DE2047872A1 - Process for dyeing fabrics made from synthetic fibers - Google Patents

Description

The invention relates to a new method eura dyeing fabrics »Ttlohera or fabrics made from synthetic fibers ·

The typical ones usually carried out in practice Dyeing processes for cloths »webs» fabrics or pieces made of synthetic fibers include immersion dyeing and the pad or upholstery dye tong, for example according to the pad or upholstery thermosol process and the pad or upholstery steam process · In dew dyeing the fabric to be dyed is immersed in an aqueous dye bath and gradually the Bath temperature increased · Although the procedure has the advantage the uniformity of the dyed Parbtunus possesses, does it have the error olner low productivity »da ea ansatfsweiaa is running »which is why a long time

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and numerous manipulations or workers are required. Block coloring generally refers to a process wherein the cloth is immersed in a dye dispersion, the excess dye liquid from the cloth Is removed by squeezing with a mangle and the like, then the cloth is predried and then used for Fixing the dye is heated. Continuous operation is possible with this process, see above that productivity can advantageously be improved. However, the method still shows the following Failure. As the dye concentration in the dye immersion bath is increased, the bath will become with the lapse of time accessible for changes, e.g. formation of sedimentation due to aggregation of the dye, and the dispersion in the immersion bath becomes unstable. As a result, find such adverse results as Tail formation, uneven coloring, formation of Stains and the like. Instead. Therefore, the dye concentration in the immersion bath is inevitably limited. Farther products with a deep color are hardly available with the upholstery thermosol process, since the dye is in the heated Atmosphere due to sublimation during the heating to fix the dye penetrates and continues it is difficult to complete the dye fixing device. For these reasons, the achievement of is uniform and deep-colored cloths extremely difficult. Furthermore, the above predrying is usually done Generally used in upholstery drying, but drying efficiency is low and uniform Coloring is extremely difficult to achieve. This is why the color is inconsistent due to the migration of the The dye is practically unavoidable because of the non-uniform drying. These bugs are especially common

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thick or thin textiles. As a result, the application of the upholstery dye is seriously limited. Farther the advantages of the method result, i. H. high level of production, to the full extent only at the Mass production of special single wipes. In the Production of smaller quantities of numerous different structures increases the productivity of the process considerably reduced, since the preparatory stage, such as cleaning, is very time-consuming.

The object of the invention consists in a new method for dyeing fabrics, cloths, webs and Like. Made of synthetic fibers, in which there is a very high productivity and that to a deep coloring with excellent uniformity.

A further object of the invention consists in a new dyeing process in which a substantial simplification of procedures and a reduction in labor is achieved and that is excellent in applicability the production of small quantities of numerous different qualities shows.

The above objects are achieved by the present method of dyeing fabrics from synthetic Fibers met, which consists in the fact that a dye mass consisting of at least one dye from the Group of nonionic, anionic and cationic colors with an affinity for the cloth and an organic one Matrix of at least one aliphatic polyhydroxy compound is built up and is solid at normal temperature and at temperatures not higher than 80 ° C above the transition temperature of the second order of synthetic fibers melts, in water or a low boiling point organic lubricant is soluble and

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is at least partially compatible with the dye in the molten state and derivatives of such compounds is produced, the mass is heated to form a melt, the melt on the cloth below Conditions are raised so that there is practically no penetration of the dye into the synthetic fibers, the coated sheet under conditions that allow the dye component in the coating to penetrate the Fibers are allowed to be heat treated and then the cloth with water or the low-boiling organic Solvent is treated to remove the coating.

The present method is explained in detail below.

The term "cloth" here includes a sheet-shaped or ribbon-shaped, fibrous material, such as pieces of fabric, Pieces, nonwoven fabrics, carpets and films constructed from threads or spun yarn. Of the The term "at least partially compatible in the molten state" used here means that in the present case Process applied organic matrix either completely or at least partially the dye

P dissolves and disperses the remainder uniformly and stably in the molten state. The organic matrix preferably dissolves at least 0.1% by weight of the dye used in the molten state.

The characteristic features of the present Process lie in the production of a melt from a non-aqueous dye mass, which consists of the dye and an organic matrix which is solid at normal temperature but easily melts and at least partially melted with the dye

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zenen state is compatible, the absorption of the melt on the cloth to be dyed, the formation of a uniform Coating layer of the dye composition under conditions that practically no penetration of the dye component of the Mass in the synthetic fibers forming the cloth., D. H. at this stage the cloth is practically undyed, and the subsequent heat treatment of the coated cloth with penetration of the dye component in the coating layer in the synthetic fibers underneath Achieving the color of the cloth. In the present process, the dye component essentially penetrates into the fibers only in the heat treatment stage and results in a coloring of the cloth. Because of this, can the heat treatment step will hereinafter be referred to as the dye-fixing step.

It was found that in the present process there is an important requirement for obtaining colored Cloths with a uniform color and a pleasant feel that the covering is carried out under conditions which practically do not allow any substantial penetration of the Hasse dye into the fibers. In a process where there is substantial penetration of the dye component into the fibers at the time of coating takes place, it is necessary to keep the molten dye mass in a container at high Maintain temperatures for long periods of time, causing thermal decomposition of the organic matrix and the Introduces dye, so that the quality of the product is deteriorated. Even if the covering by padding or padding or roll coating is effected, the cloth is inevitably at considerably high pressures exposed to the roller and the like. Such at high

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Pressures exerted at temperatures result in a markedly coarse and flat handle of the product. When the pulling over carried out by padding or padding, if the dye adsorption decreases during covering takes place, the dye concentration in the molten dye mass contained in a container gradually decreasing, causing a noticeable change in the adsorbed dye concentration between the early Stage and the late stage of dyeing. Especially when coloring using a mixture is carried out by more than one dye, the quantitative ratio of the dye component will vary in mass over time due to the varying degree of adsorption between the dyes, and in doing so, fatal defects such as a change are occasionally obtained in the colored product the color tint over large areas.

In the present process, there is substantial penetration of the dye component into the synthetic Fibers while the molten mass of dye is drawn into or prevented from being drawn onto the cloth Penetration is mainly determined by two factors, namely the temperature of the molten mass at the time the coating and the length of time during which the mass was kept on the cloth at this temperature will. The higher the temperature and the longer the duration the higher the temperature, the greater the tendency of the dye component to get into the synthetic fibers to penetrate. Therefore, it is generally true that when covering by dipping the cloth in a bath, the molten mass, the tendency for dye penetration into the fibers is greater compared to that when covering the whale, since in the former case the

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Cloth given mass is kept at the high temperature for a long period of time. Furthermore, the higher the melting point of the organic matrix, the greater the tendency for dye to penetrate into the fibers during coating.

