Sewing thread is an indispensable accessory for all textile industries. How to choose and customize sewing thread is a problem faced by all textile businesses. At present, the price difference of sewing thread products on the market is huge, which makes it difficult for buyers to truly judge that the quality of sewing thread is proportional to the price. Yiwu Yinxiang Sewing Thread Factory has ten years of experience in sewing thread production, processing and customization, and has certain experience in judging the quality of sewing thread. In order for the buyer to have an in-depth understanding of the quality of the sewing thread products, simply list the following points:

Material

Different fabrics and uses need to use different materials for sewing thread, nylon thread, pure cotton thread, polyester thread, polyester cotton thread have different characteristics. Take the most used polyester thread on the market, polyester has the advantages of high strength, wear resistance, good dyeing, low price, etc. Polyester staple fiber (commonly known as cotton thread) is the most used thread in the clothing industry, often said 402 , 203 thread refers to this type of thread; and polyester long fiber thread (high strength thread) is widely used in leather, luggage, shoemaking and other industries due to its high strength and good gloss. Common models are 150D, 300D, 500D Wait. There are many types of sewing thread materials in the market, we can choose the same material according to the sample or the information provided by the customer. If 100% POLYESTER (pure polyester thread), the name of this material is the same on the market, but the price of the same material is very different. Some sewing thread manufacturers use the principle of 60% polyester + 40% recycled material. For blending, it has a great advantage in price, but there are certain differences in quality and tensile strength, and such materials often fail to meet the standard detection.

Sewing thread customization

Exterior

a. Is there any fluffing or beading on the appearance of the finished sewing thread? Is the winding of the outer surface uniform? If not, there are joints inside.

b. Whether the appearance of the finished sewing thread has a uniform thickness is used to judge whether there is a joint.

c. The finished sewing thread is formed normally, and the mark is clear.

Sewing thread quality comparison

strength

The tensile strength of the sewing thread must be regularly checked with instruments and checked from time to time. Due to the influence of raw material market factors, the tensile strength of the thread varies greatly.

Environmental protection

Some customers, especially foreign trade customers, have very high requirements for environmental protection. In addition to the relevant certificates provided by the sewing thread manufacturers, the inspection of environmentally friendly sewing threads must also be subject to strict testing (which can be submitted to a third party for testing) to ensure that the validity of the relevant certificates is valid.

Expansion rate (elongation rate)

The expansion and contraction of the sewing thread has certain indicators. The low-end sewing thread is taken by the hand. When pulling it by hand, the sewing thread will have a certain elasticity, which is easy to make the sewing thread longer and will make the thread thinner. The standard specification of the thread, because the sewing thread has not undergone special processing after high temperature.

Wear resistance, high temperature resistance

The wear resistance and high temperature resistance of the sewing thread are also very important characteristics. The sewing thread is easy to break and fluff when sewing, which is the reason why the sewing thread does not achieve heat and wear resistance.

Twist

Both insufficient and excessive twisting can cause problems. Beading and loose strands appear when sewing threads are sewn. This is due to the insufficient twist of the sewing thread during the twisting process. Excessive twist will cause problems such as strength reduction and knotting.

Color fastness

The color fastness must reach a certain index, otherwise there will be problems such as fading and fading.

Foot code, foot weight

In order to reduce costs, some sewing thread manufacturers reduce the cost of the thread by reducing the net weight, increasing the tube weight, and so on, so that some customers who want to buy cheaper can buy the "lack of catty and less" thread. The following is what our company purchases on the market. This low price line is actually compared with our products