108results about How to "Good deinking effect" patented technology

The lithographic printing plate support includes an aluminum plate and an anodized film formed on the aluminum plate and micropores extend in the anodized film in a depth direction from its surface opposite from the aluminum plate. Each of the micropores includes a large-diameter portion having a predetermined shape and a small-diameter portion having a predetermined shape. The lithographic printing plate support has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life, and excellent deinking ability in continued printing and after suspended printing.

The invention discloses a method for improving a removal effect of ink in waste paper pulp. The method comprises the steps of: breaking waste paper, and diluting obtained pulp; then relative to the absolute dry mass of the paper pulp, adding 0.0025 to 0.5 percent of nonionic deinking agent into the pulp; at the same time, adding an anionic dispersant with a dispersion effect, wherein the consumption of the anionic dispersant is 0.001 to 0.3 percent of the absolute dry mass of the paper pulp; and floating at the temperature of between 40 and 50 DEG C after the mixture is stirred uniformly to remove the ink in the waste paper pulp, wherein the anionic dispersant is anionic polyacrylamide, or is one of polyacrylate and polymethacrylate. The method adopts the cheaper dispersant to compound the deinking agent with higher cost for floatation, which promotes deinking effect, and also solves the problems of cost increase caused by overhigh consumption of the deinking agent and the decrease of economic benefit caused by excessive fiber loss.

The invention discloses a deinking method of waste paper alkaline enzyme, comprising the following steps: carrying out soaking, disintegration, enzyme processing and washing on the waste paper to obtain the processed pulp; adding surface active agent when soaking at a usage amount of 0.10%-2.00%wt, wherein the enzyme processing is carried out under the conditions that the pH is 6-11, the temperature is 45-75 DEG C, and xylanase 30-150 mu/g of oven dry stock, pectinase 40-100 mu/g of oven dry stock and amylase 50-120 mu/g of oven dry stock are adopted to process the disintegrated waste paper for 10-30min. Cellulase can also be added in the enzyme processing procedure with an added quantity of 100 mu/g of oven dry stock. The processing effect is better if enzyme activator, such as sodium chloride is added in the enzyme processing procedure; and the alkaline enzyme can be bathed and used in a matching manner with a plurality of surface active agent, even with compounds with certain oxidation functions; and the process of waste paper deinking technology can be shortened and the bleaching process in deinking by the conventional enzyme method can be left out.

The invention relates to a deinking agent, in particular to an environment-friendly mixed waste paper deinking agent. The prior waste paper deinking agent can only deink one class of waste paper in general. The invention provides the environment-friendly mixed waste paper deinking agent with wider application range, which is characterized in that the weight percentage of every component is: 5 to 10 percent of polyoxyethylene nonyl phenyl ether, 25 to 30 percent of fatty alcohol polyoxyethylene ether sodium sulfide, 5 to 10 percent of fatty alcohol polyoxyethylene ether, 10 to 20 percent of sulfonic acid, 4 to 10 percent of ethanol and the balance being water. Compared with the prior deinking agent, the deinking agent of the invention has the advantages of wide application range, good deinking effect and the like, and is few in components and simple in method.

The invention relates to the technical field of deinking agents, in particular to an environment-friendly deinking agent for toughened glass and a preparation method of the environment-friendly deinking agent. The deinking agent is prepared from 30%-70% of deionized water, 0.5%-8% of a corrosion inhibitor, 5%-15 % of a penetrant, 5%-20% of an inorganic basic compound, 5%-15 % of an aqueous stabilizer, 5%-20% of a solvent and 5%-15% of a mixture of alkyl alcohol ether carboxylate and alkyl polyoxyethylene phosphate. The raw materials of the deinking agent are all environment-friendly agents, and halogen, benzene and other toxic solvents are not contained; screen printing ink on the toughened glass of various tablets, touch screens and the like is removed under the synergistic effect among the components of the deinking agent, the deinking effect is good, and the deinking speed is high; besides, the homogeneous phase can be kept and a solution does not layer in a heating or high-temperature use process, and the chemical performance of the deinking agent is more stable.

A deinking machine for treating the paper-making sewage is composed of a casing with liquid inlet and outlet, an ink collector with dregs outlet, and a millipore aerating unit with air inlet tube for blowing the air bubbles in the sewage by high-pressure air. When the air bubbles are diffused in the sewage, the ink in the sewage is adsorbed by them. When said air bubbles are broken on the surface of sewage, the ink is collected by the ink collector and then discharged via dregs outlet.

The invention provides a water-based compound deinking agent which has the following components based on weight percentage: 0.1-3% of alkyl poly propylene fatty alcohol polyoxyethylene ether phosphate, 0.1-5% of alkyl alcohol polyoxyethylene ether sulfate, 1-5% of NaOH, 2-8% of NaSiO3, 0.5-5% of H2O2, 0.5-8% of anti-ink deposition agent, and the remaining amount of water. The water-based compound deinking agent of the invention has the advantages that the invention has good emulsification, dispersion and catching performances and can reduce the re-deposition of printing ink particles in the deinking process, improve the pulp brightness, reduce the residual ink particles and improve the deinking effect so as to achieve high-efficient and environmental-friendly recycling of waste newspapers.

