申请人:NIPPON PETROCHEMICALS COMPANY, LIMITED
公开号:EP0167900A1
公开(公告)日:1986-01-15
A pressure-sensitive recording material of the type . which is prepared by using an electron donating dye-precursor that produces a color when the dye-precursor is brought into contact with an electron accepting color developer. The pressure-sensitive recording material is characterized in that the solvent for said dye-precursor comprises an alkylated fraction which is prepared by alkylating a by-product fraction with at least one alkyl group having 1 to 5 carbon atoms, the by-product fraction containing the components within the boiling range of 255 to 300°C on the atmospheric pressure basis and being obtained in the process for producing ethylbenzene or ethyltoluene from ethylene and benzene or toluene. The pressure-sensitive recordin'g material of the invention has scarcely offensive odor and can develop a dense color with a higher color developing rate.
一种.型压敏记录材料,其制备方法是使用一种电子供体染料前驱体,当染料前驱体与电子受体显色剂接触时产生一种颜色。该压敏记录材料的特征在于,所述染料前驱体的溶剂包括烷基化馏分,该烷基化馏分是通过烷基化副产物馏分制备的,副产物馏分至少含有一个具有 1 至 5 个碳原子的烷基,副产物馏分含有在常压下沸点范围为 255 至 300°C 的组分,并且是在从乙烯和苯或甲苯生产乙苯或乙基甲苯的过程中获得的。本发明的压敏记录材料几乎没有难闻的气味,而且能以较高的显色速度显现出浓密的颜色。