How Factories Find Broken Needles in Garments?

For garment manufacturers, pre-shipment quality inspection is not only about checking appearance, size, labels or packing. It is also related to consumer safety. During sewing, needles may break because of material thickness, operation conditions or machine status. If broken needle pieces or other metal fragments remain inside garments, especially children’s wear, baby clothing, underwear or close-fitting products, they may create puncture or cut risks. They may also lead to returns, recalls and brand quality disputes.

Manual inspection is still important. Inspectors can check sewing, appearance, stains, size, trims and packing issues. However, if metal fragments are hidden inside fabric layers, seam allowances, pockets, linings or folded products, visual checking or touching alone cannot build a stable and traceable inspection process. For factories that need pre-shipment safety confirmation, needle detection equipment is not an extra accessory. It is a practical part of quality management.

Manual Inspection Checks Appearance while Needle Detection Checks Hidden Risk

Manual quality inspection has clear value. Inspectors can check whether sewing is clean, stitches are skipped, stains appear, size is correct, trims are complete and packing meets the required standard. But broken needles and metal fragments are different.

Metal pieces can be very small. They may be hidden inside fabric layers, cuffs, pockets or linings. Once products are folded or packed, full checking by hand becomes even harder. When factories handle large volumes every day, relying only on touch is difficult to keep consistent.

More importantly, brand customers may require not only inspection, but also records of inspection quantity, rejected products or pre-shipment quality data. In this situation, manual inspection alone may not meet traceability needs.

Manual inspection and needle detection do not replace each other. They confirm different quality points. Manual inspection checks appearance, size, trims and functions. Needle detection checks needle pieces and metal contamination before shipment.

Broken Needle Incidents Affect Both Brands and Factories

Broken needle risk is not an abstract issue. There have been public recalls involving children’s wear or baby clothing because sewing needles were found in products. For example, Marks & Spencer previously recalled children’s clothing after sewing needles were found in some garments. Bonds Newbies baby clothing in Australia was also recalled because products may have contained sewing needles. These cases show that even when the issue appears in a small number of products, safety risks in children’s wear and close-fitting apparel can lead to large recalls and quality investigations.

For garment factories, broken needle risk can mean more than rejecting one product. Customers may require a full batch recheck, corrective action report, production record review or supplier quality investigation. Trust in future cooperation may also be affected. Needle detection is therefore not just a step where a garment passes through a conveyor. It is part of pre-shipment safety management.

Pre-Shipment Inspection May Need More Than One Type of Equipment

Pre-shipment quality management usually depends on product type, customer requirement, production volume and packing method. Not every factory needs every machine, but factories should understand what each inspection step is for. Manual appearance inspection mainly checks sewing, stains, damage, size, labels, trims and packing condition.

Handheld needle detectors are suitable for local checking, rechecking repaired products or assisting abnormal product handling. They are flexible, but if a factory handles large volumes or needs fixed inspection records, handheld equipment alone may not be enough.

Conveyor needle detectors are more suitable for high-volume garment inspection. When products pass through the conveyor, the machine detects metal contamination. If an abnormality is found, the system can alarm and stop, reverse or trigger related handling procedures.

After products are packed into cartons, the inspection purpose changes. Carton metal and weight inspection mainly confirms whether scissors, paper clips or larger metal objects remain in the carton. It can also check whether carton weight is abnormal, reducing the risk of missing items, extra items or packing mistakes.

Single-garment broken needle detection and carton-level shipment checking should therefore not be treated as the same task. Factories should arrange suitable inspection points according to product risk and shipment process.

Conveyor Needle Detection Makes the Process More Consistent

For garment factories with higher production volume or fixed pre-shipment safety requirements, conveyor needle detectors are a common solution. They can be used for garments, children’s wear, underwear, home textiles and other products that need metal contamination checking. Factories can place the inspection station before packing or at a defined pre-shipment stage, allowing each product to pass through the detector.

OSHIMA ON-688CD6S／ON-688CDD6S needle detectors provide three levels of iron ball detection sensitivity, which can be set according to product and inspection needs. When the system detects metal contamination, it can alarm and trigger conveyor reverse, preventing abnormal products from continuing to the next process.

