JP2516490B2 - Textile treatment method and composition - Google Patents

Abstract

A process and composition for the domestic treatment of a fabric to reduce the amount of dye released from the fabric during wet treatments comprising the steps of contacting the fabric with a solution of the composition comprising a cationic dye fixing agent wherein the temperature of the solution is below 40 DEG C throughout the process. The invention has the advantage that dye transfer between coloured and white or coloured and coloured fabrics during wet treatments such as laundering is reduced.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to textile treatment compositions and methods for reducing the release of dye from colored ( or dyed ) textiles during wet processing such as selection and rinsing steps.

[0002]

BACKGROUND OF THE INVENTION In the field of industrial fabric post-treatment, dyed or printed fabrics are colored "stop" agents.
Processing with a fixing agent) is known. The color fixatives, usually as (i) soap aids, facilitate the removal of loosely bound dyes from the fabric, making the remaining strongly bound dyes relatively fast to subsequent wet processing, or (ii) ) As a binder, it works either by promoting the binding of the loosely bound dye to the fabric and thus increasing the fastness of the dye to subsequent wet processing.

The present invention relates to a second (bonding) type of color fixative.

Under domestic conditions, when mixed laundry of colored fabrics and laundry of mixed colored fabrics and white fabrics is subjected to wet processing (eg, the washing and rinsing steps of the laundering process), it is industrial. Despite the post-treatment, there is the risk of dye transfer from textiles to other textiles from time to time via treated water. When dye transfer occurs, the colorant seeps out and discolors, the fabric discolors and
/ Or stains, which is obviously undesirable.
As fashion evolves into more colored garment and textile materials, especially multicolored garment and textile materials, the problem of dye transfer during wet processing has become more serious.

Various proposals have been made in the art for solving this problem, but the solution is mainly to bleach or inactivate the dye once incorporated in the washing or rinsing solution. Depends on. Examples of these are
British Patent Nos. 1,368,400 (Procter & Gamble), European Patents 0,024,368 (Unilever) and 0,265,257 (Un
ilever).

The present invention aims to provide a composition and method for reducing the release of dye from colored fabrics during wet processing, which substantially alleviates the drawbacks of the prior art.

When applied as an industrial process, color fixatives are usually from heated liquids that contain specified levels of color fixatives, salts that provide optimum ionic strength, and pH modifiers that maintain pH at low levels. Apply by spreading or pad through the fabric using the heated liquid described above. It is generally believed that a solution temperature above 40 ° C. is essential for carrying out the treatment. For example, INDOSOL E-50 liquid (27.02.84 Ref 6008.35.8
According to Sandoz's technical literature regarding 4), the treatment liquid is 50-60 ° C.
Exhaustion is performed by heating at the temperature of 20 to 30 minutes.

Similarly, Crosfield Textile Chemical relating to CROSCOLOR PMF (July 1981, code number 7894) and CROSCOLOR NOFF (January 1988, code number 8544)
In the article of S., two cationic color-fixing agents are used, and the cases of emission treatment temperature of 50 ° C. for 20 minutes and 40 ° C. for 20 to 25 minutes are disclosed. Therefore, in the industrial post-treatment field, it is disadvantageous that the process temperature is lower than 40 ° C.

It is also generally believed that a high concentration of color fixative in the liquid is essential for carrying out the stripping process. Crosfield Textile Chemic for CROSCOLOR PMF
The als reference suggests 10% by weight of the fabric.

[0010]

Surprisingly, as part of a household treatment process, at temperatures below 40 ° C., color fixatives can be used in component extraction treatments on textiles at levels lower than normally used industrially. It has been found that this method can be used to reduce the release of dye from colored fabrics during wet treatments such as home laundry.

Accordingly, the present invention provides a 40 ° C. throughout the process to reduce dye release from the fabric during wet processing.
Provided is a method of treating a textile comprising contacting the textile with a solution of a composition containing a cationic color stop agent at a solution temperature below.

