P0004 - Emhart FleXinspect Guide to Container Inspection
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Emhart Glass SA - Hinterbergstrasse 22 - CH6330 Cham 2 - Switzerland - Telephone +41 41 749 42 00 - www.emhartglass.com - Europe, Asia, USA P0004 Guide to Container Defects Finish Defects General Defects Neck Defects Shoulder Defects Sidewall & Body Defects Base Defects BROKEN WARE Ware which is cracked or broken into pieces. HORIZONTAL TEAR A rough crack on the glass surface oriented horizontally. VERTICAL TEAR A rough crack on the glass surface oriented vertically. OUT-OF- SHAPE WARE (LEANER) Containers which are tilted to one side due to bottom not being level. OVER OR UNDER HEIGHT Height that exceeds or is below specification. STRUCTURAL DEFECTS Internal stresses in the container due to poor annealing. STUCK WARE A rough piece of glass on the outside of the container. UNEVEN OR BAD DISTRIBUTION Uneven wall thickness. BENT OR CROOKED FINISH A finish which has a bent or crooked appearance. BLISTERS Large bubbles in the glass BROKEN FINISH A finish which has cracks or actual pieces of glass broken out of it. BULGED FINISH A finish which is bulged out of shape. FINISH TEAR A finish which has a light surface crack in the threads or in the middle. TEARS UNDER FINISH Surface cracks which occur on or near the parting line between the neck and the finish. CHIPPED FINISH A finish from which a small section is broken on the top or side. CORKAGE TEAR A vertical surface crack located in the inside of the finish. CRIZZLED FINISH A finish with many fine surface fractures, mainly across the top. DIRTY OR ROUGH FINISH A finish which has a scaly appearance and which may even have black spots on it. NECK RING SEAM A protruding seam of glass running vertically up to the finish of the container. OFFSET FINISH A finish formed out of alignment, either vertically or horizontally. OVERPRESS/ WIRE EDGE A finish which has excessive glass projecting upward from the inside edge of the finish. BENT NECKS A neck where the finish is tilted to one side. CHOKED NECK OR BORE (NARROW NECK) An obstruction in the bore of the neck. DANNY NECK OR TEAR ON THE NECK A small surface section of glass torn from the neck of the bottle. DIRTY NECK A neck which has a dirty or scaly appearance. LONG NECK A neck that has been stretched longer than specified. PINCHED NECK A neck which has been pushed or pinched. STUCK GLASS PARTICLES Small glass particles stuck to the inside of the container. Most common in wide mouth ware. BIRD CAGE (BIRD SWING) A string of glass expanding across the inside of the container. BLACK SPOTS Small black specks in the container. BLANK AND MOLD SEAMS Relatively large seams extending from the shoulder to the container base. Blank seams tend to veer off from the mold seam. BLISTERS Large bubbles in the glass. BODY CHECKS A crack or fracture through the wall thickness in the body of the container. BODY DIMENSIONS Dimensions out of specification for various diameters and perpendicularity. BRUSH MARKS Fine vertical lines in the side or neck of a container. BULGED SIDES The sides of a container (usually panel shape) which are pushed out. COLD MOLDS Dappled or wavy appear- ance in the body of the container. DIRTY WARE Ware which has carbon or dirty deposits on it. DRAG MARKS A series of fine vertical laps near the shoulder or neck of the container. FREAKS A container so badly formed or squeezed out of shape that it can be seen at almost any distance. BLANK SIDE BLOW SIDE HOT OR CHECK PANELS Cracks through the container body on the edge or side, deep, V- shaped, going through the wall. LAP MARKS OR WRINKLES A slight fold on the surface of the glass–usually horizontal (can also be found on the finish). 750ml RECYCLABLE GLASS LETTER CHECKS Small cracks or fissures which occur from any lettering or embossing. LOADING MARKS Vertical laps on the surface of the container, may be in the body or neck or both. OIL MARKS Strings of small bubbles in the container. PRESSURE CHECKS Cracks through the container’s wall thickness characterized by thin, vertical cracks appearing at the seam. SEEDS Very small bubbles in the glass. SHEAR MARKS A C-shaped mark in the glass, attributable to the action of the shears. SPIKES A small projection of glass in the body of the container. SHOULDER TEAR Surface cracks on the shoulder of the containers. They are usually wavy in appearance. SUNKEN SHOULDERS A shoulder which is not fully blown up. THIN SHOULDERS A shoulder which has a thin section. SADDLE FINISH A gradual slope or dip in the finish that has a saddle like finish. SEEDS Very small bubbles in the glass. SPLIT FINISH A finish which has a crack across the top surface–extends from the top of the finish down towards the neck. STONES Small pieces of refractory or unmelted