Acidic components

The Twin Tip Liquid Glue AQUA PIT PIT NO-WRINKLE is neutral. PIT HI-POWERand PIT VISIBLE BLUE are weakly alkaline. No acidic components are added....

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Plastic Plastic Eraser material (polyvinyl chloride resin)

It can be said that there is no problem especially because it is possible to incinerate it properly if it burns the PVC (P.V.C = polyvinyl chloride) and it is a country with advanced incineration faci...

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Raw material for glue stick

The adhesive component is made of polyvinyl pyrrolidone, a gelling agent (soap), a dissolving component of the synthetic resin, dissolved in water and alcohol and mixed at elevated temperatures. Thes...

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Plastic Eraser Raw Material

In the case of rubber Plastic Eraser made from raw rubber, natural rubber + Substitute + abrasive material is the main component. Substitute has been called sub for short. It mixes it with the raw rub...

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Plastic Plastic Eraser

If you fix what is called an eraser in the United States Japanese, many people will be " Plastic Eraser ". But in fact, most of what is made of rubber is made of plastic at a minimum. Therefore, it wi...

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A good use of glue stick

Please do not put too much out. It is a knack that the glues comes out, but does not exceed 2 ~ 3mm at all times. Please be aware that if you are too far away, you will be prone to a glues collapse, o...

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Difference between glue tapes and double sided tape

The double-sided tape has a tape that is a base material, and the adhesive is applied on both sides. Therefore, the thickness of the glues is thicker than 100 ~ 130 μm. The glue itself is glues a tape...

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How the color of the PIT VISIBLE BLUE disappears

It is made by blending the pH indicator that the PIT VISIBLE BLUE becomes colorless if there is a color until pasting and it dries up and it pastes it. In a word, it is an alkaline in the state of the...

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Names in foreign countries

Glue (glue glues ) in English, solid glues Is called Gluestick (glue stick), liquid glues is Liquidglue (rekitdo glue). For solid glues , Germany is called Klebstoff (clebusschtoof), colle in France (...

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A good use of Plastic Eraser

[How to apply Plastic Eraser ] Use the corners and roundness of the eraser to Plastic Eraser match the size of the one you want to erase. [How to put the force] When rubbed strongly from the beginn...

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The reason for the cut of the corner of the sleeve

It is to prevent the corner of the Plastic Eraser body from bite to the sleeve even if the Plastic Eraser is pushed out by a considerable strong force and the character is erased. We call the processi...

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Plastic Eraser Manufacturing method

There are two types of methods (press method) to make affected in plate shape while heating the mixed material, and how to make it by heating and extruding into a rod (extrusion molding method). The ...

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History of Japan Plastic Eraser

It is said that the first Japan made Plastic Eraser was born in Meiji 26. The quality was not very good, and the Plastic Eraser for the drafting was relied on the import. Showa 3 (1927) for drafting P...

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History of the Plastic Eraser

The graphite was discovered in the 16th century, and it was used as a pencil, but at that time, it was erased with a wheat bread without good erase tools. In 1770, the origin of the Plastic Eraser fou...

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Types of Plastic Eraser

There are two types of Plastic Eraser , the so-called rubber-shaped eraser made of natural rubber, and the plastic erase. Because some things are not rubber, it is called "erase" accurately. The rubbe...

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Is the non-dust Plastic Eraser not erased?

It is often thought that it eraser dust is an eraser that is not Plastic Eraser erased from the name of non-dust, but in fact it does not mean that the eraser dust does not come out. Because the erase...

https://www.tombow.com/en/mamechishiki/e76/

What is acid-free?

Acid is acids that do not contain acidic components. However, in a Tombow Pencil , the meaning of acid-free is not "acids or alkalis, nor does it tarnish paper or letters!" 」 The "Acid-free mark" is...

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Can you erase the character of a ballpoint pen ?

These days I often see an Plastic Eraser that can erase the ink of a ballpoint pen like a pencil. This is how it is erased on earth, and the ink of the ballpoint pen is scraped off the paper. Therefor...

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How to erase characters with Plastic Eraser

It is a state written in the paper of "character" and "picture" that the powder of the pencil made of graphite enters the eyes of the paper. The powder is immediately peeled off from the paper when pu...

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History of Mechanical Pencil

It is said that the key run of the United States was announced by the name of "Eversharp" almost 100 years ago. The first domestically produced by Hayakawa Metal (current Sharp Co., Ltd.) was release...

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Types of mechanical Pencils

There are two types of mechanical pencils, which are called " knock mechanism " and "Feeding type". The knock mechanism includes a side knock mechanism type and an automatic knock mechanism type....

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English name of mechanical pencil

The mechanical pencil is named after Tokuji Hayakawa, the founder of Sharp Corporation, and is called Mechanical Pencils in English. In the Japan, it is nicknamed such as a mechanical pencil, and is e...

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Why does the knock sound ?

In short, the ring in the inside is flipped, and the sound which knocks against the back wall becomes it. Therefore, the tick sound does not relate to a basic performance. The metal chuck sounds bette...

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Length and thickness of the Spare Leads

The thickness of the core is determined by JIS. The recommended value is also shown for the length. There seems to be a lot of 60mm length....

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Spare Leads Eco

The eco Mark and the green purchasing method are prescribed for the container containing the core, and the recycled material (recycled plastic or recycled paper) is used. In the Tombow , recycled plas...

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0.3 mm thicker than the Spare Leads ?

The "core" and "diameter" are defined by JIS standards. The 0.3 mm core will be exactly 0.38 mm on average and will be close to 0.4 mm thick. Each manufacturer is manufactured in accordance with this ...

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About the concentration of the Spare Leads and the Pencil

In JIS, both the Spare Leads and the pencil core were originally the same standard. However, in order to be consistent with international standard ISO, we have established JIS standards separately. Si...

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Type of core

In the market, there are 12 types of core diameters: 0.2, 0.3, 0.4, 0.5, 0.7, 0.9 mm, and the intensity is 4B to 6H (4B, 3B, 2B, B,HB, F, H, 2H, 3H, 4H, 5H, 6H). Tombow has a core diameter of 0.3mm, 0...

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About the color Spare Leads

There are two kinds of color Spare Leads . The same as colored pencils, a non-calcined core made by extrusion molding of pigments, waxes and resins, and boron, talc, mica, and clay minerals are formed...

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Performance required for Spare Leads

1. Be able to write thick The grain of the core is fine, and it adheres to the fiber of the paper snugly, and settles. 2. Strong There is no core break during writing. 3. Smooth There is no catch...

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The Difference between water-based ink and oil-based ink

Products using water as the main solvent are water-based inks, and those using organic solvents are oil-based inks. Apparently, the water-based ink is shabby and the oil-based ink is like thick syrup....

https://www.tombow.com/en/mamechishiki/m52/

ballpoint pen for writing in space

It is possible to write in the water ballpoint pen of the pressurized type ballpoint pen pen ballpoint pen and the recently reduced but batting type....

https://www.tombow.com/en/mamechishiki/b45/