High-Opacity Digital and Inkjet PVC Printing Sheet for Card Manufacturing
Wallis digital or inkjet lightproof PVC printing sheet is a thin, high-opacity printable card substrate developed for B2B card factories, print service providers and OEM card converters. It is used as a printed layer in laminated ID cards, membership cards, gift cards, hotel key cards, access cards, RFID cards and other short-run or personalized plastic card programs.
In this product category, lightproof means high opacity or strong light-blocking performance. The purpose is to reduce show-through from graphics, barcodes, numbers, antennas or dark layers on the opposite side of a thin card structure. It does not automatically mean that the material or printed image is UV-weatherproof for outdoor signage.
The printable coating, PVC base, printer model, ink chemistry, drying conditions, overlay and lamination cycle must be qualified as one production system. Wallis supports custom thickness, sheet size, coating side, opacity and sample testing before bulk supply.
Product Specifications
| Parameter | Current Product Reference | B2B Confirmation Required |
| Material | Rigid white PVC with a printable surface treatment or coating | Confirm whether the grade is for aqueous inkjet, UV digital, toner-based digital printing or another specified process. |
| Primary Function | High-opacity printed layer for laminated plastic cards | Specify the target card structure, required opacity and whether printing is single-sided or double-sided. |
| Current Thickness Range | 0.14–0.34mm | Thin grades around 0.15–0.17mm are commonly evaluated for printed layers; final thickness and tolerance must be confirmed by quotation and sample. |
| Sheet Size | 210 × 297mm, 420 × 297mm and customized formats | Confirm printer feed size, grain or machine direction, squareness, cutting tolerance and artwork layout. |
| Color | White | Confirm standard white, super white, whiteness target, opacity target and batch color tolerance. |
| Printable Side | Coated printing surface | Confirm one-side or two-side coating and identify the printable face before production. |
| Supply Form | Cut sheets; custom formats subject to review | Confirm sheets per pack, carton quantity, pallet, moisture protection and destination requirements. |
Reference Physical Data from the Current Product Page
The following values are retained from the current Wallis product information. They should be treated as reference values rather than universal guarantees for every custom coating, thickness or production batch. Request the applicable specification sheet, test method and lot-level acceptance criteria for your order.
| Test Item | Direction or Condition | Reference Result | Unit |
| Density | — | 1.42 ± 0.05 | g/cm³ |
| Tensile Strength | Machine / Horizontal | ≥44 | MPa |
| Cross / Vertical | ≥44 |
| Vicat Softening Point | 5kg condition stated on the current page | 80 ± 2 | °C |
| Surface Dyne | Current page reference | ≥34 | dynes/cm |
| Regular Thickness | Current page reference | 0.14–0.34 | mm |
What Does Lightproof PVC Mean in Card Production?
A thin white card-printing layer can allow dark artwork, encoded information, an RFID antenna or another card layer to remain visible from the opposite side. A high-opacity PVC formulation reduces this unwanted show-through and helps the front and back graphics maintain cleaner visual separation.
Opacity Is Different from UV Resistance
Opacity measures how effectively the sheet blocks transmitted light or hides the layer behind it. UV resistance describes how a material or printed image behaves during ultraviolet exposure. A high-opacity sheet is not automatically suitable for outdoor service, and an outdoor claim must be supported by testing of the exact ink, coating, laminate and finished card.
Lightproof Is Different from Backlit Media
This product is intended for plastic card manufacturing rather than backlit advertising panels. Backlit graphics are designed to transmit controlled light, while a lightproof card layer is selected to prevent transmission and protect the visual privacy of the card design.
Opacity Must Be Evaluated After Printing and Lamination
The buyer should evaluate opacity on the complete card stack because ink coverage, adhesive, clear overlay, colored core, RFID inlay and lamination pressure can change the final appearance. A sample printed with the intended artwork provides more useful evidence than a raw-sheet opacity statement alone.
Inkjet and Digital Printing Grades Are Not Interchangeable
“Digital printing” covers several unrelated technologies. An aqueous inkjet coating, UV-curable ink surface, dry-toner grade and liquid-electrophotographic grade may require different chemistry, surface energy, heat resistance and feed characteristics. The printer brand, model and ink must therefore be identified before material approval.
