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Fixed hotline：021-66317519
Service Hotline：181-0186-9996
Fixed hotline：021-66317519
Service Hotline：181-0186-9996
Service Hotline：181-0186-9996
email：chengxunys@163.com
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Custom Letter paper envelope printing company manufacturer envelope printing in China delivers professional solutions for corporate communications, office mail, and marketing campaigns. Our services focus on high-volume production, secure document handling, and precise brand representation, helping businesses maintain a polished and consistent image across all correspondence.
In China, Letter paper envelope printing company manufacturer serves as a professional tool for formal correspondence. By customizing envelopes with relevant branding, sender details, and layout, organizations ensure that all documents are clearly identified and presented in a professional manner. This is suitable for client communications, legal documents, official notices, and corporate letters.
| Feature | Regular Envelope | Rongli Custom Envelope |
|---|---|---|
| Professional Appearance | Generic look | Branded, clean, and professional layout |
| Identification | Minimal labeling | Sender and purpose clearly displayed |
| Typical Applications | General correspondence | Contracts, client letters, corporate notices |
Letter paper envelope printing company manufacturer in China offers several envelope shape options tailored to specific business applications. Rectangular envelopes are standard for letters, square envelopes are perfect for premium invitations, and booklet envelopes suit reports and brochures. Customization allows each shape to meet practical and branding requirements.
| Shape Option | Standard Envelope | Rongli Custom Envelope |
|---|---|---|
| Rectangular | Standard letters | Custom dimensions and branding for each document |
| Square | Occasional events | Elegant design for invitations or marketing |
| Booklet | Reports or manuals | Optimized layout for multi-page inserts |
E-commerce in China demands durable, lightweight sizes that protect products during transit. These specifications include protective variants like bubble-lined.
| Size / Type | Dimensions (mm) | China Shipping & E-commerce Notes |
|---|---|---|
| 10 × 13 Poly Mailer | 254 × 330 | Standard flat apparel shipping in China |
| 12 × 15.5 Bubble | 305 × 394 | Cushioned for fragile items in China logistics |
| 6 × 9 Padded | 152 × 229 | Small product mailers in China; tear-resistant |
| 14.5 × 19 Catalog | 368 × 483 | Larger e-commerce packages in China |
| Chinese Large Kraft | 250 × 350+ | Local express delivery in China platforms |
GSM ranges help compare envelope papers in China for the right balance of strength, cost, and print results. This table summarizes common categories with decision factors.
| Weight Category | GSM Range | China Typical Materials & Best For |
|---|---|---|
| Lightweight | 80–110 GSM | Bond, light kraft; bulk mailing and cost savings |
| Medium | 100–170 GSM | Coated, recycled; branded business and promotions |
| Heavyweight | 180–300+ GSM | Cardstock, thick kraft; premium protection and luxury |
| Eco/Specialty | 90–200 GSM | Recycled, textured; sustainable or unique China projects |
| Standard Recommendation | 120–140 GSM | Versatile balance for most China custom envelopes |
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 company manufacturer in China offers multi-purpose envelope sizes suitable for letters, cards, brochures, and marketing materials. Versatile sizing ensures envelopes meet both functional and aesthetic needs.
| Size | Common Use | Rongli Custom Envelope |
|---|---|---|
| 5" x 7" | Cards and invitations | Perfect for greeting and RSVP cards |
| 6" x 9" | Brochures and letters | Fits folded A5 and promotional inserts |
| 8.5" x 11" | Official letters | Accommodates standard US letter sheets |
Precise positioning ensures envelopes process smoothly through China postal and inserting machines. Follow these guidelines to avoid jams or rejects.
| Position Parameter | Recommended Distance | China Automation & Postal Notes |
|---|---|---|
| From Bottom Edge | 12–15mm minimum, 5/8" (15.9mm) standard | Matches China postal barcode clear zone requirements |
| From Left Edge | 20–26mm (left-aligned) | Standard left placement for China address reading |
| Clear Zone Buffer | ≥1/8" (3mm) around address block | Prevents cutoff when insert shifts; critical for China high-speed lines |
| Vertical Alignment | Centered or top-aligned to insert | Test full movement range in China inserting trials |
| Right-Side Window Option | Mirrored placement | For right-flap envelopes in China special designs |
Easy-open features improve recipient experience in China, especially for promotional or survey mail that requires quick access.
