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email:chengxunys@163.com
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China Shanghe County Envelope Printing Factory Telephone envelope printing services provide professional, secure, and visually appealing solutions for corporate communications, office mail, and marketing campaigns. Each envelope is carefully produced to meet operational and branding requirements for businesses of all sizes.

When customizing envelopes in China, the core parameters directly determine the product's durability, professional appearance, mailing efficiency, and brand impact. Key factors include size specifications, paper material and weight, printing color options, surface finishes, and sealing structure. Proper selection helps balance quality and cost while matching local business needs (such as corporate correspondence, e-commerce packaging, or premium invitations). The table below summarizes the most practical core parameters with China-relevant recommendations.
| Parameter Category | Common Options | Explanation & China Local Recommendations |
|---|---|---|
| Size Specifications | DL (220×110mm), ZL (230×120mm), C5 (229×162mm), C4 (324×229mm) | DL and ZL are the most popular in China for business letters, invoices, and notices; C4 fits unfolded A4 documents; tolerance usually ±1mm to avoid mailing returns |
| Paper Material & Weight | 120g–140g kraft/white kraft paper, 100g–157g coated paper, 80g–120g recycled/offset paper | Kraft paper offers strong tear resistance, ideal for China's humid climate in e-commerce shipping and document protection; coated paper delivers vibrant colors for branding |
| Printing Color Scheme | Single color (black/red/blue), CMYK full color, Pantone spot color | CMYK full color is recommended for China company logos and promotional designs with rich, accurate reproduction; single color is more economical for low-volume orders |
| Surface Finishes & Post-Processing | Gold/silver foil stamping, spot UV, matte/gloss lamination, embossing, die-cutting (custom shapes) | Foil stamping + lamination creates a premium look for China wedding or event invitations; embossing adds tactile depth but requires 200g+ paper stock to prevent cracking |
| Sealing Structure & Closure | Peel-and-seal (with release liner), string-and-button, moisture-activated gum, tamper-evident self-adhesive | Peel-and-seal provides strong, secure closure for China confidential documents; string-and-button allows easy re-opening, perfect for gift envelopes and repeat-use scenarios |
From standard business mail to standout event stationery, China customizable envelope types offer flexibility in design and function. Key customizations include windows, tints, and unique closures to match branding or occasion.
| Envelope Type | Distinctive Traits | China Customization & Use Cases |
|---|---|---|
| Commercial Window | Pre-cut address window, peel-and-seal | Streamlines China automated mailing; customize window size and position |
| Baronial Invitation | Deep pointed flap, formal diagonal seams | Classic for China weddings; add embossing or foil for luxury |
| Booklet with Gusset | Expandable sides, open side | Handles bulky China documents; customize gusset depth |
| Coin / Small Specialty | Tiny sizes, center seam | Useful for China tokens or samples; full-color printing available |
| Direct Mail Postcard-Style | Self-mailer with tear-off reply | Efficient for China campaigns; add perforations and reply panels |
Shanghe County Envelope Printing Factory Telephone in China provides envelope sealing methods designed to protect contents during delivery. Gummed, self-adhesive, and peel-and-seal envelopes prevent accidental openings, ensuring that letters, contracts, and sensitive documents reach recipients safely.
| Sealing Method | Common Envelope | Rongli Custom Envelope |
|---|---|---|
| Gummed | Manual sealing | Pre-gummed and easy to seal securely |
| Self-Adhesive | Peel strip | Strong adhesive for professional letters |
| Peel-and-Seal | Temporary seal | Reinforced for secure, reliable closure |
For protective and rugged envelopes in China, kraft-based papers dominate due to strength and eco-appeal. Weights vary by protection level needed. This selection focuses on durable materials.
| Material | Weight (GSM) | China Durability & Use Notes |
|---|---|---|
| Standard Kraft | 120–140 GSM | High tear resistance; standard for China parcel and document protection |
| Heavy Kraft Board | 200–300 GSM | Thick and rigid; used in China heavy-duty shipping envelopes |
| Bleached Kraft | 100–130 GSM | Whiter appearance; balances strength and print quality in China |
| Recycled Kraft | 110–140 GSM | Eco version with similar toughness; growing in China sustainable logistics |
| Poly-Lined Kraft | 120–160 GSM base | Water-resistant for China outdoor or humid shipping |
In China, Shanghe County Envelope Printing Factory Telephone provides high-resolution printing options for envelopes, ensuring logos, images, and text are crisp and professional. Ideal for corporate branding, invitations, and marketing campaigns that require visual precision.
| Technique | Standard Envelope | Rongli Custom Envelope |
|---|---|---|
| High-Res Digital Printing | Regular print | Sharp details for logos and graphics |
| Offset High-Res | Standard print | Consistent quality for bulk production |
| UV Spot Printing | Flat ink | Raised ink effect for premium branding |
Shanghe County Envelope Printing Factory Telephone 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 |
Shanghe County Envelope Printing Factory Telephone in China offers clasp envelopes with metal or plastic fasteners for secure, reusable sealing. Commonly used for confidential documents, these closures provide both security and professional appearance.