| Printing Workflow | Required Sheet Characteristics | Critical Qualification Checks |
| Desktop Aqueous Inkjet | Ink-receptive coating formulated for the intended dye or pigment ink | Media feed, head clearance, color density, drying time, waterfastness, rub resistance and coating side. |
| Industrial UV Inkjet | PVC surface compatible with UV-curable ink and downstream heat lamination | Ink adhesion, curing, brittleness, odor, surface relief, cracking and peel strength after lamination. |
| Dry-Toner Digital Printing | Heat-stable grade with toner-receptive surface and reliable sheet transport | Fusing temperature, curl, static, registration, toner adhesion and contamination risk. |
| Liquid Electrophotographic Printing | Equipment-specific primer or certified surface treatment may be required | Press model, primer, ink adhesion, blanket transfer, duplex registration and lamination compatibility. |
| Screen or Offset Printing | A grade designed for the selected ink rather than an aqueous-inkjet coating by default | Wetting, drying or curing, blocking, adhesion and heat resistance. |
| Thermal Card Personalization | Usually a finished blank card or approved outer surface, not the same loose inkjet sheet | Ribbon, retransfer film, card thickness, encoder clearance and card-printer approval. |
An “inkjet printable” claim should never be interpreted as compatibility with every inkjet printer. Many desktop printers cannot feed rigid 0.30mm PVC through a curved paper path. Confirm the maximum media thickness, straight-through feed, printable area, driver settings and head clearance.
Recommended Plastic Card Layer Structure
The high-opacity printing sheet is normally one component of a laminated card, not the entire finished card. A typical structure may include the following layers:
| Layer | Typical Function | Key Control Point |
| Front Clear Overlay | Protects graphics and may carry magnetic stripe, hologram or other features | Adhesive side, thickness, gloss/matte finish and bonding compatibility. |
| Front Printed Lightproof PVC | Carries front artwork while reducing show-through | Printable face, opacity, ink drying and layer orientation. |
| Core or RFID Prelam | Provides thickness, rigidity and optional chip/antenna functionality | Final card gauge, antenna position, chip cavity and layer registration. |
| Back Printed Lightproof PVC | Carries reverse artwork and separates front/back graphics | Duplex alignment, opacity and ink compatibility. |
| Back Clear Overlay | Protects the reverse surface and supports signature or security features | Bonding, surface finish, magnetic stripe and signature panel compatibility. |
A finished CR80 card is commonly designed around a nominal thickness near 0.76mm, but the final gauge is built from all layers. A 0.15mm or 0.17mm lightproof sheet is only one layer and should not be confused with the complete card thickness.
Core Benefits for B2B Card Manufacturers
Reduced show-through: helps separate front and back artwork in thin multi-layer cards.
Coated printable surface: supports high-resolution output when matched to the specified printer and ink.
Small-batch flexibility: suitable for prototypes, variable artwork and shorter card-production runs.
Card-converting compatibility: can be evaluated for overlay lamination, cutting, punching and personalization.
Custom specifications: thickness, size, opacity, whiteness, coating side and packaging can be reviewed for OEM orders.
Sample-led approval: printing and lamination tests can be completed before volume production.
Applications of High-Opacity Printable PVC Sheet
Membership, Loyalty and Gift Cards
Suitable for short-run branded cards where vivid artwork, personalized campaigns and front-to-back graphic separation are required.
ID, Employee and Access Cards
Can be used in laminated identification structures carrying photos, names, QR codes, barcodes and access credentials. Security and service-life requirements must be validated on the complete credential.
Hotel Key Cards
Appropriate for printed hotel card bodies when the card construction, magnetic stripe or RFID chip and hotel lock system have been confirmed together.
RFID and NFC Cards
The printed lightproof layers may cover an RFID prelam and reduce visual exposure of the antenna. RF performance comes from the chip, antenna and layout; reading distance must be tested after lamination and punching.
Prototype and Small-Batch Card Programs
Digital or inkjet workflows allow artwork changes without offset plates, making the material useful for samples, pilot projects, localized designs and variable-data programs.
Golden Sample Approval Process
Confirm the application: card type, service environment, expected life and security requirements.
Identify the printing system: printer manufacturer, model, ink type, feed path and maximum media thickness.
Define the sheet: thickness, dimensions, whiteness, opacity, coating side and quantity.
Print trial artwork: include solid colors, small text, QR/barcodes, gradients, skin tones and heavy ink coverage.
Complete card conversion: dry or cure the ink, laminate with the intended overlay/core, cool, punch and personalize.
Approve the Golden Sample: record the material lot, printer settings, ink, drying time, lamination cycle and acceptance results.
B2B Quality Control and Acceptance
| Inspection Item | Why It Matters | Suggested Approval Method |
| Thickness and Tolerance | Controls final card gauge, press loading and punching stability | Measure agreed points across the sheet and compare with the approved specification. |
| Dimensions and Squareness | Affects printer feed, artwork registration and card matrix cutting | Check length, width, diagonals, edge condition and orientation. |
| Whiteness and Batch Color | Changes printed color and brand consistency | Approve a physical standard and agreed color-difference method. |
| Opacity / Transmittance | Determines show-through protection | Measure using an agreed instrument and inspect the printed final card over a controlled light source. |
| Coating Side and Surface Energy | Controls ink wetting, drying and adhesion | Mark the printable face and test dyne or coating performance using the approved method. |
| Ink Adhesion and Drying | Prevents smearing, transfer and delamination | Use the actual printer/ink and agreed drying time; perform tape, rub and blocking tests. |
| Lamination Bond | Protects the printed layer during service | Test peel strength, bubbles, whitening, curl and image cracking after full cooling. |
| Finished Card Performance | Confirms the complete system rather than the raw sheet only | Check thickness, bending, torsion, abrasion, cleaning resistance, personalization and RF reading where applicable. |
Packaging, Storage and Handling
Printable coatings can be affected by moisture, dust, fingerprints, pressure and long storage. Keep unopened packs sealed in a clean, dry, temperature-controlled area. Condition the material in the production room before printing when there is a significant temperature or humidity difference.
