331results about "Old paper after-treatment" patented technology

The invention belongs to the technical field of paper deacidification, and specifically relates to a paper deacidification agent, and a paper deacidification system and a paper deacidification method thereof. The paper deacidification agent comprises nanometer oxide particles, a silane coupling agent and n-perfluorooctane liquid, wherein the nanometer oxide particles are suspended in the n-perfluorooctane liquid after coated by the silane coupling agent, and the nanometer oxide particles can also be replaced by nanometer magnesium hydroxide particles. The paper deacidification system comprises a deacidification liquid storage tank, a centrifugation pump, a deacidification device and a circulation device which are in successive connection, wherein the outlet of the circulation device is respectively connected with the inlet of the deacidification liquid storage tank and the inlet of the deacidification device; a circulation loop is formed between the deacidification device and the circulation device; and the deacidification device is also connected with the deacidification liquid storage tank via a deacidification liquid recovery device. The paper deacidification method comprises the following steps: putting a literature into the deacidification device, then pumping the paper deacidification agent into the deacidification device, shaking the literature, subjecting deacidification liquid to circulation, pumping the deacidification liquid back, and carrying out condensation recovery. According to the invention, safety and effectiveness are obtained; and the paper deacidification agent has the advantages of easy recovery, good effects and low cost.

The invention discloses multifunctional nano compound treating fluid for protecting paper cultural relics. The multifunctional nano compound treating fluid takes deionized water as a solvent, and comprises nano magnesium hydroxide, nano titanium dioxide and hydroxyethyl cellulose, wherein nano magnesium hydroxide accounts for 0.2-1.0% of the weight of deionized water, nano titanium dioxide accounts for 0.1-0.8% of the weight of deionized water, and hydroxyethyl cellulose accounts for 0.2-0.8% of the weight of deionized water. The invention also discloses a preparation method of the multifunctional nano compound treating fluid. The multifunctional nano compound treating fluid can be used for large-area treatment of the paper cultural relics, and can be used for providing protection for deacidification, solidification, light-resistant degradation and mould proofing of the paper cultural relics during a large-area treatment of the paper cultural relics. The pH value of the paper cultural relics treated by the multifunctional nano compound treating fluid can reach an alkalescence degree, and the paper cultural relics have a certain alkali residue, can resist external acid, can be greatly improved in tensile strength, and have a certain antibacterial property.

The invention discloses a pressurizing, atomizing and deacidifying device and a method for pressurizing, atomizing and deacidifying by using same. The device comprises an air pump, an atomizer, a deacidifying reactor, a liquid collector and a distributor; the device is low in manufacturing cost, convenient to use and wash and good in de-acidifying effect, and is suitable for any paper deacidifying agent solution, particularly suitable for deacidification of paper by using an organic deacidifying agent solution and a natural deacidifying agent solution; and the deacidified paper does not deform and is not sticky, ink handwriting is not affected, and the time for air-drying the deacidified paper in a shady place is short. The method comprises the steps of adding a deacidifying agent in the atomizer, introducing the atomized deacidifying agent steam into the deacidifying reactor, and deacidifying the acidified paper; and the pH value of the de-acidified paper is raised, therefore, the purpose of deacidifying is achieved. In the invention, pressurizing and atomizing technologies are used in the paper deacidification, and the operation is convenient and pollution-free.

A novel endoglucanase derived from Staphylotrichum coccosporum, a polynucleotide encoding the endoglucanase, and a cellulase preparation containing the endoglucanase are disclosed. The endoglucanase or cellulase preparation is available for a washing use or fabric processing, such as a color clarification of a cellulose-containing fabric, a reduction of fuzz, an improvement of the touch feel and appearance of the fabric, providing a localized color change to the fabric, or a reduction of stiffness.

