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Enhance your company’s communications with China’s professional Letter paper envelope printing factory wholesale printing. We produce customizable envelopes for business, marketing, secure correspondence, and large-scale orders, ensuring every piece represents your brand.

Letter paper envelope printing factory wholesale in China is designed to facilitate clear and efficient communication. By customizing envelope content and layout, recipients can instantly understand the origin and purpose of documents. This ensures that business operations, client communication, and internal correspondence proceed smoothly with minimal confusion or delays.
| Aspect | Regular Envelope | Rongli Custom Envelope |
|---|---|---|
| Information Clarity | Minimal details | Clear sender, recipient, and purpose labeling |
| Operational Efficiency | Basic use | Speeds up document handling |
| Use Cases | General office use | Business letters, contracts, internal correspondence |
In China, Letter paper envelope printing factory wholesale provides professional envelope shapes to fit different document types. Rectangular envelopes are standard for official letters, square envelopes suit invitations or cards, and booklet envelopes are ideal for reports or multi-page communications. Choosing the right shape enhances usability and maintains a professional image.
| Envelope Shape | Generic Envelope | Rongli Custom Envelope |
|---|---|---|
| Rectangular | Official letters | Custom layout and branding for professional use |
| Square | Invitations | Premium style for events or marketing |
| Booklet | Manuals | Optimized for multi-page content |
Envelope sizes in China follow a mix of international ISO standards, US commercial formats, and local Chinese preferences. Choosing the right size ensures compatibility with content, postage rules, and mailing machines. This table covers the most frequently used sizes with dimensions and typical China applications.
| Size Name / Code | Dimensions (mm) | China Common Uses & Notes |
|---|---|---|
| DL (ISO) | 110 × 220 | Standard for China business letters and invoices; fits A4 folded in thirds |
| C5 (ISO) | 162 × 229 | Popular for China A5 documents or unfolded cards; widely accepted by post offices |
| C4 (ISO) | 229 × 324 | Ideal for China full A4 sheets without folding; common in corporate mailings |
| #10 Commercial (US) | 105 × 241 | Most used US-style size in China international business; fits standard checks |
| Chinese Mid-Style DL | 110 × 220 (same as ISO DL) | Default for China domestic mail; consistent with local postal automation |
Specialty papers add unique texture and visual interest to China custom envelopes. Weights ensure they remain printable and foldable.
| Material | GSM Range | China Texture & Creative Notes |
|---|---|---|
| Embossed Linen | 110–140 GSM | Fabric simulation; elegant China corporate stationery |
| Crackle / Antique | 120–160 GSM | Vintage distressed look; for China retro branding |
| Metallic Pearl | 130–200 GSM | Shimmer finish; standout for China events |
| Velvet Touch | 120–180 GSM | Soft matte lamination; luxury feel in China |
| Watercolor Textured | 140–220 GSM | Artistic surface; creative China invitations |
China trends blend methods like digital + foil or UV flexo for innovative results. These support advanced color schemes and sustainability.
| Hybrid/Emerging Method | Color/Effect Options | China Innovation & Benefits |
|---|---|---|
| Digital + Foil Hybrid | CMYK + metallic foil | Short-run luxury; fast for China events |
| UV-LED Offset | CMYK + spot UV | Eco low-energy; durable China mailers |
| Enhanced Flexo + Digital | Spot + variable CMYK | High-speed personalization; efficient in China |
| Inline Foil + UV | Metallic + gloss | One-pass premium; for China high-end branding |
| Sustainable Soy-Based | CMYK or spot eco inks | Green printing trend in China 2026 |
Letter paper envelope printing factory wholesale in China offers A series envelope sizes that match international paper standards (A4, A5, etc.). This ensures compatibility with documents and office equipment, simplifying mailing and presentation.
| Size | Standard Use | Rongli Custom Envelope |
|---|---|---|
| A4 (8.3" x 11.7") | Full A4 documents | Fits full sheets without folding |
| A5 (5.8" x 8.3") | Half letters, invitations | Compact option for cards and flyers |
| A6 (4.1" x 5.8") | Small cards | Perfect for RSVP and greeting cards |
In China, Letter paper envelope printing factory wholesale provides string tie envelopes that combine style and functionality. A string closure allows repeated opening and closing, ideal for portfolios, contracts, and creative projects.
| Closure Type | Common Use | Rongli Custom Envelope |
|---|---|---|
| String Tie | Portfolios | Professional and reusable for important documents |
| Round Button & String | Contracts | Secure closure for repeated access |
Expandable structures in China require reinforced sealing to handle increased thickness while maintaining security.
