Oil-proof and heat-insulating food packaging paper

By introducing a nylon fiber reinforcement layer, silver ion antibacterial agent, and multi-layer composite structure into food packaging paper, the problems of toughness and antibacterial properties are solved, achieving the effects of oil resistance, heat insulation, and easy cleaning, making it suitable for a variety of food packaging.

CN223880106UActive Publication Date: 2026-02-06TAIHU COUNTY JIAYING SPECIAL PAPER CO LTD
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Patent Information

Application Number
CN202520630094.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-06
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing greaseproof food packaging paper has poor toughness, is easy to tear, and lacks antibacterial effect.

Method used

The reinforcing layer is made of nylon fiber, combined with silver ion antibacterial agent and water-based barrier coating, with polyethylene oil-proof layer, polyethylene terephthalate heat insulation layer and wood pulp bamboo charcoal fiber cleaning layer, and the composite is formed by hydroentangling process to form a multi-layer structure.

Benefits of technology

It improves the toughness and tear resistance of packaging paper, has antibacterial effects, extends the shelf life of food, and provides convenient cleaning functions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223880106U_ABST
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Abstract

The utility model provides oil-proof and heat-insulating food packaging paper, which relates to the field of packaging paper and comprises a packaging paper body, the packaging paper body comprises a base layer, the base layer comprises a reinforcing layer, an antibacterial agent and a retention aid are added in the reinforcing layer, an oil-proof layer is arranged on one side of the base layer, and an oil-proof layer is arranged on the other side of the base layer. A heat insulation layer and a blocking layer are arranged on the outer side of the oil-proof layer, and meanwhile a cleaning layer is arranged on the other side of the base layer. The anti-tear packaging paper has the advantages that the toughness and the strength of the packaging paper are enhanced, the anti-tear effect is achieved, and meanwhile, the anti-tear packaging paper has certain antibacterial and cleaning functions.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing paper, specifically relates to an oil-proof heat-insulating food packing paper. BACKGROUND

[0002] Food packing paper is a packing product taking paper pulp and paperboard as main raw materials, needs to satisfy the requirements such as non-toxic, oil resistance, waterproof and moistureproof, sealing and the like, since food packing paper directly contacts food, therefore, the technical standard of food packing paper has higher requirement, the present scheme specifically relates to food packing paper, first, most packing paper simple structure, simply seal oil stain through waterproof and oilproof film.

[0003] Through the retrieval, prior art (announcement number: CN219236421U), the paper records "a food packing paper capable of preventing oil, including paper, the middle part of paper is provided with base layer, the top surface of base layer is adhered with oil-proof layer, the top surface of oil-proof layer is adhered with adsorption layer, the top surface of adsorption layer is adhered with permeation layer, the top surface of permeation layer is adhered with frosted layer one, the bottom surface of base layer is adhered with temperature insulation layer, the bottom surface of temperature insulation layer is adhered with frosted layer two, the oil-proof layer is PTFE material, is with polyethylene as raw material, the temperature insulation layer is PET material, is with polyethylene terephthalate as raw material, the adsorption layer is original wood pulp material, and the adsorption layer contains polyacrylic acid partial sodium salt inside, the food packing paper capable of preventing oil of the utility model can reduce the humidity inside packing paper, guarantee the taste of food, and can reduce the transmission effect of food temperature, play the heat preservation effect, and facilitate taking at the same time."

[0004] Although the food packing paper capable of preventing oil in prior art can realize the effect of heat preservation and convenient taking, it still has some deficiencies: the existing food packing paper capable of preventing oil has poor toughness and is easy to be torn, and generally does not have antibacterial effect. UTILITY MODEL CONTENT

[0005] In order to overcome the defects in the prior art, the present application provides an oil-proof heat-insulating food packing paper to solve the problems in the background art.

[0006] In order to achieve the above purpose, an oil-proof heat-insulating food packing paper is provided, comprising: a packing paper body, the packing paper body comprises a base layer, and the base layer comprises a reinforcing layer, and an antibacterial agent and a retention aid are added to the reinforcing layer, one side of the base layer is provided with an oil-proof layer, and the outer side of the oil-proof layer is provided with a heat-insulating layer and a barrier layer, and the other side of the base layer is provided with a cleaning layer.

[0007] Further, the reinforcing layer is made of nylon fiber material.

