Encapsulating gas materials manufactured from bio-based raw materials

Abstract

This invention relates to encapsulated gas materials. The encapsulated gas materials consist of at least, primarily, bio-based raw materials. This invention primarily provides the following four types of materials. (1) Enclosed gas bubble sheet (2) Enclosed gas pillow (3) Enclosed gas foam sheet (4) Enclosed gas, foam, 3D object Such materials can be used for protection, insulation, and / or construction. Typically, these materials are produced by mixing one or more cellulose-based raw materials into an aqueous solution or aqueous dispersion. Structures are formed from such solutions or dispersions, and gases are introduced into the solutions or dispersions to form gas-filled structures within the material.

Description

Technical Field

[0001] (Field of the Invention) The present invention relates to an encapsulated gas material (or a material with gas encapsulated or a sealed gas material). The encapsulated gas material is at least mainly composed of bio-based raw materials (or raw materials) (or bio-based raw materials (or raw materials) or bio-based wax materials).

[0002] Due to the enclosed air (or air) (embedded in the material), they can be used, for example, as protective materials (or protective materials or protective materials), heat insulation materials (or insulating materials or insulation materials or insulation materials) and / or construction materials (or building materials or construction materials or construction materials). Since such an invention has similar characteristics (or features) to plastic materials (or plastic materials), this new material (or material) can be used as a more sustainable (or sustainable) option (or option) as an alternative to plastic materials used for protection (or protection) (for example, protective plastic packaging materials (or protective packaging materials) (or protective plastic packaging materials or protective plastic packaging materials)), heat insulation (or insulation or insulation) (materials similar to styrofoam (or styrofoam)) and / or construction (or building or construction) (for example, cellular plastics (or cellular plastics)).

[0003] Such inventions could be used as protective packaging materials (or protective packaging materials or protective packaging materials or protective packaging materials) that cushion (or buffer) fragile articles (or items), thereby helping to reduce the risk (or possibility) of damage (or breakage or damage) during transport (or transportation) and / or storage (or storage or preservation or storage). Since such inventions have similar characteristics (or features) to conventional plastic bubble wrap (or plastic bubble wrap), they could be used as a more sustainable alternative (or option) to plastic bubble wrap sheets and bubble wrap bags / mailers. Therefore, such an invention could be used in the same market segment in which plastic bubble wrap is used. (1) Manufacturing and warehousing (Examples include electronics and electrical equipment, automotive and related industries, pharmaceuticals, cosmetics and personal care, food and beverages, etc.) (2) Electronic commerce (or e-commerce) (3) Logistics and transportation

[0004] Such inventions, since they contain air / gas, are also excellent thermal insulation (or insulating material or insulator) and could be used in (4) construction (or building or construction) (for example, as thermal insulation (or insulating material or insulator) in construction (for example, as a substitute for cellular plastic materials used in construction)).

[0005] Furthermore, waterproof versions of fiber-based stock materials (or stock materials) in particular could be used for textile coatings (or fiber coatings). Thus, (5) they become useful materials in fashion (or clothing) and textiles (or fibers). [Background technology]

[0006] (Background of the invention) The rapid increase in plastic production and the resulting plastic pollution have become a global concern because the lifespan (or life cycle) of plastics has several negative impacts on people and the environment. Plastic production relies on the use of non-renewable fossil fuels as the initial raw material (or feedstock), releasing greenhouse gases that contribute to climate change. Furthermore, the lifespan (or life cycle) of plastics is almost linear. 79% of plastics end up in landfills and the environment, 12% are incinerated, and only 9% are recycled (or recycled). Because plastics do not decompose naturally in the environment, the majority of plastics have been accumulating in soil and water bodies for decades. This has led to significant harm and health risks across ecosystems, including plastic ingestion and the release of toxic substances into the environment, through animal interaction.

[0007] There is an urgent and great need for sustainable alternatives to plastic materials (that can help combat plastic pollution). At the same time, there is a need to address the growing demand for protective packaging materials and construction materials. Due to the plastic-related issues mentioned above, plastic-based materials (or materials made of plastic or plastic-based materials) (e.g., plastic packaging materials (or plastic packaging materials or plastic packaging materials or plastic packaging materials), polystyrene foam (or styrofoam), cellular plastics (or cellular plastics)) are not sustainable materials. So-called "biodegradable bubble wrap" and "oxo-degradable bubble wrap" (e.g., those from BioGone, UKPackaging, and Kingfisher Packaging) are combinations of plant-based raw materials (or feedstock) and petrochemical plastic raw materials (or petrochemical plastic feedstock), and often contain harmful additives and / or toxins. Therefore, they are not a sustainable alternative to conventional plastic bubble wrap. There are also wrappable materials made from paper (e.g., paper bubble wrap, GreenWrap, and Flexi-Hex) or cardboard (e.g., corrugated bubble). However, these materials do not resemble plastic bubble wrap (i.e., they do not trap air inside the bubble) and are not available in a variety of colors. Mushroom packaging also exists. Mushroom packaging is made from mycelium. Biodegradable packing peanuts (or biodegradable packing peanuts) also exists. Biodegradable packing peanuts are made from starch. However, these are not like bubble wrap (i.e., they are not wrapable sheets, nor do they trap air inside the bubble), nor are they available in a variety of colors. [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] Therefore, there are currently no available protective packaging materials that offer a sustainable alternative to plastic, nor are there any construction / insulation materials. On the other hand, there are no plastic-free, non-toxic, fiber-based, biodegradable, wrapable, customizable in size, shape, or color, that are physically similar to or visually similar to plastic materials (e.g., bubble wrap). [Means for solving the problem]

