DE10226846B4 - Use of a component system for dyeing denim fabrics - Google Patents

Abstract

use a component system comprising a dye component and a second, a dye surplus removing component, wherein the dye component 85 to 99.5% by weight of a salt, 0.2 to 14.5 % By weight of a dedusting agent and 0.2 to 8% by weight of a dyestuff comprises and wherein the second component comprises 80 to 99% by weight of a salt and 0.2 to 15% by weight of a polyvinyl polymer, wherein the weight percent in each case based on the total amount of the respective components, and where the ratio the amount added (in% by weight) of the dye to that of Polyvinyl polymers in a range of 1:10 to 5: 1, for To dye of jeans fabrics.

Description

The The present invention relates to the use of a component system to dye denim fabrics containing a dye component and a second, a dye-excess removing component includes.

Denim fabrics have the peculiarity that for denim fabric colored warp used, whereas the weft threads used not colored Cotton exist. This peculiarity of denim fabric causes Problems with a subsequent coloring of jeans fabrics. Because of the known products for re-dyeing / dyeing Jeans fabrics will after the dyeing process a supreme achieved unsatisfactory result, since by the known colorants Warp and weft threads in denim fabrics to be dyed evenly so that in the post-dyed or repainted Jeans fabric the actual jeans character is lost. The result is a simple and cheap looking product.

DE 197 23 661 A1 discloses a process for treating dyed cellulosic material by fixing substantive dyes characterized by treating the fibrous material before, during or after dyeing with a liquor containing a homo- or copolymer obtained by polymerizing N-vinylformamide or N Vinylacetamide and optionally other copolymerizable monomers mentioned in the claims is obtainable. As a result, the resulting dyeings and prints would have improved wet fastness properties.

EP 0 812 949 A2 discloses a process for treating dyed cellulosic material by fixing reactive dyes or substantive dyes, wherein the fibrous material is treated before, during or after dyeing with a liquor comprising specific homo- or copolymers, thereby also achieving improved wet fastness.

WHERE 01/53600 A1 finally discloses a antifreeze mixture, which should protect especially denim fabrics against color loss. This color protection mixture includes specially formed polymers or copolymers comprising linear, cyclic or mixtures of such subunits. hereby Especially with denim fabrics, bleaching and color loss reduced by abrasion or mechanical stress.

Around one possible To achieve good true color effect, reactive dyes are used. These reactive dyes are characterized by the fact that over reactive Groups with functional groups of the respective fibers, for example Cotton, covalent bonds are formed. This will be a fixed Achieved compound of the dye with the relevant fiber. The The result is real, brilliant textile dyeings. Be jeans fabrics with reactive dyes as textile dyes after or dyed, is the achievable result of the amount of textile dye used dependent. If too much textile dye based on reactive dyes is added, That's how the jeans fabric is made evenly colored, and the jeans effect is lost. However, if too little textile dye is Based on reactive dyes, dosed, is virtually none Effect recognizable.

by virtue of the effect described above is therefore a coloring with textile dyes, which a true color achieve in the application for the customer, usually the end user, very problematic, since a precise dosage of the amount of textile dye to be used for the dyeing must be made. This complicates the use of such textile dyes, and the acceptance of the addressed end consumers is corresponding low.

Farther is aggravating added that The jeans fabric differ from each other, so that an exact Prediction of the amount to be added by the manufacturer can hardly be made as a recommendation to the end user.

Of the The present invention is based on the object, a component system for coloring of denim fabrics available to provide, which does not have the aforementioned disadvantages.

This object is achieved according to the invention by the use of a component system for dyeing jeans fabrics, comprising a dye component, and a second, a dye surplus removing component, wherein the dye component 85 to 99.5 wt% of a salt, 0.2 to 14, 5 wt% of a dedusting agent and 0.2 to 8 wt% of a dye, and wherein the second Kom 80-99% by weight of a salt and 0.2-15% by weight of a polyvinyl polymer, wherein the weight percentages are based on the total amount of the respective components, and wherein the ratio of the added amount (in weight percent) of the dye to that of the polyvinyl polymer within a range of 1:10 to 5: 1. Preferably, the dye component comprises 90 to 99.5% by weight, more preferably 95 to 99% by weight of a salt, 0.5 to 5% by weight of a dedusting agent, and 0.5 to 5% by weight, more preferably 0.5 to 3% by weight dye. The second component preferably comprises 90 to 99% by weight of a salt and 0.5 to 5% by weight, more preferably 0.5 to 4% by weight, of a polyvinyl polymer. Furthermore, the second component preferably comprises up to 10% by weight of a surfactant, more preferably from 0.2 to 3% by weight.