The invention belongs to the technical field of ancient books and paper deacidification and discloses a deacidification liquid having paper strengthening effect and a preparation method thereof. The deacidification liquid is composed of 0.01-1wt% of magnesium-aluminum bimetal hydroxide and a roasting product thereof, 0.001-1wt% of surfactant, 0.001-1% of paper strengthening agent and halohydrocarbon with purity of 98-99.988wt%. Various modes of spraying, soaking or atomizing can be adopted to deacidify and strengthen acidified and aged paper. The deacidification liquid is mild in property, PH value is lower than 12, writing color fading is not caused, paper is reinforced and is safe, environment-friendly and recyclable by deacidification, the PH value of the paper can be controlled within a proper range, and certain alkali retaining amount can be acquired; the paper is free of deformation, adhesion and writing or color change after being acidified, and the objective of prolonging preservation life of ancient books and acidified paper materials can be achieved.

The invention discloses a de-acidifying method for paper cultural relics, which comprises the following steps of: 1) flatly spreading acidified paper cultural relics on a flat board; 2) injecting an ion source reagent including OH- and Ca<2+> into a bubbler, and importing a mixed gas of helium gas and nitrogen to serve as a carrier gas, and transmitting the ion source reagent to a plasma spray gun; 3) turning on a plasma excitation pulse power source, forming ion flames containing OH- and Ca<2+> at the muzzle of the plasma spray gun; and spraying the ion flames to scan the surface of the flattened paper cultural relics to perform deacidifying processing. In the method disclosed by the invention, a plasma discharging form is adopted under normal temperature and normal pressure work conditions, thereby complex and expensive vacuum equipment are avoided being used, and damages of an aqueous solution infusion method to a paper body are avoided; and the method disclosed by the invention can be used for realizing rapid large-area deacidifying processing and has the advantages of uniformity for de-acidification, stable process, and suitability for industrialized large-scale production.

The invention discloses an arc discharge paper deacidification device and a method. The device comprises an air storage tank, a glass rotor flowmeter, a sealing liquid storage tank, an insulated ceramic reactor, an arc discharge gun, an insulated ceramic plate, a fixing frame, a first control motor, a second control motor and a computer. Under a normal temperature and normal pressure condition, the paper is processed by gaseous deacidification agent and arc discharge jet, so that the pH value of the paper can be increased to be neutral. The arc discharge paper deacidification device is simple and feasible, fast in processing speed, obvious in effect, and free of pollution to environment in the processing process; and the color and shape of the processed paper do not change, and the ink marks do not diffuse.

The invention discloses a paper deacidification method by using a supercritical fluid technology. The method comprises the following steps: placing paper (particularly ancient books) in a supercritical CO2 treatment device, extracting and purifying before adding a deacidification agent and an entrainer for treatment so that the paper approaches to neutral. The invention applies the supercritical fluid technology to the paper deacidification method to save time and labor and avoid organic solvent pollution, and the treated paper is not bent and deformed and has no phenomena, such as color diffusion, ink diffusion, conglutination, and the like.

The invention relates to a pulp repair method of ancient book, painting and calligraphy, which comprises: 1, according to the material of repaired book, painting and calligraphy, selecting pulp material, and adding the raw paper of selected pulp material into mixer, adding water and suspending agent, to mix and break uniformly; the mass ratios between raw paper, suspending agent, and water are: raw paper in 5-20; suspending agent in 5-15; and water in 500-1000, while the mixing time is 30-90s, then getting out the pulp; 2, spreading the book, painting and calligraphy on the repair support that made from paper shade; filling prepared pulp into repair pen to repair them that dropping pulp into the damaged part to use the combine force generated when the pulp becomes paper, the interlace force of fiber, and the adhesive function of suspending agent to complete said process; 3, removing repaired book, painting and calligraphy from the repair support, to be laid on the water-adsorption paper, to be dried.