This under conditions that practically no penetration of the dye constituent in the molten dye mass Allowing in the fibers according to the present method, coated cloth is either completely undyed or at most very slightly colored, so that it looks like pollution when it is with water or a low-boiling organic solvent with solubility for the organic matrix is treated. In this It should be noted that the cloth is "practically undyed". As a result, in practical Execution of the present process the ■ coating conditions, in which there is practically no penetration of the dye component of the mass into the fibers, can easily be determined empirically. By coating the cloth with the melted dye mass at one previous experiment and treatment of the coated cloth with one of the above-mentioned washing treatments the state of the dye adsorption on the cloth can be assessed with the naked eye and the suitable conditions can be determined from this experimental result.

In the present method, the application of the mass by means of roller mounting is the optimal embodiment in practice for the reasons already given. If roller winding is used, In general, the amount of application can be small and will continue to be, since the iLo / iL ^ t far from the roller with the Cloth is short, the melted one drawn on the cloth

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Dye mass cooled rapidly after being released from the roller and solidified within a very short period of time. The solid coating layer formed thereby Dye mass is neither flowable nor sticky. Therefore, during the transport of the cloth, the Applicator means the phenomenon of mass migration from the cloth to parts of the device, for example Guide rollers or brackets that are in contact with the cloth, with the formation of soiling of the same, this phenomenon being referred to as contact contamination in the following, hardly or never taking place. This represents represents one of the very important advantages of the present method, as will be shown later.

The fabric or the cloth, which are covered in this way with the dye mass, is then under conditions heat-treated to allow the dye component of the coating to penetrate into the fibers. At this stage, the cloth or fabric is colored for the first time. The main factors leading to Determine whether dye penetration during the Heating takes place are the heating temperature, the time period and the atmosphere. The dye penetration in the fibers is favored when the heating temperature higher and the heating time becomes longer. The ease of penetration also differs depending on the heating atmosphere, d. H. whether the heating is in air or in a vessel with an open atmosphere with a supply of steam or in takes place in an airtight, closed vessel under increased pressure and steam. In general, the Penetration easier when moist than when dry and in the presence of moisture in a closed System at a higher temperature than in an open system. The preferred heating conditions according to

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of the invention are typically 150 to 250 ° C for 30 seconds to 40 minutes when dry heat is applied and 140 to 220 ° C for 20 seconds to 30 minutes for an open system and moist heat. In a closed system and wet heat, the heating is performed at 100 to 13O ⁰ C, preferably for 10 to 60 minutes. During this heat treatment, the organic matrix component in the coating layer does not penetrate into the fibers, but remains outside the fibers. Therefore, after the dye component has been fixed in the fibers by heating, the layer mainly composed of the organic matrix remaining on the cloth is removed by washing with water or an organic solvent with a low boiling point which dissolves the organic matrix. The coating step and the dye fixing step in the present method have been described in detail above. It goes without saying that heating must not cause the synthetic fibers constituting the cloth or fabric to melt or cause thermal damage to deteriorate handling properties. From this point of view, the melting temperatures of the organic matrix used must not exceed a value of at most 80 ° C. above the transition temperature of the second order of the synthetic fibers that form the cloth or fabric.

In the present dyeing process, a dye composition, which consists of at least one dye and one organic matrix, which is solid at normal temperature and has good compatibility with the dye, in the molten state Condition applied. That's why the dye can

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in far higher concentrations than in conventional dye baths be contained and the molten mass can be drawn uniformly onto the cloth or fabric, even if only a small amount thereof is used, preferably according to a roller drawing system. In the present process, the sublimation and dissipation of the dye into the atmosphere is during of heating for dye fixation, as observed in the upholstery thermosol process, is practical Avoided and therefore deep-colored cloths or Substances can be obtained using only small amounts of the dye. As the uniform covering is effected even without substantial coloring of the cloth or the fabric and the coloring of the same only with Heating of the uniformly coated cloth or fabric according to the invention takes place are uniformly colored Cloths or fabrics easily available with good handling or good grip.

Furthermore, show those with the dye compositions according to According to the invention, fabrics or cloths coated have the unique property that they hardly get in contact with soiling show as already discussed. Therefore, the cleaning of the device, which was unavoidably necessary up to now, is unnecessary each time the staining batch is changed in the present proceedings. As a result, continued staining with numerous dye attachments is in each small amount possible for the first time. In the previously common methods, the device had to every change in the dyeing approach or dyeing pattern to be cleaned in order to avoid the adverse effect of contact soiling, which inevitably took place to be avoided. This resulted in the limitation of a continuous

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Preparation of numerous colorations or patterns in each small amount of stained fabrics or cloths _t has been desired for many years. There is also no mutual contact contamination between the cloths or fabrics coated with the dye composition according to the invention. Therefore, it is possible to continuously apply the coated cloth or fabric as it is, ie without any treatment to fix the dye, to store it, rolled and unwound, on rollers for any period of time. This practice is referred to as "wound up" in the dyeing industry, usually drying the cloth or fabric prior to winding (pre-drying) was essential for "winding up", while according to the present method the cloth or fabric immediately after being coated with the dye mass can be wound up and this drying step can be omitted, since the mass is not aqueous and easily solidifies.

As a result, there is a mass of dye that can be removed after it has been absorbed solidified, is used in the present process, is the normally required pre-drying unnecessary when coloring upholstery. As a result, there is a non-uniform color due to migration of the Dye, which inevitably occurs in the pre-drying stage, does not take place and a limitation of the types of Fabrics or cloths that are to be dyed are completely avoided.

If the dye composition continues as it is according to the invention is applied, is preformed into a solid material, it is far easier to handle in comparison to the usual geptu. cri ^ ii> ier liquid dyes and automatic sizing, feeding and the like.

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is far easier to achieve and gives substantial simplification of procedures and a reduction in the amount of Work to be carried out by hand.

The wipes or fabrics useful in the present process are those made from one or more synthetic materials Fibers such as polyester, polyamide, polyacrylonitrile, polyvinyl chloride and dyeable polyolefins and Like., Are constructed. The advantages of the present method over the conventional methods are particularly evident clearly when the present method is applied to cloths or fabrics made of polyester fibers.

The nonionic dyes which can be considered according to the invention include disperse dyes, Fat dyes, synthetic fiber developing dyes, oil-soluble dyes and fluorescent nonionic dyes. The anionic dyes and cationic dyes used are those which have free dye anions or form dye cations in water. Anionic dyes include, for example, acidic dyes, acidic mordant dyes, metal-containing acidic dyes, and the like, and cationic dyes include, for example the basic dyes.

