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Crescentformer general process. tissue machine Voith
CRESCENT FORMER
The Crescent Former is the culmination of technological improvements derived from our experience in the manufacturing of four machines since the 1960s (Plain Wire; Sloped Wire; Twin Wire C-Former; and Twin Wire S-Former). The first Crescent Former was invented in the 1970s by the multinational Kimberly Clark which held the patent until the Nineties.
Our technological innovations and more than 50 years of experience in the field of tissue ensure the highest levels of performance from the Recard Crescent Former.
Each Recard Crescent Former is designed to optimize the real operating speed of your production line. We have achieved performance of over 2000 meters per minute.
Case studies related_to_paper_machine_operation
Several case studies related to paper machine operation are discussed. Specially useful for papermakers.
DIY guidelines for optimization of wire vacuum
This presentation indicates how paper mills can collect data from their own machines and do the optimization to reduce energy consumption and get more dryness after the wire part.
Bel champ 15 july 2020
The Bel-Champ dryer section patented by Beloit in the 1990s aimed to reduce drying shrinkage, especially at web edges, but was unable to reduce edge shrinkage significantly. As a result, the Bel-Champ design produces a very high shrinkage gradient at web edges compared to other dryer designs. This high shrinkage gradient causes problems like cockling, curling, wrinkling and increased broke that negatively impact runnability and paper quality. Additionally, the Bel-Champ requires high web and fabric temperatures that reduce drying efficiency and paper strength properties while increasing stickies problems.
Modern papermaking feb 2018 pdf
The document provides an overview of modern papermaking processes. It covers various paper and board grades, their compositions, and the properties contributed by different fiber types. The papermaking process is described, including stock preparation, forming, pressing, drying, and finishing. Recovered fiber usage and deinking processes are also discussed. Key factors that influence paper quality such as fiber length and type are explained.
Single-Felt Dryer Sections
Single-felt dryer sections are used to enhance the runnability of high-speed paper machines. In single-felt dryer sections, the web is supported by the dryer felt (i.e., fabric) in the draws between dryers. Fabric style, air handling equipment, and runnability devices are critical to efficient operation. Steam control in bottom single-felt dryers is also important.
Drying training Equipment Operation and control
No manufactured product plays a more significant role in every area of human activity than
paper and paper products. Its importance in everyday life is obvious from its use in
recording, storage and dissemination of information. Virtually all writing and printing is
done on paper. It is the most widely used wrapping and packaging material, and is
important for structural applications. The uses and applications for pulp and paper
products are virtually limitless. Apart from the products and services that it provides, the
paper and pulp industry is one of the major manufacturing industries in the world
providing employment for vast number of people and contribute to national economy.
The paper making process is essentially a very large dewatering operation where a diluted
solution of pulp suspension with less than 0.5% fibre solid is used. The major sections of a
paper machine consist of: forming section, press section and dryer section. In the forming
section, the fibres present in the diluted pulp and water slurry form paper web through
drainage by gravity and applied suction below the forming fabric. In the press section
additional water in removed by mechanical pressure applied through the nips of a series of
presses or rotating rolls and the wet web is consolidated in this section. Most of the
remaining water is evaporated and inter-fibre binding developed as the paper contacts a
series of steam heated cylinder in the dryer section. Water removal from the wet web to the
final moisture level between 6% and 7% is a critical step of papermaking. Majority of the
functional properties of paper are developed in this section.
In spite of its key role in papermaking, large equipment size, and large capital and operating
costs, drying is arguably the least understood papermaking operation. Books on
papermaking technology generally devote fewer pages to drying than other papermaking
operations such as forming, pressing or calendaring. A similar situation is found in
papermaking courses, in which drying occupies a shorter time than the proportion of space
it takes in a paper machine. Furthermore, a large portion of that time is devoted to the
description of the equipment by its suppliers rather than to its operation by the
papermakers.
Paper Machine
The document describes the key components and processes of a paper machine. It discusses the wet end which includes stock preparation and transport to the headbox. It then explains the headbox, wire section for initial dewatering, press section for further dewatering including conventional, German and shoe presses. Drying sections are described next for heating and drying the paper web. A size press is included to make the surface water repellent before winding the finished paper onto large reels. Water is circulated throughout the entire papermaking process.
