What is salt?
According to the source, salt can be divided into sea salt, lake salt, well salt, mineral salt, soil salt, etc. Salt generally refers to table salt, which is a colorless and transparent cubic crystal with a salty taste and is easy to deliquesce when it contains impurities. Its main component is sodium chloride, which also contains a small amount of water, impurities, and other elements such as iron, phosphorus, and iodine. Table salt can be prepared by concentrating crystalline sea water or natural salt lake or salt well water.
What are the types of salt?
According to the density and source of the salt, the salt can be divided into the following types:
Table salt, Kosher salt, Sea salt, Pink salt, Black salt and Rock salt
How to store salt?
Table salt is easily soluble in water and has strong hygroscopicity. When exposed to the air for a long time, table salt is very easy to crystallize. Moreover, the table salt that people eat now is iodine added, and iodine is very volatile, easy to oxidize and decompose, so it is easy to lose its original nutritional value. So the way to preserve the salt is very important.
1. Store in a sealed bag
Filling the salt into the bag, and use the machine to seal the bag to isolate the outside air. So the salt will not crystallize easily.
2. Store in colored container
The edible salt that people buy in daily life is iodized salt, which has higher nutrient content, but it needs to be preserved. Because iodide is extremely unstable in nature, it is easy to decompose, volatilize and become invalid. It is also easily affected by light, high temperature, and humidity, and is prone to oxidative decomposition. Therefore, iodized salt should be stored in a colored container and sealed. At the same time, the colored container can effectively prevent light, can prevent the salt from absorbing heat and moisture, and can keep the salt for a longer time. The container should also be placed in a ventilated and dry place to avoid exposure to the sun and humidity, so that it can be stored for a longer time.
What machine is used to pack salt?
There are many types of salt packaging, and there are also many kinds of bags. According to the weight of different bags and salt, different types of packaging machines can be selected. There are usually the following kinds of salt bags on the market: sachets bag; pouch bag and pp woven bag.
1. Sachets salt packing machine
Sachets bag is suitable for sachets packing machine. The packaging weight is relatively small, usually 2-20g stick bag; 3 side seal bag and 4 side seal bag. Use a volumetric cup or linear scale to weigh the salt.
Automatically measuring volume, making bags, filling, sealing, cutting, printing the lot number and cutting easy tearing notches,making continuous sachet ,finished product conveying.
2. VFS granule packing machine
Pouch bag is suitable for packing 100g-5kg of salt. There are also many types of pouch bags, including pillow bag, gusset bag and quad seal bag. The packaging of this type of bag is done by a vfs granule packing machine.
According to the forming method of the bag, pouch bag can be divided into premade bag and roll film bag. The packaging film will decide the design of a normal salt packing machine. For the salt mill industry using 1kg pouch packaging, normally two kinds of films are commonly adopted: one is the laminated film and another is LLDPE Single Layer Film.
Premade bag packing machine can complete premade bag packing. The types of premade bag are: standup bag, zipper bag; standup zipper bag and so on.
3. Auto bagging machine
Salt bagging machine is also called open mouth bagging machine. Salt bagging machine is usually suitable for packing 10-50kg of salt, the bag is PP woven bag. Working processing from Raw material supplying, auto weighing filling , auto bag feeding, auto open mouth bagging, auto bag moving,auto bag sealing , finsihed products output.
In addition to the above three types of packaging, there is also a secondary packaging machine for salt.This unit is mainly to complete the fully automatic packaging process of neatly loading the already packaged small bag products (500~1000g) into composite film plastic bags and heat sealing according to the requirements (form of arrangement: single or double-row horizontal grouping etc.) so as to realize fully automatic operation from small pack packaging of bulk material to packaging of composite film plastic bags, save input in manpower, material and financial resources, reduce production cost for customers as well as improve production efficiency.
All in all, different types of machines can complete the packaging of different bags. The salt packaging mode can be changed according to the needs of the mark