CN110946710A

CN110946710A - A kind of disposable trousers sanitary product

Info

Publication number: CN110946710A
Application number: CN201911165336.2A
Authority: CN
Inventors: 黄翠玉; 杨鸿勃; 许自淡
Original assignee: Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd; Hengan China Hygiene Products Co Ltd
Current assignee: Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd; Hengan China Hygiene Products Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-04-03
Anticipated expiration: 2039-11-25
Also published as: MY199175A; WO2021104182A1; CN110946710B; PH12022551276A1

Abstract

The invention relates to the field of sanitary products, and provides a disposable pants-type sanitary product, which solves the problems of poor flexibility, uneven elastic distribution and feeling of strangeness in use of a sanitary product clothes layer in the prior art, and comprises an outer clothes layer and an absorber arranged in the outer clothes layer, wherein the outer clothes layer is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, the outer clothes layer consists of a front waist abdominal circumference elastic sheet, a crotch inelastic sheet and a rear waist and hip circumference elastic sheet which are sequentially connected along the longitudinal direction, the front waist abdominal circumference elastic sheet and the rear waist and hip circumference elastic sheet are both formed by compounding elastic non-woven fabrics and spun-bonded non-woven fabrics or the elastic non-woven fabrics and hot air non-woven fabrics, the transverse two sides of the front waist abdominal circumference elastic sheet and the rear waist and hip circumference elastic sheet are fixedly connected to form a structure with a waist opening and two leg openings, and the spun-bonded non, the longitudinal length of the wrapping and folding area is 20-50mm, and elastic materials are arranged in the wrapping and folding area.

Description

Disposable pants-type sanitary product

Technical Field

The invention relates to the field of sanitary products, in particular to a disposable pants-type sanitary product.

Background

A disposable pants-type sanitary product generally comprises an outer clothing layer and an absorber arranged in the outer clothing layer, wherein the outer clothing layer generally comprises a front clothing layer and a rear clothing layer, one end of the absorber is fixedly connected with the front clothing layer, the other end of the absorber is fixedly connected with the rear clothing layer, and the two transverse sides of the front and rear clothing layers are fixedly welded to form a closed structure with a waist opening and a leg opening. The common two kinds of structures that have on front and back clothing layer, one kind is a slice formula structure, another kind is two slice formula structures, the clothing layer of these two kinds of structures all comprises two-layer non-woven fabrics composite rubber band usually, this type clothing layer, only there is the regional elasticity of distribution rubber band, rather than whole clothing layer all has elasticity, whole elastic distribution is not enough even, and adopt the structure of a large amount of distribution rubber bands, the user can produce the sensation of "lei", the holistic compliance in clothing layer is also comparatively not good.

Chinese patent No. 201721925567.5 discloses a pull-up pants, comprising a diaper body having a front waistline portion corresponding to the front waist of the human body, a rear waistline portion corresponding to the rear waist of the human body, a front crotch portion corresponding to the front crotch of the human body, and a rear crotch portion corresponding to the rear crotch of the human body, and elastic waistlines respectively provided between the front waistline portion and the rear waistline portion, characterized in that: the rigid coupling has the middle part linkage segment of preventing the piece of tightening in back waistline portion, prevent that the piece of tightening in contains the linkage segment at middle part and locates the buffer segment at linkage segment both ends, the buffer segment covers in elastic waistline top, just the length of buffer segment is more than 3/2 of elastic waistline length, the width of buffer segment is greater than elastic waistline's width, and this product is through increasing the piece of tightening in the setting, and the buffer segment of preventing the piece of tightening in the middle part just locates between elastic waistline and the tender skin of baby to the area is greater than elastic waistline. In the wearing process, the adult manually prevents the dull with the piece trowelling back, and elastic waistline directly presses on the buffer segment of preventing the piece of tightening, plays fine cushioning effect, prevents to appear obvious red mark of tightening on the tender and lovely skin of baby, and this product needs the special of adult to go the dull and peaceful piece of preventing of this product when dressing, if carelessly do not prevent the dull with the piece trowelling, the baby can appear in the waistline region and feel foreign matter when using, uses more uncomfortable.

