CN114376801A - Three-dimensional pants-type sanitary napkin containing crotch extension sheet and preparation method thereof - Google Patents
Three-dimensional pants-type sanitary napkin containing crotch extension sheet and preparation method thereof Download PDFInfo
- Publication number
- CN114376801A CN114376801A CN202210172523.9A CN202210172523A CN114376801A CN 114376801 A CN114376801 A CN 114376801A CN 202210172523 A CN202210172523 A CN 202210172523A CN 114376801 A CN114376801 A CN 114376801A
- Authority
- CN
- China
- Prior art keywords
- crotch
- sheet
- piece
- line
- circumference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- A61F13/15764—Transferring, feeding or handling devices; Drives
-
- 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
- A61F13/5605—Supporting or fastening means specially adapted for sanitary napkins or the like
-
- 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
-
- 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
- A61F2013/16—Sanitary towels; Means for supporting or fastening them
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to the field of sanitary products, and provides a three-dimensional pants-type sanitary towel containing a crotch extension sheet and a preparation method thereof, which solve the problems of crotch clamping, side leakage and uncomfortable wearing of the pants-type sanitary towel in the prior art.
Description
Technical Field
The invention relates to the field of sanitary products, in particular to a three-dimensional pants-type sanitary towel containing a crotch extension sheet and a preparation method thereof.
Background
The panties type sanitary napkin for menstrual period generally comprises an absorbent layer and an outer clothing layer, wherein the absorbent layer comprises a liquid-permeable surface layer, an absorbent core and a liquid-impermeable bottom layer which are sequentially laminated from top to bottom. 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. The panties type sanitary towel has no coating on the legs and the crotch, and the straight angle panties type sanitary towel has full coating on the legs and the crotch. The panties type sanitary napkin has no extension from the crotch part to the leg part, and side leakage is likely to occur along the crotch part cut when the secretion amount is large, so the flat angle pants are one direction of the development of the panties type sanitary napkin in the aspects of leakage prevention and comfort, and meanwhile, the menstrual flat angle pants can also be worn as the safety pants of menstrual women.
The practical situation of the human body shape is that the sum of the circumference of two legs is larger than the circumference of a hip circumference larger than the circumference of a waist, the human body shape has a certain thickness, and the left leg and the right leg of the human body are not clung but have a certain crotch width between the left leg and the right leg. The flat angle pants type sanitary napkin produced by the mode of splicing the waistline region, the hip circumference region and the leg circumference region in multiple sections has the advantages that the sum of the circumferences of two legs is larger than the hip circumference and larger than the circumference of the waistline, the front and back directions of a human body are defined as a Z axis, the longitudinal direction is an X axis, the crotch of the human body has a certain body type thickness distance in the Z axis direction, and a certain crotch width distance is also arranged on a Y axis connecting the left leg and the right leg, so the design that the front piece and the back piece of the garment layer are directly sealed to form the crotch and the legs does not completely conform to the human engineering. The front and rear pieces of the crotch are directly sealed to enable the left and right legs to be directly connected, the left and right legs are opened only by one point of cut of the crotch, the opening angle is very limited, when the leg opening angle exceeds 90 degrees, the obvious pulling feeling is achieved, the requirement of 180-degree free extension in the Y-axis direction is far met, the crotch of the coat layer and the crotch of the inner absorption layer are two unconnected crotches, the front and rear pieces of the crotch are directly sealed, the menstrual period trousers do not have the extension width in the Z-axis direction in the crotch, the flat angle trousers are not easy to wear when being worn, and the trousers are not convenient to walk in a large range after being worn, so that the crotch phenomenon is avoided.
Chinese patent No. 201921189245.8 discloses a boxer-style sanitary napkin, which is the first generation of boxer-style sanitary napkins of the present applicant, comprising an outer clothing layer and an absorbent body disposed in the outer clothing layer, the coat layer is internally provided with a crotch area, the absorber at least covers the crotch area, the absorber comprises a liquid-permeable surface layer, an absorbing core and a liquid-impermeable bottom layer which are sequentially laminated from top to bottom, the absorber is defined to have a longitudinal direction extending along the length direction and a transverse direction vertical to the longitudinal direction, the garment layer having a waist opening and two leg openings, the garment layer comprising a front panel and a rear panel, the front piece and the rear piece are fixedly connected at the two transverse sides, one end of the absorber is fixed on the front piece, the other end of the absorber is fixed on the rear piece, and the top ends of the fixed connection parts of the front piece and the rear piece which are positioned at the inner sides of the two leg openings of the coat layer are 10-50mm away from the bottom end of the absorber. The applicant's first generation of boxer-style sanitary napkins described above can solve the problems of poor fit and the tendency to side leakage, but cannot solve the problem of "crotch jamming".
Disclosure of Invention
Therefore, in order to solve the problems, the invention provides a three-dimensional pants-type sanitary napkin with a crotch extension sheet and a preparation method thereof, which solve the problems that the pants-type sanitary napkin in the prior art is easy to cause crotch clamping, side leakage and uncomfortable wearing.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension piece comprises the steps of preparing an outer clothing layer, preparing the crotch extension piece, preparing an absorber, compounding the outer clothing layer, the crotch extension piece and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut in the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not in a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, and the front piece and the rear piece after the crotch cut are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
c. folding down the left and right trouser legs of the front piece and the back piece processed in the step b along the longitudinal direction, wherein the folded width is greater than 1/2 of the width of the crotch extension piece, so as to avoid the collision of the front piece and the back piece when the front piece and the back piece are simultaneously compounded with the crotch extension piece;
(2) manufacturing a crotch extension sheet;
(3) c, conveying the crotch extension sheet to the crotch cutting area of the front sheet and the rear sheet processed in the step c, and fixedly connecting the crotch extension sheet to a first crotch cutting line, a second crotch cutting line and a third crotch cutting line which are positioned on the same straight line;
(4) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(5) folding the transverse center line of the combined coat layer, the absorber and the crotch extension sheet, aligning the folding parts of the left and right crotch legs, and aligning the front part sheet and the rear part sheet of the coat layer;
(6) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
The further improvement is that: and c, the light pressing process point in the step b is a light hot pressing or light ultrasonic pressing point, and after the fixation of the light pressing process point, the composite strength of the bonding surface of the material is 2-100 gf.
