| abstract |
The purpose of the present invention is to provide a porous support that is less likely to cause a curl mark (less likely to cause MD curl). The porous support of the present invention is a porous support having a polymer porous layer on one surface of a nonwoven fabric layer, and the nonwoven fabric layer has a bending hardness in the MD direction of 1.2 to 2.1 g/cm 2 The nonwoven fabric layer is impregnated with a polymer as a material for forming the polymer porous layer, and the impregnation rate of the polymer impregnated into the nonwoven fabric layer is 25 to 34% by weight based on the total weight of the polymer in the polymer porous layer and the polymer impregnated into the nonwoven fabric layer. |