Packaging carton is a common packaging type in paper products packaging and printing;
The materials used are corrugated paper, paperboard, gray floor, white card and special art paper;
Some use paperboard or multi-layer light embossed board combined with special paper to obtain a more solid support structure.
There are also many products suitable for carton packaging, such as common drugs, food, cosmetics, household appliances, hardware, glassware, ceramics, electronic products, etc.
In terms of structure design, cartons should be changed according to the packaging requirements of different products.
The same is the drug packaging, tablets and bottled water packaging structure requirements are very different, bottled water needs high strength and extrusion resistant cardboard combination, firm structure to form a protective layer.
In terms of structure, the inside and outside of the bottle are usually combined, and the inside of the bottle is usually fixed. The size of the outer package has a lot to do with the size of the bottle.
Some packaging cartons are disposable, such as household tissue boxes, which need not be very firm, but need to choose paper products that meet the requirements of food hygiene packaging to make boxes, and the cost is also very economical.
Cosmetic packaging box is the representative of the material and technology. The hard box packaging uses high-grade white card, which has a fixed structure and size;
In terms of printing technology, many manufacturers choose more reliable anti-counterfeiting printing, cold foil technology, etc.; therefore, the printing materials and printing technology with bright colors and high difficulty of anti duplication technology are pursued by cosmetics manufacturers.
Cartons also use more complex structures and a variety of materials, such as colorful gift packaging, high-end tea packaging, and even the once popular mid autumn cake packaging box. Some of the packaging is to protect the product more safely and highlight its value and luxury, while others are completely for packaging, which is not in line with the practical functions of packaging described below.
In terms of the materials used for cartons, cardboard is the main force. Generally speaking, the paper whose weight is more than 200GSM or thickness is more than 0.3mm is called paperboard.
The raw material of paperboard is basically the same as paper. Because of its high strength and easy folding, paperboard has become the main production paper of packaging carton. There are many kinds of paperboard, the thickness is generally between 0.3 ~ 1.1 mm.
Corrugated board: it is mainly composed of two parallel flat sheets as outer paper and inner paper, with corrugated core paper processed by corrugated roller sandwiched in the middle, and each paper sheet is bonded with corrugated paper coated with adhesive. Corrugated board is mainly used for making outer packing boxes to protect commodities in circulation. There are also thin corrugated paper that can be used as inner packaging of commodity cardboard to reinforce and protect commodities. There are many kinds of corrugated paper, including single-sided, double-sided, double-layer and multi-layer.
White paper board, made of chemical pulp and pulp, including ordinary white paper board, white paper board of kraft pulp, etc. There is also a completely made of chemical pulp made of white cardboard, also known as high-grade whiteboard.
Yellow board refers to the low-grade cardboard made from straw by lime process, which is mainly used as the box core which is pasted in the carton and plays a fixed role.
Kraft board: made from kraft pulp. One side of the paper paper is called single-sided kraft board, two sides of the paper board called double-sided kraft board. The main function of corrugated paper is called bovine leather box board, its strength is much higher than that of ordinary paper board. In addition, it can be combined with water resistant resin to make water resistant kraft board, which is mainly used in the beverage packaging box.
Composite processing board: refers to the composite processing of composite aluminum foil, polyethylene, oil proof paper, wax and other materials. It makes up for the shortage of ordinary cardboard, and makes the packaging box have many new functions such as oil proof, water-proof and fresh keeping.