This covered 13-pocket rainbow expanding file folder is student & office multi-category document classification storage stationery, widely used for exam paper sorting, subject data filing, enterprise contract classification, meeting portable document arrangement and stationery retail bulk wholesale merchants. As a professional PP plastic office folder factory with stable domestic and cross-border export stock supply chains covering Southeast Asia, Europe and Middle East education & office supplies markets, we adopt thickened new raw material PP plastic, 13 independent rainbow color gradient inner pockets, integrated front cover + elastic cord buckle anti-scatter locking design, solving common defects of cheap expanding folders: thin recycled PP easy to crack, single transparent inner page unable to classify subjects/files, no cover easy to stain paper, loose without fixing strap leading to scattered documents.
This black outer cover 13-grid expanding folder fixed dimension 33cm × 24cm × 1.5cm, single unit gross weight 308g, outer carton loading specification: outer master carton size 51×34×34cm, 40 folders loaded per full carton. Outer shell is matte solid black thick PP with dustproof cover, internal 13 independent separate pockets with rainbow gradient color lining for visual classified management; built-in elastic cord buckle at front edge to fasten the whole folder tightly after folding, prevent internal A4 papers sliding and scattering during carrying in schoolbags and briefcases. Outer sheet thickness 70C thick PP, inner divider 12C high-transparent PP, all new raw material without recycled scrap plastic, scratch-resistant and waterproof. Whether primary/secondary school student multi-subject exam paper classified storage, enterprise administrative multi-type contract filing, training institution student training data sorting, business meeting portable multi-page document carrying or stationery store black single-color shelf retail sales, our covered 13-pocket rainbow inner PP expanding folder delivers wear-resistant, multi-grid color-coded document sorting solutions for global education & office stationery bulk buyers and individual student & office end users.
Product Parameter Specification of 13-Grid Black Cover Cord Buckle Rainbow Expanding File Folder
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Parameter Item |
Complete Specification Details |
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Product Name |
13-Pocket Covered Rainbow Inner Expanding File Organizer Bag / Cord Buckle A4 Document Sorting Folder |
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Full Material |
New environmental PP plastic raw material (outer shell 70C thick PP, inner divider pocket 12C PP, no recycled scrap plastic) |
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Outer Appearance |
Matte solid black dustproof front cover, integrated elastic cord buckle locking design |
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Internal Structure |
13 independent separate sorting pockets with rainbow gradient color lining for color classification |
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Single External Dimension |
Length 33cm × Width 24cm × Thickness 1.5cm |
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Single Unit Gross Weight |
308 grams per folder |
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Outer Export Master Carton Spec |
Carton outer size 51cm × 34cm × 34cm, fixed loading quantity 40 folders per carton |
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Core Feature Advantages |
Thick scratch-resistant new PP raw material, 13 independent rainbow color inner pockets for classified filing, dustproof full front cover, elastic cord buckle anti-scatter locking, lightweight portable A4 size, waterproof stain-resistant plastic surface, unified black single color, standard 40pcs whole carton bulk export specification, universal student & office multi-scene use |
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Applicable Crowds |
Primary & secondary school students, college learners, enterprise administrative clerks, training institution teachers, meeting staff, stationery retail merchants, school & corporate office supply bulk procurement purchasers |
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Applicable Scenarios |
Student multi-subject exam paper & homework classified storage, enterprise financial/HR/project contract multi-category filing, training class student course data sorting, business meeting portable multi-page presentation materials carrying, office drawer multi-type document partition arrangement, stationery store single black color retail shelf sales, school semester unified student filing stationery group purchase |
Product Feature and Application of Black Cover 13-Pocket Rainbow Inner PP Expanding Folder
Core Competitive Product Advantages
1. 13 Independent Rainbow Gradient Color Inner Pockets, Realize Fine Multi-Category Classification
Thirteen separate independent sorting compartments with rainbow gradient colored lining inside, users can assign different subjects, contract types, project files to different color pockets at a glance, quickly distinguish and extract target documents without flipping messy mixed papers. Far more refined sorting capacity than 8/10-grid ordinary expanding folders, suitable for students with many subjects and enterprises with multi-department multi-type file management.
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2. Full Dustproof Black Front Cover + Elastic Cord Buckle Double Protection
Integrated solid black full front cover covers the entire file stack, effectively block dust, ink stains and external scratches when stored in schoolbags and office drawers, keep internal papers clean and tidy. Matching elastic cord buckle at the front edge: after folding the folder flat, stretch the cord to wrap and lock tightly, even inverted, shaken or squeezed during commuting transport, the internal A4 documents will not slide out and scatter, eliminate the trouble of rearranging scattered files after taking out. The elastic cord has stable tensile resilience, long-term repeated stretching will not lose elasticity and break.
