CN217987866U - Sanitary article with elastic waistline - Google Patents

Abstract

The utility model relates to a disposable hygienic articles body field especially relates to a hygienic articles of elastic waist line, is located the crotch portion region is equipped with the absorber, human side bottom complex is equipped with waterproof bottom is kept away from to the absorber, the hygienic articles body still includes elastic waist line, elastic waist line includes preceding elastic waist line and back elastic waist line, elastic waist line includes the flexure strip, the distribution is equipped with a plurality of trompils on the flexure strip, and elastic waist line aperture ratio under this stretching ratio is high, and the gas permeability is good during the use, avoids using the elastic waist line of ventilated membrane to dress telescopically, and the aperture ratio is little, leads to the not good shortcoming of air permeability to elastic waist line embeds to be the elastic membrane shrink, and preceding elastic waist line and back elastic waist line are good with human waist laminating nature effect, can not cause the too tight shortcoming of tightening to the waist, has solved the hygienic articles body that uses elastic rubber band when using and has too tightly tightened the problem that leads to the travelling comfort low with human skin laminating.

Description

Sanitary article with elastic waistline

Technical Field

The utility model relates to a disposable hygienic articles body field especially relates to an elastic waistline's hygienic articles.

Background

At present, the chinese patent application No.: CN201921837870.9 discloses a diaper with a buffer zone, which comprises a diaper body, wherein the diaper body comprises a liquid-permeable surface layer, an absorption core and a liquid-impermeable bottom layer, the absorption core comprises a first absorption body, a second absorption body and a third absorption body which are sequentially arranged along the transverse direction, the longitudinal length of the second absorption body is 30-100 mm shorter than that of the first absorption body and that of the third absorption body, the transverse width of the second absorption body is wider than that of the first absorption body and that of the third absorption body, an elastic sheet I and an elastic sheet II are respectively arranged on the lower surface of the liquid-permeable surface layer and the upper surface of the liquid-impermeable bottom layer along the longitudinal two ends of the diaper body, the sum of the distance between the lower side edge of the elastic sheet I and the lower side edge of the diaper body and the distance between the upper side edge of the elastic sheet II and the upper side edge of the diaper body is 10-30 mm, and a sanitary towel with the existing general structure is disclosed;

however, the elastic sheet of the sanitary napkin is composed of a plurality of elastic rubber strings, and the elastic rubber strings are too tightly attached to the skin of a human body when in use, so that the sanitary napkin is low in comfort.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a health supplies of elastic waistline, it has solved the health supplies body that uses the elasticity rubber band and has used the technical problem that leads to the travelling comfort low too tightly close tightening with human skin laminating when using.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a sanitary product with elastic waistline comprises a sanitary product body, wherein the sanitary product body is provided with a front waistline region, a rear waistline region and a crotch region arranged between the front waistline region and the rear waistline region;

the sanitary product body further comprises an elastic waistline, and the elastic waistline comprises a front elastic waistline which is positioned in the front waistline region and can elastically stretch and retract, and a rear elastic waistline which is positioned in the rear waistline region and can elastically stretch and retract;

elastic waist includes the interior lamella of laminating with human skin side, the outer lamella that does not contact the side with human skin and the flexure strip that has the elasticity, the flexure strip is located between outer lamella and the interior lamella, the distribution is equipped with a plurality of trompils on the flexure strip, be connected between interior lamella, flexure strip and the outer lamella.

Further, the elastic sheet is a tpu elastic film or a pp film.

Furthermore, the outer sheet layer and the inner sheet layer are non-woven fabrics with a ventilation function, and the outer sheet layer and the inner sheet layer are fixedly connected with the non-perforated areas of the elastic sheets.

Furthermore, the outer sheet layer covers the front waistline region, the rear waistline region and a part of the crotch region between the front waistline region and the rear waistline region, the absorber is arranged in the crotch region of the contact surface of the outer sheet layer and the human body in a compounding mode, the elastic sheet is stretched in advance under the magnification of 3.5-4.5 and broken through ultrasonic joints to form a plurality of openings, and therefore the outer sheet layer and the inner sheet layer are connected to the elastic sheet.

Further, the sanitary product body is provided with a longitudinal direction along the length direction of the sanitary product body and a transverse direction along the width direction of the sanitary product body, and the two longitudinal ends of the outer sheet layer are folded inwards and fixed on the surface of the absorbent body.

Furthermore, a plurality of elastic rubber bands are distributed at one ends of the front elastic waistline and the rear elastic waistline, which are far away from the absorber, and the stretching ratio value of the elastic rubber bands close to the edge of the elastic waistline is greater than that of the elastic rubber bands far away from the edge of the elastic waistline.

Furthermore, the waterproof bottom layer is provided with fenders at two sides of the transverse direction of the absorber, and the crotch elastic part is arranged on the fenders.

Further, the enclosure is including locating the basilar part on the waterproof bottom, the basilar part is to keeping away from waterproof bottom one end and extending and the fifty percent discount first folding portion of formation, first folding portion extends shape and fifty percent discount formation second folding portion to waterproof bottom one end, basilar part and second folding portion and waterproof bottom fixed connection, the second folding portion is to keeping away from waterproof bottom one end and extending formation and the fifty percent discount formation third folding portion, third folding portion is connected with second folding portion, crotch portion elastic component has first crotch portion elastic component and second crotch portion elastic component, first crotch portion elastic component is located between first folding portion and the basilar part, second crotch portion elastic component is located between second folding portion and the third folding portion.

