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With the rapid development of color science, especially the ink-jet printing, the evaluation of the color copy effectiveness become one of the most important evaluation parameters in the ink-jet printing. Meanwhile, it makes the evaluation of the effectiveness of color reproduction become more and more quantitative. This paper selects four ink-jet printing papers with different types and physical properties, according to measurement and analysis of the whiteness, gloss, roughness, absorption and other performance parameters of the papers, it shows the effect from the various performance parameters of ink-jet printing paper to color reproduction. At the same time, the study of this paper offers a certain practical guidance to the selection of ink-jet printing paper as well as the improvement of replication precision of ink-jet printing.

The difference of printing quality depends on the transfer of ink and paper performance.In this paper based on the theory of printing.Measuring the performance of all sorts of paper,with IGT-C1 type printability tester to simulate the printing principle.In the same printing pressure,printing speed and ink,under the conditions of constant temperature and humidity.Using different paper type experiment,obtained paper all kinds of performance and ink transfer data.Then processing, analysis,and obtained paper performance and ink transfer rate relation curves of in printing pressure and the printing speed with constant.For the printing quality control to provide certain basis in the different performance of paper.

It is necessary to implement pretreatment operations for a paper based microfluidic device. A paper based microfluidic device with SAW driving microfluid has been implemented. Trance analyte to be detected was absorbed into a filter paper at first, and mounted on PDMS blocks on a piezoelectric substrate to ensure that the indicting filter paper has a little gap with the piezoelectric substrate. Reagents were then pipetted on the piezoelectric substrate and transported by surface acoustic wave excited by an interdigital transducer, which was fabricated on a 1280-yx LiNbO3 using micro-electrical technology. A color was developed due to chemical reaction, and the analyte concentration was evaluated by its grey value. Nitrate ion was detected using the microfluidic system.

Based on the experiment, this paper used principal component analysis and multiple regression analysis to establish a fuzzy evaluation system between the paper performance and print qualities. Five kinds of ink-jet paper with different surface characteristics were chosen in this paper to test their properties including absorbability, gloss, roughness, whiteness etc. During the same printing condition, using the digital proofer of EPSON Stylus Pro7880c, the standard wedge of GATF, solid color lumps and standard lines were printed on these paper samples; dot gain and solid densities were tested by SpectroEye, then contrast-K was calculated, the qualities of lines were analyzed with QEA image Analysis. Finally, paper surface characteristics were analyzed with principal components analysis, and definition of printing was analyzed by QEA Image Analysis, correlation between paper basic performance and the characteristics of printing qualities, such as dot gain, solid density, definition and contrast-K, and an integral evaluation function and a model were established. When evaluating on paper, as long as its surface characteristics were tested, the printability of different paper can be evaluated in a fuzzy and integral way through the calculation of the model and evaluation function. This work offers a certain theoretical reference and practical guidance to the selection of ink-jet paper and the improvement of ink-jet qualities.

It is usually reported that chitosan is used as paper strengthening agent. However, it is sorry that the study choosing chitosan which DD (degree of de-acetyl )and viscosity is filtered by experiments is blank. Many chitosan samples of wide viscosity range and wide DD range were tested by their strengthening effect on bleched wheat straw pulp. Then a few sample of chitosan is selected because of their obvious strengthening effect on pulp. This study could be as the foundation of further research of chitosan used as paper strengthening agent.

Large amounts of sludge are produced in China each year. Its safe disposal and the recycling technology is the only way to solve the problem of sludge pollution, in which the sludge solidification technology is very important. Since the hygroscopic property and self-hardening property of paper sludge ash are important factors for developing cheap and effective sludge curing agent formulations, the research is practically valuable. The present research studies the basic engineering properties of paper sludge ash, its PH value, heavy metals in the extracting solution, hygroscopic property, microstructure and shear strength. The results show: the PS ash was weakly alkaline; the extracting heavy metals are of little pollution; hygroscopic property decreases with increasing pressure and there is a minimum water absorption; shear strength decreases as the water content increases.

How to used non-EU-banned insoluble azo dyes to prepare a new-type colour-display anti-counterfeiting paper(ACP) is investigated in this paper. The ACP will display red spots when it is wiped with alcohol. Through studying its mainly affecting facts ,including the dosage of Naphthol AS-BO ,dosage of Chromophore Red-B, the Chromophore's pH value and the drying temperature etc.,the best optimize technological conditions are obtained of insoluble azo dyes' color-displaying on the paper for the purpose of anti-counterfeiting. After the red spot are displayed in the paper,the chromatic aberration and physical properties of the paper are detected. The results showed that the paper made by adding Chromophore Red-B and Naphthol AS-BO had a very good anti-counterfeiting effect, while its physical properties had only changed a little.