The invention provides a paper document deacidification device and method. The device comprises a controller, a base, a document bracket, a paper detection device, an atomizing spraying device, a page turning device, a feed liquid pool, a hydrosolvent deacidification liquid defined amount control device and hydrosolvent deacidification liquid delivery pipelines, wherein the document bracket is arranged on the base, the paper detection device and the atomizing spraying device are arranged on the document bracket and located on the two sides of the document bracket respectively, and the page turning device is arranged in the middle of the document bracket; the hydrosolvent deacidification liquid defined amount control device is arranged between the atomizing spraying device and the feed liquid pool, the hydrosolvent deacidification liquid defined amount control device is connected with the atomizing spraying device and the feed liquid pool through the hydrosolvent deacidification liquid delivery pipelines respectively, the paper detection device, the hydrosolvent deacidification liquid defined amount control device, the atomizing spraying device and the automatic page turning device are all electrically connected with the controller, and a paper pH detector is arranged on the paper detection device. In this way, uniform deacidification of the whole paper document is achieved, alkali stock is uniform, and deformation and damage of the document are avoided.

The invention discloses a paper historical relic deacidifying and reinforcing protective material. The paper historical relic deacidifying and reinforcing protective material consists of a solvent and an active component, wherein the active component is a compound formed by chelating a metal ion with starch or hydroxyl contained cellulose. In addition, the invention also discloses a preparation method of the paper historical relic deacidifying and reinforcing protective material. According to the protective material provided by the invention, deacidification and reinforcing treatment are combined, so that the protective material has the excellent comprehensive protective performances of safety, simplicity, convenience, durability, no membrane formation and the like, so that the paper historical relic is deacidified and reinforced once; the operation is simplified, and meanwhile, the obvious and durable reparation effect can be obtained. The preparation method is simple and is beneficial to popularization and application, the cost is low, and the use is safe, simple and convenient.

The invention discloses a method for reinforcing, sealing and protecting weak paper through a spinning film coating technology. High polymer sol generates micro / nano fiber membranes at normal temperature and normal pressure under the action of high voltage static to cover the paper surface so as to improve the tensile strength and elongation of the paper and effectively avoid secondary pollution of the paper generated by external pollutants such as dust mite, dust and mould. The method can be realized at normal temperature and normal pressure, thereby being simple and practicable, the spinning speed is high, the treatment process is free of pollution, and no obvious change occurs on the reinforced paper or the writing and pigments on the paper surface.

Provided is a method of protecting archives with red-ink handwriting from spreading and sinking in during process of papering and repairing. The method comprises the steps of uniformly mixing, by mass, 1 part of phospho-tungstic acid, 2.3 to 3.9 parts of phosphoric acid, 48.8 to 52.0 parts of acetone and 2.8 to 9.2 parts of tetraeththyl orthosiliate to prepare a first reinforcing agent and coating the agent on red-ink handwritings; preparing a second reinforcing agent with 1 part by mass of ethyl cellulose, 6.25 parts by mass of barium hydroxide and 40 parts by mass of methanol and coating the agent on the red-ink handwritings coated with the first reinforcing agent; and preparing a third reinforcing agent with, by mass, 1 part of ethyl cellulose banana oil solution and 0.03 to 0.17 part of polymethylmethacrylate banana oil solution, wherein mass percentage of the ethyl cellulose banana oil solution is 4% and mass percentage of the polymethylmethacrylate banana oil solution is 4%, and coating the third reinforcing agent on the red-ink handwritings coated with the second reinforcing agent. The method of protecting the red-ink handwritings enables improvement in tensile strength, folding strength and tearability of testing paper after dry heating aging, hydrothermal aging and ultraviolet aging tests. After the aging process, the handwritings which are reinforced by the reinforcing agents exhibit minor chromatic aberration. Pigments of the handwritings are not easy to fade and the handwritings can be durably kept.

The invention discloses a deacidification method and device. The deacidification method comprises steps as follows: (1), a to-be-deacidified sample is put in an atomized deacidification agent atmosphere; (2), the to-be-deacidified sample coated with a deacidification agent is treated through plasma. The to-be-deacidified sample is in a single layer or laminated and is not larger than 2mm thick. The step (1) and the step (2) are performed in an air atmosphere at the normal temperature under the normal pressure. According to the deacidification method and device, the application range is wide, the condition is mild, deacidificaiton is complete, and the morphology and the structure of the to-be-deacidified sample cannot be damaged.