Furthermore, a plurality of concave holes are formed in the top of the absorber, the absorber comprises a flow guide layer, an absorption layer and surface layer non-woven fabrics used for surrounding the flow guide layer and the absorption layer, a plurality of protruding parts are arranged on the surfaces of the flow guide layer and the absorption layer, the protruding parts are distributed in a staggered mode, surrounding areas are formed by surrounding the adjacent protruding parts, and the concave holes are located in the surrounding areas; the absorbent is provided with fluff pulp and water-absorbing resin, and the weight of the absorbent resin of the absorbent layer positioned in the concave hole area is larger than that of the absorbent resin far away from the concave hole area.

Further, the horizontal both sides of preceding elastic waist and back elastic waist are close to the regional edge sealing portion that is equipped with of crotch portion, be equipped with a plurality of banding solder joints on the edge sealing portion, be equipped with a plurality of waistline solder joints on preceding elastic waist and the back elastic waist, the banding solder joint density on the edge sealing portion is greater than preceding elastic waist and the waistline solder joint density on the back elastic waist.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the sanitary product body with the elastic film waistline is characterized in that the front elastic waistline is provided with the built-in elastic sheet which is a pp or tpu film, the front elastic waistline is stretched and punched to form a plurality of holes under the stretching magnification of 3-5 times, the elastic waistline of the sanitary product body stretches and expands when being worn and the holes of the elastic waistline stretch and expand, and the air permeability is good when the sanitary product body is used; and this elastic waistline aperture ratio under the tensile multiplying power is high, and the gas permeability is good during the use, avoids using the elastic waistline of ventilated membrane to dress telescopic, and the aperture ratio is little, leads to the not good shortcoming of air permeability, and elastic waistline embeds to the elastic membrane shrink, and preceding elastic waistline and back elastic waistline are good with human waist laminating nature effect, can not cause the shortcoming of tightening too tightly the waist, and the problem that leads to the travelling comfort low is tightened too tightly with human skin laminating when having solved the health supplies body use of using elastic rubber band.

2. The built-in elastic piece of the elastic waistline is a pp or a tpu film, and the elastic film made of the material has good elastic restoring force.

3. The outer sheet layer and the inner sheet layer are made of non-woven fabrics with air permeability, so that the material universality is good, and the skin-friendly effect is good; the outer sheet layer, the inner sheet layer and the elastic sheet are connected through the holes to form air holes, and the holes of the elastic film are connected with the welding parts of the outer sheet layer and the inner sheet layer to form air permeable holes, so that the air permeable film is good in air permeability during use.

4. Outer lamella, the setting of interior lamella and flexure strip, this elastic waistline is the three-layer, elastic waistline is more difficult to the fracture during use, and because the flexure strip with outer lamella and interior lamella ultrasonic joint back, form a plurality of trompils and with two-layer material joint be convenient for process from top to bottom, including the gas permeability of outer lamella and interior lamella material self, the gas permeability is good during the use, preceding elastic waistline, the horizontal both sides part of back elastic waistline carries out the joint back, three-layer material joint strength is good, when avoiding traditional flexure strip or ventilated membrane and interior intermediate layer complex, the shortcoming of tearing is separated easily between non-woven fabrics and the elastic membrane.

5. The shielding part is arranged, the shielding part can partially intercept liquid leaked from the core body in the length direction, the defect that the liquid leaks from the elastic waistline in use is avoided, and the shielding part is an inward-folded extension part of the outer sheet layer and is comfortable when being attached to a body.

6. The elastic rubber band stretching rate value that is close to elastic waistline edge is greater than the setting of the elastic rubber band stretching rate value of keeping away from elastic waistline edge, edge elastic rubber band is tighter during the use, the waist will tightly laminate, can prevent elastic waistline landing downwards and it is good with human laminating compactness, and the rubber band of keeping away from the edge is looser, because the function completion that the elastic rubber band that is close to elastic waistline edge is tight, if elasticity is unanimous, lead to wearing too tightly for a long time easily, the elastic rubber band that should keep away from elastic waistline edge is looser, take into account under the circumstances of the not landing of closely laminating with waist skin, the reduction causes the tight sense of tightening to the waist, can avoid waist edge too tight during the use.

7. The arrangement of the guard is that the guard can intercept the transverse two sides of the crotch region of the hygienic product body under the action of the elastic piece, so that the problem that the hygienic product body leaks urine easily is prevented.

8. Because the first folding part is not contacted with the second folding part, the first crotch elastic part and the second crotch elastic part are stretched when the enclosure is in use, and the second crotch elastic part drives the second folding part and the third folding part to stand to two sides of the width of the absorber; and first crotch portion elastic component will drive the basilar part and first folding portion and stand, surrounds the protection to absorbent width both sides, and this two pass crotch portion elastic component is better to health supplies body edge leakage protection nature, especially when the health supplies body is used as menstrual period trousers.

