CN214761822U - Infant paper diaper capable of conducting infiltration rapidly - Google Patents

Abstract

The utility model relates to a baby diaper capable of conducting infiltration rapidly, which comprises a liquid-permeable surface layer, a liquid-impermeable bottom layer and a composite absorption core body, wherein the composite absorption core body comprises a first swelling paper layer, a first super absorbent resin layer, a fluffy non-woven fabric layer, a second super absorbent resin layer and a second swelling paper layer from top to bottom, and all the layers are overlapped and connected in sequence; each fluffy non-woven fabric strip has the width ratio of 60-80%, so that a flow guide permeation through hole is formed between two adjacent fluffy non-woven fabric strips; the diversion permeation through hole is a gap-shaped long slit or a long cutting groove and is communicated with the first expanded paper layer and the second expanded paper layer, and the composite absorption core body can be folded at the crotch position to form a proper concave shape after being saturated and absorbing liquid.

Description

Infant paper diaper capable of conducting infiltration rapidly

Technical Field

The utility model belongs to the field of absorbent articles, concretely relates to baby diaper that oozes under quick conduction.

Background

The utility model relates to a through revising compound core production technology, make the core appear the production technology of water conservancy diversion effect, domestic market health supplies absorbs the core and uses five layers of compound cores as the main, there is great problem in the aspect of core intensity and dry and comfortable nature wood pulp polymer core (traditional core), but compound core is because polymer distribution and material conductivity can be limited itself, the conduction of liquid only relies on material itself and the liquid passing nature of polymer itself can't make absorption core obtain make full use of, it is that compound core of present stage exists great drawback to absorb the core low-usage.

SUMMERY OF THE UTILITY MODEL

Not enough in order to overcome the water conservancy diversion infiltration effect that exists among the prior art, lead to the problem that the dry and comfortable nature of combined absorption core utilization ratio and baby diaper is low among the baby diaper to and the crotch portion that props open the baby by force when baby diaper saturated absorption, cause the problem of O shape leg injury to baby easily, the utility model provides a can conduct the baby diaper that oozes down fast to realize through following technical scheme:

for reaching the effect of permeating fast and conducting fast, the utility model provides a baby diaper that oozes under quick conduction, baby diaper includes liquid permeability surface course, liquid-tight nature bottom to and be located the compound absorption core between liquid permeability surface course, the liquid-tight nature bottom, the compound absorption core is from last to including first popped ply, first super absorbent resin layer, fluffy non-woven fabrics layer, second super absorbent resin layer and the popped ply of second down, connects each layer coincide in proper order and forms, and it has following structural feature:

(1) the fluffy non-woven fabric layer is composed of a plurality of fluffy non-woven fabric strips arranged along the width direction of the fluffy non-woven fabric layer, and two ends of each fluffy non-woven fabric strip extend along the length direction of the fluffy non-woven fabric strip.

(2) Each fluffy non-woven fabric strip has the width ratio of 60-80%, so that a flow guiding permeation through hole is formed between two adjacent fluffy non-woven fabric strips.

(3) The diversion permeation through hole is a gap-shaped long slit or a long cutting groove and is communicated with the first expanded paper layer and the second expanded paper layer, and the composite absorption core body can be folded at the crotch position to form a proper concave shape after being saturated and absorbing liquid.

Preferably, the concave shape is a "V" or "U" shape.

Preferably, the width ratio is 70% to 80%.

Preferably, the bulky nonwoven layer is composed of 2 or more bulky nonwoven strips.

The utility model discloses the beneficial effect who realizes does:

firstly, water conservancy diversion infiltration through-hole makes the water conservancy diversion effect of composite absorption core obtain very big promotion, thereby make baby diaper's water conservancy diversion nature, dry and comfortable nature is showing and is promoting, its reason lies in under the effect of water conservancy diversion infiltration through-hole, fluffy non-woven fabrics layer has been avoided diffusing on composite absorption core to liquid, the barrier effect of infiltration in-process, water conservancy diversion infiltration through-hole is a great space, make the first popped ply (first structural layer) and the popped ply (fifth structural layer) of second of composite absorption core directly switch on, surface liquid can infiltrate down the popped ply of second through the clearance fast like this, make liquid can permeate fast.

Secondly, under the effect of water conservancy diversion infiltration through-hole, liquid can be along clearance water conservancy diversion infiltration through-hole to both sides quick conduction, increases diffusion length, increases the utilization ratio of the compound absorption core of baby diaper, improves the dry and comfortable nature on surface.

