Tackling Bottlenecks in Large-Format Paper Bag Finishing
Traditional standalone post-press workflows create massive labor bottlenecks, sheet scratching, foil wastage, and curing inconsistencies. Our connected production line changes everything.
- × Excessive Labor & High Handling Costs: Operating individual screen printers, standalone hot foil stampers, and separate UV curing machines requires multiple operators per shift.
- × Substantial Metallic Foil Waste: Conventional stamping utilizes continuous foil reels without indexing, wasting unprinted web areas during partial foil patterns.
- × Frequent Substrate Scuffing: Manually offloading, stacking, and reloading large-format heavy paper (157–450 gsm) causes surface scratching and registration drift.
- × Incomplete Curing & Sheet Blocking: Inadequate UV curing lamps cause ink offsetting, chemical odor, and sticking during high-pile palletizing.
- ✓ Continuous Inline Workflow: Synchronized screen adhesive transfer, cold foil transfer, UV/IR curing, and automatic delivery in a single operator touchpoint.
- ✓ Intelligent Foil Pull-Back & Skip-Foil: Programmable skip-feed and foil pull-back capabilities minimize foil consumption on segmented bag artwork.
- ✓ Gentle & Precise Vacuum Sheet Transport: Reliable sheet-to-sheet transport prevents surface marking on delicate luxury coatings from 90 to 450 gsm.
- ✓ Deep Instant UV/IR Photo-Curing: High-output 35 kW UV curing array with 3 UV & 2 IR lamps guarantees zero offsetting and instant mechanical stability.
End-to-End Inline Workflow Architecture
From single sheet feeding to perfectly stacked finished pallets, our system unites precision screen printing, cold foiling, heavy-duty curing, and neat delivery.
Adhesive / Varnish Application
Semi-automatic or fully automatic screen printing machine lays down high-precision UV cold foil adhesive or spot varnish on specified graphic zones.
Precision Cold Foiling (QC-LTS)
Sheets transition directly into the QC-LTS unit where foil is laminated under controlled nip pressure. Advanced skip-foil and foil pull-back modules engage.
High-Power UV/IR Curing
Substrates advance through the 35 kW ZP Cure tunnel. Three UV lamps and two IR lamps provide dual-spectrum curing for high polymer cross-linking.
Automatic High-Pile Stacking
The integrated automatic sheet collector stacks finished luxury sheets up to 4,000 sh/h with side joggers, preparing pallets for die-cutting and bag making.
Three Core Workstations in One Unified Line
Explore the detailed engineering behind each stage of our complete large-format embellishment ecosystem.
Screen Connection & Cold Foil
The QC-LTS Lite Series connects seamlessly to semi-automatic or fully automatic screen printers, delivering micro-registered metallic decoration.
- Foil Pull-Back Function: Repositions foil for non-continuous patterns to maximize yield.
- Skip-Foil Control: Programmed roll index saves massive foil on segmented bag layouts.
- Wide Format Handling: Accommodates foil web rolls up to 1450 mm width & 250 mm dia.
Premium UV/IR Curing Tunnel
Integrated ZP-106-UV-SZ curing section engineered for high-solid UV chemistry, high-gloss spot varnishes, and instant drying.
- 35 kW Total UV Power: Instant curing at speeds reaching up to 4,000 sheets per hour.
- Dual UV + IR Technology: 3 UV lamps + 2 IR lamps configured as standard for deep thermal curing.
- Modular Customization: Adjustable lamp quantities tailored to match custom varnish formulations.
Automatic Paper Collector
Precision high-speed stacking delivery unit smoothly collects finished sheets up to 1060 × 750 mm without edge scuffing or sheet jamming.
- Synchronized Stacking: Rated at 2 kW power, matching curing throughput flawlessly.
- High-Pile Capacity: Extended stacking height reduces pallet changes and operator fatigue.
- Neat Side Pneumatic Jogging: Aligns edges with precision for immediate subsequent die-cutting.
Engineered for High-Yield Commercial Production
Designed specifically to withstand 24/7 demanding industrial packaging environments while cutting consumable costs.
