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How much do you know about environmental protection materials for masks?

  • Author:GUIDE TEXTILE
  • Source:GUIDE TEXTILE
  • Release on:2020-11-23
At present, the basic raw material of commonly used mask fabrics is polypropylene masterbatch, which has the advantages of low density and easy photodegradation. After the polypropylene non-woven fabric reaches a certain length of use, the macromolecular chain can be photodegraded and broken. It is suitable for disposable mask materials(Spun-bond Non Woven On Sales) and can reduce environmental pollution. Polyester fiber has the advantages of high strength and good light resistance. Its high crimp hollow short fiber can be used for interlayer meltblown, which can increase the dust holding capacity of the mask and reduce the filtering resistance of the mask. In addition, the modified basic raw materials can also improve the protection of masks.

One method is to use modified PP or blend PP and functional masterbatch to spin. If microcapsule technology is used, the microcapsules with degrading agent as the core material are uniformly adhered to the fiber surface to prepare degradable non-woven fabrics(SS Non Woven Fabric Vendor). In addition, controllable degradation agent or nano-level photosensitive material powder is added to PP polymer for blending meltblown spinning, and the produced meltblown cloth has controllable light-biodegradability. The antibacterial agent (generally 5%-20%) can also be mixed into the spinning masterbatch, and the antibacterial non-woven fabric can be obtained after blending and spinning.

Spun-bond Non Woven On Sales, China Spun-bond Non Woven Wholesale, SS Non Woven Fabric VendorSpun-bond Non Woven On Sales, China Spun-bond Non Woven Wholesale, SS Non Woven Fabric Vendor

With the rapid increase in the use of disposable medical masks(China Spun-bond Non Woven Wholesale), if a large number of masks cannot be degraded in time after being discarded, it will cause serious environmental pollution. In order to alleviate the pressure on environmental protection, researchers have developed natural cellulose and bio-based polymers that are green, sustainable, and biodegradable. Natural cellulose and its derivatives, such as viscose, Lyocell, Viloft, chitin, and synthetic polymers, such as polylactic acid (PLA), are gradually being used in the production of nonwovens. The researchers used chitin nanofibers and lignin as raw materials, polyoxyethylene (PEOx) as the solvent, and electrospinning to fabricate degradable nanofiber membranes. After antistatic treatment, the membrane is placed between high-strength spunbonded fabrics to make a mask with protective properties.

  

In order to further adapt to environmental protection requirements, Taiwan, China, Europe and the United States and other countries or regions have widely adopted bio-based polymers, such as bio-based polyethylene (PE), bio-based polyester, bio-based polypropylene, etc. to produce degradable environmentally friendly spunbonded fabrics and meltblown cloth. Among them, the output of bio-based PE accounts for about 28% of the market share of bioplastics, and it has been successfully applied in the non-woven field.