| 摘要 |
PURPOSE:To obtain a favorable thermal recording material free from the occurrence of unevenness of recording density caused by irregularities on a cloth surface by a method wherein a substrate is a woven cloth made of a yarn having a fiber diameter of a specific value or less, and a thermal recording layer is provided on the substrate. CONSTITUTION:A substrate of a thermal recording material is a woven cloth made of a yarn having a fiber diameter of 200mum or less, and a thermal recording layer is provided either or both surfaces of the substrate. The use of a yarn having a fiber diameter more than 200mum forms irregularities on the surface of the woven cloth and results in deterioration of printing quality. If a large amount of an undercoat layer is applied for preventing said deterioration, the intrinsic flexibility of a woven cloth is lost. A smaller fiber diameter realizes a higher image quality, but the use of a yarn of a very small fiber diameter results in a high cost. Thus, a yarn of the order of 5-100mum is most preferably used. For holding the uniformity of a recorded image or preventing a creeping of a coated layer and a pin hole, it is preferable that two or more primary yarns having a fiber diameter of 100mum or less are twisted to make a secondary yarn, and a woven cloth using the secondary yarns arranged in parallel as warps and/or woods is used as the substrate. |
