BOARD PRODUCTION CONTROL THE WASHBOARD EFFECT CORRCHECK – NEW MEASUREMENT TECHNOLOGY FOR CORRUGATED BY DIPL.ING. LUKAS PESCOLLER OF PERET GMBH e success of The any success package linked clsoelyistolinked its clsoely constant. variations and variations the washboard of isany package to itsProcess constant. Process and the washboard ppearance. Aappearance. global market leads to stronger effect can leadeffect to high costs because waste, idle of waste, idle A global market leads to stronger can lead to high of costs because ompetition with similar products offered to potential machine time, discussions with discussions customers, with additional competition with similar products offered to potential machine time, customers, additional uyers. The appearance of appearance the packaging thepackaging only bad quality lossrebates of image. buyers. The of isthe is the only rebates bad and quality and loss of image. ossibility to make a product standa out from stand others.out from others. possibility to make product astics, metal,Plastics, glass, metal, wood, glass, cartonboard A simple number, quantifying the quantifying washboard the effect wood, and cartonboard and A simple number, washboard effect orrugated arecorrugated suitable materials and lamination, in a repeatable, to understand is are suitable materials and lamination, in aeasy repeatable, easy tomarner understand marner is nting and labelling additional value to needed. As in needed. other applicating such as colour such or as colour or printingcan andgive labelling can give additional value to As in other applicating ackaging. density control, density this number canthis benumber used in customer packaging. control, can be used in customer contracts. Agreements the quality canthe bequality can be contracts.about Agreements about orrugated offers several offers uniqueseveral advantages easily defined. easily defined. Corrugated unique advantages ompared to other materials-it’s in strength compared to otherhigh materials-it’s high in strength hile low in weight. Highin volumetric efficiency is To meet this PERET has developed the developed the while low weight. High volumetric efficiency is requirement To meet this requirement PERET has chieved through good stacking It is flexible Checker. It’s aChecker. carrera It’s a carrera achieved throughstrength. good stacking strength.CORRCHECK-Corrugated It is flexible CORRCHECK-Corrugated box design, low costdesign, (even low in small based,and hand-held tool hand-held that measures of the surface of in box costvolumes) (even in and small volumes) based, tool the thatsurface measures vironmentallyenvironmentally friendly. Corrugated offers excellent offers corrugated a non-contact In a manner. few friendly. Corrugated excellent in corrugated in amanner. non-contact In a few otection for the productfor whether used as simple usedseconds, microscopic surface is protection the product whether as simplethe seconds, the undulating microscopic undulating surface is pping containers or as consumer analysed over analysed approximately 40mm taking more shipping containers or presentation as consumer presentation over approximately 40mm taking more ackages. Unfortunately, corrugated does not than The resulting The resulting packages. Unfortunately, corrugated does 6,000 not depth than measurements. 6,000 depth measurements. ways exhibit aalways flat top surface-resulting in printing exhibit a flat top surface-resulting in printing ues such as dot gain variations, density variations, issues such as dot gain variations, density variations, apping variations and varnish variations. trapping variations and varnish variations. uring the corrugating process, starch process, is applied to is applied to During the corrugating starch e peaks of thethe flutes andof bonds themand to the liner.them As to the liner. As peaks the flutes bonds e starch dries the it shrinks, the liner into thethe liner into the starchstretching dries it shrinks, stretching lley betweenvalley the flutes. The more starchThe applied, between the flutes. more starch applied, e more waterthe hasmore to evaporate, more the liner water hasthe to evaporate, the more the liner l be stretched, starchthe applied, the more willthe bemore stretched, more starch applied, the more ater has to evaporate, more the liner bethe liner will be water has the to evaporate, the will more etched, the more washboarding appear. There stretched, the morewill washboarding will appear. There a relationship isbetween the amount of starch used of starch used a relationship between the amount nd washboarding. and washboarding. e moisture content of the content air, the paper the paper and the The moisture of the and air, the ach influences the quality of the strach influences thefinished quality product. of the finished product. gh atmospheric humidity, high moisture in High atmospheric humidity,content high moisture content in e paper fibrethe and high fibre moisture in the content in the paper and content high moisture arch will swell strarch the board theand amount of the amount of will and swellreduce the board reduce arch applied. starch There isapplied. a linear There relationship between is a linear relationship between ater content and washboard effect-the higher the water content and washboard effect-the higher the ater content, the lower the washboarding is. water content, the lower theeffect washboarding effect is. owever, thereHowever, is a limit there in applying water to the water to the is a limit in applying ocess. The water needsThe to evaporate during drying, during drying, process. water needs to evaporate us slowing down the process thus slowing downand the occasionally process and occasionally amaging thedamaging board surface. Side surface. effects like the board Side effects like ockling or honeycomb appear when the waterwhen the water cockling may or honeycomb may appear ontent is too high. Because differs content is tooevery high. corrugator Because every corrugator differs size, age, components, and many other in size, age,format, components, format, and many other arameters, it isparameters, essential to itfind the optimal settings is essential to find the optimal settings control the to process keep the controland the toprocess and process to keep the process 60 Washboard effect and fluting defects on packaging could be seen as a message about the quality of the product itself. Relationship between amount of starch and washboard effect BOARD PRODUCTION washboard effect number-WBE-is displayed with displayed a washboard effect number-WBE-is with a resolution of 1 µm. resolution of 1 µm. Cockling and Honeycomb effect due to excessive moisture The CORRCHECK enables you to measure yourto board The CORRCHECK enables you measure your board directly as it comes off of corrugator. There is no directly as the it comes off of the corrugator. There is no need to prepare samples for measurement. need to prepare samples for Simply measurement. Simpl place the device onto surface to and start to place the the device ontoand thestart surface measure. If the measure. resulting WBE higher than If theis resulting WBEallowed is higher than allowed corrective actions can be takencan immediately. corrective actions be taken immediately Preliminary testing in real testing world applications Preliminary in real worldare applications are showing an excellent withcorrelation the visualwith the visua showing correlation an excellent appearance of the board.ofDepending the appearance the board.onDepending on the application and the corrugated application and the composition, corrugated composition different tager WBE numbers used. different tagerare WBEtypically numbers are An typically used. An objective measurement for the washboard objective tool measurement tool for the washboard effect will allow effect you to will define your parameters allow youquality to define your quality parameter upfront, as it upfront, done for otherforproduction as most it done most other production parameters. parameters. The CORRCHECK new parameters forparameters the The offers CORRCHECK offers new for the corrugated industry. It is industry. now possible to offer corrugated It is now possible to offe consisntent, high quality products to packaging consisntent, high quality products to packaging buyers. As in any other environment, buyers. As production in any other production environment there is but onethere simple truth-quality means measure, is but one simple truth-quality means measure measure and measure. measure and measure. Packaging Solution www.tosijasindo.com [email protected] +62 21 75902726 CORRCHECK-the ideal measurement tool for corrugated board High end application: WBE>0.007 is visible SMS C300 is a modified tapioca starch product, applied in a corrugated board adhesive formulations. SMS C300 is suitable for use on single facer and double backer for all types of corrugated board and glue kitchen Easily Dissolved character as peak viscosity during dissolution is low Stable Viscosity gives a more consistent operate on the machine and a better board quality Good Water Retention which leads to better bonding strength Less Consumption Less Consumption of glue due to better distribution allowing good bond strength with less glue www.tosijasindo.com [email protected] Packaging Solution +62 21 75902726
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