A zero-addition juice microorganism lock fresh packaging structure

Abstract

The utility model belongs to packaging structure technical field discloses a kind of zero addition juice microbial fresh-keeping packaging structure, including bottle body, the bottle mouth of bottle body is covered with disposable sealing film, the bottle mouth of bottle body is threadedly matched and connected with bottle cap, further include: flexible fresh-keeping inner container, the top opening edge of flexible fresh-keeping inner container is sealedly installed between the bottle mouth of bottle body and bottle cap by sealing ring, and the bottom of flexible fresh-keeping inner container is free end, and interlayer cavity is formed between bottle body, flexible fresh-keeping inner container and sealing ring;One-way ventilation module, one-way valve of one-way ventilation module, the outlet end of one-way valve is installed with microbial filter membrane, one-way valve only allows gas to flow from interlayer cavity to outside, and pass through microbial filter membrane to block microorganism passing through.The utility model is through flexible inner container contraction exhaust, one-way microbial filter membrane and triple technology of negative pressure environment, completely replace chemical preservative, realize long-lasting preservation after opening without refrigeration, fit the health needs of zero addition.

Description

Technical Field

[0001] This utility model relates to the field of packaging structure technology, and in particular to a zero-additive fruit juice microbial freshness-locking packaging structure. Background Technology

[0002] As consumers pay increasing attention to healthy eating, "zero-additive" juice products are becoming more and more popular in the market. These products do not rely on chemical preservatives; their preservation depends entirely on physical methods, such as pasteurization and high-temperature instantaneous sterilization. However, once the packaging is opened, microorganisms in the environment (such as mold, yeast, and aerobic bacteria) will enter the packaging with the air and multiply rapidly in the nutrient-rich juice, causing the product to spoil in a short period of time.

[0003] In existing technologies, the following methods are commonly used to solve the problem of preservation after opening: refrigeration: relies on an external refrigerator, is inconvenient, and can only delay rather than stop the growth of microorganisms; vacuum pump: manually extracts internal air, is cumbersome to operate, and cannot maintain a vacuum state continuously; chemical preservatives: contradict the concept of "zero additives". Therefore, we propose a zero-additive juice microbial freshness-locking packaging structure. Utility Model Content

[0004] In view of the problems existing in the above-mentioned preservation methods, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A zero-additive juice microbial preservation packaging structure includes a bottle body, the bottle mouth of which is covered with a disposable sealing film, and a bottle cap threadedly connected to the bottle mouth. It also includes: A flexible fresh-locking inner liner is installed inside the bottle body. The top opening edge of the flexible fresh-locking inner liner is sealed between the bottle mouth and the bottle cap of the bottle body by a sealing ring, and the bottom of the flexible fresh-locking inner liner is a free end. A sandwich cavity is formed between the bottle body, the flexible fresh-locking inner liner and the sealing ring. A one-way ventilation module includes a one-way valve installed on the sealing ring. A microbial filter membrane is installed at the outlet end of the one-way valve. The one-way valve only allows gas to flow from the interlayer cavity to the outside and blocks microorganisms from passing through the microbial filter membrane.

[0006] As a technical solution of the zero-additive juice microbial freshness-locking packaging structure of this utility model, the bottle cap is also equipped with a puncture device for piercing the disposable sealing film when it is first opened.

[0007] As a technical solution of the zero-additive fruit juice microbial fresh-locking packaging structure of this utility model, the flexible fresh-locking inner liner is made of multi-layer co-extruded food-grade barrier film or aluminum-plastic composite film.

[0008] As a technical solution of the zero-additive fruit juice microbial freshness-locking packaging structure of this utility model, the flexible freshness-locking inner liner is initially filled with fruit juice and is in an expanded state, and the interior is a negative pressure or normal pressure environment.

[0009] As a technical solution of the zero-additive fruit juice microbial freshness-locking packaging structure of this utility model, the microbial filter membrane has a pore size of 0.22 micrometers to 0.45 micrometers.

[0010] As a technical solution of the zero-additive juice microbial fresh-locking packaging structure of this utility model, wherein: the inner bottom of the bottle is equipped with an annular support step for supporting and limiting the excessive contraction of the flexible fresh-locking inner liner when the juice is about to run out, and preventing it from wrinkling and blocking the liquid outlet.

[0011] As a technical solution of the zero-additive juice microbial fresh-locking packaging structure of this utility model, the bottle body is made of transparent or semi-transparent material, and the outer wall of the bottle body is provided with volume scales corresponding to the contraction state of the flexible fresh-locking inner liner.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model completely replaces chemical preservatives through a triple technology of flexible inner liner shrinkage and venting, one-way microbial filtration membrane and negative pressure environment, achieving long-lasting freshness without refrigeration after opening, meeting the health needs of zero additives.

[0013] 2. This utility model solves the problems of easy deterioration and waste after traditional packaging is opened by automatically puncturing and opening the packaging, and visually monitoring the drinking process and remaining amount through the anti-clogging support structure. At the same time, it takes into account portability and practicality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the bottle structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the bottle cap structure of this utility model.

[0017] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Bottle body; 101. Disposable sealing film; 102. Volume scale; 2. Bottle cap; 201. Puncture piece; 3. Flexible fresh-locking inner liner; 4. Sealing ring; 5. Interlayer cavity; 6. One-way valve; 7. Microbial filter membrane; 8. Annular support step. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-5 A zero-additive juice microbial freshness-locking packaging structure is provided. This zero-additive juice microbial freshness-locking packaging structure includes a bottle body 1, the bottle mouth of the bottle body 1 is covered with a disposable sealing film 101, and a bottle cap 2 is threadedly connected to the bottle mouth of the bottle body 1. It also includes: The flexible fresh-locking inner liner 3 is installed inside the bottle body 1. The top opening edge of the flexible fresh-locking inner liner 3 is sealed between the bottle mouth and the bottle cap 2 of the bottle body 1 by a sealing ring 4 (made of food-grade silicone material). The bottom of the flexible fresh-locking inner liner 3 is a free end. A sandwich cavity 5 is formed between the bottle body 1, the flexible fresh-locking inner liner 3, and the sealing ring 4. In application, the design of the flexible fresh-locking inner liner 3 and the sandwich cavity 5 allows the juice to be discharged by the contraction of the flexible fresh-locking inner liner 3, avoiding air backflow and physically isolating microbial contamination (such as mold and yeast). The one-way ventilation module includes a one-way valve 6 (such as a miniature duckbill valve structure) installed on the sealing ring 4. A microbial filter membrane 7 (such as a PTFE microbial filter membrane) is installed at the outlet end of the one-way valve 6. The one-way valve 6 only allows gas to flow from the interlayer cavity 5 to the outside, and blocks microorganisms from passing through through the microbial filter membrane 7. In application, the design of the one-way valve 6 and the microbial filter membrane 7 allows internal gas (such as CO2) to escape, while the microbial filter membrane 7 blocks external microorganisms from entering, thus achieving continuous freshness after opening.

[0022] Reference Figure 1 and Figure 3The bottle cap 2 is also equipped with a puncture element 201 for piercing the disposable sealing film 101 when it is first opened. For example, the top wall of the bottle cap 2 is injection molded with a pointed cone-shaped protrusion, which is height matched to the position of the disposable sealing film 101. In application, the design of the puncture element 201 automatically pierces the disposable sealing film 101 when it is first opened, avoiding manual contact and contamination, thereby improving hygiene and convenience.

[0023] Reference Figure 2 and Figure 4 The flexible fresh-locking inner liner 3 is made of multi-layer co-extruded food-grade barrier film or aluminum-plastic composite film. In application, the material selection and design of the flexible fresh-locking inner liner 3, in which the multi-layer co-extruded barrier film or aluminum-plastic composite film has high oxygen barrier properties, flexibility and food safety, so as to extend the shelf life of juice.

[0024] Reference Figure 2 and Figure 4 The flexible fresh-locking inner liner 3 is initially filled with juice and is in an expanded state with a negative pressure or normal pressure environment inside. In application, the negative pressure / normal pressure environment design means that the flexible fresh-locking inner liner 3 is initially filled with liquid and expands. As the juice is consumed, a negative pressure is formed to inhibit the growth of microorganisms.

[0025] Reference Figure 4 and Figure 5 The pore size of the microbial filter membrane 7 is 0.22 micrometers to 0.45 micrometers (e.g., 0.3 μm). In application, the microbial filter membrane 7 is designed with a limited pore size of 0.22–0.45 μm to accurately intercept common putrefactive microorganisms (such as bacteria and mold), balancing ventilation efficiency and filtration effect.

[0026] Reference Figure 2 and Figure 4 The bottom of the bottle body 1 is equipped with an annular support step 8 to support and limit the excessive contraction of the flexible freshness-locking inner liner 3 when the juice is about to run out, preventing it from wrinkling and clogging the outlet. The inner diameter of the annular support step 8 is larger than the minimum diameter of the flexible freshness-locking inner liner 3 after contraction, leaving room for contraction. In application, the design of the annular support step 8 can prevent the flexible freshness-locking inner liner 3 from excessively contracting and wrinkling, which would cause blockage, and ensure that the juice is completely discharged to reduce waste.

[0027] Reference Figures 1-5 The bottle body 1 is made of transparent (such as PET material) or semi-transparent material, and the outer wall of the bottle body 1 is provided with volume scale 102 corresponding to the contracted state of the flexible freshness-locking inner liner 3. In application, the volume scale 102 is designed for visualization. The transparent bottle body 1, together with the volume scale 102, intuitively displays the remaining amount of juice to improve the user experience.

[0028] The working principle of this utility model is as follows: First opening stage: First, rotate the bottle cap 2 counterclockwise, and the built-in piercing piece 201 presses down to pierce the disposable sealing film 101. Then, after the bottle cap 2 is completely separated, the juice in the flexible freshness-locking inner liner 3 can be poured directly. Freshness-locking operation stage: When pouring, the flexible freshness-locking inner liner 3 contracts as the liquid level drops, reducing the internal volume. The contraction of the flexible freshness-locking inner liner 3 compresses the air in the interlayer cavity 5, forming a positive pressure. During this period, the air in the interlayer cavity 5 is discharged through the one-way valve 6, and the microbial filter membrane 7 blocks external bacteria / mold from entering. At the same time, the flexible freshness-locking inner liner 3 continues to contract to form a negative pressure environment, inhibiting the reproduction of microorganisms. Final anti-clogging stage: When about 10% of the juice remains in the flexible fresh-locking inner liner 3, the bottom of the flexible fresh-locking inner liner 3 contacts the annular support step 8. At this time, the annular support step 8 prevents the flexible fresh-locking inner liner 3 from wrinkling and sticking together, so as to ensure that the juice is completely discharged.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A zero-additive juice microbial freshness-locking packaging structure, comprising a bottle body (1), wherein the bottle mouth of the bottle body (1) is covered with a disposable sealing film (101), and a bottle cap (2) is threadedly connected to the bottle mouth of the bottle body (1), characterized in that: Also includes: A flexible fresh-locking inner liner (3) is installed inside the bottle body (1). The top opening edge of the flexible fresh-locking inner liner (3) is sealed between the bottle mouth of the bottle body (1) and the bottle cap (2) by a sealing ring (4). The bottom of the flexible fresh-locking inner liner (3) is a free end. A sandwich cavity (5) is formed between the bottle body (1), the flexible fresh-locking inner liner (3) and the sealing ring (4). A one-way ventilation module includes a one-way valve (6) installed on the sealing ring (4). A microbial filter membrane (7) is installed at the outlet end of the one-way valve (6). The one-way valve (6) only allows gas to flow from the interlayer cavity (5) to the outside and blocks microorganisms from passing through the microbial filter membrane (7).

2. The zero-additive fruit juice microbial freshness-locking packaging structure according to claim 1, characterized in that: The bottle cap (2) is also equipped with a puncture device (201) for puncturing the disposable sealing film (101) when it is first opened.

3. The zero-additive fruit juice microbial freshness-locking packaging structure according to claim 1, characterized in that: The flexible fresh-locking inner liner (3) is made of multi-layer co-extruded food-grade barrier film or aluminum-plastic composite film.

4. The zero-additive fruit juice microbial freshness-locking packaging structure according to claim 1, characterized in that: The flexible freshness-locking inner liner (3) is initially filled with juice and is in an expanded state, with the interior under negative or normal pressure.

5. The zero-additive fruit juice microbial freshness-locking packaging structure according to claim 1, characterized in that: The pore size of the microbial filter membrane (7) is from 0.22 micrometers to 0.45 micrometers.

6. The zero-additive fruit juice microbial freshness-locking packaging structure according to claim 1, characterized in that: The bottom of the bottle body (1) is equipped with an annular support step (8) for supporting and limiting the excessive contraction of the flexible freshness-locking inner liner (3) when the juice is about to run out, and preventing it from wrinkling and blocking the liquid outlet.

7. The zero-additive fruit juice microbial freshness-locking packaging structure according to any one of claims 1-6, characterized in that: The bottle body (1) is made of transparent or semi-transparent material, and the outer wall of the bottle body (1) is provided with volume scale (102) corresponding to the contracted state of the flexible fresh-locking inner liner (3).

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