JPS59179572A - Writing utensil set - Google Patents

Abstract

PURPOSE:A writing utensil set, capable of coloring or discoloring by reacting a solution containing a coloring assistant, etc. with a script written in an ink containing a colorant and returning to the original state naturally after allowing to stand, accelerating the speed of learning on using reference books for study and further enhancing the memorizing efficiency. CONSTITUTION:A writing utensil set capable of coloring or discoloring by reacting a solution containing a coloring assistant (preferably a chemical substance containing an element, e.g. pH adjustor or ions, reacting with a colorant, and developing color, water or an organic solvent, e.g. an alcohol or ketone), a gas or solid with a script written in an ink containing the colorant, preferably a pH indicator, e.g. Naphthyl Red or discoloring dyestuff, e.g. laccaic acid, and returning naturally to the original state by allowing to stand. EFFECT:Answers can be found by entering the solutions, keywords, etc. in a blank part of reference books for the study in an invisible colorant ink, e.g. colorless ink, and applying a solution containing a coloring assistant to the blank part when studying.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention develops or changes color by applying a solution, gas, or solid containing a coloring aid after drawing with an ink containing a coloring agent, and naturally returns to its initial state after being left. Back to writing instrument sets Conventional writing instruments have been colored by pigments since the beginning, and technological improvements have also improved the hue, luster of the color,
Emphasis has been placed on stability, and results have been poor in terms of how to develop, change, and erase color. Therefore, it is uninteresting, and from a practical point of view, for example, in study reference books, answers that should be written in the blank spaces in the question text are printed in a separate volume or on the same page (outside 1^η etc.). Some methods apply the principle of filling in a part with a red marker and viewing it through a green filter, so that the red part becomes black and words are hidden, but this is difficult to apply to normal problem sets, and it is difficult to apply to hide keywords. It always passes through a green filter.

The present invention is different from the conventional writing instruments or writing instrument sets as described below.When writing with ink containing a coloring agent, the present invention is initially colorless, or if the paper surface is colored, even if it is colored, it is not visible because it is the same color, and the next If necessary, a solution containing a coloring aid is applied or sprayed on the surface, or a gas is applied or a solid is applied on the surface to develop or change color, and after being left to stand, the color fades or changes to its initial state. It is something. Therefore, for example, even if it is initially colorless or colored, write answers, keywords, etc. in the blank spaces of the study reference book using coloring agent ink that you want to be visible under conditions such as the same color as the paper surface, and when learning, use coloring aids as necessary. By applying or spraying a solution containing the agent, the answer can be determined by developing a color or becoming a parent color. If left unattended, the color will naturally disappear or return to its original color, so it is advantageous) 1]
The person can use a blank space from next time onwards. I-L
can be used repeatedly.

The coloring agents used during the wood development period include pt+indicator, which shows the coloring area of the representative ones in Table 1, or PT+ indicator, which shows the coloring area of the representative ones in the '11 area, or Table 2 shows the coloring areas of the typical ones. Color-changing pigments, as well as flavonoid pigments that change color depending on the presence or absence of oxidation-reduction reactions, ferric chloride, and methoxyl groups in addition to 1' 11 changes; In addition to OH changes like dyes, certain reagents, redox,
Specific color-changing treatments, such as focusing metal ions, can also be applied to each pigment.

Next, when the coloring agent used in the present invention is a PH indicator or a color-changing dye, the coloring auxiliary agent is an acidic one that can adjust the PH;
It is an alkaline or neutral compound, its solution, or gas. Acidic compounds include strong acids such as hydrochloric acid and sulfuric acid, inorganic weak acids such as acetic acid, carbonic acid, and oxalic acid, and organic acids such as citric acid and tartaric acid.
e, salts of strong acids and weak bases such as ammonium sulfate, copper sulfate, and ammonium chloride, and exhibit a pH in the range of 1 to 7 in aqueous solution. Alkaline compounds include strong bases such as sodium hydroxide and potassium hydroxide, salts such as sodium carbonate and potassium carbonate, ammonia solutions and gases, and organic chemicals containing amine groups such as ethanolamine, isopro/nolamine, and methylaminopropylamine. Examples of neutral coloring aids include neutralized salts and solutions of acids and alkalis, as well as hydroalcohols, ketones, and other organic solvents and their vapors, as well as gases and smoke generated by burning them. There are ingredients. When the coloring agent is a flavonoid colorant, 1) i [In addition to the above, a reducing agent of magnesium hydrochloride type, metal ions such as ferric chloride, copper tin, etc. can be used. There are various methods for naturally decoloring after coloring, but one is to initially write with ink containing coloring agent (1), and then apply a volatile coloring aid or apply a residue, or use a liquid such as that.
This method involves using a solid containing gas. Another method is to take advantage of the property of decoloring when drying.When using a 1''11 indicator, select a coloring agent appropriately and mix in a 17.1''11 adjustment agent. ,
It can be decolored by drying, and when used, it can be colored by applying or spraying a good organic solvent such as water, alcohols, ketones, etc., and it can also be naturally decolored (changed in color) by drying. In this case, organic solvents such as water, alcohols, and ketones can be boiled together with coloring aids, or are basically neutral. In addition, in order to adjust the erasing time, etc., the above-mentioned coloring agent is used as an ink, a solvent, water, alcohol 4112, ketones, polyhydric or various thickeners, rosin as additives. ,
By adding shellac, cellulose, acrylic, epoxy, silicone resin, phenol resin, etc., it is possible to prepare either water-based ink or oil-based ink. The bath solution for adjusting the coloration aid may be water, alcohols, or various organic solvents listed in iii. Additionally, various thickeners, preservatives, etc. may be mixed as additives. Ammonia or various organic compounds having amine groups can also be used as dregs. Also, harden the iV color aid with soap etc.
During use, adjustments such as adding moisture can be made to develop or discolor (discolor).

