Abstract: A waste volume reduction processing method includes a volume reduction step of reducing volume of waste in a volume reduction furnace in which temperature is raised in stages multiple times, the waste being a mixture of organic waste containing plastic and inorganic waste containing metal material, the volume reduction step including a first volume reduction step of storing and heating the waste in the volume reduction furnace in which temperature is raised up to around 200° C. to be kept, the volume reduction furnace being sealed in an oxygen-free state or in a low-oxygen state, the organic waste being reduced in volume to 20% to 30% of original volume.

Abstract: The method and system for recycling waste including plastic waste of the present invention includes a carbonizing step in which waste including disused plastic products such as PET bottles is carbonized in a carbonization furnace in which the temperature is raised in stages multiple times.

Abstract: A carbon formed body covers an outlet of a dryer. The carbon formed body is formed into a disc made from isotropic high-density graphite, and elongated holes are provided along a spiral line so as to penetrate through the disc. Hence, the opening areas of the carbon formed body can be extended while preventing reduction in the strength of the carbon formed body. Therefore, when the dryer that includes the carbon formed body attached to the outlet is in use, a smaller pressure loss is caused at the carbon formed body and the heat accumulation phenomenon is prevented. Furthermore, breakage of carbon formed bodies is inhibited at the time of manufacturing.

Abstract: A hair iron 1 includes a first arm 21 and a second arm 22 to give a treatment by holding hair between the first arm 21 and the second arm 22. The hair iron 1 includes a first contact part 41 that comes into contact with hair during the treatment, a second contact part 42, and heaters 71 and 72 that heat the first contact part 41 and the second contact part 42, respectively. The first contact part 41 is disposed inside an opening 21a, which is provided in a portion of the first arm 21, the portion facing the second arm 22, while the second contact part 42 is disposed inside an opening 22a, which is provided in a portion of the second arm 22, the portion facing the first arm 21. The first contact part 41 and the second contact part 42 include a substrate 411 and a substrate 421, respectively, each of which is made from isotropic high-density graphite.

Abstract: A carbon formed body covers an outlet of a dryer. The carbon formed body is formed into a disc made from isotropic high-density graphite, and elongated holes are provided along a spiral line so as to penetrate through the disc. Hence, the opening areas of the carbon formed body can be extended while preventing reduction in the strength of the carbon formed body. Therefore, when the dryer that includes the carbon formed body attached to the outlet is in use, a smaller pressure loss is caused at the carbon formed body and the heat accumulation phenomenon is prevented. Furthermore, breakage of carbon formed bodies is inhibited at the time of manufacturing.