#extrusion laminating machine

Insufficient Bond Strength in Extrusion Laminators: Causes & Solutions（2）

Reasons for and Solutions to Insufficient Lamination Fastness in Extrusion Laminating Machines (Part 1)

Technical Advantages of Extrusion Laminating Machines Laiyi Coating Machine Technology Insights Solvent-Free: No glues or solvents are used, eliminating VOC (Volatile Organic Compound) emissions and making the process highly eco-friendly.

High Bonding Strength: The molten polymer creates a permanent chemical bond with the substrate, effectively preventing delamination.

Excellent Barrier Properties: The multi-layer composite structure provides superior resistance against moisture, oxygen, oil, and light.

High Production Efficiency: Designed for high-speed continuous production, reaching operational speeds of 120–350 m/min.

Workflow of an Extrusion Lamination Machine

Feeding: Raw materials are delivered into the feed throat of the extruder via a conveyor belt or screw conveyor.

Melting: The raw materials are melted into a fluid state under the high-temperature environment inside the extruder.

Mixing: The molten materials are thoroughly blended in the mixing zone to ensure an even distribution of the different components.

Extrusion: The mixed material is extruded through a T-die to form a uniform molten film.

Lamination: The molten film is immediately coated onto a moving substrate, achieving a firm bond through the use of a chill roll and a pressure roll.

Cooling and Setting: The circulating cooling water system rapidly dissipates heat, ensuring the laminated film cools, flattens, and properly sets.

Laiyi Extrusion Lamination Machine Performance, Advantages

Laiyi Extrusion Machine Knowiedge Guide

Using LAlYl patented screw with characteristics of high revolving speed,high shear,high mixing,wear-resistant and energy-saving,to ensure the temperature difference between die lips and the polymer coming out of the die less than 30 ℃, which will greatly enhance the peeling strength.

The inner wall of the barrel and the surface of the screw are centrifugally cast with special technology,which has the characteristics of corrosion and wear resistance. lt is normally three times of the ordinary screw's service time.

Shaftless unwinder, equipped with auto-splicer, can achieve butt to butt splicing,thus to reduce the damage to corona and laminating rolls.

Heavy duty roll-pressing rewinder can achieve up to 300m/min auto-splicing with neat paper reel sides.

Optional automatic shaft pulling system, improves robotic level and reduces dependence on people

Main Functional Features of Automatic Extrusion Laminating Machine

Laiyi Lamination Machine Knowledge Guide

PLC Human-Machine Interface (HMI) Centralized Control: Integrates mechanical, electrical, and pneumatic systems into a unified design.

Fully Automatic Constant Tension Control: Ensures smooth and stable operation.

Photoelectric Web Guiding + Corona Treatment: Effectively enhances peel strength.

Dual-Station Unwinding and Rewinding: Supports non-stop roll changing for continuous production.

Hydraulic Screen Changer + Quick-Change Mechanism: Minimizes downtime during screen replacements.

Advanced Temperature Control System: Automatically regulates temperatures across individual heating zones.