Used to determine the washability of wallpaper.

Appendix D, E in the QB/T 4034-2010 "Wallpaper" standard

1. The size of the friction head: 50 mm×29mm;

2. Quality of friction head:

① Wipeability test: The total mass of the friction head and the soft polyurethane foam is 100 ± 5g;

②Washability and special washability test: the total mass of the friction head and felt sheet is 550±10g;

③Brushing test: the total mass of the friction head and brush is 600±10g;

3. Friction speed:

①The wipeability and scrubbing ability test: (30±3) times/min;

② Washability and special washability test: (120±10) times/min;

4. Adhesion and wipeability: it adopts flexible polyurethane foam with irregular open-cell structure, its apparent density is 22 soil 1kg/m3, hardness 20.5 soil 2.5N (indentation method), width 291mm, and its length should cover The bottom surface of the friction head is 50mm and can be fixed with a clamp. ②Washable brushes: equipped with 56 clusters of nylon 66 bristles with a diameter of 0.350±0.025mm and a length of 11±1mm, each cluster of 21±2; ③Washable and special washable white 60# felt sheet, its wool The fiber content is 97%, the density is 0.181 soil 0.027 g/m3, and the thickness is 6.0 ± 1.2mm. The felt sheet is 29±1mm wide, and the length should cover the bottom surface of the friction head 50mm, and it can be fixed with a clamp.

5. Appearance size: 850*450*550mm

6. Weight: 40KG

7. Have a patent certificate for utility model technology