Why are Japanese handmade eyeglasses so precious_ Compared with European and American glasses, Japanese handmade glasses

Why are Japanese handmade eyeglasses so precious? Compared with European and American glasses, Japanese handmade glasses are more simple and comfortable, with unique textures and styles, and their handmade finesse is also admirable, and is sought after by many celebrities.

(Recommended reading: Why are there so many designer brands of Japanese glasses鈻?Depp on the left, Yue Wenle on the right, and the real so-called handmade frame in Japan refers to the frame made of celluloid, also commonly known as "resin".

Handmade frame material: celluloid Celluloid Nitrate Celluloid Nitrate is the name of a synthetic resin, which is the oldest thermoplastic resin in history synthesized from nitrocellulose and camphor and other raw materials, and the representative product is a table tennis ball. Japan is the only country in the world that continues to use celluloid material to make glasses, because of its special texture and luster and the persistence of some Japanese masters, the frame of this material is relatively brought to the extreme.

Similarly, because celluloid is bulky, low plasticity, difficult to dye, and flammable for a long time to be materialized, it must be processed manually in the production process and cannot be produced in large quantities, so Japanese handmade glasses need to be slowly "boiled" by designers. Handmade frame design: It takes 10 hours from cutting to trimming! Frame polishing, upper ding fan (hinging), nose joint, impurity removal, fine grinding, shaping, tail trimming, to the factory...... All processes are made with the utmost care, and there can be no mistakes.

One of the most important and dangerous steps is to remove impurities, soak the celluloid frame in a warm acetone agent for a few seconds to remove impurities from the frame to increase its own transparency and shine, which is why the real celluloid frame has a faint pine fragrance. This step is prone to fire, and the production procedures are complicated, so the maximum monthly output of each celluloid glasses factory is only about 400 Can such a quantity not be precious? At present, there is only one factory in Japan that produces glasses and celluloid plates, and it will take at least 3~5 years to wait for at least 3~5 years after the plate is dyed, and it can not be delivered until some solvents in the plate are volatilized.

How to distinguish the handmade frame First, the resin frame is definitely brighter in terms of brightness, especially the black light transmittance is high, and you can feel the luster from the inside out. Second, the texture is different, and the resin frame has a high density, so it feels smooth and smooth to the touch. Ordinary sheets do not, and when the temples are closed and tapped, the sound is crisp.

Third, the new frame of resin must have a pine fragrance.