Card paper with fresh-keeping function
Through the multi-layer structure design of paper jams, including fresh-preservation layer, wood pulp layer and lignocellulose layer, the problem of poor preservation effect of paper jams is solved, and the long-term preservation and structural stability of food is achieved.
Patent Information
- Application Number
- CN202422666878.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-02
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-02
AI Technical Summary
The existing jam paper lacks a specially designed multi-layer structure to achieve the preservation function, resulting in poor preservation effect.
The multi-layer structural design is adopted, including the first white paper layer, impurity layer, fresh preservation layer, wood pulp layer, lignocellulose layer and lignin layer, respectively, to form jam paper with fresh preservation function. The growth of microorganisms and odor absorption are inhibited through the fresh preservation layer. The wood pulp layer provides support and breathability adjustment. The lignocellulose layer absorbs moisture and odor, and the lignin layer blocks harmful substances.
It extends the shelf life of food, maintains the stability of the microenvironment in the packaging, prevents external influences, and enhances the structural stability and mechanical properties of paper jams.
Smart Images
Figure CN223199757U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cardboard, in particular to a cardboard with a fresh-keeping function. Background Art
[0002] Cardboard is a thick paper weighing over 120 grams per square meter. It is commonly used for postcards, cards, and album backing paper. Also known as hard cardboard, cardboard has a high stiffness and texture, making it suitable for applications that require a certain degree of pressure and friction. Cardboard is a thick, sturdy paper type. Its thickness is between that of paper and cardboard, and it generally has high stiffness and strength.
[0003] The existing cardboard with a fresh-keeping function is usually composed of a single fiber layer and lacks a specially designed multi-layer structure to achieve the fresh-keeping function. Traditional cardboard is mainly made of wood pulp fiber through simple processing. It does not have special structural layers such as a special fresh-keeping layer and an adsorption layer like the cardboard with a fresh-keeping function. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a cardboard with a fresh-keeping function.
[0005] The utility model adopts the following technical solution: a cardboard with a fresh-keeping function, comprising a first white cardboard layer, the first white cardboard layer is bonded to the top of an impurity layer, and a second white cardboard layer is bonded to the bottom of the impurity layer;
[0006] The interior of the first white cardboard layer is fixedly connected to a fresh-keeping layer, the bottom of the fresh-keeping layer is bonded to a first wood pulp layer, the interior of the impurity layer is fixedly connected to wood cellulose, the bottom of the wood cellulose is bonded to a lignin layer, the interior of the second white cardboard layer is fixedly connected to a cellulose layer, and the bottom of the cellulose layer is bonded to a second wood pulp layer.
[0007] Through the above technical solution, the first wood pulp layer can increase the structural stability of the first white cardboard layer. The interwoven structure of the wood pulp fibers makes the first white cardboard layer less prone to deformation, allowing it to maintain a good shape during production, transportation, and use, thereby ensuring the stable performance of the entire cardboard.
[0008] As a further improvement of the above solution, the impurity layer is bonded to the bottom of the first wood pulp layer, and the wood cellulose is bonded to the bottom of the first wood pulp layer.
[0009] As a further improvement of the above solution, the second white cardboard layer is bonded to the bottom of the impurity layer, and the cellulose layer is bonded to the bottom of the lignin layer.
[0010] As a further improvement of the above solution, the second white cardboard layer is located at the bottom of the first white cardboard layer, and the wood cellulose is located at the bottom of the fresh-keeping layer.
[0011] As a further improvement of the above solution, the cellulose layer is located at the bottom of the wood cellulose, and the second white cardboard layer is located at the bottom of the wood cellulose.
[0012] Through this technical solution, the cellulose layer possesses certain barrier properties, such as resistance to moisture and oxygen, preventing the external environment from affecting the food inside the package. The second wood pulp layer provides support for the cellulose layer, giving the second white cardboard layer improved mechanical properties and resistance to external pressure and friction. The combination of these two layers helps protect the food inside the package from below, maintaining a fresh environment.