™ The organic used in the present process Matrix consists of at least one aliphatic polyhydroxy compound or derivatives thereof, which are used in Normal temperature is solid and at temperatures not higher than a maximum of 80 ° C above the transition temperature of the second order of the synthetic fibers used melts. The matrix is still in water or low-boiling organic solvents such as aliphatic, lower halogenated hydrocarbons, for example Carbon tetrachloride, perchlorethylene and trichlorethylene, low aliphatic saturated alcohols with not

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more than 3 carbon atoms, e.g. methanol, ethanol and propanol, and acetone soluble and is at least partially compatible with the dye used in the molten state. Specific examples this includes the following materials: polyethylene glycol with a molecular weight of 1,000 to 10,000, mono- or diethers made from polyethylene glycol and alcohols, such as methanol, ethanol, propanol, butanol, octanol. Lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, Benzyl alcohol and the like, or phenols such as tert-butylphenol, octylphenol, nonylphenol, laurylphenol, octylβ-naphthol and the like., thioethers of polyethylene glycol and mercaptans such as lauryl mercaptan, esters of polyethylene glycol and aliphatic carboxylic acids such as lauric acid, stearic acid, palmitic acid and the like, adducts of Ethylene oxide on sorbitan esters, such as sorbitan monostearate, sorbitan distearate and the like. Adducts of ethylene oxide on aliphatic acid amides, such as lauric acid amide, stearic acid amide and the like, adducts of ethylene oxide to aliphatic amines, such as octylamine, laurylamine, stearylamine, Oleylamine, and the like, block copolymers of polyoxyethylene and polyoxypropylene (trade name Pluronic), ethylene diamine adducts with block copolymers of polyoxyethylene and polyoxypropylene (name Tetronic), graft copolymers of polyethylene glycol or block copolymers made of polyoxyethylene and polyoxypropylene with vinyl monomers such as methyl acrylate, methyl methacrylate and Vinyl acetate, aliphatic polyhydric alcohols such as sorbitol, arabitol, 2-methyl-2-propyl-1,3-propanediol and the like, esters of aliphatic, polyhydric alcohols, such as ethylene glycol monoctearate, Ethylene glycol distearate, diethylene glycol monopalmitate, ! Triglycerin monostearate, hexaglycerin monostearate, Sorbitan monostearate, sorbitan di-

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stearate, sorbitan tristearate, glycerine monostearate, glycerine distearate, Fentaerythritol monolaurate, pentaerythritol monostearate and the like

Of the above materials useful as the organic matrix, polyethylene glycol is most preferred.

Given that one of the essential Characteristics of the present method is based on the fact that the wound on the cloth or fabric Dyestuff solidifies easily and free of contact contamination with the formation of a coating layer, it goes without saying that the melting temperature of the organic matrix and the room temperature must not be too close together, otherwise the rate of solidification of the coating after application is decreased. On the other hand, the melting temperature should not be too high, otherwise the melting will occur becomes difficult and during the coating process the tendency of the dye to penetrate into the fibers, is favored.

The preferred range of the melting temperature of the organic matrix is 50 to 100 ° C. The greater the compatibility of the organic matrix with the dye used, the higher the dye concentration be in bulk, and a more uniform coating on the cloth or fabric can be cheaper Way to be obtained. Furthermore, the production of the homogeneous dye mass is greatly facilitated. Because of With these advantages, it is recommended to use an organic matrix with a high level of compatibility with the dye apply if possible. If a highly compatible dye and a highly compatible organic matrix are used in the present process, the

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Mass of the dye in a concentration up to 30% by weight, based on the total weight of the mass, included under high stability. Concentrations higher than these should be avoided, as the Dispersion stability is deteriorated and the uniform Application of the mass becomes difficult.

According to the invention, the dye mass can be obtained by homogeneously mixing the dye with the organic matrix-n · M ;; 1 η also possible to add other constituents which support uniform deep color coloring in the case of dex, if desired, in addition to the two essential constituents that are understood. Antioxidants are listed as an example of such additives. Occasionally, depending on the dex *-specific combination of organic matrix and dye, discoloration of the dye can occur during heating to fix the dye and C ¹ J ese discoloration is probably caused by oxidation by air. This discoloration can be effectively prevented by adding an antioxidant. As useful antioxidants, those compatible with the organic matrix are preferred. Suitable antioxidants are, for example, 2,2'-methylene-bis- (4-methyl-6-tert-butylphenol), 4,4'-Ihio-bis- (6-tert-butyl-3-methylphenol), 1, 1'-bis (4-hydroxyphenyl) cyclohexane, mercaptobenzimidazole, the zinc salt of mercaptobenzimidazole, tri ~ (nonylphenyl) phosphite and phenothiazine and the like. These antioxidants are preferably within the range of 0.1 to 5% based on the Total weight of the mass, added. As a further type of additives those are listed which are used in dispersion and dissolution cc. , ... r- support Joffes in the molten organic matrix, for example

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Ethylene carbonate, glycerine, diethylene glycol, thiodiethylene glycol, Ethanolamine, diethanolamine, dimethylformamide, dimethylsulfamide, dimethyl acetamide, sorbitan monooleate, Polyoxyethylene sorbitan monolaurate, polyoxyethylene lauryl ether and the like

Furthermore, aids for dye fixation, which support the fixation of the dye, such as p-phenylphenol, o-phenylphenol, methylnaphthalene and Like., are used, the dye-fixing promo normally used in the dyeing of polyesters in aqueous media goals are. If necessary, these can be added in small amounts.

If anionic dyes are used, the uniformity of the application and the Color improves when water or an organic acid such as formic acid or acetic acid, in small amounts, (at most 5% by weight or less) to the dye mass can be added. Of course, the amounts of these additives must be within such ranges that the property of the organic matrix of being solid at room temperature is not deteriorated.

If anionic dyes are used, the cloth or fabric treated in the dye-fixing step can be treated with an acidic aqueous solution be guided. This can deepen the color of the cloth or fabric. This stage is as Known as "acid shock" in dye induction.

Commercially available dyes occasionally contain additives that are present in the molten organic matrix are insoluble and the interference with the uniform dispersion of the mass during manufacture the molten mass of dye and organic matrix, for example occurrence of color

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fabric licks and the like. For a practical implementation of the Invention, it is therefore favorable that such additives of the commercial dyes that are in the organic Medium are insoluble, must be removed beforehand or are not included.