[0008] Further, the oil-proof layer is made of polyethylene material, and the oil-proof layer is arranged on the outer side of the base layer.

[0009] Further, the heat insulation layer is made of polyethylene terephthalate glycol.

[0010] Further, the barrier layer is made of water-based barrier coating.

[0011] Further, the cleaning layer comprises wood pulp fibers and bamboo charcoal fibers, and the wood pulp fibers and the bamboo charcoal fibers are compounded by a hydroentangling process.

[0012] Further, the antibacterial agent is made of silver ion antibacterial material, and the retention aid is made of inorganic salt material.

[0013] The utility model discloses the beneficial effect lies in:

[0014] 1, utilize the reinforcing layer and antibacterial agent of the base layer, make through the nylon fiber material quality increase the puncture resistance and the impact resistance of packing paper is very strong, and the tensile strength is high, is applicable to frozen packing, vacuum packing and cooking packing, to avoid the tearing of packing paper when using, secondly through the setting antibacterial agent, make through the silver ion antibacterial material increase the antibacterial effect of packing paper, prolong the food storage time.

[0015] 2, utilize the oil-proof layer, heat insulation layer and barrier layer, make the oil-proof and heat insulation effect of packing paper, secondly utilize the wood pulp fibers and bamboo charcoal fibers of the cleaning layer, make after the use of packing paper can wipe the body (hand or mouth) oil stain, to reach the effect of convenient cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the packing paper body structure schematic view of the utility model embodiment.

[0017] Fig. 2 It is the packing paper material layer structure schematic view of the utility model embodiment.

[0018] Fig. 3 It is the base layer structure schematic view of the utility model embodiment.

[0019] Fig. 4 It is the cleaning layer structure schematic view of the utility model embodiment.

[0020] In the drawing: 1, packing paper body;11, base layer;111, reinforcing layer;112, antibacterial agent;113, retention aid;12, oil-proof layer;13, heat insulation layer;14, barrier layer;15, cleaning layer;151, wood pulp fiber;152, bamboo charcoal fiber. DETAILED DESCRIPTION

[0021] Refer toFigs. 1 to 4 The utility model provides an oil -proof heat -proof food packaging paper, include: packaging paper body 1, packaging paper body 1 includes basic layer 11, and basic layer 11 includes reinforcing layer 111, and add antibacterial agent 112 and retention aid 113 in reinforcing layer 111, and the one side of basic layer 11 is equipped with oil -proof layer 12, and the oil -proof layer 12 outside is equipped with heat -insulating layer 13 and barrier layer 14, and is equipped with cleaning layer 15 on the other side of basic layer 11.

[0022] Specifically, the reinforcing layer 111 is made of nylon fiber material.

[0023] As a preferred embodiment, the nylon fiber material has very strong puncture resistance and impact resistance, high tensile strength, and is suitable for frozen packaging, vacuum packaging and cooking packaging. The nylon film has good barrier property to oil and oxygen and other gases, and is very suitable for food packaging, such as meat, fish, oil food, seafood and food and vegetable products that require high aroma retention; the nylon exhibits transparent, heat formable, hard and flexible properties in a wide temperature range, and has excellent chemical resistance.

[0024] Specifically, the oil -proof layer 12 is made of polyethylene material, and the oil -proof layer 12 is arranged on the outer side of the basic layer 11, the heat -insulating layer 13 is made of polyethylene terephthalate glycol, and the barrier layer 14 is made of water-based barrier coating.

[0025] As a preferred embodiment, by setting the oil -proof layer 12 of polyethylene material, its good environmental protection and chemical stability are used, which meets the food safety standards and is suitable for food with low oil content, such as bread, cakes and the like. The thin coating can not only prevent oil but also maintain the air permeability of the paper bag.

[0026] As a preferred embodiment, by setting the heat -insulating layer 13 of polyethylene terephthalate glycol, it not only has heat -insulating effect, and further plays a role in effectively blocking oil, water vapor and oxygen. It is suitable for food packaging that needs long-term protection, and provides more stable protection effect.

[0027] Specifically, the cleaning layer 15 includes wood pulp fiber 151 and bamboo charcoal fiber 152, and the wood pulp fiber 151 and the bamboo charcoal fiber 152 are compounded by a hydroentangling process.

