Browse Prior Art Database

Cleaning Fluid

IP.com Disclosure Number: IPCOM000073372D
Original Publication Date: 1970-Dec-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Wheelock, CE: AUTHOR

Abstract

In normal usage, drives for magnetic tapes build up deposits of both ordinary dirt and tape debris. These deposits can cause the drive equipment to operate improperly and can also serve to damage magnetic tape by a plowing action.

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Cleaning Fluid

In normal usage, drives for magnetic tapes build up deposits of both ordinary dirt and tape debris. These deposits can cause the drive equipment to operate improperly and can also serve to damage magnetic tape by a plowing action.

Cleaning fluid for such systems must not only be effective to dissolve and remove dirt and debris, but it must also be compatible with the system. For example, for use with a tape transport system, such a cleaning fluid must evaporate quickly to minimize down time for the machine, it must leave no residue upon evaporation, and it must be inert to both the machine and the media. In the course of its use, such a fluid can be expected to come into contact with various metal machine parts, Polymeric brake and drive portions, magnetic heads, and magnetic media composed of a polymeric substrate and magnetic particles in a polymeric binder. Finally, since the fluid will normally be utilized in a closed indoor situation, it must be nonflammable and nontoxic.

An example of such a cleaning solvent is a mixture of about 10%, by volume, 1,1,2-trichloro, 1,2,2-trifluoroethane; 40% 1,1, 1-trichloroethane (methyl chloroform); 10%, by volume, mineral spirits (Stoddard Solvent); and 40%, by volume, naptha. The 1,1,1-trichloroethane should be stabilized against reaction with both the mineral spirit portion of the cleaning fluid and light metals, such as aluminum. This formulation has little, if any, moisture content, no free halogen or ion...