CN110755207A

CN110755207A - Diaper

Info

Publication number: CN110755207A
Application number: CN201811057308.4A
Authority: CN
Inventors: 厉勇
Original assignee: Jinhua Hammer Industrial Design Co Ltd
Current assignee: Jinhua Hammer Industrial Design Co Ltd
Priority date: 2018-07-27
Filing date: 2018-09-11
Publication date: 2020-02-07

Abstract

The invention relates to a diaper which comprises a bottom cloth layer, and a water locking layer, a water absorbing layer and a surface coating layer which are sequentially stacked on the bottom cloth layer, wherein the water absorbing layer is a material layer formed by wrapping first super absorbent resin and bamboo pulp fluff pulp with bamboo pulp paper, and the water locking layer is a material layer formed by wrapping second super absorbent resin and bamboo pulp fluff pulp with bamboo fiber cloth. The diaper can quickly absorb and lock urine through the synergistic effect of the water absorption layer and the water locking layer, and enhances the effects of instantly absorbing and locking the urine of the diaper, so that the urine can quickly leave the skin of a user and the surface coating layer of the diaper, the skin of the user is kept dry, and the use comfort is further improved.

Description

Diaper

Technical Field

The invention relates to the field of daily necessities, in particular to a diaper.

Background

The diaper has the advantages of simple use, side leakage prevention, seepage prevention and the like, is an indispensable daily product gradually replacing diapers, and is mainly divided into two types, namely a diaper special for infants and a diaper special for adults at present. The core of the diaper is the absorbent core layer, which is primarily used to capture and rapidly absorb urine, disperse the urine, and wick the urine throughout the core layer, ultimately absorbing and storing the urine. However, the conventional absorbent core layer of the diaper is mainly a layered structure composed of pure wood pulp (fluff pulp) and Super Absorbent Polymer (SAP), and cannot achieve the effects of rapidly absorbing and locking urine.

Disclosure of Invention

In view of the above, there is a need to provide a diaper which can absorb urine and lock the urine quickly, and is more sanitary and environmentally friendly.

The utility model provides a diaper, includes the base cloth layer and in proper order range upon range of set up in the water-locking layer, the layer and the surface coating layer of base cloth layer absorb water, the layer that absorbs water is the material layer of first super absorbent resin of bamboo pulp paper parcel and bamboo pulp fluff pulp, the water-locking layer is the material layer of bamboo fibre cloth parcel second super absorbent resin and bamboo pulp fluff pulp.

In one embodiment, the water-absorbing layer has a thickness less than the thickness of the water-locking layer.

In one embodiment, the first superabsorbent polymer resin has a 0.9% NaCl absorption capacity greater than the 0.9% NaCl absorption capacity of the second superabsorbent polymer resin.

In one embodiment, the surface coating layer comprises a surface layer and a flow guiding layer, and the flow guiding layer is arranged between the surface layer and the water absorbing layer.

In one embodiment, the surface layer is a bamboo fiber cloth layer.

In one embodiment, the fluid conducting layer is a polylactic acid layer.

In one embodiment, the base fabric layer includes a bottom layer and a breathable waterproof membrane disposed between the water-locking layer and the bottom layer.

In one embodiment, the bottom layer is a bamboo fiber cloth layer.

In one embodiment, the air-permeable, waterproof membrane is a polylactic acid membrane.

The diaper comprises the water absorption layer and the water locking layer, and can rapidly absorb and lock urine through the synergistic effect of the water absorption layer and the water locking layer, so that the effects of instantly absorbing and locking the urine of the diaper are enhanced, the urine can rapidly leave the skin of a user and the surface coating layer of the diaper, the skin of the user is kept dry, and the use comfort is further improved.

Drawings

FIG. 1 is a schematic diagram of a diaper structure according to the present invention.

In the figure: 1. a surface coating layer; 2. a water-absorbing layer; 3. a water locking layer; 4. a base cloth layer; 11. a surface layer; 12. a flow guiding layer; 41. a breathable waterproof film; 42. a bottom layer.

Detailed Description

The diaper provided by the present invention will be further described below.

As shown in fig. 1, the diaper according to the embodiment of the present invention includes a base fabric layer 4, and a water-retaining layer 3, a water-absorbing layer 2 and a surface coating layer 1 which are sequentially stacked on the base fabric layer 4, wherein the water-absorbing layer 2 is a layer of bamboo pulp paper wrapping a first super absorbent resin and bamboo pulp fluff pulp, and the water-retaining layer 3 is a layer of bamboo fiber cloth wrapping a second super absorbent resin and bamboo pulp fluff pulp.

