PP Corrugated Briefcase — Waterproof, Crush-Proof Document Protection
A leather briefcase costs $300 and gets ruined in the rain. A metal document case weighs 5 kg before you even put papers in it. A nylon bag offers zero crush protection for architectural drawings and legal files.
PPBOXY’s PP瓦楞公文包 is the answer to all three problems in a single product. Constructed from high-impact PP中空板 — the same twin-wall polypropylene used in industrial protective packaging — this briefcase delivers:
- 100% waterproof protection — rain, spills, and wet surfaces pass right off
- Crush-proof twin-wall structure — protects contents from stacking weight and impact
- Under 1.5 kg empty — less than 1/3 the weight of a metal document case
- Full custom branding — your logo, colors, and design on every case
- Recyclable PP — supports corporate sustainability commitments
Unlike leather, it doesn’t stain. Unlike metal, it doesn’t dent. Unlike nylon, it doesn’t let your documents get crushed when someone stacks a box on top.
PP Corrugated Briefcase Specifications
| 项目 |
Specification |
| 材料 |
Corrugated Polypropylene (PP) |
| 厚度 |
2毫米 – 5毫米 |
| 标准尺寸 |
A4, A3, Custom Sizes |
| 颜色 |
Blue, White, Black, Gray, Custom |
| Handle Type |
Integrated Plastic Handle |
| 打印 |
Silk Screen / UV Printing |
| 防水性能 |
Yes |
| 可回收 |
100% |
| OEM/ODM |
已支持 |
| 最小起订量 |
No MOQ |
PP Corrugated vs Traditional Briefcases — Material Comparison
| 功能 |
PP Corrugated (PPBOXY) |
Leather |
Aluminum/Metal |
Nylon/Fabric |
| 防水 |
★★★★★ 100% |
★☆☆☆☆ Ruined by water |
★★★★★ Sealed |
★★☆☆☆ Absorbs |
| Crush Protection |
★★★★★ Twin-wall |
★☆☆☆☆ No structure |
★★★★★ Rigid shell |
☆☆☆☆☆ Zero |
| 重量（空载） |
★★★★★ <1.5 kg |
★★★☆☆ 2-3 kg |
★☆☆☆☆ 4-7 kg |
★★★★★ <1 kg |
| Cost |
★★★★★ Affordable |
★☆☆☆☆ $200-500+ |
★★☆☆☆ $100-300 |
★★★☆☆ $30-100 |
| Custom Branding |
★★★★★ Full print |
★★★☆☆ Emboss only |
★★☆☆☆ Engrave only |
★★★★☆ Screen print |
| Stain Resistance |
★★★★★ Wipe clean |
★☆☆☆☆ Permanent stains |
★★★★☆ Good |
★★☆☆☆ Absorbs |
| Dent/Scratch |
★★★★☆ Resists |
★★☆☆☆ Scratches |
★★☆☆☆ Dents |
★★★★☆ Resists |
| Professional Look |
★★★★☆ Modern/clean |
★★★★★ Classic |
★★★★☆ Industrial |
★★★☆☆ Casual |
| 可回收性 |
★★★★★ 100% PP |
★☆☆☆☆ Mixed materials |
★★★★★ Aluminum |
★☆☆☆☆ Mixed fibers |
| Best For |
Field use, bulk, branding, rain |
Boardroom, luxury image |
High-security, tools |
Light casual use |
Industry & Professional Applications
Legal Professionals: Court documents, case files, and evidence folders stay dry and uncrushed — rain or shine, courthouse to car. Custom printing with firm logo projects a unified professional image.
Architects & Engineers: Rolled and flat drawings survive site visits intact. Unlike cardboard tubes that crush and leather folios that stain, a PP corrugated briefcase handles construction site conditions without compromising contents. The lightweight design means carrying plans across a job site all day doesn’t become a workout.
Sales Teams & Field Representatives: Equip your entire sales force with matching branded briefcases. Custom color-matched to corporate identity, with logo prominently displayed. They project consistency at every client meeting. When empty, they fold flat for easy storage — deploy for client visits, store between trips.
Corporate Gifts & Promotional Products: A practical, branded item that recipients actually use — not another pen or mug destined for a drawer. Customize with company logo, event branding, or employee name. Ideal for: new hire welcome kits, client appreciation gifts, conference giveaways, dealer/distributor incentive programs.
Training & Education: Training materials, participant handbooks, and certificates arrive organized and protected. Custom-printed with program branding — creates a premium learning experience from the moment participants receive their materials.
