Polyester Tote Bag Bulk

Is polyester fabric a good material? Yes, in the backpack industry, polyester is a very common fabric. Over 90% of student backpacks are made from polyester, and it has the following advantages: High tensile strength: The breaking strength of polyester is about 4.4–9.6 cN/dtex, which is higher than that of cotton. Durability: Polyester can withstand thousands of rubs without damage. Low moisture absorption: The moisture absorption rate of polyester is 0.4-0.8%, which means it has strong moisture resistance and dries quickly. High colorfastness: Dyed polyester can achieve a level of 4-6 under the ISO 105-B02 standard, and it is not easy to fade even with long-term outdoor use. Good chemical resistance: Polyester has good resistance to common acids, alkalis, and oily cleaning agents.   Is 100% polyester better than cotton? It depends on the specific use. Polyester is superior to cotton in terms of durability, water resistance, and colorfastness. However, cotton is biodegradable, softer, more breathable, and more skin-friendly.Polyester is more suitable for making bags than cotton.   What are the negatives of polyester? It cannot degrade in natural conditions, which can cause long-term environmental pollution and does not meet the environmental requirements of some enterprises. It is prone to static electricity, especially in dry environments. It cannot withstand high temperatures. The melting point of polyester is around 250 degrees Celsius, and it will deform under high temperatures. It should not be used near fire sources or in high-temperature environments. Is polyester fabric good for bags? Undoubtedly, the characteristics of polyester (high colorfastness, water resistance, durability, and low cost) make polyester bags a very suitable choice.   Is a 100% polyester bag waterproof? A 100% polyester bag is actually only water-resistant, meaning it can repel water from daily rain, but it is not completely waterproof. The water resistance of a backpack depends not only on the material but also on the design and structure. Typically, the water resistance rating of a 100% polyester bag is IPX4, which is considered water-resistant but does not meet the waterproof requirement (remaining dry for 30 minutes at a water depth of 1 meter).   Does a polyester bag last long? Polyester bags are usually very durable. Polyester itself is known for its strong durability. As long as the structural design is reasonable, a polyester bag can typically last 3-5 years in normal conditions.   Which is better for bags, nylon or polyester? When it comes to polyester bag vs nylon bag, both materials have their own strengths.The advantages of polyester have been discussed earlier. In terms of water resistance and UV resistance, polyester has the upper hand. However, nylon is lighter, more durable, and stronger, making it more suitable for outdoor backpacks and other outdoor products. Additionally, nylon is more expensive than polyester.