Because I have been in the water cup industry for more than 10 years and have encountered many examples of water cups, the topic of this article is relatively long. I hope everyone can continue to read it.
Type F water cup, stainless steel thermos cup. Many friends like to use stainless steel thermos cups. In addition to being strong and durable, the main reason is that this water cup can keep heat for a long time. However, some consumers find that the heat preservation performance of the water cup drops rapidly after using it for a short time after purchasing. In addition to problems with the workmanship quality, there is also more work-cutting. In the process of producing thermos cups, vacuuming is a very important process. The standard operation of this process is continuous vacuuming at a high temperature of 600°C for 4 hours.
However, in order to reduce production costs and improve production efficiency, many factories will shorten the general vacuuming time. In this way, the heat preservation effect of the produced water cup is still acceptable when it is first used. However, because the air in the interlayer of the water cup is not completely evacuated, after multiple uses , the high-temperature conduction of the water in the water cup will cause the residual air in the interlayer to expand. As the air expands, the interlayer changes from a semi-vacuum to a non-vacuum, so it is no longer insulated.
Type G water cup is also a general term, referring to the paint sprayed on the surface of the water cup. Since water cups are used for people to drink water, the materials for producing water cups and the materials for auxiliary processing of water cups must be food grade. Most of the water cups currently on the market All have been sprayed on the surface, which not only looks beautiful, but also has a certain protective effect. The paint used in most water cup factories now is food-grade water-based paint. This paint is not only safer for the human body but also more environmentally friendly. However, water-based paint also has certain shortcomings. This type of paint has poor adhesion to the hardness meter.
It is easy for consumers to cause the paint to peel off during use, giving consumers a very bad consumer experience. This situation is also one of the most common complaints about water cups. Another situation is the problem of lack of heat preservation. However, in order to reduce this situation and reduce production costs, some factories choose to use oil-based paints. This type of paint not only contains high heavy metal content, but also contains radioactive substances in severe cases. Water bottles sprayed with this type of paint for a long time are harmful to People suffer more physical damage, and the cost of oil-based paint is lower than that of water-based paint, so it will be used by some unscrupulous businesses.
Post time: Jan-03-2024