Common Problems in Paper Cup Production (And How to Avoid Them)
Introduction
Even with high-quality materials, Paper Cup production can sometimes face issues that lead to customer complaints, increased costs, or production delays. Understanding these problems—and how to avoid them—can help you save time and money.
1.Poor Coating Adhesion
The problem:The plastic coating (PE or PLA) may peel or separate from the paper during cup forming, especially under high temperature or high-speed production lines.
Causes:Uneven coating,Low-quality base paper,Improper heat control
Solution:Choose double-coated or high-uniformity PE paper, and work with suppliers who ensure consistent coating thickness and surface finish.
2. Paper Curling During Printing
The problem:Paper curls or jams during printing or die-cutting, slowing down production and causing waste.
Causes:Low moisture control in paper storage；Paper too thin or surface too rough；Poor humidity environment in the workshop
Solution:Use paper with balanced moisture content (7%-9%) and store in a temperature-controlled room. Ensure the supplier pre-tests for print compatibility.
3.Leakage After Cup Forming
The problem:Finished cups leak at the bottom seal or side seam, which can damage your brand reputation.
Causes:Incompatible sealing temperature；Coating layer too thin or uneven；Paper stiffness not suitable for cup forming
Solution:Ensure proper GSM (grammage) and stiffness of the base paper. Ask for cup-forming test videos or records from the supplier before large-scale orders.
Conclusion
Avoiding these common problems starts with using high-quality, properly tested raw materials. Working with an experienced and responsive supplier can make all the difference in your production efficiency and product quality.
Need reliable Paper Cup Raw Materials with proven performance? Contact us for technical specs and free samples! We supply PAPER CUP FAN,PE COATED PAPER,KRAFT PAPER,WATER BASED COATED PAPER,SBS PAPER,FBB C1S IVORY PAPER BOARD AND OTHER PACKING PAPER BOARD.
NANNING LVKE Paper Co.,LTD
CONTACT:VICKY LI
EMAIL:VICTORIA.LI@NNLVKE.COM
MOBILE/WHATSAPP:+8619977109815