Compared with the traditional absorption core layer, the water absorption layer 2 can rapidly absorb urine permeated from the surface coating layer 1, diffuse to the water locking layer 3 according to the material characteristics of Super Absorbent Polymer (SAP), and firmly lock the urine through the water locking layer 3, so that the effects of instantly absorbing the urine and locking the urine of the diaper are considered. Moreover, the water absorbing layer 2 and the water locking layer 3 both adopt bamboo pulp fluff pulp to replace the traditional wood pulp, and compared with wood pulp, the bamboo pulp fluff pulp has better water absorption and flexibility, so the urine absorbent pad has better urine absorbing effect. The bamboo pulp fluff pulp is natural color bamboo pulp fluff pulp in consideration of safety and sanitation in use, i.e. the bamboo pulp fluff pulp is not subjected to bleaching or the like.

In the diaper, the main function of the water-absorbing layer 2 is to rapidly absorb urine permeated from the surface coating layer 1, and the main function of the water-locking layer 3 is to store and lock the urine, so that the thickness of the water-absorbing layer 2 is smaller than that of the water-locking layer 3, and the storage capacity of the diaper can be improved. It can be understood that the water absorbing layer 2 is thin and has small volume after absorbing urine, therefore, the bamboo pulp paper can be used as a wrapping material, and is preferably wrapped by dust-free bamboo pulp paper (i.e. dust-free paper), so that the bamboo pulp paper has the advantages of high elasticity, softness, excellent hand feeling and drapability, and has extremely high water absorption and good water retention performance. And the water locking layer 3 is thicker, has larger volume after absorbing urine, can adopt bamboo fiber cloth as a wrapping material, and has better strength. Also, in view of safety and sanitation of use, the bamboo pulp paper is natural color bamboo pulp paper, and the bamboo fiber cloth is natural color bamboo fiber cloth, which are not subjected to bleaching and the like.

The super absorbent resin not only has strong water absorption capacity, but also has very strong water locking capacity. The super absorbent resin can be classified into various series according to the source of raw material, hydrophilization method, etc., and the flow rate, bulk specific gravity, tea bag holding power, 0.9% NaCl absorption capacity, 0.3AAP, 0.7AAP, pH, etc. of each series are different. In order to make the water-absorbing layer 2 quickly absorb urine and the water-locking layer 3 lock urine, it is preferable that the first super absorbent polymer has a 0.9% NaCl absorption capacity greater than that of the second super absorbent polymer. The higher the 0.9% NaCl absorption capacity of the super absorbent resin, the higher the urine absorption rate, and the higher the crosslink density after urine absorption, but the lower the urine locking effect.

Preferably, the first high molecular water absorbent resin has a 0.9% NaCl absorption capacity of 55% or more. Further, the first high molecular water-absorbent resin is preferably a high molecular water-absorbent resin of a Taimo BC388S1 or a high molecular water-absorbent resin of a Sumitomo 60S, wherein the 0.9% NaCl absorption rate of the high molecular water-absorbent resin of the Taimo BC388S1 is 63.8%, and the 0.9% NaCl absorption rate of the high molecular water-absorbent resin of the Sumitomo 60S is 64.4%. The second high polymer water-absorbing resin is preferably high polymer water-absorbing resin of BC383AZ or high polymer water-absorbing resin of BASF 7059, wherein the 0.9% NaCl absorption rate of the high polymer water-absorbing resin of the BC383AZ is 53.8%, and the 0.9% NaCl absorption rate of the high polymer water-absorbing resin of BASF 7059 is 53.9%.

The diaper can be divided into a newborn diaper, a small diaper, a medium diaper, a large diaper and a large diaper, the thickness of the water absorbing layer 2 and the water locking layer 3 can be adjusted according to the diapers of different models, the mass ratio of the first super absorbent resin and the bamboo pulp fluff pulp in the water absorbing layer 2 and the mass ratio of the second super absorbent resin and the bamboo pulp fluff pulp in the water locking layer 3 can be adjusted.

Preferably, the surface covering layer 1 comprises a surface layer 11 and a flow guiding layer 12, and the flow guiding layer 12 is arranged between the surface layer 11 and the water absorbing layer 2. The user discharges external back with the urine, at first receives and downward infiltration urine by top layer 1, then receives the urine that is permeated down by top layer 1 by diversion layer 2, and diversion layer 2 can effectively help the urine to conduct and make the urine toward longitudinal diffusion distribution from top layer 11 to layer 2 that absorbs water fast to make the urine leave user's skin fast and get into layer 2 that absorbs water. Specifically, urine gets into and leads 2 rear portions on the flow layer and directly is absorbed by layer 2 that absorbs water along the space, and remaining part is absorbed by layer 2 that absorbs water after leading 2 vertical conduction and diffusion of flow layer, has not only enlarged the absorbing area on layer 2 that absorbs water, makes the urine moreover by the even absorption on layer 2 that absorbs water, not so that concentrate the absorption and lead to absorbing water layer 2 and water-holding layer 3 local thickening because of the urine is absorbed by layer 2 that absorbs water and hinder the absorption and the storage of follow-up urine, reduces the urine storage capacity.

