High-Transparency Colorful Inkjet OHP Film Manufacturing & Global B2B Supply
Welcome to Yixing Wangzhe Laminating Film Co., Ltd. (WONLAMI), a premier high-tech enterprise dedicated to the research, development, precision coating, functional polymer technology, and international distribution of advanced office supplies and protective packaging materials. Founded in 1999, our enterprise brings over 25 years of specialized extrusion and coating experience to serve global educational equipment suppliers, commercial print shops, design studios, advertising display producers, and office stationery distributors across more than 40 countries. As leading Colorful Inkjet OHP Film manufacturers, an advanced Colorful Inkjet OHP Film factory, and a trusted supplier for Colorful Inkjet OHP Film wholesale, we engineer high-clarity Overhead Projector (OHP) transparency films constructed with premium optical-grade Polyethylene Terephthalate (PET) base film featuring a specialized micro-porous ink-absorbing coating on one or both sides, delivering instant ink drying, high color density, sharp detail reproduction, superior water resistance, tear-proof durability, and vibrant transparent display for projection, education, creative crafts, and advertising overlays.
Our manufacturing operations span two modern intelligent production bases strategically located in Yixing, Jiangsu Province, China, and Rayong, Thailand. Covering a total land area of 135 mu with over 90,000 square meters of standardized clean industrial facilities, our dual-base infrastructure operates 10 advanced extrusion and precision coating lines, 29 high-speed automatic slitting machines, 2 multifunctional die-cutting units, and 4 fully automated packaging lines. Supported by a dedicated workforce of over 300 skilled technical professionals, our annual production capacity exceeds 30,000 metric tons. Whether your procurement demands standard 100mic A4 and A3 pre-cut sheet packs, custom roll formats for wide-format inkjet plotters, single-side or double-side ink-absorbing coatings, or specialized OEM retail box packaging, our production infrastructure delivers micrometer-level gauge uniformity, short lead times, and factory-direct volume value.
Micro-Porous Ink-Absorbing Coating Science & Optical PET Base Physics
In educational classrooms, corporate presentations, architectural overlay drafting, backlit window displays, and silk-screen printing plate preparation, printing high-definition color images onto transparent plastic substrates requires specialized chemistry. Standard uncoated plastic films are hydrophobic, causing water-based inkjet inks (dye or pigment) to pool, bead up, smear, and take hours to dry, resulting in blurred text and low color saturation. Conversely, photo paper lacks the see-through optical transparency necessary for overhead projection and multi-layer overlays.
WONLAMI Colorful Inkjet OHP Film resolves ink adhesion and transparency challenges through a high-tech silica micro-porous coating matrix applied to optical PET film. The base substrate comprises optical-grade PET polymer offering high light transmittance (>90%), low thermal shrinkage, and dimensional stability under intense projector lamp heat. The surface layer is coated with a nano-silica ink-receptive polymer layer that rapidly absorbs water-based inkjet inks via capillary action. Ink droplets lock into place instantly upon contact, preventing color bleeding, ink feathering, or puddling. Once dry, the printed image exhibits rich color saturation, deep blacks, high line resolution, and complete waterproof performance. Compared with opaque photo paper, WONLAMI Inkjet OHP film creates a luminous, crystal-clear visual effect that enhances color vibrancy on overhead projectors and LED lightboxes.
To support diverse surface mounting, commercial printing, and specialized interactive display needs across global B2B sectors, WONLAMI manufactures a comprehensive portfolio of office products and lamination media. For electrophotographic laser toner printers, Laser Printing OHP Film provides heat-resistant toner fusion, while Crystal Clear Laminating Roll Film delivers thermal encapsulation, Crystal Clear Cold Laminating Roll Film offers pressure-sensitive cold protection, Sticky Back Laminating Film delivers peel-and-stick mounting support, and Self-Adhesive Pocket Film provides document organization:
- Instant-Drying Micro-Porous Coating: Nano-scale ink-receptive coating absorbs water-based dye and pigment inks immediately, preventing ink smudging, line feathering, or color bleeding.
- High Optical Clarity & Vivid Color Saturation: Optical PET base film delivers high light transmission, making projected images and backlit graphics look vivid, crisp, and lively.
- Waterproof & Tear-Resistant Durability: Impervious to water splashes, moisture, tear forces, and repeated handling, outperforming delicate paper alternatives.
- Universal Inkjet Printer Compatibility: Engineered for seamless feeding and vibrant color output on all major desktop and wide-format inkjet printers (Epson, Canon, HP, Roland, etc.).
Diverse Specialty Product Portfolio & Application Alignment
As an industry-leading polymer composite innovator holding over 20 authorized patents, WONLAMI manufactures a versatile range of OHP transparency media, lamination films, and office supplies tailored for distinct educational, commercial printing, graphic design, and industrial workflows:
OHP Transparencies & Office Specialty Media
Includes instant-dry colorful inkjet OHP transparency films and heat-stabilized laser printer OHP films for presentations, overlays, and silk-screen printing.
