CH622301A5 - Printing ink for transfer printing - Google Patents

Description

The invention relates to a commercially available printing ink for transfer printing, containing a dye of formula 1

0 OH

NH-R-X

OH

(l).

in the

R is C2 or C3 alkylene and X is chlorine, bromine, cyano or C, - to C4-alkoxy. Individual X radicals are in addition to the already mentioned e.g. Ethoxy, propoxy or butoxy and especially methoxy. R are, for example, (CH2) 3, -CH -CH2-,

CH3

Example 2

A copper gravure paper is printed with a color consisting of 5 parts of the dye of the formula see drawing sheet No. 1, example 2.20 parts of a styrene polymer and 80 parts of toluene, and the print is dried. The paper print pattern is then transferred to a polyacrylonitrile fabric in the manner described in Example 1 in 25 seconds at 190 ° C. You get a red print on a white background.

30th

Example 3

A paper is printed in rotary film printing with a color consisting of 20 parts of the dye of the formula see drawing number 1, example 3.380 parts of water, 400 parts of a 10% strength ether ether thickener and 200 parts of a 10% strength starch ether thickener, and the print is dried . Then you transfer the paper print pattern in the manner described in Example 1 in 30 seconds at 210 ° C on a polyester fabric. You get a red print on a white background.

Example 4

A transfer paper is printed in a desired pattern in offset printing with a color which consists of 10 parts of the dye of the formula see drawing number 1, example 4 and 90 parts of a varnish which is composed as follows: 40 parts of phenol-modified rosin resin,

20 parts vegetable drying oils,

10 parts long oil alkyd resin,

25 parts of mineral oil,

10 parts Aerosil and 2 parts cobalt siccative.

The dried print is placed with the print side on a polyacrylonitrile fabric and treated on a sheet press for 25 seconds at 205 ° C. You get a light and wet fast red print on a white background.

50

55

-CH -.- CH - and preferably -CH2-CH2-I

CH,

The dyes of the formula (1) are preferably suitable for printing on polyesters, but also for acrylonitrile polymers. The fastness properties on these substrates are in some cases very good, wet and light fastness properties should be mentioned.

The compounds with -R-X = CH2CH2C1 and in particular -CH2-CH2OCH3 are preferred.

The transfer printing process is e.g. from FR-PS 1 223 330 and DT-OS 1 769 757, dye preparations and auxiliary carriers therefor are from DT-OS 1 771 813 and

Example 5

A gravure printing paper is printed with a color which consists of 60 parts of 10 parts of the dye of the formula see drawing number 1, example 5 and 90 parts of a varnish, which is composed as follows:

10 parts of ethyl cellulose,

75 parts of ethyl alcohol,

65 20 parts of ethyl acetate and 5 parts of ethyl glycol.

The dried paper is left with the printed side lying on a polyester fabric together with this 30

3rd

622 301

Run through a calender at 200 ° C for seconds. The dye is transferred to the polyester fabric. You get a lightfast and washable red print on a white background.

Example 6

A rotary film printing paper is printed with a color which consists of 20 parts of the dye of the formula

Drawing sheet No. 1, example 6, 280 parts of water and 700 parts of an 8% ethereal thickener consists and dries the print. The paper print pattern is then transferred to a polyester fabric in the manner described in Example 2 in 5 seconds at 210 ° C. You get a wet-fast red print on a white background.

C.

1 sheet of drawings

Claims (3)

622 301 1,771,812. The dyes of formula (1) can be used according to the known methods. In the following examples, parts and percentages are by weight unless otherwise noted. The formulas belonging to the examples are compiled on the drawing sheet. Example and formula numbers match. example 1 A paper is printed in flexographic printing with a color consisting of 10 parts of the dye of the formula see drawing no. 1, example 1.5 parts of ethyl cellulose, 70 parts of ethyl alcohol, 20 parts of ethyl acetate and 5 parts of ethyl glycol, and the print is dried. The paper, with the printed side lying on a knitted polyester fabric, is run with it through a calender at 200 ° C. for 30 seconds. The dye is transferred to the knitted fabric, resulting in a red print on a white background. 0 OH NHCH2CH20CH ^ 2nd PATENT CLAIMS 1. Commercial ink for transfer printing, containing a dye of formula 1 NH-R-X (l), in the R C2 or C3 alkylene and 1 X is chlorine, bromine, cyan or Cr to C4-alkoxy. 2. Printing ink according to claim 1, containing the dye of the formula 3. Use of the printing ink according to claim 1 for printing on an auxiliary carrier for transfer printing.