CN220109967U - Sanitary article using perforated wood pulp core - Google Patents

Abstract

The utility model relates to the technical field of personal hygiene products, in particular to a hygiene product using a perforated wood pulp core, which comprises a wood pulp core, a sponge three-dimensional guard, a surface layer non-woven fabric, a bottom film and a guard non-woven fabric; the middle area of the surface of the wood pulp core body is provided with an annular diversion trench and a raised line, the raised line is positioned in an area surrounded by the annular diversion trench, the bottom of the annular diversion trench is lower than the plane of the surface of the wood pulp core body, the surface of the raised line is higher than the plane of the surface of the wood pulp core body, the surface of the raised line is provided with a plurality of channels perpendicular to the wood pulp core body, and the channels penetrate through the wood pulp core body; the three-dimensional protection of sponge with protect the quantity of non-woven fabrics and be two respectively, two three-dimensional protection of sponge connect respectively in two protect the top of non-woven fabrics and be located the intermediate region of wood pulp core, it is relatively poor to solve the diffusion effect of wood pulp core, and the utilization ratio is low to and the uncomfortable problem of user's use.

Description

Sanitary article using perforated wood pulp core

Technical Field

The utility model relates to the technical field of personal hygiene products, in particular to a hygiene product using a perforated wood pulp core.

Background

Daily chemical products (hand cleaner, laundry detergent), sanitary products for women during menstrual period (sanitary napkins, sanitary pads, tampons), excreta sanitary products such as diapers [ diaper pants, diapers (pads, papers), urine-separating pads ], skin, mucous membrane sanitary products (wet tissues, sanitary wet tissues), contact lens care products (contact lens care solution, contact lens preservation solution, contact lens cleaners), gynecological sanitary products (women antibacterial lotion, vaginal lotion) and other disposable sanitary products (tissue papers, sanitary napkins, cosmetic cottons/papers/towels, fingers/finger-stalls, masks, paper tableware, condoms) belong to the personal sanitary products.

Along with the development of the age, the use concept of sanitary articles by consumers is continuously changed, and paper diapers (including menstrual pants, pull-ups, adult incontinence articles and the like) are one of the common sanitary articles in daily life, and besides the requirement that the sanitary towel meets the basic functions of use leakage prevention and good absorption, the requirements on the use comfort and pleasure of the paper diapers are also higher and higher.

The key core technology of the paper diaper is a core body. The wood pulp product core of most paper diapers (including menstrual pants, pull-up pants, adult incontinence products and the like) in industry is in a straight strip shape, the middle guide groove is integrally similar to a trapezoid, the width of the guide groove is 10-20mm, the length of the guide groove is 170-200mm, the groove is positioned in the middle of the core, a certain guide effect is achieved, but due to factors such as the design of ergonomic defects, the core is positioned in the position of the diaper, the diffusion effect of the core is poor, the utilization rate is low, the water-repellent spun-bonded non-woven fabric is adopted for the protection of the existing paper diapers, the water-repellent spun-bonded non-woven fabric is bonded through hot melt adhesive and rubber strings, then the protection is wrapped and folded, the three-dimensional protection effect is achieved by means of the two sides of the paper diapers by means of retraction of the rubber strings, but the rubber strings are very easy to hurt human skin, especially baby skin tender is formed by tightening the non-woven fabric, a plurality of hard sharp corners are formed, and consumers can feel uncomfortable when using the paper diapers.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present utility model is to provide a sanitary article using a perforated wood pulp core, which solves the problems of poor diffusion effect of the wood pulp core, low utilization rate, and uncomfortable use of users.

To achieve the purpose, the utility model adopts the following technical scheme:

a sanitary article using a perforated wood pulp core comprises a wood pulp core, a sponge three-dimensional guard, a surface layer non-woven fabric, a bottom film and a guard non-woven fabric;

the surface layer non-woven fabric, the wood pulp core body and the bottom film are stacked from top to bottom, and the two side edges of the middle area of the surface layer non-woven fabric, the wood pulp core body and the bottom film are respectively in an arc shape with outward openings;

the middle area of the surface of the wood pulp core body is provided with an annular diversion trench and a raised line, the length direction of the annular diversion trench and the length direction of the raised line are respectively consistent with the length direction of the wood pulp core body, the raised line is positioned in an area surrounded by the annular diversion trench, the bottom of the annular diversion trench is lower than the plane of the surface of the wood pulp core body, the surface of the raised line is higher than the plane of the surface of the wood pulp core body, the surface of the raised line is provided with a plurality of channels perpendicular to the wood pulp core body, and the channels penetrate through the wood pulp core body;

the three-dimensional sponge protection is characterized in that the number of the three-dimensional sponge protection and the number of the protection non-woven fabrics are two respectively, the two protection non-woven fabrics are used for wrapping the surface non-woven fabrics, the wood pulp core body and the two side edges of the bottom film respectively, and the two three-dimensional sponge protection are connected to the tops of the two protection non-woven fabrics and are located in the middle area of the wood pulp core body respectively.

