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2024-06

What is the relationship between sewing thread and high strength thread?

High strength thread is a kind of sewing thread. The production line has a certain tensile force, strong tensile force, gloss, high temperature resistance and high speed. Mainly used for leather sewing, such as footwear, bag industry, sofa industry, etc. High strength thread is a common leather sewing thread.

High strength thread is a kind of sewing thread. The production line has a certain tensile force, strong tensile force, gloss, high temperature resistance and high speed. Mainly used for leather sewing, such as footwear, bag industry, sofa industry, etc. High strength thread is a common leather sewing thread.

Constitute a high-strength line.

The high strength thread is suitable for the sewing of various clothing materials, and has the dual function thread of practicality and decoration. The quality of high-strength threads will not only affect the effect of stitches and processing costs, but also affect the appearance quality of the finished product. Therefore, in the development of high-strength line standards for related tests, the general concept of high-strength line standard formation, the relationship between temperature resistance and strength, the classification, characteristics and main uses of stitches, and the selection and use of high-strength lines are targeted.

Comb (carding)-only one end of the textile yarn is combed.

Combing-use a combing machine to comb the yarn at both ends of the fiber, with less impurities and straight fibers.

Blended yarn-a mixture of two or more fibers of different properties.

It is formed directly on a single yarn-spinning frame and is scattered once it is untwisted, referred to as yarn for short.

Stock thread-two or more yarns and twisted together, referred to as thread.

The general designation of stitching-sewing products such as clothing.

New type of spinning-unlike traditional ring spinning, one end is free end such as air spinning and friction spinning. The yarn is intertwined, not twisted.

Yarn count-English count, metric count, special number, denier number-based, used to indicate the fineness of the yarn.

High-strength twisted wire.

Definition:

The relative angular displacement between the line sections is produced by the torsion of the fiber structure, and the line structure is changed by the straight fiber and the axial tilt. Torsion can make the wire have certain physical and mechanical properties, such as strength, elasticity, elongation, gloss and hand. In terms of torque per unit length, torque per inch (T.P. I) or torque per foot (T.P.M) is typically used.

Twist back: A twist back axis rotates 360 degrees.

Rotation direction (S or Z direction):

When the yarn is vertical, the inclined direction of the helix formed by rotating around the axis. The direction of inclination of the S twist coincides with the middle of the letter S, that is, the right-hand direction or clockwise direction. The direction of inclination of the Z-twist coincides with the middle of the letter Z, that is, the left-hand direction or the counterclockwise direction.

the relationship between twist:

The twist is proportional to the force, but after a certain degree of torsion, the force will drop. If the torsion is too large, the torsion angle will increase, the line gloss will be poor, and the hand feeling will be poor; if the torsion is too small, the hair will feel loose. This is because the twisting increases the frictional resistance between the fibers, thereby increasing the strength of the wire. However, with the increase of torsion, the axial force of the yarn becomes smaller, and the internal and external stress distribution of the fiber is uneven, resulting in inconsistent fiber breakage.

In short, according to the needs of the finished product and post-processing, the breaking performance and strength of the thread are closely related to the twist, generally Z twist.

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