A new type of adsorbent which prepared with waste paper as raw material was applied in the treatment of dye wastewater, and studied the processing conditions on treatment effect. Batch adsorption study carried out as a function of the dosage, the stirring time, the stirring speed and the pH. The adsorption rate of newspaper adsorbent to basic blue dye simulated wastewater and alkaline yellow wastewater with an initial concentration of 80mg·L-1 can reach 98.56% and 92.23% at 4g·L-1 of the dosage of paper adsorbent, 15min of the stirring time and 150r·min-1of the stirring speed. The maximum adsorption were 233.1g·L-1 and 289.4g·L-1 respectively. The isothermal adsorption experiment was also studied and concluded that the adsorption equilibrium data fitted with the Langmuir isotherm. The characterization experiment showed that the modified paper adsorbent had stronger absorbability.

By using method of mathematical statics and literature, we carry out stratified statistic, generalization and analysis of the scientific papers about Taekwondo in Core Chinese Journals (CCJ) during 2000-2010 according to five dimensions, including published time, the application of research methods, research fields, professional title and organization of authors, and language of citation. The result shows that not many scientific papers about Taekwondo have published in CCJ of these 11 years; research methods have been used widely, but the specific research method is rather single; contents of research are very wide; the authors are mainly lecturers and the organizations are mainly based on independent sports colleges; the major language of citation is Chinese and foreign languages are very few, especially Korean – there is no citation in Korean.

The paper analyses the structural peculiarity and design methods of the adjustable heat pump, bring forward a new project which used adjustable heat pump system for paper machine dryers. The system can enhance the steam’s function, accelerate the speed and economize the energy.

This paper analyzes the bag-making process and control requirements of paper and yarn compounding bag-making machine (PYCBMM). The overall control scheme is established. Configuration software WinCC Flexible 2008, Siemens touch panel MP377, Siemens PLC S7-200, Siemens frequency converter MM440, rotary encoder, color sensor, and other elements are synthetically applied to design the PYCBMM control system. During 12 months commissioning operation, the control system is stable, reliable, and easy to operate. All the technical indices outperform the design requirements.

Referring to the military sonar hunting submarine principle，the author converts the multi-constraint issue into the multidimensional space search issue and calculates the differences between the current solution and expectation in each dimension to determine the direction and the scope for the next search. Then the probability of better solutions and the efficiency are both improved. This article mainly make experiments in the auto-generation of test paper. The auto-generation of test paper is proved to meet the needs in practice.

The aim of this work is to study the influence of beating and refining as well as the fibre furnish on the properties of silk paper, such as air permeance, softness, pore size, tensile index and burst index. The results showed that the beating characteristic of silk fibre was similar to that of plant fibre, they all had the characteristic of fibrillation. Silk paper had excellent softness and air permeance when the beating degree of silk pulp was 20 °SR, 181.3 μm/Pa·s and 2.5 mN·m2/g respectively, which was superior to paper made from plant fibres of the same beating degree. The minimum average pore size of silk paper was 5.11 μm at the beating degree of 20 °SR, and it decreased with the increase of beating degree, reached 0.79 μm at the beating degree of 67 °SR. With the increase of beating degree, the tensile index of silk paper increased at first, and then decreased. The burst index of silk paper showed a upward trend, but the softness and air permeance of it constantly decreased. The tensile strength of paper made from mixed-furnish pulp consisting of silk and softwood reached the maximum when the amount of silk fibre was 4%, and its air permeance increased with the increase of silk fibre.

The combustion characteristics of the mixtures, which are made from different proportions of paper mill sludge and coal, were studied by the thermogravimetric analysis (TG-DTG) at different heating rates. The results showed that there were obviously three temperature zones in the paper mill sludge combustion curves, which is respectively corresponding to two devolatilization stages and a fixed carbon combustion stage. In these stages, the weight of sludge was lost promptly. When the proportions of sludge – coal blends were rather different, ignition point obviously shifted to the larger proportions, and DTG curve was more closed to the larger proportions. During the combustion process of the mixture, the paper mill sludge and the coal had basically maintained their own devolatilisation characteristics. And the comprehensive combustion characteristic index S of sludge-coal blend declined, demonstrating that higher volatility had better combustion characteristics. As the heating rate and the proportions of coal increasing, total weight loss rate increased, while burnout index Cb raised.