Recommended
Crescentformer general process. tissue machine Voith
CRESCENT FORMER
The Crescent Former is the culmination of technological improvements derived from our experience in the manufacturing of four machines since the 1960s (Plain Wire; Sloped Wire; Twin Wire C-Former; and Twin Wire S-Former). The first Crescent Former was invented in the 1970s by the multinational Kimberly Clark which held the patent until the Nineties.
Our technological innovations and more than 50 years of experience in the field of tissue ensure the highest levels of performance from the Recard Crescent Former.
Each Recard Crescent Former is designed to optimize the real operating speed of your production line. We have achieved performance of over 2000 meters per minute.
Case studies related_to_paper_machine_operation
Several case studies related to paper machine operation are discussed. Specially useful for papermakers.
DIY guidelines for optimization of wire vacuum
This presentation indicates how paper mills can collect data from their own machines and do the optimization to reduce energy consumption and get more dryness after the wire part.
Bel champ 15 july 2020
The Bel-Champ dryer section patented by Beloit in the 1990s aimed to reduce drying shrinkage, especially at web edges, but was unable to reduce edge shrinkage significantly. As a result, the Bel-Champ design produces a very high shrinkage gradient at web edges compared to other dryer designs. This high shrinkage gradient causes problems like cockling, curling, wrinkling and increased broke that negatively impact runnability and paper quality. Additionally, the Bel-Champ requires high web and fabric temperatures that reduce drying efficiency and paper strength properties while increasing stickies problems.
Modern papermaking feb 2018 pdf
The document provides an overview of modern papermaking processes. It covers various paper and board grades, their compositions, and the properties contributed by different fiber types. The papermaking process is described, including stock preparation, forming, pressing, drying, and finishing. Recovered fiber usage and deinking processes are also discussed. Key factors that influence paper quality such as fiber length and type are explained.
Single-Felt Dryer Sections
Single-felt dryer sections are used to enhance the runnability of high-speed paper machines. In single-felt dryer sections, the web is supported by the dryer felt (i.e., fabric) in the draws between dryers. Fabric style, air handling equipment, and runnability devices are critical to efficient operation. Steam control in bottom single-felt dryers is also important.
Drying training Equipment Operation and control
No manufactured product plays a more significant role in every area of human activity than
paper and paper products. Its importance in everyday life is obvious from its use in
recording, storage and dissemination of information. Virtually all writing and printing is
done on paper. It is the most widely used wrapping and packaging material, and is
important for structural applications. The uses and applications for pulp and paper
products are virtually limitless. Apart from the products and services that it provides, the
paper and pulp industry is one of the major manufacturing industries in the world
providing employment for vast number of people and contribute to national economy.
The paper making process is essentially a very large dewatering operation where a diluted
solution of pulp suspension with less than 0.5% fibre solid is used. The major sections of a
paper machine consist of: forming section, press section and dryer section. In the forming
section, the fibres present in the diluted pulp and water slurry form paper web through
drainage by gravity and applied suction below the forming fabric. In the press section
additional water in removed by mechanical pressure applied through the nips of a series of
presses or rotating rolls and the wet web is consolidated in this section. Most of the
remaining water is evaporated and inter-fibre binding developed as the paper contacts a
series of steam heated cylinder in the dryer section. Water removal from the wet web to the
final moisture level between 6% and 7% is a critical step of papermaking. Majority of the
functional properties of paper are developed in this section.
In spite of its key role in papermaking, large equipment size, and large capital and operating
costs, drying is arguably the least understood papermaking operation. Books on
papermaking technology generally devote fewer pages to drying than other papermaking
operations such as forming, pressing or calendaring. A similar situation is found in
papermaking courses, in which drying occupies a shorter time than the proportion of space
it takes in a paper machine. Furthermore, a large portion of that time is devoted to the
description of the equipment by its suppliers rather than to its operation by the
papermakers.
Paper Machine
The document describes the key components and processes of a paper machine. It discusses the wet end which includes stock preparation and transport to the headbox. It then explains the headbox, wire section for initial dewatering, press section for further dewatering including conventional, German and shoe presses. Drying sections are described next for heating and drying the paper web. A size press is included to make the surface water repellent before winding the finished paper onto large reels. Water is circulated throughout the entire papermaking process.
