公开(公告)号：JPS5961778A

公开(公告)日：1984-04-09

申请号：JP17241182

申请日：1982-09-30

Applicant: Toppan Printing Co Ltd

Inventor： IMAI TAKAYUKI ,  FUKUDA NOBUYOSHI

IPC: C09D11/00 ,  C09D11/16 ,  G01N31/00 ,  G01N31/22

CPC classification number: G01N31/225

Abstract: PURPOSE:To prepare ink capable of accurately detecting O2 during use, by a method wherein a solution A formed by adding a thiazine dye to a water or an alcohol soluble resin-containing solution and a solution B having a reducing agent added thereto are separately preserved to be made preservable for a long period of time and both solutions A, B are mixed in use. CONSTITUTION:A thiazine dye such as methylene blue and a reducing agent such as ascorbic acid are added to water or a solution containing alcohol soluble resin to be dissolved or dispersed therein to obtain an ink composition for detecting O2. The discoloration of this ink composition can be accerelated by adding an inorg. porous fine powder such as SiO2 or CaSiO3 to said ink compositon to promote the contact with oxygen. This ink composition is lowered in the detecting capacity thereof when a longtime is elapsed after preparation because of the coexistence of the reducing agent and, therefore, the resin solution containing the dye and the resin solution containing the reducing agnet are separately preserved to be made preservable for a long period of time. When food packing paper is printed with this ink composition, the diterioration of content due to oxygen can be detected by color change due to oxygen.

Abstract translation: 目的：为了制备能够在使用过程中精确检测O2的油墨，分别保存通过向水或含醇可溶性树脂溶液中加入噻嗪染料而形成的溶液A和添加有还原剂的溶液B的方法分开保存 长期保存，两种溶液A，B混合使用。 构成：向水或含有醇溶性树脂的溶液中加入亚甲基蓝等噻嗪染料，抗坏血酸等还原剂溶解或分散于其中，得到检测O2的油墨组合物。 这种油墨组合物的变色可以通过加入inorg来相关。 多孔细粉如SiO 2或CaSiO 3对所述油墨组合物促进与氧的接触。 由于还原剂共存，制备后经过了长时间后，这种油墨组合物的检测能力降低，因此含有染料的树脂溶液和含有还原性凝胶的树脂溶液分别保存成可保存 很长一段时间。 当用这种油墨组合物印刷食品包装纸时，可以通过氧气的颜色变化来检测由于氧气引起的含量的变化。