DAINIHON JOCHUGIKU CO.,LTD. (KINCHO) was founded in 1885 and is the company that produced the world's first mosquito coil. Initially, the coils were thin and short, but they quickly burned out and were not effective when used as a single stick. This led to the development of the current spiral shape. Today I will show you the process of making mosquito coils. Let's take a look together. Product Mold. A mixture of active ingredients and plant-based powder, which are the materials. Passing through a sieve to obtain fine powder. Removing any small impurities. Adding dye and water to the mixture powder and kneading it. Punching it into the spiral shape. (This manufacturing process appears to be for producing large-sized products.) The leftover scraps are recycled and reused in the process to minimize waste. Natural drying to reduce moisture content. Hot air drying and packaging the finished mosquito coils. Packaging. Quality inspection. Founder Eiichiro Ueyama's childhood home. Archives. Mosquito coils in stick form before they become spiral-shaped. Products and packages from the time when they were manually made in the past. Founded in 1956, Takunan Iron & Steel Co., Ltd. is the only rebar manufacturing company in Okinawa. Today I will show you the process of making rebar. Let's take a look together. The recycling of scrap, the material of rebar, is carried out by Takunan Sangyo Corporation, a subsidiary. The weight of the scrap to be recycled is measured. Transportation of scrap. Cutting. The scrap is cut with a press cutting machine. The cut scrap is transferred to Takunan Steel Plant. The iron scrap is fed into the furnace. The iron scrap is fed while measuring the weight. The iron scrap is put into an electric furnace. The iron scrap is melted for 45 minutes. Impurities (slag) are removed. The molten steel is transported. Alloy iron is added to make strong rebar. The molten steel is poured into a mold to make a billet. Rolling process. The cooled billet is heated. The billet is stretched by several rolling machines. It is shaped into a rebar through rolls. The rebar is tied according to the predetermined number with wire. Kuretake Co., Ltd. is a long-established company that has been in business for over 120 years. Starting from ink stick making, they manufacture and sell calligraphy supplies and pens. Ink stick is a solid ink made from soot and used for writing, which has been used as a type of stationery in Asia since ancient times. Today I will show you the process by which ink stick is made. Let's take a look together. Making the mold. Dissolving the glue. The glue, which is the material for making ink stick, is melted in a double boiler to make a glue solution. Mixing and kneading the soot and glue solution together. Kneading with feet. Kneading with hands. Putting the ink stick in the mold and pressing it. When taking it out of the mold, remove the excess paste. Drying in ashes. Since the ink stick will crack if it is rapidly dried, it is gradually dried over 10-30 days by removing the moisture from the humid ashes. To naturally dry the ink sticks, it is woven with rice straw. Natural drying. Polishing. Finishing. Coloring. Packaging. Test. Midori Safety Co., Ltd. was founded in 1952 and has been manufacturing and selling safety shoes, helmets, and other safety equipment. Today I will show you the process of making safety shoes. Let's take a look together. This is the safety shoes manufacturing factory. Making rubber for shoe soles. Synthetic rubber used for the sole material. Rubber kneading process. Preparation of vulcanizing agent. Mixing the vulcanizing agent uniformly into the rubber. Preparation of vulcanizing agent. Cooling with water. Rubber cutting process. The upper is made by sewing together the parts of the upper leather. The upper is softened with steam. 발가락 부분에 선심을 넣고 성형합니다. The toe is shaped by inserting a hard toe stiffener into the toe of the upper. Next, the heel and sides are shaped. The leather surface is roughed up. Application of adhesive processing. Drying of adhesive. Attach the heel stiffener. Cut rubber material. Heat the rubber material. Join the rubber sole and leather upper with pressure. Place the heated sole on the base mold, then lower the upper onto it. Close the side mold and shape the sole with heat and pressure. Remove the molded sole from the last mold. Apply the manufacturing lot number. Attach the insole. Finish the product. Remove burrs. Spray on the finishing agent. Dry the product. Check if the toe cap is inserted in the toe portion. Pack the product in a box. Place the boxes in a cardboard box. Next, I will introduce the safety performance tests. Toe impact resistance test. Fill the product's toe portion with clay. Drop a 20 kg steel striker from a specified height. Remove the clay and check if the toe cap gap meets the required specifications. Compression test. After filling with clay, gradually apply compression load and measure the gap of the test piece. Test. Tomoi Corporation was founded in 1913 and has been manufacturing and selling natural shell buttons. Today, I will show you the process of making buttons from natural shells. Let's take a look together. Note: that the product type may vary depending on the process. Thank you for your understanding. We make buttons from various types of shells such as Takase clam, black butterfly shell, and white butterfly shell. The shell is cut into circular button shapes. Polishing. The material is shaved to adjust the thickness. Making buttonholes. Classification. Surface processing. For small-scale production, the surface is manually processed one by one. Laser engraving. The buttons are put into a box with water and grinding sand to round the edges. Glaze treatment. A chemical is added to the buttons to give them a shine. The buttons are dehydrated using a dehydrator. Polishing. The buttons are put into a box with waxed rice and rotated for about an hour. Classification.
