CN218652245U - Super ventilative and leak-proof panty-shape diapers after preventing - Google Patents

Abstract

The utility model provides a super ventilative and leak-proof panty-shape diapers after preventing, includes the main part, locates the magic subsides of main part both sides, the main part includes waterproof ventilative layer, urine that outside-in laid in proper order at least and shows gluey and absorb the core, waterproof ventilative layer adopts to spin to melt the non-woven fabrics and makes, should spin to melt the non-woven fabrics and include and glue the fibre layer and melt the fibre layer, it is equipped with two-layerly to glue the fibre layer, melts the fibre layer and locates between the two-layer fibre layer that spins. The utility model discloses an add calcium carbonate powder's transparent film and waterproof ventilative layer and the comprehensive design of the absorption core and the surface course of the moisture permeable passageway of area, can realize that water-proof effects is good and ventilative effect. Meanwhile, through a special cutting process, the front end of the diaper is formed into a concave shape and the rear end of the diaper is heightened, so that the effect of preventing rear leakage is achieved.

Description

Super ventilative and leak-proof panty-shape diapers after preventing

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a super-breathable paper diaper capable of preventing back leakage.

Background

The paper diaper is mainly formed by bonding materials such as non-woven fabrics, high-absorptivity resin, elastic spandex filaments and the like by hot melt adhesive. The paper diaper is divided into a surface layer non-woven fabric, an absorption core body, a breathable film, glue, a magic buckle, a waist tape non-woven fabric, a bottom layer non-woven fabric and the like according to materials of different parts forming the paper diaper. The paper diapers are classified into waist-patch type paper diapers and short-pants type paper diapers according to different wearing modes.

As shown in fig. 1, when each layer of the existing paper diaper is seen from outside to inside, the outermost layer is a bottom layer of non-woven fabric which is usually made of spun-bonded and hot air materials, the width of the used materials is 240mm to 360mm, and the main function is to make the paper diaper softer;

compounding a PE breathable film at the longitudinally central position of the inner layer of the bottom layer non-woven fabric, wherein the width of the PE breathable film is 180mm to 220mm, the moisture permeability is 1800 to 3500g/m & gt 24h, the effect is to prevent urine leakage and discharge a part of moisture, and the pattern of the paper diaper is also printed on the layer;

1 to 3mm of urine developing glue with the quantity of 1 to 4 strips is coated in the upward middle of the PE breathable film, the color of the urine developing glue is changed after the urine developing glue meets urine, and the function is to prompt that the paper diaper needs to be replaced;

the core body of the product is arranged above the PE breathable film, generally consists of a 5-layer structure and mainly has the functions of absorbing and locking urine;

the surface layer is arranged above the core body, and the surface layer is generally formed into a concave-convex structure by 2 layers of non-woven fabrics through ultrasonic welding, has the function of quickly diffusing urine and is a layer directly contacting the skin of the baby;

the two sides of the surface layer are provided with double-layer waterproof fence barriers which are used for preventing urine from leaking laterally;

ear pastes are arranged between the bottom layer non-woven fabrics and the leakage-proof check blocks at the two sides of the rear end of the paper diaper, and the ear pastes are formed by bonding the non-woven fabrics and the magic buttons;

the front waist patch which can be repeatedly pasted is arranged on the outer side of the non-woven fabric at the front section of the paper diaper and matched with the ear patch at the rear end of the paper diaper to form a closed system of the paper diaper, so that a baby can conveniently wear the diaper.

