Blue Pacific Joint Stock Company

3-5-7-layer cartons are an indispensable product in the packaging and transportation industry, helping goods and products not be affected by external influences during transportation to different locations. Let's learn about carton products produced at Pacific Green Joint Stock Company.

A carton is a type of paper box, made up of cardboard sheets consisting of many layers of paper joined together by a layer of glue. Cardboard paper is produced from wood with fibrous properties and has 3-dimensional space. Thanks to the effect of hydrogen bonding force without adhesive, these wood fibers are bonded together very firmly.

The main function is to protect goods during transportation and storage. Carton boxes help individual users and businesses both ensure goods are always safe, undamaged, and promote brand products very effectively. Depending on the purpose of use, the paper layer will create the final product which is carton boxes and carton boxes with different corrugated layers.

Carton boxes are made from paper, so it helps users easily write goods information on the box, avoid confusion and identify goods more easily. Diverse sizes and good thickness make it easy to store and make suitable choices.

Structure of 3-layer carton

3-layer carton has a fairly simple structure, including an outer layer, middle layer and bottom layer. This contributes to ensuring the safety of items in the box during transportation.

Structure of 5-layer carton

The 5-layer carton is made up of 2 layers of sine wave paper and 3 alternating layers of flat paper, creating a tight combination, helping users contain goods, ensuring safety during transportation. , carrying protected goods.

However, if you need to transport heavy goods, you can refer to the 7-layer carton line, because this type of box is larger and more sturdy in preserving goods.

Structure of 7-layer carton

7-layer carton is a type of carton with a very special and modern structure of inner and outer layers. It is the type of carton that people choose and use widely on the market. 7-layer cartons are most used in the packaging and transportation of fragile items, electronic items or machinery materials with advantages such as: heavy duty, sturdy installation. High, good bearing capacity.

WAVE PAPER IN CARTON PRODUCTION

Common types of corrugated boxes for producing carton boxes are B corrugated, C corrugated, E corrugated and B/C corrugated. The quality and structure of each type of carton is specifically designed depending on the application. The covering paper can be white, brown or yellow paper.

For example, a 3-layer carton box includes the following main layers:

– Surface layer: the outermost layer of paper, white, yellow or brown, usually flat, beautiful paper.

– Middle layer: the paper layer is made up of layers of paper waves and grooves, glued to the surface and bottom layers to act as a cushioning layer for the carton, this is also called the corrugated layer of the carton, depending on the purpose of use. Use it to choose the right corrugated paper for the product.

– Bottom layer: can be a normal layer of paper or a layer of hard paper to support force.

The quality and texture of each type of carton is specially designed depending on the application. The paper covering can be white, brown or yellow paper.

There are 3 main types of waves that create the grooves and curves of cardboard. Here are the names of those 4 types: B wave, C wave and E wave.

- B wave: Corrugated paper height 2.5 mm - paper sheets using B wave can withstand high penetration force.

- C wave: Height from 3.5 - 4.5mm - paper sheets using C wave have good surface dispersion force.

- Corrugated E: Paper corrugated height 1.5 mm - often used for boxes containing light objects.

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