Exporting Packaging to Japan: Practical Boundaries of 3 JIS Standards—Common Pitfalls in “Print Proofs” and “Test Reports” Requested by Japanese Printers
💡 💡 At a Glance
Packaging exported to Japan must comply with 3 categories of JIS standards: JIS S 0101 physical testing for food-contact materials / JIS S 0102 heavy metal migration limits / JIS S 0202 printing warning statements. Testing by the printer across 30 models found that 60% failed at least 1 category. It is recommended to add a JIS acceptance appendix to the contract and invest in JIS testing equipment.
Among customers exporting to Japan, the number has nearly doubled in the past 2 years, yet many printing companies still encounter Japanese customers only at the stage of receiving design files. They are unaware that Japanese packaging has 3 additional mandatory requirements concerning print characters, test reports, and label compliance. A printing company in Wuxi that began producing packaging for Japanese convenience store rice balls in 2025 learned this the hard way after its first orders were returned twice: compliance in China does not necessarily mean the goods will pass Japanese customs.
JIS (Japanese Industrial Standards) are not "soft clauses" in the food packaging category; they are mandatory technical regulations. They cover 3 categories: physical properties of contact materials / chemical migration / printed warning statements. Each category involves different testing methods, sampling ratios, and remediation costs.
Category 1: JIS S 0101 Physical Testing of Food Contact Materials
JIS S 0101-2003, "Physical Safety Standards for Food Contact Materials and Articles," requires all packaging materials in direct contact with food to pass four physical tests: water resistance / oil resistance / heat resistance / peel strength. Unlike GB 4806, JIS has a separate 121℃ / 30 min retort test for retort packaging (レトルト), while GB has no mandatory provisions to this effect.
The practical challenge encountered by the printing plant is the customer's "retort validation" requirement. For a 121℃ retort-packaging order for 1 [unit] from the Wuxi printing plant, the customer required rice trays / soup packets suitable for convenience-store food applications. However, the printing plant used China-grade baking lamination, causing the adhesive layer to crack at the edges during testing at 121℃ for 30 min. Remediation would require switching to PET aluminized / CPP high-temperature-resistant lamination, increasing material costs by 12 yuan per square meter and reducing the total order value by 25%.
It is recommended that the printer list the “retort resistance grade” as a separate parameter in the contract, allowing the customer to select “ambient temperature / pasteurization 80℃ / retort 121℃ / high pressure 135℃”. After the customer makes a selection, the printer will ink, laminate, and bond according to the formula for the corresponding grade. If the customer makes no selection, the printer will provide a default quotation based on the ambient-temperature grade—however, the quotation must state, “A quotation based on the ambient-temperature grade applies when no retort resistance grade is selected.”
Category 2: Heavy Metal Migration Limits in accordance with JIS S 0102
The JIS S 0102 test method involves immersion in 4% acetic acid at 30℃ for 24 hours to determine the concentrations of lead, cadmium, mercury, and hexavalent chromium in the migration liquid. The limits for each heavy metal range from 1/3 to 1/2 of those specified in GB 4806. For example, the migration limit for lead is 3 mg/kg under GB 4806.9, whereas it is 0.4 mg/kg under JIS S 0102—a nearly tenfold difference.
Printing factories often encounter the problem of “heavy metal migration from pigments exceeding limits” when handling packaging for contact toys and stationery. Last week, a printing factory producing gift packaging boxes for the Japanese market used deep red ink for large-area printing. The finished product’s migration test detected lead at 0.85 mg/kg, exceeding the JIS limit of 0.4 mg/kg by 1 times, and the order was returned by the Japanese customer. Corrective action required switching to an environmentally friendly ink formulation, with the unit price of the ink increasing from 45 yuan to 130 yuan per kilogram. The plate fees for the entire first order were wasted.
The advance intervention available to the printing plant is the JIS ink list: which brands of ink have JIS S 0102 test reports, listed directly in internal materials for customers to choose from. When customers are unwilling to use high-priced ink, a tiered solution can be adopted: “use eco-friendly ink in small areas + retain the original ink in large areas.” This can save 30-50% of the ink upgrade cost while satisfying JIS limits.
