Do PLA spoons change color over time?

As a supplier of PLA spoons, one question that often comes up from our clients is whether PLA spoons change color over time. This is a valid concern, as the appearance of the cutlery can affect the overall dining experience and the perception of quality. In this blog post, I'll delve into the science behind PLA spoons and explore the factors that can lead to color changes.

Understanding PLA Spoons

PLA, or polylactic acid, is a biodegradable thermoplastic polyester derived from renewable resources such as corn starch or sugarcane. It has gained popularity in recent years as an eco-friendly alternative to traditional plastic cutlery. PLA spoons are known for their clean and modern look, making them a great choice for various events, from casual picnics to formal dinners.

The Potential for Color Change

Like any material, PLA spoons can be subject to color changes under certain conditions. However, it's important to note that PLA is generally a stable material, and significant color changes are not common under normal use and storage conditions.

1. Exposure to Light

One of the primary factors that can cause color changes in PLA spoons is exposure to light, especially ultraviolet (UV) light. UV rays can break down the chemical bonds in PLA, leading to a process called photodegradation. Over time, this can cause the spoons to yellow or become discolored. This is similar to how other plastics and polymers can degrade when exposed to sunlight for extended periods.

To minimize the impact of light on PLA spoons, it's recommended to store them in a cool, dark place. If they are displayed in a retail setting, using UV-blocking display cases can help protect them from harmful light.

2. Temperature and Humidity

Extreme temperatures and high humidity can also affect the color of PLA spoons. High temperatures can cause the material to soften and potentially undergo chemical changes, which may result in color alterations. Similarly, high humidity can create a moist environment that promotes the growth of mold or bacteria, which can also lead to discoloration.

It's best to store PLA spoons in a dry environment with a moderate temperature. Avoid leaving them in direct sunlight or in areas prone to high humidity, such as near a sink or in a damp basement.

3. Chemical Exposure

Exposure to certain chemicals can also cause color changes in PLA spoons. For example, contact with strong acids or alkalis can react with the PLA, altering its chemical structure and appearance. It's important to keep PLA spoons away from harsh cleaning agents and chemicals to maintain their original color.

When cleaning PLA spoons, use mild, biodegradable detergents and warm water. Avoid using abrasive cleaners or scrubbers that can scratch the surface of the spoons, as this can also make them more susceptible to color changes.

Our Quality Assurance Measures

At our company, we take several steps to ensure that our PLA spoons maintain their color and quality over time.

1. High - Quality Raw Materials

We source only the highest quality PLA resin for our spoons. Our suppliers adhere to strict quality control standards, ensuring that the raw material is pure and free from impurities that could contribute to color changes.

2. Advanced Manufacturing Processes

Our manufacturing processes are designed to produce spoons with consistent quality. We use state - of - the - art injection molding techniques that ensure uniform thickness and density of the spoons, reducing the likelihood of color variations.

3. Quality Testing

Before our PLA spoons are shipped to our customers, they undergo rigorous quality testing. We test for color stability under different conditions, including exposure to light, temperature, and humidity. Only spoons that meet our strict quality standards are approved for sale.

Our Product Range

In addition to our standard PLA spoons, we also offer a variety of related products. You can check out our PLA Fork for a complete set of eco - friendly cutlery. Our Eco Friendly Spoons are designed with the environment in mind, providing a sustainable option for your dining needs. And if you're looking for a slightly different material, our Cpla Spoon offers a similar look and feel with its own unique properties.

Contact Us for Procurement

If you're interested in purchasing our PLA spoons or any of our other biodegradable cutlery products, we'd love to hear from you. Whether you're a restaurant owner, an event planner, or a retailer, we can provide you with high - quality products at competitive prices. Contact us today to discuss your procurement needs and start a partnership that benefits both your business and the environment.

References

• "PLA: A Versatile Biopolymer for Sustainable Applications" - Journal of Polymer Science
• "The Effects of Environmental Factors on the Degradation of Polylactic Acid" - Environmental Science and Technology
• "Quality Control in Biodegradable Plastic Manufacturing" - International Journal of Plastics Technology