The breathable group of the prior paper diaper depends on the moisture of the PE breathable film after urine is permeated, and the moisture permeation quantity is limited, so that the time for the skin of the infant to be in a damp and hot environment is long. Meanwhile, the front end and the rear end of the paper diaper in the prior art are flush, and excrement is easy to leak from the back when a user such as a baby excretes in a lying position.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a paper diaper which can promote the moisture permeability of the product, reduce the damp and hot environment when the baby wears the paper diaper, reduce the incidence rate of red wind and prevent the rear leakage. In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a super ventilative and leak-proof panty-shape diapers after preventing, includes the main part, locates the magic subsides of main part both sides, the main part includes waterproof ventilative layer, urine that outside-in laid in proper order at least and shows gluey and absorb the core, waterproof ventilative layer adopts to spin to melt the non-woven fabrics and makes, should spin to melt the non-woven fabrics and include and glue the fibre layer and melt the fibre layer, it is equipped with two-layerly to glue the fibre layer, melts the fibre layer and locates between the two-layer fibre layer that spins.

At the in-process that panty-shape diapers production blade coating urine showed gluey, urine shows gluey blade coating cloth on the transparent film of setting between two parties on above-mentioned waterproof ventilative layer, and the fibre clearance of the non-woven fabrics is melted in spinning that waterproof transparent film cover and lead to becoming big by high temperature, prevents the seepage.

On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme:

a transparent film is arranged between the waterproof breathable layer and the urine display adhesive, the absorption core body is provided with a moisture permeable channel, and the upper edge and the lower edge of the main body are wavy curved edges.

The basis weight of the transparent film is 8 to 48g, and the width of the transparent film is 10 to 45mm. The transparent film is prepared by mixing PE particles with calcium carbonate powder, melting at high temperature and extruding through a slit. The transparent film has holes with the diameter of 0.04 to 0.2 micrometer. In the production process, fine calcium carbonate powder forms holes with the diameter of 0.04-0.2 micrometer on the PE film, the diameter of the holes is between 0.0004 micrometer of water molecules and 100 micrometers of water drops, water vapor can pass through the holes, and the water drops can be blocked by the breathable film, so that the waterproof and breathable functions are realized.

Because the spun-melt non-woven fabric is used as the breathable waterproof material of the paper diaper, the fibers are deformed in the process of coating the urine-developing adhesive (the urine-developing adhesive needs high-temperature coating, and the coating temperature is 115-145 ℃), the fiber gaps are enlarged, and the problem of leakage caused by poor waterproof effect is solved. Therefore, a waterproof transparent film with a base weight of 8-48g and a width of 10-45mm is bonded in advance to a spunmelt nonwoven fabric which is a waterproof and breathable material, and the transparent film is made of the PE film, the CPP film or the OPP film.

The melt-blown fiber layer is provided with four layers. The spun-bonded fiber and the melt-blown fiber are formed by extruding PP particles after melting at high temperature (the melting temperature is 150 ℃), the fibers are correspondingly paved into 6 layers of fiber webs, and then the fibers are heated, melted and fixed by a hot roller to form the melt-spun non-woven fabric. The fiber gaps of the spun-melt non-woven fabric are within 2 microns, water vapor can pass through the gaps, and water drops cannot pass through the gaps. Therefore, the breathable film is replaced, and more water vapor can permeate through the breathable film while water drops are prevented from permeating through the breathable film.

The meltblown fiber layer has a fiber spacing of less than 2 microns.

The production process of the waterproof breathable layer comprises the following steps:

s1, melting PP particles at a melting temperature of 150 ℃, and extruding to form spun-bonded and melt-blown fibers;

s2, correspondingly paving the two fibers obtained in the step S1 into 6 layers of fiber nets from top to bottom of the spunbond fiber layer, the melt-blown fiber layer and the spunbond fiber layer;

and S3, heating, melting and fixing the fiber web obtained in the step S2 through a hot roller to prepare the spun-melt non-woven fabric.

The absorption core body comprises an upper non-woven fabric layer, an upper high water-absorbent resin layer, a middle fluffy fiber layer, a lower high water-absorbent resin layer and a lower non-woven fabric layer which are sequentially arranged, and the absorption core body is provided with at least one flanging to form a moisture permeable channel. After the core absorbs urine, the super absorbent resin (SAP) absorbs water and swells, gaps among the fluffy fibers are blocked, and moisture is organized and conducted in the core. The folded and fixed absorption core body with the turned-up edge can form a moisture permeation channel after absorbing urine, and moisture can be discharged through the moisture permeation channel.