[0009] (Summary of the invention) The present invention relates to a sealed gas material (or a material containing gas or a shielded gas material) (including a sealed gas material (or a material containing gas or a shielded gas material)). The sealed gas material is composed of at least a main portion of a bio-based material (or a bio-based material). The present invention primarily provides the following four types of materials. (1) Enclosed gas bubble sheet (or gas-filled bubble sheet or sealed gas bubble sheet) (2) Sealed gas pillow (or a gas-filled pillow or sealed gas pillow) (3) Sealed gas foam sheet (or gas-filled foam (or foam or foamy substance or foamy material) sheet or sealed gas foam sheet) (4) Sealed gas foam 3D object (or gas-filled foam (or foam or foamy substance or foamy material) 3D object or sealed gas foam 3D object) Such materials can be used for protection, insulation, and / or construction. Therefore, such materials can be used, for example, to protect articles (or items) from damage caused by external pressure or impact or by the movement or collision of an article (or item). Such materials can also be used, for example, to protect articles (or items) that require insulation, thereby preserving the article (or item). Furthermore, such materials can be used, for example, as a coating or as a filler. For example, such materials can be used as a substitute for conventional bubble wrap materials.

[0010] The sealed gas material (or gas-filled material or sealed gas material) of the present invention is mainly composed of a cellulose-based material (or cellulosic material or cellulose-based material), preferably a single material (or monomaterial). However, it may further include other materials such as a plasticizer and / or other materials that modify the operating parameters for the formation of a desired bubble.

[0011] The properties of the sealed gas material (or gas-filled material or shielded gas material) (e.g., bubble size, distribution, color, haptic properties) can be adjusted by operational parameters. Some examples of operational parameters include the ratio and concentration of materials, the viscosity of the solution / dispersion, the surfactant / surfactant or surface-active material, and the baking / drying temperature.

[0012] Such sealed gas materials (or materials containing gas or sealed gas materials) are bio-based, 100% biodegradable, compostable, and non-toxic, thus the present invention provides a sustainable alternative to plastic bubble wrap. Here, since plastic bubble wrap is often used only once and then discarded, the shift (or transition) from plastic to sustainable packaging materials (or sustainable packing materials or sustainable packing materials) is accelerating.

[0013] Such an encapsulated gas material (or a material with gas encapsulated or a shielding gas material) is mainly composed of bio-based (or bio-base) raw materials (or raw and processed materials). Therefore, the present invention provides a sustainable solution (or a sustainable solution) as an alternative to plastic-based materials (or plastic-made materials) (for example, plastic packaging materials (or packing materials or packing materials)). Here, since plastic-based materials (or plastic-made materials) are often discarded after only one use, the shift (or transition) from plastic to sustainable materials (or sustainable materials) is accelerated.

Brief Description of Drawings

[0014] [Figure 1] Figure 1 is a competitive landscape (or an overview of competition or a competitive landscape), comparing the bubble wrap of the present invention with similar existing off-the-shelf solutions (or solutions). [Figure 2] Figure 2 shows various samples (or specimens) of bubble wrap. [Figure 3] Figure 3 shows an example of packaging an article with a colored bubble wrap and the bubble wrap of the present invention. [Figure 4] Figure 4 shows an example of packaging an article with the bubble wrap of the present invention. [Figure 5] Figure 5 shows an example of packaging an article with the bubble wrap of the present invention. [Figure 6] Figure 6 shows an example of packaging an article with the bubble wrap of the present invention.

Modes for Carrying Out the Invention

[0015] (Detailed Description of the Invention) The present invention relates to a sealed gas structure (or a structure (or object or structure) or sealed gas structure). The structure has a cavity filled with gas (or gas) within a material, for example, forming a gas-filled pocket (or gas-filled pocket). Preferably, the form (or shape) of such a structure (or object or structure) is a sheet or pillow or other 3D object, and such a structure (or object or structure) is composed of at least primarily a bio-based (or bio-system or biological system) raw material (or raw material).

[0016] Examples of cellulose-based materials (or cellulosic materials or cellulose-based materials) that can be used in the structures (or structures or structures or structures) of the present invention include nanofibrillated cellulose (NFC), microfibrillated cellulose (MFC), cellulose nanocrystal (CNC), microcrystalline cellulose (MCC) (which may also be fibrillated), and cellulose nanofiber (CNF), as well as cellulose derivatives. Examples of cellulose derivatives include carboxymethyl cellulose (CMC), methyl cellulose (MC), hydroxypropyl cellulose (HPC), and sodium carboxymethyl cellulose (NaCMC). Typically, these are used in aqueous solutions or aqueous dispersions (or dispersions or dispersions) at concentrations of preferably 30 to 1000 g / l.

[0017] Potential additives that can be used include chemicals that maintain bubbles and foam (or foam or foamy substance) (e.g., glycerol (C3H8O3)), sorbitol, and rheological modifiers. The concentration of the additives varies. Typically, the concentration of the additive is less than 100 g / l, preferably 10 to 100 g / l, and more preferably 30 to 80 g / l. For example, a wide range of concentrations can be used for CMC. For instance, 0.1 to 20% by weight, preferably about 3% by weight. Furthermore, glycerol is preferably used at a concentration of about 50 g / l to provide the optimal product. Additionally, dyes (or pigments) or pigments (or dyes or pigments) may be added.

