How to choose the specifications of sewing thread

Model specifications of sewing thread

1, nylon thread (Nylon 6, Nylon 6.6)

nylon thread and It is called nylon thread and pearl thread. It is made of continuous filament nylon fibers twisted together. It is smooth and soft, with an elongation rate of 20% to 35%. It has good elasticity and emits white smoke when burning. High wear resistance, good light resistance, mildew resistance, coloring degree of about 100 degrees, low temperature dyeing. It is widely used because of its high seam strength, durability, flat seam, and can meet the needs of a wide range of different sewing industrial products.

The following are its general physical properties:

Line Size Denier Mean Strength (KG)

40# 210D/1×2 2.3

30 # 210D/1×3 3.5

20# 210D/4 4.8

10# 210D/2×3 7.0

5# 210D/3×3 10.0

0# 210D/4×3 14.0

2. Tedolong line

Tedolong line: also known as high-strength line, polyester line, is made of continuous Polyester high-strength and low-elongation filaments are twisted together, with a temperature resistance of 130 degrees, high tensile force, low elongation, and no elasticity; but poor wear resistance, harder than nylon threads, black smoke when burned, and dyed at 130 degrees high temperature. Smooth, no more joints, good color fastness, sewing thread that meets international environmental protection requirements.

Its commonly used specifications are:

Wire No. Daniel Average Strength (KG)

60# 150D/1×3 2.4

40# 210D/1×2 2.4

30# 210D/1×3 3.6

20# 210D/1×4 4.5

10# 210D/2×3 6.0

5# 210D/3×3 9.0

0# 210D/4×3 11.0

There are other thicker sizes: 15 strands, 18 strands, 21 strands, 24 strands, 30 strands, etc.

3. PP pure polyester thread

PP pure polyester thread, also known as SP thread, PP thread, is also produced from polyester raw materials with high strength and low elongation Made with wool on the surface, temperature resistance 130 degrees, high temperature dyeing. Polyester raw material is the most resistant to friction, dry cleaning, stonewashing, bleaching and other detergents among all materials. Its low elongation and low stretch rate ensure excellent seamability and prevent wrinkles and jumps. Needle.

Common models are:

20S/2, 20S/3, 20S/4, 30S/3, 30S/2, 40S/2, 40S/3, 50S/2, 50S/3, 60S/2, 60S/3.

4. Bondi Thread

Bondi Thread has two materials, Nylon 6 and Nylon 6.6, which are made of continuous nylon filaments twisted together with After the bonding process, all strands of yarn are bonded together and will never diverge even if cut with scissors. After being lubricated with high efficiency, it can be used in daily heavy sewing processes, such as leather, canvas products or sports shoes.

The elongation is 20-28%, with good wear resistance, not easy to break, and the surface is smooth like a ribbon.

Common models:

Wire size Daniel

30# 210D/1×3

20# 280D/1×3

10# 420D/1×3

5# 630D/1×3

5. Polyester Leather Sewing Thread

Polyester Leather sewing thread, also known as special thread, is made of a high-quality high-strength lipidated filament twisted together. Compared with nylon thread or PP thread of the same level, it has stronger tensile force, soft material, low elongation, no Elasticity, bright color, non-fading, and has the characteristics of light resistance, heat resistance and wear resistance, it is most suitable for sewing various leather goods, women’s shoes, artificial leather products, etc.

Common specifications and models are:

Wire No. Daniel

80# 100D/1X3

60# 150D/1×3

40# 210D/1×3

30# 280D/1×3

20# 420D/1×3

15# 630D/1×3

10# 840D/1×3

8# 1050D/1X3

5# 1260D/1X3

6,Mark Thread

Marker thread is double-twisted on the basis of PP pure polyester thread. The twist direction has S direction and Z direction, that is, left twist and right twist.

There are two ways of twisting, one is that several strands are twisted together, the other is that 2 strands, 3 strands or 4 strands are first twisted into a small strand, and then these small strands are twisted together with 3 strands. , 4 strands, 5 strands, 6 strands, etc. are twisted together into a large strand.

Common sizes are: 2×3, 3×3, 3×4, 3×5, 3×6, 4×3, 6×3.

7. Polyester core-spun thread

Polyester core-spun thread is a sewing thread made of polyester filament as the core and covered with polyester staple fiber on the outside . Higher and more balanced strength, moderate toughness, tight stitching, excellent low shrinkage, good wear resistance, excellent corrosion resistance, antistatic properties, plus specially developed lubricating oil, used in delicate It is a perfect combination for sewing, and the operation with high requirements for seam strength. Common specifications are: 602, 402, 403, 202, 203, etc.