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Browse Prior Art Database

Unitary Correction Tape

IP.com Disclosure Number: IPCOM000074405D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Bailey, WD: AUTHOR [+5]

Abstract

A combined inking and correction ribbon 10 is assembled from separate ribbon components 11 and 12. Correction ribbon component 12 is an appropriately coated MYLAR* strip 13. The inking ribbon component 11 is a nylon matrix type ribbon prepared in accordance with U. S. Patent 3,413,184 but initially its MYLAR casting base 14 is not peeled as described in that patent. The MYLAR strip 13 of the correction ribbon 12 is back coated with a polyamide solution 15, for example Emerz 1533 in toluene 20%. Standard reverse roll coating and drying procedures are used to deposit a thin dry coating. The MYLAR is then slit to width. Nylon matrix ribbon material 11 unpeeled on a MYLAR substrate is prepared in accordance with U.S. Patent 3,413,184, example J and is slit to width.

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Unitary Correction Tape

A combined inking and correction ribbon 10 is assembled from separate ribbon components 11 and 12. Correction ribbon component 12 is an appropriately coated MYLAR* strip 13. The inking ribbon component 11 is a nylon matrix type ribbon prepared in accordance with U. S. Patent 3,413,184 but initially its MYLAR casting base 14 is not peeled as described in that patent. The MYLAR strip 13 of the correction ribbon 12 is back coated with a polyamide solution 15, for example Emerz 1533 in toluene 20%. Standard reverse roll coating and drying procedures are used to deposit a thin dry coating. The MYLAR is then slit to width. Nylon matrix ribbon material 11 unpeeled on a MYLAR substrate is prepared in accordance with U.S. Patent 3,413,184, example J and is slit to width. Correction ribbon 12 and nylon matrix ribbon 11 are aligned side-by-side, back side up and placed on a wetted Glassine substrate
16. This assembly is back coated with an alcohol soluble nylon backing solution 17 to form a unitary structure. Glassine substrate 16 and MYLAR substrate 14 are peeled from the assembly leaving the unitary ribbon construction ready for use. * Trademark of E. I. du Pont de Nemours & Company.

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