Soft degradable paper diaper

Abstract

The invention discloses a soft degradable paper diaper which comprises a paper diaper body, elastic threads arranged on the paper diaper body and partition edges used for preventing leakage, and the paper diaper body comprises a surface layer, a flow guide layer, a wrapping layer, an absorption layer, a bottom film and a bottom layer which are arranged from top to bottom. The surface layer is a non-woven fabric made of bamboo fibers and ES fibers through a hot air penetration technology, the bamboo fibers account for 15% of the surface layer, and the ES fibers account for 85% of the surface layer; the bottom layer is made of 100% bamboo fiber non-woven fabric. According to the invention, bacterial growth can be effectively inhibited, peculiar smell can be reduced, the surface layer has the characteristics of skin friendliness, breathability, no peculiar smell, cleanness and sanitation, the occurrence of diaper rash can be effectively reduced, and the surface layer has biodegradability, is environment-friendly and is beneficial to sustainable development; the non-woven fabric is prepared by using a hot air penetration technology, so that more gaps are formed in a formed fiber net structure, the air permeability and the filtering performance of the non-woven fabric are improved through the gaps, and the softness of the surface layer is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of diaper production, and in particular relates to a soft and degradable diaper. Background Art

[0002] At present, my country's baby hygiene products industry is still in its growth stage, and the market size has increased from 6.909 billion yuan in 2006 to 70.339 billion yuan in 2020. With the development of contemporary social economy and the improvement of environmental awareness among the public, high-end quality and environmentally friendly materials have become new trends in baby diapers. Existing diapers cause serious environmental pollution problems due to their difficulty in degradation. In addition, diapers have poor water absorption and water lock performance, insufficient dryness, and the surface layer is not skin-friendly and soft, which can easily lead to diaper rash and other problems.

[0003] The Chinese patent application with application number CN202010985969.4 discloses a degradable baby diaper, including a diaper body, the diaper body including a liquid-permeable surface layer, a guide layer, an absorbent layer, and a leakproof bottom layer stacked from top to bottom, the liquid-permeable surface layer is composed of a polylactic acid non-woven fabric and a hydrophobic non-woven fabric, the absorbent layer is composed of an absorbent core and a wrapping layer, the absorbent core includes an upper absorbent core and a lower absorbent core, the upper absorbent core includes a first polymer resin layer and a first fluffy non-woven fabric layer, the lower absorbent core is composed of a second fluffy non-woven fabric, a second polymer resin layer, and a third fluffy non-woven fabric layer stacked from top to bottom, and the leakproof bottom layer is composed of a degradable cast film and a hydrophobic non-woven fabric arranged at the bottom thereof. This patent application solves the problem that the prior art diapers are difficult to degrade after use, affecting the health of the ecological environment, but its softness is poor and the fabric is not dry enough. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a soft and degradable diaper, which can effectively reduce the occurrence of diaper rash.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] One of the purposes of the present invention is to provide a soft and degradable diaper, comprising a diaper body and an elastic line arranged on the diaper body and a leak-proof separator, wherein the diaper body comprises a surface layer, a guide layer, a coating layer, an absorption layer, a base film and a bottom layer arranged from top to bottom, wherein the surface layer is a non-woven fabric made of bamboo fiber and ES fiber by hot air penetration technology, wherein the bamboo fiber accounts for 15% of the surface layer and the ES fiber accounts for 85% of the surface layer; the bottom layer is a 100% bamboo fiber non-woven fabric.

[0007] Furthermore, the preparation process of the non-woven fabric of the surface layer is as follows:

[0008] S1: Mix bamboo fiber and ES fiber in a set ratio and form into granules through an extrusion molding machine;

[0009] S2: placing the granular material obtained in step S in a hot air blower to melt it to obtain a composite melt, and then spinning it through a component to obtain a composite filament bundle;

[0010] S3: using hot air blowing equipment to blow the composite tow to form a fiber with a mesh structure, and then cooling, stretching, shaping, and winding to obtain a composite fiber;

[0011] S4: Combing the composite fibers into a web, and using hot air penetration technology to prepare the non-woven fabric of the surface layer.

[0012] Furthermore, the raw material of the guide layer is hot air non-woven fabric.