The further improvement is that: in the step (3), the crotch extension sheet, the front left-turning flap and the front right-turning flap have overlapping positions in the transverse direction and the overlapping positions are at least partially bonded, and the crotch extension sheet, the rear left-turning flap and the rear right-turning flap have overlapping positions in the transverse direction and the overlapping positions are at least partially bonded.
The further improvement is that: the front piece is formed by sequentially connecting a front waist abdominal circumference, a front abdomen hip circumference and a front leg circumference in the longitudinal direction respectively, and the rear piece is formed by sequentially connecting a rear waist abdominal circumference, a rear abdomen hip circumference and a rear leg circumference in the longitudinal direction respectively; the front waist abdominal circumference, the front abdomen-buttock circumference, the back waist abdominal circumference, the back abdomen-buttock circumference, the front leg circumference and the back leg circumference are respectively and independently formed, or the front leg circumference and the front abdomen-buttock circumference are integrally formed, the back leg circumference and the back abdomen-buttock circumference are integrally formed, the formed front waist abdominal circumference, the front abdomen-buttock circumference and the formed front leg circumference are spliced into a front piece on line, and the back waist abdominal circumference, the back abdomen-buttock circumference and the back leg circumference are spliced into a back piece on line.
A method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension piece comprises the steps of preparing an outer clothing layer, preparing the crotch extension piece, preparing an absorber, compounding the outer clothing layer, the crotch extension piece and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut at the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not on a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line; the front piece and the rear piece after the crotch cut are cut out are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
(2) manufacturing a crotch extension sheet;
(3) b, conveying the crotch extension sheet to the crotch cutting area of the front sheet processed in the step b, and fixedly connecting the crotch extension sheet to a first crotch cutting line, a second crotch cutting line and a third crotch cutting line which are positioned on the same straight line; fixedly connecting the rear crotch extension piece with the front left-turning flap and the front right-turning flap, wherein the overlapping part is arranged in the transverse direction and is at least partially bonded;
(4) c, conveying the rear sheet processed in the step b to the front sheet processed in the step 3 and fixed with the crotch extension sheet on line, and fixedly connecting the crotch extension sheet with a first crotch cut line, a second crotch cut line and a third crotch cut line at the crotch of the rear sheet; fixedly connecting the rear crotch extension piece with the rear left-turning flap piece and the rear right-turning flap piece, wherein the transverse direction is provided with an overlapping part, and the overlapping part is at least partially bonded; the leg surrounding areas of the front and back composite sheets have an overlap in the longitudinal direction;
(5) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(6) folding the combined coat layer, absorber and crotch extension sheet along the transverse center line, aligning the folding parts of the left and right crotch legs, and aligning the front sheet and the rear sheet of the coat layer;
(7) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
The further improvement is that: and (3) fixedly connecting the crotch extension sheet at the position of the crotch incision line through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
The further improvement is that: and (4) fixedly connecting the middle-rear part sheet and the crotch extension sheet through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
The further improvement is that: and (7) welding and fixing the two transverse sides of the coat layer through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
A method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension piece comprises the steps of preparing an outer clothing layer, preparing the crotch extension piece, preparing an absorber, compounding the outer clothing layer, the crotch extension piece and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut in the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not in a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, and the front piece and the rear piece after the crotch cut are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
(2) manufacturing a crotch extension sheet;
(3) conveying the front part sheet to the upper layer position, conveying the crotch extension sheet to the middle layer position in a three-dimensional mode, conveying the rear part sheet to the lower layer position in a three-assembly-line synchronous mode, fixedly connecting the upper end of the crotch extension sheet in the middle layer with the crotch cut line position of the front part sheet processed in the step b, and fixedly connecting the lower end of the crotch extension sheet in the middle layer with the crotch cut line position of the rear part sheet processed in the step b to obtain the continuously conveyed coat layer fixedly connected with the crotch extension sheet; at the moment, the top end of the crotch extension piece is at least partially overlapped with the front left folding piece and the front right folding piece, and the overlapped part is at least partially fixedly connected, and the bottom end of the crotch extension piece is at least partially overlapped with the rear left folding piece and the rear right folding piece, and the overlapped part is at least partially fixedly connected;
(4) folding the coat layer obtained in the step (3) upwards along the transverse direction to enable the front piece, the crotch extension piece and the rear piece to be in a flat-laid state, wherein leg surrounding areas of the folded front piece and the folded rear piece are overlapped in the longitudinal direction; the front piece, the crotch extension piece and the rear piece are adsorbed on the conveyer belt by negative pressure and conveyed;
(5) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(6) folding the combined coat layer, the absorber and the crotch extension piece in the transverse direction; and the folding parts of the left and right trouser legs of the crotch are aligned, and the front piece and the rear piece of the coat layer are aligned;
(7) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
The further improvement is that: the crotch extension sheet is a U-shaped sheet, the U-shaped sheet is made of elastic or non-elastic materials, and when the U-shaped sheet is made of elastic materials, the stretch ratio of the crotch extension sheet is 1.1-10.
The further improvement is that: the front waistline and the back waistline are both formed by compounding hot air non-woven fabrics and elastic spandex filaments or spun-bonded non-woven fabrics and elastic spandex filaments, the circumference of the unfolded front waistline and the back waistline is 500-1800mm, the number of the elastic spandex filaments is at least 2, the thickness of the elastic spandex filaments is 200-110dtex, the gaps among the elastic spandex filaments are 2-12mm, and the stretch ratio of the elastic spandex filaments is 1.5-5.5.
The further improvement is that: the front abdomen-hip circumference and the back abdomen-hip circumference are both formed by compounding elastic spandex filaments and hot air non-woven fabrics or the elastic spandex filaments and spun-bonded non-woven fabrics, after the front abdomen-hip circumference and the back abdomen-hip circumference are completely unfolded, the perimeter is 800 plus materials and 2400mm, the number of the elastic spandex filaments is at least 2, the thickness of the elastic spandex filaments is 200 plus materials and 1100dtex, the gap between the elastic spandex filaments is 2-20mm, and the stretch ratio of the elastic spandex filaments is 1.5-8.0; when the hip elastic material is elastic non-woven fabric, the stretch ratio of the elastic non-woven fabric is 1.2-4.
