CN110946711B - Preparation method of disposable pants-type sanitary product - Google Patents
Preparation method of disposable pants-type sanitary product Download PDFInfo
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- CN110946711B CN110946711B CN201911165338.1A CN201911165338A CN110946711B CN 110946711 B CN110946711 B CN 110946711B CN 201911165338 A CN201911165338 A CN 201911165338A CN 110946711 B CN110946711 B CN 110946711B
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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
- A61F13/496—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
-
- 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
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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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/53409—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core
- A61F13/53427—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core having an e-folded cross-section
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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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/535—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
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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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
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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
- A61F13/56—Supporting or fastening means
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
- A61F13/565—Supporting or fastening means specially adapted for diapers or the like pants type diaper
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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)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to the field of sanitary products, and provides a preparation method of a disposable pants-type sanitary product, which solves the problems of more complex preparation process and higher cost of the pants-type sanitary product in the prior art, and also solves the problems of poor flexibility, uneven elastic distribution and strangeness in use of an outer clothing layer of the pants-type sanitary product obtained by the preparation method in the prior art, and comprises the steps of preparing the outer clothing layer, preparing an absorber, fixedly arranging the absorber on the outer clothing layer, welding the absorber into a pants-shaped structure and cutting the pants-shaped structure into single products, wherein the step of preparing the outer clothing layer comprises the following steps: a. preparing elastic non-woven fabric; b. b, sending the elastic non-woven fabric prepared in the step a into an activation system for activation treatment; c. and d, cutting the elastic non-woven fabric prepared in the step b along the longitudinal direction, and then compounding the cut elastic non-woven fabric and the spun-bonded non-woven fabric into a whole through hot melt adhesive or ultrasonic waves, wherein the cut elastic non-woven fabrics are respectively positioned at the two longitudinal sides of the spun-bonded non-woven fabric, and thus the coat layer is prepared.
Description
Technical Field
The invention relates to the field of sanitary products, in particular to a preparation method of a disposable pants-type sanitary product.
Background
The preparation method of the disposable pants-type sanitary product generally comprises the preparation of an outer clothing layer and the preparation of an absorber, wherein the outer clothing layer generally comprises a front clothing layer and a rear clothing layer, one end of the absorber is fixedly connected with the front clothing layer, the other end of the absorber is fixedly connected with the rear clothing layer, and the two transverse sides of the front and rear clothing layers are fixedly welded to form a closed structure with a waist opening and a leg opening. The common two kinds of structures that have on front and back clothing layer, one kind is a slice formula structure, another kind is two slice formula structures, the clothing layer of these two kinds of structures all comprises two-layer non-woven fabrics composite rubber band usually, this type clothing layer, only there is the regional elasticity of distribution rubber band, rather than whole clothing layer all has elasticity, whole elastic distribution is not enough even, and adopt the structure of a large amount of distribution rubber bands, the user can produce the sensation of "lei", the holistic compliance in clothing layer is also comparatively not good.
Chinese patent No. 201721925567.5 discloses a pull-up pants, comprising a diaper body having a front waistline portion corresponding to the front waist of the human body, a rear waistline portion corresponding to the rear waist of the human body, a front crotch portion corresponding to the front crotch of the human body, and a rear crotch portion corresponding to the rear crotch of the human body, and elastic waistlines respectively provided between the front waistline portion and the rear waistline portion, characterized in that: the rigid coupling has the middle part linkage segment of preventing the piece of tightening in back waistline portion, prevent that the piece of tightening in contains the linkage segment at middle part and locates the buffer segment at linkage segment both ends, the buffer segment covers in elastic waistline top, just the length of buffer segment is more than 3/2 of elastic waistline length, the width of buffer segment is greater than elastic waistline's width, and this product is through increasing the piece of tightening in the setting, and the buffer segment of preventing the piece of tightening in the middle part just locates between elastic waistline and the tender skin of baby to the area is greater than elastic waistline. In the wearing process, after the tightening-preventing piece is manually smoothed by an adult, the elastic waistline is directly pressed on the buffer section of the tightening-preventing piece, so that a good buffer effect is achieved, and obvious red tightening marks are prevented from appearing on the delicate skin of a baby. The product needs the special smoothing of adult's anti-lux piece when wearing, if carelessly do not smooth anti-lux piece, the baby can appear the foreign matter sense in the waistline region when using, uses more uncomfortable. And the preparation process is complex, and the anti-tying sheet needs to be additionally added, so that the cost is high.
