What paper is corrugated paper

Corrugated paper, also known as kraft paper and paper cover, is a common material for paper packaging boxes. It is lighter and harder than wooden cases, and the size is easy to cut, which is used to protect other packaged products from being damaged. Corrugated paper can print patterns and characters of different colors or write characters and symbols outside, which is relatively cheap and avoids water, humidity, mildew, water and hand hooks. , sometimes used as handicraft materials.

Basic use

Type A corrugated paper and type B corrugated paper are generally used for transport outer packing boxes, and type B corrugated paper is generally used for beer boxes. E-type corrugated cardboard is mostly used as a single packing box, which has certain aesthetic requirements and moderate content weight. F-type corrugated board and G-type corrugated board, collectively referred to as micro-corrugated board, are extremely thin corrugated boards, which are used as disposable packaging containers for foods such as hamburgers and cream-filled cakes, or as packaging for microelectronic products such as digital cameras, portable stereos and refrigerated goods.

paperboard

corrugated paper

Corrugated board began at the end of 18, and its application increased significantly at the beginning of 19 because of its light weight, low price, wide use, simple manufacture and recycling. By the beginning of the 20th century, it had been widely promoted, popularized and applied to the packaging of various commodities. Because the packaging container made of corrugated board has its unique performance and advantages in beautifying and protecting the internal goods, it has achieved great success in the competition with various packaging materials. It has become one of the main materials for making packaging containers, and it has a long history of use and has developed to this day.

Corrugated board is made of face paper, inner paper, core paper and corrugated paper by bonding. According to the demand of commodity packaging, corrugated board can be processed into single-sided corrugated board, three-layer corrugated board, five-layer, seven-layer and eleven-layer corrugated board. Single-sided corrugated cardboard is generally used as a protective lining for commodity packaging or to make light trucks and cushions to protect commodities from vibration or collision during storage and transportation. Three-layer and five-layer corrugated boards are often used to make corrugated boxes. Many goods are simply and beautifully packaged with three or five layers of corrugated cardboard, and colored graphics and pictures are printed on the surface of corrugated boxes or corrugated boxes, which not only protects the internal goods, but also publicizes and beautifies the internal goods. Many corrugated boxes or corrugated boxes made of three-layer or five-layer corrugated boards have been directly placed on the sales counter and become sales packaging. Seven-layer or eleven-layer corrugated cardboard is mainly used to make packaging boxes for electromechanical, flue-cured tobacco, furniture, motorcycles and large household appliances. In some commodities, corrugated cardboard can be combined into inner and outer boxes, which is convenient for manufacturing, storage and transportation of goods. With the needs of environmental protection and the requirements of relevant national policies, the commodity packaging made of this kind of corrugated cardboard has the trend of gradually replacing wooden box packaging.

Carton

Corrugated box is made of corrugated board, which is the most widely used paper container packaging and widely used in transportation packaging. Corrugated box is widely used because it has many unique advantages: ① Good cushioning performance. ② Lightweight and firm. ③ The overall size is small. ④ Sufficient raw materials and low cost. ⑤ It is convenient for automatic production. ⑥ The packaging operation cost is low. All landowners can pack all kinds of articles. 8 Less metal consumption. Pet-name ruby good printing performance. Attending can be recycled.

Composite coating

Corrugated composite board is a new material with relatively low cost, which saves resources and protects the ecological environment after the introduction of honeycomb paperboard in the United States and Europe. From automatic production line equipment to finished products, it is a new generation of high-tech achievements with complete intellectual property rights in China. The finished product has the advantages of light weight, high strength, no deformation, good rigidity, strong cushioning performance and good sound and heat insulation effect. After proper treatment, it can be flame retardant, moisture-proof and waterproof, and the requirements for raw materials are lower than those of honeycomb paperboard. Recyclable waste paper and old corrugated boxes are raw materials for production, so the raw materials are extensive and rich. The finished product can be recycled after use, which meets the environmental protection requirements of resource recycling and has a very broad application prospect. Corrugated composite board can be made into packing boxes and mats of various precision instruments, electromechanical equipment, household appliances and ceramic products, and can also be made into trays, cushions and aviation turnover boxes of various specifications; In terms of building materials, corrugated composite board can be used to make light partition walls, sound insulation boards, heat insulation boards, furniture and export disposable beach dining tables, and can also be used to make disposable sanitary aseptic paper coffins for cremation.

Corrugated paper is pressed into corrugated shape in the production process. After being made into corrugated board, it will improve the elasticity and flat compressive strength of the board and affect the vertical compressive strength and other properties. Corrugated paper should be flat and uniform in thickness, and there should be no paper defects such as folds, cracks and holes, otherwise it will increase the breakage in the production process and affect the product quality.