(a) Select the appropriate information. In practical consumption, appropriate printing films and printing inks should be selected in accordance with the filling conditions of the active filling machine, sterilization requirements, length of product shelf life, etc., and the printing process parameters should be adjusted and controlled in accordance with practical conditions. Standard process flow To ensure the printing quality of the film. Due to its water resistance and poor resistance to oils, polyamide printing inks can not be used for liquid inks; PU inks are also of different types and should be targeted when selected. New Western Chao Li 313A inks are generally used only The soft coextruded PE film, while the 314 is suitable for all types of coextruded PE films. Co-extruded PE film used by color printing manufacturers is usually blown by the manufacturer itself, and the skill level is not the same. Therefore, it is necessary to master the selection of the masterbatch. It is advisable to use a masterbatch that does not contain a slip agent; After EDM treatment, the appearance can reach 40 dyne minimum, and the best exceed 42 dyne.
(b) The customer's post-processing requirements or test specifications. Only color printers can fully understand the requirements of food manufacturers when they are filling and the subsequent processing technology, and even the details of liquid packaging in the market circulation, can be targeted and numerous. Important points to note include: filling rate, sterilization requirements, shelf life, storage requirements, etc.
(3) The request of the printing process. In order to ensure the printing quality of the liquid packaging film, it is necessary to pay attention to the control of the process requirements such as the printing tension, printing pressure, printing speed, and dry temperature in the printing process, and to establish a solid and reliable process specification and standard process flow to ensure the scale consumption. The smooth implementation. In addition, the overall quality of the printing workers, the technical materials provided by the ink manufacturers, the quality of the thinner materials, and changes in the workshop environment are not negligent elements.
(D) control the printing environment. The change of temperature and humidity in the printing shop has a certain influence on the functions of substrate materials and inks. The environment is too boring to cause static electricity in the film and the printing is difficult to form; the environment is too moist to make the ink dry and not full, affecting the firmness of the ink layer. Therefore, it is necessary to strictly control the ambient temperature and absolute humidity in the printing room, try to maintain it as absolutely constant, and ensure good ventilation to increase the occurrence of printing problems. Generally speaking, the temperature control in the workshop is between 18°C ​​and 25°C, and the absolute humidity is between 60% and 70%.
(e) Do a good job of inspection of finished products. The customer's satisfaction is the highest principle and final desire of each printing company, so it is necessary to ensure that qualified products are delivered to customers. This will not only allow customers to reach the heart, but also maintain the company's form and reputation, which is also the basis for maintaining and developing good customer relationships. In the liquid package consumption process, changing the membrane is more frequent, the function of easily forming a film is different, and the liquid package uses a small amount of ink, and the long-term use of the old ink printing can also bring about a decline in the ink function. Therefore, the liquid package consumption may be Many factors are changed. Color printing companies can imitate the customer's application requirements and work out a set of suitable product inspection specifications to ensure that the unqualified products do not leave the factory and prevent unnecessary losses.
(b) The customer's post-processing requirements or test specifications. Only color printers can fully understand the requirements of food manufacturers when they are filling and the subsequent processing technology, and even the details of liquid packaging in the market circulation, can be targeted and numerous. Important points to note include: filling rate, sterilization requirements, shelf life, storage requirements, etc.
(3) The request of the printing process. In order to ensure the printing quality of the liquid packaging film, it is necessary to pay attention to the control of the process requirements such as the printing tension, printing pressure, printing speed, and dry temperature in the printing process, and to establish a solid and reliable process specification and standard process flow to ensure the scale consumption. The smooth implementation. In addition, the overall quality of the printing workers, the technical materials provided by the ink manufacturers, the quality of the thinner materials, and changes in the workshop environment are not negligent elements.
(D) control the printing environment. The change of temperature and humidity in the printing shop has a certain influence on the functions of substrate materials and inks. The environment is too boring to cause static electricity in the film and the printing is difficult to form; the environment is too moist to make the ink dry and not full, affecting the firmness of the ink layer. Therefore, it is necessary to strictly control the ambient temperature and absolute humidity in the printing room, try to maintain it as absolutely constant, and ensure good ventilation to increase the occurrence of printing problems. Generally speaking, the temperature control in the workshop is between 18°C ​​and 25°C, and the absolute humidity is between 60% and 70%.
(e) Do a good job of inspection of finished products. The customer's satisfaction is the highest principle and final desire of each printing company, so it is necessary to ensure that qualified products are delivered to customers. This will not only allow customers to reach the heart, but also maintain the company's form and reputation, which is also the basis for maintaining and developing good customer relationships. In the liquid package consumption process, changing the membrane is more frequent, the function of easily forming a film is different, and the liquid package uses a small amount of ink, and the long-term use of the old ink printing can also bring about a decline in the ink function. Therefore, the liquid package consumption may be Many factors are changed. Color printing companies can imitate the customer's application requirements and work out a set of suitable product inspection specifications to ensure that the unqualified products do not leave the factory and prevent unnecessary losses.
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