CN215273947U - Flow guide hole type absorption core body - Google Patents

Abstract

The utility model relates to a disposable hygienic articles field especially relates to a water conservancy diversion cellular type absorbs core, including absorbing the core body, the direction of defining along absorbing core body length both ends extension is vertical, it includes from last to water conservancy diversion layer, absorbed layer and the bottom that sets gradually down to absorb the core body, the water conservancy diversion layer includes the hot-blast non-woven fabrics of main ES and connects respectively in the hot-blast non-woven fabrics of supplementary ES at the vertical both ends of the hot-blast non-woven fabrics of main ES, the MD CD of the fibre web of the hot-blast non-woven fabrics of main ES is 6.50 0.25, the MD CD of the fibre web of the hot-blast non-woven fabrics of supplementary ES is 4.00 0.25. The front leakage or the rear leakage caused by the continuous diffusion and irradiation of the body fluid of the flow guide layer can be effectively avoided.

Description

Flow guide hole type absorption core body

Technical Field

The utility model relates to a disposable hygienic articles field especially relates to a core is absorbed to water conservancy diversion cellular type.

Background

Disposable sanitary products such as diapers and sanitary napkins are known in their structure, and the absorbent core thereof generally comprises a fluid-guiding layer, a bottom layer, and an absorbent layer disposed between the fluid-guiding layer and the bottom layer, wherein a super absorbent resin is disposed in the absorbent layer. The absorption core in the prior art mostly increases the absorption capacity, neglects the diffusion speed of body fluid after reaching the flow guide layer, and because in the use process, when a large amount of body fluid reaches the flow guide layer at the same time, the body fluid which is absorbed by the absorption core cannot permeate down until can be diffused along the longitudinal direction of the flow guide layer, and front leakage or back leakage is caused.

In view of this, how to provide a flow guide effect for further optimizing the absorption core of the disposable sanitary product so as to improve the service performance of the disposable sanitary product, satisfy the expectations of people for higher quality of the present disposable sanitary product, and is a problem that needs to be solved urgently by researchers of the present disposable sanitary product.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above problems, the present invention provides a flow guiding hole type absorbing core body, which effectively prevents the body fluid on the flow guiding layer from leaking before or after the body fluid continues to be irradiated along the longitudinal diffusion.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a water conservancy diversion cellular type absorbs core, includes and absorbs the core body, and the direction that the definition extends along absorbing core body length both ends is vertical, absorb the core body and include from last water conservancy diversion layer, absorbed layer and the bottom that sets gradually down, the water conservancy diversion layer includes the hot-blast non-woven fabrics of main ES and connects respectively in the hot-blast non-woven fabrics of supplementary ES of the vertical both ends of the hot-blast non-woven fabrics of main ES, the MD/CD of the fibre web of the hot-blast non-woven fabrics of main ES is 6.50 +/-0.25, the MD/CD of the fibre web of the hot-blast non-woven fabrics of supplementary ES is 4.00 +/-0.25.

In a further improvement, the length of each auxiliary ES hot-air non-woven fabric is 1/7-1/5 of the length of the absorption core body.

The main ES hot-air non-woven fabric and the auxiliary ES hot-air non-woven fabric are compounded into a whole through hot pressing.

Further improved, the upper surface of the main ES hot-air non-woven fabric protrudes upwards to form an arc-shaped bulge.

In a further improvement, a plurality of absorption holes are arranged on the absorption layer at intervals.

In a further development, the absorption holes penetrate the absorption layer.

By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a guiding layer is through adopting the hot-blast non-woven fabrics of main ES and assisting the hot-blast non-woven fabrics cooperation of ES, wherein, the MD CD of the fibre web of the hot-blast non-woven fabrics of main ES is 6.50 +/-0.25, makes the longitudinal fiber of fibre web arrange more, and such structure makes the body fluid easily along guiding layer longitudinal diffusion, has avoided the absorption core because of the saturation phenomenon that local absorption reaches, reduces the absorption core simultaneously and returns the infiltration volume, makes skin keep dry and comfortable; the MD/CD of the fiber web of the auxiliary ES hot-air non-woven fabric is 4.00 +/-0.25, so that the longitudinal and transverse fibers of the fiber web are uniformly arranged, the structure ensures that body fluid is easy to vertically permeate downwards, the longitudinal diffusion of the body fluid is slowed down, and the body fluid of the flow guide layer is effectively prevented from continuously diffusing along the longitudinal direction to form front leakage or back leakage; the length of each auxiliary ES hot-air non-woven fabric is 1/7-1/5, preferably 1/6 of the length of the absorption core body, the proportion is reasonable, and the using effect is optimal; the main ES hot-air non-woven fabric and the auxiliary ES hot-air non-woven fabric are compounded into a whole through hot pressing, so that the processing is convenient, and the main ES hot-air non-woven fabric and the auxiliary ES hot-air non-woven fabric are compounded into a whole with the absorption layer; the upper surface of the main ES hot air non-woven fabric protrudes upwards to form an arc-shaped bulge, so that the absorption area of the diversion layer is increased, and the bonding area of the diversion layer and the skin is reduced at the same time, so that the skin is kept dry and comfortable; the absorption holes are arranged at intervals on the absorption layer, so that the super absorbent resin on the absorption layer can expand to the adjacent absorption holes after absorbing body fluid, and the expansion space of the super absorbent resin is increased, thereby greatly improving the utilization of the super absorbent resin in the absorption layer; the absorption hole runs through the absorption layer, and when body fluid can not be absorbed on the upper surface of the absorption layer in time, the body fluid can be guided to the lower surface of the absorption layer through the absorption hole to be absorbed again, so that the absorption speed is effectively accelerated, and meanwhile, the air permeability of the absorption core body can be improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a web of a main ES hot-air nonwoven fabric according to an embodiment of the present invention;

FIG. 3 is a schematic view of a web structure of an ES-assisted hot-air nonwoven fabric according to an embodiment of the present invention.

