Packaging container for freeze-dried anthocyanin powder with spoilage alert

Abstract

The utility model relates to packing assembly technical field, concretely is a kind of anthocyanin freeze-dried powder packing container with deterioration reminding, packing is made of food-grade polypropylene and is used to fill anthocyanin freeze-dried powder packing barrel, and the top of packing barrel is open state and install top cover at opening place.The transparent deterioration reminding window of the utility model in packing barrel outer wall top is set, inside situation is convenient for observation;Color contrast card installed on the side of deterioration reminding window provides reference standard for judging whether anthocyanin deteriorates;Several inert holes of even equidistance arrangement are set on the dry hydrogel membrane, and anthocyanin deterioration indicator is set in each inert hole using ph test paper, when anthocyanin freeze-dried powder deteriorates and causes pH change, anthocyanin deterioration indicator will change color, by comparison with color contrast card, whether anthocyanin freeze-dried powder deteriorates can be directly judged, thereby the function of anthocyanin freeze-dried powder deterioration reminding is realized.

Description

Technical Field

[0001] This utility model relates to the field of packaging component technology, specifically to a packaging container for anthocyanin freeze-dried powder with a spoilage warning. Background Technology

[0002] Anthocyanins, as natural pigments with powerful antioxidant properties, are widely used in food, health products, and cosmetics. They not only give products vibrant colors but also possess various physiological functions beneficial to the human body, such as scavenging free radicals, anti-oxidation, and anti-inflammation, making them highly popular among consumers. Among the various product forms of anthocyanins, freeze-dried anthocyanin powder has become a common and popular product type in the market because it can retain the activity and stability of anthocyanins to the greatest extent. However, ensuring the stability and safety of the quality of freeze-dried anthocyanin powder during storage and use is crucial, which requires effective deterioration detection and warning methods.

[0003] Existing technologies for storing and using anthocyanin freeze-dried powder have limitations in effectively detecting spoilage. During storage, moisture promotes oxidation and hydrolysis of anthocyanins, reducing their quality. Currently, there is a lack of convenient, intuitive, and accurate methods for determining whether anthocyanin freeze-dried powder has spoiled. Consumers often struggle to accurately judge spoilage based on their own experience, potentially leading to accidental ingestion of spoiled products and health risks, or premature disposal of unspoiled products, resulting in waste. Utility Model Content

[0004] The purpose of this invention is to provide a packaging container for anthocyanin freeze-dried powder with a spoilage warning, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A packaging container for anthocyanin freeze-dried powder with a spoilage warning is provided. The packaging is made of food-grade polypropylene and is used to hold the anthocyanin freeze-dried powder. The top of the packaging tube is open and a top cover is installed at the opening. A transparent spoilage warning window is provided on the top of the outer wall of the packaging tube, and a color comparison card is installed on one side of the spoilage warning window. A dry hydrogel membrane is provided on the side of the deterioration warning window that is in contact with the internal anthocyanin freeze-dried powder. The dry hydrogel membrane has several uniformly spaced inert pores, and each inert pore contains an anthocyanin deterioration indicator made of pH test paper.

[0006] Preferably, the outer wall of the packaging tube is provided with a light-proof film.

[0007] Preferably, the top cover is fitted with a sealing plug that is compatible with the opening size of the packaging tube and fits into place.

[0008] Preferably, the top cover is connected to the top outer wall of the packaging tube by a connecting rope.

[0009] Preferably, the color contrast card includes a primary color area using bright purple, a safety color area using light blue, and a warning color area using dark blue.

[0010] Preferably, text labels are provided on the primary color area, the safety color area, and the warning color area.

[0011] Preferably, the thickness of the dried hydrogel film is 0.25-1 mm.

[0012] Compared with existing technologies, the beneficial effects of this utility model are: This anthocyanin freeze-dried powder packaging container with spoilage warning features a food-grade polypropylene packaging tube to ensure the safety of the contained anthocyanin freeze-dried powder. A top cap is installed at the opening at the top of the packaging tube to seal and protect the powder. A transparent spoilage warning window on the top of the outer wall of the packaging tube allows for easy observation of the internal condition. A color comparison card installed on one side of the spoilage warning window provides a reference standard for determining whether the anthocyanin has spoiled. A dry hydrogel film is installed on the side of the spoilage warning window that contacts the internal anthocyanin freeze-dried powder. This film has several evenly spaced inert pores, each containing an anthocyanin spoilage indicator made of pH test paper. When the anthocyanin freeze-dried powder spoils, causing a change in pH, the anthocyanin spoilage indicator changes color. By comparing this color with the color comparison card, one can visually determine whether the anthocyanin freeze-dried powder has spoiled, thus achieving the function of reminding the user of spoilage.