Further, wood pulp core still is equipped with first arc guiding gutter and second arc guiding gutter, first arc guiding gutter with the second arc guiding gutter is located respectively the upper and lower both ends of annular guiding gutter along its length direction, first arc guiding gutter with the radian opening of second arc guiding gutter is faced respectively annular guiding gutter just sets up relatively, the both ends of first arc guiding gutter with the both sides limit intercommunication of annular guiding gutter, the second arc guiding gutter is kept away from annular guiding gutter.

In one embodiment, the length of the wood pulp core is 480mm, the width of the upper end and the lower end of the wood pulp core ranges from 120 mm to 140mm, and the minimum width of the middle of the wood pulp core is 90mm; the length of the raised strips is 200mm, and the distance from the upper end surfaces of the raised strips to the upper end surfaces of the wood pulp cores is 80mm.

Further, the arrangement of a plurality of the channels encloses the group and forms the hexagon of bilateral symmetry about, the relative long limit of hexagon is located respectively the both sides limit of sand grip, one has been seted up respectively to hexagonal upper and lower both ends the channel, hexagonal center is located directly over the center of sand grip.

Further, the center distance between two adjacent channels in the up-down direction is 9mm, and the center distance between two adjacent channels in the left-right direction is 9mm.

Preferably, the cross section of the channel is circular, the diameter of the circular shape is 1mm, the total thickness of the wood pulp core is 12mm, and the thickness of the raised strips is 6mm.

Further, the sponge three-dimensional protection ring comprises a first outer edge layer, a second outer edge layer, a plurality of stretching sponge sections and a plurality of colloids;

the first outer edge layer and the second outer edge layer are arranged in a vertically stacked mode to form an installation area;

the stretching sponge sections are in a strip shape, a plurality of the stretching sponge sections are fixed in the installation area through the colloid, and a plurality of elastic stretching cavities are formed in the installation area at intervals along the left-right direction by the plurality of the stretching sponge sections and the plurality of the colloid; when the elastic stretching cavity is in an unstretched state, a plurality of stretchable sections with wave structures are formed at intervals by a plurality of colloids on the first outer edge layer and the second outer edge layer respectively;

the first outer edge layer and the second outer edge layer are formed by folding the same waterproof non-woven fabric, the waterproof non-woven fabric is connected end to form the installation area, and the stretching sponge sections are stretching sponge strips integrally formed.

Further, the length of the stretched sponge strip after being stretched is 280mm-350mm, and the stretching rate of the stretched sponge strip is 150% -500%; when the elastic stretching cavity is in a complete stretching state, the spacing distance between adjacent colloids is less than 5mm.

Further, the thickness of the colloid is 0.05mm-0.09mm, and the thickness of the waterproof non-woven fabric is 0.16mm-0.21mm.

Further, the vertical section of the stretching sponge strip is round, rectangular or elliptical.

The technical scheme provided by the utility model can comprise the following beneficial effects:

1. the middle region on the surface of the wood pulp core body is provided with an annular diversion trench and a raised line which are arranged along the length direction of the wood pulp core body, the raised line is positioned in a region surrounded by the annular diversion trench, excrement such as menstrual blood and the like enters the position of the raised line through the surface non-woven fabric, the bottom of the annular diversion trench is lower than the plane of the surface of the wood pulp core body, the surface of the raised line is higher than the plane of the surface of the wood pulp core body, the thickness of the raised line is increased so as to improve the absorption capacity of the wood pulp core body, the centralized position of excrement such as menstrual blood is accelerated to be absorbed, a plurality of channels which are perpendicular to the wood pulp core body and penetrate the wood pulp core body are arranged on the raised line, and the absorption capacity of the wood pulp core body is further improved by improving the diffusion capacity. In addition, the annular diversion trenches are arranged on the periphery of the raised strips, so that the diversion effect on excessive excreta such as menstrual blood can be achieved, and the utilization rate of the wood pulp core body is improved.

