Waterproof and air-permeable expansion-eliminating preservative for prefabricated vegetables

Abstract

The utility model discloses a waterproof breathable type prefabricated vegetable swelling eliminating preservative which comprises an absorbent and a wrapping layer used for wrapping the absorbent, and the wrapping layer is formed by sequentially compounding a waterproof breathable film layer, a high-temperature-resistant film layer and an oleophobic film layer from inside to outside. A plurality of air holes I and a plurality of air holes II which are communicated with each other are respectively formed in the surfaces of the high-temperature-resistant film layer and the oleophobic film layer, the high-temperature-resistant film layer and the oleophobic film layer extend towards the periphery and are rolled to form a lockrand, and one side of the high-temperature-resistant film layer and one side of the oleophobic film layer extend outwards to form an extension part. The oleophobic film layer is arranged to reduce attachment of soup on the surface of the wrapping layer so as to reduce inward permeation of the soup, the high temperature resistant film layer is arranged to enhance high temperature resistance of the wrapping layer so that the wrapping layer is not easy to deform and damage when being heated together with the prefabricated dish, and the extending part is arranged to be packaged together with a packaging bag of the prefabricated dish in a hot-pressing manner, so that the packaging bag is convenient to use. A user can conveniently judge the position of the preservative, and the preservative can be prevented from being damaged when the prefabricated vegetable packaging bag is opened.

Description

Technical Field

[0001] The utility model relates to the technical field of food preservation, in particular to a waterproof and breathable degassing preservative for prefabricated dishes. Background Art

[0002] Due to its convenient and fast characteristics, prefabricated dishes are widely popular in modern fast-paced life. However, after packaging, prefabricated dishes often produce a large amount of CO2 gas due to the fermentation of microorganisms such as lactic acid bacteria inside, resulting in the bulging and even rupture of the packaging bag, which not only affects the appearance of the product but also raises consumers' doubts about the product quality, seriously affecting product sales and market development.

[0003] At present, although there are some degassing preservatives on the market, their waterproof performance is not good. After being soaked in the soup of prefabricated dishes for a long time, the soup is easy to penetrate into the preservative, which in turn causes the absorbent in the preservative to fail. Moreover, their heat resistance effect is poor and they are easy to break and leak during the heating process of prefabricated dishes. At the same time, the existing preservatives are generally directly thrown into the packaging bag of prefabricated dishes and are in a free state, which not only accelerates the penetration of the soup, but also when pouring out the prefabricated dishes, the preservative will be poured out together. In addition, when the user opens the packaging bag of prefabricated dishes, there may also be a problem of tearing the preservative and causing leakage.

[0004] Therefore, we propose a waterproof and breathable degassing preservative for prefabricated dishes to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof and breathable degassing preservative for prefabricated dishes to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A waterproof and breathable degassing preservative for prefabricated dishes, comprising an absorbent and a coating layer for wrapping the absorbent. The coating layer is composed of a waterproof and breathable membrane layer, a high-temperature resistant membrane layer and an oil-repellent membrane layer which are compounded in sequence from the inside to the outside. A number of mutually connected pores one and a number of pores two are respectively arranged on the surfaces of the high-temperature resistant membrane layer and the oil-repellent membrane layer. The high-temperature resistant membrane layer and the oil-repellent membrane layer are extended and calendered towards the surrounding to form a lock edge, and one side of the high-temperature resistant membrane layer and the oil-repellent membrane layer extends outwards to form an extension part, and a hanging hole is arranged on the extension part.

[0008] In a further embodiment, a number of reinforcing strips are evenly distributed on the inner surface of the waterproof and breathable membrane layer, and the reinforcing strips protrude from the inner surface of the waterproof and breathable membrane layer.

[0009] In a further embodiment, the positions of the pores one and the pores two overlap each other.

[0010] In a further embodiment, the four corners of the lock edge are all processed with rounded corners.

[0011] In a further embodiment, the length of the extension portion is greater than the width of the coating layer.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing an oleophobic film layer, the present utility model can reduce the attachment of soup on the surface of the coating layer, thereby reducing the inward penetration of the soup. The provided high-temperature resistant film layer can enhance the high-temperature resistance of the coating layer, making it not easily deformed or damaged when heated together with the prefabricated dish. The provided lock edge expands the pressing area of the high-temperature resistant film layer, making the edge of the hot pressing and encapsulation more firm and not easily damaged. The provided extension portion can facilitate the hot pressing and encapsulation with the packaging bag of the prefabricated dish, so that the preservative is relatively fixed with the packaging bag of the prefabricated dish, preventing the preservative from floating in the prefabricated dish. At the same time, the position of the preservative can be exposed at the hanging hole of the extension portion, which is convenient for the user to judge the position of the preservative and is beneficial to avoiding damage to the preservative when opening the packaging bag of the prefabricated dish. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic semi-sectional structural diagram of the present utility model;

[0016] Figure 3 is the present utility model Figure 2 partial enlarged structural diagram at A in;

[0017] Figure 4 is a schematic structural diagram after the present utility model is connected to the packaging bag of the prefabricated dish.

