摘要:
A nonwoven fabric having an average breaking length in each of the machine and the transverse directions at 5 % elongation of 4.0 km or longer and an air permeability of 0.2 to 10.0 cc/cm 2 .scc; and a semipermeable-membrane support comprising the nonwoven fabric. The nonwoven fabric can be produced by using polyester-based fibers preferably having a birefringence (Δn) of 0.170 or higher and a heat contraction stress at 200 °C of 0.10 to 0.60 g/d and heat-fusible binder fibers to form a web and hot-pressing it.
摘要翻译:机器和横向方向的平均断裂长度在5%伸长率4.0千米以上,透气度为0.2〜10.0cc / cm 2的无纺布.scc; 以及包含所述非织造织物的半透膜支撑体。 无纺布可以通过使用优选具有0.170以上的双折射(DELTA n)和200℃的热收缩应力为0.10〜0.60g / d的聚酯系纤维和热熔粘合纤维来形成网 并热压它。
摘要:
The present invention provides a record sheet used in an electro-coagulation printing method for forming characters and images on a cylinder as an electrode with an ink which coagulates with electric charge and for transferring the characters and images to the record sheet, wherein the wet time is 15 milliseconds or less, obtained from the absorption curve of pure water measured by a dynamic scanning absorptometer. Preferably, the record sheet has 5 ml/m 2 s -1/2 or more absorption coefficient, and more preferably, has contact ratio measured by a specular reflection smoothness tester under a pressure of 40 kg/cm 2 with a ray having a wavelength of 0.5 µm is 40 % or more. The record sheet can be used for various print sheets, in particular, for business form sheets and newspaper sheets.
摘要:
A nonwoven fabric having an average breaking length in each of the machine and the transverse directions at 5 % elongation of 4.0 km or longer and an air permeability of 0.2 to 10.0 cc/cm .sec; and a semipermeable-membrane support comprising the nonwoven fabric. The nonwoven fabric can be produced by using polyester-based fibers preferably having a birefringence ( DELTA n) of 0.170 or higher and a heat contraction stress at 200 DEG C of 0.10 to 0.60 g/d and heat-fusible binder fibers to form a web and hot-pressing it.
摘要:
Fluorescent particles strongly fluorescing upon irradiation with ultraviolet rays, as well as a process for producing the same, are provided. A water-insoluble fluorescent dyestuff and/or pigment fluorescing upon irradiation with ultraviolet rays, and a powdery material including starch, cellulose, other polysaccharides and sugars are mixed and granulated. The surface of granules of the powdery material may be coated with the fluorescent dyestuff and/or pigment. In granulation or coating, a resin having reactive groups reacting with the hydroxyl groups of the powdery material is used in combination, whereby particles excellent in water resistance can be obtained. Further, the interaction between an anionic binder contained in the granules and a cationic material contained in the coating layer or between a cationic binder contained in the granules and an anionic material contained in the coating layer can be utilized to confer water resistance on the particles. By inclusion of the fluorescent particles in paper, there can be provided anti-falsification paper wherein the particles fluorescing in a specific hue can be clearly visually recognized upon irradiation with ultraviolet rays.
摘要:
Anti-falsification paper in which a thread is exposed at window portions provided on the surface of the paper, and which does not produce any cockles even when wound up continuously in a roll and has good appearance in terms of design is provided. This anti-falsification prevention paper is combination paper having at least two paper layers including an outermost layer and the other layer. Window portions are formed in the outermost layer at intervals in a longitudinal direction of the paper. In the window portions there are formed watermarks of letters or pictures, and a thread inserted between the outermost layer and the other layer is exposed at these window portions. The ratio between the length (X) of the window portions in the longitudinal direction of the paper and the length (Y) in the same direction of non-window portions between the window portions is set at 3:1 to 1:2 to securely prevent the formation of cockles during the winding of paper. This setting of the length ratio of the window portions to the non-window portions also offers preferable effect on the design.
摘要:
The present invention provides a record sheet used in an electro-coagulation printing method for forming characters and images on a cylinder as an electrode with an ink which coagulates with electric charge and for transferring the characters and images to the record sheet, wherein the wet time is 15 milliseconds or less, obtained from the absorption curve of pure water measured by a dynamic scanning absorptometer. Preferably, the record sheet has 5 ml/m 2 s -1/2 or more absorption coefficient, and more preferably, has contact ratio measured by a specular reflection smoothness tester under a pressure of 40 kg/cm 2 with a ray having a wavelength of 0.5 µm is 40 % or more. The record sheet can be used for various print sheets, in particular, for business form sheets and newspaper sheets.
摘要:
A method of making watermarked paper, in which lace (2 or 20) is bonded to a wire cloth (3 or 30) so as to form a patterned net which is then mounted as a face wire on a cylinder mold (10) or a dandy roll (1) for a cylinder machine, and the cylinder mold (10) or dandy roll thus treated is used for papermaking. The method enables watermarked paper on which a delicate and complicated lace-like pattern is watermarked with an excellent gradation to be made readily at a low cost.
摘要:
A nonwoven fabric having an average breaking length in each of the machine and the transverse directions at 5 % elongation of 4.0 km or longer and an air permeability of 0.2 to 10.0 cc/cm .sec; and a semipermeable-membrane support comprising the nonwoven fabric. The nonwoven fabric can be produced by using polyester-based fibers preferably having a birefringence ( DELTA n) of 0.170 or higher and a heat contraction stress at 200 DEG C of 0.10 to 0.60 g/d and heat-fusible binder fibers to form a web and hot-pressing it.
摘要:
A lining board for protecting a lithographic plate, characterized in that the coefficient of the static friction between the surface of the lining board in contact with the image forming surface and the image forming surface of the lithographic plate is 0.35 or less, the surface strength of the lining board is 15 or more, or the Clark stiffness of the lining board is 20 to 50. The image forming surface and the lining board are adequately charged and made to adhere to each other in the production process of a lithographic plate so as to form a stack of them. After they are stacked, the charge quickly attenuates, so that the separatability, ejectability, and storability in an automatic plate feeding apparatus are favorable. The lining board and the image forming surface are simultaneously prevented from adhering to each other during heat treatment. The invention is particularly effective for a lithographic plate of a heat mode system in which an image is formed by laser exposure and of a photon mode system.
摘要:
A forgery-proof paper comprises a base paper and small brilliant pieces disposed near the surface of the base paper and made by fragmenting paper coated with a coating liquid which is mainly composed of a nacreous pigment and a binder which is insoluble in cold water and soluble in hot water. Even if forgery is attempted reproduction on a color copying machine, a color of the small brilliant pieces mixed with the base paper cannot be reproduced, so that it is possible to readily discriminate between the real (an original) and the false (a duplicate). The small pieces are firmly bonded to the paper by the action of the binder without the possibility of falling away at the time of printing. In the case where the forgery proof paper is made waste paper, the small brilliant pieces will not adversely affect recovery of pulp.