The film has two main meanings, one is the special vocabulary, the collective name of the packaging film supplied to the roll in the packaging industry, which is also the commonly used usage of the word roll film. The other layer is the general vocabulary, which means that the film is rolled up, and the "rolling paper", "rolling cloth" and "rolling things" are a usage, but the vocabulary application is relatively rare.
The main advantage of rolling film in the packaging industry is the cost of saving the entire packaging process. The film is applied to the automatic packaging machine without any packaging manufacturer. Any edge-sealing work can be carried out only in the production enterprise. Therefore, the packaging manufacturer only needs to perform the printing operation, and the transportation cost is also reduced due to the supply of the rolls. When the roll film appears, the entire process of plastic packaging is simplified into three steps of printing-transport-packaging, which greatly simplifies the packaging process and reduces the cost of the whole industry. It is the choice of small packaging.
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