9. Due to the arrangement of the convex parts, the surface of the absorbent body forms a concave-convex plane, so that the water-guiding property is better when the absorbent is used, and the absorbent is more comfortable to contact with the skin; the setting of shrinkage pool, liquid will water conservancy diversion flow direction absorb to the water conservancy diversion way between each bellying, and the shrinkage pool is located the water conservancy diversion way between each bellying, and liquid passes through shrinkage pool flow direction absorber for liquid is absorbed by the absorber, promotes the absorption rate of absorber.

10. The arrangement of the edge sealing part ensures that the welding points of the edge sealing part are higher in density and the welding strength of the edge sealing part is high, the arc-shaped part is more attached to the crotch of a human body, so that the crotch moves frequently when the crotch-sealing cloth is worn, the density is high, edges are not easy to fall off when the crotch-sealing cloth is used, and the joint strength is good; the edge sealing welding points are circular, the circular edge sealing welding points cannot cause that the edge sealing parts of the front elastic waistline and the rear elastic waistline are hot melted too hard, so that the skin of a human body is not in contact with the edge sealing welding points, and the influence on the comfort of the skin of the human body is small under the condition that the bonding strength is kept.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first usage state of the present invention;

fig. 3 is a schematic view of a partial structure of the inner sheet layer, the elastic sheet and the outer sheet layer according to a first embodiment of the present invention;

fig. 4 isbase:Sub>A schematic sectional view of the structurebase:Sub>A-base:Sub>A according to the first embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a B-B structure according to a first embodiment of the present invention;

fig. 6 is an enlarged schematic view of the position P in fig. 1 according to an embodiment of the present invention;

fig. 7 is a schematic sectional view of a partial structure of an absorber according to a first embodiment of the present invention;

fig. 8 is an enlarged schematic structural diagram of a point a in fig. 2 according to an embodiment of the present invention;

fig. 9 is a schematic structural plan view of a second embodiment of the present invention;

fig. 10 is a schematic sectional view of a C-C partial structure according to a second embodiment of the present invention;

fig. 11 is a schematic view of a digital microscope showing a stretched state of an elastic sheet according to a first embodiment of the present invention;

fig. 12 is a linear view illustrating the bonding strength of the elastic sheet according to the first embodiment of the present invention;

fig. 13 is a linear schematic view of the welding strength of the elastic sheet according to the first embodiment of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1 to 8, the embodiment provides a hygienic product with an elastic waistline, which includes a hygienic product body 1, the hygienic product body 1 includes a front waistline region a, a rear waistline region b and a crotch region c disposed between the front waistline region a and the rear waistline region b, an absorber 2 is disposed in the crotch region c, a waterproof bottom layer 3 is disposed at a bottom end of the absorber 2 away from a human body, an elastically stretchable crotch elastic member 4 is disposed on a surface of the crotch region c contacting with a human body skin, the hygienic product body 1 further includes an elastic waistline, the elastic waistline includes a front elastic waistline 5a disposed in the front waistline region a and elastically stretchable and a rear elastic waistline 5b disposed in the rear waistline region b and elastically stretchable, the elastic waistline includes an inner sheet layer 51 attached to the human body skin, an outer sheet layer 53 not contacting with the human body skin and an elastic sheet 52 having stretchability, the elastic sheet 52 is disposed between the outer sheet layer 53 and the inner sheet 51, a plurality of openings 5c are disposed on the elastic sheet 52, and the inner sheet 51, the elastic sheet 52 and the outer sheet 53 are connected; when in production and processing, the two transverse sides of the front elastic waistline 5a and the rear elastic waistline 5b are welded, and the welded sanitary article body is in a trouser shape; the longitudinal direction L in the length direction and the transverse direction W in the width direction are shown in the drawings of the specification; the elastic waistline stretches in the transverse width direction.

The elastic sheet 52 is stretched in advance and the front elastic waist 5a is perforated by an ultrasonic welding head under the stretching magnification of 3-5 times; preferably, the elastic sheet 5a is stretched in advance, and the elastic sheet 5a is perforated at a stretch ratio of 4 to 4.5 times, and tests show that the aperture ratio of the elastic sheet at the stretch ratio is more than 45%, the aperture ratio of the elastic waist at the stretch ratio is high, the air permeability is good, and the use strength is also considered; especially, under 4.2 times, the aperture ratio can reach 64 percent; the elastic sheet is made of a tpu elastic film or a pp elastic film, the tpu or the pp elastic film is the conventional technology, the description is omitted, the tpu elastic film can be replaced by other existing elastic films with the same functions, the tpu elastic recovery performance and the pp elastic film are good, and the using effect is optimal; the punching of the elastic sheet is a touch type non-delay technology, when an ultrasonic head contacts the outer sheet layer, the elastic sheet and the inner sheet layer, the tpu/PP material can be broken by the instantaneous energy intensity requirement, meanwhile, the edge of the broken hole can be well welded with the upper outer sheet layer, the lower outer sheet layer and the inner sheet layer, and the welding intensity needs to reach a specified value. Thus the pre-stretching of the elastic material is pre-loaded in the tpu/PP elastic film.

