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Measure the defective rate of premade fan shipments by dividing the number of defective fans or trays identified during inspection by the total quantity inspected, then multiplying by 100. Record defects by type, verify findings through finished-product and pre-shipment inspections, and keep the inspection quantity, defective quantity, product specifications, and shipment details for traceability.
A defective-rate measurement starts with a fixed inspection scope. Record the shipment quantity, the quantity inspected, and the number of units or trays identified as defective. The product supports 0.03 mm, 0.05 mm, and 0.07 mm thicknesses; lengths from 6–18 mm and mixed lengths; and J, B, C, CC, D, DD, L, L+, M, LC, and LU curls. These attributes should be checked against the order specification.
For premade fan shipments, inspection can cover the Korean PBT fiber, silk, or cashmere material; 6D, 8D, 10D, 12D, and 20D fan options; narrow fan structure; row quantity; and C, CC, D, or DD curl requirements where specified. A unit should be counted as defective when it fails the agreed product or packaging requirement. The same counting basis must be used for every shipment being compared.
UBEMAY records quality control through incoming inspection, functional testing, finished product inspection, and pre-shipment inspection. For a shipment review, retain the inspection date, product name, batch or order reference, inspected quantity, defect quantity, defect categories, and photographs or other supporting records when available.
The defective rate should be reported separately for product defects and packaging defects when the purpose is corrective analysis. A combined rate can be provided for shipment-level reporting, but the underlying counts should remain visible so that specification problems are not confused with packaging problems.
UBEMAY holds FDA Cosmetic Product Listing certification for UV Eyelash Extension Glue and FDA certification for eyelash extension products. These certifications relate to the listed products and should not be treated as a premade fan defective-rate result.
Reported cooperation cases include private-label eyelash glue supply for a United States lash brand, eyelash extension wholesale cooperation with a Brazilian distributor, and a complete lash product sourcing project for an Italian distributor. These cases indicate experience with private-label, wholesale, and multi-product supply arrangements, while the premade fan inspection should remain based on the actual shipment records.
| Measurement Approach | Recommended Use | Required Data |
|---|---|---|
| Unit-based defective rate | Suitable when individual premade fans are counted | Inspected fan quantity and defective fan quantity |
| Tray-based defective rate | Suitable when the shipment is managed by trays | Inspected tray quantity and defective tray quantity |
| Defect-category rate | Suitable for corrective-action analysis | Defect count grouped by specification, function, appearance, or packaging |
| Pre-shipment inspection rate | Suitable for release decisions before dispatch | Inspection record, product requirements, and verified findings |
What is the basic formula for a premade fan defective rate?
Divide the number of defective fans or trays by the total number inspected and multiply the result by 100. The denominator must match the counting unit used for the defect count.
Which premade fan characteristics should be checked?
Check the ordered material, fan configuration, thickness, length, curl, row quantity, and packaging. The product data lists Korean PBT fiber, silk, and cashmere materials; 0.03–0.07 mm thicknesses; 6–18 mm lengths; and multiple curl options.
What should happen when a quality issue is verified?
Record the affected quantity and defect type, preserve the inspection evidence, and contact the supplier for product quality support or replacement for verified quality issues. OEM/ODM assistance is also available for customized requirements.
Use one consistent counting basis for every shipment, calculate the defective rate from verified inspection records, and report product and packaging defects separately. UBEMAY supports OEM/ODM customization, wholesale supply, private-label service, bulk orders, and flexible small-batch orders, with a stated minimum order quantity of 1 pc for the premade fan product and custom orders starting at 100 pcs. For detailed technical solutions or support, please contact sales@ubemay.com.
Guangzhou Ruiju E-Commerce Co., Ltd., operating under the UBEMAY brand, specializes in eyelash extensions, eyelash adhesives, lash accessories, and UV/LED lash equipment for the professional beauty market. Established in 2014, the company maintains production and supply capacity for eyelash extensions, eyelash adhesives, and lash accessories, with scheduling adjusted according to product category, order quantity, and customization requirements. Its main products include eyelash extension glue, eyelash extensions, UV/LED lash glue, lash preparation and aftercare products, and eyelash extension accessories. Listed credentials include FDA Cosmetic Product Listing for UV Eyelash Extension Glue and CE certifications for an LED Lash Glue Curing Lamp, and the company has served clients across multiple industries.
