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Structural Design Of Plastic Shopping T-shirt Bags

May 15, 2025 Fág nóta

Plastic shopping T-shirt bags are named for their T-shirt-like neckline and shoulder design, also known as "vest bags". The structural design makes them easy to carry, load-bearing and in line with usage habits:

I. Overall structure: vest-style handle design
Shape: The handle part is arc-shaped or "U"-shaped, similar to the neckline and shoulder contour of a T-shirt, which is convenient for fingers or arms to pass through and reduces the feeling of being squeezed.
Width: The handle width is usually 2-5 cm. The wider handle can disperse the weight and improve the comfort when bearing weight (narrow handles are easy to be squeezed, and wide handles are more labor-saving).
Connection method: The handle and the bag body are firmly connected by heat sealing or pressing technology. The connection is usually thickened or double-layered to avoid tearing when bearing weight.

2. Corner brace design

Unfolding effect: When the bag is empty, the corner brace is in a folded state, and the bag is flat for easy storage; when the corner brace is opened when loading, a rectangular or square three-dimensional space will be formed at the bottom of the bag, so that the bag can be placed upright and the volume is significantly expanded.
Increase capacity: The bottom of the traditional vest bag is a straight line edge, and the interior is "wedge-shaped" when loaded, with low space utilization; after the corner brace is unfolded, the bottom becomes a flat surface, which can accommodate more items (especially large or irregularly shaped items, such as bottled beverages, boxed goods, etc.).

3. Size adaptability

4. Degradable materials
The environmentally friendly T-shirt bag uses degradable plastic (such as PLA polylactic acid). The structural design is the same as the traditional one, but it can be naturally decomposed after being discarded to reduce pollution.

5. Advertising printing area

plastic shopping T-shirt bags