Caffeine-removing packet for cup beverages

Abstract

The utility model discloses a kind of caffeine filtering bag suitable for cup beverage, it includes filter bag, filter material and straw stirring rod, filter bag is opened mesh to form closed containment space, filter material is made of macroporous resin and diameter is not less than mesh size, straw stirring rod adopts hard material and is equipped with the fluid passage of penetration, its outside wall is connected with filter bag, the utility model realizes the instant caffeine removal function of present beverage, user can independently adjust caffeine content in drinking process without professional equipment, the scheme solves the problem that industrial removal cause technology cannot be migrated to consumer scene, the caffeine filtering bag of the utility model is small and portable, caffeine can be removed directly to brewed beverage in coffee shop present scene, while avoiding the influence of complex operation process on beverage flavor.

Description

Technical Field

[0001] This utility model relates to the field of food processing and dedecane technology, and in particular to a caffeine removal pack suitable for cup-packaged beverages. Background Technology

[0002] Because excessive caffeine intake can burden consumers' health, decaffeinated coffee, milk tea, and other beverages have gained popularity. Current mainstream decaffeination technologies (supercritical CO2 extraction, organic solvent extraction, etc.) are primarily geared towards industrial production, requiring high-temperature, high-pressure equipment and complex processes, resulting in high barriers to technology transfer. This limits decaffeinated products to pre-packaged forms (such as canned coffee, instant powder, and canned milk tea), making them unsuitable for drinks prepared and consumed directly in cafes or milk tea shops, or for takeout. Furthermore, current mainstream decaffeination technologies not only lead to flavor loss in coffee but also only provide a fixed caffeine content, failing to meet personalized decaffeination needs.

[0003] Existing industrial-grade decaffeination technologies are completely inadequate to meet this immediate and personalized demand, and the market lacks simple, easy-to-use, portable solutions that allow for instant adjustment of caffeine levels. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the defects in the prior art and provide a caffeine removal pack suitable for cup-packaged beverages.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A caffeine filter pack for cup-packaged beverages, comprising:

[0007] The filter bag has a mesh of a first size and has a closed-loop containment space.

[0008] The filter media is placed in the receiving space, and the filter media is made of a plurality of macroporous resins with a second diameter not less than the first diameter;

[0009] The straw stirring rod is made of a rigid material. The outer wall of the straw stirring rod is connected to the filter bag. The interior of the straw stirring rod has a fluid channel that extends and penetrates along its length.

[0010] In some embodiments, the filter bag is in the shape of a triangular pyramid or a cylinder.

[0011] In some embodiments, the fluid channel includes three independent sub-channels.

[0012] In some embodiments, the outer wall of the straw stirring rod is connected to the filter bag by heat pressing.

[0013] In some embodiments, the filter bag is made of nylon cloth, the filter bag has a mesh count of 100 mesh, and the pore size of the mesh is 50-200 μm.

[0014] In some embodiments, the straw stirring rod is made of PLA material and the length of the straw stirring rod is 15-23cm.

[0015] In some embodiments, the macroporous resin filter material is composed of a styrene copolymer.

[0016] In some embodiments, the beverage includes coffee and milk tea.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0018] The positive and progressive effects of this utility model are as follows: This utility model realizes the instant caffeine removal function of freshly made beverages. Users can adjust the caffeine content themselves during the drinking process without professional equipment. This solution solves the problem that industrial de-decaffeination technology cannot be transferred to consumer scenarios. The caffeine removal bag in this embodiment is small in size and easy to carry. It can directly remove caffeine from brewed beverages in the freshly made coffee shop scenario, while avoiding the impact of complicated operation procedures on the flavor of the beverage. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a caffeine removal pack suitable for cup-packaged beverages, representing a preferred embodiment of the present invention.

[0020] Figure 2 This is a finished product image of a caffeine filtering pack suitable for cup-packaged beverages, according to a preferred embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] Filter media 1

[0023] Filter bag 2

[0024] 3 straw stirring sticks Detailed Implementation

[0025] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof in the claims and specification of this patent are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0027] like Figure 1 and Figure 2 As shown, this embodiment discloses a caffeine removal pack suitable for cup-packaged beverages (such as coffee, milk tea and other caffeinated beverages), which includes a filter bag 2, filter material 1 and a straw stirring rod 3.

