Membrane material structure for organic deoxidizer

Abstract

The utility model relates to the technical field of packaging film materials, in particular to a film material structure for an organic deoxidizer, which comprises a base material layer used for forming a basic structure of the film material. The waterproof layer covers one surface of the base material layer and is used for preventing water from permeating the membrane material; the breathable layer is arranged on the other surface of the base material layer, and breathable holes are formed in the breathable layer; the water absorption layer is arranged between the base material layer and the breathable layer and is used for absorbing moisture generated by the reaction of the deoxidizing agent. According to the utility model, moisture leakage generated by a deoxidizing agent reaction can be effectively reduced, and a packaging bag is kept dry and clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing film material technical field especially for organic type deoxidizer's film material structure. BACKGROUND

[0002] Deoxidizer is a kind of chemical product widely used in food preservation, medicine drying, metal rust prevention and other fields. Its main function is to absorb the oxygen in the packaging bag, thereby prolonging the shelf life of the product and protecting the product from oxidative damage. The common components of deoxidizer include iron powder, activated carbon, ascorbic acid, oleic acid, etc., and ascorbic acid, oleic acid and other organic deoxidizers will react with oxygen to generate water when in contact with oxygen.

[0003] In the existing deoxidizer packaging design, a hole is usually punched on the packaging film material to ensure that the deoxidizer can contact with the outside air, realizing the absorption of oxygen and the emission of carbon dioxide. However, since the water generated in the reaction process of deoxidizer will leak out through the pores on the film material, resulting in spots on the surface of the packaging bag, affecting the appearance of the product and the perception of the product quality by consumers. SUMMARY

[0004] In order to effectively reduce the leakage of water generated by the reaction of deoxidizer and keep the packaging bag dry and clean, the present application provides a film material structure for organic deoxidizer.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] The film material structure for organic deoxidizer comprises: a base material layer for constituting the basic structure of the film material; a water-blocking layer covering one side of the base material layer for blocking the penetration of water through the film material; a gas-permeable layer provided on the other side of the base material layer, the gas-permeable layer being provided with gas-permeable holes; and a water-absorbing layer provided between the base material layer and the gas-permeable layer for absorbing the water generated by the reaction of deoxidizer.

[0007] By adopting the above device, by setting the water-blocking layer covering one side of the base material layer, the film material structure of the utility model can effectively block the penetration of water generated in the reaction process of deoxidizer through the film material, thereby avoiding the leakage of water to the outside of the packaging bag and keeping the packaging bag dry and clean. The gas-permeable layer and the gas-permeable holes on the gas-permeable layer allow oxygen to penetrate into the packaging interior, while also allowing carbon dioxide generated by the reaction of deoxidizer to be discharged outside the packaging bag, ensuring that deoxidizer can efficiently absorb oxygen and emit carbon dioxide, and guaranteeing the deoxidizing efficiency of deoxidizer. The water-absorbing layer is used to absorb the water generated by the reaction of deoxidizer, further enhancing the control ability of the film material structure on water, reducing the pollution of water to the surface of the film material, and also helping to maintain the stability of deoxidizer and prolong its service life.

[0008] Preferably, the substrate layer, the water barrier layer and the gas permeable layer are combined together by a heat pressing or bonding process.

[0009] By using the above device, the heat pressing or bonding process can realize the close combination of each layer without damaging the original performance of the gas permeable layer and the water barrier layer, so that the gas permeability of the gas permeable layer and the waterproof performance of the water barrier layer can be effectively maintained, ensuring the functionality of the film structure.

[0010] Preferably, the substrate layer is made of ES fiber non-woven fabric material, and the thickness of the substrate layer is 0.2-0.3mm.

[0011] By using the above device, the ES fiber non-woven fabric material is used as the substrate layer, which can provide good mechanical strength and tensile resistance due to the characteristics of its fiber structure, so that the film structure is more durable and stable. At the same time, the ES fiber non-woven fabric material has good flexibility, so that the film structure is not easy to break during folding, bending or processing.

[0012] Preferably, the water barrier layer is made of PTFE film material, and the thickness of the water barrier layer is 0.1-0.2mm.

[0013] By using the above device, due to the non-polar characteristics and low surface energy of PTFE, the material has excellent waterproof performance, effectively preventing water from penetrating the film and maintaining a dry environment inside the package. However, its microporous structure also allows a certain degree of gas permeability, which helps to maintain the gas exchange inside the package.

[0014] Preferably, the gas permeable layer is made of PP or PE material, and the thickness of the gas permeable layer is 0.1-0.2mm.

