Papers and Boards
Papers and Boards
Papers
- Papers are made from natural fibres, most commonly from wood pulp, which are processed into a slurry and then dried to form a flexible sheet.
- They are characterised by their light weight, flexibility, and the ability to be printed upon.
- Newsprint is a cheap, low-quality paper used primarily for newspaper production due to its absorbency and affordability.
- Cartridge paper is a high-quality paper, heavier than newsprint and often used for drawing or painting as it can withstand erasing and heavy shading.
- Layout paper is lightweight and semi-transparent, suitable for initial ideas and sketching.
- Card and Board fall under this category too, but they are thicker and more rigid.
Boards
- Boards are similar to paper but much thicker and stiffer. They are used for applications that require more strength and rigidity.
- Corrugated board is commonly used for packaging applications due to its cushioning properties and resistance to impact and compression.
- Solid whiteboard is used for high quality packaging and book covers due to its smooth finish and printability.
- Duplex board has a different finish on each side and is often used for food packaging due to its resistance to moisture.
- Foamboard has a foam core sandwiched between two paper layers, making it lightweight and useful for model making.
Working with Papers and Boards
- Paper and board can undergo several converting processes to form final products including cutting, folding, creasing, gluing, and laminating.
- Special techniques, like die cutting, embossing, and UV varnishing, can at times be used to alter the physical properties of paper and boards.
- Printing methods, including screen printing, digital printing, and lithographic printing, are all used to add design elements on papers and boards.
- When working with papers and boards, safety is less of a concern compared to working with metals or woods, but care should be taken to avoid cuts and paper-related injuries.
Environmental Considerations
- Both paper and board are primarily created from trees, a renewable resource, but their manufacture can involve substantial energy consumption and waste generation.
- Many types of paper and board are recyclable, leading to less waste. However, the recycling process itself can consume significant energy and water.
- Increasingly, recycled paper and boards, as well as options including sustainable forest paper and board, are being used to lower environmental impact.