An inkjet ink comprising a plurality of liquids containing a polymerizable compound, a polymerization initiator, a colorant, and two compounds which react with each other to form an aggregate or become viscous when mixed with each other. There is no liquid containing both of the compounds capable of reacting with each other. The compounds capable of reacting with each other may be a compound having an acidic moiety and a compound having a basic moiety. Also provided is an image-forming method using the inkjet ink.

Inkjet ink and image-forming method using the same

Provided is an aqueous pigment ink composition which can be used for writing instruments utilised for writing boards such as white boards and black boards and which is excellent in a waterproof fixing property and excellent as well in erasability with a wet matter. The composition is aqueous pigment ink composition comprising at least a masking pigment, a styrene-acrylate resin and/or a styrene-maleate resin, trehalose, a fluorinated surfactant and water.

Water-based pigment ink composition

PROBLEM TO BE SOLVED: To provide a treatment method of a solid waste in the method for treating solid waste such as incineration ash, soot dust, slag, sludge, soil and the like containing a toxifying metal by adding a metal scavenger thereto and immobilizing the metal with the metal scavenger to detoxify, which solves the problems in the conventional method that can not scavenge the metal in the solid waste accurately due to the insufficient permeability of the metal scavenger to solid waste, suffers low immobilization property of the metal with the metal scavenger having high permeability to the solid waste and causes the elution of the immobilized metal when calcium which has not been immobilized is eluted because calcium in the solid waste can not be immobilized, and further needs complicated procedures for removing the sticked solid waste because the waste treated by the conventional method is easy to stick to a tranferring device and a processing device. SOLUTION: The solid waste treatment agent is composed of an acidic compound, at least one surfactant selected from an anionic surfactant, an amphoteric surfactant and an acid base of an amphoteric surfactant and the metal scavenger. COPYRIGHT: (C)2006,JPO&NCIPI

Solid waste disposal agent and treatment method of solid waste

PROBLEM TO BE SOLVED: To provide a treating method having excellent flocculation of a suspended substance, obtaining a treated liquid having smaller discoloring and capable of removing molybdenum in a waste liquid to sufficiently low concentration in spite of the molybdenum containing concentration of a raw waste liquid. SOLUTION: The method for treating waste liquid having molybdenum includes the first process for loading an oxidizing agent into the waste liquid having molybdenum with a pH of 3 or lower, the second process for loading a sulfurizing agent until an ORP (oxidation-reduction potential) value becomes a minus to react, the third process for loading the oxidizing agent and the forth process for loading a slaked lime slurry, adjusting the pH of the waste liquid to 6 to 8 and carrying out solid-liquid separation, wherein only one of the oxidizers used in the first and third processes is ferric chloride. COPYRIGHT: (C)2006,JPO&NCIPI

Method for treating waste liquid including molybdenum

PROBLEM TO BE SOLVED: To produce an inorganic heavy metal fixing agent which detoxifies harmful heavy metals contained in a heavy metal-containing solid waste safely stably at a low cost, and also to provide its production method and further a method for fixing heavy metal using the heavy metal fixing agent. SOLUTION: The heavy metal fixing agent of the heavy metal-containing solid waste is formulated with an agent for releasing sulfur ions, alkali hydroxide, and sulfur. The heavy metal fixing agent is produced by mixing the agent for releasing the sulfur ions with the alkali hydroxide and then dissolving the sulfur into the mixture. COPYRIGHT: (C)2008,JPO&INPIT

Heavy metal fixing agent of heavy metal-containing solid waste, its production method, and method for fixing heavy metal

PROBLEM TO BE SOLVED: To obtain a treating agent free from the risk of the generation of hydrogen sulfide gas and high in stability and reliability to the water insolubilization by using dithioglycolic acid and/or the salt as the treating agent in a method for insolubilizing harmful metals contained in a waste in water. SOLUTION: In the case of insolubilizing the harmful metals in water by treating a liquid waste containing the harmful metals such as Hg, Pb from a plating plant or the like with the treating agent, dithioglycolic acid and/or the salt is used as the treating agent. The dithioglycolic acid and/or the salt is produced by allowing thioglycolic acid to react with an adequate oxidizing agent to make dithioglycolic acid and neutralizing it with an alkali agent. The kind of the salt can be changed by changing the kink of the alkali agent and, in such a case, one or more kinds selected from a group consisting of sodium salts, potassium salts, ammonium salts and calcium salts are used.