2. The two side edges of the middle area of the surface layer non-woven fabric, the wood pulp core body and the bottom film are respectively in arc shapes with outward openings, and the wearing comfort level of a user can be improved according to the ergonomic design; two protect the non-woven fabrics will respectively the top layer non-woven fabrics wood pulp core with the both sides limit parcel of basement membrane prevents excrement such as menstrual blood from exposing from this side, two simultaneously the three-dimensional protection of sponge is connected respectively in two protect the top of non-woven fabrics and be located the middle zone of wood pulp core, connect the three-dimensional protection of sponge promptly in the top of the side of arciform, further improve sanitary ware's anti-side leakage effect through the three-dimensional protection of sponge, make the user more comfortable not reining in the meat when using simultaneously.

Drawings

FIG. 1 is a cross-sectional view of one embodiment of the present utility model.

FIG. 2 is a cross-sectional view of one embodiment of the present utility model.

Fig. 3 is a front view of a wood pulp core according to one embodiment of the utility model.

Fig. 4 is an enlarged view of the area E of fig. 3.

Fig. 5 is a cross-sectional view of a three-dimensional sponge cover according to an embodiment of the present utility model, wherein a is a partially stretched sponge section contracted cross-sectional view and B is a partially stretched sponge section fully stretched cross-sectional view.

Fig. 6 is a cross-sectional view of another embodiment of the present utility model.

Wherein: the wood pulp core body 1, the annular diversion trench 11, the raised strips 12, the channels 121, the first arc diversion trench 13, the second arc diversion trench 14, the sponge three-dimensional protection wall 2, the first outer edge layer 21, the second outer edge layer 22, the colloid 23, the stretching sponge strip 24, the elastic stretching cavity 01, the stretchable section 02, the surface layer non-woven fabric 3, the bottom film 4 and the protection wall non-woven fabric 5.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following describes the technical scheme of the present utility model further by means of specific embodiments with reference to fig. 1 to 6.

A sanitary article using a perforated wood pulp core, as shown in fig. 1 and 2, comprises a wood pulp core 1, a sponge three-dimensional guard 2, a surface layer non-woven fabric 3, a bottom film 4 and a guard non-woven fabric 5;

the surface layer non-woven fabric 3, the wood pulp core body 1 and the bottom film 4 are stacked from top to bottom, and two side edges of the middle area of the surface layer non-woven fabric 3, the wood pulp core body 1 and the bottom film 4 are respectively in an arc shape with outward openings;

the middle area of the surface of the wood pulp core body 1 is provided with an annular diversion trench 11 and a raised line 12, the length direction of the annular diversion trench 12 and the length direction of the raised line 12 are respectively consistent with the length direction of the wood pulp core body 1, the raised line 12 is positioned in an area surrounded by the annular diversion trench 12, the bottom of the annular diversion trench 11 is lower than the plane of the surface of the wood pulp core body 1, the surface of the raised line 12 is higher than the plane of the surface of the wood pulp core body 1, the surface of the raised line 12 is provided with a plurality of grooves 121 which are perpendicular to the wood pulp core body 1, and the grooves 121 penetrate through the wood pulp core body 1;

the three-dimensional sponge protection device comprises a wood pulp core body 1, a bottom film 4, a sponge three-dimensional protection device 2 and protection non-woven fabrics 5, wherein the number of the sponge three-dimensional protection device 2 and the number of the protection non-woven fabrics 5 are two respectively, the two protection non-woven fabrics 5 are respectively used for wrapping the surface non-woven fabrics 3, the wood pulp core body 1 and the two side edges of the bottom film 4, and the two sponge three-dimensional protection device 2 is respectively connected to the tops of the two protection non-woven fabrics 5 and is located in the middle area of the wood pulp core body 1.