The invention relates to the field of machinery and especially relates to a device and a method for batch deacidification of paper documents. The device comprises a deacidification liquid tank which is connected with a feeding pump through a pipeline, wherein the feeding pump is connected with a deacidification reactor through the pipeline; a rotating roller is contained in the deacidification reactor; an opening in one side is contained in the rotating roller; the deacidification reactor is connected with a vacuum pump through the pipeline; the vacuum pump is connected with a cooling recycler through the pipeline; the cooling recycler is connected with the deacidification liquid tank; matters harmful to environment are not generated by the deacidification agent and the deacidification process; the deacidification operation process is safe and reliable; no part of the documents is damaged, destroyed, faded or bled; the deacidification agent does not damage the paper fibers or have chemical reaction possible to damage the documents with fibers, fillers, dyes, pigments, etc.; the service life can be prolonged for 3-5 times; the deacidification in volume and batch can be realized.

The invention discloses a method for deacidification of paper by using an ultrasound-assisted deacidification agent. The method comprises the following steps of: putting paper, especially aged and acidulated paper into an ultrasonic treatment device, and treating the paper by using an aqueous solution of a deacidification agent (such as calcium hydroxide, borax or magnesium acetate and the like), a fatty alcohol solution or a mixed solution of fatty alcohol and water. By adopting the method, the pH value of the paper is controlled in the optimum range of 7.0-8.5; compared with soaking deacidification, the deacidification time is obviously shortened, and the deacidification is uniform; and meanwhile, the strength of the paper is obviously improved, and the mechanical strength of each item is greatly improved, so that the storage life of the paper is favorably prolonged.

The invention provides a deacidification system. The deacidification system comprises a deacidification solvent atomization device, a radio-frequency discharge device and a drive device, wherein the deacidification solvent atomization device comprises a deacidification solvent tank, an atomization generation mechanism and a spray head for spraying a deacidification solvent towards a sample to be deacidified, the deacidification solvent tank, the atomization generation mechanism and the spray head are communicated in sequence. The radio-frequency discharge device comprises a discharge electrode, a grounding electrode and a matched circuit, a discharge zone for processing the sample to be deacidified is arranged between the discharge electrode and the grounding electrode, and the drive device is used for driving the discharge electrode or the sample to be deacidified so as to change relative positions of the discharge electrode and the sample to be deacidified. The deacidification system processes the sample at normal temperature and normal pressure, is safe in use and is free of pollution to an outside environment. The deacidification system is simple in structure, convenient to use, short in processing time and thorough in deacidification, does not easily cause re-acidification and effectively avoids sample deformation and discoloration.

The invention discloses a simple and high-efficiency paper deacidification method, aiming at solving the problems of paper deformation, writing fading, ink penetration and the like in the process of soaking paper in a soaking solution, as well as the problems that gas-phase deacidification equipment is high in requirement, high in cost and high in risk and the like. The method comprises the following steps: treating a deacidification solution by utilizing a superfine particle generator to form superfine particles, and filling a closed space, full of paper to be subjected to deacidification, with the superfine particles, so that the superfine particles and acidic materials in the paper are reacted, and the aim of deacidifying the paper is achieved. According to the method, the superfine particles can be permeated and diffused in paper fibers and fiber gaps, and the superfine particles and the acidic materials in the paper are neutralized in the diffusion process so as to achieve the deacidification effect. Meanwhile, a certain deacidification agent residue is remained in the paper, and paper deacidification is prevented or delayed.

The invention discloses application and a method for temporarily reinforcing cultural relics in an excavation site by one type of reinforcing material. The reinforcing material is selected one or more of 4-tert-butylcyclohexanol, coumarin and ethyl maltol. The reinforcing method comprises the following steps: heating and melting or dissolving one or the mixture of more than two of 4-tert-butylcyclohexanol, coumarin and ethyl maltol into an organic solvent to obtain a reinforcing solution; covering the cultural relics to be reinforced with fiber textiles, and pouring or brushing the prepared reinforcing solution on the fiber textiles or directly brushing the reinforcing solution on the excavated cultural relics; and naturally volatilizing the organic solvent in the reinforcing solution, and cooling and condensing to temporarily reinforce the cultural relics. The reinforcing material is safe and toxin-free and has low price, and can be in direct contact with a human body; and compared with newly-developed menthol and a derivative reinforcing material thereof, the harsh environments including high heat and the like can be met, and the problems that the melting point of menthol is low, the volatilization is too fast and the like are solved.