As a measure for applying the molten dye mass to the cloth or fabric, it is not impossible to immerse the cloth or fabric in a bath of this mass. However, roller application is far less expensive to achieve the unique advantages of the present process. One reason for this is that roller mounting is favorable to prevent the dye from penetrating the fibers at the time of coating, as already stated, and another advantage is that during roller mounting the dye, which contains the dye in high concentration, is applied to the Cloth or fabric can be painted in a small amount and uniformly, as a result of which the utilization of the dye is effectively improved. Of the roller mounting method of the various systems, that using a gravure roller capable of uniform coating at elevated temperatures is most suitable for the present method. In the case of roller mounting, the favorable amount of the dye mass is in the range from 2 to 50 % based on the weight of the cloth or fabric. In the application process for the dye mass on the cloth or fabric, a previous moisture treatment of the cloth or fabric, for example spraying a liquid compatible with the organic matrix onto the cloth or fabric, assists in uniform application in certain cases. Examples of such liquids are water, per-

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-ie- 2Ö47872

chlorethylene, trichlorethylene or methanol, acetone and Mixtures of these listed.

The coated cloth or fabric or the coated one Fabric is then subjected to a heat treatment to fix the dye. If necessary, the overdone The fabric or the coated cloth is cooled in addition to accelerating the solidification of the coating layer or to facilitate the uniform application of the dye to the fabric or cloth prior to the last heat treatment to be preheated.

The heated fabric, on which the dye is fixed in this way, is finally washed to remove the Remove coating. The preferred detergent is water. The laundry is often effective under Adding an alkaline substance such as sodium carbonate, caustic soda, sodium bicarbonate, reducing agents such as sodium hydrosulfite and dispersants and the like to the water. In addition, a wash can be carried out with Water by washing with a low boiling point organic solvent such as perchlorethylene, Trichlorethylene, methanol, acetone and the like. Replaced will.

The invention is explained below using the exemplary embodiments. In the examples, the numerical value in brackets means, for example, polyoxyethylene (20) stearate _/ the average addition to moles of ethylene oxide.

example 1

To 445 parts of polyethylene glycol with a medium Molecular weight of 4000 and a melting range of 53 to 56 ° G, melted by heating to 70 ° C

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became 40 parts of a purified disperse dye the structural formula

OH

and 15 parts of mercaptobenzimidazole as an antioxidant was added and the whole mixture was allowed to dissolve in a ball mill heated to 70 ° C for 5 hours and dispersing mixed. A melt of homogeneous dye mass was thus obtained.

The apparatus used for the coating had two coating units that were in vertical relation Were arranged to each other and other auxiliary devices, such as guide rods for continuous Guiding the fabric to the cover units and an expanding device for stretching the fabric or tissue in the direction of its width to help smoothly feed the fabric to the rollers. Also existed a coating unit consisting of a gravure roller and a associated back roller, a knife coating device and a shower bath. The two coating units were arranged so that each was the corresponding only one Surface of the fed substance could cover. The gravure rollers and coating baths were done at 70 ° C Circulation maintained by warm water. The above enamel was poured into the coating baths and

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borrowed on both sides of the fabric of polyethylene terephthalate threads applied, which was fed at a speed of 3 m / min, and immediately thereafter was wound up. The amount of the coating was 20% based on the weight of the fabric. The so overdone Tissue was undergoing dye-fixing treatment subjected to various conditions as shown in Table I to allow the dye to penetrate into the coating layer bring about into the fibers, and with an aqueous 2 g / l sodium hydrosulfite, caustic soda and Polyoxyethylene (20) stearylamine containing solution washed at 80 ° C for 20 minutes. After the fabric has dried a uniform, pink colored EL coloring was obtained. The depth of the stained color was determined by the Light value (L value) expressed, measured by the color difference meter, the results are given in Table I below.

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Table I.

Temp. Time (° c5 (min.)

Dye fixation by dry heating in open

System of paraffin waxing through superheated steam in an open system

Dye! Fixation by puff heating in airtight atmosphere

0.5

1.5

1.5

30th

10

20th

30th

130 150 160

- ^ 170

et »190 ^ 200 Il 210 220

4-9.8 47.6

43.1

55.3 51.8 47.7

45.3 44.2

44.2

52.3 49.2

46.1 44.5

45.8 48.1

44.1 51.2 43.0 -

46.7 -

50.1

52.3 54.6

43.6 44.9 47.3 $ 4, 2,444.2

- 53.4

- 49.5 50.2 46.5

46.1 44.5 44.7 42.5 43.5 43.2

43.2 43.4 43.0 43.7

50.6 47.4 45.5 43.5 43.9 43.3 44.5

Puss note: The L value of the untreated fabric was 75.2.

46.4 43.8 43.8 44.9

46.0 45.8 45.5

46.7 45.6 44.5

During the above dyeing process, if the coated fabric before the dye-fixing treatment was washed with acetone at room temperature for a short time, the coating layer was washed away completely, and the fabric had an L-vert of 73 »0, which is a degree of whiteness practically equivalent to that of the untreated original fabric indicates. As a result, there was practically no dye adsorption at the time of coating Has. There was no contact dirt at all on the back roller, the guide roller and the like during the continuous coating process on both sides of the fabric was observed, and there was no uneven coloration due to transition of the coating layer after contact between the fabrics during the Winding up.

Example 2

Under the dyeing conditions of Example 1, the amount of dye (the same dye used in Example 1 ) applied to the fabric (owf%) was varied in each experiment as shown in Table II below, and the mercatptobenzimidazole became replaced by 1%, based on the total weight of the mass, of phenothiazine. Also, the treated fabric was replaced with a fabric woven from heavily twisted polyethylene terephthalate threads, and the conditions for fixing the dye were changed as shown in Table II. All other conditions are identical to those of Example 1, the dyed fabrics being obtained in various shades of pink. The LV / erte of the tissue according to the depth of the dyed color,

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were measured, the results being shown in Table II are.

To compare the present method with conventional upholstery or pad dyeing, the same fabric, used above is dyed under the following conditions: the dye used in Example 1 was dispersed in water to which sodium alginate was added at a concentration of 1 g / l to prepare an aqueous dye solution. In this procedure, the dye concentration in the solution adjusted so that the dye uptake (%, related on the weight of the tissue) of the tissue after immersion in the solution and squeezing off with a mangle with a fixed squeeze ratio giving the various values listed in Table II. the Dye absorption (%, based on the weight of the fabric, is called "owf"). The tissues were immersed in the aqueous solutions thus prepared, from Squeezed off excess liquid, air-dried and the dye under identical conditions fixed with those used in Example 2. The L values obtained for the dyed fabric of the control experiments are listed in Table II below.

