What is hydrophilic non-woven fabric? Hydrophilic non-woven fabrics and water-resistant non-woven fabrics relative. The hydrophilic nonwoven fabric is obtained by adding a hydrophilic agent to the production process of the nonwoven fabric, or adding the hydrophilic agent to the fiber in the course of the fiber production, and then producing the nonwoven fabric which is the legendary hydrophilic nonwoven fabric La.
Why is it necessary to add a hydrophilic agent? This is because the fiber or non-woven fabric is a high molecular polymer, its own hydrophilic group is small, or no hydrophilic groups, can not achieve the necessary non-woven applications in the hydrophilic properties , Thereby adding a hydrophilic agent to increase its hydrophilic group.
Then someone will ask what is the hydrophilic agent? Can make the surface tension quickly decline. Mostly long chain organic compounds, molecules in the presence of hydrophilic groups and lipophilic groups.
1, the types of surfactants: ionic (anionic, cationic and amphoteric) surfactants and nonionic surfactants.
2, nonionic surfactants: polysorbate (Tween Tween) -20, -40, 60, 80, sorbitan monolaurate (Span) -20,40,60,80, poly Oxyethylene lauryl alcohol (sold Ze Myrj) -45,52,30,35, emulsifier OP (nonylphenol polyoxyethylene ether condensate), milk Braun A (polyoxyethylene fatty alcohol ether), West (Polyoxyethylene and cetyl alcohol adduct), Pu Luluo Ni (polyoxyethylene polypropylene glycol condensate), glycerol monooleate and glyceryl monostearate.
3, anionic surfactants: soft soap (potassium soap), hard soap (sodium soap), aluminum monostearate, calcium stearate, triethanolamine oleate, sodium lauryl sulfate, whale hard sodium sulfate, sulfated Castor oil, sodium dioctyl succinate, and the like.
4, cationic surfactants: benzalkonium bromide, benzalkonium bromide, benzalkonium chloride, benzethonium chloride, bromide hexadecane and so on; almost all disinfectant.
5, amphoteric surfactants: less; also for the disinfectant preservatives.
This hydrophilic non-woven fabric is made of ordinary polypropylene spunbond non-woven fabric by hydrophilic treatment, with good hydrophilicity and permeability. Mainly used in health products, such as urine is not wet, diapers, sanitary napkins surface layer, can quickly penetrate to keep dry and comfortable. Can be said that in our lives, but it is very common!