Water Repellency Spray Test Setting It Correctly on a Tech Pack
Water Repellency Spray Test should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
how well water beads on the surface. Working figures for Water Repellency Spray Test normally sit around grade 4 to 5 target in mainstream production. Note AATCC 22 spray test on the tech pack so nobody tests against an older revision.
Target value
Open the specification at grade 4 to 5 target, adjusted to the end use. Record elastane content alongside Water Repellency Spray Test, because blends shift the measured value. A result outside grade 4 to 5 target usually points to process drift rather than to the fibre itself.
Method line
Always pair the target with AATCC 22 spray test so the mill and the laboratory test the same way. Keeping reference values for Water Repellency Spray Test lets suppliers quote without extra sampling rounds. Ask for conditioning details together with AATCC 22 spray test, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Water Repellency Spray Test normally sit around grade 4 to 5 target in mainstream production. Note AATCC 22 spray test 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 Water Repellency Spray Test, because blends shift the measured value. A result outside grade 4 to 5 target usually points to process drift rather than to the fibre itself.