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3. High-Quality Thick New PP Raw Material, Scratch-Resistant Anti-Break Waterproof
Adopt brand new original PP plastic sheet, refuse cheap recycled scrap material with impurities; outer cover upgraded to 70C thickened PP, inner dividing pocket 12C transparent PP. The plastic surface forms a compact water-repellent layer, accidental water splashes, coffee stains and dust can be wiped clean with a rag; strong tensile resistance, long-term repeated folding and frequent opening/closing will not crack, white crease or break, far more durable than thin recycled plastic expanding folders. Matte black outer cover does not leave obvious fingerprint residue after long-time holding.
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4. Standard A4 33×24cm Portable Flat Size, Easy to Carry & Store
Unified A4 matching dimension 33×24×1.5cm, flat slim shape after closing can slide into schoolbag side pockets, briefcase inner compartments and office drawer gaps without occupying excessive storage space. Single weight only 308g lightweight design, long-time outdoor meeting, commuting to school portable document carrying will not bring heavy burden. The expandable accordion crease design can hold dozens of sheets of thick multi-page exam papers and contracts without arching unable to close.
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5. Standardized 40pcs Per Export Master Carton Bulk Specification
Outer shipping carton fixed size 51×34×34cm, uniform loading quantity 40 folders per full carton, standardized container loading parameters for cross-border large-volume export and school back-to-school semester bulk procurement, simplify merchants' warehouse inventory statistics and logistics freight calculation. Single color solid black unified packing, convenient for retail shelf single-color batch sales and institutional unified matching procurement.
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Wide Multi-Scenario Application Range
- Student Daily Study Storage Scenarios: Primary & secondary school multi-subject homework and exam paper classified filing, college professional course reading material sorting, midterm/final exam review data portable storage, after-school tutoring exercise collection arrangement.
- Enterprise Office Administrative Scenarios: Financial monthly bill & contract classified storage, human resources employee document partition filing, engineering project multi-version drawing sorting, business meeting portable meeting minutes and presentation materials carrying.
- Education Training Institution Scenarios: Training class student admission data unified filing, off-campus tutoring weekly homework color classification storage, training teacher courseware print material portable folder matching.
- Stationery Retail & Institutional Bulk Procurement: Independent stationery store solid black single-color shelf retail sales, supermarket student supplies zone display sales, school semester unified student document storage stationery group purchase, enterprise employee office stationery bulk matching supply.
Production Details of Black Cover 13-Grid Rainbow Inner PP Expanding File Folder
All covered expanding folders are manufactured on automated thick new PP sheet slitting, rainbow inner pocket accordion hot pressing forming, black cover lamination and elastic cord buckle fixing production lines, with strict layer-by-layer quality control including new PP raw material cutting, 13-grid rainbow color lining separate molding, dustproof cover hot pressing and cord buckle assembly; black outer cover physical overview, rainbow multi-color inner pocket close-up and elastic cord locking demonstration detail pictures fully display product craftsmanship for global education & office stationery wholesale purchasers.
At raw material preparation stage, we select low-odor non-toxic new original PP plastic rolls (no recycled scrap) for folder production, each plastic batch passes tensile anti-break, scratch resistance and water repellent testing before entering slitting workshops. Automated precision slitting equipment cuts unified 33×24cm outer cover sheets and inner divider sheets, split two independent pipelines for solid black outer cover matte treatment and rainbow gradient color inner pocket printing respectively to avoid color cross-contamination inside the machine.
For core 13-grid accordion crease & cord buckle assembly craft: Multi-layer inner PP sheets are sent to hot pressing machines to form stable expandable accordion creases for 13 independent pockets, the crease after thousands of folding cycles will not crack or white mark. High-resilience elastic cord buckle is fixed at the front cover edge with reinforced sewing points to prevent cord falling off after long-term stretching and pulling. Finished folders are unified sorted into solid black single-color batches, packed into independent transparent OPP dustproof bags as single-unit basic retail packaging to isolate surface scratches during warehouse storage and transit.
40pcs sorted black expanding folders are counted into one reinforced export master carton with buffer partition filler inside, effectively isolating PP plastic surface scratch and accordion crease deformation during long-distance cross-border sea and land transportation. Our product detail page can upload black full folder overall real shot, 13-grid rainbow color inner pocket side-by-side comparison, elastic cord buckle locking close-up and student exam paper filing scene diagrams, allowing overseas stationery buyers to observe thick new PP texture and multi-grid classified storage performance clearly without physical samples before bulk order placement.
Product Qualification of 13-Pocket Covered Rainbow Inner PP Expanding Document Folder
Our PP plastic office folder factory holds complete student & enterprise office filing stationery production and domestic & export qualification certificates, fully complying with international new raw material PP plastic and elastic rubber environmental protection production standards, greatly boosting purchasing trust for school procurement departments, chain stationery retailers and global education & office supply import distributors.