The further improvement is that: the front leg circumference and the rear leg circumference are respectively formed by compounding elastic non-woven fabrics, elastic spandex filaments, hot air non-woven fabrics or elastic non-woven fabrics, elastic spandex filaments and spun-bonded non-woven fabrics, after the front leg circumference and the rear leg circumference are completely unfolded, the perimeter is 1000mm, the number of the elastic spandex filaments is at least 2, the thickness of the elastic spandex filaments is 200-110dtex, the gap between the elastic spandex filaments is 2-25mm, and the stretch ratio of the elastic spandex filaments is 1.5-6.5; the stretch ratio of the elastic non-woven fabric is 1.2-5.5; the area of the whole leg circumference area covered by the elastic non-woven fabric or covered by the spandex silk is more than 10 percent.
The further improvement is that: the length of the crotch extension sheet is more than or equal to 20mm, and the width of the crotch extension sheet is more than or equal to 10 mm. When the consumer wears the product, the three-dimensional pant-type sanitary napkin has an extension width of > 10mm in the Z-axis direction, left and right crotch widths of > 5mm in the Y-axis direction (the widths of the left and right legs in the Y-axis direction connected by the extension sheet), and leg heights of > 5mm in the X-axis direction (the distance from the lowest point of the crotch to the lowest point of the legs).
By adopting the technical scheme, the invention has the beneficial effects that:
1. the crotch extension piece is additionally arranged in the crotch area, and the left leg periphery, the absorption layer and the right leg periphery are sequentially connected by the extension piece from left to right to form a free crotch extension area.
2. The crotch extension piece of the invention is connected with the left trouser leg and the right trouser leg and is also connected with the absorber, so the trouser sanitary towel completely accords with the human engineering, two crotch can not be generated, the wearing is more comfortable, and the action is more free.
3. After the trouser sanitary towel is completely unfolded, when the coat layer is completely unfolded, the sum of the circumferences of the two legs is larger than the sum of the circumference of the hip circumference and the circumference of the waist circumference, so that the trouser sanitary towel is more comfortable to wear.
4. The crotch extension sheet material can be customized to be elastic in all directions, can be elastic in a certain direction, and can not be elastic, so that the crotch extension sheet material meets the requirements of different people, and has a wide application range.
5. The pants-type sanitary towel can be produced by a full-automatic assembly line, has high production speed and low finished product cost, is very suitable for menstrual women and incontinent adults, and can also be used as baby diapers or adult safety pants.
Drawings
FIG. 1 is a schematic structural diagram of a product according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a manufacturing process according to a first embodiment of the present invention;
FIG. 3 is a flow chart of a second embodiment of the present invention;
FIG. 4 is a flow chart of a third embodiment of the present invention;
FIG. 5 is an enlarged schematic view at A in FIG. 2;
fig. 6 is a back view of fig. 2B.
Detailed Description
Example one
Referring to fig. 1, 2, 5 and 6, a method for preparing a three-dimensional medium-size flat-angle pants-type sanitary napkin with a crotch extension sheet comprises the steps of preparing an outer clothing layer, preparing a crotch extension sheet 1, preparing an absorber 2, combining the outer clothing layer, the crotch extension sheet 1 and the absorber 2 into a whole and cutting into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a coat layer to have a longitudinal direction along the length direction and a transverse direction along the width direction, wherein the coat layer consists of a front waist abdominal circumference a, a front waist-hip circumference b, a front leg circumference c, a rear leg circumference e, a rear waist-hip circumference f and a rear waist abdominal circumference g which are sequentially connected along the longitudinal direction, the front waist abdominal circumference a, the front waist-hip circumference b and the front leg circumference c are sequentially connected along the longitudinal direction to form a front piece, and the rear waist abdominal circumference g, the rear waist-hip circumference f and the rear leg circumference e are sequentially connected along the longitudinal direction to form a rear piece;
A. the front waist abdominal circumference and the rear waist abdominal circumference are respectively and independently formed, the front leg circumference and the front abdominal-buttock circumference are integrally formed, the rear leg circumference and the rear abdominal-buttock circumference are integrally formed, the formed front waist abdominal circumference, the front abdominal-buttock circumference and the front leg circumference are spliced into a front piece on line, and the rear waist abdominal circumference, the rear abdominal-buttock circumference and the rear leg circumference are spliced into a rear piece on line;
B. cutting a crotch cut at the middle of a crotch of the front piece and the back piece, wherein the crotch cut has three crotch cut lines which form angles and are not on the same straight line, namely a first crotch cut line 11, a second crotch cut line 12 and a third crotch cut line 13, the first crotch cut line 11 is vertical to the second crotch cut line 12, and the third crotch cut line 13 is vertical to the second crotch cut line 12; the front piece and the rear piece after the crotch cut are cut out are provided with a left trouser leg and a right trouser leg;
C. the left trouser legs and the right trouser legs of the front piece and the rear piece are respectively turned upwards, so that the first crotch cut line, the second crotch cut line and the third crotch cut line are positioned on the same straight line after the turning, the left trouser legs and the right trouser legs of the front piece are provided with a first folding line 14 and a second folding line 15, the included angle between the first folding line 14 and the first crotch cut line 11 is 45 degrees, and the included angle between the second folding line 15 and the third crotch cut line 13 is 45 degrees; the folded parts are tightly attached to the leg girth area through negative pressure adsorption and slight hot pressing fixation, and the composite strength of the bonding surface of the material is 50gf after the slight hot pressing fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned; the slight hot pressing is used for assisting the temporary fixation of the edge of the folded part, and when the trouser legs are turned back, the slight hot pressing points can be damaged without affecting the completeness and flatness of the material; an auxiliary clamping roller for realizing rapid and smooth turnover is arranged on the turnover station; the auxiliary nip roller is a conventional device and is not described in detail herein;
D. folding the left and right trouser legs of the front piece and the rear piece processed in the step C downwards, wherein the folded width is greater than 1/2 of the width of the crotch extension piece, so as to avoid the front piece and the rear piece from colliding with each other when the front piece and the rear piece are simultaneously compounded with the crotch extension piece; after the folding, a third folding line 16 and a fourth folding line 17 are formed in the longitudinal direction, wherein the third folding line 16 is distributed on the front piece, and the fourth folding line 17 is distributed on the rear piece;
(2) manufacturing a crotch extension sheet; the transverse size of the crotch extension piece is the same as that of the crotch opening folded in the step D, namely in the transverse direction, the top of the crotch extension piece is flush with the front left folding piece and the front right folding piece, and the bottom of the crotch extension piece is flush with the rear left folding piece and the rear right folding piece; in the longitudinal direction, the size of the crotch extension sheet is the distance from the top of the crotch opening of the front sheet to the top of the crotch opening of the rear sheet (calculated in a state that the front sheet and the rear sheet are unfolded and do not overlap);
(3) conveying the crotch extension sheet to the crotch cut area of the front sheet and the rear sheet processed in the step D, fixedly connecting the crotch extension sheet to a first crotch cut line, a second crotch cut line and a third crotch cut line which are positioned on the same straight line, wherein the crotch extension sheet, the front left-turning flap sheet and the front right-turning flap sheet have an overlapping part in the transverse direction and a linear bonding part at the overlapping part, in the embodiment, the overlapping part covers the whole area of the front left-turning flap sheet and the front right-turning flap sheet, the crotch extension sheet, the rear left-turning flap sheet and the rear right-turning flap sheet have an overlapping part in the transverse direction and a linear bonding part at the overlapping part, and similarly, the overlapping part covers the whole area of the rear left-turning flap sheet and the rear right-turning flap sheet; specifically, the bonding position is fixedly bonded through hot melt adhesive;
(4) manufacturing an absorbent body 2, and fixedly connecting the bottom glue of the absorbent body 2 to an outer clothing layer in an on-line transmission manner, wherein the absorbent body 2 spans a front piece, a crotch extension piece and a rear piece in the longitudinal direction;
(5) folding the combined coat layer, the absorber 2 and the crotch extension piece 1 along the transverse center line, aligning the folding parts of the left and right crotch legs, and aligning the front piece and the rear piece of the coat layer;
(6) the lateral sides of the garment layer are fixed by ultrasonic welding and then cut into individual articles.