At present, most paper diapers (including menstrual pants, pull-up pants, adult incontinence products and the like) in the industry are in a straight strip shape, the middle guide groove is integrally similar to a trapezoid, the width of the pressing groove is 10-20mm, the length of the pressing groove is 170-200mm, the groove is positioned in the middle of the core, a certain guide effect is achieved, but due to factors such as the design of ergonomic defects, the core is positioned at the position of the paper diaper, the diffusion effect of the core is poor, the conductivity is poor, the water-repellent spun-bonded non-woven fabric is adopted for the protection of the existing paper diaper to be bonded through hot melt adhesive and rubber band, then the protection is wrapped and folded, the three-dimensional protection mode is achieved on the two sides of the paper diaper by means of retraction of the rubber band, but the rubber band is very easy to tighten up to hurt human skin, especially baby young skin, the rubber band tightens up the non-woven fabric to form a plurality of hard sharp corners, and consumers can generate uncomfortable feelings caused by friction to consumers when in use. Therefore, the utility model provides a sanitary article using a wood pulp core, which comprises a surface non-woven fabric 3, a wood pulp core 1 and a bottom film 4 which are laminated from top to bottom, wherein the surface non-woven fabric 3, the wood pulp core 1 and the bottom film 4 are laminated in sequence and are adhered and fixed by special structural adhesive of the sanitary article, two side edges along the length direction are respectively covered by 2 guard non-woven fabrics 5, and the other two ends are respectively connected with an inner waistline non-woven fabric and an outer waistline non-woven fabric of the sanitary article, and the surface non-woven fabric 3 is in direct contact with skin, preferably hot air non-woven fabrics, is soft in material, good in air permeability and can prevent liquid from back permeation, the bottom film 4 is preferably a waterproof polyethylene film, excrement such as menstrual blood can be reserved in the wood pulp core 1, the guard non-woven fabrics 5 are preferably waterproof non-woven fabrics;

secondly, be equipped with in the middle region on the surface of wood pulp core 1 and follow annular guiding gutter 11 and the sand grip 12 that the length direction of wood pulp core 1 set up, sand grip 12 are located in the region that annular guiding gutter 12 encloses, the concentrated position that excrement such as menstrual blood got into wood pulp core 1 through top layer non-woven fabrics 3 is in the position of sand grip 12, because the tank bottom of annular guiding gutter 11 is less than the plane that the surface of wood pulp core 1 is located, the surface of sand grip 12 is higher than the plane that the surface of wood pulp core 1 is located, thereby utilize the thickness increase of sand grip 12 to improve the absorptive capacity of wood pulp core for the concentrated position of excrement such as menstrual blood is absorbed with higher speed, further, is equipped with a plurality of perpendicular to at sand grip 12 wood pulp core 1 and runs through the channel 121 of wood pulp core 1, improves the diffusion capacity and makes the imbibition ability of wood pulp core 1 further improve. In addition, the annular diversion trenches 11 are arranged on the periphery of the raised strips 12, so that the diversion effect on excessive excreta such as menstrual blood can be achieved, and the utilization rate of the wood pulp core body 1 is improved.

Finally, the two side edges of the middle area of the surface layer non-woven fabric 3, the wood pulp core body 1 and the bottom film 4 are respectively in an arc shape with outward openings, so that the wearing comfort level of a user can be improved according to the ergonomic design; two protect non-woven fabrics 5 will respectively the top layer non-woven fabrics 3 wood pulp core 1 with the both sides limit parcel of basement membrane 4 prevents excrement such as menstrual blood from exposing from this side, two simultaneously the three-dimensional protection of sponge 2 connect respectively in two protect the top of non-woven fabrics 5 and be located the middle zone of wood pulp core 1, connect the three-dimensional protection of sponge 2 promptly in the top of the side of arciform, further improve the side leakage prevention effect of sanitary articles through the three-dimensional protection of sponge 2, make the user more comfortable not reining in the meat when using simultaneously.

Further, as shown in fig. 2 and fig. 3, the wood pulp core 1 is further provided with a first arc-shaped diversion trench 13 and a second arc-shaped diversion trench 14, the first arc-shaped diversion trench 13 and the second arc-shaped diversion trench 14 are respectively located at the upper end and the lower end of the annular diversion trench 11 along the length direction of the annular diversion trench, the radian openings of the first arc-shaped diversion trench 13 and the second arc-shaped diversion trench 14 are respectively towards the annular diversion trench 11 and are oppositely arranged, the two ends of the first arc-shaped diversion trench 13 are communicated with two side edges of the annular diversion trench 11, and the second arc-shaped diversion trench 14 is far away from the annular diversion trench 11.

Further, arc openings are formed in the upper end and the lower end of the annular diversion trench 11 and face the annular diversion trench 11 respectively and are symmetrically provided with a first arc diversion trench 13 and a second arc diversion trench 14, two ends of the first arc diversion trench 13 are communicated with two side edges of the annular diversion trench 11, front side liquid leakage is avoided, and the second arc diversion trench 14 is far away from the annular diversion trench 11, and rear side liquid leakage is avoided.

