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Case Study · Confectionery

Thermal Inkjet vs Thermal Transfer Overprinting

How leading confectionery manufacturers in Pakistan reduced costs and improved reliability by switching to TIJ on flexible packaging lines.

DOWNTIME
Operational Efficiency
Total cost
Coding & marking on confectionery packaging line
Industry
Confectionery Manufacturing · Pakistan

01 — Executive Summary

Interlink Engineering compared TIJ and TTO for date and batch coding on flexible packaging — then deployed TIJ at two major confectionery manufacturers with measurable savings.

The results demonstrated lower operating costs, reduced maintenance, improved uptime, and simplified line operation. For many flexible packaging applications, Thermal Inkjet emerged as the superior solution.

02 — Background

Why we challenged TTO

Many confectionery manufacturers traditionally use Thermal Transfer Overprinters to print manufacturing & expiry dates, batch numbers, prices, and promotional codes. While proven, TTO requires consumable ribbons, regular maintenance, and frequent operator intervention.

  • Manufacturing dates
  • Expiry dates
  • Batch numbers
  • Prices
  • Promotional codes

03 — Methodology

Eight evaluation axes

01Print quality
02Consumable costs
03Maintenance requirements
04Downtime
05Ease of use
06Spare parts cost
07Operator dependency
08Total cost of ownership

04 — Implementation

Deployed on high-speed lines at two confectionery plants.

Industry
Confectionery
Application
Date & batch on flex film
Locations
Two plants, Pakistan
Environment
Continuous high-speed

05 — Results

Before TTO → After TIJ

Metric
Before (TTO)
After (TIJ)
Ribbon Consumption
High
Eliminated
Printhead Maintenance
Frequent
Minimal
Mechanical Wear
High
Very Low
Operator Intervention
Frequent
Minimal
Downtime
Higher
Significantly Reduced
Total Operating Cost
High
Lower
Print Quality
Excellent
Excellent

06 — Key Benefits

Outcomes the line teams felt every shift.

Cost Savings

Elimination of ribbon usage and lower maintenance reduced overall coding costs significantly.

Reduced Downtime

Simplified design with fewer moving parts improved machine availability.

Easy Operation

Operators no longer needed to manage ribbon threading and frequent adjustments.

Lower Maintenance

Reduced mechanical wear minimized spare parts replacement.

Consistent Print Quality

Sharp, high-resolution codes maintained throughout production.

07 — Where TIJ Fits

Recommended applications

Beyond confectionery, TIJ excels on porous and semi-porous substrates across food, personal care, and pharma packaging.

Biscuits & confectionery
Snacks & chips
Tea & coffee
Frozen foods
Personal care sachets
Pharmaceutical pouches

08 — Conclusion

“TIJ has proven to be a reliable, low-maintenance, and cost-effective alternative — outperforming TTO across many packaging applications.”
— Interlink Engineering, Field Report

Is TIJ right for your line?

If you currently use TTO and want to reduce operating costs without compromising print quality, our team can run a customized feasibility study for your application.