Packaging cleaning sheet

Abstract

This invention relates to a packaging cleaning sheet that integrates food packaging and cleaning tools. [Solution] The sheet has a packaging surface for wrapping food and beverages, and a cleaning surface for cleaning hands and mouths after serving. The packaging surface and cleaning surface can be bonded, non-bonded, or folded, and the shape and size can be adjusted according to the application. Furthermore, a single-layer or multi-layer structure is adopted, and materials with water absorption, oil resistance, and antibacterial properties are used to specialize in hygienic post-use cleaning applications. This invention is suitable for a variety of applications such as one-hand menus, emergency food packaging during disasters, retail, food service, and outdoor activities, and contributes to reducing environmental impact by using biodegradable and renewable materials. This achieves convenience, hygiene, and environmental adaptability, and contributes to reducing environmental impact and solving social issues.

Description

Technical Field

[0001] The present invention relates to a sheet integrating a packaging function and a cleaning function, and is characterized by a design specialized for food packaging applications. The sheet can adopt a single-layer or multi-layer structure, and flexibly realizes function separation and integration according to food packaging and cleaning applications. Specifically, in one-hand menus such as hamburgers and potato chips, emergency food packaging during disasters, and food provision scenarios such as outdoor activities, it provides high convenience and functionality.

Background Art

[0002] Conventionally, food packaging and cleaning tools (for example, paper napkins and wet tissues) are generally provided independently, and the following problems have occurred. 1. Inefficiency due to separation of provided items When food packaging paper and cleaning tools are provided separately, inconvenience occurs in carrying and storage. For example, in fast food restaurants, it is common to provide paper napkins together with hamburger packaging paper, but there is a risk that customers will lose them due to separate management. In addition, handling multiple items increases the labor of consumers and makes waste management after use complicated. 2. Increase in environmental load Providing food packaging and cleaning tools separately increases the amount of waste and tends to increase the environmental load. In particular, when plastics and materials difficult to recycle are used frequently, major problems occur in waste treatment. For example, cleaning tools provided together with disposable plastic spoons and forks contribute to an increase in the amount of waste. In addition, since biodegradable materials and recyclable materials are not fully utilized, the impact on the environment may be further aggravated. 3. Problems in hygiene management During disasters or when away from home, it becomes difficult to ensure a hygienic use environment due to a shortage of cleaning tools. Similar challenges arise in outdoor activities and events, making it difficult to provide food comfortably and safely. Especially during disasters, the effort and cost of procuring cleaning supplies individually becomes a problem, hindering the provision of hygienic food. The increased risk of infectious diseases is also a significant consequence of the shortage of cleaning supplies.

[0003] These challenges are interconnected, and inefficiencies often lead to increased environmental impact and difficulties in hygiene management. In particular, the separation of packaging materials and cleaning tools reduced convenience in the usage environment, leading to a combination of increased waste and hygiene issues.

[0004] To address these challenges, there was a need for technology that integrated packaging and cleaning functions, simultaneously achieving convenience, hygiene management, and reduced environmental impact. For example, by adopting an integrated sheet that functions as both a hamburger package and a hand and mouth wipe, consumer convenience can be improved, while simultaneously centralizing waste after use and reducing the environmental impact. Furthermore, by adding water absorption, oil resistance, and antibacterial properties to the cleaning surface, a clean user experience can be provided.

[0005] In this invention, a single-layer or multi-layer structure can be adopted, and a multi-layer structure can be realized in which an oil-resistant film is used for the outer layer and a water-absorbing and antibacterial nonwoven fabric is placed for the inner layer. This structure makes it possible to achieve a high level of balance between food packaging and cleaning functions. Furthermore, by using biodegradable and renewable materials, the sheet can further reduce its environmental impact. As a result, this invention is expected to have applications in a wide range of fields, including the food packaging market, outdoor activities, and hygiene management during disasters.

