CN113616423A - Multi-section combined type pants-type sanitary towel and preparation method thereof - Google Patents
Multi-section combined type pants-type sanitary towel and preparation method thereof Download PDFInfo
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- CN113616423A CN113616423A CN202110871385.9A CN202110871385A CN113616423A CN 113616423 A CN113616423 A CN 113616423A CN 202110871385 A CN202110871385 A CN 202110871385A CN 113616423 A CN113616423 A CN 113616423A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
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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
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Abstract
The invention relates to the field of sanitary products, and provides a multi-section combined pants-type sanitary towel and a preparation method thereof, which solve the problems of strong sense of strangeness and being not worn due to the defects of the structural design of the pants-type sanitary towel in the prior art, and comprise the following preparation steps: 1) preparation of the front piece of the coat layer: a. preparing a waist and abdomen surrounding part; b. preparing abdomen-hip circumference and leg circumference parts; c. splicing treatment; 2) preparing an absorber; 3) folding of the absorbent body; 4) compounding the absorber with the front piece of the coat layer; 5) preparing a back piece of the coat layer; 6) a composite garment layer backsheet; 7) sealing and pressing the crotch; 8) the front piece and the back piece of the coat layer are sealed and pressed at the two transverse sides; 9) and (6) slitting.
Description
Technical Field
The invention relates to the field of sanitary products, in particular to a multi-section combined pants-type sanitary towel and a preparation method thereof.
Background
Catamenial pant-type sanitary napkins generally consist of an absorbent layer and an outer garment layer. The absorber includes from top to bottom in proper order the liquid-permeable surface course that the stromatolite set up, absorb core and liquid-tight nature bottom. The outer clothing layer of the common pants-type sanitary towel on the market has two structural modes: the garment is characterized in that a front piece and a rear piece of the garment layer are independently compounded with an absorber layer, elastic materials such as elastic films, elastic cloth or elastic spandex yarns are distributed on the front piece and the rear piece, and the front piece and the rear piece are pressed on two sides through ultrasonic waves or hot air. The other is that the coat layer is compounded with the absorber layer in a one-piece way, and a front waist abdominal circumference elastic area, a crotch leg circumference elastic area and a back waist hip circumference elastic area are sequentially distributed on the one-piece structure of the outer coat layer along the longitudinal direction. The menstrual pants-type sanitary napkins are divided into a flat angle mode and a triangular mode according to different wrapping areas of the shape and the contour of the outer garment layer on legs. Whatever the structure of the sanitary napkin pants, the widths of the waist-abdomen-surrounding section/waist-hip-surrounding section/leg-surrounding section are the same when the outer garment layer is fully unfolded. Because the waist/abdomen/leg widths of the human body are different, when the waist/abdomen/waist-hip/leg material unfolding widths are the same, the requirement of no-falling during wearing can be met only by controlling different stretching ratios of the elastic materials at the waist/abdomen/leg. However, this method has the disadvantage that in order to adapt to the comfort of the maximum circumference area (generally, hip circumference or leg circumference), the maximum extension of the outer garment layer is relatively large, and at this time, the smaller circumference area (generally, waist circumference) needs to make the stretch ratio of the elastic material large, and the waist circumference or other circumferences need to be contracted to ensure that the outer garment does not fall off when worn. The greater the stretch ratio, the more wrinkled the product appearance and the more noticeable the feeling of strangeness in wear, so consumers often give feedback on panti-type sanitary napkins or fit-up which is too loose or too tight, and fit-up panti-type sanitary napkins also tend to cause leakage of menstrual blood.
