Blister is a plastic processing technology that uses blister packaging equipment, such as blister forming machines, punches, sealing machines, high frequency machines, folding machines, etc. Heat and soften the flat plastic rigid sheet, and then vacuum the mold surface. Blister packaging products mainly include: blister, tray, blister box, etc.

For the blister industry, especially the medical blister packaging, food, and gaoduan electronics industries, in order to gain the trust and recognition of customers, the production workshop bixu has reached a cleanliness of more than 100,000 and maintains anquan production under this cleanliness condition.

According to the characteristics of dust-free workshops in the blister industry, the number of clean workshops is generally 100,000, and bixu meets the following requirements: sediment particles are 1-10 microns; summer temperature is 24-26℃, winter temperature is 20-22℃. The air pressure difference between the clean area and the zero clean area is not less than 5Pa, the air pressure difference between the clean area and the outdoor area is less than 15Pa; the illuminance is 200Lx; the noise standard is less than 70Db, and the fire resistance is not less than 0.6h..

At present, the production characteristics of the plastic dust-free workshop are that there are many people and the required fresh air volume is relatively large. Therefore, the following maximum values should be taken according to the following values: 10-30 points of the total air supply volume of the non-unidirectional clean room; compensation room The amount of fresh air required for exhaust air, maintain the positive pressure value in the room, and ensure that the amount of indoor fresh air per hour is greater than or equal to 40m3/h.