Massive Foil Cost Savings
With smart skip-foil and pull-back mechanics, the QC-LTS series ensures maximum utilization of metallic foil webs, reducing scrap by up to 30–45% on partial designs.
Reduced Labor Footprint
By linking screen application, cold foiling, curing, and automated delivery in-line, plants eliminate two intermediate manual handling operators per shift.
Broad Substrate Versatility
From flexible coated paper (90 gsm) to heavyweight rigid cartonboard (450 gsm), vacuum-assisted conveyor guides maintain flawless registration without curvature deformation.
High-Throughput Curing
A robust 35 kW UV power bank with 3 UV & 2 IR lamps enables true continuous high-speed runs up to 4,000 sheets/hour without thermal warpage.
Extra-Large Sheet Capability
Model QC-145-LTS handles up to 1500 × 1050 mm formats, ideal for gang-run luxury paper bag layouts, multi-up shopping bags, and large display cartons.
Flexible Modular Integration
Can be deployed as an entire turnkey line or integrated downstream of your existing automatic screen press to instantly modernize post-press capability.
Premium Surface Finishes Supported
Elevate your packaging brand value with stunning visual and tactile embellishments applied continuously in a single pass.
High-Gloss Cold Foil
Flawless gold, silver, holographic, and tinted metallic foil transfer with crisp fine-line resolution.
Spot UV Varnish
Selective high-build gloss coatings creating brilliant localized contrast against matte laminated backings.
Cast & Cure Patterns
Diffraction holographic micro-embossing cured inline for dynamic security and light reflection.
Textured & Matte Effects
Specialty screen-applied abrasive, soft-touch, and sand-feel UV varnishes cured cleanly without blocking.
Engineered for Demanding Packaging Sectors
Optimized for high-volume converters producing premium retail packaging where quality and presentation are vital.
Luxury Paper Bags & Boutique Totes
Ideal for multi-up shopping bag sheets (157–300 gsm art paper and kraft), embellishing brand logos and accents with crisp cold foil and protective UV finishes.
Large-Format Folding Cartons
Handling sheets up to 1500 × 1050 mm for consumer electronics, small appliances, and luxury gift presentation master boxes.
Cosmetics & Perfumery Packaging
Delivers precise micro-line registration for intricate gold filigree, silver typography, and high-gloss spot relief on high-end beauty boxes.
Wine, Spirits & Beverage Boxes
Heavyweight board finishing (up to 450 gsm) requiring scuff-resistant spot gloss and premium cold foiling for top-shelf liquor packaging.
Commercial Post-Press Trade Finishers
A rapid changeover solution enabling contract embellishers to handle both short-run specialty jobs and high-volume commercial contracts efficiently.
Confectionery & Luxury Food Tins/Boxes
Safe, odor-free, fully cured UV finishes that satisfy structural durability and visual appeal for seasonal and holiday gourmet packaging.
Comprehensive Engineering Parameters
Strict technical parameters for the QC-LTS Lite Cold Foil Series and the ZP-106-UV-SZ Premium UV Cure & Automatic Collector.