The color-fixing effect found from the domestic process using a color-fixing agent usually used in industrial processes was quite surprising. This is because the pH, ionic strength and water hardness cannot be easily controlled during the home washing process.

The method may be carried out as part of a domestic laundry process (ie, part of the washing stage or part of the rinsing stage) or as a separate treatment.

The addition of non-ionic detergent actives to the compositions of the present invention enhances the effect of the color stop and substantially reduces the amount of dye released from the treated fabric during subsequent wet processing. It was found that they got it. Since the industrial literature taught that a certain ionic strength in the processing solution was required to prevent the release of excess dye,
This was unexpected. It is especially advantageous to incorporate a color fixer into the nonionic base detergent powder or liquid which may be used in the process of the invention.

Accordingly, the present invention comprises (i) a cationic color fixative, (ii) a detergent active, preferably a nonionic detergent active, and (iii) optionally a fabric softening compound. A composition is provided.

Suitable tinting agents for use in the method of the present invention are of the cationic type [eg of aliphatic polyamines].
Indosol E-50 (from Sandoz) and Croscolo, a dimethyldiallylammonium chloride polymer with a molecular weight of 2,000-20,000.
r NOFF (Crosfield)]. Other cationic color fixatives are available in Aftertreatments for Improving the
Fastness of Dyes on Textile Fibers, Christopher
C Cook, (REV.PROG.COLORATION VOL 12 1982). Suitable tinting agents for use in the present invention include, for example, fatty acid-diamine condensates (eg oleyldiethylaminoethylamide hydrochloride, acetate, methosulfate and benzyl hydrochloride, oleylmethyl-diethylenediaminemethosulfate). Salts, monostearyl-ethylenediaminotrimethylammonium methosulfate and oxidation products of tertiary amines), polymeric alkyldiamine derivatives, polyamine-cyanuric chloride condensates, and ammonium compounds such as aminated glyceroldichlorohydrin. .

The amount of color fixer to be used in the composition of the present invention is preferably 0.01 to 50% by weight of the composition, 1 to 25%.
% By weight is more preferred, and 5-20% by weight is most preferred.

The method of the present invention comprises one of the rinsing steps in the washing process, usually at a rinsing water temperature of 5 ° C. to 25 ° C., where the color fixative is part of a composition containing the components involved in a conventional rinsing conditioner. It has been found to be particularly convenient when implemented as a department.

The composition according to the invention comprises one or more detergent active materials selected from soaps, non-soap anionic, nonionic, zwitterionic and amphoteric synthetic detergent active materials,
Includes cationic, nonionic, zwitterionic and amphoteric fabric softening materials, and optionally one or more fabric softening materials. Nonionic materials are particularly useful in the present invention.

Many suitable detergent compounds are commercially available and are described in detail in the literature. These are for example Shwa
Surface Active Agents a by rtz, Perry and Berch et al.
nd Detergents ”Vol I and II.

Suitable non-ionic compounds which can be used include reaction products of compounds having a hydrophobic group and a reactive hydrogen atom (for example aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide). Or optionally a reaction product with propylene oxide). Specific examples of the nonionic detergent compounds are alkyl (C ₆ -C ₂₂₎ phenols - ethylene oxide (usually up to 25 EO, i.e., until 25 units of ethylene oxide per molecule) condensates, aliphatic (C ₈ ~ C ₁₈ ) a condensate of a primary or secondary linear or branched alcohol with ethylene oxide, usually up to 40 EO,
It is produced by condensation of ethylene oxide with a reaction product of propylene oxide and ethylenediamine. Other so-called nonionic detergent compounds include alkyl polyglycosides, long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulfoxides.

Amphoteric or zwitterionic detergent compounds may also be used in the compositions of the present invention, but are usually not desirable due to their relative high cost. If an amphoteric or zwitterionic detergent compound is used, its amount is usually small.

