- What is the dyeing performance of polypropylene staple fiber? [7/7/2020]
- What is the dyeing performance of polypropylene staple fiber?Dyeing performance of polypropylene staple fiber. The polypropylene in polypropylene staple fiber is a non-polar structure. It does not contain the gene that other fibers usually contain, which can bind the dye molecule by means of polar bond or hydrogen bond, so it is not modified. Polypropylene cannot be dyed. Commercial polypropylene colored fibers are prepared by adding color masterbatches. Although this colored fiber is better in color vividness and color fastness, there are many limitations in chromatography. Frequent replacement of varieties makes manufacturers unable to handle it. In addition, the existing masterbatch used in the production of fine denier staple fiber also has many problems. Therefore, the production of dyeable polypropylene in polypropylene staple fiber can better meet the needs of post-processing manufacturers.There are various ways of dyeing and modifying polypropylene fiber in polypropylene staple fiber, such as fiber surface treatment, copolymer body modification and body modification with dyeable components added.......
- Polypropylene staple fiber workshop should pay attention to this high-risk factor! [7/7/2020]
- Polypropylene staple fiber workshop should pay attention to this high-risk factor! As the temperature rises, especially in the hot summer, measures to prevent high temperature hazards should be taken.When the weather is hot, the workshop has become a high-incident place, so companies and employees must pay attention to it, so what should be done to prevent high-temperature hazards in the polypropylene staple fiber workshop?(1) Polypropylene staple fiber workshops should adopt effective technical measures for ventilation, cooling and air quality adjustment, such as the use of local air supply or forced ventilation for high-temperature posts; and the thermal insulation of the heat medium system.(2) It is also possible to adopt high-temperature seasons and high-temperature post rotation operations to appropriately shorten the operating hours of the operators; or set up on-site duty rooms in high-temperature workplaces, let in cold air or air conditioning indoors, install soundproof and heat-insulating doors and windows, etc. to improve Labor conditions for operators.(3) Maintenance personnel must wear labor protection equipment when working in high-temperature positions. Operators should wear long sleeves and long trousers when working to prevent high temperature burns and burns.The above are the specific measures to prevent high temperature hazards in the polypropylene staple fiber workshop. I hope everyone can understand.......
-> All-Total527News First36/36 Home Previous page Next page