Runjia Paper · Buyer Guide
A printed wrapper may look clean as a loose sheet while a stacked or tightly wound batch transfers colour to the reverse face. A candy paper supplier should examine that contact condition. This guide isolates ink set-off in stacks and reels from print rub, print odor and overall migration; those are separate questions.
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Direct Answer
Identify the exact printed face and intended food-facing face, then take marked samples from the approved production construction. Hold them in the agreed stack or reel contact geometry under defined time, temperature, pressure and humidity. Inspect the face that will contact candy, compare it with an unprinted control and record any visible transfer using the buyer-approved method. If food-contact safety is in scope, request the relevant product-specific assessment as well. A clean visual result does not prove migration compliance.
Quick takeaway: Test face-to-face contact under the intended packing and storage conditions.
Quick Decision Box
| Buyer decision | Direct guidance |
|---|---|
| Best suited for | This check suits confectionery brands and converters purchasing printed twist-wrapper paper that will be stacked, wound or packed under pressure. |
| Check first | Printed-to-reverse face in the actual stack or reel |
| Main sourcing risk | Do not approve printed stock from an unstacked proof sheet alone. |
| Ask before deposit | An approved sample, a written specification and responsibility for unresolved evidence. |
Is This Candy Paper Supplier Review Right for Your Market?
This check suits confectionery brands and converters purchasing printed twist-wrapper paper that will be stacked, wound or packed under pressure. It is most useful when the print faces another sheet before cutting or use. A candy paper supplier needs the artwork, ink and coating construction, pack geometry and expected storage window. It does not establish twist retention, odor, rub resistance or legal food-contact clearance.
Which surfaces actually touch?
Draw the wrapper cross section and mark the printed face, reverse face and intended food-facing face. Show the winding or stacking order and any interleaf. Print on the outer face can touch the inner face of the next sheet or turn in a reel. Inspect the receiving face after contact, not only the attractive printed side. Assign an owner to this specification decision.
How should samples be conditioned?
Agree the sample identity, number of sheets or reel turns, contact pressure, storage time, temperature and humidity before the trial. Include the actual pack format and a retained unprinted control. A candy paper supplier should identify where samples came from in the run; a loose proof sheet does not reproduce a compressed stack. Keep this observation with the approved sample record.
What should the inspection record contain?
Use consistent lighting and an agreed reference panel to examine the receiving face. Photograph the marked contact area, record whether transfer is visible and note whether the result repeats across sampled positions. If quantitative colour or chemical work is required, specify the method, laboratory and acceptance criterion separately. Do not label a rub mark as set-off without confirming the contact route. Use identical conditions for a fair comparison.
When does the result need repeating?
Recheck after changes in ink, varnish, coating, drying, substrate, stacking pressure or storage. A candy paper supplier should retain the approved specimen and trace each observation to the printed lot. If the first check fails, isolate the affected lot and investigate before using another passing sample as evidence for the whole run. Request any deviation in writing before purchase approval.
What Should Comparable Samples Show?
| Control point | What to request | Why it matters |
|---|---|---|
| Contact geometry | Printed-to-reverse face in the actual stack or reel | Recreates the transfer path |
| Condition | Time, temperature, humidity and pressure | Makes repeat trials comparable |
| Receiving face | Marked inspection area and unprinted control | Shows whether colour reached the intended food-facing face |
Why Do Quotations Differ?
A candy paper supplier quotation must be compared on one written specification. Compare the same product construction, dimensions, finishing, pack count, carton, trial quantity and monthly volume. Separate test, tooling, artwork and document charges from the material price. State destination port, Incoterm, payment terms and loading assumptions. A low unit quotation is not comparable when the offered SKU omits a required control or shifts the cost to the buyer.
Which Buyer Calculation Helps?
Illustrative candy paper supplier sampling: if 3 of 30 identified contact pairs show visible transfer, the observed sample rate is 10%. This is arithmetic, not a Runjia test result or a proposed acceptance limit. Agree a lot decision rule before sampling. Keep the denominator consistent across every candy paper supplier offer.
When Should the Buyer Pause?
- Do not approve printed stock from an unstacked proof sheet alone.
- Do not treat absence of visible colour as proof of migration compliance.
- Do not substitute a rub or odor test for a defined contact set-off check.
