Spun Polyester Bag Closing Thread
High-strength, smooth-running threads built for heavy-duty bag closing and bulk packaging operations.
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Designed for Demanding Packaging Applications
Designed specifically for high-speed bag closing operations, our spun polyester bag closing thread delivers the required tensile strength, consistent chain stitch, and smooth, breakage-free machine performance.
Our spun polyester thread is manufactured in India and made from 100% spun polyester fibres with controlled twist and lubrication to help reduce friction and thread breakage during bag stitching operations.
Suitable for woven bags used across fertilizers, chemicals, grains, animal feed, sugar, and other bulk materials, the thread is available in different counts, colours, and cone sizes to match specific application requirements.
Spun Polyester Bag Closing Thread Technical Specifications
| Tkt | Tex No. | Construction (Ne/Ply) | Breaking Strength (Kg) | Elongation Range (%) | Recommended Needles (NM) |
|---|---|---|---|---|---|
| 20 | 120 | 20/4 | 5.08 | 14 – 24 | 130 – 160 |
| 15 | 150 | 12/3 | 6.00 | 14 – 18 | 130 – 160 |
| 10 | 200 | 12/4 | 7.77 | 13 – 21 | 130 – 160 |
| 8 | 240 | 10/4 | 9.01 | 16 – 24 | 130 – 160 |
| 8 | 240 | 15/6 | 9.01 | 16 – 24 | 130 – 160 |
| 8 | 240 | 20/8 | 9.02 | 12 – 22 | 130 – 160 |
Construction example: 12/4 means four plies of Ne 12 spun polyester yarn. Cone sizes: 150 g–5 kg. Custom specifications and packaging options are available on request.
Key Features of Our Spun Polyester Bag Closing Thread
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Consistent bag-closing stitches
Controlled construction helps produce uniform chain stitches in manual and high-speed bag-closing operations.
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Smooth machine running
Our two-stage lubrication helps the thread pass smoothly through guides and needles, reducing friction and breakage.
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Strength for bulk packaging
Choose the construction best suited to the bag material and size.
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Reliable performance
Specifically designed for coarse materials such as woven PP, HDPE, and jute.
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Choice of counts and cone sizes
Multiple thread counts and constructions are available, with cone sizes up to 5 kg.
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Options for your application
Custom specifications, colours, and packaging options are available.
Typical Applications for Spun Polyester Bag Closing Thread
Our spun polyester bag closing threads are used for closing woven and jute bags that carry agricultural, food, and industrial bulk goods.
Bag-closing operations
- Manual bag-closing machines
- High-speed bag-closing lines
- Chain-stitch closures on filled sacks
- Bag hemming
Spun Polyester Bag Closing Thread Product Properties
| Property | Details |
|---|---|
| Composition | 100% spun polyester staple fiber |
| Lubrication | Micro-molecular finish for smooth machine performance |
| UV Resistance | High – suitable for outdoor storage and transport |
| Packaging | Cones, reels and custom industrial-size formats |
| Cone Sizes | 150 g to 5 kg |
| Colour Options | Standard white and select industrial shades (custom shades on request) |
How We Make Spun Polyester Bag Closing Thread
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Controlled construction
We select the appropriate yarn count and ply construction to suit different bag fabrics and stitching requirements.
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Precision twisting
Controlled twisting helps maintain consistent thread strength from cone to cone and supports smooth, uniform stitching.
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Two-stage lubrication
Our two-stage process helps reduce friction as the thread passes through guides and needles during continuous stitching.
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ISO 9001:2015 certified systems
Our production follows ISO 9001:2015 certified quality management systems, from yarn selection to final packing.
Why Choose Mahalaxmi Spun Polyester Bag Closing Thread
- Consistent production — Controlled construction, precision twisting, and quality checks help maintain consistent specifications across batches.
- Smooth running — Two-stage lubrication helps reduce friction as the thread passes through guides and needles during continuous bag closing.
- Options for your production line — Choose from multiple counts, ply constructions, colours, and cone sizes. Custom specifications and packaging are available on request.
- Application support — Our team can help you select the thread count, construction, and cone size for your bag fabric and closing machine.
Spun Polyester Bag Closing Thread FAQs
Which thread constructions are available?
Our standard spun polyester bag closing thread constructions are 20/4, 12/3, 12/4, 10/4, 15/6, and 20/8 (Ne/Ply). Custom specifications are available on request.
What is the lead time?
Most standard specifications are available from stock. Custom specifications typically take 15–45 days, depending on the construction, order quantity, and requirements.
Which bag materials can this thread be used with?
It is designed for closing woven PP, HDPE, and jute bags. We can help you select a construction to suit your bag fabric and closing machine. For lighter-duty sacks, see our polypropylene bag closing thread or compare both with the spun polyester vs polypropylene converter.
What cone sizes are available?
Cone sizes range from 150 g to 5 kg. Custom cone sizes, twists, and colours are also available. Use our bags per cone calculator to estimate how many bags one cone will close.
Do you export to other countries?
Yes, we can export to most of Europe, the US, the Middle East, Africa and Oceania, and supply all over India. Share your destination country and order details with our team so we can confirm export availability and shipping requirements.
Are you a manufacturer or a trader?
We manufacture spun polyester bag closing thread in India, with controlled construction, twisting, and lubrication as part of our production process.