Chinese patent No. 201920461090.2 discloses a pull-up diaper provided with sectional ultrasonic bonding points, the front waist portion and the rear waist portion of the pull-up diaper horizontally include a first mounting region located at both ends, a third mounting region located in the middle, and a second mounting region located between the first mounting region and the third mounting region; elastic bodies and hot melt adhesives are arranged in the first mounting area and the third mounting area and are used for fixing the outer-layer non-woven fabric, the inner-layer non-woven fabric and the elastic bodies together; the second mounting region is provided with at least one ultrasonic spaced-apart pressing region for pressing the outer layer nonwoven fabric and the inner layer nonwoven fabric together (excluding the elastic body). According to the elastic waistline stretching device, the pressing structures are arranged in different areas, so that the space for free stretching is increased, the glue consumption is effectively saved, and the softness and the air permeability are remarkably improved on the premise of ensuring that the stretching effect of the elastic waistline is met; and the elastic body is not easy to deviate and deform, so that the structure of the elastic waistline is more stable. The pull-up pants catch up the waist area, but also do not solve the problem of not fitting the body if worn too loosely or too tightly.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides a multi-section combined sanitary napkin and a method for manufacturing the same, which solves the problems of strong feeling and being not worn properly due to the structural design of the sanitary napkin in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for preparing a multi-section combined trouser-type sanitary towel comprises the following preparation steps:
1) preparation of the front piece of the coat layer:
a. preparing the waist and abdomen surrounding part: the first nonwoven fabric is uncoiled on line and continuously conveyed, waist and abdomen elastic materials are compounded on the surface of the first nonwoven fabric, and then the first nonwoven fabric is folded and covered on the elastic materials;
b. preparing the abdomen-hip circumference and leg circumference parts: the second non-woven fabric is uncoiled on line and continuously conveyed, the elastic materials of the abdominal, buttock and leg circumferences are compounded on the surface of the second non-woven fabric, and then a third non-woven fabric is compounded on the elastic materials on line to obtain the abdominal, buttock and leg circumference parts with the abdominal, buttock and leg circumference areas;
c. splicing treatment: c, the abdomen-hip circumference part and the leg circumference part which are prepared in the step b are in on-line transmission splicing to the waist-abdomen circumference part which is prepared in the step a, wherein during splicing, the abdomen-hip circumference area and the waist-abdomen circumference part are spliced, and the splicing position has an overlapping area which is larger than 3mm in the longitudinal direction;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4 on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
Further: and (3) folding and compounding small envelopes on the product treated in the step (9).
Further: the length of the B face of the absorber in the longitudinal direction is greater than that of the A face.
Further: the splicing treatment is realized by gluing and hot pressing.
Further: the splicing treatment is realized by ultrasonic wave compounding.
The invention also provides a preparation method with the same conception, which comprises the following steps:
a method for preparing a multi-section combined trouser-type sanitary towel comprises the following preparation steps:
1) preparation of the front piece of the coat layer:
a. preparing the waist and abdomen surrounding part: the first nonwoven fabric is uncoiled on line and continuously conveyed, waist and abdomen elastic materials are compounded on the surface of the first nonwoven fabric, and then the first nonwoven fabric is folded and covered on the elastic materials;
b. preparation of the abdomen-hip circumference part: the second non-woven fabric is uncoiled on line and continuously transmitted, the abdominal and buttock circumference elastic material is compounded on the surface of the second non-woven fabric, and then a third non-woven fabric is compounded on the elastic material on line to obtain an abdominal and buttock circumference part;
c. preparing the leg surrounding parts: the fourth non-woven fabric is uncoiled on line and continuously transmitted, the leg circumference elastic material is compounded on the surface of the fourth non-woven fabric, and then a layer of fifth non-woven fabric is compounded on the elastic material on line to obtain a leg circumference part;
d. splicing treatment: c, the abdomen-hip circumference part prepared in the step b is in on-line transmission splicing to the waist-abdomen circumference part prepared in the step a, the leg circumference part prepared in the step c is in on-line transmission splicing to the waist-abdomen circumference part spliced with the abdomen-hip circumference part, when the abdomen-hip circumference part and the waist-abdomen circumference part are spliced, an overlapping area larger than 3mm is formed at the splicing position in the longitudinal direction, and an overlapping area larger than 3mm is formed at the splicing position in the longitudinal direction of the abdomen-hip circumference part and the leg circumference part;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4) on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
Further: and (3) folding and compounding small envelopes on the product treated in the step (9).
Further: the length of the B face of the absorber in the longitudinal direction is greater than that of the A face.
Further: the splicing treatment is realized by gluing and hot pressing.
Further: the splicing treatment is realized by ultrasonic wave compounding.
Further: the shape of the ultrasonic welding point is rectangular, circular or elliptical during ultrasonic compounding.
Further: the area of the welding area accounts for more than 30% of the splicing overlapping area.
