DE1460778A1 - Process for the pattern-based transfer and fixation of dyes on textile surface structures - Google Patents

Description

"Process for the muscular transfer and fixation of dyes on textile fabrics. ^M

The present Srfindung refers to the mustergemäsae "transfer of dyes on textile fflächen _o ebilde means of templates. It is a term recently neuar-""The method ,, become known mainly paper for the printing, whose principle consists in that the transmission of Ifrucfcfärben 'takes place on the printed matter by means of an electrostatic field acting perpendicular to the latter, the stencil not stirring the printed matter, but being arranged at a certain distance from the latter. However, the use of this process for textile printing requires special measures - mainly

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mainly the use of tint textile dyes, which must be fixed in the textile fibers for suitable fixing operations. It is well known, the fixation of! Tarnpigmenten with suitable binders, such as resins, increase front-This kind of fixation is, however / generally not desirable because they riff the £ of, textile goods au strongly influenced or au insufficient & e ~ brauchseehtheiten It has also been found that the normal textile printing inks cannot be used for the new process because they do not have the necessary dielectric properties. It was also recognized that the application of the process to textile printing requires a special process sequence, which in turn places special demands on dye preparation.

The present invention now relates to a method for the transfer and fixation of FL.rb- fabrics on textile fabrics by means of a template arranged at a predetermined distance from the latter and using an electrostatic field acting at right angles to the stencil and the sheet-like structure, thereby marked that at least one powdery © dye * composition of a dye, a dielectric carrier and, if necessary, chemical auxiliaries are used and that immediately following the sample size and dimensions Transfer of the dye composition to the fabric an intermediate fixation is carried out, followed by the definitive fixation of the dye on or in the fiber takes place and sohliesslich that .Flat structures for the purpose of distance the excess of the dye., the dielectric The carrier, as well as the chemical auxiliaries, is washed out.

Water-soluble as well as in particular acids and alkalis to water-soluble products

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^? * ' ^{: r} * ^{r i} . UB0778.

e. J $ ätur- and resins are used "kp ^ · JSfaturharBe are rosin and ei * NTGE"öbittöi'äbeÄLyätilj As h * B * with glycerol or Pentae3? 3rthrit6l ^ erfSte ¥ tes resin 'diMörisiertes and polimerisiertes ξϋΜβ''*üatttr' Lich unsaturated or hydrogenated resin baw «jöerivat, as well as combinations with phenol or Maleinnäipaln. Us. can furthermore similar to Kolopllon3, um-ft'tt ^ eb ^ ute natural resins - like Dammar, Kopale, 3an

ffiallharz uöw * can be used «Under

dgn, Äwk4 ^; i ^ && f4: © i ^ can be found in a solid line Yinyl-Pöly- ^. As &

Haifze ₄ ueiaitier 'dittarboxylic acid such as phthalic acid, sebaceous acid in a dihydric alcohol such as ethylene glycol

such as condensation products from Se «- and hexamethylenediamine. . ■ ..

All these products have the high electrical resistance necessary for the transfer in the electrostatic field. They also have the property of not preventing the penetration of the dyes into the textile fibers during the definitive fixation and, moreover, of leaving these dye carriers After completion of the procedure, threaten to remove a waxing process properly. A number of empty large carriers also have the property of coagulating under suitable conditions of the color pattern, d, h · prevent the outlines from being blurred.

In many cases, however, it is wise to combine the dye carrier with chemical auxiliaries, which there during the definitive fixing process; s binding the

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Dyes in the textile fibers facilitate and prevent bleeding prevent swelling or coagulation of the color pattern. Sol'ehe agents are water-soluble Cellulose ethers, such as cellulose methyl ether, cellulose ether-carbonic acid derivatives, polyvinyl alcohol, Starch derivatives, sodium alginates ,. Locust bean gum and derivatives made therefrom

Depending on the type of dye carrier used, the Dye composition from an aqueous solution or »slurry and subsequent evaporation or prepared from a melt. The mixture obtained in this way is grinded and sieved, the grain fineness of the powder obtained expediently being 1 - lo ^ boII

To ensure the dielectric properties of the powdery dye composition, it can also be wake-up, the dye and any chemical auxiliaries into the dielectric which serves as a dye carrier Completely envelop the material. This wrapping can be done, for example, in such a way that the parts to be encapsulated, possibly together with basic components that are required to produce the shell, in one with it immiscible medium as fine droplets or epidemics are distributed, and that thereupon by goacervation, by an interface polycondensation or interfaces » Polymerization by reaction with 'basic components # the are present in the external medium, a shell is formed. For example, the dye, optionally, can be used together with the necessary tools, in a solvent, e.g. carbon tetrachloride, are distributed in which one. Acid chloride, e.g. sebaoyl chloride, dissolved iat. This mixture is distributed in water to fine droplets, and by adding an amine, e.g. hexamethylenediamine, optionally at an elevated temperature

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Borderline polycondensation ^: ύ1 & envelope formed. The resulting capsules can then be separated by nitration or centrifugation and then dried.