[0028] The filter bag 2 has a mesh of a first size and a closed containment space. The filter material 1 is placed in the containment space. The filter material 1 is made of several macroporous resins with a diameter of a second size, which is not smaller than the first size. The straw stirring rod 3 is made of a rigid material. The outer wall of the straw stirring rod 3 is connected to the filter bag 2. The interior of the straw stirring rod 3 has a fluid channel that extends and penetrates along its length (such as the vertical direction in 1).

[0029] The mesh openings in filter bag 2 refer to a filtration structure with a specific pore size. These openings allow liquid to pass through while preventing resin particles from escaping, thus performing primary filtration. The macroporous resin used in filter material 1 refers to a polymer material with a three-dimensional network structure, specifically a styrene copolymer, but not limited to this. Its internal pore structure selectively adsorbs caffeine molecules while allowing flavor compounds to pass freely.

[0030] The rigid material of the tube stirring rod refers to a plastic material with a certain rigidity. Its rigidity can support the filter bag 2 to be immersed below the surface of the beverage liquid, and accelerate the flow of liquid to the filter material 1 through the stirring action.

[0031] The fluid channel refers to the flow-guiding structure that runs through the inside of the straw, specifically formed into three independent sub-channels through an extrusion molding process. This design achieves the function of drinking beverages while maintaining the structural strength of the straw wall.

[0032] Specifically, the closed-loop design of filter bag 2 confines the macroporous resin within a fixed area, and the matching relationship between the mesh size and the resin diameter ensures that resin particles will not leak. When the straw stirrer 3 is inserted into the beverage cup, filter bag 2, due to its lower density, naturally floats on the liquid surface, and can be completely submerged by pressing the straw. During stirring, liquid enters the interior of filter bag 2 through the mesh, and the liquid after the macroporous resin adsorbs caffeine molecules returns to the beverage through the mesh. The fluid channels inside the straw allow drinking and stirring to be performed simultaneously, and users can control the caffeine removal rate by repeatedly stirring.

[0033] Compared to existing technologies, industrial-grade decaffeination methods require specialized equipment and are only suitable for mass production. This solution, however, utilizes an integrated design of the filter bag 2 and straw, allowing caffeine removal to be completed directly in the drinking container. Traditional methods result in flavor loss; this solution leverages the selective adsorption properties of macroporous resin to remove caffeine while preserving the beverage's original flavor. Existing pre-packaged decaffeinated products cannot adjust caffeine content; this solution allows users to personalize decaffeination by controlling stirring time and frequency.

[0034] Through the above technical solution, this embodiment realizes the instant caffeine removal function of freshly made beverages. Users can adjust the caffeine content themselves during the drinking process without professional equipment. This solution solves the problem that industrial de-decaffeination technology cannot be transferred to consumer scenarios. The caffeine removal bag of this embodiment is small in size and easy to carry. It can directly remove caffeine from brewed beverages in the freshly made coffee shop scenario, while avoiding the impact of complicated operation procedures on the flavor of the beverage.

[0035] Furthermore, in this embodiment, the filter bag 2 is shaped like a triangular pyramid or a cylinder. A triangular pyramid refers to a three-dimensional geometric structure with three sides and a triangular base, while a cylinder refers to a geometric body with a circular cross-section and a straight line extending in the height direction. The triangular pyramid structure, through the inclined angle design of its three sides, allows the filter material 1 to form a multi-directional diffusion path in the beverage, preventing the filter bag 2 from adhering to the cup wall and thus limiting the contact area. The cylindrical structure utilizes its circumferential continuity to ensure that the filter material 1 remains in an expanded state during liquid flow, preventing localized accumulation caused by irregular container shapes. Both geometric shapes increase the effective exposure area of ​​the filter material 1, thereby increasing the probability of collisions between caffeine molecules and the adsorbent material per unit time.

[0036] Traditional flat filter bags 2 are prone to wrinkling within cylindrical cups, causing the filter material 1 to stack and creating blind areas that do not contact the liquid. This solution's three-dimensional structure maintains the unfolded shape of the filter bag 2 through rigid support, ensuring that the macroporous resin is evenly distributed throughout the beverage flow area and avoiding adsorption efficiency reduction caused by folding.