Fiber and Pulp Characteristics for Papermaking
This document discusses differences between hardwood and softwood fibers used for papermaking. Hardwood fibers are shorter and thinner than softwood fibers. Softwoods contain mostly fibers (tracheids) which form the fiber network in paper, while hardwoods also contain vessel and ray cells which can cause issues. Fiber length, diameter, cell wall thickness and wood density impact paper properties like strength, bulk, and formation. The roles of different pulps, fillers and additives in achieving desired paper qualities are also reviewed. Optimal mechanical pulps for printing papers contain fibrillated fibers, fines, and few shives.
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The document discusses steam systems used in paper drying processes. It describes the dryer section and factors that influence temperature control. It then explains how pressure builds up in drying cylinders and ducts due to moisture and ventilation. Various steam systems are outlined, including cascade, thermocompressor, and blowthrough configurations used to supply steam to dryers, heaters, and other loads. Details are provided on condensate drainage and the need for steam lock release devices.
Paper manufacture
The document summarizes the key steps and components in the paper manufacturing process using a paper machine. It describes the basic components of the paper machine including the headbox, which deposits the pulp slurry onto the wire screen, and the fourdrinier wet end, where water is removed from the web through gravity, foils, and suction before entering the press and dryer sections. It provides details on key components in the wet end like the slice, forming board, table rolls, and couch roll that work to remove water and form the paper web.
Potlatch Brainerd Wet End Training 3
The document discusses the paper forming process and focuses on the five zones of the forming table: entry phase, forming zone, dewatering zone, transition zone, and consolidation zone. It describes how each area impacts fiber mat formation and the development of the mat as it moves through the machine. Key aspects covered include the headbox, slice, forming board, table rolls, foils, dewatering equipment, and maintaining the proper activity level in each zone to develop the mat and remove water effectively.
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Suction Rolls
The document discusses different types of suction rolls used in papermaking, how they function to remove water from sheets and transfer sheets between felts. It explains that seal strips are important for defining the vacuum area and can wear out over time due to factors like overloading pressure. Proper operation of suction rolls through techniques like adjusting air pressure, cleaning showers, and box attitude optimization is important to maximize efficiency and minimize costs.
Doctor Blade Metering
By Tony Donato, Product Development Engineer, Harper Corporation of America
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optimization of wire vacuum
This document discusses strategies for optimizing vacuum in the wire part of a paper machine to conserve energy. It notes that increasing vacuum and dwell time can increase dryness up to a point, after which gains are minimal. Recommendations include applying vacuum in increasing order with the highest vacuum in the last box and reducing open area and peak vacuum where dryness is not significantly affected. Reducing dwell time from excessive levels like 150ms down to 10-15ms can substantially reduce air flow needs and energy consumption. Replacing vacuum pumps or installing more efficient options like roots blowers or variable frequency drives can achieve further savings. Proper design optimization of vacuum and the wire table offers significant potential for increased energy efficiency and improved wire life.
Dryer Condensing Loads Following Sheet Breaks
Tests were conducted at the Kadant Johnson Research Center in Three Rivers, Michigan USA to directly measure the rate of condensate evacuation from dryers with different control strategies in response to a sheet break and recovery.
Strength technologies for tissue makers
The consumer demand and stringent regulatory environment continue to challenge tissue makers and chemical suppliers, requiring unique quality attributes, more efficient chemical additives and environmentally friendly processes. The two key functional characteristics in the production of tissue and towel are dry and wet tensile strength that must be balanced to provide desired mechanical characteristics, handfeel softness and sufficient dispersibility in water when required. Kemira’s new developments in the strength area bring tissue makers a complete solution, allowing to achieve not only desired quality attributes and reduced environmental impact but also to help improve the efficiency and economics of their processes. In this paper, we will review the traditional and novel solutions for strength and demonstrate the benefits using laboratory data and industrial case studies.
Determination of doctor angle
This document presents a simple method for determining the angle of a doctor blade on any roll using two templates. Template A is placed with one corner touching the roll and doctor blade, while Template B is placed with one corner also touching the roll and doctor blade. The overlap angle between the templates indicates the doctor blade angle. For smaller rolls, there is a minor error that can be corrected using a scaling on Template B or a calculated error angle formula based on template length and roll diameter. Measuring the angle using this method provides a starting point, and the supplier's guidelines should be checked to ensure the correct doctor blade angle.
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Some insights of basis weight control by process optimization, approach flow minor modifications and similar actions.
