Shrinkage Evaluation
Standardized laboratory protocols for measuring the size variations of textile fabrics after washing and drying protect consumers from shrinking garments. Performing the ISO 5077 dimensional change test allows apparel manufacturers to predict how a fabric will behave during domestic laundering. This test applies to both woven and knitted structures.
Process Execution
Marking fabric specimens with precision templates before washing enables accurate measurement of dimensional shifts. In the ISO 5077 dimensional change procedure, the fabric undergoes a specified washing cycle and is then dried under controlled conditions. Technicians calculate the percentage change in length and width.
Fabric Adjustment
Anticipating the shrinking behavior of fabrics allows pattern makers to adjust garment dimensions accordingly. If the ISO 5077 dimensional change test shows high shrinkage, designers add a shrinkage allowance to the pattern files. This correction ensures that the finished garment fits correctly after the first wash.
Quality Inspection
Testing incoming fabric rolls before cutting prevents the assembly of garments that will distort after washing. Quality assurance teams use the ISO 5077 dimensional change data to approve or reject fabric shipments from the dye house. Shipments that exceed the agreed shrinkage tolerances are returned to the mill for further stabilization treatment.
This control step maintains the brand’s fit standards.