Explore technical details for Colorful Inkjet OHP Film and Laser Printing OHP Film.
For educational equipment suppliers, school stationery distributors, commercial printing centers, advertising agencies, and creative craft brands requiring custom sheet dimensions, roll widths for plotters, custom coating formulations, or OEM retail packaging, our engineering facility produces high-grade custom Colorful Inkjet OHP Film products tailored strictly to client machinery and market specifications.
Technical Specifications & Tested Material Parameters
To assist procurement managers, educational product buyers, and quality control engineers in specifying exact material parameters for colorful inkjet OHP transparency film, the following structured tables detail our standard technical capabilities:
| Technical Parameter |
Standard Value / Spec |
Custom Option |
Engineering Significance |
| Substrate Material Structure |
Optical PET Base + Micro-Porous Ink Coating |
Single-Side or Double-Side Coated |
Optical PET base provides high transparency, dimensional lay-flat stability, and heat resistance. |
| Standard Film Thickness |
100 mic (4.0 mil) Nominal Gauge |
75mic – 125mic customized gauge |
Ensures smooth printer feeding mechanism grip and structural stiffness during handling. |
| Standard Available Sizes |
A4 (210 x 297 mm) / A3 (297 x 420 mm) |
Letter, Legal, Custom Cut Sheets / Rolls |
Fits all standard office printer paper trays and wide-format inkjet plotting machinery. |
| Printer & Ink Compatibility |
All Water-Based Inkjet Printers (Dye & Pigment) |
Eco-solvent / UV inkjet options |
Ensures fast ink drying and sharp resolution across Epson, Canon, HP, and Roland printers. |
| Light Transmittance & Clarity |
Transmittance > 90%; High Image Density |
High optical clarity spec |
Delivers luminous, crystal-clear visual output on overhead projectors and backlit displays. |
| Waterproof & Anti-Curl |
100% Waterproof Coating; Flat Lay-Flat PET |
Anti-static printer feed coating |
Prevents paper jam feed errors, moisture damage, and edge curling during long-term storage. |
| Product Format Spec |
Target Application |
Printing Equipment |
Expected Lifecycle |
| 100mic A4 / A3 Sheet Pack |
Overhead projector teaching transparencies, presentation slides, architectural overlays, school crafts |
Desktop Inkjet Printer (Dye/Pigment) |
5+ years color fidelity |
| 100mic Custom Cut Sheet |
Screen printing positive films, PCB circuit pattern film, medical imaging output, photo overlays |
High-resolution inkjet center printer |
5+ years sharp line density |
| 100mic Inkjet Roll Stock |
Backlit advertising displays, window decorations, large-format presentation graphics, trade show banners |
Wide-format inkjet plotter / printer |
5+ years waterproof display |
Dual-Base Intelligent Manufacturing & Global Supply Chain Resilience
To insulate global stationery partners from regional freight disruptions, tariff shifts, and capacity constraints, WONLAMI operates an integrated dual-base manufacturing network across Yixing, China, and Rayong, Thailand. Our four-phase hardware expansion program has established a flexible production system capable of high-volume continuous delivery:
- Yixing Manufacturing Base (China): Serves as our primary innovation center and core coating hub. Outfitted with high-speed precision coating lines, 10,000 m² clean workshops, 2 multifunctional die-cutting units, and automated slitting systems.
- Rayong Production Base (Thailand): Strategic international manufacturing facility offering tariff-optimized, duty-free container shipments to North America, Europe, and Southeast Asia (successfully completing 5-container initial batch exports).
- Precision Coating & Automated Sheet Packaging: Houses 29 automatic roll slitting machines, high-precision sheet cutting units, and 4 automatic packaging lines, guaranteeing precise sheet squareness and clean dust-free sheet faces.
Our dedicated R&D division includes 30 senior engineering professionals, over 45% of whom hold master's degrees or above, with 80% bringing more than a decade of specialized polymer composite experience. Supported by collaborative research think-tank partnerships with Jiangnan University and Nanjing Tech University, we hold over 20 authorized patents and intellectual property rights, continuously driving material innovation and coating performance upgrades.
Quality Control Management & Global Certifications
Coating absorption uniformity, ink drying speed, anti-curl lay-flat stability, and optical light transmittance are critical for inkjet OHP film quality. WONLAMI enforces a rigorous, zero-defect quality management framework across every step of the manufacturing workflow:
Polymer Base & Coating Resin QC
100% inspection of incoming virgin optical PET base films, nano-silica coating formulations, and anti-static additives for purity and consistency.
Inline Spectrophotometer & Sheet Cutting QC
Continuous online laser thickness gauging, automatic spectrophotometer light testing (>90%), and high-speed automatic sheet cutting squareness verification.