Wrinkles and piping in paper
Wrinkles & Piping in paper reels is an annoying problem. When the reel is used for any conversion, printing, lamination or anything, you get rejects and rejects. This presentation gives some thoughts on how can we minimize wrinkles and piping.
Extruders: defects and troubleshooting.pptx
The slide contains details of most common defects and troubleshooting(reason, causes, remedy) of polymer extruders used in industries for various types of polymer product manufacturing.
Final version training
The document describes the process of paper production, including:
1) Wood fibers are the main raw material and are unlocked from surrounding tissue through mechanical or chemical processes to produce pulp.
2) The pulp is refined, additives are mixed in, and the slurry is formed into a continuous web on a paper machine where water is removed through several sections.
3) Key factors that determine paper properties are fiber length and orientation, degree of refining, and additives used. The paper making process produces a fiber-oriented sheet with different characteristics on each side.
Fibers in paper
This document discusses fibers that are used in papermaking. It begins by explaining that the properties of paper are largely determined by the base paper fibers. It then discusses different types of fibers like wood, herbaceous plants, and seed hair fibers. The document focuses on wood fibers and the pulp making process. It describes softwood and hardwood fibers and pulping processes like mechanical, semi-chemical, and chemical pulping. Refining and its effects on fiber properties are also explained. The importance of fiber length, fines, and vessel elements are covered. Finally, priority properties for different paper types are listed.
Polymer Extrusion problems & Defects
This ppt uses pictures and causes to describe different polymer extrusion defects and how to avoid them.
It mainly focuses on polymers
Pulp and Paper Industry (Pulp Mill, Paper Mill, Printing and Writing Papers, ...
Pulp and paper are manufactured from raw materials containing cellulose fibers, generally wood, recycled paper, and agricultural residues. In developing countries, about 60% of cellulose fibers originate from non wood raw materials such as bagasse, cereal straw, bamboo, reeds, esparto grass, jute, flax, and sisal. The main steps in pulp and paper manufacturing are: Raw material preparation and handling, Pulp manufacturing, Pulp Washing and Screening, Chemical recovery, Bleaching, Stock Preparation, and Papermaking.
See more
https://goo.gl/MqZ7s4
https://goo.gl/jByd5s
https://goo.gl/4KnBEM
Contact us
Niir Project Consultancy Services
106-E, Kamla Nagar, Opp. Spark Mall,
New Delhi-110007, India.
Email: npcs.ei@gmail.com , info@entrepreneurindia.co
Tel: +91-11-23843955, 23845654, 23845886, 8800733955
Mobile: +91-9811043595
Fax: +91-11-23841561
Website : www.entrepreneurindia.co , www.niir.org
Tags
Pulp and Paper Industry, Pulp Mill, Paper Mill, Printing and Writing Papers, Corrugating Medium Paper, Newspapers Hardboards, Pulp and paper processing industry, Pulp and paper making business, Investment Opportunity for Pulp & Paper, Paper Manufacturing Plant, Pulp from Bamboo, Profitable pulp and paper business, Pulp and paper production, Manufacture of corrugating medium paper, Feasibility of recycled newspapers hardboards, Paper mill in India, Best small and cottage scale industries, Book of Pulp and Paper, Paper Board and Paper-based Technology, Book on Pulping and Papermaking, Business guidance for Pulp and paper industry, Business guidance to clients, Business Plan for a Startup Business, Business start-up, Drying of Paper, Great Opportunity for Startup, Hard-Board manufacturing, How to Start a Pulp and paper industry?, How to Start a Pulp and paper Production Business, How to start a successful Pulp and paper business, How to Start Pulp and paper Processing Industry in India, How to Start-Up a paper converting Business, Industry of pulp and paper, Kraft Paper manufacturing, Kraft Paper production, Kraft Process in the paper and pulp industry, Manufacture of pulp and paper, Modern small and cottage scale industries, Most Profitable Pulp and paper Processing Business Ideas, New small scale ideas in Pulp and paper processing industry, Paper and pulp industries, Paper and Pulp Production Technology book, Paper Making Small Business Manufacturing, Paper Production, Paper production line, Paper Production: The Kraft Process in the paper and pulp industry, Paper, Pulp and Paper Conversion, Papermaking Science and Technology book, Production of Kraft Paper, Production of Soda Semi-Chemical Pulp, Profitable small and cottage scale industries, Profitable Small Scale Pulp and paper manufacturing, Project for startups, Pulp and paper Based Profitable Projects, Pulp and paper Based Small Scale Industries Projects, Pulp and Paper Chemistry and Technology
Effects of Friction in Papermaking
This document discusses how friction affects various stages of the papermaking process and product quality. It provides background on friction forces in papermaking and how coefficients of friction can impact winding efficiency and quality. The document then examines how different paper chemicals, fillers, and components from wood extractives can increase or decrease the coefficient of friction in paper. Maintaining consistent friction throughout the papermaking process is important for optimal performance.