[0013] The packaging container of this anthocyanin freeze-dried powder with a spoilage warning has a light-proof film on the outer wall of the packaging tube, which can effectively block light from entering the packaging tube and prevent the anthocyanin freeze-dried powder from undergoing photochemical reactions due to light exposure, thereby better maintaining the stability of the anthocyanin freeze-dried powder and extending its shelf life.

[0014] This anthocyanin freeze-dried powder packaging container with a spoilage warning has a sealing plug installed on the top cover that matches the opening size of the packaging tube and fits snugly. This allows the top cover to tightly seal the opening of the packaging tube, preventing external air and moisture from entering the packaging tube, reducing the contact between the anthocyanin freeze-dried powder and the external environment, and lowering the risk of spoilage. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0016] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged structural diagram of the deterioration warning window of this utility model; Figure 3 This is an enlarged structural schematic diagram of the dried hydrogel membrane of this utility model; The meaning of each label in the diagram: 10. Packaging tube; 11. Lightproof film; 20. Top cover; 21. Sealing plug; 22. Connecting rope; 30. Color comparison chart; 31. Primary color area; 32. Safe color area; 33. Warning color area; 34. Text label; 40. Deterioration warning window; 41. Dry hydrogel membrane; 42. Inert pores; 43. Anthocyanin deterioration indicator. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. 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.

[0018] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 of this utility model.

[0019] A packaging container for anthocyanin freeze-dried powder with a spoilage warning, such as Figures 1-3As shown, the packaging tube 10, made of food-grade polypropylene, is used to hold anthocyanin freeze-dried powder. The top of the packaging tube 10 is open, and a top cover 20 is installed at the opening. A transparent spoilage warning window 40 is provided on the top of the outer wall of the packaging tube 10, and a color comparison card 30 is installed on one side of the spoilage warning window 40. A drying hydrogel film 41 is provided on the side of the spoilage warning window 40 that contacts the internal anthocyanin freeze-dried powder. Several inert holes 42 are evenly spaced on the drying hydrogel film 41, and each inert hole 42 contains an anthocyanin spoilage indicator 43 made of pH test paper. The packaging tube 10 is made of food-grade polypropylene, which ensures the safety of the contained anthocyanin freeze-dried powder. The top cover 20 is installed at the top opening of the packaging tube 10. The packaging cylinder 10 serves to seal and protect the anthocyanin freeze-dried powder. A transparent deterioration warning window 40 is provided at the top of the outer wall of the packaging cylinder 10 for easy observation of the internal condition. A color comparison card 30 is installed on one side of the deterioration warning window 40 to provide a reference standard for judging whether the anthocyanin has deteriorated. A dry hydrogel film 41 is provided on the side of the deterioration warning window 40 that is in contact with the internal anthocyanin freeze-dried powder. Several inert holes 42 are evenly and equidistantly arranged on the film, and an anthocyanin deterioration indicator 43 made of pH test paper is provided in each inert hole 42. When the anthocyanin freeze-dried powder deteriorates and causes a change in pH value, the anthocyanin deterioration indicator 43 will change color. By comparing with the color comparison card 30, it is possible to intuitively judge whether the anthocyanin freeze-dried powder has deteriorated, thereby realizing the function of reminding the anthocyanin freeze-dried powder of deterioration.

[0020] It is worth noting that a light-proof film 11 is provided on the outer wall of the packaging tube 10, which can effectively block light from entering the interior of the packaging tube 10, prevent the anthocyanin freeze-dried powder from undergoing a photochemical reaction due to light exposure, thereby better maintaining the stability of the anthocyanin freeze-dried powder and extending its shelf life.

[0021] Furthermore, a sealing plug 21 that is compatible with and fits into the opening size of the packaging tube 10 is installed on the top cover 20, so that the top cover 20 can tightly seal the opening of the packaging tube 10, preventing external air, moisture and other substances from entering the packaging tube 10, reducing the contact between the anthocyanin freeze-dried powder and the external environment, and reducing the risk of its deterioration.

[0022] The top cover 20 is connected to the top outer wall of the packaging tube 10 by a connecting rope 22, so that the top cover 20 will not separate from the packaging tube 10 after it is opened, thus preventing the top cover 20 from being lost and making it convenient for the user to reseal the packaging tube 10.

[0023] Specifically, the color comparison card 30 includes a primary color area 31 using bright purple, a safety color area 32 using light blue, and a warning color area 33 using dark blue. Text labels 34 are set on the primary color area 31, the safety color area 32, and the warning color area 33. The primary color area 31 allows users to understand the original color of the anthocyanin deterioration indicator 43. The safety color area 32 and the warning color area 33 provide a clear color reference range for judging whether the anthocyanin freeze-dried powder has deteriorated. The text labels 34 further clarify the meaning of each color area, making the judgment more intuitive and accurate.

