Printing And Dyeing Industry

Printing and dyeing industry development opportunities and crises coexist.

Developed countries abroad

During the 2011 printing and dyeing annual meeting, the reporter interviewed Fu Jishu, general engineer of Zhejiang Yi Zhuang printing and dyeing Co., Ltd., and discussed the topic of pformation and upgrading of dyeing and printing and energy saving and emission reduction.

Advantage of Technology

Production of special products

At the beginning of the interview, Fu Jishu talked about the key words of pformation and upgrading, energy saving, emission reduction, meticulous management and performance appraisal.

At the same time, he stressed that only by continuously eliminating backward production capacity, adjusting product mix, reducing energy consumption, reducing pollutant emissions, increasing efficiency and reducing costs can we realize the sustainable development of printing and dyeing industry.

First of all, in the links of reducing energy consumption, reducing emissions, efficiency, environmental protection and harmonious development of human culture, we can understand that adjusting product mix, improving product quality and grade, developing products with high added value, and carrying out equipment and technological pformation, optimizing the technological process, and saving energy and reducing emissions from the source.

We should strengthen meticulous management, personnel training and energy consumption cost emission performance assessment.

Among them, managers' awareness and planning decisions are the key points, which include different modes of pformation and upgrading.

Speaking of this, Fu Jishu believes that leaders of printing and dyeing enterprises must first use technological advantages and produce distinctive textiles.

At the same time, we should adjust the product structure, optimize the process, form specialized production, reduce costs and improve efficiency.

Take a closer look, the pformation and upgrading of domestic excellent printing and dyeing enterprises are closely linked with energy saving and emission reduction. These existing experiences have proved that although some enterprises' products improve the quality of products, they may lead to complex processes and may even increase energy consumption and emissions. However, the enterprises that are really well done are upgraded through product grades, specialization is enhanced, and the success rate is increased, thus improving production efficiency.

And all kinds of energy consumption and sewage will be significantly reduced, so pformation and upgrading can promote energy conservation and emission reduction.

Adjust product mix

Forming superior products

Printing and dyeing enterprises have to adjust their product mix and form superior products. Fu Jishu emphasized more than once in the interview.

He said: "printing and dyeing enterprises must combine their own characteristics, grasp the product structure adjustment, and form their own superior products, so as to make the market share enough, bulk up, process refined, the cost will naturally come down, the quality will also improve, and the brand efficiency can then be established to form sustained development."

The pformation of equipment in printing and dyeing enterprises is the foundation.

This includes equipment automation control and on-line detection technology pformation, key equipment renewal, equipment maintenance and maintenance, equipment automation control and on-line detection technology pformation.

In addition, this includes the active technical pformation of the existing normal equipment, which not only has less investment, but also has quick results.

Improve production control accuracy, thereby improving product quality and grade, reducing rework and reducing costs.

For example, mercerizing machine can use alkali concentration automatic detection and control system, desizing refining machine can use auxiliary concentration automatic control system, hydrogen peroxide bleaching concentration automatic control system, drying machine fabric moisture content online detection and steam automatic control system, dyeing machine water level and water automatic control system.

In Fu Jishu's view, enterprises should gradually improve their awareness of the renewal of key equipment.

For key equipment that can significantly improve product quality and reduce energy consumption, key technologies should be reformed.

If the air flow dyeing machine is used instead of the liquid dyeing machine, the consumption of water can be greatly reduced, and the bath ratio can be reduced from 1 to 8~10 to 1: 3~4, thereby greatly saving water, steam and auxiliaries, and the success rate of products is high and the discharge of pollutants is reduced.

The high pressure rolling mill instead of the original rolling mill is used to dry the water before drying. Although the cost is about 100 thousand yuan, the efficiency of the rolling water can be increased by nearly 20%, and the consumption of steam can be reduced.

The application of cold pad batch and cold pad batch dyeing equipment can significantly reduce the energy consumption of hydropower and steam.

The small bath ratio dyeing machine has obvious energy saving effect.

The flat width pre-processing equipment can not only improve the quality of products, but also reduce energy consumption and emissions.

The installation of automatic control system for boiler coal combustion has the advantages of low cost, quick effect and obvious electricity saving and coal saving.

Technological innovation is the core

In discussing the topic of technological innovation, Fu Jishu used four positive, one improvement and one emphasis to explain his understanding of this topic.

The first is the active adoption of new technology.

Now many fabrics are made of two components, or even three components and four components. Bold experiments should be carried out in "one bath dyeing and dyeing" and "one bath dyeing with different properties dyestuffs".

Such as disperse dyes, reactive dyes, light one bath dyeing process, disperse dyes, cationic dyes one bath dyeing process, disperse dyes, cationic dyes, direct blended dyes, one bath dyeing process and so on.

One bath two step dyeing process can also be used for difficult fabrics. For example, N/R fabric can be dyed with one bath, two steps.

Many cotton fabrics can be processed by cold pad batch process. Many spandex fabrics can be treated with flat width pretreatment, and many fabrics can also be treated with pre treated dye vat for flat width pretreatment, etc., so as to shorten the process, reduce energy consumption and reduce emissions.

The second is the active use of new dyes.

The improvement of product quality and the improvement of the success rate of production process are inseparable from the improvement of dyestuff quality. Therefore, enterprises should actively adopt new dyes with high quality and high performance.

Many one bath process is inseparable from the use of new dyes, especially high stability reactive dyes.

At the same time, new auxiliaries and efficient auxiliaries should be actively applied.

The short process is often inseparable from new auxiliaries and high efficiency auxiliaries. For example, the one bath dyeing and finishing process is based on highly efficient dyeing and finishing auxiliaries. The use of tea saponin instead of alkali oxygen technology can shorten the processing time, reduce the discharge of sewage and stabilize the quality of products.

The high efficiency soaping agent after dyeing with reactive dyes can also shorten the soaping time and reduce the soaping temperature.

Finally, active use of new equipment can start with technological changes. New equipment can often reduce sewage discharge and stabilize quality.

For example, continuous flat width pretreatment, especially for plain fabric pretreatment.

We should jump out of the vicious circle of low price competition and turn to win the same quality, the same fabric, the same process, but the quality control standard is different, and its value is very different.

The fundamental problem of pformation and upgrading must first improve product quality and grade, and narrow the gap between the quality of products and similar products abroad.

Fu Jishu stressed: "we must firmly grasp the quality of existing products, especially conventional products.

In particular, we should pay attention to the improvement of market and customers' requirements for product quality.

Such as color fastness to perspiration, light fastness to sunlight, fastness to chlorine, and so on.