Toner and preparation method thereof
A technology of toner and crosslinking agent, which is applied in the field of toner and its preparation, and can solve problems such as undiscovered toner
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Embodiment 1
[0060] This embodiment provides a toner, and its preparation method specifically includes the following steps:
[0061] (1) Synthesis of unsaturated crystalline polyester resin A1
[0062] In a four-neck flask connected with a nitrogen introduction tube, a condenser, a dehydration tube and a stirrer, add 195 parts of dimethyl terephthalic acid in parts by mass and stir at 150°C for 1 hour, then add 85 parts of maleic glycol . Afterwards, raise the temperature to 200°C and continue the reaction for 5 hours, judge the loss of maleic glycol by analyzing the theoretical reaction water content of the distillate, add diethylene glycol for compensation, and continue the reaction for 3 hours to obtain an unsaturated crystalline polyester resin A1. The melting point Tm of the unsaturated crystalline polyester resin A1 was 60.7°C, the weight average molecular weight Mw was 15500, and the acid value of the unsaturated crystalline polyester resin was 20.5 mg KOH / g.
[0063] (1-2) Synth...
Embodiment 2
[0083] This example provides a toner, the preparation method of which is different from Example 1 only in that 20 parts of unsaturated crystalline polyester resin B2 modified by a triazine crosslinking agent is replaced by 8.9 parts of triazine in step (4) Unsaturated crystalline polyester resin B2 modified by similar cross-linking agent to obtain toner matrix M2 and finally toner T2.
Embodiment 3
[0085] This example provides a toner, the preparation method of which is different from Example 1 only in that in step (4), 20 parts of unsaturated crystalline polyester resin B2 modified by a triazine crosslinking agent is replaced by 34.3 parts of triazine Unsaturated crystalline polyester resin B2 modified by a similar cross-linking agent to obtain toner matrix M3 and finally toner T3.
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