Handles with vanishing ink - a useful thing and a cool gift
Pens with vanishing ink - a fairly popular product to date, located in the windows of most stores with stationery. What is it? Handles with vanishing ink look and write exactly the same as the most ordinary ones. However, there is one nuance.
Handles with vanishing ink can not be distinguished from these
So, what's the catch? Handles with vanishing ink leave exactly the same inscriptions as ordinary ones. However, in just two or three minutes the ink begins to slowly lighten. In about ten minutes, the inscription will no longer be visible. It is impossible to consider it even in the ultraviolet light.
Handles with vanishing ink allow you to leave secret or confidential labels on documents if you need to remove them soon. In a word, temporary.
But it is worth noting that the use of such a pen in financial or legal documents is prohibited. This causes violation of the law.
There are other options
However, you do not need to receive the result in ten minutes. Invisible ink is different. Much depends on the environmental conditions. For example, in drier rooms, ink disappears faster than in wet ones. In the latter with the inscription there is no change for twenty minutes. The transformation begins after a certain period of time. The inscription becomes worse in about an hour. She pampers for a day until she disappears completely. But, as if after that you looked at the "inscription": under whatever angles and under whatever lighting - you still will not see anything. It is only necessary to take into account the fact that if the handle is heavily pressed, it can leave furrows on the paper.
Naturally, it is impossible to illegally use invisible ink for any fraud. Special expertise necessarily prove the existence of your signature.
Where do they use it?
Such ink pens are very convenient, if you need to hide any inscription after a while, especially since they look from the outside like simple gel. In fact, others do not know that these pens are filled with ink, disappearing under the influence of light.
Accordingly, they can be used for various peaceful purposes. For example, inventive girls can leave their phone number with such a poke to annoying fans. It is very convenient.And you can play a trick on the teacher, attaching a pen to the magazine for grading. You can be interested in playing your friend-botanist. He will be extremely surprised when the lecture notes disappear without a trace. The main thing is not to be offended. It's also a good idea to play a funny joke with your parents. Outline the wallpaper and look at their reaction. In general, there are many options, it remains only to show your imagination!
Can I make the ink myself?
By the way, many people are worried about one question, is it possible to make vanishing ink by myself? In fact, you can!
To do this, mix a teaspoon of dextrin with 50 ml of alcoholic iodine infusion. The precipitate is filtered, resulting in a blue ink. Their color, they lose a couple of days after the iodine evaporates.
There is another way. For the preparation of ink, it is necessary to take a twig of willow and burn it, and the coal, which after remaining, shall be finely ground. Then it must be diluted with water to the consistency of the ink. The inscriptions made by them disappear in about six days. However, it is impossible to give a one hundred percent guarantee. A small error in the preparation - and ink will not work!
Where to write?
From everywhere do the inscriptions made by such handles disappear? Of course, in order that they do not become, it is necessary to write on paper. And even its density affects how quickly the inscription disappears. Although, as a rule, much depends, as already mentioned above, on the lighting and humidity of the air. In a word, a spy pen, a dry room and a quality paper are all that is necessary for the rapid disappearance of the inscription.
And finally, with regard to quality and shelf life. The handle with vanishing ink reviews is exceptionally positive. When used correctly, ink retains its properties throughout the year. It is only necessary to put a cap on it.
In a word, this wonderful pen, at first glance, is no different from the most ordinary one.
In order to write it, almost no pressing is required. Therefore, on paper, there are not even depressions. As a result, after a while, the inscriptions made disappear without a trace, and any attempts to read them are meaningless (even with the help of ultraviolet radiation).
By the way, such a pen can be a great gift for a child who likes to play spies. Adults with a sense of humor, such a gift will also have to liking. You can choose even a special gift option: a stylish classic handle design and a beautiful, but a strict case will surely attract the attention of your family and friends.
The cost of the accessory is relatively low. It all depends on the design you choose. In principle, you can easily meet the price of 130-150 rubles. Agree, for such a unique thing, this price is simply gorgeous.
So, if you want to make an original gift or just have some fun playing your friends, a spy pen is exactly what you need! Get it and do not regret it, do not even doubt it! Well, friends and family will appreciate your sense of humor!