The front piece and the rear piece are respectively formed by compounding a first non-woven fabric, an elastic material and a second non-woven fabric from top to bottom.
In the embodiment, the sanitary towel is required to be adsorbed by negative pressure in the preparation process to avoid retraction, and the conveying mechanism is provided with the through holes for negative pressure adsorption.
The unfolded width of the waist and abdomen area of the boxer shorts type sanitary towel is 600mm, the unfolded width of the abdomen and buttocks area is 700mm, the completely unfolded length and width of the crotch extension piece material is 235mm x 90mm, the unfolded width of a single leg in the leg area is 350mm, the elastic material in the waist and abdomen area is spandex silk with the fineness of 800D, and the material stretch ratio is 2.5; the elastic material of the abdomen-hip circumference area is elastic non-woven fabric, and the material stretch ratio is 2.7; the elastic material of the leg surrounding area is elastic non-woven fabric and elastic spandex yarn, the stretch ratio of the spandex yarn is 3.5, and the stretch ratio of the elastic non-woven fabric is 2.0; the crotch extension sheet was an elastic nonwoven fabric having elasticity in the transverse direction, and the elastic stretch ratio was 3.0. When a consumer wears the product, the three-dimensional pants-type sanitary napkin has an extension width of 80-100mm in the Z-axis direction, a left-right crotch width of more than or equal to 12mm in the Y-axis direction, and a leg height of more than or equal to 50mm in the X-axis direction. Above design has been solved crotch portion card crotch, and the waist is too tightened the too loose problem of shank.
Example two
Referring to fig. 3, a method for preparing a three-dimensional panty type sanitary napkin including a crotch extension sheet, comprising the steps of preparing an outer clothing layer, preparing a crotch extension sheet 1 ', preparing an absorbent body 2', and combining the outer clothing layer, the crotch extension sheet and the absorbent body into a whole and then cutting into individual articles, wherein the method comprises the following specific steps: (1) manufacturing a coat layer: defining a coat layer to have a longitudinal direction along the length direction and a transverse direction along the width direction, wherein the coat layer consists of a front waist abdominal circumference, a front abdomen hip circumference, a front leg circumference, a crotch extension piece, a rear leg circumference, a rear abdomen hip circumference and a rear waist abdominal circumference which are sequentially connected along the longitudinal direction, the front waist abdominal circumference, the front abdomen hip circumference and the front leg circumference are sequentially connected along the longitudinal direction to form a front piece, and the rear waist abdominal circumference, the rear abdomen hip circumference and the rear leg circumference are sequentially connected along the longitudinal direction to form a rear piece;
a. the front waist abdominal circumference, the front abdomen buttock circumference, the rear waist abdominal circumference and the rear abdomen buttock circumference are respectively and independently formed, the front leg circumference and the rear leg circumference are respectively and independently formed, or the front leg circumference and the front abdomen buttock circumference are integrally formed, the rear leg circumference and the rear abdomen buttock circumference are integrally formed, the formed front waist abdominal circumference, the front abdomen buttock circumference and the front leg circumference are spliced into a front piece on line, and the rear waist abdominal circumference, the rear abdomen buttock circumference and the rear leg circumference are spliced into a rear piece on line;
b. cutting a crotch cut at the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not on the same straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, the first crotch cut line is vertical to the second crotch cut line, and the third crotch cut line is vertical to the second crotch cut line; the front piece and the rear piece after the crotch cut are cut out are provided with a left trouser leg and a right trouser leg;
c. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cutting line, the second crotch cutting line and the third crotch cutting line which are turned over to be positioned on the same straight line, enabling the turned parts to be tightly attached to leg surrounding areas through negative pressure adsorption and slight hot pressing fixation, and enabling the composite strength of a bonding surface of a material to be 100gf after slight hot pressing fixation, wherein 1gf is 0.01N;
(2) manufacturing a crotch extension sheet 1';
(3) c, conveying the crotch extension sheet 1' to the crotch cutting area after the front sheet processed in the step c is folded, and fixedly connecting the crotch extension sheet to a first crotch cutting line, a second crotch cutting line and a third crotch cutting line which are positioned on the same straight line; the crotch extension sheet 1' is fixedly connected to the position of a crotch cut line through hot melt adhesive; fixedly connecting the rear crotch extension piece with the front left-turning flap and the front right-turning flap, wherein the overlapping part is arranged in the transverse direction and is at least partially bonded;
(4) c, conveying the pre-folded rear piece processed in the step c to the front piece fixed with the crotch extension piece processed in the step 3 on line, and fixedly connecting the rear piece and the crotch extension piece at the position of the crotch cut line through hot melt adhesive; specifically, the crotch extension sheet is fixedly connected with a first crotch cut line, a second crotch cut line and a third crotch cut line at the crotch of the rear sheet; the fixed connection rear crotch extension piece, the rear left-turning folding piece and the rear right-turning folding piece are provided with an overlapping part in the transverse direction, and the overlapping part is partially bonded; the leg surrounding areas of the front and back composite sheets have an overlap in the longitudinal direction;
(5) manufacturing an absorber, wherein the bottom layer glue of the absorber is applied to the coat layer on line and is fixedly connected with the coat layer, and the absorber spans the front piece, the crotch extension piece and the rear piece in the longitudinal direction;
(6) folding the combined coat layer, absorber and crotch extension sheet along the transverse center line, aligning the folding parts of the left and right crotch legs, and aligning the front sheet and the rear sheet of the coat layer;
(7) the lateral sides of the garment layer are fixed by ultrasonic welding and then cut into individual articles.