Print Test & Water-Resistance QC
Laboratory equipped with Epson/Canon/HP inkjet test rigs to verify instant drying, color density, line resolution, and 100% water resistance.
Our manufacturing facilities and products comply strictly with major international quality and environmental management standards, holding official certifications for ISO 9001, ISO 14001, GRS (Global Recycled Standard), BSCI, REACH, RoHS, C-TPAT, and UL. Furthermore, our modern facilities feature rooftop distributed solar photovoltaic power installations to support sustainable, low-carbon manufacturing.
Printer Driver Calibration & Handling Best Practices
To achieve maximum color saturation, sharp text detail, and instant ink drying when printing on Colorful Inkjet OHP Film, users should follow these printer driver settings and handling guidelines:
- Print Media Type Setting: In the printer driver setup menu, select "Premium Glossy Photo Paper", "Transparency", or "Heavyweight Coated Paper" to optimize ink volume delivery.
- Print Side Identification: Load sheets into the printer paper tray with the coated, ink-receptive side facing the print heads (the slightly rougher or stickier side on single-sided film).
- Handling & Fingerprint Care: Handle film sheets by the outer edges or wear cotton gloves to prevent skin oil transfer onto printable areas.
- Storage Environment: Store unused OHP film packs in their original moisture-barrier bags in a cool, dry place away from direct sunlight and humidity.
Wholesale Customization & Order Parameter Checklist
When submitting custom order requests, OEM private label branding inquiries, or bulk wholesale specifications to our engineering team, providing the following operational details enables us to prepare an exact technical proposal and factory-direct quotation:
Custom Wholesale Order Checklist:
- Target Dimensions & Format: Pre-cut sheets (A4, A3, Letter, Legal) or continuous roll width (310mm to 1270mm).
- Coating Specification: Single-side coated or double-side coated micro-porous ink layer; 100mic standard gauge.
- Packing Specification: Sheets per retail box (10, 20, 50, or 100 sheets per pack with interleaving paper options).
- Retail Branding & OEM: Custom printed retail brand boxes, barcode labeling, shrink wrapping, and inner foil bags.
- Logistics & Origin Preference: Container shipment size (20GP / 40HQ) and preferred dispatch base (Yixing, China or Rayong, Thailand).
Frequently Asked Questions (FAQ)
Q1: Why choose WONLAMI as your primary Colorful Inkjet OHP Film factory and wholesale supplier?
WONLAMI brings over 25 years of specialized composite experience, operating two modern production bases in China and Thailand with 10 extrusion/coating lines and an annual capacity exceeding 30,000 tons. We enforce strict ISO 9001 and ISO 14001 quality systems, providing global stationery distributors with instant-dry micro-porous coating technology, high optical PET base transparency (>90%), 100% waterproof performance, competitive factory-direct pricing, and flexible tariff-optimized shipping options.
Q2: What is the main difference between Colorful Inkjet OHP Film and Laser Printing OHP Film?
Colorful Inkjet OHP Film is coated with a micro-porous ink-receptive layer designed specifically to absorb liquid water-based dye or pigment inks from inkjet printers. Laser Printing OHP Film is engineered with high heat resistance and anti-static coating to withstand the elevated fuser roller temperatures (above 180°C) of laser toner printers.
Q3: Does the printed ink smudge or run if exposed to water drops?
No. The nano-silica micro-porous coating locks water-based inkjet ink pigments and dyes permanently into the polymer structure. Once dry (which happens almost instantly upon printing), the printed image is 100% waterproof and will not smudge or smear when touched with damp hands or exposed to moisture.
Q4: Can WONLAMI supply custom sheet sizes, roll stock for plotters, and OEM retail packaging?
Yes. We specialize in custom B2B manufacturing, providing colorful inkjet OHP film in standard A4 and A3 sizes, custom sheet cuts, wide-format roll stock up to 1270mm width, custom packaging packs (10, 20, 50, 100 sheets), and full OEM private-label retail box branding tailored to distributor specifications.
Q5: What international quality and environmental certifications back WONLAMI colorful inkjet OHP film products?
WONLAMI products strictly comply with global safety and environmental standard mandates. Our production systems carry official certifications for ISO 9001, ISO 14001, GRS (Global Recycled Standard), BSCI, REACH, RoHS, C-TPAT, and UL. Every production batch undergoes laboratory testing for ink drying speed, color density, light transmittance (>90%), and 100% water resistance prior to release.
Partner with WONLAMI for High-Performance Colorful Inkjet OHP Film
Whether you are sourcing volume instant-dry inkjet OHP transparency films for educational presentations, screen printing film positives, creative crafts, or custom private-label retail packaging solutions, our technical engineering team is ready to provide material samples, technical specifications, and factory-direct volume quotes.
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