Prefers is the ratio the amount of the dye added to that of the polyvinyl polymer in a range of 1: 6 to 4: 1, more preferably 1: 6 to 1: 1. More preferably, the dye is a substantive dye.

One Noun dye (also called direct dye) is one in all Usually water-soluble Dye which rests in substance on the fiber in question. Here are the to be colored Fiber no covalent bonds as in the case of reactive dyes rather, a binding of the dye to the respective fiber due to electrostatic, steric or other interactions between the fiber and the dye molecules.

The Component system has the big one Advantage that a exact dosage of the dye or dye component to be added in contrast to known dyes is no longer necessary. All whether a single denim pants or a denim pants with a jeans jacket and other jeans fabrics can be washed always the same amount of the dye component and the second component can be used, in each case then a coloring effect is achieved by which the jeans character of the fabric to be dyed largely preserved. The component system is therefore extremely simple and versatile also apply to different denim fabrics.

By the ratio setting made in the component system the amount of the dye added to the dye component that of the polyvinyl polymer of the second component becomes a coloring of denim fabrics allows through which the jeans effect is preserved. The polyvinyl polymer can at the specified ratios one on the dyed Remove textile excess dye, because of the polyvinyl polymers a strong complex with the added dyes is received. This will be the Existing dye surplus very easy and thoroughly from the dyed Denim fabric pulled off. At the same time is by the said ratio too ensured that not overly much Dye is removed. Surprisingly, it has been shown that with the component system pronounced colourfast dyed Jeans fabrics can be obtained an effect that the expert actually only in the use of Reactive dyes would have expected. This is probably due to the fact that a relative small amount of dyes is used, which has a high affinity to the to be colored Jeans fabric have. About that In addition, dyed denim fabrics can be obtained with the component system, which are very high values for water fastness, wash fastness at 40 ° C and sweat-fastness exhibit.

Prefers the polyvinyl polymer of the second component is a homopolymer, in particular polyvinylpyridine-N-oxide, and / or a copolymer, further preferably a copolymer prepared from monomers selected from a group comprising 1-vinylimidazole and / or 1-vinyl-2-pyrrolidone. Take such polyvinyl copolymers advantageously, the entire excess of color, which is on the dyed denim fabric is located, but not so completely, that the entire applied Textile paint completely is removed. Polyvinyl copolymers of said class of substances result colored Jeans fabrics, which even after dyeing a jeans character exhibit.

Prefers has the second component of the component system less than about 2% by weight of the polyvinyl polymer. Such amounts of the polyvinyl polymer in the second component, in particular taking into account of the relationship the same to the added amount of dye in the dye component excellent properties, especially with regard to achievement of a typical dyeing character on. Furthermore, those mentioned with polyvinyl polymers Lot of dyed denim fabrics especially a very high wash fastness, i. even after several times Washing is not a strong discoloration determine.

The mentioned and other advantages of the present invention illustrated by the following examples.

Original Jeans Different brand manufacturers were under different conditions in different washing machines with the following dye components or second components treated:

dye component A

The Dyes used in Dye Component A are reactive dyes. The dye is composed of 16.67% by weight of red RB gran. 133, 74.07 Weight% Navy GG gran. 133 and 9.26% by weight brilliant blue R spec. together, where the weight percentages are based on the total amount of the dye. The individual mentioned in the dye Dye components contained by DyStar textile dyes GmbH & Co., Leverkusen, Germany.