batch materials. TEAR UNDER FINISH A finish which has a small surface section of glass torn from under it. KNOCKOUT A small glass protrusion caused by a small chip in the mold seam. FLANGE A small ring of glass which is pressed out between the guide and neck ring. STONES Small pieces of refractory or unmelted batch materials. STUCK GLASS PARTICLES Small glass particles stuck to the inside of the container. Most common in wide mouth ware. SUNKEN SIDES The side of a container (usually panel shape) that is not fully blown up or may have sunk after release from the blow mold. SWAB WARE Residue left on the container from the IS Machine swabbing process. LIGHT OR THIN WARE Thin spots in the container, which are below the minimum acceptable level. WASH BOARDS A series of horizontal waves or folds on the side of the container. SIDEWALL STRESS Residual stresses left in the glass after annealing caused by foreign particles or dissimilar materials. BAFFLE MARKS A rough or damaged baffle seam on the bottom of the container. BASE CHECK Small cracks through the base layer that occur on or near the rounded part of the bottom contact surface. BASE LEANER A bottom which has sagged so that the container is unstable when placed on a flat surface. BASE SPIKES A small projection of glass in the bottom of the container. BLACK SPOTS Small black specks in the container. BLISTERS Large bubbles in the glass. DIRTY WARE Ware which has carbon or dirty deposits on it. OIL MARKS Strings of small bubbles in the container. S EEDS Very small bubbles in the glass. STONES Small pieces of refractory or unmelted batch materials. STUCK GLASS PARTICLES Small glass particles stuck to the inside of the container. Most common in wide mouth ware. SWAB WARE Residue left on the container from the IS Machine swabbing process. SWUNG BAFFLE The baffle mark has swung to one side and is not central in the bottom of the container. BASE STRESS Residual stresses left in the glass after annealing caused by foreign particles or dissimilar materials. LINE OVER A superfine groove across the sealing surface that can cause a container leak after the filling process. UNFILLED FINISH A finish which is incompletely filled, in the top, the bead, or the thread. DOWN WARE Ware that has fallen over and onto the conveyor.
description
Container glass defects guide
Transcript of P0004 - Emhart FleXinspect Guide to Container Inspection
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Emhart Glass SA - Hinterbergstrasse 22 - CH6330 Cham 2 - Switzerland - Telephone +41 41 749 42 00 - www.emhartglass.com - Europe, Asia, USA
P0004
Guide to Container Defects
Finish Defects
General Defects
Neck Defects
Shoulder Defects
Sidewall & Body Defects
Base Defects
BROKENWAREWarewhich is crackedor brokenintopieces.
HORIZONTALTEARA rough crackon the glasssurface orientedhorizontally.
VERTICALTEARA roughcrack onthe glasssurface orientedvertically.
OUT-OF-SHAPE WARE(LEANER)Containers which are tilted to one side due to bottom notbeing level.
OVER ORUNDERHEIGHTHeight thatexceeds or is belowspecification.
STRUCTURALDEFECTSInternalstresses in thecontainer dueto poorannealing.
STUCKWAREA roughpiece ofglass onthe outsideof thecontainer.
UNEVEN OR BADDISTRIBUTIONUneven wallthickness.
BENT ORCROOKEDFINISHA finish whichhas a bent orcrookedappearance.
BLISTERSLargebubbles inthe glass
BROKENFINISHA finish whichhas cracks oractual piecesof glass brokenout of it.
BULGEDFINISHA finish whichis bulged outof shape.
FINISHTEARA finish whichhas a lightsurface crackin the threadsor in themiddle.
TEARS UNDERFINISHSurface crackswhich occur on or near theparting linebetween the neckand the finish.
CHIPPEDFINISHA finish fromwhich a smallsection isbroken on thetop or side.
CORKAGETEARA verticalsurface cracklocated inthe inside of the finish.
CRIZZLEDFINISHA finish with many fine surfacefractures,mainly acrossthe top.
DIRTY ORROUGH FINISHA finish which has a scalyappearance and which mayeven have blackspots on it.
NECK RINGSEAMA protrudingseam of glassrunningvertically upto the finish ofthe container.
OFFSETFINISHA finish formedout of alignment,either verticallyor horizontally.
OVERPRESS/WIRE EDGEA finish whichhas excessiveglass project ingupward fromthe inside edgeof the finish.
BENTNECKSA neckwhere thefinish istilted toone side.
CHOKEDNECK ORBORE(NARROWNECK)An obstruction in the bore ofthe neck.
DANNY NECKOR TEAR ONTHE NECKA small surfacesection of glasstorn from theneck of thebottle.
DIRTYNECKA neckwhich has a dirty or scalyappearance.
LONGNECKA neck thathas beenstretchedlonger thanspecified.
PINCHEDNECKA neck whichhas beenpushed orpinched.
STUCK GLASSPARTICLESSmall glassparticles stuckto the inside ofthe container.Most commonin wide mouthware.
BIRD CAGE(BIRD SWING)A string of glass ex panding across the inside of the con tainer.
