Tecnology project

technology project the eraser and the cutter

Empezar

index

Metodology

uses

Explanation of the eraser

Advcantages

materials

Disadvantage

Thanks

the erasers

Materials These art materials are made from polyvinyl chloride mixed with calcium carbonate to neutralize any hydrogen chloride produced by the aging of PVC. Pthlalate plasticizers are mixed with the vinyl to maintain a soft and flexible eraser.

Metodology

The eraser will be made of PVC And these materials will help to remove the pencil or color in drawings, details thanks to its flexibility and its softness to cleanly remove what we want and the other have a blade to have a better remove of the pencil and colors and clean the eraser.

the second eraser has a small blade that removes the rest of the eraser so that it does not smudge the sheet or ruin your drawing.

explanation of the 2 eraser

the first eraser would be a common vinyl eraser which would be more usable and more economical for students or those just starting to draw.

Vinyl erasers: They are more compact and are made of different polymers. Some contain PVC (vinyl). Vinyl erasers are a popular modern choice preferred by those working with relatively fine light lines or delicate materials. These erasers remove pencil marks cleanly and without dust or residue, but do less on thick paper or heavy soft graphite marks.

Traditional eraser: These are found in school pencil cases. They are generally made of synthetic rubber and one of their qualities is that they are very soft, they fall apart with use and break very easily.

Malleable erasers: Erasers specialized in graphic arts. They are usually made of natural rubber, not synthetic. This type of erasers are sold in fine arts stores

Uses

Engineers, architects and artists looking for fine pencil lines on very smooth drawing surfaces use vinyl erasers. These tools keep the drawing surface clean without creating a rough surface. Art conservation specialists also use them to clean dirty artwork and photographs without damaging the substrate.

Advantages

Disadvantages

-Resists crumbling and does not tear the paper as a traditional eraser does. -They are easy to cut and shape with a knife, providing small pieces and sharp edges to erase fine details.

-They tend to be more expensive than traditional erasers. -Over time, they tend to pick up black residue and may need to be rubbed against a rough surface to clean them.

VS

the erasers

David Posada Jeronimo Giraldo Samuel bedoya Valeria Camargo