Further: the circumference of the waist and abdomen surrounding part after being completely unfolded is 500-1800 mm, the elastic material of the waist and abdomen surrounding part is elastic spandex filaments, the number of the elastic spandex filaments is more than 2, the thickness of the elastic spandex filaments is 200-1100 dtex, the gaps among the elastic spandex filaments are 2-12 mm, and the stretching ratio of the elastic spandex filaments is 1.5-5.5; the first non-woven fabric and the second non-woven fabric of the waist and abdomen surrounding part are hot air non-woven fabrics or spun-bonded non-woven fabrics.
Further: the circumference of the completely unfolded abdomen-hip circumference part is 800-2400 mm, the abdomen-hip circumference elastic material of the abdomen-hip circumference part is elastic spandex filaments or elastic non-woven fabric, when the abdomen-hip circumference elastic material is the elastic spandex filaments, the number of the elastic spandex filaments is more than 2, the thickness is 200-1100 dtex, the gap between the elastic spandex filaments is 2-20 mm, and the stretch ratio of the elastic spandex filaments is 1.5-8.0; the third non-woven fabric and the fourth non-woven fabric are hot-air non-woven fabrics or spun-bonded non-woven fabrics; when the hip elastic material is elastic non-woven fabric, the stretch ratio of the elastic non-woven fabric is 1.2-4.
Further: the circumference of one leg surrounding part after being completely unfolded is 300-1000 mm, the elastic material of the leg surrounding part is elastic spandex filaments, the number of the elastic spandex filaments is more than 2, the thickness of the elastic spandex filaments is 200-1100 dtex, the gaps among the elastic spandex filaments are 2-25 mm, and the stretch ratio of the elastic spandex filaments is 1.5-6.5; the fifth non-woven fabric is a hot-air non-woven fabric or a spun-bonded non-woven fabric, the sixth non-woven fabric is an elastic non-woven fabric, and the stretch ratio of the elastic non-woven fabric is 1.2-5.5.
A multi-section combined pants-type sanitary towel comprises a coat layer and an absorber arranged in the coat layer, wherein the coat layer is composed of a coat layer front piece and a coat layer rear piece, the coat layer front piece is formed by splicing waist and abdomen surrounding parts, abdomen and hip surrounding parts and leg surrounding parts through ultrasonic welding or glue applying compounding or hot pressing compounding, the splicing position is provided with an overlapping area of more than 3mm in the longitudinal direction, the area of the welding area accounts for more than 5% of the splicing overlapping area, the absorber is provided with A, B faces, the longitudinal length of the face B is larger than that of the face A, the face B is fixedly connected with the coat layer rear piece through glue spraying, and the face A is connected with the coat layer front piece through glue spraying; the multi-section combined sanitary napkin has a crotch region, and the crotch region is provided with a sealing part to form leg openings with two trouser legs.
By adopting the technical scheme, the invention has the beneficial effects that:
1. according to the preparation method of the multi-section combined pants-type sanitary towel, the front piece and the rear piece of the coat layer are prepared in a splicing mode, the waist and abdomen surrounding parts, the abdomen-hip surrounding parts and the leg surrounding parts are prepared respectively and then are subjected to online transmission splicing treatment, and the materials and the widths of the waist and abdomen surrounding parts, the hip and abdomen surrounding parts and the leg surrounding parts are designed differently, so that the final finished product has a comfortable wearing feeling, is not too tight and cannot be too loose to wear.
2. The front piece and the back piece of the coat layer are arranged in parallel in the preparation process, the first mode is that the abdomen-hip circumference and the leg circumference part are designed into a whole and then spliced with the waist-abdomen circumference part, the second mode is that the abdomen-hip circumference part and the leg circumference part are designed separately, the two modes are combined into a whole in a splicing mode, and then the abdomen-hip circumference part and the waist-abdomen circumference part are spliced.
3. After the trouser sanitary napkin obtained by the preparation method is completely unfolded, the girth of the abdomen-hip circumference is larger than that of the waist-abdomen circumference, the sum of the girths of the two leg circumferences is larger than or equal to the girth of the abdomen-hip circumference, and the stretch ratio and the interval arrangement of the elastic spandex filaments and the elastic non-woven fabric are combined, so that the obtained final product has the advantages that compared with the traditional product, the waist-abdomen circumference area is not tight, the abdomen-hip circumference area is close to the skin, and the wearing is comfortable.
