Yarn Fundamentals
An introduction to spun and filament yarns, single and plied construction, twist, and yarn count.
Materials · Yarns
Yarn index
Browse the completed Textile Index guides to yarn fundamentals, spinning, yarn types, construction, properties and testing.
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The basic vocabulary of yarn and the process that turns staple fibers into yarn.
Spinning Fundamentals
An introduction to staple-yarn spinning, cotton preparation, sliver and roving, drafting and twist, and ring, rotor and air-jet methods.
Spinning methods
Compare common ways of preparing and forming spun yarn.
Ring-Spun Yarn
An introduction to ring-spun yarn, its formation, carded and combed preparation, compact and rotor distinctions, and the limits of process-based quality claims.
Compact-Spun Yarn
An introduction to compact-spun yarn, fiber condensation before twist, carded and combed preparation, qualitative ring-yarn comparisons, and uses.
Rotor / Open-End Yarn Fundamentals
An introduction to rotor yarn, open-end terminology, yarn formation, structure, general uses and the limits of process-based comparisons.
Air-Jet Spinning Fundamentals
An introduction to air-jet yarn formation, sliver feed, core and wrapper structure, vortex terminology, and representative uses and limits.
Woolen vs Worsted Yarn
Compare woolen and worsted yarn preparation, typical structure and common uses, including the separate meaning of worsted weight.
Filament yarns
Explore continuous filament yarn and texturing.
Filament Yarn
An introduction to continuous-filament yarn, monofilament and multifilament forms, flat and textured arrangements, preparation, descriptors and uses.
Textured Filament Yarn
An introduction to textured continuous-filament yarn, false-twist and air-jet mechanisms, DTY, ATY, BCF, POY and FDY terminology, qualitative effects and uses.
Construction, properties and testing
Read yarn specifications and understand how yarns are built and measured.
Yarn Count Systems: Understanding and Converting Counts
Understand tex, dtex, denier, Nm and English cotton count, convert counts, and interpret single and plied yarn labels.
Yarn Twist — Meaning, Direction, and Amount
Understand yarn twist, S and Z direction, turns per unit length, singles and ply twist, and qualitative effects on cohesion, strength, and handle.
Single, Ply and Cabled Yarns
Understand single, plied and cabled yarn construction, folded terminology, assembly stages, ply versus filament count, twist direction and interpretation limits.
Core-Spun Yarn
An introduction to core-spun yarn construction, its basic spinning principle, material examples, covered-yarn distinction, and conditional properties.
Slub Yarn and Specialty Yarns
An introduction to slub yarn as a specialty effect, its visible structure, production principle, related terms, uses, and practical limits.
Yarn Properties and Quality
Understand yarn count, twist, tensile behavior, evenness, imperfections and hairiness, and interpret results for a stated use.
Yarn testing: what is measured and how to read results
A concise guide to common yarn measurements, report context, and the limits of interpreting one result.