DE2156762A1 - FLOWABLE HECTOGRAPH COMPOUNDS - Google Patents

Description

Badische Anilin- & Soda-Fabrik AG

Our reference: Oo Z. 27 801 E / L

67OO Ludwigshafen, November 15, 1971

Flowable hectograph masses

The invention relates to coloring compositions, the alkoxylated fatty acid alkanolamides included, for hectographic purposes «

In the production of hectograph masses, the dyes are dispersed in a wax mass with the help of grinders. The hectograph masses are in a molten state in storage containers transferred and for further processing on a coating system applied to the paper to be coated, for example, by printing or squeegee processes. With such hectography papers copies can then be produced in a simple manner using the transfer printing process.

When storing and processing the hectograph masses in in the liquid state, viscosity increases often occur to a considerable extent. The masses are used for coating so viscous that the working speed has to be reduced significantly. When stored for a long time, the mass thickens irreversibly a and is therefore unusable for further use for coating.

It has now been found that hectograph masses remain stable and flowable when they are alkoxylated fatty acid alkanolamides in an amount of 1 to 20 percent by weight - based on the total weight of the hectograph mass.

The alkoxylated fatty acid alkanolamides, which are used as additives find use for the hectograph masses according to the invention, are fatty acid amides containing oxyalkyl groups, which are preferred obtained by oxyalkylation of fatty acid alkanolamides. Among these fatty acid alkanolamides are the ethanolamides and among these, the monoethanol amides are particularly preferred. as

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Fatty acids are, in particular the higher fatty acids or mixtures thereof such as palmitic acid, stearic acid, oleic acid, tallow fatty acid, coco fatty acid, and the like into consideration ₀ The fatty acid alkanolamides are reacted with alkylene oxides, preferably ethylene oxide. The molar ratio in this reaction is expediently 1; 5 to 1:25, preferably 1 s to 1; 15, fatty acid alkanolamide to alkylene oxides

The alkoxylated fatty acid alkanolamides are used in an amount from 1 to 20, preferably 2 to 10, percent by weight, based on the hectograph mass according to the invention, before, during or It is also incorporated into the hectograph mass after rubbing or dispersing the dye with the wax component possible, the alkoxylated fatty acid alkanolamides of the dye component add the dye during their preparation or during the grinding, or they precede the wax component to be mixed with the rub with the dye. When added to the dye component during their manufacture, it has been found to be Particularly favorable.erwiesen to stir the alkoxylated alkanolamide into the water-containing melt of the dye and the mixture then to dry. ■

All conventional hectograph dyes, in particular triarylmethane dyes, such as crystal violet (color index no ₀ 42 555), methyl violet (Color Index No. 43 535) or Victoria Blue B (Color Index No. 44 045), whereby mixtures of dyes can also be used <>

Suitable wax components are those for hectograph masses common natural and synthetic waxes and oils, such as carnauba wax, lanolin, petroleum jelly, paraffin, Ozokerite, beeswax, raw and modified (ester wax.) Montan waxes, mineral oils, paraffin oil, machine oil, spindle oil, Claw oil, bone oil, peanut oil, castor oil, sunflower oil, rapeseed oil, Poppyseed oil, olein and others alone or in a mixture.

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The hectograph masses according to the invention remain even after prolonged storage and with those customary for their further processing higher temperatures stable and flowable and are therefore for the coating of hectography papers in excellent Way suitable. Other non-ionic emulsifiers are already used to reduce the grain hardness of di- and triarylmethane dyes to reduce and thereby make them more suitable for hectographic purposes., However, such emulsifiers show in the case of hectograph masses, no or no noticeable viscosity-stabilizing effects Effect. It was therefore surprising that the group of alkoxylated fatty acid alkanolamides when added to Hectograph masses, which essentially consist of a dye and a wax component, even when exposed to stress Storage at elevated temperature, the fluidity of this Preserve masses and are therefore to be addressed as viscosity stabilizers »

The following examples explain the subject matter of the invention in detail. The parts given are parts by weight of ₀

example 1

354 parts of water-containing crystal violet (dry content 2QO parts) are melted on a water bath to form a solution. 10 parts of a reaction product of 1 mole of oleic acid monoethanolamide and 10 moles of ethylene oxide are stirred into the melt. The mass is thickened with stirring and evaporation of water until it solidifies and dried in a vacuum drying cabinet at 70 ^° C. to a water content of about 2 % 4, ρ is suitable

