Carding

Carding is a textile manufacturing step in which raw fibers are combed and aligned by passing them between rotating cylinders covered in fine wire teeth. In asbestos textile plants, carding machines processed raw asbestos fiber into a continuous web or sliver that could later be spun into yarn for use in cloth, tape, rope, and insulation products. The process was notoriously dusty, releasing enormous quantities of airborne asbestos fibers into the workplace.

Origin

The term comes from the Latin carduus, meaning thistle, because the earliest carding tools used dried teasel thistle heads to comb wool. Mechanical carding machines were developed during the Industrial Revolution in the late 18th century and were adapted to asbestos fiber processing in the mid-1800s as asbestos textile manufacturing expanded in England and the United States.

Significance in Asbestos Context

Carding rooms were among the dustiest locations in any asbestos textile mill, and workers who carded asbestos, or who simply worked nearby, experienced extraordinarily high exposures, often without respiratory protection. Plants such as Raybestos-Manhattan, Johns-Manville's textile operations, and the Southern Asbestos Company in Charlotte, North Carolina employed many carding operators who later developed asbestosis, lung cancer, and mesothelioma. Industrial hygiene surveys from the 1930s through the 1970s repeatedly documented fiber counts in carding areas far above what was known to be hazardous, and internal company memos acknowledging these conditions are often central evidence in textile-worker cases. If a patient or family member worked in or near a carding department, that job history can directly support both diagnosis attribution and identification of responsible manufacturers.

Example Sentence

His occupational history showed twelve years as a carding machine operator at the Charleston textile plant, which his expert identified as the primary source of his mesothelioma exposure.

Related Terms

Asbestos Textile Mill, Raybestos-Manhattan, Johns-Manville, Industrial Hygiene, Occupational Exposure, Fiber Release

Notes

• If you or a loved one worked in an asbestos textile plant, request employment records, union records, and Social Security earnings statements to document job titles and dates in carding, spinning, or weaving departments.
• Ask coworkers or family for details about specific machines, departments, and shift assignments. These details help experts reconstruct exposure and identify product lines.
• Preserve any company newsletters, photographs, safety bulletins, or training materials from the plant; these often establish what the employer knew about dust hazards.
• Textile-worker claims frequently qualify for multiple asbestos trust funds (e.g., Raybestos-Manhattan, Johns-Manville, H.K. Porter); a thorough work history is essential to identify all possible recoveries.