The current situation of China's cleaning industry

The current situation of China's cleaning industry

Cleaning, as a basic activity in people's daily lives, has become commonplace and widely neglected. Before the 1980s, the concept of the cleaning industry did not exist in China. However, in recent years, with the rapid development of the economy and the improvement of people's living standards, cleaning has also attracted more and more attention. On the one hand, since the 1990s, with the development of the economy and social progress, the scope of cleaning activities has gradually expanded, and a large number of professional cleaning companies have emerged. Especially in recent years, a large number of laid-off workers have participated in this field, and various cleaning companies are spread throughout the country. They usually engage in both general industrial cleaning and civilian cleaning. According to incomplete statistics, currently. There are already over 3000 cleaning companies with more than 300000 employees nationwide

On the other hand, new factories and production lines are being built everywhere in China, gradually becoming the "world's processing plant". The huge market demand provides a good opportunity for industrial cleaning equipment manufacturers and professional cleaning agent production suppliers to develop rapidly

At present, there are over 1000 manufacturers and operators of various cleaning equipment, including ultrasonic cleaning machines, spray cleaning machines, fully pneumatic steel mesh cleaning machines, fully pneumatic wire mesh cleaning machines, fully automatic PCBA online cleaning machines, fully automatic PCBA offline cleaning machines, fully automatic fixture cleaning machines, fully automatic water-based mesh cleaning machines, camera module cleaning machines, COD module cleaning machines and other series of automated cleaning equipment; Cleaning field: SMT、PCB、 Camera module, aviation, aerospace, medical, automotive electronics, optical glass, precision hardware, flexible PCB, module PCB, motherboard PCB, synthetic stone fixture; Wave soldering/reflow soldering of titanium claws, filters, etc. has formed a huge industry

The concept of the cleaning industry first appeared in 1992, when the former State Environmental Protection Administration (now the State Environmental Protection Administration) organized Peking University and other units to prepare and obtain approval from the State Council for the National Plan for the Phase out of Ozone Depleting Substances in China. According to the division of labor of the State Council, the cleaning industry was under the responsibility of the former Ministry of Electronics Industry (now the Ministry of Information Industry). Since 1992, some cleaning equipment has been engaged in this field. Enterprises, institutions, and individuals engaged in the production, application, and research of cleaning agents and cleaning technologies have begun to initiate preparations for the establishment of a national cleaning industry organization. On May 17, 1994, the China Cleaning Engineering Technology Cooperation Association was officially approved by the state and registered with the Ministry of Civil Affairs. Over the years, China's cleaning industry has undergone tremendous changes, and the member units of the Cleaning Association have developed from the initial precision industrial cleaning field to now covering the civil and industrial cleaning fields throughout the country. Some internationally renowned enterprises have also actively applied to join the China Cleaning Engineering Technology Cooperation Association. Currently, the Cleaning Association is the only national first level industry association in China's cleaning industry, with broad representativeness

1. Civil cleaning field

Since ancient times, humans have known and mastered some cleaning knowledge related to themselves. In ancient times, in addition to using clean water to remove sediment from the body and clothing, people also knew to use plant ash to remove oily dirt from clothing. Soda ash and soap are the oldest and most commonly used cleaning products by humans today. In the 20th century, with the development of the chemical industry, especially the petroleum industry, synthetic detergents and washing equipment emerged, greatly changing people's daily lives

People over 40 years old may still remember before the 1980s. Each person could buy two pieces of "Qingsong" or "Lighthouse" brand soap per month with a ticket. That's almost all of your monthly cleaning solution. You need to use it to wash clothes. You need to use it to wash your hair, and you also need to use it to take a shower. Since the reform and opening up, China's civilian cleaning industry has undergone earth shaking changes. From the early "Weina Bao" to today's "Haifei Si" and "Piao Rou", various types of shampoo are dazzling, and various washing product advertisements flood the golden frequency band of television. Nowadays, few people may use the same soap to wash their hair. Various types of cleaning agents are also placed in every household's kitchen, such as "glass water" and "ceramic tile spirit". A large number of companies such as "Oil King" have entered the market. At the same time, specialized and large-scale washing companies have spread throughout the streets and alleys. Professional household cleaning and sanitation companies of all sizes have emerged in large numbers, and the civilian cleaning field has become commercialized. The situation of specialized operation. With the sustained high-speed development of China's national economy, people have put forward higher requirements for the quality of daily life, and the demand for various types of cleaning is increasing day by day. Civil cleaning has formed a huge market. Currently, civil cleaning includes the following major fields:

