DE2252628B2 - Topping composition for the manufacture of hectographic color sheets - Google Patents

Description

N — A — CH — Β — Ν

R ² QR ⁴

wherein A and B each independently represent an optionally substituted 1,4-arylene radical; each of the symbols R ¹ , R ² , R ³ and R ⁴ independently represents hydrogen or an optionally substituted alkyl, aralkyl, cycloalkyl or aryl radical, or forms part of a divalent organic chain which, together with the adjacent nitrogen atom, forms a heterocyclic Ring forms; Q is —O— or —NR- (where R is hydrogen or a hydroxyl or alkoxy radical or an optionally substituted amino, alkyl, aralkyl or cycloalkyl radical) and X is hydrogen or an optionally substituted hydrocarbon radical which is one or more May contain heteroatoms, or R and X together with the adjacent nitrogen atom form an optionally substituted heterocyclic ring, characterized in that it contains an aliphatic amine or a 1min.

2. Covering composition according to claim 1, characterized in that each of the symbols R ¹ , R ² , R ³ and R ^{4 represents} methyl.

3. Covering composition according to claim 1, characterized in that the color former formula

R ¹

N-A-CH-B-N

R ⁴

- (Y ¹ )

wherein A, B, R ¹ , R ² , R ³ , R ⁴ , Q and X have the meanings given in claim 1, Y ^{1 represents} a group which allows the compound to exist in anionic form, and η stands for a value 1, 2 or 3.

4. Covering composition according to claim 3, characterized in that each Y ¹ in the color former stands for a sulfo group.

5. A covering composition according to claim 3 or 4, characterized in that each substituent Y ¹ is bonded to an optionally substituted hydrocarbon radical represented by X in the color former.

6. Covering composition according to one of claims 3 to 5, characterized in that im Color former π stands for 1.

7. A composition according to one of Claims 3 to 6, characterized in that each of the symbols R ¹ , R ² , R ³ and R ⁴ in the color former stands for methyl.

8. Bclagverbindungen according to any one of claims 3 to 7, characterized in that the Color former in the form of a salt with a metal from group IA, with a metal from group HA, with optionally substituted ammonia, with optionally substituted hydrazine, with optionally substituted hydroxylamine, with optionally substituted guanidine or with a having heterocyclic base

9. Covering composition according to claim 8, characterized in that the color former is a Salt of a metal from Group IA or of optionally substituted ammonia with N- (4-sulfophenyl) -leucauramine is.

10. Covering composition according to one of the preceding claims, characterized in that that they are 0.5 to 50 wt .-% of the aliphatic amine or imine, based on the weight of the Color former, contains.

The invention relates to a paving composition for the manufacture of a clean to handle hectographic color sheet with a color former of the formula

Ν — A — CH-Β — Ν

R-

R ⁴

wherein A and B each independently represent an optionally substituted 1,4-arylene radical; each of the symbols R ¹ , R ² , R ³ and R ⁴ independently represents hydrogen or an optionally substituted alkyl, aralkyl, cycloalkyl or aryl radical, or forms part of a divalent organic chain which, together with the adjacent nitrogen atom, forms a heterocyclic Ring forms; Q is —o— or —NR- (where R is hydrogen or a hydroxyl or alkoxy radical or an optionally substituted amino, alkyl, aralkyl or cycloalkyl radical) and X is hydrogen or an optionally substituted hydrocarbon radical which is one or more May contain heteroatoms, or R and X together with the adjacent nitrogen atom form an optionally substituted heterocyclic ring.

