摘要:
Novel 2-hydroxynaphthalene-1-aldehydes have been found which have the general formula (I) ##STR1## wherein R is a carboxylic acid group, a carboxylic acid ester group, preferably of an alkanol or of an optionally substituted phenol, an optionally substituted carboxylic acid amide group, or an optionally substituted carboxylic acid hydrazide group, which are very valuable intermediate products for the preparation of coloring agents, optical brighteners, textile auxiliary agents and pharmaceutical products.
摘要:
A hand-held labelling or marking device can typically have a housing With a printing mechanism that provides a printed ink image, such as prices, etc. Such a housing can be formed by two housing parts. At least at one point, in particular on the upper portion of the housing, the housing parts can be securely held together by means of a clamp-type holder, thereby minimizing the size of the housing. The clamp-type holder can preferably include a window for displaying a row of symbols that will be printed, which symbols can be disposed on either a belt, or a wheel of a wheel printing mechanism. Each belt or wheel can be set individually by means of a control shaft. Adjacent the window, there can preferably be special symbols corresponding to the print belts or wheels, and on a control shaft for setting of the individual belts or wheels there can be corresponding symbols to make the setting process faster and easier process. A control wheel and a control lever of an advancing mechanism for serially advancing the settings of the belts or wheels can also advantageously be accessible by means of the window.
摘要:
The invention relates to a process for purification of 2-hydroxynaphthalene-6-carboxylic acid by recrystallization. In this process, the crude acid is recrystallized from water-miscible linear or cyclic aliphatic ethers, aliphatic polyethers or aliphatic hydroxy ethers or from at least 10% strength by weight aqueous solutions of these ethers. Recrystallization from a 35-90% strength by weight aqueous solutions of 1,4-dioxane is particularly preferred.
摘要:
A printing mechanism is described comprising a plurality of type carriers (12, 34) which on their outer peripheral face carry in one region printing types and in another region indicator types (44). The printing types can be brought by turning the type carriers (12, 34) into a printing position. A setting means (32, 20, 24) including an actuating knob (32) can be brought into a drive connection with each of the type carriers (12, 34) for rotation thereof. Stop means (100, 102, 104, 106, 110) limit the turning travel of the type carriers (12, 34). With a detent moment governed by their spring hardness resilient detent elements (96) hold the actuating knob (32) against a rotation relatively to the type carrier (12, 34) in drive connection with the setting means (32, 20, 24), the detent moment being greater than the torque necessary to rotate the type carriers (12, 34). A setting member (112) for influencing the spring hardness of the detent elements (96) can be brought into engagement with said detent elements (96).
摘要:
New metal-complex disazomethine compounds of the formulae ##STR1## WHEREIN R is a single bond, a straight-chained or branched alkylene radical which may be interrupted by one or more hetero atoms, such as 1, 2, 3 or 4 moieties selected from a group consisting of isocyclic and heterocyclic ring and other bivalent group, or is a cycloalkylene radical, an arylene or a heterocyclic radical, Z is a group capable of forming metal complexes, X is a carboxylic acid group, carboxylic acid ester group, an optionally substituted carboxylic acid amide or carboxylic acid hydrazide group and M is a bivalent metal atom, had been found which are very well suitable as colorants, especially as pigments, for example, for coloring plastic masses, paints, lacquers, for the use in spin-dyeing of viscose and cellulose acetate, for coloring printing pastes in graphic industry and paper masses, and have a high tinctorial strength, a good transparency, pure shades, excellent fastness to migration, to overvarnishing to light, to weather, to solvents and to heat, corresponding to the material colored with them.
摘要:
Novel 2-hydroxynaphthalene-1-aldehydes have been found which have the general formula (I) ##STR1## wherein R is a carboxylic acid group, a carboxylic acid ester group, preferably of an alkanol or of an optionally substituted phenol, an optionally substituted carboxylic acid amide group, or an optionally substituted carboxylic acid hydrazide group, which are very valuable intermediate products for the preparation of coloring agents, optical brighteners, textile auxiliary agents and pharmaceutical products.
摘要:
New valuable metal complex disazomethine compounds of the formula ##STR1## had been found wherein R is hydrogen, an alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical, an amino group which may be substituted by alkyl or aryl radicals, or a guanidino group, X stands for a -CO- or -SO.sub.2 -group, Y stands for hydrogen, a halogen atom, an alkyl, alkoxy or nitro group, R.sub.1 stands for hydrogen or an alkyl radical, Z stands for hydrogen, a halogen atom, an alkoxy or nitro group and M is a bivalent metal atom.The new compounds are very well suitable as dyes, especially good pigments, and can be used, for example for the dyeing of masses of synthetic materials, for pigmenting paints and lacquers, for spin-dyeing viscose and cellulose acetate and for pigmenting polyethylene or similar polymers, caoutchouc or synthetic leather.Their dyeings have excellent fastnesses as, for example, to migration, light, weather and solvents.Furthermore, the compounds themselves have an excellent heat stability, a high color intensity and high degree of purity of the shades.
摘要:
A stacking device for stacking card-shaped products in vertically upright positions. The stacking device has a brake stop that is flexible in the moving direction of the card-shaped products and mounted on a rocker-type drivable component. The rocker presses against the stack end in the stacking direction to advance the stack to receive additional products. The stacking device further includes a stack receiver defining the front end of the stack and including a holding bracket with a bearing surface. The stack receiver preferably is adjustable to accommodate varying widths of products to be stacked.
摘要:
A printing mechanism is described having a plurality of type carriers (12, 34) which at their outer peripheral face carry in one region printing types and in another region indicator types (44). The printing types can be brought by turning the type carriers (12, 34) into a printing position. The turning travel of the type carriers (12, 34) can be limited with the aid of stop means (100, 102, 104, 106, 110). By means of a setting means (32, 20, 24) which can be brought by axial displacement into a drive connection with each of the type carriers (12, 34) each type carrier (12, 34) can be turned. A torque limiting means (96) permits transfer of a limited torque between a first component (32) and a second component (20) of the setting means. A securing means (68, 72) serves for axially fixed connection of the first component (32) to the second component (20). The torque limiting means is formed by resilient detent elements (96) which are disposed on the first component (32) and which are in engagement with complementary detent elements (66) on the second component (20). The securing means (68, 72) is disposed on the second component (20).
摘要:
A printing mechanism comprises a housing (12, 14) in which a plurality of coaxially disposed setting wheels (16) are arranged with which type carriers (20) carrying printing types (22) are in a drive connection and can be brought into predetermined setting positions. A setting shaft (42) extends through center openings disposed in the hub region of the setting wheels (16), the setting shaft (42) being mounted rotatably and axially displaceably in a wall (15) of the housing. The shaft carries at one end at least one driver (36, 38) which by axial displacement of the setting shaft (42) is adapted to be brought into engagement with radial recesses (47) formed in the hub region of the setting wheels (16). At its other end the setting shaft (42) carries an actuating knob (48). At least two detent elements are provided for arresting the setting wheels (16) on rotation thereof and holding the setting wheels (16) in their rest position. The one detent element (70-76, 90) is so formed that it is in operative connection with the particular setting wheel (16a) selected and in addition at the most with the setting wheels (16) arranged between the selected setting wheel (16a) and the other end of the setting shaft (42).