Next, for the jfl-arrangement in which the coloring agent ink is incorporated, there is a pen type having a thin tube shown in Fig. 1(a), a flagipen,
It can be applied to various types of pens such as US brushes, felt-tip pens, fountain pens, and hole pens, and is selected depending on the adhesive resistance and purpose. Figure Jfa) is an example of a common plastic pen,
(2) is a pot, 2 is a cap, 3 is a tail plug, and 4 is a core containing colored ink, which is written via a tip 5. The tool for applying the coloration aid is shown in Figure 1 (1))
In addition to the flag pen type shown in , there are various writing instruments such as felt-tip pens and brushes, tissue paper, and containers with a sponge attached to the tip, and any of them may be used. Figure 2 (1) is an example of a common flan pen, where 1 is the body, 2 is the cap, and 3 is the tail plug.

4 contains a coloring aid in the core, which penetrates into the brush pen at the tip and is applied at the tip. There are sprays and other tools for spraying the coloring aid, and as shown in the 21st YI+, one can put the coloring aid or its solution in a bag tightly sealed with a polymer film. , fill in with coloring ink]
It is also possible to create color by inserting a colored paper surface into it. In this case, the color is erased by removing it from the bag. In the example shown in FIG. 2, a part of the bag is sealed. There is a felt 2 containing ammonia liquid inside the felt 2 sealed at 3, and the steam is communicated to the inside through an opening 4. The bag usually has a zipper 6 to prevent steam from escaping.

By using the present invention having the above structure,
For example, when applied to study reference documents, it can speed up learning and improve memorization efficiency. It can also be applied to interesting toy paintings in which various colors appear and disappear instantly.

Example 1 A coloring agent ink was prepared using the following component ratios.

Ethyl alcohol 100 parts Propylene glycol 2 parts Surfactant
3rd part sheratsk
Part 2 Kizamethoxy Red
Impregnating two parts of this ink into the pen shown in Figure 1(a),
I wrote my answers in the blank spaces on the question book. Characters written in this state were colorless and transparent. Next, the Brare pen shown in FIG. 1(b) was impregnated with the following coloring aid solution.

water 100
When the blank area where the answer was written in one part glacial acetic acid and one part coloring agent ink was traced with a brush pen impregnated with the coloring aid solution, the answer appeared in red, and the color disappeared after about 1 minute.

Since I was able to repeat these operations over and over again, my learning efficiency was greatly improved.

Example 2 The paper surface including the part written with the coloring agent ink of Example 1 was
When the paper was inserted into the plastic bag shown in Fig. 2, the area containing the coloring agent ink developed a red color (1), but when the paper was taken out of the bag, the color disappeared after a few seconds. When this tool was applied to study reference documents, it was extremely useful for long texts.

[Brief explanation of the drawing]

FIG. 1(a) is a diagram showing an example of a writing instrument used in the present invention, FIG. 1(b) is a diagram of a coloring aid liquid application tool, and FIG. 2 is an example of a tool containing a vapor type m coloring aid. FIG.

Claims (4)

[Claims] (1) A writing utensil set that, after being written with ink containing a coloring agent, develops or changes color by applying a solution, gas, or solid containing a coloring aid, and returns to its initial state naturally after being left unused. . (2) The writing instrument set according to claim 1, wherein the coloring agent is an i'it indicator or a color-changing dye. (3) The writing instrument set according to claim 1, wherein the coloring aid is a chemical substance containing an element that causes coloring by acting with a coloring agent such as a PH adjuster or an ion. (4) The writing instrument set according to claim 1, wherein the coloring aid is an organic solvent such as water, alcohol, or ketones.