On September 11th, 2018, sponsored by China Household Electrical Appliances Research Institute, "Home Appliances Technology" magazine and China Household Electrical Appliances Research Institute Institute of Testing and Measurement Technology jointly carried out the 'standard silver ion sterilization for health ring protection flight' washing machine silver ion removal The seminar on technology and product performance and the Science and Technology Club Innovation Forum were held in Beijing. Experts from the industry, business representatives and more than 30 authoritative media in the home appliance industry, together around the development of health washing technology, washing machine sterilization, antibacterial function to consumers The effects of healthy living, as well as the functional characteristics of silver ion sterilization, testing technical requirements and evaluation methods were discussed in detail.
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With the upgrading of the consumption of the home appliance market, the health washing function has become the standard for high-end washing machines. The washing machine with antibacterial and antibacterial functions is thoroughly cleaned and effectively removes the characteristics of bacterial pollution. It has been loved by consumers. The sterilization technology is a sterilization and antibacterial technology widely used in home appliances. This technology has high efficiency of sterilization and convenient use. However, there are many types of washing machines on the market that claim to use silver ion sterilization technology. In the industry, there is no unified technical requirement for the sterilization effect achieved by the silver ion technology and the actual emission in the environment, and the attenuation of the silver ion sterilization effect, thereby causing the troubles of consumers to purchase. confused.
To this end, the Institute of Testing and Measurement Technology of China Household Electric Appliance Research Institute has researched and formulated the "Technical Requirements and Test Methods for Silver Ion Sterilization Function of Washing Machines" (hereinafter referred to as 'Silver Ion Removal Method'), this time passed the China Household Electric Appliance Research Institute. The 'Science and Technology Innovative Technology Forum' platform was launched to release the method, and will bring consumers the first washing machine products tested by this test method. This forum will detail how the 'silver ion sterilization method' The three methods of actual sterilization effect, actual emission, and attenuation of silver ion sterilization effect are quantitatively evaluated to regulate the use of silver ions to ensure that the technology does not pollute the environment while sterilizing.
Lu Jianguo, Director of the Institute of Testing and Measurement, China Household Electrical Appliances Research Institute
Lu Jianguo, director of the Institute of Testing and Measurement of China Household Electrical Appliances Research Institute, pointed out in the forum that with the continuous improvement of consumer demand, the health of home appliances has become an inevitable trend in the development of the industry. Home appliances with healthy functions must satisfy consumers. The need for physical and mental health, but also environmentally friendly, requires enterprises to intensify innovation and research and development, and effectively help consumers to create good products with healthy functions. From the function and quality of products, promote the high-end upgrade of the industry. For the sterilization function of the washing machine, Lu Jianguo said that the existing washing machine must use the specific sterilization process to achieve the sterilization effect. Consumers should purchase the products tested by the authority during the purchase process, and emphasize Focus on the effectiveness of sterilization technology, reliability and durability, and buy a healthy washing machine that has a decontamination effect.
Zhao Jindan, engineer of microbiology laboratory, China Household Electrical Appliances Research Institute
Zhao Jindan, an engineer of the Microbiology Laboratory of China Household Electrical Appliances Research Institute, introduced the sterilization technology and test evaluation method of washing machine at the forum. At present, the sterilization technology of the main application of washing machine in the market has high temperature sterilization, ozone sterilization, silver ion sterilization, Electrolytic water sterilization, nano water ion sterilization, UV sterilization, etc. Among them, silver ion sterilization includes ordinary silver ion sterilization, photodynamic silver sterilization, nano anion sterilization. The principle of ordinary silver ion sterilization is to use Ag+ Reducing, combined with sulfhydryl (-SH) on bacterial proteases, inactivates proteases, causing them to die. Its advantages are high efficiency, can effectively kill a variety of pathogenic bacteria, and has a long-lasting; photo-activated silver sterilization is the use of light The photocatalytic reaction of Ag+ and water produces hydroxyl radicals and reactive oxygen species, thereby achieving the sterilization effect. This method increases the hydroxyl radicals and reactive oxygen species based on the common Ag+ effect, and synergistically removes bacteria more thoroughly; nanometer silver ion diameter It is 10~100 nm, and the contact area with the outside is larger, which is more conducive to its entry into the cell, combined with the sulfhydryl group on the protease in the bacteria. Its advantage is broad-spectrum antibacterial sterilization, seepage Strong, low dosage. Although the three silver ion sterilization methods have good effects, the release concentration of silver ions needs to be closely controlled to avoid the hidden danger of heavy metal pollution, and the silver ion generator may no longer be used after a certain period of use. There is a sterilization effect, which is what consumers should know when purchasing.