Through the arrangement of the front elastic waistline, the elastic sheet arranged in the elastic waistline is a pp or tpu film, the front elastic waistline is stretched and punched in advance under the stretching magnification of 3-5 times to form a plurality of openings, the elastic waistline of the sanitary product body extends and unfolds when the sanitary product is worn and used, the openings of the elastic waistline also extend in a stretching manner, and the air permeability is good when the sanitary product is used; and this elastic waist percentage of opening under the stretch multiplying power is high, and the gas permeability is good during the use, avoids using the elastic waist of ventilated membrane to dress telescopic, and the percentage of opening is little, leads to the not good shortcoming of air permeability, and elastic waist embeds to be the elastic membrane shrink, and preceding elastic waist is good with back elastic waist and human waist laminating nature effect, can not cause the too tight shortcoming of tightening to the waist, has solved the health supplies body that uses elastic rubber band when using and has too tightly tightened with human skin laminating and lead to the problem that the travelling comfort is low.

The outer sheet layer 53 and the inner sheet layer 51 are made of non-woven fabrics with air permeability, and the materials are good in universality and good in skin-friendly effect; the outer sheet layer 53 and the inner sheet layer 51 are fixedly connected with the non-perforated area of the elastic sheet 52, the outer sheet layer 53 and the inner sheet layer 51 are connected with the perforations 5c of the elastic sheet 52 to form air permeable holes, and the perforated part of the elastic film is permeable to air with the welding part of the outer sheet layer and the inner sheet layer, so that the air permeability is good during use.

The outer sheet layer 53 covers the front waistline region a, the rear waistline region b and a partial crotch region c between the front waistline region a and the rear waistline region b, the absorber 2 is combined with the crotch region c of the contact surface of the outer sheet layer 53 and the human body, the elastic sheet 52 stretched in advance is broken through ultrasonic joints to form a plurality of openings 5c, and the outer sheet layer 53 and the inner sheet layer 51 are connected to the elastic sheet 52; the elastic waistline is three layers, the elastic waistline is not easy to break when in use, and because the elastic sheet is jointed with the outer sheet layer and the inner sheet layer through ultrasonic joints, a plurality of openings are formed and jointed with the upper layer material and the lower layer material so as to be convenient to process; the outer layer sheet in the shape is convenient for the elastic sheet to be compounded, and the outer layer sheet in the shape is convenient for the absorption body to be compounded.

Preferably, the transverse width and area of the outer sheet layer 53 in the crotch region c are smaller than those of the absorbent body 2 in the crotch region c, and the area covered by the outer sheet layer 53 in the rear waistline region b is larger than that of the absorbent body 2 in the crotch region c; the outer sheet layer has small coverage area on the crotch region, so that the stuffiness in the crotch region can be reduced during use; because the outer sheet layer is located the area that the regional coverage of back waistline is greater than the area that the absorber is located crotch portion, it is bigger to human buttock area of coverage, promotes this regional leak protection nature.

The sanitary product body 1 is provided with a longitudinal direction L along the length direction and a transverse direction W along the width direction, and the longitudinal two ends of the outer sheet layer 53 are folded inwards and fixed on the surface of the absorber 2; the absorbent core can be fixed on the surface of the surface layer non-woven fabric 2c, and also can be fixed on the inner sheet layer close to the absorbent body, so that the outer sheet layer can be fixed; the outer sheet layer 53 positioned on the inner side extends towards one end of the absorber 2 to form a shielding part 53a, and the extended shielding part 53a is not combined with the absorber and the inner sheet layer; the shielding part can partially intercept liquid leaking from the core body in the length direction, so that the defect that the liquid leaks from the elastic waistline in use is avoided, and the shielding part is an inward-folded extending part of the outer sheet layer and is comfortable when being attached to a body.

A plurality of elastic rubber bands 6 are distributed at one ends of the front elastic waistline 5a and the back elastic waistline 5b far away from the absorber 2, and the stretching multiple value of the elastic rubber bands 6 close to the edge of the elastic waistline is 1.5-2.5 times larger than that of the elastic rubber bands 6 far away from the edge of the elastic waistline; when in use, because the elastic sheets arranged in the elastic waistline have even elasticity, although providing good comfort, the elasticity of the edge of the elastic waistline is not enhanced, the risk of leakage from the waist caused by the gap generated in the use of people with smaller waistline size or the overturning activity of users is avoided, the elastic rubber band is added on the edge of the elastic waistline, the elastic rubber band is tightly attached to the skin of the human body when in use, the risk of leakage of liquid caused by the gap generated in the overturning activity of users can be avoided, and the stretching factor value of the elastic rubber band close to the edge of the elastic waistline is larger than that of the elastic rubber band far away from the edge of the elastic waistline, edge elasticity rubber band is tighter during the use, the waist will closely laminate, can prevent elastic waist from landing downwards and with human body laminating compactness good, and keep away from marginal rubber band more pine, because the function that the elasticity rubber band that is close to elastic waist edge is tight is accomplished, if elasticity is unanimous, lead to dressing too tightly for a long time easily, this elasticity rubber band of keeping away from elastic waist edge is looser, compromise under the circumstances of closely laminating not landing with waist skin, the reduction causes the tight sense of tightening to the waist, can avoid waist edge too tight during the use.

