Kvaliteta knjige od recikliranog papira

Jušić, Maja (2013) Kvaliteta knjige od recikliranog papira. Master's thesis - Graduate Programme. Grafički fakutet. [Mentor: Babić, Darko].

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Abstract

Reciklirani papir koristi se u knjigoveštvu u obliku raznih kartona i ljepenki, koji se koriste u tvrdom uvezu knjige za izradu višedijelnih tvrdih korica. Osim za tu namjenu, reciklirani papir se proizvodi i kao pisaći, za proizvodnju spiralno i meko uvezanih kolegij blokova. U radu se ispituje mehanička čvrstoća recikliranih papira u funkciji kvalitete mekog uveza knjige. Preko sastava, mehaničkih svojstava i načina izrade papira od primarnih vlakana, uspoređuju se svojstva recikliranih papira, te se ispituje njegova isplativost u korištenju za meki uvez knjige. Meko uvezana knjiga spada u složene tipove uveza, a primarno se koristi u proizvodnji školskih udžbenika te jeftinijih beletrističkih izdanja, odnosno za knjige za višekratnu upotrebu. U istraživačkom dijelu, ispituje se čvrstoća knjižnog bloka izrađenog od 3 vrste papira, od kojih su dvije vrste reciklirani papiri s različitim postocima udjela recikliranog vlakna, dok je jedan izrađen od 100% primarnog vlakna. Izrađeni uzorci ispituju se na kidalici. Pojedinom knjižnom bloku statički se opterećuju listovi, čiji je položaj prethodno definiran, dok ne dođe do kidanja, te su rezultati sila kidanja grafički prikazani. Grafovi pokazuju smanjenu čvrstoću knjižnog bloka kod 100% udjela recikliranog vlakna u papiru, dok kombinacija recikliranog i primarnog vlakna daje najbolju čvrstoću. Na smanjenu čvrstoću slijepljenog spoja utječu promijenjena svojstva vlakna zbog recikliranja, te čestice nečistoće zaostale u papiru.

Item Type:	Master's thesis - Graduate Programme
Mentor name:	Babić, Darko
Defence date:	27 February 2013
Abstract in english:	Recycled paper are used in bookbinding in the form of various cardboards, which are used in making hardcover books to create multipart hardback. Except for this purpose, recycled paper is produced as a writing paper, for production of a spiral and soft binded blocks. This paper investigates the mechanical strength of recycled paper in the function of quality in soft bookbinding. Through composition, mechanical properties and methods of making paper from the virgin fiber, properties of recycled paper are compared, and its effectiveness in the use of soft binding books is examined. Soft bound book falls into complex types of binding, and is used primarily in the production of school textbooks and fictional cheaper editions of books that are reusable. In the research part, examines the strength of the book block made of three kinds of paper, some of which are two types of recycled paper, with different percentages of recycled fiber, while the one is made from 100% virgin fiber. Made samples are tested on a pull tester. Particular book block static loads the leaf, which position is previously defined, until it comes to tearing, and the results of breakout forces are presented graphically. Graphs showed reduced strength book at 100% of recycled fibers in paper, while a combination of virgin and recycled fiber provides the best strength. The reduced strength of the adhesive joint influence altered fiber characteristics due to recycling and remaining of filth in the paper.
Uncontrolled Keywords:	reciklirani papir, primarno vlakno, meko uvezana knjiga, čvrstoća knjižnog bloka
Keywords in english:	soft bookbinding, book block strenght, virgin fiber, recycled fiber
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakutet
City:	Zagreb
Number of Pages:	58
Callnumber:	bab 2013 juš
Inventory number:	DB220
Depositing User:	Dora Budić
Status:	Unpublished
Date Deposited:	16 Apr 2014 10:41
Last Modified:	16 Apr 2014 10:41
URI:	http://eprints.grf.unizg.hr/id/eprint/1569

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