Corrugated board adhesive awareness misunderstanding and enhancer selection

The adhesives for the production of corrugated cardboard are widely used worldwide. Adhesives are the result of a perfect combination of raw materials, but the price is very low. Nowadays, the ever-changing production equipment is very different from the improvement of adhesive products. The adhesives that have been used for more than 50 years obviously have not been adapted to such high-speed machines. These can be seen from the average production speed. Even with the use of low-weight paper, when the binder is used for production, the speed of the machine runs much behind that of the machine design.

Misunderstanding of adhesives

Of course, the properties of the adhesive may be improved by improving some of the technical parameters such as viscosity, gelatinization temperature, and solids content.

There is now a misunderstanding that the lower the solids content of the binder, the lower the cost of producing cardboard, but this is the wrong idea. If the solid content is reduced, it means that the water content is increased, so more water will need to evaporate; at the same time, the machine dryer will evaporate more water, and the result will only be to reduce the speed of the machine, so the machine speed The cost of the reduction will be much more expensive than increasing the solids content, so it would be wise to increase the solids content of the binder. However, even if the solid content of the binder is limited, it cannot be increased blindly. Generally, the solid content should be about 20 to 24%.

In the factory, we often see that many manufacturers produce very large amount of glue on the cardboard. People mistakenly believe that the larger the amount of glue, the better the bonding effect will be. This is not the case. Because we only need to use the amount needed to bond paperboard, the more the amount, the more water, the machine speed will be reduced.

Obviously, if the amount of glue is reduced, the moisture will be less and the speed of the machine will increase. It sounds very convenient. To increase the speed of the machine, we need to increase the initial adhesion of the adhesive. Now is the time to use some enhancer to achieve this effect.

The lower the solids content of the binder does not mean that the cost of producing the cardboard will be lower. The larger the amount of glue, the better the binding effect will not be.

Enhancer selection

There are many kinds of strengthening agents in the world today, the vast majority of which are chemically synthesized, while others are environmentally-friendly, pure green products such as those produced by Uninet of Argentina.

Unitech produced and developed a series of adhesive strengthening agents, among which the CF, CF2 green environment-friendly products account for a large share of the world market for corrugated board adhesive strength agents. CF and CF2 are all used to improve the initial adhesion of adhesives. It increases the speed of the machine, quick drying, and reduces the amount of starch, which means that the cost per square meter of board is reduced. These two products do not have the ability to magic, on the contrary, it is only a natural product produced on demand, but it can solve many problems.

China is an indispensable and important part of the world market for corrugated board. The two products of Unitech are widely recognized in China. Some corrugated box factories are producing layers 3, 5, 7 and UPS or In the case of double-arched paperboard, ie 4,6-layer paperboard, Uninet's strengthening agent can reduce the amount of starch by nearly 35% and increase the compressive strength by about 20%. At the same time, according to the type of paper and g With different amounts, the use of this type of strengthening agent can increase the speed of the machine by 20%.

The strengthening agent is not a magical ability. Instead, it is a natural product produced according to needs, but it can solve many problems.

Reasonable use of adhesives can achieve higher productivity. This means that the same squared board is produced, which takes less time, less energy consumption, and less other human and material resources.

(Argentine Uninet Group Corporation Zhejiang Uninet Trading Co., Ltd.)

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