[0015] By using the above device, the gas permeable layer made of PP (polypropylene) or PE (polyethylene) material can effectively control the permeability of gas due to the porous structure or microporous technology of these materials, allowing oxygen to enter the inside of the film to activate the deoxidizer, while expelling carbon dioxide, ensuring the efficient operation of the deoxidizer.

[0016] Preferably, the water absorbing layer is made of polypropylene or polyester fiber, and the thickness of the water absorbing layer is 0.1-0.2mm.

[0017] By using the above device, the polypropylene or polyester fiber is used as the water absorbing layer material, which can absorb the moisture generated during the deoxidizer reaction due to its high water absorption, reducing the seepage of moisture to reduce the occurrence of spots on the surface of the deoxidizer package. At the same time, it helps to maintain a dry environment inside the package, reduces the potential damage of moisture to other materials inside the package, and maintains the stability and effectiveness of the deoxidizer.

[0018] Preferably, the plurality of air vents are evenly distributed on the air permeable layer.

[0019] Preferably, the air vents have a diameter of 2-3 mm, and the distance between the adjacent air vents is 3-4 mm.

[0020] By using the above device, the appropriate air vent diameter and spacing can increase the contact area between the deoxidizer and oxygen, thereby improving the deoxidizing performance of the deoxidizer.

[0021] The present application has the following beneficial effects:

[0022] 1. In the present application, by setting the water-blocking layer on one side of the base material layer, the film material structure of the present application can effectively block the moisture generated during the deoxidizer reaction from penetrating the film material, thereby avoiding the leakage of moisture to the outside of the packaging bag and maintaining the dryness and cleanliness of the packaging bag. The air permeable layer and the air vents on the air permeable layer allow oxygen to penetrate the film material into the packaging interior, and also allow the carbon dioxide generated by the deoxidizer reaction to be discharged outside the packaging bag, ensuring that the deoxidizer can efficiently absorb oxygen and discharge carbon dioxide, and ensuring the deoxidizing efficiency of the deoxidizer. The water absorption layer is used to absorb the moisture generated by the deoxidizer reaction, further enhancing the moisture control ability of the film material structure, reducing the pollution of the film material surface by moisture, and also helping to maintain the stability of the deoxidizer and prolong its service life.

[0023] 2. In the present application, the water-blocking layer is made of PTFE material, and the non-polar characteristics and low surface energy of PTFE make the material have excellent waterproof performance, effectively preventing moisture from penetrating the film material and maintaining a dry environment inside the packaging, but the microporous structure also allows a certain degree of air permeability, which helps to maintain gas exchange inside the packaging. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the film material structure for organic deoxidizer of the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1. Base material layer; 2. Water-blocking layer; 3. Air permeable layer; 31. Air vent; 4. Water absorption layer. DETAILED DESCRIPTION

[0027] The following will be described in detail in combination with the accompanying drawings Figure 1 The present application will be further described in detail.

[0028] The film material structure for organic deoxidizer, such as Figure 1As shown, it comprises a substrate layer 1, a water barrier layer 2 and a breathable layer 3. Among them, the substrate layer 1 is used to constitute the basic structure of the film material, and the substrate layer 1 is located between the water barrier layer 2 and the breathable layer 3. From inside to outside of the film material, it is breathable layer 3, substrate layer 1, water barrier layer 2. The water barrier layer 2 is located on the outermost side of the film material, which is used to block the moisture in the film material from penetrating the film material. The breathable layer 3 can permeate oxygen and carbon dioxide, realizing the performance of the film material absorbing oxygen and discharging carbon dioxide. In addition, the water absorption layer is also provided between the material layer and the breathable layer 3, which effectively absorbs the moisture generated after the deoxidizer reacts, prevents the moisture from penetrating to the surface of the film material, and achieves the effect of preventing water leakage while ensuring high-efficiency deoxidization.

[0029] Specifically, as shown in the figure, Figure 1 The substrate layer 1 is made of ES fiber non-woven fabric, and the thickness of the substrate layer 1 is 0.2-0.3mm, and the specific embodiment of this embodiment is 0.2mm, and the other embodiments can be selected as 0.3mm. The ES fiber non-woven fabric has good mechanical strength and tensile resistance, so that the film material structure is more durable, and the ES fiber non-woven fabric material has good flexibility, so that the film material structure is not easy to be damaged in folding, bending or processing process.

[0030] The breathable layer 3 is made of PP material or PE material. The PP material has good air permeability and chemical resistance, which is suitable for use as the breathable layer 3; and the air permeability and water resistance of the PE material are better, which is also suitable for packaging film material. Among them, the thickness of the breathable layer 3 is 0.1-0.2mm, and the specific embodiment of this embodiment is 0.1mm, and the other embodiments can be selected as 0.2mm. In addition, the breathable layer 3 is tightly combined with the substrate layer 1 through hot pressing or bonding process, which ensures the firmness of the overall structure of the film material.

