Why are most foldable water cups made of plastic?

Hello everyone, "Dong Dong Talk Cup" is here. The editor recently received an inquiry from a customer about folding water cups. Since the other party is doing export orders, they do not want to use plastic to produce the folding water cups but want to use stainless steel. http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlI would like to take this opportunity to share with you why the common folding water cups on the market are mostly made of plastic and it is rare to see folding water cups made of stainless steel. Is it because of the cost or the difficult production process?

What are the advantages of producing foldable water cups with plastic materials?

1. Light weight: The plastic material itself has a low density, which makes the plastic folding water cup have a significant advantage in portability. http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlUsually foldable water cups are only carried when going out. A stainless steel foldable water cup with the same structure and capacity is more than ten times heavier than a plastic water cup.

2. Low cost: The cost of producing the same type of folding cups made of plastic is much lower than that of stainless steel.

3. Strong plasticity: Plastic has excellent plasticity and is easy to be molded through mold injection, which can easily realize complex and diverse folding designs. http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlIn addition, plastic material has stronger elasticity than stainless steel material, and each link can have good sealing performance.

What are the difficulties in producing foldable water cups from stainless steel?

1. Material properties: Stainless steel has high hardness and strong rigidity. Although these characteristics make stainless steel water cups sturdy and drop-proof, they also increase the difficulty in producing folding water cups. http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlDue to strong rigidity and poor elasticity, the stainless steel accessories are required to be more precise when matching the accessories of the folding water cup. Once a certain accessory is deformed or has a large error, it will not only make the folding water cup unable to be fully unfolded, but it is also more likely to cause the water cup to leak.

2. Complex surface treatment changes: Folding water cups usually consist of 4-5 accessories. As stainless steel production accessories need to be polished, electrolyzed and other process treatments, http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlwhich requires that the final effect of each accessory is consistent, otherwise it will seriously affect the overall appearance of the water cup.

In summary, plastic dominates the folding water cup market with its own advantages, http://www.zhanyict.com/en/ProductsDetail-VB-10493.htmlwhile stainless steel folding water cups are relatively rare in the market due to many technological difficulties, resulting in high production costs and low yield rates.