Compression Level What Improves It and What Damages It
Practical actions that raise or lower Compression Level during knitting, dyeing, finishing and garment care.
Actions that help
Correct construction choice and controlled setting improve performance, and they also keep the fabric near light 8-15 mmHg, firm 20-30 mmHg. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes on the tech pack so nobody tests against an older revision.
Actions that damage it
Excess heat, over-aggressive softener and missing washing-off steps all reduce results. Record elastane content alongside Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.
Finishing influence
RAL-GZ 387 compression classes results shift noticeably after finishing, so retest after the final process rather than before. Keeping reference values for Compression Level lets suppliers quote without extra sampling rounds. Ask for conditioning details together with RAL-GZ 387 compression classes, since both affect the reading.
Garment care influence
Home washing temperature and drying method change performance over the first ten cycles. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes on the tech pack so nobody tests against an older revision.
Summary
Keep process settings documented so repeat orders land inside the agreed range every time. Record elastane content alongside Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.