Finally, water conservancy diversion infiltration through-hole is the clearance form, and the foldability is better, and when the compound absorption core in baby diaper absorbed more urine, the spill shape that suits the body can appear in baby diaper's crotch portion position, specifically does: when fluffy non-woven fabrics layer only had a clearance, crotch position forms the V type behind the imbibition, perhaps fluffy non-woven fabrics layer has two clearances, and crotch position forms the U-shaped behind the imbibition, and when having avoided appearing the saturated absorption, the compound core that absorbs demonstrates a fuller cuboid, struts baby's crotch portion by force, and long-time crotch portion struts, leads to the fact O shape leg for baby easily.

Drawings

Figure 1 is a schematic structural view of a composite absorbent core that is rapidly conductive of downward osmosis.

Fig. 2 is a schematic structural view of a flow-guiding infiltration opening of example 1.

Fig. 3 is a schematic structural view of a flow-guiding infiltration penetration hole of example 2.

Fig. 4 is a schematic structural view of a flow-guiding infiltration hole of example 3.

Figure 5 is a schematic cross-sectional view of a composite absorbent core that is rapidly conductive of downward osmosis.

Fig. 6 is a schematic view of a construction of a rapid-conduction absorbent article.

Figure 7 is a schematic view of the U-shape of the composite absorbent core after saturation and wicking.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1-7, the composite absorbent core for rapid conduction and infiltration according to the present invention has the following structure: composite absorption core 1 is from last to including first popped ply 11, first super absorbent resin layer 12, fluffy non-woven fabrics layer 13, second super absorbent resin layer 14 and the popped ply 15 of second down, and it forms to superpose each layer in proper order to connect, and its structural feature lies in:

first, the bulky nonwoven layer 13 is composed of more than 2 bulky nonwoven strips, for example, the number of bulky nonwoven strips may be 2, 3, 4, 5 or 6, preferably 2, 3 or 5.

Secondly, a flow guiding and penetrating through hole with gap-shaped long fine slits or long cutting grooves is arranged between two adjacent fluffy non-woven fabric strips, so that the fluffy non-woven fabric layer has better foldability.

Thirdly, after the composite absorption core body is saturated and absorbs liquid, the two longitudinal sides of the composite absorption core body can be respectively folded towards the longitudinal center direction along the diversion permeation through holes, so that the composite absorption core body forms a proper concave shape at the crotch part, such as a V shape or a U shape, the legs of a user are prevented from being unfolded, and the legs of the user are prevented from being rubbed.

The method specifically comprises the following steps:

(1) when the fluffy non-woven fabric layer has only one gap, namely when the fluffy non-woven fabric layer is cut into two parts, the crotch part forms a V shape after imbibing;

(2) or when the fluffy non-woven fabric layer has only two gaps, the crotch part forms a U shape after liquid absorption.

The concave shape of the body fitting avoids the situation that when saturated absorption occurs, the composite absorption core body presents a full cuboid, the crotch of a baby is forcedly propped open, and the long-time crotch is propped open, so that O-shaped legs are easily caused for the baby.

The following examples are provided to describe the embodiments of the lofty nonwoven fabric layer and the flow-guiding penetration holes of the slit-like long slits or long slits thereof.

Example 1

This example cut the lofty nonwoven layer 13 into 3 lofty nonwoven strips. The fluffy non-woven fabric strip positioned in the longitudinal center line area is taken as a reference fluffy non-woven fabric strip 13b, the width ratio of the fluffy non-woven fabric strip is 80%, and the width ratios of the fluffy non-woven fabric strip 13a and the fluffy non-woven fabric strip 13c positioned on the two sides of the reference fluffy non-woven fabric strip are both 80%.

Between the bulky nonwoven fabric strip 13a and the reference bulky nonwoven fabric strip 13b, and between the reference bulky nonwoven fabric strip 13b and the bulky nonwoven fabric strip 13c, a gap-like long slit or slot is formed, that is, the flow guide penetration through holes 101 and 102 are formed between two adjacent bulky nonwoven fabric strips.

