Kraft paper bags are packaging containers made of composite materials or pure kraft paper.Non-toxic, tasteless and pollution-free,it is suitable for chemical raw materials, food, pharmaceutical additives, building materials, supermarket shopping, clothing, etc,which is one of the most popular environmental protection packaging materials in the world.
Because of a completely different mechanism than ordinary steam heating and drying,Microwave drying equipment for kraft paper bags produced by Leader Microwave Equipment Company has reduced the cost,energy consumption and production cost.And it greatly increased production, also has a very good effect in environmental protection.
Advantages of microwave composite kraft paper bag drying equipment:
1.Microwave Sterilization drying machine of kraft paper bag has bactericidal effect,which can improve the anti-mildew ability of paper bags and extend the service life effectively.
2.The paper bag treated by microwave kraft paper bag drying sterilizer is wear-resisting and folding resistant,tough and durable,smooth,beautiful and moisture-proof.
3.Kraft paper bag microwave drying machine has high thermal efficiency.The heat comes directly from the inside of the dry material,and there is little loss in the surrounding medium.In addition, the microwave heating chamber does not absorb microwave,so it all acts on the material, and the thermal efficiency is high.
4.Microwave kraft paper bag drying equipment is easy to use and control.Microwaves can instantly penetrate the heated material,heating it for seconds to minutes without preheating.Stop heating is instantaneous,no waste heat,automatic control of heating time and drying temperature.
5.Kraft paper bag microwave drying equipment has high efficiency.The characteristic of simultaneous heating inside and outside determines that the drying speed is faster than the conventional drying equipment and the drying time is greatly shortened.
6.Microwave drying equipment for kraft paper bags is even and of high drying quality.No obvious shrinkage, deformation and adhesion were observed on the surface of kraft paper bags after microwave drying.
7.Microwave drying of kraft paper bag belongs to electrical drying,which completely eliminates the smoke and dust pollution brought by the steam boiler and improves the factory environment.
Advantages of microwave drying equipment for kraft paper bags from the perspective of drying mechanism:
The traditional drying process is from the surface of the kraft paper bag to the inside of the kraft paper bag, and the water slowly diffuses to the surface of the kraft paper bag, and finally the water evaporates on the surface of the kraft paper bag.
The drying speed of the traditional drying method depends on the thermal conductivity of the material. Due to the slow speed of water diffusion to the surface of the kraft paper bag, the conventional drying process is slow and the treatment period is long, especially at the end of the drying process.
The mechanism of microwave drying for kraft paper bags is completely different.Microwaves interact directly with water molecules, generating heat in the center of the pattern, which creates steam pressure to pump water to the surface, where it is removed by hot air.When this principle is applied to the food industry, the microwave shrimping machine also solves some problems that have troubled the traditional technology.
Application of microwave drying equipment for kraft paper bags:
Microwave drying equipment of composite kraft paper bag is suitable for drying and sterilizing industrial paper bag, kraft paper bag, paper and plastic composite kraft paper bag, square valve bottom kraft paper bag, honeycomb paper card board, corrugated board, honeycomb paper board, paper tube, paper horn protector, paper holder, paper box, environmental protection paper bowl, packaging box board, etc.
Due to the poor thermal conductivity of paper products and wood pulp products, and the surface moisture cannot be removed too quickly, the traditional oven treatment, because it is heat conduction heating, the time is very long.
Due to microwave paper products drying equipment has characteristics,such as rapid heating,heating uniform, energy efficient,safe and harmless,no cracking,no deformation,continuous production and greatly improve the working conditions.At present, it has been widely used in paper products processing, wood, floor plate, process maker, corrugated board drying, shaping, bending processing, resin bonding and other aspects.