0.35 g of the dye defined above were used together with 675 g sodium chloride as salt and 75 g metasilicate (manufacturer: SILMACO N.V., Lanaken, Belgium) as an alkali fixer and 0.25 g Pluriol E 400 (BASF Aktiengesellschaft, Ludwigshafen), a polyethylene glycol, mixed as a dedusting agent. The dye component thus obtained A served as reference substance.

dye component B

Of the Dye of Dye Component B was composed of 4.68 % Sirius Blue S-BRR, 4.08% by weight Telon Marine AMF, 4.68% by weight Sirius Black OB-V, 1.20% by weight Isolan Black 2S-LDN, 1.20% by weight Sirius Ruby K-2BL, 0.30% by weight of Telon Yellow A3RL and 83.86% by weight of sodium sulfate. The aforementioned dyes are all substantive dyes and come from the company DyStar Textile dyes GmbH & Co., Leverkusen, Germany. 4 g of this dye mixture were mixed with 145 g of sodium chloride (BASF Aktiengesellschaft, Ludwigshafen, Germany) and 1 g Pluriol E 400 mixed.

Second component

The second component used was mixtures of 0.6 g of Ninol LMP (STEPAN EUROPE, Voreppe, France), a surfactant based on alkylolamides and alkylolamines, and 0.9% Marlon ARL (Brenntag GmbH, Mülheim, Germany) Surfactant based on mixtures of benzenesulfonic acids with C ₁₀ -C ₁₃ -alkyl derivatives and sodium toluenesulfonate (Examples A1, A2, B1 and B2), or 1.5 g of Ninol LMP and 2.25 g of Marlon ARL (Example C1) with 1 g Sokalan HP 56 granules (BASF Aktiengesellschaft, Ludwigshafen, Germany) (Sample B1), 10 g Sokalan HP 56 granules (Example B2), 20 g Sokalan HP 56 granules (Examples A1 and C1) and 5 g Sokalan HP 56 Granules (Example A2) used. Sokalan HP 56 Granules is a polyvinylpyrrolidone derived from 1-vinylimidazole and 1-vinyl-2-pyrrolidone. These mixtures were made up to a volume of 150 g with sodium chloride as salt.

With the aforementioned blends were different denim fabrics colored:

Example A

Here was dyed an original jeans of the brand "Revils". First was in the example A0 as standard pattern an original jeans the Brand "Revils" at 40 ° C with a commercial Heavy duty detergent, for example, the brand "Ariel", Henkel KGaA, Dusseldorf, Germany, washed. The washing took place in a washing machine of the brand "AEG 70529", AEG-Hausgeräte, Nuremberg, Germany. Germany.

in the Example A1 was the "Revils" -Jeans with the dye component B at 40 ° C colored, subsequently at 40 ° C was washed with the second component, consisting of 20 g Sokalan HP 56 granules, 0.6 g Ninol LMP, 0.9 g Marion ARL, wherein this mixture is filled up was added to a quantity of 150 g by sodium chloride as a salt.

in the Example A2 was again dyed with the dye component B at 40 ° C, the original jeans and subsequently at 40 ° C washed with a second component according to Example A1, but instead 20 g of Sokalan HP 56 granules now only 5 g of Sokalan HP 56 granules with correspondingly more sodium chloride than salt was added.

Example B

As standard served here an original jeans of the brand "Pioneer", which at 40 ° C with a trade conventional heavy duty detergents of the brand "Ariel", Procter & Gamble, Schwalbach, Germany.

in the Example B1 was the dye component B for dyeing 40 ° C in a washing machine of the brand "Primavera" Miele & Cie GmbH & Co. KG, Gütersloh, Germany, colored and then at Washed at 40 ° C with a mixture of 0.6 g Ninol LMP, 0.9 g Marlon ARL, 1 g Sokalan HP 56 granules, refilled to a quantity of 150 g with sodium chloride as salt, as second Component.

Corresponding Example B2 was used but 10 g of Sokalan HP were used 56 granules used and correspondingly less sodium chloride added as salt.

Example C

When Standard was Example C0, namely an original jeans of the brand "Levi Strauss ", washed in 40 ° C with a commercial one Heavy duty detergent of the brand "Ariel", Procter & Gamble, Schwalbach, Germany.

In a washing machine "W 935 "of the company Miele & Cie GmbH & Co. KG, Gütersloh, Germany, the dye component B was added in Example C1 coloring the original "Levi Strauss "jeans at 40 ° C used, subsequently at 40 ° C was rinsed with a mixture of 20 g of Sokalan HP 56 granules, 1.5 g Ninol LMP and 2.25 g Marlon ARL, each topped up 150 g by an appropriate addition of sodium chloride as a salt.

in the Example C2 was at 40 ° C in a washing machine "W 935 "of the company Miele & Cie GmbH & Co. KG, Gütersloh, Germany, using the dye component A at 40 ° C the original jeans colored and subsequently at 40 ° C washed with a commercial Detergents of the brand "Ariel", Procter & Gamble, Schwalbach, Germany.

