印染助剂
印染助劑
인염조제
Textile Auxiliaries
2015年
10期
56-60
,共5页
天然革%再生革%人工革%鉴别
天然革%再生革%人工革%鑒彆
천연혁%재생혁%인공혁%감별
natural leather%regenerated leather%artificial leather%identification
随着再生革和人工革生产技术的迅速提高,为了能使消费者简单快捷地辨别真伪,以撕裂法(有损)、燃烧法、湿热法、溶剂法、化学法、扫描电镜观察法、热重分析法和FTIR法等进行鉴定.试验得知,有损撕裂中发现天然革和再生革的断截面处拉出了纤维绒毛,人工革的断截面处暴露出缠绕的线条及基布;再生革和天然革可从纤维绒头的粗细、均匀程度和物理性能参数上加以区分;天然革和再生革燃烧时发出烧焦的羽毛气味,人工革发出刺鼻的气味;天然革耐有机溶剂,再生革在四氢呋喃中发生不同程度的卷曲,人工革溶解成细小颗粒;10%NaOH溶液中煮沸30 min,再生革和天然革会发生部分溶解,人工革形态变化不大;扫描电镜观察、热重分析和FTIR法可作为进一步论证依据.
隨著再生革和人工革生產技術的迅速提高,為瞭能使消費者簡單快捷地辨彆真偽,以撕裂法(有損)、燃燒法、濕熱法、溶劑法、化學法、掃描電鏡觀察法、熱重分析法和FTIR法等進行鑒定.試驗得知,有損撕裂中髮現天然革和再生革的斷截麵處拉齣瞭纖維絨毛,人工革的斷截麵處暴露齣纏繞的線條及基佈;再生革和天然革可從纖維絨頭的粗細、均勻程度和物理性能參數上加以區分;天然革和再生革燃燒時髮齣燒焦的羽毛氣味,人工革髮齣刺鼻的氣味;天然革耐有機溶劑,再生革在四氫呋喃中髮生不同程度的捲麯,人工革溶解成細小顆粒;10%NaOH溶液中煮沸30 min,再生革和天然革會髮生部分溶解,人工革形態變化不大;掃描電鏡觀察、熱重分析和FTIR法可作為進一步論證依據.
수착재생혁화인공혁생산기술적신속제고,위료능사소비자간단쾌첩지변별진위,이시렬법(유손)、연소법、습열법、용제법、화학법、소묘전경관찰법、열중분석법화FTIR법등진행감정.시험득지,유손시렬중발현천연혁화재생혁적단절면처랍출료섬유융모,인공혁적단절면처폭로출전요적선조급기포;재생혁화천연혁가종섬유융두적조세、균균정도화물이성능삼수상가이구분;천연혁화재생혁연소시발출소초적우모기미,인공혁발출자비적기미;천연혁내유궤용제,재생혁재사경부남중발생불동정도적권곡,인공혁용해성세소과립;10%NaOH용액중자비30 min,재생혁화천연혁회발생부분용해,인공혁형태변화불대;소묘전경관찰、열중분석화FTIR법가작위진일보론증의거.
With the rapid development of regenerated leather and artificial leather production technology, in order to enable consumers simply and quickly to identify the authenticity, tearing method (damage), combus-tion method, hot and humid method, solvent method, chemical method, SEM observation, thermo- gravimetric analysis and FTIR method were used for identification. It was found from the tearing tests that the fiber naps were pul ed out from the broken cross- section of fiber leathers, winding line and base fabric was exposed from artificial leather. The regenerated leather and natural leather could be identified from fiber thickness, unifor-mity and physical properties parameters. Natural leather and regenerated leather had charred feather smell at burning, and artificial leather emited a pungent odor. Natural leather resisted organic solvent, regenerated leath-er had different degree of curling in tetrahydrofuran, while artificial leather was dissolved into tiny particles. Re-generated leather and natural leather partly dissolved in 10%NaOH solution boiling for 30 min, the artificial leath-er changed little. SEM, TG and FTIR method could be applied as a basis for further argument.