BLACK SPOTSSmall blackspecks in thecontainer.
BLANK ANDMOLD SEAMSRelatively largeseams extendingfrom the shoulderto the containerbase. Blank seamstend to veer offfrom the moldseam.
BLISTERSLarge bubblesin the glass.
BODYCHECKSA crack orfracturethrough thewall thicknessin the body ofthe container.
BODYDIMENSIONSDimensions out of specification for variousdiameters andperpendicularity.
BRUSHMARKSFine verticallines in the side or neck of a container.
BULGED SIDESThe sides of a container(usually panelshape) which are pushed out.
COLD MOLDSDappled orwavy appear -ance in the bodyof the container.
DIRTY WAREWare which hascarbon or dirtydeposits on it.
DRAG MARKSA series of finevertical laps nearthe shoulder orneck of thecontainer.
FREAKSA container sobadly formed or squeezed out of shape that it can beseen atalmost anydistance.
BLANK
SIDE
BLOW
SIDE
HOT OR CHECKPANELSCracks throughthe containerbody on the edgeor side, deep, V-shaped, goingthrough the wall.
LAP MARKS OR WRINKLESA slight fold onthe surface of the glassusuallyhorizontal (canalso be found on the finish).
750mlRECYCLABLE GLASS
LETTERCHECKSSmall cracks orfissures whichoccur from anylettering orembossing.
LOADINGMARKSVertical laps onthe surface ofthe container,may be in thebody or neckor both.
OIL MARKSStrings of smallbubbles in thecontainer.
PRESSURE CHECKSCracks through thecontainers wallthickness characterizedby thin, vertical cracksappearing at the seam.
SEEDSVery smallbubbles inthe glass.
SHEAR MARKSA C-shaped mark in the glass,attribut able tothe action of theshears.
SPIKESA smallprojection ofglass in thebody of thecontainer.
SHOULDERTEARSurface cracks on the shoulderof the containers.They are usuallywavy inappearance.
SUNKENSHOULDERSA shoulderwhich is not fully blown up.
THINSHOULDERSA shoulder which has a thin section.
SADDLEFINISHA gradualslope or dipin the finishthat has asaddle likefinish.
SEEDSVerysmallbubblesin theglass.
SPLIT FINISHA finish whichhas a crack across the topsurfaceextendsfrom the top ofthe finish downtowards the neck.
STONESSmall piecesof refractoryor unmeltedbatchmaterials.
TEAR UNDERFINISHA finish whichhas a smallsurface sectionof glass tornfrom under it.
KNOCKOUTA small glassprotrusioncaused by asmall chip inthe moldseam.
FLANGE A small ringof glasswhich ispressed outbetween theguide andneck ring.
STONESSmall piecesof refractoryor unmeltedbatchmaterials.
STUCK GLASSPARTICLESSmall glass particlesstuck to the inside ofthe container. Mostcommon in widemouth ware.
SUNKEN SIDESThe side of a container(usually panel shape) that is not fully blown up ormay have sunk afterrelease from the blowmold.
SWAB WAREResidue left on the containerfrom the IS Machineswabbingprocess.
LIGHT ORTHIN WAREThin spots inthe container,which arebelow theminimumacceptablelevel.
WASH BOARDSA series ofhorizontal wavesor folds on theside of thecontainer.
SIDEWALLSTRESSResidual stressesleft in the glassafter annealingcaused by foreignparticles ordissimilarmaterials.
BAFFLE MARKSA rough ordamaged baffleseam on thebottom of thecontainer.
BASE CHECKSmall cracksthrough the baselayer that occuron or near therounded part ofthe bottomcontact surface.
BASE LEANERA bottom whichhas sagged sothat the containeris unstable whenplaced on a flat surface.
BASE SPIKESA smallprojection of glass in the bottom of the container.
BLACK SPOTSSmall blackspecks in thecontainer.
BLISTERSLarge bubblesin the glass.
DIRTY WAREWare which hascarbon or dirtydeposits on it.
OILMARKSStrings of smallbubbles in thecontainer.
SEEDSVery smallbubbles inthe glass.
STONESSmall piecesof refractoryor unmeltedbatchmaterials.
STUCK GLASSPARTICLESSmall glassparticles stuck tothe inside of thecontainer. Mostcommon in widemouth ware.
SWABWAREResidue left on thecontainerfrom the IS Machineswabbingprocess.
SWUNGBAFFLEThe baffle markhas swung to one side and isnot central in the bottom of the container.
BASE STRESSResidual stressesleft in the glassafter annealingcaused by foreign particlesor dissimilarmaterials.
LINE OVERA superfinegroove acrossthe sealingsurface that can cause a con tainer leakafter the fillingprocess.
UNFILLEDFINISHA finish whichis incom pletelyfilled, in thetop, the bead,or the thread.
DOWN WAREWare that has fallen overand onto the conveyor.