The invention discloses a paper deacidification system with a rotation bracket and a deacidification method, and relates to the technical field of the paper deacidification. In the system, the outletof a deacidification liquid storage tank is connected with the deacidification liquid inlet of a deacidification barrel through a centrifugal pump and an inlet valve. The deacidification liquid outletof the deacidification barrel is connected with the outlet of the deacidification liquid storage tank through an outlet valve and the centrifugal pump. The outlet of the deacidification barrel is connected with the inlet of a condenser through a first vacuum ball valve, a vacuum pump and a second vacuum ball valve. The outlet of the condenser is connected with the inlet of the deacidification liquid storage tank. The interior of the deacidification barrel comprises the rotation bracket. The exterior of the deacidification barrel is provided with a heating system. The deacidification method comprises the following steps: placing paper to be deacidified in the deacidification barrel, pre-vacuumizing and feeding the deacidification liquid, returning the deacidification liquid after the deacidification to the deacidification liquid storage tank, and drying the deacidified paper. The system has the characteristics of high integration and automation degree, low cost, convenient use and cleaning, high deacidification efficiency, easy batch processing, uniform deacidification, uniform alkali reservation amount, recycling use of the deacidification liquid, and no environmental pollution.

A reinforcing and repairing method for splitting and clamping paper document comprises the following steps: 1, manual pulp repairing is performed to paper to be repaired, and after dried, the paper is repaired in step 2; 2, firstly, a splitting and clamping material is adhered to the two sides of split paper obtained in step 1 with adhesive, secondly, the paper is split from the middle under the condition that the paper to be repaired is wet, thirdly, a layer of tissue paper is clamped between the two layers of paper and is glued with adhesive to ensure that the two sides of the split paper distributed in the upper and the lower layers stay at the original positions, and the paper is fixed and restored into the original shape after being dried, and finally, the splitting and clamping material is removed, and after the paper is dried and flattened, repairing of a single page is finished; 3, finally, all paper that is repaired through splitting and clamping is rebound, so that the repairing mission is finished.

The invention discloses a novel method for performing deacidification repairing on ancient books. The treatment method comprises the following steps: putting to-be-treated ancient books into a closeddeacidification repairing device, performing dehumidifying operation and vacuumizing operation on the system sequentially after sealing to maintain the system to be dry, maintaining stable under negative pressure, starting a fan group, directly conveying nano-scale alkaline deacidification powder into the deacidification repairing device by a gas pipeline, or atomizing an alkaline deacidificationsolution by an ultrasonic atomizer and conveying into the deacidification repairing device through a gas pipeline, enabling the to-be-treated ancient books to absorb the alkaline deacidification agentcompletely and uniformly, and monitoring the pH value of the ancient books to realize deacidification repairing on the ancient books. The method is suitable for repairing of the ancient books and isalso suitable for deacidification repairing and storage treatment on files, literatures, books as well as modern paper, cotton and linen products.

The invention belongs to the technical field of biological polymer materials and relates to preparation of chitosan-calcium hydroxide composite. The chitosan-calcium hydroxide composite is prepared by evenly dispersing chitosan into acetic acid solution, evenly dispersing calcium hydroxide powder and performing full dispersion under the ultrasonic condition. The chitosan in the chitosan-calcium hydroxide composite is well compatible with the paper, has a small physicochemical property difference with paper fiber, is friendly to paper relics and is well permeable and infiltrative to the paper fiber; the calcium hydroxide can absorb CO2 in air, generating calcium carbonate which has the effect of stopping reaction between the air and the paper, the paper has better ageing resistance and better performance, no obstruction is caused to character recognition, and the texture of the paper is unaffected. Therefore, the chitosan-calcium hydroxide composite as novel stiffening material for paper documents is used for protecting the paper documents and has promising application prospect.

