Why are non-woven fabrics called "non-woven fabrics"? Is it cloth?
The raw material for non-woven fabrics is polypropylene, while the raw material for plastic bags is polyethylene. Despite their similar names, the two substances are very different in terms of their chemical structure.
The chemical molecular structure of polyethylene is quite stable and difficult to degrade, so plastic bags take 300 years.
Polypropylene, on the other hand, has an unstable chemical structure and the molecular chain can easily be broken, thus allowing it to degrade effectively and enter the next step in the environmental cycle in a non-toxic form. A non-woven bag can be decomposed within 90 days.
The principle of nonwovens Nonwovens are products that do not require a weaving process and are made to look like cloth. It is also called non-woven fabric. The use of nonwovens is because it is a fabric that does not need to be spun and woven, but is simply a textile staple fibre or filament that is oriented or randomly braced to form a fibrous web structure, which is then mechanically, thermally or chemically reinforced.
In simple terms: Non-woven fabrics are not made up of a single yarn interwoven and knitted together, but rather the fibres are bonded together directly by physical means, so that when you get the sticky weigh in your clothes, you will find that it is impossible to draw a single thread. Non-woven fabrics break through the traditional principles of weaving and are characterised by a short process, fast production, high output, low cost, versatility and a wide range of raw material sources.
概要描述：
The raw material for non-woven fabrics is polypropylene, while the raw material for plastic bags is polyethylene. Despite their similar names, the two substances are very different in terms of their chemical structure.
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2023-02-24
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