Heavy duty carton box is one of the cartons, which is more resistant to paper and has stronger pressure-bearing capacity than ordinary cartons. Heavy duty carton is a widely used packaging product, according to the different materials used can be divided into corrugated boxes, single-layer cardboard boxes, with various specifications and models.

Cartons commonly used are three-layer, five-layer, seven-layer, each layer is divided into lining paper, corrugated paper, core paper, top paper, lining and top paper have tea board paper, kraft paper, core paper with corrugated paper, a variety of paper color and feel are different, different manufacturers produce different paper (color, feel).

Cartons in production life for a wide range of packaging products, cartons are divided into ordinary cartons and heavy cartons, ordinary cartons are usually made of three layers of paper processing, from the outside of the face paper, the middle of the corrugated paper, and the inner layer of the box board paper three layers of processing, like our life some milk boxes, instant noodles boxes are such ordinary cartons. Ordinary carton its weight-bearing capacity is relatively small.

What is the difference in the process of heavy duty carton box nailing and gluing?

As we all know, the production process of heavy duty carton box includes several major processes such as printing, forming, gluing and encapsulation, etc. In the manufacturing process, box adhesion belongs to the tail and is an important part of it.

Heavy duty carton box bonding is mainly divided into nail boxes and glued boxes, but do you know the difference between nail boxes and glued boxes? See a lot of users say:Not much difference, sticky box is just a good-looking appearance, in fact, almost. Some netizens say:nail boxes are stronger, and the items stored are heavier.

Here, let’s talk about it. In fact, the nail box is a nail between the two sides of the box to each other, just like the stapler seen in everyday life. But the difference is that it is larger than the staples of a stapler, and double staples. Heavy duty carton box of stapled boxes, there seems to be nothing to say, let’s take a look at the stapled boxes.

Binding box is divided into manual binding, semi-automatic binding, fully automatic binding.

There are two bonding ways: adhesive bonding and tape bonding. Adhesive bonding is a semi-automatic way to complete the slotting and crimping process of cardboard transported to the gluing machine, and then the cardboard in the role of the guide wheel and pressure wheel, after bending, splicing, closing and a series of actions to be glued, tape bonding is a fully automatic bonding process, in which the cardboard is fed, the tape is cut and taped, and the interface between the heavy carton slot and the board surface is bonded link.

Manual bonding is a low-standard bonding process with low requirements for adhesive, adhesive dosage, bonding time and bonding strength. Another advantage of semi-automatic gluing and bonding is that the start-up time is short and heavy cartons with irregular crimping can be adjusted and fed into the machine for bonding. Although fully automatic bonding can free your hands, the disadvantage is that it is easy to cause bonding deviation and stripping, as well as bad products and bad boxes caused by malfunctions due to excessive speed.

Five factors that affect the compressive strength of heavy duty carton box:

Heavy-duty carton compressive strength is an important information quality management indicator required by many commodity packaging designs. Testing, the heavy-duty carton can be placed between two pressure plate mechanism, pressurized to the pressure of the carton for collapse, that is, the strength of the compressive capacity of heavy-duty cartons.

1) Raw material quality

Raw paper is the decisive factor in determining the compressive strength of a carton, as can be seen from the formula. However, the influence of other conditions such as adhesive dosage, impregnation, coating and lamination processing during the production of corrugated board should not be ignored.

2) Moisture

Cartons made of corrugated board materials with excessive water content requirements, or long-term funds stored in a humid environment, will reduce their compressive capacity strength. Fiber is a water-absorbent agent. In the rainy season and when the air humidity is high, the water balance between the water in the cardboard and the atmospheric environment is very important.

3)Box type

Box type refers to the type of box and the size of many boxes of the same type for the ratio, which has a significant impact on the compressive strength. Some cartons use double-layer corrugated cardboard, its compressive strength is significantly higher than the same size of single-layer cartons. Under the same economic conditions, the higher the box can be, the less stable, the lower the strength of compressive capacity.

4) Printing and opening

Printing will reduce the compressive strength of heavy cartons. Opening holes on the surface of the box or playing carry handle holes on the side of the box will reduce the strength of the carton, especially in the case of a large opening area and biased to one side.

5) processing deviation

The production of heavy-duty carton production process without improper crimping, slotting too deep, combined with poor will also reduce the strength of a box’s compressive capacity.