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High polymer resin for electropositive toner of laser printer and preparation method for high polymer resin

A technology of laser printers and polymer resins, applied in optics, electrical recording, instruments, etc., can solve the problems of large power consumption and high production costs, and achieve the effects of low production costs, high firmness, and uniform black and white

Inactive Publication Date: 2012-06-20
WUXI JIATENG MAGNETIC POWDER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, electric heating must be used, so that the power consumption is large and the production cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] first embodiment

[0028] First choose the styrene of 80 parts by weight, the butyl acrylate of 18 parts by weight, the methyl methacrylate of 10 parts by weight, the di-tert-butyl peroxide of 20 parts by weight, the tert-dodecyl mercaptan of 8 parts by weight, 12 divinylbenzene in parts by weight, calcium hydroxide in 6 parts by weight, phosphoric acid in 18 parts by weight, and hydrochloric acid in 5 parts by weight.

[0029] Then, put styrene, butyl acrylate, methyl methacrylate, and di-tert-butyl peroxide into the high-level tank, stir for 15 minutes, then add divinylbenzene and tert-dodecylmercaptan, and continue stirring until uniform , to make mixture A.

[0030] According to the weight ratio of calcium hydroxide: phosphoric acid: deionized water = 1:0.8:28, add deionized water to calcium hydroxide and phosphoric acid, stir evenly, and heat to 90°C to generate calcium hydroxyphosphate. After keeping the temperature at high temperature for 2 hours, and then cool...

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PUM

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Abstract

The invention discloses a high polymer resin for an electropositive toner of a laser printer and a preparation method for the high polymer resin. The high polymer resin is prepared from styrene, butyl acrylate, methyl methacrylate, di-tert-butyl peroxide, tert-dodecylmercaptan, divinylbenzene, calcium hydroxide, phosphoric acid, hydrochloric acid and other raw materials by steps of mixing, reaction, rinsing, drying, crushing, screening and the like. The electropositive toner of the laser printer prepared from the high polymer resin has high blackness, is difficultly adhered to a roller, and has high fixing property and fastness, the printed image-text has uniform blackness, ozone cannot be generated, environment is protected and the production cost is low.

Description

[0001] technical field [0002] The invention relates to a main raw material for producing positively charged toner for laser printers and a preparation method thereof. Specifically, it is a polymer resin for positively charged toner of a laser printer and a preparation method thereof. Background technique [0003] It is well known in the toner production industry for laser printers that polymer resin is the main raw material for the production of positively charged toners for laser printers. high. Therefore, the glass transition temperature of this polymer resin is low, and the softening point temperature is high, so that the laser printer positive toner produced with this resin as a raw material has low blackness, easy to stick to the roller, and poor fixation and fastness. , The blackness of the printed pictures and texts is uneven, and the phenomenon of black on the top and white on the bottom often appears. In addition, the raw material of this resin contains xylene,...

Claims

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Application Information

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IPC IPC(8): C08L25/14C08K3/32C08F212/08C08F220/18C08F220/14C08F212/36G03G9/08
Inventor 周学良周维伟宋宝珍
Owner WUXI JIATENG MAGNETIC POWDER
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