About the non-woven fabrics in masks, you need to understand these 7 production processes
Masks are our essential daily necessities now. Anti-haze, anti-allergic, dust-proof, anti-infection... Masks for various scenes of life emerge in an endless stream. Masks are closely related to our lives, and have you ever heard of masks Structural composition?
Non-woven fabric is a common material in the structural composition of masks. Non-woven fabric (English name: Non Woven Fabric or Nonwoven cloth), also known as non-woven fabric, is composed of directional or random fibers. It is called cloth because of its appearance and some properties. Briefly speaking, it is not interlaced and braided by yarns one by one, but the fibers are directly bonded to each other by physical or chemical methods. Together, so when you get the sticky scale in your clothes, you will find that you can't pull out a single thread.
The production process of mask non-woven fabrics, the fibers used for non-woven fabric production are mainly polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose, acrylic, ethylene (HDPE), and vinyl (PVC). According to the requirements of use, non-woven fabrics are divided into two categories: disposable type and durable type.
According to the production process, it is divided into:
1. Spunlace non-woven fabric: The spunlace process is to spray high-pressure fine water flow onto one or more layers of fiber webs, so that the fibers are entangled with each other Knot together, so that the fiber web can be strengthened and have a certain strength.
2. Heat-bonded non-woven fabrics: Heat-bonded non-woven fabrics refer to the addition of fibrous or powdery hot-melt bonding reinforcement materials in the fiber web, and the fiber web is then heated, melted, cooled, and reinforced into cloth.
3. Pulp air-laid non-woven fabrics: Air-laid non-woven fabrics can also be called dust-free paper and dry-laid non-woven fabrics. It uses the air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-flow method to condense the fibers on the web-forming curtain, and the fiber web is reinforced into a cloth.
4. Wet-laid non-woven fabric: Wet-laid non-woven fabric is to open the fibrous material placed in the aqueous medium into single fibers, and mix different fibrous materials together to make fiber suspension pulp, suspended The pulp is transported to the web forming mechanism, and the fibers are formed into a web in the wet state and then consolidated into a cloth
are important in ensuring non-woven manufacturing, and the machine is utilised by everyone from non-woven company to flame retardant non woven fabric.
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