Signature pens refer to pens specially used for signing or signing samples. There are water-based signature pens and oil-based signature pens. In the past, fountain pens were used, but now fountain pens are gradually replaced by gel pens. Therefore, such pens are collectively called: signature pens.

Water-based signature pens are generally used on paper, and can be easily wiped off if used on whiteboards or samples; oil-based signature pens are generally used for sample signing or other permanent marks, and oil-based signature pens are difficult to Wipe, but can be cleaned with alcohol and other substances.

Extended information

Trap 1: Many opaque ballpoint pen refills do not fill the full amount of ink as required by GB/T4306-92 (national standard). Only 1- 2cm of ink; for some transparent ballpoint pens, about 1cm of ink close to the pen tip can be written, and the rest cannot be written.

Trap 2: Inferior ink cannot be used within the ambient temperature range of 0-40°C required by the national standard. The ink will bleed when the weather is hot; it will not be able to write when the weather is cold.

Trap 3: The national standard requirement for the shelf life of ballpoint pens is two years, and inferior ink dries up in a few months.

Trap 4: The standard writing angle of a ballpoint pen is required by the national standard to be 47 degrees. An inferior pen tip or inferior ink can only write when it is vertical. If you hold the pen barrel at an angle, it will be difficult or impossible to write ( Holding the pen at an angle of about 47 degrees, in a counterclockwise direction, and making quick circles is a good way to directly test the ballpoint pen).

Trap 5: The barrels of ballpoint pens and gel pens are mostly made of plastic. The caps that fix the refills of inferior products can easily slip. The pen buckle and pen sleeve do not contact the bayonet, and are not bonded with glue. , relying on the tension of the plastic itself, it is easy to fall off; the tail plug is also easy to pop off when writing hard. The production lines of these factories are almost all paid on a piece-by-piece basis. Even if there is a quality system, there is no process and end-of-process inspection, and the quality system is in name only.

Trap 6: Gel pens are an emerging product. There are currently no national standards, and due to immature technology and production processes, ink is prone to agglomeration, thickening, and crystallization. Many manufacturers work hard, especially for gel pens with a nominal 0.5mm or 0.38mm needle tube. Most products will not be able to be written after 3-5 months.

Trap 7: Not only does inferior ink not write smoothly or well, but it also spits out ink or bleeds. There is often no problem when you look at the sample, but after payment, the goods are not correct, and there are many problems. . (Gently and quickly draw a straight line at the same angle as the ballpoint pen. A good product has continuous lines, neither thick nor thin, and consistent color depth.

Then hold the pen at the same angle and use normal writing pressure. Slowly draw the polyline. A good product line will not accumulate ink or water seepage. When writing slowly, there will be no ink accumulation points when writing. It is neither thick nor thin, and the color is consistent. Then, hold the pen at the same angle in a counterclockwise direction and quickly circle. , a good product feels smooth and smooth)

Trap 8: In addition to the ink problems of inferior gel pens, there are also inferior materials for the ball, rough inner cavity of the pen tip, and insufficient oil in the tail plug. Following, the sealing wax ball of the pen tip is not elastic and seals well, etc. These will cause problems during long storage time or during transportation or use.