Browse Prior Art Database

Decurling Magnetic Coated Tape

IP.com Disclosure Number: IPCOM000092962D
Original Publication Date: 1967-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Cleesattel, JE: AUTHOR

Abstract

A polyethylene terephthalate film, when coated with a magnetic layer, has a tendency to curl.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Decurling Magnetic Coated Tape

A polyethylene terephthalate film, when coated with a magnetic layer, has a tendency to curl.

The coated film can be decurled by immersing it in a solution of SHELL* Sol 360 at a temperature of about 200 degrees F. The film is left in the solution for a time sufficient to cause a thorough wetting of the film. Then it is removed and dried by an air jet.

SHELL Sol 360 is an extremely narrow-range, low-end point, mineral spirits fraction from which the aromatic hydrocarbons are removed--A.P.I. gravity, 52.3; flash point, Tag. closed cup, 104 degrees F.; initial b.p. 310 degrees F; and end point, 355 degrees F. *Trademark of Shell Oil Company.

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