Rapid economy development and upsurge of paper consumption cause the shortage of paper material. Waste paper recycling can solve this problem effectively. This paper analyses the status of waste paper recycling in China and abroad，also the technology development trend. According to the situation of our country, suggestions for strengthening recycling of waste paper are proposed.

Test paper problem is a typical multi-constrained objective optimization problem. By using genetic algorithm, this paper analyzes the initial population generation, the chromosome coding and its genetic manipulation, control parameters. Solving that by natural-coded genetic algorithm, improves test paper success rate and convergence rate. This genetic algorithm is applied successfully on NHibernate architecture, and developed "automatic test paper" Online Examination system.

In recent years, there have been extensive studies and rapid progresses in automatic text classification, which is one of the hotspots and key techniques in the information retrieval and data mining field. Feature extraction and classification algorithm are the crucial technologies for this problem. This paper firstly proposed feature extraction algorithm based on key words, the algorithm selected key words set from special part of scientific papers, and employed mutual information to extract features. And then, proposed an improved hierarchical classification method, and realized hierarchical classification of Chinese scientific papers.

As a high technique environmental friendly material, Wood-plastic composite (WPC) material has wide range of applications and is extruded by recycled wood fiber products and wasted LDPE. Waste Paper-Al-Plastic materials including Tetrapak beverage and milk boxes are used to extrude the WPC as thermal insulation exterior wallboard instead of normal wood fiber material in the present research. In this paper, simulated thermal insulation and Oxygen index combustion test were operated at the Lab conditions. Some experimental results are presented as follow: heat transfer coefficient of 100mm thick WPC hollow wall is 0.922 W/m2•K, which is equivalent to the thermal insulation performance of a 0.35m thick fly ash aerated concrete block. Oxygen index of 27 indicates that WPC is inflammable material. Zinc borate (ZB) and ammonium polyphosphate (APP) are effective flame retardant for Paper-Al-Plastic WPC.

The study on the method of the color measurement of gold and silver foil paper is important to control color quality in the printing industry. The methods used in the experiments were to study the role of the gold tone and silver tone by studying the influence of gold tone and silver tone with different content on the chromatic value of normal color ink with different tone and different saturation. In the experiments, chromatic value of SPIN and SPEX respectively in the diffuse light conditions of color measurement could represent the chromatic value of the ink containing gold or silver ink. Then the difference of L values between SPIN and SPEX was defined as lightness difference. The ratio of the difference of saturation between SPIN and SPEX to their sum was defined as saturation ratio. Therefore, the Correlation Properties between lightness difference and saturation ratio was quantified. The result shows that with the quantity of gold and silver ink increasing, saturation ratio has linear relation with lightness difference for the same color. Similarly, with the saturation of normal ink colors increasing, saturation ratio has linear relation with lightness difference for a series of colors containing the same quantity of gold and silver ink .

Microfibrillated cellulose (MFC) was prepared from the bleached kraft hardwood pulp using TEMPO/NaClO/NaBr oxidation system and high pressure homogenization. By changing dosages of the TEMPO, NaClO and NaBr, the pressure and times of homogenization, pretreatment and homogenization process were optimized. Experimental investigation indicated that for making MFC of high quality, 0.25%TEMPO, 2.5%NaBr, 60%NaClO (based on oven dry pulp), 20 times of homogenization, pressure of 60MPa in the process of treatment were required. At last, the mechanical and barrier properties were tested after the base paper was coated by homemade MFC. The study suggested that mechanical properties (especially 5 times increase of the folding strength) increased substantially and air permeability decreased by 100times.

Screen printing fluorescent security inks can be widely applied in the field of anti-counterfeiting packaging and printing special. Paper-based screen printing fluorescence security ink was prepared by europium polymer fluorescent material as fluorescent agent, alkyd resin etc as links, meanwhile various additives were added. The performance of europium polymer was studied by IR, UV spectra, fluorescence spectra, and fluorescent security performance of ink were studied by fluorescence spectrophotometer, the results showed that the fluorescence emission spectrum was narrow, and had a main peak at 612nm and high fluorescence efficiency, so this ink had good fluorescence security performance. The fineness,viscosity,stability etc printability of the ink were studied by fineness gauge, viscosity meter, the test result showed that the ink had good printability, can be applied in the security printing process of screen printing.

