CN220898949U - Absorption core structure capable of adjusting and reinforcing absorption area - Google Patents

Abstract

The utility model discloses an absorbent core structure capable of adjusting and reinforcing an absorption area, which comprises a first absorbent core, a second absorbent core, folding parts, absorption grooves and the like, wherein the second absorbent core is provided with a multi-layer absorbent core structure by folding along the edges of the two transverse ends of the first absorbent core, the position of the structure is an absorption penetration area of the absorbent core, and the absorption grooves and absorption holes are matched to quickly absorb and lock liquid discharged by a human body, then the liquid is diffused to the two longitudinal ends of the absorbent core through longitudinally distributed polymers and fibers in the first absorbent core, and the liquid is gradually and transversely diffused after being longitudinally diffused to the two ends through transverse cuts of the two longitudinal ends.

Description

Absorption core structure capable of adjusting and reinforcing absorption area

Technical Field

The utility model relates to the technical field of absorbent sanitary articles, in particular to an absorbent core structure capable of adjusting and reinforcing an absorption area.

Background

The absorbent core is a core component of an absorbent sanitary article such as a sanitary towel and a paper diaper, the current absorbent core is designed in a thinner direction based on the consideration of comfort and air permeability, the absorbent core is required to be kept at a certain thickness based on the consideration of the direction of liquid absorption performance, in actual use, the area of the absorbent core, which is opposite to the area of the human body, for discharging liquid needs to have stronger liquid absorption capacity, and the area, which is far away from the human body, for discharging liquid needs stronger liquid diffusion capacity, but most of the absorbent cores currently adopt a multi-layer composite structure, and the absorbent core adopting the composite structure has uniform thickness and good liquid absorption performance as a whole, but in actual use, all positions of the absorbent core do not need to have stronger liquid absorption performance, and the absorbent core adopting the composite structure has the problems of excessive performance, high cost and the like.

The prior art partial absorbent cores do not solve the above problems, such as absorbent cores (publication No. CN212439076U publication No. 2021-02-02), which discloses an absorbent core comprising a multi-layer body comprising, in order from top to bottom: the upper coating layer, the first high polymer absorption layer, the fluffy cotton layer, the second high polymer absorption layer and the lower coating layer are obtained by relatively bending two side ends of the multi-layer body at least once, and grooves are formed on the upper surface of the absorption core body at the two side ends after bending.

The absorbent core has strong liquid absorption and permeation performance, but the internal structure of the absorbent core is uniformly distributed, and the liquid absorption area and the liquid diffusion area are not reasonably distributed, so that the air permeability and other aspects still have room for improvement.

Disclosure of utility model

Aiming at the technical defects in the background technology, the utility model provides an absorption core structure with an adjustable reinforced absorption area, which solves the technical problems and meets the actual requirements, and the specific technical scheme is as follows:

The utility model provides an adjustable absorption core structure who strengthens absorption zone, includes first absorption core, first absorption core length direction is vertical, width direction is horizontal, first absorption core bottom is equipped with the second absorption core, second absorption core length direction both ends all are equipped with folding portion, every folding portion follow first absorption core lateral edge outwards extends the back edge first absorption core lateral edge through folding once at least to with first absorption core top surface butt, two the tip that folding portion is relative with first absorption core top forms an absorption groove.

As a further aspect of the present utility model, the fibers inside the first absorbent core are distributed in the longitudinal direction, and the distribution directions of the fibers inside the second absorbent core and the folded portion are the same as the distribution direction of the fibers inside the first absorbent core.

As a further aspect of the utility model, the ratio between the width of the second absorbent core and the length of the first absorbent core is 1:4-1:2.

As a further technical scheme of the utility model, the thickness ratio of the first absorbent core to the second absorbent core is 1:2-1:1.

As a further technical scheme of the utility model, the width ratio of the absorption groove to the first absorption core is 1:10-1:2.

As a further technical scheme of the utility model, the two longitudinal ends of the first absorbent core are respectively provided with a plurality of mutually parallel transverse cuts, and each transverse cut transversely extends to the two ends on the longitudinal central line of the first absorbent core.

