Unilin Flooring North Carolina

Laminate Flooring Defects

Laminate Flooring Defects

Before pressing – loose stack of paper and HDF

After pressing – HDF and

paper solidified into block of cured resin

Milky

Controls – visual inspection at Press, chemistry control at Impreg, automated inspection at C/M

Bubbles trapped in resin

create milky appearance

Laminate Flooring Defects Décor mis-alignment

Printed patterns don’t line up when plank ends joined

together

Caused by saw setup issue or unexpected paper width

changes

Controls – frequent inspections, camera alignment system, Impreg dept’s control of width

Laminate Flooring Defects

White spot

Caused by damp clump in interior of HDF core; creates weak spot

during pressing

Controls – HDF manufacturer process controls, visual inspection of pressed boards and finished planks

Laminate Flooring Defects

White spot

Laminate Flooring Defects

Blow-out

Moisture issue with raw HDF boards.

Controls – moisture control during HDF manufacture; Press inspection

Laminate Flooring Defects

White line

Controls – changeover checklist, visual inspection, frequent profile measurement

Tongue profileNormal edge

Edge with “white line” defect

Caused by incorrectly positioned tooling creating “micro-bevel” along edge

Laminate Flooring Defects Overwood

Controls – assembly inspection, CMM measurement

AKA “ledging”, “proud edges”, “height difference”

Defect - Bubble

Defect - Milky

Defect – Needlepoint blisters

Defect – White Spot

Defect – Insect infestation