Abstract: A method of identifying the output energy, main wavelength, position, pattern, etc., of light, which comprises irradiating a photosensitive coloring medium comprising a base material, a heat-sensitive coloring material, and a light absorptive material releasing heat sufficient for coloring the heat-sensitive coloring material by absorbing the light and identifying the output energy, main wavelength, position, pattern, etc., of the light from the colored extent thereof.

Abstract: The present invention relates to a color-former having microcapsules which comprise an electron-donating colorless dye dispersed in a hydrophobic liquid. The present invention provides a color-former using both an electron-donating colorless dye and a hydrophobic liquid which previously were unable to be used because of the lack of solubility. A uniform and stable dispersion of electron-donating colorless dye in a hydrophobic core liquid is prepared by using oil-soluble non-ionic surfactant.

Abstract: The method for avoiding pitch troubles includes the treatment with an acylglycerol lipase. The method of the present invention overcomes the pitch troubles in a process for the production of mechanical pulp and/or mechanical pulp-containing paper.

Abstract: An ink jet recording sheet providing an image by the use of an aqueous ink containing a water-soluble dye comprises a substrate having thereon a specific ink receptive layer. This ink jet recording sheet has excellent properties under maintaining the paper-like figure and feeling of an uncoated sheet.

Abstract: This invention relates to a method for measuring a gloss profile of the surface of materials as paper, specifically coated paper, synthetic resin film, metals and the like.This method comprises the step of applying a spot of a monochromatic ultraviolet light to the surface of sample, moving the spot on the surface of the sample, photoelectrically converting a reflected light of each spot, obtained with a same reflective angle as an incident angle, and comparing and calculating the reflectance to determine the gloss profile.

Abstract: A heat-sensitive recording material has a support and a color-developing layer which comprises as an organic color-developing agent 4-hydroxy-4'-n-propoxydiphenylsulfone and as a stabilizer a particular stabilizer.This heat-sensitive recording material is suitable for a high density-and speed-recording and is superior in the thermal preservability.

Abstract: A heat-sensitive recording sheet has on a support a color-developing layer which comprises a colorless or pale colored basic chromogenic dye and an organic color-developing agent, wherein the organic color-developing agent comprises both 4-hydroxy-4'-n-propoxydiphenylsulfone and a particular phenolic substance. The sheet of this invention provides excellent writing quality and superior thermal responsibility.

Abstract: Features of the present invention are connected with an optical recording medium which comprises a substrate, a heat-senstive color-developing layer containing a basic dye and an organic developer, and a light-absorbing layer containing a near infrared absorbent, the aforesaid layers being superposed upon the substrate, a reflectance at the dominant wave length of a laser beam on the surface of the recording medium being from 15 to 65%; a method for recording by irradiating the optical recording medium with a laser beam condensed by a condenser having a focal length of 0.5 mm or more and a numerical aperture (N.A) of 0.1 to 0.5; and a device for use in the above-mentioned method.

Abstract: A thermosensitive recording sheet comprising a support and a thermosensitive color developer layer thereon containing a basic leuco dye and an organic color developer, said layer containing a bis-phenyl sulfone compound selected from bis-(3-phenyl-4-hydroxyphenyl)sulfone and bis-(2-methyl-4-hydroxy-5-cyclohexylphenyl)sulfone as the organic color developer.

Abstract: A novel optical recording medium is here disclosed in which an underlayer and a heat-sensitive color-developing layer are laminated in this order onto a base material, the underlayer containing a near infrared absorbent, the heat-sensitive color-developing layer containing a basic colorless dye and an organic developer. The near infrared absorbent may be a dispersible near infrared absorbent which absorbs a wave length in a near infrared region of 0.7 to 2.5 .mu.m, and this dispersible near infrared absorbent is graphite, copper sulfide, lead sulfide, black titanium or tri-iron tetroxide. A transparent protective layer may be superimposed on the heat-sensitive color-developing layer.

Abstract: A heat-sensitive recording sheet of this invention comprises in a heat-sensitive color-developing layer both 4-hydroxy-4'-n-propoxydiphenylsulfone as an organic color-developing agent and a particular fluorane-leuco dye. This sheet provides an intense, clear image, less discoloration, and stable brightness.