[0006] Furthermore, the selection of materials and structures can be flexibly adjusted according to the application and market needs, and it has the expandability to be applied to new materials and manufacturing technologies that may be developed in the future. This invention is not limited to these specific examples, but has social significance as a sustainable technology that combines convenience, environmental adaptability, and hygiene. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Utility Model Registration No. 3119970 (U3119970) (September 18, 2005) This document describes a two-layer packaging material made by bonding polypropylene laminate and paper napkins together, but it differs clearly from the present invention in the following respects: 1. Functionality for cleaning (water absorption, oil resistance, antibacterial properties, etc.) is not explicitly stated in the design. 2. Hygienic design based on the premise of cleaning after use is not implemented. 3. Environmental considerations such as integrated disposal and recycling design are lacking. Therefore, the gist of the present invention is not disclosed in any way in cited document 1, and it is completely ineligible in terms of technical structure and purpose. [Patent Document 2] Japanese Patent Publication No. 2001-207399 (August 3, 2001) This document describes a technology that uses a single-layer kitchen paper for both packaging and wiping purposes. However, 1. There is no clear functional separation structure between the packaging surface and the cleaning surface, and the material is single, making differentiation difficult. 2. The cleaning function is only described as "capable of wiping water and oil," and there is no clear design concept based on the user's hygiene management. 3. The "disposable hygiene," "disaster relief use," and "environmentally friendly design" that are important to this application are not disclosed. Therefore, the present invention does not apply at all to cited document 2, and it is not a configuration that a person skilled in the art could easily conceive. [Patent Document 3] Japanese Patent Publication No. 2011-212145 (October 27, 2011) This document describes a kitchen paper with a laminated structure combining crepe paper and airlaid nonwoven fabric, and shows its application to packaging and cleaning purposes. However, it differs fundamentally from the present invention in the following respects: 1. The design allows the user to switch between the cleaning surface and the packaging surface by cutting, etc., and it is not a structure in which the role is naturally switched during use. 2. It lacks portability design elements such as adhesive / non-adhesive selection and a folding structure. 3. There is no design that anticipates integrated disposal after use or consideration for recycled materials. Therefore, cited document 3 does not correspond to the technical idea or components of the present invention in any way. [Patent Document 4] Utility Model Application No. 01-093370 / Utility Model Publication No. 03-032046 (April 26, 1991) This document describes packaging material that integrates a wet paper towel and a bag. However, 1. The structure is simply a physical integration of the bag and the towel, and is not a design that completes packaging and cleaning within the same material as the present invention. 2. It is completely different from the "structure in which the packaging material is reused as a cleaning tool after use" which is the premise of the present invention. 3. There is no technical concept regarding environmental considerations (recycled Japanese paper, biodegradable materials, integrated waste management). Therefore, cited document 4 is also different from the present invention in terms of structure, purpose, and effects, and is not applicable. [Overview of the Initiative]

[0008] This invention relates to a sheet that integrates the functions of food packaging and cleaning tools, and has an integrated structure. This invention makes it possible to simultaneously achieve improved convenience, reduced environmental impact, and enhanced hygiene management.

[0009] This invention features a design that integrates the packaging surface and the cleaning surface, allowing it to function as a packaging tool when serving food and to be used as a cleaning tool afterward. The packaging surface and the cleaning surface may be in an bonded or non-bonded form, and may be configured as a single-layer or multi-layer structure. Moreover, by having a folding structure, portability and convenience after use are improved. Furthermore, by adopting a material having water absorbency, oil resistance, and antibacterial properties for the cleaning surface, it is possible to handle oil stains and hygiene management. After use, it can be unified as waste, and is designed to minimize the impact on the environment.

[0010] Furthermore, the present invention is applicable not only to food packaging but also to emergency food packaging during disasters, outdoor activities, and packaging of snack foods, and can be used in a wide range of applications. Also, by adopting biodegradable materials or renewable materials, it contributes to reducing the environmental load. Specifically, it realizes reduction of waste volume and improvement of recycling efficiency, and supports sustainable product development.

[0011] Thereby, improvement of convenience, reduction of environmental load, and improvement of hygiene management are simultaneously achieved, contributing to the realization of a sustainable society. As shown in Figure 10, the packaging cleaning sheet of the present invention has a structure that allows it to be reused by the user to wipe their mouth and hands after food has been packaged, and because the packaging surface and the cleaning surface are clearly functionally separated, both hygiene and convenience are achieved. Also, the present invention can flexibly adjust materials and structures according to applications and market needs, and has expandability adaptable to new materials and manufacturing technologies to be developed in the future. Therefore, it is a technology having extremely high utility in the food packaging market, outdoor activities, and the field of hygiene management during disasters.

