Why do we need to re-mould and test the lidding film when we change the material?
Traditional lidding film is only suitable for single material containers due to the curing of the heat sealing layer formula, resulting in enterprises facing..:
▶ Multi-SKU warehousing pressure: PP cups, PET boxes, HDPE cans need to prepare a variety of lidding film, inventory costs soared;
▶ Frequent line debugging: switching materials when the heat sealing temperature / pressure reset, the average daily waste of 3.7 hours of labour;
▶ Increased risk of sealing leakage: PETG and other emerging materials without adaptive film, low yield rate of new products on the market.
▶ Revolutionary technology: a set of cover film to sweep the PP / PE / PET / PS / PETG five materials
Measured data (GB/T 21302 standard)
Container material Heat sealing strength Peeling force Negative pressure sealability
Container Material
Heat Seal Strength
Peel Strength
Negative Pressure Sealability
PP tray
19.2 N/15 mm
5.8 N
Pass the 70 kPa test
PET tray
16.5 N/15 mm
6.1 N
Pass the 65 kPa test
HDPE can
20.3 N/15 mm
5.3 N
Pass the 75 kPa test
PS bowl
18.7 N/15 mm
5.9 N
Pass the 60 kPa test
PETG tray
17.4 N/15 mm
6.0 N
Pass the 68 kPa test
Seamless switching of different containers on the same production line.
Scene 1: multi-material packaging for daily chemical industry
▸ A washing brand is used at the same time:
PP bottle (laundry detergent refill)
PET box (gel dispenser box)
HDPE cans (cleaning powder cans)
▶ Solution : Using the same roll of lidding film, only the heat sealing temperature needs to be adjusted (PP:160℃/PET:180℃/HDPE:155℃), and no modification of equipment is required.
Scenario 2: Food enterprise material upgrade
▸ A snack brand upgraded the PET box to PETG box (drop resistance + high permeability needs)
▶ The original pain point : the original cover film fit rate of only 76%.
▶ Results: No need to replace the lid film, heat sealing strength increased from 14N to 17.4N, 0 line downtime.
Customer evidence: cost reduction and efficiency can be seen
Case 1: the leading enterprises of prefabricated vegetables
▸ Requirements: at the same time to adapt to the PP microwave bowls (130 ℃ resistance), PET cold food containers (need to be anti-freeze)
▸ Results :
Lidding SKUs were reduced from 6 to 1, saving 40% of storage area;
Production line switching time reduced from 4 hours to 9 minutes, saving 830,000 man-hours per year;
Emergency production of PETG gift boxes during promotion season, direct mass production with 0 proofing.
Case 2: Cross-border exporter
▸ Demand: Europe and the United States customers specify HDPE cans, Japan and South Korea need PET bottles, domestic use PP box
▸ Results :
The single film is shipped globally, and the lead time is reduced from 45 days to 14 days;
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