Abstract: The present invention is related to an optical recording medium comprising a substrate, a light-absorbing layer containing a near infrared absorbent and a heat-sensitive color-developing layer, these layers being superposed upon the substrate. The near infrared absorbent which is used in the present invention is prepared by mixing and heating a thiourea derivative and a metallic compound. This near infrared absorbent has relatively uniform and strong absorption spectra all over the near infrared region, and therefore, on the optical recording medium of the present invention, an image having a high resolution can be directly obtained by the irradiation of the near infrared rays.

Abstract: A packaging machine for forming a web of packaging material into a vertical tube, filling contents into the tube, dividing the tube into lengths each corresponding to one container and forming each length into a baglike container. The machine comprises a filling device for filling a liquid into the tube to a specified level with the lower end of the tube closed, and a cleaning device for cleaning a required portion of the filling device. The filling device has a vertical filling pipe to be covered with the tube. The cleaning device has a vertical tubular jacket having a top wall and covering the upper portion of the filling pipe, a bottomed tubular cleaner removably connectable to the jacket for covering the lower portion of the filling pipe, and a cleaning liquid collecting duct removably connectable to the jacket. A cleaning liquid is supplied to the filling pipe with the duct connected to the jacket to clean the pipe and is thereafter collected through the duct.

Abstract: A coating material for a pressure-sensitive recording sheet comprises both microcapsules A and microcapsules B, wherein the microcapsules A contains a solvent S.sub.1 which dissolves a colorless dye for a pressure-sensitive recording sheet, and the microcapsules B contains a dye-free solvent S.sub.2 which has no ability of dissolving dye and which has a lower boiling point than the solvent S.sub.1. The pressure-sensitive recording sheet using this coating material provides an improved thermal smudge without the deterioration of the image density, etc.

Abstract: A waste paper de-inking system of this invention agitates and mixes waste paper dissolving slurry and treating gas by a multi-stage type vapor-liquid mixer before a floatator treating step, separates and finely pulverizes ink and sticky matters adhered to fiber in the waste paper dissolving slurry and sufficiently absorbs and contains the treating gas in the slurry before reaching the lower most stage to facilitate de-inking operation in later floatators. Further, the high tower multi-stage vapor-liquid mixer can be utilized also as a floatator to reduce a required floor area and required power consumption of the system.Further, high temperature exhaust gas containing SO.sub.2 produced in a factory is utilized as the treating gas to perform various operations, such as desulfurization, heat recovery, bleaching and also purification of a factory environment, thereby a more economical waste paper de-inking system is provided.

Abstract: A heat sensitive recording material having a support and a color-developing layer which comprises both as a colorless basic chromogenic dye at least one of a particular fluorane-type leuco dye and a particular divinyl compound, the heat-sensitive recording material of this invention having superior thermal responsibility, light resistance, weather resistance, oil resistance and optical readability in the near infrared region.

Abstract: A thermosensitive recording sheet having a thermosensitive color developer layer containing a basic leuco dye and an organic color developer, said layer containing a compound of the formula ##STR1## as a sensitizer.

Abstract: Apparatus for moving a stack of folded cartons from a first container to a second container in an automatic carton feeding apparatus and providing support for the stack of folded cartons to prevent individual ones of the folded cartons from tumbling out of the stack during such movement. Two piston and cylinder assemblies are utilized for engaging opposite ends of the stack of folded cartons.

Abstract: A paper container for containing liquid such as milk and juice is disclosed. The container is formed of a thick paper provided thereon with vertical and horizontal folding lines intersecting each other at right angles. The intersecting portions of the folding lines are such formed as to be different in configurations for a predetermined length. In this way, splits and pin holes can be prevented from occurring when the thick paper is folded along the grooves to build up a container.

Abstract: A heat-sensitive recording material including a support and a color-developing layer comprising an electron doner, an electron acceptor and a fluorescence-dyestuff and/or pigment. The heat-sensitive recording material is superior in both readability in an irradiation of UV-ray and optical readability in near infrared region.