Among the numerous packaging materials, paper and cardboard have a long history and occupy a considerable proportion in the packaging industry. The reason why paper material has such a great development potential is that it has incomparable performance compared with other materials and can meet the requirements of various commodities. For example, paper and cardboard are recyclable, printing and branding friendly, great in protecting products, and good for mass production. With the development of society and the prosperity of new products, the need for innovative paper packaging structures constantly grows.
The commonly used paper materials for cardboard boxes include whiteboard paper, yellow board paper, and colored paper. Coated whiteboard paper is used most frequently in commodity packaging.
In the selection of materials, the first consideration should be given to the form of product-to-be-packed. Are they moist goods, wet goods, liquid goods, or solid goods? Are they high-fat goods or frozen goods? We must pay attention to quality protection, safety, operation, convenience, transportation conditions, and so on.
Paper boxes must be designed to be easy to produce, easy to store, easy to display and sell, easy to carry, easy to use, and easy to transport.
Protection is the key to the paper structure design. According to the different characteristics of different products, the design should be considered separately from the lining, arrangement, shape, and other structures, especially for products with easy damage and special appearance.
It is very important to update and change the appearance of the paper container modeling structure, which can give people a sense of novelty and beauty, and stimulate consumers’ desire to buy.
Being scientific and reasonable are the basic principles in design. Scientific and reasonable paper containers require less material and provide large capacity, strong resistance, and full function with a lighter weight at low costs.
Folding cartons and fixed cartons are the two most commonly used in carton packaging.
In terms of box types, folding cartons are usually divided into three categories: cylinder type, dish-shaped type, and other types with special structures. In terms of box structures, folding cartons come with a plug or lock type, paste type, and assembly type.
Fixed cartons include telescopic cartons, mounted cartons, padded cover cartons, odd-shaped cartons, drawer cartons, shoulder-mounted cartons, hinged cartons, tilting cartons, percussive cartons, in-box cartons, special product cartons, latticed cartons, cartons with inner partition, etc.
Cylindrical box: a folded paper box with high shape, side bonding, and open ends.
(B) Dish-shaped boxes: a box with a lower modeling facade like a dish.
(C) Other types with special structures: different from cylinder types and dish-shaped types.