Ikarashi Yoshiaki, Kaniwa Masa-aki, Iwama Masahiko, Yamanobe Hideo, Tsuji Kiyomi, Hasegawa Kazuo, Nakao Akemi, Tsuchiya Toshie
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyusho Hokoku. 2004(122):21-5.
It is important to investigate a cause of formaldehyde contamination exceeding a regulation limit value in a textile product. If formaldehyde was released from a textile product itself by treatment or processing with formaldehyde, an administrative guidance is given to a manufacture. On the other hand, when the formaldehyde migrated from other textile products or a furniture stand during displaying, an improvement instruction is performed to the store. Iwama et al. [Ann. Rep. Nagoya City Public Res. Inst., 42, 11-16 (1996)] developed a method for distinguishing fabric processing and migration by additional hydrolytic extraction using hydrochloric acid solution. This study was to confirm the reliability and stability of the method for knowing formaldehyde processing on textiles. Five laboratories evaluated three samples: unprocessed textile, processed textile and unprocessed but formaldehyde-migrated textile. For a processed textile sample, amounts of formaldehyde increased by additional extractions with acidic solution, so all laboratories judged that the sample had been treated with formaldehyde. In the cases of the other two samples, such increases were not observed in the extracts using acidic solution. All laboratories reported that these samples were not processed using formaldehyde but had absorbed a different level of formaldehyde by migration. In a series of experiments, the judgement about the existence of formaldehyde processing or migration is comparatively consistent among all laboratories. This validation study concluded that the distinguishing method adopting additional extractions with acidic solution is useful to find formaldehyde processing of textile, and to deal with processing and migration separately as a cause of formaldehyde contamination.
调查纺织品中甲醛污染超过规定限值的原因很重要。如果甲醛是通过用甲醛处理或加工从纺织品本身释放出来的，会向制造商发出行政指导。另一方面，当甲醛在展示过程中从其他纺织品或家具支架迁移过来时，会向商店发出改进指示。岩间等人[名古屋市公共研究所年报，42，11 - 16(1996)]开发了一种通过使用盐酸溶液进行额外水解萃取来区分织物加工和迁移的方法。本研究旨在确认该方法用于了解纺织品上甲醛加工情况的可靠性和稳定性。五个实验室对三个样品进行了评估：未加工的纺织品、加工过的纺织品和未加工但有甲醛迁移的纺织品。对于加工过的纺织品样品，用酸性溶液进行额外萃取后甲醛含量增加，所以所有实验室都判断该样品用甲醛处理过。在另外两个样品的情况下，在使用酸性溶液的提取物中未观察到这种增加。所有实验室都报告说，这些样品未用甲醛处理，但通过迁移吸收了不同水平的甲醛。在一系列实验中，所有实验室对甲醛加工或迁移存在情况的判断相对一致。这项验证研究得出结论，采用酸性溶液额外萃取的区分方法有助于发现纺织品的甲醛加工情况，并将加工和迁移作为甲醛污染的原因分别进行处理。