In order to change the way of supplying toilet paper and offer an intelligent, environmental and friendly service to the requirement in the public place, a novel communication device which can identify, store and transmit the using information is designed by modem IOT technology. Furthermore, the RFID reader based on RC500 chip is used to read the users ID of the card. The DS1302 chip is used to get the local time. The AT24C02 chip is used to store users information locally. The GPRS wireless is used to interact with the server by a TCP connection. An application program based on C# and Winsock network programming interface is designed to receive data from clients. The users data are stored in SQL Server 2005 database and the managers can check the data supported by the proposed system wherever they want. The proposed system is aim to offer a personalized service for the public service sector and achieve green and pro-environment.

Flameless combustion is of a great interest since it simultaneously provides higher thermal efficiency together with controlling the pollutant emission such as NOX. This technology has been used to provide large energy savings in power system and industrial heating applications. In this technology, the preheat temperature of the combustion air must be higher than the auto-ignition temperature of the reactant mixture. In this review, papers concern the effect of firing mode to reduce pollutant emissions such as NOX emission and combustion efficiency for flameless combustion were reviewed. Summaries on the influences of the firing mode in the flameless combustion were presented, discussed and analyzed. The review concludes that all the previous studies have asserted that a parallel firing mode gives much lower pollutant emissions and high efficiency compared with staggered and counter modes.

Sea-water ice slurry generator is aimed to produce ice-slurry using sea-water while fishing on boat. Some models of ice slurry generator have been researched and developed. Indonesia as an archipelago and maritime nation has big potential in fishery. Appropriate model for Indonesian traditional fishing boat is necessary. The most important part of ice slurry generator is evaporator, including auger and scrapper. Some studies on ice slurry are presented in this review paper in order to get larger view on design of ice slurry generator.

Return voltage diagnostic method is an effective method of non-destructive diagnosis in transformer insulating state. The current study is that through experiments get polarization spectrum to analysis the transformer insulating state, but not yet carried out the influence of various factors to the experimental results. So, based on the Debye model and specific parameters comes from one equivalent model of the actual transformer, this paper using RVM methods to simulation analysis maximum return voltage and dominant time constant under different factors. Simulation results show that the diagnostic methods that combine maximum return voltage value with dominant time constant can preferably reflect the transformer insulation state.

This paper proposed on-line detect method of eliminating the influence of sample order and adapting adjustment parameters, according to BP network was slow convergence and computationally intensive. Improving the speed and efficiency of training, the recognition process was more reliable and recognition results were more accurate. The experiment showed that improved BP network could meet the requirements of online testing, and recognition rate reached more than 91%.

With the gradually maturing super-speed inkjet printing technology, people are pursuing steadier and higher speed as well as better quality presswork for the sake of increasing economic benefit. To provide an overview of the velocity fluctuation of the inkjet machine platform and the cyclical fluctuation of the incremental encoder, external clock and corresponding internal clock were applied separately to print the equally spaced lines under the same platform speed. Then a magnifier was used to measure distance between the lines, according to which the velocity fluctuation mentioned above can be obtained. Thus conclusion can be drawn from the fluctuation analysis that the velocity cycle of platform is 60mm, however, number of those produced by the incremental encoder is up to 3, including 60mm influenced by the platform, 300mm produced by the perimeter of encoders pressure wheel and 600mm produced by the circumference of dance roller. Furthermore, dance roller contributes more influence on narrow coated paper. Through this research, inkjet technician can do directional compensation for every factors to reduce the fluctuation.

In order to accurately analyze the mechanisms of suction piece and deflector rod, and achieve the coordination relations of the sheet separation function between the trajectories; establish the mathematical models of trajectories ( absorbing papers of suction piece, dialing and pressing of deflector rod); and pregame by VB. This method realizes the accurate trajectory design.

Based on the background of cushioning package design for the wine bottles, the analysis on the cushioning properties of honeycomb paper core is presented. The reverse design method based on the function relationship of cushioning package is proposed, to make the cushioning structure design and cushioning dimension design as well as the buffering pad checkout, including strength check, deflection check and creep deformation check to make sure design meets the requirements. The function relation of the maximum acceleration and static stress between arbitrary dropping height and thickness of cushion is obtained. The reverse design method can obtain any curve of any dropping height and any cushioning thickness through several experimental tests. The flexibility, what is more important is that the method can greatly reduce test time, saves the cost of enterprises and technology research & development. The method provides a new way to the cushioning package design.

