What is black heart cotton? How to identify black heart cotton?
From the literal meaning, we understand that black heart cotton is a type of product with poor quality. Generally speaking, black heart cotton is an inferior product and does not meet national standards. In order to save costs, some unscrupulous merchants will add seeds during the finishing process. Mixed with black-core cotton, so when we buy cotton products, we must learn to identify black-core cotton.
First of all, let’s take a look at the basic characteristics of black cotton. It is a fiber product made of wadding. It is not smooth and has no elasticity to the touch. It has a very poor touch and lacks luster. The fiber strength of black cotton is low. It is easy to tear it off if you break it with your hands, and it is usually chemically treated. If you listen to it from the front, it will have a peculiar smell. The fibers of the bleached black cotton have been damaged and absorbed harmful substances, which is harmful to the human body. Common problems include allergies and even breathing difficulties. Black-core cotton will no longer be black after being bleached, which invisibly increases consumers’ ability to identify black-core cotton. Let’s teach you how to identify black-core cotton.
How to identify black cotton?
It can be identified by looking at it. Black-core cotton is not perfect and has a dull color. It is all discarded scraps.
Secondly, you can listen with your nose. Black cotton will emit an unpleasant chemical smell, and it is easy to be poisoned in this environment for a long time.
It can also be identified by igniting the sample. The ignited sample will emit a pungent chemical smell, which is not the smell of burning fibers.
Black-core cotton has low toughness and breaks when torn, while normal cotton does not break so easily.
Finally, it can be distinguished by the feel. Pure cotton is soft and comfortable and has an excellent feel, while black cotton has a rough texture and contains impurities.
The above is the content related to black heart cotton compiled for everyone. Friends who want to continue to learn about fabric-related knowledge scan the fabric knowledge module.
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