CN110179594A - A kind of absorption-type core - Google Patents

Abstract

The present invention relates to amenities technical fields, a kind of absorption-type core, including core ontology are disclosed, core ontology includes surface layer, absorbed layer and bottom, surface layer is equipped with groove along core body length direction, and core ontology is gradually reduced from the center to the thickness at both ends along its length.The present invention is arranged using groove along core body length direction, after urine drops on paper diaper, by groove the guiding in core body length direction can be carried out to urine, the urine at middle part is set to be diffused rapidly to both ends, increase the absorption length of core ontology entirety, to improve the absorption efficiency of core, urine is avoided to concentrate on influencing its absorption efficiency in the middle part of core ontology.

Description

An absorbent core structure

technical field

The invention relates to the technical field of sanitary products, in particular to an absorbent core structure.

Background technique

At present, the use of diapers is becoming more and more widespread, not only for infants and young children, but also for adults with diseases or people who cannot defecate independently. For diapers, the core key technology is the core structure, which directly determines the performance of diapers in many aspects, such as: absorbency, air permeability, stability, etc.

After the existing diapers are used, the diffusion length of urine generally does not exceed 60% of the core length of the product, resulting in low absorption efficiency of the diapers, which cannot achieve the dry effect of the surface layer in contact with the skin, causing inconvenience to the user. comfortability.

Contents of the invention

The purpose of the present invention is to provide an absorbent core structure to solve the problem of low absorption efficiency of the existing diaper core.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

An absorbent core structure, comprising a core body, the core body includes a surface layer, an absorption layer and a bottom layer, the surface layer is provided with grooves along the length direction of the core body body, and the core body body is arranged along the length direction from the center to both ends The thickness gradually decreases.

Compared with prior art, principle of the present invention and beneficial effect:

1. Set the groove, and use the groove to set along the length of the core body. When the urine drips onto the diaper, the urine can be guided along the length of the core body through the groove, so that the urine in the middle can Rapid diffusion to both ends increases the overall absorption length of the core body, thereby improving the absorption efficiency of the core body and avoiding the concentration of urine in the middle of the core body and affecting its absorption efficiency.

2. The thickness of the core body gradually decreases from the center to both ends along the length direction. Usually, when the diaper is used, the user's urethral opening is generally located in the middle of the core body, and this area is the first to absorb urine. part, setting the thickness of this part to the maximum can increase the absorption of urine and shorten the time that urine stays on the surface layer in this area, so as to achieve the effect of making the surface layer dry; and the thickness of the two ends of the core body is set To the minimum, because the amount of urine reaching the two ends of the core body is less than the amount at the center of the core body through diffusion, so the effect of reducing product cost can be achieved.

Further, the absorbent layer has a fluid guiding channel along the length direction of the core body, and the fluid guiding channel is located directly below the groove. When the urine reaches the core body, it usually reaches the middle of the surface layer first. Due to the grooves, the urine will flow to the grooves and spread along the grooves to the length of the core body; after the urine reaches the surface layer, it will Down into the absorbent layer, and the absorbent layer below the groove is provided with a liquid guide channel. On the one hand, the urine in the groove can be quickly introduced into the absorbent layer, which promotes the diffusion of urine and improves the absorption efficiency of the absorbent layer. Avoid the accumulation of urine in the groove. On the other hand, because the fluid guide channel is also arranged along the length of the core body, the urine in the middle can be quickly spread to both ends, increasing the absorption of urine by the core as a whole. length, thereby increasing the absorbency of the core and avoiding the accumulation of urine in the middle of the core.

Further, a flow guide hole is opened in the middle of the absorbing layer. Utilizing the diversion holes, the absorbent layer can quickly absorb urine and reduce the accumulation of urine in the middle of the core body, thereby keeping the middle of the surface layer dry and improving the user's comfort.

Further, the absorbent layer includes an upper absorbent layer and a lower absorbent layer. The absorbing effect on urine is improved by setting the absorbing layer with a double-layer structure.

Further, an upper groove is formed on the bottom of the upper absorbent layer, and a lower groove matched with the upper groove is formed on the top of the lower absorbent layer, and the upper groove and the lower groove are combined to form a flow guide cavity. A diversion chamber is formed between the upper absorbent layer and the lower absorbent layer. When the urine enters the absorbent layer, it will be absorbed by the absorbent layer. At the same time, the urine will enter the diversion chamber and flow quickly in the diversion chamber, thereby It is convenient for the absorbent layer to further absorb urine and improve the absorption efficiency and absorption capacity of the absorbent layer; in addition, because the diversion cavity is a closed cavity and is not connected with the surface layer, it can also prevent urine from seeping back, thereby ensuring the surface The layer has better dryness.

