Rust inhibitor packaging structure

Abstract

The utility model belongs to the field of corrosion inhibitors, and relates to a corrosion inhibitor packaging structure which comprises a bag body, the bag body is formed by compositing a first packaging layer and a second packaging layer, and the periphery of the first packaging layer and the periphery of the second packaging layer are composited in a hot pressing mode to form a sealing edge. A closed containing cavity is formed after the first packaging layer and the second packaging layer are compounded, and the containing cavity is filled with drying agent powder. The first packaging layer is a VAP film. After the structure is adopted, the beneficial effects are that the drying agent powder can be effectively prevented from being in contact with metal to cause corrosion, and gas-phase anti-rust gas in the drying agent powder can be effectively volatilized.

Description

Technical Field

[0001] This utility model belongs to the field of rust inhibitor technology, specifically, it relates to a rust inhibitor packaging structure. Background Technology

[0002] Currently, desiccants (rust inhibitors) widely used in metal protection typically come into direct contact with metal surfaces during the packaging process. For physically adsorbed desiccants, their performance is susceptible to temperature fluctuations, which can lead to "re-moistening" or "water leakage," where the desiccant releases previously adsorbed moisture under adverse conditions, subsequently causing corrosion of metal components. In contrast, while chemically adsorbed desiccants can rapidly capture moisture from the air due to their quick absorption properties, this process is accompanied by directional moisture migration, meaning moisture is efficiently concentrated at the desiccant's location. During this moisture accumulation and absorption process, the metal surface may experience a brief but riskier exposure period, leading to rust formation and affecting the metal's quality and durability. Therefore, improvements are necessary. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a rust inhibitor packaging structure that can effectively prevent rust from occurring when the desiccant comes into contact with metal, and also allows the rust-preventing gas inside the desiccant to volatilize effectively.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] As one aspect of this utility model, a rust inhibitor packaging structure is proposed, which includes: a bag body, the bag body being composed of a first packaging layer and a second packaging layer, with the first packaging layer and the second packaging layer forming a sealed edge around their perimeter;

[0006] The first packaging layer and the second packaging layer form a sealed cavity after lamination, and the cavity is filled with desiccant powder; the first packaging layer is a VAP film.

[0007] Alternatively, the second packaging layer is composed of a polyethylene film layer and a non-woven fabric layer, with the polyethylene film layer located on the inside and the non-woven fabric layer located on the outside.

[0008] Alternatively, the bag body may be rectangular.

[0009] Optionally, the polyethylene film layer has a plurality of through holes evenly distributed thereon.

[0010] Alternatively, the nonwoven layer may be a polyester plain weave nonwoven fabric.

[0011] The beneficial effects of the rust inhibitor packaging structure of this utility model are specifically reflected in the following aspects: liquid water or water droplets cannot permeate out of the VAP membrane, preventing them from contacting the metal phase; the non-woven fabric layer has good anti-leakage and air permeability of desiccant powder, and has high tensile strength, making it not easily damaged; it can effectively prevent desiccant powder from contacting metal and causing rust, and can also allow the internal gas phase rust-preventive gas of the desiccant powder to volatilize effectively. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0013] Figure 1 This is a schematic diagram of the rust inhibitor packaging structure of this utility model. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] One embodiment of this application provides a rust inhibitor packaging structure, such as... Figure 1 As shown, it includes: a bag body 1, which is rectangular; the bag body 1 is composed of a first packaging layer 11 and a second packaging layer 12, and a sealing edge 13 is formed around the first packaging layer 11 and the second packaging layer 12. The sealing edge 13 is formed by a hot-pressing composite method. It should be noted that the composite method is existing technology and will not be described in detail.

[0016] After being laminated, the first packaging layer 11 and the second packaging layer 12 form a sealed cavity 14, which is filled with desiccant powder 15. It should be noted that the desiccant powder 15 is prior art and will not be described in detail here.

[0017] In one embodiment, the first packaging layer 11 is a VAP film, which is a VAP one-way breathable membrane, a prior art technology. Its working principle is based on the size difference between water droplets and gas molecules. The size of air molecules is on the order of nanometers, about 0.3 to 0.4 nm. The surface of the VAP film has dense pores, the size of which is on the order of micrometers, which can allow air molecules to pass through smoothly. The particle size of liquid water molecules is much larger than the diameter of the micropores of the VAP film. Therefore, liquid water or water droplets cannot permeate out of the VAP film, preventing them from contacting the metal phase.

[0018] In one embodiment, the second packaging layer 12 is composed of a polyethylene film layer 121 and a non-woven fabric layer 122. It should be noted that the composite method is existing technology and will not be described in detail here. The polyethylene film layer 121 is located on the inner side, and the non-woven fabric layer 122 is located on the outer side. The polyethylene film layer 121 has a plurality of through holes evenly distributed on it. The through holes are punched by the needle-punching roller of the coating and baking machine. It should be noted that the structure and operation of the coating and baking machine and the needle-punching roller are existing technologies and will not be described in detail here. The non-woven fabric layer 122 is a polyester plain weave non-woven fabric, which has good anti-leakage and air permeability of desiccant powder 15, and has high tensile strength and is not easily damaged.

[0019] As described above, using this rust inhibitor packaging structure can effectively prevent rust from occurring when the desiccant powder comes into contact with the metal, and can also effectively volatilize the internal gaseous rust-preventing gas of the desiccant powder.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A rust inhibitor packaging structure, characterized in that, It includes a bag body, The bag body is composed of a first packaging layer and a second packaging layer, and the four sides of the first packaging layer and the second packaging layer form a sealing edge; A closed containing cavity is formed between the first packaging layer and the second packaging layer after compounding, and the containing cavity is filled with desiccant powder; the first packaging layer is a VAP film.

2. The rust-preventive agent packaging structure according to claim 1, wherein The second packaging layer is composed of a polyethylene film layer and a non-woven fabric layer, and the polyethylene film layer is located on the inner side and the non-woven fabric layer is located on the outer side.

3. The rust-preventive agent packaging structure according to claim 1, wherein The bag body is rectangular.

4. The rust-preventive agent packaging structure according to claim 2, wherein The polyethylene film layer is uniformly distributed with a plurality of through holes.

5. The rust-preventive agent packaging structure according to claim 2 or 4, wherein The non-woven fabric layer is polyester plain non-woven fabric.

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