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25 March 2017
Afternoon Sedition

"Pink is my favorite crayon"

Crayola Raw Materials Tests, Orange Test Sheet

Crayola Raw Materials Tests
Binney & Smith Inc., circa 1970s

Engineering documents can be amazing pieces of art. Just consider these test sheets for the lowly crayon. They may be made by a machine, but there are a lot of contemporary artists who could learn a lot about technique from them.

In 1885, Edwin Binney (1866-1934) and C. Harold Smith (1860-1931) formed Binney & Smith Inc. The duo began producing Crayola Crayons in 1903.

This data sheet was used in developing a new formula for the orange crayon. The objectives of the test were to improve the crayon quality - better color and marking properties - while reducing the cost of production. The list of criteria on the left side of the color sample shows the range of tests for each crayon formula.

Crayola Raw Materials Tests

Crayola Raw Materials Tests, Orange Test Sheet

Crayola "Crayon Testing Machine " test,
Binney & Smith Inc., circa 1970s

After World War II, Binney & Smith established a Research and Development Department to test and improve their crayons and other products. The Crayon Testing Machine (CTM) test measured a crayon’s ability to lay down color smoothly and evenly. Crayons were subjected to a number of different surfaces and coloring styles to assure their versatility and durability.

Crayola Raw Materials Tests

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