Paper Technology detailed syllabus for Wood & Paper Technology (WP) for 2021 revision curriculum has been taken from the SITTTRs official website and presented for the Wood & Paper Technology students. For course code, course name, number of credits for a course and other scheme related information, do visit full semester subjects post given below.
For Wood & Paper Technology 4th Sem scheme and its subjects, do visit Wood & Paper Technology (WP) 4th Sem 2021 revision scheme. The detailed syllabus of paper technology is as follows.
Course Objectives:
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Course Outcomes:
On completion of the course, the student will be able to:
- Summarize the processes and operations in papermaking
- Outline the constructional details, operation and maintenance of paper machine
- Describe coating and finishing operations and the properties of paper
- Apply the chemical recovery operations, effluent treatment and pollution control techniques
Module 1:
Stock preparation- Defibration – Hydra Pulper – , Kneaders, Deflakers ; Storage chests and agitators – different types of stock and machine chests – agitator assemblies ; Beating & Refining processes – Theory – factors influencing beating and refining – freeness – Hydration – Fibrillation – and their effects on paper properties ,different types of beaters & refiners -Hollander beater- conical refiner, narrow wide angle shallow angle refiners single and double disc, Types of consistency controllers – working principles and stock proportioning Fibre recovery – method , types of save all – settling and sedimentation. Conical saveall, Flotation saveall, SP Krofta, Filtration- need ,stuff box
Purpose of sizing – internal and surface sizing – sizing chemicals such as rosin, alum, and wax their preparation, – parameters influencing sizing , acidic ,alkaline and neutral Sizing Surface sizing – Sizing chemicals starch as a sizing agent Size presses – straight horizontal, inclined and speed sizes pH, order of addition – pulp characteristics ;Fillers -Types of fillers, properties of fillers, effect of fillers on optical and mechanical properties of paper – theory of retention; Dyes and pigments, dying of paper ;Control Chemicals at the Wet End: Retention aids, drainage aids, defoamers, deflocculants and pitch controlling agents. Strength Additives: Dry and wet strength additives, mechanisms of strength development, factors affecting wet and dry strength properties Cleaning and screening – settling, centrifugal screens – HD and LD cleaning – Different methods of cleaning – pressure screens – centrifugal & cleaners – sorters Deaeration – purpose – common type of dearators – decculators.
Module 2:
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Module 3:
Coating, calendaring & reeling – coating pigments – binders – coating formulations – coating equipment’s, air knife coater, brush coater, cast coating, flexible blade coater, gravure coating, knife coating reverse roll coater – transfer roll coater – curtain coating Calendering – theory of calendering – effect of calendering on paper quality open side closed side calender swimming rolls – Importance of moisture on paper during calendaring common calender troubles hard and soft spots sheet blackening cuts Finishing — winding, different types of winder, converting, slitting, sheet cutting rotary simplex duplex guillotines ,sorting ,counting, packing -sheets – reels – roll wrapping machine weighing and labeling – scabs – reeling- pope reel – core mind reels – friction or surface drive reel Speciality paper – converting of paper – corrugating of paper -uses of wet and dry waxing of paper laminating of paper – properties sizes etc regarding paper bags and envelops – special characteristics of paper and board – creeping – news print , grease proof ,glassine paper and, Tissue paper bond and currency papers Kraft paper and sack draft Basis weight, caliper, density, bulk, folding endurance, tear strength, burst strength, tensile, stretch, paper testing – sample preparations surface properties – Roughness, smoothness pick strength, abrasion resistance oil absorbency, brightness, opacity, gloss sizing degree, colour, water absorbency
Module 4:
Chemical recovery Black liquor – properties – chemical composition of black liquor – desilication and oxidation Evaporators – working principle, types of evaporators-.Steam economy calculation- recovery boiler and furnace Types – function, electrostatic, precipitator (ESP) reactions in recovery in boiler, make up chemical ID fan, FD fan, Boiler feed water properties
Caustisizing Functions and chemical reaction batch and continuous process – green liquor classifiers and sludge removal Green liquor, white liquor, sludge, sulphidity, caustisizing lime slakes, classifiers, white liquor classifier mud washer operation techniques – lime reburning sludge disposal – make up chemicals – properties storage, transportation methods, handling and effect of lime impurities
conventional sulphate recovery systems, Zeolite process, demineralization process, simple calculation of white liquor for cooking
Effluent treatment.- Pulp and paper mill effluent – physical and chemical nature of effluent and its treatment pollution control board and its norms chemicals used in effluent treatment such as polyelectrolyte alum etc – COD, BOD, and colour – air pollution, steam pollution, solid waste – pollution control techniques- equality control system in pulp mills
Text Books:
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Reference Books:
- Gullichsen J. and Paulapuro H., “Papermaking Science and Technology, Book 4: Papermaking Chemistry (Ed. Neimo L.)”, Finnish Paper Engineers’ Association and TAPPI.
- Gullichsen J. and Paulapuro H., “Papermaking Science and Technology, Book 8: Papermaking Part 1, Stock Preparation and Wet End (Ed. Paulapuro H.)”, Finnish Paper Engineers’ Association and TAPPI.
- Hough G., “Chemical Recovery in Alkaline Pulping Processes” TAPPI Press.
- Kocurek M. J., “Pulp and Paper Manufacture, Volume 7: Paper Machine Operations (Ed. Thorp B.)”, TAPPI Press
Online Resources
For the complete syllabus, results, class timetable, and many other features kindly download the iStudy App
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For detailed syllabus of all other subjects of Wood & Paper Technology (WP), 2021 revision curriculum do visit Wood & Paper Technology 4th Sem subject syllabuses for 2021 revision.
To see the syllabus of all other branches of diploma 2021 revision curriculum do visit SITTTR diploma all branches syllabus..
To see the results of Wood & Paper Technology (WP) of diploma 2021 revision curriculum do visit SITTTR diploma Wood & Paper Technology (WP) results..
For all Wood & Paper Technology academic calendars, visit Wood & Paper Technology all semesters academic calendar direct link.