However, higher sensitivity is not always better. If a product includes metal accessories, special fabric, thickness variation or different packing status, the factory still needs to set suitable inspection conditions according to product and customer standards. Daily testing and calibration should also be part of the process. Equipment supports inspection, but process setting and operation management are just as important.

Some Products May Need Turning and Rechecking

Some garments or textile products may need checking from more than one direction. If a factory wants the product to be turned after the first inspection and then enter another checking flow, a turning device can be evaluated together with needle detection equipment.

Turning and rechecking can reduce repeated manual flipping and make the inspection station easier to include in a continuous line. It also supports two-side inspection arrangements for specific products. However, turning devices are not standard requirements for every needle detection line. Whether they are needed depends on product thickness, folding method, inspection process and available space.

After Carton Packing Weight and Larger Metal Risks Also Matter

After products are packed into cartons, the factory may need to check not only small broken needles inside garments, but also whether tools or metal objects remain in the carton and whether the packing quantity is correct.

For example, scissors, paper clips or other metal parts left inside a carton can create shipment risk. Abnormal carton weight may suggest missing products, extra products, missing accessories or packing mismatch.

OSHIMA OMW-600／800／1000 integrated needle detection and checkweighing equipment can check carton products for metal contamination and weight. Reject devices can also be added to separate abnormal cartons from the normal flow.

This equipment serves a different purpose from single-garment needle detection. Single-garment detection focuses on small metal fragments inside the product. Carton inspection focuses more on shipment and packing confirmation. Factories can use these steps separately or integrate them according to customer quality requirements.

Scanning and Sorting Make Inspection Results Easier to Trace

If a factory completes inspection but does not record product batch, inspection result or abnormal handling information, quality management remains limited to one-time confirmation. When scanning, sorting and data recording are added to the line, the factory can trace product or carton barcodes, pass and abnormal records, returned or rechecked products, and quality confirmation status by order or batch.

OSHIMA barcode applications can support 1D and 2D barcodes, moving-object reading, data storage, export and report generation. They can also work with related quality control equipment. For brand OEM production, export orders or factories that need quality records, this data supports internal tracking and provides clearer evidence when responding to customer questions or internal reviews.

QC-ONE Is Configured by Need Not Installed All at Once

For some factories, one conveyor needle detector may be enough for pre-shipment metal contamination checking. But if product types, production volume, packing methods or customer requirements are more complex, the factory may also need to manage two-side checking, carton weight, product identification, abnormal sorting and inspection data.

OSHIMA refers to this type of configurable pre-shipment quality inspection solution as QC-ONE. The core idea is not that every factory must install a full line at once. It is to choose the necessary inspection and management modules based on product risk, inspection purpose, volume and traceability needs.

Factories that are just beginning to build needle detection procedures can start with single-product metal contamination checking. Factories that already have fixed inspection steps and want stronger packing, traceability and abnormal sorting management can further evaluate checkweighing, scanning, sorting and data integration. The purpose of equipment configuration is not to increase the number of automated machines. It is to build a clearer, repeatable and traceable pre-shipment quality process.

Make Pre-Shipment Quality Control Clearer and More Traceable

Manual quality inspection remains essential in garment manufacturing. But for broken needles and metal contamination hidden inside garments or packing, visual inspection and touching alone cannot build a stable and traceable safety inspection process.

For children’s wear, close-fitting apparel, branded OEM production or factories that need to keep quality records, needle detection equipment helps confirm metal contamination risk before shipment. If the factory also needs to manage carton weight, product identification, abnormal sorting and inspection records, a more complete quality inspection setup can be evaluated according to line conditions.

OSHIMA provides solutions ranging from handheld needle detectors, conveyor needle detectors, turning devices, checkweighing, barcode scanning and abnormal sorting. The configurable pre-shipment quality inspection setup is referred to as QC-ONE.

The value of these machines is not to claim that all risks can be completely eliminated. Their value is to help factories build a clearer, executable and traceable pre-shipment quality process. When manual appearance inspection, needle detection, weight checking, scanning and abnormal sorting work together according to product needs, pre-shipment quality management becomes more stable.