Comment: Energy Saving And Emission Reduction &Nbsp; Improve Quality

A new textile auxiliaries for scouring and bleaching -- Bogong tea saponin

It is developed by Shanghai Jintang light textile new Mstar Technology Ltd.

The dugong tea saponin is dust-free powder, tasteless and non flammable, and can be diluted with any proportion of water without any harmful chemical elements such as NaOH (caustic soda) and APEO (alkylphenol polyoxyethylene ether). No caustic soda, hydrogen peroxide and other chemical additives are needed to be used. Without changing the original equipment, the technical requirements of printing and dyeing pretreatment can be satisfied by simply adding directly to the original equipment, and it can handle almost all yarn, knitted, woven, towels and other grey fabrics such as cotton, linen, polyester cotton and blended fabrics.

It not only simplifies the technological process, avoids corrosion of equipment, avoids material damage, improves product quality, environmental protection discharge of waste water, ensures personal safety, but also directly reduces production cost, saves energy and saves working hours, and realizes ecological environmental protection and safety production operation.

The basic principle is to use the nano titanium dioxide TiO2 with 10nm~45nm diameter as carrier to modify the saponin of natural plant surfactants, which has produced highly catalytic efficiency. The reaction rate has increased to 102 times. It can quickly hydrolyze the fat, wax and impurities in the fabric, remove cotton seeds and lignin, and restore the white fiber of the cotton fiber, so that the fabric can be boiled, bleached and dyed in the same equipment and the same treatment liquid.

The capillary effect is more than 8cm/30min~16cm/30min, the whiteness is W10 70~W10 80, the cottonseed removal rate is 100%, the oil removal rate is 100%, and the impurity removal rate is 100%.

Technical innovation performance: Bu Gong tea saponin is suitable for dyeing pretreatment of cotton, linen, polyester and cotton blended fabric, especially for towel and grey cloth, which can realize scouring, bleaching and dyeing one bath. It not only shortens the process flow, saves water and steam costs, but also improves product quality, fiber strength, energy saving and consumption reduction, reduces wastewater discharge and is easy to deal with, reduces COD\BOD environmental protection index, and reduces production cost. At the same time, it realizes clean and safe production before dyeing and finishing.

Application case: for example, the production cost of Shanghai tea Textile Co. Ltd. is 50 yuan to 60 yuan / ton yarn.

Because of the softness of the yarn processed by the tea, the 1/3 of the softener is reduced.

The strength damage of pre treated yarns is obviously smaller than that of traditional oxygen bleaching processes, which increases the intrinsic strength index of yarns and improves the weaving quality of yarns.

The weight loss rate of the yarn boiled and bleached by Bu Gong tea saponin is obviously lower than that of traditional oxygen bleaching yarns, and the rate of preparation is increased by 2% to 3%.

After application of saponin, it is unnecessary to add caustic soda, hydrogen peroxide and chemical AIDS. It can effectively ensure that the yarn does not contain any harmful chemical elements such as APEO (alkylphenol polyoxyethylene ether) and so on, and the effluent is environmentally friendly.

Editor's comment: the development concept of additives is ingenious and can bring extraordinary cool experience to fabrics.

Wet pfer printing of various fabrics and other materials

The wet pfer technology of fabric developed by Hanyuan New Printing Co., Ltd., Changzhou, Jiangsu, is a technological innovation for pplanting polyester fabric heat pfer technology to almost all fabric printing.

But the technology adopted is different from polyester pfer.

The wet pfer printing technology of fabrics originates from natural fiber fabrics.

The research and development direction mainly has two routes: one is cotton cloth modification, disperse dye heat pfer; the other is printing paper coating agent, reactive dye ink printing, cotton cloth to wet and cold pfer two ways.

The former is not effective. After modification, the important wearability of cotton cloth is lost, and the main physical and chemical indexes of printing are not qualified.

The latter is pioneered in Denmark and can be industrialized.

The fabric wet technology developed by Changzhou Hanyuan is a little similar to the latter, and is more perfect and innovative, and it can be industrialized scale production, the technology is mature and the quality is stable.

According to the different fiber composition, pfer printing is carried out by reactive dyes and acid dyes, cationic dyes and solvent dyes respectively. This technology fills the gap of printing in China, and successfully pfers printing on cotton, silk, wool, leather, nylon and acrylic fabrics.