In an alternative embodiment, the length of the wood pulp core 1 is 480mm, the width of the upper end and the lower end of the wood pulp core 1 ranges from 120 mm to 140mm, and the minimum width of the middle of the wood pulp core 1 is 90mm; the length of the raised strips 12 is 200mm, and the distance from the upper end surface of the raised strips 12 to the upper end surface of the wood pulp core 1 is 80mm.

Further, the length of the wood pulp core 1 is 480mm, the length of the protruding strip 12 is 200mm, and the distance from the upper end surface of the protruding strip 12 to the upper end surface of the wood pulp core 1 is 80mm, so that the protruding strip 12 is located at a position above the center of the wood pulp core 1, corresponding to the concentration position of excreta such as menstrual blood, and the absorption efficiency is improved.

In an alternative embodiment, the arrangement of the plurality of channels 121 forms a hexagon with upper and lower sides and bilateral symmetry, two opposite long sides of the hexagon are respectively located at two sides of the raised strip 12, two channels 121 are respectively provided at the upper and lower ends of the hexagon, and the center of the hexagon is located right above the center of the raised strip 12.

Further, a plurality of channels are formed on the raised strips 12, the channels 121 are arranged to form a hexagon with vertical symmetry, two opposite long sides of the hexagon are respectively located at two side edges of the raised strips 12, one channel 121 is respectively formed at the upper and lower ends of the hexagon, the center of the hexagon is located right above the center of the raised strips 12, and the liquid absorbing capacity of the wood pulp core 1 is improved while the structural stability of the core is ensured.

In an alternative embodiment, as shown in fig. 4, the center distance between two adjacent channels 121 in the up-down direction is 9mm, and the center distance between two adjacent channels 121 in the left-right direction is 9mm.

It should be noted that, through experiments, the vertical and horizontal spacing distances of the channels 121 are set to be 9mm, so that the liquid absorbing capacity can be improved, and the structure of the wood pulp core 1 and the absorption area of the raised strips 12 can be ensured.

In an alternative embodiment, the cross section of the channel 121 is circular, the diameter of the circular shape is 1mm, the total thickness of the wood pulp core 1 is 12mm, and the thickness of the raised strips is 6mm.

The cross section of the channel 121 was set to be circular, and the diameter of the circular shape was 1mm after the test, so that the effect of guiding the rapid infiltration of excreta such as menstrual blood was best while keeping the absorption area of the ridge 12 as large as possible. And the total thickness of the wood pulp core body 1 is 12mm, wherein the thickness of the raised strips is 6mm, so that the comfort level is improved while the absorption effect is ensured.

In an alternative embodiment, as shown in fig. 5, the sponge three-dimensional enclosure 2 includes a first outer edge layer 21, a second outer edge layer 22, a plurality of stretched sponge segments, and a plurality of colloids 23;

the first outer edge layer 21 and the second outer edge layer 22 are stacked up and down to form a mounting region;

the stretching sponge sections are in a strip shape, a plurality of stretching sponge sections are fixed in the installation area through the colloid 23, and a plurality of elastic stretching cavities 01 are formed in the installation area at intervals along the left-right direction by the plurality of stretching sponge sections and the plurality of colloid 23;

when the elastic stretching cavity 01 is in an unstretched state, a plurality of stretchable sections 02 with wave structures are formed at intervals of a plurality of colloids on the first outer edge layer 21 and the second outer edge layer 22 respectively;

the first outer edge layer 21 and the second outer edge layer 22 are formed by folding the same waterproof non-woven fabric, and the waterproof non-woven fabric is connected end to form the installation area, and a plurality of the stretching sponge sections are stretching sponge strips 24 which are integrally formed.

Specifically, by utilizing the elasticity of the sponge, a plurality of stretching sponge sections are stretched firstly and then fixed in an installation area between the first outer edge layer 21 and the second outer edge layer 22 through the colloid 23, and then a plurality of elastic stretching cavities 01 are formed through the elastic stretching of the plurality of stretching sponge sections, so that rubber strings are replaced by the plurality of stretching sponge sections, and the protection is more comfortable and not to be stretched by utilizing the soft and elastic characteristics of the sponge; and the first outer edge layer 21 and the second outer edge layer 22 form interval shrinkage through a plurality of elastic stretching cavities 01, a plurality of stretchable sections 02 with wave structures are formed at intervals by a plurality of colloid to generate integral uniform folds, and a plurality of hard sharp corners are not formed like rubber strings for tightening non-woven fabrics so that consumers bring uncomfortable feeling due to friction when in use, thereby avoiding hurting human skin and improving comfort and pleasure when in use.