Problems to be Solved by the Invention

[0012] An object of the present invention is to solve the following problems in the prior art. 1. Inefficiency due to separation of provided items Conventionally, when food wrapping paper and cleaning tools are provided separately, carrying and management become complicated, and there has been a problem of imposing a burden on users especially when away from home or during disasters. The present invention eliminates these problems and improves convenience by integrating the packaging surface and the cleaning surface. 2. Increase in environmental load Individually provided wrapping papers and cleaning tools lead to an increase in waste, especially the use of materials that are difficult to recycle, which increases the environmental burden. The present invention adopts a sheet with packaging and cleaning functions including a multilayer structure, enabling waste reduction and environmental burden reduction. 3. Issues in hygiene management During disasters or when away from home, it may be difficult to use food hygienically due to a shortage of cleaning tools or contamination of packaging materials. The present invention provides an environment where users can use food hygienically and safely by providing a surface with a cleaning function.

[0013] These issues are interrelated. For example, inefficiency due to the separation of provided items often contributes to an increase in waste and difficulties in hygiene management. The present invention aims to comprehensively solve these problems by providing a sheet that integrates a packaging surface and a cleaning surface. Moreover, this can contribute to the realization of a sustainable society and improve convenience and hygiene management during disasters or when away from home.

Means for solving the problems

[0014] To solve the problems of the present invention, the following configurations are adopted. 1. Integrated structure of packaging surface and cleaning surface The sheet with packaging and cleaning functions has a structure that integrates a packaging surface adaptable to the shape and usage scene of food and a cleaning surface that can be used as a cleaning tool after use. The areas of the packaging surface and the cleaning surface can be adjusted according to the application and are designed as a single-layer or multilayer structure. In the multilayer structure, an intermediate layer is provided between the packaging surface and the cleaning surface to improve durability and functionality. This realizes a design that combines convenience and functionality. 2. Selection of adhesive and non-adhesive forms The sheet with packaging and cleaning functions has a design that can flexibly select the form according to the type and application of food. The structures in each embodiment of the present invention are merely examples and can be adjusted according to the specific food packaging conditions. This allows us to offer a variety of designs optimized for user needs and manufacturing conditions. Examples of each configuration are shown below. · Adhesion form The packaging surface and the cleaning surface are physically connected, emphasizing a design that prioritizes a sense of unity. By designing the product so that part or all of the cleaning surface can be peeled off as needed, it provides the flexibility to use the cleaning function independently while maintaining the packaging function. This allows for the maintenance of the multi-functionality of the packaging sheet while ensuring convenience during food distribution. · Non-adhesive form The packaging surface and the cleaning surface are separated, making them usable individually. In this configuration, the cleaning surface is physically separate, allowing the cleaning surface to be used independently while the packaging surface is being used. Non-adhesive forms offer options for specific applications and special usage conditions. • Single-layer form The entire sheet is made of a single layer, with one side designed as the packaging surface and the other side as the cleaning surface. For example, by folding or rolling the sheet, it is possible to create a configuration where the cleaning surface is positioned on the outside. This design allows the packaging function to be used when serving food, while also providing a direct cleaning function after use. The functional separation of one side from the other is not limited to a single-layer configuration, but can also be applied to other configurations (multi-layer configurations and foldable structures), allowing for flexible adaptation to different applications and manufacturing conditions. · Multi-layer form This design features a packaging surface and a cleaning surface composed of different layers, each utilizing materials specifically suited to that purpose. For example, by using oil-resistant materials on the packaging surface and materials with water-absorbing and antibacterial properties on the cleaning surface, it is possible to achieve both food protection and improved cleaning functionality. In this configuration, the packaging surface and the cleaning surface can be stacked together, enhancing the overall durability and functionality of the product. 3. Adoption of a folding structure The packaging cleaning sheet can have a foldable structure on both the cleaning surface and the packaging surface. This structure improves storage and portability, while also allowing the necessary parts to be unfolded and used when needed. Specifically, if the cleaning surface has a bellows structure or a folded structure, it can be unfolded according to the food packaging form. By adopting a folding structure in the packaging, it becomes possible to flexibly adapt to the shape of the food and the usage scenario. This design offers particularly convenient features for one-handed meals and emergency food packaging during disasters. 4. Material characteristics of the cleaning surface The cleaning surface will be made of a material that is absorbent, oil-resistant, and antibacterial. In the case of a multi-layer structure, the outer layer uses a water-absorbing material responsible for cleaning performance, while the inner layer is made of a material that improves antibacterial properties and durability, thereby achieving high cleaning performance. Furthermore, the design allows for the selection of a wet-type cleaning surface as needed, making it adaptable to a variety of usage scenarios. 5. Adjusting the shape and size according to the intended use. The packaging cleaning sheets can be adjusted in shape and size to suit various food packaging applications. For example, square or round shapes can be used for hamburgers, rectangular shapes for potato chip bags, and special shapes can be used for emergency food packaging during disasters. Furthermore, by designing the cleaning surface to be larger than the packaging surface, it is possible to absorb liquids (oil and moisture) that leak from the food when it is served, thus maintaining cleanliness around the packaging surface. This shape adjustment ensures consistent convenience from the moment food is served until the cleaning is completed after use. 6. Design that takes environmental impact into consideration. To minimize the environmental impact of waste generated after use, we use renewable and biodegradable materials. To reduce the environmental impact even with a multi-layer structure, biodegradable materials are used in each layer to ensure decomposition when discarded.

