Abstract: A printing and copying paper capable of printing or copying images distinctly on a large scale, without becoming curled or being blocked up in or sent out of machines as two or more than two of the papers being superposed, by means of high temperature high speed printing or copying machines, in which toners are to be fixed at high temperature, comprising a sheet of paper, a white polyethylene coating layer coating on the surface of the paper, said layer being laminated with a transparent heat resistant resin coating layer, or a transparent heat resistant resin film to form a glossy surface, and a transparent polyethylene coating layer coating on the back surface of the paper, said layer being coated with a transparent heat resistant resin coating liquid which is mixed with matting agents.

Abstract: A copying sheet comprising a printing film made of a synthetic resin film and a base film made of a foamed polyester resin film releasably adhering to the printing film, the printing film having formed on the front surface thereof a matting material layer and an antistatic agent layer, the matting material layer including silica having the average particle size of less than 5 microns and having a thickness of 0.5 to 10 microns for the purpose of fixing the powders of towner, the base film having formed on the back surface thereof a matting material layer and an antistatic agent layer, the matting material layer including silica having the average particle size of 3 to 10 microns and having the thickness of 7 to 15 microns for the purpose of preventing copying sheets from being sent out of a copier as two or more sheeting being superposed.

Abstract: An anti-copying composite film comprising a substratum of paper or synthetic resin film, a metallic foil formed on the surface of said substratum and a colored transparent synthetic resin coating layer applied to the surface of said metallic foil, said anti-copying composite film being characterized in that the color of the coating layer is selected in Munsell color system so that the value may be 9 or less than 9 regardless of the hue, while the chroma is selected so that an index calculated in a formula on the base of the difference of the value and the difference of chroma with respect to those of black may be 20 or more than 20.

Abstract: A processed paper for documents protected from being photographically and electrostatically reproduced comprises a paper substrate having a front surface, and a colored ink layer and a silvery ink layer coated over the front surface of the paper substrate, the silvery ink layer having a pattern formed thereon to cause photographic and electrostatic reproductions of information recorded on the processed paper to be illegible due to irregular reflections of light from the pattern on the silvery ink layer.

Abstract: A composite film for bar code labels comprising first and second heat-resisting non-water-absorbing synthetic resin films. On the first film of the composite film bar code can be reproduced by means of a high speed dry process electrostatic copier.

Abstract: A composite film for protecting documents from being reproduced comprising a colored transparent film and a transparent adhesive layer applied to the back of the transparent film.