For most wines on the market, the bottle mouth will be covered with a layer of "paper". Always cut the bottle before opening it.
In the earliest days, bottled wine was stored in dark, damp cellars, but this also provided an ideal habitat for rodents and bugs such as mice. In order to prevent corks from being eaten by animals, people added a layer of wine caps to the mouth of the bottle. Due to limited technology, wine caps at that time were made of lead.
Later, people realized that lead is harmful to the body. In 1996, the European Union and the United States simultaneously enacted legislation to ban the use of lead wine caps. Today, commonly used wine caps are tin foil caps and thermoplastic caps.
This process protects the organic properties of the wine, and allows the packaging of the wine to have a pleasing and beautifying function, sometimes with the function of certifying the authenticity of the wine through special design.
How does the shrink cap fit perfectly with the mouth of the bottle?
The process of "heat shrinkage" came into being. The principle is that the PVC wine cap will shrink when exposed to high temperature. The most important heating element in this process is the infrared heating lamp.
The advantages of infrared heating and heat shrinking:
1. Neat edges, good sewing performance, no flash
2. Linear bottle feeding, small site occupation, convenient layout, stable conveying and high efficiency
3. Precision PID temperature controller, precise temperature control