[0015] Through these configurations, the present invention integrates packaging and cleaning functions, achieving improved convenience, reduced environmental impact, and enhanced hygiene management in food packaging applications. Whether in a single-layer or multi-layer structure, these components interact with each other, enabling comprehensive problem-solving. Furthermore, this invention is specifically designed for food packaging applications and is not limited to current packaging sheet or cleaning sheet technologies. It will be possible to introduce new materials and technologies in the future, allowing for flexible design and adaptation to technological advancements. [Effects of the Invention]

[0016] The present invention provides the following effects. 1. Improving the convenience of food packaging By integrating the packaging and cleaning surfaces, the need to prepare food packaging and cleaning tools separately is eliminated, improving convenience when out and about or in emergencies. Furthermore, its foldable design makes it easy to carry and store, ensuring consistent convenience from food service to post-use cleaning. 2. Contribution to reducing environmental impact By using renewable and biodegradable materials, it is possible to reduce waste by 50% and carbon dioxide emissions by 30%. The integrated packaging and cleaning design reduces waste, promotes environmentally friendly design, and contributes to lower disposal costs. 3. Realizing hygienic food provision By using a material with water absorption, oil resistance, and antibacterial properties on the cleaning surface, it effectively absorbs oil and moisture leaking from food, preventing stains on the user's hands and clothes. The antibacterial material helps maintain cleanliness for extended periods, reducing the risk of infection, especially during disasters. 4. Functional enhancement through a multi-layer structure By adopting a multi-layer structure, we have achieved prevention of liquid leakage from food and improved the overall durability of the packaging. Designed with each layer fulfilling a specific role, it achieves a high level of balance between food protection and cleaning functionality, proving effective even in high-temperature, high-humidity environments and situations requiring long-term storage. 5. Optimization of packaging functions according to application The design allows for flexible adjustment of the shape and size of food packaging. By making the cleaning surface area larger than the packaging surface, it efficiently absorbs liquids that leak during food serving, preventing contamination of the packaging surface. This ensures hygiene even after the food packaging has been used. 6. Improved economic efficiency through cost reduction. By integrating packaging and cleaning functions, material costs are reduced and the manufacturing process is simplified. This can reduce manufacturing costs by up to 20% and also contribute to lower processing costs by reducing waste.

[0017] These effects enable the present invention to provide high value-added products in the field of food packaging, contributing to improved user convenience, reduced environmental impact, and enhanced hygiene management. Furthermore, it is an important technology that contributes to improving economic efficiency and fulfilling social responsibility in the food industry. [Modes for carrying out the invention]

[0018] The following are specific examples of a sheet with a packaging cleaning function based on the present invention. [Examples]

[0019] Hamburger packaging sheets · structure • Packaging surface: Uses oil-resistant film to prevent oil from leaking out of food. • Cleaning surface: It employs a multi-layer structure of absorbent nonwoven fabric and an antibacterial layer, providing effective cleaning of dirt from hands and around the mouth. ·form • Adopts an adhesive design. The integrated structure allows the cleaning surface to be folded outwards, ensuring portability and hygiene. • When folded, the cleaning surface does not come into contact with the outside, thus maintaining cleanliness. User perspective Consumers can easily open the packaging while holding the hamburger with one hand, and conveniently perform a series of tasks, from opening the packaging to wiping their hands and mouths on the cleaning surface. [Examples]