As a further technical scheme of the utility model, the first absorbent core consists of an inner first core body and a first surface layer coated on the surface of the first core body, and the second absorbent core consists of an inner second core body and a second surface layer coated on the surface of the second core body.

As a further technical scheme of the utility model, the surface of the folding part is provided with a plurality of absorption holes, each absorption hole is communicated with the top surface of the folding part and the top surface of the first absorption core, and the aperture of each absorption hole is 0.1-5mm.

The utility model has the beneficial effects that:

The second absorbent core is provided with the three-layer absorbent core structure by folding along the edges of the two transverse ends of the first absorbent core to form the folding parts, the structure is positioned in the absorption and permeation area of the absorbent core body and can be matched with the absorption grooves to rapidly absorb and lock liquid discharged by a human body, and then the liquid is diffused to the two longitudinal ends of the absorbent core body through the longitudinally distributed fibers in the first absorbent core, so that the liquid is prevented from being retained on the surface of the absorbent core body to affect the dryness of the absorbent sanitary article, and meanwhile, the absorbent core has strong liquid absorption and permeation capacity, and the thickness of the two longitudinal ends is thinner, so that the comfort level can be improved.

Drawings

FIG. 1 is a schematic structural view of an absorbent core structure with an adjustable reinforced absorbent region.

Figure 2 is a cross-sectional view of an absorbent core structure with an adjustable reinforced absorbent area.

Figure 3 is a cross-sectional view of an absorbent core structure fold of an adjustable reinforced absorbent area folded into a multi-layered structure.

Figure 4 is a cross-sectional view of an alternative structure of an absorbent core structure fold that adjustably reinforces the absorbent area.

FIG. 5 is a schematic structural view of an absorbent core structure with an adjustable reinforced absorbent area with an adjustable fold position.

Figure 6 is a schematic illustration of the location of a transverse cut of an absorbent core structure for an adjustable reinforced absorbent region.

Figure 7 is a schematic illustration of the effect of a transverse cut of an absorbent core structure for adjustably reinforcing absorbent zones.

Figure 8 is a schematic illustration of the location of the absorbent apertures of an absorbent core structure of an adjustable reinforced absorbent region.

Wherein: the absorbent core comprises a first absorbent core 1, a first core 11, a first facing layer 12, a second absorbent core 2, a second core 21, a second facing layer 22, a folded portion 3, an absorbent groove 4, a transverse cut 5, and an absorbent hole 6.

Detailed Description

Embodiments of the present utility model will be described below with reference to the accompanying drawings and examples, but the embodiments of the present utility model are not limited to the following examples, and the present utility model relates to the relevant essential parts in the art, and should be regarded as known and understood by those skilled in the art.

Referring to fig. 1 or 2, an absorbent core structure with an adjustable reinforced absorbent area comprises a first absorbent core 1, wherein the longitudinal direction and the width direction of the first absorbent core 1 are longitudinal and transverse, a second absorbent core 2 is arranged at the bottom of the first absorbent core 1, folding parts 3 are respectively arranged at two ends of the second absorbent core 2 in the longitudinal direction, each folding part 3 extends outwards from the transverse edge of the first absorbent core 1 and then is folded at least once along the transverse edge of the first absorbent core 1 to be abutted against the top surface of the first absorbent core 1, and two opposite ends of the folding parts 3 and the top of the first absorbent core 1 form an absorbent groove 4.

The position of the second absorbent core 2 and the folded part 3 is an absorption and permeation area for discharging liquid relative to a human body, the second absorbent core 2 is folded along the edges of the two transverse ends of the first absorbent core 1 to form the folded part 3, so that the absorption and permeation area has a three-layer absorbent core structure, and the liquid can be simultaneously contacted with the first absorbent core 1 and the folded part 3 by matching with the absorption groove 4, so that the liquid discharged by the human body can be quickly absorbed and locked, and then the liquid is diffused to the two longitudinal ends of the first absorbent core 1 through the macromolecule fibers longitudinally distributed in the first absorbent core 1 and the second absorbent core 2, so that the liquid is prevented from being detained on the surface of the absorbent core to influence the dryness of the absorbent sanitary article.