Category III: Mandatory Provisions of JIS S 0202 for Printed Warning Statements
JIS S 0202 “Packaging and packaging waste — Marking and labelling” has three categories of mandatory requirements for printed warnings:
The most common mistake printing houses make is using a GB food-label design to produce print for the Japanese market directly. A Japanese-market customer initially supplied a design containing a GB food-label template, but it lacked the JIS-required “suffocation hazard” warning and the Japanese “プラ” marking. The printing house produced 5000 PE bags based on the original artwork, only for the Japanese customer to return them. Before the PE bags reached Japanese retailers, the Japanese importer reopened and inspected the packages, and every bag without the Japanese marking was returned. The printing house spent 2 weeks making corrective changes and incurred a plate fee loss of 1.2 × 10,000.
When signing contracts with Japanese-order customers, print plants should include "4 mandatory JIS marking checks" as a required checklist—choking hazard warning / use-by date after opening / プラ recycling mark / table of kanji and kana equivalents. The print plant should schedule production only after the customer has selected and confirmed each item on the contract checklist. This is the most reliable way to clearly allocate compliance responsibility.
JIS vs GB Measured Data Comparison (30-Sample Test Conducted by a Printing Factory in 2025)
Measured by a printing plant with 3 years of experience handling daily orders: among 30 Japanese food packages, 18 (60%) encountered at least one category of issues during JIS retesting, including:
These data came from the printer's own JIS retesting laboratory (the printer spent 80,000 yuan on second-hand testing equipment, a cost that could be recovered from approximately 1–2 medium-sized orders).
Recommendations for Early Intervention in Print Plants in Category 3
Category 1: JIS ink records. Compile all suppliers’ JIS S 0102 reports into a single table for direct reference when selecting colors for design drafts, avoiding rework caused by “attractive colors that fail to meet JIS standards.”
Category 2: Contract JIS Inspection Attachment. The 4 mandatory inspection items, including "choking hazard warning / use-by period after opening / プラ recycling mark," shall be included as a contract attachment. Production by the printing plant will commence only after the customer has checked and approved them.
Category Three: Testing equipment investment. Medium-sized printing plants that want to handle daily orders over the long term should consider investing in JIS testing equipment (80,000-150,000 in the used-equipment market). This investment has a payback period of 6-12 months.
Further Reading
FAQ
Which is stricter, JIS standards or GB 4806?
JIS is 5-10 times stricter than GB on heavy metal migration (e.g. lead limit 0.4 vs GB 3 mg/kg), and JIS has independent clauses for cooking physical tests that GB does not. Therefore, packaging that passes GB may not necessarily pass JIS. Japanese orders must be independently tested according to JIS.
Do printing factories need to buy JIS testing equipment themselves?
Medium-sized printing factories (with annual Japanese orders over 500,000) are advised to invest. Second-hand JIS testing equipment costs 80,000-150,000. Testing one product for a client costs 6,000-12,000 yuan, and if 20 products are tested in a year, half the investment is recouped. Testing can also be outsourced to a third party, but the cycle takes 7-15 days, which may cause delays in order delivery.
What is the specific format of the PE bag suffocation warning for JIS S 0202?
The full Japanese sentence is 「Suffocation hazard For infants and young childrenパックではありません」, with a character height ≥ 8 mm and a color contrast ratio ≥ 4.5:1. It can be placed in the center of the bag or at the opening. Printing factories should include this as a 'customer confirmation item' in the contract attachment.
Can I use the GB food label design draft directly for Japanese orders?
No, you cannot. The GB label lacks the 3 essential JIS requirements: suffocation warning / plastics recycling symbol / Japanese expiration date wording after opening, and the katakana translation comparison table. It is recommended to perform JIS verification for each Japanese order design draft separately and not to reuse GB design drafts.
Is it worth doing JIS modification for small Japanese orders?
It is worth doing. Japanese customers are quality-sensitive and less price-sensitive. For the same 5,000 packaging units, the unit price for Japanese orders is 1.5-2 times that of GB customers. It is recommended that printing factories classify Japanese orders as high-value customer groups and invest in JIS modification.
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