Pencil, a seemingly ordinary stationery, has a long and fascinating history. The core material inside is mainly composed of graphite and clay. Since its discovery in the 16th century, people have become infinitely curious about the production process and materials of pencils. In particular, the discovery of graphite in Britain has become an indispensable part of the history of pencils. How precious is this?
In 1565, an extremely pure graphite was first discovered in the Borrowdale area of Cumbria, England, which became the only large-scale solid graphite deposit in the world.
This discovery not only overturned the understanding of graphite at that time, but also triggered a long-term monopoly on pencil production. In that era when chemistry was not yet mature, people thought that graphite was a form of lead, so they called it "plumbago". As the properties of graphite are better understood, the value of this material is becoming increasingly apparent.
As the demand for pencils grows, the mining and utilization of graphite becomes very important. Initially, graphite was in strips wrapped in rope or sheepskin for stability; later, as manufacturing technology improved, two pieces of wood were cut to shape, the graphite was sandwiched between them and glued. This technology is still used today.
Due to the softness of graphite, it requires a certain amount of covering to avoid breaking, which is why the concept of a wooden casing is so effective in protecting the pencil core.
In 1795, Frenchman Nicolas-Jacques Comte invented the technique of mixing powdered graphite with clay, which not only improved the durability of pencils, but also improved the hardness of pencils. With the mixing of different proportions, the pencils manufactured can have different hardness and texture, which is of great help for writing and drawing.
The pencil industry in the United States started late. After the independence of the United States in 1776, the early colonists mainly relied on pencils from Europe. But with the advancement of the Industrial Revolution, the United States gradually began to produce pencils independently. Among them, the wooden pencil made by William Muno in 1812 became a milestone in the American pencil industry.
"In the innovation of pens, automated production technology has brought a qualitative leap in the production of pencils, causing the price of pencils to drop significantly and becoming popular among thousands of households."
Today, more than 14 billion pencils are produced worldwide each year, most of which are made of cedar, a wood that is not only affordable but also has a good writing texture. However, as environmental issues intensify, the recycling and reuse of wood has become increasingly important. Switching to more sustainable methods, such as using Pulai wood, has become an option for many environmentalists.
In the long history of pencils, the discovery of graphite in Britain undoubtedly injected infinite value and charm into this tool. Looking back at the evolution of pencils and the preciousness of the material, one can't help but wonder: in what direction will pencil manufacturing develop in the future, and will it still rely on this precious graphite material?