[0028] As a preferred embodiment, the cleaning layer 15 compounded by the hydroentangling process has unique absorption and liquid absorption capacity, and also has the properties of dust-free, soft, anti-static, not damaging the surface of the object and strong and durable.

[0029] It should be noted that when the packaging paper is used for fast food packaging, oil stains may remain on the hands or mouth after eating the food, at which time the outer side (i.e., the hand-holding side) of the packaging paper, i.e., the cleaning layer 15, can be used to clean the oil stains on the hands or mouth.

[0030] Specifically, the antibacterial agent 112 is silver ion antibacterial material, and the retention aid 113 is inorganic salt material.

[0031] It should be noted that in the pulp treatment, the main role of the antibacterial agent 112 is to inhibit or kill bacteria, fungi, yeast and other microorganisms in the pulp, to prevent the pulp from being contaminated and degraded by microorganisms during storage and processing. Common antibacterial agents 112 include triazine bactericides, which are suitable for neutral, weakly alkaline and alkaline operating environments, and have strong inhibition and killing effect on various gram-positive or negative bacteria, molds and yeasts; the retention aid 113 refers to a substance added during papermaking, mainly used to solve the problem of different filtration speeds of pulp suspension on the network, thereby improving the yield and quality of paper. The retention aid 113 can change the surface properties and fluidity of the medium, and promote the filtration speed and effect.

[0032] Secondly, the retention aid 113 can assist in prolonging the existence time of the antibacterial agent 112 in the paper, and the antibacterial agent 112 and the retention aid 113 can be adsorbed in the pulp fibers by wet part adding method.

[0033] In use, the use of the reinforcing layer and the antibacterial agent included in the base layer makes the packaging paper have strong puncture resistance and impact resistance, high tensile strength, and is suitable for frozen packaging, vacuum packaging and steaming packaging, thereby avoiding tearing of the packaging paper during use, and the use of the antibacterial agent makes the packaging paper have antibacterial effect by the silver ion antibacterial material, prolongs the storage time of food, and the use of the oil-proof layer, the heat insulation layer and the barrier layer makes the packaging paper have oil and water resistance and heat insulation effect, and the use of the wood pulp fibers and the bamboo charcoal fibers included in the cleaning layer makes the packaging paper can be used to wipe the oil stains on the body (hands or mouth) after use, thereby achieving the effect of easy cleaning.

[0034] The oil-proof and heat-insulating food packaging paper of the utility model can effectively solve the problems in the background art, and has the advantages of improved toughness and strength of the packaging paper, anti-tearing effect, and antibacterial and cleaning functions.

Claims

1. An oil-proof and heat-insulating food wrapping paper, comprising: The wrapping paper body (1) is characterized in that the wrapping paper body (1) comprises a base layer (11), the base layer (11) comprises a reinforcing layer (111), and an antibacterial agent (112) and a retention aid (113) are added in the reinforcing layer (111), one side of the base layer (11) is provided with an oil-proof layer (12), the outer side of the oil-proof layer (12) is provided with a heat insulation layer (13) and a barrier layer (14), and the other side of the base layer (11) is provided with a cleaning layer (15).

2. The oil-proof and heat-insulating food packaging paper according to claim 1, characterized in that, The reinforcing layer (111) is made of nylon fiber material.

3. The oil-proof and heat-insulating food packaging paper according to claim 1, characterized in that, The oil-proof layer (12) is made of polyethylene material, and the oil-proof layer (12) is arranged on the outer side of the base layer (11).

4. The oil-proof and heat-insulating food packaging paper according to claim 1, characterized in that, The heat insulation layer (13) is made of polyethylene terephthalate glycol.

5. The oil-proof and heat-insulating food packaging paper according to claim 1, wherein The barrier layer (14) is made of water-based barrier paint.

6. The oil-proof and heat-insulating food packaging paper according to claim 1, wherein The cleaning layer (15) comprises wood pulp fiber (151) and bamboo charcoal fiber (152), and the wood pulp fiber (151) and the bamboo charcoal fiber (152) are compounded by a water jet process.

7. The oil-proof and heat-insulating food packaging paper according to claim 1, wherein The antibacterial agent (112) is made of a silver ion antibacterial material, and the retention aid (113) is made of an inorganic salt material.

Citation Information

Patent Citations

  • Oil-proof food packaging paper

    CN219236421U