How to balance strength and flexibility in triangle cone bag material selection to meet the packaging needs of different products?
Publish Time: 2024-12-11
In the diverse landscape of the packaging world, triangle cone bags have emerged with their unique appearance, and material selection is the key to determining whether they can handle the packaging of various products.
For fragile items that need delicate care, such as glass ornaments or electronic components, strength is the first priority. At this time, multi-layer composite material structure becomes the first choice. With high-strength polyethylene (PE) as the inner layer, it can buffer external collision force with its excellent impact resistance, like putting on a layer of "soft hedgehog armor" for the product; the outer layer is covered with polyester (PET), whose high tensile strength can resist puncture from sharp objects and prevent the bag from being scratched during transportation. The two are closely combined, both rigid and flexible, giving the product solid protection, and the flexibility of PE will not damage the items when squeezed.
In the field of food packaging, the balance requirement is even more delicate. Fresh food bags need to be flexible to facilitate stacking and storage. For example, triangle cone bags for vegetables and fruits often use low-density polyethylene, which is soft and can be deformed appropriately with the shape of the food, reducing the waste of internal space, keeping fresh and convenient for consumers to carry. Baked food focuses on moisture and oil resistance. On the basis of ensuring flexibility for packaging operations, the material incorporates nylon components with good barrier properties to prevent water vapor from penetrating and causing the food to become damp and soften, maintain the taste, and ensure that the quality of the packaged products remains the same after storage and sales.
In the packaging of industrial parts, large metal accessories require bags to be strong and durable. Polypropylene (PP) materials stand out. The modified PP can have both high strength and moderate flexibility. Its good chemical resistance can resist the erosion of residual oil stains in the processing of parts, and its strength can support the weight of heavy parts without breaking. Its flexibility makes it easier for workers to fit the bag to the contour of the parts when packing, reducing the "dead corners" of packaging and improving transportation stability.
The packaging of emerging technology products poses new challenges to material balance. With the miniaturization and precision of electronic products, the materials of triangle cone bags must be flexible to adapt to irregular shapes and strong to withstand transportation vibrations. The new thermoplastic elastomer (TPE) is compounded with high-strength fiber. TPE gives the bag rubber-like flexibility, while the fiber braid strengthens the overall strength, allowing the bag to wrap the product tightly to avoid scratches and static damage, and escort it from the production workshop to the user's hands.
In short, accurate insight into product characteristics and cleverly adjusting the proportion and combination of materials are the secrets of triangle cone bags dancing on the steel wire of strength and flexibility, thereby meeting the packaging demands of a wide range of products and consolidating their position in the packaging market.