Icon:

1. a flow guiding layer; 11. a main ES hot air non-woven fabric; 111. an arc-shaped bulge; 12. auxiliary ES hot air non-woven fabric; 2. an absorbing layer; 21. an absorption hole; 3. a bottom layer.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 3, the present embodiment provides a flow-guiding hole type absorbent core, which comprises an absorbent core body defining a longitudinal direction extending along two ends of the length of the absorbent core body, wherein the absorbent core body comprises a flow-guiding layer 1, an absorbent layer 2 and a bottom layer 3 arranged in sequence from top to bottom.

Wherein, the flow guide layer 1 comprises a main ES hot-air non-woven fabric 11 and auxiliary ES hot-air non-woven fabrics 12 respectively connected with the two longitudinal ends of the main ES hot-air non-woven fabric 11, concretely, the two auxiliary ES hot-air non-woven fabrics 12 are respectively arranged above the two ends of the main ES hot-air non-woven fabric 11 and are compounded into a whole by hot pressing, the length of each auxiliary ES hot-air non-woven fabric 12 is 1/6 of the length of the absorption core body, the MD/CD of the fiber web of the main ES hot-air non-woven fabric 11 is 6.50, so that the longitudinal fiber arrangement of the fiber web is more, the structure ensures that body fluid is easy to diffuse longitudinally along the flow guide layer 1, avoids the saturation phenomenon of the absorption core body caused by local absorption, reduces the back permeation amount of the absorption core body, keeps the skin dry, and ensures that the longitudinal and transverse fiber arrangement of the fiber web of the auxiliary ES hot-air non-woven fabrics 12 is more uniform, and the structure ensures that the body fluid is easy to permeate vertically downwards, the longitudinal diffusion of the body fluid is slowed down, and the body fluid of the flow guide layer 1 is effectively prevented from continuously diffusing along the longitudinal direction to form front leakage or back leakage.

In this embodiment, the upper surface of the main ES hot air non-woven fabric 11 protrudes upward to form an arc protrusion 111, so that the absorption area of the flow guide layer 1 is increased, and the attachment area of the flow guide layer and the skin is reduced, so that the skin is kept dry and comfortable.

In this embodiment, a plurality of absorption holes 21 are formed at intervals on the absorption layer 2, and the absorption holes 21 penetrate through the absorption layer 2, so that the super absorbent resin on the absorption layer 2 can expand to the adjacent absorption holes 21 after absorbing body fluid, and the expansion space of the super absorbent resin is increased, thereby greatly improving the utilization of the super absorbent resin in the absorption layer 2; moreover, when the body fluid is not ready to be absorbed on the upper surface of the absorption layer 2, the body fluid can flow from the absorption holes 21 to the lower surface of the absorption layer 2 for re-absorption, thereby effectively accelerating the absorption speed and simultaneously improving the air permeability of the absorption core body.

The MD/CD of the fiber web of the main ES hot air non-woven fabric 11 can also be 6.50 ± 0.25, the MD/CD of the fiber web of the auxiliary ES hot air non-woven fabric 12 can also be 4.00 ± 0.25, and the length of each auxiliary ES hot air non-woven fabric 12 can also be 1/7-1/5 of the length of the absorption core body, so that the purpose of the utility model can be achieved.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

While the invention has been particularly 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 spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. A flow-through-hole absorbent core comprising an absorbent core body defining a longitudinal direction extending along both ends of the length of the absorbent core body, characterized in that: the absorbing core body comprises a flow guide layer, an absorbing layer and a bottom layer which are sequentially arranged from top to bottom, wherein the flow guide layer comprises a main ES hot air non-woven fabric and auxiliary ES hot air non-woven fabrics which are respectively connected to the two longitudinal ends of the main ES hot air non-woven fabric, the MD/CD of the fiber web of the main ES hot air non-woven fabric is 6.50 +/-0.25, and the MD/CD of the fiber web of the auxiliary ES hot air non-woven fabric is 4.00 +/-0.25.

2. A flow-through-hole absorbent core according to claim 1, wherein: the length of each auxiliary ES hot-air non-woven fabric is 1/7-1/5 of the length of the absorption core body.

3. A flow-through-hole absorbent core according to claim 1, wherein: the main ES hot-air non-woven fabric and the auxiliary ES hot-air non-woven fabric are compounded into a whole through hot pressing.

4. A flow-through-hole absorbent core according to any of claims 1 to 3, wherein: the upper surface of the main ES hot air non-woven fabric protrudes upwards to form an arc-shaped bulge.

5. A flow-through-hole absorbent core according to claim 4, wherein: a plurality of absorption holes are arranged on the absorption layer at intervals.

6. A flow-through-hole absorbent core according to claim 5, wherein: the absorption holes penetrate through the absorption layer.

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