Introduction to the production process of "cosmetic aluminum-plastic tube"


The process of cosmetic aluminum-plastic tube has four […]

The process of cosmetic aluminum-plastic tube has four main processes of printing, welding, injection head and sealing. Cosmetic aluminum-plastic tube is a cosmetic packaging that has only become popular in recent years. It is made of aluminum-plastic sheet. It was originally used to make toothpaste, and it is also a trend in the future. For those who like cosmetic aluminum-plastic tubes, this article details the detailed production process of aluminum-plastic tubes.

Material introduction

There are five main materials for cosmetic aluminum-plastic tubes: ordinary silver sheets, ordinary white sheets, high-gloss sheets (also known as high-bright sheets), all-plastic transparent sheets, and fully-shaped white sheets. The five kinds of sheets have their own characteristics. The biggest difference is that the printing effect is different. The common point is that the printing effect is very realistic.

In addition, each material has different thicknesses. The most commonly used thickness specifications for cosmetic packaging are: 250μm, 270μm, 300μm, 330μm, 350μm, 400μm, and materials exceeding 400μm. The production process requirements are very high, many manufacturers do Not coming out. 350μm materials are commonly found in high-end cosmetic packaging, such as facial cleanser and sunscreen. Sheets below 300 μm are generally found in hand cream hoses, toothpaste hoses, and the like.

Printing art

There are three processes in sheet printing. Generally, offset printing is first carried out on aluminum-plastic sheet. The biggest advantage of this sheet is that it can print beautiful patterns and achieve photo-quality effects, which is widely recognized by customers. The other is silk screen, this is the same as the silk screen mentioned in the previous article. Although the silk screen is strong and beautiful, the silk screen can't print the pattern, only the simple text or LOGO can be printed, and the silk screen has the problem of inaccurate positioning. Text in different colors cannot be too close.

Pipe making process

The pipe is also called a pipe, and the production equipment is called a pipe drawing machine inside the factory. The printed sheet is a full roll and goes through the following steps after entering the machine:

1. Trimming: According to the pipe diameter, adjust the feeding width of the sheet to match the drawing rod.

2, the guide: the sheet is flat, in order to become a round, you have to use a special mold to guide into a round.

3. High-frequency welding: The material enters the position of the high-frequency welding knife. The high-frequency machine starts to work. The temperature is used to weld the front and back sides of the material together. At this time, the sheet has become round.

4. Cursor Sensing: Using the light cursor to sense the cut pipe mark printed on the material, the machine can distinguish the length of the pipe body of each pipe. This step is very important.

5. Pipe cutting: The last step is to use the cooperation of the cutter and the cursor sensor to cut the welded round tube into a product of uniform length. This step must pay attention to the flattening of the pipe position, if it is not smooth, the process behind it The impact is very large.

In the next article,Yason will talk about the injection process and sealing process for cosmetic aluminum-plastic tube.Thanks