![]() However, they are fairly abrasive and should be used on thicker paper as the thinner paper may be damaged. The vinyl eraser can remove deep pencil strokes from the paper and has also been found to remove ink. Although they are soft, they are firm, leave the least amount of dust behind, and they do not dry out. The vinyl eraser is often referred to as soft vinyl, plastic, drafting, or polymer rubbers. The kneaded erasers are mainly used by artists, but you need to take care that you do not leave them in the sun or hot environments, as they will lose their shape and eventually become unusable. The kneaded eraser is better for use on smaller areas where precision is required. You can then knead it back together when you are finished. If you need to continue using the eraser, you can fold the rubber into itself, or you can pull it apart and clean the residue off. The charcoal or color will then stick to the rubber, which is then lifted off the paper surface. When using this type of eraser, you do not wipe or smear it over the paper, but you take the putty rubber and press it over the area you want to erase. These rubbers are ideal for erasing charcoal, chalk, pastel colors, and even colored pencils from your paper without leaving a residue behind. The oil must be properly distributed throughout the rubber, and it can also be molded into any shape you want from a sharp point to a large lump. This type of eraser consists of carbonated rubber as well as vegetable oil, which is why you must knead it. Their main property is that they are not abrasive. These can come as very soft or rather stiff, which can make them difficult to knead. This type of eraser is just as the description describes it needs to be kneaded before you can use it. ![]() We will now explain all the different types of erasers that are available and help you to choose the right one for you. The professional artist that makes use of artist-grade drawing paper, or the person that uses a mechanical pencil, may need a special type of eraser that will effectively remove any mark that is made on a specific surface. The standard pink eraser, which we all remember from our school days, is not very effective as it damages the paper, smears, and leaves hordes of crumbs behind. It is a fact that not all erasers are formed or created equally, they come in many different types and materials, and all of them have their purpose and use. Then in 1839, the process of vulcanization was developed, and more durable erasers were able to be manufactured. The invention of rubber erasers dates back as far as the 1770s. They even used crustless bread to remove their errors. This is formed after an explosive volcanic eruption occurs, and it is a type of solid foam. 4.4 What Eraser Can Remove Colored Pencil?īefore the eraser was invented, people made use of the pumice stone.4.3 What Are the Best Erasers for Pencils?.4.1 What Characteristics Make a Good Eraser?.2 Factors to Consider When Purchasing the Best Erasers for Pencils.1.10 Summarizing the Properties of the Various Types of Erasers.B43K29/02- Combinations of writing implements with other articles with rubbers.B43K29/00- Combinations of writing implements with other articles.B43K- IMPLEMENTS FOR WRITING OR DRAWING. ![]() B43- WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES.Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Publication date Application granted granted Critical Publication of US19783A publication Critical patent/US19783A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links US19783A - Combination of lead-pencil and eraser - Google Patents US19783A - Combination of lead-pencil and eraser - Google Patents Combination of lead-pencil and eraser Download PDF Info Publication number US19783A US19783A US19783DA US19783A US 19783 A US19783 A US 19783A US 19783D A US19783D A US 19783DA US 19783 A US19783 A US 19783A Authority US United States Prior art keywords pencil lead eraser combination erasing Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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