Further, the utility model adopts the second absorbent core 2 and the folding part 3 to strengthen the liquid absorption performance of the absorption and permeation area of the absorbent core, and simultaneously the two longitudinal ends of the first absorbent core 1 are the two longitudinal ends of the whole absorbent core, so that the thickness of the two longitudinal ends of the absorbent core is lower, the air permeability of the absorbent core can be improved, and the contact part of a user can be kept dry by adopting the manufactured absorbent sanitary article.

Further, the positions of the second absorbent core 2 and the folded portion 3 are the absorption and penetration areas for discharging liquid relative to the human body, and the areas can be adaptively designed according to practical application and by adopting the prior art, so that the thickness of the areas is similar to that of the prior art, and the areas also have stronger liquid absorption and penetration performance, while the longitudinal two ends of the first absorbent core 1 are used as the liquid diffusion areas of the absorbent core, and do not need to have stronger liquid absorption and penetration performance, so that the thickness of the first absorbent core 1 is lower than that of the prior art, and the average thickness of the utility model is lower than that of the prior art, thereby reducing the material consumption for manufacturing the absorbent core and the manufacturing cost of the absorbent core.

Further, when the liquid discharged by the human body is more and the absorption core body cannot be absorbed quickly, the absorption groove 4 can play a role in draining the liquid in the longitudinal direction, so that part of the liquid is diffused in the two longitudinal ends of the absorption core body, the liquid absorption efficiency is improved, and the liquid can be prevented from flowing transversely, so that the side leakage prevention effect is achieved.

Further, as shown in fig. 3, the thickness of the folded portion 3 may be increased by folding, and then the folded portion 3 is folded to abut against the top surface of the first absorbent core 1, so that the folded portion 3 forms a multi-layer structure on the top of the first absorbent core 1, and the thickness of the absorption and permeation area of the absorbent core is increased, thereby improving the performance of the absorbent core in absorbing and locking liquid.

Further, as shown in fig. 4, the second absorbent core 2 may retain only the folded portion 3 on top of the first absorbent core 1, which may be achieved by: the first folding part 3 is fixed on the top plate surface of the first absorption core 1 by adopting modes such as adhesive adhesion; the second absorbent core 1 and the folding part 3 are the same and integrated, and the folding part 3 is folded at least once along the transverse edge of the first absorbent core 1 to be abutted against the top surface of the first absorbent core 1. The thickness of the absorption and permeation area of the absorption core body can be increased by adopting the two modes, the liquid absorption and locking performances of the absorption core body are improved, and the absorption groove 4 is reserved at the top of the first absorption core 1, so that the absorption core body can keep stronger liquid diffusion performance.

Further, as shown in fig. 5, the positions of the second absorbent core 2 and the folded portion 3 can be adjusted along the longitudinal direction of the first absorbent core 1, and the functions of the adjusted absorbent cores can be changed accordingly, for example: the absorption and permeation area of the absorption core body of the paper diaper is adjusted according to the actual use conditions of sanitary napkins for daily use and night use, and the absorption and permeation area of the absorption core body of the paper diaper is adjusted according to the physiological structures of male babies and female babies.

As one of the preferred embodiments of the present utility model, the fibers inside the first absorbent core 1 are distributed in the longitudinal direction, and the directions of the fibers inside the second absorbent core 2 and the folded portion 3 are the same as the directions of the fibers inside the first absorbent core 1.

According to the utility model, the distribution directions of the fibers in the first absorption core 1, the second absorption core 2 and the folding part 3 are all distributed along the longitudinal direction, when the folding part 3 absorbs and permeates liquid, the liquid can permeate to the two longitudinal ends of the absorption core body while being absorbed and permeated downwards under the guidance of the fibers in the absorption core body, so that the liquid can be rapidly and uniformly diffused in the absorption core body, and the liquid is prevented from being detained on the surface of the absorption core body due to excessive liquid, so that the absorbent sanitary product manufactured by the utility model has good liquid absorption performance and dryness.

As one of the preferred embodiments of the present utility model, the ratio between the width of the second absorbent core 2 and the length of the first absorbent core 1 is 1:4-1:2.