Further, there is a flow channel in communication between the liquid guiding channel and part of the guiding cavity. The fluid guide channel is connected with part of the diversion cavity through the flow channel. When there is a lot of urine in the fluid guide channel, it can enter the diversion cavity through the flow channel, or when there is a lot of urine in the diversion cavity, it can pass through the flow channel. Into the liquid guide channel to promote the dispersion of urine, improve the absorption of urine by the absorbent layer, thereby increasing the overall absorption length of the core for urine, thereby improving the absorption capacity of the core and avoiding the accumulation of urine in the middle of the core Case.

Further, the upper absorbent layer is coated with a first super absorbent resin, and the lower absorbent layer is coated with a second super absorbent resin, the water absorption of the first super absorbent resin is better than that of the second super absorbent resin, the second super absorbent resin Water retention is better than the first super absorbent resin. Urine is absorbed through the first superabsorbent resin in the upper absorbent layer, and then the urine in the upper absorbent layer is absorbed through the second superabsorbent resin in the lower absorbent layer to reduce the urine in the upper absorbent layer, On the one hand, the upper absorbent layer can continue to continuously absorb the urine diffused from the surface layer, and on the other hand, the urine is as far away from the surface layer as possible, which can improve the dryness of the surface layer, thereby increasing the comfort of the user.

Further, the surface layer is non-woven fabric. The non-woven fabric with fast penetration improves the dryness of the surface layer.

Further, the bottom layer is dust-free paper. The use of dust-free paper with good diffusivity can promote the diffusion of urine to the overall core body, thereby increasing the effective use length of the core body and reducing product costs.

Description of drawings

FIG. 1 is a schematic diagram of a front view structure of Embodiment 1 of the present invention;

2 is a schematic cross-sectional view of the core body in Embodiment 1 of the present invention;

Fig. 3 is a schematic longitudinal sectional view of the core body in Embodiment 1 of the present invention;

Fig. 4 is a front structural schematic view of the core body in Embodiment 2 of the present invention;

Fig. 5 is a schematic cross-sectional view of the core body in Embodiment 2 of the present invention.

Detailed ways

The following is further described in detail through specific implementation methods:

The reference signs in the accompanying drawings of the description include: core body 1, surface layer 2, bottom layer 3, upper absorbent layer 4, lower absorbent layer 5, groove 6, fluid guide channel 7, diversion hole 8, diversion cavity 9 , runner 10, diaper 11.

Embodiment 1 is basically as shown in Figure 1 to Figure 3:

An absorbent core structure, comprising a core body 1. The core body 1 includes a surface layer 2, an absorption layer and a bottom layer 3 from top to bottom. The layer comprises an upper absorbent layer 4 and a lower absorbent layer 5, the upper absorbent layer 4 is coated with a first super absorbent resin, and the lower absorbent layer 5 is coated with a second super absorbent resin, the water absorption of the first super absorbent resin is better than that of the second absorbent layer. High water-absorbent resin, the water retention of the second super-absorbent resin is better than that of the first super-absorbent resin, and the bottom layer 3 adopts dust-free paper with good diffusivity. The thickness of the core body 1 gradually decreases from the center to both ends along the length direction, the surface layer 2 is provided with two symmetrically arranged grooves 6 along the length direction of the core body 1, and the absorbing layer is opened along the length direction of the core body 1. There is a liquid guiding channel 7, and the liquid guiding channel 7 is located directly below the groove 6.

During specific implementation, when the urine drips onto the diaper 11, it will enter the core body 1. Usually, the urine will first reach the middle of the surface layer 2 of the core body 1, and then spread from the middle to the surroundings. Due to the thickness of the core body 1 gradually decreasing from the center to both ends, coupled with the setting of the groove 6, an inclination angle is formed between the grooves 6 from the middle to both sides, which can promote the urine in the middle to flow into the groove 6. Diffusion, and then the urine can be guided along the length direction of the core body 1 through the groove 6, so that the urine in the middle can quickly diffuse to both ends, increasing the overall absorption length of the core body 1, thereby improving the core body. Absorption efficiency, preventing urine from concentrating in the middle of the core body 1 and affecting its absorption efficiency.

