How to test spirality of knit fabric: method, formula and real lab results
How the lab measures spirality (twist) in knit fabric after washing, step by step, with the formula, a worked example, and what…
How to test rubbing fastness (crocking) of fabric: dry and wet method and real lab results
How the lab tests colour fastness to rubbing dry and wet (ISO 105-X12), step by step, how the grey scale grading works,…
How to test pilling of knit fabric: pilling box and Martindale method, grades and real results
How the lab tests pilling with the pilling box (ISO 12945-1) and the Martindale (ISO 12945-2), step by step, how the grading…
How to test colour fastness to washing: ISO 105-C06 method, grading and real results
How the lab tests colour fastness to washing with a multifibre strip, step by step, how the grey scales are read, and…
How to test colour fastness to perspiration: acid and alkaline method and real results
How the lab tests colour fastness to perspiration (ISO 105-E04) in acid and alkaline solution, step by step, how it is graded,…
How to test colour fastness to water: ISO 105-E01 method and real results
How the lab tests colour fastness to water (ISO 105-E01), step by step, how it is graded, and what 47 real lab…
How fibre content is tested: identification, chemical separation and real results
How the lab identifies fibres and measures the blend ratio (ISO 1833, AATCC 20A), step by step, with a worked example, the…
How to test bursting strength of knit fabric: method, test area and real results
How the lab tests bursting strength of knit fabric (ISO 13938-2), step by step, with the formula, a worked example, why the…
How to test colour fastness to light: xenon arc method and blue wool grading
How the lab tests colour fastness to light with a xenon arc lamp and blue wool references (ISO 105-B02), how the 1…
How to test the pH of fabric: water extract method and limits
How the lab measures the pH of a fabric’s water extract (ISO 3071), step by step, why buyers ask for pH 4.0…