Example 2

20 parts of a reaction product of 1 mol of tallow fatty acid monoethanolamide (monoethanol mixture of an acid mixture of 47 % oleic acid, 29 % palmitic acid, 18 % stearic acid, 3 % myristic acid and 3 % linoleic acid) and 12 mol of ethylene oxide are mixed homogeneously with T len Was? R and in 354 parts of a dye

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Melt according to Example 1 stirred in and treated further as in Example 1. A crystal violet dye mass is obtained for processing on a hectograph mass e.g. according to example 5.

Example 3

300 parts of crystal violet (dry content 170 parts) and 60 parts of methyl violet (dry content 30 parts) are melted on a water bath and mixed with 25 parts of a reaction product of 1 mole of oleic acid ethanolamide and 10 moles of ethylene oxide. After further treatment as in Example 1, a paint mass with a water content of about 3 % is obtained

Example 4

144 parts of a wax mixture of 36 parts of carnauba wax, 36 parts of vaseline, 51 parts of lanolin and 21 parts of mineral oil are rubbed with 156 parts of crystal violet color powder from Example 1 with 600 parts of steatite balls in a stirred ball mill at 95 ° C. at a speed of 800 rpm. After 90 minutes, the resulting hectograph mass is separated from the spheres and its viscosity is determined in an Epprecht viscometer (measuring system B and speed level I) at 95 ° C. immediately and over a storage time of 24 hours. The measurement gives an initial viscosity of 58O cP, which does not change in the course of 24 hours increases »

Example 5

The crystal violet dye mass obtained according to Example 2 is ground to a hectograph mass in a stirred ball mill as described in Example 4. The viscosity measurement gives an initial viscosity 520-550 cps at 95 ° C, which remains on storage "for 24 hours at 95 ⁰ C at the same level"

Example 6

48 parts of a wax mixture of 12 parts of carnauba wax, * 12 Parts of petroleum jelly, 17 parts of lanolin and 7 parts of mineral oil will be

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with 52 parts of the dye composition obtained in Example 1 a rotary roller mill four times at room temperature under one Pressure of 60 atm and rubbed twice at 95 ° C under a pressure of 10 to 20 atm. “The viscosity of the After four days of storage at 95 ° C., the hectograph mass is equal to the initial viscosity and is 370 cP. In contrast, the Comparative color composition produced without the oxyethylation product showed an increase in viscosity from 480 to over in the same period I500 cP.

Example 7

13 parts carnauba wax, 17 parts petroleum jelly, 5 parts bone oil, 2 parts of oleic acid and 55 parts of crystal violet are together with 2.75 or »5j or 10 parts of a reaction product of 1 mol Tallow fatty acid monoethanolamide and 12 moles of ethylene oxide rubbed on a three-roll mill as in Example 5. The viscosity measurement the subtracted hectograph mass results in 510 or »440, or 370 cP as the initial viscosity at 95 ° C, which changes in the course storage for 24 hours at 95 ° C does not change “The corresponding .Mass without addition of the Oxäthylierungsproduktes shows a Initial viscosity of 1100 cP and values over 2000 cPc after storage for 24 hours at 95 ° C

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Claims (4)

- 6 - ■ O. Z. 27 801 patent claims 1. Flowable hectograph masses, characterized by a content of alkoxylated fatty acid alkanolamides in an amount of 1 to 20 percent by weight, based on the total weight of the hectograph mass. 2. Process for the production of flowable hectograph masses
according to claim 1, characterized in that the alkoxylated fatty acid alkanolamides used are reaction products of ethylene oxide with monoethanolamides of higher fatty acids « 3. Process for the production of flowable hectograph masses
be incorporated according to claim 1, characterized in that the oxyalkylated fatty acid alkanolamides _s that in the individual components or in the mixture of the constituent components Hektographenmassen ". 4. Process for the production of flowable hectograph masses
according to claim 1, characterized in that the alkoxylated fatty acid alkanolamides are added to the dye component during its preparation » Badische Anilin- & Soda-Fabrik AG 3 0 9822/0968