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WO/1981/001022A1 |
The toners used for printing in the electrophotography processes such as xerography or laser printing are removed from copy paper. In the process, the paper is pulped to form an aqueous slurry. The toner is removed from the paper with a ...
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WO/1980/002411A1 |
A bale of wastepaper containing incorporated therein an effective amount of water-soluble or water-dispersible deinking chemical for deinking said wastepaper, said deinking chemical consisting essentially of synthetic organic surface act...
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WO/1980/001085A1 |
The de-inking of paper pulp is rendered more efficient and capable of producing a high quality recycled paper for printing purposes by the addition of surfactants having a chemical character similar to surfactants naturally present in th...
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WO/1980/000423A1 |
A suspension of fibre material resulting from waste papers and charged with air bubbles is injected into a flottation cell (1) through injectors, the small air bubbles rising upwards through the suspension. The printing ink and other imp...
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JP7473197B2 |
To provide an apparatus for manufacturing recycled paper for processing shredded scrap paper from a shredder which is compact in a simple structure, can be installed in a place where an installation space is limited, such as an office wh...
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JP7458802B2 |
The purpose of the present disclosure is to provide a method for producing a pulp fiber for carboxylated cellulose nanofibrillation use whereby it is possible to form a carboxylated cellulose nanofiber having an excellent balance between...
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JP7446384B2 |
Provided is a method that, when pulp fibers are recovered from used absorbent articles that have been put into collection bags, makes it possible to safely and sanitarily crush the used absorbent articles while suppressing costs. A metho...
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JP7426805B2 |
To provide a composition for paper with high viscosity, and to provide recycled paper with high strength and without defects.A composition for paper of the present invention is the composition for paper containing pulp and a water-absorb...
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JP7426230B2 |
To prevent clogging of an on-off valve.A waste material disposal system 10 includes: a process tank 39 which houses fragments F of disposable diapers D each including polymers P in a water absorption state and a process liquid T for redu...
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JP2023551320A |
The present invention relates to a method for reducing bacterial endospores in an aqueous fiber suspension comprising recycled cellulosic fibers, wherein the fiber suspension preferably has an original endospore content of 10000 CFU/ml o...
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JP7378218B2 |
To produce waste paper pulp from odor-containing waste paper by decreasing odor of odor-containing waste paper, and to enable effective utilization of resources.The method of producing waste paper pulp from odor-containing waste paper, i...
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JP7361597B2 |
To provide a separation and recovery of a pulp fiber and a high water-absorbing polymer with excellent recovery property of the pulp fiber and the high water-absorbing polymer respectively.A method for separation and recovery of a pulp f...
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JP7355714B2 |
The purpose of the present disclosure is to provide a method for producing cleaned recycled pulp fibers from used sanitary materials said method being capable of forming recycled pulp fibers that have a low nitrogen-containing component ...
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JP7353327B2 |
To provide a method for easily evaluating the cleanliness of a recycling material derived from a used hygiene product.There is provided a method for evaluating the cleanliness of a recycling material derived from a used hygiene product, ...
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JP7340808B2 |
To provide a used paper processor capable of properly controlling a fiber concentration by preventing overflow of a liquid from a storage part even when an error occurs at a liquid level detection part.The used paper processor 1 is assem...
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JP2023126013A |
To provide a method capable of forming recycled pulp fibers in which highly water-absorptive polymers and their residues are unlikely to remain and characteristics are less unlikely to change than when only an oxidizing agent is used to ...
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JP2023101714A |
To provide a method for producing recycled pulp fibers whereby, articles using recycled pulp fibers tend to have uniform whiteness, and the articles using recycled pulp fibers hardly give a feeling of psychological resistance to a user.T...
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JP7300150B2 |
To provide a paper processing apparatus capable of calculating an operation completion scheduled time in consideration of a factor derived from a raw material of paper fed into the apparatus and a factor derived from the aging of the equ...
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JP2023090553A |
To provide a method for producing recycled pulp fibers from used absorbent articles, capable of producing recycled pulp fibers which exhibit high dispersibility, and from which foreign substances are easily detected and removed.There is ...
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JP7300230B1 |
[Problem] To satisfy all of the following conditions when converting waste paper into pulp: efficiency by shortening the process, resolving concerns about costs and supply, reducing environmental load, and ensuring operational safety. pr...
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JP2023082305A |
To provide a technology enabling easy maintenance work of a disk type rotor and an attachment work of a disk type rotor to a rotation drive shaft.A disk type rotor 1 for a treatment machine which at least disintegrates a foreign matter f...
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JP7272812B2 |
To provide a method for producing used paper pulp from a pulp material containing used paper containing gypsum and used paper containing an adhesive, and to provide used paper pulp.A method for producing the waste paper pulp from a waste...
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JP2023517688A |
According to an exemplary aspect of the invention, a method is provided for separating cellulosic and non-cellulosic fibers from a mixed textile material comprising cellulosic and non-cellulosic fibers. The method comprises mechanically ...
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JP7260328B2 |
To provide a technique for manufacturing of a multilayer board paper by using a used paper pulp which has been through a heating dispersion treatment.This invention provides a multilayer board paper containing a used paper pulp manufactu...
