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May 04 2017 · A method of increasing the strength of a paper substrate the method comprising in order adding a dry strength agent to a paper substrate adding a flocculating agent to the paper substrate and adding a GPAM copolymer to the paper substrate wherein addition of GPAM occurs in the wetend of a papermaking process after the substrate has passed through a screen but before the substrate

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  • Wet end chemicals for dry end strength  Ecolab USA Inc

    Wet end chemicals for dry end strength Ecolab USA Inc

    Nov 25 2014 · The invention claimed is 1 A method of increasing the dry strength of a paper substrate the method comprising adding a flocculant and starch to a paper substrate and then adding a glyoxalated polyacrylamide GPAM copolymer to the paper substrate wherein said addition of GPAM occurs in the wetend of a papermaking process after the substrate has passed through a screen but

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  • Cationic polyacrylamide induced flocculation and turbulent

    Cationic polyacrylamide induced flocculation and turbulent

    The Fourdrinier former is an example of the wetend of a paper machine which is used in paper making to concentrate dilute suspensions of fibrous biomass 01–2 dry basis The Fourdrinier former comprises of a headbox where the suspension has been mixed and dosed with flocculants and a continuous porous fabric through which water is drained

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  • Flash Mixing fast and simple way to introduce wet end

    Flash Mixing fast and simple way to introduce wet end

    Flash Mixing fast and simple way to introduce wet end additives efficiently into papermaking process ASA AKD dry and wet strength agents fixing agent rosin resin dye NaOH CO 2 etc can be added into the process in this location as well Suction connection of mixing pump fan pump 1 is about 15–30

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  • Axchem USA Axchem

    Axchem USA Axchem

    Whether you are looking for Functional Solutions such as Strength Sizing and Optical Properties or Process Solutions for optimal wet end performance through our broad range of retention drainage and formation systems contaminant control antifoam and water management programs you need look no further than Axchem USA

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  • The Effect of Retention Aids on Yankee Coatings  The

    The Effect of Retention Aids on Yankee Coatings The

    Improvement in WetEnd Process Variability The implementation of a retention aid program coupled with customized control strategies can reduce wetend and subsequent Yankee coating variations By targeting a FPR or in this case a white water turbidity and controlling it through changes in retention aid addition rates the stabilized wetend will result in a more uniform creping operation

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  • Flocculation Retention and Drainage in Papermaking A

    Flocculation Retention and Drainage in Papermaking A

    Carrageenan as a dry strength additive for papermaking Studies on the wetend chemistry have established that depending on the retention systems used aggregation of the particles can occur by charge neutralization patching bridging or complex flocculation mechanism 12

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  • Improvement of Wetend Performance and Paper Strength

    Improvement of Wetend Performance and Paper Strength

    Improvement of Wetend Performance and Paper Strength with Polyvinylamine Article in Palpu Chongi GisulJournal of Korea Technical Association of the Pulp and Paper Industry 375 · January 2005

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  • wet end  Traduzione in italiano – Dizionario Linguee

    wet end Traduzione in italiano – Dizionario Linguee

    Chlorides Cl Chloride content in tanning effluents is derived mainly from the salt used in raw hide or skin preservation dissolved in the first process phases and from some chemicals such as ammonium chloride sodium chloride and hydrochloric acid used in wet end operations

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  • US Patent for Wet end chemicals for dry end strength in

    US Patent for Wet end chemicals for dry end strength in

    A higher dry and wet tensile index is indicated when the dry strength is added after the flocculant compare Ex 51 vs 52 Likewise addition of the microparticle after the dry strength maintains this increased performance compare Ex 51 vs 53 and 54

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  • Wet end chemicals for dry end strength  Ecolab USA Inc

    Wet end chemicals for dry end strength Ecolab USA Inc

    Nov 25 2014 · A method of increasing the dry strength of a paper substrate the method comprising adding a flocculant and starch to a paper substrate and then adding a glyoxalated polyacrylamide GPAM copolymer to the paper substrate wherein said addition of GPAM occurs in the wetend of a papermaking process after the substrate has passed through a screen but no more than 18 seconds

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  • Axchem USA Axchem

    Axchem USA Axchem

    Whether you are looking for Functional Solutions such as Strength Sizing and Optical Properties or Process Solutions for optimal wet end performance through our broad range of retention drainage and formation systems contaminant control antifoam and water management programs you need look no further than Axchem USA

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  • World Pulp  Paper

    World Pulp Paper

    with Nalco flocculant and microparticle programme the resulting wetend programme can deliver enhanced value to customers’ operations offering a truly unique programme This is particularly true for existing prescreen flocculant additions and polymer additions that have insufficient dilution water In these cases PARETO Mixing Technology

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  • Flash Mixing fast and simple way to introduce wet end

    Flash Mixing fast and simple way to introduce wet end

    The process can generate deposits in uncontrolled situations Slow blending versus fast and effective mixing of additives If mixing of reactive additive into a complex process media is made with a fast and effective manner outcome is a reaction or reactions with the correct manner and with targeted end result Reaction is eg R K Æ AB

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  • 12augsepFEATURES TECHNICAL REPORTS  Tissue World

