The influence of environmental changes on the flexible packaging production

1, the definition of temperature and humidity temperature ( ℃) : representing the degree of cold and hot objects measurement. Relative humidity ( RH %) Said there are three kinds of methods: (1) the relative humidity, air vapor pressure and the percentage of the saturated vapor pressure. (2) the absolute humidity of wet air and same temperature could reach the ratio of the maximum absolute humidity. (3) can also be expressed as wet water vapor partial pressure in the air and the ratio of the same temperature saturation pressure of the water. Therefore, reduce temperature, relative humidity, temperature is lower relative humidity increases, until 100% relative humidity and dew point is reached, excess water condensation occurred. 2. Environmental change impact on product quality of the continuous change of environmental temperature and humidity can cause the successive waves of flexible packaging products quality, if we did not detect the change trend of environmental change caused by the quality and will eventually appear nonconforming product. The right thing to do is to predict the impact of environmental change some features on the quality of our products, and make the necessary process adjustment, prevent nonconforming product. 3. The change of temperature and humidity seasonal variation in China a year on average temperature and humidity as shown in the figure below. Can be seen from the diagram, the high temperature of the year are mainly concentrated in the month of June, July, August, September, at the same time in this a few months are home to the largest concentration of rainfall in China, the relative humidity is higher also, which said the high temperature and high wet season. 4. In environment of regional differences in the summer climate in the south of the Yangtze river is high temperature and high humidity, the average maximum temperature of 31 ~ 34 & deg; C, the average relative humidity of 80% ~ 83%. But our country north of the Yangtze river, high humidity in summer are below 70%. 5. Absolute humidity and temperature/humidity chart for the correlation of the absolute humidity in the air here, along with the change of relative humidity and temperature can be seen from the picture: absolute temperature increases with the increase of relative humidity, but the environment temperature is higher, the trend is more obvious, that water content is very high in the air under high temperature and high humidity environment. 6. Flexible packaging enterprises workshop temperature and humidity control present situation (1) a few companies have GMP workshop, GMP space has control facilities workshop temperature, relative humidity, but based on considerations of operating costs, only used when necessary. (2) most medium-sized enterprises installed water-cooled air conditioning, the workshop temperature control function, has a certain effect on humidity control is limited, sometimes actually increased environmental relative humidity. (3) more and more small businesses, the workshop ventilation, only add fan, workshop environment temperature and humidity directly affected by the outside world. Some ice, drinks in the shop, the artificially created high temperature and high humidity environment.