{"id":7954,"date":"2023-02-24T06:58:40","date_gmt":"2023-02-24T06:58:40","guid":{"rendered":"https:\/\/eggtraysmachines.agicogroup.ru\/?p=7954"},"modified":"2023-02-24T06:58:44","modified_gmt":"2023-02-24T06:58:44","slug":"how-to-make-paper-pulp-techniques-equipment-process","status":"publish","type":"post","link":"https:\/\/eggtraysmachines.agicogroup.ru\/blog\/how-to-make-paper-pulp-techniques-equipment-process\/","title":{"rendered":"How To Make Paper Pulp: Techniques, Equipment, &amp; Process"},"content":{"rendered":"\n<p>Paper pulp is a soft, fibrous material made from wood, paper products, or other natural fibers that are broken down into small pieces and processed to remove impurities. It is the raw material used to produce various paper products such as newspaper, cardboard, tissue paper, and printing paper. The pulp-making process involves several steps, including preparation, cooking, refining, and bleaching.<\/p>\n\n\n\n<p>Paper pulp is essential to the paper manufacturing industry as it provides the necessary raw material to produce high-quality paper products. The process of making paper pulp involves utilizing a variety of techniques and equipment to break down raw materials into a form that can be easily processed into paper.<\/p>\n\n\n\n<p>In this article, we will provide an overview of the paper pulp making process, including the techniques, equipment, and steps involved in making paper pulp.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Raw Materials for Paper Pulp Making<\/h2>\n\n\n\n<p>Paper pulp can be made from a variety of raw materials, including wood, recycled paper, agricultural residues, and non-wood fibers such as bamboo, bagasse, and kenaf. The choice of raw material depends on factors such as availability, cost, and the desired properties of the final product.<\/p>\n\n\n\n<p><strong>Types of Raw Materials Used for Paper Pulp Making<\/strong><\/p>\n\n\n\n<p>Wood: Wood is the primary raw material used for paper pulp making. Softwood and hardwood are commonly used, with softwood being preferred for its longer fibers and higher yield.<\/p>\n\n\n\n<p>Recycled paper: Recycled paper is an increasingly popular raw material due to its environmental benefits. It is collected, sorted, and processed into pulp, which is then used to make new paper products.<\/p>\n\n\n\n<p>Agricultural residues: Agricultural residues such as straw, bagasse, and cotton stalks can also be used as raw materials for paper pulp making.<\/p>\n\n\n\n<p>Non-wood fibers: Non-wood fibers such as bamboo, kenaf, and flax can also be used for pulp making.<\/p>\n\n\n\n<p><strong>Properties of Ideal Raw Materials<\/strong><\/p>\n\n\n\n<p>The ideal raw material for paper pulp making should have the following properties:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High cellulose content: Cellulose is the primary component of paper, and a high cellulose content results in a higher yield of pulp.<\/li>\n\n\n\n<li>Long and flexible fibers: Longer fibers produce stronger paper, and flexible fibers are easier to process and refine.<\/li>\n\n\n\n<li>Low lignin content: Lignin is a component of wood that can interfere with paper quality and production, so a lower lignin content is preferred.<\/li>\n\n\n\n<li>High pulp yield: A high yield of pulp from the raw material reduces the cost and environmental impact of pulp production.<\/li>\n<\/ul>\n\n\n\n<p><strong>Sources of Raw Materials<\/strong><\/p>\n\n\n\n<p>The sources of raw materials for paper pulp making include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Forests: Trees are the primary source of wood fiber for pulp making.<\/li>\n\n\n\n<li>Recycling centers: Recycled paper is collected from homes, offices, and other sources and processed into pulp.<\/li>\n\n\n\n<li>Agricultural farms: Agricultural residues such as straw and bagasse can be collected from farms and processed into pulp.<\/li>\n\n\n\n<li>Non-wood fiber farms: Non-wood fibers such as bamboo and kenaf can be grown specifically for pulp production.<\/li>\n<\/ul>\n\n\n\n<p><strong>Pre-treatment of Raw Materials<\/strong><\/p>\n\n\n\n<p>Raw materials need to be pre-treated before they can be used for paper pulp making. This involves removing impurities such as dirt, rocks, and bark, and breaking down the raw material into smaller pieces or fibers.<\/p>\n\n\n\n<p><strong>Advantages and Disadvantages of Each Type of Raw Material<\/strong><\/p>\n\n\n\n<p>Wood:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Advantages: Abundant, high yield, long fibers, and easy to process and refine.