There are already clean to handle hecterographic color sheets for the spirit carbon transfer printing process known, which consist of a fabric or other suitable film or sheet material,

to on which there is a covering that is colorless Contains derivative of a basic dye. In the copying process, the color sheet is coated with the Surface applied to the surface of a die sheet, whereupon the other side of the same then

is labeled what a transfer of the pavement as an essentially colorless inverted image on the first called surface of the stencil sheet at the points where the ink sheet and the

Die sheet have been compressed. The stencil sheet is then covered with a series of sheets of paper brought into contact with a suitable spirit carbon transfer fluid, such as. B. Ethanol, are moistened. The liquid dissolves part of the basic dye derivative and transfers it on a sheet of paper, where it deals with an activating substance, such as B. an acid, combined so that a visible color arises, which is the original Lettering reproduced on the die sheet

From DE-OS 21 10 518.0 are clean to handle hectographic color sheets are known which have a coating which is a colorless leucauramine compound Contains From these color sheets, stencil sheets can be obtained, if they are with a Appropriate ink sheet are brought into contact, result in a multitude of copies on which the The original lettering is reproduced in a blue color. In some cases, however, the will show coated papers and the flooring composition used in their production have a tendency to discoloration, especially under the influence of light.

The invention is based on the object of providing a covering composition of the type mentioned at the outset to create, whose tendency to discolour when exposed to light, is reduced.

The object is achieved in that the coating composition according to the invention is an aliphatic Contains amine or a 1min.

Examples of 1,4-arylene radicals represented by A and B are shown are in particular 1,4-phenylene but also 1,4-naphthylene residues. Examples of substituents which may be present on the arylene radicals mentioned are halogen atoms and optionally substituted ones Alkyl or alkoxy groups. Other substituents that may be present on the arylene radicals are, for. B. Bridging groups so that the compound of formula I has the structure

has, wherein R ¹ , R ² , R ³ , R ⁴ , Q and X have the meanings already given and Z stands for a direct bond or a divalent atom or a divalent group, such as. B. oxygen, sulfur or isopropylidene stands. However, it is preferred that there be no substituents on Λ or B. If there are substituents, it is preferred that they are alkyl radicals.

Hydrocarbon radicals that can be represented by X are e.g. B. aryl, e.g. phenyl and naphthyl, alkyl, e.g. methyl and ethyl, and various alkyl-aryl combinations, e.g. Benzyl. Hydrocarbon radicals containing heteroatoms are e.g. B. pyridyl and quinolyl. A isit preferably aryl.

Examples of optionally substituted alkyl radicals which can be represented by R, R ¹ , R ² , R ³ and R ⁴ are optionally substituted lower alkyl radicals, for example ethyl, propyl, butyl, 0-hydroxyethyl, 0-chloroethyI, 0-pyridine l-ylethyl and especially methyl.

Examples of optionally substituted aralkyl radicals which can be represented by R, R ¹ , R ² , R ³ and R ⁴ are 4-methoxybenzyl, 2-methylbenzyl and, in particular, benzyl.

Examples of optionally substituted cycloalkyl radicals represented by R, R ¹ , R ² , R ³ and R ″

ίο are 2-methylcyclohexyl, 4-methylcyclohexyl, Cyclopentyl and especially cyclohexyl.

Examples of optionally substituted aryl radicals which can be represented by R ¹ , R ² , R ³ and R ⁴ are 2-methylphenyl, 4-methylphenyl, 3-chlorophenyl, naphth-2-yl and, in particular, phenyl.

Examples of optionally substituted amino groups which can be represented by R are Dialkylamino groups such as dimethylamine and diethylamino, and examples of alkoxy groups

are methoxy and ethoxy.

If either R ¹ or R ² forms part of a divalent organic chain which, together with the neighboring nitrogen atom, forms a heterocyclic ring, then this may be the case because R ¹ and R ² are connected to one another or because at least one of the groups R ¹ and R ² is bonded to the arylene radical A. The radicals R ³ and R ⁴ can form parts of heterocyclic rings in the same way.

Examples of heterocyclic rings which can be formed by R ¹ and R ² or by R ³ and R ⁴ together are 5- or 6-membered rings, such as. B. piperidine, N-methylpiperazine and morpholine rings. Examples of heterocyclic rings which can be formed by R ¹ and / or R ² with a bond to the arylene radical A, or by R ³ and / or R ⁴ with a bond to the adjacent arylene radical, are julolidin-8-yl, N-methyltetrahydroquinoline -6-yl and 1,2-dimethylindolin-5-yl.

