Oil-proof paper

By setting up multi-layer structures such as reinforcement layer, oil-proof layer, and high-temperature resistance layer in the oil-proof paper, the existing oil-proof paper has solved the problems of food contamination, low crack resistance strength and failure of oil-proof effect at high temperature after long-term contact with oil, and achieved Higher oil resistance and high temperature resistance.

CN222477107UActive Publication Date: 2025-02-14HANGZHOU JINGZE PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202420106712.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-16
Publication Date
2025-02-14
Estimated Expiration
2034-01-16

AI Technical Summary

Technical Problem

Existing oil-proof papers cause food to be contaminated by oil after long-term contact with oil, affecting the quality and taste; their crack resistance is low and easy to tear; and the oil-proof effect at high temperature fails, and cannot cope with the packaging needs of high-temperature food.

Method used

A kind of oil-proof paper is designed, and the strength, oil-proof layer, high-temperature resistance layer, moisture-proof layer, antibacterial layer and printing layer are bonded in sequence to improve the strength, oil-proof performance and high-temperature resistance of oil-proof paper.

Benefits of technology

The strength of the oil-proof paper is improved by strengthening the layer, the oil-proof layer prevents oil-factor penetration, and the high-temperature-resistant layer maintains the oil-proof effect at high temperatures, enhancing the practicality and safety of the oil-proof paper.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222477107U_ABST
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Abstract

The utility model discloses oil-proof paper which comprises an oil-proof paper body, and the oil-proof paper body comprises a raw paper base layer, a base paper layer and an oil-proof layer, the printing layer is arranged on one side of the raw paper base layer; the reinforcing layer is arranged on the other side of the raw paper base layer and is opposite to the printing layer; the antibacterial layer is arranged on one side of the reinforcing layer; the damp-proof layer is arranged on one side of the antibacterial layer; the high-temperature-resistant layer is arranged on one side of the damp-proof layer; the oil-proof layer is arranged on one side of the high-temperature-resistant layer; wherein every two of the oil-proof layer, the high-temperature-resistant layer, the damp-proof layer, the antibacterial layer, the reinforcing layer, the raw paper base layer and the printing layer are sequentially bonded. The oil-proof paper can solve the problems of oil permeation, low strength, easy tearing and poor heat resistance of the existing oil-proof paper.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil-proof paper, in particular to oil-proof paper. Background Art

[0002] Greaseproof paper refers to paper that can prevent oil from absorbing and penetrating in a broad sense. In a narrow sense, it refers to a type of paper made from bleached, semi-bleached or unbleached chemical wood pulp through high beating degree treatment. It also includes paper that can resist oil penetration and absorption by adding oil-proof agents to the pulp or coating the surface. Greaseproof paper is widely used in the packaging of foods such as hamburgers, baked bread, biscuits and other oily items to prevent oil penetration and maintain the freshness and quality of food. However, the existing greaseproof paper causes food to be contaminated by grease after long-term contact with grease, affecting the quality and taste; and some greaseproof papers have low crack resistance and are easy to tear, affecting the use effect; some greaseproof papers lose their oil-proof effect at high temperatures and cannot meet the packaging needs of high-temperature foods. Based on the above reasons, a greaseproof paper is designed. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the utility model provides an oil-proof paper, which can solve the problems of grease penetration, low strength, easy tearing and poor heat resistance of the existing oil-proof paper.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] A kind of oil-proof paper comprises an oil-proof paper body, wherein the oil-proof paper body comprises: a base paper layer; a printing layer, wherein the printing layer is arranged on one side of the base paper layer; a reinforcing layer, wherein the reinforcing layer is arranged on the other side of the base paper layer and is arranged opposite to the printing layer; an antibacterial layer, wherein the antibacterial layer is arranged on one side of the reinforcing layer; a moisture-proof layer, wherein the moisture-proof layer is arranged on one side of the antibacterial layer; a high-temperature resistant layer, wherein the high-temperature resistant layer is arranged on one side of the moisture-proof layer; and an oil-proof layer, wherein the oil-proof layer, the high-temperature resistant layer, the moisture-proof layer, the antibacterial layer, the reinforcing layer, the base paper layer and the printing layer are bonded to each other in sequence.

[0006] By adopting the above scheme, the strength of the oil-proof paper body is improved by setting a reinforcing layer to avoid tearing; the oil-proof performance of the oil-proof paper body is improved by the oil-proof layer to avoid grease penetration; the high-temperature resistant layer prevents the oil-proof effect of the oil-proof paper body from weakening and becoming ineffective at high temperatures, thereby improving its practicality.

[0007] Furthermore, the material of the oil-proof layer is food-grade natural beeswax.

[0008] By adopting the above scheme, food-grade safe beeswax has good safety and can prevent oil penetration.

[0009] Furthermore, the material of the high temperature resistant layer is phenolic resin or polyimide.

[0010] By adopting the above solution, the high temperature resistant layer ensures that the structure of the oil-proof paper body is still stable in a high temperature environment, thereby preventing the oil-proof effect from being weakened and failing under high temperature.

[0011] Furthermore, the moisture-proof layer is made of polyethylene or polypropylene film.

[0012] By adopting the above scheme, moisture penetration is prevented, the taste and quality of food are maintained, and the polyethylene and polypropylene films have good flexibility and low cost.

[0013] Furthermore, the antibacterial layer is made of antibacterial food-grade PVC.

