Food plastic packaging bag with shelf life reminding label

Abstract

The utility model belongs to food packaging technical field, and disclose a kind of food plastic packaging bag with shelf life reminding label, including food packaging bag, food packaging bag is used to package food, play the role of air isolation and the effect of storing food, located at the top of food packaging bag and top side is set into sawtooth shape, for opening package, hot melt connection has injection moulded connecting bridge at the opening of food packaging bag, injection moulded connecting bridge is composed of shallow groove and pull strip body, pull strip body can be torn open to realize separation at the recess of shallow groove, also can be pressed to the inside of clamping groove by buckle, realize pull strip body and shallow groove are embedded, by the above scheme, the tear structure of some, there is no sound when tearing, for old people and children use, it can lead to user mistake to think that not opened, leading to food packaging leakage, miss best eating time, part of reminding label uses non-degradable plastic base, pollution environment problem.

Description

Technical Field

[0001] This utility model belongs to the field of food packaging technology, specifically a food plastic packaging bag with an expiration date reminder label. Background Technology

[0002] Food shelf life is an important indicator for ensuring food safety. However, most existing food plastic packaging bags only print fixed dates to remind consumers of the shelf life. Consumers need to remember and calculate the remaining shelf life themselves, which can easily lead to food being wasted or accidentally consumed.

[0003] Existing food plastic packaging bags with expiration date reminder labels are available on the market, such as oxygen-sensitive, time-sensitive, and voice-prompt types. However, these packaging bags still have obvious defects: First, they use a lot of electronic sensors. Plastic packaging bags are already fragile and do not need a complex structure. Adding electronic information reminder devices is not only not environmentally friendly, but also increases their weight. Some tear-off structures are silent when torn, which may lead elderly people and children to mistakenly believe that the packaging has not been opened, causing the food packaging to leak air and miss the best time to eat it. Some reminder labels use non-degradable plastic bases, dyes containing heavy metals, or require button batteries for power, which are costly and impractical, and may also pose food safety hazards due to battery leakage. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a food plastic packaging bag with an expiration date reminder label. It features the advantages of using the same material as the food packaging bag for easy recycling and degradation, adding an injection-molded connecting bridge to replace the protrusion of the nitrogen analyzer, and producing a crisp breaking sound when the injection-molded bridge is first torn. This provides both physical structural protection against accidental tearing and auditory feedback of successful operation, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a food plastic packaging bag with a shelf-life reminder label, comprising a food packaging bag, which is used to seal food, thereby isolating it from air and storing the food. The top and sides of the top of the food packaging bag are serrated for opening the packaging. A heat-fused injection-molded connecting bridge is provided at the opening of the food packaging bag. The injection-molded connecting bridge consists of a shallow groove and a pull strip body. The shallow groove is heat-fused to the serrated, easy-to-tear area of ​​the food packaging bag. The inner groove of the shallow groove has two fixed slots on both sides. The slots have sliding buckles located on both sides of the pull strip body. The pull strip body can be torn open at the groove of the shallow groove to separate it, or it can be pressed into the slots by the buckles to fit the pull strip body and the shallow groove. The first tear of the injection-molded connecting bridge will produce a crisp breaking sound, which not only prevents accidental tearing through physical structure, but also provides auditory feedback of successful operation.

[0006] Preferably, a fragile film and a bottom layer are sequentially attached to the bottom of the pull strip body. The fragile film is disposed between the pull strip body and the bottom layer. The fragile film is made of a transparent and tear-resistant material, and its surface material can be used for ink printing. The pull strip body, the fragile film and the bottom layer have the same shape as the shallow groove structure.

[0007] Preferably, one side of the pull strip body is shaped like an inverted trapezoid, with a protrusion fixedly connected at the center of the top of the inverted trapezoid. The protrusion forms a slight drop with the surface of the food packaging bag, allowing for quick location of the tearing position through touch, thus avoiding accidental tearing of other areas.

