Eraser

Office-pink-erasers

Benutzung eines Radiergummies

Toy Erasers

Pencil Eraser

Erasers

Eraser is a common tool used for removing marks from surfaces, most notably pencil marks from paper. Its functionality is based on the material's ability to adhere to and lift graphite, charcoal, or other removable media without damaging the surface underneath. Erasers come in various shapes, sizes, and materials, each suited to specific types of marks or surfaces.

History[edit | edit source]

The history of the eraser dates back to the discovery of rubber in the early 16th century by the indigenous peoples of Mesoamerica. However, the material's use for erasing marks did not become widespread until the 18th century. The first reported use of rubber as an eraser was by the British engineer Edward Nairne in 1770. He accidentally picked up a piece of rubber instead of breadcrumbs, which was the common material for eraser-like purposes at the time, and found it to be an effective eraser. This discovery led to the commercial production of rubber erasers. In 1858, Hymen Lipman patented the first pencil with an attached rubber eraser, further integrating the eraser into the fabric of writing and drawing tools.

Types[edit | edit source]

Eraser types vary based on their composition and intended use. The most common types include:

Rubber Erasers: Made from natural or synthetic rubber, these are the most traditional and widely used erasers. They are effective at removing pencil marks but can wear down paper if used excessively.
Vinyl Erasers: Also known as plastic erasers, they are harder and sharper than rubber erasers and can remove marks more cleanly. They are particularly useful for detailed work.
Gum Erasers: Soft and pliable, gum erasers crumble as they lift graphite from the paper, which helps preserve the paper's surface. They are often used by artists.
Electric Erasers: These are motorized erasers that rotate or vibrate to remove marks quickly and with minimal effort. They are commonly used in drafting and technical drawing.
Kneaded Erasers: Also known as putty erasers, these are pliable and can be shaped to lift off pencil and charcoal marks without damaging the paper. They are a favorite among artists for their versatility.

Materials[edit | edit source]

Eraser materials have evolved over time, from natural rubber to synthetic materials designed to improve performance and reduce costs. The main materials used in erasers include:

Natural Rubber: Sourced from rubber trees, it is the traditional material for erasers but is less commonly used today due to cost and environmental concerns.
Synthetic Rubber: Such as styrene-butadiene rubber, offers a similar performance to natural rubber but is more consistent in quality and easier to produce.
Vinyl: Polyvinyl chloride (PVC) is used in making vinyl erasers, known for their durability and clean erasing capability.
Silicone: Used in some erasers for its non-toxic and durable properties.

Environmental Impact[edit | edit source]

The environmental impact of erasers is primarily associated with the materials used in their production. Natural rubber extraction can lead to deforestation and habitat destruction, while the production of synthetic materials involves petrochemicals and can generate pollution. Efforts to mitigate these impacts include using sustainable rubber or recycled materials and developing biodegradable erasers.

In Popular Culture[edit | edit source]

Erasers have made their mark on popular culture, often symbolizing mistakes and the ability to correct them. They have been featured in art, literature, and films, sometimes taking on metaphorical meanings beyond their practical use.

Eraser Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.