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X Time the atmosphere Table II Inventive
p; em. procedure • OWf (%) 59.9 4th Temp.
(° c5 (Min.) the comparison 1 2 45.0 57.7 Dye-fi
xi erunß Inventive
p; em. procedure 44 58.6 44.9 150 X 50 Dry comparison 45 , 7 41.8 54.7 warmth Invention 8
pem. process 42 ,1 57.9 42.5 Open
System,
damp
warmth comparison 44 , 9 41.4 55.9 Dry Inventive
Kem.Procedure 45 , 0 57.5 40.6 160 X 50 warmth comparison 42 ,8th 59.8 52.5 Open Inventive
according to the procedure 41 57.4 59.1 System,
damp
warmth comparison 42 ,1 58.7 51.7 Dry- Inventive
pem. process 41 , 0 57.0 56.6 200 X 1 warmth comparison 42 ,1 58.0 50.7 Open 42 , 5 52.1 System,
damp
warmth 42 , 6

After comparing the obtained L values of the inventive The procedure and the comparisons show that under equal owf (%) - verten the tissues tend to to be colored deeper in the process according to the invention than in the comparison tests and the tendency is expressed under high owf (%) values. This shows convincing that the present method is advantageous for dyeing fabrics in deep shades of color.

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Example 5

In this example, the coating step of the present process was influenced by temperature in the case of the coating time and its duration on the penetration of the dye component into the molten one Dye mass in the threads using different Combinations of fabrics and dyes studied. The operating conditions were as follows:

a) 284 parts of polyethylene glycol with an average molecular weight of 5500 were melted at 60.degree and 8 parts of a purified disperse dye of structural formula

OH

and 8 parts of mercaptobenzimidazole were added and the mixture was ground in a ball mill at 60 ° C. for 2 hours. Fabrics woven from polyethylene terephthalate threads were then put into the mass at the temperature and time listed in Table IHa, removed and immediately thrown into cold water to cool. Then the fabrics were first washed with 50 ° 0 warm water and then with a v / aeous solution, ie 2 g / l caustic soda, Na-

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triumhydrosulfite and polyoxyethylene (20) stearylamine contained, washed at 80 ° G for 20 minutes. After the subsequent drying, the coated Fabrics or cloths the brightness value (L value) is measured as the norm for evaluating the depth of the tinted color, the results are shown in Table IHa.

b) The measures specified under a) were repeated with the exception of the following changes: Polyoxyethylene (5) -stearic acid amide was used as the organic matrix, 8 parts of unpurified, commercially available Acid dye of the structural formula

SO _{x well}

was used as dye, fabric made from NyIon-6 threads was used as the material to be colored, and washing the coated fabric was in an aqueous, each 2 g / l sodium carbonate and polyoxyethylene (15) -Iau.ryläther containing solution carried out at 60 ° C for 20 minutes. The L values of the fabrics so treated are reproduced in Table IUb.

c) The measures listed under a) above were again with the exception of the following changes repeated: 8 parts of unpurified, commercially available, cationic dye of the structural formula were used as the dye

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used; Cloths woven from acrylic staple fibers were used, and the coated cloth washing process took place in the same way as indicated above under b). The L values of the treated tissues are in Listed in Table IIIc.

Time Tem (sec.)

60

Table IHa

80 100 120 140 160 180 200

73.8 74.5 74.2 70.9 62.5 48.4 39.7

74.9 74.0 74.2 67.7 53.7 41.3 31.4 74.8 75.0 73.5 65.8 55.9 59.1 28.7 75.0 74.4 75.0 61 .6 46.1 55.7 26.4 74.2 75.8 72.7 33.7 41.7 28.4 23.8

Footnote: The L-V.ert of the untreated fabric was 74.3

1 73.5 LfN 73.5 10 75.9 30th 74.2 60 75.5

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Time temp, (Sec.)

60 80

Table IIIb

100 120 140 160 180 200

5 10 50 60

68.8 68.5 67.2 67.6

67.0 68.8 65.4 65.7

67.4 67.4 67.8 64.1

67.2 68.1 68.6 62.0

68.8 66.5 66.7 60.7

61.8 55.8 46.8 59.4 57.4 52.5 42.5 57.5 55.7 45.5 57.5 55.7 52.2 56.4 50.4 51.6 45.2 52.7 25.5 29.5

Footnote: The L value of the untreated fabric was 68.5

Table III c

Time
(Sec. 60 80 100 120 140 160 180 200 60.2 62.7 62.6 61.7 65.6 67.0 57.8 65.7 62.2 62.2 62.8 61.5 58.7 60.6 57.2 59.5 65.4 60.4 61.7 62.1 59.5 65.1 56.6 52.8 61.7 61.7 65.2 62.4 64.2 58.1 55.2 51.8 60.6 62.5 61.7 60.1 64.8 55.7 45.1 45.9 Temp.
.) (° c5 1 5 10 50 60

Footnote: The L-Y; ert of the untreated fabric was 62.7

The color shade of the treated polyethylene terephthalate cloth according to a) was violet, but under the conditions the L values were not less than 55, e.g. B. 60 seconds or less at the treatment temperature of 140 ° C and not longer than 1 second at 160 ° C, no coloration or very little, as it were Color that appears soiling. So one could say that there was practically no staining. The after

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b) nylon 6 fabrics obtained looked blue, but yielded under the conditions L values of not less than 55, e.g. B. no longer than 10 seconds at the treatment temperature of 140 ° C and not longer than 1 second at 160 ° C, with practically no coloration in the sense of explanation above was made.

The acrylic cloth treated according to c) was given an orange color. However, under the conditions, the give an L-vert of not less than 55, e.g. B. a treatment temperature no longer than 60 seconds from 160 ° C, not longer than 50 seconds at 180 ° C and practically no coloration for no longer than 5 seconds at 200 ° C.

Then the influence of the coating conditions on the penetration of the dye in the threads also became examined. When performing the engraving whale coating process according to example 1, only one coating unit was used. The coating bath and the engraving roller were at 70 ° C, 90 ° C, 110 ° C, 140 ° C and 160 ° C in every experiment kept by circulating hot oil. The same dye mass used in a) was also used on the same fabric as in a), by gravure rollers at one feed speed of 0.6 m / min. The contact time of the fabric with the heated gravure roller was about 0.5 seconds. The coated fabric was washed and dried in the same manner as in a). All products showed L values of not less than 55 and were practically uncolored.

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Example 4

The coating procedure of Example 1 was repeated except that a purified disperse dye of the structural formula

-N (C ₂ H ₄ OH) ₂

was used as the dye, and the organic matrix was varied in each experiment as indicated in Table VI in order to examine the contact soiling of the applied layer at the time of coating; The following measurement was carried out as a means of numerically expressing the degree of soiling tendency. The coating layer applied to the fabric was subjected to a rub test with the untreated white raw material of the same brand with a predetermined number of rubs, and the degree of soiling on the untreated fabric caused by the coating layer was turned gray with the naked eye -Scale with five ratings. (On the gray scale, 1 equals black and 5 equals white, and the intermediate values 2 to 4 correspond to different shades of gray.) It was confirmed that the tendency towards soiling with respect to the device and between the fabrics corresponds well with the result of the above * Has gray scale rating.