The present utility model can adjust the ratio between the width of the second absorbent core 2 and the length of the first absorbent core 1 according to the actual use requirement, thereby maximizing the liquid absorbing performance of the absorbent core while maintaining good air permeability, for example: the absorbent core of the sanitary napkin generally adjusts the ratio between the width of the second absorbent core 2 and the length of the first absorbent core 1 between 1:4 and 1:3; whereas the absorbent core of the overnight sanitary napkin generally adjusts the ratio between the width of the second absorbent core 2 and the length of the first absorbent core 1 between 1:3 and 1:2; the diaper is required to absorb a large amount of liquid, so that the absorbent core body of the diaper generally adjusts the ratio between the width of the second absorbent core 2 and the length of the first absorbent core 1 to 1:2.

As one of the preferred embodiments of the present utility model, the thickness ratio of the first absorbent core 1 to the second absorbent core 2 is 1:2 to 1:1.

The thickness ratio of the first absorbent core 1 to the second absorbent core 2 can be adjusted according to actual use requirements, so that good air permeability can be maintained while the liquid absorption performance of the absorbent core is maximized, for example: the thickness ratio of the first absorbent core 1 to the second absorbent core 2 is generally adjusted between 1:1.5 and 1:1; whereas the absorbent core of the overnight sanitary napkin generally adjusts the thickness ratio of the first absorbent core 1 to the second absorbent core 2 between 1:2 and 1:1.5; the diaper is required to absorb a large amount of liquid, so that the thickness ratio of the first absorbent core 1 to the second absorbent core 2 is generally adjusted to 1:2 by the absorbent core.

As one of the preferred embodiments of the present utility model, the width ratio of the absorption groove 4 to the first absorbent core 1 is 1:10-1:2.

The absorption tank 4 of the present utility model has the functions of preventing side leakage, accelerating liquid absorption, etc., and in actual use, different types of absorbent sanitary articles have different properties such as fluidity, viscosity, etc. of the liquid to be absorbed, and the width of the absorption tank 4 can be changed by adjusting the length of the second absorbent core 2, so as to adapt to different use situations, for example: the sanitary towel adopts an absorption core body, wherein the width of the absorption groove 4 is larger, and the width ratio of the absorption groove 4 to the first absorption core 1 is generally 1:5-1:2; the absorbent core used in the diaper has a smaller width of the absorbent slot 4, and generally has a width ratio of the absorbent slot 4 to the first absorbent core 1 of 1:10-1:4.

As one of the preferred embodiments of the present utility model, as shown in fig. 6, the first absorbent core 1 is provided at both longitudinal ends thereof with a plurality of cross cuts 5 parallel to each other, each of the cross cuts 5 extending transversely to both ends on the longitudinal centerline of the first absorbent core 1.

When the liquid amount is large, the absorbent core body can not quickly absorb all the liquid into the interior, the liquid can longitudinally flow to the top of the transverse opening 5 along the surface of the absorbent core body under the guidance of the absorption groove 4, the transverse opening 5 can block the liquid from flowing, and the transverse opening 5 can absorb the liquid into the interior according to the capillary action, and then the liquid can be diffused in the first absorbent core 1, so that the liquid can be prevented from longitudinally flowing out of the absorbent core body along the absorbent core body when the liquid amount is large.

Further, as shown in fig. 7, the liquid inside the absorbent core in which the cross cut 5 is not provided rapidly diffuses to both longitudinal ends of the first absorbent core 1, and the liquid diffusion is not uniform, thereby affecting the effect of the absorbent core in subsequent liquid absorption; the utility model is provided with a plurality of transverse cuts 5 with the lengths gradually increasing from the center to the longitudinal edges of the first absorbent core 1, when liquid is diffused to the transverse cuts 5 nearest to the absorption groove 4, the transverse cuts 5 can delay the continuous longitudinal diffusion of the liquid, guide the liquid to gradually and transversely diffuse, prevent the liquid from leaking out from the longitudinal edges of the absorbent core, and simultaneously ensure that the liquid is distributed more uniformly in the first absorbent core 1, so that the absorbent core keeps good effect of absorbing the liquid.

