Željko Hadžija1, Gorana Petković1, Suzana Pasanec Preprotić1

1Sveučilište u Zagrebu Grafički fakultet, Getaldićeva 2, Zagreb, Hrvatska


Mjerenjem prekidne sile kidanja na Page Pull Test uređaju određuje se čvrstoća ispitivanih uzoraka bešavno uvezanih knjižnih blokova s ciljem ispitivanja utjecaja različitih tehnika izrade, odnosno lijepljenja knjižnih blokova na kvalitetu gotovog proizvoda. Ispituje se utjecaj dvije tehnike lijepljenja, lepezastog lijepljenje i lijepljenja nakon mehaničke obrade hrpta (hrapavljenja) uz dodatak knjigoveške gaze. Usporedbom dobivenih rezultata sa smjernicama FOGRA instituta broj 71.006, rangiraju se i klasificiraju ispitivani uzorci, vrši njihova međusobna usporedba te kvalitativna i kvantitativna analiza dobivenih rezultata, kako bi se sa sigurnošću definiralo koja će tehnika lijepljenja omogućiti izradu čvršćih i kvalitetnijih knjižnih blokova, ujednačeniji nanos ljepila na svim dijelovima hrpta te ponovljivost procesa. Tehnika lijepljenja koja više udovolji svim navedenim zahtjevima i pokaže bolju čvrstoću knjižnih blokova, koristi će se u daljnjim istraživanjima adhezijskih spojeva, prilikom promatranja ostalih parametara koji utječu na kvalitetu adhezije i općenito na čvrstoću knjižnog bloka.
Ključne riječi: lepezasto lijepljenje, hrapavljenje, bešavna forma uveza, čvrstoća knjižnog bloka, lijepljeni spoj



Bookbinding strength is determined by measuring the tensile breaking force on Page Pull Tester to examine the impact of used binding technique on binding strength of the end product. Two techniques, double fan and perfect binding technique (spine roughing with the addition of bookbinding gauze) are investigated. Obtained result are compared with the FOGRA institute`s guidelines number 71.006, ranked and classified, but also compared mutually with their qualitative and quantitative analyse in order to define which used technique will produce more firmer and better quality book blocks, cause more uniform adhesive application across whole book spine and ensure repeatability of the process. Bonding technique that covers a larger number of all those above listed requirements and shows a higher tensile strength, is going to be used in further research of adhesive joints – during investigation of other parameters affecting the adhesion quality and the strength of the book block in general.
Keywords: double fan binding, perfect binding, adhesive binding, bookbinding strength, adhesive joint

Patrik Ervells latest collection is ironically titled “Software”ADIDAS ORIGINALS TUBULAR SHADOW. In the notes from the presentation, Ervell says he was interested in developing tension between nostalgia and sci-fi,NIKE ZOOM WINFLO 3 and even included 90s cyberpunk amongst his influences. Ervell developed this point of view by creating an imaginary software company called Idegen software systems. He then re-appropriated the company’AIR JORDAN XXXI MENs logo in several of the collection’s garments. Elsewhere,MBT TARIKI MEN mohair coats with oversized lapels made an appearance alongside mock neck tees,NIKE AIR JORDAN RETRO 5 police-inspired ribbed sweaters,MBT FORA GTX WOMEN flight bombers, and polyurethane leather coats. The setting was also suitably dystopian, and the resulting ambiance was something akin to if the creators of Deutschland 83 and Hackers met up and decided to create a collection… We mean that as a compliment.Yesterday afternoon,JORDAN CP3 IX MEN artist JR spent the day working on his latest collaborative piece with Daniel Arsham in Greenpoint,NIKE AIR MAX 90 Brooklyn,MBT KIMONDO GTX MEN NYC. Connecting the lines between art, architecture, dance and theater, Daniel Arsham has been known to subvert existing architectural structures in unconventional,NIKE CLASSIC CORTEZ NYLON playful ways; confusing and confounding the expectations of space and form. Source: Street Art News .