The intermediate fixiefujig. the durch'deren on da ^ fflächengebilde transferred Farhstoffkompositionlcann arrival or, Binschmelzung

- under the influence of heat or by dissolving or swelling through. Spraying with barrels or steam. Definitive fixation can take place in different ways depending on the type of fiber and dye, for example by a steam process or by the action of dry heat. Depending NaOH of dye, it is also necessary to the sheet prior to the final fixation of the dyes containing alkaline impregnation with e.iner aqueous ^solution: means to subject such as sodium hydroxide or sodium carbonate, and optionally a reducing agent for the dye.

The transfer of the dye composition to the curses ·· »■ form in the electrostatic field as well as the intermediate fixation would be carried out continuously, v / uring for the definitive fixation and the final transmission Auiivifctschen a separate work step is required. at In order to produce multicolored patterns, the various 'fiber compositions' were first applied to the Textile fabrics transferred and indefinitely connectable ; 3and the pre-fixing is carried out, whereupon the definitive Fixation and washing take place.

The method is suitable for generating color patterns ^; , on all kinds of textile fabrics, e.g. (Weave, green or nonwovens made of n ^ tive and regenerated cellulose derivatized foils, synthetic fibers such as polyamide or polyester fibers as well as mixtures of these types of fibers.

The invention is explained in more detail below on the basis of a few exemplary embodiments? '

Example 1:

A powdery dye composition is prepared as follows:

A melt is made from 200 parts by weight of rosin and 4o parts by weight of indanthrene brilliant blue 3 g powder fine (vat dye substance from the Badische Anilin- und Sodafabrik, Luctwigshafen (Germany) and 40 parts by weight Tylose DKI (cellulose methyl ether from Kalle & Co ₉ , Wiesbaden (Germany)

incorporated by rubbing _o The solidified mixture is ground by means of a mill and sieved, so that a colored powder with a fineness of 1 - lo / o is obtained. This powdery dye mass is now transferred to a cotton fabric in an electrostatic field by means of a sconce made of a fine-meshed fabric made of conductive or made conductive material The field is created in the space between the stencil and the plate zero treated for 1 minute in an infrared heating ^{channel at Ho 0} C for the purpose of intermediate fixation, the dye composition being melted into the fabric

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^; . £ er

serving Bithl aniline * Sodafabrifc)

.4 .1
1oo

9ö in a Däj | pi ^ arrielitung during

cung of &i> ji | ^r h & tfctem steam of T2o ° C! the Parbsfo ^ ff is definitely fixed ^ι: ai »Grlwebe purpose EntfViftung of Übersohiissigen

s and cellulose methyl ether with% θοίϊ§ $ άέύ $ Ι $$ Β * ϊ , for the purpose of re-oxidation of the fixing dye with an aqueous solution containing 2 g / liter of hydrogen peroxide (4- ^ Ig) and 4 ecm per 1 salmiak bti 5o - Treated at 60 ° C, washed out with water and dried. The patterned fabric obtained in this way is very light and washable.

Example 2> ,

It becomes "^ in |" powdery color composition as follows ttf ^ 't * £

The% a? E1 »el

Dough 2qo.g

of the company

(lu ^ tnf & rbstoff the ^{^:;} DlÄtschland)

^ d ^ r in the coloring

on one of these

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If necessary, this mixture is passed through a paint mill and to achieve maximum particle fineness then evaporate it in a vacuum to be completely free of water. Finally, everything is ground to a powder with particle sizes from 1 - 1o / t /. The dye composition will now as described in Example 1, according to the pattern on a cotton fabric transferred and the latter subjected to intermediate fixation by spraying it very finely with water and "is dried". · The impregnation with / an aqueous solution containing alkali and a reducing agent, which Definitive fixation and reoxidation of the dye are carried out as described in Example 1. Treated like that patterned cotton fabric shows excellent lightfastness and weakness. .

Example 5 * *

A powdery dye composition of the following composition is produced:

2oo g of a rosin glycerol ester (acid number 1o - 2o) are stirred into a mixture consisting of

40 g Cibacron Brilliant Red BD powder (reactive dye from Ciba, Basel. Switzerland) 4o g Lamitex (sodium alginate from AS Protan, Norway), "

40 g urea
88o g of water

This mixture with the dissolved components is through passed through a paint mill, evaporated in vacuo and ground the dry mixture.