Preferably, 6 rubber bands are arranged on the rear elastic waistline, and the number of the rubber bands can be increased or decreased according to the size of an actual product; the first rubber band 61, the second rubber band 62, the third rubber band 63, the fourth rubber band 64, the fifth rubber band 65 and the sixth rubber band 66 are sequentially arranged in the longitudinal direction of the 6 rubber bands from top to bottom, the first rubber band is close to the edges of the two longitudinal sides of the elastic waistline of the front elastic waistline, the distance between the first rubber band and the second rubber band is 2-6 mm, the adjacent distance between the third rubber band and the second rubber band is 1-3 mm, the two rubber bands are close to each other, and the first rubber band, the second rubber band and the third rubber band are arranged to enable the elastic waistline to be good in clinging property with the waist of a human body; third rubber band and fourth rubber band spacing distance are 3 ~ 8mm, fourth rubber band is 3.5 ~ 8.5mm to fifth rubber band and fifth rubber band to sixth rubber band spacing distance, and first rubber band, the elasticity of second rubber band and third rubber band > the elasticity of fifth rubber band and sixth rubber band > fourth rubber band, or the replacement is first rubber band 61, second rubber band 62, third rubber band 63, fourth rubber band 64, spacing distance is by being close to the vertical edge of elastic waistline toward the absorber direction crescent between fifth rubber band 65 and the sixth rubber band 66, this mode of laying is inseparabler with the laminating of back waist, the leak protection nature is better.

The waterproof bottom layer 3 is arranged on two transverse sides of the absorber 2 and is provided with the guard 7, the crotch elastic part 4 is arranged on the guard 7, and the guard can intercept two transverse sides of the crotch region of the hygienic product body under the action of the elastic part, so that the problem that the hygienic product body leaks urine easily is solved.

The top of the absorber 2 is provided with a plurality of concave holes 22, the absorber 2 comprises a flow guide layer 2a, an absorption layer 2b and a surface layer non-woven fabric 2c for surrounding the flow guide layer 2a and the absorption layer 2b, the surfaces of the flow guide layer 2a and the absorption layer 2b form a plurality of convex parts 21 through negative pressure of a negative pressure roller and/or through rolling, the convex parts 21 are distributed in a staggered manner, the adjacent convex parts 21 surround to form a surrounding area, and the concave holes 22 are positioned in the surrounding area; the absorbent body 2 is provided with fluff pulp and water-absorbing resin, and the weight of the absorbing resin of the absorbing layer 2b in the area x of the concave hole 22 is larger than that of the absorbing resin far away from the concave hole.

The crotch elastic member has two crotch elastic members 4a, 4b; wherein one crotch portion elastic component 4a distributes and is being close to and protects enclose side edge part, and another way crotch portion elastic component 4b distributes in the position that is close to the absorbent, and it is flexible to use, and crotch portion elastic component is flexible when using and is expanded, and the absorbent forms the arch, and both sides are protected and are enclosed for the absorbent and surround highly increasing, and more laminate the human body, and are good to absorbent leak protection ability. This embodiment is preferably adapted for use with infant pull-ups.

As shown in fig. 7 to 8, edge seal portions 5d are disposed on two lateral sides of the front elastic waistline 5a and the rear elastic waistline 5b near the crotch region c, a plurality of edge seal welding points 5e are disposed on the edge seal portions 5d, a plurality of waistline welding points 5h are disposed on the front elastic waistline 5a and the rear elastic waistline 5b, and the density of the edge seal welding points 5e on the edge seal portions 5d is greater than the density of the waistline welding points 5h on the front elastic waistline 5a and the rear elastic waistline 5 b; the welding points of the edge sealing part are higher in density, the welding strength of the edge sealing part is high, the arc-shaped part is more attached to the crotch of a human body, so that the crotch moves frequently when the crotch-sealing cloth is worn, the density is high, the edge is not easy to be loosened when the crotch-sealing cloth is used, and the joint strength is good; the shape of the edge sealing welding points is circular, the circular edge sealing welding points cannot cause the hot melting hardness of the edge sealing parts of the front elastic waistline 5a and the back elastic waistline 5b, so that the contact discomfort with the skin of a human body is caused, and the influence on the comfort of the contact with the skin of the human body is small under the condition of keeping the joint strength.

Under the 2-time stretching magnification of the front elastic waistline and the back elastic waistline, waistline welding points on the front elastic waistline 5a and the back elastic waistline 5b are rectangular or straight strips, the stretching is continued to enable the waistline welding points to be stretched into a circular shape or an irregular shape, when the waistline welding points recover to the original shape, the waistline welding points retract into the rectangular shape or the straight strips, the front elastic waistline 5a and the back elastic waistline 5b adopting the waistline welding points have good transverse extensibility, the waistline welding points in each longitudinal row are not consistent in length, each waistline welding point comprises a plurality of first welding points 5h1 arranged at intervals and second welding points 5h2 arranged at intervals of 2-6 mm at the first welding points, 1-4 second welding points can be distributed between the first welding points, the first welding points are longitudinally distributed at intervals, the second welding points are also longitudinally distributed at intervals, the longitudinally distributed intervals are larger than the longitudinally distributed intervals of the first welding points, when the waistline welding points contract, the outer sheet layer and the inner sheet layer are gathered to form a convex or concave touch part, the length of the fold part is long, the contact space of the elastic sheet, and is in contact with the skin of the human body, and is good contact with the skin; the sizes of the first welding points and the second welding points are deviated in the actual welding process, the lengths of the first welding points and the second welding points are not uniform in the actual production process, and the first welding points and the second welding points can be adjusted according to actual production.