    12augsepFEATURES TECHNICAL REPORTS Tissue World

    In the manufacturing of wet strength containing grades such as towel and facial tissue effective wet end process management is vital in order to achieve the desired sheet quality attributes and optimum machine operating efficiency at the lowest chemical treatment spend

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  • Dry Strengths Products  paper tech  product  ACAT

    Dry Strengths Products paper tech product ACAT

    The runability is defined as the machine run without breaks and disruptions The runability is particularly in demand for low basis weights Dry strength agents such as BondStar can significantly improve the production process using an ever deteriorating quality of waste paper resulting in stagnant strengths and increasing ash contents

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  • Published June 13 2014 DryWay

    Published June 13 2014 DryWay

    Wet end Wet end technology is based on the experience gained in deliveries of more than 300 machines worldwide including the worlds widest pulp drying line with a trim width of 10 meters and a record capacity of 3700 ADMTd The latest machine design allows for production rates per width meter of 500 ADMTd and minimized energy consumption

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  • Improvement of Wetend Performance and Paper Strength with

    Improvement of Wetend Performance and Paper Strength with

    The wet strength of PVAmimpregnated newsprint was a little higher at pH 10 than at lower pH values Drying at 120°C gave only slightly higher wet strength than did drying at room temperature

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  • THE EFFECT OF SEVERAL NONOXIDIZING BIOCIDES

    THE EFFECT OF SEVERAL NONOXIDIZING BIOCIDES

    chemical nature biocides may interfere with typical wetend chemistry additives and furnish A reference wetend chemistry was set including fixing aid dry strength aid sizing agent and retention system then biocides were added to the furnish bleached virgin fibres mineral filler prior to handsheet making

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  • Basics in Minerals Processing  Metso

    Basics in Minerals Processing Metso

    Basics in Minerals Processing CONTENT Introduction 1 Minerals in operation 2 Size reduction 3 Crushing Grinding Size control 4 Screening Classification Enrichment 5

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  • Method for improving retention and drainage

    Method for improving retention and drainage

    to the thick stock in the machine chest or stuff box before the addition of wet­end process chemicals such as drainage aids Alum and ionic polyacrylamide PAM typically anionic polyacrylamide are also commonly used in alkaline papermaking to achieve improvements in drainage and fines retention

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  • US Patent for Acid colloid in a microparticle system used

    US Patent for Acid colloid in a microparticle system used

    Overflocculation can also affect drainage as it may eventually lead to holes in the sheet andor to a subsequent loss of vacuum pressure in the later stages of dewatering during the papermaking process Retention and drainage aids are generally added to the furnish in the wetend of the paper machine and generally are of three types viz

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  • Carbamoylethylation of guar gum  ScienceDirect

    Carbamoylethylation of guar gum ScienceDirect

    Dec 07 2004 · Carbamoylethylation of guar gum was carried out with acrylamide in presence of sodium hydroxide under different reaction conditions Variables studied were concentration of sodium hydroxide acrylamide guar gum as well as reaction temperature and time The nitrogen content carboxyl content and total ether content were determined

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  • Solution viscosity and flocculation characteristics of

    Solution viscosity and flocculation characteristics of

    In papermaking the addition of flocculants is vital for controlling the equilibrium between the retention of fillers and the drainage of water on the wetend of the paper machine Usually these flocculants are cationic polyelectrolytes which can also be combined with nonionic polymers or

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  • ABOUT US – PT PUJI LESTARI PURNAMA

    ABOUT US – PT PUJI LESTARI PURNAMA

    PT Puji Lestari Purnama is a manufacturer and distributor of chemicals for industrial needs Since 1985 PT Puji Lestari PURNAMA has served various industries in the groundwater in the boiler water treatment and water used in the cooling system by using the product PayOff Water Treatment

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  • Paper Retention Aid  Dispersant Agent Used In

    Paper Retention Aid Dispersant Agent Used In

    As the watersoluble polymers paper retention aid sludge dewatering dispersant agent are specifically designed to handle all the problems occurring in the wet end stages of the papermaking process

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  • Preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    GTA was also used as a cationization reagent Generally cationic starch that is produced by a reaction between starch and GTA is routinely added to a wetend process to improve the dry strength of paper Seong et al synthesized chitooligosaccharide using GTA as antimicrobial agent

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  • Ludwigshafen Germany January 30 2018 Driven by

    Ludwigshafen Germany January 30 2018 Driven by

    Jan 30 2018 · of raw materials transportation and energy BASF will increase prices for wetend paper chemicals in the EMEA region Europe Middle East and Africa by 4 to 12 percent effective February 1 2018 or as existing contracts allow

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  • PEERREVIEWED ARTICLE bioresources

    PEERREVIEWED ARTICLE bioresources

    wet end processes and paper properties under specific experimental conditions paper stock composition chitosan characteristics Therefore deeper research is needed on flocculation behavior of chitosan to lay the groundwork for efficient exploitation of its multiple functions as a wet end additive

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  • BASF to increase prices for wetend paper chemicals in the

    BASF to increase prices for wetend paper chemicals in the

    Jan 30 2018 · Ludwigshafen Germany – January 30 2018 – Driven by continued increases in cost of raw materials transportation and energy BASF will increase prices for wetend paper chemicals in the EMEA region Europe Middle East and Africa by 4 to 12 percent effective February 1 2018 or as existing contracts allow

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