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- 51 -

In this example, not only were the organic matrices that are "solid at normal temperature, but also used as comparisons those that are normally liquid. The results are given in Table IV, in which the variation in the measured values caused by changing the number of friction processes is also reproduced. The ambient temperature during the measurement was 26 ° C.

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Table IV

Organic matrix

Condition at 25 ° C

Polyethylene glycol (average molecular weight 4000)

Polyoxy

ethylene (30) stearate

Polyoxyethylene (30) stearyl ether

Polyoxyethylene (100) lauryl ether

Polyethylene glycol (medium molecular weight

Polyoxy

ethylene- (5) -octylphenol

Polyoxy

ethylene (5) lauryl ether

fixed

Number of friction priorities , -Q 20 30 40

fluid

4-53-43 3

2-3

3 3

3 3

3 3

1 1

1 1

2-3 2 11

As is clear from Table IV, the organic matrices, which are solid at normal temperature, show as indicated in the method according to the invention, very little contact contamination in comparison with those which are liquid at normal temperature.

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Example 5

Example 1 was used except for the following changes repeated: A purified disperse dye of the structural formula was used as the dye

-N-N

used the polyethylene glycol with a medium Molecular weight of 4000 was replaced by the organic matrices given in Table V, the addition of Mercaptobenzimidazole was omitted, the temperatures during melting and mixing of the dye with the organic matrix and during the coating time, as indicated in Table V, heating for dye fixation was by dry heat at 200 ° C for 1 minute. The L-values according to the The lightness of the dyed color of the fabric are listed in Table V below.

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Organic matrix

Polyethylene glycol (medium molecular weight 2000)

Polyethylene glycol (average molecular weight 6000)

Polyethylene glycol (average molecular weight 10,000)

Polyoxyethylene (58) octyl ether

Polyoxyethylene (30) stearyl ether

Polyoxyethylene (50) oleyl ether

Polyoxyethylene (100) nonylphenol

Polyoxyethylene (50) lauryl phenol

Polyoxyethylene (50) octyl-ß-naphthol

Polyoxyethylene (50) lauryl thioether

Polyethylene Glycol (Medium Molecular weight 2200) methylnonylphenyl diether

Polyethylene glycol (average molecular weight 2200) benzylnonylphenyl diether

Tabel V LV / ert des
colored
$ uch Melting point
the matrix
( ⁰ C) Dye-
mix and
Coating
temperature
( ⁰ C) 44.0 47-53 70 44.5 58-62 80 44.2 65-68 90 43.9 47-54 -. 70 42.0 46-49 65 41.0 49-54 70 44.1 57-59 80 39.4 42 - 53 70 42.3 48-52 70 43.0 45 - 49 65 44.8 48-50 65

44-50

43.7

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- 35 -

Organic matrix Tabel V dye L value of the • 43.9 • ( Port setting) mix and colored Melting point Coating Cloth 41.2 the matrix temperature Polyoxyethylene (30) ( ⁰ C) 41.5 stearate 65 Polyoxyethylene (1O) - 39.6 distearate 40 ■ 70. Ethylene glycol mono- stearate 46 ■ 80 41.1 Diethylene glycol monopalmitate 57 ■ - 65 45.2 Polyoxyethylene (6) sorbitan mono- 44 - 45.6 stearate 70 Polyoxyethylene (54) 44.9 lauric acid amide 47 - -65 Polyoxyethylene (50) ~ 44.4 octylamine 41 - 80 Polyoxyethylene (105) stearylamine 47 - 70 41.9 Polyoxyethylene (20) oleylamine 50 - 70 Polyoxyethylene (159) polyoxypropylene (5i) - 48 - ethylenediamine 70 (Trade name Tetronic) 49 - -45 - 52 - 59 - 47 - 55 - 48 ■ 56 • 54 ■ 52 ■ 51

Polyoxyethylene (100) polyoxypropylene (21) block copolymer (Trade name Pluronic)

48 - 51

70

40.5

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Table V

(Continuation) dye L value of the Organic matrix Melting point mix and colored the matrix Coating Cloth ( ⁰ O) temperature
K) 80 Polyethylene glycol
(middle molecule 45.0 weight 5700) V? - 58 Methyl acrylate Ebopf copolymers Polyethylene glycol 70 (middle molecule 42.1 large weight 3700) 51-52 vinyl acetate graft 115 Copolymer 40.7 Sorbitol 95-98 80 2-methyl-2-propyl 52.2 1,5-propanediol 52 - 58 70 ßorbitan mono- 80 38.3 stearate 46-50 95 58.2 Sorbitan tristearate 57-61 40.4 GIyc erin-mono st earat 76-77 70 Tri glycerine mono- 42.1 etearate 46-55 80 Pentaerythritol mono- 41 ·, 3 ßearate 54-62

In such experiments, where the coated fabrics are treated with hot acetone before the dye-fixing treatment washed for a short time, the coating layers became completely removed, and the remaining cloths had a degree of whiteness very similar to that of not coated original cloth. From this it can be seen that the dye penetration was below that given in Table V. Coating conditions can be completely ignored.

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Example 6

A knitted fabric was produced under the conditions given in Example 1 with the exception of the following changes dyed: Textured yarns made from polyethylene terephthalate threads were used as the starting material used, a gravure roller of greater coating capacity was used, by 20% based on weight the knitted fabric to apply to dye mass. The heating for dye fixation was done by dry heat at 160 ° C for 20 minutes and the washing process after the dye fixation was carried out by immersion in Perchlorethylene. It was thus an evenly through the inside of the fabric received knitted fabrics dyed pink, which had a good grip. The L value of the product was 44.2. If the knitted fabric, after covering, but before the dye-fixing treatment with hot Acetone was washed, the coating layer was almost completely removed and the remaining goods had an L value of 73.1. Incidentally, the untreated starting material had an L value of 74.8.

On the other hand, when the gravure rollers and coating baths were heated to 185 to 190 ° C by circulating hot oil, the feeding speed of the cloth at the coating time was drastically reduced and the contact space of the gravure rollers with the knitted fabric was sufficiently lengthened in the coating time set their contact time to about 5 seconds; the dye component in the molten dye mass penetrated the fabric considerably during the coating process, and the knitted fabric was dyed. That is, if the goods with perchlorethylene in the same way as in the above

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described attempt immediately after completion of the When the coating was washed, the knitted fabric turned pink colored and had an L-Vert of 48.2. However, the knitted fabric in the comparative experiment showed what is known as surface dye adsorption, d. that is, its surface was colored deep rose and the inside of the fibers became colored in a medium to light shade of Eosa. Therefore the product had a much poorer appearance than the product obtained by the process of the invention. Furthermore, since the coating baths were kept at high temperatures in the comparison, the dye in the coating baths thermally decomposed after a certain time, and consequently the appearance of stains, e.g. B. polka dots, observed on the dyed good. The handle of the comparison product was flat and rough, and it was found that the pleasant feel of the starting knitted fabric made of textured yarn had been significantly impaired.

