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Carding

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Carding is a fundamental mechanical process used in textile production. It serves to disentangle, clean, and intermix raw fibres. This process transforms messy clumps into a continuous web or a thick strand called a sliver.

Carding llama hair
Carding llama hair

Once carded, these fibres are ready for subsequent processing into products like cotton, batting, felt, or various types of yarn. Carding is also a vital method for creating blends. By passing different colours or types of fibres through the machine, they become a homogeneous mix. This ensures the final material is even and consistent.

The core mechanism of carding involves passing fibres between surfaces that move at different speeds. These surfaces are covered in card clothing. Card clothing consists of a sturdy, flexible backing with closely spaced metal pins embedded in it.

William Tatham Breaker Carding engine
William Tatham Breaker Carding engine

As the fibres move between these pins, the mechanical action breaks up unorganized locks and clumps. The pins then align the individual fibres so they are parallel to one another. In a drum carder, a smaller roller called a licker-in meters the fibre onto a larger storage drum. Because the rollers move at different relative speeds, they pull the fibres straight. This results in an orderly mass of fibres known as a batt.

There are several ways to perform carding depending on the scale of production. Hand carding is often used by artisans or hand-spinners. This involves using rectangular paddles called hand cards to brush wool between them.

Rolag
Rolag

For home use, many people use a drum carder. This is a simple machine with two rollers covered in card clothing. Larger industrial operations use massive machines that can take up an entire room. These large machines often use many drums to process the fibre. They may also use intervening cross-laying to even out the load as the fibre progresses through the system.

The history of carding stretches back centuries. The word itself is derived from the Latin term for a thistle or teasel. Originally, people used dried vegetable teasels to comb raw wool.

Dhunuri Cotton-Carder India 1774-1781
Dhunuri Cotton-Carder India 1774-1781

Science historian Joseph Needham notes that bow-instruments for textiles may have originated in India. The earliest evidence of such devices, called kaman and dhunaki, dates to the 2nd century CE. These tools used a vibrating string to loosen fibre texture. By the 18th century, English wool was being carded with hand cards in a two-stage process of working and stripping.

Technological advancement changed the industry forever. In 1748, Lewis Paul of Birmingham invented two hand-driven carding machines. While his first attempt with a flat table failed, his second design used wire slips around a cylinder. Daniel Bourn obtained a similar patent that same year. Later, inventors like Richard Arkwright and Samuel Crompton improved these designs.

Jamieson wool Shetland
Jamieson wool Shetland

By 1834, James Walton invented the first practical machines to use a wire card. His combination of wire cards and layers of cloth and rubber became the industry standard. This led to the rise of major manufacturing hubs like the Spen Valley.

Industrial carding has significant economic and geographic impact. By 1893, the Spen Valley in England was recognized as the card cloth capital of the world.

Quilt making 04
Quilt making 04

This region contained at least 11 card clothing factories by 1838. Even as industries changed, some companies maintained long histories. For example, Garnett Wire Ltd. dates back to 1851, and Joseph Sellers & Son Ltd. was established in 1840. In North America, the town of Leicester, Massachusetts, became a major center. By the 1890s, it produced one-third of all hand and machine cards in the region.

Carding is just one stage in a complex sequence of textile preparation. In cotton manufacturing, it is often part of a four-step process including willowing, lapping, carding, and drawing.

Catalonia Terrassa mNATEC CardaObridora
Catalonia Terrassa mNATEC CardaObridora

Willowing loosens the fibres, while lapping removes dust to create a flat sheet. After carding creates a sliver, the drawing process combines multiple slivers into one. This increases the quality and consistency of the material. Repeated drawing allows for finer counts to be spun. Eventually, these fibres are turned into rovings, which are thin enough to be used in the final spinning process.

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🖼️ Images & Media (10)
File:Jamieson wool Shetland.jpg
Jamieson wool Shetland.jpg
File:Muhammad Ainul - Howrah 2011-12-11 00914.jpg
Muhammad Ainul - Howrah 2011-12-11 00914.jpg
File:William Tatham Breaker Carding engine.jpg
William Tatham Breaker Carding engine.jpg
File:Dhunuri Cotton-Carder India 1774-1781.jpg
Dhunuri Cotton-Carder India 1774-1781.jpg
File:Catalonia Terrassa mNATEC CardaObridora.jpg
Catalonia Terrassa mNATEC CardaObridora.jpg
File:Catalonia Terrassa mNATEC Pentinadora.jpg
Catalonia Terrassa mNATEC Pentinadora.jpg
File:Rolag.jpg
Rolag.jpg
Rhof-kardierenSpinnenStricken.ogv
File:Quilt making 04.JPG
Quilt making 04.JPG
File:Carding llama hair.jpg
Carding llama hair.jpg
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