A colour laser markable laminate includes a colour laser markable layer including a leuco dye and an infrared absorbing compound, an optional adhesive layer, a polymeric support, an optional outerlayer, wherein the colour laser markable layer further includes an acid scavenger. The support, the optional adhesive layer, or the optional outer layer includes a UV absorbing compound.

The invention relates to a heat-sensitive recording material, comprising a supporting substrate and a heat-sensitive color-forming layer, which contains at least one color former and at least one phenol-free color developer, characterized in that the at least one color developer is a compound of formula (I), wherein Ar is an aryl residue, a heteroaryl residue, or a benyzl residue and Y is an aryl residue, a heteroaryl residue, a benzyl residue, an aryloxy residue, a heteroaryloxy residue, a benzyloxy residue, an arylamino residue, a heteroarylamino residue, or a benzylamino residue. The invention further relates to a method for producing said heat-sensitive recording material.

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The present invention relates to labels and labelstock materials, and to substances used therein, and components thereof. The present invention further relates to a method of manufacturing the labelstock and labels, uses thereof and products comprising them.

The present invention relates to labels and labelstock materials, and to substances used therein, and components thereof. The present invention further relates to a method of manufacturing the labelstock and labels, uses thereof and products comprising them.

An embodiment of the present invention provides a thermosensitive recording material and a method for manufacturing the same. The thermosensitive recording material includes, on a support, a thermosensitive recording layer containing a polyvinyl alcohol and a color development component; and a protective layer containing a resin component, in this order from the support side. At least one of the thermosensitive recording layer or the protective layer further contains a styrene-isoprene resin.

An object of the invention is to provide a recording material and recording sheet having excellent color-developing performance, storage stability, etc. A recording material having good color-developing performance and storage stability may be obtained by using a specific compound having a benzhydrol skeleton as an additive in a recording material employing color development through a reaction between a color former and a color-developing agent.

The present invention provides a heat-sensitive recording material which has improved thermal responsiveness and improved stability of the print part and the background in comparison to conventional heat-sensitive recording materials that contain a non-phenolic compound as a color developer. The present invention provides a heat-sensitive recording composition which contains a color former, a color developer and a stabilizer, wherein: N-[2-(3-phenylureido)phenyl]benzenesulfonamide or N-(p-toluenesulfonyl)-N-(3-p-toluenesulfonyloxyphenyl) urea is contained as the color developer, and 1,3-diphenyl urea is contained as the stabilizer.

Disclosed is a heat-sensitive recording material containing at least an undercoat layer and a heat-sensitive recording layer in this order on a support, the undercoat layer containing hollow particles, a binder, and an inorganic pigment I, the heat-sensitive recording layer containing a leuco dye and a developer, wherein (A) the heat-sensitive recording layer contains 5-(N-3-methylphenyl-sulfonamide)-N,N-bis-(3-methylphenyl)-isophthalic acid diamide as a stability improver, or (B) the heat-sensitive recording layer contains 5-(N-3-methylphenyl-sulfonamide)-N,N-bis-(3-methylphenyl)-isophthalic acid diamide as the developer and contains a pigment with an oil absorption of 130 ml/100 g or less as an inorganic pigment II.

Disclosed is a heat-sensitive recording material containing at least an undercoat layer and a heat-sensitive recording layer in this order on a support, the undercoat layer containing hollow particles, a binder, and an inorganic pigment I, the heat-sensitive recording layer containing a leuco dye and a developer, wherein (A) the heat-sensitive recording layer contains 5-(N-3-methylphenyl-sulfonamide)-N,N-bis-(3-methylphenyl)-isophthalic acid diamide as a stability improver, or (B) the heat-sensitive recording layer contains 5-(N-3-methylphenyl-sulfonamide)-N,N-bis-(3-methylphenyl)-isophthalic acid diamide as the developer and contains a pigment with an oil absorption of 130 ml/100 g or less as an inorganic pigment II.

A thermochromic pigment composition including: (A) at least one electron-donor organic dye compound, (B) at least one electron-acceptor compound, and (C) at least one compound responding to the following formula (I), in which: R.sub.1 is H or a phenyl group, R.sub.2 is H or a phenyl group, and -n=1-8. The thermochromic pigment composition includes thermochromic pigment microcapsules ink compositions including such thermochromic pigment microcapsules, and writing instruments including such ink compositions.