Method for industrially preparing nanometer calcium carbonate for solvent type ink addition agent

A technology of nano-calcium carbonate and ink additives, applied in nano-structure manufacturing, calcium carbonate/strontium/barium, ink, etc., can solve problems affecting the printing quality of solvent inks and product storage stability, and improve transparency and gloss High degree, not easy to settle, improve the effect of uniform coating

Active Publication Date: 2009-09-16
WUHU ZHUOYUE NANO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product has good dispersibility in benzene solvent-based inks, but in solvent-based inks that use alcohols, esters, ketones, etc. as solvents in large quantities, due to poor dispersibility, particle agglomeration and precipitation occur, which not only affects the storage of the product Stability, but also affect the printing quality of solvent ink

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 0.8 cubic meters of calcium hydroxide slurry with a concentration of 6.0% (weight concentration) in a reaction kettle of 1 cubic meter, control the initial temperature of the reaction at 18 ° C, and feed the 2 Kiln gas with an amount of 20-28% (volume concentration) is carbonized, and the kiln gas flow rate is 7.5m 3 / h, slow down the carbonization rate after carbonization for 1 hour, and reduce the amount of kiln gas introduced. At this time, the flow rate of kiln gas is 1m 3 / h, after carbonization for 0.5 hours, stop carbonization and age for 1 hour, then add 0.8 kg of dissolved sucrose crystal form regulator, continue carbonization at a strong stirring speed, and the kiln gas flow rate is still 7.5m 3 / h until the pH value of the slurry drops below 7, which is the end point of carbonization, stop carbonization, and obtain evenly dispersed nano-calcium carbonate slurry for use.

[0027] Dissolve 0.6 kg of disproportionated rosin and 1.2 kg of lauryl hydroxystear...

Embodiment 2

[0030] Add 0.7 cubic meters of calcium hydroxide slurry with a concentration of 12.0% (weight concentration) in a reaction kettle of 1 cubic meter, control the initial temperature of the reaction at 22 ° C, and feed the 2 Kiln gas with an amount of 20-28% (volume concentration) is carbonized, and the kiln gas flow rate is 10m 3 / h, slow down the carbonization rate after carbonization for 1 hour, reduce the amount of kiln gas flow, at this time the flow rate of kiln gas is 1m 3 / h, after carbonization for 1.0 hour, stop carbonization and age for 1.5 hours, then add a mixture of 0.5 kg of dissolved maltose and 0.5 kg of sucrose, continue carbonization at a strong stirring speed, and the kiln gas flow rate is still 10m 3 / h until the pH value of the slurry drops below 7, which is the end point of carbonization, stop carbonization, and obtain evenly dispersed nano-calcium carbonate slurry for use.

[0031] Dissolve 2.0 kg of disproportionated rosin and 1.0 kg of dodecyl hydroxyst...

Embodiment 3

[0034] Add 0.7 cubic meters of calcium hydroxide slurry with a concentration of 9.0% (weight concentration) in a reaction kettle of 1 cubic meter, control the initial temperature of the reaction at 25 ° C, and feed the 2 Kiln gas with an amount of 20-28% (volume concentration) is carbonized, and the kiln gas flow rate is 12m 3 / h, slow down the carbonization rate after carbonization for 0.5 hours, reduce the input of kiln gas, and the flow rate of kiln gas at this time is 0.8m 3 / h, after carbonization for 1.5 hours, stop carbonization, that is, aging for 0.5 hours, then add a mixture of 0.2 kg of dissolved maltose and 1.5 kg of sucrose, continue carbonization at a strong stirring speed, and the kiln gas flow rate is still 12m 3 / h until the pH value of the slurry drops below 7, which is the end point of carbonization, stop carbonization, and obtain evenly dispersed nano-calcium carbonate slurry for use.

[0035] Dissolve 2.0 kg of disproportionated rosin and 0.5 kg of lauryl...

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Abstract

The invention discloses a method for industrially preparing nanometer carbonate for a solvent type ink addition agent. The method obtains the nanometer carbonate with cubic particles of 70 to 90nm by adopting a synthesis process of step carbonization, intensively shearing emulsification disperse and composite coating which are carried out simultaneously. The surface of the particle has amphipathic property; and the nanometer calcium carbonate has excellent dispersion and cannot be easily sedimentation, and the transparency and lustrousness of the solvent type ink addition agent is obviously improved.

Description

technical field [0001] The invention relates to an industrialized preparation method of nano-calcium carbonate used as a solvent-type ink additive. Specifically, it relates to an industrialized preparation method of nano-calcium carbonate for solvent-based ink additives, which is carried out simultaneously with step-by-step carbonization, strong shear emulsification dispersion and composite coating. Background technique [0002] High-quality products and exquisite packaging not only bring people a strong sense of visual comfort, but also bring a strong desire to buy, so manufacturers attach great importance to the creative design of product packaging in the process of product promotion. At present, plastic films such as PVC, PP and PE are mainly used for product packaging. The printing ink used for the printing of this type of plastic film is solvent-based ink. In order to improve the printing performance of solvent-based inks, it is necessary to add functional additives s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18B82B3/00C09D11/00C09D11/03
Inventor 顾达姚成邓丽丽
Owner WUHU ZHUOYUE NANO NEW MATERIALS
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