CN211326180U

CN211326180U - Core body for hygienic product

Info

Publication number: CN211326180U
Application number: CN201921639658.1U
Authority: CN
Inventors: 金昌飞; 吕庆; 李新旭; 尹强
Original assignee: Anqing Hengchang Machinery Co Ltd
Current assignee: Anqing Hengchang Machinery Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-25
Anticipated expiration: 2029-09-29

Abstract

The utility model belongs to the technical field of disposable absorbing products, in particular to a core body for sanitary products, which comprises an upper layer material, a middle water absorbing layer and a lower layer material, wherein the middle water absorbing layer comprises one or more layers of materials compounded with high polymer water absorbing resin, and the upper layer material, the middle water absorbing layer and the lower layer material are compounded to form the core body; the core body is provided with a diversion groove, the middle water absorption layer at the diversion groove does not contain high-molecular water-absorbent resin, the diversion groove comprises a main diversion groove, sub diversion grooves and tail diversion grooves, the main diversion groove is positioned in the middle of the core body and is continuously arranged along the longitudinal direction of the core body, the tail diversion grooves are positioned at two ends of the core body, the tail diversion grooves are communicated with the main diversion groove and are positioned at two sides of the main diversion groove, and the sub diversion grooves are positioned at two sides of the main diversion groove. Has the advantages that: the utility model discloses a setting of leading guiding gutter and tail guiding gutter, liquid can be fast by drainage to the core both ends, improves the core utilization ratio.

Description

Core body for hygienic product

Technical Field

The utility model belongs to the technical field of disposable absorbent article, especially, relate to a core for health supplies.

Background

The absorption core is the most important component of disposable absorption products, and the absorption cores on the market are mostly divided into two types, namely a cotton core, which is formed by wrapping fluff pulp and SAP (super absorbent polymer) by dust-free paper or hydrophilic cloth. The other is a composite core body which generally consists of two outermost non-woven fabrics and a middle water absorption layer.

Consumers of absorbent articles are now demanding thinner absorbent articles. To meet these requirements, manufacturers are reducing the thickness of absorbent articles by making composite cores. In the prior art, the composite core body is mostly made of an upper layer material, a middle water absorption layer and a lower layer material. The upper layer material, the middle water absorption layer and the lower layer material of the absorption core body are generally compounded together by adopting adhesive. Although the resulting absorbent cores are thinner, their performance is deficient. The method has the following defects: firstly, the surface formed by the manufactured polymer composite core body after absorbing liquid is uneven because the polymer resin cannot be uniformly combined with the bulky non-woven fabric, and a user feels uncomfortable when the utilization rate of the core body is low; secondly, the longitudinal permeation speed of the liquid from the surface layer to the bottom layer and the longitudinal and transverse diffusion speeds along the composite absorption core body are low, so that the liquid is locally accumulated excessively to cause side leakage or flooding; thirdly, the composite core body has the phenomena of lump formation, fault and the like after the liquid absorption polymer of the composite core body expands.

In conclusion, the technical problems of the existing composite core body are that the composite absorption core body is slow in transverse and longitudinal diffusion speed, slow in absorption speed, large in back seepage amount, low in core body utilization rate, uncomfortable for a user to wear after absorbing liquid and the like.

SUMMERY OF THE UTILITY MODEL

For the problem that the compound core diffusion efficiency that solves prior art existence is poor and the utilization ratio is low, the utility model provides a core for health supplies, simple structure, improvement liquid diffusion efficiency, improvement liquid absorption efficiency, improvement comfort and core utilization ratio of wearing.

In order to solve the technical problem, the utility model adopts the following technical scheme that the core body for the hygienic product comprises an upper layer material, a middle water absorption layer and a lower layer material, wherein the middle water absorption layer comprises one or more layers of materials compounded with high polymer water absorption resin, and the upper layer material, the middle water absorption layer and the lower layer material are compounded to form the core body; the core is provided with a diversion groove, the middle water absorption layer at the diversion groove does not contain high-molecular water-absorbing resin, the diversion groove comprises a main diversion groove, a sub diversion groove and a tail diversion groove, the main diversion groove is positioned in the middle of the core and is arranged along the longitudinal direction of the core in a continuous manner, the tail diversion grooves are positioned at two ends of the core, the tail diversion groove is communicated with the main diversion groove and positioned at two sides of the main diversion groove, and the sub diversion grooves are positioned at two sides of the main diversion groove.

Preferably, the tail diversion trench and the main diversion trench are combined in a Y shape. The liquid can be drained to the two ends of the core body quickly, the utilization rate of the core body is improved, and the production cost is reduced.

Preferably, the tail guide groove is perpendicular to the main guide groove. The production and manufacturing are convenient, liquid can be quickly drained to the two ends of the core body, the utilization rate of the core body is improved, and the production cost is reduced.