The flow guiding penetration holes 101 and 102 greatly improve the flow guiding effect of the composite absorption core body 1. The diversion permeation through holes 101 and 102 greatly improve the diffusion of the composite absorption core body 1, the composite absorption core body 1 capable of rapidly conducting infiltration is obtained, the absorption speed, the plane absorption performance and the U-shaped pressurization absorption performance of the composite absorption core body are obviously improved, and the absorption performance of the composite absorption core body is shown in the attached table.

Example 2

This example cut the lofty nonwoven layer 13 into 3 lofty nonwoven strips. The fluffy non-woven fabric strip positioned in the longitudinal center line area is taken as a reference fluffy non-woven fabric strip 13b, the width ratio of the fluffy non-woven fabric strip is 80%, and the width ratios of the fluffy non-woven fabric strip 13a and the fluffy non-woven fabric strip 13c positioned on the two sides of the reference fluffy non-woven fabric strip are both 60%.

Between the bulky nonwoven strips 13a, the reference bulky nonwoven strips 13b, and between the reference bulky nonwoven strips 13b and the bulky nonwoven strips 13c, a gap-like long slit or slot is formed, i.e., the flow-guiding and penetrating through- holes 103, 104 are formed between two adjacent bulky nonwoven strips.

The flow guide penetration through holes 103 and 104 greatly improve the flow guide effect of the composite absorption core body. The diversion permeation through holes 103 and 104 greatly improve the diffusion of the composite absorption core body, the composite absorption core body capable of rapidly conducting the downward permeation is obtained, the absorption speed, the plane absorption performance and the U-shaped pressurization absorption performance of the composite absorption core body are obviously improved, and the absorption performance of the composite absorption core body is shown in the attached table.

Example 3

This example cut the lofty nonwoven layer 13 into 3 lofty nonwoven strips. The fluffy non-woven fabric strip positioned in the longitudinal center line area is taken as a reference fluffy non-woven fabric strip 13b, the width ratio of the fluffy non-woven fabric strip is 80%, and the width ratios of the fluffy non-woven fabric strip 13a and the fluffy non-woven fabric strip 13c positioned on the two sides of the reference fluffy non-woven fabric strip are both 70%.

Between the bulky nonwoven strips 13a, the reference bulky nonwoven strips 13b, and between the reference bulky nonwoven strips 13b and the bulky nonwoven strips 13c, a gap-like long slit or slot is formed, i.e., the flow-guiding and penetrating through- holes 105, 106 are formed between two adjacent bulky nonwoven strips.

The flow guiding effect of the composite absorption core body is greatly improved by the flow guiding penetration through holes 105 and 106. The diversion permeation through holes 105 and 106 greatly improve the diffusion of the composite absorption core body, the composite absorption core body capable of rapidly conducting the downward permeation is obtained, the absorption speed, the plane absorption performance and the U-shaped pressurization absorption performance of the composite absorption core body are obviously improved, and the absorption performance of the composite absorption core body is shown in the attached table.

Example 4

This example provides a baby diaper (disposable absorbent article) using the composite absorbent core capable of rapidly conducting downward permeation prepared in example 1, which comprises a liquid-permeable top sheet 2, a liquid-impermeable back sheet 4, and a composite absorbent core 1 capable of rapidly conducting downward permeation and leakproof isolation margins 3 on both sides of the composite absorbent core 1 therebetween. In addition, the composite absorbent core 1 may be wrapped with a wrapping layer 16.

This embodiment baby diaper's composite absorption core 1 is from last to including first popped ply, first super absorbent resin layer, fluffy non-woven fabrics layer, second super absorbent resin layer and the popped ply of second down, with each layer coincide in proper order and connect and form, its structural feature lies in: the fluffy non-woven fabric layer 13 is provided with guide permeation through holes 101 and 102 capable of rapidly conducting infiltration, the guide permeation through holes 101 and 102 present gap-shaped long slits or long cutting grooves, the first bulked paper layer and the second bulked paper layer are directly communicated, and the composite absorption core body 1 can be folded at the crotch position to form a proper concave shape after being saturated and absorbing liquid.

The flow guide penetration holes 101 and 102 of the embodiment can obviously improve the absorption speed, the plane absorption performance and the U-shaped pressurization absorption performance of the baby diaper, and the absorption performance is shown in the attached table.

Example 5

This example provides a baby diaper (disposable absorbent article) using the composite absorbent core capable of rapidly transmitting downward osmosis prepared in example 2, and differs from example 4 only in that the bulky nonwoven fabric strip 13b located in the longitudinal center region has a width ratio of 80%, while the bulky nonwoven fabric strips 13a, 13c located on both sides have a linear velocity of 60% both in the width ratio, and the flow guide and permeation through holes 103, 104 are formed.

