Use of Thread Trimming Machine in Garment Manufacturing

Thread trimming is one of the common processes in industrial apparel manufacturing. Cutting threads from stitched garments prior to garment finishing is a non-value added but unavoidable process. Number of helpers are hired for thread trimming job in garment factories. Manual thread trimming is time consuming and all trimmed threads can't be removed permanently from garments.

To reduce trimming labour and effort to some extent, factories use UBT machines. (Sewing machines mainly, lock stitch machines come with automatic thread trimming parts aka under bed trimmer). Though you use UBT machines in sewing, you may still need to trim threads from garments to get clean garments, as other machines used for stitching the garment may not have under bed trimmer and sewing operator may not be motivated to trim threads after stitching each garment.
Thread trimming machine (Unisun)
Most factories practice manual thread cutting by hand trimmer (See below image). This manual process increases the chance of damaging garment pieces. It may increase number of defective garments in a lot. Therefore it is good to invest on automatic thread trimming machines. Other than trimming of stitching threads, one may need to trim embroidery threads and beading threads.
Two head thread trimmer (Image source:

By using automatic thread trimming machine you can reduce manpower and improve production speed of the thread trimming section. These machines are equipped with suction motor, trimming blade, table top and waste container. These machines are available in various designs. A thread trimming machines can be fixed on a table and operator can do trimming job by sitting on the chair. Operator can use flexible trimmer and trim thread tails placing garments on a flat table.

To understand more about a thread trimming machine you can watch these video.

From Youtube uploaded by Mukesh Gupta

From Youtube uploded by Suneet Kumar

Prasanta Sarkar

Prasanta Sarkar is a textile engineer and a postgraduate in fashion technology from NIFT, New Delhi, India. He has authored 6 books in the field of garment manufacturing technology, garment business setup, and industrial engineering. He loves writing how-to guide articles in the fashion industry niche. He has been working in the apparel manufacturing industry since 2006. He has visited garment factories in many countries and implemented process improvement projects in numerous garment units in different continents including Asia, Europe, and South Africa. He is the founder and editor of the Online Clothing Study Blog.

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