Filming flow type polyacrylacid ester soap-free emulsion, synthetic process and use thereof in printing ink

A technology of polyacrylate and soap-free emulsion, which can be used in inks, applications, household utensils, etc. It can solve the problems of short development time and foreign exchange consumption, and achieve the effects of high transparency, good weather resistance, and small chroma value

Active Publication Date: 2009-01-21
广东天龙油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the short development time of water-based inks in China, such acrylic grinding resins used in water-based inks, especially high-end water-based inks, have not been produced in China, but all rely on imports, which consumes a lot of foreign exchange every year.
The reason is that it is difficult for domestic resin manufacturers to integrate the quick-drying properties, film-forming properties, water resistance, and rheological properties close to Newtonian fluids into one resin, and only the film-forming rheological polyacrylate soap-free emulsion is the only one with of the above performance

Method used

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  • Filming flow type polyacrylacid ester soap-free emulsion, synthetic process and use thereof in printing ink
  • Filming flow type polyacrylacid ester soap-free emulsion, synthetic process and use thereof in printing ink
  • Filming flow type polyacrylacid ester soap-free emulsion, synthetic process and use thereof in printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] In a 3-liter four-necked round-bottom flask with paddle stirrer, thermocouple and condenser, add 323.5 grams of deionized water, 4 grams of JS-2 (polymerizable emulsifier) ​​emulsifier, and use 10 grams of deionized 2 grams of ammonium persulfate dissolved in water make the first mixture; in another round-bottomed flask with stirring (stirring is opened), add 120 gram deionized water, 6 gram JS-2 emulsifier, stir for 5 minutes, Then, in the process of constant stirring, 100 grams of methyl methacrylate, 20 grams of styrene, 16 grams of methacrylic acid, 164 grams of butyl acrylate, 100 grams of isooctyl acrylate, 50 grams of RHODOLINE211 (sodium polyacrylate 43% solution), n-dodecyl mercaptan 20 grams, make pre-emulsion A; Add 1 gram of ammonium persulfate that 50 grams of deionized water dissolves in the third round bottom flask again, make initiator solution A ;The first mixture is warmed up to 85°C, and within 90 minutes, the pre-emulsion A is added dropwise to the f...

Embodiment 2

[0058] Embodiment 2 The process is the same as that of Embodiment 1, except that the emulsifier JS-2 is changed to SVS-25 to prepare a film-forming emulsion B with a viscosity of 1000 cps, a pH value of 8.6, and a solid content of 45%.

Embodiment 3

[0060] Johnson 617 was selected as a reference substance, and the application test research in water-based ink was carried out, and two kinds of water-based flexographic paper inks, red and blue, were prepared.

[0061] The red water-based ink formula is: 30 grams of red water-based ink base ink, 20 grams of non-film-forming emulsion Johnson631, 45 grams of film-forming emulsion Johnson617, and 5 grams of W2F polyethylene wax.

[0062] The blue water-based ink formula is: 40 grams of blue water-based ink base ink, 100 grams of non-film-forming emulsion Johnson631, 45 grams of film-forming emulsion Johnson617, and 5 grams of W2F polyethylene wax.

[0063] The film-forming emulsion A prepared by the present invention was used instead of Johnson617 to obtain a comparative sample.

[0064] The product performance comparison is as follows:

[0065] Table 3 Performance comparison of water-based ink products prepared by different film-forming emulsions

[0066]

[0067] As can b...

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Abstract

The invention provides a soap-free acrylic acid latex, and a preparation method thereof and application in water-based ink. On one hand, a polymeric surfactant can be used to replace the prior surfactant during the reaction process; and after the latex is dried and forms a film, compounds with low molecular weight are reduced greatly and the water resistance of the film is effectively improved. On the other hand, protective glue is introduced into the reaction process to change the rheological property of the latex, and the rheological property of the latex is close to that of Newtonian liquid; simultaneously, the protective glue can also further improve the mechanical stability of the latex and make the latex more suitable for the water-based ink.

Description

technical field [0001] The invention relates to a soap-free acrylic emulsion, a preparation method thereof, and an application thereof in water-based ink. Background technique [0002] According to common knowledge, emulsifiers are added in traditional emulsion polymerization to stabilize and nucleate the system. Emulsifiers are generally hydrophilic small molecular compounds, which remain in the emulsion and are difficult to remove, causing gaps in the coating film to appear incomplete, thereby affecting the electrical properties, optical properties, surface properties and water resistance of emulsion polymerization, and at the same time causing environmental pollution. pollute. However, soap-free emulsion polymerization refers to an emulsion polymerization process without adding an emulsifier (more precisely, without adding a conventional small molecule emulsifier) ​​or adding a small amount of an emulsifier (less than its critical micelle concentration). Because it basi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/10C08F2/22C09D11/10C09D11/107
Inventor 冯毅王大田余中华车继程
Owner 广东天龙油墨有限公司
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