[0018] In the figure: 1, absorbent; 2, coating layer; 21, waterproof and breathable film layer; 211, reinforcing strip; 22, high-temperature resistant film layer; 221, pore one; 23, oleophobic film layer; 231, pore two; 3, lock edge; 4, extension portion; 5, hanging hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0022] Please refer to Figures 1-4 , a waterproof and breathable prefabricated food anti-swelling and freshness-preserving agent, comprising an absorbent 1 and a coating layer 2 for wrapping the absorbent 1. The coating layer 2 is composed of a waterproof and breathable film layer 21, a high-temperature resistant film layer 22, and an oil-repellent film layer 23 from the inside to the outside in sequence. Among them, the high-temperature resistant film layer 22 is made of PVDC material and has a good high-temperature resistant effect. The oil-repellent film layer 23 is a fluorocarbon compound or silicone oil coated on the surface of the high-temperature resistant film layer 22, which can effectively prevent oil penetration and pollution. The waterproof and breathable film layer 21 is a protective layer that can block liquids but allow gases to pass through, effectively preventing soup from penetrating into the absorbent 1. In order to facilitate the absorption of carbon dioxide gas by the absorbent 1, a number of pores 221 are provided on the surface of the high-temperature resistant film layer 22, and a number of pores 231 are provided on the surface of the oil-repellent film layer 23, and the positions of the pores 221 and the pores 231 overlap each other to facilitate communication, thereby facilitating ventilation.

[0023] To improve the durability of the entire coating layer 2, a high-temperature resistant film layer 22 and an oil-repellent film layer 23 are provided to extend and calender around to form a lock edge 3. The lock edge 3 expands the lamination area of the high-temperature resistant film layer 22, making the edge of the hot press packaging more firm and not easily damaged. The four corners of the lock edge 3 are all processed with rounded corners to make its corners smoother, reducing the damage to the dishes when it contacts the dishes. At the same time, a number of reinforcing strips 211 are evenly distributed on the inner surface of the waterproof and breathable film layer 21, and the reinforcing strips 211 protrude from the inner surface of the waterproof and breathable film layer 21, further enhancing the strength of the coating layer 2 and reducing the situation of its deformation.

[0024] One side of the high-temperature resistant film layer 22 and the oil-repellent film layer 23 extends outward to form an extension part 4. A hanging hole 5 is provided on the extension part 4. The length of the extension part 4 is greater than the width of the coating layer 2. The provided extension part 4 can facilitate hot press packaging together with the packaging bag of the pre-made dish, so that the preservative is relatively fixed with the packaging bag of the pre-made dish, preventing the preservative from floating in the pre-made dish. At the same time, the hanging hole 5 of the extension part 4 can expose the packaging bag of the pre-made dish, thus facilitating the user to judge the position of the preservative and being beneficial to avoiding damaging the preservative when opening the packaging bag of the pre-made dish.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0026] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof and breathable pre-prepared food detumescence and fresh-keeping agent, comprising an absorbent (1) and a coating layer (2) for wrapping the absorbent (1), characterized in that: The coating layer (2) is formed by, from the inside to the outside, sequentially compounding a waterproof and breathable membrane layer (21), a high temperature resistant membrane layer (22) and an oleophobic membrane layer (23), and the surfaces of the high temperature resistant membrane layer (22) and the oleophobic membrane layer (23) are respectively provided with a plurality of mutually connected pores one (221) and a plurality of pores two (231), the high temperature resistant membrane layer (22) and the oleophobic membrane layer (23) are extended and rolled in all directions to form a locking edge (3), and one side of the high temperature resistant membrane layer (22) and the oleophobic membrane layer (23) is extended outward to form an extension portion (4), and a hanging hole (5) is provided on the extension portion (4).

2. The waterproof and breathable pre-prepared food detumescence and fresh-keeping agent according to claim 1, characterized in that: A plurality of reinforcement strips (211) are evenly distributed on the inner surface of the waterproof and breathable membrane layer (21), and the reinforcement strips (211) protrude from the inner surface of the waterproof and breathable membrane layer (21).

3. The waterproof and breathable pre-prepared food detumescence and fresh-keeping agent according to claim 1, characterized in that: The positions of the air hole 1 (221) and the air hole 2 (231) overlap each other.

4. The waterproof and breathable pre-prepared food detumescence and fresh-keeping agent according to claim 1, characterized in that: The four corners of the locking edge (3) are all rounded.

5. The waterproof and breathable pre-prepared food detumescence and fresh-keeping agent according to claim 1, characterized in that: The length of the extension portion (4) is greater than the width of the coating layer (2).

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