Vacuum pump
This document discusses vacuum pumps and their operation. It begins by explaining that vacuum pumps operate similarly to air compressors but exhaust air to the atmosphere rather than intake it. It then discusses various types of vacuum pumps including positive displacement pumps like piston, diaphragm, and rotary vane pumps, as well as non-positive displacement pumps. The document provides details on evaluating vacuum pump performance based on factors like vacuum level, air removal rate, power requirements, and temperature effects. It concludes with discussing factors to consider when selecting a vacuum pump for a specific application.
European Paper Industry‘s Views on the Waste Targets Review
This document outlines the European Paper Industry's views on proposed targets for waste management and recycling. It discusses current paper recycling rates across Europe, proposes specific recycling targets for paper packaging of 80% by 2020, and advocates measuring recycling based on input to the paper industry rather than a percentage alone. The paper industry believes complementary measures are needed like separate collection of paper, landfill bans, and restrictions on incineration. It also addresses definitions, extended producer responsibility, and the need to consider renewability in the circular economy. In conclusion, the paper industry welcomes recycling goals but says enabling measures must also be implemented.
Sheet fed drying
The document discusses ink drying in sheet-fed printing. It describes the physical and chemical parts of the drying process, including absorption of ink and oxidation of binders over several hours. It notes that siccatives and spray powder can accelerate drying by improving oxygen exposure and holding sheets apart. Problems like inadequate drying, silk screening issues, and cracking can occur if drying is not sufficient or heavier paper grades are used.
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Fiber and Pulp Characteristics for Papermaking
This document discusses differences between hardwood and softwood fibers used for papermaking. Hardwood fibers are shorter and thinner than softwood fibers. Softwoods contain mostly fibers (tracheids) which form the fiber network in paper, while hardwoods also contain vessel and ray cells which can cause issues. Fiber length, diameter, cell wall thickness and wood density impact paper properties like strength, bulk, and formation. The roles of different pulps, fillers and additives in achieving desired paper qualities are also reviewed. Optimal mechanical pulps for printing papers contain fibrillated fibers, fines, and few shives.
3b Paper Machine Steam Systems Part2
The document discusses steam systems used in paper drying processes. It describes the dryer section and factors that influence temperature control. It then explains how pressure builds up in drying cylinders and ducts due to moisture and ventilation. Various steam systems are outlined, including cascade, thermocompressor, and blowthrough configurations used to supply steam to dryers, heaters, and other loads. Details are provided on condensate drainage and the need for steam lock release devices.
Paper manufacture
The document summarizes the key steps and components in the paper manufacturing process using a paper machine. It describes the basic components of the paper machine including the headbox, which deposits the pulp slurry onto the wire screen, and the fourdrinier wet end, where water is removed from the web through gravity, foils, and suction before entering the press and dryer sections. It provides details on key components in the wet end like the slice, forming board, table rolls, and couch roll that work to remove water and form the paper web.
Potlatch Brainerd Wet End Training 3
The document discusses the paper forming process and focuses on the five zones of the forming table: entry phase, forming zone, dewatering zone, transition zone, and consolidation zone. It describes how each area impacts fiber mat formation and the development of the mat as it moves through the machine. Key aspects covered include the headbox, slice, forming board, table rolls, foils, dewatering equipment, and maintaining the proper activity level in each zone to develop the mat and remove water effectively.
Suggestive Improvements in Yankee Internal Design
The object of this presentation is to indicate possible improvements by which condensate removal efficiency of yankee cylinder (MG cylinder, as commonly called in India) can be improved.
Suction Rolls
The document discusses different types of suction rolls used in papermaking, how they function to remove water from sheets and transfer sheets between felts. It explains that seal strips are important for defining the vacuum area and can wear out over time due to factors like overloading pressure. Proper operation of suction rolls through techniques like adjusting air pressure, cleaning showers, and box attitude optimization is important to maximize efficiency and minimize costs.