[0013] Furthermore, the surface layer and the guide layer, the guide layer and the covering layer, and the covering layer and the base film are all connected by adhesive.

[0014] Furthermore, the separator is made of water-repellent non-woven fabric.

[0015] Furthermore, the raw materials of the absorption layer are fluff pulp and high molecular polymer.

[0016] Furthermore, the diaper body also includes a covering layer, which is covered on the outside of the absorption layer and is a non-woven fabric.

[0017] Furthermore, the bottom film is a PE breathable film.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The soft and degradable diaper provided by the present invention is a two-component surface non-woven fabric made of bamboo fiber and ES fiber, which can not only effectively inhibit bacterial growth and reduce odor, but also make the surface layer skin-friendly, breathable, odorless, clean and hygienic, effectively reduce the occurrence of diaper rash, and it is biodegradable, environmentally friendly and conducive to sustainable development; by blending 15% bamboo fiber with 85% ES fiber, it can also solve the problem of poor dryness of single bamboo fiber non-woven fabric after absorption. At the same time, the present invention also uses hot air penetration technology to prepare non-woven fabrics. The hot air penetration technology forms more gaps on the formed fiber mesh structure, and these gaps improve the air permeability and filtration performance of the non-woven fabric, and further improve the softness of the surface layer.

[0020] 2. In the present invention, the bottom layer adopts bamboo fiber non-woven fabric, which has the characteristics of natural antibacterial, antibacterial, environmental protection and natural degradation.

[0021] 3. In the present invention, the guide layer adopts hot air non-woven fabric, which has good air permeability, helps the air circulation inside the diaper, reduces the dampness, and improves the comfort of the baby.

[0022] 4. In the present invention, the raw materials of the absorption layer are fluff pulp and high molecular polymer, which can effectively lock the liquid and keep the surface dry.

[0023] 5. In the present invention, a non-woven fabric covering layer is used to wrap the absorption layer, so that the absorption layer can maintain uniform absorption without cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a soft and degradable diaper provided by the present invention.

[0025] In the figure: 1. surface layer; 2. adhesive; 3. guide layer; 4. separator; 5. covering layer; 6. absorption layer; 7. bottom film; 8. elastic thread; 9. bottom non-woven fabric. DETAILED DESCRIPTION

[0026] The following is in conjunction with the preferred embodiment and with reference to the attached Figure 1 , the present invention is further described. The endpoints and any values ​​of the ranges disclosed in the present invention are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values; for numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed herein; the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels; the experimental methods in the following examples, unless otherwise specified, are all conventional methods.

[0027] Example 1

[0028] This embodiment provides a soft and degradable diaper, such as Figure 1 As shown, it includes a diaper body and an elastic line 8 arranged on the diaper body and a partition 4 for leak prevention. The diaper body includes a surface layer 1, a guide layer 3, a coating layer 5, an absorption layer 6, a bottom film 7 and a bottom layer 9 arranged from top to bottom. The surface layer 1 is a non-woven fabric made of bamboo fiber and ES fiber by hot air penetration technology. The bamboo fiber accounts for 15% of the surface layer 1 and the ES fiber accounts for 85%; the bottom layer 9 is 100% bamboo fiber non-woven fabric.

[0029] In this embodiment, the preparation process of the non-woven fabric of the surface layer 1 is as follows:

[0030] S1: Mix bamboo fiber and ES fiber in a set ratio and form into granules through an extrusion molding machine;

[0031] S2: placing the granular material obtained in step S1 in a hot air blower to melt it to obtain a composite melt, and then spinning it through a component to obtain a composite filament bundle;

[0032] S3: using hot air blowing equipment to blow the composite tow to form a fiber with a mesh structure, and then cooling, stretching, shaping, and winding to obtain a composite fiber;

[0033] S4: Combing the composite fibers into a web, and using hot air penetration technology to produce the non-woven fabric of the surface layer 1.

[0034] In this embodiment, the raw material of the guide layer 3 is hot air non-woven fabric, the separator 4 is water-repellent non-woven fabric, the raw material of the absorption layer 6 is fluff pulp and high molecular polymer, and the bottom film 7 is a PE breathable film.

[0035] In this embodiment, the surface layer 1 and the guide layer, the guide layer 3 and the covering layer 5, and the covering layer 5 and the base film 7 are all connected by an adhesive 2.