[0008] Preferably, the surfaces of both the shallow groove and the pull bar body are rounded, and the pre-pressing marks between the shallow groove and the pull bar body are replaced with laser micro-engraved double-track marks.

[0009] Preferably, the surface of the bump is covered with a PP film and has diagonal fine stripes pressed onto the surface to enhance the friction when gripping the bump.

[0010] Preferably, the interior of the shallow groove is provided with display area one, display area two and display area three in sequence from the direction near the protrusion. Display area one, display area two and display area three have the same shape, and their surfaces are distinguished by reaction test paper of different colors. They are fixed to the shallow groove by heat fusion connection.

[0011] Preferably, the injection-molded connecting bridge is parallel to the heat-sealed edge at the top of the food packaging bag, so that when the user tears open the heat-sealed edge, they need to simultaneously tear the pull strip body, integrating the two actions and reducing the number of operation steps.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model adds an injection-molded connecting bridge to the surface of a food packaging bag, connecting the shallow groove to the opening of the food packaging bag via heat fusion. An additional buckle is added to the surface of the pull strip body; when pulled inside the shallow groove, it detaches from the buckle inside the groove. During the separation process, a sound is generated to remind the user that the injection-molded connecting bridge has been opened. The injection-molded connecting bridge is parallel to the heat-sealed edge at the top of the food packaging bag, making it convenient for users to tear the heat-sealed edge and simultaneously tear the pull strip body, integrating the two actions and reducing operation steps; Different display labels are added inside the shallow tank, and the oxidation time of different areas is different. For example, the oxidation time of the first group of areas is 2 hours, and that of the other group of areas is 4 hours. The best time to eat is printed on the surface of the food packaging bag. When the first group of areas changes color due to oxidation, it reminds the user that the food needs to be used as soon as possible. When the second group of areas changes color, it means that the best time to eat has been missed and the food needs to be discarded in time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the fragile film of this utility model; Figure 3 This is a schematic diagram of the buckle located in the slot of this utility model; Figure 4 This is a schematic diagram of the structure of the present invention, showing that the protrusion is higher than the body of the pull bar; Figure 5 This is a schematic diagram of the structure of the pull bar body and the shallow groove of this utility model.

[0014] In the picture: 1. Food packaging bag; 2. Injection-molded connecting bridge; 21. Shallow groove; 211. Slot; 22. Tie strip body; 221. Buckle; 222. Raised dot; 23. Fragile film; 24. Substrate; 25. Display area one; 26. Display area two; 27. Display area three. Detailed Implementation

[0015] 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.

[0016] like Figures 1 to 5 As shown, this utility model provides a food plastic packaging bag with a shelf-life reminder label, including a food packaging bag 1. The food packaging bag 1 is used to seal food, which can isolate the food from the air and store the food, preventing the food inside the food bag from being in contact with the air for a long time, which would cause the food to deteriorate and rot. The food packaging bag 1 can effectively seal the food, which can be opened when it is needed. The top and top side of the food packaging bag 1 are set in a serrated shape for opening the packaging. A hot-melt injection molding connecting bridge 2 is provided at the opening of the food packaging bag 1, which is connected by hot melt without additional adhesive. The injection-molded connecting bridge 2 consists of a shallow groove 21 and a pull strip body 22. The shallow groove 21 is heat-fused to the serrated, easily tearable portion of the food packaging bag 1. The shallow groove 21 is made of the same material as the food packaging bag 1, allowing for simultaneous recycling with the packaging bag without separate separation. Fully biodegradable substrates are costly, and complex labels are difficult to separate from the packaging bag, affecting recycling. The inner groove of the shallow groove 21 has two fixedly connected slots 211 on either side. Inside the slots 211, latches 221 slide, located on both sides of the pull strip body 22. The pull strip body 22 can be torn open at the groove of the shallow groove 21 for separation. Alternatively, the pull strip body 22 and the shallow groove 21 can be engaged by pressing the buckle 221 into the groove 211. When not in use, the pull strip body 22 is embedded in the shallow groove 21 of the outer layer of the packaging bag. A directional force needs to be applied to pull it out along the tearing direction to avoid accidental tearing caused by lateral hooking. The injection-molded connecting bridge 2 will produce a crisp breaking sound when it is first torn. It not only prevents accidental tearing through physical structure, but also provides auditory feedback of successful operation through sound. By adding this kind of snap-fit ​​method, without adding complex structure and cost, the pain point in actual use is solved by only the anti-accidental tear injection-molded connecting bridge 2.