[0018] The gas may be air, nitrogen (N2), oxygen (O2), carbon dioxide (CO2), nitrous oxide (N2O), or any mixture thereof. Preferably, air is used due to its availability.

[0019] Typically, the above materials are prepared (or manufactured) by mixing one or more cellulose-based (or cellulosic) raw materials (or raw materials) with appropriate additives to form an aqueous solution or aqueous dispersion (or dispersion or dispersion). From such an aqueous solution or aqueous dispersion (or dispersion or dispersion), a structure (or object or structure or structure) (e.g., a sheet) is produced (or formed). Then, a gas or air is added to an aqueous solution or aqueous dispersion. This is done by methods of addition / injection, mixing, reaction, or foaming, forming bubble-like structures in cellulose-based materials (e.g., carboxymethylcellulose and nanofibril cellulose). At this time, the gas is trapped or sealed within the material to form a gas-filled cavity. The viscosity (or viscosity) of the solution is adjusted (or controlled) to retain gaseous (or gaseous) bubbles, and then the material is dried to form a three-dimensional bubble film (or solid bubble film), sheet or other similar structure (or structure or form) to produce a bubble wrap. If necessary, the viscosity (or viscosity) of the formed structure (or material or structure) can be adjusted (or controlled) after partial solidification (or solidification or partial solidification). For example, viscosity (or viscosity) can be adjusted by changing the amount (or content or content) and pressure (or pressure) of the gas (or substance), the concentration of the material (or material), the surface tension and the operating temperature (or operating temperature or operating temperature) (e.g., the drying / baking time).

[0020] Such structures (or materials or structures) are in the form of sheets and are typically prepared (or manufactured) by spraying (or distributing) the solution or dispersion (or dispersion or dispersion) prepared above onto any surface to a desired thickness. For example, such structures are typically prepared (or manufactured) by pouring them into a flat container. The thickness of the sheet may be, for example, 0.1 to 7 cm. Preferably, it is 0.2 to 6 cm, and more preferably 0.5 to 1 cm. 3D structures (or 3D objects or 3D structures) are typically prepared by molding. 3D structures may be larger than a sheet. Typically, to simplify their manufacture, their width is limited to approximately 5 meters. Examples of 3D structures include a slightly flattened object with dimensions of 4 × 3 × 5 m, or a packing of peanuts with dimensions of 3 × 2 × 1 cm.

[0021] Appropriate techniques used in the gas capture process (or gas trap step) in preparation (or manufacture) include mixing steps for forming foam (or bubbles or foamy bodies or foamy substances), foam flotation, headbox air injection, and slot die curtain coating and roll coating. Furthermore, a flotation device can be used to prepare large quantities of wet foam material. On an industrial scale, it is possible to generate (or form) several types of bubbles simultaneously.

[0022] Another alternative is to trap or seal air between two or more films of the stock material. If necessary, the films (i.e., the above solutions or dispersions produced from cellulose-based materials) are dried or partially dried.

[0023] A third alternative method involves generating (or forming) a gas (or vapor) in the material through a chemical reaction. As a result, carbon dioxide (CO2) is generated (or formed). The reaction is typically selected from electrolytic and fermentation reactions. In fermentation reactions, carbohydrates and yeast are added to this solution or dispersion (or dispersion or dispersion). Gas is then produced (or formed).

[0024] Furthermore, gas can be generated (or formed) in the material using cavitation or boiling. Alternatively, physical methods (e.g., nucleation, sparging, ultrasonic or supersonic vibration) can be used.

[0025] Such foaming (or foaming or forming) or gas filling (or gas filling or gas sealing or gas sealing) is preferably followed by solidification (or solidification or solidification) of the structure (or structure or structure or structure). For example, by partially drying or heating the structure (or material or structure) at room temperature. Preferably, heating is done at a temperature of <350°C, preferably <100°C, actually 40–80°C, e.g., 50°C, preferably for a period of 5 seconds to 48 hours, e.g., 20 minutes to 24 hours or 20 minutes to 2 hours. Here, a three-dimensional (or solid) but typically flexible (or pliable) form is obtained. Such a form may include intact (or intact) gas bubbles (or gas bubbles).

[0026] If necessary, the foaming / gas filling / gas sealing and solidification process (or steps) may be repeated until bubbles of the desired dimensions (or size or size) and distribution are filled into the material (up to 15 times, preferably 2 to 8 times, particularly 4 to 6 times). Furthermore, a structure (or object or structure) in which such a gas (or gas) is captured (or trapped) or sealed (or sealed) may be baked or dried. Typically, it may be dried by air drying (or wind drying or air drying) or heat drying (or heating drying or thermal drying), preferably at a wide temperature range from room temperature to a rising temperature (<100°C), more preferably at a temperature of 40 to 80°C. This results in a three-dimensional structure (or object or structure) (or solid structure). Such final baking or drying processes (or steps) can be carried out over a longer period (for example, up to 48 hours, for example, overnight).

[0027] The formation of an intact, three-dimensional, or solid film, sheet, or other similar form requires a drying process. In such a drying process, the solvent is removed from the film, sheet, or other similar form containing gaseous bubbles over a specified period of time by heating, blowing, or reducing pressure. The conditions for solidification can be adjusted with respect to the time of the vapor saturation and drying steps. This allows for the creation of a desired bubble sheet structure (bubble sheet structure) (e.g., bubble dimensions and distribution and properties, e.g., mechanical properties, flexibility and haptic properties).