Disclosure of Invention

Therefore, in view of the above, the present invention provides a disposable pants-type sanitary article, which solves the problems of poor softness, uneven elasticity distribution and strangeness in use of the garment layer of the sanitary article in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme: a disposable pants-type sanitary product comprises a coat layer and an absorber arranged in the coat layer, wherein the coat layer is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, the coat layer consists of a front waist abdominal-surrounding elastic sheet, a crotch inelastic sheet and a back waist-hip-surrounding elastic sheet which are sequentially connected along the longitudinal direction, the front waist abdominal-surrounding elastic sheet and the back waist-hip-surrounding elastic sheet are formed by compounding an elastic non-woven fabric, a spun-bonded non-woven fabric or an elastic non-woven fabric and a hot air non-woven fabric, the transverse two sides of the front waist abdominal-surrounding elastic sheet and the back waist-hip-surrounding elastic sheet are fixedly connected to form a structure with a waist opening and two leg openings, the spun-bonded non-woven fabric or the hot air non-woven fabric is folded inwards towards the body contact side at the waist opening, the longitudinal length of the folding area is 20-50mm, and, the longitudinal length of the front waist abdominal circumference elastic piece is 15-50mm shorter than that of the back waist hip circumference elastic piece;

the absorber comprises a liquid-permeable surface layer, a flow guide layer, upper absorbent paper, middle convex absorbent paper, bottom absorbent paper and a liquid-impermeable bottom layer which are sequentially arranged from top to bottom in a laminated manner, 3 to 5 rubber bands which extend longitudinally and are arranged side by side at transverse intervals are arranged between the bottom absorbent paper and the liquid-impermeable bottom layer, the longitudinal length of each rubber band is 1/3-4/5 of the longitudinal length of the bottom absorbent paper, the transverse area of the rubber bands is 1/3-4/5 of the transverse width of the bottom absorbent paper, the middle convex absorbent paper is arranged in the upper longitudinal half area of the absorber, a plurality of cutting lines which penetrate through the middle convex absorbent paper and the bottom absorbent paper are arranged on the upper absorbent paper, and flow guide grooves which penetrate through the flow guide layer, the upper absorbent paper, the middle convex absorbent paper and the bottom absorbent paper are arranged on the liquid-permeable surface layer, the liquid-permeable surface layer, the diversion layer, the upper absorbent paper, the middle convex absorbent paper and the bottom absorbent paper are connected through the diversion grooves;

the elastic non-woven fabric is characterized by comprising 30-80gsm of gram weight, an upper polypropylene layer, a bottom polypropylene layer and an elastomer arranged between the upper polypropylene layer and the bottom polypropylene layer, wherein the elastomer is an SBS block copolymer type elastomer or a polyolefin type elastomer, the mass percentage of the upper polypropylene layer and the bottom polypropylene layer is 10-40%, the mass percentage of the elastomer is 30-80%, the elastic non-woven fabric is obtained by fixing and bonding through a hot roller, and the rolling point area percentage is 10-15%.

The further improvement is that: the cross section of the convex absorbent paper is of an e-shaped folding structure.

The further improvement is that: the longitudinal length of the front waist abdominal circumference elastic piece is 150-230mm, and the longitudinal length of the back waist-hip circumference elastic piece is 180-280 mm.

The further improvement is that: the rubber band between the bottom layer absorbent paper and the liquid-tight bottom layer is 4.

The further improvement is that: the elastic material is rubber band.

By adopting the technical scheme, the invention has the beneficial effects that:

1. the disposable pants-type sanitary product comprises an outer clothing layer, an elastic non-woven fabric layer, a bottom polypropylene layer, an elastic body, an outer clothing layer, a cover layer and a cover layer, wherein the outer clothing layer is formed by compounding the elastic non-woven fabric and a spun-bonded non-woven fabric or the elastic non-woven fabric and a hot air non-woven fabric;

2. carrying out inner wrapping treatment on the waistline region, namely wrapping and folding the spun-bonded non-woven fabric or the hot-air non-woven fabric inwards and downwards towards the body contact side at the waist opening, and arranging an elastic material in the wrapping and folding region to enhance the elasticity of the waistline waistband region;