Disclosure of Invention
Therefore, aiming at the above, the invention provides a preparation method of a disposable pants-type sanitary product, which solves the problems of more complex preparation process and higher cost of the pants-type sanitary product in the prior art, and also solves the problems of poor flexibility, uneven elastic distribution and strange feeling in use of an outer garment layer of the pants-type sanitary product obtained by the preparation method in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for preparing disposable pants-type sanitary products comprises preparing an outer garment layer, preparing an absorbent body, fixing the absorbent body on the outer garment layer, welding the absorbent body into a pants-shaped structure, and cutting into individual products:
the preparation of the outer garment layer comprises the following steps:
a. preparing an elastic nonwoven comprising:
a1, adding a layer of elastomer on the polypropylene layer;
a2, adding a polypropylene layer on the elastomer obtained in the step a1, and fixedly connecting the polypropylene layer and the elastomer into a whole through hot rolling to obtain elastic non-woven fabric with a three-layer structure;
b. b, sending the elastic non-woven fabric prepared in the step a into an activation system for activation treatment;
the activation system comprises an input driving roller, at least one group of heating roller sets, a traction driving roller, an activation gear and an output driving roller, the input driving roller, the heating roller sets, the traction driving roller, the activation gear and the output driving roller are respectively in transmission connection with a power output end, and the activation treatment is to activate the elastic non-woven fabric sequentially through the input driving roller, the heating roller sets, the traction driving roller, the activation gear and the output driving roller; the linear speed of the output driving roller is 1.5-2.5 times of the linear speed of the input driving roller, the linear speed of the traction driving roller is consistent with that of the input driving roller, each heating roller set comprises at least two heating rollers, the front surface and the back surface of the elastic non-woven fabric are respectively contacted with at least one heating roller of the heating roller sets, the heating temperature of each heating roller is set to be 40-60 ℃, the included angle of the contact part of the elastic non-woven fabric and each heating roller along the circumferential direction is more than 120 degrees, the activation gear consists of a pair of gears, flat teeth are uniformly arranged on the circumferential side surface of each gear at intervals, and the flat teeth of the pair of gears are distributed in a staggered mode when the;
c. and d, cutting the elastic non-woven fabric prepared in the step a along the longitudinal direction, and then compounding the cut elastic non-woven fabric and the spun-bonded non-woven fabric into a whole through hot melt adhesive or ultrasonic waves, wherein the cut elastic non-woven fabrics are respectively positioned at the two longitudinal sides of the spun-bonded non-woven fabric, and thus the coat layer is prepared.
The further improvement is that: the preparation of the absorber comprises the following steps:
1) preparing a liquid-permeable top layer;
2) preparing a flow guide layer;
3) preparing an absorbent core: preparing upper absorbent paper, preparing convex absorbent paper, preparing bottom absorbent paper, combining the upper absorbent paper, the convex absorbent paper and the bottom absorbent paper into a whole, and performing open cutting line treatment, wherein the open cutting line treatment specifically comprises the following steps: cutting the surface of the upper layer of absorbent paper, wherein a cutting line penetrates from the upper layer of absorbent paper to the bottom layer of absorbent paper;
4) preparing a rubber band: 3-5 rubber bands, wherein the longitudinal length of each rubber band is 1/3-4/5 of the longitudinal length of the bottom layer absorbent paper, and the transverse area of the rubber band distribution accounts for 1/3-4/5 of the transverse width of the bottom layer absorbent paper;
5) preparing a liquid impermeable back sheet;
6) the prepared rubber band and the prepared liquid-tight bottom layer are firstly compounded into a whole on line, then the prepared absorption core, the flow guide layer and the liquid-tight surface layer are sequentially compounded on the rubber band to prepare the absorber, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees.
The further improvement is that: the coat layer is also subjected to inner wrapping treatment, and the specific treatment steps are as follows: and c, after the spun-bonded non-woven fabric in the step c is compounded with the cut elastic non-woven fabric, spraying rubber bands at the positions 20-50mm from the two longitudinal ends of the spun-bonded non-woven fabric, and then folding the area sprayed with the rubber bands downwards and inwards to form an inner packaging area.