Preferably R is a hydrogen atom or an alkyl radical or forms together with X and the adjacent nitrogen atom forms a heterocyclic ring. Examples of heterocyclic rings represented by R and X can be represented together with the nitrogen atom, are 5- or 6-membered rings, such as. B. Pyrrolidine, piperidine and morpholine.

Preferably, R ¹ , R ² , R ³ and R ^{4 are} optionally substituted alkyl radicals, in particular unsubstituted alkyl radicals, for example methyl or ethyl. In

suitable pairs such as B. R ¹ and R ² together, they can also form divalent organic chains, preferably hydrocarbon chains.

In addition to the substituents already mentioned, the compounds of the formula I can be or form multiple substituents that allow the compound to exist in ionic form.

Particularly useful compounds thus have the general formula

R ¹ R ³

Ν — A — CH-Β — Ν

R ² QR ⁴

wherein A, B, R ¹ , R ² , R ³ , R \ Q and X are the ones already

Have given meanings, Y ^{1 stands} for a group which allows the compound to exist in anionic form, and η stands for a value of 1.2 or 3

Examples of groups of the formula Y ¹ are sulfo, sulfino, sulfato, sulfito, thiosulfato, thiosulfono, thiosulfino, carboxy, thiocarboxy, radicals of the formula —D — E—, where D is oxygen, sulfur or a direct bond and E is a Radical of the formula

OH

OH

-P -P

ll \ I

O OF OF

OH

- P or

• Il \

O F

OH

I. —Ρ

where F is hydrogen or a hydrocarbon radical and corresponding radicals in which one or more of the oxygen atoms have been replaced by sulfur, and, provided Y ¹ is bonded to a carbon atom which forms part of an aromatic carbocyclic or heterocyclic system, also hydroxyl and mercapto groups .

Any of the ^{substituents represented by Y 1} may be attached to ring A or B or to any of the ^{radicals represented by R, R 1} , R ² , R ^3, and R ⁴ , but is preferably attached to X. If there is more than one substituent Y ¹ in the compound, then these substituents can be the same or different. For example, in the case of a compound which contains two substituents Y ¹ , these two can be sulpho radicals, or one can be a sulpho radical and the other can be a hydroxy radical. Preferably η is 1.

The surfacing compositions according to the invention are particularly effective when they contain a compound of the formula III in the form of a salt of a metal from group IA, a metal from group HA, optionally substituted ammonia, optionally substituted hydrazine, optionally substituted hydroxylamine, optionally substituted Guanidine or from a heterocyclic base. In the salt, the amount of the metals and nitrogen bases mentioned is equivalent to at least one of the substituents Y ¹ . Particularly useful Group IA metals are sodium, potassium, and lithium. Particularly useful metals of group ΠΑ are magnesium and calcium.

The substituted ammonium salts can be primary, secondary or tertiary amine salts or quaternaries Be ammonium salts.

Other useful compounds have the general formula

R ¹ I

Ν — A — CH-Β —Ν (III)

R ² QR *

wherein A, B, R ¹ , R ² , R ³ , R ⁴ , Q and η have the meanings already given and Y ^{2 stands} for a group which allows the compound, in examples of groups of the formula Y ² are groups of formula

- -NR ⁵ R ⁶ R ⁷ , = NR ⁵ R ⁶ , = NR ^; , -SR ⁵ R ⁶ and = SR ^S.

wherein each of the symbols R ⁵ , R ⁶ and R ⁷ independently represents an optionally substituted alkyl, aralkyl or cycloalkyl radical or forms part of a heterocyclic ring which contains the adjacent nitrogen or sulfur atom, these groups having a corresponding number of anions are associated with the fact that electrical neutrality prevails

Examples of optionally substituted alkyl radicals which can be represented by R ⁵ , R ⁶ and R ⁷ are optionally substituted lower alkyl radicals, for example ethyl, propyl, butyl, jJ-hydroxyethyl, jS-chloroethyl and especially methyl

Examples of optionally substituted cycloalkyl radicals which can be represented by R ⁵ , R ⁶ and R ⁷ are 2-methylcyclohexyl, 4-methylcyclohexyl, cyclopentyl and, in particular, cyclohexyl.