In addition, form a waterproof non-woven fabrics through folding mode first outer fringe layer 21 with second outer fringe layer 22, will waterproof non-woven fabrics's end to end connects formation the installation zone, and a plurality of tensile sponge section is tensile sponge strip 24 that integrated into one piece set up, specifically, through tensile sponge strip 24 after stretching, place on waterproof non-woven fabrics, thereby fix the tensile sponge strip 24 of rectangular shape through colloid discontinuity in the installation zone that waterproof non-woven fabrics folded and formed thereby form a plurality of elasticity and tensile chamber 01, the material preparation is simple, and the preparation is convenient.

In an alternative embodiment, the length of the stretched sponge strip 24 after being stretched is 280mm-350mm, the stretching rate of the stretched sponge strip 24 is 150% -500%, and the use requirement of the protective cover of the sanitary article is met through a test, so that the side leakage prevention effect is achieved.

When the elastic stretching cavity 01 is in a fully stretched state, the spacing distance between adjacent colloids 23 is less than 5mm. It should be noted that, setting the interval distance between adjacent colloids 23 to be less than 5mm can firmly adhere the stretched sponge strips 24 after stretching to the waterproof non-woven fabric, and after the elastic stretching cavity is contracted, the waterproof non-woven fabric between the adjacent colloids 23 cannot form numerous hard sharp corners, so that the use comfort of users is further improved.

In an alternative embodiment, the thickness of the colloid 23 is 0.05mm-0.09mm, and the thickness of the waterproof nonwoven is 0.16mm-0.21mm. The thickness of the colloid 3 is set to be 0.05mm-0.09mm through the test, so that the stretching sponge strip 4 can be fixed, and the stretching of the sponge and the comfort of the protection can not be influenced.

Preferably, the waterproof nonwoven fabric is a SMS or 3S type waterproof nonwoven fabric. The SMS or 3S type water-repellent non-woven fabric is a composite non-woven fabric which has good softness, air permeability, water impermeability, no toxicity, no smell and good effect in separating bacteria, and is used in daily sanitary products. The thickness of the 3S non-woven fabric is slightly larger than that of the SMS non-woven fabric, and different types can be selected according to different disposable sanitary products.

In an alternative embodiment, as shown in fig. 1 and 6, the vertical cross section of the elongated sponge strip 24 is circular or rectangular or oval.

Further, the vertical section of the stretched sponge strip 24 is circular, square or oval, and can be selected according to the type or specification of the sanitary article, so that the sponge in a long strip shape is more convenient to manufacture.

When the vertical cross section of the stretched sponge strip 24 is circular, the diameter of the circular shape ranges in size from 5mm to 20mm. When the vertical section of the stretching sponge strip 24 is rectangular, the dimension range of the side length of the rectangle is 5mm-20mm, the dimension can be selected according to the type or specification of the non-sanitary article, and compared with the existing rubber band tightening, the stretching cross-sectional area of the sponge is larger than the telescopic cross-sectional area of the rubber band, and the comfort level is improved more favorably. Specifically, the cross section size of the sponge after stretching is 4-10mm, and the cross section size of the rubber band after stretching is 0.23mm, so that the sponge can solve the problem of industrial three-dimensional guard and skin tightening.

Preferably, the waterproof nonwoven fabric and the sheath nonwoven fabric 5 are integrally provided.

Further, the waterproof nonwoven cloth integrally arranged at the top of the protective nonwoven cloth 5 is folded to form the first outer edge layer 21 and the second outer edge layer 22 wrapping the sponge, so that the side leakage preventing effect is improved, the processing procedures are reduced, and the production efficiency is improved.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (10)