The further improvement is that: the convex absorbent paper is arranged in the upper half area in the longitudinal direction of the absorbent body.
The further improvement is that: the elastic non-woven fabric is characterized in that the gram weight of the elastic non-woven fabric is 30-80gsm, the elastomer is an SBS block copolymer type elastomer or a polyolefin type elastomer, the mass fraction of the upper polypropylene layer and the bottom polypropylene layer accounts for 10-40%, the mass fraction of the elastomer accounts for 30-80%, the elastic non-woven fabric is obtained by fixing and bonding through a hot roller, and the roll point area accounts for 10-15%.
The further improvement is that: the cross section of the convex absorbent paper is of an e-shaped folding structure.
The further improvement is that: the longitudinal length of the front waist abdominal circumference elastic piece is 150-230mm, and the longitudinal length of the back waist-hip circumference elastic piece is 180-280 mm.
By adopting the technical scheme, the invention has the beneficial effects that:
1. the preparation method of the invention is different from the traditional preparation method, the raw materials adopted by the coat layer are different from the traditional method, the coat layer is formed by compounding activated elastic non-woven fabric and spun-bonded non-woven fabric, the elastic non-woven fabric consists of an upper polypropylene layer, a bottom polypropylene layer and an elastomer arranged between the upper polypropylene layer and the bottom polypropylene layer, the activation treatment is to activate the elastic non-woven fabric sequentially through an input driving roller, each heating roller set, a traction driving roller, an activation gear and an output driving roller, the upper polypropylene layer and the lower polypropylene layer are heated and softened after the elastic non-woven fabric is treated by the heating roller sets, flat teeth of the activation gear are in staggered distribution during operation, a high-stretching area and a low-stretching area are formed on the elastic non-woven fabric through the engagement of the gear after the tensioned elastic non-woven fabric passes through the activation gear set, and the elastic non-woven fabric at the top of, the non-woven fabric between the tops of the tooth tips is stretched by the output driving roller to form a high stretching area, the polypropylene layer in the high stretching area is stretched to be thinned and further broken, the elastic body is stretched and deformed at the same time, then the elastic body is deformed and restored along with the disappearance of the tension, the deformation of the polypropylene layer is not restored, and the stretching ratio of the elastic non-woven fabric is 1.5-4 times after the activation treatment;
2. the linear velocity of the output driving roller is 1.5-2.5 times of that of the input driving roller, so that the elastic non-woven fabric has certain stretching force during online transmission and is stretched and deformed after passing through the activation gear;
3. the disposable pants-type sanitary product prepared by the preparation method of the invention has the following advantages:
a. the disposable pants-type sanitary product is characterized in that the outer clothing layer of the disposable pants-type sanitary product is formed by compounding an elastic non-woven fabric and a spun-bonded non-woven fabric, the elastic non-woven fabric is composed of an upper polypropylene layer, a bottom polypropylene layer and an elastomer arranged between the upper polypropylene layer and the bottom polypropylene layer, the elastomer is an SBS block copolymer type elastomer or a polyolefin type elastomer, the elastic non-woven fabric adopts the structure instead of the traditional double-layer non-woven fabric with rubber bands sandwiched therebetween, and the disposable pants-type sanitary product is softer, has elasticity as a whole, is uniformly distributed in elasticity and does not generate a; the polypropylene layer can ensure the stability of the structure of the non-woven fabric to the maximum extent, and avoid elastic loss in the processes of rolling, slitting, storing and the like;
b. carrying out inner wrapping treatment on the waistline region, namely wrapping the spun-bonded non-woven fabric inwards and downwards at the waist opening towards the body contact side, and arranging an elastic material in the wrapping area to enhance the elasticity of the waistline waistband region;
c. the longitudinal length of the front waist abdominal circumference elastic piece is 15-50mm shorter than that of the back waist hip circumference elastic piece, so that the front and back elastic pieces are better attached to the human body;
