KR20230064402A - Method for manufacturing spectacle legs using coffee ground - Google Patents

Abstract

The present invention relates to a method for manufacturing glasses legs using coffee waste, by mixing coffee ground powder and medical silicone in an optimal ratio, and including eyeglass cores for elasticity and robustness, thereby providing a sense of comfort and stability while providing an eco-friendly design and It is possible to provide coffee ground powder temples with new artistry, aesthetics, and functionality (durability, elasticity, and robustness). In addition, the coffee ground glasses legs of the present invention emit a unique coffee scent due to the deodorizing effect and aroma effect of the coffee ground powder, and are effective in removing sweat odor and preventing allergies.

Description

Method for manufacturing spectacle legs using coffee ground}

The present invention relates to a method for manufacturing temples using coffee waste, and more particularly, to a method for manufacturing environmentally friendly and durable temples using coffee waste powder.

Coffee waste is a by-product left after making coffee, and about 15g of coffee beans are used to make a cup of Americano. Of these, 99.8% of the coffee beans are discarded as coffee waste. In 2020, coffee imports increased by 11% from the previous year to $737.8 million (approximately KRW 830 billion), and coffee imports (176,648 tons) also increased by 5%. In addition, the size of the Korean coffee shop (cafe) market in 2019 is about 5.4 trillion won, which is the third largest in the world after the United States and China. Accordingly, as of 2019, the coffee ground powder generated in Korea amounted to about 149,3038 tons.

Coffee ground powder contains 5 to 25% of oil, and its solid content can be recycled as an energy resource with a high calorific value of more than 6000 kcal per 1 kg. The situation is. Accordingly, the need for using coffee ground powder is increasing.

On the other hand, glasses are usually used for vision correction, but as aesthetic interest has recently increased, a lot of research has been conducted to develop glasses with excellent functionality with a unique and new design to make use of the wearer's personality. Accordingly, it is necessary to develop products with eco-friendly design, new artistry, aesthetics and functionality by upcycling coffee waste powder.

Korean Patent Publication No. 10-2015-0138752 (published on February 10, 2015) describes a synthetic resin temple and manufacturing method having an iron core. Republic of Korea Patent Registration No. 10-1631173 (registration date: 2016.06.10) discloses a method for manufacturing temples using cork, including a packaging step of wrapping with cork wallpaper, an adhesive step of adhering with an eco-friendly adhesive, a sewing step, and a coating step. is written about.

The present invention aims to manufacture glasses legs with an eco-friendly design and new artistry, aesthetics and functionality while reusing coffee waste powder, which is mostly incinerated or buried like general garbage.

The present invention comprises the steps (a) of mixing dried coffee ground powder and medical silicone; And a step (b) of placing the eyeglass cores between two molds, pouring the mixture of step (a), compressing, and then drying.

Meanwhile, in the production method of the present invention, the coffee ground powder is preferably dried at 80 to 100 ° C. for 1 to 2 hours.

The present invention mixes coffee ground powder and medical silicone in an optimal ratio and manufactures it including eyeglass cores for elasticity and robustness, thereby providing eco-friendly design with a sense of comfort and stability, new artistry, aesthetics, and functionality (durability, elasticity, and robustness). ) can provide excellent coffee waste temples. In addition, the coffee ground glasses legs of the present invention emit a unique coffee scent due to the deodorizing effect and aroma effect of the coffee ground powder, and are effective in removing sweat odor and preventing allergies.

1 is a photograph showing coffee ground powder.
Figure 2 is a photograph showing a thin and long circular glasses of metal material.
3 is a photograph showing two molds.
4 is a photograph showing the process of drying the temples of the present invention in a dryer.
5 is a photograph showing the finally completed coffee waste glasses leg of the present invention.

Coffee grounds are left over after eating coffee, and as much as 99.7% of them remain after making coffee. Accordingly, the present invention intends to develop products with eco-friendly designs, new artistry, aesthetics, and functionality by upcycling coffee waste powder.