[0031] As shown in the figure, Figure 1 In order to achieve better air permeability, a plurality of uniformly arranged air holes 31 are arranged on the breathable layer 3. Among them, the diameter of the air hole 31 is 2-3mm, and the spacing between the adjacent two air holes 31 is 3-4mm. In this embodiment, the diameter of the air hole 31 is 2mm, and the spacing between the adjacent two air holes 31 is 3mm. By arranging the uniformly distributed air holes 31, the gas exchange between the inside of the deoxidizer package and the outside environment is more uniform and effective, thereby improving the deoxidization efficiency of the deoxidizer. At the same time, by controlling the number and distribution of the air holes 31, it can prevent the deoxidizer from being reduced in activity or the internal environment of the package from being out of control due to excessive air permeability.

[0032] As shown in the figure, Figure 1As shown, the water-blocking layer 2 is made of PTFE film material, and the thickness of the water-blocking layer 2 is 0.1-0.2mm, and the specific embodiment is 0.1mm, and the other embodiments can be selected as 0.2mm. The water-blocking layer 2 is tightly attached to the substrate layer 1 by a hot pressing or adhesive process, and the water-blocking performance of the polytetrafluoroethylene film is used to avoid moisture penetration while not affecting the permeability of oxygen and carbon dioxide. The water-blocking layer 2 as the outermost layer of the film material can effectively prevent moisture from penetrating the film material, maintain a dry environment on the surface of the film material, and reduce the possibility of spots on the surface of the film material due to moisture penetration.

[0033] As shown in the drawings, Figure 1 The water-absorbing layer is made of polypropylene or polyester fiber material, and the polypropylene material has excellent water absorption and water-blocking performance, which can effectively absorb the moisture generated by the deoxidizing agent reaction; and the polyester fiber also has good water absorption performance and is suitable for packaging film material. The thickness of the water-absorbing layer is 0.1-0.2mm, and the specific embodiment is 0.1mm, and the other embodiments can be selected as 0.2mm. The water-absorbing layer and the water-blocking layer 2 constitute a double guarantee for the waterproof performance of the film material structure of the present embodiment, effectively reducing the moisture penetration to the surface of the film material generated by the deoxidizing agent reaction.

[0034] Working principle: through reasonable composite design, the film material structure has high efficient oxygen absorption performance and excellent waterproof effect. The substrate layer 1 is used as the main supporting material to provide strength support for the overall structure; the water-blocking layer 2 and the water-absorbing layer are complementary to each other, the former effectively blocks the water from entering the outside, and the latter absorbs the moisture generated by the deoxidizing agent inside; the air-permeable layer 3 ensures the free flow of oxygen, and finally through the close cooperation between the layers, the problem of moisture leakage in the existing film material design is solved, and the practicability and aesthetic degree of the product are improved.

[0035] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A membrane structure for an organic deoxidizer, characterized by, Include: The base material layer (1) is used to constitute the base structure of the film material; Water barrier layer (2), covering one side of the base material layer (1), used to block moisture through the film material; The air permeable layer (3) is provided on the other side of the base material layer (1), and the air permeable layer (3) is provided with air permeable holes (31); The water absorption layer (4) is provided between the base material layer (1) and the air permeable layer (3), which is used to absorb the moisture generated by the deoxidizing agent reaction.

2. The membrane structure for an organic deoxidizer according to claim 1, wherein The base material layer (1), water barrier layer (2) and air permeable layer (3) are combined by hot pressing or adhesive process.

3. The membrane structure for an organic deoxidizer according to claim 1, wherein The base material layer (1) is made of ES fiber non-woven fabric material, and the thickness of the base material layer (1) is 0.2-0.3mm.

4. The membrane structure for an organic deoxidizer according to claim 1, wherein The water barrier layer (2) is made of PTFE film material, and the thickness of the water barrier layer (2) is 0.1-0.2mm.

5. The membrane structure for an organic deoxidizer according to claim 1, wherein The air permeable layer (3) is made of PP or PE material, and the thickness of the air permeable layer (3) is 0.1-0.2mm.

6. The membrane structure for an organic deoxidizer according to claim 1, wherein The water absorption layer (4) is made of polypropylene or polyester fiber, and the thickness of the water absorption layer (4) is 0.1-0.2mm.

7. The membrane structure for an organic deoxidizer according to claim 1, wherein The air permeable holes (31) are provided with a plurality of air permeable holes (31), which are uniformly distributed on the air permeable layer (3).

8. The membrane structure for an organic deoxidizer according to claim 1, wherein The diameter of the air permeable hole (31) is 2-3mm, and the distance between the adjacent two air permeable holes (31) is 3-4mm.

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