Suitable fabric softening compounds may be selected, for example, from cationic fabric softening materials, nonionic fabric softening materials. Suitable materials include substantially water-insoluble quaternary ammonium compounds (eg EP 892005).
45.5 and 239,910), amine materials, amphoteric fabric conditioning materials (European Patent No. 89200545.5).
No.), clay, polysiloxane (European Patent No. 150,867)
No .; Procter and Gamble Co.) and nonionic cellulose ethers (European Patent No. 213.730; Unilever).

The effective amount of detergent active or fabric softening compound (s) used in the composition of the present invention is usually in the range of up to 50% by weight of the composition, preferably up to 40% by weight, most preferably up to 30% by weight. preferable. A preferred level is 1 to 50% by weight, more preferably 2 to 30% by weight.

The detergent composition of the present invention may include a detergent builder to increase the efficiency of the detergent activator, especially to remove calcium hardness ions from water and to make them alkaline. Builder materials include inorganic precipitated builder materials (eg, carbonic acid, bicarbonate, boric acid, orthophosphoric acid and silicic acid alkali metal salts), sequestering builder materials (eg, pyrophosphoric acid, polyphosphoric acid, aminopolyacetic acid, polyphosphonic acid, Aminopolymethylenephosphonic acid and polycarboxylic acid alkali metal salts), ion exchange builder materials (eg zeolites and amorphous amino-silicates), organic precipitated builder materials [eg formula (I); (In the formula, R ₁ is an arylalkyl or alkylaryl group having the same chain length, or a C ₁₀ -C ₂₄ alkyl or alkenyl group, X is CH, CR ₂ , N or CON; and R ₂ is A C ₁ -C ₃ alkyl group; Z is COOY or SO ₃ Y; Y is hydrogen or a soluble cation, preferably an alkali metal, especially sodium; n and m are the same or different. Which may be 0 or an integer of 1 to 4)], or a mixture of any one or more thereof. Preferred examples of the builder material include sodium triphosphate, a mixture thereof with sodium orthophosphate, sodium carbonate, a mixture thereof with calcite as a seed crystal, sodium citrate, zeolite and sodium nitrile triacetate.

The level of such builder material in the composition of the present invention is up to 80% by weight, preferably 20-70% by weight, most preferably 30-60% by weight.

The detergent composition according to the invention is preferably alkaline in that it has a pH above 8.0 when added to water at a concentration of 1% by weight at 25 ° C.

In addition to the ingredients already mentioned, the detergent compositions according to the invention contain any of the conventional additives in such amounts that such additives are commonly used in textile laundry detergent compositions. obtain. Examples of these additives include additional fabric softeners. The fabric softening agent is an organic precipitation builder,
It has been found that particularly beneficial effects are obtained when in a mixture with either a cationic fabric softener or a fatty amine. Other optional additives include suds boosters (eg, alkanolamides, especially monoethanolamide derivatives from palm kernel fatty acids and coconut fatty acids), foam depressants, oxygen-releasing bleaches (eg, peroxides). Sodium borate and sodium percarbonate), peracid bleach precursors, chlorine-releasing bleaches (eg trichloroisocyanuric acid), inorganic salts (eg sodium sulphate) and
Fluorescent agents, fragrances (including deodorant fragrances), enzymes (eg cellulase, protease and amylase), bactericides and colorants, etc.

The composition may be aqueous or non-aqueous and may or may not have a well-defined structure and may be in any convenient form such as rods, powders, pastes or liquids.

The detergent composition is a dry-blend component.
It may be prepared by any method suitable for its physical form, such as by agglomeration or by dispersing it in a liquid carrier. The fabric softening agent can be blended as it is or in a particulate form. The color fixative may be formulated in the liquid or solid state.

The compositions of the present invention are particularly suitable for use in rinsing and preferably consist of 1 to 70% of fabric softening composition.

