MATERIAL DE REGISTRO SENSIVEL AO CALOR E PROCESSO PARA A SUA PRODUCAO

摘要

The heat-sensitive record materials have, between the base sheet and the recording layer, a middle layer which mainly comprises a binder and at least one pigment having an oil absorption of at least 80cc/10Og measured by JIS K 5101. The middle layer comprises an acrylic thickener in an amount of 0.05 to 5 parts by weight per 100 parts by weight of the pigment on dry basis. The middle layer is formed by blade-coating on a base sheet a coating composition comprising at least one pigment having an oil absorption of at least 80cc/10Og measured by JIS K 5101 and a binder, in which an acrylic thickener is comprised in such amount as described above.