Dispersant-attached polytetrafluoroethylene particle, composition, layer-shaped article, electrophotographic photoreceptor, process cartridge, and image forming apparatus

A dispersant-attached polytetrafluoroethylene particle comprising:

• a polytetrafluoroethylene particle;
• and
• a dispersant that attaches to a surface of the polytetrafluoroethylene particle and contains a fluorine atom,
• wherein a particle size distribution index [D50-D10] is less than 50 nm and an electrical conductivity is 7 μS/cm or less,
• the dispersant that contains a fluorine atom is a fluorinated alkyl group-containing polymer obtained by homopolymerization or copolymerization of a polymerizable compound having a fluorinated alkyl group, and
• the fluorinated alkyl group-containing polymer is a fluorinated alkyl group-containing polymer having a structural unit represented by general formula (FA) below, or a fluorinated alkyl group-containing polymer having a structural unit represented by general formula (FA) below and a structural unit represented by general formula (FB) below:
• where, in general formulae (FA) and (FB), RF1, RF2, RF3, and RF4 each independently represent a hydrogen atom or an alkyl group, XF1 represents an alkylene chain, a halogen-substituted alkylene chain, —S—, —O—, —NH—, or a single bond, YF1 represents an alkylene chain, a halogen-substituted alkylene chain, —(CfxH2fx−1(OH))—, or a single bond, QF1 represents —O— or —NH—, fl, fm, and fn each independently represent an integer of 1 or more, fp, fq, fr, and fs each independently represent 0 or an integer of 1 or more, ft represents an integer of 1 or more and 7 or less, and fx represents an integer of 1 or more.