[0028] The above-mentioned sealed gas (or sealed gas or shielding gas) can generate (or form) bubble-like structures (or structures or forms or structures). Therefore, the term "bubble" can be used to describe the above-mentioned structure (or structure or framework). Similarly, "bubble wrap" can be used to specify (or define) a complete material (or finished product).

[0029] In a preferred embodiment, the generated (or formed) bubbles (bubbles) are densely packed together and function as mechanical protection. Various forms of bubble wrap can be obtained by films, sheets or other similar forms comprising gas bubbles (or gas bubbles). For example, they can be applied to packaging (or package or wrapping) applications for protecting (or protecting or protecting) articles (or items).

[0030] Therefore, in a method for preparing (or manufacturing) a plastic-free, non-toxic, fiber-based, biodegradable bubble wrap, gas or air is introduced into an aqueous solution or aqueous dispersion of a cellulose-based material by injection or foaming (a method for forming bubbles in the material). The viscosity (or viscosity) of an aqueous solution or aqueous dispersion (or dispersion or dispersion) is adjusted (or adjusted) to retain gaseous (or gaseous) bubbles. The material is then dried by heating (or heat), blowing (or blowing), or reducing pressure (or negative pressure). This produces (or forms) a three-dimensional (or solid) film, sheet or other similar form containing the bubbles.

[0031] In one embodiment, such a method provides a film. The thickness of such a film may be 0.5 to 1 cm in the bubble-free region (or area).

[0032] Such films have advantages similar to plastics, and their colors can be customized. Furthermore, the bubble wrap of the present invention can be used as a sustainable packaging material (or sustainable packing material or sustainable packing material), and is a better environmentally and ethically sound option compared to its main competitor, plastic bubble wrap (or plastic bubble wrap). The use of such sustainable packaging materials (or sustainable packing materials or sustainable packing materials) of the present invention provides a sustainable action that helps secure the future of the planet.

[0033] (Description of Embodiments of the Invention) In one embodiment, one or more solutions or dispersions (or liquid dispersions) of two or more different cellulose-based (or cellulosic) raw materials (or raw materials) are mixed together. This produces (or forms) an aqueous solution or aqueous dispersion (or liquid dispersion). A bubble wrap is produced (or formed) from such an aqueous solution or aqueous dispersion.

[0034] Examples of cellulose-based (or cellulosic) materials include nanofibrillated cellulose (NFC), microfibrillated cellulose (MFC), cellulose nanocrystal (CNC), microcrystalline cellulose (MCC) (MCC may be fibrillated), and carboxymethyl cellulose (CMC). Typically, these are used in aqueous solutions or aqueous dispersions (or dispersions or liquids). Preferably, the concentration is 30 to 1000 g / l.

[0035] Additives (e.g., chemicals that maintain bubbles and foam (or foamy substances) (e.g., glycerol (C3H8O3)), sorbitol, rheological modifiers)) can be used in various concentrations. Typically, the concentration is less than 100 g / l, preferably 10 to 100 g / l, and more preferably 30 to 80 g / l. For example, glycerol can be used at a concentration of approximately 50 g / l. This allows for the provision of an optimal product. Additionally, dyes (or pigments) or pigments (or dyes or pigments) may be added.

[0036] All of these materials are bio-based, 100% biodegradable, compostable, and non-toxic.

[0037] The prototype mixture consists of two different solutions. These solutions are prepared separately and then mixed together or simultaneously. A preferred mixing ratio is 9:1 to 1:9, more preferably 3:7 to 7:3, and most preferably 1:1.

[0038] In a preferred embodiment, two different solutions or dispersions (or dispersions or liquids) are prepared separately and then mixed together to produce (or form) an aqueous solution or aqueous dispersion (or dispersion or liquid). Preferably, the first solution is obtained by dissolving carboxymethyl cellulose (CMC) in water or an aqueous solution. Preferably, the second solution or dispersion (or dispersion or liquid) is obtained by dissolving or dispersing nanofibrillary cellulose (NFC) and glycerol in water or an aqueous solution.

[0039] Typically, cellulose-based materials (or cellulosic materials) (one or more) can be mixed (or combined (or compounded)) in water over a period of 1 to 24 hours by hand, for example, by using a spoon, by using a hand blender (or hand mixer), or by using a magnetic stirrer (or magnetic agitator).

[0040] In one embodiment, a structure (or object or structure) is produced (or formed or prepared) from an aqueous mixture of cellulose-based (or cellulosic) materials (one or more) by spraying (or distributing) the solution or dispersion (or dispersion or dispersion) prepared as described above onto any surface until a desired thickness is reached. For example, a film-like sheet is produced (or formed or prepared) by pouring it into a flat container. The thickness of the sheet may be, for example, 0.5 to 1 cm.

[0041] In the above-mentioned structure (or structure or construction or structure), in order to form (or achieve) bubbles, preferably, air (or pneumatics) is supplied (blown) to the above-mentioned solution or dispersion. Advantageously, air (or pneumatics) is supplied (blown) at a depth close to the surface of the film (or membrane). This may be done, for example, by using a syringe, or a needle or other similar instrument having a pointed, hollow tip.

[0042] Such films (or membranes) may be baked or partially dried (typically by heat drying, preferably at 40-80°C, e.g., 50°C). Such firing (or baking) or partial drying may take 20 minutes to 2 hours, for example, 1 hour. Furthermore, after partial drying, more bubbles may be added to the above-mentioned structure (or structure or building).

[0043] In one embodiment, the drying and bubble formation process is repeated 2 to 8 times until such material is filled with bubbles having a desired size and distribution.

