Defect types and treatment solutions of PP spunbond nonwoven fabric
March 13, 2026
1.Uneven thickness or weight deviation of PP spunbond nonwoven fabric
Reason: Uneven mixing of raw materials, incorrect equipment parameter settings (such as unstable hot rolling temperature or pressure).
Solution: Adjust equipment process parameters, such as controlling the hot rolling temperature at 150-260 ℃ (depending on the material), and strengthen raw material pretreatment.
2. PP spunbond nonwoven fabric has insufficient strength (low tensile/tear strength)
Reason: Poor fiber bonding, poor raw material quality, or improper production process.
Solution: Optimize the consolidation method of the fiber mesh (such as needle punching or hot rolling) and select high-strength fibers.
3. PP spunbond nonwoven fabric has holes or stains
Reason: Dust pollution in the production environment, insufficient equipment cleaning, or impurities in raw materials.
Solution: Strengthen the cleanliness control of the production environment and regularly clean the equipment.