3. the longitudinal length of the front waist abdominal circumference elastic piece is 15-50mm shorter than that of the back waist hip circumference elastic piece, so that the front and back elastic pieces are better attached to the human body;

4. the absorber is formed by matching three layers of absorbent paper and rubber bands, wherein the three layers of absorbent paper are respectively upper layer absorbent paper, middle convex absorbent paper and bottom layer absorbent paper, the three layers of absorbent paper are subjected to strength destruction treatment, namely, the three layers of absorbent paper are cut firstly, the rigidity of the absorbent paper is destroyed, and the rubber bands arranged between the bottom layer absorbent paper and a liquid-tight bottom layer are matched, so that the generated softness is improved, and the generated close-fitting performance is also improved, 3-5 lines of rubber bands are distributed and are concentrated in 1/3-4/5 areas of the transverse width of the bottom layer absorbent paper, the longitudinal length of the rubber bands accounts for 1/3-4/5 of the lower layer absorbent paper, and the rubber bands are distributed in a more concentrated and larger area, so that the close-fitting performance is better realized;

5. the liquid-permeable surface layer, the flow guide layer, the upper absorbent paper, the middle convex absorbent paper and the bottom absorbent paper are connected through the flow guide grooves, so that absorption of the discharged liquid is accelerated, and the diffusion direction of the discharged liquid can be guided;

6. the cross section of the convex absorbent paper is of an e-shaped folding structure, so that the absorbed liquid absorption amount is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of T-T of FIG. 1;

FIG. 3 is a cross-sectional view of an absorbent body surface through the bottom of a garment article in an embodiment of the present invention;

FIG. 4 is a schematic view of a composite structure of the upper absorbent paper, the middle absorbent paper and the bottom absorbent paper according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view taken at H-H in FIG. 4;

FIG. 7 is a schematic view of an inner package structure of a spunbonded nonwoven fabric according to an embodiment of the invention;

FIG. 8 is a schematic view of the structure of an elastic nonwoven fabric according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of an activation system according to an embodiment of the present invention;

FIG. 10 is a circumferential side expanded view of a gear in an embodiment of the present invention;

FIG. 11 is a schematic view of the meshing connection structure of the gear c1 and the gear c2 according to the embodiment of the invention;

FIG. 12 is a flow chart of a method of making an embodiment of the present invention.

Detailed Description

The following detailed description will be provided for the embodiments of the present invention with reference to specific embodiments, so that how to apply the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Unless otherwise indicated, the techniques employed in the examples are conventional and well known to those skilled in the art, and the reagents and products employed are also commercially available. The source, trade name and if necessary the constituents of the reagents used are indicated at the first appearance.

Examples

Referring to fig. 1 to 11, a disposable pants-type sanitary napkin comprises an outer garment layer and an absorber disposed in the outer garment layer, wherein the outer garment layer is defined to have a longitudinal direction along the length direction and a transverse direction along the width direction, the outer garment layer is composed of a front waist abdominal-surrounding elastic sheet 1, a crotch inelastic sheet 2 and a back waist-hip surrounding elastic sheet 3 which are sequentially connected along the longitudinal direction, the front waist abdominal-surrounding elastic sheet 1 and the back waist-hip surrounding elastic sheet 3 are both formed by compounding an elastic nonwoven fabric 4 and a spun-bonded nonwoven fabric 5, the transverse two sides of the front waist abdominal-surrounding elastic sheet 1 and the back waist-hip surrounding elastic sheet 3 are fixedly connected to form a structure with a waist opening and two leg openings, the spun-bonded nonwoven fabric 5 is folded inwards and downwards at the waist opening towards the body contact side, the longitudinal length of the folded region 6 is 30mm, an elastic band 61 is disposed in the folded region 6, the longitudinal length of the front waist abdominal-surrounding elastic sheet 1 is 180mm, the longitudinal length of the back waist-hip circumference elastic piece 3 is 200mm, and the longitudinal lengths of the front waist-abdomen circumference elastic piece 1 and the back waist-hip circumference elastic piece 3 have certain difference and are more fit with the curve of a human body; the 4 grammes per square metre of elasticity non-woven fabrics is 50gsm, elasticity non-woven fabrics 4 comprises upper polypropylene layer 41, bottom polypropylene layer 43 and locates elastomer 42 between the two, and the mass fraction of upper polypropylene layer 41 accounts for and is 15%, and the mass fraction of bottom polypropylene layer 43 accounts for and is 15%, and the mass fraction of elastomer 42 accounts for and is 70%, elastomer 42 is SBS block copolymer type elastomer, and the three-layer fibre web structure of this elasticity non-woven fabrics carries out fixed bonding through the hot roll, and the nip area accounts for and is 11%, but the stability of the maximum assurance elasticity non-woven fabrics structure of existence on polypropylene layer avoids taking place the elasticity loss at in-process such as rolling, cutting, storage.