And because the liquid guide channel 7 is arranged in the absorbent layer below the groove 6, the urine that reaches the groove 6 can quickly seep underground into the liquid guide channel 7 below, and the urine that enters the liquid guide channel 7 can quickly It is absorbed by the first superabsorbent resin and the second superabsorbent resin in the absorbent layer, and improves the absorption efficiency of the absorbent layer. Simultaneously, the liquid guide channel 7 is also arranged along the length direction of the core body 1, so it can also promote the diffusion of urine from the middle to both ends, thereby increasing the absorption probability of urine by the absorbent layers at both ends, and increasing the urine absorption rate of the core body 1. The effective absorption length of the liquid, thereby improving the absorption capacity of the core body 1.

Embodiment two is basically as shown in accompanying drawing 4, Fig. 5:

The difference between this embodiment and Embodiment 1 is that two elliptical guide holes 8 are opened in the middle of the absorbent layer, an upper groove is opened at the bottom of the upper absorbent layer, and an upper groove is opened at the top of the lower absorbent layer. The lower groove, the upper groove and the lower groove are combined to form a diversion chamber 9, and the diversion chambers 9 are distributed along the length direction of the core body 1 at intervals, and a flow channel 10 is connected between the liquid diversion channel 7 and part of the diversion chamber 9 .

After the urine reaches the middle of the surface layer 2, it seeps down to the middle absorbent layer, and the diversion holes 8 can divert the urine, so that the urine can quickly diffuse into the diversion chambers 9 on both sides, thereby promoting the absorption of the upper absorbent layer 4. And the absorption of urine by the lower absorbent layer 5 can prevent urine from seeping back into the surface layer 2, thereby improving dryness. Urine that infiltrates into the absorbent layer will have a tendency to diffuse into the diversion chamber 9. After entering the diversion chamber 9, compared with absorption and diffusion, the flow speed of the urine in the diversion chamber 9 will be accelerated, thereby passing through the diversion chamber. 9. Promote the diffusion of urine in the upper absorbent layer and the lower absorbent layer, thereby improving the absorption of urine by the first superabsorbent resin and the second superabsorbent resin in the absorbent layer. When there is a lot of urine in the guide channel 7, it can enter the guide cavity 9 through the flow channel 10, or when there is a lot of urine in the guide cavity 9, it can enter the guide channel 7 through the flow channel 10, and pass through the flow guide cavity 9. The channel 10 connects the fluid guide channel 7 with the diversion cavity 9, so that the urine forms a "circulation", so as to promote the diffusion of urine to the two ends of the core body 1 in the length direction, and improve the absorption of urine by the absorbent layer, thereby increasing the The overall length of the core to absorb urine can improve the absorption capacity of the core and avoid the accumulation of urine in the middle of the core.

What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the practicability of the patent. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (10)

1. a kind of absorption-type core, including core ontology, core ontology include surface layer, absorbed layer and bottom, feature exists Be equipped with groove along core body length direction in: surface layer, core ontology along its length from the center to both ends thickness gradually Reduce.

2. a kind of absorption-type core according to claim 1, it is characterised in that: the absorbed layer is long along core ontology Degree is provided with liquid-conveying ducts on direction, and liquid-conveying ducts are located at the underface of groove.

3. a kind of absorption-type core according to claim 2, it is characterised in that: offer and lead in the middle part of the absorbed layer Discharge orifice.

4. a kind of absorption-type core according to claim 1, it is characterised in that: the absorbed layer includes upper absorbed layer With lower absorbed layer.

5. a kind of absorption-type core according to claim 4, it is characterised in that: the bottom of the upper absorbed layer is provided with Upper groove, the lower groove with upper groove cooperation is provided at the top of lower absorbed layer, and upper groove and lower groove are combined to form diversion cavity.

6. a kind of absorption-type core according to claim 5, it is characterised in that: the diversion cavity is long along core ontology Degree direction is spaced apart.

7. a kind of absorption-type core according to claim 6, it is characterised in that: the liquid-conveying ducts and part water conservancy diversion Runner is communicated between chamber.

8. a kind of absorption-type core according to any one of claims 4 to 7, it is characterised in that: the upper suction It receives layer and is coated with the first high hydroscopic resin, lower absorbed layer is coated with the second high hydroscopic resin, the water imbibition of the first high hydroscopic resin Better than the second high hydroscopic resin, the water-retaining property of the second high hydroscopic resin is better than the first high hydroscopic resin.

9. a kind of absorption-type core as claimed in any of claims 1 to 7, it is characterised in that: the surface layer For non-woven fabrics.

10. a kind of absorption-type core according to claim 9, it is characterised in that: the bottom is dust-free paper.