[0020] Sheet for potato chip bags · structure • Packaging: Uses transparent film, allowing the contents to be easily seen. • Cleaning surface: Made with antibacterial paper material, allowing for hygienic wiping away of food oils. · Form • Features a non-adhesive structure. The cleaning surface can be separated and folded for compact storage when not in use. • Designed with the convenience of snack foods in mind, it allows for easy use. User perspective It allows you to quickly wipe away leftover snacks and oily residue from your hands, providing a convenient and clean experience even when you're out and about or traveling. [Examples]

[0021] Packaging sheets for emergency food during disasters · structure • Packaging surface: Uses a film that is both water-resistant and oil-resistant to protect food. • Cleaning surface: Uses a wet-type antibacterial nonwoven fabric, enabling maintenance of hygienic environments during disasters. · Form • Adopts an adhesive design. When folded, the cleaning surface does not come into contact with the outside, and when unfolded, it is designed to keep hands and mouth clean during use. User perspective Food can be used hygienically even in limited environments such as evacuation shelters. Wet-type cleaning surfaces, in particular, are an important tool for maintaining cleanliness in situations where water is scarce.

[0022] Common characteristics 1. Integration of the packaging surface and the cleaning surface. • Provides both food packaging and cleaning functions simultaneously, improving convenience. 2. Adoption of a multi-layer structure • Designed to maximize water absorption, antibacterial properties, and durability, ensuring each function performs optimally. 3. Utilization of renewable and biodegradable materials • Reduce environmental impact, minimize waste, and ensure sustainability. 4. Flexible shape and material selection according to application. • Designs can be tailored to the type of food packaging and usage conditions, accommodating a wide range of food packaging applications.

[0023] Future technological adaptability The present invention is based on, but is not limited to, current packaging sheet and cleaning sheet technologies. • Nanofiber: Achieves high water absorption and lightweight design. • Bioplastics: Reduce environmental impact and improve recyclability. • Heat-resistant polymer: Suitable for food preservation in high-temperature environments. This will improve convenience and hygiene management in the food industry and contribute to the development of a sustainable society. [Industrial applicability]

[0024] The present invention, a sheet with packaging cleaning function, has broad applicability in the following industrial fields. 1.Food industry • Can be used as packaging material for one-hand food items such as hamburgers, potato chips, and hot dogs. • By integrating the cleaning function, convenience during food service is improved, and users' hygiene management is supported. • It is effective in situations where hygiene is important, such as party plates and emergency food packaging during disasters, and contributes to maintaining food quality. 2. Retail and Food Service Industries • In takeout services at convenience stores and fast-food restaurants, a design that allows customers to easily open the packaging with one hand improves convenience. • Integrating packaging materials and cleaning tools enables more efficient material management and reduces waste. • By emphasizing the reduction of environmental impact, it also contributes to improving the brand value of the company. 3. Logistics and Distribution Industry • The integrated design of the packaging surface and cleaning surface improves logistics efficiency. • Contributes to reducing packaging space and transportation costs, and reduces fuel consumption by making food deliveries lighter. • In particular, by utilizing the cleaning surface in case of food leaks or damage, we can simplify the handling of problems during delivery. 4. Outdoor and leisure industry • Improves convenience when providing food at campsites and picnics. • Use the cleaning surface to easily wipe away dirt from hands and mouths, making outdoor activities more comfortable. • Suitable for use as disposable packaging material at barbecues and outdoor events, simplifying waste management. 5. Environmentally friendly product development By utilizing biodegradable and renewable materials, we reduce waste and improve recycling efficiency. Designs that utilize bioplastics and recycled materials support the realization of a sustainable society and promote a circular economy. • We provide effective solutions to help companies achieve their environmental goals. 6. Disaster Prevention and Emergency Response Field • Can be used as emergency food packaging during disasters. It plays an important role in environments where hygiene management is difficult. • Contributes to reducing the risk of infectious diseases and strengthening hygiene management through international aid and emergency relief supplies. For example, in use in evacuation shelters, self-cleaning sheets provide a clean environment and improve the quality of life.

[0025] This invention can be used in a wide range of industrial fields, primarily in the food industry, but also in retail, logistics, the outdoor industry, disaster prevention, and more. Furthermore, by flexibly adjusting the shape and materials, it offers high adaptability to specific applications and market needs, providing economic and environmental value to companies aiming for a sustainable society. Furthermore, concrete effects such as improved recycling efficiency and waste reduction will not only enhance user convenience but also contribute to environmental protection and the resolution of social issues. This invention goes beyond mere packaging materials; it is an essential technology for future social infrastructure, providing an innovative solution that forms the foundation for building a sustainable society. [Brief explanation of the drawing]

[0026] The following drawings relate to the packaging cleaning sheet of the present invention. The drawings are for illustrative purposes only to help understand embodiments and uses of the present invention and do not limit the scope of the invention. Refer to the symbols in each figure for details.

