Measuring Short Fiber Content Impact on Combed Rotor Yarn Tenacity
Combed rotor yarn tenacity drops 0.35 cN/tex per 1% short fiber increase, requiring combed sliver SFC by weight below 8.0% for Ne 30 strength targets.
SFC by Number
Standardized Fabric Code
A numeric designation acts as a universal reference for specific technical specifications in the textile production cycle. The sfc by number identifies the precise construction, weight, and fiber composition of a fabric batch during the quality control stage. This identifier maps back to the laboratory test results that verify compliance with safety regulations or durability requirements for garment construction.
A system of this nature prevents confusion during the transition from mill manufacture to factory cutting tables.
Verification Protocol
Quality managers use the sfc by number to audit bulk goods against approved sample swatches. The code indicates the precise weave density and yarn count validated at the initial prototyping stage. Inspectors rely on this data to ensure the finished material adheres to the technical brief throughout the supply chain.
Testing Parameters
Analytical laboratories apply the sfc by number to isolate specific fabric lots for standardized tensile strength and shrinkage assessments. Different mills produce identical physical outcomes, yet the numerical code maintains the distinction in a common database. A clear distinction exists between the raw material properties and the final performance standards assigned through this index.
Logistical Application
Accurate tracking ensures that the procurement department manages warehouse inventory through the sfc by number rather than relying on ambiguous commercial names. Shipments arrive with tags bearing these digits, allowing the garment factory to verify the material against the production order without opening every individual roll. Consistent use of this numbering prevents errors when multiple fabric variations occupy the same production facility floor.
Proper labeling ensures every bolt remains accountable within the manufacturing system.
Short Fiber Content Thresholds in Combed Cotton Rotor Spinning
Exceeding twelve percent short fiber content by number in combed cotton sliver accelerates rotor accumulation, increases wrapper fibers, and drops yarn tenacity.