What Belongs in the RFQ?
| Field | Buyer instruction |
|---|---|
| 1 | candy product format, GSM or thickness, coating or material construction and intended use |
| 2 | Roll or sheet size, core or perforation, approved sample and exact SKU ID |
| 3 | Pack count, carton dimensions, artwork, barcode and retained reference |
| 4 | Trial and monthly volume, MOQ by SKU, target date and loading estimate |
| 5 | Destination port, Incoterm, payment term and required document scope |
Export Manager Note
For this candy paper supplier program, freeze the technical decision, approved sample and written specification before deposit. A passing sample does not guarantee every repeat lot. Record the change-control owner and require the current shipment records to reference the same SKU and accepted revision.
Need a Same-Spec Review?
Send the candy paper supplier format, construction, dimensions, packing, volume, destination, sample ID and unresolved decision. Request a comparable offer with deviations listed in writing.
Copyable RFQ Wording
Please quote the attached candy paper supplier specification and identify any deviations. Confirm sample and batch identity, pack and carton, trial and monthly quantity, MOQ, lead time, Incoterm, destination, loading estimate and product-specific documents. Separate verified test results from unverified statements. Do not substitute material or artwork without written approval.
Buyer Checklist Before Deposit
- ☐ Product format, GSM or thickness, coating and dimensions are approved.
- ☐ Core, perforation or cutter/shape details match the sample.
- ☐ Pack count, carton, artwork and barcode are frozen.
- ☐ Sample ID, acceptance method and retained benchmark are recorded.
- ☐ MOQ, trial and monthly volume, target date and loading are agreed.
- ☐ Destination, Incoterm, payment and document scope appear in the PI.
- ☐ Importer compliance owner and change-control contact are named.
What Can the Evidence Actually Prove?
An identified candy paper supplier statement, application trial, certificate, food-contact report and batch record have different purposes. Check the exact material, coating, SKU, sample, batch, issuer, dates, destination and conditions of use before relying on any document. Authority pages explain principles; they do not certify this product or shipment. Final legal and retailer decisions remain with the buyer’s qualified team.
| Source | Supports | Does not prove |
|---|---|---|
| EU Regulation (EC) No 2023/2006, Annex | Addresses transfer from printed non-food-contact surfaces to food-contact surfaces by set-off in stacks or reels. | It is a general GMP rule; it does not approve a Runjia ink system, wrapper or production lot. |
| ISO 186:2002, paper and board sampling | Provides representative lot sampling principles for paper and board testing. | It does not specify a set-off acceptance limit, an ink migration result or a machine acceptance rule. |
How Should the Candy Paper Supplier Decision Be Handed Off?
Send the candy paper supplier the approved artwork, printed construction, roll or stack layout, intended food-facing side and destination requirements. Keep the marked reference and trial conditions with the SKU and lot record.
Related Runjia Product Resources
Use the candy paper supplier buying question to review the matching product pages. Printed candy wrapper approval. Candy wrapper storage release.
Frequently Asked Questions
Is set-off the same as print rub?
No. Set-off is transfer during face-to-face contact; rub tests a different mechanical action.
Which face should be inspected?
Inspect the face that contacted print and identify whether it is intended to face the food.
Can a clean visual check prove food safety?
No. Review the exact product and destination evidence separately.
Does storage time matter?
Yes. State the time and other contact conditions before comparing results.
When should the check be repeated?
Repeat it after relevant ink, substrate, drying, winding or packing changes.
Request a Comparable Quote From Runjia
Send the candy paper supplier format, dimensions, construction, approved sample ID, intended use, packing, monthly volume, destination and document list.
Send Specifications: WhatsApp +8618605361201Send Runjia Your RFQ
Source Notes
[1] EU Regulation (EC) No 2023/2006, Annex. Source role: Addresses transfer from printed non-food-contact surfaces to food-contact surfaces by set-off in stacks or reels. Support status: linked primary source checked. Scope note: It is a general GMP rule; it does not approve a Runjia ink system, wrapper or production lot.
[2] ISO 186:2002, paper and board sampling. Source role: Provides representative lot sampling principles for paper and board testing. Support status: linked primary source checked. Scope note: It does not specify a set-off acceptance limit, an ink migration result or a machine acceptance rule.
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