The down-proof property of fabric is then evaluated by counting the number of down and feather penetrating outside from the specimen inside.

 Before testing the down-proof property of fabrics, turn the specimen into a  bay-type with a certain quality of feather and down inside. Put the specimen into the rotating box while the rotating box is also loaded into hard rubber balls. The rotating box tumbles at a certain speed, bring the rubber balls to a certain height to drop and impact the specimen, which simulates all kinds of squeezing, rubbing and colliding effects of feather and down products in the service process. The down-proof property of fabric is then evaluated by counting the number of down and feather penetrating outside from the specimen inside.

 
Application 
the down-proof property of fabrics refers to the fabrics performance to prevent down and feather from leaking out from the yarn gap. The instrument is suitable for the down-proof property test of various fabrics of lining materials and shell fabrics used for feather and down filled products. The tester consists of a rotating box with forward and reverse rotation and motor control assemblies. The rotating box is made from organic glass material, a cube with smooth internal wall. The instrument has functions, such as intelligent presetting of number of revolutions, automatic stop upon full revolutions, etc.
 
Standards
GB/T 12705.2-2009
Textiles– Methods of testing the down-proof properties of fabrics-Part 2: tumbling method.
FTMS 191A Method 5530
Penetration resistance of cloth to passage of feather and down; tumbling method.
AATCC 150 
Dimensional changes of garments after home laundering
EN 12132.1
Feather and down - Methods of testing the down-proof properties of fabrics -Part 1:Rubbing test
Technical Parameters

Qinsun Instruments (Shanghai) Co., Ltd.

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