The fabric to be printed is pre-impregnated with an aqueous solution containing 100 g of soda per liter (squeeze effect approx. 7o #) and dried «

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The dye composition wirdi ^a as described in Example 1, according to the pattern transferred to a viscose fabric, is carried out whereupon the intermediate fixing by heating the web during 3o seconds in a Infrarotheizkanal at 15o ° C. The fabric is then treated with hot air at 150 ° C for 4 minutes and thus finally fixed. The fabric is then washed with a large excess of water at 50 - 60 ° C to remove the excess dye, the auxiliaries and the dye carrier and dried. The fabric obtained in this way is distinguished by its excellent lightfastness and washfastness.

Example 4: ■

A powdery dye composition is made

, 40 g Irganolor-ange GEDS (acid dye from Geigy, Basel, Switzerland) 200 g rosin
5ο g urea

produced and melted together by friction and the solidified mass ground to a powder with a particle size of 1 - 1 ο flu «

The dye composition is now, as described in Example 1, transferred according to the pattern onto a nylon fabric, whereupon the intermediate fixing is carried out. The material web is heated for 30 seconds in an infrared heating channel at 14o-15o ° C. Then, the Ge;? Ebe subjected during 6o minutes in a damping device to the action of saturated steam at 11O ⁰ C, is definitely fixed whereby the dye. Daäaiah the fabric is washed with water at 5ο - 6ο ⁰ C to remove the excess dye, the auxiliaries and the dye carrier, and dry

Instead of an acid dye in the same way, a dye AUB the group of Metallkomplexiarb- s can be used materials ·,

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Claims (1)

U60778 claims » 1. Process for the pattern-based transfer and fixation of dyes on textile surface structures by means of one at a predetermined distance from the latter arranged stencil and using a right angle to the stencil and the surface structure. acting electrostatic field, characterized in that 'at least a 'powdery dye composition from a! dye, a dielectric carrier material and, if necessary, chemical auxiliaries are used and that immediately ' following the pattern-based transfer of the fruit composition onto the surface structure, there is a difference clamp fixation is made, whereupon the definitive fixation of the dye on or to the fiber takes place and finally the flat structure. for the purpose of removing the Excess of the dye, the dielectric carrier, as well as the chemical auxiliaries is washed out » 2 »Method according to claim 1, characterized in that that the dielectric carrier material is water-soluble or Natural and synthetic resins that can be split by acids or alkalis to form water-soluble products are used » 3 · The method of claim 2, characterized in that as a dielectric geä Jr ^? '■.. ·· ■ ■' serve mate fial rosin uni ^f derivatives thereof " 4 »Method according to claim 2, characterized in that that vinyl Jalymerisationsharze used as synthetic resins will" , 909832/1046 BAB • U60778 5 # method according to claim ^ jladuroh characterized that as synthetic resins not hard; <3ftä. $ '. Phenolic resins used will, ' ' ' '· 6, method according to claim 2 _f, characterized in that polyester resins are used as synthetic resins, 7 y ^ ifahr'fn according to claim 2, characterized in that that polyamides are used as synthetic resins. 8. The method according to claim 1, characterized in that that dijä 'dye of fkompoait ion as a chemical aid Contains cellulose ether. ' ^ J. The method according to claim i, "characterized in that that the dye composition as a chemical aid Contains alginates, 1p * method according to claim 1, characterized in that daji the dye composition as a chemical aid contains carob flour and its derivatives. 11, method according to claim 1, characterized in, that the powdery dye composition has a grain size from 1 - 1oA. 12. The method according to claim 1, characterized in that the intermediate fixing of the ^ Uf data sheet-like structure
transferred Fa ^ bssbffkompooitlbn takes place by melting or melting under the influence of heat, 13. Procedure according to. Claim 1 _f fladuroh gekennzeichhei ;, that the dissociation of what is transferred to the planar structure Dyestuff Komppaitioii durcl] l, anIPsen or swelling 909832/1046 U60778 was carried out by spraying with water or water vapor Method according to claim 1, characterized in that the sheet-like structure is subjected to impregnation with the solution of alkaline agents and, if necessary, a reducing agent for the dye prior to the definitive fixation of the dyes, _{or the like} 15 · The method according to claim 1, characterized by, that the definitive fixation of the dyes transferred to the surface structure by the action of steam or «, dry heat takes place. 16. The method according to claim 1, characterized in, that the dye and optionally chemical auxiliaries are encased in the dielectric substrate. 17. The method according to claim 16, characterized in that that the shell ues dielectric by interfacial polymerization Carrier material or its components is formed «, 1o. Process according to Claim 16, characterized in that the casing is formed by boundary surface polycondensation of the dielectric carrier or whose components are _o ebiluet * 1 i . Vui'i, iir ^ n according to claim 1 ^r , α χ · α arch ^ ekennzeicnnet, the shell uurch Koacervatio · "aes dielectric i'rä ^ eril bij.v. ue-iVen components _O cüiii-ae ~ o iot. 909832/1046 BAD ORiG ^ NAL