The basic principle: at present, pfer printing has been widely used in printing of polyester fabrics.

The principle is to make use of the characteristic of poor sublimation fastness of disperse dyes, first disperse dye into ink, then print the pattern on the paper, then make the fabric and printing paper pass the heating roller of pfer printing machine at the same time, the disperse dyes printed on the paper are heated and sublimated, and directly enter the fiber micro structure of the printed fabric, so as to show the flower pattern on the fabric.

Transfer printing technology is an ingenious combination of printing technology and textile printing technology, which makes up for the shortage of traditional textile printing technology.

Four color separation photo printing effect, multicolor multicolor printing effect, pitional color, gradual printing effect and so on, these are the printing effect that flat net and circular net can not perfectly reflect.

Generally speaking, natural fiber fabrics are cellulose fiber fabrics. The common printing dyes of protein fiber fabrics are reactive dyes and acid dyes, but the sublimation fastness of reactive dyes and acid dyes is very good. They can not be printed on the fabric by heat pfer printing, but the components of the paper are cellulose fibers, which are hydrophilic substances. They will adsorb reactive dyes, and acid dyes can not be pferred to fabrics at all. Therefore, as the carrier of wet pfer printing, paper must be treated with an isolating agent to increase the cost.

Even so, there is also a low pfer rate.

In wet pfer printing, the film carrier is the best carrier, but the film is not hydrophilic. Reactive dyes, acid dyes and cationic dyes are difficult to adhere to the membrane.

The fabric wet pfer printing technology developed by Changzhou Hanyuan has broken through the technical bottlenecks of reactive dyes, acid dyes, cationic dyes and hydrophilic dyes which can not be printed on PET films, and has successfully achieved fabrics for wet pfer printing, reactive dyes for cellulosic fabric printing, and acid dyes for protein fiber textile printing.

Cationic dyes are used for printing acrylic fabrics. Solvent dyes are mainly used for wood regenerated wood printing.

At present, Changzhou Hanyuan has successfully realized the pfer printing of wool fabrics with reactive dyes, so that the printing fastness of wool fabrics has reached the super washing resistance.

Technical innovation: fabric wet pfer printing, fabric wet process, paste dosage is 50% of conventional printing, printing process fabric moisture content is also the conventional process printing fabric moisture content of 50%, so in printing process, drying energy consumption is 50% of conventional printing drying.

In addition, during the fixation process, different dyes were applied with different fixing processes. The reactive dyes were cold packed and fixed, the acid dyes were steamed, and the solvent dyes were dried after printing.

In the process of pfer, the combination of dyes and fabrics is relatively strong. After finishing, full washing and water consumption are all more economical than conventional printing, and because of less floating color, less amount of paste and water produced by washing.

The color index of COD is better than that of conventional printing.

The final color fastness test of the finished product is greater than or equal to the conventional printing fastness index.

Because PET film is used as the carrier of printing, it is better than paper to reduce wood consumption and PET film can be recycled and recycled.

Application case: this technology is a patented technology developed by Changzhou Hanyuan.

At present, for self production, some authorization and technology promotion will be considered in the future. The company has developed the technology since 2005, and has begun to make profits in the second half of 2009, and has increased year by year, with an increase of over 50%.

Editor's comment: we are looking forward to similar technology development and application, which is the most effective guarantee for energy saving and emission reduction.

Microwave moisture sensing system {page_break}

The microwave moisture sensing system developed by Changzhou Rambo Textile Machinery Co., Ltd. consists of two parts: the first is the design and manufacture of the sensing system.

It involves a series of technical problems, such as design and manufacture of resonant cavity, horn antenna. After research and development, this project has made stereotyped products and filled the gaps in the industry.

The two is the application and popularization of the moisture sensor system in printing and dyeing process.

This involves many aspects of application from low water content to high moisture content.

In terms of moisture content below 15% of moisture content, the original three roll moisture measuring system is not only of low accuracy and linearity, but also of contact type.

For moisture measurement with high moisture content, microwave wetting can not only significantly improve the quality of products, but also the breakthroughs in some new technologies all depend on the application of this technology.

The success of this project is undoubtedly another breakthrough in online monitoring technology of printing and dyeing process.

The basic principle is that when the microwave passes through a certain wet substance, its energy decays, the degree of attenuation is related to many factors, but it is mainly related to water. When the microwave frequency reaches 10GH, other factors besides water can be ignored.