Examples of optionally substituted aralkyl radicals which can be represented by R ⁵ , R ⁶ and R ⁷ are 4-methoxybenzyl, 2-methylbenzyl and, in particular, benzyl.

If one of the groups R ⁵ , R ⁶ and R ⁷ forms part of a heterocyclic ring which contains the adjacent nitrogen atom, then this can be the FAII because at least two of the groups R ⁵ , R ⁶ and R ⁷ are connected to one another or homogenized , so that a heterocyclic ring or rings are formed with the nitrogen atom, v / orin the nitrogen atom is bonded to carbon atoms which are present in the said heterocyclic ring or in the said rings, either by single bonds or by a single and a double bond or because one or two of the substituents R ⁵ , R ⁶ and R ⁷ are bonded to a hydrocarbon radical to which the nitrogen atom is also bonded.

Examples of heterocyclic rings which are formed by connecting at least two of the groups R ⁵ , R ⁶ and R ⁷ and the nitrogen atom to one another so that the nitrogen atom is bonded to carbon atoms of the heterocyclic ring through simple bonds are pyrrolidine, pyrroline -, piperidine-. Morpholine, piperazine and pyrrole rings and also rings in which R ⁵ , R ⁶ and R ⁷ are connected to one another, so that they form a polycyclic ^ with the nitrogen atom

so form a heterocyclic ring structure in which the nitrogen atom shares at least two of the rings which exist in the heterocyclic ring structure. Examples of such polycyclic ring structures are

Pyrrolizidine,

1 - azabicyclo- (2.2.1) -heptane,

Quinuclidine,

1 -azabicyclo- (3.2.1) -octane,
1 - azabicyclo- (3.2.2) -nonane,

1-isogranatanine,

Conidine,

1,5-diazabicyclo- (3.3.1) -nonane,

3,7-diazabicyclo- (3.3.1) -nonane,
Julolidine,

Hexahydrojulolidine,

Lilolidine and the

^1. , 4-Dia2abicvc! O- (2.2.2) -octanrineK structure.

Examples of heterocyclic rings formed by bonding at least two of R ⁵ , R ⁶ and R ^{7 to} one another or condensing them so that the nitrogen atom is bonded to carbon atoms of the heterocyclic rings through a single bond and a double bond are unsaturated O-membered heterocyclic rings which can contain substituents or form part of a condensed ring system. Examples of such heterocyclic rings are isoquinoline and preferably pyridine rings, which can be substituted, for example, by alkyl radicals, in particular the methyl radical, or halogen atoms. Suitable anions are chloride, bromide and methosulfate ions.

The compounds of formula I can also be a salt, soft a cation that is derived from a compound of the formula III, and an anion which is derived from a compound of the formula II contains.

Particularly useful surfacing compositions are those in which the compound of formula I is a Group IA metal salt or an optionally substituted ammonium salt of a compound of formula

R- ¹

N-A-CH-B-N

R ² NO

i
X

R ⁴

(IV)
- (SQ, H) _n

where A, B, R, R ", R ² , R \ R \ χ and η have the meanings already given. The compound of the formula IV is preferably N- (4-sulfophenyl) -leucauramine.

The compounds of formula 1 can be prepared by a compound of general formula

R ¹ R ³

N — A — CH— Β — Ν

R ² V-WR ⁴

(V)

in which A, B, R ¹ , R ² , R ³ and R ^{1 have} the meanings already given, V stands for sulfur or, preferably, oxygen and W stands for alkyl or, preferably, hydrogen, with a compound of the formula

X-QH

(VI)

wherein X and Q have the meanings already given, converts The reaction between the two compounds is expediently in a solvent, such as. B. water, alcohols or toluene, carried out at a temperature of 0 to 150 ⁰ C, preferably 20 to 100 ° C

The compounds of formula 1 can also be prepared by a compound of

formula

R ¹ R '

Ν — A —C —Β —Ν (VII)

/ Il \

R ² VR ⁴

in which A, B, R ¹ , R ² , R ³ , R ⁴ and V have the meanings already given, reduced using neutral or alkaline conditions and the product is reacted with a compound of the formula VI without isolation.

