Why should the printing pattern on the surface of the stainless steel cup be sprayed with a primer?Is it okay not to spray?
Recently, some of my articles have been shown quite a lot on a certain platform.Although the platform later restricted the flow for reasons such as invisible advertisements, the editor still received many messages from readers and friends.One of the problems is that some of the surface patterns of the multiple insulated cups purchased will gradually fall off when they are cleaned, but some will not. What is the reason for this?
What this question needs to be answered is included in today's title, but it does not fully represent today's title.To answer this question, we need to answer the second question first, is it possible not to spray the primer before printing the pattern on the surface of the stainless steel water cup?The answer is yes, you can print the pattern without spraying the primer.Well, please note that this question only answers the pattern that can be printed without spraying the primer.
There are two reasons why it is necessary to spray a layer of white primer on the surface of the stainless steel water bottle to print the pattern on a large area.One reason is for the realistic color of the packaging pattern.If the surface of the stainless steel water cup is not sprayed with paint, the color presented is silver-gray with metallic luster.
Friends who have some understanding of the printing process know that if the saturation of the printing color is guaranteed to be the primary color, it must be printed on white.Any color other than white as the base color will cause the color cast of the printed pattern.If it is directly printed on the surface of the stainless steel water cup without spraying, the printed pattern will be obviously dark.
Another reason is to make the pattern more solid, so that the pattern does not fall off when cleaning.Printing on the primer has special requirements for the ink, and more inks will match the primer, so that not only the color reproduction can achieve the best effect after printing, but the adhesion between the pattern and the paint can also achieve the best state.
If the primer and ink do not match and conflict, there will also be a phenomenon of easy peeling.In order to avoid mismatches (after all, if the materials are to be matched every time, it will not only require a lot of time and cost to test the material), some factories will print the pattern on the surface of the cup and then carry out a varnishing process.After baking at high temperature, the pattern is printed on the inner layer without contact with water, detergent, etc., and the varnish on the surface plays a protective role.
The editor has assumed some questions, and at the same time, the editor does not reprimand any other products except water cups, but only some assumptions made to answer the content of the title, without any prejudice, and only represent personal opinions.
Dongguan Zhanyi Commodity Technology Co., Ltd. specializes in the production of metal cups, plastic cups, coffee cups, suction mug, lunch boxes, food jar, travel mugs, portable water bottles, sports bottles, home life desktop trash cans, thermos bottles, etc.These products are all our annual exports, and are recognized and loved by the US, Europe, Australia, Japan, South Korea, Taiwan, Hong Kong and other consumers. Support for small quantity order, fast customization.