The absorber comprises a liquid-permeable surface layer 8, a diversion layer 9, an upper layer absorbent paper 10, a middle convex absorbent paper 11, a bottom layer absorbent paper 17 and a liquid-tight bottom layer 14 which are sequentially arranged from top to bottom in a laminated manner, wherein the liquid-permeable surface layer 8 consists of a hydrophilic non-woven fabric 81 and leakproof separation edges 82 arranged on the two transverse sides of the hydrophilic non-woven fabric, rubber strings 83 are arranged in the leakproof separation edges, the liquid-tight bottom layer 14 consists of a PE film, 4 rubber strings 15 which extend along the longitudinal direction and are arranged side by side along the transverse interval are arranged between the bottom layer absorbent paper 17 and the liquid-tight bottom layer 14, the longitudinal length of each rubber string 15 is 2/3 of the longitudinal length of the bottom layer absorbent paper 17, the transverse area of the 4 rubber strings is 2/3 of the transverse width of the bottom layer absorbent paper 17, the middle convex absorbent paper 11 is arranged in the upper longitudinal half area of the absorber, cutting lines 12 which penetrate through the middle convex absorbent paper 11 and the bottom layer absorbent paper 17 are uniformly arranged on the upper layer absorbent paper 10 in an interval manner, the liquid-permeable surface layer 8 is provided with a diversion trench 16 penetrating through the diversion layer 9, the upper absorbent paper 10, the middle convex absorbent paper 11 and the bottom absorbent paper 17, and the liquid-permeable surface layer 8, the diversion layer 9, the upper absorbent paper 10, the middle convex absorbent paper 11 and the bottom absorbent paper 17 are connected through the diversion trench 16; the cross section of the convex absorbent paper 11 is of an e-shaped folding structure, namely, the convex absorbent paper is formed by folding the absorbent paper inwards in the transverse direction, folding the absorbent paper inwards in the transverse direction again, and folding the absorbent paper twice in the same direction, so that the structure layer is thick relative to the upper absorbent paper 10 and the bottom absorbent paper 17.

In addition, the outer surface of the back waist-hip circumference elastic sheet of the coat layer of the product is also provided with a disposable patch 18, and the disposable patch 18 is adhered to the outer surface of the back waist-hip circumference elastic sheet by glue.

Specifically, the preparation method of the disposable pants-type sanitary product comprises the following steps:

comprising the steps of preparing a garment layer, preparing an absorbent body, fixing the absorbent body on the garment layer, welding the absorbent body into a trouser-shaped structure and cutting the trouser-shaped structure into individual products, wherein the step of preparing the garment layer comprises the following steps:

a. preparing an elastic nonwoven comprising:

a1, adding a layer of elastomer on the polypropylene layer;

a2, adding a polypropylene layer on the elastomer obtained in the step a1, and fixedly connecting the polypropylene layer and the elastomer into a whole through hot rolling to obtain an elastic non-woven fabric with a three-layer fiber net layer structure;

the elastic non-woven fabric has the gram weight of 50gsm, is manufactured by adopting a spun-bonded non-woven fabric process and has a three-layer structure: PP layer + elastomer + PP layer. The elastomer is SBS elastomer. The PP layer accounts for 30% in mass fraction, the elastic layer accounts for 70% in mass fraction, and the three layers of fiber nets are finally fixed and bonded through a hot roller. The roll point area accounts for 11 percent.

