KR20230083255A - Method for manufacturing eco friendly dishes using coffee grounds - Google Patents

Abstract

A method for manufacturing an eco-friendly dish using coffee grounds according to the present invention comprises a coffee grounds collection step, a coffee grounds regrinding step, a coffee grounds washing step, a coffee grounds drying step, a coffee grounds mixing step, a coffee grounds forming step, and a coffee grounds processing step. The coffee grounds collection step includes a process of collecting coffee grounds from stores that sell coffee. The coffee grounds regrinding step may include a process of pulverizing particles of coffee grounds. The coffee grounds washing step may include a process of washing coffee grounds to remove impurities mixed therein. In the coffee grounds drying step, moisture-containing coffee grounds are dried by heating with hot air at about 40 ℃ to remove moisture, thereby producing coffee grounds in the form of dry powder. Accordingly, costs are reduced by using discarded coffee grounds as raw material.

Description

How to make eco-friendly tableware using coffee grounds {METHOD FOR MANUFACTURING ECO FRIENDLY DISHES USING COFFEE GROUNDS}

The present invention relates to a system and method for manufacturing tableware used for manufacturing tableware, and more particularly, to a system and method for manufacturing tableware using coffee grounds, which are effective in significantly reducing the discharge of garbage by recycling coffee grounds.

Coffee is a popular beverage that can be enjoyed by people of all ages and genders, and the coffee-related market is explosively increasing every year due to the emergence of various coffee makers and the explosive increase in coffee shops.

Korea's coffee consumption shows a huge amount of consumption of 333 cups per person per year, and in relation to this, a significant amount of coffee grounds is also discharged. Some coffee grounds are used for purposes such as deodorant, but this is only for personal consumption, and the proportion is insignificant. In Korea, 150,000 tons of coffee grounds are thrown away as waste annually, incurring a treatment cost of about 3.5 billion won.

Until now, most of the coffee grounds waste disposal in Korea has relied on landfill or incineration, and it is unknown how the landfill treatment will affect soil and other organisms due to caffeine, tannin and other components of coffee. There is no, and incineration treatment method can cause air pollution by generating combustion gas.

As the coffee-related market increases as described above, the demand for coffee beans is greatly increased, and the coffee grounds remaining after brewing the coffee beans are also greatly increasing. Conventionally, coffee grounds left after brewing coffee beans have a coffee aroma, so they are used only as an air freshener or deodorant, and most of the coffee grounds are disposed of as garbage.

Therefore, there is an urgent need for a method that can reduce waste emission and use industrially useful and effective methods by recycling coffee grounds, whose production is continuously increasing.

The present invention is to solve the above conventional problems, coffee grounds that minimize cost by using discarded coffee grounds as raw materials and improve the image of companies using the products by supplying eco-friendly products made as a result of the process. It is an object of the present invention to provide an eco-friendly tableware manufacturing system and method using.

An object of the present invention is to provide a system and method for manufacturing eco-friendly tableware using coffee grounds, which manufactures tableware using coffee grounds as a raw material, and thus manufactures eco-friendly tableware with less risk of safety accident even if a user breaks the tableware while using it.

An object of the present invention is to provide a system and method for manufacturing eco-friendly tableware using coffee grounds, which is characterized in that tableware is manufactured by mixing coffee grounds and natural materials, so that even if a user discards the product after use, it is biodegraded in nature without environmental pollution. to be

A tableware manufacturing system and method using coffee grounds having an effect of significantly reducing the emission of waste by recycling coffee grounds.

Using the eco-friendly tableware manufacturing system and method using coffee grounds of the present invention, cost reduction is minimized by using discarded coffee grounds as a raw material, and the image of companies using the products is improved by supplying eco-friendly products made as a result of the process. can do.

If the system and method for manufacturing eco-friendly tableware using coffee grounds of the present invention are used, the risk of safety accidents is reduced even if a user breaks the tableware while using it because the tableware is made using coffee grounds as a raw material.

If the system and method for manufacturing eco-friendly tableware using coffee grounds of the present invention are used, the tableware is manufactured by combining coffee grounds and natural materials, so that the tableware is biodegraded in nature without environmental pollution even if the user discards the product after use.

1 to 6 contain an explanation of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, proportions and dimensions of components may be exaggerated for effective description of technical content.

The term "includes" is intended to indicate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but one or more other features, numbers, steps, operations, or configurations. It should be understood that it does not preclude the possibility of the presence or addition of elements, parts or combinations thereof.

