How to identify the pros and cons of whiteboard pen ink
In addition to the novel and unique appearance of the good whiteboard pen, the quality of the ink is also crucial. If you open the cap with a pungent smell, it will make us feel uncomfortable; if it is written on the whiteboard, it can be disappointing. This not only affects our mood, but also reduces the efficiency and quality of our office and learning. How to identify the advantages and disadvantages of whiteboard pen ink? Generally, it can be judged by the following simple and easy methods:
The first is the smell. Most of the commercially available whiteboard pen inks are alcohol-soluble inks. The main solvent medium is fatty alcohol. Generally, alcohol is used as the main solvent, and other additives are added. Nowadays, the technology is also increasingly mature, and has been widely used. It is the main type of whiteboard pen ink currently on the market. After the good whiteboard pen ink is opened, only the light alcohol smell slowly floats out, and there is no other bad smell. If there are other pungent smells, the ink may contain harmful substances such as masking agent and banana water. .
Followed by intermittent writing (also known as capping moisturizing, some foreign materials are also known as anti-drying time or anti-drying time), generally in accordance with European standards: temperature 22 ° C ~ 25 ° C, humidity 50%, without wearing a cap, put a certain time After that, it can still be written normally. Commercially available inks are only 3-4 hours. Good inks are also available in 8 hours, 12 hours, or 24 hours depending on the place of production. There are even 72 hours of extra long, but it will change and affect other performances. .
Again, it is erasable. The erasability is generally divided into instant erasable and time-delayable. The instant erasable is written on the whiteboard for 30 seconds. It is easy to erase with a plate wipe or a soft cloth, without sticking or There is a "ghost shadow"; the time-delayable (also known as the retention time) means that the handwriting written on the whiteboard can be erased after a period of time, usually in accordance with the user's request for several days, ten days, Dozens of days. The length of the staying time also reflects the actual level of ink, and it is generally better to leave the board for a long time.