Pigment composition for children's painting and preparation method

Abstract

The invention relates to a pigment composition for drawing of children and a preparation method thereof. The pigment composition is characterized by comprising the following components in parts by weight: 6.0-14.0 parts of white oil, 1.0-8.0 parts of higher fatty alcohol, 1.0-5.0 parts of oil-soluble surfactant, 0.1-0.5 part of ethyl p-Hydroxybenzoate, 70.0-85.0 parts of deionized water, 1.0-4.0 parts of glycerol, 1.0-4.0 parts of polyvinylpyrrolidone, 0.5-5.0 parts of water-soluble surfactant, 0.1-0.5 part of potassium sorbate and 0.5-4.0 parts of food colourant. The preparation method comprises the following steps: using white oil, higher fatty alcohol, oil-soluble surfactant and ethyl p-Hydroxybenzoate to prepare an oil phase material; using deionized water, glycerin, polyvinylpyrrolidone, water-soluble surfactant and potassium sorbate to prepare an aqueous phase material; and then adding the aqueous phase material in the oil phase material, evenly emulsifying and cooling to the room temperature to obtain the pigment for drawing of children. Compared with the prior art, the dosage of the colorant is low, the coating of the product is smooth, the color is bright, the cost is low, the storage stability is good and the production efficiency is obviously increased.

Description

technical field [0001] The invention relates to the technical field of painting supplies, in particular to a pigment composition for children's painting and a preparation method. Background technique [0002] Finger painting is a special form of painting in which the palm and fingers are directly dipped in paint to paint. Finger painting can be expressed by dotted lines or color blocks. Finger painting is suitable for the physiological development characteristics of preschool children. When children's small muscles and nervous system are not fully developed, and before children can fully learn to hold and do fine movements, small hands are already children's first paintbrush. Finger painting can not only cultivate children's artistic talent earlier and better, but more importantly, it can greatly promote the development of children's brain intelligence, hand-eye coordination ability and aesthetic level. As people pay more and more attention to the development of children's...

AI Technical Summary

Problems solved by technology

[0008] Although the pigments produced by the methods provided by the above patents or patent applications have certain characteristics, they all have the following problems: one, the fillers and pigments used are insoluble or insoluble, and their particle diameters are relatively large. It is a large particle or small agglomerate of 20-100μm. When preparing the product, the material needs to be ground by a three-roll machine for many times to break and disperse the pigment particles, but the particle size still reaches 10-40μm

Not only the production efficiency is low, but also there are phenomena such as unsmooth coating and poor physical stability of the product, which affects the appearance and shelf life of the product

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