This year's tragic pupil, who recently went viral on the Internet, used a hot-erasable pen to write his winter vacation homework on a heated kang, but the words on the homework "mysteriously disappeared". A lot of netizens sympathize with the pupil when can not help but give birth to a question: what is hot can wipe?
"The most miserable primary school students" use hot erasable homework after the word hot "become not"
When it comes to hot erasable, let's first look back at school for so many years, experienced countless homework and exam torture, writing mistakes often happen, in the end, is there any way to gracefully erase mistakes?
The first thing that comes to mind is the most commonly used pencil in childhood! But the pencil writing is shallow, erasers up to remove slag, and sometimes not clean wipe a black hand. In the case of using pen and neutral pen can only be covered by correction tape and correction fluid, or use tape and scrub eraser to remove the word roughly, not only the appearance level is reduced and may make paper damage.
In this case, heat erasable appears! The advantages of the heat erasable pen and pencil are integrated, which can not only write the same words as the neutral pen, but also erase the wrong words more easily than the combination of pencil eraser, and leave no trace and residue. Why is hot erasable pen so magical?
The reason why the heat erasable is so amazing, because it uses a high technology containing color material, color agent and color changing temperature adjustment agent "thermal ink", and this special material is actually a kind of pigment, when the temperature reaches 45 degrees, polymer chain expansion loose, this time will lead to the loss of pigment molecules, color light changes, The only thing left is the faint yellow writing that can be seen when you look closely under a strong light to achieve a "heat-erasable" effect.
Contrast before and after wiping using Chenguang Stationery "Heat Erasable" writing
Friction heat is easy to achieve, than erase pencil words also save effort, in the face of the headache of wrong words, do not need to take correction belt without erasers, one can go all over the world! However, once encountered like the poor children winter vacation homework handwriting let heated kang "become" situation, how to do? In fact, as long as a small movement, put it in an environment below -15℃, such as the frozen layer of the refrigerator, it will reappear.
Although hot erasable good, but also need to pay attention to the following points when using.
1. What are the applicable scenarios for heat erasability?
Hot erasable for writing daily homework, practice notes, easy to erase, mistakes disappear. It is not recommended to use in important documents, exams and long-term files that need to be saved. The consequences are well understood. If you are not afraid of ten thousand, you are afraid of one thousand......
2. Why can't you use heat erasable during the exam?
Heat erasable chroma than normal neutral ink concentration, in the age of machine reading card is not dominant; In addition, due to friction and other reasons, the handwriting is unclear, affecting the exam results. In addition, if the paper is not kept properly, such as the high temperature, the handwriting will disappear, it will be very tragic.
3, accidentally erase the writing, can you make it back?
Yes. The use of refrigeration method, put the book into the -15℃ freezer layer for 5 minutes, the heat erasable heat sensitive material at low temperature, pigment molecules regeneration, writing can be restored!
Put in the freezer for 5 minutes to recover the "heat-erasable" erased writing
Because of its heat-erasable character, it is very easy to modify writing with heat-erasable, and proper use can help to achieve clean writing of assignments and notes. I hope that students can better use this homework and note-taking artifact after understanding the hot erasable, to avoid similar "tragedy".
