Neutral erasable ink composition and preparation method thereof

An ink composition and neutral technology, applied in the direction of ink, cleaning methods and appliances, chemical instruments and methods, etc., can solve the problems of insufficient ball milling, low ball mill efficiency, uneven particle size, etc.
CN112280381APending Publication Date: 2021-01-29闫西安
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
闫西安
Publication Date
2021-01-29

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Abstract

The invention discloses a neutral erasable ink composition and a preparation method thereof, and belongs to the technical field of ink preparation. The neutral erasable ink composition comprises the following raw materials: 2-10% of an alcohol-soluble dye, 25-35% of a film forming agent, 0.5-1% of a lubricant, 0.5-1% of a surfactant, 0.5-1% of a stabilizer, 1-2% of a thickener, 10-15% of a dispersant, 30-45% of a solvent, 0.5-1% of a leveling agent, and 0.05-0.5% of an antifoaming agent. The preparation method comprises the following preparation steps of: pretreating a color-based pigment; adding auxiliary materials, performing mixing, ball-milling and dispersing; preparing a pigment aggregate in the form of an atomized solvent and a wetting agent, and softening the pigment aggregate; carrying out high-speed shearing to realize de-aggregation and pre-dispersion to obtain sub-nano-scale particles; and performing defoaming and filtering. The ink has good writing performance; no obvious trace exists on the back face of writing paper; and handwriting can be erased easily through a common eraser.
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Description

technical field

[0001] The invention relates to the technical field of ink preparation, in particular to a neutral erasable ink composition and a preparation method thereof. Background technique

[0002] Ink is one of the important writing materials in human social life. Among them, neutral ink has become an important reason restricting the development of gel pens due to its special properties. The current market has a large demand for neutral inks, and the development market prospects and economic benefits are very considerable.

[0003] In the existing technical field, the quality of gel pen properties is mainly reflected in the ink component formula and preparation method. During the preparation process, the viscosity, surface tension and pH value of the ink must be kept at a certain value to ensure the quality of the ink. At the same time, the prepared ink must be smooth and continuous when writing, and the stability of the ink must be maintained to ensure that the ink...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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