d. the absorber is formed by matching three layers of absorbent paper and rubber bands, wherein the three layers of absorbent paper are respectively upper layer absorbent paper, middle convex absorbent paper and bottom layer absorbent paper, the three layers of absorbent paper are subjected to strength destruction treatment, namely, the three layers of absorbent paper are cut firstly, the rigidity of the absorbent paper is destroyed, and the rubber bands arranged between the bottom layer absorbent paper and a liquid-tight bottom layer are matched, so that the generated softness is improved, and the generated close-fitting performance is also improved, 3-5 lines of rubber bands are distributed and are concentrated in 1/3-4/5 areas of the transverse width of the bottom layer absorbent paper, the longitudinal length of the rubber bands accounts for 1/3-4/5 of the bottom layer absorbent paper, and the rubber bands are distributed in a more concentrated and larger area, so that the close-fitting performance is better realized;
e. the liquid-permeable surface layer, the flow guide layer, the upper absorbent paper, the middle convex absorbent paper and the bottom absorbent paper are connected through the flow guide grooves, so that absorption of the discharged liquid is accelerated, and the diffusion direction of the discharged liquid can be guided;
f. the cross section of the convex absorbent paper is of an e-shaped folding structure, so that the absorbed liquid absorption amount is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of T-T of FIG. 1;
FIG. 3 is a cross-sectional view of an absorbent body surface through the bottom of a garment article in an embodiment of the present invention;
FIG. 4 is a schematic view of a composite structure of the upper absorbent paper, the middle absorbent paper and the bottom absorbent paper according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a cross-sectional view taken at H-H in FIG. 4;
FIG. 7 is a schematic view of an inner package structure of a spunbonded nonwoven fabric according to an embodiment of the invention;
FIG. 8 is a schematic view of the structure of an elastic nonwoven fabric according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an activation system according to an embodiment of the present invention;
FIG. 10 is a circumferential side expanded view of a gear in an embodiment of the present invention;
FIG. 11 is a schematic view of the meshing connection structure of the gear c1 and the gear c2 according to the embodiment of the invention;
FIG. 12 is a flow chart of a manufacturing method 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.
Unless otherwise indicated, the techniques employed in the examples are conventional and well known to those skilled in the art, and the reagents and products employed are also commercially available. The source, trade name and if necessary the constituents of the reagents used are indicated at the first appearance.
Examples
Referring to fig. 1 to 11, a disposable pants-type sanitary napkin comprises an outer garment layer and an absorber disposed in the outer garment layer, wherein the outer garment layer is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, the outer garment layer is composed of a front waist abdominal-surrounding elastic sheet 1, a crotch inelastic sheet 2 and a back waist-hip surrounding elastic sheet 3 which are sequentially connected along the longitudinal direction, the front waist abdominal-surrounding elastic sheet 1 and the back waist-hip surrounding elastic sheet 3 are both formed by compounding an elastic nonwoven fabric 4 and a spun-bonded nonwoven fabric 5, the transverse two sides of the front waist abdominal-surrounding elastic sheet 1 and the back waist-hip surrounding elastic sheet 3 are fixedly connected to form a structure with a waist opening and two leg openings, the spun-bonded nonwoven fabric 5 is folded inwards and downwards at the waist opening towards the body contact side, the longitudinal length of the folded region 6 is 30mm, an elastic band 61 is disposed in the folded region 6, the longitudinal length of the front waist abdominal-surrounding elastic sheet 1 is 180mm, the longitudinal length of the back waist-hip circumference elastic piece 3 is 200mm, and the longitudinal lengths of the front waist-abdomen circumference elastic piece 1 and the back waist-hip circumference elastic piece 3 have certain difference and are more fit with the curve of a human body; the 4 grammes per square metre of elasticity non-woven fabrics is 50gsm, elasticity non-woven fabrics 4 comprises upper polypropylene layer 41, bottom polypropylene layer 43 and locates elastomer 42 between the two, and the mass fraction of upper polypropylene layer 41 accounts for and is 15%, and the mass fraction of bottom polypropylene layer 43 accounts for and is 15%, and the mass fraction of elastomer 42 accounts for and is 70%, elastomer 42 is SBS block copolymer type elastomer, and the three-layer fibre web structure of this elasticity non-woven fabrics carries out fixed bonding through the hot roll, and the nip area accounts for and is 11%, but the stability of the maximum assurance elasticity non-woven fabrics structure of existence on polypropylene layer avoids taking place the elasticity loss at in-process such as rolling, cutting, storage.
