Utjecaj aditiva na reološka svojstva škrobnog ljepila

Horvat, Majda (2014) Utjecaj aditiva na reološka svojstva škrobnog ljepila. Master's thesis - Graduate Programme. Grafički fakultet. [Mentor: Lajić, Branka].

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Abstract

Intenzivnim razvojem industrije i tehnologije na tržištu se javlja sve veća potreba za raznim ambalažnim materijalima. Jedan od najstarijih i najviše korištenih ambalažnih materijala je valoviti karton. Kako bi se zadovoljili svi zahtjevi naručitelja ambalaže, u proizvodnom procesu izrade valovitog kartona koriste se različite vrste i gramature papira, vrste i kombinacije valova. Isto tako veoma su važna svojstva adhezivnog sredstva korištenog u procesu izrade valovitog kartona. U ovom radu ispitan je utjecaj aditiva na reološka svojstva škrobnog ljepila: viskozitet, točku želiranja i količinu suhe tvari. Osim stalne kontrole reoloških svojstava, obavljana je kontrola kvalitete gotovog proizvoda. Na stroju za proizvodnju valovitog kartona obavljene su redukcije u smislu uštede ljepila, temperature i energije s krajnjim ciljem povećanja produktivnosti i očuvanjem kvalitete. Na temelju obavljenih mjerenja donesen je zaključak o isplativosti dodatka aditiva u recepturu škrobnog ljepila za proizvodnju valovitog kartona, njegovim prednostima i nedostacima.

Item Type:	Master's thesis - Graduate Programme
Mentor name:	Lajić, Branka
Defence date:	24 September 2014
Abstract in english:	The intensive development of industry and technology has lead to increased need for packaging materials. One of the oldest and most used packaging materials is corrugated cardboard. To fulfill all the customers needs, there are different types and paper grammages used, as well as flute types and combinations. Very important component in corrugated cardboard production is adhesive and its properties. This work is testing an impact of additive on rheology properties of starch glue: primarily viscosity, gel point and dry component of starch glue. Apart from constant control and measurements of rheology, there is quality control of final product – corrugated cardboard. There are reductions made on corrugator, in sense of saving glue, temperature and energy. Final goal of this testing is greater productivity without quality loss. Conclusions are based on measurements, and they are showing cost effectiveness of additive in starch glue receipt, as well as pros and cons of using additive.
Uncontrolled Keywords:	valoviti karton, škrob, aditiv, viskozitet, točka želiranja
Keywords in english:	corrugated cardboard, starch, additive, viscosity, gel point
Subjects:	TECHNICAL SCIENCES > Graphic Technology
Institution:	Grafički fakultet
City:	Zagreb
Number of Pages:	43
Callnumber:	laj 2014 horm
Inventory number:	DB406
Depositing User:	Antonia Grgurović
Status:	Unpublished
Date Deposited:	29 Sep 2014 07:21
Last Modified:	29 Sep 2014 07:21
URI:	http://eprints.grf.unizg.hr/id/eprint/2207

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