As one of the preferred embodiments of the present utility model, the first absorbent core 1 is composed of an inner first core 11 and a first surface layer 12 coated on the surface of the first core 11, and the second absorbent core 2 is composed of an inner second core 21 and a second surface layer 22 coated on the surface of the second core 21.

The first core 11 and the second core 21 are both made of polymer materials with strong liquid absorption performance such as fluff pulp or water-absorbent resin, and the polymers in the first core 11 and the second core 21 are longitudinally distributed, so that the liquid can be quickly absorbed and longitudinally diffused; the first surface layer 12 and the second surface layer 22 are preferably made of spun-laced non-woven fabrics, and the spun-laced non-woven fabrics have the advantages of good water absorption, air permeability, softness and the like, so that the liquid absorption performance, air permeability, comfort and the like of the absorbent core are further improved, and fibers in the first surface layer 12 and the second surface layer 22 are longitudinally distributed, so that the performance of longitudinally diffusing liquid is enhanced.

As shown in fig. 8, as one of the preferred embodiments of the present utility model, the surface of the folded portion 3 is provided with a plurality of absorption holes 6, each absorption hole 6 communicates the top surface of the folded portion 3 with the top surface of the first absorbent core 1, and the aperture of each absorption hole 6 is 0.1-5mm.

The absorption holes 6 can improve the liquid absorption speed of the folding part 3, the liquid fluidity, viscosity and other properties of the absorption needed by different types of absorbent sanitary articles in actual use are different, the aperture of the absorption holes 6 can be adjusted to adapt to different use scenes, the aperture of the absorption holes 6 of the absorbent core used by the sanitary towel is larger, and the aperture of the absorption holes 6 is usually 1-5mm; the absorbent core of the diaper can be adjusted according to the requirements, and the aperture of the absorption hole 6 is usually 0.1-5 mm.

Further, when the folded portion 3 is pressed by an external force, the absorbing hole 6 may play a role in buffering deformation of the folded portion 3, so that elasticity and softness of the folded portion 3 may be improved, and comfort of the absorbent core may be improved.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (8)

1. An absorbent core structure for adjustably reinforcing an absorbent region, comprising a first absorbent core (1), characterized in that: the utility model discloses a disposable absorbent core, including first absorbent core (1), second absorbent core (2), first absorbent core (1) length direction is vertical, width direction is horizontal, first absorbent core (1) bottom is equipped with second absorbent core (2), second absorbent core (2) length direction both ends all are equipped with folding portion (3), every folding portion (3) follow first absorbent core (1) lateral edge outwards extends the back follow first absorbent core (1) lateral edge through folding once at least with first absorbent core (1) top surface butt, two the tip that folding portion (3) are relative with first absorbent core (1) top forms an absorption groove (4).

2. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the first absorbent core (1) is internally provided with fibers distributed along the longitudinal direction, and the distribution directions of the fibers in the second absorbent core (2) and the folded part (3) are the same as the distribution direction of the fibers in the first absorbent core (1).

3. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the ratio between the width of the second absorbent core (2) and the length of the first absorbent core (1) is 1:4-1:2.

4. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the thickness ratio of the first absorbent core (1) to the second absorbent core (2) is 1:2-1:1.

5. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the width ratio of the absorption groove (4) to the first absorption core (1) is 1:10-1:2.

6. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the two longitudinal ends of the first absorbent core (1) are respectively provided with a plurality of mutually parallel transverse cuts (5), and each transverse cut (5) transversely extends to the two ends on the longitudinal midline of the first absorbent core (1).

7. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the first absorption core (1) is composed of a first core body (11) inside and a first surface layer (12) coated on the surface of the first core body (11), and the second absorption core (2) is composed of a second core body (21) inside and a second surface layer (22) coated on the surface of the second core body (21).

8. The absorbent core structure of the adjustably reinforced absorbent area of claim 1, wherein: the surface of the folding part (3) is provided with a plurality of absorption holes (6), each absorption hole (6) is communicated with the top surface of the folding part (3) and the top surface of the first absorption core (1), and the aperture of each absorption hole (6) is 0.1-5mm.