4. The abdomen-hip circumference area is spliced with the waist-abdomen circumference part, and the splicing position is an overlapping area with the length direction larger than 3mm, so that the abdomen-hip circumference area and the waist-abdomen circumference part are firmly combined and are not easy to separate.
5. The absorbent body has AB surfaces with different lengths after being folded, and the length of B in the longitudinal direction, which is fixedly connected with the back piece of the coat layer, is larger than that of A surface, so that the sanitary towel has a certain back leakage prevention function.
6. The area of the welding area accounts for more than 5% of the splicing overlapping area, so that the welding position is firmer.
7. The circumference of the waist-abdomen surrounding part after being completely unfolded is 500-plus 1800mm, the circumference of the abdomen-hip surrounding part after being completely unfolded is 800-plus 2400mm, the circumference of one leg surrounding part after being completely unfolded is 300-plus 1000mm, the widening of the waist-abdomen surrounding part is smaller than that of the abdomen-hip surrounding part, the unfolding of the leg surrounding part is more than or equal to that of the abdomen-hip surrounding part, the integral width of the front piece and the rear piece of the coat layer is reasonable in design, and the coat layer is comfortable to wear.
8. The waist-abdomen-surrounding elastic material is elastic spandex filaments, the abdomen-hip-surrounding elastic material of the abdomen-hip-surrounding part is elastic spandex filaments or elastic non-woven fabric, the leg-surrounding elastic material is elastic spandex filaments, when all the elastic spandex filaments are selected, the number is more than 2, preferably, the waist-abdomen-surrounding elastic spandex filaments are 10, the thickness is 200-minus 1100dtex, the gap is 2-12 mm, the stretching ratio is 1.5-5.5, the abdomen-hip-surrounding elastic spandex filaments are 33, the thickness is 200-minus 1100dtex, the gap is 2-20 mm, the stretching ratio is 1.5-8.0, the leg-surrounding elastic spandex filaments are 3, the thickness is 200-minus 1100dtex, and the stretching ratio is 1.5-6.5, and the obtained panty-type sanitary towel is not too loose and fits the body by controlling the number, the thickness, the gap and the stretching ratio of the spandex filaments in three different areas.
Drawings
FIG. 1 is a schematic structural diagram of a product according to a first embodiment of the present invention;
FIG. 2 is a schematic view of a folded absorbent structure according to a first embodiment of the present invention;
FIG. 3 is a plan expanded view of FIG. 1;
FIG. 4 is a schematic flow chart of a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a product according to a second embodiment of the present invention.
Detailed Description
Example one
Referring to fig. 1 to 4, a method for manufacturing a multi-segment combined pants-type sanitary napkin comprises the following steps:
1) preparation of the front piece of the coat layer:
a. preparing the waist and abdomen surrounding part: the hot-air non-woven fabric is uncoiled on line and continuously transmitted, the hot-air non-woven fabric is defined to have the transverse direction along the transmission direction and the longitudinal direction vertical to the transverse direction, the hot-air non-woven fabric is provided with an upper area and a lower area which are symmetrically distributed along the transverse central line, elastic spandex filaments are compounded on the surface of the lower area of the hot-air non-woven fabric on line, the upper area of the hot-air non-woven fabric is folded and covered on the surface of the elastic spandex filaments of the lower area, and the upper area, the elastic spandex filaments and the lower area are fixed together through glue spraying to obtain a waist and abdomen surrounding part; the circumference of the waist and abdomen surrounding part after being completely unfolded is 600mm, the number of the waist and abdomen surrounding part is 10, the thickness of the elastic spandex filaments is 800dtex, the gaps among the elastic spandex filaments are 3mm, and the stretching ratio of the elastic spandex filaments is 2.5; the length of the waist and abdomen surrounding part in the longitudinal direction is 44 mm;
b. preparing the abdomen-hip circumference and leg circumference parts: the hot-air non-woven fabric is uncoiled on line and continuously conveyed, the abdomen-hip circumference and leg circumference elastic materials are compounded on the surface of the hot-air non-woven fabric, then the spun-bonded non-woven fabric is compounded on the elastic material on line, so that an abdomen-hip circumference and leg circumference part with an abdomen-hip circumference area and a leg circumference area is obtained, the abdomen-hip circumference elastic materials and the leg circumference elastic materials are all elastic spandex filaments, the number of the abdomen-hip circumference elastic spandex filaments is 33, the stretching ratio is 2.7, the thickness is 500dtex, the gap between the elastic spandex filaments is 4mm, the circumference