[0044] Finally, the bubble structure (or structure or structure) may be baked or dried again (typically by heat drying, preferably at 40-80°C). This will yield a three-dimensional structure (or solid structure). Such a structure can then be removed from the container. Such final baking or drying may be carried out over a longer period (e.g., up to 48 hours, e.g., overnight).

[0045] (Example embodiment) 1. Sealed gas sheet material (or sheet material containing gas or sealed gas sheet material) Chemicals (e.g., glycerol (C3H8O3)), sorbitol, rheological modifiers (e.g., carboxymethyl cellulose (CMC)), and the solid content of the solution were investigated in various amounts to maintain bubbles and foam (or foamy or foamy substances). Furthermore, various cellulose derivatives were tested. These included nanofibrillated cellulose (NFC), microfibrillated cellulose (MFC), cellulose nanocrystal (CNC), and microcrystalline cellulose (MCC) (MCC may also be fibrillated). Furthermore, various options have been developed to make materials waterproof (or moisture-proof or moisture-repellent).

[0046] Examples of embodiments of the present invention (1) The first solution is prepared by dissolving carboxymethyl cellulose (CMC) in water / aqueous solution. For example, dissolve 3 grams of powder in 97 ml of water. For small quantities, mixing can be done using a hand blender (or hand mixer), a magnetic stirrer (or magnetic agitator), or other mixing methods.

[0047] (2) The second solution is prepared by dissolving / dispersing nanofibrillar cellulose (NFC) and glycerol in water / aqueous solution. The material ratios may be, for example, as follows, but are not limited to these ratios. 100 grams NFC 10 ml glycerol 200ml water

[0048] 1. Measure the NFC and water into a beaker and mix them using a spoon or other mixing method. 2. Place the magnet in the beaker and then place the beaker in a magnetic stirrer. The magnet must rotate uniformly. Mixing should continue for at least 1 hour and up to 24 hours until a homogeneous solution / dispersion is obtained. 3. Add glycerol to the mixture and mix for a while, then mix for a further hour, for example.

[0049] (Manufacturing of bubble wrap) 1. Prepare (or generate or form) two solutions and mix them using, for example, a hand blender (or hand mixer) (for example, in a 1:1 ratio). 2. Add dyes and / or pigments. Note: This step is optional. 3. Pour the mixture into a flat container to obtain a film of any thickness (e.g., 0.5-1 cm). 4. For example, a Pasteur pipette is used to blow air / gas bubbles into a solution. 5. The film is baked / dried at a specific or variable temperature at regular intervals (for example, 50°C for 1 hour). 6. Blowing (or using a pipette) more bubbles into the drying film (for example, on a laboratory scale). 7. The steps of steps 5 and 6 described above are repeated until the material is filled with bubbles of the desired dimensions and distribution. 8. The final dried bubble film is produced (or formed) by baking / drying (for example, drying overnight at 50°C).

[0050] Other possible mixtures include additives to make the bubble wrap waterproof (or moisture-proof or water-repellent). It is also necessary to test whether other ratios may work. The color, size, shape, and distribution of bubbles can be adjusted by various parameters (e.g., air / gas content and pressure, material concentration, surface tension, solution / dispersion viscosity, and operating temperature (e.g., drying / baking time)).

[0051] (Technologies for bubble generation (or formation or generation) and drying) The focus is on the research and testing of existing continuous industrial bubble and foam generation technologies (or formation technologies or generation technologies) derived from the paper industry. Emphasis is also placed on determining the optimal technology for scale-up testing. Examples of such technologies include (but are not limited to) the following: Foam flotation, Headbox air injection, and Slot die curtain coating, and Roll coating, and Conventional manufacturing techniques for plastic bubble wrap (or plastic bubble wrap) (in which a sheet of plastic is pressed (or compressed) with a cover (or surface) together with a bubble-sized cavity at the nip of a roll), and A technology for generating (or forming or generating) foam (or bubbles or foamy substances) (this technology utilizes an aqueous foam (or bubbles or foamy substances) containing air bubbles as a carrier fluid (or carrier fluid) for the raw material (or raw material)).

[0052] The introduction (or inlet) of air (or pneumatics) may be a continuous or intermittent (or pulsed) air feed. This results in optimization of bubble generation (or formation) in viscous stock materials (or viscose stock materials). [Examples]

[0053] Example 1 Encapsulated gas sheet material (or sheet material or shielding gas sheet material containing gas) (bubble wrap) The material of the present invention consists of a mixture of the following two types of solutions. (1) 3% carboxymethylcellulose (in water) (2) A mixture of nanofibrillar cellulose (NFC) and glycerol (in water) Prepare two solutions separately. Then, mix the two solutions together in a 1:1 ratio.

[0054] (1) Preparation of 0.1% to 25% CMC (w / v) (in water) (1% to 6% is optimal). Material 3g of CMC (high viscosity) (powder) 97 mL of tap water

[0055] 1. Weigh the CMC in a beaker and add water to prepare a 3% solution. 2. Using a hand blender (or hand mixer) or magnetic stirrer (or magnetic steering), mix the solution at room temperature until the CMC is dissolved.

[0056] (2) Preparation of NFC-glycerol mixture (in water) Material 100g NFC 10 mL of glycerol 200 mL tap water

[0057] 1. Weigh the NFC into a beaker, add water, and mix using a spoon. 2. Place a magnetic rod into the mixture. Place this beaker in a magnetic stirrer. Mix at room temperature (for at least 1 hour, up to 24 hours). During this time, rotate the magnet in a controlled manner. 3. Add glycerol and continue mixing. During this time, rotate the magnet (or magnet) for 1 hour.

