Novel tipping base paper

Through multi-layer design and material combination, the problem of the single function of traditional cork base paper has been solved, and the synergistic effect of antibacterial, moisture-proof, high strength, breathability and biodegradability has been achieved, thus improving the service life of the product.

CN223853072UActive Publication Date: 2026-01-30TANN SHANGHAI +1
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Patent Information

Application Number
CN202520361734.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-01-30
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

Traditional cork base paper has limited functionality and application scenarios, and existing double-layer structures offer limited performance improvements and are costly.

Method used

The product employs a multi-layer design, including a substrate layer, a mixed fiber layer, an antibacterial and mildew-proof layer, a reinforcing layer, a polylactic acid microporous membrane layer, and a surface treatment layer. It utilizes a combination of materials such as bamboo pulp, sugarcane bagasse pulp, chitosan-nano silver, nano silica, and plant waxes to achieve a synergistic effect of antibacterial, moisture-proof, high-strength, breathable, and biodegradable properties.

Benefits of technology

It achieves a synergistic effect of antibacterial, moisture-proof, high-strength, breathable and biodegradable properties, thus improving the product's service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223853072U_ABST
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Abstract

The utility model discloses novel tipping base paper which comprises a base material layer, a mixed fiber layer arranged on the outer side of the base material layer, an antibacterial and mildew-proof layer arranged on the outer side of the mixed fiber layer, a reinforcing layer arranged on the outer side of the antibacterial and mildew-proof layer, a polylactic acid microporous membrane layer arranged on the outer side of the reinforcing layer, a surface treatment layer arranged on the outer side of the polylactic acid microporous membrane layer, the surface treatment layer includes a first treatment layer and a second treatment layer. By means of the multi-layer design, the synergistic effect of antibiosis, moisture prevention, high strength, breathability and degradability is achieved, and the service life of the product is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to papermaking field, specifically, relate to a novel water pine raw paper. BACKGROUND

[0002] Water pine raw paper as a kind of special paper, it is widely used in food packaging (such as tea filter paper), medical supplies (such as disinfection packaging material) and environmental protection field.The traditional water pine raw paper more adopts single layer or simple double layer structure design, its material selection and function integration there is significant limitation, specific performance is as follows: single function leads to application scene limitation, existing single water pine raw paper usually with pure wood pulp or cotton pulp as base material, only rely on single material property realizes basic performance, and double layer structure although attempts to improve performance by composite two materials (such as outer layer moisture-proof + inner layer antibacterial), but overall functionality is still poor, also lead to the rise of processing cost. SUMMARY

[0003] Therefore, the utility model provides a novel water pine raw paper

[0004] Through the synergistic effect of antibacterial, moisture-proof, high-strength, breathable and degradable performance of multi-layer design, improve product service life, solve the problem of single function leading to application scene limitation.

[0005] In order to solve the above technical problems, the utility model discloses a novel water pine raw paper, including: base material layer, base material layer outside is equipped with mixed fiber layer, mixed fiber layer outside is equipped with antibacterial mildewproof layer, antibacterial mildewproof layer outside is equipped with reinforcing layer, reinforcing layer outside is equipped with polylactic acid microporous membrane layer, aperture is 5-20 μm, porosity is 30%-50%, polylactic acid microporous membrane layer outside is equipped with surface treatment layer, surface treatment layer includes first processing layer and second processing layer.

[0006] According to the utility model one implementation form, wherein above-mentioned mixed fiber layer is mixed by bamboo pulp and sugarcane residue pulp.

[0007] According to the utility model one implementation form, wherein above-mentioned first processing layer is nanometer silicon dioxide layer, and second processing layer is plant wax layer.

[0008] According to the utility model one implementation form, wherein above-mentioned antibacterial mildewproof layer is chitosan-nano silver layer.

[0009] According to the utility model one implementation form, wherein above-mentioned base material layer thickness accounts for 40-50% of total thickness.

[0010] Compared with the prior art, the utility model can obtain the following technical effects:

[0011] 1) The synergistic effect of antibacterial, moisture-proof, high-strength, breathable and degradable properties is achieved through multi-layer design, which improves the service life of the product.

