disposable underpads : 1)the best hydrophilic nonwovens made of the surface of underpads , which is more coloser to hunman skin and patiens will feel more comfortable and natural . 2) printed PE film , which is anti-slip , and the waterproof film backsheet guarantees hygien and cleaness . 3)the middle woodfluff is imported from America , anti-bacterium , the patients will be feel more comfortable when put it on the bed .