The unfolding width of the waist and abdomen area of the menstrual sanitary napkin is 600mm, the unfolding width of the abdomen and buttocks area is 700mm, the fully unfolded length and width of the crotch extension sheet material is 235mm x 90mm, the unfolding width of a single leg in the leg area is 350mm, the elastic material in the waist and abdomen area is spandex silk with the fineness of 800D, and the material stretch ratio is 2.5; the elastic material of the abdomen-hip circumference area is elastic non-woven fabric, and the material stretch ratio is 2.7; the elastic material of the leg surrounding area is elastic non-woven fabric and elastic spandex yarn, the stretch ratio of the spandex yarn is 2, and the stretch ratio of the elastic non-woven fabric is 1.9; the crotch extension sheet is an elastic nonwoven fabric having elasticity in the transverse direction, and the elastic stretch ratio is 2.0. When a consumer wears the product, the three-dimensional pants-type sanitary towel has an extension width of 80-100mm in the Z-axis direction, a left-right crotch width of more than or equal to 8mm in the Y-axis direction, and a leg height of more than or equal to 45mm in the X-axis direction. Above design has been solved crotch portion card crotch, and the waist is too tightened the too loose problem of shank.
EXAMPLE III
Referring to fig. 4, a method for preparing a three-dimensional pant-type sanitary napkin including a crotch extension sheet, comprising the steps of preparing an outer garment layer, preparing the crotch extension sheet, preparing an absorbent, and combining the outer garment layer, the crotch extension sheet, and the absorbent into a whole and then cutting into individual articles, the method comprising the specific steps of: (1) manufacturing a coat layer: defining a coat layer to have a longitudinal direction along the length direction and a transverse direction along the width direction, wherein the coat layer consists of a front waist abdominal circumference, a front abdomen hip circumference, a front leg circumference, a crotch extension piece, a rear leg circumference, a rear abdomen hip circumference and a rear waist abdominal circumference which are sequentially connected along the longitudinal direction, the front waist abdominal circumference, the front abdomen hip circumference and the front leg circumference are sequentially connected along the longitudinal direction to form a front piece, and the rear waist abdominal circumference, the rear abdomen hip circumference and the rear leg circumference are sequentially connected along the longitudinal direction to form a rear piece;
a. the front waist abdominal circumference, the front abdomen buttock circumference, the rear waist abdominal circumference and the rear abdomen buttock circumference are respectively and independently formed, the front leg circumference and the rear leg circumference are respectively and independently formed, or the front leg circumference and the front abdomen buttock circumference are integrally formed, the rear leg circumference and the rear abdomen buttock circumference are integrally formed, the formed front waist abdominal circumference, the front abdomen buttock circumference and the front leg circumference are spliced into a front piece on line, and the rear waist abdominal circumference, the rear abdomen buttock circumference and the rear leg circumference are spliced into a rear piece on line;
b. cutting a crotch cut in the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not in a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, and the front piece and the rear piece after the crotch cut are provided with a left trouser leg and a right trouser leg;
c. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after the front piece and the rear piece are turned over, enabling the turned parts to be tightly attached to leg surrounding areas through negative pressure adsorption and mild ultrasonic pressure point fixation, and enabling the composite strength of the bonding surfaces of the materials to be 80gf after the parts are fixed through light pressure ultrasonic pressure points; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
(2) manufacturing a crotch extension sheet; the crotch extension piece is a U-shaped piece, the U-shaped piece is made of elastic materials, and the U-shaped piece comprises an upper extension piece 3, a middle extension piece 4 and a lower extension piece 5;
(3) the front part is conveyed to the upper layer, the crotch extension piece is conveyed to the middle layer in a three-dimensional mode, the rear part is conveyed to the lower layer, the three assembly lines are used for synchronous conveying, the top end of the upper extension piece 3 of the crotch extension piece in the middle layer is fixedly connected with the front left turnover piece of the front part, the bottom end of the upper extension piece 3 is fixedly connected with the rear left turnover piece, the top end of the lower extension piece 5 is fixedly connected with the front right turnover piece, and the bottom end of the lower extension piece 5 is fixedly connected with the rear right turnover piece; obtaining a continuously conveyed outer garment layer fixedly connected with a crotch extension sheet; at the moment, the top end of the crotch extension piece is partially overlapped with the front left-turning folding piece and the front right-turning folding piece, the overlapped parts are fixedly connected through glue, the overlapped area is the whole area covered by the front left-turning folding piece, in the actual production, the size of the covered area can be adjusted according to the requirement, the overlapped area can be reduced, but at least a small part of the overlapped part is ensured, and the stable adhesion can be realized; similarly, the bottom end of the crotch extension piece, the rear left-turning folding piece and the rear right-turning folding piece are provided with overlapping parts, and the overlapping parts are fixedly connected through glue;
(4) folding the coat layer obtained in the step (3) upwards along the transverse direction to enable the front piece, the crotch extension piece and the rear piece to be in a flat-laid state, wherein leg surrounding areas of the folded front piece and the folded rear piece are overlapped in the longitudinal direction; the front piece, the crotch extension piece and the rear piece are adsorbed on the conveyer belt by negative pressure and conveyed;
(5) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(6) folding the combined coat layer, the absorber and the crotch extension piece in the transverse direction; and the folding parts of the left and right trouser legs of the crotch are aligned, and the front piece and the rear piece of the coat layer are aligned;
(7) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
The unfolding width of the waist and abdomen area of the menstrual sanitary napkin is 600mm, the unfolding width of the abdomen and buttocks area is 700mm, the fully unfolded length and width of the crotch extension sheet material is 235mm x 90mm, the unfolding width of a single leg in the leg area is 350mm, the elastic material in the waist and abdomen area is spandex silk with the fineness of 800D, and the material stretch ratio is 2.5; the elastic material of the abdomen-hip circumference area is elastic non-woven fabric, and the material stretch ratio is 2.7; the elastic material of the leg surrounding area is elastic non-woven fabric and elastic spandex yarn, the stretch ratio of the spandex yarn is 1.5, and the stretch ratio of the elastic non-woven fabric is 1.2; the crotch extension sheet is an elastic nonwoven fabric having elasticity in the transverse direction, and the elastic stretch ratio is 1.1. When a consumer wears the product, the three-dimensional pants-type sanitary napkin has an extension width of 90-110mm in the Z-axis direction, a right-and-left crotch width of more than or equal to 10mm in the Y-axis direction, and a leg height of more than or equal to 30mm in the X-axis direction. Above design has been solved crotch portion card crotch, and the waist is too tightened the too loose problem of shank.
