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Zmeny vybraných charakteristík kancelárskeho papiera v priebehu simulovaného starnutia
SYS 0077476 LBL 00000naa^^22^^^^^^^^450 005 20190401104849.4 100 $a 20150410d m y0sloc0103 ba 101 0-
$a slo $d eng 102 $a SK 200 1-
$a Zmeny vybraných charakteristík kancelárskeho papiera v priebehu simulovaného starnutia $d Changes of chosen characteristics of office paper during the process of simulated ageing $f Jarmila Geffertová, Anton Geffert 215 $c Obr. 320 $a Lit. 330 $a The aim of the article has been to follow the changes of the chosen characteristics of office paper during the process of simulated ageing. Simulated ageing caused the small increase of paper porosity, which was shown by the increase of air permeability by only 72 mL×min−1. The breaking length values retained their stability of up to 95 %, while the stability of tear index after 24-hour ageing was only 67 %. pH value of paper surface slightly decreased by 0.62 (93 % stability). After 200- second swelling the swelling ability of paper decreased by 15 %, what represented preservation of stability only up to 57.7 %. The brightness value decreased considerably too (by 20.6 % MgO) and shifting in colour space CIE L*a*b* was recorded as well. The differential spectra in monitored time intervals had similar trend with minimum of reflection at 430 nm. The biggest value changes of air permeability, tear index, pH of paper surface, swelling, brightness and reflectance were determined after 6-hour ageing. The values of the mentioned characteristics decreased only slightly in the following time intervals of ageing. 330 $a Cieľom tohto príspevku je sledovať zmeny vybraných charakteristík kancelárskeho bezdrevného grafického papiera vplyvom simulovaného starnutia. 463 -1
$1 001 sldk_un_cat*0077448 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 57, č. 1 (2015), s. 53-62 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2015 610 1-
$9 sldk_un_auth*h002611 $a papier $X paper 610 1-
$9 sldk_un_auth*0034030 $a simulované starnutie $X simulated ageing 610 1-
$9 sldk_un_auth*h001346 $a mechanické vlastnosti $X mechanical properties 610 1-
$9 sldk_un_auth*0031002 $a vzduchová priepustnosť $X air permeability 610 1-
$9 sldk_un_auth*h013113 $a napúčanie $X swelling 610 1-
$9 sldk_un_auth*h012586 $a optické vlastnosti $X optical properties 675 $a 676 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*p0039105 $a Geffertová $b Jarmila $f 1956- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 701 -1
$3 sldk_un_auth*p0016647 $a Geffert $b Anton $f 1955- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 801 -0
$a SK $b ZV001 $c 20150410 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/06-01-15-geffertova-geffert_0.pdf
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