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发明授权
CN105732997B 树脂细颗粒、包括使用该树脂细颗粒的树脂颗粒的制造方法和调色剂的制造方法 有权

树脂细颗粒、包括使用该树脂细颗粒的树脂颗粒的制造方法和调色剂的制造方法
摘要：
本发明涉及树脂细颗粒、包括使用该树脂细颗粒的树脂颗粒的制造方法和调色剂的制造方法。提供一种调色剂的制造方法，其包括以下步骤：将包含树脂R、着色剂和有机溶剂的树脂溶液，包含含有元素α的树脂S的树脂细颗粒，和二氧化碳混合，从而形成表面覆盖有树脂细颗粒的液滴；引入液体状态的二氧化碳并加压从而提取液滴中的有机溶剂；和将提取的有机溶剂与二氧化碳一起除去，从而获得调色剂颗粒。在调色剂的制造方法中，当树脂细颗粒用液体状态的二氧化碳进行处理时，与处理前的量相比处理后的树脂细颗粒的表面上的元素α的量的变化落在特定范围内。
摘要（英）：

Provided is a method of producing a toner including the steps of: mixing a resin solution comprising a resin R, a colorant, and an organic solvent, a resin fine particle comprising a resin S containing an element α, and carbon dioxide to form a droplet having a surface covered with the resin fine particle; introducing carbon dioxide in a liquid state and pressurizing to extract the organic solvent in the droplet; and removing the extracted organic solvent together with the carbon dioxide to provide a toner particle. In the method of producing a toner, when the resin fine particle is treated with the carbon dioxide in a liquid state, a change in amount of the element α on the surface of the resin fine particle after the treatment as compared to the amount before the treatment falls within a specific range.

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