The present invention comprises the steps (a) of mixing dried coffee ground powder and medical silicone; And a step (b) of placing the eyeglass cores between two molds, pouring the mixture of step (a), compressing, and then drying.

Meanwhile, in the production method of the present invention, the coffee ground powder is preferably dried at 80 to 100 ° C. for 1 to 2 hours. Through this, it is possible to prepare coffee ground powder dried in a state suitable for the manufacture of temples.

Meanwhile, in the manufacturing method of the present invention, the coffee ground powder and the medical silicone are preferably mixed in a ratio of 20 to 30:70 to 80, more preferably in a ratio of 30:70. At this time, medical silicone is added to enhance adhesion, and if other adhesive materials (rubber, urethane, latex, synthetic resin, etc.) are used, they cannot withstand high temperatures and may melt. Able to know. In addition, the adhesive strength can be further strengthened by mixing coffee ground powder and medical silicone in a ratio of the above range conditions, and when manufactured under the condition of increasing the ratio of coffee ground powder out of the above range, coffee ground glasses legs The problem is that it can be crushed.

On the other hand, in the manufacturing method of the present invention, it is preferable to manufacture the coffee waste temples by inserting eyeglass cores, through which the elasticity and robustness of the temples can be increased.

On the other hand, in the production method of the present invention, the drying of step (b) is preferably performed at 200 to 220 ° C. for 20 to 40 minutes. When drying at a low temperature or time less than the above range conditions, there is a problem that moisture remains and the viscosity is high, so that it can be sticky and durability is weak. The problem is that it can harden and crack. In this way, by drying and manufacturing within the above range conditions, the temples can be manufactured that are hard and have excellent durability.

In this way, the present invention mixes coffee ground powder and medical silicone in an optimal ratio and manufactures including eyeglass cores for elasticity and robustness, thereby providing a sense of comfort and stability, as well as eco-friendly design, new artistry, aesthetics, and functionality (durability, elasticity , robustness) can provide a coffee waste temple. In addition, the present invention can provide coffee ground glasses legs that emit a unique coffee scent due to the deodorizing effect and aroma effect of the coffee ground powder, and are effective in removing sweat odor and preventing allergies.

Hereinafter, the contents of the present invention will be described in more detail through the following examples and experimental examples. However, the scope of the present invention is not limited only to the following examples and experimental examples, and includes modifications of equivalent technical ideas.

[Examples 1 and 2: Preparation of temples using coffee ground powder]

In this example, temples were manufactured using coffee ground powder.

After drying the coffee ground powder by applying heat at 90 ° C. for 1 hour and 30 minutes, the dried coffee ground powder (FIG. 1) and medical silicone were mixed at a ratio of 20:80 (or 30:70). . Then, one of the two mold molds (FIG. 3) was placed below, the coffee powder and silicone mixture was filled in the mold, and a thin and long circular eyeglass core made of metal (FIG. 2) was placed thereon. Next, after filling the other mold with the coffee powder and silicone mixture, the two molds were covered with each other and compressed. Thereafter, it was dried in a dryer at a temperature of 200 ° C. for 30 minutes (FIG. 4) to complete the coffee ground powder temples (FIG. 5). The ratio of coffee ground powder to medical silicone was 20:80 in Example 1 and 30:70 in Example 2.

[Experimental Example 1: Comparison of the temples of the present invention and the temples with different mixing ratios of coffee ground powder and medical silicone]

In this experimental example, a comparative experiment was conducted on temples with different mixing ratios of coffee ground powder and medical silicone. It was prepared in the same way as in the above example, but the mixing ratio was different as shown in Table 1 below.

coffee ground powder medical silicone Example 1 20 80 Example 2 30 70 Comparative Example 1 40 60 Comparative Example 2 50 50 Comparative Example 3 60 40 Comparative Example 4 70 30

As a result of manufacturing the temples with the composition shown in Table 1, the temples of Examples 1 and 2 had a subtle effect of the coffee ground powder, and compared to the temples made of hard material, high rates in other comparative groups It was confirmed that the glasses legs crushed by the coffee ground powder added as were manufactured. Accordingly, it was found that the optimal mixing ratio was Example 1 (20:80) and Example 2 (30:70).