<\/li>\n\n\n\n<li>Disadvantages: Can have a negative environmental impact, especially if not sourced sustainably.<\/li>\n<\/ul>\n\n\n\n<p>Recycled paper:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Advantages: Reduces waste, conserves resources, and has a lower environmental impact than using virgin wood.<\/li>\n\n\n\n<li>Disadvantages: Lower yield, can have lower quality, and may contain contaminants such as ink.<\/li>\n<\/ul>\n\n\n\n<p>Agricultural residues:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Advantages: Reduces waste and utilizes a byproduct of agriculture.<\/li>\n\n\n\n<li>Disadvantages: Lower yield, may contain impurities such as dirt and rocks, and can require additional processing.<\/li>\n<\/ul>\n\n\n\n<p>Non-wood fibers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Advantages: Can be grown quickly, utilize land not suitable for other crops, and have a lower environmental impact than using virgin wood.<\/li>\n\n\n\n<li>Disadvantages: Lower yield, shorter fibers, and may require additional processing.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Techniques for Paper Pulp Making<\/h2>\n\n\n\n<p>There are several techniques for making paper pulp, including mechanical, chemical, semi-chemical, and non-wood pulp making techniques. Each technique has its own advantages and disadvantages, and the choice of technique depends on factors such as the type of raw material, the desired properties of the final product, and the environmental impact of the process.<\/p>\n\n\n\n<p><strong>Mechanical Pulp Making Technique<\/strong><\/p>\n\n\n\n<p>Mechanical pulp making is a process of grinding, refining, and separating wood fibers to produce pulp. The process involves feeding wood chips into a grinder, which breaks them down into smaller pieces. The wood pieces are then fed into a refiner, which further grinds and refines the wood fibers, separating them from each other. The resulting pulp has a high yield and a high lignin content.<\/p>\n\n\n\n<p>Advantages of Mechanical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High yield of pulp from raw materials<\/li>\n\n\n\n<li>Low energy consumption and cost<\/li>\n\n\n\n<li>High opacity and printability of resulting paper<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of Mechanical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High lignin content can lead to yellowing and deterioration of paper over time<\/li>\n\n\n\n<li>Lower strength and durability of paper compared to other techniques<\/li>\n\n\n\n<li>Can have a negative environmental impact due to the high use of chemicals and water in the process.<\/li>\n<\/ul>\n\n\n\n<p><strong>Chemical Pulp Making Technique<\/strong><\/p>\n\n\n\n<p>Chemical pulp making is a process of breaking down raw materials using chemicals and heat to produce pulp. The process involves cooking wood chips or other raw materials in a chemical solution to remove lignin and other impurities, leaving behind pure cellulose fibers. The resulting pulp has a high strength and durability.<\/p>\n\n\n\n<p>Advantages of Chemical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High strength and durability of resulting paper<\/li>\n\n\n\n<li>Lower lignin content, leading to whiter and brighter paper<\/li>\n\n\n\n<li>Can use a variety of raw materials, including non-wood fibers<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of Chemical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High energy consumption and cost<\/li>\n\n\n\n<li>High use of chemicals and water, leading to environmental concerns<\/li>\n\n\n\n<li>Lower yield of pulp compared to mechanical pulp making<\/li>\n<\/ul>\n\n\n\n<p><strong>Semi-Chemical Pulp Making Technique<\/strong><\/p>\n\n\n\n<p>Semi-chemical pulp making is a process that combines mechanical and chemical processes to produce pulp. The process involves mechanically breaking down the raw material and then cooking it in a chemical solution. The resulting pulp has a higher strength than mechanical pulp and a higher yield than chemical pulp.