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Toner

  • US 8,986,914 B2
  • Filed: 09/15/2011
  • Issued: 03/24/2015
  • Est. Priority Date: 09/16/2010
  • Status: Active Grant
First Claim
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1. A toner comprising toner particles, each of which contains a binder resin and a wax, and inorganic fine particles,wherein the binder resin containsa polyester resin A obtained by condensation polymerization of a polyvalent carboxylic acid and an alcohol component mainly containing an aromatic diol, anda polyester resin B obtained by condensation polymerization of a polyvalent carboxylic acid and an alcohol component mainly containing an aliphatic diol, andwherein the toner satisfies the following formula (1)
1.05≦

  • P1/P2≦

    2.00 



    (1)[in the formula (1), P1=Pa/Pb and P2=Pc/Pd]whereinPa is the intensity of the highest absorption peak in the range from 2843 cm

    1
    to 2853 cm

    1
    in a FT-IR spectrum obtained by attenuated total reflectance (ATR) method by using Ge as the ATR crystal and under the condition of an infrared light-incidence angle of 45°

    , andPb is the intensity of the highest absorption peak in the range from 1713 cm

    1
    to 1723 cm

    1
    in the FT-IR spectrum obtained by attenuated total reflectance (ATR) method by using Ge as the ATR crystal and under the condition of an infrared light-incidence angle of 45°

    ,and whereinPc is the intensity of the highest absorption peak in the range from 2843 cm

    1
    to 2853 cm

    1
    in a FT-IR spectrum obtained by attenuated total reflectance (ATR) method by using KRS5 as the ATR crystal and under the condition of an infrared light-incidence angle of 45°

    , andPd is the intensity of the highest absorption peak in the range from 1713 cm

    1
    to 1723 cm

    1
    in the FT-IR spectrum obtained by attenuated total reflectance (ATR) method by using KRS5 as the ATR crystal and under the condition of an infrared light-incidence angle of 45°

    .

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