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Testing principle of non-woven fabric dry fallen wadding tester

Testing principle of non-woven fabric dry fallen wadding tester

Non-woven fabric dry flocculation tester is also called torsion tester. This equipment is used to evaluate the non-woven fabric flocculation test under dry conditions. It is mainly suitable for medical protective materials (surgical drapes, surgical gowns, clean clothes, etc.) Evaluation of the linting performance of the raw materials Wufangbu and other textile materials. When testing, the principle of the test: the sample undergoes a combined action of torsion and compression in the test chamber. In this twisting process, air is drawn from the test box, and the test results are evaluated by counting and classifying the particles in the air with a laser dust particle counter.



Standards compliant:
 
  YY/T0506.4, ISO9073.10, INDAIST160.1, DINEN13795-2
 
  Technical Parameters:
 
  1. Sealed torsion chamber and air device;
 
  2, twisting speed: 60 times/min;
 
  3, twist angle/stroke: 180°/120mm;
 
   4. Sample fixture: 82.8mm;
 
   5. Laser particle counter test range: collect samples of 0.3-25.0um;
 
  6. ​​Flow rate of laser particle counter: 28.3L/min, ±5%;
 
  7. Sample test data storage: 3000;
 
   8. Timer: 1-9999 times.
 
  component:
 
  1) Twisting device: a device that produces a combination of torsion, compression, and reset on the test piece
 
  2) Twisting box (antistatic): an antistatic plexiglass box that covers the twisting device for testing
 
  3) Air collector: fixed at a specific position in the twisting box, with a certain shaped sampling port
 
  4) Laser dust particle counter: count and classify the collected particles in the air
 
   Test principle:
 
   During the test, the sample undergoes a combined action of torsion and compression in the test box. During the twisting process, air is drawn from the test box, and the particles in the air are counted and classified by a laser dust particle counter to evaluate the test results.

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