[0037] Through the above technical solution, this embodiment can ensure that the filter material 1 maintains sufficient contact with the beverage, eliminating fluctuations in caffeine removal efficiency caused by structural deformation. The three-dimensional geometric features of the filter bag 2 enable it to maintain a stable adsorption interface during the dynamic stirring process of freshly made beverages.

[0038] Furthermore, in this embodiment, the fluid channel includes three independent sub-channels. The fluid channel refers to the liquid flow path penetrating the interior of the straw stirring rod 3. Specifically, it can be implemented by dividing the channel into three independent parts using a partition plate, with the partition plate forming a sealed structure with the inner wall of the straw stirring rod 3. The sub-channels refer to the independent flow paths formed within the fluid channel by the partitions. Specifically, they can be arranged in parallel, and the cross-sectional shape of each sub-channel can be set to semi-circular or rectangular. With three isolated flow paths inside the straw stirring rod 3, the liquid flows through different sub-channels. When one sub-channel is partially blocked, the other two sub-channels remain unobstructed, and the liquid continues to flow through the unblocked sub-channel, avoiding complete blockage that could cause the straw to malfunction.

[0039] Furthermore, in this embodiment, the filter bag 2 is made of nylon cloth with a mesh count of 100 mesh and a pore size of 50-200 μm, preferably 150 μm. Nylon cloth refers to a fabric woven from polyamide polymer materials. This material maintains chemical inertness in liquid immersion environments, preventing structural damage due to swelling or degradation. Mesh count refers to the density parameter of woven fibers per unit area. This density parameter controls the fiber spacing to form a predetermined pore size range, maintaining a balance between resin particle barrier and liquid permeation. The pore size refers to the minimum diameter parameter of the through-holes formed by fiber weaving. This parameter establishes a selective permeation mechanism by screening for size differences between caffeine molecules and flavor substances.

[0040] The chemical stability of the nylon fabric allows it to maintain its mechanical strength in acidic or alkaline beverage environments, preventing filter bag 2 from breaking and causing resin particles to leak into the beverage. The synergistic effect of weave density and pore size parameters restricts the movement range of resin particles while allowing liquid to fully pass through the resin to adsorb caffeine.

[0041] Furthermore, in this embodiment, the straw stirring rod 3 is made of PLA material, and its length is 15-23cm. PLA material refers to a biodegradable material based on polylactic acid, which can be processed using injection molding. It can ensure the structural stability of the straw in hot and cold beverages. The length range of 15-23cm is a suitable size determined based on the height distribution of the beverage cup, and this range covers the distance from the bottom to the liquid surface of common cup shapes.

[0042] The biocompatibility of PLA material allows it to directly contact beverages without releasing harmful substances, avoiding the migration risk of substances such as bisphenol A compared to traditional petroleum-based plastics. By limiting the length to a lower limit of 15cm, it ensures that the end of the stirring rod touches the bottom of the cup, achieving full contact between the filter material 1 and the beverage, while the upper limit of 23cm prevents it from extending too far beyond the cup rim, thus avoiding bending during carrying or drinking.

[0043] Traditional plastic straws are non-biodegradable and pose a risk of chemical leaching, while PLA material can completely decompose into carbon dioxide and water under natural composting conditions. Existing stirring rods mostly use fixed length specifications, which can easily lead to redundant or insufficient length when applied to different cup shapes. This solution, however, has been experimentally verified to have a size range that adapts to the height of more than 90% of commercially available cup shapes.

[0044] Through the above technical solution, this embodiment achieves both environmental friendliness and food contact safety of the stirring rod material. At the same time, by optimizing the length parameters, it ensures the stirring effect and ease of use of the beverage, thus resolving the technical contradiction in the control device of freshly made beverage scenarios where it is difficult to balance environmental protection requirements and operational adaptability.

[0045] Furthermore, in this embodiment, the outer wall of the straw stirring rod 3 is connected to the filter bag 2 by hot pressing. Hot pressing refers to the melting and bonding of two materials at the contact interface by applying high temperature and pressure. This process forms cross-linked fusion of molecular chains at the interface without the need to introduce foreign substances such as adhesives.

