As a professional makeup brush factory, quality is our life. To ensure the brush quality, before assembly, we have strict inspection process on bristle, ferrule and handle.
Here we would like to share our inspection methods and standard on the wooden handles, so that customers can fully understand our quality level and be at ease during custom makeup brush OEM from us.
QC of Wooden handle
Inspecting according to:
• Inspection Sheet
•Production Instruction Sheet
•Customers' Approved Samples/Benchmark
1. Dimension
•vernier caliper
•≥￠11.5mm: Tolerance:±2mm in length,-0.5mm in biggest diameter,+0.5mm/-0.3mm in handle body
•≤10.0mm: Tolerance:±2mm in length,-0.3mm in biggest diameter,+0.3mm/-0.2mm in handle body
2. Material：
•Visual checking: see if the same as benchmark or samples
3. Apperance:
•Color：Compare with sample/finished benchmark, if the same, OK •Scratch：No more than 3 scratches within 3mm diameter is acceptable; •Cleanness：No dirty within 30cm from inspector sight
4. Performance
Humidity test: Test with hygrometer, humidity within 7% - 15% is acceptable
Printing falling：
• Use 3M adhesive tape to test the logo surface and painting surface for 3 times
• Wet the cotton cloth with alcohol, and slightly wipe the logo surface for 3 times, light color left on cotton surface is acceptable
• No letter missing, no letter breaking, no indistinct letter