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 method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension sheet is characterized in that: the method comprises the steps of manufacturing an outer clothing layer, manufacturing a crotch extension sheet, manufacturing an absorber, compounding the outer clothing layer, the crotch extension sheet and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut in the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not in a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, and the front piece and the rear piece after the crotch cut are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
c. folding down the left and right trouser legs of the front piece and the back piece processed in the step b along the longitudinal direction, wherein the folded width is greater than 1/2 of the width of the crotch extension piece, so as to avoid the collision of the front piece and the back piece when the front piece and the back piece are simultaneously compounded with the crotch extension piece;
(2) manufacturing a crotch extension sheet;
(3) c, conveying the crotch extension sheet to the crotch cutting area of the front sheet and the rear sheet processed in the step c, and fixedly connecting the crotch extension sheet to a first crotch cutting line, a second crotch cutting line and a third crotch cutting line which are positioned on the same straight line;
(4) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(5) folding the combined coat layer, absorber and crotch extension sheet along the transverse center line, aligning the folding parts of the left and right crotch legs, and aligning the front sheet and the rear sheet of the coat layer;
(6) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
2. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 1, wherein: and c, the light pressing process point in the step b is a light hot pressing or light ultrasonic pressing point, and after the fixation of the light pressing process point, the composite strength of the bonding surface of the material is 2-100 gf.
3. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 1, wherein: in the step (3), the crotch extension sheet, the front left-turning flap and the front right-turning flap have overlapping positions in the transverse direction and the overlapping positions are at least partially bonded, and the crotch extension sheet, the rear left-turning flap and the rear right-turning flap have overlapping positions in the transverse direction and the overlapping positions are at least partially bonded.
4. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 1, wherein: the front piece is formed by sequentially connecting a front waist abdominal circumference, a front abdomen hip circumference and a front leg circumference in the longitudinal direction respectively, and the rear piece is formed by sequentially connecting a rear waist abdominal circumference, a rear abdomen hip circumference and a rear leg circumference in the longitudinal direction respectively; the front waist abdominal circumference, the front abdomen-buttock circumference, the back waist abdominal circumference, the back abdomen-buttock circumference, the front leg circumference and the back leg circumference are respectively and independently formed, or the front leg circumference and the front abdomen-buttock circumference are integrally formed, the back leg circumference and the back abdomen-buttock circumference are integrally formed, the formed front waist abdominal circumference, the front abdomen-buttock circumference and the formed front leg circumference are spliced into a front piece on line, and the back waist abdominal circumference, the back abdomen-buttock circumference and the back leg circumference are spliced into a back piece on line.
5. A method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension sheet is characterized in that: the method comprises the steps of manufacturing an outer clothing layer, manufacturing a crotch extension sheet, manufacturing an absorber, compounding the outer clothing layer, the crotch extension sheet and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut at the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not on a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line; the front piece and the rear piece after the crotch cut are cut out are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
(2) manufacturing a crotch extension sheet;
(3) b, conveying the crotch extension sheet to the crotch cutting area of the front sheet processed in the step b, and fixedly connecting the crotch extension sheet to a first crotch cutting line, a second crotch cutting line and a third crotch cutting line which are positioned on the same straight line; fixedly connecting the rear crotch extension piece with the front left-turning flap and the front right-turning flap, wherein the overlapping part is arranged in the transverse direction and is at least partially bonded;
(4) c, conveying the rear sheet processed in the step b to the front sheet processed in the step 3 and fixed with the crotch extension sheet on line, and fixedly connecting the crotch extension sheet with a first crotch cut line, a second crotch cut line and a third crotch cut line at the crotch of the rear sheet; fixedly connecting the rear crotch extension piece with the rear left-turning flap piece and the rear right-turning flap piece, wherein the transverse direction is provided with an overlapping part, and the overlapping part is at least partially bonded; the leg surrounding areas of the front and back composite sheets have an overlap in the longitudinal direction;
(5) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(6) folding the combined coat layer, absorber and crotch extension sheet along the transverse center line, aligning the folding parts of the left and right crotch legs, and aligning the front sheet and the rear sheet of the coat layer;
(7) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
6. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 5, wherein: and (3) fixedly connecting the crotch extension sheet at the position of the crotch incision line through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
7. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 5, wherein: and (4) fixedly connecting the middle-rear part sheet and the crotch extension sheet through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
8. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 5, wherein: and (7) welding and fixing the two transverse sides of the coat layer through hot melt adhesive or mechanical hot pressing compounding or ultrasonic compounding or laser compounding.
