Customization of gift vacuum cups has become a popular choice for many enterprises. In addition to the appropriate product price, what is important is that the product quality meets their requirements. How to judge the quality of customized gift vacuum vacuum cups?
1、 First, check the label or instruction manual of the vacuum insulation cup to confirm the authenticity of the product manufacturer.
2、 Identify from the appearance of the vacuum insulated cup.
Check whether the surface polishing of the inner and outer tanks is uniform and consistent, and whether there are bumps, scratches, or burrs;
Secondly, check whether the welding at the mouth is smooth and consistent, which is related to whether the feeling of drinking water is comfortable;
Check whether the internal seal is tight and whether the plug and cup body match;
Look at the mouth of the cup four times, the rounder the better. Immature craftsmanship can lead to non roundness.
3、 Sealing test: First twist off the cup lid to see if it fits perfectly with the cup body, then add boiling water (preferably boiling water) to the cup, and then invert the cup for two to three minutes to see if there is any water leakage.
4、 Insulation test: Because the vacuum insulation cup uses vacuum insulation, it can prevent heat from transferring to the outside world under vacuum conditions, thus achieving insulation effect. So to test the insulation effect of the vacuum insulation cup, simply pour 100 degree boiling water into the cup. After two to three minutes, touch each part of the vacuum insulation cup with your hand to see if it is hot. If any part heats up, the temperature will be lost from that place. It is normal for a slight fever to occur in areas like the mouth of a cup.
5、 Identification of plastic parts: The plastic used in vacuum insulation cups should be 304, which has a small odor, bright surface, no burrs, long service life, and is not easy to age. The characteristics of ordinary plastic or recycled plastic are strong odor, dark color, multiple burrs, easy aging and fracture of plastic, and odor after a long time. This not only shortens the lifespan of vacuum insulated cups, but also poses a threat to our physical health.
6、 Capacity detection: Because vacuum insulated cups are double layered, the actual capacity of the cups may differ from what we see. Let's first check if the depth of the inner liner and the height of the outer layer of the vacuum insulation cup are not significantly different (usually 18-22mm). Many small factories often focus on materials to reduce costs, which may affect the capacity of the vacuum insulation cup.
7、 Identification of stainless steel materials: There are various types of stainless steel materials, with 18/8 indicating that this stainless steel material contains 18% chromium and 8% nickel. Materials that meet this standard comply with the national 304 standard