[0058] Preparation (or manufacture) of bubble wrap Material 3% CMC (in water) NFC-glycerol mixture (in water) (Optional components (or choices or options): Dyes / Pigments) Hand blender (or hand mixer) Container (or container) (a rigid container with a flat, smooth bottom) spoon Pasteur pipette (a pipette with a flexible and narrow nozzle / tip)

[0059] 1. Prepare two types of solutions (prepare them as described above). 2. Using a hand blender (or hand mixer), mix the two solutions at room temperature (in a 1:1 ratio). 1. Optional ingredients (or choices or options): Add dyes (or pigments) or pigments (or colorants or pigments). 3. Pour the solution into a container (or vessel) (a container with a flat, smooth bottom) and spread it as evenly as possible with a spoon into a layer 0.5 mm to 1 cm thick. 1. Note: The container should not be flexible and should be able to withstand heating up to at least 50°C. 4. Use a Pasteur pipette (one with a flexible, narrow nozzle / tip) to inject (or spray) air bubbles into the solution. 1. Note: Air bubbles should be generated (or formed) near the surface of the solution layer, not at the bottom. This ensures that the bubbles remain intact. 2. Note) The quantity, dimensions (or size) and frequency (or frequency) of bubbles can be changed. Also, even if bubbles are adjacent to other bubbles, they can remain intact. 5. Baking / drying (at 50°C for 1 hour) 1. Note: Air bubbles may burst during firing (or baking). 6. Repeat steps 4 and 5 until the desired air bubble coating (or cover or coverage) is achieved. 7. Bake / dry at 50°C overnight or until the material solidifies. 8. Carefully remove the bubble wrap sheet from the container by hand.

[0060] (result) Bubble wrap is flexible and can be used to wrap various articles (or items), and the bubbles embedded within the sheet provide a cushioning effect. Such bubble wrap may be translucent or can be colored in various colors. Such sheets can take on various shapes and dimensions depending on the container. In such a sheet, the size (or dimensions or dimensions) and / or frequency of the bubbles (or air bubbles) can be changed.

[0061] 2. Enclosed gas pillow (or gas-filled pillow or shielded gas pillow) / Pre-dried sheet (or pre-dried sheet or pre-dry sheet or pre-dried sheet) Furthermore, by trapping or sealing air between two thin, dried films of such stock material, products in the form of a sealed gas pillow (or gas-filled pillow or shielded gas pillow) can also be prepared (or manufactured). Therefore, as described above, solutions / dispersions (or liquids or dispersions) of such materials can be prepared (or manufactured).

[0062] Preparation (or manufacture) The recipe and preparation (or manufacture) of such sheets are the same as or similar to the enclosed gas sheet materials described above, except that bubbles are not added to the wet stock. Instead, these sheets are dried and then pressed together (using water, CMC, or the original wet stock). The sheets are bonded together and then allowed to dry, causing them to expand and trap or seal gas between them. The dimensions (or size) of the resulting bubble / gas pockets can be very small (similar to a foam sheet) or large enough to be several meters in size.

[0063] Example 2 Gas-filled pillow (or a gas-filled pillow or shielded gas pillow) The material of the present invention consists of a mixture of the following two types of solutions: (1) and (2). (1) 3% carboxymethylcellulose (in water) (2) A mixture (or blend) of nanofibrillar cellulose (NFC) and glycerol (in water) Prepare two solutions separately. Then, mix the two solutions together in a 1:1 ratio.

[0064] (1) Preparation of 0.1% to 25% CMC (w / v) (in water) (1% to 6% is optimal).

[0065] Material 3g of CMC (high viscosity) (powder) 97 mL of tap water

[0066] 1. Weigh the CMC in a beaker, add water, and prepare a 3% solution. 2. Using a hand blender (or hand mixer) or magnetic stirrer (or magnetic steering), mix the solution at room temperature until the CMC is dissolved.

[0067] (2) Preparation of NFC-glycerol mixture (in water) Material 100g NFC 10 mL of glycerol 200 mL tap water

[0068] 1. Weigh the NFC into a beaker, add water, and mix using a spoon. 2. Place a magnetic rod (or magnet rod) into the mixture and place the beaker in a magnetic stirrer (or magnetic stirrer). Mix at room temperature for at least 1 hour and up to 24 hours, rotating the magnet in a controlled manner. 3. Add glycerol and continue mixing. During this time, perform magnetic stirring for 1 hour.

[0069] 3. Enclosed gas foam sheet (or sheet of gas-filled foam (or foam or foamy substance or foamy material) or shielded gas foam sheet) Encapsulated gas foam (or gas-filled foam (or foam or foamy substance)) can be prepared (or manufactured) using a recipe that is nearly identical to that of an enclosed gas sheet ("bubble" sheet). The difference here is that, in the above recipe, water and soap are added to the solution / dispersion of the cellulose-based material. This produces a foamy material containing many bubbles of various dimensions. The materials (or components) used as an example in this embodiment consist of the following (1) to (4). (1) 3% carboxymethylcellulose (in water) (2) A mixture (or blend) (in water) of nanofibrillar cellulose (NFC) and glycerol, as well as soap. (3) water (4) soap (or soap) Solution 1 and Solution 2 are prepared separately, and then mixed together in a 1:1 ratio. Next, this solution is further diluted with water in a 1:1 ratio, and 0.5 g of soap is added to this diluted solution (100 ml).

