History The discovery of Pencil and Eraser part 2

Identity

Pencils are distinguished according to composition. Letter B informs thickness (boldness), which means more grafitnya content. While the letter H inform violence leadnya composition, which means more clay content. Pencils with tandaF mean composition is ideal for diraut up to a maximum kurtosis. While the numbers in front of the letter shows the level of violence thickness or composition of a pencil. For example 2H going harder than H, or 2B will be softer and thicker than B. HB pencil has a second means the hardness and thickness.

Color pencil to show the area of production. Factories in North America gives the color yellow, Germany and Brazil gave green. India and some Asian region provides a black and red color. Switzerland gave a red color. While the British gave yellow and black. Most of these color standardization created manufacturer Faber-Castell. Yet many manufacturers who do not follow this standard.

Eraser

Eraser (also called SetIP) is one of stationery supplies which is a soft rubber that is able to eliminate the mark produced with a pencil.
An eraser.

Rubbery eraser, and is often colored white or black (although it was also found brown or pink to beautify the appearance of appropriate use of technology). There is a pencil that comes with an eraser on the end. Removal expensive may have a vinyl or plastic material in addition to the rubber.

Type

The kind that are often found on the eraser is usually colored pink or red with characteristic easy sticky. This type is good enough to erase most of a pencil inscription, although it tends to pollute and damage the paper if used too often. In addition, many remaining rubber to be cleaned. Time is often littering the paper if left attached.

The kind that are popular among artists is art gum eraser, made from rough textured soft rubber. This type is suitable to remove large areas in one sweep without damaging the paper. But this left many remaining eraser eraser and not very accurate. Use too much just to produce a yellowish color on paper. Art gum eraser or kecokelat usually dark-brown.

Uli eraser, better known in English as a kneaded eraser, also popular among artists. Removal of this type made of gray and resembles a dough or glue. The surplus is not leaving the rest of the eraser so that last longer than other erasers. Graphite and clay particles pulled by rubber dough so that more accurate and does not leave any traces. Removal is widely used to give effect to burnish or splashing water. The downside is the slightly sticky feeling in the hand and easy to melt at high temperatures.

Eraser has a texture like soft vinyl plastic and remove features that are similar to ordinary rubber eraser. It's just a little softer and stronger, and hence not easy to damage the paper and convenient to use. Usually white vinyl eraser and easy to look dirty to the touch.