Preferably, the sub-channels are distributed continuously. The production and the manufacture are convenient, and the diffusion speed of the liquid in the longitudinal direction of the core body is further improved.

Preferably, the sub-channels are distributed at intervals. Further improving the diffusion speed of the liquid in the longitudinal direction and the transverse direction of the core body.

Preferably, the sub diversion trench is communicated with the main diversion trench. Further improving the diffusion speed of the liquid in the transverse direction of the core.

Preferably, the sub diversion trench is perpendicular to the main diversion trench. The production and the manufacture are convenient, and the transverse diffusion speed of the liquid in the core body is further improved.

Preferably, the two sides of the lower layer material are wider than the two sides of the middle water-absorbing layer and the upper layer material, and the two sides of the lower layer material are folded upwards to form folding edges for covering the two sides of the upper layer material.

Preferably, the upper layer material, the middle water absorbing layer and the lower layer material at the diversion trench are compounded in one or more modes of hot pressing, adhesive bonding or ultrasonic wave pressing. After the core body absorbs liquid, the area around the flow guide groove can still keep the state before absorbing liquid when expanding, a flow guide channel is formed, the cross section area of the flow guide groove is increased along with the expansion of the area around the flow guide groove, and a better flow guide effect can be achieved.

Preferably, the flow guide grooves are symmetrical about a longitudinal center line of the core, and the flow guide grooves are symmetrical about a transverse center line of the core. The flow guide is uniform.

Has the advantages that:

1) the core body for the sanitary article of the utility model has the advantages that the flow guide groove plays a role in fixing after the core body is subjected to liquid absorption expansion for one time or multiple times, and the core body is ensured not to have the phenomena of lump formation and the like after the core body is subjected to liquid absorption for multiple times;

2) the core body for the sanitary product of the utility model is provided with the flow guide grooves, the core body has excellent longitudinal diffusion, transverse diffusion and permeability, and the liquid suction speed is greatly improved;

3) the utility model discloses a core for health supplies, the setting of the continuous main diversion trench of the longitudinal center line department of core to and the setting of the tail diversion trench at main diversion trench both ends, make the regional utilization in core both ends more abundant, liquid can be drained to the core both ends fast, improve the core utilization ratio, reduction in production cost;

4) the utility model discloses a core for health supplies, the regional polymer water-absorbent resin that does not contain of water conservancy diversion slot, the peripheral regional inflation of water conservancy diversion slot after the core is through imbibition once or many times, and water conservancy diversion slot cross-sectional area increases, can play better water conservancy diversion effect.

Drawings

Fig. 1 is a schematic perspective view of a core body for a sanitary product according to embodiment 1 of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

fig. 3 is a schematic perspective view of the core for sanitary products of embodiment 2 of the present invention;

fig. 4 is a schematic perspective view of the core for sanitary products of embodiment 3 of the present invention;

in the figure: 1. the water-absorbing material comprises an upper layer material, 2 parts of a middle water-absorbing layer, 21 parts of high-molecular water-absorbing resin, 3 parts of a lower layer material, 31 parts of folded edges, 4 parts of flow guide grooves, 41 parts of main flow guide grooves, 42 parts of sub flow guide grooves, 43 parts of tail flow guide grooves.

Detailed Description

Example 1

As shown in fig. 1 and fig. 2, a core for a sanitary product comprises an upper layer material 1, an intermediate water-absorbing layer 2 and a lower layer material 3, wherein the intermediate water-absorbing layer 2 comprises one or more layers of materials compounded with a high molecular water-absorbing resin 21, the intermediate water-absorbing layer 2 of the embodiment can be formed by compounding two layers of non-woven fabrics with the high molecular water-absorbing resin 21, and the upper layer material 1, the intermediate water-absorbing layer 2 and the lower layer material 3 are compounded to form the core; in order to prevent leakage of liquid and macromolecule resin in the production process, two sides of the lower layer material 3 are wider than two sides of the middle water absorption layer 2 and the upper layer material 1, and two sides of the lower layer material 3 are folded upwards to form folded edges 31 for covering two sides of the upper layer material 1;

the core body is provided with a flow guide groove 4, the middle water absorbing layer 2 at the position of the flow guide groove 4 does not contain high molecular water absorbing resin 21, the upper layer material 1, the middle water absorbing layer 2 and the lower layer material 3 at the position of the flow guide groove 4 are compounded by one or more modes of hot pressing, adhesive bonding or ultrasonic wave pressing, the guide groove 4 comprises a main guide groove 41, a sub guide groove 42 and a tail guide groove 43, the main guide groove 41 is positioned in the middle of the core body, and is continuously arranged along the longitudinal direction of the core, the length of the main runner 41 is smaller than that of the core, the tail guide grooves 43 are positioned at two ends of the core body, the tail guide grooves 43 are communicated with the main guide grooves 41, and are located at both sides of the main diversion trench 41, the tail diversion trench 43 of the present embodiment is combined with the main diversion trench 41 in a Y-shape, the sub diversion trenches 42 are located at two sides of the main diversion trench 41, and the sub diversion trenches 42 of this embodiment are distributed continuously;

the flow guide grooves 4 are symmetrical about the longitudinal center line of the core, and the flow guide grooves 4 are symmetrical about the transverse center line of the core.

