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Zhejiang Leinuo Textile Technology Co., Ltd

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colorful 4070 air covered yarn 100% nylon yarn for knitting underwear

Minimum order quantity:1000kg
Delivery time:Subject to order
Payment:T/T ( 30% Advance ; 70% before loading container ) ; L/C at sight.
Supply capacity:15 tons per day
Port:Ningbo/ Shanghai

  • Description
  • Parameters and character
  • Our services
  • FAQ
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roduct Type:

colorful 4070 air covered yarn

Place of Origin:

Material:Spandex and poy yarn 
Brand Name:Leinuo
Yarn Type:

air covered yarn

Color:Raw White/Raw Black/According to customer needs
Certification:Oeko-Tex Standard 100

colorful 4070 air covered yarn not only has the characteristics of wrapped polyester, but also has the good elasticity and recovery performance of spandex, which makes up for the defect of single component filament. It is widely used in swimsuit, socks, casual clothes and other products.You can buy them at ease.

Parameters and character

Features of Spandex Covered Yarn

1. Air-covered yarn (abbreviated as acy) is a yarn in which the outer fiber filament and spandex yarn are drawn through a certain type of nozzle at the same time, and the rhythmic network point is formed by the regular spray pressure of high-compressed air. The fabric feels soft and smooth;

2. Mechanical covered yarn (abbreviated as scy in English) is to continuously rotate and wrap the outer fiber filament on the core silk spandex that is drawn at a constant speed. It is twisted to have a twist (abbreviated as tpm in English) Flat and crisp style is its main feature.

Air-covered yarn and mechanical-covered yarn have their own advantages and disadvantages in downstream weaving mills. Air-covered yarn generally needs sizing when warping on an air-jet loom, otherwise the fabric is prone to fluff and broken threads, but it can be used directly by beating up. In terms of cost alone, the production capacity of air-covered yarn is much higher than that of mechanical-covered yarn, which makes the price lower than that of machine bag, which is convenient to reduce the cost of downstream weaving mills.

75d denier polyester yarn 36F DTY textured yarn

Our services

What is twist S and twist Z?

Recently, there has been a lot of talk about S twist and Z twist threads and it’s getting attention. Some refer to thread twist as a left or right twist, but the proper terminology is S or Z twist. When a sewing thread is constructed, it is made up of multiple strands, usually two or three strands (also referred to as plies or ply) twisted together, although some may have as many as six or eight strands twisted together. All sewing, embroidery, or quilting threads made for home machines, industrial machines, or longarm machines should have a final Z twist pattern.

The direction of the twist is important. If you hold the roving at one end and you twist it to the left, you create an “S” twist. If you twist it to the right, you create a “Z” twist

The initial twist (or first twist) for the individual strands should be an S twist. These strands are then twisted together in a final Z twist to form the thread. This is the same worldwide for any major brand of sewing, embroidery, or quilting machine. There are a few threads that have the opposite twist. Some hand quilting thread, knitting, and weaving threads have a final S twist. If you use a thread with an opposite twist, the thread will loosen instead of tighten as you sew with it. Threads are not marked with the twist pattern because it isn’t considered essential to know. If you use quality thread from a reliable company and stitch with it in its intended purpose, most likely it has the proper twist. If you notice that your thread unravels as it sews, it is probably a thread not intended for machine work.

ACY SCY different


1.Q:What's your advantages?

A: 1) Good and Stability Quality

2) Professional Communication and offer

3) Efficient After-sales Service

2.Q:Do you have test report?

A:Yes, OEKO-TEX report available

3.Q:Can you accept any urgent order

A:Usually,the production goes by a regular schedule.We are also able to manage some urgent orders if any necessary.



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