摘要:
A heat-sensitive recording material having a support and a heat-sensitive recording layer provided thereon. The heat-sensitive recording layer contains a diazonium salt compound and a coupler which reacts with the diazonium salt compound upon heating to form a color. The heat-sensitive recording layer contains a compound of the following formula (I): ##STR1## wherein R represents a member selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, and an aryl group; X represents a member selected from the group consisting of --COOR.sup.1, --OCOR.sup.--1, --CONR.sup.1 R.sup.2, and --NR.sup.2 COR.sup.1 ; R.sup.1 represents an alkyl group or an aryl group, R.sup.2 represents a member selected from the group consisting of a hydrogen atom, an alkyl group, and an aryl group; n represents an integer from 1 to 5.
摘要:
A heat-sensitive recording material includes a support having disposed thereon a heat-sensitive layer including microcapsules, which contain an achromic or hypochromic electron-donating dye precursor, and a developer, wherein the microcapsules contain at least one metal compound.
摘要:
An object of the present invention is to provide a heat sensitive recording material which can develop color at high density by the inclusion of a novel guanidine compound which is strongly basic and superior in diffusion resistance. The present invention for attaining the above-described object is a heat sensitive recording material comprising a substrate supporting thereon a heat sensitive recording layer containing a diazonium salt compound, a coupler which reacts with the diazonium salt compound when heated to develop color, and a base, wherein the heat sensitive recording layer includes as the base at least one of the guanidine compounds represented by the general formula (1): wherein, in the general formula (1), R1 and R2 represent an alkyl group or aryl group and may be the same or different, R3 and R4 represent a hydrogen atom, alkyl group or halogen atom and may be the same or different, and X represents a divalent connecting group.
摘要:
An object of the present invention is to provide a heat sensitive recording material which can develop color at high density by the inclusion of a novel guanidine compound which is strongly basic and superior in diffusion resistance. The present invention for attaining the above-described object is a heat sensitive recording material comprising a substrate supporting thereon a heat sensitive recording layer containing a diazonium salt compound, a coupler which reacts with the diazonium salt compound when heated to develop color, and abase, wherein the heat sensitive recording layer includes as the base at least one of the guanidine compounds represented by the general formula (1): wherein, in the general formula (1), R1 and R2 represent an alkyl group or aryl group and may be the same or different, R3 and R4 represent a hydrogen atom, alkyl group or halogen atom and may be the same or different, and X represents a divalent connecting group.
摘要:
A hydrazone dye is provided which forms cyan color having an excellent hue. The hydrazone dye is expressed by the following general formula (I): wherein Ar represents an aryl group or a heterocyclic group; R1 through R4 each represent a hydrogen atom, a halogen, —CN, —NH2, —NO2, —OH, —CO2H, —SO3H, a quaternary ammonium group, —CO2M1/n, —SO3M1/n, an alkyl group, alkenyl group, alkynyl group, aryl group, acyl group, carbamoyl group, sulfamoyl group, alkoxycarbonyl group, aryloxycarbonyl group, acyloxy group, alkoxy group, aryloxy group, alkylthio group, arylthio group, alkylsulfonyl group, arylsulfonyl group, alkylphosphoryl group, arylphosphoryl group, or a substituted amino group; M represents a metal atom; and n represents an integer from 1 to 4.
摘要翻译:提供了形成具有优异色调的青色的腙染料。 腙染料由以下通式(I)表示:其中Ar表示芳基或杂环基; R 1至R 4各自表示氢原子,卤素,-CN,-NH 2,-NO 2,-OH,-CO 2 H,-SO 3 H,季铵基,-CO 2 M 1 / n,-SO 3 M 1 / n,烷基, 酰基,氨基甲酰基,氨磺酰基,烷氧基羰基,芳氧基羰基,酰氧基,烷氧基,芳氧基,烷硫基,芳硫基,烷基磺酰基,芳基磺酰基,烷基磷酰基,芳基磷酰基, 或取代的氨基; M表示金属原子; n表示1〜4的整数。
摘要:
In order to provide a steering wheel in which the strength of a wooden member is enhanced and the appearance of the wooden member is improved, a steering wheel comprising: a substantially annular metal core; and a wooden member comprising a plurality of wooden pieces, the wooden pieces being formed from a pure wooden material and bonded together to surround a part or the whole of the metal core when mounted on the metal core; wherein the wooden pieces are formed from a single pure wooden material, and the wooden pieces that are bonded together are formed from adjacent sites of the single pure wooden material, is provided.
摘要:
Disclosed herein is a tension reducer suitable for use in a webbing retractor, which comprises a weak resilient spiral spring whose one end is connected to a webbing take-up spindle of the webbing retractor and which exerts an urging force in a webbing winding direction, a connecting member connected to the other end of the weak resilient spiral spring and disposed rotatably about the take-up spindle, a strong resilient spiral spring whose one end is connected to the connecting member and which exerts an urging force in the webbing winding direction greater than the urging force of the weak resilient spiral spring, a device for stopping the rotation of the connecting member in the webbing winding direction so as to avoid the exertion of the urging force of the strong resilient spiral spring on a webbing at the time that the webbing is pulled out of the take-up spindle to be fastened to an occupant, and a device disposed about the take-up spindle for controlling the degree of tightening of the windings of the weak resilient spiral spring so as to prevent the torque thereof from exceeding a predetermined range.
摘要:
The present invention provides a thermal recording material comprising a support and at least a thermal recording layer disposed on the support, wherein at least one of the thermal recording layer includes, together with an electron donating colorless dye, at least an electron accepting compound represented by the following general formula (1). R1 and R2 each independently represents a hydrogen atom, an alkyl group or an aryl group; and Ar is represented by the following general formula (2). In the general formula (2), R11 to R14 each independently represents a hydrogen atom, an alkyl group with 1 to 4 carbon atoms or an aryl group.
摘要翻译:本发明提供了一种热敏记录材料,其包括载体和至少一个设置在载体上的热敏记录层,其中热敏记录层中的至少一个与供电的无色染料一起包含至少一种由 以下通式(1)。 R 1和R 2各自独立地表示氢原子,烷基或芳基; Ar由以下通式(2)表示。 在通式(2)中,R 11至R 14各自独立地表示氢原子,具有1至4个碳原子的烷基或芳基。
摘要:
A steering wheel having partially applied wooden outer covers, which can be produced without having the wooden outer covers scratched, and the like, and can be produced with high working efficiency, and a method for manufacturing the steering wheel are provided. Raw materials, from which wood members are formed, are attached at a rim portion of a core metal, and cores are formed in this state. Thereafter, the wood members are shaped from the raw materials. Further, resin pieces are attached in spaces between the wood members and the cores to limit displacement of the wood members. Then, the cores and the resin pieces are covered with covering portions. As described above, spaces are formed, and the cores are formed in a state in which the raw materials of the wood members are attached. This allows shaping of the wood members after formation of the cores. Since the wood members can be shaped after the cores are formed, even if the wood members are scratched while the cores are formed, the scratches can be removed when the wood members are shaped.
摘要:
.alpha.-resorcylic acid ester derivatives useful as electron-accepting compounds for recording materials, and highly durable recording materials containing these derivatives. The .alpha.-resorcylic acid derivative is represented by the following general formula (I), ##STR1## wherein R.sub.1 represents a hydrogen atom, a halogen atom or an alkyl group, and X represents a divalent group.