The elastic waist band is preferably made in the following manner: firstly, stretching the elastic sheet to a set multiplying power, compounding the inner sheet layer 51 on one side of the elastic sheet, compounding the outer sheet layer 53 on the other side surface of the elastic sheet 2, breaking the elastic sheet through ultrasonic joints to form a plurality of openings, welding the edges of the openings of the elastic sheet with the inner sheet layer 51 and the outer sheet layer well to weld the outer sheet layer and the inner sheet layer 51 on the elastic sheet,

the elastic sheet is preferably made of a tpu or PP elastic composite film, which is a conventional technology, and is not described herein, and can be replaced by other materials with the same function;

the outer sheet layer and the inner sheet layer 51 are preferably breathable non-woven fabrics, and the breathable performance is good without causing the defect of sultriness in use; the outer sheet layer and the inner sheet layer 51 are preferably made of polypropylene non-woven fabrics, the materials are high in universality and good in combination effect with the elastic sheets, and can be replaced by any existing materials.

The value of the prestretching magnification constituting the aperture ratio of the elastic waist is 3 to 5, more preferably 3.5 to 4.5, from the viewpoint of increasing the aperture ratio of the elastic waist. Further, the value of the pre-stretch magnification of the elastic waist is preferably 4 to 4.5, more preferably 4.2 or 4.1 to 4.3, in view of the above-mentioned value of the pre-stretch magnification of the elastic waist, and the aperture ratio of the elastic waist to be manufactured by the constitution is improved as compared with the aperture ratio of other stretch magnification according to the pre-stretch magnification described later. The breaking strength was measured by the following method.

The method for testing the aperture ratio of the elastic waistline comprises the following steps: stretching the prepared elastic waistline by 100% through an INSTRON material stretching tester, cutting into 25mm multiplied by 100mm, selecting one end as a starting end, peeling off 15mm in advance, firstly paving a non-woven fabric on a working table, then stretching an elastic sheet to a set stretching ratio in advance by using a stabilizer, fixing the periphery, covering the stretched elastic sheet and the stabilizer on a first layer of material, finally covering the front two layers of materials by using a non-woven fabric, performing spot welding according to a set pattern by using ultrasonic waves, and finishing the manufacturing of the tested elastic waistline to obtain a sample; after photographing with a digital microscope, for example, model OPT-12V, calculation processing is performed with graphic processing software to obtain the test results of the porosity under different stretching magnifications. Sample 1, sample 2, sample 3, and sample 4 were obtained by performing separate tests on the sample tensile magnification values of 3.5, 4, 4.2, and 4.5, and the aperture ratio of each sample was obtained by averaging four measurements. As shown in fig. 11, for each sample taken, the total area is the area of the selected picture area in the picture, the stretch area is the area of the selected area excluding the holes, and the aperture ratio = 1-stretch area divided by total area%.

The sanitary ware body in this embodiment uses this elastic waistline's advantage: is more breathable when contacting with the skin, and is not easy to sweat due to sultriness.

Although the aperture ratio is more than 45% when the stretching ratio value is 4-4.5, and the elastic sheet is pre-stretched to 4.5 times, the elastic waistline is very obviously cracked when the ultrasonic head touches the elastic sheet, although the average aperture ratio of the elastic waistline material is 50.31%, the cracked area is large; after the elastic material in sample 2 was pre-stretched 4 times, the average perforation rate reached 46.95% when the ultrasonic head was in contact with it; however, the material is not perforated in some areas, and is broken in some areas, so that the material has a low porosity. When the pre-stretching ratio of the elastic sheet is 4.2 times, the holes punctured by ultrasonic waves are uniformly distributed, the opening rate is 64.64%, and the material has good air permeability. In conclusion, if the elastic waistline material is used, the numerical value of the opening rate of the sample 1 pre-stretched by 3.5 times is low, and the air permeability of the sample is poor; sample 2, which was 4 times stretched, had both the disadvantage of poor opening and the risk of cracking of the elastic material; when the pre-stretching ratio of the elastic material of the sample 3 is 4.2 times, the elastic material is more uniformly perforated after the ultrasonic head contacts, the perforated ratio is higher, the processing technology is stable and the air permeability is good when the elastic waistline of the sanitary article body is made by the subsequent process, and the pre-stretching ratio range of the elastic sheet is 4.2 times; therefore, the pre-stretch magnification value of the elastic sheet or the elastic film in the elastic waist band is 3 to 5, more preferably 3.5 to 4.5, and preferably in the range of 4 to 4.5, and the aperture ratio can be maintained at 45 to 50%; a slightly preferable range is 4.2 to 4.5, and the aperture ratio is slightly low, but can be maintained at about 50%; the optimum use value is 4.2 or 4.1-4.3, the open pore rate can be kept at 60%, the optimum value is 4.2, and the average open pore rate is tested to be 64.64%.

Testing the bonding strength among the inner sheet layer, the outer sheet layer and the elastic sheets of the elastic waistline: stretching the prepared perforated elastic waistline by 100%, cutting to 25mm × 100mm, selecting one end as a starting end, peeling 15mm in advance, clamping the peeling end by a material tension meter to perform a peeling force test, wherein the stretching speed is 100mm/min, and the peeling distance is 60mm; and (3) testing the welding strength of the end part of the elastic waistline component, cutting the component welded by ultrasonic waves into 25mm multiplied by 100mm, selecting one end as a starting end, peeling 15mm in advance, clamping the peeling end by a material tension meter to test the peeling force, wherein the stretching speed is 100mm/min, the peeling distance is 60mm, and the elastic waistline with the stretching multiplying power of 3.5, 4, 4.2 and 4.5 is respectively tested.