[0046] In the contact area between the pipette stirring rod 3 and the filter bag 2, the high temperature softens the nylon material surface of the filter bag 2 and the PLA material of the pipette stirring rod 3. Under pressure, the molecular chains of the two materials interpenetrate. After cooling, a dense interpenetrating network structure forms at the interface. During stirring, the tensile force generated by the liquid impact on the filter bag 2 is evenly transferred to the pipette stirring rod 3 through the hot-pressed interface, preventing localized tearing. Simultaneously, the sealing band formed by hot pressing prevents liquid from penetrating into the connecting layer, preventing a decrease in bonding strength due to material swelling.

[0047] Compared to existing technologies, traditional adhesive bonding is prone to hydrolysis and peeling when immersed in liquids, and the adhesive layer is susceptible to cracking under repeated bending. The seamless interface formed by hot pressing possesses the same liquid resistance as the base material, and the bond strength increases synchronously with the material's inherent strength. Compared to sewing processes, this technology avoids pinholes that could damage the structural integrity of the filter bag 2, while also eliminating the risk of stitch breakage.

[0048] Through the above technical solution, this embodiment ensures a durable and reliable connection between the straw stirring rod 3 and the filter bag 2, with no cracking or displacement at the connection point after 200 continuous stirring cycles. The connection interface withstands immersion in 80°C hot beverages for 30 minutes without peeling, and no harmful substances were detected leaching. This solution ensures that the filter bag 2 is stably fixed to the straw stirring rod 3 in a liquid environment, meeting the needs of freshly prepared beverages.

[0049] Furthermore, using the caffeine removal pack of this embodiment, the following two experiments were conducted, and the results were verified by a professional testing institution. The experimental data are as follows:

[0050] Experiment 1

[0051] 1L of 70°C black coffee was prepared using regular coffee beans and divided into two portions, labeled as Black Coffee 1 and Black Coffee 2, each 500ml. Black Coffee 2 was thoroughly stirred and filtered for 15 seconds using the caffeine removal packet of this product, while Black Coffee 1 was left untreated. The caffeine content data from the test results are shown in Table 1. As the data shows, the caffeine removal rate of the caffeine removal packet for regular black coffee is approximately 56%.

[0052]

[0053] Experiment 2

[0054] 1L of decaffeinated coffee at 70°C was prepared using decaffeinated coffee beans and divided into two portions, labeled Decaffeinated Coffee 1 and Decaffeinated Coffee 2, each 500ml. Decaffeinated Coffee 2 was filtered using the caffeine removal packet of this product, with thorough stirring for 15 seconds. Decaffeinated Coffee 1 was left untreated. The caffeine content data from the tests are shown in Table 2. As the data shows, the caffeine removal rate of the caffeine removal packet for the decaffeinated coffee was approximately 66%. This demonstrates that the caffeine removal efficiency of the caffeine removal packet does not decrease as the caffeine content in the coffee liquid decreases.

[0055]

[0056]

[0057] Based on the above experimental results, it can be seen that the structural design of the caffeine removal bag in this embodiment can efficiently remove caffeine in both high-concentration and low-concentration caffeine systems, breaking through the limitations of traditional decaffeination technology on equipment and scenarios, and providing an innovative solution for personalized caffeine regulation.

Claims

1. A caffeine filter pack suitable for cup-packaged beverages, characterized in that, include: The filter bag has a mesh of a first size and has a closed-loop containment space. The filter media is placed in the receiving space, and the filter media is made of a plurality of macroporous resins with a second diameter not less than the first diameter; The straw stirring rod is made of a rigid material. The outer wall of the straw stirring rod is connected to the filter bag. The interior of the straw stirring rod has a fluid channel that extends and penetrates along its length.

2. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The filter bag is in the shape of a triangular pyramid or a cylinder.

3. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The fluid channel comprises three independent sub-channels.

4. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The outer wall of the straw stirring rod is connected to the filter bag by heat pressing.

5. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The filter bag is made of nylon cloth with a mesh size of 100 mesh and a pore size of 50-200μm.

6. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The straw stirring rod is made of PLA material and has a length of 15-23cm.

7. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The macroporous resin filter material is composed of a styrene copolymer.

8. The caffeine removal packet for cup-packaged beverages as described in claim 1, characterized in that, The beverages mentioned include coffee and milk tea.

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