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Broadly speaking, pen is a widely used writing tool. It was invented at the beginning of19th century and designed by American Walter Mann. The pen is made of metal, and the writing is smooth, elastic and quite smooth.
On the mouth of the pen cap or the surface of the pen tip, there are obvious trademark numbers and models. According to the way of water absorption (inking), it can be divided into dip pen, fountain pen and ink bag pen. Pay attention to maintenance and cleaning when using.
Pen is a writing tool with metal as the main body. It contains ink (mostly black or blue) through a hollow pen tube, and then writes through a duckbill pen through gravity and capillary action. It can be said that it is a writing tool of western calligraphy.
Most pens can be replenished with ink. Generally speaking, vials or straws such as eye drops are used to supplement the kit. The earliest historical record of fountain pen can be traced back to 10 century, and this earliest fountain pen has been used until 18 century.
The development process was very slow, but it was not until the beginning of the 9th century that a pen with stable and accelerated flow was invented in the production process. Only three key inventions have made the pen a widely popular writing tool. These inventions are: gold nib made of iridium, hard rubber and free-flowing ink.
The first pen using the above three key inventions was made in AD 1850. But it was not until A.D. 1880 that mass production began. Wortmann and Wilt were the main producers at that time.
The nib can be said to be the most critical part of the pen. There are various changes from fine to coarse. Generally speaking, the most common pen tip sizes are "B (wide), M (medium), FM (thin-medium), F (thin) and EF (extra thin)".
From coarse to fine is B > M & gtFM & gtF & gtEF, nib size There will be some differences in specifications for each pen factory. Under the same size unit, the Japanese pen will be thinner than the European pen.