Example 7

To 480 parts of sorbitan monostearate, which at 70 ° C was melted, there were 3 parts of a purified disperse dye represented by the following structural formula

and 30 parts of another disperse dye of the structure formula

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(Trade product, unpurified) was added, and the mixture was ground for 4 hours in a ball mill heated to 70 ° C. to form a homogeneous melt of the dye mass. The mass was placed in a container and kept at 70 ° C to make a padding bath. Thick, woven cloth made of processed yarns made from polyethyleneterephthalate threads was continuously immersed in the melt and excess melt that had been taken up was squeezed off with a press heated to 70 ° C. in order to prevent the melt from solidifying on the cloth. The amount of coating in this process was 58% by weight. During the Verfa hr ens the dye component showed in the overcoat layer no penetration into the fibers. The coated cloth was heat-treated with a dry heat of 180 ° C for 2 minutes and washed under the same conditions as described in Example 1. A uniformly dyed orange-colored cloth was thus obtained. The hue of the cloth was consistent throughout the dyeing process and no change was observed with the lapse of time. The product also had a good handle.

For comparison, the pad bath was heated to 200 ° C and the coating was carried out under the condition that the Dye was immersed therein for 30 seconds. In In this attempt, the dye component of the molten mass penetrated the fibers during the coating process,

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COPY

2Ü47872

and the cloth leaving the pad bath was dyed the same orange after washing, if this comparative method was carried out continuously, showed the color tint on the product with the passage of time, d. H. in the earlier state of coloring, the hue was more reddish and the reddish shade became with expiration reduced in time. This phenomenon was due to the difference in the speed of staining between the two the dyes used. Also stepped there. the pad bath at high temperatures for a long time Period of time was held in the comparative experiment, decomposition of the dyes, causing flake formation, e.g. B. Dots. Furthermore, the comparative product had a rough hand, which resulted in a deterioration in the Handle made of textured fabric! Indicates yarn.

Example 8

Using the fabrics made from different threads as shown in Table VI, a Coloring under the conditions given in Example 1 with made the following changes; The dyes shown in Table VI were used to dye the respective Substances used, the use of harcaptobenzimidazole was omitted, the dye was fixed under the heating conditions given in Table VI and the dyed cloths were washed with 60 C warm water, the 1 g / 1 non-ionic, surface-active lütte! (Polyoxyethylene (15) lauryl ether) contained, washed. The products were uniformly colored, the shades varying from light to dark. The L-V.erte of the products are also shown in Table VI.

BAO ORIGINAL

1 09821/1740

~

From £ jn- Strukfcuri'oraul

tiie f, ι nc h Uli d & £ i .1 ' ¹ U rbs to ffj fibers -hiΓ ■
built fabric

ffylon 6

Polyacryl "
nifcril

0 NHC H 6 1

6th

iiandelsprodukfc (uncleaned)

^ N-C-CiJ = CH-C

CH,

'Cl

Commercial product (unpurified)

Coloring
conc j.
(owf%) conditions
d. dye
ZI fciii es- I ¹ era ρ.
pbUro (° 0) 160 100 L-
Uo rb
Time
(There) 34 , 20 1.5 Open minded
Steam f 180 160 10 37 , 38 i> 200 180 5 41 , 99 !1 go-
CLO £ 5-
sen 100
steam 190 1 36: , 51 tr 10 35, , 65 open minded
steam 30th 54, »60 2, "l It 30th 53 , 55 f! 3 53 .76 1

Polyvinylilide

Purified product 0.8

under 100 30th 24 , 20 pressure stejbi en- Steam f 'JProk- know- 140 1 25th , 00 warmth ft 120 5 25th , 81

8AO ORiGtNAL

f 0 9 B 1 \ / M 4 Q

In this example fry koine penetrationu.ru ;; do; s Farbcto ff «Ln dio i'fissern while det; Overriding. Verf'difonü on, or, if iibiuhaupt; to be perceived, - appeared al: 5 minor Pollution. Ki; fcrab .practical .not essential in any attempt Coloring on. -

Example 1 was made except for the following changes. repeatedly: ün wurdo a commercially available acidic .Parbfitoff (urigei'Dinigt) of the folgeruien übrukturformel

? ^H 3 SUN, YES

-CH-

OS *

used, thin, woven cloth made of Hylon ~ 6-thread v. was used, one of the two engraving rollers was switched off to cover only one surface, immediately before the cloth was continuously fed to the Ciravu.r-Valze v _'0%'% / urde, water, the amount / uniformly "sprayed .uf the cloth (the botruj, the water spray

8AD ORIGINAL

9 8 2 1/1 74 0

based on the cloth threaded CHT), and the wasehvorgang after the dye-fixing was carried egg into equally * l.'eise as tu in Example This experiment was carried out is spraying Wasiitr, coating, heating to dye Fixi augmentation (dry heat 180 ° C χ 2 minutes) and YJaschen continuously. The product obtained on this V / an was colored clear blue and was particularly excellent with regard to the uniformity of the color. The advantage of applying water to the surface before coating was brought about by the uniform distribution of the dye tick over the entire surface of the cloth the color between the two surfaces.

Example 10

To 320 parts of polyoxyethylene- (5) -stet.rinsäureamid, melted at 70 ° C, 60 parts of the acidic dye used in Example 9 were added and then by grinding in a ball mill heated to 70 ° C during 4 hours dissolved and dicpergicrt. The hat was pulled up on a cloth woven from nylon 6 threads in the same manner as in Example 1. The coated fabric was then treated with Itempf at 190 ° C for Ί 1 minute in the open system and then subjected to acid treatment at 9 <- ° C for 1 minute in an aqueous solution containing 10 g / l of 85% formic acid. Furthermore, the Tucli was in an aqueous bath containing 2 g / l sodium carbonate and 2 g / l of a non-ionic, surface & active "middle" - contained, at 60 ° C for 20 minutes: eheii. I): by vurde d.-. i "

BAO ORlGiNAl 109821/1740

Cloth clean and deeply dyed. The brightness value of the colored color indicated by the L value 28.20. Palis the acid treatment was omitted in the above experiment for comparison, the L value was of the dyed cloth 33 »82. This result proves that the above acid treatment is effective for achieving deeply colored cloths.

