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Heat transfer printing technology of pure cotton and polyester cotton blended fabric

The heat transfer printing of pure cotton and polyester cotton blended fabric is a green textile and ecological dyeing and finishing technology that meets the requirements of environmental protection in the world and is conducive to cleaner production. It involves multi-disciplinary research field and is a system engineering with far-reaching social significance. At present, the new printing technology of heat transfer printing of pure cotton and polyester cotton blended fabric has been applied to industrial production. The production process and final products meet the requirements of international ecological dyeing and finishing technical standards.

The new technology of heat transfer printing of pure cotton and polyester cotton blended fabric provides a technological change to reduce the harm of printing and dyeing wastewater to the environment. The new process of transfer printing is the clean production mode confirmed in the catalogue of clean production technology guidance of national key industries.

In 2007, the new technology of heat transfer printing of pure cotton and polyester cotton blended fabric has been listed in the scientific and Technological Research Report by China Association of science and technology as the progress achievement and development direction of textile printing and dyeing technology.

1 development of transfer printing technology

Transfer printing technology is a new printing technology developed in 1960s. It is considered to be the most important invention and a revolution in printing technology after rotary screen printing technology. The transfer printing paper with pattern pattern pattern and polyester fabric are hot pressed together under certain temperature and pressure. The pattern on the paper, i.e. dye sublimation, is transferred to the surface of the fabric, diffused into the interior of the fiber instantaneously, and fixed by physical and chemical action to achieve the purpose of printing. Compared with the traditional printing process, this printing process has the advantages of small floor area, short process flow, high genuine rate, time-saving, labor-saving and water-saving, and the printed finished pattern is clear and exquisite, which is especially suitable for the production of small batch and many varieties. But unfortunately, the traditional transfer printing technology can only be carried out on polyester fabrics, not on natural fiber fabrics such as cotton, hemp, silk and wool, and the demand market is limited. The technology of heat transfer printing for cotton and cotton blended fabrics independently developed by Beijing Huaxu Tito Textile Technology Co., Ltd. breaks through the limitation of traditional transfer printing process on substrate and is conducive to saving investment. It is a revolution of transfer printing process. Due to energy saving, environmental protection, innovation and high efficiency, the new technology of heat transfer printing of pure cotton and cotton blended fabric has reached the requirements of multi color fine printing, which is in line with the development direction of new technology and new products of China Textile Industry Association in the 11th five year plan.

Since the 1980s, with the continuous development of computer technology, it has been widely used in various fields. The development of modern digital technology has also brought a new breakthrough to the textile printing and dyeing industry - digital ink-jet printing process, but up to now, there are still problems such as high ink price, low printing speed and high comprehensive cost, which restrict the scale of industrial production. The new technology of heat transfer printing for cotton and cotton blended fabrics independently developed by Beijing Huaxu DITO Textile Technology Co., Ltd. adopts the latest technology and advanced technology such as electric engraving, digital ink-jet printing and proofing to create high-quality fine printing products for pure cotton and polyester cotton blended fabrics with traditional printing speed, numerical control printing accuracy and clear multi-color layers, which is the focus of printing and dyeing technology Big break.

2 technical key

(1) Special textile finishing agent

(2) Special dye ink

(3) Proprietary routing

3. Technological innovation

(1) The environmental friendly multifunctional special finishing agent with high reactive activity has been developed for the special processing of cotton fabric.

(2) The research and development of environment-friendly special dye color ink, the application of color digitization, pattern controllability and other supporting advanced technology, fundamentally change the traditional cotton printing and dyeing process, provide new technical means for fine printing of cotton fabrics.

(3) it is a technological revolution in the field of cotton printing and dyeing to develop energy-saving and water-saving multi color fine printing process for cotton and polyester cotton blended fabrics.