The consumers’ green purchasing decision is the process of matching their own needs and the attributes of the products. Conjoint analysis was used to analyze how the attributes such as the brand, the price, the raw materials, the environmental certification and the fluorescent additives of the rolling paper affect its purchase on the basis of the data from a survey among the consumers in Changsha. The study measured the relative importance of each attribute to the consumers’ decisions and the utilities of the levels of the attributes to consumers. Results showed that the differences of the consumers’ preference can provide strong basis for product management of the corporation.

The research described in this article focuses on one important aspect of monitoring scientific and technological trends and tries to examine topics of research and trends in the photovoltaic field. The data used to examine the research and trends were scientific and technological literature published during the last five years, which were exhaustively collected from the two SCI journals that specialize in photovoltaic and solar energy research. In order to analyze the 2,031 academic papers colllected, text-mining was applied. As a result, research topics were identified through document clustering and classified through text categorization into four major subjects; ‘Cell’, ‘Module/Array’, ‘System’ and ‘Relative/Advanced.’

Soil suction is one of the most important parameters for unsaturated soils. An experimental program was carried out to measure the maric suction of soil specimens of a residual soil in Xiamen by filter paper method. Initial water content, soil structure, and stress state were taken into account to investigate the hysteresis loop of SWCC. The air-entry value of test soil is about 140kPa and residual saturation is about 18%. The soil specimen at wet of optimum has the largest hysteresis loop for a relatively uniform pore-size distribution. However, the soil specimen at dry of optimum has the smallest hysteresis loop. The soil specimen at optimum lies between them. For specimens subjected to different stress states under various applied loads, the higher the applied load on the specimen, the smaller the size of hysteresis loop. In drying or wetting process, there is a significant difference in matric suction though soil specimens are at same water content. Therefore, for this kind of soil, it should be attention that the shear strength may be greatly reduced during rainstorms.

A method is established to determine eight kinds of residual solvents in paper package by HS-GC/MS, such as benzene, toluene etc. Response surface method is used to optimize pretreatment temperature and time, the terminal pre-temperature is 100 ºC, with time 40min. The result reveals that the pretreatment-temperature has a significant impact on peak area and pretreatment-time has no significant influence. The residual solvents in sample was separated using HP-5MS chromatographic column; Flow velocity of He:1ml/min; Inlet temperature:250ºC; programmed temperature: keep 2 min at initial temperature of 35 ºC, then rise to 100 ºC at a rate of 10 ºC/min and keep 3min; the total time is 14.5min. The eight kinds of residual solvents can be effectively separated by this method. The linear range was 0.330~7.956mg/m2 and the correlation coefficient was between 0.995~0.999.The Recovery rate was 99%~114.8% and the relative standard deviation (n=5) was 0.916%~1.333%.

This study describes a new precise recycle module as a clean poduction pocess and an environmental protection consideration that uses micro electroetching (MECE) and a new design of an intercross tool to remove defective transparent conducting oxide (TCO) nanostructures from the optical PET diaphragm surfaces for e-paper surface. This process takes very little time to remove the TCO easily and cleanly and is highly efficient both technically and economically. A large diameter of the cathode of the intercross tool combined with a small gap between the cathode and the workpiece corresponds to a higher removal rate of TCO. This higher feed rate combined with enough voltage results in a shorter machining time. A high rotational speed of the intercross tool can also improve dregs discharge and allows a higher feed rate of the optical PET. A small end radius of the cathode or a thin cathode of the bulge-form tool takes less time for the same amount (20 nm) of TCO removal.

One of the most important steps in the wet limestone–gypsum flue gas desulfurization (WFGD) process is limestone dissolution, which provides the dissolved alkalinity necessary for SO2 absorption. Accurately evaluating the rate controlling step in sorbent dissolution process is important in the design and efficient operation of WFGD plants. In the present work, the kinetics of paper white mud(PWM) in dissolution process has been studied by using a pH-stat method. The results obtained indicated that PWM dissolution in WFGD conditions obeys the modified shrinking core model. PWM dissolution kinetics follows the film diffusion and surface reaction control and the rate controlling step of PWM is film diffusion control. The activation energies of PWM in film diffusion and surface reaction steps are 11.9±0.7 kJ/mol and 13.7±1.3 kJ/mol, respectively.