[0070] Preparation (or manufacture) of foam sheets (or sheets of foam (or foam or foamy material)) Material 3% CMC (in water) NFC-glycerol mixture (or blend) (in water) soap (or soap) (Optional components (or choices or options): Dyes / Pigments) Hand blender (or hand mixer) Container (or container) (a rigid container with a flat, smooth bottom) spoon

[0071] (1) Preparation of 0.1% to 25% CMC (w / v) (in water) (1% to 6% is optimal). Material 3g CMC (high viscosity powder) 97 mL of tap water

[0072] 1. Weigh the CMC in a beaker and add water to prepare a 3% solution. 2. Using a hand blender (or hand mixer) or magnetic stirrer (or magnetic steering), mix the solution at room temperature until the CMC is dissolved.

[0073] (2) Preparation (or manufacture) of NFC-glycerol mixtures (or mixtures) (in water) Material 100g NFC 10 mL of glycerol 200 mL tap water

[0074] 1. Weigh the NFC into a beaker, add water, and mix using a spoon. 2. Place a magnetic rod (or magnet rod) into the mixture and place the beaker in a magnetic stirrer (or magnetic stirrer). Mix at room temperature for at least 1 hour and up to 24 hours, rotating the magnet in a controlled manner. 3. Add glycerol and continue mixing. During this time, perform magnetic stirring for 1 hour.

[0075] As explained above, two types of solutions are prepared. 1. Using a hand blender (or hand mixer), mix the two solutions in a 1:1 ratio at room temperature. a. Optional ingredients (or choices or options): Add dyes (or dyes) / pigments (or pigments or dyes). 2. Using a hand blender (or hand mixer), dilute this solution with water in a 1:1 ratio at room temperature. 3. Add 0.5g of soap to this diluted solution (100ml). 4. Mix using a hand blender (or hand mixer) (and a flotation device if necessary). 5. Pour the above solution (viscosity: approximately 1750 mPa·s) into a container (or vessel) (a container with a flat, smooth bottom) and spread it as evenly as possible in layers using a spoon (layers with a thickness of 0.5 mm to 1 cm). a. Note: The container should not be flexible and should be able to withstand heating up to at least 50°C. 6. The material is baked / dried at 50°C in an air-flow device for at least 6 hours, or overnight, or until the material solidifies. 7. Carefully remove the sheet of foam (or foam or foamy substance) from the container by hand.

[0076] (result) A foam sheet (or a sheet of foam (or foam or foamy substance)) is flexible and can wrap various articles (or items) and can provide a cushioning effect due to the air bubbles (or gas bubbles) embedded within the sheet. Such materials may be white or beige, or they may be colored in various colors. Such sheets may be made into various shapes and dimensions depending on the container. In such sheets, the dimensions (or size or dimensions) and / or frequency of air bubbles can be changed.

[0077] 4. Enclosed gas foam (or foam, foamy substance, or foamy material) 3D object (or 3D object of gas-enclosed foam (or foam, foamy substance, or foamy material) or shielded gas foam 3D object) (commonly known as packing peanuts) The materials used to create (or manufacture) three-dimensional objects (or three-dimensional objects or 3D objects) from the above-mentioned foam materials (or materials for foam (or foam or foamy substance or foamy material)) are based on the recipes described in the foam sheet (or sheet of foam (or foam or foamy substance or foamy material)). The main difference is that instead of using a flat / planar sheet containing a small amount of gas, a foam material (or foam / bubble / foamy material) is used to create (or manufacture) a 3D object. For example, such a 3D object may be a round object. Such an object can be used as packaging peanuts.

[0078] The material of the present invention consists of the same mixture as described above for the foam sheet (or sheet of foam (or foam or foamy substance or foamy material)). (1) 3% carboxymethylcellulose (in water) (2) A mixture (or blend) (in water) of nanofibrillar cellulose (NFC) and glycerol, as well as soap. (3) water (4) soap (or soap) Prepare Solution 1 and Solution 2 separately. Then, mix them together in a 1:1 ratio. Next, this solution is further diluted with water in a 1:1 ratio, and 0.5 g of soap is added to this diluted solution (100 ml).

[0079] Preparation (or manufacture) of foam (or bubbles or foamy material or foamy substance) or 3D objects (or foam, 3D, object) Material 3% CMC (in water) NFC-glycerol mixture (or blend) (in water) soap (or soap) (Optional components (or choices or options): Dyes / Pigments) Hand blender (or hand mixer) Container (or container) (a rigid container with a flat, smooth bottom) spoon

[0080] (1) Preparation of 0.1% to 25% CMC (w / v) (in water) (1% to 6% is optimal). Material 3g of CMC (high viscosity) (powder) 97 mL of tap water

[0081] 1. Weigh the CMC in a beaker and add water to prepare a 3% solution. 2. Using a hand blender (or hand mixer) or magnetic stirrer (or magnetic steering), mix the solution at room temperature until the CMC is dissolved.

[0082] (2) Preparation (or manufacture) of NFC-glycerol mixtures (or mixtures) (in water) Material 100g NFC 10 mL of glycerol 200 mL tap water

[0083] 1. Weigh the NFC into a beaker, add water, and mix using a spoon. 2. Place a magnetic rod (or magnet rod) into the mixture and place the beaker in a magnetic stirrer (or magnetic stirrer). Mix at room temperature for at least 1 hour and up to 24 hours, rotating the magnet in a controlled manner. 3. Add glycerol and continue mixing, then perform magnetic stirring for 1 hour.

