Date Coding and Batch Marking Guide
Date coding should produce durable, legible information at the required location and line speed. Inkjet, laser, thermal-transfer or other systems differ in substrate response, consumables, extraction and maintenance.
Practical buyer guide | Updated August 27, 2026 | Final scope must be verified through drawings, samples and agreed acceptance tests
Direct answer
What this decision means for a real filling project
Date coding should produce durable, legible information at the required location and line speed. Inkjet, laser, thermal-transfer or other systems differ in substrate response, consumables, extraction and maintenance.
This guide is part of the cluster. Read the hub when the project still needs a broader comparison.
Engineering inputs
Define the duty before comparing equipment
A useful proposal starts from agreed process and package information. These inputs keep suppliers from filling gaps with incompatible assumptions.
Send these details
- Substrate and color
- Code content and size
- Print location
- Line speed
- Environment and durability requirement
Require these checks
- Print production samples
- Test contrast and adhesion
- Challenge missing-code inspection
- Verify recipe and date rollover
Line integration
Connect the choice to upstream and downstream equipment
Project decision record
Turn the topic into four controlled project decisions
A useful guide should change the RFQ, proposal and acceptance plan. Use this record to keep the buyer, equipment supplier and site team on the same basis.
Freeze the application basis
Record substrate and color together with code content and size. Attach drawings, photos and representative samples when dimensions or product behavior affect the design.
Define rated and sustained duty
State print location and line speed. Separate nameplate rate from the sustained result expected with normal stops, changeovers and quality checks.
Control line interfaces
Mark every interface as supplier scope, buyer scope or third-party scope before the order is released.
Approve measurable evidence
Agree how to verify print production samples and test contrast and adhesion. The test plan should identify samples, duration, instruments, pass criteria and closure evidence.
Comparison sheet
Put every supplier on the same basis
| Decision area | What to state in the RFQ | What to verify |
|---|---|---|
| Product | substrate and color | print production samples |
| Package | code content and size | test contrast and adhesion |
| Performance | print location | challenge missing-code inspection |
| Operation | line speed | verify recipe and date rollover |
| Project scope | Utilities, interfaces, documents, spares, packing, shipping and support | Written inclusions, exclusions and acceptance evidence |
Verification route
Move from a claim to recorded evidence
- Approve the duty, drawings and test conditions before fabrication is treated as final.
- Use production-intent product and packaging wherever they materially affect performance.
- Record results by format, operating condition and quality criterion rather than relying on a short edited video.
- List open items, owners and closure evidence before packing and again after site commissioning.
Risk register
Resolve these risks before price becomes the deciding factor
Low quotations often hide different assumptions. A short written risk register makes technical and commercial differences visible before contract award.
| Risk | Why it matters here | Required control |
|---|---|---|
| Application mismatch | Code presence alone does not prove readability, adhesion or correct data selection. | Confirm substrate and color and test print production samples. |
| Package or format mismatch | Unapproved containers, closures, labels or tolerances can invalidate an otherwise suitable machine choice. | Freeze code content and size and verify test contrast and adhesion with production-intent samples. |
| Line imbalance | A filler cannot deliver saleable output when feeding, closing, labeling, packing or utilities become the constraint. | State print location and verify challenge missing-code inspection across the connected line. |
| Weak acceptance evidence | Put verify recipe and date rollover into the FAT and SAT plan, including owners and close-out evidence. |
Buyer questions
Answers to common RFQ and acceptance questions
When is Date Coding and Batch Marking Guide useful?
Lines printing date, lot, time, shift, QR or traceability data on containers, labels or cartons. Code presence alone does not prove readability, adhesion or correct data selection.
What details should be supplied before requesting a quotation?
Prepare the following project-specific information: substrate and color, code content and size, print location, line speed, environment and durability requirement. Drawings, photos and representative samples help the engineering review move from a budget assumption to a defined scope.
How should the proposed solution be checked before acceptance?
Use an agreed review or test plan to print production samples, test contrast and adhesion, challenge missing-code inspection, verify recipe and date rollover. Record the conditions, measurements and open actions so the result can be compared with the approved specification.
What should the supplier proposal state for bottle date coding machine?
The proposal should state the design basis, included equipment, utilities, interfaces, output conditions, change parts, documentation, spare parts, delivery boundary and acceptance method. For this topic, explicitly record substrate and color and code content and size.
What evidence should be retained after FAT and site handover?
Retain the approved specification, drawings, test conditions, measured results, alarm and safety checks, open-item register, manuals, backups, parts list and signed handover record. This guide particularly requires evidence for print production samples and test contrast and adhesion.
One-Stop Beverage Equipment Solutions
Send the liquid, bottle, output and destination
Allot Technology (Suzhou) Co., Ltd. was founded in 2019. Our roots are in new-media and online communication; since 2025, we have combined that experience with China manufacturing sourcing to introduce practical beverage and liquid-packaging equipment to global buyers honestly and clearly.