[0014] By adopting the above solutions, additional antimicrobial protection is provided, microbial contamination is reduced, and the hygiene safety of food is increased.

[0015] Furthermore, the reinforcing layer includes warp fiber filaments and weft fiber filaments, and the warp fiber filaments and weft fiber filaments are woven interlaced with each other.

[0016] By adopting the above scheme, the overall strength and tear resistance are improved by using the warp fiber yarns and the weft fiber yarns, thereby improving the stability of the oil-proof paper body.

[0017] Furthermore, the base paper layer is one of release base paper, electrostatic copy paper and glassine paper.

[0018] By adopting the above solution, there are more options and a wider scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the reinforcement layer structure of an embodiment of the utility model;

[0022] Among them, the meanings of the accompanying drawings are as follows: 1. Oil-proof paper body; 11. Oil-proof layer; 12. High temperature resistant layer; 13. Moisture-proof layer; 14. Antibacterial layer; 15. Reinforcement layer; 151. Warp fiber filaments; 152. Weft fiber filaments; 16. Original paper base layer; 17. Printing layer. DETAILED DESCRIPTION

[0023] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] See also Figure 1-Figure 3 The utility model discloses an oil-proof paper: comprising an oil-proof paper body 1, the oil-proof paper body 1 comprising: a base paper 16; a printing layer 17, the printing layer 17 is arranged on one side of the base paper 16; a reinforcing layer 15, the reinforcing layer 15 is arranged on the other side of the base paper 16, and is arranged opposite to the printing layer 17; an antibacterial layer 14, the antibacterial layer 14 is arranged on one side of the reinforcing layer 15; a moisture-proof layer 13, the moisture-proof layer 13 is arranged on one side of the antibacterial layer 14; a high temperature resistant layer 12, the high temperature resistant layer 12 is arranged on one side of the moisture-proof layer 13; an oil-proof layer 11, the oil-proof layer 11 is arranged on one side of the high temperature resistant layer 12; wherein the oil-proof layer 11, the high temperature resistant layer 12, the moisture-proof layer 13, the antibacterial layer 14, the reinforcing layer 15, the base paper 16 and the printing layer 17 are sequentially bonded. In actual use, the oil-proof layer 11 is in contact with food. The reinforcement layer 15 is provided to improve the strength of the oil-proof paper body 1 to prevent it from being torn; the oil-proof layer 11 is used to improve the oil-proof performance of the oil-proof paper body 1 to prevent grease penetration; the high-temperature resistant layer 12 is used to prevent the oil-proof effect of the oil-proof paper body 1 from being weakened and ineffective at high temperatures, thereby improving its practicality.

[0028] In this embodiment, the material of the oil-proof layer 11 is food-grade natural beeswax. Food-grade natural beeswax has good safety and can prevent grease from penetrating.

[0029] In this embodiment, the material of the high temperature resistant layer 12 is phenolic resin or polyimide. The high temperature resistant layer 12 ensures that the structure of the oil-proof paper body 1 is still stable in a high temperature environment, thereby preventing the oil-proof effect from being weakened and ineffective under high temperature.

[0030] In this embodiment, the moisture-proof layer 13 is made of polyethylene or polypropylene film to prevent water penetration and maintain the taste and quality of food. Polyethylene and polypropylene films have good flexibility and low cost.

[0031] In this embodiment, the antibacterial layer 14 is made of antibacterial food-grade PVC, which provides additional antibacterial protection, reduces microbial contamination, and increases food hygiene and safety.

[0032] The reinforcing layer 15 comprises warp fibers 151 and weft fibers 152, which are interlaced and woven to improve the overall strength and tear resistance and the stability of the oil-proof paper body 1.

[0033] In this embodiment, the base paper 16 is one of release base paper, electrostatic copy paper, and glassine paper, which has more options and a wider range of applications.

[0034] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A greaseproof paper, characterized in that: The invention comprises an oil-proof paper body, wherein the oil-proof paper body comprises: Base paper substrate; A printing layer, the printing layer is arranged on one side of the base paper layer; A reinforcing layer, the reinforcing layer being arranged on the other side of the base paper layer and opposite to the printing layer; an antibacterial layer, the antibacterial layer being disposed on one side of the reinforcing layer; A moisture-proof layer, the moisture-proof layer being arranged on one side of the antibacterial layer; A high temperature resistant layer, the high temperature resistant layer being arranged on one side of the moisture-proof layer; An oil-proof layer, the oil-proof layer being arranged on one side of the high temperature resistant layer; The oil-proof layer, high temperature-resistant layer, moisture-proof layer, antibacterial layer, reinforcing layer, base paper layer and printing layer are bonded in sequence.

2. The oil-proof paper according to claim 1, characterized in that: The material of the oil-proof layer is food-grade natural beeswax.

3. The oil-proof paper according to claim 1, characterized in that: The material of the high temperature resistant layer is phenolic resin or polyimide.

4. The oil-proof paper according to claim 1, characterized in that: The moisture-proof layer is made of polyethylene or polypropylene film.

5. The oil-proof paper according to claim 1, characterized in that: The material of the antibacterial layer is antibacterial food-grade PVC.

6. The oil-proof paper according to claim 1, characterized in that: The reinforcing layer comprises warp fiber filaments and weft fiber filaments, and the warp fiber filaments and weft fiber filaments are interlaced and woven with each other.

7. The oil-proof paper according to claim 1, characterized in that: The base paper substrate is one of release base paper, electrostatic copy paper and glassine paper.