Separate three questions
The phrase “PCR bottle” leaves several questions open. Record the underlying polymer, the stated origin of the recycled feedstock and the component-level basis for the percentage. Ask the supplier to distinguish post-consumer feedstock from production regrind in the supporting documents.
| Evidence | Define |
|---|---|
| Base resin | Polymer and grade |
| Percentage basis | Component and weight scope |
| Origin and batch | Documentation scope |
| Appearance | Approved reference and tolerance |
Agree an appearance window
Compare physical examples under an agreed viewing setup. Discuss base tint, clarity and acceptable appearance variation before approving decoration. A retouched image is useful for direction but should not become the sole production acceptance reference.
Check documentation and function separately
Request the material declaration, content claim and traceability evidence. Review these alongside the actual filled pack. Feedstock documentation explains the material claim; it does not by itself establish dispensing performance, formula compatibility or the acceptability of a marketing claim.
Your Project Checklist
- Name the polymer and component scope
- Define the content calculation basis
- Retain appearance and evaluation records
Frequently Asked Question
Is a higher PCR percentage always preferable?
Assess functionality, supply consistency and claim evidence together.
References and Editorial Note
The resources below provide technical background. The purchasing questions and checklists are compiled by 樽宇包装. Confirm project-specific decisions through drawings, technical evaluation and approved samples.
Sources checked: 19 October 2026