Tire Cord Department
This has been a core department since the company’s foundation.
Tire-cord fabric refers to a type of cloth which has a very thick vertical thread (warp) and a fine and rough horizontal thread (weft) and has an appearance similar to the bamboo screens which are used as sun shades.
It has been a little over 100 years since the pneumatic tire was invented. In all periods, tire-cord fabric has been used in the core/framework of the tire. From the earliest steam-powered cars, through to the combustion engine, hybrid cars, all the way up to electric cars, tires have continued to be used, and those tires have been supported by tire-cord fabric.
Our company’s strength would have to be the extremely wide yarn range of the warp.
Our standard production includes products which go from the thinnest with a 7000-thread warp of 66 nylon, 210 denier, up to thick products with a 680-thread warp of polyester, 12000 denier.
We can even produce custom made items with warps of 25,000-30,000 denier.
We are also the only company in Japan that produces tire-cord fabric from spun yarn. This is also used in ships’ engines, and supports the Japanese shipbuilding industry in areas such as naval escort vessels etc.
Filament Twisted Yarn Department (hose reinforcement textiles etc.)
Since the beginning of business in the domestically-produced synthetic fiber “vinylon filament” in 1960, we have developed the use of blade strengthening in filaments in the field of hoses which was previously based around reinforcing rolls of fabric.
Additionally, aramid fabric, which is used as a substitute for bead wire, is put to an expanding set of uses other than hose-reinforcement, such as use in spring belts etc.
Spun and Twisted Yarn Department
We provide twisted yarn of such high performance and precision that in addition to being used in important safety-related parts in vehicles such as fuel hoses and turbo hoses, it is put to uses you would think of for spun yarn, such as its use as a foundation cloth in photogravure printing etc.
Air Suspension Department
The chassis of most tour buses and large trucks etc. are supported by air suspension.
Also, it is used in the suspension of the flagship representative of the Japanese automotive industry, the LEXUS-LS. Newer-model train carriages, including the shinkansen, also utilize air suspension for its rideability and stability at high speed.
Through the use of our own equipment, we supply almost 100% of all twisted yarn cord for use in domestically-produced air suspension.
Lifestyle Products Department
In co-development with a manufacturer of compound materials, our twisted yarn is used in many different lifestyle products such as in the development of even more highly-adhesive dental floss, and in the manufacture of bristles for the “motor head brush” in cyclone vacuum cleaners.
Health Food Ingredients Department
Stress is around every corner in modern society, and so it’s no surprise that interest in health is increasing, and many types of supplements are making their way onto the market.
At KOA, we are engaged in the factory cultivation of a succulent plant known as the Ice Plant which uses biosynthesis to produce pinitol, which is said to work as an osmotic pressure adjusting substance to increase metabolization of glucose.