CS217124B1 - Method of portable wet print of cellulose flat configurations - Google Patents

Description

The present invention relates to a process for the wet transfer printing of cellulosic materials in the form of fabrics, knitted fabrics, nonwovens, films and other sheets of anionic dyes using compounds of the general formula.

0¾

N - Rr where R 1 R ₃ is alkyl or hydroxyalkyl having a carbon number of 1 to 3

R 8 is an alkylaryl having a carbon number of 7 to 10, a phenyl, a dialkyl ether residue having a total carbon number of 3 to 6 or a cycloalkyl having a carbon number of 5 to 8 Y is -CH-CH ₂ J-CH-CHp;

OH Cl.

⁰

-CH-CHg-0-6-CH ₃

OH

X is an anion of a strong inorganic or organic acid with a number 1, 2 or 3 i.

217 124

217 124 to process the printed substrate in an alkaline environment and to transfer it during transfer printing. to the perfect fixaoi anionic color in.

Wet transfer printing procedures are well known ·

The anionic dyes are printed on a paper or metal support and are transferred at temperatures above 96 ° C on a calender to a moistened sheet, which may contain compounds that increase the fixation of the anionic dyes. Known compounds for improving the fixation of anionic dyes in transfer printing are primarily glyoxal-based resins, melamine and polyglycol-based resins. Further, these are acrylic thermoreactive copolymers. Additives of hydrotropes, such as urea, are also known to increase the solubility of dyes at transfer temperatures. The disadvantage of all these processes is the lack of hundreds of years of printing, especially in abrasion, since the dye is fixed to the fiber only by meohanloco-physical. The compounds of formula (1) react with cellulose in an alkaline medium to form a covalent bond. The quaternary ammonium group is then able to bind ionic anionic dyes. This binding can be achieved especially with cotton, viscose and flax. Suitable anionic dyes for the process according to the invention are substance, reactive, acidic and metal complex dyes. These dyes are printed on a paper or metal support from an aqueous or organic solvent environment. The compounds of formula (1) may be applied to the printed material prior to transfer printing by impregnating the fabric with a solution of the compounds of the invention with added alkali, reacting at room temperature or elevated temperature, washing, neutralizing and washing. This is followed by the actual transfer printing, drying of the printed fabric and the usual finishing, i.e. washing or soaping and drying.

Another possibility is to apply compounds of the formula 1 with addition of alkali to the material during the actual transfer, where the fabric is impregnated and at the same time the transfer printing is carried out · Drying of the printing is followed by steaming or dry heat treatment and usual. drying. Said processes and compounds of the invention achieve high dye yield and high print stability.

The applicability of the formulations of the invention in wet transfer printing technology can be documented in these Examples and Example 1

The cotton fabric is impregnated with a bath bath containing customary pretreatment containing g of N (2-hydroxy-3-chloropropyl) N-benzyl-N, N-dimethylammonium chloride g of sodium hydroxide g of ethoxylated nonylphenol with 6 moles of ethylene oxide per 70 liter bath temperature. Deň: 18 ° C.

The fabric is left in pack at 20 to 25 ° C for 10 hours *, after which it is washed, neutralized, washed and squeezed to a residual moisture content of 70% · The fabric is then routed to a transfer printing calender where it comes into contact for 1 minute and temperature 120 ° 0 and paper strip printed with dye reactive red # CI 45 Reactive blue No C.I. Reactive Brown is followed by drying, washing and soaping by conventional methods.

The resulting print shows very good wet stability

Example 2

The viscose fabric is pre-treated in a customary manner and is impregnated on the fularda with a bath containing one liter

217 124 g of N- (2-hydroxy-3-chloropropyl) N-ethylenophenyl-N, N-dimethylammonium umbromide g sodium carbonate g sodium alginate (2% aqueous solution) g ethoxylated oleyl alcohol (with 15 moles of ethylene oxide) at a rinse of 80%, and bath temperature 20 ° C.

The wrinkled fabric is fed to a transfer calender where it comes into contact for 1 min. and at a temperature of 100 ° C with a paper web printed with dye direct blue No. G.I. 109 straight blue C.I. 66 direct yellow C.I. 44 direct red C.I. 80, then the printed fabric is dried at 120 ° C and condensed at 150 ° C (hotflue) for 90 seconds. Printing is completed by conventional washing and soaping.

The result is printing with very good wet stability.

Example 3

Cotton fabric pre-treated is impregnated on a bath fuland containing, per liter, g of N - (2-hydroxy-3-chloropropyl) - H-benzyl-l, U-dimethylammonium sulfate g sodium hydroxide g ethoxylated nonylphenol with 8 moles of ethylene oxide at 70% rinse and a bath temperature of 20 ° C.

The fabric is dried at 120 ° C and fixed in terraohotflu at 160 ° C for 2 minutes, followed by washing, neutralizing, washing and rinsing the fabric to a residual moisture of 60%. The fabric is then fed to a transfer printing calender where it is contacted for 30 seconds at a temperature of 100 ° C with a paper web that is printed with a printing paste of the following composition g of a direct yellow, C.I. 28 10 g direct blue No, C.I. 106 g ethylcellulose 68 g ethyl alcohol

The fabric is dried, washed, soaped and washed after transfer of the pattern.

The result is printing with very good wet stability.

Example 4

The cotton, pre-treated fabric is soaked in a bath bath containing per liter of sodium hydroxide g of sodium alginate (31% aqueous solution) of ethoxylated nonylphenol with 8 moles of ethylene oxide at a rinse 70 and a bath temperature of 20 ° C.

The crimped fabric is fed into a transfer printing calender where it enters the contact point at a temperature of 105 ° C for 1 minute with a paper web, which is printed with a printing paste of the composition tg reactive blue 6. C.I. 9 g of N- (3-etanoyloxy-2-hydroxypropyl) -l, N-trimethylamomacetate 5 g of ethylcellulose b5 g of ethyl alcohol

After transferring the sample, the fabric is dried and treated with dry heat, for example, for 2 minutes at 150 ° C. The usual finishing, i.e., washing and soaping, follows. The result is printing with very good soft fastnesses ·

Claims (1)

SUBJECT OF THE INVENTION The method of transfer printing is an anionic dye characterized by the fact that the printed fertile formation is treated together with alkali compounds + 1 _T nn before or simultaneously during printing. Y - O - N - R ₂ is alkyl or hydroxyalkyl having a carbon number of 1 to 3 is an alkylaryl having a carbon number of 7 to 10, a phenyl, a dlalkylether radical having a total number of carbons of 5 and 18 is - CH - CH - f - CH - CH - or \ / II O OH 01 - CH - CH - o - C - OHI OH X is an anion of a strong inorganic or organic acid n is an oil number of 1, 2 or 3 Printed by Moravian Printing Works,