Considering that the diaper is a disposable product and is thrown away after use, and the disposal mode of the diaper is mainly burying, burning and the like, the middle surface layer 11 of the diaper is preferably a bamboo fiber cloth layer, and compared with the traditional non-woven fabric surface layer, the bamboo fiber cloth layer is degradable and more environment-friendly. Furthermore, the bamboo fiber cloth is natural color bamboo fiber cloth, namely, the bamboo fiber cloth is not subjected to bleaching and other treatments, so that the bamboo fiber cloth is safer and more sanitary to use.

Similarly, the flow guiding layer 12 is preferably a polylactic acid layer, which is a degradable environment-friendly material compared to the flow guiding layer of conventional fiber materials such as non-woven fabrics.

Preferably, the base fabric layer 4 includes a bottom layer 42 and a breathable waterproof membrane 41, and the breathable waterproof membrane 41 is disposed between the water-locking layer 3 and the bottom layer 42. The air-permeable waterproof film 41 is not only air-permeable but also can prevent leakage after an excessive amount of urine.

Similarly, in consideration of environmental protection, the bottom layer 42 is a bamboo fiber cloth layer, and the bamboo fiber cloth is natural color bamboo fiber cloth. The breathable waterproof film 41 is a polylactic acid film.

The diaper comprises a base fabric layer 4, and a water locking layer 3, a water absorbing layer 2 and a surface coating layer 1 which are sequentially stacked on the base fabric layer 4, preferably, the diaper comprises a bottom layer 42, and a breathable waterproof film 41, a water locking layer 3, a water absorbing layer 2, a flow guide layer 12 and a surface layer 11 which are sequentially stacked on the bottom layer 42. During preparation, the layers are laminated and bonded in sequence by adopting an adhesive. Preferably, the adhesive is polylactic acid hot melt adhesive, and the bonding temperature is 150-170 ℃.

When the diaper of the invention is used, the surface layer 11 is closely attached to the skin of a user. After a user discharges urine out of the body, the urine is firstly received by the surface layer 1 and downwards permeates, the part of the urine entering the flow guide layer 2 is directly absorbed by the water absorption layer 2 along the gap, and the rest part of the urine is absorbed by the water absorption layer 2 after being longitudinally conducted and diffused along the flow guide layer 2. The water absorbing layer 2 absorbs urine and then transmits the urine to the water locking layer 3 to lock the urine, and the urine is stored in the water locking layer 3. And after the urine storage capacity reaches the limit, replacing the diaper.

The diaper does not use chemical fiber and other materials which are not easy to degrade, can be degraded after use, and is environment-friendly. In addition, the natural color bamboo pulp fluff pulp is used for replacing the traditional wood pulp, and the wrapping materials of the surface layer, the water absorbing layer, the water locking layer and the bottom layer are all made of natural color bamboo fiber materials, so that the natural color bamboo fiber composite floor is safer and more sanitary.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a diaper, its characterized in that includes the base cloth layer and in proper order range upon range of set up in the water-locking layer, the layer and the surface coating layer of base cloth layer absorb water, the layer that absorbs water is the material layer of first super absorbent resin of bamboo pulp paper parcel and bamboo pulp fluff pulp, the water-locking layer is the material layer of bamboo fiber cloth parcel second super absorbent resin and bamboo pulp fluff pulp.

2. The diaper of claim 1, wherein the water absorbent layer has a thickness less than a thickness of the water-lock layer.

3. The disposable diaper of claim 1, wherein the first super absorbent polymer resin has a 0.9% NaCl absorption capacity higher than that of the second super absorbent polymer resin by 0.9% NaCl absorption capacity.

4. The diaper of claim 1, wherein the surface covering comprises a top sheet and a wicking layer, the wicking layer being disposed between the top sheet and the absorbent layer.

5. The diaper of claim 4, wherein the surface layer is a bamboo fiber cloth layer.

6. The diaper of claim 4, wherein the flow-directing layer is a layer of polylactic acid.

7. The diaper of claim 1, wherein the base fabric layer comprises a bottom layer and a breathable waterproof membrane disposed between the water-locking layer and the bottom layer.

8. The diaper of claim 7, wherein the base layer is a bamboo fiber cloth layer.

9. The diaper of claim 7, wherein the breathable waterproof film is a polylactic acid film.