LFY-267 Wallpaper Wipeable and Washable Test Instrument

Main application: 
After rubbing the wallpaper samples with different combinations of friction heads, observe the appearance damage of the samples. This method is mainly applicable to wallpaper. 
Technical Specifications
1. Friction Head Dimensions: 50mm × 29mm; 
2. Friction head quality: 
Elasticity test: The total mass of the friction head and the soft polyurethane foam plastic is (100 ± 5) grams; 
Washable and extra washable test: The total mass of the friction head and the felt pad is (550 ± 10) grams. 
Washing test: The total mass of the friction head and the brush is (600 ± 10) grams. 
3. Friction speed: 
Repeatability test: (30 ± 3) times per minute; 
Washability test: (120 ± 10) times per minute; 
Special washability test: 120 times per minute; 
Washing test: (30 ± 3) times per minute. 
4. Washable brush: Equipped with 56 clusters of nylon 66 bristles with a diameter of (0.350 ± 0.025) mm and a length of (11 ± 1) mm, with 21 ± 2 bristles in each cluster; 
5. Power Supply: AC 220V 70W. 
Applicable standards (For different standards, different accessories need to be equipped) 
QB/T 3805-1999 Polyvinyl Chloride Wall Paper 
QB/T 4034-2010 Wallpaper - Appendix D Test for Adhesive Wipeability, Appendix E Determination of Washability