| 摘要 |
PROBLEM TO BE SOLVED: To prevent the blocking between the surface and the rear face of an acceptive sheet at the time of storing at the high temperature and control the increase of friction coefficient by adding an organic pigment latex as a binder on a rear coated layer. SOLUTION: Since a main constituting component of an organic pigment latex is polystyrene, its glass transition temperature is higher is compared with that of a resin binder such as acryl resin or acryl emulsion used in general for a rear coated layer. In the case of using combinedly another binder with the organic pigment latex, the proper amount of use of the organic pigment latex is approximately 50-100wt.% of the total binder component. When the blend ratio is too small, a contact area of the rear coated layer with the surface of an acceptive sheet is increased, and also the glass transition temperature becomes lower and resistance to water is sometimes lowered. An antistatic agent or electron conductive inorganic powder is contained in the rear coated layer for controlling the static electrification. Although the coating amount of the rear coated layer is not particularly restricted, it is preferable to adjust in the range of approximately 3-15g/m<2> . |