Doctor Blade Metering
By Tony Donato, Product Development Engineer, Harper Corporation of America
The What and How in Anilox Ink Metering
optimization of wire vacuum
This document discusses strategies for optimizing vacuum in the wire part of a paper machine to conserve energy. It notes that increasing vacuum and dwell time can increase dryness up to a point, after which gains are minimal. Recommendations include applying vacuum in increasing order with the highest vacuum in the last box and reducing open area and peak vacuum where dryness is not significantly affected. Reducing dwell time from excessive levels like 150ms down to 10-15ms can substantially reduce air flow needs and energy consumption. Replacing vacuum pumps or installing more efficient options like roots blowers or variable frequency drives can achieve further savings. Proper design optimization of vacuum and the wire table offers significant potential for increased energy efficiency and improved wire life.
Dryer Condensing Loads Following Sheet Breaks
Tests were conducted at the Kadant Johnson Research Center in Three Rivers, Michigan USA to directly measure the rate of condensate evacuation from dryers with different control strategies in response to a sheet break and recovery.
Strength technologies for tissue makers
The consumer demand and stringent regulatory environment continue to challenge tissue makers and chemical suppliers, requiring unique quality attributes, more efficient chemical additives and environmentally friendly processes. The two key functional characteristics in the production of tissue and towel are dry and wet tensile strength that must be balanced to provide desired mechanical characteristics, handfeel softness and sufficient dispersibility in water when required. Kemira’s new developments in the strength area bring tissue makers a complete solution, allowing to achieve not only desired quality attributes and reduced environmental impact but also to help improve the efficiency and economics of their processes. In this paper, we will review the traditional and novel solutions for strength and demonstrate the benefits using laboratory data and industrial case studies.
Determination of doctor angle
This document presents a simple method for determining the angle of a doctor blade on any roll using two templates. Template A is placed with one corner touching the roll and doctor blade, while Template B is placed with one corner also touching the roll and doctor blade. The overlap angle between the templates indicates the doctor blade angle. For smaller rolls, there is a minor error that can be corrected using a scaling on Template B or a calculated error angle formula based on template length and roll diameter. Measuring the angle using this method provides a starting point, and the supplier's guidelines should be checked to ensure the correct doctor blade angle.
Engineering aspects of basis weight control
Some insights of basis weight control by process optimization, approach flow minor modifications and similar actions.
Wrinkles and piping in paper
Wrinkles & Piping in paper reels is an annoying problem. When the reel is used for any conversion, printing, lamination or anything, you get rejects and rejects. This presentation gives some thoughts on how can we minimize wrinkles and piping.
Extruders: defects and troubleshooting.pptx
The slide contains details of most common defects and troubleshooting(reason, causes, remedy) of polymer extruders used in industries for various types of polymer product manufacturing.
Final version training
The document describes the process of paper production, including:
1) Wood fibers are the main raw material and are unlocked from surrounding tissue through mechanical or chemical processes to produce pulp.
2) The pulp is refined, additives are mixed in, and the slurry is formed into a continuous web on a paper machine where water is removed through several sections.
3) Key factors that determine paper properties are fiber length and orientation, degree of refining, and additives used. The paper making process produces a fiber-oriented sheet with different characteristics on each side.
Fibers in paper
This document discusses fibers that are used in papermaking. It begins by explaining that the properties of paper are largely determined by the base paper fibers. It then discusses different types of fibers like wood, herbaceous plants, and seed hair fibers. The document focuses on wood fibers and the pulp making process. It describes softwood and hardwood fibers and pulping processes like mechanical, semi-chemical, and chemical pulping. Refining and its effects on fiber properties are also explained. The importance of fiber length, fines, and vessel elements are covered. Finally, priority properties for different paper types are listed.
Polymer Extrusion problems & Defects
This ppt uses pictures and causes to describe different polymer extrusion defects and how to avoid them.
It mainly focuses on polymers
Pulp and Paper Industry (Pulp Mill, Paper Mill, Printing and Writing Papers, ...