<\/p>\n\n\n\n<p>Advantages of Semi-Chemical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher strength and yield than mechanical pulp<\/li>\n\n\n\n<li>Lower energy consumption and cost than chemical pulp<\/li>\n\n\n\n<li>Can use a variety of raw materials<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of Semi-Chemical Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lower strength and durability than chemical pulp<\/li>\n\n\n\n<li>High use of chemicals and water, leading to environmental concerns<\/li>\n<\/ul>\n\n\n\n<p><strong>Non-Wood Pulp Making Technique<\/strong><\/p>\n\n\n\n<p>Non-wood pulp making is a process of breaking down non-wood fibers such as bamboo, bagasse, and kenaf to produce pulp. The process is similar to chemical pulp making and involves cooking the raw material in a chemical solution to remove impurities and separate the cellulose fibers.<\/p>\n\n\n\n<p>Advantages of Non-Wood Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Utilizes a renewable and sustainable source of raw material<\/li>\n\n\n\n<li>Lower environmental impact compared to wood-based pulp making<\/li>\n\n\n\n<li>Can produce a high-quality pulp with desirable properties<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of Non-Wood Pulp Making:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Higher cost of raw materials compared to wood-based pulp making<\/li>\n\n\n\n<li>Lower yield of pulp compared to wood-based pulp making<\/li>\n\n\n\n<li>May require additional processing to remove impurities and improve quality.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Equipment for Paper Pulp Making<\/h2>\n\n\n\n<p>The equipment used in paper pulp making varies depending on the type of pulp making technique being used. Some of the most common equipment used in the process includes pulping machines, bleaching equipment, refining equipment, and screening equipment.<\/p>\n\n\n\n<p><strong>Pulping Machines<\/strong><\/p>\n\n\n\n<p>Pulping machines are used to break down raw materials into pulp by grinding, refining, and separating the fibers. There are several types of pulping machines, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanical pulping machines: These machines use mechanical force to separate fibers, such as grinders and refiners.<\/li>\n\n\n\n<li>Chemical pulping machines: These machines use chemicals and heat to break down raw materials, such as digesters and batch digesters.<\/li>\n\n\n\n<li>Hybrid pulping machines: These machines use a combination of mechanical and chemical processes, such as thermomechanical pulping machines and chemi-thermomechanical pulping machines.<\/li>\n<\/ul>\n\n\n\n<p>Advantages of pulping machines:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High efficiency in breaking down raw materials<\/li>\n\n\n\n<li>Can produce a high yield of pulp<\/li>\n\n\n\n<li>Can be used with a variety of raw materials<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of pulping machines:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High energy consumption and cost<\/li>\n\n\n\n<li>May require a high use of chemicals and water<\/li>\n\n\n\n<li>Can lead to environmental concerns<\/li>\n<\/ul>\n\n\n\n<p><strong>Bleaching Equipment<\/strong><\/p>\n\n\n\n<p>Bleaching equipment is used to remove impurities and improve the brightness of pulp. There are several types of bleaching equipment, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chlorine-based bleaching equipment: These systems use chlorine gas or sodium hypochlorite to bleach the pulp.<\/li>\n\n\n\n<li>Oxygen-based bleaching equipment: These systems use hydrogen peroxide or sodium peroxide to bleach the pulp.<\/li>\n\n\n\n<li>Ozone-based bleaching equipment: These systems use ozone gas to bleach the pulp.<\/li>\n<\/ul>\n\n\n\n<p>Advantages of bleaching equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Can improve the brightness and quality of the pulp<\/li>\n\n\n\n<li>Can be used with a variety of raw materials<\/li>\n\n\n\n<li>Can reduce environmental concerns with the use of alternative bleaching methods<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of bleaching equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High energy consumption and cost<\/li>\n\n\n\n<li>Can have a negative environmental impact, particularly with the use of chlorine-based bleaching methods<\/li>\n<\/ul>\n\n\n\n<p><strong>Refining Equipment<\/strong><\/p>\n\n\n\n<p>Refining equipment is used to further refine the pulp and improve its strength and durability. There are several types of refining equipment, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Double disc refiners: These machines use two rotating discs to grind the pulp and separate the fibers.<\/li>\n\n\n\n<li>Conical refiners: These machines use a conical rotor and stator to grind and refine the pulp.