The working principle is as follows:

when the core absorbs liquid, the liquid rapidly flows along the longitudinal direction of the core along the main diversion trench 41 and is guided to the two ends of the core through the tail diversion trench 43, so that the diffusion efficiency of the core and the utilization rate of the core are improved; when the core body absorbs liquid, the liquid flows along the sub-diversion trenches 42 in the longitudinal direction of the core body, so that the diffusion efficiency of the core body and the utilization rate of the core body are further improved; after the core body absorbs liquid, the peripheral area of the flow guide groove 4 expands, the cross section area of the flow guide groove 4 is increased, and a better flow guide effect can be achieved; this a core for health supplies, liquid is at compound core vertical with horizontal diffusion rate fast, liquid can not accumulate too much at the part and lead to the side leakage or flood, this a core for health supplies is level and smooth at the face that forms after absorbing liquid, the user feels comfortable when the core high-usage, water conservancy diversion slot 4 plays the fixed action after the core is once or imbibition inflation many times, guarantees that the core can not have the phenomenon such as the fault that sticks together after imbibition many times.

Example 2

As shown in fig. 3, in this embodiment, the difference from embodiment 1 is that the sub-channels 42 are distributed at intervals, which can further increase the diffusion speed of the liquid in the transverse direction of the core.

Example 3

As shown in fig. 4, in the present embodiment, the difference from embodiment 1 is that the tail guide groove 43 is perpendicular to the main guide groove 41; the sub-guiding grooves 42 are communicated with the main guiding groove 41, and the sub-guiding grooves 42 are perpendicular to the main guiding groove 41, that is, the sub-guiding grooves 42 and the tail guiding grooves 43 have the same shape, so that the diffusion speed of the liquid in the transverse direction of the core body can be further improved.

Claims

1. A core for a sanitary product, characterized in that: the water-absorbing core comprises an upper layer material (1), a middle water-absorbing layer (2) and a lower layer material (3), wherein the middle water-absorbing layer (2) comprises one or more layers of materials compounded with high-molecular water-absorbing resin (21), and the upper layer material (1), the middle water-absorbing layer (2) and the lower layer material (3) are compounded to form a core body; be provided with water conservancy diversion slot (4) on the core, the middle layer (2) that absorbs water of water conservancy diversion slot (4) department does not contain polymer water-absorbing resin (21), water conservancy diversion slot (4) are including leading guiding gutter (41), sub-guiding gutter (42) and tail guiding gutter (43), leading guiding gutter (41) is located the middle part of core, and follows the longitudinal continuous setting of core, tail guiding gutter (43) are located the both ends of core, just tail guiding gutter (43) and leading guiding gutter (41) intercommunication to be located the both sides of leading guiding gutter (41), sub-guiding gutter (42) are located the both sides of leading guiding gutter (41).

2. The core for sanitary products according to claim 1, wherein: the tail guide groove (43) and the main guide groove (41) are combined in a Y shape.

3. The core for sanitary products according to claim 1, wherein: the tail guide groove (43) is perpendicular to the main guide groove (41).

4. A core for a sanitary product according to claim 1, 2 or 3, wherein: the sub guide grooves (42) are distributed continuously.

5. A core for a sanitary product according to claim 1, 2 or 3, wherein: the sub diversion trenches (42) are distributed at intervals.

6. A core for a sanitary product according to claim 1, 2 or 3, wherein: the sub diversion trenches (42) are communicated with the main diversion trench (41).

7. The core for sanitary products of claim 6, wherein: the sub diversion trenches (42) are perpendicular to the main diversion trench (41).

8. The core for sanitary products according to claim 1, wherein: the two sides of the lower layer material (3) are wider than the two sides of the middle water absorbing layer (2) and the upper layer material (1), and the two sides of the lower layer material (3) are folded upwards to form folded edges (31) used for covering the two sides of the upper layer material (1).

9. The core for sanitary products according to claim 1, wherein: the upper layer material (1), the middle water absorbing layer (2) and the lower layer material (3) at the position of the flow guide groove (4) are compounded in one or more modes of hot pressing, adhesive bonding or ultrasonic wave pressing.

10. The core for sanitary products according to claim 1, wherein: the flow guide grooves (4) are symmetrical about the longitudinal center line of the core body, and the flow guide grooves (4) are symmetrical about the transverse center line of the core body.