[0013] As a further improvement of the above solution, the cellulose layer is located at the bottom of the first white cardboard layer, and the second white cardboard layer is located at the bottom of the first white cardboard layer.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] The utility model has a fresh-keeping function by arranging a fresh-keeping layer, which can inhibit the growth of microorganisms, reduce the entry of oxygen or absorb the odor emitted by food, thereby extending the shelf life of food. The first wood pulp layer is located below the fresh-keeping layer. On the one hand, it can provide certain support for the fresh-keeping layer. On the other hand, the wood pulp layer itself has a certain air permeability adjustment ability. Cooperating with the fresh-keeping layer, it can better control the microenvironment inside the package, which is conducive to fresh-keeping.
[0016] The utility model has good adsorption performance by arranging wood cellulose, which can absorb harmful substances such as moisture and odor emitted by food during storage. By arranging the lignin layer below the wood cellulose, it may play a certain barrier role, preventing the adsorbed substances from being released again or the invasion of external harmful substances. This combination helps to maintain the stability of the internal environment of the package and extend the shelf life of the food. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the front anatomical structure of the present invention;
[0019] Figure 3 This is an enlarged schematic diagram of the structure at A of the utility model;
[0020] Figure 4 This is a schematic diagram of the split structure of the first white cardboard layer of the present invention.
[0021] Description of main symbols:
[0022] 1. First white cardboard layer; 101. Fresh-keeping layer; 102. First wood pulp layer; 2. Impurity layer; 201. Wood cellulose; 202. Lignin layer; 3. Second white cardboard layer; 301. Cellulose layer; 302. Second wood pulp layer. DETAILED DESCRIPTION
[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] Example:
[0025] Please combine Figure 1-4 The cardboard with a fresh-keeping function of this embodiment includes a first white cardboard layer 1, the first white cardboard layer 1 is bonded to the top of the impurity layer 2, and the second white cardboard layer 3 is bonded to the bottom of the impurity layer 2;
[0026] The first white cardboard layer 1 is fixedly connected to the inside of the fresh-keeping layer 101, and the bottom of the fresh-keeping layer 101 is bonded with the first wood pulp layer 102, the impurity layer 2 is fixedly connected to the inside of the wood cellulose 201, and the bottom of the wood cellulose 201 is bonded with the lignin layer 202, the second white cardboard layer 3 is fixedly connected to the inside of the cellulose layer 3, and the bottom of the cellulose layer 301 is bonded with the second wood pulp layer 302. By setting the fresh-keeping layer 101 with a fresh-keeping function, it can inhibit the growth of microorganisms, reduce the entry of oxygen or absorb the odor emitted by food, thereby extending the shelf life of food, and the first wood pulp layer 102 is located below the fresh-keeping layer 101. On the one hand, it can provide certain support for the fresh-keeping layer 101. On the other hand, the wood pulp layer itself has a certain air permeability adjustment ability. Cooperating with the fresh-keeping layer 101, it can better control the microenvironment inside the package, which is conducive to fresh-keeping.
[0027] The first wood pulp layer 102 can increase the structural stability of the first white cardboard layer 1. The interwoven structure of the wood pulp fibers makes the first white cardboard layer 1 less likely to deform, and can maintain a good shape during production, transportation and use, thereby ensuring the stability of the entire cardboard.
[0028] The impurity layer 2 is bonded to the bottom of the first wood pulp layer 102 , and the wood cellulose 201 is bonded to the bottom of the first wood pulp layer 102 .
[0029] The second white cardboard layer 3 is bonded to the bottom of the impurity layer 2 , and the cellulose layer 301 is bonded to the bottom of the lignin layer 202 .
[0030] The second white cardboard layer 3 is located at the bottom of the first white cardboard layer 1 , and the wood cellulose 201 is located at the bottom of the fresh-keeping layer 101 .