Pulp and paper are manufactured from raw materials containing cellulose fibers, generally wood, recycled paper, and agricultural residues. In developing countries, about 60% of cellulose fibers originate from non wood raw materials such as bagasse, cereal straw, bamboo, reeds, esparto grass, jute, flax, and sisal. The main steps in pulp and paper manufacturing are: Raw material preparation and handling, Pulp manufacturing, Pulp Washing and Screening, Chemical recovery, Bleaching, Stock Preparation, and Papermaking.
See more
https://goo.gl/MqZ7s4
https://goo.gl/jByd5s
https://goo.gl/4KnBEM
Contact us
Niir Project Consultancy Services
106-E, Kamla Nagar, Opp. Spark Mall,
New Delhi-110007, India.
Email: npcs.ei@gmail.com , info@entrepreneurindia.co
Tel: +91-11-23843955, 23845654, 23845886, 8800733955
Mobile: +91-9811043595
Fax: +91-11-23841561
Website : www.entrepreneurindia.co , www.niir.org
Tags
Pulp and Paper Industry, Pulp Mill, Paper Mill, Printing and Writing Papers, Corrugating Medium Paper, Newspapers Hardboards, Pulp and paper processing industry, Pulp and paper making business, Investment Opportunity for Pulp & Paper, Paper Manufacturing Plant, Pulp from Bamboo, Profitable pulp and paper business, Pulp and paper production, Manufacture of corrugating medium paper, Feasibility of recycled newspapers hardboards, Paper mill in India, Best small and cottage scale industries, Book of Pulp and Paper, Paper Board and Paper-based Technology, Book on Pulping and Papermaking, Business guidance for Pulp and paper industry, Business guidance to clients, Business Plan for a Startup Business, Business start-up, Drying of Paper, Great Opportunity for Startup, Hard-Board manufacturing, How to Start a Pulp and paper industry?, How to Start a Pulp and paper Production Business, How to start a successful Pulp and paper business, How to Start Pulp and paper Processing Industry in India, How to Start-Up a paper converting Business, Industry of pulp and paper, Kraft Paper manufacturing, Kraft Paper production, Kraft Process in the paper and pulp industry, Manufacture of pulp and paper, Modern small and cottage scale industries, Most Profitable Pulp and paper Processing Business Ideas, New small scale ideas in Pulp and paper processing industry, Paper and pulp industries, Paper and Pulp Production Technology book, Paper Making Small Business Manufacturing, Paper Production, Paper production line, Paper Production: The Kraft Process in the paper and pulp industry, Paper, Pulp and Paper Conversion, Papermaking Science and Technology book, Production of Kraft Paper, Production of Soda Semi-Chemical Pulp, Profitable small and cottage scale industries, Profitable Small Scale Pulp and paper manufacturing, Project for startups, Pulp and paper Based Profitable Projects, Pulp and paper Based Small Scale Industries Projects, Pulp and Paper Chemistry and Technology
Effects of Friction in Papermaking
This document discusses how friction affects various stages of the papermaking process and product quality. It provides background on friction forces in papermaking and how coefficients of friction can impact winding efficiency and quality. The document then examines how different paper chemicals, fillers, and components from wood extractives can increase or decrease the coefficient of friction in paper. Maintaining consistent friction throughout the papermaking process is important for optimal performance.
Vacuum pump
This document discusses vacuum pumps and their operation. It begins by explaining that vacuum pumps operate similarly to air compressors but exhaust air to the atmosphere rather than intake it. It then discusses various types of vacuum pumps including positive displacement pumps like piston, diaphragm, and rotary vane pumps, as well as non-positive displacement pumps. The document provides details on evaluating vacuum pump performance based on factors like vacuum level, air removal rate, power requirements, and temperature effects. It concludes with discussing factors to consider when selecting a vacuum pump for a specific application.
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Pulp and Paper Industry (Pulp Mill, Paper Mill, Printing and Writing Papers, ...
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European Paper Industry‘s Views on the Waste Targets Review
This document outlines the European Paper Industry's views on proposed targets for waste management and recycling. It discusses current paper recycling rates across Europe, proposes specific recycling targets for paper packaging of 80% by 2020, and advocates measuring recycling based on input to the paper industry rather than a percentage alone. The paper industry believes complementary measures are needed like separate collection of paper, landfill bans, and restrictions on incineration. It also addresses definitions, extended producer responsibility, and the need to consider renewability in the circular economy. In conclusion, the paper industry welcomes recycling goals but says enabling measures must also be implemented.