All thick new PP plastic sheet and elastic cord raw material suppliers provide official safety inspection reports covering low-odor non-toxic original plastic, wear-resistant high-resilience rubber and scratch water resistance test data, with complete batch traceability records for every expanding folder production lot. The whole plastic slitting, accordion hot pressing and cord buckle sewing workshop implements daily dust-free cleaning management to control plastic scraps and impurity mixing into finished folders, meeting student long-term daily use and enterprise daily office stationery safety requirements.
We can supply full sets of export supporting certification documents including factory stationery production license, PP plastic & elastic cord raw material environmental test reports, batch finished product inspection sheets and customs clearance materials for EU, Southeast Asian and Middle Eastern markets, removing customs declaration obstacles for overseas bulk container shipments. All qualification files can be sent to clients upon request, and scanned certification copies can be uploaded to product detail pages to showcase standardized formal expanding folder mass production strength, eliminating buyers' worries about thin recycled fragile plastic, faded rainbow inner lining and loose easy-fall elastic cord defects.
Deliver, Shipping and Serving of Black Cover 13-Grid Rainbow Expanding File Folder (40pcs Per Export Carton)
Global Logistics & Flexible Delivery Solutions
We offer diversified delivery plans matching clients' different order volume demands: small trial sample orders support fast air express door-to-door delivery with trackable logistics tracking numbers; full-container large wholesale and school/corporate institutional bulk procurement orders arrange stable sea freight to mainstream global ports. Each expanding folder is pre-packed with independent transparent OPP dustproof bag, plus reinforced outer export master cartons with shockproof classified partition filler inside, effectively resisting PP plastic surface scratch, accordion crease deformation and elastic cord stretching damage during long-distance cross-border transit, minimizing finished folder damage rate. Real-time cargo tracking service is available so buyers can monitor shipment transit progress anytime.
Comprehensive Pre & After-Sales Service System
1. Free sample trial support: New cooperative clients can apply for black single-unit trial samples to test thick new PP plastic anti-break scratch performance, 13-grid rainbow inner pocket classification rationality and elastic cord buckle resilience before formal bulk procurement; custom printed brand LOGO on black outer cover service is available for large-volume school & enterprise institutional group purchase orders.
2. Customization service available: Support custom printed enterprise/school brand LOGO on the matte black front cover; this model only supplies solid black single-color unified batches, cannot split mixed-color matching packing.
3. Quality after-sales guarantee: If defective goods such as cracked broken PP plastic sheet, loose fallen elastic cord buckle, faded uneven rainbow inner lining printing or unstable accordion crease shaping are found after receiving shipments, we provide free reissue or partial compensation solutions based on authentic defective photos and video evidence.
4. Exclusive long-term agent preferential policy: For stable large-volume education & office stationery importers, school & corporate institutional bulk purchase suppliers and supermarket chain stationery buyers, we offer exclusive agent discount unit prices, priority production scheduling and dedicated one-on-one sales manager follow-up to stabilize continuous supply cycles before back-to-school semester and office supply restock peak seasons.
Professional Technical Consultation Support
Our sales and technical team own rich accordion expanding file folder stationery industry experience, capable of offering targeted matching suggestions according to clients' specific usage environments: recommending this 13-grid multi-classification black cover model for student multi-subject exam paper storage or enterprise multi-department contract filing bulk procurement. We reply to all questions about folder thick new PP material advantage, 13-grid rainbow inner pocket classification function, elastic cord buckle anti-scatter design, 40pcs full carton export specification and delivery cycle promptly within working hours, delivering warm and efficient professional consulting service for every global cooperative partner.
FAQ of Black Covered 13-Grid Rainbow Inner Cord Buckle Expanding File Folder
1. Q: How many independent sorting pockets does this expanding folder have? What color matching is used for inner lining?
A: Total 13 separate independent pockets, with rainbow gradient color lining inside for visual classified management; outer shell is unified solid matte black with full dustproof cover.
2. Q: What raw material is the folder made of? Is it recycled plastic?
A: Adopts brand new original environmental PP plastic raw material, refuse cheap recycled scrap plastic; outer cover thickness 70C, inner dividing pocket 12C, scratch-resistant, waterproof and anti-break after long-term use.
3. Q: What is the function of the front elastic cord buckle?
A: After folding the folder flat, stretch the elastic cord to wrap and lock the whole file bag tightly, prevent internal A4 papers sliding out and scattering when carried in schoolbags or briefcases, avoid messy document rearrangement trouble.
4. Q: What are the single product dimensions, single weight and export master carton parameters?
A: Single folder size 33cm × 24cm × 1.5cm, single gross weight 308g; outer shipping carton size 51×34×34cm, fixed loading quantity 40 folders per full carton.
5. Q: Can we split single less-than-full carton small batches or mix other color versions for shipment?
A: This SKU only supplies solid black single-color unified batches, the factory's export master carton fixed loading quantity is 40pcs; do not support less than full carton split small batch orders or mixed other color matching.
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