PCR means Post Consumer Recycled.   GRS.OBP.UL2809 certification. 

PIR refers to Post-Industrial Recycled Plastics.

While both PIR and PCR (Post-Consumer Recycled Plastics) belong to the category of recycled plastics, they differ significantly in raw material sources, processing difficulty, and other aspects. The specific differences are as follows:

1. Raw Material Sources: PCR comes from discarded plastics after consumer use, such as mineral water bottles, used plastic tableware, and discarded plastic toys. The sources are diverse and widespread. PIR comes from factory scraps, injection molding regrind, and defective products. The recycling channels are fixed, and it only circulates within the factory.

2. Processing Difficulty: Due to the diverse sources, PCR requires meticulous sorting of different plastic materials and deep cleaning to remove various stains and impurities. The processing is complex and technically demanding. PIR has a simpler composition and fewer impurities. It can usually be re-granulated after simple crushing and cleaning, making the processing simpler.

3. Material Quality: The performance and quality of PCR fluctuate greatly between different batches, resulting in poor quality stability. PIR has strict quality control at the production source, ensuring stable quality. The performance of recycled PIR is closer to that of virgin material.

4. Environmental Protection and Market Value: PCR significantly reduces household plastic waste entering the environment, aligning with global plastic reduction policies, thus possessing greater environmental significance and market value. PIR focuses on the recycling of industrial raw materials; while also environmentally friendly, it primarily helps companies reduce production costs, with its environmental impact relatively limited to the industrial sector.

5. Application Scenarios: PCR is often used to manufacture products with less stringent performance requirements, such as daily chemical packaging, express delivery bags, and recycled textile fabrics. PIR is suitable for high-end electronic components, precision injection molded products, and other applications requiring high material performance and precision.