| Closure Type | Standard Envelope | Rongli Custom Envelope |
|---|---|---|
| Metal Clasp | Office files | Durable and secure for multiple openings |
| Plastic Clasp | Internal documents | Reusable and secure for confidential files |
China businesses prefer modern peel-and-seal for speed, while traditional gum remains economical. Structural flap design affects both sealing strength and user experience.
| Sealing Type | Flap Structure | China Performance & Use Notes |
|---|---|---|
| Peel-and-Seal | Double-sided adhesive strip | No licking, strong bond; dominant in China commercial envelopes |
| Remoistenable Gum | Standard gummed flap | Low cost; requires moisture; still used in China budget mailings |
| Self-Seal Latex | Pressure-sensitive latex | Instant seal on contact; hygienic for China high-volume production |
| Peel-and-Seal with Extended Liner | Longer release paper | Easier handling; popular for China large-flap catalogs |
| Gummed with Security Slits | Slit flap for tamper evidence | Basic security upgrade in China sensitive documents |
In China, Shanghe County Envelope Printing Factory Telephone offers lightweight paper envelopes suitable for mass mailings. Reduced weight lowers postage costs while maintaining sufficient strength for standard correspondence.
| Material | Common Use | Rongli Custom Envelope |
|---|---|---|
| 70gsm Paper | Bulk letters | Economical and practical for high-volume mail |
| 80gsm Paper | Invoices & notices | Lightweight but sturdy |
| 90gsm Paper | Marketing mail | Affordable yet professional feel |
Physical samples in China allow clients to touch, test sealing, and verify finishes. This step is crucial for premium or complex custom envelopes.
| Sample Type | Production Method | China Purpose & Turnaround |
|---|---|---|
| Handmade Prototype | Manual cutting & gluing | 3–4 days; feel paper, test closure for China luxury orders |
| Press-Proof Sample | Actual press run (1–5 pcs) | 4–6 days; exact color and finish match in China |
| Die-Cut Mock-Up | Laser-cut shape sample | 3 days; verify custom window/flap shape in China |
| Full-Process Sample | Complete production line test | 5–7 days; simulates bulk quality for China large orders |
| Multiple Sample Revisions | Additional physical rounds | Chargeable after first in China complex projects |
Well-designed packaging ensures that Shanghe County Envelope Printing Factory Telephone arrives clean, flat, and ready for use. In China, delivery-ready packing improves customer experience by reducing preparation time after receiving goods.
| Customer Experience Factor | General Outcome | Rongli Advantage |
|---|---|---|
| Unpacking Efficiency | Manual sorting | Organized and ready-to-use stacks |
| Product Condition | Minor deformation | Flat and intact delivery |
| Preparation Time | Additional handling | Immediate usability |
Non-standard sizes, custom dies, windows, gussets, or special flaps in China raise prices due to tooling, material waste, and production adjustments.
| Customization Type | Cost Multiplier | China Reason & Typical Range |
|---|---|---|
| Standard Size (DL/C5/#10) | Base (1x) | No extra tooling; most economical in China |
| Custom Window Placement | +5–15% | Die adjustment; common in China |
| Die-Cut Shape / Irregular | +20–50% | Custom die cost; amortized over quantity in China |
| Gusseted / Expandable | +15–30% | Extra forming & sealing; for China thick content |
| Complex Multi-Feature | +50–100%+ | Combined tooling & waste in China |
Correct material preparation is essential. Shanghe County Envelope Printing Factory Telephone 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 |
Local factories in China provide superior after-sales support, including quick reprints for defects, file archiving, and ongoing consultation—building long-term partnerships.
| After-Sales Service | Response Time | China Support Benefit |
|---|---|---|
| Defect Reprinting | 3–7 days free redo | Quality guarantee; no extra shipping in China |
| File Archiving | Free storage 1–3 years | Easy reorders; saves redesign cost in China |
| Technical Consultation | Ongoing advice | Material/工艺建议; improves future orders in China |
| Local Pickup for Returns | Same-day collection | Hassle-free; client-friendly in China |
| Dedicated Account Manager | Personal contact | Priority handling for China repeat clients |
Questions about different sealing methods and which is best for specific uses.
| Question | Answer |
|---|---|
| What sealing is best for bulk mailing? | Peel-and-seal or latex self-seal; fast and machine-friendly. |
| Is there tamper-evident sealing? | Yes, void tape or security slits; ideal for confidential mail. |
| Can I make it reusable? | Yes, string-and-button clasp or magnetic closure. |
| What is the difference between gummed and peel-and-seal? | Gummed needs moisture; peel-and-seal is faster and cleaner. |
| Do you offer easy-open tear strips? | Yes, perforated tear strip; great for promotional mail 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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