[0031] The cellulose layer 301 is located at the bottom of the wood cellulose 201, and the second white cardboard layer 3 is located at the bottom of the wood cellulose 201. By setting the wood cellulose 201 to have good adsorption properties, it can absorb harmful substances such as moisture and odor emitted by food during storage. By setting the lignin layer 202 below the wood cellulose 201, it may play a certain barrier role to prevent the adsorbed substances from being released again or the invasion of external harmful substances. This combination helps to maintain the stability of the internal environment of the package and extend the shelf life of the food.
[0032] Cellulose layer 301 may have certain barrier properties, such as barrier properties against moisture and oxygen, preventing the external environment from affecting the food inside the package. Second wood pulp layer 302 provides support for cellulose layer 301, giving second white cardboard layer 3 improved mechanical properties and the ability to withstand external pressure and friction. The combination of these two layers helps protect the food inside the package from below, maintaining a fresh environment.
[0033] The cellulose layer 301 is located at the bottom of the first white cardboard layer 1 , and the second white cardboard layer 3 is located at the bottom of the first white cardboard layer 1 .
[0034] The implementation principle of a cardboard with a fresh-keeping function in the embodiment of the present application is as follows: by setting a fresh-keeping layer 101 with a fresh-keeping function, it can inhibit the growth of microorganisms, reduce the entry of oxygen or absorb odors emitted by food, thereby extending the shelf life of food, and the first wood pulp layer 102 is located below the fresh-keeping layer 101. On the one hand, it can provide certain support for the fresh-keeping layer 101, and on the other hand, the wood pulp layer itself has a certain air permeability adjustment ability, and cooperates with the fresh-keeping layer 101 to better control the microenvironment inside the package, which is beneficial to fresh-keeping. By setting the wood cellulose 201 to have good adsorption properties, it can absorb harmful substances such as moisture and odors emitted by food during storage. By setting the lignin layer 202 below the wood cellulose 201, it may play a certain barrier role to prevent the adsorbed substances from being released again or the invasion of external harmful substances. This combination helps to maintain the stability of the internal environment of the package and extend the shelf life of food.
[0035] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A cardboard with a fresh-keeping function, characterized in that: It comprises a first white cardboard layer (1), wherein the first white cardboard layer (1) is bonded to the top of an impurity layer (2), and a second white cardboard layer (3) is bonded to the bottom of the impurity layer (2); The first white cardboard layer (1) is fixedly connected to a fresh-keeping layer (101), the bottom of the fresh-keeping layer (101) is bonded to a first wood pulp layer (102), the impurity layer (2) is fixedly connected to a wood cellulose layer (201), the bottom of the wood cellulose layer (201) is bonded to a lignin layer (202), the second white cardboard layer (3) is fixedly connected to a cellulose layer (301), the bottom of the cellulose layer (301) is bonded to a second wood pulp layer (302).
2. The cardboard with a fresh-keeping function according to claim 1, characterized in that: The impurity layer (2) is bonded to the bottom of the first wood pulp layer (102), and the wood cellulose (201) is bonded to the bottom of the first wood pulp layer (102).
3. The cardboard with a fresh-keeping function according to claim 1, characterized in that: The second white cardboard layer (3) is bonded to the bottom of the impurity layer (2), and the cellulose layer (301) is bonded to the bottom of the lignin layer (202).
4. The cardboard with a fresh-keeping function according to claim 3, characterized in that: The second white cardboard layer (3) is located at the bottom of the first white cardboard layer (1), and the wood cellulose (201) is located at the bottom of the fresh-keeping layer (101).
5. The cardboard with a fresh-keeping function according to claim 1, characterized in that: The cellulose layer (301) is located at the bottom of the wood cellulose (201), and the second white cardboard layer (3) is located at the bottom of the wood cellulose (201).
6. The cardboard with a fresh-keeping function according to claim 5, characterized in that: The cellulose layer (301) is located at the bottom of the first white cardboard layer (1), and the second white cardboard layer (3) is located at the bottom of the first white cardboard layer (1).