Referring to Figures 1 to 6 can know about the present invention.

When using the system for manufacturing eco-friendly tableware using coffee grounds according to an embodiment of the present invention, cost costs can be minimized because discarded waste (coffee grounds) is used as a raw material. In addition, if an eco-friendly product made through the eco-friendly tableware manufacturing system using the coffee grounds of the present invention is used, the image of the company using it can be improved. also

An eco-friendly tableware manufacturing method using coffee grounds according to an embodiment of the present invention includes a coffee grounds collection step, a coffee grounds re-grinding step, a coffee grounds washing step, a coffee grounds drying step, a coffee grounds mixing step, a coffee grounds molding step, and a coffee grounds washing step. It may include a dross processing step.

In the coffee grounds collection step, a process of collecting coffee grounds from a coffee shop or the like may be included.

The step of regrinding the coffee grounds may include a process of grinding the coffee grounds particles. In one embodiment of the present invention, coffee grounds may be ground to a size of 0.01 mm to 1 mm.

In the coffee ground washing step, a process of washing the coffee grounds to remove impurities mixed in the coffee grounds may be performed.

In the coffee grounds drying step, coffee grounds containing water are heated with hot air at about 40° C. and dried to remove water to form dried coffee grounds in a powdery state. In the coffee grounds drying step, coffee grounds having an uneven moisture content may be put in a dryer and dried to adjust the moisture content to 20% or less. If molding is performed in a state where the moisture content is higher than 20%, it is difficult to dry later, and if drying is not sufficient, problems such as mold may occur.

In one embodiment of the present invention, the coffee grounds blending step may include a step of dissolving solid paraffin wax in a beaker and heating it. The paraffin wax is heated and melted to form a paraffin solution, and the paraffin solution can serve to form a container when mixed with coffee ground powder and hardened. Thereafter, coffee ground powder or a mixture containing coffee ground powder may be added to the paraffin solution formed by dissolution, and mixed by stirring with a stirrer. The mixing ratio of the coffee grounds powder and the paraffin solution may be preferably 50% by volume of the paraffin solution based on 50% by volume of the coffee grounds powder. When the coffee grounds powder is 50% by volume and the paraffin solution is mixed at 50% by volume, a highly aesthetic layered structure can be formed on the outer surface of the manufactured container.

In another embodiment of the present invention, 40% by volume of coffee grounds powder and 60% by volume of paraffin solution may be mixed. However, in this case, although the outer surface is smooth, the lateral structure is not formed, and aesthetics may be deteriorated.

In another embodiment of the present invention, in the coffee ground mixing step, coffee grounds whose moisture content is adjusted are put into a mixer, and a liquid binder is added to uniformly mix the coffee grounds and the binder to form a coffee ground dough. Various types of the liquid binder may be used depending on the purpose of the molded product. The liquid binder is preferably selected from paper leather, wood glue, epoxy resin, starch glue, and urethane resin, and may be a natural material when used as an interior material. By mixing other materials together with the coffee grounds, physical properties of the coffee grounds can be supplemented. Other materials that may be blended may be cork and textiles. Cork is the part between the outer skin and the inner skin of the naked part of cork. It is light, has low thermal conductivity, and has excellent elasticity. Coffee grounds are lightweight and porous, and are excellent in moisture absorption and deodorization, but have the disadvantage of being vulnerable due to their low elasticity. can be obtained. In particular, since cork has excellent antibacterial properties, it is possible to suppress the propagation of microorganisms such as mold in coffee grounds, and when a molded product is manufactured by mixing it, it is possible to manufacture a more hygienic interior product. It is also possible to add 5 to 100% of fiber to the amount of coffee grounds used alone or together with the cork. Preferably, synthetic fibers such as polyester in the form of short fibers are added, or recycled fibers are pulverized and added in view of recycling of raw materials. It has the advantage of significantly improving mechanical properties such as tensile strength by adding a small amount, but also has the advantage of being able to preserve the characteristics of recycled coffee grounds such as light weight, sound absorption, deodorization, aromaticity, and hygroscopicity. In addition, when fibrous materials dyed in various colors are added, various decorative changes can be given to monotonous coffee ground molded articles, which is preferable.

