Advantages of solvent-free compounding
Release time:
2021-01-31
The composite process used by most domestic manufacturers is dry composite, dry composite process is an early introduction of production technology from Japan and Europe, which is characterized by mature technology, stable quality and a wide range of applications. However, dry compounding also has its inherent defects. Due to the need to use a large amount of organic solvents in the production process, the residual organic solvents in the packaging film will migrate after contact with food, medicine and other contents, which will eventually affect the health of consumers. Risk of impact.
The composite process used by most domestic manufacturers is dry composite, dry composite process is an early introduction of production technology from Japan and Europe, which is characterized by mature technology, stable quality and a wide range of applications. However, dry compounding also has its inherent defects. Due to the need to use a large amount of organic solvents in the production process, the residual organic solvents in the packaging film will migrate after contact with food, medicine and other contents, which will eventually affect the health of consumers. Risk of impact.
Solvent-free compounding technology was developed on the basis of solvent compounding due to the rising cost of organic solvents caused by the oil crisis in the 1970 s and the increasing global environmental protection requirements. Especially with the increasingly stringent restrictions on organic solvent emissions in various countries, flexible packaging manufacturers generally use solvent-free composite to replace the traditional solvent composite technology when expanding their composite production capacity. Compared with the ordinary dry composite process, solvent-free composite has the following advantages.
1. Health
The solvent-free process completely avoids the use of organic solvents in the production process, which fundamentally solves the problem of solvent residues. So solvent-free compounding is a healthy compounding process.
2. safety
Fire and explosion accidents occur from time to time in flexible packaging production enterprises at home and abroad, mainly due to improper operation or high concentration of organic solvents in the air. If the solvent-free compound is used, the use of organic solvents is completely avoided and the potential safety hazard is eliminated.
3. environmental protection
Solvent-free composite adhesives are completely solid substances and do not contain any organic solvents. Therefore, it has no effect on the health of the production workers, and at the same time, it also realizes the zero emission of organic solvents and avoids the problem of air pollution. It has obvious environmental advantages.
4. cost savings
1. Because the non-soluble composite process does not require a drying process, the energy consumption cost is effectively reduced. After calculation, the energy consumption cost of solvent-free equipment is 1/15 of the energy consumption cost of dry equipment.
2. From the perspective of production efficiency, the efficiency of solvent-free equipment is 1.5-2 times that of ordinary dry-type composite, which effectively reduces production costs.
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