b. B, sending the elastic non-woven fabric prepared in the step a into an activation system for activation treatment;

the activation system comprises an input driving roller a, two groups of heating roller sets b, a traction driving roller e, an activation gear c and an output driving roller d, the input driving roller a, the heating roller sets b, the traction driving roller e, the activation gear c and the output driving roller d are respectively in transmission connection with a power output end, and the activation treatment is to activate the elastic non-woven fabric sequentially through the input driving roller a, the heating roller sets b, the traction driving roller e, the activation gear c and the output driving roller d; the linear speed of the output driving roller d is 2 times of that of the input driving roller a, the linear speed of the traction driving roller e is consistent with that of the input driving roller a, each heating roller group b consists of two heating rollers, the rotating directions of the heating rollers are opposite, the front surface and the back surface of the elastic non-woven fabric are respectively contacted with the heating rollers, the heating temperature of each heating roller is 48 ℃, the included angle of the contact part of the elastic non-woven fabric and each heating roller along the circumferential direction is 180 degrees, the activation gear consists of a pair of gears, namely a c1 gear and a c2 gear, flat teeth c3 are uniformly arranged on the circumferential side surface of each gear at intervals, and the flat teeth of the pair of gears are distributed in a staggered mode during operation;

c. b, cutting the elastic non-woven fabric prepared in the step b along the longitudinal direction, and compounding the cut elastic non-woven fabric and the spun-bonded non-woven fabric into a whole through hot melt adhesive, wherein the cut elastic non-woven fabric is respectively positioned at the two longitudinal sides of the spun-bonded non-woven fabric, and thus the coat layer is prepared;

the preparation of the absorber comprises the following steps:

1) preparing a liquid-permeable surface layer: compounding a layer of hydrophobic non-woven fabric on the two transverse sides of the hydrophilic non-woven fabric in an online manner;

2) preparing a flow guide layer;

3) preparing an absorbent core: preparing upper absorbent paper, preparing convex absorbent paper, preparing bottom absorbent paper, combining the upper absorbent paper, the convex absorbent paper and the bottom absorbent paper into a whole, and performing open cutting line treatment, wherein the open cutting line treatment specifically comprises the following steps: superposing the upper layer absorbent paper, the middle convex absorbent paper and the bottom layer absorbent paper together, and cutting the surface of the upper layer absorbent paper by a cutter, wherein a cutting line penetrates from the upper layer absorbent paper to the bottom layer absorbent paper;

4) preparing a rubber band: the number of the rubber bands is 4, the longitudinal length of each rubber band is 2/3 of the longitudinal length of the bottom layer absorbent paper, and the transverse area of the rubber band accounts for 2/3 of the transverse width of the bottom layer absorbent paper;

5) preparing a liquid-impermeable bottom layer: spraying glue on the bottom layer of the PE film on line to compound a layer of non-woven fabric;

6) the prepared rubber band is firstly compounded with the prepared liquid-tight bottom layer into a whole in an online manner, wherein the rubber band is arranged on the PE film, and then the prepared absorption core, the flow guide layer and the liquid-tight top layer are sequentially compounded on the PE film to prepare an absorber, and then the absorber is cut into single articles and is rotated by 90 degrees to be transmitted to the next process in an online manner;

the coat layer is also subjected to inner wrapping treatment, and the specific treatment steps are as follows: and c, after the spun-bonded non-woven fabric in the step c is compounded with the cut elastic non-woven fabric, spraying rubber bands at the positions 30mm away from the longitudinal two ends of the spun-bonded non-woven fabric, and then folding the area sprayed with the rubber bands downwards and inwards to form an inner packaging area.

In the invention, the longitudinal length of the wrapping and folding area is 20-50mm, and the longitudinal length of the front waist abdominal circumference elastic sheet is 15-50mm shorter than that of the back waist hip circumference elastic sheet; the longitudinal length of each rubber band is 1/3-4/5 of the longitudinal length of the bottom layer absorbent paper, the transverse area of the rubber band distribution accounts for 1/3-4/5 of the transverse width of the bottom layer absorbent paper, the gram weight of the elastic non-woven fabric is 30-80gsm, the included angle of the elastic non-woven fabric and each heating roller in the contact distribution along the circumferential direction is more than 120 degrees, and the purpose of the invention can be realized within the parameter range.

