China professional colorful yellow ACY air covered yarn 70150 for socks

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.

OUR PRODUCTS

1)DTY

2)yellowACY

3)Spandex Covered Yarn

4)Rubber Covered Yarn

5)Nylon High Elastic Yarn

6)Polyester High Elastic Yarn

7)Spandex

8)FDY

9)Industrial yarn

1.Q:Do you inspect the finished products?

A:yes,each step of production and finished products will be came out inspection by QC department before shipping.

2.Q:What are the factors that affect the cladding quality of spandexcoveredyarn?

A:1.spandex wire draft multiple

2.Fineness of spandex filament

3.covering degree

4.Type of cladding process

3.Q:Is your factory capable of producing?

A:Great.we have latest equipments and skilled workers ready for bulk orders right now.

Which we can provide?

1）Our company has passed OEKO-TEX Standard 100 certification.All the oil agents we use are total's environment-friendly oil, which can be imported into the European, American, Japanese and Korean markets.We provide long-term products for global sports brands ADIDAS and PUMA.

2）Our equipment is imported from Europe, and the yarn produced has better stability.

3）We are both a yarn factory and a trading company, which can customize the product according to the requirements for customers.

4）We are able to research and develop new products with our customers.