For other document and component organization needs, explore our polypropylene corrugated board dividers and custom plastic shipping containers for larger-scale transport.
Custom Branding — Your Logo on Every Case
This is where the PP corrugated briefcase truly outperforms traditional briefcases. Unlike leather embossing (expensive, limited area) or metal engraving (barely visible), PPBOXY’s PP corrugated sheets accept full-color screen printing across the entire case surface:
- Full-bleed logo printing — your brand covers the entire front, back, or both
- 1-4 color screen printing — crisp, durable, professional finish
- Corporate color matching — exact Pantone matching for brand consistency
- Variable data — individual names, department codes, or sequential numbering
- QR codes — link to digital catalogs, training videos, or contact information
The same printing technology we use for outdoor corflute signs — engineered for years of weather exposure — is applied to your briefcases. The print won’t fade, peel, or scratch off under normal professional use.
Why Choose PPBOXY for Corrugated Briefcases
The only manufacturer doing this. Most corrugated plastic manufacturers make boxes, bins, and sheets. PPBOXY has invested in the precision cutting, scoring, and assembly processes required to produce a product that competes on appearance with traditional briefcases while outperforming them on function.
Complete customization — no mold charges. Every briefcase can be different: size, color, closure style, handle type, printing. No tooling investment required.
Factory-direct pricing. Work directly with the production team. No distributor markup on branded corporate orders.
Rapid sampling. Evaluate a sample briefcase with your logo before committing to production. Samples within 3-5 business days.
Ready to protect your documents — and your brand? 索取报价 — tell us your quantity, preferred size, and branding requirements. We’ll respond within 24 hours.
常见问题解答
Q1: Is the PP corrugated briefcase really waterproof?
是的。PP（聚丙烯）本身具有100%级防水性能，且完全不吸湿。这款公文包可在雨中使用，可放置在潮湿的表面上，擦拭后也不会渗水。它能为内部文件提供IPX4级防溅保护。.
Q2: How much weight can the briefcase hold?
承重能力取决于公文包的尺寸、板材厚度以及结构设计。PPBOXY公文包采用耐用的双层波纹聚丙烯材料制成，具有出色的刚性和抗压性能，适合携带文件、产品目录、样品和宣传资料。对于较重的物品，我们可以根据您的具体要求，定制材料厚度和加固结构。.
Q3: What sizes are available?
We manufacture to your specifications. Standard sizes accommodate A4/letter documents and legal-size files. Custom sizes are available — provide your document dimensions and we’ll design the optimal case.
Q4: Can the briefcase be printed with our company logo?
Yes. We offer 1-4 color screen printing for logos, company names, and branding. Full-bleed printing across the entire case surface is available. The print is durable and won’t fade or peel under normal professional use. See the Custom Branding section above for details.
Q5: What is the minimum order quantity (MOQ) for branded briefcases?
We don’t tie you down with a minimum order requirement. Whatever your volume — a few pieces for testing or a massive bulk order — we’re equipped to handle it with ease.
Q6: How does the closure system work?
The briefcase features high-impact PP clasps that snap securely closed. The clasps are molded from the same polypropylene material as the case, ensuring they won’t rust or corrode. They provide secure closure while allowing quick one-hand operation.
Q7: Is the PP corrugated briefcase suitable for air travel?
Yes. The lightweight construction makes it ideal for carry-on use — it won’t contribute significantly to weight limits. The crush-proof structure protects documents from overhead bin pressure. Dimensions can be customized to meet specific airline carry-on requirements.
Q8: How does it compare to a leather briefcase in appearance?
A PP corrugated briefcase has a clean, modern, technical appearance — it won’t be mistaken for leather. The value proposition is different: it’s waterproof (leather isn’t), crush-proof (leather isn’t), fully printable (leather can only be embossed), and costs a fraction of the price. For field professionals, branded team deployment, and corporate gifting, these functional advantages outweigh the material aesthetic difference.
Q9: Can I order samples before bulk production?
Yes. We produce evaluation samples within 3-5 business days. For custom-printed samples, we’ll produce one unit with your artwork for approval before proceeding to full production.
Q10: Are PP corrugated briefcases recyclable?
Yes. The entire briefcase is 100% polypropylene (resin code 5) and can be processed through standard PP recycling streams. At end of life, it doesn’t need to be disassembled — the clasps, body, and handle are all the same material.
PP瓦楞公文包