In one embodiment of the present invention, the step of forming the coffee grounds may include a process of putting the mixture in a mold and compressing it. While the mixture of coffee grounds and paraffin solution is maintained at a temperature of 80 to 90 ° C and the temperature of the mold is maintained at 20 to 25 ° C, the mixture of coffee grounds and paraffin solution is poured into a mold at a rate of 30 to 40 ml per second. can be injected. In this step, the mixture of coffee grounds and paraffin solution is maintained at a predetermined temperature and the temperature of the mold is maintained at a predetermined temperature, and the mixed liquid is injected into the mold at a predetermined speed to inject the mixed liquid into the mold. This is to be able to form a layered structure while being rapidly cured first. At the temperature of the mixed solution, the temperature of the mold, and the injection rate of the mixed solution into the mold, a pattern of a layered structure is naturally formed on the outer surface of the container, so that the aesthetics of the container can be remarkably improved. If it is higher or lower than the range of the specific temperature and speed, the aesthetics of the container may be deteriorated because the pattern of the layer structure is not properly formed on the outer surface of the container.

In another embodiment of the present invention, in the coffee grounds forming step, the coffee grounds dough put into the mold may be molded into a molded product by pressing it with a hot plate. The temperature and pressure must be sufficient to harden the liquid binder and to form a lump by agglomeration of the coffee grounds to form a solid molded product. Preferred temperature and pressure are adjusted according to the type and mixing ratio of the liquid binder and the purpose of the molded article.

In the coffee grounds processing step, the mold may be separated after the liquid mixture injected into the mold is naturally cooled and hardened. It may be preferable to transfer the impact force to the inside of the mold by hitting the outer surface of the mold containing the hardened mixed core at a rate of 10 times per second as a whole. This is to finely hit the outer surface of the mold at a high speed so that the mixed solution injected into the mold is vibrated while curing so that the pattern of the layer structure can be formed in a large amount more smoothly and more finely on the outer surface of the container. it is for

Various embodiments of the present invention will be described.

In Example 1, coffee grounds powder whose moisture content is adjusted to 15-20% is put in a mixer, and commercially available paper porridge (trade name: Pinocchio paper porridge) used in clay crafts is mixed with water to make paper porridge in the form of a liquid binder, By putting this into a mixer and uniformly mixing the coffee grounds and the paper porridge, a moldable coffee grounds dough was prepared. In addition, the mixed coffee ground dough was put into a rectangular parallelepiped mold and heated and pressed with a hot plate heated to 95° C. to mold a brick-shaped molded article. The compression molded product was detached from the mold and additionally dried using hot air, thereby completing a brick molded product using recycled coffee grounds as shown in FIG. 2 . The brick molded product made by recycling the finished skin scraps was very light and exhibited porosity like a sponge, and was particularly satisfactory in terms of lightness, so it was expected that it could be used as bricks for interior decoration.

In Example 2, a molded product in the form of a brick for interior decoration was manufactured through the same process as in Example 1, but coffee grounds powder and cork powder whose moisture content was adjusted were well mixed in a volume ratio of 5:1, and then a liquid binder was added. was added to prepare a molded article.

In Example 3, a molded product in the form of a brick for interior decoration was manufactured through the same process as in Example 1, but after mixing well the coffee grounds powder and polyester fiber with the moisture content adjusted at a ratio of 10:1 by volume, the liquid binder was added to prepare a molded article.

In Example 4, a molded article was manufactured using coffee grounds whose moisture content was adjusted in the same manner as in Example 1, but a urethane resin was used as a liquid binder. The urethane resin binder used is a urethane waterproof coat mainly used for waterproofing materials and flooring materials, and is composed of polyurethane as a main component.

The molded article prepared in this example exhibited more robustness and excellent water resistance compared to the molded article of Example 1 using paper leather.

Although described with reference to the examples, those skilled in the art can understand that the present invention can be variously modified and changed without departing from the spirit and scope of the present invention described in the claims below. There will be. In addition, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, and all technical ideas within the scope of the following claims and their equivalents should be construed as being included in the scope of the present invention. .

Claims (1)

A coffee grounds collection step in which coffee grounds are collected;
A coffee ground re-grinding step in which the coffee grounds are ground;
a coffee ground washing step in which the coffee grounds are washed and impurities mixed in the coffee grounds are removed;
A coffee grounds drying step of drying the coffee grounds with hot air;
A coffee ground blending step in which a mixture in which paraffin wax is added to the dried coffee grounds is heated; and
A method for manufacturing eco-friendly tableware using coffee grounds comprising a coffee grounds molding step in which the mixture is compressed and molded to form a molded product.

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