1. A sanitary article utilizing a perforated wood pulp core, characterized by: comprises a wood pulp core body, a sponge three-dimensional guard, a surface layer non-woven fabric, a bottom film and a guard non-woven fabric;

the surface layer non-woven fabric, the wood pulp core body and the bottom film are stacked from top to bottom, and the two side edges of the middle area of the surface layer non-woven fabric, the wood pulp core body and the bottom film are respectively in an arc shape with outward openings;

the middle area of the surface of the wood pulp core body is provided with an annular diversion trench and a raised line, the length direction of the annular diversion trench and the length direction of the raised line are respectively consistent with the length direction of the wood pulp core body, the raised line is positioned in an area surrounded by the annular diversion trench, the bottom of the annular diversion trench is lower than the plane of the surface of the wood pulp core body, the surface of the raised line is higher than the plane of the surface of the wood pulp core body, the surface of the raised line is provided with a plurality of channels perpendicular to the wood pulp core body, and the channels penetrate through the wood pulp core body;

the three-dimensional sponge protection is characterized in that the number of the three-dimensional sponge protection and the number of the protection non-woven fabrics are two respectively, the two protection non-woven fabrics are used for wrapping the surface non-woven fabrics, the wood pulp core body and the two side edges of the bottom film respectively, and the two three-dimensional sponge protection are connected to the tops of the two protection non-woven fabrics and are located in the middle area of the wood pulp core body respectively.

2. A sanitary article utilizing a perforated wood pulp core according to claim 1, wherein: the wood pulp core is still equipped with first arc guiding gutter and second arc guiding gutter, first arc guiding gutter with the second arc guiding gutter is located respectively the upper and lower both ends of annular guiding gutter along its length direction, first arc guiding gutter with the radian opening of second arc guiding gutter is oriented respectively annular guiding gutter and just set up relatively, the both ends of first arc guiding gutter with the both sides limit intercommunication of annular guiding gutter, the second arc guiding gutter is kept away from annular guiding gutter.

3. A sanitary article utilizing a perforated wood pulp core according to claim 1, wherein: the length of the wood pulp core body is 480mm, the width range of the upper end and the lower end of the wood pulp core body is 120-140mm, and the minimum width of the middle of the wood pulp core body is 90mm; the length of the raised strips is 200mm, and the distance from the upper end surfaces of the raised strips to the upper end surfaces of the wood pulp cores is 80mm.

4. A hygiene article utilizing a perforated wood pulp core according to claim 3, characterized in that: the arrangement of a plurality of channel encloses the group and forms the hexagon of bilateral symmetry about, the relative long limit of hexagon is located respectively the both sides limit of sand grip, one has been seted up respectively to hexagonal upper and lower both ends the channel, hexagonal center is located directly over the center of sand grip.

5. A sanitary article utilizing a perforated wood pulp core according to claim 4, wherein: the center distance between two adjacent channels along the up-down direction is 9mm, and the center distance between two adjacent channels along the left-right direction is 9mm.

6. A sanitary article utilizing a perforated wood pulp core according to claim 5, wherein: the cross section of the channel is circular, the diameter of the circular shape is 1mm, the total thickness of the wood pulp core body is 12mm, and the thickness of the raised strips is 6mm.

7. A sanitary article utilizing a perforated wood pulp core according to claim 1, wherein: the sponge three-dimensional protection ring comprises a first outer edge layer, a second outer edge layer, a plurality of stretching sponge sections and a plurality of colloids;

the first outer edge layer and the second outer edge layer are arranged in a vertically stacked mode to form an installation area;

the stretching sponge sections are in a strip shape, a plurality of the stretching sponge sections are fixed in the installation area through the colloid, and a plurality of elastic stretching cavities are formed in the installation area at intervals along the left-right direction by the plurality of the stretching sponge sections and the plurality of the colloid;

when the elastic stretching cavity is in an unstretched state, a plurality of stretchable sections with wave structures are formed at intervals by a plurality of colloids on the first outer edge layer and the second outer edge layer respectively;

the first outer edge layer and the second outer edge layer are formed by folding the same waterproof non-woven fabric, the waterproof non-woven fabric is connected end to form the installation area, and the stretching sponge sections are stretching sponge strips integrally formed.

8. A sanitary article according to claim 7, wherein: the length of the stretched sponge strip after being stretched is 280-350 mm, and the stretching rate of the stretched sponge strip is 150-500%; when the elastic stretching cavity is in a complete stretching state, the spacing distance between adjacent colloids is less than 5mm.

9. A sanitary article according to claim 7, wherein: the thickness of the colloid is 0.05mm-0.09mm, and the thickness of the waterproof non-woven fabric is 0.16mm-0.21mm.

10. A sanitary article according to claim 7, wherein: the vertical section of the stretching sponge strip is round, rectangular or elliptical.