Sheet fed drying
The document discusses ink drying in sheet-fed printing. It describes the physical and chemical parts of the drying process, including absorption of ink and oxidation of binders over several hours. It notes that siccatives and spray powder can accelerate drying by improving oxygen exposure and holding sheets apart. Problems like inadequate drying, silk screening issues, and cracking can occur if drying is not sufficient or heavier paper grades are used.
Paper chemicals for paper making industry
paper chemicals for paper making industry, dry strength resin (PAM), styrene acrylate surface sizing agent, AKD Alkyl Ketene Dimer Emulsion, Alkyl Ketene Dimer Polymer Emulsifier, surface strength agent, solid surface sizing agent, DMB?DML monomer, etc
Pemakaian Steam Shower pada Press Section (Paper Machine)
Makalah ini membahas penggunaan steam shower pada press section dalam proses produksi kertas. Steam shower digunakan untuk memanaskan fabric dan lembaran kertas sebelum masuk ke nip press untuk mempercepat proses dewatering. Pemanasan ini meningkatkan efisiensi proses dewatering karena menurunkan viskositas air. Pemasangan steam shower memberikan manfaat seperti fabric yang lebih kering dan bersih, serta meningkatkan kinerja mesin kertas.
Paper Drying Energy Tips
Thermocompressors use high-pressure steam to raise the pressure of low-pressure steam for use in dryers. They must be properly sized to match the application, as oversized thermocompressors can operate with inadequate control and vent excess steam. Installing dryer bars on low-speed dryers can reduce energy consumption by lowering the machine's rimming speed and reducing drive load. Monitoring dryer section ventilation systems by checking temperature rises and drops can indicate issues that increase energy usage like dirty filters or un draining steam coils. Non-contact dryers that do not touch the paper sheet should be disconnected from steam service to prevent wasted blow-through steam.
Central steam heating system report
Central steam heating system Central Heating is a heating system in which air or water is heated at a central point and sent through the whole interior of a building via vents or pipes and radiators to provide warmth in multiple rooms or parts of a building. Central heat sources can be boilers for oil, gas, biomass or solar heating systems. Depending on the size of the building and available energy sources, a central heating solution might have multiple shapes.
Comparison of E-book vs Paper-book 20120930
1) The document compares the carbon footprint of a paper book and an e-book.
2) It finds that the paper book has a carbon footprint of 579g of CO2 equivalents per copy, while the e-book has a lower footprint of 277g of CO2 equivalents per copy.
3) A sensitivity analysis shows that even with different user behaviors of the e-book reading device, the e-book still has a lower carbon footprint than the paper book.
Fibra y su microscopia sus efectos en el papel
Se entiende por microestructura de la madera la que se puede ver con el microscopio óptico, es
decir que son las estructuras intermedias entre lo visible a simple vista, y las de nivel cuasi molecular,
solo distinguibles con el microscopio electrónico, que se denominan ultraestructuras. La microestructura
es la más importante para comprender la morfología de las materias primas fibrosas, como así
también para el análisis de lo que sucede durante los procesos de fabricación de la pulpa y el papel.
Con el microscopio óptico se ven perfectamente los elementos celulares de los tejidos vegetales, y
ello es lo que vamos a estudiar a partir de ahora.
Se debe aclarar primeramente que si bien botánica mente
los elementos de gran longitud de las coníferas se denominan
traqueidas, para los papeleros se engloban junto con las
de las latifoliadas con la denominación general de ‘fibras’.
Se definen cuatro parámetros morfológicos que poseen
mayor o menor influencia en las propiedades de la hoja
Operating press
The document discusses adjusting various aspects of an operating printing press, including:
1) Adjusting ink and water feed manually or automatically at low speed to minimize waste during setup.
2) Adjusting ink feed based on maintaining constant print density, the pressman's eye, and proofs accepted by the client.
3) Adjusting water feed based on the minimum needed level, the pressman's experience with the paper, and previously printed sheets, with make-ready waste typically being 500-5,000 copies.
Central steam heating system
The document provides details about setting up a central heating system for an apartment building. It lists the project leader and members. It then discusses key aspects of central heating including how it works by heating air or water at a central point and distributing it via pipes and radiators. It covers heat sources, distribution methods, and factors affecting comfort. The document also provides guidance on calculating heat loads, selecting boilers and radiators, and insulating components. It includes specifications for the boiler and piping layout for the apartments.
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