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Preparation method for mixed wax for printing oil

A printing ink and wax mixing technology, which is applied in inks, applications, household appliances, etc., can solve problems such as uneven mixing, complex components, and poor compatibility of polymers

Active Publication Date: 2015-07-01
QUZHOU ZHONGTONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing known technologies all have the disadvantages of complex components, high cost, poor compatibility between polymers, uneven mixing, etc., which affect the use effect in industrial devices

Method used

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  • Preparation method for mixed wax for printing oil
  • Preparation method for mixed wax for printing oil

Examples

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preparation example Construction

[0025] The invention provides a method for preparing printing ink mixed wax, which is realized through the following steps:

[0026] Step 1. Preparation of water phase

[0027] In parts by weight, add 1000 parts of water and 0.5 part of polyvinyl alcohol into the pressure reactor, and stir evenly.

[0028] Step 2. Preparation of oil phase

[0029] In parts by weight, mix 100 parts of PE wax and 4 parts of perfluoroalkyl ethyl acrylate monomer, add 0.2 parts of peroxide initiator, and stir evenly.

[0030] Step 3. Suspension Polymerization

[0031] Add the oil phase solution prepared in the beaker in step 2 to the pressure reactor equipped with the prepared water phase in step 1, stir slowly and then quickly, then react at 50°C for 10 hours, discharge the material after the reaction, and wash with water Microspheres until the water is clear to obtain the product.

[0032] Step 4. Blending and crushing

[0033] Mix 94 parts of polyethylene wax powders grafted on the surface...

Embodiment 2

[0035] Mix 85 parts of polyethylene wax powders grafted on the surface obtained in step 3 with 15 parts of PTFE powders, grind and crush them by weight in a fluidized bed jet mill to obtain this product. The number is SX-2.

Embodiment 3

[0037] Mix 98 parts of the surface-grafted polyethylene wax powder obtained in Step 3 with 2 parts of PTFE powder, grind and crush the weight in a fluidized bed jet mill to obtain this product. The number is SX-3.

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Abstract

The invention provides mixed wax for printing ink and a preparation method for the mixed wax. The preparation method comprises the following steps: adding pure water and a polymerization inhibitor into a reaction kettle, adding a certain amount of dispersing agent, a proper amount of initiator and a certain amount of PE (polyethylene) wax / perfluoroalkylethyl acrylate mixture, raising the temperature to reaction temperature, and performing drying and discharging to obtain surface-grafted polyethylene wax powder after reaction; mixing the polyethylene wax powder and PTFE (polytetrafluoroethylene) powder, and pulverizing and crushing the mixture in a pulverizer to obtain a product. According to the mixed wax and the preparation method for the same, a small amount of perfluoroalkylethyl acrylate monomers with double bonds are introduced into a polyethylene wax skeleton as grafting monomers to improve the compatibility of a PE / PTFE polymer, and complete contact and uniform dispersion in a crushing mixing process can be ensured; in addition, multiple carbonyls are introduced into perfluoroalkylethyl acrylate to improve the intermolecular polarity of the mixed wax, damage the crystallinity of printing ink resin and maintain the polarity of the printing ink, so that the hue error resistance and scuffing resistance of the printing ink are improved.

Description

technical field [0001] The invention relates to a preparation method of mixed wax, in particular to a preparation method of printing ink mixed wax. Background technique [0002] Adding PTFE wax to the polymer coating can improve the non-adhesiveness of the countertop or the conveyor belt for conveying sticky items, and the sticky items will not stick to the waxy coating. PTFE wax is added to mineral oil or synthetic oil as a thickener to prepare special grease. Since PTFE wax has the characteristics of high and low temperature resistance, corrosion resistance and low friction, the thickened grease also has these valuable properties correspondingly, and can be used in special occasions with harsh environments. Adding PTFE wax into the ink can improve the non-adhesiveness of the ink and is suitable for high-speed printing. PTFE wax is white and can be added to any ink without affecting the color effect of the ink. [0003] EP-A-0890619 discloses, inter alia, the use of meta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/03C08F255/02C08F220/24
Inventor 刘创新许益生翁渭荣
Owner QUZHOU ZHONGTONG CHEM
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