Station 1 & 2: QC-LTS Lite Cold Foil Machine Series
| Item / Parameter | QC-106-LTS | QC-130-LTS | QC-145-LTS |
|---|---|---|---|
| Maximum Sheet Size | 1100 × 780 mm | 1320 × 880 mm | 1500 × 1050 mm |
| Minimum Sheet Size | 540 × 380 mm | 540 × 380 mm | 540 × 380 mm |
| Maximum Printing Size | 1080 × 780 mm | 1300 × 820 mm | 1450 × 1050 mm |
| General Paper Weight Range | 90 – 450 g/m² | 90 – 450 g/m² | 90 – 450 g/m² |
| Cold-Foiling Paper Weight | 157 – 450 g/m² | 157 – 450 g/m² | 157 – 450 g/m² |
| Max. Foil-Roll Diameter | 250 mm | 250 mm | 250 mm |
| Max. Foil-Roll Width | 1050 mm | 1300 mm | 1450 mm |
| Conveying Speed | 500 – 4,000 sheets/hour | 500 – 3,800 sheets/hour | 500 – 3,200 sheets/hour |
| Cold-Foiling Speed | 500 – 1,500 sheets/hour | 500 – 1,500 sheets/hour | 500 – 1,200 sheets/hour |
| Total Connected Power | 13 kW | 15 kW | 17 kW |
| Machine Net Weight | Approx. 1.3 Tons | Approx. 1.4 Tons | Approx. 1.6 Tons |
| Dimensions (L × W × H) | 2100 × 2050 × 1500 mm | 2100 × 2250 × 1500 mm | 2100 × 2450 × 1500 mm |
| Advanced Functions | Foil Pull-Back Function • Skip-Foil Function • Screen Printer Synchronization (Semi/Full Auto) | ||
Station 3 & 4: ZP-106-UV-SZ Premium UV Cure Machine with Paper Collector
| Specification Parameter | Detailed Engineering Value | Operational Function & Notes |
|---|---|---|
| Equipment Model | ZP-106-UV-SZ | Integrated Premium UV Curing & Automatic Sheet Collector |
| Maximum Sheet Size | 1060 × 750 mm | Optimized for standard 106/104 format packaging runs |
| Maximum Processing Speed | Up to 4,000 sheets/hour | Full synchronization with upstream screen and foiling speeds |
| UV Dryer Section Power | 35 kW | High-output electronic UV power supply for rapid photo-polymerization |
| Paper Collector Section Power | 2 kW | Pneumatic jogger and motorized high-pile lift mechanism |
| Overall Machine Dimensions | 5630 × 2000 × 1450 mm (L × W × H) | Low-profile, ergonomic tunnel with accessible maintenance panels |
| Standard Lamp Configuration | 3 UV Lamps + 2 IR Lamps | Combined ultraviolet photo-cure + infrared deep thermal drying |
| Lamp Quantity Customization | Fully Customizable | Quantities can be increased/reduced per specific coating chemistries |
| Primary Machine Functions | Instant UV Varnish & Adhesive Curing • Heavy-Duty Automatic Paper Collection | |
Manufacturing Excellence & Overseas Lifecycle Support
We deliver more than machinery—we provide complete commissioning, technical training, and responsive after-sales support worldwide.
Rigorous Factory Testing
Every unit undergoes strict dynamic mechanical trials, electrical safety validation, and continuous test runs with client substrates prior to export crating.
On-Site Overseas Commissioning
Our certified field engineers provide on-site installation, mechanical leveling, optical sensor calibration, and integration with your existing screen presses.
Comprehensive Operator Training
Full technical training covers foiling tension control, pull-back programming, UV lamp maintenance, troubleshooting, and process parameter optimization.
Frequently Asked Questions
Get answers regarding compatibility, substrate handling, and line configurations.
How does the Skip-Foil and Foil Pull-Back function save material?
When embellishing non-continuous graphics or partial zones on a paper bag sheet, the QC-LTS electronic controller pauses foil feeding during unprinted gaps and repositions (pulls back) unspent foil sections for the subsequent sheet, dramatically reducing foil scrap.
Can the QC-LTS connect with any screen printing machine brand?
Yes. The QC-LTS series is engineered with universal synchronization interfaces designed to link with both semi-automatic and fully automatic screen printing presses of various standard makes.
What is the maximum paper thickness and size supported?
The system reliably conveys paper from 90 to 450 g/m² (specified cold foiling range: 157–450 g/m²). The QC-145-LTS handles sheet dimensions up to 1500 × 1050 mm with a maximum printing format of 1450 × 1050 mm.
Can the UV and IR lamp arrangement in the ZP unit be customized?
Yes. While the standard configuration comes with 3 UV lamps (35 kW total dryer power) and 2 IR lamps, the quantity and power levels of both UV and IR sources can be customized based on your specific ink/varnish chemistries.
Transform Your Large-Format Packaging Production
Upgrade to an integrated inline cold foil, UV curing, and automatic delivery finishing line. Talk to our engineering specialists today for technical layout drawings, custom quotes, and sample testing.