1, the ink bag stores more ink than ordinary pens, so it is easy to carry when going out. Generally, there is no ink pollution to the nib, and it looks very clean.
2. Generally, the opening of ink bag is weak or sealed with beads, and ordinary pen is hard. Press the ink bag pen, the back of the pen will naturally open the ink bag and the ink can be released into the pen. When the ink is used up, pull it out and replace it with a new ink bag.
3. Different brands of steel ink capsules have different specifications. First, we must find a matching ink capsule. Then unscrew the pen body and press the opening direction of the ink bag directly in the right direction to install it. ?
4. The pen is a kind of writing tool similar to a pen with a metal body. Pen ink (mostly black or blue) is filled through the hollow pen tube, and then written through the duckbill pen head through gravity and capillary action, with different weights when writing. 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.
5. 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.
6. The first pen using the above three key inventions was made in 1850 ... but it was not until 1880 s that mass production began. Wortmann and Wilt were the main producers at that time.
At the beginning of the 20th century, American pens were introduced into China and distributed in coastal cities. After that, pens of various brands such as Conklin, Eversharp, Pelikan, Sheaffer and Parker poured in one after another.
Extended data
Generally, a pen can be used normally when it is filled with water, unlike some people who say that they have to take away a new pen with blisters. Of course, sometimes it is inevitable that the pen will run out of water or the nib will be dry. At this time, it is necessary to treat it a little.
Generally, pens with poor ink output after buying back need to be cleaned, because some pens are not cleaned before leaving the factory or when checking the nib after the counter customer tries the pen, and the components in the ink condense for a long time, blocking the ink guide groove of the pen nib, which will lead to poor water intake. In this case, you need to remove the pen tip, soak it in warm water (avoid boiling water) for half an hour, then dry it, and it can be used normally after it is installed. If it still doesn't work, you can extend the soaking time.
If it still doesn't work, you need to remove the metal piece from the nib, and then use a small brush to clean up the ink guide groove on the back of the tongue and the whole capillary structure (that is, the small cracks in the plastic part of the nib). It may also be the cause of the nib itself, and the water is not smooth. One is that the pen seam at the front end of the nib is too narrow. At this time, you can press the nib down slightly according to the usual writing posture and keep it for a second or two. You can also widen the seam with a thin blade, but be careful.
The second reason is that the ink guide groove is too narrow. At this time, it is necessary to use a thin blade to enlarge the ink guide groove, so be careful. Some new pens will have some problems when they are first used. That's because new pens are always like this when they leave the factory. Don't be too nervous. After writing for two or three days, the writing will be smooth, and it will be easy to write a lot.
References:
Baidu Encyclopedia of Pen