| Expandable Seal | Structure Feature | China Capacity & Strength Notes |
|---|---|---|
| Gusset Side Seal | Reinforced side adhesive | Handles 1–3 inch expansion; for China thick catalogs |
| Bottom Gusset Seal | Reinforced bottom flap | Supports heavy loads; used in China shipping envelopes |
| Accordion Gusset | Multi-fold sides + strong seal | High capacity; for China document storage mailers |
| Gusset + Peel-and-Seal | Expandable + adhesive strip | Versatile; common in China e-commerce padded bags |
| Reinforced Corner Seal | Extra tape at corners | Prevents burst in China heavy-duty use |
China banks and financial institutions require high-security envelopes for statements, checks, and sensitive documents, with strict compliance on tamper evidence and privacy.
| Feature | Specification | China Financial Sector Requirement |
|---|---|---|
| Size | #10 with window or DL | Standard for monthly statements; window for address display |
| Material | 24 lb security paper | Anti-show-through tint; prevents content visibility |
| Security Features | Void tape, microtext, reactive ink | Tamper detection; mandatory for China regulatory compliance |
| Printing | Black + spot red/blue | Clear MICR compatibility for checks |
| Sealing | Permanent pressure seal or tamper-evident | Irreversible closure for China confidential mail |
Proofing costs and timelines in China vary by complexity, number of revisions, and rush requirements. Clear expectations prevent surprises.
| Factor | Influence on Cost/Timeline | China Typical Range & Advice |
|---|---|---|
| Number of Revisions | Free up to 2–3 rounds | Additional rounds chargeable after approval in China |
| Physical Sample Quantity | 1–5 pcs standard | Extra samples increase cost; 3–7 days in China |
| Rush Service | 50–150% surcharge | Same-day digital / next-day sample possible in China |
| Complex Finishes | Foil/emboss proof extra | Requires dedicated sample; 5–10 days in China |
| Final Sign-Off Delay | Client response time | Production holds until approval in China |
China digital and short-run printers support low minimum orders for custom envelopes, perfect for prototypes, limited editions, or seasonal needs without large commitments.
| Quantity Level | MOQ Requirement | China Best For & Cost Notes |
|---|---|---|
| 50–200 pcs | MOQ 100 (digital) | Prototypes or weddings; higher unit cost in China |
| 200–500 pcs | MOQ 200–300 | Small businesses; test market in China |
| 500 pcs | Standard low MOQ | Entry bulk; good for China startups and events |
| Digital Short Run | No strict MOQ | Per-piece pricing; flexible for China variable data |
| Low MOQ Premium | MOQ 100–200 | Foil/emboss allowed in China small luxury orders |
Choosing the right logistics method balances delivery time and cost. Letter paper envelope printing factory wholesale shipments from China can be arranged through different transport options depending on budget and schedule requirements.
| Logistics Method | Common Use | Rongli Recommendation |
|---|---|---|
| Ground Transport | Cost-focused | Stable and economical choice |
| Air Freight | Urgent needs | Time-critical orders |
| Dedicated Courier | Small batches | Fast local delivery |
Correct material preparation is essential. Letter paper envelope printing factory wholesale paper, coatings, and adhesives are prepared in China before production to ensure consistent quality and efficiency.
| Material Step | Common Practice | Rongli Approach |
|---|---|---|
| Paper Selection | Manual sorting | Pre-defined stock control |
| Adhesive & Coating | On-demand | Batch pre-application planning |
| Quality Check | Random sampling | Standardized incoming QC |
Proofing and design revisions can add to the total cost. In China, Letter paper envelope printing factory wholesale suppliers account for multiple rounds of proofing and modifications in the pricing structure.
| Revision Step | Standard Cost | Rongli Handling |
|---|---|---|
| Initial Proof | Included | Digital proof free same day |
| Minor Revisions | Additional charge | Batch revisions included |
| Major Revisions | High | Optimized workflow to minimize cost |
Answers to less common but important questions about special requirements, international orders, and more.
| Question | Answer |
|---|---|
| Can I use my own design files? | Yes, but we check for printability; adjustments may incur fees. |
| Do you print for international shipping? | Yes, export-ready with proper packaging; FOB China available. |
| What about eco-certifications? | FSC, recyclable materials; we provide certificates upon request. |
| Can I combine different designs in one order? | Yes, shared setup; MOQ per design, total counts for discount. |
| What if I need very small quantity? | Digital printing supports 50–200 pcs; higher unit price but possible. |
Meet the core needs of consumers, easy to pack, store, and open, and increase the attractiveness of products
Selected paper materials, lightweight, foldable, recyclable, environmentally friendly, and odorless
Match brand personality, align with product attributes, make the brand more recognizable, and create a charm from the outside in
Film coating UV、 Surface treatment processes such as hot stamping and pasting increase the high-end and exquisite quality of packaging boxes
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