The invention discloses an effective waste paper deinking agent. The effective waster paper deinking agent is composed of, by weight, 38%-45% of surfactant, 38%-45% of enzyme-coated microcapsules and 20%-30% of auxiliaries. The effective waste paper deinking agent is suitable for being used for conducting deinking treatment on waste corrugated paper, waste news paper, color offset printing news paper, waste book and magazine paper, waste office paper and laser and electrostatic printing paper; lipase and cellulase are prepared into microcapsules through an emulsifying method, the preparation process is simple, stability is high, the activity of enzyme can be kept for a long time by adding the microcapsules into the chemical deinking agent, the chemical deinking agent is rich in ingredients and scientific in matching, the lipase and the cellulase are released slowly after waste paper pulp is added, deinking can be conducted through a chemical method and a biological method, the deinking effect on waste paper is good, whiteness is high, speckiness is low, the fiber is soft, reusability is high, the pollution degree caused by sewage generated in the later period is low, processing is simple, the cost is saved, and pollution to the environment is avoided.

The invention discloses a flotation deinking machine, it includes deinking machine shell, liquid feeding mouth installed on one side of deinking machine shell and liquid discharging mouth installed on another side of deinking machine shell, ink-gathering device installed in the upper of the cavity of deinking machine shell and the slag hole connected with the ink-gathering device, the bottom of said cavity of deinking machine shell is equipped with several micropore aeration device which can transmit flotation foam to the liquid in deinking machine shell, and air intake pipes connected with micropore aeration device, said several micropore aeration device is equipped with foam-generating hole which can generate foams in different diameter; due to the distribution of the diameter and the amount of flotation foam are matched with the size and the amount of the ink particles contained in the flotation pulp, ink particles in different diameters can be bright away by the flotation foam, the deinking is more thorough and the pulp quality is higher.

The invention relates to a waste paper deinking agent with excellent performance. The waste paper deinking agent is prepared from the following ingredients by a certain weight ratio: carboxymethyl modified fatty-acid polyoxyethylene ether, fatty-acid polyoxyethylene ether and A-107. A preparation method of the deinking agent disclosed by the invention comprises the step of uniformly mixing carboxymethyl modified fatty-acid polyoxyethylene ether, fatty-acid polyoxyethylene ether and A-107, thereby obtaining the deinking agent. According to the deinking agent disclosed by the invention, the used synthesized organic-acid polyoxyethylene block ester product is an ether-ester type nonionic surfactant, so that the deinking agent has the advantages of strong oil-and-fat solubilization property, easiness in biodegradation, environment-friendliness and the like.

The invention discloses partially esterified isomerous alcohol block polyether, a method for manufacturing the same, and an application of the partially esterified isomerous alcohol block polyether in deinking of waste paper. The partially esterified isomerous alcohol three-block polyether reinforces the intermiscibility of a surfactant and ink on the basis of maintaining the surface activity, and has the advantages of low dosage, strong emulsifying and dispersing capacities, superior deinking effect and wide application range. Simultaneously, the partially esterified isomerous alcohol block polyether also has the characteristic of friendly environment. The chemical structural formula is as above.

The invention belongs to the technical field of waste paper pulping and papermaking, and discloses a waste paper deinking and magnesium base hydrogen peroxide bleaching method. The method comprises the steps of waste paper pulp raw material preparation, surfactant pretreatment, pulping, ultrasonic flotation, washing deinking, hydrogen peroxide bleaching, paper making and the like. Through innovation and improvement of a deinking process, pretreatment of a surfactant is performed before pulping operation, and through the synergistic effect of the surfactant acrylic acid and isophorone diisocyanate, the subsequent waste paper deinking effect can be effectively enhanced, and the paper strength is enhanced. A hydrogen peroxide bleaching process is improved, laccase is used as a pre-bleaching agent, and magnesium sulfate, sodium silicate and sodium hydroxide are used as bleaching protective agents; hydrogen peroxide is used as a bleaching agent, and sodium isononanoyloxybenzenesulfonate isused as a bleaching aid, so the bleached waste paper deinking pulp is good in strength, high in whiteness and good in whiteness stability, and the COD value in bleaching waste liquid is remarkably reduced.

The invention relates to an efficient deinking agent for mixed waste paper, and mainly solves the problems of poor deinking effect and serious environmental pollution in the prior art. The efficient deinking agent for the mixed waste paper comprises the following components in parts by weight: 15-25 parts of polyoxyethylene fatty alcohol sodium sulfate, 15-25 parts of alkylphenol polyoxyethylene, 10-15 parts of Twain-80, 25-30 parts of sodium dodecyl benzene sulfonate, 10-15 parts of attapulgite, 5-10 parts of anhydrous sodium metasilicate, 5-10 parts of ethylenediamine tetraacetic acid. By adopting the technical scheme, the problems are well solved, and the efficient deinking agent can be used for waste paper recycling.

The invention discloses a waste paper deinking agent. The waste paper deinking agent is composed of, by weight, 40%-50% of a non-ionic surface active agent, 35%-40% of lipase microcapsules and 20%-30% of auxiliary materials. The waste paper deinking agent is suitable for deinking treatment of waste corrugated paper, waste newsprint, colored offset newsprint, paper of waste books and magazines, office waste paper and laser and electrostatic copying paper. Microencapsulation is conducted on lipase, preparation is easy, the stability is strong, when the microcapisulazed lipase is added in a chemical deinking agent, the activity of the lipase is maintained, the chemical deinking agent is rich in components, and dosing is scientific; after waste paper pulp is added, the lipase is slowly released, deinking can be conducted by using a chemical method and a biological method simultaneously, the waste paper deinking effect is good, the whiteness is high, the dirt count is small, fibers are soft, the reutilization performance is strong, the degree of contamination of sewage in the later period is small, the treatment is easy, the cost is reduced, and the environment is protected.