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HIGH TRIBOELECTRIC CHARGE AND HIGH CONDUCTIVITY WITH ZINC STEARATE COATED CARRIERS

IP.com Disclosure Number: IPCOM000027881D
Original Publication Date: 2001-Jun-30
Included in the Prior Art Database: 2004-Apr-09
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is the use of zinc stearate for powder coating of toner carriers in order to obtain high triboelectric charge and high conductivity carrier for use in electrophotographic printing machines. Data given in Tables 1-3 show reasonably high triboelectric charge with such a coating.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

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HIGH TRIBOELECTRIC CHARGE AND Proposed Classification HIGH CONDUCTIVITY WITH ZINC
STEARATE COATED CARRIERS
Deepak R. Maniar

U. S. C1. 399/027 Int. C1. G03g 15/08

TABLE #1:- ZIN STERRATE WITH OTHER COATING SUCH AS PMMA ON THE CORE

No. Carrier Id # wt.% wt. YO Total Tribo* Conductivity VB (breakdown vohage)

          Zn St. PMMA wt. O/o pVgm l/Ohm-Cm. Volts 1 F3C-269 0.20 1.00 1.20 54.5 556E-8 48 2 FX-153 0.00 1.00 1.00 40.6 6.71E-11 110 Cyan Toner # TB15135-3

TABLE #2 :- ZINSTERRATE ALONE ON THE CORE

No. Carrier Id # wt. Yo wt. % Total Tribo* Conductivity VB (breakdown vohage)

          ZnSt. PMMA wt.% pVgm l/Ohm-Cm. volts 1 FX-208 0.05 0.00 0.05 50.1 WE-8 52 2 FX-209 0.00 1.00 1.00 39.1 3.81E-11 106 Cyan Toner # TB15135-3

TABLE#3 :- ZINSTERRAE WITH XP-4521 COATING ON THE CORE

No. Carrier Id # wt. % wt. % Total 'liibo* Conductivity VB (breakdown voltage)

          Zn St. Xp454 wt.% pC/gm 1/0hm-Cm. Volts 1 F3C-97 0.00 1.00 1.00 28.6 22E-07 43 2 F3C-194 0.05 1.00 1.05 49.4 4.OE-07 m

' Cyan Toner # TB15135-3

Xerox Disclosure Journal - Vol. 25, No. 3 May/June 2001

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HIGH TRIBOELECTRIC CHARGE AND HIGH CONDUCTIVITY WITH ZINC STEARATE COATED CARRIERS (Cont'd)

Disclosed is the use of zinc stearate for powder coating of toner carriers in order to obtain high triboelectric charge and high conductivity carrier for use in electrophotographic printing machines. Data given in Tables 1-3 show reasonab...