Example 11

To 450 parts of a polyethylene glycol with a The average molecular weight of JOOO became 5> 0 parts of a commercially available acidic dye (unpurified) of the following structural formula

and 10 parts of water were added and in the same manner as in Example 1 wed. The dye composition retained the property of being solid under normal temperature upon addition of water and the homogeneity of the melt was improved. The mass was at 70 ° C only on one Surface of a tufted carpet made of textured nylon 6-thread yarns using only an engraving coating Initially the arrangement used in Example 1 is drawn up. The engraving roller used was that with a larger coating capacity. The condition of the carpet after it was pulled up was such that it set

1 0 9 8 2 1 / -J 7 A 0

Dye mass on the top of the fleece of the carpet adhered and showed no penetration down to the base of the fleece. The covered carpet became drier under Heat at 100 ° C for 10 minutes to preheat. The coating layer was formed uniformly over the height of the nonwoven fabric. At this stage however, the dye in the coating layer did not show any substantial penetration into the interior of the fibers. Of the Carpet was then placed under dry heat of 180 C during Steamed Ί minute to fix the dye and washed with heated perchlorethylene. This became obtain a uniformly deep blue color down to the root of the fleece.

In a comparative experiment, the preheating left before the dye fixation treatment, uncolored parts were observed at the root of the fleece. This proves that the pre-heating takes place before the dye fixation (Heated under conditions that do not fix the dye) uniform penetration of the dye of the coating layer in the intra-structure of the cloth or fabric and a gives excellent uniform coloring.

Example 12

The procedure of Example 1 was repeated, but a purified fatty dye of the following formula

109 8 31/1740

«■■ - * '

used as a dye, the mercaptobenzimidazole by, replaced another antioxidant given in Table VII and the fixation of the dye by dry heat treatment as indicated in the same table. The discoloration due to the decomposition the dye was assessed with the naked eye. For comparison, the "results of a comparative experiment indicated, the application of the antioxidant has been omitted.

10 9 8 21/17 4 0

Tabel VII 19O ° C χ
1.5 min. 210
0.5 ^w C χ
Min. Antioxidants
and amount added
(Parts) 5 VJl Mercaptobenz
imidazole 5 Conditions of the dye
Fi. xi eration handling un r Sodium sulfide 2.5 1700c χ
30 min. 5 5 Phenothiazine 5 5 - 5th 5 2,2'-methylene-
bis- (4-methyl-6-
tert-butyl
phenol) 15 5 4-5

comparison

2-3

In the table above, ratings ranging from 1 to 5 cLen indicate degrees of discoloration
by relative graduation, that absolutely no discoloration (Sample cloth fixed with the dye in a hermetically sealed container at I3O ⁰ C for 30 minutes with saturated steam, the dyeing conditions no discoloration resulted) was rated 5 and a completely discolored product was rated 1 ;
the intermediate stages were at three equal intervals according to the assessment with the naked eye
divided. From the above results, it can be clearly seen the effectiveness of the addition of the antioxidant.

109821 /, 17AQ

■ '■ * ■■ \ ; '■ ■ y B ν

Μί

Example 15

To 445 parts of that used in Example 1, melted organic matrix was 25 parts of a purified fluorescent dye of the following structural formula

- CH

as a dye and 20 parts of polyoxyethylene (4) sorbitan monolaurate added as an additive and the fixation of the dye by dry heat of 200 ° C during 1 minute effected, while the other dyeing conditions were identical to those in Example 1. This became a fluorescent, white cloth with excellent uniformity.

Example 14

According to Example 1, the formed and melted Dye pour into a cylindrical iron container poured and left to cool to room temperature. This made a solid, cylindrical mass of dye obtained with a diameter of 5 cm and a length of 15 cm. To produce a similar, solid body, the purified emulsion paint used in Example 5 was

10 9 8 2 1/17

fabric finely broken, thoroughly covered with polyethylene glycol flakes with an average molecular weight of 4000 in a drum "at room temperature and mixed in poured the above iron container. After the bottom pressure was reduced, the mixture became under a Pressure of 140 kg / cm applied with a piston from below was press-molded. This became another solid mass of the same shape is made. The melt obtained according to Example 1 was also used the dye mass into flakes with a flaking machine shaped and continued into grains of 3 now in diameter shaped in a granulating machine.

Excellent staining results were obtained with these compositions too.

As discussed above, the dye composition used in the present process can be converted into molded products the different shapes can be processed according to different methods, since they are at normal temperature is firm.

Claims (1)

Claims 1. A method for dyeing fabrics or cloths made of synthetic fibers, characterized in that a dye composition consisting of at least one nonionic, anionic or cationic dye with Affinity for the synthetic fibers and an organic matrix of at least one aliphatic polyhydroxy compound oil derivatives thereof that are produced at normal temperature are solid and at! temperatures not higher than 80 ° C above the transition temperature of the second order of the Fibers melt, are soluble in water or low-boiling organic solvents and are at least partially soluble are compatible with the dye in the molten state, is built up, is produced, the Hasse heated with melting the same, the molten mass on the cloth or fabric under such conditions, that practically no penetration of the dye into the synthetic fibers takes place, is drawn up, the covered cloth or cloth under sol ^ · conditions that a penetration of the dye constituent.es the coating layer takes place in the fibers, is heat treated and then the cloth or the © toff with water or a low-boiling organic Solvent and oil removal; the overlay layer treated 2, Yerfahiren # aö $ i Angprueii 1, characterized Let it be applied as synthetic questionable polyes; ftaßft Äjgtifir ^ i 1 ö # p |? 2 _f 4atteeh gekena- 0t missed% $ fm 4. The method according to claim 1 or 2, characterized in that the organic matrix is at least one Polyethylene glycol derivative of zither and thioether of Polyäthyl eiiglykol and adducts of ethylene oxide with aliphatic Carboxamides, aliphatic amines or Polypropylene glycol is applied. 5. Method according to claim 1 or 2, thereby germinated indicates that the organic matrix is at least one ester of a polyhydric alcohol, such as ethylene glycol, Diethylene glycol, triethylene glycol, polyethylene glycol, Glycerin, pentaerythritol or gorbitan is used. 6. The method according to claim 1 to 5i, characterized in that that the coating is applied by varnish application \ tfird. 7. The method according to claim 6, characterized in that that an engraving pen is used to draw a pen will. 8.> The method according to claim 6, characterized in that that a dye mass with a dye content of not more than 30%, based on the total weight the mass, is used. 9. The method according to claim 1 to 8, characterized in that that a weight of the absorbed dye mass of 2 to 50% j based on the total weight of the cloth or fabric. 10. The method according to claim Λ to 9i, characterized in that an antioxidant is added to the dye mass in an amount of 0.1 to 5%, based on the total weight of the Ilasse. 11. The method according to claim 1 to 10, characterized in that that the dye mass, built up from dye and organic material, becomes a feston material is preformed. , 109821 / 17A0 er, r \ r £ eeο τ BATH