Polyester colored chip, colored bottle processed from it as raw material and preparation method thereof

Abstract

The invention relates to the field of colored bottle processing, in particular to a polyester colored slice, a colored bottle processed by taking the polyester colored slice as a raw material and a preparation method of the polyester colored slice. The polyester colored slice is prepared by adding a coloring agent in a PET slice synthesis process; and the coloring agent is mainly prepared from a dye, a hydrophilic group carrier or a resin carrier and a dispersing agent. The polyester colored slice provided by the invention is uniform in color and stable in performance; compared with the slice without the coloring agent, the viscosity number is reduced by less than or equal to 2%; and the colored bottle can be directly processed. The invention further provides the colored bottle and a preparation method of the colored bottle. The processing method of the colored bottle is simple and feasible; the entire process is easy to operate; the color of the colored bottle is easy to control; the prepared colored bottle is uniform in color; the colored bottles obtained in different batches are small in color error; the investment cost and the maintenance cost of coloring agent adding equipment are reduced; and the defects of environmental pollution, long color exchange time and the like caused by the addition of the coloring agent in a bottle blank processed in the prior art are well solved.

Description

technical field [0001] The invention relates to the field of colored bottle processing, in particular to a polyester colored chip, a colored bottle processed using it as a raw material and a preparation method thereof. Background technique [0002] The traditional polyester bottle dyeing process is to process polyester transparent slices into preforms by injection, adding colorant while injecting to obtain colored preforms; then blow the colored preforms to obtain colored bottles. The batch quantity of the traditional colored bottle processing technology is flexible, which can well meet the needs of small batches. [0003] However, the traditional process has the following disadvantages: [0004] 1. Waste slices during color adjustment; [0005] 2. The color changing process is long; [0006] 3. The liquid colorant pollutes the surrounding environment of the workbench and is not easy to clean; [0007] 4. It is not easy to calibrate the color at one time, and there are o...

AI Technical Summary

Problems solved by technology

[0004] 1. Waste slices in the process of adjusting colors;

[0005] 2. The color changing process is long;

[0006] 3. The liquid colorant pollutes the surrounding environment of the workbench and is not easy to clean;

[0007] 4. It is not easy to calibrate the color at one time, and there are obvious color differences between batches of different manufacturers and machines;

[0008] 5. The color oil carrier in the existing market is a common food oil, vegetable oil and plasticizer carrier, which does not react with PET, and reduces the viscosity of the bottle flakes, resulting in an increase in the rate of defective products

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