Therefore, the moisture content of the measured substance can be measured by measuring the attenuation degree of microwave energy.

Technological innovation: the accurate control technology of microwave frequency.

Through a series of experiments, the related parts and technologies are constantly simulated and reconstructed, and the sensor parts and pmission technologies reach a higher standard.

The optimization of the loudspeaker aperture is carried out to ensure the power of the resonator.

Field adaptability.

The complexity of the field environment needs to be eliminated and solved one by one.

At present, the commonly used moisture measuring method is three roll type, which has low accuracy (about 10%) and large error (30%), and can only measure the moisture content of fabrics with low water content (up to 20%).

This system is suitable for the whole process of printing and dyeing process from pretreatment to finishing. It is necessary to measure all the processes of fabric moisture content, which can achieve the purpose of saving energy and increasing output. There are even some breakthroughs in new technology, and also depend on the application of microwave moisture measurement.

Application case: moisture measurement at low moisture content has been tested in Dongyuan and Cheng an dyeing and printing company of Changzhou province with satisfactory results.

Editor's comment: this new technology covers the whole range of low moisture content to high moisture content, with high accuracy and low price. It has realized localization and filled the gap in China.

New reactive dyes and dyeing technology of Gao Naishai and Gao Han's color fastness

Developed by Liyuan (Hubei) Technology Co., Ltd.

The technology has designed and synthesized a series of reactive dyes with high light fastness, high sweat, light fastness, environmental friendly and multi reactive dyes. By optimizing the synthesis process and developing new biodegradable new dustproof agents and optimizing the process of industrialization, FL series reactive dyes and dustproof agent LY, which has excellent performance, high cost and more environmental protection, has been developed.

The series of reactive dyes developed by this technology has excellent fixation rate and high color fastness to sunlight and high sweat.

The development of new dust remover can effectively reduce the dust in dyeing and finishing process, prevent coloring and coloring, and improve product quality and production environment.

The new technology of high efficiency, low consumption and clean dyeing can reduce environmental pollution and has good effect of energy saving and emission reduction.

Based on the research and development of new reactive dyes and dustproof agents, a clean and efficient dyeing technology with high efficiency and low consumption has been developed through the study of clean dyeing technology and optimization of process parameters.

Technological innovation performance: a series of high sun resistant, high perspiration, environment-friendly and multi active reactive dyes were developed, which improved the fixation rate of reactive dyes, the fastness to sun fastness and sweat fastness of dyeing, and reduced the discharge of dyeing waste liquid, thus achieving energy saving and environmental protection.

A new biodegradable dustproof agent has been developed to solve the problem of dust flying in the process of dye production and use, and effectively prevent dyeing and coloring.

A new clean and efficient dyeing technology with high efficiency and low consumption has been developed to improve the production environment, reduce energy consumption and reduce pollution.

Application case: compare the energy consumption of the 1 ton product by the new clean dyeing technology and the common double functional reactive dyes and their dyeing process: taking 1 tons of dyestuff as an example, the average dye dosage is 2%.

Project clean dyeing new technology common dyeing technology savings

Salt dosage 350kg 500kg 0.15T

Dosage of soda 50kg 200kg 0.15T

95T 130T 35T for dyeing water

Electricity 120 degrees /2h 180 degrees /2h 60 degrees /2h

Using steam 5M3 7m3 2m3

Editor's comment: new technology determines acceleration, and clean dyeing technology is very powerful.

Sewage heat recovery system

The project was developed by Jiangsu Changzhou Rambo Textile Machinery Co., Ltd.

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There are a lot of hot sewage discharged from printing and dyeing factories, and the waste of heat energy is extremely serious.

Through the plate exchanger, the system can heat the sewage water to heat the cold water, so that the sewage temperature will drop from 70 to 30 degrees, and the cold water temperature will rise from room temperature to 60 ~70 C, in order to achieve significant energy saving benefits.

In order to prevent clogging of heat exchanger in waste liquid, the system sewage is filtered through the filter before entering the exchanger.

The filter is a three level series non-contact patented product with automatic recoil function and stable and reliable operation.

The system also has on-line monitoring functions such as temperature, liquid level and flow rate. Some process data, such as temperature, flow and energy efficiency, can be displayed, stored and printed.

