Non Woven Fabric

  With the rapid development of flower output value in my country, the scientific modernization of the flower market is the future development direction. Plastic greenhouses and  greenhouses  are the two basic conditions and facilities that are indispensable in the development of flower modernization. But these two methods have their own different advantages and disadvantages. First of all, plastic greenhouses are simple to create, easy to select materials, and low in investment, but they are simple to set up and have poor thermal insulation effects. The greenhouse heat preservation effect is better, but the cost is expensive and the investment is large. The average flower investor cannot afford it. The emergence of non-woven fabrics just solved this problem. First of all, the non woven fabric functions to form a two-layer insulation layer inside the plastic greenhouse, and the use of the non woven fabric can change the temperature, humidity and light intensity in the greenhouse. There

  (1) Physical properties:   PP non woven fabric   is a non-toxic, odorless, milky white highly crystalline polymer, which is particularly stable to water, and its water absorption rate is only 0.01% in water for 14 hours. The molecular weight is between 80,000 and 150,000, and the moldability is good. However, due to the large shrinkage rate, the original wall products are easy to dent, the surface of the products has good gloss and is easy to color. (2) Mechanical properties: PP non woven fabric has high crystallinity and regular structure, so it has excellent mechanical properties. Its strength, hardness and elasticity are higher than high-density PE (HDPE). The outstanding feature is the resistance to bending fatigue (7×10^7) times of opening and closing without damage. The coefficient of dry friction is similar to nylon, but it is not as good as nylon under oil lubrication. (3) Thermal performance: PP non woven fabric has good heat resistance, melting point is 164~170℃, and produc

  Since the spread of the new crown pneumonia epidemic, masks have become a must-have item for everyone to travel. Stimulated by the huge market, mask manufacturing companies have sprung up like mushrooms. The process of making masks is very simple and there are no technical problems. The key lies in the material aspect. Many new-born mask manufacturers have never been involved in the mask industry and cannot distinguish between   spunbonded non woven fabrics   and   meltblown non woven fabrics , which has caused many problems. Although what is the difference between non woven fabric and   melt blown fabric ? Let's take a look: 1. The difference between spunbond non woven fabric and meltblown fabric raw materials Spunbond non woven fabric: mostly use polypropylene pellets as raw materials. Melt blown cloth: mainly use polypropylene as raw material. 2. The difference between the advantages of spunbond non woven fabric and meltblown fabric Spunbond non woven fabric: moisture-proof, b