[0084] As explained above, two types of solutions are prepared. 1. Using a hand blender (or hand mixer), mix the two solutions in a 1:1 ratio at room temperature. a. Optional ingredients (or choices or options): Add dyes (or pigments) or pigments (or colorants or pigments). 2. Using a hand blender (or hand mixer), dilute this solution with water in a 1:1 ratio at room temperature. 3. Add 0.5g of soap to this diluted solution (100ml). 4. Mix using a hand blender (or hand mixer). 5. Pour the solution into any type of three-dimensional container (or 3D container) / mold (or mold) to the desired thickness. a. Note: The container (or vessel) should be able to withstand heating up to at least 50°C. 6. Bake / dry at 50°C overnight, or until the material solidifies. 7. Carefully remove the foamy object (or foamy substance) from the container / mold by hand.

[0085] (result) A 3D object (or 3D object) of foam (or bubble or foamy substance or foamy material) is flexible (or pliable), soft (or pliable or flexible), and provides cushioning (or shock absorption) due to gas bubbles (or air bubbles) embedded within the sheet. Such materials may be white (or white / beige), or they may be colored in various colors. Such objects can be made into various shapes (or forms or shapes) and sizes (or dimensions or sizes) depending on the container (or vessel) / mold (or mold). In a 3D object, the size (or dimensions or size) and / or frequency of air bubbles can be changed.

Claims

1. A bio-based encapsulated gas material characterized by being formed from one or more cellulose-based raw materials, optionally containing one or more additives, having a three-dimensional structural form, wherein gas is encapsulated between the surfaces of the structure in order to form a gas-filled cavity in the encapsulated gas material.

2. The cellulose-based raw material is selected from nanofibrillated cellulose (NFC), microfibrillated cellulose (MFC), cellulose nanocrystal (CNC), microcrystalline cellulose (MCC), and cellulose nanofiber (CNF), and cellulose derivatives, wherein the cellulose derivative includes carboxymethyl cellulose (CMC), methyl cellulose (MC), hydroxypropyl cellulose (HPC), and sodium carboxymethyl cellulose (NaCMC), and the cellulose-based raw material preferably includes a combination of two or more of these, and more preferably has a total concentration of 30 to 1000 g / l, the encapsulated gas material according to claim 1.

3. The aforementioned additive may be a chemical that maintains bubbles and foam (for example, glycerol C ３ H ８ O ３ The encapsulated gas material according to claim 1, comprising sorbitol and / or a rheological modifier, preferably in a concentration of less than 100 g / l.

4. The gas sealed in the aforementioned material is air, nitrogen (N ２ ), oxygen (O ２ ), carbon dioxide (CO ２ ), nitrous oxide (N ２ The sealing gas material according to any one of claims 1 to 3, which is 0) or any mixture thereof, preferably air.

5. A method for producing a sealed gas material according to any one of claims 1 to 4, A step of mixing one or more cellulose-based raw materials with one or more additives as needed to form an aqueous solution or aqueous dispersion. A step of forming the aqueous solution or aqueous dispersion into a structure having one or more layers, A step of introducing gas into the structure in order to seal gas into the material, The process of drying the generated sealed gas material. A method characterized by the following.

6. The method according to claim 5, wherein one or more solutions or dispersions of two or more cellulose-based raw materials are prepared, preferably the first raw material being carboxymethylcellulose (CMC) in an aqueous solution, and the second raw material being nanofibril cellulose (NFC) mixed with glycerol in an aqueous solution.

7. The method according to claim 6, wherein two solutions are mixed in a ratio of 9:1 to 1:9, preferably 7:3 to 3:7, and most preferably 1:

1.

8. The method according to any one of claims 5 to 7, wherein the viscosity of the solution in the formed structure is adjusted by changing the amount and pressure of the gas, the concentration of the raw materials, the surface tension and the drying temperature, as necessary after partial solidification, in order to retain gaseous bubbles before the final drying step.

9. The method according to any one of claims 5 to 8, wherein the structure is prepared as a sheet by spraying the prepared solution or dispersion onto an arbitrary surface, for example by pouring it into a container, or the structure is prepared by forming it into a 3D structure, for example by molding.

10. The material is sealed with gas by mixing to form a foam, by injection, by foam flotation, by headbox air injection, by slot die curtain coating or roll coating, or by using a flotation device, or by a chemical reaction or by carbon dioxide (CO2). ２ The method according to any one of claims 5 to 9, wherein gas is generated in the material by forming a )

11. The method according to any one of claims 5 to 9, wherein gas is sealed into the material by trapping the gas between two or more films of a solution or dispersion of the raw material.

12. The method according to any one of claims 5 to 11, wherein the formed sealed gas material is dried, for example by air drying or by heating, preferably at room temperature or at a raised temperature (<350°C, more preferably <100°C, 40 to 80°C, e.g., 50°C), typically for a period of 5 seconds to 48 hours (e.g., 20 minutes to 24 hours).

13. The method according to any one of claims 5 to 12, wherein the gas filling step and the drying step are repeated two to eight times until gas bubbles of the desired size and distribution are filled into the material.

14. Use of a sealed gas material as described in any one of claims 1 to 4, or use of a sealed gas material manufactured as described in any one of claims 5 to 13, for use to protect an article from external pressure or impact or damage caused by the movement and collision of the article, or for use as an insulating material, or as a coating, or as a filler.

15. The use according to claim 14 in the manufacturing and warehousing, e-commerce, logistics and transportation, construction, or fashion and textile industries.

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