请教：丝印酒精测试时是用工业酒精还是医用酒精

willxiao

请教各位大虾，
丝印酒精测试时是用工业酒精还是医用酒精。EN 60335-1 里有说这个吗？我刚下了个中文版的没找到。 在哪个标准里面可以找得到呢？
谢谢！

steven_rong

我们都用工业酒精

kimxiao

当然是工业酒精的.

xuxiaomiao

有哪位兄台知道需要浓度是多少吗？有要求吗？

huwei0032

75%酒精测试    将1.5KGF的制具的底部绑上白棉纱布，蘸上75%的确酒精在印刷的图案上往返30个来回（约15SEC）
制品印刷图案不可有脱落/缺口断线/油墨粘附不良等可允许颜色偏淡，但印刷图案应清晰不模糊，否则为不合格
95%酒精测试    方法和要求同上
75%酒精测试为通用标准
95%酒精测试为常用标准

GORDONCHEN

学习了，谢谢！

xuxiaomiao

谢谢兄弟 学习了

wfy1203

无水乙醇，又叫分析纯来着

stoicchen

原帖由 willxiao 于 2009-9-26 21:00 发表
请教各位大虾，
丝印酒精测试时是用工业酒精还是医用酒精。EN 60335-1 里有说这个吗？我刚下了个中文版的没找到。 在哪个标准里面可以找得到呢？
谢谢！

标准才是标准，山寨就是山寨（并不是说山寨一定比标准差)。但是一定要在fail之前心里有底，你不认真,工厂会认真,客人会认真。

如果用工业酒精，fail了，并不能判定丝印fail。工厂用的工业酒精本来就是清除顽固污垢的。没有更好选择的情况下，个人认为医用酒精比工业酒精好

IEC60335-1
7.14 The markings required by the standard shall be clearly legible and durable.
Compliance is checked by inspection and by rubbing the marking by hand for 15 s with a
piece of cloth soaked with water and again for 15 s with a piece of cloth soaked with
petroleum spirit.
After all the tests of this standard, the marking shall be clearly legible. It shall not be easily
possible to remove marking plates nor shall they show curling.
NOTE 1 In considering the durability of the marking, the effect of normal use is taken into account. For example,
marking by means of paint or enamel, other than vitreous enamel, on containers that are likely to be cleaned
frequently, is not considered to be durable.
NOTE 2 The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics
content of 0,1 % by volume, a kauri-butanol value of 29, an initial boiling point of approximately 65 °C, a dry point
of approximately 69 °C and a specific mass of approximately 0,66 kg/l.