[0036] In this embodiment, the diaper body further includes a covering layer 5, which covers the absorbent layer 6 and is made of non-woven fabric.

[0037] Comparative Example 1

[0038] The difference from Example 1 is that:

[0039] The raw material of the surface layer 1 of this comparative example is 100% ES fiber non-woven fabric.

[0040] Comparative Example 2

[0041] The raw material of the surface layer 1 of this comparative example is 100% bamboo fiber non-woven fabric.

[0042] Comparative Example 3

[0043] The surface layer 1 of this comparative example is pure cotton non-woven fabric.

[0044] Comparative Example 4

[0045] The bottom layer 9 of this comparative example is pure cotton nonwoven fabric.

[0046] Comparative Example 5

[0047] The surface layer 1 of this comparative example is pure cotton nonwoven fabric, and the bottom layer 9 is pure cotton nonwoven fabric.

[0048] Implementation effect evaluation

[0049] The following is a specific test of the nonwoven fabrics and diapers prepared in Example 1 and Comparative Examples 1-5 to further illustrate the excellent effects achieved by the present invention:

[0050] Water absorption test: The nonwoven fabrics of the surface layer 1 prepared in Example 1 and Comparative Examples 1-5 were tested according to the relevant standards of GB / T461.3-2005;

[0051] Antibacterial test: The diapers prepared in Example 1 and Comparative Examples 1-5 were tested according to the relevant standards of GB / T20944.3-2005;

[0052] Air permeability test: The nonwoven fabrics of the surface layer 1 prepared in Example 1 and Comparative Examples 1-5 were tested according to the relevant standards of GB / T 1037;

[0053] The test results are shown in the following table:

[0054] Table 1 Test results statistics

[0055]

[0056]

[0057] It can be seen from the above table that the soft and degradable diaper prepared by the present invention has good water absorption, antibacterial and dry properties, and is skin-friendly, breathable, odorless, clean and hygienic. The skin in contact with it can remain dry for a long time, and the occurrence of diaper rash can be effectively reduced.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A soft and degradable diaper, comprising a diaper body, an elastic cord (8) arranged on the diaper body, and a leak-proof separator (4), wherein the diaper body comprises a surface layer (1), a guide layer (3), a covering layer (5), an absorption layer (6), a bottom film (7), and a bottom layer (9) arranged from top to bottom, characterized in that: The surface layer (1) is a non-woven fabric made of bamboo fiber and ES fiber by hot air penetration technology, wherein the bamboo fiber accounts for 15% of the surface layer (1) and the ES fiber accounts for 85%; the bottom layer (9) is a 100% bamboo fiber non-woven fabric.

2. The soft and degradable diaper according to claim 1, characterized in that: The preparation process of the non-woven fabric of the surface layer (1) is as follows: S1: Mix bamboo fiber and ES fiber in a set ratio and form into granules through an extrusion molding machine; S2: placing the granular material obtained in step S1 in a hot air blower to melt it to obtain a composite melt, and then spinning it through a component to obtain a composite filament bundle; S3: using hot air blowing equipment to blow the composite tow to form a fiber with a mesh structure, and then cooling, stretching, shaping, and winding to obtain a composite fiber; S4: Combing the composite fibers into a web, and using hot air penetration technology to produce the non-woven fabric of the surface layer (1).

3. The soft and degradable diaper according to claim 1, characterized in that: The raw material of the flow-guiding layer (3) is hot air non-woven fabric.

4. The soft and degradable diaper according to claim 1, characterized in that: The surface layer (1) and the guide layer, the guide layer (3) and the covering layer (5), and the covering layer (5) and the base film (7) are all connected via adhesive (2).

5. The soft and degradable diaper according to claim 1, characterized in that: The partition (4) is made of water-repellent non-woven fabric.

6. The soft and degradable diaper according to claim 1, characterized in that: The raw materials of the absorption layer (6) are fluff pulp and high molecular polymer.

7. The soft and degradable diaper according to claim 1, characterized in that: The diaper body further comprises a covering layer (5), wherein the covering layer (5) covers the outside of the absorption layer (6), and the covering layer (5) is a non-woven fabric.

8. The soft and degradable diaper according to claim 1, characterized in that: The bottom film (7) is a PE breathable film.

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