1.14 Paper and Board Forming Processes Flashcards
(9 cards)
What are the ways that paper and board can be shaped into different products such as packaging?
- die cutting
- laser cutting
- creasing
- bending
What is die cutting and what materials is it commonly used for?
Die cutting is a process that uses a sharp steel blade (die) to cut or crease sheet materials like carton board, corrugated card, or laminated paper. It is especially used in the manufacture of packaging nets, folders, greeting cards, and labels for mass production. The die can include straight or curved blades for cutting, and blunt rules for creasing.
Why is die cutting ideal for commercial packaging?
Die cutting provides speed, accuracy, and repeatability. It allows complex shapes and precise fold lines to be produced in large volumes, which is essential for packaging that requires consistent assembly and professional appearance.
What is laser cutting and what materials is it suitable for?
Laser cutting is used to cut or engrave paper and thin boards (e.g. card, mount board, grey board). It’s especially useful for prototypes, intricate packaging designs, and decorative elements due to its high precision and ability to create fine details without physical contact.
What are the advantages and disadvantages of laser cutting?
Advantages: High precision, clean edges, no physical contact (reducing wear), easy prototyping.
Disadvantages: Slower than die cutting in large-scale production, material burning or melting can occur, high initial machine cost.
What is creasing and why is it important in product design?
Creasing creates a controlled fold line in paper and board materials, allowing them to be folded neatly without cracking. It’s essential in packaging to produce sharp, accurate folds along tabs, flaps, and box edges.
What problems can occur if creasing is not used on board?
Without creasing, folding can cause fibres to crack or tear, especially on laminated or thick boards. This affects the appearance and function of packaging, making it less durable and professional.
What does bending mean in the context of paper and board materials?
Bending is the process of folding paper or board materials along a line — often after creasing — to create three-dimensional forms like boxes, cartons, or display items. Unlike plastic or metal bending, this is done without heating and relies on the material’s flexibility and grain direction.
What factors affect successful bending of board materials?
Board thickness, grain direction, whether the board is laminated, and whether it was pre-creased. Laminated or coated boards are more likely to crack without pre-creasing.