Yao Yanchun, engineer of microbiology laboratory, China Household Electrical Appliances Research Institute
Yao Yanchun, an engineer at the Microbiology Laboratory of the China Household Electrical Appliances Research Institute, introduced the technical requirements and test methods for the silver ion sterilization function of the washing machine. Yao Yanchun introduced that the silver ion sterilization used in the washing machine utilizes the reducibility of silver, and the built-in silver in the host. Ionizer', the washing machine uses the principle of electrolysis in the influent process to decompose silver ions from the silver sheet with a purity of 99.9%, and enters the washing tub with the water flow, destroying the cell wall of the bacteria in the laundry stain, causing the bacteria to die. In order to achieve the desired sterilization effect, the silver ion concentration in the washing process plays a vital role. The technical requirements and test methods for the silver ion sterilization function of the washing machine used in this test are in GB 21551.5-2010 On the basis of the limits of special requirements for washing machines for antibacterial, antibacterial and purifying functions of similar uses, the sterilization rate of electric washing machines with sterilization function should be not less than 98.0%. The attenuation sterilization rate is not less than 95%: wave The washing machine runs 1150 times without trouble/the drum runs without trouble for 1150h. The residual amount of silver ions in the drainage in the test cannot be higher than 0.1mg/L. After the washing process, the residual amount of silver ions on the test piece is not higher than 0.2 mg/m2. The test of the Little Swan brand pulsator and drum washing machine reached the limit requirement in the 'silver ion sterilization method'. , has excellent sterilization effect, and will not cause harm to the human body, becoming the first washing machine tested by this test method.
Wu Zhiyuan, Technical Engineer, Wuxi Little Swan Co., Ltd.
Wu Zhiyuan, a technical engineer from Wuxi Little Swan Co., Ltd., also shared technology from the silver ion sterilization technology and the innovative development of the sterilization of Little Swan washing machine. Wu Zhiyuan believes that health care has become an urgent demand of consumers. At the same time, it will be an important trend in the future development of the washing machine. For this reason, the US/Little Swan washing machine R&D team realizes the health care of the washing machine through the water cube washing technology, nano silver-based sterilization technology and cold water washing technology. Rubik's water washing technology breaks through the washing machine's single washing and washing, and simulates various washing modes on the washing machine through the bionic design to effectively remove the laundry stains. The nano silver-based sterilization technology is equipped with long-acting release, precise release, sterilization and antibacterial technology. Function, continuous release of nano-ion in the washing process, to achieve clean and sterile under cold water conditions; and cold water washing technology can save energy consumption of laundry, while also making clothes lasting as new.
Why does the US/Little Swan washing machine choose silver ion technology to achieve the sterilization function? Wu Zhiyuan believes that the nano silver-based sterilization technology has been widely used in textile, medicine, home appliances, materials and other aspects to ensure the safety of use; In terms of low-temperature sterilization, silver ions can completely sterilize clothes and washing machines with the water flow inside the washing machine due to their water-soluble characteristics. In addition, silver ions can remain on the surface of the object and exert long-term antibacterial function, which is very suitable as Washing machine sterilization program selection.
Little Swan Washing Machine Beverly BVL2J90VG Product Show
Little Swan Roller Beverly BVL2D100TY6 Product Show
Wu Zhiyuan also introduced the swan wave Beverly BVL2J90VG model and the roller BVL2D100TY6 model detected by the 'silver ion sterilization method'. The water cube and nano silver base protection technology were applied. In terms of rate, the sterilization rate can reach 98% or more under cold water washing conditions. At the same time, the consumer's decay rate is maintained above 95% during the whole life cycle of the product; silver ion emissions, silver in water The ion emission is 0.044mg/L, which is much lower than the drinking water standard of 0.1mg/L. At the same time, the antibacterial silver ion residue of the clothes is lower than the standard 0.2mg/m2. The washing machine products tested by this experimental method ensure the use of silver ions. Its sterilization effect, at the same time does not cause pollution to the environment, the realization of the washing machine silver ion sterilization efficient, healthy and environmentally friendly, and guide consumers to buy reasonably.
The technical requirements and test methods for the silver ion sterilization function of washing machines developed by the Institute of Testing and Measurement Technology of China Household Electrical Appliances Research Institute will play a driving role in the development of silver ion sterilization technology. Lu Jianguo in the forum Emphasize that China Household Electrical Appliances Research Institute, as a third-party testing organization, will continue to pay attention to the application development of home appliance sterilization technology, and will continue to conduct in-depth research on standards and introduce more testing requirements and evaluation methods that will help the industry's technological progress. To help the health and standardization of the home appliance industry.