of the completely unfolded abdomen-hip circumference and leg circumference part is 700mm, the number of the leg circumference elastic spandex filaments is 3, the stretching ratio is 3, the gap is 9mm, and the thickness is 900 dtex; the abdomen-hip circumference and the hip circumference part are of an integrated structure, namely, the abdomen-hip circumference and the hip circumference part have a common surface layer hot air non-woven fabric and a common bottom layer spun-bonded non-woven fabric, only the difference exists in the distribution of elastic materials, the abdomen-hip circumference elastic materials have more spandex filaments, the distance between the first elastic spandex filament in the longitudinal direction of the leg circumference area and the last longitudinal spandex filament of the abdomen-hip circumference elastic materials is 60mm, and the elastic spandex filaments are not distributed in the distance; the longitudinal length of the abdomen-leg surrounding area is 271mm, and the longitudinal length of the leg surrounding area is 30 mm;
c. splicing treatment: c, the abdomen-hip circumference part and the leg circumference part which are prepared in the step b are in on-line transmission splicing to the waist-abdomen circumference part which is prepared in the step a, wherein during splicing, the abdomen-hip circumference area and the waist-abdomen circumference part are spliced, and the splicing position has an overlapping area of 10mm in the longitudinal direction; the splicing treatment is fixed by ultrasonic wave compounding, the shape of an ultrasonic welding point is oval during ultrasonic wave compounding, and the area of a welding area accounts for 40% of a splicing overlapping area;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface, wherein the length of the B surface of the absorber in the longitudinal direction is greater than that of the A surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4) on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
10) Folding and compounding small package films on the product processed in the step 9) to obtain a small package product.
The multi-section combined pants-type sanitary napkin provided by the embodiment comprises a garment layer front piece 1, a garment layer rear piece 2 and an absorber 3, wherein the garment layer front piece and the garment layer rear piece 2 have the same structure, specifically, the garment layer front piece is formed by splicing a waist and abdomen surrounding part 4, an abdomen and hip surrounding part and a leg surrounding part 5, the splicing position is provided with an overlapping area of 10mm in the longitudinal direction, the splicing treatment is realized by ultrasonic wave compounding, the shape of an ultrasonic welding point is oval 6 during ultrasonic wave compounding, and the area of the welding area accounts for 40% of the splicing overlapping area; the absorbent body has A, B sides, the longitudinal length of the B side is greater than that of the A side, the B side is fixedly connected with the back piece of the coat layer through spraying glue, the A side is connected with the front piece of the coat layer through spraying glue, the pants-type sanitary towel has a crotch area, and a sealing part 8 is arranged in the crotch area to form a leg opening with two pants sleeves.
Example two
A method for preparing a multi-section combined type medium-sized pants-type sanitary towel comprises the following preparation steps:
1) preparation of the front piece of the coat layer:
a. the hot-air non-woven fabric is uncoiled on line and continuously transmitted, the hot-air non-woven fabric is defined to have the transverse direction along the transmission direction and the longitudinal direction vertical to the transverse direction, the hot-air non-woven fabric is provided with an upper area and a lower area which are symmetrically distributed along the transverse central line, elastic spandex filaments are compounded on the surface of the lower area of the hot-air non-woven fabric on line, the upper area of the hot-air non-woven fabric is folded and covered on the surface of the elastic spandex filaments of the lower area, and the upper area, the elastic spandex filaments and the lower area are fixed together through glue spraying to obtain a waist and abdomen surrounding part; the circumference of the waist and abdomen surrounding part after being completely unfolded is 600mm, the number of the waist and abdomen surrounding part is 10, the thickness of the elastic spandex filaments is 800dtex, the gaps among the elastic spandex filaments are 3mm, and the stretching ratio of the elastic spandex filaments is 2.5;
b. preparation of the abdomen-hip circumference part: the hot-air non-woven fabric is uncoiled on line and continuously transmitted, elastic spandex filaments are compounded on the surface of the hot-air non-woven fabric, and then a spun-bonded non-woven fabric is compounded on the elastic non-woven fabric on line to obtain an abdomen-hip circumference part; the circumference of the abdomen-hip circumference part after being completely unfolded is 700mm, the number of the abdomen-hip circumference part is 33, the stretching ratio of the elastic spandex filaments is 2.7, the thickness of the elastic spandex filaments is 500dtex, and the gaps among the elastic spandex filaments are 4 mm;
