Fix Color References and Specification Data First

Color control starts before telling the factory which color to use. Combine color codes, physical samples, paint areas, texture, gloss, and transparency in the same specification so sampling and mass production use the same judgement basis.

• Use PANTONE / DIC together with physical color samples
• Separate base PVC color, spray color, and print color
• Define matte, semi-gloss, glossy, or other surface finish
• Mark color split lines and gradient areas on the drawing

Phone photos or e-commerce images are not reliable production references because monitor and lighting conditions vary. Fix production colors with both codes and physical samples.

Align Standard Light and Review Conditions

The same sample can look different under daylight, fluorescent light, warehouse light, and photography lights. For sample review, define the light source, background, viewing distance, and photo conditions with the factory.

• Choose a light source such as D65 or TL84 based on the sales environment
• Use white or neutral gray backgrounds for color comparison
• Check physical samples whenever possible, not only photos
• Record review date, light source, reviewer, and decision

If a sample looks acceptable in Japan but darker in factory photos, lighting may be the cause. Align review conditions before discussing color correction.

Create OK / NG Limits During Sample Approval

Sample approval should not stop at a simple good or bad judgement. Define how much variation is acceptable, and keep OK samples, correction samples, and NG samples for quick production decisions.

• Store approved samples by SKU and do not rely only on photos
• Describe correction direction such as darker, lighter, redder, or yellower
• Define priority areas such as face, skin tone, costume, and logo
• Keep the same limit-sample version on both buyer and factory sides

For PVC figures, skin tone, white, pale pastel colors, and very dark colors tend to show differences clearly. Decide priority areas before revision feedback.

Use a Pre-production Meeting and First Article Check

Before production starts, align approved samples, color references, paint formulas, and work instructions inside the factory. Check the first pieces from the production line against the approved sample before continuing.

• Record paint formula, drying time, and spray passes
• Compare first articles at the same angle as the approved sample
• Stop production and adjust if the first article is off color
• Record any condition changes after approval

Skipping first article confirmation can allow hundreds of off-color pieces to be produced before anyone notices. Keep first article photos and judgement comments even for small runs.

Control Trial Lots and SKU-level Color Lots

For multi-color series, color difference and mixing errors often happen together. Use a small trial lot to verify material lots and paint conditions, then separate SKUs with trays, labels, and inspection sheets during mass production.

• List SKU name, color code, quantity, and lot number
• Physically separate similar colors by tray and label
• Recheck the first pieces after every color change
• Prepare anti-mixing steps for assortments and random packing

In projects with many color variants, wrong assortment can become a customer complaint as easily as color difference. Track color and SKU control on the same inspection sheet.

Check Packaging, Storage, and Shipping Effects

Contact with packaging materials, heat, humidity, and long storage can cause color transfer, yellowing, or gloss changes. Review not only unpacked samples but also the look after individual packing, carton packing, and pre-shipment storage.

• Avoid direct contact between dark parts and pale parts
• Check color transfer with OPP bags, backing cards, and blisters
• Discuss heat, humidity, and long-storage risks in advance
• Photograph packed samples under the same condition as approval samples

White and pale PVC parts may be affected by nearby colors or packaging materials. Confirm color in the actual selling condition.

Keep Photos and Judgement Records Before Shipment

Before shipment, compare approved samples, mass production pieces, and packed goods together. If color difference is suspected, record the part, direction, SKU, lot, and quantity so the issue can be corrected in the next run.

• Keep both close-up photos and full product photos for priority colors
• Record NG judgement with quantity, SKU, lot, and affected part
• Check schedule impact early if rework or remake is needed
• Summarize the cause and countermeasure for the next order

Photos alone cannot fully prove color, but they are useful shipment evidence. Manage approved physical samples and QC photos together.

Extra Checks That Reduce Color Difference

Final color is affected by material, spray painting, printing, packaging, and storage conditions together.

Common Causes of Color Difference and Countermeasures

Mass production color issues usually come from incomplete color references, different review environments, changed production conditions, or mixed lots.

Final Checklist Before Inquiry

Prepare these seven items before asking a factory about PVC figure color control.

1. Color codes, physical color samples, and reference samples
2. Paint areas, color split lines, and surface-finish specs
3. Standard light, background, and photo conditions
4. OK / NG / limit sample storage rules
5. First article check timing and approver
6. SKU quantity, color variants, and lot-control sheet
7. Packed-sample and pre-shipment QC photos with judgement notes

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