We visited many factories and found that the key to thermal insulation is quality control. In terms of technology, most manufacturers have already mastered vacuum insulation technology. The industrial standard is to pour 95 degrees of water into a vacuum flask at room temperature. After 6 hours, the water temperature is above 60 degrees, this is a good vacuum flask should do . Principally, don’t cut corners, control the quality of the insulation layer, and make it thick, so that the insulation performance can be improved.
However, a very important application scenario of the vacuum flask is portable. When going out, theoretically users only want to hold “water” itself, so lightweight and smaller size have always been the direction of progress in this industry
This leads to a contradiction, how to keep heat preservation technology and lightweight technology at the same time
Since the insulated water bottle’s main task is to let people drink the water they want to drink anytime and anywhere, which involves personal safety issues. We should treat everything we want to put in our mouths carefully.
Previously, international news broke out that certain brands of vacuum flasks had heavy metals exceeding the standard. Unscrupulous factories used 201 steel that did not meet food grade to pretend to be food grade 304. As a result, most insulated water bottles sold on the market have a safety risk of heavy metal migration.
In addition, due to technical and cost considerations, most of the domestic insulation cups have a matte inner wall. The enlarged surface has actually a great number of tiny potholes, which are easy to leave stains. This is also the reason why many people give up the thermos drink bottle.
Here is an introduction to the advantages of the mirror liner process, that is, it is not easy to adhere to dirt. Many people want to buy this kind of thermos bottle, stainless steel vacuum double-layer insulation, cup bladder super mirror electrolytic processing, not easy to adhere to dirt. The lid has a high-quality silicone sealing ring structure, and the sealing effect is very good.
Based on the above surveys, the initial product definition has come out:
- Sufficient heat preservation performance;
- Portable and durable;
- No metal migration occurs even if the acidic liquid is installed;
- BPA Free; Toxic Free.
- The inner wall of the mirror is easy to clean.
mirror effect polishing of bottle mouth
Before Simple Flask brand established, some brands just worked hard in the direction of lightness and thinness. They made the inner liner thinner through precise spinning technology, reducing the thickness of the inner layer of the insulation layer without reducing the thickness of the outer layer, and increasing the vacuum degree. Lightweight, durable and portable vacuum flask; some brands use tailless vacuum and laser welding technology to reduce the base from three to two, reducing the overall volume, and through super bright electrolysis technology, the inner tank is processed into mirror surface, easy to clean. Other brands have gone the other way. After the inner liner is thinned, a non-stick coating similar to Teflon is added to achieve easy cleaning and antibacterial properties.
The owner of the insulated water bottle manufacturing plant told us that the six characteristics we defined are to combine the advantages of the current vacuum flask technology to meet the challenges. The challenge is very high and the cost will be high. The Simple Flask team decided to challenge the difficulties and seek a breakthrough in the quality of the vacuum flask.