产品分类 · 26 个产品

碳粉

Polyester binder resins, charge control agents, waxes, and external additives for digital toner and electrophotographic printing systems.

Toner formulation is one of the most demanding materials-engineering challenges in printing: each particle must carry charge in a tightly controlled distribution, melt and fuse at precise temperatures without offset, and survive jetting and transfer over millions of pages without bagging or filming the OPC drum. Polyester chemistry dominates modern color toner, with crystalline-amorphous blends giving the sharp melt characteristics needed for energy-efficient fusing.

Coatingsink supplies the complete toner formulation kit: low-Tg amorphous polyesters (FE0720) and crystalline polyesters (FE0910A) for color systems, charge control agents (TN502 and equivalent), PE and carnauba wax dispersions for fuser release, surface-treated silica (R972 / R974 grades) for flowability, and magnetite and TiO2 for monocomponent and external add applications. All grades are sized and tested for digital printing duty cycles.

如何选择碳粉

买家在贸易和OEM配方中指定产品时使用的关键选择标准

01

Resin Tg & Melt Profile

Color toner needs sharp melt onset around 110–120 °C with low melt viscosity for image quality. Crystalline polyester gives the sharp melt; blend with amorphous polyester for storage stability. Mono-color black toner tolerates wider Tg.

02

Charge Control

CCA selection matches the developer system: positive-charge negative-CCA for two-component, negative-charge positive-CCA for monocomponent. Salicylate metal complexes (TN502 type) are widely used. Distribution width matters as much as average charge.

03

Wax Choice & Dispersion

PE wax for low-temperature offset release; carnauba for higher-temperature fuser release; ester wax for combined performance. Dispersion quality (typically 0.3–1 μm domain size) determines whether wax migrates correctly during fusing without surface plate-out.

04

External Additives

Hydrophobic fumed silica (R972/R974, primary particle 12–16 nm) at 0.5–2% blends in to give flowability and triboelectric stability. TiO2 anatase (200 nm) added for charge control and bleed prevention.

碳粉 应用场景

1 个应用场景指南

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碳粉产品目录(26)

本分类所有化学品牌号 — 点击产品查看TDS、起订量及询价表单

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碳粉 常见问题

Two-component toner uses ferrite carrier beads to charge the toner particles (typical for high-end office and production color). Mono-component toner contains the charge-control magnetic component within each particle (typical for desktop monochrome). Resin and CCA selection differs — mono-component needs higher magnetic loading and direct charge control.

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