9. A method for preparing a three-dimensional pants-type sanitary towel containing a crotch extension sheet is characterized in that: the method comprises the steps of manufacturing an outer clothing layer, manufacturing a crotch extension sheet, manufacturing an absorber, compounding the outer clothing layer, the crotch extension sheet and the absorber into a whole and cutting the whole into single articles, wherein the specific preparation steps are as follows: (1) manufacturing a coat layer: defining a garment layer having a longitudinal direction along a length direction and a transverse direction along a width direction, the garment layer consisting of a front panel and a back panel;
a. cutting a crotch cut in the middle of the crotch of the front piece and the rear piece, wherein the crotch cut is provided with three crotch cut lines which form angles and are not in a straight line, namely a first crotch cut line, a second crotch cut line and a third crotch cut line, and the front piece and the rear piece after the crotch cut are provided with a left trouser leg and a right trouser leg;
b. respectively turning over the left trouser legs and the right trouser legs of the front piece and the rear piece upwards to enable the first crotch cut line, the second crotch cut line and the third crotch cut line to be positioned on the same straight line after being turned over, and closely attaching the turned parts to leg surrounding areas through negative pressure adsorption and light pressure process point fixation; the front sheet is provided with a front left-turning folding sheet and a front right-turning folding sheet after being turned, and the rear sheet is provided with a rear left-turning folding sheet and a rear right-turning folding sheet after being turned;
(2) manufacturing a crotch extension sheet;
(3) conveying the front part sheet to the upper layer position, conveying the crotch extension sheet to the middle layer position in a three-dimensional mode, conveying the rear part sheet to the lower layer position in a three-assembly-line synchronous mode, fixedly connecting the upper end of the crotch extension sheet in the middle layer with the crotch cut line position of the front part sheet processed in the step b, and fixedly connecting the lower end of the crotch extension sheet in the middle layer with the crotch cut line position of the rear part sheet processed in the step b to obtain the continuously conveyed coat layer fixedly connected with the crotch extension sheet; at the moment, the top end of the crotch extension piece is at least partially overlapped with the front left folding piece and the front right folding piece, and the overlapped part is at least partially fixedly connected, and the bottom end of the crotch extension piece is at least partially overlapped with the rear left folding piece and the rear right folding piece, and the overlapped part is at least partially fixedly connected;
(4) folding the coat layer obtained in the step (3) upwards along the transverse direction to enable the front piece, the crotch extension piece and the rear piece to be in a flat-laid state, wherein leg surrounding areas of the folded front piece and the folded rear piece are overlapped in the longitudinal direction; the front piece, the crotch extension piece and the rear piece are adsorbed on the conveyer belt by negative pressure and conveyed;
(5) manufacturing an absorber, gluing the bottom layer of the absorber, and transmitting the absorber to the coat layer on line to be fixedly connected with the coat layer;
(6) folding the combined coat layer, the absorber and the crotch extension piece in the transverse direction; and the folding parts of the left and right trouser legs of the crotch are aligned, and the front piece and the rear piece of the coat layer are aligned;
(7) the two transverse sides of the coat layer are welded and fixed and then cut into single articles.
10. The method of making a tridimensional pant-type sanitary napkin including a crotch extension sheet according to claim 9, wherein: the crotch extension sheet is a U-shaped sheet, the U-shaped sheet is made of elastic or non-elastic materials, and when the U-shaped sheet is made of elastic materials, the stretch ratio of the crotch extension sheet is 1.1-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211201306.4A CN115414188B (en) | 2022-02-24 | 2022-02-24 | Crotch-free pants-type sanitary towel and preparation method thereof |
| CN202210172523.9A CN114376801B (en) | 2022-02-24 | 2022-02-24 | Three-dimensional pants-type sanitary towel containing crotch extension sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210172523.9A CN114376801B (en) | 2022-02-24 | 2022-02-24 | Three-dimensional pants-type sanitary towel containing crotch extension sheet and preparation method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211201306.4A Division CN115414188B (en) | 2022-02-24 | 2022-02-24 | Crotch-free pants-type sanitary towel and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114376801A true CN114376801A (en) | 2022-04-22 |
| CN114376801B CN114376801B (en) | 2023-01-10 |
Family
ID=81205712
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210172523.9A Active CN114376801B (en) | 2022-02-24 | 2022-02-24 | Three-dimensional pants-type sanitary towel containing crotch extension sheet and preparation method thereof |
| CN202211201306.4A Active CN115414188B (en) | 2022-02-24 | 2022-02-24 | Crotch-free pants-type sanitary towel and preparation method thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211201306.4A Active CN115414188B (en) | 2022-02-24 | 2022-02-24 | Crotch-free pants-type sanitary towel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114376801B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122568A (en) * | 1993-05-03 | 1996-05-15 | 泰蒂克斯公司 | Fixation panty brief |
| JPH10237702A (en) * | 1996-12-28 | 1998-09-08 | Kaitatsuku Kk | Trunks-type shorts |
| CN2642279Y (en) * | 2003-03-20 | 2004-09-22 | 尤妮佳股份有限公司 | Underpants for female used in menstrual period |
| JP2008073236A (en) * | 2006-09-21 | 2008-04-03 | Kao Corp | Sanitary shorts and its manufacturing method |
| JP2008307272A (en) * | 2007-06-15 | 2008-12-25 | Uni Charm Corp | Disposable pants-type diaper |
| CN101528167A (en) * | 2006-09-28 | 2009-09-09 | 成功概念公司-C4Se.K | Method for manufacturing a three dimensionally shaped article comprising hip/thigh panels and a hoop from a plus-shaped blank, and such an article |