The basic principle of this project is to pfer the heat from waste hot water to cold water, so as to improve the temperature of cold water and reduce the heat energy of heating cold water, so as to achieve the purpose of energy saving.

Technological innovation performance: it adopts non-contact and impurity removal, three level series and so on.

Intelligent and information technology is adopted to improve the automation level of the whole machine and realize online control and digital display.

Users can read relevant data at any time and directly, such as the temperature and flow of hot water and hot water when entering and leaving, and the heat and funds for energy conservation.

This system is suitable for printing and dyeing equipment such as desizing machine and oxygen bleaching machine.

The effect of energy saving and emission reduction is good. Taking 10 tons / hour as an example, steam is saved at about 0.5 tons per hour, which is equivalent to 100 yuan.

According to 20 hours per day, 20 days per month, the monthly steam consumption is about 40 thousand yuan, and the total cost can be recovered in general 3 months.

As the waste water is filtered, most of the impurities are removed, thereby reducing emissions.

Application case: more than 150 sets have been promoted over the past two years.

Among them, Huzhou golden printing and dyeing industry Co., Ltd. used the system in 2008, saving more than 4 tons of standard coal every day.

Zhejiang Huafu color spinning Co., Ltd. used 5 sets of systems in 2009, and now saves about 9 tons of standard coal every day for enterprises.

Editor's comment: for this kind of "

Industrial heating and waste heat utilization of solar energy

This is a comprehensive utilization project of solar energy and circular economy launched by Jiangsu New Osaka Solar Energy Ltd.

According to the information provided by the Suzhou Meteorological Center, the annual solar radiation time in the Suzhou area is 1800 hours ~2000 hours, and the total annual radiation is 4700 MJ / m2, which has abundant solar energy resources.

The company applies solar energy to the printing and dyeing industry, and raises the basic water temperature to the middle temperature and hot water, and then directly enters the dye vat for use. It also uses the solar energy to raise the basic water temperature to the high temperature hot water to enter the boiler to generate steam, which can save a lot of energy such as kerosene and steam, and shorten the heating time of the heating water and improve the work efficiency.

At the same time, it has made contributions to energy conservation and emission reduction.

They used waste steam, cooling water heat and sewage heat energy, respectively, using two parts of waste steam cooling water heat recovery and heat sewage heat exchange.

The whole system integrates two major energy-saving technologies, namely, solar thermal utilization and sewage heat recovery and utilization, which has good economic and social significance.

At the same time, it is equipped with the most advanced remote visualization real-time monitoring technology to monitor the whole production process in real time. The operator can only understand the production and operation situation through the monitor, and grasp the changes of the process parameters in real time.

Through the acousto-optic alarm and voice alarm, the accident can be handled in time, and it has the function of automatic fault diagnosis. Once the data exceeds the normal allowable range, the automatic stop order will be issued, which improves the automation level of the system and provides a powerful guarantee for the normal operation of the system.

At the same time, the lithium bromide absorption refrigeration mechanism can be used in the thermal surplus section of solar energy to produce cold or cold for life.

Technological innovation performance: adopting the advanced international "contract energy management" mode, so that users can reduce the energy cost to pay for all investment in energy saving reconstruction projects, so that energy saving and pformation enterprises can achieve "zero investment and zero risk" to achieve a win-win situation.

It adopts advanced remote monitoring, real-time dynamic monitoring and management of hot water system, changing passive service into active service, and effectively relieving consumers' worries.

The establishment of hot water supply center will not only meet the hot water demand of the plant, but also radiate the surrounding small and medium-sized enterprises, so as to maximize the energy saving effect.

This project produces an economic benefit of about 4000000 yuan per year for Kaida printing and dyeing.

Annual saving of standard coal is more than 3500 tons.

One year, 8000 tons of carbon dioxide emissions and 100 tons of sulfur dioxide were reduced, and a great deal of dust and ashes were reduced.

Increase production output, hot water 50 degrees C directly into the dye cylinder, can shorten the steam heating time, improve production efficiency.

Application case: Kaida dyeing and printing in Suzhou, Jiangsu has been applied for a year. The design capacity of the engineering system is 12 billion 686 million calories per year, equivalent to 21140 tons of steam saved annually.

According to the current steam price of 193 yuan per ton, the annual steam cost is 4 million 80 thousand yuan.

Editor's comment: by virtue of the power of nature, it is turned into a profitable round finger.