The General Testings Conducted in Chiterion - Fondofold Cooler Bag Production

In modern life, thermal insulation bags are widely used in many scenarios such as takeaway delivery, picnics, cold chain transportation, etc. as a powerful assistant to keep the temperature of food, medicines and other items. Behind its seemingly simple structure, there is a series of rigorous and sophisticated production testing processes. These tests are the cornerstone to ensure that the thermal insulation bag has excellent performance, reliability and durability.

1.Thermal insulation performance test

The thermal insulation effect is undoubtedly the soul of the thermal insulation bag. During the production process, professional laboratories simulate a variety of actual use environments, from a few hours of short distances in daily commuting to more than ten or even dozens of hours of long-distance travel, and conduct all-round testing of thermal insulation bags. Using a high-precision thermometer, a heat source or a cold source is placed in the bag, and the temperature change is measured after a certain period of sealing. For example, in a simulated summer high temperature environment of 35℃, the insulation bag filled with ice cubes is left still for 4 hours to observe the degree of melting of the ice cubes and the temperature rise in the bag. The temperature rise is required to be controlled within a very small range to ensure that the cold drink can be kept cool for a long time; in the cold winter test, hot water is filled with 5℃ outside temperature as the benchmark. After several hours, the hot water must still maintain a suitable temperature for drinking, so as to verify its ability to lock in temperature in a low temperature environment. Insulation bags of different specifications and materials have different insulation standards. Through repeated tests, the thickness of the insulation layer and the material combination are continuously optimized to ensure that the insulation performance reaches or even exceeds the industry standards.

2.Sealing performance test

A tight seal is like a guard of the insulation bag, which can effectively block the convection exchange of heat and the outside air. On the production line, professional pressure equipment is used to inflate the sealed insulation bag and observe the changes in air pressure to detect whether there are slight gaps in the seal. At the same time, a water splashing test is conducted to simulate rainy days or humid environments, spraying the insulation bag from all angles to check whether there is water seepage in the bag opening, seams, zippers and other parts. Once water enters, it will not only accelerate heat loss, but also damage the items in the bag. For food insulation bags, excellent sealing can also prevent odors from mixing in and ensure the original flavor of the food. This is especially critical in high-end catering takeaway delivery. A tiny sealing defect may lead to a significant reduction in customer experience.

3.Material strength test

Insulation bags must withstand various external forces during frequent use. The tensile strength test of its fabric simulates daily handling and squeezing to determine the maximum tensile force that the fabric can withstand without damage; the seams are repeatedly torn to simulate the stress conditions under long-term load to ensure that the seams are firm and avoid cracking that causes the insulation layer to be exposed and the function to be damaged. The bottom load-bearing test is more stringent. Load heavy objects several times the designed load capacity, observe the deformation of the bag, and ensure that when the bag is filled with items and placed for a long time or transported bumpy, it can still maintain its basic shape without cracking or collapsing, ensuring safety and life, so that consumers can trust it for a long time.

4.Environmental protection and safety testing

Nowadays, the concept of environmental protection is deeply rooted in the hearts of the people, and the production of insulation bags must follow strict environmental protection standards. Raw materials must pass the heavy metal content and harmful substance volatilization tests to eliminate potential threats to human health and the environment; insulation bags made of degradable materials must be tested for degradation cycles and conditions to ensure that they can be decomposed as expected in the natural environment and reduce "white pollution". Check from the source of production, contribute to the earth's ecology, and let insulation bags not only serve life, but also coexist harmoniously with nature.

In Chiterion - Fondofold bags, behind every process of insulation bag production, these testing links are intertwined and checked layer by layer, condensing the hard work of R&D personnel and producers. They are silent quality inspectors who speak with data, just to present high-quality, efficient, safe and environmentally friendly insulation bags to consumers, to meet the increasingly diverse needs of life, and to live up to expectations every time temperature protection is needed.