The compounds of the formula I in which R represents hydrogen can also be prepared thereby that one is an auramine derivative of the formula

p 1 ρ 3

N — A — C —Β —Ν

/ Il \

R ² NR ⁴

I.
χ

wherein A, B, R ¹ , R ² , R ³ , R "and X have the meanings already given, reduced using neutral or alkaline conditions.

The aliphatic amines that are used in the topping compositions of the invention may be present, sine primary, secondary or tertiary amines, in which the Amino groups are attached to aliphatic (i.e. non-aromatic carbon atoms. Examples of suitable te amines are n-dodecylamine, hexamethylenediamine and triethanolamine. Examples of suitable imines Guanidines, e.g. B. N, N'-di-o-tolylguanidine, N, N'-di phenylguanidine and N, N'-di-o-xylylguanidine.

The amine or imine is usually in the topping composition in an amount of from 0.5 to 5C % By weight, based on the weight of the compound of formula I, is present. To a certain extent it depends most suitable amount depending on the nature of the color former of formula I. For example, if the latter is free " Then contains acid groups, the amount of amine or imine must be such that free amine or imine in the Pad composition is present

The pavement compositions can be used in expedient ger way are produced by conventional measures, for example by kneading the dei Ingredients at a suitable temperature in a grinder or in another mixing machine, such as ζ. Β a three roll mill, a ball mill, or an attritor mill.

In addition to the materials already mentioned, the surfacing compositions can contain organic solvents, cationic surfactant waxes such as carnauba wax, ouricuri wax Sugar cane wax, beeswax, Chinese insect wax, candelilla wax, ozokerite wax and raw Montan wax, or mixtures of the above waxes petroleum jelly, such as. B. Vaseline, polymeric materials such as mixed polymers of polyvinyl acetate and polyvinyl chloride, polystyrene, ethyl cellulose and cellulose acetate, Alkyd and polyamide resins, mineral oils, lano

lin, tallow and animal and vegetable oils, hoof fat and contain blown castor oil.

The topping composition can be used in the production of clean-to-handle hectographic coloring

scroll used in spirit carbon transfer printing will.

The coating composition can be applied to the carrier material as a hot melt of the components or are preferably applied from a solvent system, wherein the ingredients in one Solvents such as B. in an aromatic hydrocarbon such. B. toluene, a ketone, alcohol, Dissolved ester, ether or chlorinated hydrocarbon or a mixture of such solvents or dispersed. The compound of formula I is preferably dispersed in the topping composition and not dissolved or melted into it.

The covering composition can be applied to the carrier material by any suitable means, for example with the aid of rollers or doctor blades and the like, so that a covering weight between 8 and 50 g / m ² and preferably between 15 and 25 g / m ^{2 is} obtained. If the carrier material consists of paper, then it should be treated with a suitable barrier coating before the coating which contains the compound of the formula I is applied. A suitable barrier covering contains ethyl cellulose or a mixed polymer of polyvinyl chloride and polyvinyl acetate. A barrier lining weight of approximately 6 g / m ² is suitable.

The amount of the compound of the formula I in the topping can be from 15 to 80% by weight, preferably from 45 to 55% % By weight, based on the total weight of the covering, are sufficient.

Suitable carrier materials are paper, glassine, plastic films and the like. Suitable papers are the so-called unbleached all-wood papers. Suitable plastic films are polypropylene films and especially polyester films, such as. B. Polyethylene terephthalate films.

The hectographic color sheet obtained in this way is largely colorless. Its appearance can but can be improved by adding a small amount of titanium dioxide.

When the coated surface of the ink sheet is in contact with a surface of a stencil sheet is brought and the other surface of the stencil sheet is written on, then an im produces a substantially colorless inverted image on the first-mentioned surface of the stencil sheet, which then with a series of copy paper sheets moistened with a copying liquid, in Presence of an electron accepting substance can be brought into contact so that a visible one Reproduction of the lettering on the stencil sheet is created on each copy sheet. Any conventional one can be used Transfer printing machine can be used.