As shown in fig. 12, the lower the stretch ratio of the elastic sheet, the better the bond strength between the nonwoven fabric and the elastic material, and the lower the bond strength when the stretch ratio of the elastic material is closer to the breaking ratio of the material, because the larger the stretch ratio, the thinner the effective thickness of the elastic material; when the preferred magnification of the hole pattern is 4.2 times, the bonding strength between the material layers is 0.98N/25mm, the strength value is close to the requirement of the interlayer strength of the waist material, the subsequent ultrasonic energy density needs to be adjusted, or the thicknesses of the upper non-woven fabric and the lower non-woven fabric are changed to be optimized and improved, and the interlayer welding strength can also be improved by changing the shape and the area of the ultrasonic head, so that the elastic material of the sample 3 has the best effect when the pre-stretching magnification value is 4-4.5 and 4.2 times in consideration of both air permeability and bonding strength.

When being used for trousers type panty-shape diapers elastic waist, need weld at both sides waist, the back intensity of welding needs to satisfy the user and dresses the activity in-process and not split, also facilitates the use back simultaneously, and the user tears from the side.

As shown in FIG. 13, the welding strength of the side waist is obtained by the actual use test of personnel, wherein the preferable welding strength range of the side waist is 12N-18N/25 mm, namely the welding strength of each 25mm wide material; ultrasonic end edge sealing welding is carried out on the non-woven fabric containing the elastic material and the elastic material, the diameter of a welding point is 0.8mm, the center distance between each point and each other is 1.8mm, double rows are welded, and the distance between each row and each other is 2.5mm; welding two samples 1 made of elastic materials with the stretching ratios of 3.5 times to obtain a sample 5, and performing welding by the same method, wherein samples made of two materials with the stretching ratios of 4 times, 4.2 times and 4.5 times are named as a sample 6, a sample 7 and a sample 8 after welding; and testing the welding strength of the samples by using a tensile machine, wherein the welding strength of different samples is in the preferred welding strength range of 12N-18N/25 mm. The welding strength of the waist edge seal cannot be influenced by the elastic waistline, and the subsequent production of the edge seal mold can be further optimized in a welding pattern mode under a double-row welding model, and the space for selecting the pattern is large because the welding strength is not greatly influenced by the existence of the elastic material.

Example two

Referring to fig. 9 to 10 again, the second embodiment discloses a sanitary product with elastic waistlines, which is different from the first embodiment in that: the sanitary product body is suitable for menstrual period pants, and the length and the width of the sanitary product body are lengthened; the length of the absorber of the absorption core in the back waistline region b is reduced, and the length of the absorber accounts for about 20-60%; the width of the absorber in the rear waistline area is lengthened, and the sanitary product body with the shape is more suitable for menstrual pants.

The enclosure 7 comprises a base portion 71 arranged on the waterproof bottom layer 3, the base portion 71 extends towards one end far away from the waterproof bottom layer 3 and is folded to form a first folded portion 72, the first folded portion 72 extends towards one end of the waterproof bottom layer 3 and is folded to form a second folded portion 73, the base portion 71 and the second folded portion 73 are fixedly connected with the waterproof bottom layer 3, the first folded portion 72 is not in contact with the second folded portion 73, the second folded portion 73 extends towards one end far away from the waterproof bottom layer and is folded to form a third folded portion 74, the third folded portion 74 is connected with the second folded portion 73, the crotch elastic member comprises a first crotch elastic member 41 and a second crotch elastic member 42, the first crotch elastic member 41 is arranged between the first folded portion 72 and the base portion 71, and the second crotch elastic member 42 is arranged between the second folded portion 73 and the third folded portion 74; because the first folding part 72 is not contacted with the second folding part 73, the first crotch part elastic part and the second crotch part elastic part are stretched when the enclosure is in use, and the second crotch part elastic part drives the second folding part and the third folding part to stand up to two sides of the width of the absorber; and first crotch portion elastic component will drive basilar part and first turnover portion and stand, surrounds the protection to absorbent body width both sides, and this two crotch portion elastic component is better to health supplies body side leakage protection nature, especially when the health supplies body is used as menstrual period trousers.

EXAMPLE III

The third embodiment discloses a sanitary product with elastic waistline, which is different from the first embodiment in that: the sanitary article body is used for the adult paper diaper, the length and the width are lengthened, and the sanitary article body is more suitable for adults.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

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 sanitary product with elastic waistline comprises a sanitary product body (1), and is characterized in that the sanitary product body (1) is provided with a front waistline region (a), a rear waistline region (b) and a crotch region (c) arranged between the front waistline region (a) and the rear waistline region (b), an absorber (2) is arranged in the crotch region (c), a waterproof bottom layer (3) is arranged at the bottom end of the absorber (2) far away from the human body in a compounding manner, and an elastically telescopic crotch elastic part (4) is arranged on the contact surface of the crotch region (c) and the human body skin;

the sanitary product body (1) further comprises an elastic waistline, the elastic waistline comprises a front elastic waistline body (5 a) which is located in a front waistline region (a) and can elastically stretch out and draw back, and a back elastic waistline body (5 b) which is located in a back waistline region (b) and can elastically stretch out and draw back, the elastic waistline comprises an inner sheet layer (51) which is attached to the skin side of a human body, an outer sheet layer (53) which is not contacted with the skin of the human body and an elastic sheet (52) which has elasticity, the elastic sheet (52) is arranged between the outer sheet layer (53) and the inner sheet layer (51), a plurality of holes (5 c) are distributed in the elastic sheet (52), and the inner sheet layer (51), the elastic sheet (52) and the outer sheet layer (53) are connected with one another.