<\/li>\n\n\n\n<li>Jordan refiners: These machines use a series of conical plates to grind and refine the pulp.<\/li>\n<\/ul>\n\n\n\n<p>Advantages of refining equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Can improve the strength and durability of the pulp<\/li>\n\n\n\n<li>Can be used with a variety of raw materials<\/li>\n\n\n\n<li>Can improve the quality of the final product<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of refining equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High energy consumption and cost<\/li>\n\n\n\n<li>Can lead to higher wear and tear on the equipment<\/li>\n<\/ul>\n\n\n\n<p><strong>Screening Equipment<\/strong><\/p>\n\n\n\n<p>Screening equipment is used to separate the pulp into different grades and sizes. There are several types of screening equipment, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pressure screens: These screens use pressure to separate the pulp into different grades.<\/li>\n\n\n\n<li>Vibrating screens: These screens use vibration to separate the pulp into different sizes.<\/li>\n\n\n\n<li>Centrifugal screens: These screens use centrifugal force to separate the pulp into different grades.<\/li>\n<\/ul>\n\n\n\n<p>Advantages of screening equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Can produce a variety of pulp grades and sizes<\/li>\n\n\n\n<li>Can improve the quality of the final product<\/li>\n\n\n\n<li>Can be used with a variety of raw materials<\/li>\n<\/ul>\n\n\n\n<p>Disadvantages of screening equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>May require multiple stages of screening to achieve the desired results<\/li>\n\n\n\n<li>Can be costly to maintain and operate.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Process of Paper Pulp Making<\/h2>\n\n\n\n<p>The process of paper pulp making involves several steps, including preparation of raw materials, pulping, screening, cleaning, bleaching, refining, and papermaking.<\/p>\n\n\n\n<p><strong>Preparation of Raw Materials:<\/strong> The first step in paper pulp making is to prepare the raw materials. The raw materials may be wood, recycled paper, or non-wood fibers. The raw materials are sorted and cleaned to remove any unwanted materials like dirt, stones, or metal.<\/p>\n\n\n\n<p><strong>Soaking:<\/strong> The sorted and cleaned raw materials are then soaked in water to make them soft and pliable. This process is called soaking, and it helps to break down the fibers and make them easier to pulp.<\/p>\n\n\n\n<p><strong>Pulping: <\/strong>After soaking, the raw materials are put through a pulping machine, which grinds and breaks down the fibers. There are several types of pulping processes, including mechanical, chemical, semi-chemical, and non-wood pulping. The choice of pulping process depends on the type of raw material being used and the quality of pulp desired.<\/p>\n\n\n\n<p><strong>Screening and Cleaning: <\/strong>Once the raw materials are pulped, the resulting pulp is screened to remove any impurities and to separate the fibers according to size. The pulp is then cleaned to remove any remaining impurities.<\/p>\n\n\n\n<p><strong>Bleaching:<\/strong> The pulp is then bleached to remove any residual color or impurities. There are several types of bleaching processes, including elemental chlorine-free (ECF), chlorine-free (CF), and totally chlorine-free (TCF) processes. The choice of bleaching process depends on the quality of pulp desired and environmental considerations.<\/p>\n\n\n\n<p><strong>Refining: <\/strong>The pulp is then refined to improve its strength and uniformity. Refining can be done mechanically or chemically, depending on the type of pulp and the desired quality.<\/p>\n\n\n\n<p><strong>Papermaking: <\/strong>The refined pulp is then used to make paper. There are several types of papermaking processes, including Fourdrinier, cylinder, and twin-wire processes. The choice of papermaking process depends on the type of paper being made and the desired quality.<\/p>\n\n\n\n<p>Factors affecting the paper pulp making process include the type of raw material used, the pulping process used, the refining process used, and the papermaking process used. Other factors that can affect the process include the pH of the pulp, the temperature of the process, and the type of chemicals used in the process.