Reflective Print Setting It Correctly on a Tech Pack
Reflective Print should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
glass bead or silver layer for visibility. Working figures for Reflective Print normally sit around above 100 cd/lx/m2 retroreflection in mainstream production. Note EN ISO 20471 retroreflection on the tech pack so nobody tests against an older revision.
Target value
Open the specification at above 100 cd/lx/m2 retroreflection, adjusted to the end use. Record elastane content alongside Reflective Print, because blends shift the measured value. A result outside above 100 cd/lx/m2 retroreflection usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with EN ISO 20471 retroreflection so the mill and the laboratory test the same way. Keeping reference values for Reflective Print lets suppliers quote without extra sampling rounds. Ask for conditioning details together with EN ISO 20471 retroreflection, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Reflective Print normally sit around above 100 cd/lx/m2 retroreflection in mainstream production. Note EN ISO 20471 retroreflection on the tech pack so nobody tests against an older revision.
Approval step
Approve the result on pre-production bulk rather than on development fabric only. Record elastane content alongside Reflective Print, because blends shift the measured value. A result outside above 100 cd/lx/m2 retroreflection usually points to process drift rather than to the fibre itself.