The invention discloses a paper deacidifying solution and a preparation method thereof. The preparation method comprises the following steps of slowly adding fluoroalkyl ether carboxylate into a perfluoroalkane solvent, uniformly agitating an obtained first mixture, then adding an alkaline deacidifying substance into the obtained first mixture, agitating an obtained second mixture to uniformly mix all components, and ultrasonically vibrating the obtained second mixture, so that the paper deacidifying solution can be obtained. The paper deacidifying solution is prepared from the alkaline deacidifying substance with the content which is 0.01wt% to 5 wt%, the fluoroalkyl ether carboxylate with the content which is 0.01wt% to 20wt% and the balance of the perfluoroalkane solvent. The paper deacidifying solution is obvious in a deacidifying effect for acidulated paper and good in dispersing performance, can be maintained in a stable disperse state for a long time, has no influences on handwritings written with conventional ink and pen water and by a ball pen and the like, is green and environment-friendly, can be repeatedly recycled, is lower in cost, and can be widely applied to the deacidifying treatment of paper of ancient books and reliable texts, paper of literature during the period of the Republic of China from 1912 to 1949 and paper of modern literature.

The invention discloses a method for mounting paper-based archives, ancient books and literatures by utilization of the same fiber. The method comprises steps: a paper pulp raw material is obtained; restoration paper pulp is prepared; a paper making wooden frame is made; a file to be restored is flattened; the paper making wooden frame is placed in a paper pulp pool from one side of the paper pulp pool, shaken, and taken out, thus fiber settles in the paper making wooden frame naturally and uniformlyl paper pulp mounting and reinforcing are carried out, and restoration of paper-based archives, ancient books and literatures is finished. Effective deacidification of the file to be restored can be carried out through magnesium hydroxide while reinforcing is carried out, the paper-based historical relic storage durability is raised, paper pulp restoration reinforcing material intervention is little, thickness and softness of an original file are hardly changed, the material is consistent with the restored file, traces are few after restoration, and the requirement of renovating old as old can be met. In addition, the employed materials are cheap and easily available, the method has characteristics of convenient preparation, easy grasp of manual operation and rapid restoration speed, and is suitable for rapid and high-efficiency restoration of large-scale paper-based archives, ancient books and literatures.

The invention belongs to the technical field of protection of ancient books, and discloses an ancient book processing liquid and an ancient book processing method. The ancient book processing liquid comprises an inorganic base liquid prepared by dissolving or dispersing an inorganic base in water and a quaternary ammonium salt liquid prepared by dissolving or dispersing a quaternary ammonium saltcompound in water. The ancient book processing method is as follows: clearing an impurity of the ancient book, processing at the constant temperature at the constant humidity, drying, and putting in closed deacidifying equipment, the inorganic base liquid and the quaternary ammonium salt liquid are atomized and introduced into the deacidifying equipment to process a paper sample, then the paper sample is dried and placed at the environment temperature to finish processing. The ancient book processing liquid and the ancient book processing method have the multifunctional processing effects of deacidifying, reinforcing, and inhibiting bacteria.

Basic suspension wherein oxides hydroxides, carbonates, or their mixture, in the form of particles having determined dimensions are suspended in the appropriated solvents, are described. Processes for the preparation of the above said suspensions and of the suspended particles are also described together with the uses of the suspensions in processes for paper deacidification and / or porous materials consolidation.

The invention which discloses a paper restoration device relates to the field of paper restoration devices. The paper restoration device is characterized in that: the water outlet end of a water pool (1) is connected with a water inlet tube (2); the water inlet tube (2) is connected with the water inlet end of a restoration case (5) through a valve (3) and a water drawing motor (4); the water outlet end of the restoration case (5) is connected with a water return tube (6); the water return tube (6) is communicated with the water pool (1) through a valve (3) and the water drawing motor (4); a tap (8) is arranged on the water pool (1); a water discharge tube (7) is arranged on the lower end of the water pool (1); and the water discharge tube (7) is provided with a valve (3). The device which is not limited by the number of paper for restoration; the device which adopts above water reusing design allows water and the restoration cost to be saved; and the restoration speed of the device is greatly improved.