question 2: what is the principle of loving rubbing pens? Thermal ink? I haven't tried it, but the most famous erasable gel pen is the Japanese Baile Mill friction series, which uses thermal ink. When the temperature exceeds 6 degrees, the ink becomes colorless, and when it is put in the refrigerator, the temperature drops below MINUS 2 degrees, and the ink appears again.
I heard some time ago that this technology has been successfully copied in China.
If your favorite erasable pen is colorless after being wiped lightly with an eraser (rubber crumbs don't come off at all), it must be thermal ink.
you can also try baking it with a lighter. The words written in thermal ink are colorless as soon as they are baked by a lighter.
question 3: what is the principle of Japanese erasable pen? When ink is heated, the rubber and paper of the pen tip will decompose when it is heated.
it doesn't have to rub, and it's discolored when baked with a lighter.
question 4: what is the composition of erasable pen? Principle? Erasable pen ink is a kind of colored ink mainly made of water-soluble solvent, supplemented by polymer film forming agent, pigment and other additives. The writing tool composed of the ink and the matching pen and board can be used in school teaching, office work, academic exchange, children's painting and calligraphy practice and so on. It is characterized by fluent writing, easy writing and erasing, and no dust pollution, and can completely replace chalk and blackboard. An electric company in Japan first studied this kind of products, and then Ciba Jiaji Company in Switzerland specially developed a series of special pigments with surface treatment for this ink. Since then, this kind of pen and ink have been developed in many countries and attracted the attention of the world education community. Compared with traditional chalk, this product has remarkable economic and social benefits. The product conforms to the Q/BMS1-1996 standard, and it is proved by users that it is an ideal product for teaching blackboard writing, a major innovation of traditional teaching tools and a new domestic product. YZ-1 erasable ink production technology combines the advanced pigment dispersion and stabilization technology. The application performance of ink produced by this production technology ranks at the advanced level of similar products in China, reaching or approaching the advanced level of foreign products, and has higher cost performance than foreign products.
question 5: why is the water in the erasable pen used up all at once? Did you blow dry it with a hair dryer?
erasable pens generally make the ink transparent when the temperature reaches above 6 degrees, and this chemical change is irreversible.
the principle of the eraser on the pen is to generate a certain temperature when you wipe it to make the ink change chemically.
so be careful not to heat it.
question 6: what is the principle of the snow magic brush pen? (Personal opinion attached) The 2-minute magic pen can erase the erasable pen because the ingredients it contains can dissolve some substances in the erasable pen ... so it can be written after a period of time when the magic pen evaporates.
Erasable pen (white snow, the one rubbed with magic pen) is actually a kind of pigment, so it is not as good as ordinary gel pen, and the solvent on the magic pen tip is only a little, so too much oil can't be wiped off when the erasable pen leaks oil. There is no such bad ingredient (toxic) in ordinary gel pen, so it can only be wiped off a little, which is not obvious at all, so the rest is a mess
Excessive use may lead to chronic poisoning
first, concentrated hydrochloric acid reacts with potassium permanganate to generate chlorine gas, and then the generated chlorine gas is introduced into sodium hydroxide solution to make the magic pen potion
2kMnO4+16HCl = 2mncl2+5cl2+8H2O+2kcl
2nNaOH+Cl2 = naclo+NaCl+H2O
. The composition of magic pen liquid medicine includes NaClO, which has the same bleaching effect as Ca(ClO)2 (i.e. bleaching powder), and the organic pigment in erasable pen ink fades < P > Erasable pen ink is a colored ink mainly made of water-soluble solvent, supplemented by polymer film former, pigment and other additives.
Question 7: Can Mo Yi wipe the pen by himself? What is the principle of rubber? Can you make your own eraser? Thermal ink? I haven't tried it for my hobby, but the most famous erasable gel pen is the Japanese Baile Mill Friction Series, which uses heat-sensitive ink. When the temperature exceeds 6 degrees, the ink becomes colorless, and when it is put in the refrigerator, the temperature drops below minus 2 degrees, and the ink appears again.
I heard that this technology has been successfully copied in China.
If my favorite erasable pen is also colorless by gently wiping it with an eraser (rubber crumbs don't fall off at all), It must be thermal ink.
You can also try baking it with a lighter. The words written in thermal ink will become colorless as soon as they are baked with a lighter.
Question 8: What is the usage of the thermal erasable pen? What can be erased? Urgent! It is a special kind of ink, which can be wiped off by quick rubbing with pen rubber. But this ratio is very expensive, and the formal exam is not available.
Is a hot erasable pen a pen? There is a kind of thermal erasable eraser, which can be used. Some pens also have their own, but the eraser is better. I bought one, 8 RMB
Question 9: Is the erasable pen good? It is made of special ink and refined by special technology. It can be divided into erasable ballpoint pen, erasable gel pen, erasable water-based pen (slightly lighter in color than ink pen) and erasable pen. Its handwriting can be erased with an ordinary eraser or a special pen in a certain period of time and can be revised repeatedly, but some pens can't write, which has the dual advantages of ballpoint pen and pencil. Its appearance, writing and cost are similar to those of ordinary ballpoint pens and gel pens, and it can have different grades and colors of pens, which can be widely used for writing, drawing and drawing. Erasable ballpoint pen uses special ink to add fast volatile and viscous liquid such as petroleum, and its cost is slightly higher than that of ballpoint pen. It can be erased with ordinary rubber or rubber skin, but it cannot be used for document signature. Erasable pen, which uses special polymer materials as ink base material and is assembled by special technology. In the process of writing, the ink forms a layer of erasable pigment film on the paper through the pen tip, so that the ink can be erased. The handwriting can be erased with a common eraser like a pencil within a few hours, and the retained handwriting will not be soaked in water and will not fade after a long time. After 48 hours, it will become indelible permanent handwriting, which can be maintained for a long time. This product is similar to other ballpoint pens in appearance and writing, and has various colors such as blue, black and red. Beijing Qingda Huayan Technology Development Co., Ltd. is located in the world-famous Tsinghua University Science and Technology Park. Since its establishment in 1999, under the guidance of Professor Tsinghua University, it has made a series of breakthrough scientific and technological achievements, and has applied for more than 5 national patents, and has obtained more than 2 national invention patents and utility model patents, among which three national patents (certificates) have been obtained for environmentally-friendly erasable pens.
question 1: how to introduce examples of erasable pens? It can be written from the aspects of principle, function, performance characteristics and practical use.