Detoxicating method of waste

PROBLEM TO BE SOLVED: To provide an ink capable of being used on indoor or outdoor signboards, bulletin boards, etc., capable of forming water-resistant coating films which can be easily peeled off after used, permitting the repeated employment of the bulletin boards, etc., hardly generating color irregularity and uneven coating films similarly as in cases using conventional inks, and having a problem on gloss, etc. after dried. SOLUTION: An aqueous ink comprises a water-soluble emulsion prepared by mixing a surfactant, an unsaturated fatty acid and a coloring agent with a binder comprising a vinyl acetate-based resin, an acrylic resin or a synthetic resin. An oily ink is prepared by mixing an organic solvent, an unsaturated fatty acid and a coloring agent with a binder comprising a vinyl acetate-based resin, an acrylic resin or a synthetic resin. The inks can be applied to various kinds of fields such as felt pens, markings in civil engineering and construction fields, blackboards, boards for training penmanship and new painting methods, and contribute to energy saving, waste reduction, etc.

Inks capable of being peeled off

PROBLEM TO BE SOLVED: To high-efficiently remove soot staining through simple operation by spraying chemicals against a soot-stained part and burning without disassembling a structure. SOLUTION: A method to remove soot staining occurring in the interior of a combustion heating device having a combustion part and a heat-exchanger of heat generated by combustion comprises (a) a process wherein combustion by a combustion part is stopped and a heat-exchanger is heat-dissipated or cooled, (b) a process wherein chemicals containing an alkali agent, a surfactant, and a foaming agent is sprayed against or applied on a soot stain adhered surface, and the soot staining is treated by the chemicals, and (c) a process wherein combustion by a combustion part is restarted to remove an adhering substance, or (C') a process wherein washing by using water is executed to remove the substance.

Method for removing soot staining

PURPOSE:To prevent harmful metal ion from eluting and carry out landfill waste disposal or marine waste disposal by adding water solution of organic high molecule containing a chemical agent for liberating sulfur ion and carboxylic acid, kneading therein, adding soil cement and solidifying the same or making the same into a solid CONSTITUTION:Water of property volume is added to an industrial waste such as slag containing harmful heavy metal, smuts and slug to form a paste-like material, and a chemical agent for liberating sulfur ion and water solution of organic high molecule containing carboxylic acid are added and kneaded while the material is agitated, and soil cement is added, solidified or made into a solid to prevent harmful metal ion from eluting, and disposed The organic high molecule containing carboxylic acid is chemically adsorbed with sulfide crystallites to bond a number of particles and form strong, rough and large particles, and the molecule is composed mainly of sodium polyacrylic acid and containing amide and ester partly As for the chemical agent for liberating sulfur ion, sodium sulfide, sodium hydrosulfide, sodium polysulfide or the like is used

Method of turning industrial waste containing harmful heavy metal into harmless substance

PROBLEM TO BE SOLVED: To convert molybdenum and other heavy metal, etc. to a hardly soluble solid compd. by a simple method in a treating method in which the molybdenum incorporated in waste waters from various kinds of plants, exuding water in a reclaimed treatment site, exuding water from various kinds of wastes and other various kinds of waste waters is removed and highly hydrated sludge and powder and solid are allowed to react with a chemical by adding water. SOLUTION: In a treating method in which waste water containing a heavy metal is treated by adding a sulfide treating agent, molybdenum in the waste water is converted to a hardly soluble solid compd. to be separated and removed through an adding stage of the sulfide treating agent liberating a sulfur ion and an adding stage of a water soluble metallic compd.. In this way, the treatment can be performed with an existing treating device, the operation is easy, the using amount of the chemical is small, the generation of gas is suppressed and a decoloring treatment is executed simultaneously to the waste water of dye and pigment.

Sakuma Eizo

Papers

Detoxicating method of waste

Inks capable of being peeled off

Method for removing soot staining

Method of turning industrial waste containing harmful heavy metal into harmless substance

Treatment of molybdenum-containing waste water