The moisture-proof work of cartons should be done well, otherwise the service life and quality will be affected. Therefore, we still need to pay attention to it. It is very useful to master effective methods of moistureproof.
One method can use paraffin wax, microcrystalline wax, polyethylene wax, beeswax, white wax, carnauba wax, montane wax and other animal and plant waxes. After emulsification, they can be applied on paperboard to prevent moisture and water. Because of the low cost, it is the most widely used method at present.
The other one is made by reducing chromium trioxide in propanol hydrochloric acid solution and combining with stearic acid, which has the characteristics of anti mildew and antifouling. At present, there are different formulations of water drawing agents on the market. If the resin, starch or glue moisture-proof agent is added into the pulp to make moisture-proof paper, the production of the paper box is naturally the most convenient. Although it needs to increase the cost of some base paper, the carton moisture-proof skills, but the total cost is still cost-effective.
If the design scheme of carton engineering is unreasonable and does not proceed from the actual needs of the project and blindly pursue the symbolic effect of carton engineering, it will cause waste of investment and reduce the practical rate of buildings.
In addition, project decision-making is the basis of carton construction, which plays a decisive role in the project cost. If the project decision is not made well, the losses caused to the carton project can not be estimated.
There are three factors that affect the decision-making of cartons
First, we failed to pay attention to the design work, and the carton construction unit was not careful enough in the design work and did not pay attention to the quota design;
Second, the cost personnel do not understand the actual situation of the carton project, and they are not comprehensive;
Third, investors only pay attention to whether the price of the bidding unit is the lowest in the bidding process, and do not strictly review the carton construction units and suppliers, resulting in a lot of unnecessary costs in the construction of cartons.