The absorber comprises a liquid-permeable surface layer 8, a diversion layer 9, an upper layer absorbent paper 10, a middle convex absorbent paper 11, a bottom layer absorbent paper 17 and a liquid-tight bottom layer 14 which are sequentially arranged from top to bottom in a laminated manner, wherein the liquid-permeable surface layer 8 consists of a hydrophilic non-woven fabric 81 and leakproof separation edges 82 arranged on the two transverse sides of the hydrophilic non-woven fabric, rubber strings 83 are arranged in the leakproof separation edges, the liquid-tight bottom layer 14 consists of a PE film, 4 rubber strings 15 which extend along the longitudinal direction and are arranged side by side along the transverse interval are arranged between the bottom layer absorbent paper 17 and the liquid-tight bottom layer 14, the longitudinal length of each rubber string 15 is 2/3 of the longitudinal length of the bottom layer absorbent paper 17, the transverse area of the 4 rubber strings is 2/3 of the transverse width of the bottom layer absorbent paper 17, the middle convex absorbent paper 11 is arranged in the upper longitudinal half area of the absorber, cutting lines 12 which penetrate through the middle convex absorbent paper 11 and the bottom layer absorbent paper 17 are uniformly arranged on the upper layer absorbent paper 10 in an interval manner, the liquid-permeable surface layer 8 is provided with a diversion trench 16 penetrating through the diversion layer 9, the upper absorbent paper 10, the middle convex absorbent paper 11 and the bottom absorbent paper 17, and the liquid-permeable surface layer 8, the diversion layer 9, the upper absorbent paper 10, the middle convex absorbent paper 11 and the bottom absorbent paper 17 are connected through the diversion trench 16; the cross section of the convex absorbent paper 11 is of an e-shaped folding structure, namely, the convex absorbent paper is formed by folding the absorbent paper inwards in the transverse direction, folding the absorbent paper inwards in the transverse direction again, and folding the absorbent paper twice in the same direction, so that the structure layer is thick relative to the upper absorbent paper 10 and the bottom absorbent paper 17.
In addition, the outer surface of the back waist-hip circumference elastic sheet of the coat layer of the product is also provided with a disposable patch 18, and the disposable patch 18 is adhered to the outer surface of the back waist-hip circumference elastic sheet by glue.
Specifically, the preparation method of the disposable pants-type sanitary product comprises the following steps:
comprising the steps of preparing a garment layer, preparing an absorbent body, fixing the absorbent body on the garment layer, welding the absorbent body into a trouser-shaped structure and cutting the trouser-shaped structure into individual products, wherein the step of preparing the garment layer comprises the following steps:
a. preparing an elastic nonwoven comprising:
a1, adding a layer of elastomer on the polypropylene layer;
a2, adding a polypropylene layer on the elastomer obtained in the step a1, and fixedly connecting the polypropylene layer and the elastomer into a whole through hot rolling to obtain an elastic non-woven fabric with a three-layer fiber net layer structure;
b. b, sending the elastic non-woven fabric prepared in the step a into an activation system for activation treatment;
the activation system comprises an input driving roller a, two groups of heating roller sets b, a traction driving roller e, an activation gear c and an output driving roller d, the input driving roller a, the heating roller sets b, the traction driving roller e, the activation gear c and the output driving roller d are respectively in transmission connection with a power output end, and the activation treatment is to activate the elastic non-woven fabric sequentially through the input driving roller a, the heating roller sets b, the traction driving roller e, the activation gear c and the output driving roller d; the linear speed of the output driving roller d is 2 times of that of the input driving roller a, the linear speed of the traction driving roller e is consistent with that of the input driving roller a, each heating roller group b consists of two heating rollers, the rotating directions of the heating rollers are opposite, the front surface and the back surface of the elastic non-woven fabric are respectively contacted with the heating rollers, the heating temperature of each heating roller is 48 ℃, the included angle of the contact part of the elastic non-woven fabric and each heating roller along the circumferential direction is 180 degrees, the activation gear consists of a pair of gears, namely a c1 gear and a c2 gear, flat teeth c3 are uniformly arranged on the circumferential side surface of each gear at intervals, and the flat teeth of the pair of gears are distributed in a staggered mode during operation;
