As a common marking method for electrical cables, heat-shrinkable tubes are often used to mark cable numbers. As a common carrier for printing, heat-shrinkable tubes often cause unclear printing and many users will be at a loss. As a manufacturer, DUWAI , today we will give a detailed answer to the problem of unclear printing on the heat shrink number tube. Eliminate them one by one from the three perspectives of wire number machine, ribbon and casing.

1. The first possibility is that the print head of the printer is damaged. The printed number tube has horizontal white stripes. There is damage to a certain position of the print head. As a result, the content of this part cannot be printed on the heat shrink tube, resulting in Got Bai Tiao.

2. The problem with the ribbon. During the processing of the ribbon, the material is unevenly applied, and the quality of the ribbon is unstable. In this case, a low-quality ribbon is usually purchased. In this case, the printed content is generally a large area of blurry replacement. Ribbon can solve it.

3. The problem with the heat shrink tube is that the surface is rough and there is dust on the surface of the heat shrink tube, resulting in incomplete contact between the heat shrink tube and the ribbon, resulting in unclear printing. If there are other casings, you can replace them and try to see if the printing of other casings is clear. If the printing of other casings is clear but the printing of the heat shrink tube is not clear, it can be determined that the cause is the heat shrink tube itself. You can wipe the heat shrink tube clean or Just change it to another plate.

4. This is also one of the common situations. The heat shrink tube has just been produced from the production line and has not been stored. The printing will not be clear. This situation usually occurs in large batches. Basically, this batch The printing is not clear. This is because the heat shrink tube will pass through the glycerin tank when it expands. The glycerin is not completely evaporated and still adheres to the surface of the heat shrink tube, resulting in unclear printing. In this case, the heat shrink tube needs to be placed in a ventilated and dry environment, and it can be printed clearly after being stored for a period of time.

    DUWAI is a professional manufacturer of heat shrinkable number tubes. It can print heat shrinkable number tubes. Through professional industrial-grade printing equipment, its products have clear writing, complete product specifications and colors, are ready to use, are of high quality and low price, and can print customer needs. content, so you don’t have to worry about unclear printing. The font is scratch-resistant and wear-resistant, and can be marked with the same lifespan as the cable.