Construction experience of 100000 level dust-free purification workshop in printing and packaging plant

Construction experience of 100000 level dust-free purification workshop in printing and packaging plant



Words such as "smart printing", "smart printing", "cloud printing", "printing industry 4.0" and "printing industry Internet" have been put on the hot search in recent years. It is a huge system project for a printing factory to realize intellectualization, which involves the cooperation and operation of many hardware and software sections. As a business mainly engaged in the design and decoration of laboratories and clean plants, we have sufficient experience in controlling the hardware scope of plant infrastructure construction. Taking the packaging and printing factory as an example, if it can reach the standard of 100000 level dust-free purification workshop, the product quality can be significantly improved.



At present, most of the various packaging bags we often encounter in our life are printed by flexographic printing. Flexographic printing has developed rapidly in recent years and has been recognized as the most excellent and promising printing method abroad. In order to realize flexographic printing, the production workshop is built according to the standard of 100000 level dust-free purification workshop, which can well prevent the interference of dust and other substances on the printing quality, realize constant temperature and pressure inside, create a good working environment, and improve the quality and qualification rate of printed products. In order to stand out from the competition of many homogeneous printing enterprises, we must occupy the technological highland. GMP dust-free workshop, printing equipment, technology and advanced technology are all the basic guarantees of superior printing quality.



Take medical packaging with high standards as an example. The raw materials of plastic packaging can be produced into sterile medical plastic packaging only after seven processes such as printing, compounding, curing and cooling. In general large-scale printing workshops, most of the high-speed printing production lines are no less than 3, and the relevant supporting advanced equipment is more than several hundred thousand... The designer must reasonably arrange the workshops according to the standard production process of the 100000 level dust-free purification workshop, so as to make the production lines smooth and short, and avoid the cross return of the main production lines. Meet the transportation requirements inside and outside the plant and avoid the intersection of people and goods. At the same time, the safety and health of the plant and the spacing of buildings in the plant must meet the requirements of fire prevention, health and safety.



Technical parameters of 100000 level purification workshop:



Ventilation rate: 10-15 times / hour



Pressure difference: ≥ 5pa between main workshop and adjacent rooms



Temperature: winter ＞ 16 ℃± 2 ℃; Less than 26 ℃ ± 2 ℃ in summer



Relative humidity: 45-65% (RH)



Noise ≤ 65dB (a)



Fresh air supplement: 20% - 30% of the total air supply volume; Illuminance ≥ 300lux



How to achieve the above technical indicators? The professional cleaning engineering service chamber will cooperate with the internal supporting system from the decoration level. Welcome to call.



Routine operation at decoration level:



The wall and roof materials are generally made of 50mm thick sandwich color steel plates and special aluminum oxide profiles for purification. The door is a clean closed door, and the window is a fixed window made of aluminum alloy glass. The ground adopts epoxy self leveling or high-grade wear-resistant plastic clean floor. The purification ventilation pipe is made of galvanized steel sheet, and the "PEF" flame-retardant insulation board is used for insulation. The moisture content of the wood that must be used for the decoration materials of class 100000 clean workshop shall not be greater than 16% and shall not be exposed.



Operation at the level of internal supporting system:



A standard printing dust-free workshop supporting system is mainly composed of HVAC system, electrical system, lighting system, fire protection system, water supply and drainage system and process pipeline system. The designer must be very familiar with the configuration of various systems and be able to make field adjustments according to different areas and spaces in different industries to meet the air cleanliness of the dust-free workshop.



For example, the air conditioning system includes an air duct, a filter system; The air conditioning system must be a purified air conditioning system with primary, medium and high-efficiency three-stage filtration treatment. The selection of air conditioning units must be based on climatic conditions. For example, in the north, the air temperature is low and the dust content in the air is large. It is recommended to install the fresh air preheating section on the air conditioning unit and adopt the water spraying air treatment method. In the south, the climate is humid and the dust content in the air is low, so it is unnecessary to install the fresh air preheating section, as long as the primary effect filtration is adopted. In addition, the matching fans are preferably variable-frequency fans.



The general illumination value of the main production land in the clean room (area) should be ≥ 300lx; The illumination value of auxiliary working room, personnel cleaning and material cleaning room, air lock room and corridor should be 200 ~ 300lx.



The 100000 level dust-free workshop is widely used in many industries and fields at present. In addition to maintaining the air cleanliness, it is also necessary to ensure that other requirements except static electricity are met. It involves the construction of a series of professional systems to make the workshop meet the standards. Therefore, it is suggested to employ units with rich experience in the industry to participate in the planning, design and construction of the plant when building the dust-free workshop, and the clean Engineering EPC service chamber will have more experience. With a GMP dust-free workshop with superior environment, we can take the lead in green printing. Only by focusing on technology and process innovation can packaging and printing enterprises win more market opportunities.