c. b, cutting the elastic non-woven fabric prepared in the step b along the longitudinal direction, and compounding the cut elastic non-woven fabric and the spun-bonded non-woven fabric into a whole through hot melt adhesive, wherein the cut elastic non-woven fabric is respectively positioned at the two longitudinal sides of the spun-bonded non-woven fabric, and thus the coat layer is prepared;
the preparation of the absorber comprises the following steps:
1) preparing a liquid-permeable surface layer: compounding a layer of hydrophobic non-woven fabric on the two transverse sides of the hydrophilic non-woven fabric in an online manner;
2) preparing a flow guide layer;
3) preparing an absorbent core: preparing upper absorbent paper, preparing convex absorbent paper, preparing bottom absorbent paper, combining the upper absorbent paper, the convex absorbent paper and the bottom absorbent paper into a whole, and performing open cutting line treatment, wherein the open cutting line treatment specifically comprises the following steps: superposing the upper layer absorbent paper, the middle convex absorbent paper and the bottom layer absorbent paper together, and cutting the surface of the upper layer absorbent paper by a cutter, wherein a cutting line penetrates from the upper layer absorbent paper to the bottom layer absorbent paper;
4) preparing a rubber band: the number of the rubber bands is 4, the longitudinal length of each rubber band is 2/3 of the longitudinal length of the bottom layer absorbent paper, and the transverse area of the rubber band accounts for 2/3 of the transverse width of the bottom layer absorbent paper;
5) preparing a liquid-impermeable bottom layer: spraying glue on the bottom layer of the PE film on line to compound a layer of non-woven fabric;
6) the prepared rubber band is firstly compounded with the prepared liquid-tight bottom layer into a whole in an online manner, wherein the rubber band is arranged on the PE film, and then the prepared absorption core, the flow guide layer and the liquid-tight top layer are sequentially compounded on the PE film to prepare an absorber, and then the absorber is cut into single articles and is rotated by 90 degrees to be transmitted to the next process in an online manner;
the coat layer is also subjected to inner wrapping treatment, and the specific treatment steps are as follows: and c, after the spun-bonded non-woven fabric in the step c is compounded with the cut elastic non-woven fabric, spraying rubber bands at the positions 30mm away from the longitudinal two ends of the spun-bonded non-woven fabric, and then folding the area sprayed with the rubber bands downwards and inwards to form an inner packaging area.
In the invention, the longitudinal length of the wrapping and folding area is 20-50mm, and the longitudinal length of the front waist abdominal circumference elastic sheet is 15-50mm shorter than that of the back waist hip circumference elastic sheet; the longitudinal length of each rubber band is 1/3-4/5 of the longitudinal length of the bottom layer absorbent paper, the transverse area of the rubber band distribution accounts for 1/3-4/5 of the transverse width of the bottom layer absorbent paper, the gram weight of the elastic non-woven fabric is 30-80gsm, the included angle of the elastic non-woven fabric and each heating roller in the contact distribution along the circumferential direction is more than 120 degrees, and the purpose of the invention can be realized within the parameter range.
The pants-type sanitary article of the present invention may be a pants-type diaper, a pants-type adult diaper, or the like, in addition to the pants-type sanitary napkin described in the examples.
The front waist abdominal circumference elastic sheet and the back waist hip circumference elastic sheet can also be formed by compounding elastic non-woven fabrics and hot air non-woven fabrics.
The elastic non-woven fabric can be cut into halves before activation, then activated after cutting, and then compounded with spun-bonded non-woven fabric or hot-air non-woven fabric after activation, and a process flow chart can refer to fig. 12.