(1) Household cleaning products: personal shampoo, conditioner, shower gel. Toothpaste; Soap, laundry powder, laundry detergent for washing clothes: tableware, fruit and vegetable detergent; Bathroom bathtub. Toilet specific cleaning agent, floor and carpet specific cleaning agent; Glass cleaning agent; Ceramic tile cleaning agents, etc

(2) Home cleaning services: various on-site cleaning services provided for families, such as cleaning for new house development; Wall painting and cleaning; Kitchen and range hood cleaning; Toilet cleaning; Floor and carpet cleaning; Cleaning of sofas, tables, chairs, and other furniture; Refrigerator, air conditioner, water dispenser. Television. Cleaning of household appliances such as speakers and microwave ovens

(3) Hotel, catering service industry cleaning: such as daily cleaning of hotel rooms; Bed sheets, duvet covers, pillowcases. Cleaning of tea utensils and other room supplies; Cleaning of tableware and kitchen utensils in restaurants; Cleaning of vegetables and food ingredients, etc

(4) Cleaning of school and unit collective canteens: cleaning of public utensils and kitchen utensils: cleaning of food processing processes, etc

{5) Hospital and other special cleaning: disinfection and cleaning of surgical instruments, nursing tools, and other hospital supplies; cleaning of inpatient ward supplies

(6) Professional clothing cleaning: Professional chain laundry shops, such as the Beijing time-honored brand "Puland", provide dry cleaning of clothing. Wet cleaning service

(7) Personal cleaning services: sauna, hair washing, facial cleansing, dental cleaning, foot washing and other personal cleaning services

(8) Civilian cleaning equipment: washing machine. Dishwashers, vacuum cleaners, electric toothbrushes, etc. High tech equipment such as automatic shower machines and household cleaning robots have also emerged abroad

2. Industrial cleaning field

Industrial cleaning is closely related to various industrial activities, some of which are an integral part of the product production process. Cleaning does not provide the final product, but is a local process, process or auxiliary activity in many industrial production processes. In some traditional industries, cleaning has been regarded as a simple process or common sense, often not valued by people. However, the quality of cleaning determines the performance and quality of the final product. Especially in today's high-tech industry, the role of cleaning technology is particularly prominent.

(1) General industrial cleaning

General industrial cleaning, such as boilers. The Conduit. Petrochemical equipment usually uses acids, alkalis, and some active substances as cleaning agents. Similar to civilian cleaning, it is usually based on the standard that dirt cannot be seen by the naked eye. For example, cleaning building walls, doors, windows, glass, etc. on the surfaces of cars, trains, airplanes, ships, etc; Oil pipelines, oil transportation, oil storage tanks, equipment pipelines, boilers, central air conditioning. Equipment maintenance, cleaning, etc. The characteristic is that after cleaning, the appearance can be significantly improved, the grade can be raised, and the performance of the equipment can be improved and restored. Generally, complex equipment and technology are not required. No need for high-purity cleaning agents, no need for a clean environment. Usually, ordinary water and acid are used. Alkali and heating. High pressure water, high-pressure air. Brushing, friction and other physical and chemical methods are used to complete the cleaning process. Many of them are manual operations with high labor intensity, high danger, low technical content, and rough and low added value labor that ordinary people can engage in

The cleaning equipment used in general industrial cleaning mainly includes high-pressure water jet devices, fully automatic car washing devices, high-rise exterior wall cleaning devices, etc

