摘要:
A reversible thermosensitive recording material is composed of a support and a reversible thermosensitive recording layer formed thereon. The reversible thermosensitive recording layer is composed of a matrix resin, such as polyvinyl chloride or vinyl chloride copolymer, and an organic low-molecular-weight material dispersed in the form of finely-divided particles in the matrix resin, with the weight percentage Y of the vinyl chloride repeat in the matrix resin and the average polymerization degree X of the matrix resin satisfying the relationship:-0.68 log X+3.794.ltoreq.log Y.ltoreq.-0.215 log X+2.66.
摘要翻译:可逆热敏记录材料由支撑体和形成在其上的可逆热敏记录层组成。 可逆热敏记录层由基质树脂如聚氯乙烯或氯乙烯共聚物和分散在基体树脂中的细碎颗粒形式的有机低分子量材料组成,重量百分比Y 基体树脂中的氯乙烯重复和基体树脂的平均聚合度X满足关系:-0.68log X + 3.794 <= log Y <= -0.215log X + 2.66。
摘要:
An image recording method of recording information in and erasing recorded information from a display medium which contains a reversible thermosensitive recording material capable of writing information therein and erasing recorded information therefrom by the application of heat thereto, by use of a heat application member with a flat portion by bringing the flat portion into contact with the display medium provided on a supporting base, at least one of the display medium or the flat portion of the heat application member having an elastically deformable portion through which one of the display medium or the flat portion of the heat application member performs elastic deformation and the display medium is capable of coming into close contact with the heat application member.
摘要:
An image recording method for recording information in and erasing recorded information from a display medium which contains a reversible thermosensitive recording material capable of writing information therein and erasing recorded information therefrom by the application of heat thereto, by using a heat application member with round corners, and contacting the surface of the heat application member with the display medium.
摘要:
A method of compensating for the distortion in a recording layer of a reversible thermosensitive recording medium, for which transparency of the recording layer is changeable, depending upon the temperature thereof, and the recording layer is capable of forming images and erasing the images reversibly. The distortion in the recording layer is caused by the repeated image formation by image formation means and/or image erasure by image erasing means. In this method, stress is applied to the recording layer before and/or after image formation by the movement of the recording medium relative to the image formation means, in a direction different from the direction of the application of stress in the course of a previous image formation or image erasure. Instead of the stress, thermal energy can be employed for compensating for the distortion in the recording layer.
摘要:
A reversible thermosensitive recording medium having a supporting substrate and a reversible thermosensitive recording layer formed on the supporting substrate, having the ratio, of two values of light intensity scattered by the recording layer at large angles and small angles, of more than or equal to two, the ratio of the two numbers of particles of low-molecular-weight organic material with the large size to small size, of more than or equal to 2%, and the ratio of the two numbers of the particles with the small size to the total particles, of more than or equal to 10%, is provided which has improved display quality and excellent durability for repeated recording and erasing cycles over an extended period of time.
摘要:
A reversible thermosensitive recording material which includes a support, and a thermosensitive layer provided on the support and including, as main ingredients, a resin matrix and an organic low molecular weight substance dispersed in the resin matrix, wherein the transparency of the thermosensitive layer reversibly changes depending on the temperature thereof is characterized in that the rate of change in heating temperature for the initiation of transparentization is 13% or less, the rate of change in transparency is at least 50% or the rate of change in film thickness is at least 2%. By heating the reversible thermosensitive recording material, the formation and erasure of images may be suitably effected.
摘要:
A reversible thermosensitive recording material composed of a support, an undercoat layer formed on the support, and a reversible thermosensitive recording layer formed on the undercoat layer, capable of reversibly assuming a transparent state and a white opaque state depending on the temperature thereof, the undercoat layer having at least one colored portion and at least one light reflecting portion.
摘要:
A reversible thermosensitive recording material has a support and a reversible thermosensitive recording layer formed thereon, capable of reversibly assuming at least two different visible states depending upon the temperature thereof, containing an organic low-molecular weight material and a resin composition in which the organic low-molecular weight material is dispersed, the resin composition including a matrix resin, and a dispersion resin which has a glass transition temperature higher than that of the matrix resin, and having resin aggregates which are separately dispersed in the matrix resin in such a manner that the resin aggregates are associated with the matrix resin.
摘要:
A reversible thermosensitive recording material which has a substrate and a recording layer formed on the substrate and in which the recording layer assumes a first color state at a first coloring temperature higher than room temperature when the recording layer is heated by applying heat energy in a first color recordable energy range and in which the recording layer then assumes a second color state when heated at a second coloring temperature higher than the first coloring temperature and then cooled, wherein provided that an initial first color recordable energy range is E.sub.1 and a changed first color recordable energy range of the recording material which has been preserved at 35.degree. C. for 48 hours is E.sub.D, a changing rate E.sub.c of a first color recordable energy range, i.e., 100(E.sub.1 -E.sub.D)/E.sub.1, is less than about 35%.
摘要:
A recording method of forming images on a reversible thermosensitive recording material, by bringing a heating element of a thermal head into pressure contact with the reversible thermosensitive recording material, which is capable of assuming a first colored state when heated to a first temperature which is higher than room temperature, and then cooled, and which is capable of assuming a second colored state when heated to a second temperature which is higher than the first temperature, and then cooled, and relatively moving at least one of the heating element or the reversible thermosensitive recording material, wherein the stress exerted on the reversible thermosensitive recording material per unit area thereof, .sigma.(g/cm.sup.2), which is generated by the pressure contact of the heating element with the reversible thermosensitive recording material and the relative movements of the heating material and the reversible thermosensitive recording material, is represented by formula (I):.sigma..ltoreq.A(Ts/T)+B (I),wherein A is 8.0.times.10.sup.4, B is -5.78.times.10.sup.4, T (K.degree.) represents the temperature of the surface of the heating element and Ts (K.degree.) represents the softening point of the reversible thermosensitive recording material.
摘要翻译:一种在可逆热敏记录材料上形成图像的记录方法,通过使热敏头的加热元件与可逆热敏记录材料压力接触,该可逆热敏记录材料当被加热到较高的第一温度时能够呈现第一着色状态 然后冷却,并且当加热到高于第一温度的第二温度时能够呈现第二着色状态,然后冷却,并且相对移动加热元件或可逆热敏材料中的至少一个 记录材料,其中施加在每单位面积的可逆热敏记录材料上的应力,由加热元件与可逆热敏记录材料的压力接触产生的σ(g / cm 2)和加热材料的相对运动 和可逆热敏记录材料由式(I)表示:si gma A =(Ts / T)+ B(I)其中A为8.0×10 4,B为-5.78×10 4,T(K°)表示加热元件表面的温度,Ts(K DEG) 可逆热敏记录材料的软化点。