The elastic non-woven fabric is prepared and then needs to be rolled for later use and then is sent into a production line of hygienic products for use.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (6)
1. A preparation method of disposable pants-type sanitary products comprises the steps of preparing an outer garment layer, preparing an absorber, fixedly arranging the absorber on the outer garment layer, welding the absorber into a pants-shaped structure and cutting the pants-shaped structure into single products, and is characterized in that:
said preparing the garment layer comprises the steps of:
a. preparing an elastic nonwoven comprising:
a1, adding a layer of elastomer on the polypropylene layer;
a2, adding a polypropylene layer on the elastomer obtained in the step a1, and fixedly connecting the polypropylene layer and the elastomer into a whole through hot rolling to obtain elastic non-woven fabric with a three-layer structure;
b. b, sending the elastic non-woven fabric prepared in the step a into an activation system for activation treatment;
the activation system comprises an input driving roller, at least one group of heating roller sets, a traction driving roller, an activation gear and an output driving roller, the input driving roller, the heating roller sets, the traction driving roller, the activation gear and the output driving roller are respectively in transmission connection with a power output end, and the activation treatment is to activate the elastic non-woven fabric sequentially through the input driving roller, the heating roller sets, the traction driving roller, the activation gear and the output driving roller; the linear speed of the output driving roller is 1.5-2.5 times of the linear speed of the input driving roller, the linear speed of the traction driving roller is consistent with that of the input driving roller, each heating roller set comprises at least two heating rollers, the front surface and the back surface of the elastic non-woven fabric are respectively contacted with at least one heating roller of the heating roller sets, the heating temperature of each heating roller is set to be 40-60 ℃, the included angle of the contact part of the elastic non-woven fabric and each heating roller along the circumferential direction is more than 120 degrees, the activation gear consists of a pair of gears, flat teeth are uniformly arranged on the circumferential side surface of each gear at intervals, and the flat teeth of the pair of gears are distributed in a staggered mode when the;
c. and d, cutting the elastic non-woven fabric prepared in the step b along the longitudinal direction, and then compounding the cut elastic non-woven fabric and the spun-bonded non-woven fabric into a whole through hot melt adhesive or ultrasonic waves, wherein the cut elastic non-woven fabrics are respectively positioned at the two longitudinal sides of the spun-bonded non-woven fabric, and thus the coat layer is prepared.
2. The method of making a disposable pant-type sanitary article according to claim 1, wherein: the preparation of the absorber comprises the following steps:
1) preparing a liquid-permeable top layer;
2) preparing a flow guide layer;
3) preparing an absorbent core: preparing upper absorbent paper, preparing convex absorbent paper, preparing bottom absorbent paper, combining the upper absorbent paper, the convex absorbent paper and the bottom absorbent paper into a whole, and performing open cutting line treatment, wherein the open cutting line treatment specifically comprises the following steps: cutting the surface of the upper layer of absorbent paper, wherein a cutting line penetrates from the upper layer of absorbent paper to the bottom layer of absorbent paper;
4) preparing a rubber band: 3-5 rubber bands, wherein the longitudinal length of each rubber band is 1/3-4/5 of the longitudinal length of the bottom layer absorbent paper, and the transverse area of the rubber band distribution accounts for 1/3-4/5 of the transverse width of the bottom layer absorbent paper;
5) preparing a liquid impermeable back sheet;
6) the prepared rubber band and the prepared liquid-tight bottom layer are firstly compounded into a whole on line, then the prepared absorption core, the flow guide layer and the liquid-tight surface layer are sequentially compounded on the rubber band to prepare the absorber, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees.
3. The method of making a disposable pant-type sanitary article according to claim 1, wherein: the coat layer is also subjected to inner wrapping treatment, and the specific treatment steps are as follows: and c, after the spun-bonded non-woven fabric in the step c is compounded with the cut elastic non-woven fabric, spraying rubber bands at the positions 20-50mm from the two longitudinal ends of the spun-bonded non-woven fabric, and then folding the area sprayed with the rubber bands downwards and inwards to form an inner packaging area.
4. The method of making a disposable pant-type sanitary article according to claim 2, wherein: the convex absorbent paper is arranged in the upper half area in the longitudinal direction of the absorbent body.
5. The method of making a disposable pant-type sanitary article according to claim 1, wherein: the elastic non-woven fabric is characterized by comprising a polypropylene layer, an elastic body, a hot roller and a hot roller, wherein the gram weight of the elastic non-woven fabric is 30-80gsm, the elastic body is an SBS block copolymer type elastic body or a polyolefin type elastic body, the mass fraction of the polypropylene layer is 10-40%, the mass fraction of the elastic body is 30-80%, the elastic non-woven fabric is obtained by fixing and bonding through the hot roller, and the roll point area fraction is 10-15%.
