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更新日期：2017-09-12
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A pencil is a writing implement or art medium constructed of a narrow, solid pigment core inside a protective casing which prevents the core from being broken and/or from leaving marks on the user’s hand during use. Pencils create marks by physical abrasion, leaving behind a trail of solid core material that adheres to a sheet of paper or other surface. They are distinct from pens, which instead disperse a trail of liquid or gel ink that stains the light colour of the paper by absorption.
Graphite came into widespread use following the discovery of a large graphite deposit in Borrowdale, England in 1564. Appreciated for leaving a darker mark than lead, the mineral proved so soft and brittle that it required a holder. Originally, graphite sticks were wrapped in string. Later, the graphite was inserted into hollowed out wooden sticks and, thus, the wood-cased pencil was born. Nuremberg, Germany was the birthplace of the first mass-produced pencils in 1662. Spurred by Faber Castell (established in 1761), Lyra, Steadtler and other companies, an active pencil industry developed throughout the 19th century industrial revolution.
A pencil case or pencil box is a container used to store pencils. A pencil case can also contain a variety of other stationery such as sharpeners, pens, glue sticks, erasers, scissors and rulers. Pencil cases can be made from a variety of materials such as wood or metal. Some pencil cases have a hard and rigid shell encasing the pens inside, while others use a softer material such as plastic, leather or cotton. Soft versions are typically fastened with a zipper. Decorated versions are popular with schoolchildren depending on age and gender.