| Easy-Open Feature | Mechanism | China User Experience & Uses |
|---|---|---|
| Easy-Tear Strip | Perforated pull-tab | Quick open without tools; popular for China direct mail |
| Zip-Open Strip | Plastic zipper tear line | Smooth opening; suits China e-commerce return envelopes |
| Notch-Cut Flap | Finger-grip notch | Simple finger lift; economical for China promotional mail |
| Double Perforation | Two tear lines | Controlled reveal; for China interactive campaigns |
| Peel-Off Outer Flap | Removable cover flap | Surprise reveal in China gift or promo designs |
Hospitals, clinics, and labs in China require confidential, hygienic, and compliant envelopes for patient records, test results, and billing.
| Requirement | Specification | China Healthcare Application |
|---|---|---|
| Size | DL window or C5 | Fits reports and bills; window for address privacy |
| Material | Security paper 100–120gsm | Anti-show-through; protects patient data |
| Security | Tamper-evident seal + tint | HIPAA-like compliance; for China medical confidentiality |
| Printing | Black + spot color logo | Clear, professional; minimal ink for hygiene |
| Closure | Permanent pressure seal | One-time secure closure for China results mail |
Reliable quality builds customer confidence. Through consistent inspection and control, Letter paper envelope printing company manufacturer manufacturers in China ensure stable performance, repeatability, and dependable delivery for long-term cooperation.
| Quality Outcome | General Result | Rongli Advantage |
|---|---|---|
| Product Stability | Inconsistent batches | Stable quality across orders |
| Return Risk | Occasional issues | Reduced defect-related returns |
| Customer Trust | Price-driven | Quality-driven cooperation |
China offers two main production paths: digital for low MOQ/flexibility, offset for high volume/low unit cost. Choose based on quantity and budget.
| Production Method | Typical MOQ | China Quantity Suitability & Cost |
|---|---|---|
| Digital Printing | MOQ 50–200 pcs | Low-volume, variable data; higher per-unit in China |
| Offset (Sheet-Fed) | MOQ 500–1,000 pcs | Medium runs; better unit price in China |
| Offset (Web/Flexo) | MOQ 5,000+ pcs | High volume; lowest cost for China bulk |
| Hybrid Digital-Offset | MOQ 300–1,000 pcs | Bridge option; growing in China for mid-size |
| Custom Setup Fee | Applies to offset | Amortized over quantity in China larger orders |
Reliable delivery ensures production planning stability for customers. In China, Letter paper envelope printing company manufacturer logistics solutions emphasize consistency, coordination, and predictable delivery outcomes.
| Reliability Factor | General Outcome | Rongli Advantage |
|---|---|---|
| On-Time Dispatch | Occasional delays | Planned shipping execution |
| Delivery Consistency | Variable | Repeatable logistics process |
| Customer Planning | Reactive | Predictable delivery timelines |
Rush orders in China compress timelines significantly but require higher MOQ, surcharges, and priority scheduling. Availability depends on current capacity.
| Rush Level | Total Lead Time | China Surcharge & Conditions |
|---|---|---|
| Standard (7–12 days) | Normal | No extra fee; baseline in China |
| Express (5–7 days) | Shortened | 30–50% surcharge; MOQ 1,000+ in China |
| Super Rush (3–5 days) | Highly compressed | 50–100% extra; limited slots in China |
| Same-Week (digital only) | 2–4 days | Digital short-run; higher unit price in China |
| Weekend/Emergency | 1–3 days | Double surcharge; rare availability in China |
Material selection directly affects Letter paper envelope printing company manufacturer pricing in China. Paper, ink, coatings, and adhesives contribute to the base cost and influence customization options.
| Cost Factor | Standard Rate | Rongli Advantage |
|---|---|---|
| Paper Type | Market average | Bulk procurement for cost stability |
| Printing Ink | Standard inks | Eco-friendly ink at competitive cost |
| Coating/Finish | Optional | Cost-efficient finishing options |
Most design-related issues can be avoided with proper file setup. Here are the questions we get asked daily in China.
| Question | Answer |
|---|---|
| Should I use RGB or CMYK? | Always CMYK. RGB files will be converted and may cause color shift in China printing. |
| How much bleed do I need? | 3–5mm bleed on all sides is required for full-bleed designs in China. |
| Do you need fonts outlined? | Yes, or embed all fonts to avoid text changes during production in China. |
| Can I include variable data (names/addresses)? | Yes, Excel/CSV format accepted. Additional charge applies for digital variable printing in China. |
| Will my Pantone color be exact? | 100% match with Pantone spot ink; CMYK simulation has slight variation in China. |
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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Fixed hotline：+86-021-66317519
Service Hotline：181-0186-9996
email address：chengxunys@163.com
Address: Floors 1-5, Building 30, Lane 2, Suide Road, Putuo District, Shanghai
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