2. A sanitary article of elastic waist circumference according to claim 1, wherein: the elastic sheet (52) is a tpu elastic film or a pp film.

3. A sanitary article of elastic waist circumference according to claim 1, wherein: the outer sheet layer (53) and the inner sheet layer (51) are made of non-woven fabrics with air permeability, and the outer sheet layer (53) and the inner sheet layer (51) are fixedly connected with the non-perforated areas of the elastic sheets (52).

4. A sanitary article of elastic waist circumference according to claim 1, wherein: the outer sheet layer (53) covers the front waistline region (a), the rear waistline region (b) and a local crotch region (c) between the front waistline region (a) and the rear waistline region (b), the absorber (2) is arranged on the crotch region (c) of the contact surface of the outer sheet layer (53) and a human body in a compounding mode, the elastic sheet (52) stretched in advance is broken through ultrasonic joints to form a plurality of openings (5 c), and therefore the outer sheet layer (53) and the inner sheet layer (51) are connected to the elastic sheet (52).

5. A sanitary article of elastic waist circumference according to claim 1, wherein: the sanitary product body (1) is provided with a longitudinal direction (L) along the length direction and a transverse direction (W) along the width direction, and the two longitudinal ends of the outer sheet layer (53) are folded inwards and fixed on the surface of the absorber (2).

6. A sanitary article of elastic waist circumference according to claim 1, wherein: the front elastic waistline (5 a) and the back elastic waistline (5 b) are distributed at one end far away from the absorber (2) and provided with a plurality of elastic rubber bands (6), and the stretching ratio value of the elastic rubber bands (6) close to the edge of the elastic waistline is larger than that of the elastic rubber bands (6) far away from the edge of the elastic waistline.

7. A sanitary article of elastic waist circumference according to claim 1, wherein: the waterproof bottom layer (3) is arranged on two transverse sides of the absorber (2) and is provided with a protective enclosure (7), and the crotch elastic piece (4) is arranged on the protective enclosure (7).

8. The sanitary article of claim 7, wherein: protect and enclose (7) including locating basilar part (71) on waterproof bottom (3), basilar part (71) is to keeping away from that waterproof bottom (3) one end extends and the fifty percent discount forms first folded over portion (72), first folded over portion (72) is to extending shape and fifty percent discount formation second folded over portion (73) of waterproof bottom (3) one end, basilar part (71) and second folded over portion (73) and waterproof bottom (3) fixed connection, second folded over portion (73) is to keeping away from waterproof bottom (3) one end and extending formation and fifty percent discount formation third folded over portion (74), third folded over portion (74) is connected with second folded over portion (73), crotch portion elastic component (4) have first crotch portion elastic component (41) and second crotch portion elastic component (42), between first folded over portion (72) and basilar part (71) are located to first crotch portion (41), second folded over portion (73) and third folded over portion (74) are located to second elastic component (42).

9. A sanitary article of elastic waist circumference according to claim 1, wherein: the absorption body (2) is provided with a plurality of concave holes (22) at the top, the absorption body (2) comprises a flow guide layer (2 a), an absorption layer (2 b) and surface layer non-woven fabrics (2 c) used for surrounding the flow guide layer (2 a) and the absorption layer (2 b), a plurality of protrusions (21) are arranged on the surfaces of the flow guide layer (2 a) and the absorption layer (2 b), the protrusions (21) are distributed in a staggered mode, the adjacent protrusions (21) surround to form a surrounding area, and the concave holes (22) are located in the surrounding area; the weight of the absorption resin of the absorption layer (2 b) in the area (x) of the concave hole (22) is larger than that of the absorption resin of the area far away from the concave hole (22).

10. A sanitary article of elastic waist circumference according to claim 1, wherein: edge sealing parts (5 d) are arranged on two transverse sides of the front elastic waistline (5 a) and the rear elastic waistline (5 b) close to the crotch region (c), a plurality of edge sealing welding points (5 e) are arranged on the edge sealing parts (5 d), a plurality of waistline welding points (5 h) are arranged on the front elastic waistline (5 a) and the rear elastic waistline (5 b), and the density of the edge sealing welding points (5 e) on the edge sealing parts (5 d) is greater than that of the waistline welding points (5 h) on the front elastic waistline (5 a) and the rear elastic waistline (5 b); the shape of the edge sealing welding points (5 e) is circular, and the waistline welding points (5 h) comprise a plurality of first welding points (5 h 1) arranged at intervals and second welding points (5 h 2) arranged at intervals and arranged at intervals of 2-6 mm between the first welding points (5 h 1).

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