The main part still includes the surface course non-woven fabrics, and this surface course non-woven fabrics is located the inboard of absorbing the core, the surface course non-woven fabrics adopts ultrasonic bonding knurling to make by double-deck non-woven fabrics, and the one deck non-woven fabrics of surface course non-woven fabrics is equipped with the arch. The bulges can be 3D salient points or ditch-shaped bulges, the bulges form a hollow structure between the double-layer non-woven fabrics, and after urine is diffused and dredged through the surface layer non-woven fabrics and absorbed by SAP in the core, the hollow structure between the double-layer non-woven fabrics can discharge moisture.

The wavy curved edge at the upper edge of the main body is the same as the wavy curved edge at the lower edge of the main body in shape. When in continuous production, a cutter for cutting off the continuous diapers is provided with a certain radian, and an uneven wave shape is formed on a product after the diaper is cut by the radian of the cutter. The front end concave part and the rear end convex part of the continuous two-piece product can be completely spliced, and no waste material and loss are generated in the cutting process.

Wavy curved edge is including end to end's first sunken, first arch, central sunken, the second is protruding and the second is sunken in proper order, first sunken is the same with the sunken half right half curvature in center, the sunken half left half curvature in center of second is the same, first protruding is the same with the bellied curvature in second.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

the utility model discloses an add calcium carbonate powder's transparent film and waterproof ventilative layer and the comprehensive design of the absorption core and the surface course of the moisture permeable passageway of area, can realize that water-proof effects is good and ventilative effect. Meanwhile, through a special cutting process, the front end of the diaper is formed into a concave shape and the rear end of the diaper is heightened, so that the effect of preventing rear leakage is achieved.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the super-breathable and rear leakage-proof diaper of the present invention.

Fig. 2 is a cross-sectional view of the absorbent core of the super-breathable and rear-leakage-proof paper diaper of the utility model.

Fig. 3 is a cross-sectional view of the waterproof and air-permeable layer of the super-breathable and rear leakage-proof paper diaper of the present invention.

Fig. 4 is a schematic view of the unfolding structure of the super-breathable and rear leakage-proof diaper of the present invention.

Fig. 5 is a schematic structural view of the super-breathable and rear leakage-proof diaper of the present invention in a continuous state.

Wherein, preceding waist pastes 1, bottom non-woven fabrics 2, waterproof ventilative layer 3, transparent film 4, urine shows glue 5, pastes non-woven fabrics 6 about, magic subsides 7, absorbs core 8, turn-ups 81, passes through wet passageway 82, surface course non-woven fabrics 9, protects and encloses non-woven fabrics 10, first sunken 11, first arch 12, central sunken 13, the second is protruding 14, the second is sunken 15.

Detailed Description

The paper diaper provided by the utility model is further explained by combining with the attached drawings.

The utility model provides a super ventilative and leak-proof panty-shape diapers after, includes the main part, locates the magic subsides 7 of main part both sides, and magic subsides 7 are fixed in the main part through controlling pasting non-woven fabrics 6. Wherein, the main body at least comprises a front waist patch 1, a bottom layer non-woven fabric 2, a waterproof breathable layer 3, a urine-developing adhesive 5, an absorption core body 8, a surface layer non-woven fabric 9 and a protection non-woven fabric 10 which are sequentially arranged from outside to inside.

In the first embodiment, as shown in fig. 1 and 3, in order to achieve a good waterproof and breathable effect, a transparent film 4 is further disposed between the waterproof and breathable layer 3 and the urine-developing adhesive 5. The transparent film 4 is produced as follows:

s11, mixing calcium carbonate powder in a certain proportion in the PE particles, wherein the specific mixing proportion can be adjusted according to production requirements.

And S12, melting the PE particles mixed in the step S12 at high temperature, and extruding the melted PE particles through a slit to form a film.