The flow guide penetration holes 104 and 105 of the present embodiment can significantly improve the absorption speed, the plane absorption performance and the U-shaped compression absorption performance of the baby diaper, and the absorption performance is shown in the attached table.

Example 6

This example provides a baby diaper (disposable absorbent article) using the composite absorbent core capable of rapidly transmitting downward osmosis prepared in example 3, and differs from example 4 only in that the bulky nonwoven fabric strip 13b located in the longitudinal center region has a width ratio of 80%, while the bulky nonwoven fabric strips 13a, 13c located on both sides have a linear velocity of 70% both in the width ratio, and the fluid-transmitting through holes 105, 106 are formed.

The absorption properties of this example are shown in the attached table.

And (3) performance testing:

1. sample preparation:

(1) composite absorbent core that can conduct infiltration down fast: the superabsorbent resins (SAP), the lofty nonwoven layer, and the cover layer (bulked paper) used in the test and comparative samples were all commercially available and differed only by: the fluffy non-woven fabric layer in the test sample is the fluffy non-woven fabric formed by slitting differential stretching and narrowing, while the fluffy non-woven fabric layer in the comparison sample is the fluffy non-woven fabric applied in the prior art, namely the fluffy non-woven fabric is not slit differential stretching and narrowing.

(2) Baby diapers (disposable absorbent articles): baby diapers (model L) using the composite absorbent cores of examples 1, 2 and 3, respectively, which rapidly conduct the downward permeation, were used, and the comparative sample was a commercial ordinary baby diaper (model L).

2. The test method comprises the following steps:

(1) and (3) national standard test: the test was carried out with reference to GB/T28004-2011 diapers (sheets, pads).

(2) And (3) plane testing:

step 1, weighing 3 pieces of products with gram weights about the theoretical mean value of the products, recording the product quality as M, and weighing two pieces of filter paper (about 3g of the lower layer and about 10g of the upper layer) with the mass of M1/M2.

And 2, wetting the national standard washing funnel twice by using a test solution, fixing the funnel on a support, adjusting the lower opening of the funnel to face an operator, and enabling the central point of the lower opening to be vertically 5-10 mm away from the surface of the sample.

And 3, placing filter paper with known mass M1 on the sticky board, unfolding and flatly sticking the diaper sample on the sticky board (pressing the filter paper), removing the leakage-proof separation edge by using scissors, and flattening the diaper surface layer without folds.

And 4, taking 100ml of 0.9% physiological saline test solution added with the pigment by using the measuring cylinder, adjusting the flow rate of the special standard funnel, pouring the test solution into the funnel, and starting timing at the same time, wherein the time for completing the whole absorption of the liquid is the first absorption speed T1.

And 5, when the time reaches 5 minutes, adding liquid for the second time, and repeating the operation steps, wherein the time for completing the whole absorption of the liquid for the second time is the second absorption speed T2.

And 6, at the 10 th minute, taking M2 filter paper with known mass, placing the filter paper in the middle of the diaper, pressing the upper surface of the filter paper by using a 3.5kg press block, taking out the press block after 1 minute, taking out the upper layer and the lower layer of the filter paper with known mass, weighing, recording data, wherein the lower layer is M3, the upper layer is M4, and the diffusion length of the test product is L (the length is an average value).

And 7, recording and calculating secondary plane liquid feeding test data of the product, wherein the product quality is M, the first absorption speed is T1, the second absorption speed is T2, the rewet amount is M4-M2, the leakage amount is M3-M1, and the diffusion length is L.

(3) And (3) U-shaped test:

step 1, selecting 3 pieces of products with gram weights above and below a theoretical mean value, weighing the products with the mass of M, marking a liquid adding point in the center of the products, and weighing a proper amount of filter paper as M1.

And 2, sticking the product on a U-shaped groove, fixing the funnel on a support, and enabling the vertical distance between the central point of the lower opening and the surface of the sample to be 5-10 mm.

And 3, measuring 0.9% physiological saline at 23 +/-1 ℃ by using a measuring cylinder, wherein the liquid adding amount is 80 ML.

Step 4, pouring the test solution into an adjusted special standard funnel, and starting timing; the penetration (blotting) time is the first absorption rate T1 of the product.

