Characteristics of non woven fabric

  • When tested according to GB/T 455, the intrinsic tear of the machine-oriented non-woven wrapping material shall be not less than 750 mN and the transverse direction shall not be less than 1000 mN.
  • When tested according to GB/T 454, the bursting resistance of the wrapped material after conditioning shall not be less than 130 kPa.
  • When tested according to GB/T 465.1 and using the 10 min immersion time test, the wet endurance of the nonwoven fabric should be not less than 90 kPa.
  • When tested according to GB/T 12914, the machine-oriented elongation at break of the state-adjusted nonwoven fabric shall be not less than 5%, and the transverse direction shall be not less than 7%.
  • In the absence of historical evidence of hydrophobicity by the method of detecting wrinkled paper, the non-woven fabric wrap should be tested for salt water. When tested according to YY0698-2 2009 Appendix D, the salt water permeability of the nonwoven fabric wrapping material shall not be less than 75 minutes.
  • When tested in accordance with ISO 9073-9, the condition of the non woven fabric wrapping material shall have a drape of not more than 90%.
  • When tested according to GB/T 12914, the tensile strength of the non-woven fabric wrapping material after conditioning shall be not less than 1.00 kN/m and the transverse direction shall be not less than 0.65 kN/m.
  • When tested according to GB/T 465.2, the wet tensile strength machine direction of the nonwoven fabric wrapping material shall be not less than 0.75kN/m, and the transverse direction shall not be less than 0.50 kN/m.

 


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