As the fine calcium carbonate powder forms holes with the diameter of 0.04-0.2 micron on the PE film, the diameter of the holes is between the diameter of water molecules of 0.0004 micron and the diameter of water drops of 100 microns, water vapor can pass through the holes, and the water drops can be blocked by the transparent film 4, so that the waterproof and breathable functions are realized.

Further, the waterproof breathable layer 3 is made of PP spun-melt non-woven fabric. The structure of the spunmelt nonwoven fabric is SMMMMS, wherein S represents a spunbonded fiber layer, the fiber gap is within 18 microns, M represents a melt-blown fiber layer, and the gap between the melt-blown fibers of the M layer is within 2 microns.

The production process of the waterproof breathable layer 3 is as follows:

s21, melting PP particles at the melting temperature of 150 ℃, and extruding to form spun-bonded and melt-blown fibers;

s22, correspondingly paving the two fibers obtained in the step S21 into 6 layers of fiber webs from top to bottom according to the sequence of the spunbonded fiber layer, the melt-blown fiber layer and the spunbonded fiber layer;

and S23, heating, melting and fixing the fibers of the fiber web obtained in the step S22 through a hot roller to form the spun-melt non-woven fabric.

Specifically, the fiber gaps of the waterproof breathable layer 3 are within 2 microns, water vapor can pass through the fiber gaps, water drops cannot pass through the fiber gaps, and the water drops are prevented from permeating through the fiber gaps and can permeate more water vapor.

Furthermore, when the PP spunmelt nonwoven fabric of the waterproof and breathable layer 3 is used as a breathable and waterproof material of a diaper, the PP fibers are deformed in the process of coating the urine-sensitive adhesive (the urine-sensitive adhesive needs to be coated at a high temperature, and the coating temperature is 115 ℃ to 145 ℃), the fiber gaps are enlarged, and the problem of leakage due to poor water-proof effect is caused.

Therefore, a waterproof transparent film 4 with the basis weight of 8-48g and the width of 10-45mm is bonded in advance to the middle of the waterproof breathable layer 3, and the transparent film 4 is compounded on the waterproof breathable layer 3 by hot melt adhesive.

Specifically, the composite process of the waterproof breathable layer 3, the transparent film 4 and the urine developing adhesive 5 comprises the following steps:

s31, coating a hot melt adhesive on the transparent film 4, wherein the coating basis weight of the hot melt adhesive is 0.8 g/square meter to 4.0 g/square meter, and the coating width of the hot melt adhesive is 8mm to 43 mm;

s32, compounding the transparent film 4 obtained in the step S31 and the spun-melt non-woven fabric of the waterproof breathable layer 3 to form a waterproof breathable material of the paper diaper;

and S33, coating the urine developing adhesive 5 on the central transparent film made of the waterproof and breathable material obtained in the step S32.

Since the waterproof transparent film covers the fiber gaps of the spun-melt non-woven fabric which are enlarged due to high temperature, the purpose of preventing leakage can be achieved.

In the second embodiment, as shown in fig. 2, in order to achieve a good ventilation effect, the absorbent core 8 is composed of a 5-layer structure including an upper layer nonwoven fabric, an upper layer SAP, a middle bulky fiber layer, a lower layer SAP, and a lower layer nonwoven fabric. After the absorbent core 8 absorbs urine and the SAP absorbs water and swells, the gaps among the fluffy fibers are blocked, so that moisture is prevented from being conducted in the absorbent core 8.

Further, the absorbent core 8 is provided with a cuff 81 on the basis of the 5-layer structure, and after the absorbent core 8 absorbs urine, a moisture permeation channel 82 is formed, and moisture can be discharged through the moisture permeation channel 82.

The surface layer non-woven fabric 9 is formed by double-layer non-woven fabric which can be formed by adopting PE and PET double-component fibers through ultrasonic welding and embossing. And 3D salient points or ditch-shaped bulges are formed on the upper layer of non-woven fabric after embossing, and hollow structures are formed between the double layers of non-woven fabrics due to the bulges. After urine diffuses through the surface layer non-woven fabric 9 and is absorbed by SAP of the absorption core body 8, the hollow structure between the two layers of non-woven fabrics can further discharge moisture.