In Example C3 was in a washing machine of the brand "Primavera" Miele & Cie GmbH & Co. KG, Gütersloh, Germany, dye component B for dyeing at 40 ° C of the original jeans used, followed by at 40 ° C was washed with a commercial heavy duty detergent Trademark "Ariel" of the company Procter & Gamble, Schwalbach, Germany.

2. Waschechtheit bei 40°C

3. Schweißechtheit

The thus washed and dyed different jeans were checked for waterfastness according to DIN EN ISO 105-E01, wash fastness according to DIN EN ISO 105-C06 at 40 ° C. and perspiration fastness according to DIN ISO EN 105-E04. The results are shown in Tables 1 to 3. 1. Waterfastness

2. Wash fastness at 40 ° C

3. sweat fastness

WO

für Wolle,

PAN

für Polyacryl,

PES

für Polyester,

PA

für Polyacetat,

CO

für Baumwolle und

CA

für Acetat.

In Tables 1 to 3 stands

WHERE

for wool,

PAN

for polyacrylic,

PES

for polyester,

PA

for polyacetate,

CO

for cotton and

CA

for acetate.

As In particular, Tables 1 and 2 can be seen, the Mixture C3, in which a commercial heavy-duty detergent is used was the worst values for water fastness and washfastness at 40 ° C. The dyed denim fabric according to example C2, in which a reactive dye (dye A) is used came, both pointed for the water fastness, wash fastness and perspiration fastness excellent values, which corresponded to the standard CO, however had the correspondingly colored Jeans a very "cheap" look as they evenly colored, i.e. both warp and also weft Completely and uniformly colored. A jeans-character pointed the dyed jeans according to example C2 no longer on.

All Further examples A1, A2, B1, B2 and C1 had the typical jeans character. Indeed could be determined that ever higher the Proportion of added polyvinyl polymers in the second component was a bit stronger discoloration the freshly dyed Original jeans occurred. In this regard, provided optimal results Examples A2 and B1. With regard to the verified criteria of waterfastness, Wash fastness at 40 ° C and sweat-fastness could all Examples A1, A2, B1, B2 and C1 convince. In every sense Satisfactory results could be achieved in particular according to example A2 can be achieved.

When a component system has proven particularly advantageous which in its dye component is less than 1% by weight dedusting agent and less than 3% by weight of dye, the remainder being salt, preferably sodium chloride, is formed, and in its second component less than 0.5% by weight of surfactant and less than 4% by weight of polyvinyl polymers, the remainder being formed by salt, preferably sodium chloride is, wherein the respective weight percentages relate are based on the total amount of the respective components.

Claims (7)

Use of a component system comprising a dye component and a second, dye-overrun one Component, wherein the dye component comprises 85 to 99.5% by weight of a salt, 0.2 to 14.5% by weight of a dedusting agent and 0.2 to 8% by weight of a Dye includes and wherein the second component comprises 80 to 99% by weight of a salt and 0.2 to 15% by weight of a polyvinyl polymer, wherein the weight percent each based on the total amount of the respective components, and the ratio the amount added (in% by weight) of the dye to that of Polyvinyl polymers in a range of 1:10 to 5: 1, for To dye of jeans fabrics. Use according to claim 1, characterized in that the relationship is in the range of about 1: 6 to about 4: 1. Use according to one of the preceding claims, characterized in that the Polyvinyl polymer is a homopolymer and / or copolymer. Use according to one of the preceding claims, characterized in that the Polyvinyl polymer is a copolymer prepared from monomers selected from a group comprising 1-vinylimidazole and / or 1-vinyl-2-pyrrolidone. Use according to one of the preceding claims, characterized in that the Dye component less than about 1% by weight, based on the total amount component, dye. Use according to one of the preceding claims, characterized in that the second component less than about 2% by weight of the polyvinyl polymer includes. Use according to one of the preceding claims, characterized in that the dye is a substantive dye.