Applying Section XI Note 7 Criteria to Borderline Linen Goods
Applying Section XI Note 7 requires auditing mill edge finishes, drawn threads, and cutting geometry to prevent high-duty Chapter 63 customs reclassifications.
Lockstitch Verification
Seam Durability
A quality control inspection process in garment assembly examines the integrity and tension of sewing yarns used to join textile panels together. Through a systematic lockstitch verification, supervisors in finishing facilities ensure that the interlocking yarns of linen trousers or shirts are balanced and secure. Because flax fibers are inelastic and prone to fraying at raw edges, the quality of the stitch directly influences the durability of the finished garment under wear and washing.
This verification is performed at designated check stations before the completed apparel is packed for shipment.
Examination Methodology
The physical evaluation involves counting the stitches per inch and assessing the tension balance between the upper needle yarn and lower bobbin yarn. An improper balance can cause puckered seams or broken yarns when the linen garment is stretched. Inspectors use a graduated magnifying lens to measure stitch frequency and execute manual pull tests on sample seams to verify their strength.
If the stitch frequency or tension does not meet the buyer’s specifications, the sewing machines on the line are recalibrated to prevent a larger batch failure.
Production Adjustment
Detailed inspection reports register the results of these seam assessments for each production line. This document is required to clear the final quality gate before the goods receive their packing list and export certification.