Handle sheets by the edges and avoid touching the printable surface.
Protect against dust, static, scratches and direct sunlight.
Keep sheets flat and do not place excessive weight on opened packs.
Use first-in, first-out stock rotation and record material batch numbers.
Recheck dyne or print response after extended storage if the process is sensitive.
![Export packaging and shipping for lightproof PVC card printing sheets]()
Information Needed for a Fast B2B Quotation
| Information | Details to Provide |
| Card Application | ID, membership, gift, hotel, access, RFID/NFC or another card type; expected use environment and service life. |
| Printer and Ink | Brand, model, ink technology, cartridge/ink code, media path and maximum supported thickness. |
| Sheet Specification | Thickness, tolerance, length, width, whiteness, opacity, surface finish and one-side/two-side coating. |
| Card Construction | Layer stack, overlay, core, RFID prelam, magnetic stripe, signature panel and final card thickness. |
| Performance Requirements | Ink adhesion, water, abrasion, cleaning chemicals, UV exposure, bending, peel strength and RF reading. |
| Commercial Details | Sample quantity, trial order, monthly or annual forecast, packing, destination, delivery schedule and documentation. |
Why Choose Wallis for Lightproof PVC Card Sheets?
Card-material focus: coating, opacity, thickness, overlay and final card structure can be reviewed together.
Custom converting: sheet size, thickness and packaging can be configured for printers and card factories.
Sample testing: buyers can test feed, color, drying, adhesion, opacity and lamination before bulk approval.
One-stop card materials: related core sheets, overlays, RFID prelam and other card components can be discussed.
B2B export supply: protected packing and project-based documentation can be arranged subject to order requirements.
Frequently Asked Questions
What is a lightproof PVC printing sheet?
It is a high-opacity printable PVC layer used in laminated plastic cards. Its main purpose is to reduce show-through from the reverse artwork or internal card structure.
Does lightproof mean the sheet is UV-resistant outdoors?
No. Lightproof refers to opacity, not automatically to sunlight resistance. Outdoor durability must be tested using the exact ink, coating, laminate and finished product.
Can the same sheet be used for every inkjet and digital printer?
No. Aqueous inkjet, UV inkjet, dry toner and liquid electrophotographic systems require different surface and heat characteristics. Confirm the printer model and ink before ordering.
What is the difference between inkjet PVC and ordinary PVC core sheet?
Inkjet PVC has a receptive coating designed to control ink wetting, drying and adhesion. Ordinary PVC core sheet may not accept aqueous inkjet ink and can produce pooling, bleeding or weak adhesion.
Which side of the sheet should be printed?
Print on the designated coated side. For one-side coated material, the reverse side may be formulated for lamination rather than printing. Packaging and sample markings should be checked before use.
Why are 0.15mm and 0.17mm sheets used for cards?
Thin sheets can act as front and back printed layers in a multi-layer card. The complete card thickness comes from the two printed layers, core, overlays, adhesive and any RFID or magnetic components.
Can the printed sheet be laminated immediately?
Only after the ink has dried or cured according to the approved process. Incomplete drying can cause color transfer, bubbles, poor bonding or image damage during hot lamination.
Is a clear overlay required?
A clear overlay is commonly used to protect ink and improve card durability. Selected no-overlay workflows are possible only after abrasion, water, chemical and service-life testing confirms acceptable performance.
Can it be used for RFID or NFC cards?
Yes, as the printed outer or intermediate layer around an RFID prelam. Chip, antenna, frequency and reading distance must be tested after the entire card is laminated and punched.
How should opacity be specified?
Use an agreed test method such as transmittance or contrast ratio, together with a visual check on printed laminated cards. “High opacity” without a method is insufficient for batch acceptance.
Can Wallis provide custom sizes and thicknesses?
Custom dimensions, thicknesses, coating configurations and opacity targets can be reviewed based on production feasibility, quantity and the approved sample.
What should be tested before a bulk order?
Test printer feeding, color, drying, ink adhesion, opacity, overlay bonding, lamination, punching, final thickness, bending and any RFID, magnetic stripe or personalization functions.
