Quality, testing & patents
Quality control and technical documentation
Closure evaluation considers dimensional fit, sealing, opening performance and the intended filling and storage conditions. Inspection requirements and available supporting documents are reviewed for each project.
IP documents displayed
4 patent & copyright documents
Three Chinese utility-model patents and one software copyright registration. The recorded rights holder is 淄博银德环保科技有限公司 (Zibo Yinde); these are not presented as registrations owned by NUOFAN.
Product compliance documentation is addressed separately below.
Patents & registrations
Patent and software registration references
- ZL 2022 2 3033530.5
Utility-model patent — tamper-evident bottle cap
Granted by CNIPA on 28 March 2023, publication CN 218752452 U. Registered scope: a tamper-evident bottle cap.
- ZL 2022 2 2829413.3
Utility-model patent — high-precision cap ring-slitting machine
Granted by CNIPA on 17 February 2023, publication CN 218488588 U. Registered scope: cap ring-slitting equipment.
- ZL 2022 2 2829412.9
Utility-model patent — feed assembly for cap moulding machines
Granted by CNIPA on 28 March 2023, publication CN 218748806 U. Registered scope: a feed assembly for cap moulding equipment.
- 2024SR1475743
Software copyright — plastic product design and manufacturing platform
Registered with the Copyright Protection Centre of China on 9 October 2024, certificate 软著登字第13879616号.
Documentation status
Food-contact and quality-system documentation
Please identify the destination market and required documents at the enquiry stage. Any additional testing scope, cost and schedule must be confirmed before an order is accepted.
- 01
No third-party food-contact report yet
Third-party overall and specific migration reports are not currently available. Testing requirements are reviewed against the material, food type, contact conditions and destination market. Laboratory scope, cost and schedule are subject to agreement.
- 02
Food-contact compliance documents
We do not currently provide an EU 10/2011 declaration of compliance or LFGB test report, and do not claim FDA compliance. A material description alone does not establish compliance of the finished article for its intended use.
- 03
Quality-system certification
NUOFAN does not currently hold ISO 9001 or BRC certification. Please state any mandatory supplier-certification requirements before proceeding with product qualification.
Inspection planning
Inspection scope and acceptance criteria
The items below describe inspection and testing requirements for review. Methods, sampling plans and acceptance criteria must be agreed for the selected product. This table does not report completed tests or certify product performance.
| Test | Method | Requirement | Where |
|---|---|---|---|
| Removal torque | Agreed torque measurement procedure | Within the band agreed for your neck and filling line | Inspection plan to be agreed |
| Application torque | Agreed torque measurement procedure | Set so the cap seals without cracking the finish | Inspection plan to be agreed |
| Tamper band bridge strength | In-house method | Opening behaviour to the approved band design | Inspection plan to be agreed |
| Leakage, inverted | In-house method | Leakage criteria, duration and conditions to be agreed | Inspection plan to be agreed |
| Dimensional check | Gauge and caliper against the drawing | Within the tolerance on the approved drawing | Inspection plan to be agreed |
| Drop test, filled unit | Agreed filled-container drop procedure | No leak or fracture after drop | Test arrangement to be confirmed |
| Top load | Agreed container compression procedure | No collapse below the agreed load | Test arrangement to be confirmed |
| Overall migration | Applicable market method and contact conditions | Applicable overall migration limit | No third-party report currently available |
| Specific migration | Applicable substance restrictions | Within the SML for each listed substance | No third-party report currently available |
| Heavy metals | Applicable material and market requirements | Below the declared limits | No third-party report currently available |
Torque requirements apply to the bottle and closure assembly. The neck finish, sealing system, capper settings, filling temperature and storage conditions must be considered before a working range is approved.
Process control
Material, dimensional and packing requirements
The approved product specification defines material selection, dimensional requirements, assembly details and packing. Inspection records and any additional testing should be specified during order review.
Material specification
Catalogue materials vary by component, including PP caps and handles, PET preforms and PS or PVC decorative over-caps. Resin grade, colourants and intended contact conditions require review for the selected product.
First-off approval
First-off samples are evaluated against the approved drawing and sample. Critical dimensions and tolerances form part of the production specification.
Closure performance requirements
For screw closures, application and removal torque are evaluated with the intended bottle. Sampling frequency and acceptance limits are defined in the inspection plan.
Packing requirements
Packing liners, carton quantities and handling requirements are specified to protect components during storage and transport.
Documentation request
Discuss documentation and testing requirements
Provide the destination market, packaged contents and conditions of use. We will review available information and the scope of any additional documentation or laboratory work.