Name: Charge Control Agent TN-502 (Positive Charging)
Brand: Coatingsink
SKU: charge-control-agent-tn502
Availability: InStock

Question 1

What does a charge control agent (CCA) do in an electrophotographic toner formulation?

Accepted Answer

A charge control agent controls the magnitude and polarity of the electrostatic charge on toner particles during tribocharging in the developer unit. Without a CCA, charge levels are inconsistent and dependent entirely on the binder resin and pigment surface chemistry. TN-502 ensures stable positive charging, which is essential for single-component and two-component positive-charging toner systems where the photoconductor drum requires positively charged toner for image development.

Question 2

Why is a white, low-conductivity CCA like TN-502 important for color toner applications?

Accepted Answer

In color toner (cyan, magenta, yellow, and black), the CCA must not contribute any color or hue shift to the final printed image. White or near-colorless CCAs like TN-502 are therefore required for CMYK color toners. Low conductivity (insulator base) is also critical — a conductive CCA would drain the electrostatic charge from toner particles, destroying image quality. TN-502's combination of positive charging efficiency, white appearance, and low conductivity makes it suitable for all color toner channels.

Appearance	white to light beige powder
Conductivity	low (insulator base)
Charge Polarity	positive
Particle Size (d50)	2–5 µm
Recommended Loading	0.5–2.5% on toner

Charge Control Agent TN-502 (Positive Charging)

Specifications

FAQ

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