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UV anti-counterfeiting pen is a special pen used to make anti-counterfeiting marks, also called invisible pen. The feature is that it is colorless and transparent when written, and is basically inv...

The purpose and function of the UV invisible pen, the main purpose is to make the anti-counterfeiting mark of the product. The handwriting is colorless and transparent, and it is not easy to find u...

From processing, inspection, sorting, packaging The goods that have been busy for a few days have all been sorted out Working overtime to catch up exchange trust with sincerity Dear American Custom...

1. Colorants (including pigments and dyes): Colorants can give the ink different colors and color concentrations, and make the ink have a certain viscosity and dryness. 2. Connecting material: The ...

Modern inks are mainly divided into four categories according to the version 1. Letterpress ink: a type of ink used to print books, newspapers, picture albums, documents, account books, etc. The ma...

To maintain the oil brush, you need to wash it with turpentine or pen soap after use, then wash the grease again with soap, then dry it, and wrap the pen tip with newspaper or toilet paper.

Colored water pens can be expressed with lines. For example, to draw a landscape, first use a pencil to lightly draw the outline of the tree, and also draw the intersection line between the earth a...

Monochromatic color water pen, consisting of three parts: the barrel, the nib and the refill. A color water of one color is filled in the refill.

Watercolor pen, a painting tool. Watercolor pen is a commonly used painting tool for children. The material of the pen tip is generally carbon fiber.

Use oily needle pens (cherry blossoms), and every time you draw a picture, if you have just finished the line draft, use an oily marker, because it is all oily, so it is easy to spend.

First draw the basic shades of light and shade in the picture with a cool gray or warm gray marker.

Markers are generally divided into two types: oily and water-based. The former pigment can be diluted with toluene and has strong penetration, especially suitable for drawing on tracing paper (sulf...