#6 · ZL · 230×120mm

ZL Envelopes

Standard Chinese Business Mail — Invitations and Bills. Custom manufactured in 7 paper stocks with full-color printing, foil stamping, embossing, and your choice of closure — factory-direct from EnvelopeDock.

230×120mm ZL Envelope — Custom Manufacturing Options

The ZL envelope (230×120mm, Chinese #6) is the standard format for domestic Chinese business mail. Slightly longer than DL at 230mm, it accommodates Chinese-language documents, red envelopes (Hongbao), invoices, and official correspondence common in Chinese business culture. The ZL format is embedded in China’s commercial infrastructure — used by banks, government offices, utility companies, and businesses for millions of mailings every day. We produce ZL envelopes in a wide range of materials including traditional kraft for official use, woodfree for corporate stationery, and art coated papers for promotional mailings. Custom printing options include full-color CMYK, spot colors for company chops and seals, and foil stamping in gold — a traditional choice for Chinese New Year red envelopes and wedding invitations.

Typical use case: Chinese business mail — invoices, official correspondence, Hongbao, invitations

All zl envelopes listed below are manufactured to your specification — choose your paper, printing, finishing, and quantity, then request a quote for factory-direct pricing.

ZL Envelope Specifications

Property	Value
Dimensions (mm)	230×120
Chinese size number	#6
International equivalent	ZL
Opening style	Open side (wallet flap)
Common paper weight	100–120 g/m² woodfree; 80–120 g/m² kraft
Best for	Standard Chinese business mail — invoices, Hongbao, invitations

Paper Material & Weight Options

Seven paper stocks are available for custom zl envelopes. Every material below can be combined with your choice of printing and finishing.

Material	Available GSM (g/m²)	Best suited for
Woodfree	80, 100, 120, 140, 160, 200, 250	Everyday business — color or mono printing
Kraft yellow	80, 100, 120, 150, 180, 200, 250, 300, 350, 400	Durable & opaque — blank or single-color
Kraft white	100, 120, 150, 180, 200, 230, 250, 300	Durable & printable — premium business
Art coated	105, 128, 157, 200, 250, 300, 350	High-gloss color — promotions, invitations
Single-coated (white card)	210, 250, 300, 350	Rigid & thick — premium card enclosures
Matte art	105, 128, 157, 200, 250, 300	Low-gloss color — refined business
Pearl ice-white	120, 140, 160, 200, 250, 300, 350	Pearlescent — luxury invitations, commemorative

Printing Color Options

From blank envelopes to full-color CMYK — every printing level is available for custom zl envelopes.

Print level	Description
Full color (4C)	Four-color CMYK — photographic quality
2 color	Two spot colors
1 color	Single-color text or logo
Blank (no print)	Plain white / kraft natural

Post-Press Finishing Processes

Every finishing option below can be applied to custom zl envelopes. Mix and match to achieve your desired look and function.

Process	Available options
Lamination	None / Gloss (single-side) / Matte (single-side) / Anti-scratch matte / Soft-touch / Holographic
Varnish	None / Gloss varnish (single-side)
Embossing	None / Standard embossing plate / Deep embossing plate
Flat foil	None / Standard flat foil / Sculpted foil
Foil color	None / Gold / Matte gold / Red gold / Blue gold / Black gold / Silver / Custom color
Tape	None / Double-sided tape / Release tape
Self-adhesive	None / Self-adhesive (gummed flap)

Quantity Tiers & Quote Request

Configure your zl envelope specifications above, then select a quantity tier and submit a quote request. We respond with an exact price within 24 hours. No prices are published online — every order is quoted individually based on your exact material, printing, and finishing choices.

Quantity	Action
500 pcs	Request Quote →
1,000 pcs	Request Quote →
2,000 pcs	Request Quote →
3,000 pcs	Request Quote →
5,000 pcs	Request Quote →
10,000 pcs	Request Quote →

⚠️ All prices are quoted individually. Configure your specifications above, then submit a request — we respond with an exact quote within 24 hours. No prices are displayed on this page.

Frequently Asked Questions

What is the minimum order quantity (MOQ) for custom envelopes?

Our standard MOQ is 1,000 pieces for custom printed envelopes. For custom sizes requiring a new cutting die, the minimum is 2,000 pieces. Specialty finishes like foil stamping start at 500 pieces. If you need a trial order, contact us — we accommodate flexible quantities for first-time clients.

What is the production lead time?

Standard production takes 7–15 business days for custom printed envelopes. Custom sizes requiring die fabrication add 3–5 days. Rush orders are available and can reduce turnaround by 30–50%. Your quote will include an exact timeline based on your specifications.

What file formats do you accept for printing artwork?

We accept AI, EPS, PDF, CDR, and high-resolution TIFF/PSD files. For full-color printing, please provide CMYK color mode at 300 dpi minimum. For spot color jobs, specify Pantone codes. Include 3 mm bleed and keep text 5 mm from trim edges. Our prepress team reviews every file and provides a free digital proof before production.

Can I get a sample before full production?

Yes — we provide free digital proofs for every order. Physical pre-production samples are available on request (sample cost is credited toward your production order). Samples typically ship within 3–5 business days. This is the best way to verify paper feel, print quality, and finishing before committing to a full production run.

Ready to order custom zl envelopes?

Configure your specifications and get a factory-direct quote within 24 hours. No obligation, free digital proof included.

Request a Quote → Custom Manufacturing →

Explore Other Envelope Sizes

Compare all standard envelope sizes manufactured by EnvelopeDock. Click any size for full specifications, material options, and custom ordering details.

Also see: Business Envelopes · Printing & Finishes · Custom Manufacturing · Wholesale & Bulk Orders · Key Card Holders