The mixing process of the salt bath curing line is divided into three stages, that is, the roll (softening stage with raw rubber added), eating powder (mixing stage with adding powder), and refining (after eating powder, the raw rubber and compounding... moreThe mixing process of the salt bath curing line is divided into three stages, that is, the roll (softening stage with raw rubber added), eating powder (mixing stage with adding powder), and refining (after eating powder, the raw rubber and compounding agents are uniformly dispersed. Stage).
The mixing of the open mill is different according to the type, use and performance of the rubber, and the process conditions are also different. During mixing, various factors such as the amount of glue added, the order of feeding, roll distance, roll temperature, mixing time, the speed and speed ratio of the roller, etc. should be paid attention to. It can neither be insufficiently kneaded nor over-kneaded.
The mixer mixing is divided into three stages, namely wetting, dispersing and nirvana, and the mixer mixing stone is carried out under high temperature and pressure. The operation method is generally divided into a one-stage kneading method and a two-stage kneading method.
The one-stage mixing method refers to... less
The function of the rubber extruder machine is to use heat, pressure and shear to transform solid plastics into a uniform melt and send the melt to the next process. Melt production involves the mixing of additives such as color masterbatches, resin... moreThe function of the rubber extruder machine is to use heat, pressure and shear to transform solid plastics into a uniform melt and send the melt to the next process. Melt production involves the mixing of additives such as color masterbatches, resin blending, and repulverization. The finished melt must be uniform in concentration and temperature. The pressure must be large enough to squeeze out the viscous polymer.
The rubber extruder performs all the above processes through a barrel with a screw and a spiral. The plastic pellets enter the barrel through a real hopper of the barrel, and then are transferred to the other end of the barrel through the screw. In order to have sufficient pressure, the depth of the thread on the screw decreases as the interval to the hopper increases. External heating and internal heat generated by friction between the plastic and the screw soften and melt the plastic. Different polymers and different applications often have different requirements for the design of the... less
Label updates:
Sooner or later, the BOPP labels of brand-name products will become obsolete, so it needs to be revised after a period of time. For example, the label of ivory soap has changed the font size and shape 18 times since the 1890s. OrangeCrush... moreLabel updates:
Sooner or later, the BOPP labels of brand-name products will become obsolete, so it needs to be revised after a period of time. For example, the label of ivory soap has changed the font size and shape 18 times since the 1890s. OrangeCrush beverages have significantly revised their labels due to the use of fresh fruit labels by competing brands. The new design symbolizes freshness and has stronger and deeper colors.
Legal restrictions on product labels:
For a long time, the law has restricted labels. Poor labels can cause misunderstanding to customers, or fail to describe important components of products, or provide adequate safety warnings. The US federal and state governments have targeted labeling legislation, the most important of which is the Fair Packaging and Labeling Act of 1966. In recent years, the label decision has been affected by unit price (indicating the price of each standard unit), unsealing period (indicating the shelf life of the product), and nutrition labeling... less