[Experimental Example 2: Comparison of temples of the present invention and temples with different adhesive materials mixed with coffee ground powder]

In this experimental example, a comparative experiment was conducted on temples with different adhesive materials mixed with coffee ground powder. It was prepared in the same way as in the above example, but the material was differently composed as shown in Table 2 below. The mixing ratio was set to the ratio of Examples 1 and 2 above.

coffee ground powder for medical use
silicon rubber urethane latex Example 1 20 80 - - - Example 2 30 70 - - - Comparative Example 5-1 20 - 80 - - Comparative Example 5-2 30 - 70 - - Comparative Example 6-1 20 - - 80 - Comparative Example 6-2 30 - - 70 - Comparative Example 7-1 20 - - - 80 Comparative Example 7-2 30 - - - 70

As a result of manufacturing the temples as shown in Table 2, the temples of Examples 1 and 2 had a mild effect of the coffee ground powder, and compared to the temples made of hard material, the other comparative groups did not withstand the heat. It was confirmed that the glasses temples were hardened in a melted state and changed in an irregular manner. Through this, it was confirmed that silicon is suitable as a material that can withstand high temperatures of 200 ° C or higher, which strengthens the strength in the process of manufacturing the temples.

[Experimental Example 3: Comparison of temples of the present invention and temples under different drying conditions]

In this experimental example, a comparative experiment was performed on the temples under different drying conditions. It was prepared in the same way as in Examples 1 and 2, but the drying conditions were different as shown in Table 3.

drying temperature
(℃) Drying time (minutes) Example 1-1
(Same as Example 1) 200 20 Example 1-2 210 30 Example 1-3 220 40 Example 2-1
(Same as Example 2) 200 20 Example 2-2 210 30 Example 2-3 220 40 Comparative Example 8-1
(20:80 mixing ratio) 60 30 Comparative Example 8-2
(30:70 mixing ratio) 60 30 Comparative Example 9-1
(20:80 mixing ratio) 80 30 Comparative Example 9-2
(30:70 mixing ratio) 80 30 Comparative Example 10-1
(20:80 mixing ratio) 240 30 Comparative Example 10-2
(30:70 mixing ratio) 240 30 Comparative Example 11-1
(20:80 mixing ratio) 280 30 Comparative Example 11-2
(30:70 mixing ratio) 280 30 Comparative Example 12-1
(20:80 mixing ratio) 210 60 Comparative Example 12-2
(30:70 mixing ratio) 210 60 Comparative Example 13-1
(20:80 mixing ratio) 210 80 Comparative Example 13-2
(30:70 mixing ratio 210 80

As a result of manufacturing the temples as shown in Table 3, the temples of Examples 1-1 to 1-3 and 2-1 to 2-3 have a subtle effect of coffee ground powder, while being hard and sufficiently It was confirmed that the dried and highly durable temples were manufactured. On the other hand, in the case of Comparative Examples 8-1, 8-2, 9-1, and 9-2 dried at a low temperature, it was confirmed that the moisture was not completely dried and the viscosity was high, making sticky and weak temples. In addition, in the case of Comparative Examples 10-1, 10-2, 11-1, and 11-2 dried at a high temperature of 240 ° C. or higher, it was confirmed that the silicone and cork were degenerated, hardened, cracked, and the temples with weak durability were manufactured. . In addition, in the case of Comparative Examples 12-1, 12-2, 13-1, and 13-2 in which the drying time was dried for 60 minutes or more, it was confirmed that the temples were also hardened and cracked, and the temples with low durability were manufactured.

Claims (2)

Mixing dried coffee ground powder with medical silicone (a); and
A method of manufacturing coffee ground glasses legs, characterized in that it comprises a; step (b) of placing the glasses between two molds, pouring the mixture of step (a), compressing, and drying.
According to claim 1,
The coffee ground powder,
Method for producing coffee waste glasses legs, characterized in that dried at 80 ~ 100 ℃ for 1 ~ 2 hours.

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