The pants-type sanitary article of the present invention may be a pants-type diaper, a pants-type adult diaper, or the like, in addition to the pants-type sanitary napkin described in the examples.

The front waist abdominal circumference elastic sheet and the back waist hip circumference elastic sheet can also be formed by compounding elastic non-woven fabrics and hot air non-woven fabrics.

The elastic non-woven fabric can be cut into halves before activation, then activated after cutting, and then compounded with spun-bonded non-woven fabric or hot-air non-woven fabric after activation, and a process flow chart can refer to fig. 12.

The elastic non-woven fabric is prepared and then needs to be rolled for later use and then is sent into a production line of hygienic products for use.

The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.

Claims

1. A disposable trousers-type sanitary product, comprising an outer garment layer and an absorber disposed in the outer garment layer, and defining the outer garment layer to have a longitudinal direction along the length direction and a transverse direction along the width direction, characterized in that: the The outer garment layer is composed of a front waist and abdomen elastic sheet, an inelastic sheet at the crotch and a back waist and hip elastic sheet which are sequentially connected along the longitudinal direction. Non-woven fabrics, spunbond non-woven fabrics or elastic non-woven fabrics and hot air non-woven fabrics are composited, and the lateral sides of the front waist and waist elastic sheets and the back waist and hip elastic sheets are fixedly connected to form a waist opening and two sides. The structure of each leg opening, the spunbond non-woven fabric or the hot air non-woven fabric is folded inward and downward towards the body contact side at the waist opening, and the longitudinal length of the folded area is 20-50mm. An elastic material is provided inside, and the longitudinal length of the front waist and abdomen elastic sheet is 15-50mm shorter than the longitudinal length of the back waist and hip elastic sheet;

The absorber includes a liquid-permeable surface layer, a flow-guiding layer, an upper-layer absorbent paper, a convex absorbent paper, a bottom absorbent paper and a liquid-impermeable bottom layer, which are sequentially stacked from top to bottom. Between the liquid-permeable bottom layers, there are 3 to 5 elastic bands extending longitudinally and arranged side by side at intervals along the transverse direction, and the longitudinal length of each elastic band is 1/3-4/5 of the longitudinal length of the bottom absorbent paper. The lateral area of the elastic distribution accounts for 1/3-4/5 of the lateral width of the bottom layer of absorbent paper, the convex absorbent paper is arranged in the longitudinal upper half area of the absorbent body, and the upper layer of absorbent paper is provided with a plurality of a cutting line running through the convex absorbent paper and the bottom absorbent paper, the liquid permeable surface layer is provided with a diversion groove running through the guide layer, the upper absorbent paper, the convex absorbent paper and the bottom absorbent paper, the liquid permeable surface layer The surface layer, the guide layer, the upper layer of absorbent paper, the convex absorbent paper and the bottom layer of absorbent paper are connected through the guide groove;

The elastic non-woven fabric has a gram weight of 30-80 gsm, and the elastic non-woven fabric is composed of an upper polypropylene layer, a bottom polypropylene layer and an elastomer arranged between the two, and the elastomer is SBS block copolymerization. Material-type elastomer or polyolefin-type elastomer, the mass fraction of the upper polypropylene layer and the bottom polypropylene layer is 10-40%, and the mass ratio of the elastomer is 30-80%, which is fixed by hot rollers The elastic non-woven fabric obtained by bonding has a nip area ratio of 10-15%.

2 . The disposable trousers-type sanitary product according to claim 1 , wherein the cross-section of the middle-convex absorbent paper is an E-shaped folded structure. 3 .

3. A disposable trouser-type sanitary product according to claim 1 or 2, wherein the longitudinal length of the elastic sheet for the front waist and abdomen is 150-230 mm, and the longitudinal length of the elastic sheet for the back waist and hip circumference is 150-230 mm. The length is 180-280mm.

4. A disposable trousers-type sanitary product according to claim 1 or 2, wherein the number of elastic bands between the bottom layer absorbent paper and the liquid-impermeable bottom layer is 4.

5 . The disposable trousers-type sanitary product according to claim 1 , wherein the elastic material is an elastic band. 6 .