Colored pencils are a common drawing tool, which can make us more colorful when drawing. So, how is it made? Let us take a look at its production process and materials.

Materials of colored pencils

1. Wood: The shell of colored pencils is usually made of wood, commonly used wood is pine, birch, elm, etc.

2. Pigments: The pigments of color pens are composed of pigments, fillers, and binders. Pigment is the main component of colored pencils, it can be divided into two kinds of natural pigments and artificial pigments. Natural pigments usually come from minerals, plants, and animals, such as graphite, carbon black, laterite, indigo, etc. Artificial pigments are obtained from chemical syntheses, such as titanium dioxide, chrome yellow, ultraviolet fluorescent agents, etc.

3. Lead: The lead of colored pencils is a mixture of pigments, fillers, and binders. Fillers are usually graphite, white powder, etc., which can adjust the hardness and softness of the lead core. Binders are the materials that hold pigments and fillers together, usually resins.

The production process of colored pencils

1. Wood treatment: First, cut and polish the selected wood to make it a suitable length and diameter. The wood is then steam-treated to make it soft and easy to work with.

2. Lead core making: The pigments, fillers, and binders are mixed together to form the lead core. Then, the lead core is placed into a mold and subjected to high temperature and pressure to give it the proper shape and hardness.

3. Shell making: Cut and process the wood to form the shell. The enclosure is then painted and printed to give it an aesthetic appearance and logo.

4. Assembly: Assemble the lead and shell together to form a colored pencil. Usually, some fillers, such as paper or plastic, are added between the lead core and the shell to keep the lead core stable and prevent breakage.

5. Packaging: Pack the colored pencils, usually in cartons or plastic bags. Information such as the color and hardness of the lead core will be marked in the package for the convenience of users to choose.

Classification of colored pencils

Colored pencils can be classified according to color, hardness, and purpose. The color can be divided into red, yellow, blue, and other different colors. According to hardness, it can be divided into different hardness such as softcore, medium core, and hardcore. The purpose, it can be divided into different purposes such as student use, professional use, and artistic use.

The production process and materials of colored pencils are also very important. Only by choosing suitable materials and adopting scientific production processes can high-quality colored pencils be produced.

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