The secret of bag weather resistance: from laboratory to daily life, is your bag strong enough?
When we talk about whether a bag is durable, we often mention the word "weather resistance". So, what exactly is the weather resistance of a bag? How is it tested? Today, let's unveil the mystery of the weather resistance test of bags and see if your bag can still be "tough" under various extreme conditions.
Laboratory testing: simulating extreme environments and challenging the limits of bags
In order to accurately evaluate the weather resistance of bags, the laboratory will simulate various extreme climate conditions through a series of scientific and rigorous tests to observe the performance changes of bags after long-term exposure.
1. Environmental simulation test: let the bag experience "ice and fire"
- High temperature test: Place the bag in a constant temperature box to simulate the hot summer environment, where the temperature may be as high as dozens of degrees Celsius. Observe whether the bag material will deform, crack, or fade.
- Low temperature test: expose the bag to a low temperature environment to simulate the cold winter climate, where the temperature may drop to below zero. Check whether the bag will become hard and brittle in cold conditions, affecting normal use.
- Humidity test: simulate the wet rainy season or accidental splashing through high humidity environment or water immersion test. Evaluate the bag's moisture resistance, mildew resistance and metal accessories' rust resistance.
- UV test: Use UV accelerated aging test machine to simulate long-term sunlight exposure environment. Check whether the color of the bag will fade, and whether the material will age and crack.
2. Physical performance test: wear resistance, color fastness, accessories are all important
- Abrasion resistance test: Use an abrasion tester to simulate the friction in daily use, such as repeated friction with clothing and other items. Evaluate the abrasion resistance of the bag surface material and observe whether there will be wear, fuzzing, etc.
- Color fastness test: Use the friction color fastness meter and light color fastness meter to test the bag's color retention ability under friction and light. Ensure that the bag's color is not easy to fade and fall off, and can maintain a bright and beautiful appearance for a long time.
- Zipper and fastener testing: Use zipper life testers and fastener durability testers to test the smoothness, durability and reliability of zippers, fasteners and other accessories. Ensure that these accessories can still be used smoothly after long-term use without loosening or damage.
3. Chemical and structural testing: hidden “safety guards”
- Salt spray test: simulates the marine environment to test the corrosion resistance of metal accessories. This test is particularly important for bags that are often exposed to seawater or humid environments.
- Structural stability test: Through drop test and squeeze test, simulate the unexpected situations that the bag may encounter during transportation and use. Evaluate the structural integrity of the bag to ensure that it can withstand certain impact and pressure.
Testing standards and equipment: scientific and rigorous to ensure accuracy
In order to ensure the accuracy and reliability of the test results, the weather resistance test of bags needs to follow a series of international standards and testing methods of professional equipment.
- International standards: such as ISO 4892 (artificial weathering), ASTM G154 (UV weathering), ASTM D4329 (fluorescent UV light exposure), etc. These standards provide scientific basis and evaluation indicators for testing, ensuring the consistency and scientificity of test conditions.
- Professional equipment: including constant temperature and humidity chamber, UV aging tester, wear tester, color fastness tester, zipper life tester, fastener durability tester, etc. These equipment can simulate various extreme environmental conditions and conduct comprehensive and accurate tests on bags.
The weather resistance of a bag is a comprehensive indicator, which is related to the service life, appearance and practicality of the bag. By understanding the test methods, standards and importance of weather resistance of bags, we can better select and evaluate bag products. A bag with good weather resistance can not only accompany us for a longer time, but also show strong adaptability and durability under various environmental conditions. So, the next time you buy a bag, you might as well pay more attention to its weather resistance performance!