Extensive Application Of Printing And Dyeing Pretreatment Technology

Atmospheric plasma equipment

Applications in preprocessing.

The Jiangnan Branch of the Chinese Academy of textile science has made certain achievements and progress with this technology, and has formed a pilot production line. It is recommended to further verify the effect of its final product in practice, and compare it with the final products of the traditional conventional processing technology, such as the effect of removing pulp, especially the effect of removing PVA pulp, the effect of removing the cotton hull and main cotton mixture, comparing the dyed amount, color fastness and brightness of dyed fabrics, comparing the effect of energy saving and emission reduction, and comparing the cost.

In recent years, due to the increasing demand for chemicals, waste water and waste materials in chemical treatment, there is room for development for physical, mechanical treatment and finishing. This is one example.

Development and application of ultrasonic wave in water washing.

In the past, there was an old concept that ultrasonic technology was easy to realize in laboratory, and it was difficult to realize in mass production. This is a project completed by combining production with learning. It has been applied first in dyeing water washing.

The author thinks that this technology will be extended to printing water washing and pretreatment water washing. In the pre-treatment technology application, it can also test the effect of removing pulp (especially PVA pulp). Of course, it is also faced with a lot of experiments, comparisons and accumulated work, safety assessment, cost comparison, attention to one-time investment, application enterprises acceptable, and effective combination with related new technologies, and a new way for printing and dyeing pretreatment.

New raw materials and multi component products.

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Chlorine bleaching process restricts the pretreatment technology of hemp products.

Basic requirements for pretreatment of air stream dyed products.

Because the air bath dyeing is relatively small, especially the natural fiber products containing cotton and linen, the permeability and uniformity should be paid attention to.

After dyeing, the dyed fibers are dyed, especially cotton and other natural fibers, which are easy to lump after processing. Therefore, the prospects for replacing fluffy, soft or innovative methods are that they produce a lot of light alkali after mercerizing. They are generally used in desizing and boiling and bleaching. Alkali also has a good supporting effect on the removal of chemical pulp and cottonseed husk and cotton mixture. At present, with the application and development of biological enzymes in printing and dyeing pretreatment, it should be an environment-friendly process technology in pre-treatment. However, there are many requirements for recovery, boiling and bleaching, and the recovery pressure of relative mercerizing light alkali is increased, and smoothness and so on, so as to improve its spinnability. Pretreatment technology of disperse fiber dyed products

The continuous pretreatment of knitted fabric has different requirements for singeing, bleaching, mercerizing and so on.

Continuous processing.

It also involves the requirements for pre-processing, which can be used not only for knitted dyed fabrics, but also for woven dyed fabrics. The continuous processing of yarns has been carried out by enterprises for the development and application of technology, equipment and products, so as to increase production, save energy and reduce emissions.

In particular, the development of double mercerized singeing products is beneficial to reduce the cost. It is suggested that "liquid ammonia mercerization" should be integrated into the process, because some people have developed the clearance type liquid ammonia finishing equipment, which is conducive to the development of yarn liquid ammonia treatment products, and the double mercerizing products such as the introduction of "liquid ammonia mercerizing" and double mercerizing products will go up to a higher level.

The above are only some superficial ideas of the individual and we should discuss them together to play a role in attracting people's attention.