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。
摘要:
An apparatus for recording data in a thermosensitive recording medium at a first temperature after erasing data written in the medium at a second temperature. The apparatus desirably erases data stored in a recording medium with no regard to the time elapsed after writing, condition of storage, writing conditions, the number of repetitive writing and erasing operations, etc.
摘要:
A recording apparatus for recording data in a thermosensitive recording medium. The recording medium has a reversible thermosensitive recording material capable of selectively assuming one of two visible states, e.g., a cloudy state and a transparent state or a colored state and a decolored state when heated. The thermosensitive material is applied to a sheet of resin. The apparatus surely erases data written in the medium with no regard to the time elapsed and the number of times that data has been repetitively written. The cloud density or the color density is prevented from changing with no regard to the storage temperature, the time elapsed, or the number of times of writing, thereby preventing image quality from being degraded. In addition, the medium has a long service life.
摘要:
Disclosed is an image forming apparatus including a first member having a surface endlessly moving in a specific direction a second member having a surface endlessly moving in the specific direction at a region facing the surface of the first member, and a supporting member holding the second member and to move together with the second member. The supporting member includes a release mechanism to release an engagement of the supporting member from the second member. A pressing member is included to press the second member via the supporting member to cause the second member to contact the first member under pressure to form a nip between the first and second members. The release mechanism releases the engagement of the supporting member from the second member when the second member is pushed away by a leading edge of a recording medium having a thickness greater than a reference thickness value.
摘要:
This patent specification describes an image forming apparatus which includes a first member having a surface endlessly moving in a specific direction a second member having a surface endlessly moving in the specific direction at a region facing the surface of the first member, and a supporting member to hold the second member and to move together with the second member. The supporting member includes a release mechanism to release an engagement of the supporting member from the second member. Further, a pressing member is included to press the second member via the supporting member to cause the second member to contact the first member under pressure to form a nip between the first and second members. The release mechanism releases the engagement of the supporting member from the second member when the second member is pushed away by a leading edge of a recording medium having a thickness greater than a reference thickness value.
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 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:
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:
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:
There is disclosed a method of successively forming and/or erasing images selectively in different portions of a recording layer of a recording medium which comprises a reversible thermosensitive recording material capable of recording images and erasing the same by reversibly changing the transparency or the color tone of the portions of the recording layer with the application of heat thereto, depending upon the temperature thereof, in such a manner that the same portion of the recording layer is not continuously used for image formation and/or erasure in excess of a predetermined number of times, thereby repeating the use of the recording medium for an extended period of time.