(2) Precision industrial cleaning

In many processing industries, some intermediate processes need to be cleaned first before proceeding to the next process, and some final products also need to be cleaned again, such as electroplating and painting of metals, plastic parts, and glass. Before vacuum coating, precise cleaning is required to remove oil and dust stains; Cotton fabric in the textile industry. Wool. Silk. Refined cleaning of linen and other materials; In the paper industry, degreasing, de ink cleaning, and precision industrial cleaning are directly related to product quality and performance. If the residual dirt exceeds the requirements, problems such as bubbles, peeling, and defects may occur. Special cleaning equipment and processes are generally required. There are certain requirements for the purity of the cleaning agent, and the water needs to be purified. Some work environments require it to be carried out in a clean room. Due to different industries. The cleaning techniques and equipment used in the production processes of different products vary greatly, even for similar products, enterprises of different scales, and different investment levels. The cleaning processes and equipment also differ greatly. For the same metal parts processing enterprise, those with large investments may use fully automatic flow cleaning lines, while those with small investments may use manual cleaning methods, first using diesel to remove oil stains and metal shavings, and then solvent degreasing and fine cleaning; Large automatic cleaning equipment may require tens of millions or even hundreds of millions of yuan. Small investment enterprises may only spend a few tens of thousands of yuan to purchase a single or multiple tank cleaning machine, some even just a few pots and cans. The mainstream technology commonly used in the field of precision industrial cleaning is a combination of ultrasonic, steam washing (heating), and spraying. When using water washing technology, it is necessary to increase the drying process and auxiliary pure water preparation and sewage treatment, and use solvent cleaning agents. It is necessary to increase solvent recovery and regeneration stations; Low boiling point solvents require additional condensation and sealing devices; Use solvents with high boiling points and add drying equipment; And the use of solvents with flash points requires additional explosion-proof measures

In recent years, some new cleaning technologies and equipment have gradually been developed and applied, such as vacuum cleaning, plasma cleaning, ultraviolet/odorous hydrogen cleaning, laser cleaning, dry ice cleaning, etc., which have emerged and demonstrated good results and application prospects. At the same time, with the overall improvement of the industrial level, non cleaning technologies have also begun to be promoted, especially in the fields of electronics industry and precision machining. Clean packaging technology can make components more efficient. Silicon wafers can be used immediately upon opening the box; The development of solid soldering flux has made circuit board cleaning free technology increasingly popular; Some precision metal processing uses residue free stamping or stretching oil. Combined with the next blackening process, the processing oil is directly heated and evaporated to achieve no cleaning, which has been applied in the production process of color cathode ray tube shadow masks. The cleaning equipment, cleaning agents and cleaning technology required for precision industrial cleaning can now be basically based in China. Professional cleaning equipment production units such as Shenzhen United Environmental Protection Equipment Co., Ltd. have won multiple international public tenders and mass produced single machine automatic and complete sets of large-scale cleaning equipment. After acceptance by domestic and international experts, it can fully meet the needs of China's cleaning industry

(3) Ultra precision industrial cleaning (spray technology, two fluid cleaning technology, etc.)

At present, microelectronics technology has developed to the level of nanotechnology, and 90 nanometer production lines are already under construction. Wavelength division multiplexing optoelectronic devices (DWDM) are widely used in communication equipment, and their resolution needs to accurately separate and identify light of different wavelengths. The cleaning of such products needs to be almost perfect, and the diameter of residual dirt needs to be around 0.1nm. Ordinary electron microscopes are difficult to observe. Ultra precision industrial cleaning must be carried out in a super purified environment, requiring the use of ultra-high purity cleaning agents and DI water (deionized water), as well as advanced cleaning equipment. Apart from some simple equipment, there were no companies in China that could provide such technology and equipment before, relying mainly on imports. Now, China has replaced it with professional cleaning equipment companies similar to Bosia, which have developed to a very mature stage to this day!

scan

scan