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    • 5. 发明授权
    • Toner
    • 爽肤水
    • US5389485A
    • 1995-02-14
    • US981995
    • 1992-11-24
    • Yoshimichi KatagiriYuzo HorikoshiNorio Sawatari
    • Yoshimichi KatagiriYuzo HorikoshiNorio Sawatari
    • G03G9/087G03G9/00
    • G03G9/08753G03G9/08797Y10S430/105
    • The present specification discloses a toner for electrophotography.This toner comprises two or more kinds of binder resins, and is characterized in that the surface tension of each of the binder resins and the melt viscosity thereof, both at a temperature of 200.degree. C., are respectively below 30 dyne/cm and 100 poises or more, and the melt viscosity thereof and the storage modulus thereof, both at a temperature of 125.degree. C., are respectively below 5000 poises and below 40000 dyne/cm.sup.2, a toner comprising a surface tension reducing agent and a binder resin. Because the melt viscosity of the binder resin at a temperature of 200.degree. C. is 30 poises or more, a toner having an excellent void resistance can be obtained without a worsening of the fixability and blocking resistance thereof.
    • 本说明书公开了一种用于电子照相的调色剂。 该调色剂包含两种或更多种粘合剂树脂,其特征在于,在200℃的温度下,每种粘合剂树脂的表面张力和其熔体粘度分别低于30达因/厘米和100 泊松或更高,其熔体粘度及其储存模量在125℃的温度下分别低于5000泊和低于40000达因/厘米2,调色剂包含表面张力降低剂和粘合剂树脂。 由于粘合剂树脂在200℃的温度下的熔体粘度为30泊以上,所以可以获得具有优异的空隙性的调色剂,而不会导致其定影性和抗粘连性的恶化。