6. The method of making a disposable pant-type sanitary article according to claim 2, wherein: the cross section of the convex absorbent paper is of an e-shaped folding structure.
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| CN201911165338.1A CN110946711B (en) | 2019-11-25 | 2019-11-25 | Preparation method of disposable pants-type sanitary product |
| PCT/CN2020/130705 WO2021104183A1 (en) | 2019-11-25 | 2020-11-22 | Preparation method for disposable trouser-type hygiene product |
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| CN201911165338.1A CN110946711B (en) | 2019-11-25 | 2019-11-25 | Preparation method of disposable pants-type sanitary product |
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| CN110946711B (en) * | 2019-11-25 | 2021-05-04 | 福建恒安集团有限公司 | Preparation method of disposable pants-type sanitary product |
| CN110946710B (en) * | 2019-11-25 | 2021-04-02 | 福建恒安集团有限公司 | Disposable pants-type sanitary product |
| CN112998966A (en) * | 2021-05-06 | 2021-06-22 | 郑金池 | Pants-inserted sanitary towel and processing method thereof |
| CN114633527A (en) * | 2022-04-02 | 2022-06-17 | 盟迪(中国)薄膜科技有限公司 | Composite non-woven fabric with four-side elasticity and manufacturing method thereof |
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| ZA9510604B (en) * | 1994-12-20 | 1996-07-03 | Kimberly Clark Co | Low gauge films and film/nonwoven laminates |
| DE19526044C2 (en) * | 1995-07-17 | 1999-03-18 | M & W Verpackungen Gmbh | Fluffy composite film and method for producing such a composite film |
| US7220478B2 (en) * | 2003-08-22 | 2007-05-22 | Kimberly-Clark Worldwide, Inc. | Microporous breathable elastic films, methods of making same, and limited use or disposable product applications |
| CN1314379C (en) * | 2003-12-14 | 2007-05-09 | 福建恒安集团有限公司 | Method for preparing short pants type paper urine pants and article fabricated |
| MXPA06014971A (en) * | 2004-06-29 | 2007-02-08 | Avery Dennison Corp | Nonwoven-elastomeric laminate with improved bonding between elastomer and nonwoven web. |
| US20060063454A1 (en) * | 2004-09-17 | 2006-03-23 | Chung Tze W P | Method of producing low cost elastic web |
| US7806883B2 (en) * | 2006-01-17 | 2010-10-05 | The Procter & Gamble Company | Absorbent articles having a breathable stretch laminate |
| US20080305298A1 (en) * | 2007-06-11 | 2008-12-11 | 3M Innovative Properties Company | Laser activation of elastic laminates |
| JP5150163B2 (en) * | 2007-08-10 | 2013-02-20 | ユニ・チャーム株式会社 | Wearing article manufacturing equipment |
| CN201775722U (en) * | 2010-07-10 | 2011-03-30 | 雀氏（福建）实业发展有限公司 | Improved paper diaper |
| CN103027790B (en) * | 2011-10-09 | 2014-09-17 | 安庆市恒昌机械制造有限责任公司 | Manufacturing equipment assembly of training pants and manufacturing method thereof |
| EP2644174A1 (en) * | 2012-03-29 | 2013-10-02 | The Procter and Gamble Company | Method and apparatus for making personal hygiene absorbent articles |
| EP3215084B1 (en) * | 2014-11-06 | 2022-01-05 | The Procter & Gamble Company | Pre-strained laminates and methods for making the same |
| CN106913421B (en) * | 2016-08-18 | 2019-12-10 | 黄山富田精工制造有限公司 | method for manufacturing wearing article |
| CN110267632B (en) * | 2017-02-13 | 2022-08-12 | 宝洁公司 | Laminate for absorbent article and method of making the same |
| CN108938215A (en) * | 2018-05-07 | 2018-12-07 | 浙江卫星新材料科技有限公司 | Absorptive core structure for disposable sanitary articles |
| CN110946711B (en) * | 2019-11-25 | 2021-05-04 | 福建恒安集团有限公司 | Preparation method of disposable pants-type sanitary product |
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