[0017] In this embodiment, the bottom end of the pull strip body 22 is sequentially attached with a fragile film 23 and a bottom layer 24. The fragile film 23 is disposed between the pull strip body 22 and the bottom layer 24. The fragile film 23 is made of a transparent and tear-resistant material, and the surface material can be used for ink printing. Relevant indicator letters can be added to the surface of the fragile film 23 to remind that it needs to be torn apart as a whole when tearing. Due to the addition of the fragile film 23, the pull strip body 22 is prevented from being unable to be torn apart as a whole when tearing. The shapes of the pull strip body 22, the fragile film 23 and the bottom layer 24 are the same as the groove structure of the shallow groove 21.

[0018] In this embodiment, one side of the pull strip body 22 is set in an inverted trapezoidal shape, and a protrusion 222 is fixedly connected at the center of the top of the inverted trapezoid. The protrusion 222 forms a slight drop with the surface of the food packaging bag 1, which can quickly locate the tearing position through touch and avoid accidentally tearing other areas.

[0019] In this embodiment, the surfaces of both the shallow groove 21 and the pull strip body 22 are rounded to avoid scratching the skin. The pre-pressing mark between the shallow groove 21 and the pull strip body 22 is replaced with a laser micro-engraved double-track mark, which greatly reduces the tearing resistance compared to the original design. Children and the elderly can easily pull it open without deviating from the track. The shallow mark is simultaneously engraved during the production of the tear strip using an existing laser printing machine, eliminating the need for additional molds. The length of the shallow mark is controlled at 80% of the total length of the tear strip, ensuring that the tear strip breaks along the mark during tearing and avoiding breakage during transportation due to excessively deep marks.

[0020] In this embodiment, the surface of the protrusion 222 is covered with a PP film and has diagonal fine stripes pressed onto the surface to enhance the friction when gripping the protrusion 222. The diagonal fine stripes pressed onto the surface of the PP film increase the friction between the fingers and the film, preventing slippage when the user tears it. In this embodiment, the interior of the shallow groove 21 is fitted with display areas 1 25, 26 and 3 27 arranged sequentially from the direction near the protrusion 222. The display areas 1 25, 26 and 3 27 have the same shape, are distinguished by reaction test paper of different colors on their surfaces, and are fixed to the shallow groove 21 by heat fusion connection.

[0021] In this embodiment, the injection-molded connecting bridge 2 is parallel to the heat-sealed edge at the top of the food packaging bag 1, so that when the user tears open the heat-sealed edge, they need to simultaneously tear the pull strip body 22, integrating the two actions and reducing the number of operation steps.

[0022] The food packaging bag 1 is existing technology and will not be described further; the present invention also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described further; the "front, back, left, and right" views of this device are... Figure 1 The direction shown in the diagram is the reference.

