--- title: "Paper Napkin Supplier: How to Check Grease Show-Through?" canonical_url: "https://tissuepapersupplier.com/paper-napkin-supplier-grease-showthrough/" author: "Tracy Zhang" publisher: "Weifang Sansheng Paper Co., Ltd." language: "en-US" status: "publish" modified: "2026-10-26T07:44:58Z" source_of_truth: "canonical HTML" --- # Paper Napkin Supplier: How to Check Grease Show-Through? B2B procurement · Buyer guide A paper napkin supplier should test the finished fold with a defined oil dose and contact time, then record stain visibility on the public-facing side and any transfer to the table surface separately. Compare the candidate with an approved reference under the same lighting and backing. A water-absorption result does not predict grease show-through, and a clean appearance does not establish food-contact compliance. This is a buyer-defined appearance and transfer screen for a specified napkin use. No Sansheng grease-test result or food-contact approval is claimed. By [Tracy Zhang](/tracy/) · For foodservice distributors and hospitality brands · Prepared October 23, 2026 Send the exact SKU, buying destination and inspection question you need reviewed. [Request a Same-Spec Review](https://tissuepapersupplier.com/contact-tissue-paper-supplier/) [WhatsApp +86 157 6268 3071](https://wa.me/8615762683071?text=Hello%20Tracy%2C%20please%20review%20our%20tissue%20product%20specification%20and%20sample.) [Review the relevant Sansheng product](https://tissuepapersupplier.com/paper-napkin-supplier/) **Reusable procurement data** - [JSON article package](https://tissuepapersupplier.com/ai-article-packages/paper-napkin-supplier-grease-showthrough.json) - [Markdown article file](https://tissuepapersupplier.com/ai-article-packages/paper-napkin-supplier-grease-showthrough.md) ![Paper napkin supplier: wrapped napkin packs beside white, cream and pink folded napkins](https://tissuepapersupplier.com/wp-content/uploads/2026/09/ss-10-paper-napkin-supplier-odor-transfer-featured.webp) *Illustrative image: Finished napkin colors and folds should be recorded before a comparison.* ## Direct answer A paper napkin supplier should test the finished fold with a defined oil dose and contact time, then record stain visibility on the public-facing side and any transfer to the table surface separately. Compare the candidate with an approved reference under the same lighting and backing. A water-absorption result does not predict grease show-through, and a clean appearance does not establish food-contact compliance. ## Define the visible side and use setting Record napkin size, ply, embossing, print coverage and fold. Mark the side visible to a diner and the side touching food or hands. The paper napkin supplier should agree the table color and lighting before testing, because a stain may be more visible on a white print area or against a dark backing. ![Colored napkin samples beside clean empty glass jars](https://tissuepapersupplier.com/wp-content/uploads/2026/09/ss-10-paper-napkin-supplier-odor-transfer-body-1.webp) *Illustrative image: Different napkin samples need the same backing and lighting.* ## Apply a repeatable grease challenge Select production-intent napkins from identified packs and use one defined oil or greasy food simulant, dose, temperature, weight and contact time. Keep a dry control and an approved competitor or signed reference if available. Apply liquid at the same location relative to print and fold. Do not change the challenge after seeing a result. ![Wrapped napkins, loose sheets and a piece of corrugated board](https://tissuepapersupplier.com/wp-content/uploads/2026/09/ss-10-paper-napkin-supplier-odor-transfer-body-2.webp) *Illustrative image: A loose napkin and sealed pack can be retained as controls; no grease result is shown.* ## Report appearance and transfer separately Photograph the visible face at fixed intervals, then inspect the back and a clean table witness. Record stain area, color change and any transferred oil using an agreed visual grade or measurement. Include replicate napkins across packs. A napkin may hide a stain yet still transfer oil, or show a stain without transfer; these are different buyer decisions. ![Protected napkin packs beside loose colored reference samples](https://tissuepapersupplier.com/wp-content/uploads/2026/09/ss-10-paper-napkin-supplier-odor-transfer-body-3.webp) *Illustrative image: Keep pack identity and printed reference with the final appearance decision.* ## Set the purchase limit Agree an appearance reference for the actual hospitality setting and a separate surface-transfer limit. Recheck after changing furnish, ply, embossing, print, coating or fold. If food-contact status is requested, review applicable material evidence for the destination market separately; this simple observation cannot establish regulatory compliance. ## Buyer comparison record | Check | Record | Buyer purpose | | --- | --- | --- | | Napkin | Ply, print and fold | Match intended format | | Challenge | Oil, dose and time | Repeat the contact | | Visible side | Stain area and contrast | Judge table appearance | | Witness | Oil reaching the surface | Judge transfer | ## Sansheng product evidence and its limits The linked Sansheng page identifies the relevant product or material context. The reused images are illustrative product-format references, not proof of the test, certification, shipment or performance discussed here. No identified Sansheng lot record was supplied for this article. Request an exact SKU sample and its supporting record before approving an order. ## What should buyers ask the paper napkin supplier? - Finished napkin packs and signed appearance sample - Oil dose, contact and backing protocol - Replicate visible-face and witness photographs - Separate appearance and transfer limits Send the paper napkin supplier your intended use, destination and required acceptance decision. [Paper Napkin Supplier: How to Check Odor Transfer?](https://tissuepapersupplier.com/paper-napkin-supplier-odor-transfer/) [Paper Napkin Supplier: How to Assess Dry Ink Rub-Off?](https://tissuepapersupplier.com/paper-napkin-supplier-dry-ink-rub/) [Printed Paper Napkin Supplier: Which Ink Records Matter?](https://tissuepapersupplier.com/printed-paper-napkin-supplier-ink-records/) ## Questions buyers also ask ### Is grease show-through the same as oil absorption? No. Absorption, visible staining and transfer to the table are different outcomes. ### Can a water test qualify grease appearance? No. Water and oil wet the sheet differently. ### Does a clean photo prove food-contact compliance? No. Regulatory evidence must address the actual material and market. ## Sources and scope notes - [ISO 12625-8:2010](https://committee.iso.org/standard/53425.html?browse=tc) **Supports:** Defines water-absorption time and capacity for tissue. **Limit:** Does not measure grease show-through. - [Sansheng paper napkin product page](https://tissuepapersupplier.com/paper-napkin-supplier/) **Supports:** Identifies finished napkin product context. **Limit:** Does not provide a grease-test result. Source scope checked October 23, 2026. Illustrative images do not document a Sansheng test, certified SKU or customer order. ## Request an identified sample review Send the paper napkin supplier your exact SKU, approved sample, buying destination and evidence requirement. The record can then be matched to the decision before a quote or release. [Send Your Specification](https://tissuepapersupplier.com/contact-tissue-paper-supplier/) [WhatsApp +86 157 6268 3071](https://wa.me/8615762683071?text=Hello%20Tracy%2C%20please%20review%20our%20tissue%20product%20specification%20and%20sample.) > This Markdown file is generated from the canonical HTML article and is not an independent source.