| CN204207082U (en) * | 2014-10-24 | 2015-03-18 | 浪莎针织有限公司 | High texture pro-skin suede adds crotch panty hose |
| CN204766176U (en) * | 2015-07-04 | 2015-11-18 | 林明生 | Special panty -shape diapers of mosquito repellent baby |
| CN204812056U (en) * | 2015-06-15 | 2015-12-02 | 陈华敏 | Novel pants |
| CN208300956U (en) * | 2018-05-31 | 2019-01-01 | 浙江争好服饰有限公司 | A kind of woman style straight angle underpants |
| CN110403764A (en) * | 2019-07-26 | 2019-11-05 | 福建恒安集团有限公司 | A kind of preparation method of straight angle Pants-type sanitary napkin |
| CN210096090U (en) * | 2019-04-03 | 2020-02-21 | 黄山富田精工制造有限公司 | Absorbent article |
| CN112385924A (en) * | 2020-11-18 | 2021-02-23 | 肖永旺 | Trousers type printing method |
| CN113332044A (en) * | 2021-06-04 | 2021-09-03 | 泉州市嘉佰利卫生材料有限公司 | Preparation method of close-fitting elastic trousers type paper diaper |
| WO2021210101A1 (en) * | 2020-04-15 | 2021-10-21 | 一郎 浅田 | Underpants with crotch accommodation room |
| CN113616423A (en) * | 2021-07-30 | 2021-11-09 | 福建恒安集团有限公司 | Multi-section combined type pants-type sanitary towel and preparation method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6605071B1 (en) * | 1996-07-03 | 2003-08-12 | Vivian Gray | Toddler's disposable/reusable garment with universal disposable liner/diaper |
| JP3830418B2 (en) * | 2002-05-08 | 2006-10-04 | ユニ・チャーム株式会社 | Exterior body suitable for wearing absorbent articles |
| US20050197643A1 (en) * | 2003-02-25 | 2005-09-08 | Uni-Charm Corporation | Panty |
| JP5364515B2 (en) * | 2009-09-04 | 2013-12-11 | 花王株式会社 | Sanitary shorts |
| CN206659121U (en) * | 2017-04-20 | 2017-11-24 | 深圳市凯宇鑫电子商务有限公司 | Woman style two combined into one protective trousers |
| CN209915070U (en) * | 2018-12-26 | 2020-01-10 | 潘杰 | Pregnant woman trousers capable of avoiding tightening thigh roots |
| CN218572437U (en) * | 2022-02-24 | 2023-03-07 | 福建恒安集团有限公司 | Three-dimensional pants-type sanitary towel containing crotch extension piece |
-
2022
- 2022-02-24 CN CN202210172523.9A patent/CN114376801B/en active Active
- 2022-02-24 CN CN202211201306.4A patent/CN115414188B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122568A (en) * | 1993-05-03 | 1996-05-15 | 泰蒂克斯公司 | Fixation panty brief |
| JPH10237702A (en) * | 1996-12-28 | 1998-09-08 | Kaitatsuku Kk | Trunks-type shorts |
| CN2642279Y (en) * | 2003-03-20 | 2004-09-22 | 尤妮佳股份有限公司 | Underpants for female used in menstrual period |
| JP2008073236A (en) * | 2006-09-21 | 2008-04-03 | Kao Corp | Sanitary shorts and its manufacturing method |
| CN101528167A (en) * | 2006-09-28 | 2009-09-09 | 成功概念公司-C4Se.K | Method for manufacturing a three dimensionally shaped article comprising hip/thigh panels and a hoop from a plus-shaped blank, and such an article |
| JP2008307272A (en) * | 2007-06-15 | 2008-12-25 | Uni Charm Corp | Disposable pants-type diaper |
| CN204207082U (en) * | 2014-10-24 | 2015-03-18 | 浪莎针织有限公司 | High texture pro-skin suede adds crotch panty hose |
| CN204812056U (en) * | 2015-06-15 | 2015-12-02 | 陈华敏 | Novel pants |
| CN204766176U (en) * | 2015-07-04 | 2015-11-18 | 林明生 | Special panty -shape diapers of mosquito repellent baby |
| CN208300956U (en) * | 2018-05-31 | 2019-01-01 | 浙江争好服饰有限公司 | A kind of woman style straight angle underpants |
| CN210096090U (en) * | 2019-04-03 | 2020-02-21 | 黄山富田精工制造有限公司 | Absorbent article |
| CN110403764A (en) * | 2019-07-26 | 2019-11-05 | 福建恒安集团有限公司 | A kind of preparation method of straight angle Pants-type sanitary napkin |
| WO2021210101A1 (en) * | 2020-04-15 | 2021-10-21 | 一郎 浅田 | Underpants with crotch accommodation room |
| CN112385924A (en) * | 2020-11-18 | 2021-02-23 | 肖永旺 | Trousers type printing method |
| CN113332044A (en) * | 2021-06-04 | 2021-09-03 | 泉州市嘉佰利卫生材料有限公司 | Preparation method of close-fitting elastic trousers type paper diaper |
| CN113616423A (en) * | 2021-07-30 | 2021-11-09 | 福建恒安集团有限公司 | Multi-section combined type pants-type sanitary towel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115414188A (en) | 2022-12-02 |
| CN115414188B (en) | 2024-01-30 |
| CN114376801B (en) | 2023-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1802206B1 (en) | Boxer shorts and process of making boxer shorts from one or more webs | |
| EP1569533B2 (en) | Process to make boxer shorts having a contracted crotch region | |
| CA2364233C (en) | Disposable absorbent garment having stretchable side waist regions | |
| US6984279B2 (en) | Process to make boxer shorts with an absorbent core | |
| AU2005292621B2 (en) | Process of making boxer shorts from a web | |
| US20080287897A1 (en) | Absorbent article and method of making same | |
| US20080287898A1 (en) | Absorbent article and method of making same | |
| US20080287899A1 (en) | Absorbent article and method of making same | |
| EP1793780B2 (en) | Boxer shorts and process of making boxer shorts with expandable material | |
| MXPA05004730A (en) | Boxer-style absorbent underpant and method of making same. | |
| JP2002306534A5 (en) | ||
| GB2475572A (en) | Pants-style garment to be worn on the lower torso | |
| KR101923251B1 (en) | Process for manufacturing a package of folded absorbent articles, and package made thereby | |
| EP1865905B1 (en) | Article, such as disposable absorbent article, maintaining a concave cup-like shape during use | |
| CN113616423A (en) | Multi-section combined type pants-type sanitary towel and preparation method thereof | |
| JP2019535431A (en) | Absorbent article having a folded edge to surround an elastic element and method for manufacturing an absorbent article having a folded edge | |
| SG181606A1 (en) | Disposable wearing article | |
| US20210315745A1 (en) | Hygiene article comprising a skin protection sheet with well posistioned opening(s) | |
| CN218572437U (en) | Three-dimensional pants-type sanitary towel containing crotch extension piece | |
| CN114376801B (en) | Three-dimensional pants-type sanitary towel containing crotch extension sheet and preparation method thereof | |
| JP2014108271A (en) | Absorbent article | |
| CN219207730U (en) | Briefs type sanitary towel conforming to human engineering | |
| CN115300238B (en) | Panty type sanitary towel conforming to ergonomics and preparation method thereof | |
| CN212439075U (en) | Disposable pants-type wearing article | |
| WO2008143953A1 (en) | Absorbent article and method of making same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |