A vacuum tea bag for Wuyi rock tea

Abstract

This utility model discloses a vacuum tea bag for Wuyi rock tea, belonging to the field of tea packaging technology. The tea bag includes a bag body, a vacuum separator strip, and a triple-sealing structure. The bag body contains an inner aluminum film and an outer plastic film; the vacuum separator strip is made of food-grade active material, which fuses with the inner aluminum film after being heated and compressed; the triple-sealing structure seals the tea bag at points 3cm, 2cm (with the vacuum separator strip), and 1cm from the opening. Furthermore, this design is suitable for Wuyi rock tea harvested from small to medium-sized leaves, resulting in finer and more compact tea leaves. This utility model solves the problem of Wuyi rock tea being unable to be vacuum-packed due to its large, easily broken leaves and insufficient airtightness of the tea bag. It can compress volume, preserve aroma, achieve long-term storage, and ensure tea quality.

Description

Technical Field

[0001] This utility model relates to the field of tea packaging technology, specifically to a vacuum tea bag suitable for Wuyi rock tea. In particular, taking into account the curled and strip-like shape of Wuyi rock tea, the invention improves the structure and sealing method of the tea bag to achieve vacuum packaging of Wuyi rock tea, thereby extending the shelf life of the tea and maintaining its quality. Background Technology

[0002] Fujian oolong tea includes three main categories: Wuyi Rock Tea, Anxi Tieguanyin, and Zhangping Narcissus, all of which are semi-fermented teas. Vacuum packaging can effectively isolate the tea from air and moisture for a long time, locking in the freshness of the dry tea and extending its optimal drinking period.

[0003] Currently, Anxi Tieguanyin tea, with its tightly rolled spherical shape, and Zhangping Narcissus tea, with its blocky shape, are not easily broken during vacuuming and can be vacuum-packed for long-term storage.

[0004] However, the following characteristics of Wuyi rock tea have prevented its vacuum packaging from being widely adopted in the production area:

[0005] The tea leaves are relatively large: Traditional Wuyi rock tea is mostly harvested from medium-sized or large-sized leaves, which makes the tea leaves relatively large and not suitable for vacuum packaging.

[0006] Dry tea leaves are easily broken and brittle: Wuyi rock tea has an extremely low moisture content. Using the existing single-layer tea bag vacuum method, the tea leaves will be directly crushed and broken under pressure.

[0007] Existing tea bags are relatively thick: Wuyi rock tea tea bags are typically 50% thicker than other oolong tea tea bags. While this helps protect the integrity of the tea leaves to some extent, it limits the airtightness of the bag and prevents it from achieving a complete vacuum. Conventional Wuyi rock tea tea bags only have two layers of material: a plastic film and an aluminum foil. The aluminum foil is bonded together after heating and pressing at the sealing point to create a seal, but this cannot achieve 100% vacuum, allowing the dry tea leaves to easily come into contact with air and moisture. Utility Model Content

[0008] This invention aims to solve the technical problem that Wuyi rock tea cannot be vacuum packaged due to its large tea leaves, easy breakage and fragility, and insufficient airtightness of existing tea bags.

[0009] To solve the above problems, this utility model provides a vacuum brewing bag for Wuyi rock tea, adopting the following technical solution:

[0010] The tea bag itself is made of materials suitable for Wuyi rock tea packaging, which, while ensuring a certain level of protection, creates conditions for subsequent vacuum processing and sealing.

[0011] Vacuum isolation strip: Made of food-grade active material, its shape conforms to the blister pack body. After being heated and compressed, the isolation strip can fuse with the aluminum film material inside the blister pack body, effectively isolating external air and moisture.

[0012] Triple sealing structure:

[0013] First sealing: After filling the tea bag with tea leaves and vacuuming it, a first seal is made 3cm from the bag opening, achieving an air isolation rate of approximately 98%.

[0014] Second sealing: Add the vacuum isolation strip 2cm from the bag opening, and then heat seal. At this time, the isolation strip is heated and compressed, completely isolating the bottom seal and fusing with the inner material of the blister pack, with an air isolation rate of about 100%.

[0015] The third seal: A final seal is applied 1 cm from the bag opening, achieving an air isolation rate of approximately 98%.

[0016] Meanwhile, to complement the use of this vacuum tea bag, a small-to-medium opening picking method is adopted in the harvesting process of Wuyi rock tea. Harvesting and processing are carried out when the tea leaves have grown to the small or medium opening stage, resulting in finer, tighter strips in the finished rock tea, making them less prone to breakage. Specifically, small-opening strips are fine and tightly rolled, while medium-opening strips are uniform and aesthetically pleasing, both suitable for the vacuum technology of this invention; whereas traditionally harvested rock tea with large openings is prone to breakage and is not suitable.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Volume reduction: Vacuum packaging significantly reduces the volume of the originally loose rock tea tea bags to about half of their original size, reducing the space occupied by logistics and storage, and lowering operating costs.

[0019] Long-lasting aroma retention: Vacuum packaging reduces the contact between tea leaves and air, decreasing the probability of oxidation and thus preserving the aromatic compounds of Wuyi rock tea for a longer period.

[0020] Long-term storage: Through the triple sealing and vacuum isolation strip, moisture in the air is effectively isolated, enabling the long-term storage of Wuyi rock tea.

[0021] Protecting the shape of tea leaves: The small-to-medium opening picking method makes the rock tea leaves smaller, tighter, and less prone to breakage. Combined with the brewing bag structure and sealing method of this utility model, the generation of broken leaves and fragments in the dry tea can be reduced during the vacuuming process, thus ensuring the brewing quality of the tea. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the triple-sealing structure of the vacuum tea bag for Wuyi rock tea according to this utility model;

[0024] Figure 2 This is a top view of the vacuum isolation strip of this utility model;

[0025] Figure 3 This is a plan view of the vacuum isolation strip of this utility model;

[0026] In the picture:

[0027] 1. Bubble bag body; 2. Vacuum isolation strip; 3. First seal; 4. Second seal; 5. Third seal. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figure 1-3 As shown;

[0031] A vacuum tea bag for Wuyi rock tea.

[0032] In this implementation plan: In order to solve the technical problems existing in the prior art, such as the background technology disclosed above, "Currently, Anxi Tieguanyin tea is tightly spherical and Zhangping narcissus tea is blocky in shape, so their shapes are not easily broken when vacuuming. Both have achieved vacuum packaging and can be stored for a long time."

[0033] However, the following characteristics of Wuyi rock tea have prevented its vacuum packaging from being widely adopted in the production area:

[0034] The tea leaves are relatively large: Traditional Wuyi rock tea is mostly harvested from medium-sized or large-sized leaves, which makes the tea leaves relatively large and not suitable for vacuum packaging.

[0035] Dry tea leaves are easily broken and brittle: Wuyi rock tea has an extremely low moisture content. Using the existing single-layer tea bag vacuum method, the tea leaves will be directly crushed and broken under pressure.

[0036] Existing tea bags are relatively thick: Wuyi rock tea tea bags are typically 50% thicker than other oolong tea tea bags. While this helps protect the integrity of the tea leaves to some extent, it limits the airtightness of the bag and prevents it from achieving a complete vacuum. Conventional Wuyi rock tea tea bags only have two layers of material: a plastic film and an aluminum film. After heating and pressing at the sealing point, the aluminum film adheres to form a seal, but this cannot achieve a 100% vacuum. The dry tea leaves are easily exposed to air and moisture. In practical terms, this is a real and difficult problem to solve. Therefore, to address this technical issue, a vacuum tea bag for Wuyi rock tea is proposed.

[0037] like Figure 1-3 As shown in the figure;

[0038] This utility model provides a technical solution: a vacuum tea bag for Wuyi rock tea, comprising a tea bag body 1, a vacuum isolation strip 2, and a triple sealing structure; the tea bag body 1 includes an inner aluminum film and an outer plastic film; the vacuum isolation strip 2 is made of food-grade active material, its shape fits the tea bag body 1, and after being heated and compressed, it can be integrated with the aluminum film material inside the tea bag body 1; the triple sealing structure consists of: a first seal 3 3 cm from the bag opening, a second seal 4 2 cm from the bag opening after the vacuum isolation strip 2 is added, and a third seal 5 1 cm from the bag opening.

[0039] Under the heating and squeezing action of the second seal 4, the vacuum isolation strip 2 can completely isolate the bottom sealing port.

[0040] The Wuyi rock tea used with this vacuum tea bag is dried tea obtained by picking with a small or medium-sized opening method.

[0041] Picking process:

[0042] During the picking stage of Wuyi Rock Tea, tea leaves are picked when they have grown to the small or medium size of the open surface. Tea leaves picked at the small opening surface produce dry tea with fine and tightly rolled strips; tea leaves picked at the medium opening surface produce dry tea with uniform and beautiful strips. Both types of tea are suitable for the vacuum tea bag packaging technology of this invention, which can reduce breakage during the vacuum processing.

[0043] Tea bag making and tea filling:

[0044] The tea bag body is made to meet the requirements, and its materials include an inner aluminum film and an outer plastic film. Processed Wuyi rock tea leaves are then packed into the tea bag body.

[0045] Vacuuming and sealing process:

[0046] The tea bags are vacuum-sealed, and then a dispensing machine is used to seal them for the first time at a distance of 3cm from the bag opening, at which point the air isolation rate is about 98%.

[0047] Next, the filling machine automatically inserts a vacuum separator strip 2cm from the bag opening. This vacuum separator strip is made of food-grade active material and is then heat-sealed. Under the action of heating and compression, the vacuum separator strip fuses with the aluminum film material inside the blister pack, completely isolating the bottom seal. At this point, the air isolation rate is approximately 100%.

[0048] Finally, the packaging machine performs a third seal 1cm from the bag opening, achieving an air isolation rate of approximately 98%. Through these triple seals, air and moisture are isolated layer by layer, achieving vacuum packaging of Wuyi rock tea.

[0049] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vacuum tea bag of Wuyi tea, characterized in that, It includes a blister pack body (1), a vacuum isolation strip (2), and a triple sealing structure; the blister pack body (1) includes an inner aluminum film and an outer plastic film; the vacuum isolation strip (2) is made of food-grade active material, and its shape fits the blister pack body (1). After being heated and compressed, it can be integrated with the aluminum film material inside the blister pack body (1); the triple sealing structure consists of the following layers: a first seal (3) 3cm from the bag opening, a second seal (4) after adding the vacuum isolation strip (2) 2cm from the bag opening, and a third seal (5) 1cm from the bag opening.

2. A vacuum infusion teabag according to claim 1, wherein: The vacuum isolation strip (2) can completely isolate the bottom sealing port under the heating and squeezing action of the second seal (4).

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