Abstract:
The present invention aims to provide coated printing papers having fast ink drying properties comparable to those of conventional newsprint, without stickiness, having good printability such as sharpness of printed images comparable to those of coated papers, as well as having the effect of decomposing harmful substances by exposure to light, especially when using penetration drying type news inks. A coated printing paper is provided, comprising a coating layer containing a pigment and an adhesive on a base paper, characterized in that a fine titanium oxide powder having a photocatalytic effect is contained in the coating layer and that the coated paper has an oil absorbency of 20 g/m2 or more under pressure and a Bekk smoothness of 75 seconds or less.
Abstract translation:本发明的目的是提供具有与传统新闻纸相当的快速油墨干燥性能的涂布印刷纸,不粘性,具有良好的可印刷性,例如与涂布纸相当的印刷图像的清晰度,以及具有分解有害物质的作用 通过曝光,特别是当使用渗透干燥型新闻油墨时。 提供一种涂布印刷纸,其包含在原纸上含有颜料和粘合剂的涂层,其特征在于,在涂层中含有具有光催化效果的细氧化钛粉末,并且涂布纸具有吸油性 压力为20g / m 2以上,Bekk平滑度为75秒以下。
Abstract:
The objective of this invention is to provide a recording material that can be recorded by ink with water-soluble dye, particularly to provide an ink jet recording sheet, which provides an excellent combination of in ink absorbency, ink coloration, light resistance, water resistance and surface gloss. One subject of the invention is an ink jet recording sheet having on an ink-receiving support an image preserving layer comprising anionic colloidal silica and zinc oxide particulates with an average particle size of about 15 to 380 nm and having a 75 degree specular glossiness of at least about 25% at the surface. Another subject of the invention is an ink jet recording sheet having on an ink-receiving support, in succession, an image preserving layer comprising anionic colloidal silica and zinc oxide particulates with an average particle size of about 15 to 380 nm and a fixing layer comprising cationic colloidal silica and cationic polymer electrolyte.
Abstract:
The present invention aims to provide coated printing papers having fast ink drying properties comparable to those of conventional newsprint, without stickiness, having good printability such as sharpness of printed images comparable to those of coated papers, as well as having the effect of decomposing harmful substances by exposure to light, especially when using penetration drying type news inks.A coated printing paper is provided, comprising a coating layer containing a pigment and an adhesive on a base paper, characterized in that a fine titanium oxide powder having a photocatalytic effect is contained in the coating layer and that the coated paper has an oil absorbency of 20 g/m2 or more under pressure and a Bekk smoothness of 75 seconds or less.
Abstract translation:本发明的目的是提供具有与传统新闻纸相当的快速油墨干燥性能的涂布印刷纸,不粘性,具有良好的可印刷性,例如与涂布纸相当的印刷图像的清晰度,以及具有分解有害物质的作用 通过曝光,特别是当使用渗透干燥型新闻油墨时。 提供一种涂布印刷纸,其包括在原纸上含有颜料和粘合剂的涂层,其特征在于,在涂层中含有具有光催化效果的细氧化钛粉末,并且涂布纸具有吸油性 压力为20g / m 2以上,Bekk平滑度为75秒以下。
Abstract:
Provide a paper offering good paper strength properties in terms of strength and stiffness, high smoothness and excellent printing quality by adjusting the ash content in paper to a range of 3 to 40 percent by solid weight and allowing the paper to contain a pre-coagulated filler having an average particle size of 10 to 80 μm as measured by the laser diffraction method, wherein such filler is obtained by processing a filler using a composite acrylamide copolymer comprising (A) an anionic polysaccharide and (B) a cationic and/or amphoteric acrylamide copolymer.
Abstract:
A method for manufacturing an inkjet recording medium comprising the steps of: applying a coating color containing a pigment and a binder as major components to at least one side of a base material using a transfer roll coater, subsequently drying coating layer to form an ink absorbing layer, wherein Hercules viscosity of coating color is 5 m Pa·s to 30 m Pa·s and pigment contains a synthetic silica having an oil absorption of 90 ml/10 g to 200 ml/100 g, a BET specific surface area of 45 m2/g to 200 m2/g and an average particle diameter of 1.0 μm to 3.0 μm and/or a precipitated calcium carbonate-silica composite having an oil absorption of 100 ml/10 g to 250 ml/100 g, a BET specific surface area of 5 m2/g to 150 m2/g and an average particle diameter of 1.0 μm to 10 μm.
Abstract:
A method for manufacturing an inkjet recording medium comprising the steps of: applying a coating color containing a pigment and a binder as major components to at least one side of a base material using a transfer roll coater, subsequently drying coating layer to form an ink absorbing layer, wherein Hercules viscosity of coating color is 5 m Pa·s to 30 m Pa·s and pigment contains a synthetic silica having an oil absorption of 90 ml/10 g to 200 ml/100 g, a BET specific surface area of 45 m2/g to 200 m2/g and an average particle diameter of 1.0 μm to 3.0 μm and/or a precipitated calcium carbonate-silica composite having an oil absorption of 100 ml/10 g to 250 ml/100 g, a BET specific surface area of 5 m2/g to 150 m2/g and an average particle diameter of 1.0 μm to 10 μm.
Abstract:
A printing sheet which prevents setoff while transferring a sufficient quantity of ink and maintains necessary dot uniformity can be obtained by ensuring characteristics that the centerline average roughness showing the larger value is 1.0-3.5 &mgr;m and the ratio of centerline average obtained by dividing the larger value by the smaller value is less than 1.15 where said values are chosen at the point where the difference between the centerline average roughness in a certain direction and the centerline average roughness at right angles to said direction is maximal. Further, the abovementioned quality is further improved by appropriately ensuring that the oil absorbability is more than 4 mg/cm2 and less than 7 mg/cm2 when the contact time between the oil component having a surface tension of 27-30 mN/m at 20° C. and the printing sheet is 5 seconds and/or that the median pore diameter is 1.7-3.5 &mgr;m, in addition to the abovementioned characteristics.
Abstract:
An ink jet recording paper, which is excellent in ink absorbency and color-developing properties and has dull-tone glossiness, comprising an ink-receiving layer and at least two colloidal silica layers applied successively onto a support, each of said colloidal silica layers comprising chain colloidal silica as a main ingredient, wherein at least the colloidal silica layer contacting the ink-receiving layer contains no binder and has a coverage of about 1 to 3 g/m2, and the coverage of other colloidal silica layer is about 1 to 6 g/m2.
Abstract translation:一种喷墨记录纸,其油墨吸收性和显色性优异且具有暗色光泽度,包括油墨接收层和连续施加到载体上的至少两种胶体二氧化硅层,每个胶体二氧化硅层包含 链胶体二氧化硅为主要成分,其中与油墨接收层接触的至少胶体二氧化硅层不含粘合剂,其覆盖率为约1〜3g / m 2,其他胶体二氧化硅层的覆盖率为约1〜6 g / m2。