[0012] Of course, any product implementing the present application does not necessarily need to achieve all the above technical effects simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0014] Figure 1 is a novel water pine raw paper section view of the present application.

[0015] IDENTIFICATION OF DRAWINGS

[0016] The base material layer 10, the mixed fiber layer 20, the antibacterial and mildew-proof layer 30, the reinforcing layer 40, the polylactic acid microporous membrane layer 50, the surface treatment layer 60, the first treatment layer 70, and the second treatment layer 80. DETAILED DESCRIPTION

[0017] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0018] Please refer to Figure 1 , Figure 1 is a novel water pine raw paper section view of the present application. As shown in the figure, a novel water pine raw paper comprises: a base material layer 10, a mixed fiber layer 20 arranged outside the base material layer 10, an antibacterial and mildew-proof layer 30 arranged outside the mixed fiber layer 20, and a reinforcing layer 40 arranged outside the antibacterial and mildew-proof layer 30.

[0019] In an embodiment of the present application, the thickness of the base material layer 10 accounts for 40-50% of the total thickness. The mixed fiber layer 20 is arranged outside the base material layer 10. Bamboo pulp and bagasse pulp are mixed in a ratio of 6:4, and the mixed fiber layer 20 is formed by papermaking process to enhance its toughness. The antibacterial and mildew-proof layer 30 is arranged outside the mixed fiber layer 20. The antibacterial and mildew-proof layer 30 is a chitosan-nano silver layer. Chitosan-nano silver solution is uniformly coated on the outside of the mixed limiting layer by immersion method to enhance its antibacterial and mildew-proof performance. Then the reinforcing layer 40 is arranged outside the antibacterial and mildew-proof layer 30. The CMC-starch mixed solution is sprayed and cured by heat pressing to form a network reinforcing structure, thereby enhancing the overall strength.

[0020] Further, the outer side of the reinforcing layer 40 is provided with a polylactic acid microporous membrane layer 50 with a pore size of 5-20 μm and a porosity of 30-50%, and the outer side of the polylactic acid microporous membrane layer 50 is provided with a surface treatment layer 60, which comprises a first treatment layer 70 and a second treatment layer 80.

[0021] In detail, the outer side of the reinforcing layer 40 is provided with a polylactic acid microporous membrane layer 50 with a pore size of 5-20 μm and a porosity of 30-50%, and the polylactic acid microporous membrane layer 50 is hot-pressed with the reinforcing layer 40 to enhance the waterproof capability of the whole water-absorbing base paper. Then, the outer side of the polylactic acid microporous membrane layer 50 is provided with a surface treatment layer 60, which comprises a first treatment layer 70 and a second treatment layer 80, wherein the first treatment layer 70 is a nano-silicon dioxide layer, and the second treatment layer 80 is a plant wax layer.

[0022] In summary, the present application realizes the synergistic effect of antibacterial, moisture-proof, high-strength, breathable and degradable properties through multi-layer design, thereby improving the service life of the product. The above description shows and describes several preferred embodiments of the present application, but as mentioned above, the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the present application, through the above teachings or related technical or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the appended claims of the present application.

Claims

1. A novel water-based base paper, characterized by The application relates to a composite material, which comprises a substrate layer, a mixed fiber layer outside the substrate layer, an antibacterial and antifungal layer outside the mixed fiber layer, a reinforcing layer outside the antibacterial and antifungal layer, a polylactic acid microporous membrane layer outside the reinforcing layer, a surface treatment layer outside the polylactic acid microporous membrane layer, wherein the polylactic acid microporous membrane layer has a pore size of 5-20 mu m and a porosity of 30-50%, and the surface treatment layer comprises a first treatment layer and a second treatment layer. The mixed fiber layer is prepared by mixing bamboo pulp and bagasse pulp.

2. The novel water-based base paper according to claim 1, characterized by, The first treatment layer is a nano-silicon dioxide layer, and the second treatment layer is a plant wax layer.

3. The novel water-based base paper according to claim 1, characterized by, The antibacterial and antifungal layer is a chitosan-nano-silver layer.

4. The novel water-based base paper according to claim 1, characterized by, The thickness of the substrate layer accounts for 40-50% of the total thickness.

5. The novel water-based base paper according to claim 1, characterized by, ​