c. preparing the leg surrounding parts: the hot-air non-woven fabric is uncoiled on line and continuously transmitted, elastic spandex filaments are compounded on the surface of the hot-air non-woven fabric, and then an elastic non-woven fabric is compounded on the elastic spandex filaments on line to obtain a leg surrounding part; the circumference of the completely unfolded single leg circumference is 350mm, the number of the leg circumferences is 3, the thickness of the elastic spandex filaments is 900dtex, gaps among the elastic spandex filaments are 10mm, the stretch ratio of the elastic spandex filaments is 3, and the stretch ratio of the elastic non-woven fabric is 1.5; the whole leg circumference area is covered by elastic non-woven fabrics, the elastic spandex silk covers the leg circumference area by 20%, the gram weight of the elastic non-woven fabrics is 50gsm, the elastic non-woven fabrics are 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, the mass fraction of the upper polypropylene layer and the bottom polypropylene layer is 20%, the mass fraction of the elastomer is 350%, the elastic non-woven fabrics are obtained by fixed bonding through a hot roller, and the rolling point area fraction is 10-15%;
d. splicing treatment: c, the abdomen-hip circumference part prepared in the step b is in on-line transmission splicing to the waist-abdomen circumference part prepared in the step a, the leg circumference part prepared in the step c is in on-line transmission splicing to the waist-abdomen circumference part spliced with the abdomen-hip circumference part, when the abdomen-hip circumference part and the waist-abdomen circumference part are spliced, an overlapping area of 9mm is formed at the splicing position in the longitudinal direction, and an overlapping area of more than 10mm is formed at the splicing position in the longitudinal direction of the abdomen-hip circumference part and the leg circumference part; the splicing treatment is fixed by ultrasonic wave compounding, the shape of an ultrasonic welding point is oval during ultrasonic wave compounding, and the area of a welding area accounts for 40% of a splicing overlapping area;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface, wherein the length of the B surface of the absorber in the longitudinal direction is greater than that of the A surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4) on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
10) Folding and compounding small package films on the product processed in the step 9) to obtain a small package product.
Referring to fig. 5, the multi-section combined top-loading pant-type sanitary napkin of the present embodiment has the same structure of the front and back panels of the outer garment layer, and is formed by splicing the waist and abdomen-waist part 4 ', the abdomen-hip part 5' and the leg-surrounding part 7.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A preparation method of a multi-section combined type pants-type sanitary towel is characterized by comprising the following preparation steps:
1) preparation of the front piece of the coat layer:
a. preparing the waist and abdomen surrounding part: the first nonwoven fabric is uncoiled on line and continuously conveyed, waist and abdomen elastic materials are compounded on the surface of the first nonwoven fabric, and then the first nonwoven fabric is folded and covered on the elastic materials;
b. preparing the abdomen-hip circumference and leg circumference parts: the second non-woven fabric is uncoiled on line and continuously conveyed, the elastic materials of the abdominal, buttock and leg circumferences are compounded on the surface of the second non-woven fabric, and then a third non-woven fabric is compounded on the elastic materials on line to obtain the abdominal, buttock and leg circumference parts with the abdominal, buttock and leg circumference areas;
c. splicing treatment: c, the abdomen-hip circumference part and the leg circumference part which are prepared in the step b are in on-line transmission splicing to the waist-abdomen circumference part which is prepared in the step a, wherein during splicing, the abdomen-hip circumference area and the waist-abdomen circumference part are spliced, and the splicing position has an overlapping area which is larger than 3mm in the longitudinal direction;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4 on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
2. The method of making a multi-segment combination pant-type sanitary napkin of claim 1, wherein: and (3) folding and compounding small envelopes on the product treated in the step (9).
3. The method of making a multi-segment combination pant-type sanitary napkin of claim 1, wherein: the length of the B face of the absorber in the longitudinal direction is greater than that of the A face.
4. The method of making a multi-segment combination pant-type sanitary napkin of claim 1, wherein: the splicing treatment is realized by gluing and hot pressing.
