Thermal transfer printing process for polyesters

Abstract

The invention discloses a thermal transfer printing process for polyesters. A printing base cloth raw material, a thermal transfer printing machine, a printing assistant, printing dye, transfer paper,a dryer and a high-temperature and high-pressure steaming box are required in the process, and the process meets the production process requirements. The thermal transfer printing process has the advantages that the assistant is improved to aim at polyester fabrics of different textures, the printed polyester fabrics are enabled to have a good printing effect, the printing quality of the polyester fabrics is ensured, and the overall quality of the printing process is better ensured as compared with conventional simplified selection; the drying temperature and the drying duration of the printed fabrics are improved, so that overall micro shape changes caused by ultra-fast overall moisture loss of the printed fabrics, or color paste dispersion caused by overhigh drying heat, is avoided or reduced; trace moisture in the printed fabrics is lost along with subsequent treatment procedures, and accordingly, the overall printing process is not affected by the moisture in the printed fabrics.

Description

technical field [0001] The invention relates to the technical field of polyester printing, in particular to a thermal transfer printing process for polyester. Background technique [0002] Polyester fiber, commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol, referred to as PET fiber, which belongs to polymer compounds. Invented in 1941, it is the largest variety of synthetic fibers at present. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, and has high strength and elastic recovery ability. It is durable, wrinkle-resistant and non-ironing, non-sticky hair; [0003] Heat transfer printing refers to garment heat transfer printing, which is usually divided into heat-melt transfer printing and sublimation transfer printing. Heat-melt transfer printing is often used for cotton products. The disadvantage is that it feels...

AI Technical Summary

Problems solved by technology

[0003] Heat transfer printing refers to garment heat transfer printing, which is usually divided into heat-melt transfer printing and sublimation transfer printing. Heat-melt transfer printing is often used for cotton products. The disadvantage is that it feels poor in breathability. Sublimation transfer printing is often used in polyester The disadvantage of transfer printing is that the cost of plate making is high. Sublimation transfer printing can be divided into different printing methods: offset printing, gravure printing, silk screen printing, data printing; and the production process of polyester is also completed by thermal transfer printing

[0004] Therefore, based on the above research, there are still many deficiencies in the existing thermal transfer printing process of polyester. In the existing thermal transfer printing process of polyester, there will be dispersion on the surface due to the rapid loss of moisture inside the fabric, which cannot be better. The temperature of the polyester transfer printing fabric is rationally controlled, making it prone to more inferior products in the production process, resulting in cost loss and waste of resources. At the same time, the drying part of the process cannot be rationally controlled. Traditional The specific time of the process is relatively rigid, and it is impossible to achieve high-quality drying operations for different quality fabrics, and the quality of the transfer printing process is reduced. Therefore, it is necessary to improve the above production process to make it meet the production demand

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