Sewing thread of industrial sewing machine is used for special custom, if there is no special we will choose a relatively coarse line sewing, we all know that the quality of sewing thread affects the quality of sewing products, the quality of a product is good or bad, which is inseparable from the sewing line.
Sewing thread has pure cotton, nylon, cotton, blended yarn, polyester rayon and so on, generally consists of two shares, three shares, four shares, six shares of single yarn twisted, twisting direction can be divided into S and Z twist two. Sewing machine generally adopts Z twist suture, good quality S twisting can also be applied in other sewing machine.The sewing performance of cotton sewing thread is good, but in the washing shrinkage than synthetic fiber line, its strength, chemical resistance and wear resistance than synthetic fiber is also poor, high quality mercerized cotton is expensive, so it is now rarely used. Short fiber cotton sewing thread polyester sewing thread suture of low cost, stability, durability and excellent sewing, so it is suitable for all conventional sewing.The sewing thread of overlock sewing machine is usually cotton, but because of the current cotton fiber cost is high, so now generally use polyester cotton instead.
(1)High strength polyester line: the most conventional, one of the most widely used varieties of sewing thread market.It is characterized by good gloss, no elasticity, good color fastness and strong tensile force. It is widely used in PVC, thick cloth, nylon leather products sewing.
(2)The fishing line (transparent line): the transparent lines are nylon and polyester monofilament respectively. In the expansion, hardness, tensile and use is also different. It is commonly used in weaving, sewing trademark, suit pants, sewing craft products and all kinds of application of transparent material.
(3)Pure cotton (polyester staple line): polyester staple yarn is conventional line which is widely used.The surface has a little feather, tensile strength, gloss, abrasion resistance,the performance is inferior to other lines.It is used in the thin fabric, pure cotton combed cotton is made from natural and stock singeing and, specifically for cotton cloth and sewing production.
(4)Wax rope line (zouma line): the wax rope has two kinds of nylon and polyester materials.The linear flat is good, strong tension, waxed after wax rope, commonly used in the thick leather sofa, outdoor appliances,casual shoes, leather products such as thick sewing or hand sewing operation.
Sewing yarn single yarn count range is generally 9 - 80 branch, the joint number is mostly 3 shares, there are 2 shares, 4 shares and more than 6 shares of the type, up to 12 shares More than 6 shares sewing thread is generally used for leather, sail sail and footwear industry.
There are many forms of sewing thread,in hand sewing era, mainly twisted cotton and silk. With the use of sewing machines, wood yarn appeared again.That is the core of the wood around the cotton wax, then the paper core (or plastic core) line, cardboard line,ball line, Pagoda line etc.All we know that the capacity of various rolls varies according to civil and industrial use.Civilian sewing thread, such as wood yarn, paper core, cardboard line and ball line, the length is 50-1000 meters.Industrial sewing thread roll length of 1000~11000 meters, is wound on the bobbin cone bobbin or edge, called Pagoda line or splint package line.