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Safety Measures in Paper Pulp Making<\/h2>\n\n\n\n<p>Paper pulp making can involve several hazards, including exposure to chemicals, hot surfaces, and moving machinery. Therefore, it is important to take safety measures to prevent accidents. Some of the safety measures that can be taken include:<\/p>\n\n\n\n<p>\u2022 Proper training of workers to operate machinery and handle chemicals safely.<\/p>\n\n\n\n<p>\u2022 Regular maintenance and inspection of equipment to prevent malfunctions.<\/p>\n\n\n\n<p>\u2022 Proper ventilation and exhaust systems to remove harmful gases and dust.<\/p>\n\n\n\n<p>\u2022 Use of personal protective equipment (PPE), including goggles, gloves, masks, and aprons.<\/p>\n\n\n\n<p>\u2022 Strict adherence to safety protocols, including lockout\/tag-out procedures and emergency response plans.<\/p>\n\n\n\n<p>\u2022 Regular monitoring of air quality and noise levels to ensure compliance with safety regulations.<\/p>\n\n\n\n<p>\u2022 First aid kits and trained personnel should be available on-site in case of emergencies.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Environmental Concerns in Paper Pulp Making<\/h2>\n\n\n\n<p>Paper pulp making can have a significant environmental impact, including deforestation, water pollution, and greenhouse gas emissions. Therefore, it is essential to follow best practices and regulations to minimize environmental impact. Some of the environmental concerns in paper pulp making include:<\/p>\n\n\n\n<p>\u2022 Deforestation: Wood is a primary source of raw material for paper pulp making. Therefore, it is important to use sustainable forestry practices and promote reforestation to reduce the impact of deforestation.<\/p>\n\n\n\n<p>\u2022 Water pollution: The paper pulp making process can generate wastewater containing harmful chemicals. Therefore, it is essential to use effective treatment methods to remove pollutants before discharging wastewater into the environment.<\/p>\n\n\n\n<p>\u2022 Greenhouse gas emissions: The paper pulp making process can generate significant greenhouse gas emissions. Therefore, it is important to reduce energy consumption and use renewable energy sources to minimize emissions.<\/p>\n\n\n\n<p>Regulations and laws governing paper pulp making vary by country, but most countries have strict regulations in place to protect the environment. Best practices for reducing environmental impact include:<\/p>\n\n\n\n<p>\u2022 Using sustainable forestry practices to minimize the impact of deforestation.<\/p>\n\n\n\n<p>\u2022 Using renewable energy sources to reduce greenhouse gas emissions.<\/p>\n\n\n\n<p>\u2022 Using closed-loop systems to recycle and reuse water and chemicals.<\/p>\n\n\n\n<p>\u2022 Reducing waste through recycling and minimizing the use of harmful chemicals.<\/p>\n\n\n\n<p>Recycling and reusing paper pulp can also help reduce environmental impact. Recycled paper can be used to produce new paper products, reducing the need for virgin pulp and minimizing waste.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\">Conclusion:<\/h2>\n\n\n\n<p>In conclusion, paper pulp making is a complex process that involves several steps, including preparation of raw materials, pulping, refining, and papermaking. The choice of raw materials, pulping process, refining process, and papermaking process can affect the quality and environmental impact of the final product. Safety measures and environmental concerns should be considered in every step of the process to prevent accidents and minimize environmental impact. The future of paper pulp making lies in using sustainable practices, promoting recycling, and using renewable energy sources to reduce environmental impact.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Paper pulp is a soft, fibrous material made from wood, paper products, or other natural fibers that are broken down into small pieces and processed to remove impurities. It is the raw material used to produce various paper products such as newspaper, cardboard, tissue paper, and printing paper. The pulp-making process involves several steps, including preparation, cooking, refining, and bleaching. Paper pulp is essential to the paper manufacturing industry as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7955,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"narrow-container","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"class_list":["post-7954","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How To Make Paper Pulp: Techniques, Equipment, &amp; 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