Method for manufacturing dyed PET (Polyethyleneglycol Terephthalate) film

Abstract

The invention relates to a method for manufacturing a dyed PET (Polyethyleneglycol Terephthalate) film. The method comprises the following steps: directly fixing a transparent PET film on a rotary drum of a jig dyeing machine and dyeing the transparent PET film through a jig dyeing pool, wherein a dyeing raw material in the jig dyeing pool is a cationic dye, the temperature of the cationic dye is 60-110 DEG C, and the dyeing time is 1-10 minutes; after dyeing the PET film, drying the PET film and then rinsing, wherein the rinsing water temperature is 60-110 DEG C; and finally drying the dyed PET film so as to form a colored PET film. The method has the technical effects that the operation of directly manufacturing an ordinary transparent PET films into dyed PET films is an origination in the industry, not only can the manufacturing be convenient, but also the manufacturing of existing ordinary PET films is not affected, the cost is low, the market acceptance is facilitated, and the profit of enterprises is increased.

Description

technical field [0001] The invention relates to a method for making a PET film, in particular to a method for making a dyed PET film. Background technique [0002] At present, after buying a new car, it is necessary to decorate and beautify the car. The solar film is an essential part of the new car beauty process. The use of the solar film can not only insulate heat and heat, but also prevent solar radiation and skin diseases. Prolong the service life of car interior decorations; in the production process of solar film, different metal materials are usually sputtered on the surface of transparent PET film, so as to achieve the effect of heat insulation and radiation protection. However, the color of PET film cannot be changed. The color of the solar film is single, which affects the driver's driving vision and easily causes traffic accidents. Although there are colored PET films on the market, this kind of PET film is made by dyeing the raw materials of the PET film fi...

AI Technical Summary

Problems solved by technology

[0002] At present, after buying a new car, it is necessary to decorate and beautify the car. The solar film is an essential part of the new car beauty process. The use of the solar film can not only insulate heat and heat, but also prevent solar radiation and skin diseases. Prolong the service life of car interior decorations; in the production process of solar film, different metal materials are usually sputtered on the surface of transparent PET film, so as to achieve the effect of heat insulation and radiation protection. However, the color of PET film cannot be changed. The color of the solar film is single, which affects the driver's driving vision and easily causes traffic accidents

Although there are colored PET films on the market, this kind of PET film is made by dyeing the raw materials of the PET film first, and then made into a PET film. This method is not only complicated, the production cost is high, and the film production efficiency is low , the color has color difference after the film is formed, the color is not easy to control, and consumers cannot accept it