公开(公告)号：US5338866A

公开(公告)日：1994-08-16

申请号：US989566

申请日：1992-12-11

申请人： Yojiro Kumagae ,  Shigeo Fujita ,  Mansuke Matsumoto ,  Sayuri Wada ,  Shuuichi Hashimoto

发明人： Yojiro Kumagae ,  Shigeo Fujita ,  Mansuke Matsumoto ,  Sayuri Wada ,  Shuuichi Hashimoto

IPC分类号： B41M5/145 ,  B41M5/327 ,  C07D493/10 ,  C09B11/24 ,  C09B67/48 ,  C07D311/88

CPC分类号： C09B67/0025 ,  B41M5/1455 ,  B41M5/3275 ,  C07D493/10 ,  C09B11/24

摘要： The improved .beta.-type crystal modification of 2-(3-methylanilino)-3-methyl-6-diethylaminofluoran has high solubility in inner-phase solvents. The compound is very useful as a color former for pressure-sensitive recording materials and thermal recording materials. Recording materials that use this compound as color former exhibit good performance in various characteristics such as whiteness of the background, its storage stability, color rendition, sensitivity for color formation and color fastness of image.

摘要翻译： 2-（3-甲基苯胺基）-3-甲基-6-二乙基氨基荧烷的改进的β型晶体改性在内相溶剂中具有高溶解度。 该化合物作为压敏记录材料和热敏记录材料的成色剂是非常有用的。 使用该化合物作为成色剂的记录材料在各种特性如背景的白度，其储存稳定性，显色性，图像的着色灵敏度和色牢度方面表现出良好的性能。

公开(公告)号：US5627287A

公开(公告)日：1997-05-06

申请号：US377237

申请日：1995-01-24

申请人： Hiroyuki Sasaki ,  Shinzo Nawamoto ,  Jun-ichi Taniguchi ,  Toshihiro Masaoka ,  Bunji Sawano ,  Sayuri Wada ,  Yojiro Kumagae

发明人： Hiroyuki Sasaki ,  Shinzo Nawamoto ,  Jun-ichi Taniguchi ,  Toshihiro Masaoka ,  Bunji Sawano ,  Sayuri Wada ,  Yojiro Kumagae

IPC分类号： B41M3/14 ,  B41M5/145 ,  B41M5/327 ,  B41M5/337 ,  B41M5/46 ,  C07D405/06 ,  C09B11/00 ,  C09K9/02 ,  G11B7/244 ,  C07D209/14

CPC分类号： B41M5/327 ,  B41M3/142 ,  B41M5/145 ,  B41M5/3375 ,  B41M5/465 ,  C07D405/06

摘要： A phthalide compound of general formula (I) and a near infrared absorber and a recording material each utilizing the phthalide compound are disclosed. ##STR1## wherein ring A represents a substituent group of the following formula ##STR2## where the other substituents are as defined in the disclosure. The near infrared absorber and the recorded image on the recording material absorb strongly the near infrared region with no appreciable absorption in the visible region of the spectrum. The near infrared absorber is colorless or pale in color and yet highly capable of absorbing near infrared radiation. The recorded image on the recording material can hardly be read with the eye but can be read with the OCR. Moreover, the effect on the developed shade of any concomitant color former in a recording material is minimal.

摘要翻译： 本发明公开了通式（I）的酞化合物和近红外吸收剂以及各自使用苯酞化合物的记录材料。 记录材料上的近红外吸收体和记录图像强烈地吸收近红外区域，在光谱的可见光区域没有明显的吸收。 近红外吸收剂是无色或浅色的，但能够吸收近红外辐射。 记录材料上的记录图像几乎不能用眼睛读取，但可以用OCR读取。 此外，对记录材料中任何伴随的成色剂的显影性的影响最小。