[0023] Working principle: Locate the tear area at the top of the food packaging bag 1 and find the protrusion 222. Pinch the pull strip body 22 and move it along the tear direction. The buckle 221 will be separated from the slot 211 inside the shallow groove 21 by force. During the separation process, a sound will be generated to remind the user that it has been torn open. Continue to remove it completely along the direction of the shallow groove 21. During the removal process, it can be seen that the shallow groove 21 has three sets of areas. The three different areas are used to place different information. If the first display area 25 is set to a red label, it will react with oxygen in the air within two hours and the color will change. The second display area 26 is set to yellow and will take four hours to react with oxygen. Similarly, the third display area 27 is set to green and will take more than 6 hours to react with oxygen. An instruction is added to the surface of the food packaging bag 1: The best time to eat this food is within 2 hours. It should be consumed within 4 hours. If it exceeds 4 hours, the food is inedible and should be discarded as soon as possible. The label reminds the user to finish eating within the best time.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof 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 process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A food plastic packaging bag with a shelf-life reminder label, comprising a food packaging bag (1), the food packaging bag (1) being used to seal food, serving to isolate it from air and store the food, wherein the top and sides of the top of the food packaging bag (1) are provided with a serrated shape for opening the packaging, characterized in that; A heat-melted connection with an injection-molded connecting bridge (2) is provided at the opening of the food packaging bag (1); The injection-molded connecting bridge (2) consists of a shallow groove (21) and a pull strip body (22). The shallow groove (21) is heat-fused to the serrated, easily tearable part of the food packaging bag (1). The groove inside the shallow groove (21) is fixedly connected to the two sides of the groove (211). The groove (211) has a sliding buckle (221) inside. The buckle (221) is located on both sides of the pull strip body (22). The pull strip body (22) can be torn open at the groove of the shallow groove (21) to separate it. Alternatively, the buckle (221) can be pressed into the groove (211) to achieve the engagement of the pull strip body (22) and the shallow groove (21). The injection-molded connecting bridge (2) will produce a crisp breaking sound when it is first torn. This not only prevents accidental tearing through physical structure but also provides auditory feedback of successful operation through sound.

2. A food plastic packaging bag with an expiration date reminder label according to claim 1, characterized in that: The bottom end of the pull strip body (22) is composed of a fragile film (23) and a bottom layer (24). The fragile film (23) is placed between the pull strip body (22) and the bottom layer (24). The fragile film (23) is made of transparent and tear-resistant material, and the surface material can be used for ink printing. The three groups of pull strip body (22), fragile film (23) and bottom layer (24) have the same shape as the groove structure of the shallow groove (21).

3. A food plastic packaging bag with an expiration date reminder label according to claim 2, characterized in that: One side of the pull strip body (22) is set in an inverted trapezoid, and a protrusion (222) is fixedly connected at the center of the top of the inverted trapezoid. The protrusion (222) forms a slight drop with the surface of the food packaging bag (1), which can quickly locate the tearing position through touch and avoid accidentally tearing other areas.

4. A food plastic packaging bag with an expiration date reminder label according to claim 2, characterized in that: The surfaces of the shallow groove (21) and the pull bar body (22) are both rounded, and the pre-pressing marks between the shallow groove (21) and the pull bar body (22) are changed to laser micro-engraved double track marks.

5. A food plastic packaging bag with an expiration date reminder label according to claim 3, characterized in that: The surface of the bump (222) is covered with a PP film and has diagonal fine stripes pressed on the surface to enhance the friction when holding the bump (222).

6. A food plastic packaging bag with an expiration date reminder label according to claim 4, characterized in that: The shallow groove (21) is fitted with display area one (25), display area two (26) and display area three (27) arranged sequentially from the direction near the protrusion (222). Display area one (25), display area two (26) and display area three (27) have the same shape, and their surfaces are distinguished by reaction test paper of different colors. They are fixed to the shallow groove (21) by heat fusion connection.

7. A food plastic packaging bag with an expiration date reminder label according to claim 1, characterized in that: The injection-molded connecting bridge (2) is parallel to the heat-sealed edge at the top of the food packaging bag (1), so that when the user tears open the heat-sealed edge, the pull strip body (22) needs to be torn open simultaneously, thus integrating the two actions and reducing the number of operation steps.

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