[0024] In addition, the thickness of the dried hydrogel membrane 41 is 0.25-1mm, which can ensure that the dried hydrogel membrane 41 has a certain strength and stability, and also make it have good response sensitivity to the pH value change of the anthocyanin freeze-dried powder, so as to reflect the deterioration of the anthocyanin freeze-dried powder in a timely and accurate manner.

[0025] The color indication system in this embodiment is as follows: Matching anthocyanin colors: Freshness: Anthocyanin deterioration indicator 43 is bright purple (indicating normal and edible). Slight spoilage: Anthocyanin spoilage indicator 43 turns light blue (indicating that it should be consumed as soon as possible); Severe spoilage: Anthocyanin deterioration indicator 43 turns dark blue (indicating it is not edible).

[0026] Assisted recognition design: Print a color contrast card 30 next to the transparent window on the outside of the packaging. Use bold black font (size ≥12) so that the elderly and children can clearly recognize it.

[0027] Deterioration warning: Triggering conditions: repeated opening and closing, loose cap, or prolonged storage, allowing external moisture to continuously enter the bottle.

[0028] Response process: (1) Anthocyanin freeze-dried powder begins to absorb moisture.

[0029] (2) Due to its porous nature, the dry hydrogel membrane 41 on the inner wall will sense changes in humidity and be activated faster than the powder.

[0030] (3) If moisture absorption has caused slight deterioration of the powder (which may not be visible to the naked eye), the trace amounts of volatile substances produced will act on the slightly moistened label and change the pH of its microenvironment.

[0031] Visual alert: The label color irreversibly changes from a "safety color" (bright purple) to a "warning color" (dark blue). Consumers can check the product's internal condition simply by looking through the viewing window without opening the bottle.

[0032] The working principle of the anthocyanin freeze-dried powder packaging container with spoilage warning in this utility model: First, the user opens the top cover 20 from the packaging tube 10 using the connecting rope 22. At this time, the sealing plug 21 separates from the opening of the packaging tube 10, exposing the internal space for holding the anthocyanin freeze-dried powder. A certain amount of anthocyanin freeze-dried powder is then taken out as needed. After use, the top cover 20 is replaced, ensuring that the sealing plug 21 is tightly inserted into the opening of the packaging tube 10 to guarantee airtightness and prevent interference from external factors. During daily storage, the light-proof film 11 on the outer wall of the packaging tube 10 effectively blocks light. When it is necessary to check whether the anthocyanin freeze-dried powder has deteriorated, the user can observe the dry hydrogel film 41 inside through the transparent deterioration warning window 40. The anthocyanin deterioration indicator 43 in the inert pores 42 on the film will change color due to changes in the pH value of the anthocyanin freeze-dried powder. By comparing its color with the bright purple primary color area 31, light blue safety color area 32, dark blue warning color area 33 and the corresponding text label 34 on the color comparison card 30, it can be determined whether the anthocyanin freeze-dried powder has deteriorated. If it is close to the warning color area 33, it means that it has deteriorated and should not be consumed.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A packaging container for anthocyanin freeze-dried powder with a spoilage warning, wherein the packaging is made of food-grade polypropylene and is used to hold the anthocyanin freeze-dried powder in a packaging tube (10), characterized in that: The top of the packaging tube (10) is open and a top cover (20) is installed at the opening. A transparent spoilage warning window (40) is provided on the top of the outer wall of the packaging tube (10). A color comparison card (30) is installed on one side of the spoilage warning window (40). A dry hydrogel membrane (41) is provided on the side of the deterioration warning window (40) that is in contact with the internal anthocyanin freeze-dried powder. A number of uniformly spaced inert pores (42) are provided on the dry hydrogel membrane (41). An anthocyanin deterioration indicator (43) made of pH test paper is provided in each of the inert pores (42).

2. The anthocyanin freeze-dried powder packaging container with spoilage warning according to claim 1, characterized in that: A light-proof film (11) is provided on the outer wall of the packaging tube (10).

3. The packaging container for anthocyanin freeze-dried powder with spoilage warning as described in claim 1, characterized in that: The top cover (20) is fitted with a sealing plug (21) that is compatible with the opening size of the packaging tube (10) and fits into place.

4. The anthocyanin freeze-dried powder packaging container with spoilage warning according to claim 1, characterized in that: The top cover (20) is connected to the top outer wall of the packaging tube (10) by a connecting rope (22).

5. The anthocyanin freeze-dried powder packaging container with spoilage warning according to claim 1, characterized in that: The color contrast card (30) includes a primary color area (31) using bright purple, a safety color area (32) using light blue, and a warning color area (33) using dark blue.

6. The anthocyanin freeze-dried powder packaging container with spoilage warning according to claim 5, characterized in that: Text labels (34) are provided on the primary color area (31), the safety color area (32) and the warning color area (33).

7. The anthocyanin freeze-dried powder packaging container with spoilage warning according to claim 1, characterized in that: The thickness of the dried hydrogel membrane (41) is 0.25-1 mm.

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