And 5, when the time is 5 minutes, adding liquid for the second time, repeating the operation steps, and setting the infiltration (blotting) time as a second absorption speed T2 of the product.

And 6, taking down the tested diaper at 9min and 30s to present a natural bending condition, and placing the M1 filter paper with known mass in the middle of the diaper at the 10 th minute, and pressing the upper surface of the filter paper by using a 1.2kg pressing block.

Step 7, collecting the pressing block after 11 minutes, weighing the filter paper and recording data as M2; lay flat and measure the product diffusion length as L (length as mean).

And 8, recording the gram weight of the product as M, the first absorption speed T1, the second absorption speed T2, the rewet amount M3 as M2-M1 and the diffusion length as L.

The test results are shown in the following table.

TABLE 1 national Standard test for absorption and diffusion Properties

TABLE 2 planar absorption and diffusion Properties of composite absorbent core

TABLE 3U-shaped absorption and diffusion performance of composite absorption core

TABLE 4 planar absorption and diffusion Properties of absorbent articles

TABLE 5U-shaped absorption and diffusion Properties of absorbent articles

The test result shows, the utility model discloses a but compound absorption core that rapid conduction oozes down no matter is national standard test, plane absorption test or U type absorption test, cuts fluffy non-woven fabrics layer, the tensile water conservancy diversion infiltration through-hole that narrows down and form of differential, not only can increase the diffusion length of liquid, improves the core utilization ratio, simultaneously, increases down the liquid speed, promotes the dry and comfortable nature of product moreover, promotes product comprehensive properties.

The reason for this is that, under the effect of water conservancy diversion infiltration through-hole, avoided fluffy non-woven fabrics layer to liquid diffusion, the barrier effect of infiltration in-process on the composite absorption core, water conservancy diversion infiltration through-hole is a great space for the first popped paper layer (first structural layer) and the popped paper layer of second (fifth structural layer) of composite absorption core directly switch on, surface liquid can permeate the popped paper layer of second through the clearance under fast like this, makes liquid can permeate fast.

Meanwhile, under the action of the diversion permeation through holes, liquid can be quickly conducted to two sides along the clearance diversion permeation through holes, the diffusion length is increased, the utilization rate of the composite absorption core body is increased, and the dryness of the surface is improved.

Because the composite absorption core that can permeate down in quick conduction of this application has above-mentioned absorption properties, consequently, when being applied to baby diaper with this composite absorption core that can permeate down in quick conduction, baby diaper not only can increase the diffusion length of liquid, improves the core utilization ratio, simultaneously, increase liquid speed, and promote the dry and comfortable nature of product, promote baby diaper's quality, simultaneously, form the spill shape of fit for one's own right in crotch portion position behind the saturated absorption liquid of composite absorption core, like "V" or "U" type shape, prop open user's shank when avoiding baby diaper to use, it is comfortable to dress.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (4)

1. The utility model provides a quick conduction is baby diaper who oozes down, baby diaper includes liquid-permeable surface course, liquid-tight nature bottom to and be located the combined absorption core between liquid-permeable surface course, the liquid-tight nature bottom, the combined absorption core is from last to including first popped paper layer, first super absorbent resin layer, fluffy non-woven fabrics layer, second super absorbent resin layer and the popped paper layer of second down, and it forms its characterized in that to connect each layer coincide in proper order:

the fluffy non-woven fabric layer is composed of a plurality of fluffy non-woven fabric strips arranged along the width direction of the fluffy non-woven fabric layer, and two ends of each fluffy non-woven fabric strip extend along the length direction of the fluffy non-woven fabric strip;

each fluffy non-woven fabric strip has the width ratio of 60-80%, so that a flow guide permeation through hole is formed between two adjacent fluffy non-woven fabric strips;

the diversion permeation through hole is a gap-shaped long slit or a long cutting groove and is communicated with the first expanded paper layer and the second expanded paper layer, and the composite absorption core body can be folded at the crotch position to form a proper concave shape after being saturated and absorbing liquid.

2. The rapid conduction infiltration baby diaper of claim 1, wherein: the concave shape is a V shape or a U shape.

3. The rapid conduction infiltration baby diaper of claim 1, wherein: the width ratio is 70-80%.

4. The rapid conduction infiltration baby diaper of claim 1, wherein: the fluffy non-woven fabric layer is composed of more than 2 fluffy non-woven fabric strips.

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