A suitable copying liquid for use with the color sheets is industrial ethanol (64 ° OP methylated fuel) in combination with 0 to 70% by weight, preferably 0 to 20% by weight, water. It is desirable that a higher boiling polar solvent, such as B. benzyl alcohol or ethylene glycol, is also present, otherwise the first copies only one show weak picture.

The electron accepting substance can be in the copying liquid or on the hectographic Color sheet are available. So the copying liquid can be an organic acid, such as. B. tannin, wine, salicylic, Anthranilic or benzoic acid, or an inorganic one

ίο contain acid, for example hydrochloric acid. To the To reduce corrosion in the transfer printing machine, it is preferred that the electron accepting substance is present on the color sheet. If the electron accepting substance is present on the ink sheet, then can it is a so-called acidic mineral such as attapulgite, kaolin, pyrophyllite, talc, bentonite, haloysite, Calcium sulfate, calcium acetate, magnesium trisilicate, calcium phosphate or barium sulfate. It an acid-treated topping can also be used, e.g. B. one that with pavement compositions is obtained, the acids such as tannic, oleic, gallic, lauric, phosphotungstic and phosphomolybdic acid possibly contained in connection with precipitated calcium carbonate or blanc-fixe.

From a single stencil sheet up to 100 copies can be obtained.

The invention is explained in more detail below with reference to the examples, in which all parts and percentages are given in

jo weight are expressed.

example 1

A topping composition containing the following ingredients is prepared:

Similar compositions are made that contain 1% (based on the total composition) of an amine. The compositions are applied as coverings on glassine paper, and the Papers are exposed to daylight. The effects obtained are in the following table specified.

N- (4-sulfophenyl) leucauramine, 10 parts Sodium salt Dodecyl-benzyl-dimethyl- 2 parts ammonium chloride 4 pieces castor oil 2 parts Titanium dioxide Ethyl cellulose Part 1 (Variety Hercules N 10) Part 1 Silicon dioxide 25 parts toluene

Amine Before After daylight exposure 3 st 5 st 1 st Brown deep brown (D nothing Gray pale brown yellow grey orange gray (2) n-dodecylamine Gray Gray Gray Gray (3) Hexamethylenediamine Gray Gray Gray Gray (4) N, N-diethylenediamine Gray Gray Gray Gray (5) N-isopropyltrimethylenediamine Gray Gray

Example 2

A paving composition is prepared as in Example 1. Then a second composition made containing 5% hexamethylenediamine. The compositions are applied to a polyester film applied, which is exposed to daylight. The following color changes are noted.

Amine

Before

After daylight exposure
while
3 '/ ₂ st

(1) nothing gray brown

(2) hexamethylenediamine gray gray

Example 3

A paving composition is prepared as in Example 1. Then a second topping composition made containing 1% 1,2-diaminopropane. The compositions are placed on a cardboard box applied, which is exposed to daylight. The following color changes are noted.

Amine

Before After daylight exposure for 7 st

(D (2) (3) (4)

nothing gray

n-dodecylamine gray

Hexamethylenediamine gray

Ν, Ν-diethylethylene gray
diamine

N-isopropyltrimethyl gray
diamine

Hexamethylenetetramine (2%)

Gray

pale brown gray gray gray

gray leather-colored

Example 5

A paving composition is prepared as in Example 4. Then a second topping composition made containing 1% hexamethylenediamine. The composition will be on glassine paper piled up, which is then exposed to daylight. There will be the following color changes established:

Amine

Before

After daylight exposure

2 st 4 st

Amine

Before After daylight exposure for 7 st

(1) nothing Gray Brown Brown (D nothing Gray pale brown (2) 1,2-diaminopropane Gray Gray Gray .. (2) Hexamethylene Gray Gray