In the third embodiment, as shown in fig. 4 to 5, in the continuous production, the cutter for cutting off the continuous diapers has a certain radian, and due to the radian of the cutter, the uneven wave shape is formed on the product after the cutter cuts the diaper. After the paper diaper is cut by the cutter, a hill-shaped bulge is formed at the central position of the rear end of the paper diaper main body, the depth difference a of the bulge from the highest point to the lowest point is 6-40 mm, the width b of the bulge is 80-140 mm, the highest point of the bulge is positioned on the longitudinal central line of the paper diaper main body, and the lowest points on the two sides of the bulge exceed the edge of the main body.

Specifically, the wavy curved edge comprises a first recess 11, a first protrusion 12, a central recess 13, a second protrusion 14 and a second recess 15 which are sequentially connected end to end, the curvature of the right half of the first recess is the same as that of the central recess, the curvature of the left half of the second recess is the same as that of the central recess, and the curvature of the first protrusion is the same as that of the second protrusion.

The lower edge and the upper edge of the continuous two paper diapers can be completely spliced, and no waste and loss are generated in the cutting process.

In the fourth embodiment, the transparent film 4 can be made of a CPP film or an OPP film, and the other embodiments are the same as those of the above embodiments.

While the invention has been 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 scope of the appended claims.

Claims (9)

1. The utility model provides a super ventilative and leak-proof panty-shape diapers after preventing, includes the main part, locates the magic subsides of main part both sides, the main part includes waterproof ventilative layer, urine that outside-in laid in proper order at least and shows gluey and absorb the core, its characterized in that waterproof ventilative layer adopts to spin to melt the non-woven fabrics and makes, should spin to melt the non-woven fabrics including spinning bond the fibrous layer and melt the fibrous layer, spinning bond the fibrous layer and being equipped with two-layerly, melt the fibrous layer and locate between two-layer spun bond fibrous layer.

2. The ultra-breathable and back-leakage-proof paper diaper as claimed in claim 1, wherein a transparent film is further disposed between the waterproof and breathable layer and the urine-sensitive adhesive, the absorbent core is provided with a moisture-permeable channel, and the upper and lower edges of the main body are wavy curved edges.

3. The ultra-breathable and rear-leakage-proof paper diaper as claimed in claim 2, wherein the basis weight of the transparent film is 8-48g, and the width of the transparent film is 10-45mm.

4. The ultra-breathable and leak-proof diaper of claim 1, wherein the meltblown fiber layer is provided with four layers.

5. The ultra-breathable and leak-back resistant diaper of claim 1, wherein said meltblown fiber layer has a fiber gap of less than 2 microns.

6. The pant diaper of claim 1, wherein the absorbent core comprises an upper nonwoven fabric layer, an upper superabsorbent resin layer, a middle fluff fiber layer, a lower superabsorbent resin layer, and a lower nonwoven fabric layer sequentially disposed, and the absorbent core is provided with at least one cuff to form a moisture permeable passage.

7. The ultra-breathable and leak-proof diaper as claimed in claim 1, wherein the main body further comprises a surface layer nonwoven fabric disposed on the inner side of the absorbent core, the surface layer nonwoven fabric is formed by embossing a double layer nonwoven fabric by ultrasonic welding, and one layer of the surface layer nonwoven fabric is provided with protrusions.

8. The pant diaper of claim 1, wherein the wavy curve of the upper edge of the main body is the same as the wavy curve of the lower edge of the main body.

9. The pant diaper of claim 8, wherein the wavy curve comprises a first recess, a first protrusion, a central recess, a second protrusion, and a second recess connected end to end in sequence, the curvature of the right half of the first recess is the same as that of the central recess, the curvature of the left half of the second recess is the same as that of the central recess, and the curvature of the first protrusion is the same as that of the second protrusion.

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