Thread is regarded as a routine production material in the field of garment making. But the state of it can make a definite impact on stitch quality, machine efficiencies, garment looks, and production costs. If the shape of a piece of thread is not preserved correctly or handled carefully, it might have issues even if it is of good quality.
Thread does not respond well when it’s exposed to, for example, high temperatures, humidity, sunlight, dust, or chemicals. Inappropriate handling may cause the thread to become contaminated, weakened, or tangled or have thread performance changes. It is therefore essential to have proper thread organization and handling in apparel factories to ensure quality consistency and minimize sewing faults.
Why Proper Thread Storage Matters
Sewing thread is produced to develop certain ability properties like tensile strength, extension, abrasion resistance, and dimensional stability. Such properties can be changed by suboptimal storage conditions.
Exposure to excess moisture, hot temperatures or direct sunlight, and dust can adversely affect the performance of thread. The damaged or contaminated thread can cause skipped stitches, thread breakage, uneven seams, machine downtime, and rejection rates.
Some useful tips for factories:
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Maintain thread retention & elasticity.
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Minimize thread snags while sewing.
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Keep uniformity in the stitch.
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Preserve the color and integrity of thread.
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Minimize material waste.
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Improve inventory control.
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Ensure the lifespan of thread.
Good storage is thus a quality control process and a cost-saving activity.
Maintain the Right Temperature and Humidity
Environmental control is one of the most crucial issues involved in thread storage. Most sewing threads work best if they are kept until they are used in fairly controlled, rather than extreme, temperature and moisture changes.
Some fibers and finishes can be impacted by high humidity, and low humidity can make handling easier and may lead to static electricity. The deterioration of any thread material or finishes could also be more rapid at high temperatures.
Stable storage conditions should be maintained in factories, and thread should never be stored close to a source of heat or a boiler. Also, keep sudden changes of environment to a minimum.
Where possible, factories can use temperature and humidity monitoring systems to identify unfavorable conditions before they affect production materials.
Protect Thread from Direct Sunlight
Direct sunlight can gradually affect thread, particularly colored threads (like trilobal polyester thread). The exposure to UV radiation can fade, and in some instances, valuable fiber and thread structure can cause degradation.
Materials should, hence, be kept out of direct sunlight. Ideal storage rooms are well-lighted and, if required, have rooflights.
If color is of a significant concern, the protection should be provided to color-sensitive threads, particularly for visible decorative stitching or garments where color consistency is a high priority.
Keep Storage Areas Clean and Dust-free
Dust and dirt are safe-seeming but can pose serious issues in sewing operations. An infected thread can spread particles to clothes, imbalance the machine components, and prevent proper thread flow through the machine.
Storage areas for threads should be:
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Clean and dry
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Well-organized
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Protected from excessive dust
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Oil-free and chemical-free
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Separate from food, waste, and non-food items
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Regularly inspected and cleaned
Ideally thread should stay in its original packaging until it is needed for production. This will add further protection against dust and physical damage.
Store Cones and Spools Correctly
Physical handling is just as important as environmental conditions. Cones may be damaged if thrown, dropped, or improperly stacked, affecting the way thread unwinds in sewing.
Thread cones and spools are to be placed safely on a special shelf or rack. Delicate packages of thread are not suitable for heavy items.
Thread (flame-resistant sewing thread) should come out of storage systems, such as cones, without disturbing or damaging other cones. Good spacing also minimizes the chance of falling and entanglements.
The thread shouldn’t be resting on the ground anywhere. Storing it on the floor allows dust, moisture, water leakage, and accidental contact to have an impact on it.
Use a First-In, First-Out System
Sock rotation is one of the key factors in logic. For this reason, factories ought to make use of a very first-in, first-out (FIFO) procedure for whatever it’s suitable for, meaning that the most current inventory would be depleted first prior to the previous one.
The thread package should be easy to identify and contain the following information:
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Thread type
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Fiber composition
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Color or shade number
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Thread size
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Batch or lot information
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Supplier details
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Date of receipt
Correspondence of labels with parts assists with inventory control and prevention.
Handle Thread Carefully During Production
Even after the thread is removed from the storage room, it can be damaged. During transfer to production areas, workers should exercise care in the handling of cones and spools.
Never pull thread packages over uneven surfaces or near sharp objects. Also, when working with thread, workers should try to avoid unnecessary contact with the thread, especially with dirty, oily hands.
Dropped, crushed, contaminated, or otherwise visibly damaged cones should be checked prior to using them on a sewing machine. Damaged thread may be available, but that doesn’t mean it should be used, as that can lead to more waste as the machine stalls or garments are faulty.
Keep the Thread Out of Chemicals and Contaminants
Chemicals, dyes, cleaning agents, oils, and other materials that have the potential to contaminate should not be kept in the same location as thread. Thread can be compromised by contaminated levels, no matter how low the contamination is.
Areas for designating different types of safe storage areas should be created in the factory, and it is advisable not to store thread in close proximity to chemical processing or other maintenance activities.
In addition, care in the handling of chemicals used for pest control and cleaning should be taken around the thread storage areas to avoid incidental contamination.
Match Thread Storage with Production Planning
Efficient thread storage goes beyond just “preservation,” and it is about “reach. It is important to be able to find and retrieve the appropriate production team without any wasted searching time.
Configuring a system of storage that organizes threads into groups can be done based on the following:
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Color
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Thread size
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Fiber type
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Application
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Customer or production order
Traceability can also be enhanced using digital inventory systems, which can monitor stock levels, batch numbers, and usage. This is to avoid overstocking and shortages.
Train Employees in Thread Handling
With the best storage and retrieval system the world has to offer, the first problem that arises is ineffective use by employees. The workers should know about the importance of thread protection and how handling it wrong impacts the production quality.
It is recommended that proper lifting, storage, labeling, inventory rotation, inspection, and transfer practices be taught as part of the training. These practices can be made easier to adhere to consistently with simple SOPs.
Conclusion
While they might seem like mundane tasks, handling and storage can significantly impact the efficiency and quality of apparel production. Providing the proper environment, shielding thread from light and contamination, and arranging and treating cones carefully will help maintain thread performance from the warehouse to the sewing machine.
An efficient thread storage system minimizes breaks, downtime, waste, and defects in quality. Perhaps more importantly, it brings uniformity in production batches!