Example 4

A topping composition is prepared as in Example 1 except that the sodium 4-sulfophenyl-leucaurain is replaced by N- [4,4'-bis (dimethylamino) benzhydryl] morpholine. Other compositions, containing 1% different amines are also made. The compositions are based on one Cardboard box piled up and exposed to daylight with the following results.

diamine

Example 6

A coating composition is as in Example! 4 manufactured. Other compositions that 1% of various additives are also included manufactured. The compositions are coated onto a cardboard box, which is then filled with the following Results are exposed to daylight.

additive Before After daylight exposure icht 6 st 2 st 4 st Brown nothing buff pale brown Brown Gray Monoethylguanidine (free base) Gray Gray Gray Gray Diphenylguanidine Gray Gray Gray Gray N, N-di-ortho-tolylguanidine Gray Gray Gray Gray Ν, Ν-dicyclohexylguanidine Gray Gray Gray Gray Phenyl diguanide Gray Gray Gray Gray o-chlorophenyl diguanide Gray Gray Gray Gray o-tolyl diguanide Gray Gray Gray Gray N ', N ⁵ -diphenyl diguanide Gray Gray Gray Gray 4-amino-2-aminodiphenylmethane Gray Gray Gray

Example 7

A topping composition is prepared as in Example 1, except that the sodium 4-sulfophenyl-leucauramine is replaced by 4,4'-bis (dimethylaminophenyl) -2-methyl ether. The compositions are piled on a cardboard box, which is then exposed to daylight with the following results.

14th

Addition (1%)

Before after daylight exposure

2 st 4 st

6 st

nothing N, N'-di-orthotolylguanidine, hexamethylenediamine, triethanolamine

A topping composition is made up on a cardboard box as in Example 1, except that the sodium 4-sulfophenyl-leu- is layered, which is then exposed to daylight to the cauramin through the 2-methyi-4-suifophenyi-ieucaura- 15 with the following results will,
min-triethylammonium salt is replaced. The co-

Gray grey yellow Brown Brown Gray grey yellow yellow yellow Gray Gray Gray Gray Gray grey yellow grey yellow grey yellow example 8th

Addition (1%)

Before after daylight exposure

2 st 4 st

6 st

nothing Ν, Ν-di-orthotolylguanidine Triethanolamine

yellow grey Brown Brown deep brown Gray yellow grey pale brown Brown Gray yellow grey pale brown Brown

Example 9

A covering composition is applied as in Example 1 cardboard, which is then exposed to daylight

manufactured. Furthermore, similar compositions are exposed. The following color changes are

tongues produced, which observed 1% of the various additives 3η gene,
contain. The compositions are based on one

Amine

Before after daylight exposure
1 st 3 st

5 st

nothing trimethylenediamine 1,2-diaminopropane n-hexylamine decamethylenediamine dodecamethylenediamine

Gray pale brown Brown deep brown Gray Gray Gray Gray Gray Gray Gray Gray Gray gray orange orange pale brown Gray Gray Gray Gray Gray Gray Gray grey yellow

Example 10

Surfacing compositions are prepared as in Example 1. The compositions are based on one Stacked cardboard, which is then exposed to daylight. There will be the following color changes observed:

Amine (1%) Before After daylight exposure 4 si 6 st 2 st Brown Brown nothing buff pale brown buff pale brown Ν, Ν-dibenzylmethylamine pale buff pale buff buff pale brown α-methyl-benzyldimethylamine Gray pale buff Gray Gray 1,4-diamino-2,3-diphenylbutane Gray Gray Gray Gray j8,) '- diphenylpropylamine Gray Gray pale buff pale buff 2,2-bis (aminomethyl) propylbenzene Gray Gray Gray Gray l ^ -Bis - ^ - cyano-a-methyl-ethylamino) - Gray Gray hexane Gray Gray Monoethanolamine Gray Gray yellow grey yellow grey Diethanolamine yellow grey yellow grey Gray Gray Triethanolamine Gray Gray

Claims (1)

Patent claims: 1. Topping composition for the production of a clean-to-handle hectographic Color sheet with a color former of the formula R ¹ R-