connection area 1e is the fixed connection area 1e which is formed by applying glue or spraying glue on the production material flow line of the hydrophilic non-woven fabric III 1c at equal intervals so as to form long-strip-shaped glue materials distributed at intervals;
g. the product of step d is folded after step f with the free edge towards the lateral outside of the hydrophilic nonwoven fabric 1c to form a folded portion 42, the width of the fold being less than or equal to the width of the free edge; at the moment, the folded part of the product in the step d is fixedly connected to the hydrophilic non-woven fabric II 1b below the folded part in the fixed connection area in the step f;
h. and (d) adding waterproof retaining walls (namely, leakage-proof separating edges 11) on two transverse sides of the upper surface of the hydrophilic non-woven fabric III 1c on the transverse outer side of the product in the step d respectively.
In this embodiment, the step two of preparing the absorber 2 includes the following steps:
a2, paving a layer of second liquid absorption material 213 on the surface of the hydrophilic non-woven fabric 211, wherein the second liquid absorption material 213 is one of a mixture of pulp fibers and water-absorbent resin, fluffy non-woven fabric and water-absorbent resin, and water-absorbent paper;
b2, folding the hydrophilic non-woven fabric 211 to cover the second liquid absorbing material 213; (ii) a
c2, fixedly connecting the longitudinal two sides of the hydrophilic non-woven fabric 211 together to obtain the absorption core 21;
d2, arranging the products obtained in the two steps c2 side by side, and placing the products on a hydrophilic non-woven fabric IV 212 to obtain the absorber 2.
Specifically, in the step d2, the transverse spacing 21a between the two products obtained in the step c2 is 5 mm.
Specifically, the thickness of the product obtained in the step c2 is smaller than that of the product obtained in the step d.
In the case of the product obtained in step d2 in two steps c2 and having a transverse spacing 21a of 0, the hydrophilic nonwoven fabric IV 212 can also be omitted and the product obtained in step c2 can be placed directly on the PE film of the absorbent article.
Example two
Referring to fig. 6, compared to the first embodiment, steps a to d are changed to the following steps:
a1, adding 2 rubber bands on the upper surface of the hydrophilic non-woven fabric 1a side by side along the length direction;
b1, paving a layer of liquid absorption material on the upper surface of the hydrophilic non-woven fabric I1 a, wherein the liquid absorption material I43 is one of a mixture of pulp fibers and water absorption resin, fluffy non-woven fabric and water absorption resin and water absorption paper;
c1, folding the two transverse sides of the first hydrophilic non-woven fabric upwards and inwards and fixedly connecting the two transverse sides into a whole to wrap the first liquid absorption material 43, and wrapping a layer of second hydrophilic non-woven fabric 1b outside the obtained product;
the subsequent step described the step d article as the step c1 article.
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 (6)
1. A method for producing a full-enclosure leakproof absorbent article 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;
fifthly, arc-shaped trimming treatment is carried out on the product obtained in the fourth step;
sixthly, cutting the product obtained in the step five into single products to obtain the double-leakage-proof paper diaper,
the method is characterized in that the first step comprises the following steps:
a. adding 1-5 rubber bands on the upper surface of the hydrophilic non-woven fabric side by side along the length direction of the hydrophilic non-woven fabric;
b. laying a layer of liquid absorbing material I on the upper surface of the hydrophilic non-woven fabric, wherein the liquid absorbing material is one of a mixture of pulp fibers and water absorbing resin, fluffy non-woven fabric and water absorbing resin and water absorbing paper, and the transverse width of the liquid absorbing material is 15-40 mm narrower than that of the hydrophilic non-woven fabric;
c. coating a layer of hydrophilic non-woven fabric II outside the liquid absorbing material I and the hydrophilic non-woven fabric I;
d. fixedly connecting the longitudinal side edges of the hydrophilic non-woven fabric II together;
e. c, symmetrically and alternately arranging the products obtained in the two steps d on the three upper surfaces of the hydrophilic non-woven fabric, wherein the transverse outer sides of the lower surfaces of the products obtained in the step d are fixedly connected with the three upper surfaces of the hydrophilic non-woven fabric;
f. d, fixedly connecting the product of the step d with the upper surfaces of the three hydrophilic non-woven fabrics at intervals of the length of one absorbent core to form a fixed connection area, wherein the length of the fixed connection area is 40-90 mm, and meanwhile, a free edge of 10-25 mm is reserved in the fixed connection area, close to the middle of the three transverse directions of the hydrophilic non-woven fabrics, of the product of the step d;
g. c, performing recovery, supporting and fixing of rubber bands on the free edge to the transverse outer side of the hydrophilic nonwoven fabric after the product in the step f, wherein the fixed width is smaller than or equal to the width of the free edge; at the moment, the folded part of the product in the step d is fixedly connected to the hydrophilic non-woven fabric II below the folded part in the fixed connection area in the step f;
h. and (d) adding waterproof retaining walls on the two transverse sides of the three upper surfaces of the hydrophilic non-woven fabric on the transverse outer side of the product in the step (d) respectively.
2. A method for manufacturing a fully-enclosed leakproof absorbent article as claimed in claim 1, wherein the steps a to d are modified to the following steps:
a1, adding 1-5 rubber bands on the upper surface of the hydrophilic non-woven fabric side by side along the length direction;
b1, paving a layer of liquid absorbing material on the upper surface of the hydrophilic non-woven fabric, wherein the liquid absorbing material is one of a mixture of pulp fibers and water absorbing resin, fluffy non-woven fabric and water absorbing resin, and water absorbing paper;
c1, folding the two transverse sides of the first hydrophilic non-woven cloth upwards and inwards and fixedly connecting the two transverse sides into a whole to wrap the liquid absorbing material;
the subsequent step described the step d article as the step c1 article.
3. The method for producing a full containment leakproof absorbent article as claimed in claim 1 or 2, wherein the second step comprises the following steps:
2, paving a layer of liquid absorbing material II on the surface of a hydrophilic or water-repellent non-woven fabric, wherein the liquid absorbing material II is one of a mixture of pulp fibers and water-absorbent resin, fluffy non-woven fabric and water-absorbent resin, and water-absorbent paper;
b2, folding the hydrophilic or water-repellent non-woven fabric to wrap the liquid absorbing material II;
c2, fixedly connecting the longitudinal edges of the hydrophilic or water-repellent non-woven fabric together;
d2, arranging the products obtained in the two steps c2 side by side, and placing the products on a hydrophilic non-woven fabric four or a PE film to obtain the absorber.
4. A method of manufacturing a fully-enclosed, leak-proof absorbent article as defined in claim 3, wherein: in the step d2, the transverse spacing of the products obtained in the two steps c2 is 0-5 mm.
5. A method of manufacturing a fully-enclosed, leak-proof absorbent article as defined in claim 4, wherein: the thickness of the product obtained in the step c2 is smaller than that of the product obtained in the step d.
6. A method of manufacturing a fully-enclosed, leak-proof absorbent article as defined in claim 4, wherein: the longitudinal length of the article obtained in step d above is 0-80mm greater than the length of the absorbent core.
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Application publication date: 20200114 |