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JP7259188B2 |
A method is disclosed for treating aqueous feed by dissolved gas flotation. The aqueous feed originates from industrial processing of fibrous material, where the aqueous feed includes an aqueous phase and solid particulate material suspe...
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JP7251992B2 |
To provide a manufacturing method of a waste paper pulp from a waste paper pulp raw material containing waste paper including gypsum and a waste paper pulp thereof.The manufacturing method of a waste paper pulp includes: a disintegration...
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JP7228992B2 |
To provide a method for efficiently collecting a component member from a used absorptive article without breaking the used absorptive article when the component member of the used absorptive article is recycled.A method for collecting a ...
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JP2023018833A |
To prevent increase in pressure difference between pressure of a downstream side discharge path including a discharge part at which a discharge path and a discharge pipe communicate and pressure of an upstream side discharge path separat...
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JP7219570B2 |
To provide a processing method of used sanitary articles for separation and recovery of constituting components (especially, pulp fiber ) to be reusable.The processing method of used sanitary articles of the present invention is a proces...
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JP7186965B2 |
To provide a white water modifying method and a method for producing wastepaper pulp in a wastepaper pulp production step.The white water modifying method in a process of producing wastepaper pulp from waste paper of a main raw material ...
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JP7179077B2 |
The purpose of the present disclosure is to provide a method for manufacturing a pulp fiber raw material with which it is possible to easily form a fiber composite reinforcing material that includes cellulose nanofibers with a low hemice...
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JP7168350B2 |
Provided is a method that, when pulp fibers are recovered from used absorbent articles that have been put into collection bags, makes it possible to safely and sanitarily crush the used absorbent articles while suppressing costs. A metho...
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JP2022156152A |
To provide a humidification device and a fiber body processing device capable of suitably performing humidification of a humidification object regardless of humidity of outside air.A humidification device is assembled with a circulation ...
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JP2022151323A |
To provide a separation device where a concentration adjustment part adjusting the concentration of a separation liquid containing pulp and SAP is downsized.In a separation device including a separation tank, a concentration adjustment p...
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JP2022145739A |
To provide a method for producing a recycled pulp fiber from a used absorbent article capable of reusing an aqueous solution recovered from a production process and reducing the amount of water used as the aqueous solution.A method of th...
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JP7128469B2 |
To provide a new method capable of detaching an ink component, etc. from a pulp raw material in a floatation step and discharging pitch dispersed in water by the detaching out from a system.A production method of a used paper pulp includ...
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JP7123344B2 |
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JP7120785B2 |
The present invention aims to develop a technique for efficiently preparing deinked pulp from prints made with UV-curable inks. According to the processes for preparing deinked pulp of the present invention, high quality deinked pulp can...
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JP7116932B2 |
To provide a recycling method of a paper diaper, which recovers pulp contained in a used paper diaper during the recycling stage.A recycling method of a paper diaper, which recycles a used paper diaper, includes the steps of: agitating a...
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JP7116933B2 |
To provide a recycling method of a paper diaper, which recovers pulp contained in a used paper diaper during the recycling stage.A recycling method of a paper diaper, which recycles a used paper diaper, includes the steps of: agitating a...
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JP7114523B2 |
Provided is a method which is for producing a recycled pulp fiber from a used absorbent article and by which an aqueous solution recovered in a production step can be reused and the amount of water used as the aqueous solution can be red...
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JP2022114005A |
To provide a deinking resin excellent in deinking properties and a deinking agent, a deinking method, a deinked pulp, and recycled paper which are obtained by using the same.The deinking resin contains a polymer including a constitutiona...
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JP7113785B2 |
Provided is a method for producing softwood-derived pulp fibers for paper, the method being capable of reducing the propensity for the product surface to become rough, and capable of reducing the propensity for the tensile strength to be...
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JP7105632B2 |
To provide a method and an apparatus for disintegration of used paper packages without depending on manpower and by using a disintegration device and for effective utilization of resources by recovery of used raw papers from shredded pro...
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JP7070772B1 |
To provide an easily deinking laminate having excellent deinking property in a paper recycling process and a method for producing the laminate, regardless of the type of active energy ray-curable ink. It is a method for manufacturing an ...
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JP2022072306A |
To provide a manufacturing method of a recycled pulp usable as household papers from a pulp slurry including a paper sludge discharged from a paper mill as a raw material.Disclosed is a manufacturing method of a recycled pulp from a pulp...
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JP2022070920A |
To provide an industrial system for processing various vegetable materials for producing a material having high marketability.A system uses subcritical water extraction technology and includes a pretreatment module and a two-stage extrac...
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JP7056865B2 |
To provide a used paper processing apparatus and a used paper processing method which, when heating the leading part of a processed product, can appropriately heat it even when there is a decrease in temperature due to heat transfer from...
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JP7045980B2 |
The present disclosure provides a method of producing pulp fibers for cellulose nanofiberization from pulp fibers contained in a used sanitary product. A method of producing pulp fibers for cellulose nanofiberization from pulp fibers con...
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JP2022044391A |
To provide a disintegration method and a disintegration system that can sufficiently remove an oil component such as ink included in paper-making raw material such as used paper.A disintegration method of this invention includes a disint...
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