5. The method of making a multi-segment combination pant-type sanitary napkin of claim 1, wherein: the splicing treatment is realized by ultrasonic welding.
6. A preparation method of a multi-section combined type pants-type sanitary towel is characterized by comprising the following preparation steps:
1) preparation of the front piece of the coat layer:
a. preparing the waist and abdomen surrounding part: the first nonwoven fabric is uncoiled on line and continuously conveyed, waist and abdomen elastic materials are compounded on the surface of the first nonwoven fabric, and then the first nonwoven fabric is folded and covered on the elastic materials;
b. preparation of the abdomen-hip circumference part: the second non-woven fabric is uncoiled on line and continuously transmitted, the abdominal and buttock circumference elastic material is compounded on the surface of the second non-woven fabric, and then a third non-woven fabric is compounded on the elastic material on line to obtain an abdominal and buttock circumference part;
c. preparing the leg surrounding parts: the fourth non-woven fabric is uncoiled on line and continuously transmitted, the leg circumference elastic material is compounded on the surface of the fourth non-woven fabric, and then a layer of fifth non-woven fabric is compounded on the elastic material on line to obtain a leg circumference part;
d. splicing treatment: c, the abdomen-hip circumference part prepared in the step b is in on-line transmission splicing to the waist-abdomen circumference part prepared in the step a, the leg circumference part prepared in the step c is in on-line transmission splicing to the waist-abdomen circumference part spliced with the abdomen-hip circumference part, when the abdomen-hip circumference part and the waist-abdomen circumference part are spliced, an overlapping area larger than 3mm is formed at the splicing position in the longitudinal direction, and an overlapping area larger than 3mm is formed at the splicing position in the longitudinal direction of the abdomen-hip circumference part and the leg circumference part;
2) preparation of the absorber: the liquid-permeable surface layer, the absorption core and the liquid-impermeable bottom layer are transmitted and compounded into a whole on line to obtain an absorber which is transmitted continuously, and then the absorber is cut into single articles and is transmitted to the next procedure on line by rotating 90 degrees;
3) folding of the absorbent body: defining the absorber to have a longitudinal direction along the length direction and a transverse direction along the width direction, and reversely folding the absorber processed in the step 2) along the longitudinal direction to obtain the absorber with an A surface and a B surface;
4) compounding the absorber with the front piece of the coat layer: the front piece of the coat layer is compounded on the A surface of the absorber in an online manner;
5) preparation of the garment layer backsheet: the preparation method is the same as that of the front piece of the coat layer;
6) composite garment layer back sheet: compounding the coat layer back sheet prepared in the step 5) to the B surface of the absorber treated in the step 4) on line;
7) sealing and pressing the crotch part: defining an article consisting of a garment layer front piece, a garment layer rear piece and an absorber to be provided with a crotch area, and sealing and pressing the garment layer front piece and the garment layer rear piece which are close to the absorber in the crotch area to form two leg openings with trouser legs;
8) and (3) sealing and pressing the transverse two sides of the front piece and the rear piece of the coat layer: sealing and pressing the two transverse sides of the front piece and the rear piece of the coat layer;
9) slitting: cutting the articles processed in the step 8) along the sealing positions at the two transverse sides to obtain single articles, and cutting the continuously conveyed single articles along the sealing positions of the crotch.
7. The method of making a multi-segment combination pant-type sanitary napkin of claim 6, wherein: and (3) folding and compounding small envelopes on the product treated in the step (9).
8. The method of making a multi-segment combination pant-type sanitary napkin of claim 7, wherein: the length of the B face of the absorber in the longitudinal direction is greater than that of the A face.
9. The method of making a multi-segment combination pant-type sanitary napkin of claim 7, wherein: the splicing treatment is realized by gluing and hot pressing.
10. The method of making a multi-segment combination pant-type sanitary napkin of claim 7, wherein: the splicing treatment is realized by ultrasonic welding.
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| CN202110871385.9A CN113616423A (en) | 2021-07-30 | 2021-07-30 | Multi-section combined type pants-type sanitary towel and preparation method thereof |
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| CN114376801A (en) * | 2022-02-24 | 2022-04-22 | 福建恒安集团有限公司 | Three-dimensional pants-type sanitary napkin containing crotch extension sheet and preparation method thereof |
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