Magnetic tape manufacturing

MEK is also used iu solvent-based adhesives, iu printing ink formulations, as a solvent iu magnetic tape manufacture, and is the most common solvent used iu dewaxing lubricating oils. Of all these appHcations only an increasing consumption of magnetic tapes is likely to grow ia methyl ethyl ketone use. 

Figure 3.25 Schematic representation of a magnetic-tape manufacturing process.

Macromolecular Materials and Engineering 286, No.ll, 30thNov.2001, p.695-704 UV CURABILITY AND MECHANICAL PROPERTIES OF NOVEL BINDER SYSTEMS DERIVED FROM POLY(ETHYLENE TEREPHTHALATE)(PET) WASTE FOR SOLVENTLESS MAGNETIC TAPE MANUFACTURING. I. ACRYLATED OLIGOESTERS Farahat M S Nikles D E Alabama,University... 

Solvent applications account for almost 95 percent of all MEK consumption the rest goes to chemical uses such as MEK peroxide and methyl ethyl ketoxime. The solvent applications include surface coatings, adhesives, lube oil dewaxing, magnetic tape manufacture, and printing inks. Production of MEK in 1999 totaled almost 690 million lb. 

National Emission Standards for Magnetic Tape Manufacturing Operations National Emission Standards for Aerospace Manufacturing and Rework Facilities National Emission Standards for Hazardous Air Pollutants From Oil and Natural Gas Production Facilities... 

Magnetic tape manufacture Promotes uniform coating thickness when used in the binder system or in prime coats on polyester or celtulose acetate. Rapid drying. Increases production rates. 

Farahat M S and Nikles D E (2001) On the UV curability and mechanical properties of novel binder systems derived from polyethylene terephthalate waste for solventless magnetic tape manufacturing. 1. Acrylated oligoesters, Macromol Mater Eng 286 695-704. 

Uses. Approximately 70% of the U.S. production is used to make poly(tetramethylene ether glycol) [25190-06-1] (PTMEG), also known as poly-THE, which is used in the production of urethane elastomers, polyurethane fibers (ether-based spandex), and copolyester—ether elastomers. PTMEG is also the fastest growing use (see PoLYETPiERS, TETRAHYDROFURAn). The remaining production is used as a solvent for the manufacture of poly(vinyl chloride) cements and coating, precision magnetic tape, a reaction solvent in the production of pharmaceuticals, and other miscellaneous uses. 

Parylene is used in the manufacture of high quality miniature stepping motors, such as those used in wristwatches, and as a coating for the ferrite cores of pulse transformers, magnetic tape-recording heads, and miniature inductors. 

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