Abstract:
Stylus-substrate system components include an optical transitioning or color changing substrate and a stylus device/mechanism for inducing the optical transition or color change in the substrate. The optical transitioning or color change substrate possess all of the chemical components necessary to generate a single color or multiple color image, written matter, graphics, markings or recorded information. The stylus device/mechanism possesses the physical, electrical, and/or mechanical means for inducing the single or multi-colored change in the substrate.
Abstract:
In one aspect, the invention relates to a label (1) preferably intended for packages for goods, which label comprises, on one hand, a colouring substance of the type that has the capacity of producing a print by the effect of heat, the colour of which print contrasts with the base colour of the label, and on the other hand an agent having the purpose of, at least partially, destroying the contrast between said colours, if the label is exposed to a tem- perature above a predetermined maximum value, the label having a surface field for a print in the form of a bar-code (3). According to the invention, the label is manufactured from a porous, capil- lary-suctioning material, in addition to which said agent is included in a loading of a substance (7) of the type that is solid at temperatures up to said maximum value, but becomes liquid above the same, the substance loading being located beside the surface field of the bar-code (3). In other aspects, the invention also relates to a package for goods provided with a label, as well as to a method and equipment for the application of labels to packages for goods.
Abstract:
The present invention relates to a color-changing transfer decal paper having a general ink printed layer and a color-changing ink printed layer. The color-changing transfer decal paper comprises a double-faced design including two color-changing ink printed layers (120, 140) and a partitioning printed layer (130) formed of a general ink and interposed therebetween. According to the color-changing transfer decal paper of the present invention, it is possible to obtain very unique effects in which when the color-changing transfer decal paper is attached to a surface of a transparent body such as a glass cup, respective designs can be seen on both sides of the surface of the transparent body at a temperature below or above a predetermined temperature.
Abstract:
A reversible thermal recording medium comprising a support and, superimposed thereon, a reversible thermal recording layer comprising a reversible thermal composition, the reversible thermal composition comprising an electron-donating color-forming compound and an electron-accepting compound and capable of forming relatively colored condition depending on a difference in heating temperature and/or cooling rate after heating, characterized in that the electron-accepting compound is a phenol compound of the general formula: (1) (wherein n is an integer of 1 to 3; X represents a bivalent group containing a N atom or an O atom; R1 represents a substituted or unsubstituted aliphatic hydrocarbon group having 2 or more carbon atoms; and R2 represents a C1-C14 aliphatic hydrocarbon group), and that when the reversible thermal recording medium is printed in an environment of 35°C ± 2°C and 70 to 90% relative humidity, the coloring density is 0.80 or greater while the decoloring density is 0.15 or less.
Abstract:
A conventional rewritable recording device utilizing a heat-sensitive recording medium (1) which is turned into a colored state when heated at a first predetermined temperature and turned into a colorless state when heated at a second predetermined temperature has a problem that the recording medium will not be turned into a completely colorless state depending on the history of recording and erasing, when, for example, no satisfactory heating to the second predetermined temperature is performed or when repeated recording and erasing have deprived the recording medium of its reversibility. In order to solve this problem, the invention device is provided with a data erasing means (7) wherein the energy applied to a heating means is varied so that the recording medium can be heated to the predetermined temperature. Furthermore, a recording medium, which has been used many times until reuse thereof is no longer possible, is discriminated and discarded, so that the recording medium incapable of recording is prevented from being used.
Abstract:
To provide a thermoreversible recording medium including a support, and a thermoreversible recording layer, which is disposed on the support, and contains a leuco dye, and a reversible color developer, wherein an average particle diameter of granules in the thermoreversible recording layer is 0.35 micrometers or smaller.
Abstract:
A conveyor line system, including: an image processing device configured to irradiate a recording part with laser light to record or erase, or record and erase an image, wherein the conveyor line system is configured to manage a conveying container containing the recording part, and wherein the following formula is satisfied at a wavelength of the laser light emitted from the image processing device when recording the image: A + 50 > B where A is an absorbance of the recording part, and B is an absorbance of the conveying container.
Abstract:
Aspects of the invention include color change compositions having a color former and color developer composition that transitions from a first color state to a second color state upon application of an applied stimulus and an amount of a copolymer sufficient to eliminate background color of the color former and color developer composition during transition from the first color state to the second color sate. Methods for preparing and devices employing the color change compositions of the invention are also described.
Abstract:
A laser erasing apparatus includes a conveyance unit to move a reversible thermal recording medium having display information thereon at a predetermined moving speed, the reversible thermal recording medium reversibly changing a color tone thereof depending on a temperature; and a laser erasing unit configured to erase the display information by irradiating the reversible thermal recording medium with a laser beam while the reversible thermal recording medium is moving and by deflecting the laser beam at a predetermined scanning speed lower than the predetermined moving speed in a same direction as a moving direction of the reversible thermal recording medium.