Characteristics and filtration principle of meltblown fabric
Meltblown fabric is an efficient filtering material with good filtering performance and stable chemical properties. The filtering principle is mainly to intercept suspended solids and microorganisms through capillary action and surface adsorption, ensuring the cleanliness and hygiene of water quality. However, in practical use, washing the meltblown fabric under tap water can lead to a decrease in filtration efficiency.
Factors affecting the performance of meltblown fabrics
1. Raw material quality
The performance of meltblown fabric is greatly affected by the quality of raw materials. The fiber diameter, length, melting point, and other characteristics of raw materials will directly affect the mechanical properties, filtration efficiency, and breathability of meltblown fabrics.
2. Melt spraying process parameters
The parameter settings of the meltblown process also have a significant impact on the performance of meltblown fabrics. Reasonable adjustment of parameters such as meltblown temperature, spinning speed, and airflow speed can improve the fiber distribution, fracture strength, and surface smoothness of meltblown fabrics
3. Equipment status
The state of the meltblown equipment can also affect the performance of the meltblown fabric. The stability, cleanliness, and maintenance status of the equipment will directly affect the production efficiency and quality of meltblown fabrics.
Reasons for washing under tap water
The main reasons for washing meltblown fabrics under tap water are as follows:
1. Tap water contains a large amount of impurities and microorganisms, which can adhere to the surface of the meltblown fabric, forming resistance and reducing its filtration efficiency.
2. Tap water contains a large amount of chlorine and chloride substances, which can cause fiber breakage and corrosion when in contact with meltblown fabrics, damaging their filtration performance.
3. Excessive water flow can damage the fiber structure of the meltblown fabric, resulting in a decrease in its filtration efficiency.
The solution to the decrease in filtration effect of meltblown fabric
To ensure the filtering effect of the meltblown fabric, the following measures need to be taken:
1. Regularly replace the meltblown fabric to avoid contamination and damage caused by prolonged use.
2. Try to minimize the number of times the meltblown fabric is washed under tap water, and adopt other washing methods such as spraying water or using detergent for cleaning.
3. Strengthen the pre-treatment of tap water, remove impurities and microorganisms, and reduce pollution and damage to meltblown fabrics.
4. Control the size and speed of the water flow to avoid excessive pressure and damage to the meltblown fabric.
Conclusion
This article analyzes the reasons and solutions for the decrease in filtration efficiency of meltblown fabrics. Effective management and protective measures can ensure the filtration effect of meltblown fabric and guarantee the cleanliness and hygiene of water quality.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Oct-27-2024