Corrugated Box

Corrugated Box

Short Description:

Most items at supermarket, discount store or shopping mall were safely delivered in boxes made of corrugated cardboard, and many items are displayed in the same boxes, which were manufactured in order to they could be opened and used for this purpose.


Product Detail

Corrugated Box
Product Details Usage Bedding or orther.
Feature Recyclable
Material Corrugated paper with printing and lamination
Flute /gsm Customized
Size According to customer's request
Color Customized
Printing & logo Based on request
Weight Based on size & thickness
Sample Details Sample time 7 working days
Samples fee If samples in stock, samples will be free
If samples need to be customed, there will be samples fee
Freight charge By your express account. DHL, Fedex, UPS, TNT... everyone is okay.
Purchase info. MOQ 1,000 pcs
Lead time The specific lead time depends on the quantity
Payment terms Paypal, 100% T/T, 30% deposit 70% balance against copy of B/L
FOB Port Qingdao
Factory info. Factory Location Qingdao, China
Factory experience From 1990

Most items at supermarket, discount store or shopping mall were safely delivered in boxes made of corrugated cardboard, and many items are displayed in the same boxes, which were manufactured in order to they could be opened and used for this purpose. Other items may arrive in their own corrugated box or other boxes. Because corrugated cardboard is such a versatile packaging material, millions of tons are used for protecting and displaying products each year. During 1992, more than 25 million tons of corrugated cardboard were produced in the United States. Another 6 million tons of other cardboard or paperboard were also produced for using in folding cartons.

Corrugated cardboard is a stiff, strong, and light-weight material made up of three layers of brown kraft paper. In 1884, Swedish chemist, Carl F. Dahl, developed a process for pulping wood chips into a strong paper that resists tearing, splitting, and bursting. He named it the kraft process because it produces a strong paper that resists tearing, splitting, and bursting.
Rolls of kraft paper are transported to a corrugating factory from the paper mill. At the plant, layers of kraft paper are crimped and glued to form corrugated cardboard, then which will be cut, printed, folded, final glued make into boxes. At the beginning of this process, kraft rolls from the paper mill are loaded into a huge machine called a corrugator. A typical corrugator is as long as a football field—300 feet (91.44 meters). Some rolls of kraft paper are used as the corrugating medium, and others are used as liners, the layers of kraft paper glued on each side of the medium. After the corrugator has heated, glued and pressed the kraft paper to form corrugated cardboard, the continuous sheet of cardboard is cut into wide blank box that then is sent to other machines for printing, cutting, and gluing. Finally, batches of finished boxes are banded together for shipping to the food processor, toy maker, automobile parts distributor, or any of the thousands of businesses that depend on corrugated cardboard packaging.
Kraft paper has been manufactured since 1906. Since then, pulp processing, paper making, and corrugating operations have been developed to a high state of efficiency and productivity. Today, in the corrugated cardboard industry, designers are creating innovative containers that require four-color printing and complex die-cutting. These innovative containers are designed with sophisticated software such as computer-aided design (CAD) programs, allowing a packaging designer to brainstorm different package designs before manufacturing begins. A designer using a CAD program can call up and modify different designs that have been stored in a computer design library. Thus, existing packages can generate new designs. Many retail stores use such light, strong, and colorful containers directly, as point-of-purchase displays.

Quality control begins with the suppliers of the kraft paper used to make corrugated cardboard. Kraft paper must be smooth and strong. After the paper passes through the corrugator and is made into box blanks, individual blanks are pulled from a stack and tested. The Cobb test measures moisture in the liner and medium. Glue strength, bursting strength, compression, and highly accurate dimensional tests determine the quality of the manufacturing process. A warp test determines the flatness of the box blank, insuring that each blank will travel smoothly through the flexo machines. As skilled workers run batches of box blanks through the flexo machines, individual boxes are pulled and inspected. Trimming, cutting, and scoring must be correct. No damage to the cardboard is allowed. Also, the different layers of colored ink used in color printing must be perfectly aligned.

In the future, corrugated containers will be manufactured using kraft paper produced from recycled packaging rather than trees. Recycling and other environmentally friendly processes will continue to grow in importance in the future of corrugated cardboard. Today, inks based on soybean oil and biodegradable waxes and other coatings are beginning to be used in container manufacturing. Leading packaging companies are already operating paper mills that make fresh, clean kraft paper by de-inking and pulping used containers.


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