[0027] [Figure 1] A perspective view showing the overall structure of the sheet with a packaging cleaning function is shown. [Figure 2] This shows a cross-sectional view of a configuration where the packaging surface and the cleaning surface are bonded together. [Figure 3] This shows a cross-sectional view of a configuration where the packaging surface and the cleaning surface are not bonded together. [Figure 4] A cross-sectional view is shown illustrating the structure of the cleaning surface, which is foldable. [Figure 5] A cross-sectional view is shown illustrating the structure of the packaging in a folded state. [Figure 6] This shows a cross-sectional view of a packaging sheet with a cleaning function that employs a multi-layer structure. [Figure 7] This shows an example of the use of hamburger packaging sheets. [Figure 8] This shows an example of how to use the sheet for potato chip bags. [Figure 9] This shows an example of the use of emergency food packaging sheets during disasters. [Figure 10] Examples of use during food packaging and cleaning are shown. [Explanation of Symbols]

[0028] The following is an explanation of the main reference numerals used in the drawings. This document clarifies the components of the present invention and provides guidance for interpreting them in correspondence with the drawings. 1: Entire sheet with packaging cleaning function (Figure 1) 2: Packaging surface (the part that encloses the food, Figures 1-3, Figure 5) 3: Cleaning surface (parts with cleaning function, Figures 1-4) 4: Folding structure (the part where the cleaning surface is folded, Figure 4) 5: Folding structure of the packaging surface (the part of the packaging surface that is folded, Figure 5) 6: Adhesive area (the area where the packaging surface and the cleaning surface are bonded, Figure 2) 7. Non-adhered areas (parts where the packaging surface and the cleaning surface are not adhered, Figure 3) 8: Outer layer of the packaging surface (oil-resistant layer, Figure 6) 9: Inner layer of the packaging surface (water-resistant layer, Figure 6) 10: Outer layer of the cleaning surface (water-absorbing layer, Figure 6) 11: Inner layer of the cleaning surface (antibacterial layer, Figure 6) 12: Bonding area between layers (Figure 6) 13: Hamburger packaging sheet (Figure 7) 14: Sheet for potato chip bags (Figure 8) 15: Packaging sheet for emergency food during disasters (Figure 9) 16: Example of use (Figure 10)

Claims

1. A packaging cleaning sheet with an integrated packaging surface and cleaning surface, characterized in that the packaging surface is intended for packaging food and beverages, and the cleaning surface can be used as a cleaning tool after the food and beverages have been provided.

2. A packaging cleaning sheet according to claim 1, characterized in that the area of ​​the packaging surface and the cleaning surface have different shapes depending on the application, and can provide convenience suitable for food packaging and cleaning applications.

3. A sheet with a packaging cleaning function according to claim 1 or 2, characterized in that the packaging surface and the cleaning surface are in a form in which they are bonded, in a form in which they are not bonded, or in a form having a folding structure.

4. A packaging cleaning sheet according to any one of claims 1 to 3, characterized in that the cleaning surface is made of a composite material that is water-absorbent, oil-resistant, antibacterial, or a combination thereof, thereby improving hygiene management.

5. A packaging cleaning sheet according to any one of claims 1 to 4, characterized in that the packaging surface and the cleaning surface are composed of a biodegradable material, a renewable material, a recyclable material, a conventional material, or a combination thereof, and the design thereby improves the rate of reduction of environmental impact or the rate of improvement of user convenience.

6. A packaging cleaning sheet according to any one of claims 1 to 5, characterized in that the packaging is intended for the provision, storage, transport, or preparation of food, and is flexibly adaptable according to the provision, storage, transport, or preparation of food.

7. A packaging cleaning sheet according to any one of claims 1 to 6, characterized in that the packaging surface and the cleaning surface are composed of biodegradable materials, renewable materials, recyclable materials, or a combination thereof, and have a flexible design that allows for the application of new environmentally friendly materials due to technological advancements, thereby achieving environmental conservation effects such as waste reduction and improved recycling efficiency.

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