Copyright 2019 Hubei Fengshu Thread Manufacturing Co., Ltd.
Rongbai
Self-Locking Core Thread
Staple Spun Polyester Fiber & Polyester Filament
This is a core-spun self-locking sewing thread, engineered specifically to enhance the fastening durability of garment buttons. Featuring a proprietary self-locking structure, the thread achieves secure bonding upon heat activation via steam or standard ironing, greatly improving structural stability and button retention.It upgrades garment quality, reduces maintenance and return costs, and serves as an ideal solution against button failure in children’s wear.
Performance Advantages
Outstanding button pull-out strength that reinforces buttonhole resistance to external tension, lowering button detachment risk and substantially reducing after-sales repair rates.
Excellent abrasion resistance and anti-pilling performance, which securely fix loose thread ends, extend sewn product service life, and enhance end-user satisfaction and brand reputation.
High yarn smoothness minimizes skipped stitches and thread jamming during sewing, reducing downtime for adjustment, shortening cycle time per garment, and cutting costs related to returns and repairs.
Excellent abrasion resistance and anti-pilling performance, which securely fix loose thread ends, extend sewn product service life, and enhance end-user satisfaction and brand reputation.
High yarn smoothness minimizes skipped stitches and thread jamming during sewing, reducing downtime for adjustment, shortening cycle time per garment, and cutting costs related to returns and repairs.
Certifications
Applications
•Shirt buttons
• Buttons in ladies blouses for work wear
• Buttons in children’s wear
• Bead attachment
• Sequin attachment
• Suits and blazers
• Buttons in ladies blouses for work wear
• Buttons in children’s wear
• Bead attachment
• Sequin attachment
• Suits and blazers
Typical Products' Technology Characteristics
| Count(Ne) | Linear Density(Tex) | Strength(cN) | Elongation(%) |
| 26s/2 | 22.7×2 | 2,030~2,260 | 19~25 |
| 45s/2 | 13.1×2 | 1,130~1,240 | 18~24 |
Remark: the above index just for your reference