Modal analysis was done to steel shaft and rubber shaft, and their top ten orders of nature frequency were obtained. The lowest nature frequency of steel shaft is 64HZ and the rubber steel’s is 2.2463HZ. Doppler vibration measurement was done to main shaft of paper advance mechanism and the time domain signal and frequency domain signal were obtained when the rotational speed is 80, 160, 240, 320, 400 Rpm. The frequency and amplitude were obtained by signal analysis. It proves that the nature frequency of steel main shaft is much higher than measuring result, but the seventh and eighth order nature frequency of rubber material is in accord with measuring result of laser doppler vibration.

The effect of surface treatment of ceramic fibers on properties of handsheets was discussed. It is indicated with the addtion of ceramic fibers, the tightness of handsheets increases and the tensile index, elongation and tear index increase at first and then decrease. The tightness, tensile index, elongation and tear index of handsheets with surface treated ceramic fibers are higher than that with untreated ceramic fibers. The ceramic fibers and paper fibers can interweave into three dimensional networks.

The effect of relative humidity (RH) on the energy absorption characteristics of honeycomb paperboard and multi-layered corrugated paperboard (MLCP) is investigated experimentally. The concept of specific load is employed to compare the energy absorption properties of these two structural parts with different constructions and materials. Results indicate that energy absorption capacity of honeycomb paperboard is insensitive to RH in the range of 40%~75%; when RH is higher than 75%, energy absorption decreased significantly with the increasing of RH. While for MLCP, its energy absorption properties decline continually by small margin as the RH increase in relative humidity range between 40%-95%. Energy absorption properties of honeycomb paperboard far outweigh that of MLCP in humidity range of 40%-85%, however, in extremely humid environment (95%RH), energy absorption of honeycomb paperboard is nearly equal to that of MLCP. Results of this research can be applied in the optimum design and material selection of paper-based cushioning materials in actual logistics environments.

The sandwich external wall panel is made of fireproof Paper Honeycomb Board (PHB) as kernel material, and the external surface is covered by colorful extruded steel board, while the internal surface is coated with the thermal insulating frothing ceramic board or the calcium silicate board, which works as the insulating layer or protecting layer of the panel. Two types of formation design are suggested, i.e., Type-A and Type-B. After corresponding thermal calculation, the maximum thermal transmission factor is determined as 0.424W/(m2• K), which complies with the threshold stipulated in the National Code for external wall panel used in cold climate area. The newly designed wall panel will save 65% of energy when compared with the traditional one made in 1980.

Constructing papermaking industry eco-industrial park is a importance way which can solve the dilemma of resource, environment, and economic development from enterprise group hierarchy. By ecological theories of “key specises” and eco-industrial chain, this paper analyses the feasibility of china’s papermaking industry constructing eco-industrial park. By way of case analysis, prove that constructing papermaking industry eco-industrial park is a feasible way of realizing sustainable development of china’s papermaking industry.

Abstract: the paper introduces the advantages and disadvantages of the honeycomb core composite wallboard, and put forward various solutions on the problems that the honeycomb core composite wallboard on juncture place easily crack. According to the advantages and disadvantages, the optimal measures are to use CFRP paste connection joints. Tested by experiments, the results show that: for using cellular wall materials as new buildings retaining wall materials, CFRP enhancement processing juncture surface can effectively restrain cracks, and the results are ideal; for existing buildings retaining wall, gives suggestions about enhancement processing, and proves its feasibility.

In order to know the application of bentonite in color ink-jet paper, an acid bentonite was prepared by modifying with sulphuric acid. Both of sodium bentonite and acid bentonite were characterized and evaluated with scanning electron microscope. The study result from printing quality testing showed that if the formulation of acid bentonite, under the dosage of 35% PVA and PDMDAAC 3% respectively, was used as the pigment, the print effect could be better.

The theory of natural frequencies were acquired from vibration experiment, meanwhile, the first order frequencies of honeycomb sandwich structure composites were obtained by using the sandwich laminboard theory and equivalent panel theory via the finite element software ANSYS. The simulation results were compared to the experiment results to get the error of calculation of the two different equivalent methods, thereby we can select more appropriate equivalent method to ensure the veracity of the result analysis and provide a reference for the optimization design of the fiber-paper honeycomb sandwich structure composites.

Through the comparative study of several enrichment machines ,the performance of the high-speed washer is introduced. The high-speed washer has high dewatering and washing efficiency, he pulp can be concentrated from 0.8% ~ 1.5% consistency to 10% ~ 15%;And it has high ash removal rate and good pulp washing effect also. It can effectively remove the ink particles, fillers, and other small impurities, improve the pulp brightness. At the same time ,the waste paper deinking process treatment systems has been developed.