| Product fit | Clear, colored, printed, or patterned PET tape; roll width and length; core size; total thickness; backing-film and adhesive details. | Product specification sheet, dimension drawing, and samples made to the proposed construction. | Confirm every dimension and material matches the journal artwork, dispenser, and packaging requirements. Do not compare thickness figures unless suppliers define what is included. |
| Adhesion | Initial tack, peel adhesion, and holding power on the intended paper, coated paper, and other target surfaces. | Test results with the test surface, application pressure, dwell time, peel angle, and test speed stated. ASTM D3330/D3330M is a recognized method for peel adhesion of pressure-sensitive tape. | Judge performance on the actual journal materials. Agree on an application-specific pass range before ordering; a single peel value does not establish suitability for every paper surface. |
| Residue and removability | Whether tape lifts cleanly, leaves adhesive residue, stains paper, or damages printed surfaces after the intended use period. | Application trials on representative paper stocks, including the planned dwell time and removal method; retain dated samples or photographs. | Use the real page stock and ink or coating. Record results after both short and longer dwell periods when users may leave tape in place. |
| Film strength | Backing-film thickness, tensile behavior, elongation, tear resistance, and ease of cutting or hand tearing, as relevant to the product. | Film or tape technical data and test method. ASTM D882 is commonly used for tensile properties of thin plastic sheeting. | Check that samples unwind and cut cleanly without unwanted stretching, splitting, or edge distortion. Compare results only when specimens and methods are comparable. |
| Appearance and print | Color consistency, transparency, print registration, surface finish, pattern alignment, and visible defects. | Pre-production proof, approved color reference, sample roll, and written inspection criteria for the finished tape. | Approve a signed or otherwise controlled reference sample. Check multiple rolls and positions across a roll, not just a single short sample. |
| Unwinding and roll quality | Unwind force, telescoping, blocking, wrinkles, edge quality, roll tightness, and consistency of winding. | Production samples and a documented roll-inspection checklist; test rolls with the intended dispenser if one will be used. | Run a practical dispensing trial. Define acceptable roll defects and packaging protection before approving mass production. |
| Quality management | Documented production controls, traceability, inspection records, change management, and handling of nonconforming product. | Current quality-system documentation, sample inspection report, lot identification example, and corrective-action process. | Verify certificate scope and validity where certification is claimed. A quality certificate supports supplier review but does not replace product testing. |
| Chemical compliance | Compliance requirements for the intended sales markets and the specific tape construction, including film, inks, and adhesive. | Material declarations and relevant test reports tied to the product or material grade. Check applicable requirements such as REACH or RoHS only where relevant to the product and market. | Confirm the report covers the supplied construction and current requirements. Avoid relying on a generic declaration that does not identify its scope. |
| Capacity and delivery | Sample lead time, production lead time, minimum order quantity, monthly capacity, shipping terms, and peak-season planning. | Written quotation with order assumptions, production schedule, capacity statement, and proposed shipment terms. | Compare like-for-like order quantities and delivery terms. Confirm lead times in writing and ask how delays or changes are communicated. |
| Cost and total value | Unit price, tooling or setup charges, printing costs, packaging, freight, duties, and costs of inspection or rejected goods. | Itemized quotation with currency, validity period, price breaks, packaging details, and payment terms. | Compare total landed cost and specification compliance rather than unit price alone. Confirm whether quoted prices include custom printing or other one-time charges. |
| Communication and service | Response clarity, technical support, sample handling, complaint response, and ability to manage specification changes. | Written answers to a standard request for quotation, sample records, and an agreed process for claims and corrective actions. | Score suppliers consistently on response completeness, accuracy, and follow-through—not simply on response speed. |
| Suggested scoring | Apply the same weighted score to every candidate after document review and sample testing. | Score each area from 1 to 5: 1 = does not meet needs; 3 = meets core needs with open issues; 5 = fully verified against agreed requirements. | Set category weights before reviewing quotations. Treat unresolved safety, compliance, or critical performance issues as approval blockers, regardless of total score. |