How Much Do You Know About Suture Of Garment Accessories?

< p > < strong > line formation < < /strong > < a > href= > http://www.91se91.com/ > strong > concept < /strong > /a > /p >

< p > carding (coarse carding) - yarns that are only woven at one end.

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< p > combing - the comber is used to carve the ends of the fibers with less impurities and more straight fibers.

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< p > Blending -- two or more than two kinds of fibers of different properties mixed together.

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< p > single yarn -- directly formed on the spinning frame, which will disperse once the twisting is broken.

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< p > strands - two or more yarns and twisted together, short lines.

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< p > sewing thread -- clothing and other sewing products collectively referred to as the line.

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< p > new spinning, unlike traditional ring spinning, one end is a free end, such as air spinning, friction spinning, etc.

The yarn is entangled together without twisting.

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< p > gauze -- the index used to indicate the fineness of yarn, mainly consists of British count, metric count, special number and denier number.

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< p > < strong > < < /strong > a href= "http://www.91se91.com/" > strong > twist > /strong > /a > /p >

< p > definition: through the twisting of the fiber structure, the relative angular displacement between the cross sections of the line will be generated, and the structure of the line will be changed through the inclination of the straight fiber and the axis.

Twisting enables the wire to have certain physical, mechanical properties such as strength, elasticity, elongation, luster, handle and so on. It is expressed in the twisting number per unit length, which is commonly used in every inch (T.P.I) or T.P.M per meter.

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< p > twist: rotate around the axis 360 degrees for a twist.

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< p > twist direction (S direction or Z direction): the skew direction of the helix formed when the yarn is perpendicular to the axis.

The direction of S twist is consistent with the middle part of the letter S, that is, the direction of the right hand or the clockwise direction.

The direction of Z twist is consistent with the middle part of the letter Z, that is, the left hand direction or the counterclockwise direction.

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< p > twist and strength: the twist of the line is directly proportional to the strength, but after a twist, the strength decreases.

The twist is too large, the twist angle is increased, the luster of the line is poor, and the handle is poor.

This is because the increase of twist and the increase of frictional resistance between fibers increase the strength of the wire.

But the twist increases, the axial force of the yarn becomes smaller, and the stress distribution of the inner and outer fibers is uneven, leading to the inconsistency of fiber breakage.

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< p > in short, the fracture performance and strength of the wire are closely related to twist. Twisting and twisting are determined according to the needs of finished products and post processing, usually Z twist.

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< p > < strong > suture < /strong > a href= "http://www.91se91.com/" > strong > classification < /strong > /a > strong > > /strong > < /a > < > > < > > < > > < > > > > > > > > > > > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > strong > < > > < > > > > > < > > > > > > > > > > > > < > > > > > > > > > strong > > /strong > < /a > strong > < > > > > > > > < > > > > > < > > > > > < > > > > > > strong > > /strong > > /a > strong > > < /strong > > < > > > < > > > > > < > > < > > < > > < > > < > > < > > < > > < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > strong > < < > > > /strong > /a > strong > < < > > >

< p > according to raw materials, it can be divided into three categories: natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread.

1. natural fiber sewing thread < /p >

< p > cotton sewing thread -- sewing thread made of cotton fiber as raw material by refining, bleaching, sizing and waxing.

Cotton sewing thread can be divided into no light (or soft line), silk light and wax light.

Cotton sewing thread has high strength and good heat resistance. It is suitable for high speed sewing and durable press.

It is mainly used for sewing cotton fabrics, leather and high temperature ironing clothes, and the drawback is that it has poor elasticity and wear resistance.

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< p > silk thread -- long silk or silk thread made of natural silk has excellent luster, and its strength, elasticity and wear resistance are better than cotton thread.

It is suitable for sewing all kinds of silk garments, high-grade woolen garments, fur and leather garments.

2. synthetic fiber sewing thread < /p >

< p > polyester sewing thread, made of polyester filament or staple fiber, has high strength, good elasticity, wear resistance, low shrinkage and good chemical stability.

But the melting point is low, the speed is easy to melt, the needle eye is blocked, and the line is easy to break. Attention should be paid to the selection of the needle.

It is mainly used for jeans, sportswear, leather products, wool and uniform. It is the most popular and popular sewing thread at present.

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< p > nylon sewing thread, made of pure nylon multifilament, divided into long silk thread, short fiber dimension line and elastic deformation line.

At present, the long silk thread is commonly used. It has the advantages of high elongation and good elasticity, and its elongation at break is three times larger than that of cotton with the same specification.

It is used for sewing chemical fiber, woolen, leather and elastic garments.

The biggest advantage of nylon sewing thread is pparency. Because the line is pparent and the color is good, it reduces the difficulty of sewing wiring and has broad prospects for development.

However, limited to the present market, the rigidity of the pparent wire is too large and the strength is too low. The stitch is easy to float on the surface of the fabric, and the temperature is not high enough, so the sewing speed can not be too high.

At present, this kind of thread is mainly used for parts such as applique, edge cutting and so on.

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< p > polyvinyl alcohol sewing thread, made of vinylon fiber, has high strength and stable stitch. It is mainly used for sewing thick canvas, furniture cloth, labor protection articles, etc.

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< p > acrylic sewing thread, made of acrylic fiber, with low twist and bright coloring, is mainly used for decoration and embroidery.

3. mixed sewing thread < /p >

< p > polyester cotton sewing thread, which is made of 65% polyester and 35% cotton, has the advantages of polyester and cotton. It has high strength, wear resistance, heat resistance and shrinkage. It is mainly used for high-speed sewing of all kinds of garments, such as cotton, polyester and cotton.

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< p > core sewing thread, filament core, made of natural fibers, strength depends on core wire, wear resistance and heat resistance depends on outer yarn, mainly used for high-speed and strong garment sewing.

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< p > < strong > suture selection < /strong > < /p >.

< p > in the specified conditions, the stitches form a good track while maintaining certain mechanical properties.

According to the material, thickness, organization, color, sewing style, sewing equipment or means of sewing material, the stitches and machine needles that match the type and specifications can generally follow the following principles: < /p >

< p > < strong > 1. and fabric characteristics < /strong > < /p >

< p > ensure the uniformity of shrinkage, heat resistance, wear resistance, durability and so on, avoiding shrinkage caused by excessive line and fabric.

In general, soft and thin materials should be made of thin thread, small needles, thick and thick materials, and large size needles.

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< p > < strong > 2. and sewing equipment coordination < /strong > < /p >

< p > the horizontal sewing machine adopts a left-handed suture, which can be twisted when sewing, so as to maintain the strength of the suture.

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< p > < strong > 3. and line form coordination < /strong > < /p >

< p > the cotton thread sewing machine selects fine cotton thread, and the material is not easy to form and wrinkle, and makes the chain trace beautiful and comfortable.

Double line stitches should be chosen with good extension stitches.

A href= "http://www.91se91.com/" > suture < /a > should be chosen for crotch joints and shoulder joints.

The wearable suture should be chosen for button eyeliner.

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< p > < strong > 4. and clothing type coordination < /strong > < /p >

< p > special purpose < a href= "http://www.91se91.com/" > dress < /a >, for example, elastic clothing needs elastic suture, and fire-fighting clothing applies heat resistant, flame retardant and waterproof treatment sutures.

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