For use in the rinse cycle of a textile washing process, the composition of the present invention is preferably a liquid,
It consists of an aqueous base which may comprise 5 to 97% by weight of the composition.

Fabric softening composition for use in rinsing
The pH is preferably less than 8.0 when added to water at a concentration of 1% by weight of the composition.

The invention will be further illustrated by the following non-limiting examples.

[0035]

Example 1 Example 1 Indosol E-50 (manufactured by Sandoz) and Croscolor NOFF (Crosfi
The color fixer from eld Textile Chemicals) was applied separately to fabrics dyed with the various dyes (and undyed). It was applied in the solution temperature range from 20 ° C to 40 ° C and in each case both colored and white fabrics were present to evaluate the dye transfer which occurred during the treatment process. Discoloration was measured as the CIELAB ΔE value with a DG5 illumination and a 10 ° observer.

The treatment was carried out as follows.

A: Cloth, 0.05% by weight of color fixative, Arqua
d2HT fabric softener in solution with 0.25 wt% dispersion at 20 ° C
Soaked for 15 minutes.

B: The cloth is immersed in the solution of A above at 40 ° C. for 15
Soaked for a minute.

C ... Cloth with 0.05% by weight of a color stop agent and Synpe
It was immersed in a solution of ronic A7 (manufactured by ICI) nonionic detergent activator 0.05 g / l at 20 ° C. for 15 minutes.

D: The cloth was dipped in the solution of C at 40 ° C. for 15 minutes.

The fabrics used in Examples 1 and 2 were as follows.

Cloth 1 ... Cloth dyed with Direct Green 26 Cloth 2 ...... White monitor treated with cloth dyed with Direct Green Cloth 3 ...... Cloth dyed with Direct Blue 25 Cloth 4 ...... dyed with Direct Blue White monitor treated with the above-mentioned cloth Cloth 5 ... Cloth dyed with Direct Red 80 Cloth 6 ... White monitor processed with the cloth dyed with Direct Red Table 1 shows the results.

These results show that there was usually less dye transfer during the process of the invention when the liquid temperature was less than 40 ° C. For example, the ΔE value of treatment A is generally lower than that of treatment B (high temperature treatment), indicating that dye transfer did not occur much. This is also
The same result is obtained by comparing the treatment C and the treatment D (high temperature treatment).

[0044]

[Table 1]

Example 2 A treated colored cloth and a treated white monitor were kept at 40 ° C. for 15 minutes.
Washed in detergent composition for 1 minute with a clean white monitor. Control experiments were also performed using untreated colored cloth and a clean monitor.

The detergent composition had the following composition (parts by weight):

Linear alkyl sulfate 6 Ethoxylated nonionic surfactant 7EO 4.5 Ethoxylated nonionic surfactant 3EO 3.5 Soap (anhydrous) 0.27 C _{16 to} C ₁₈ fatty acid 0.3 Sodium silicate (alkaline) 6 Triphosphorus Sodium acid 25 Sodium carbonate 5 Carboxymethyl cellulose sodium salt 0.32 Acrylic acid / maleic acid copolymer 0.5 Sodium ethylenediaminetetraacetate 0.13 Sodium sulfate 26 Water and minor components 7.96 Treated (Cloths 2, 4 and 6 of Example 1) and untreated white monitor The results of measurement of ΔE were as follows.

ΔE (no additional color stop added to the laundry after washing) Indosol E- 50 Croscolour NOF F Treatment A Control 19.30 19.30 Fabric 2 15.00 17.09 Untreated White Monitor 12.97 16.59 Control 21.55 21.55 Fabric 4 13.73 16.70 Untreated White Monitor 12.33 15.70 Control 12.02 12.02 Cloth 6 5.58 7.21 Untreated White Monitor 5.49 6.85 Treatment B (Comparative) Control 19.30 19.30 Cloth 2 16.38 18.15 Untreated White Monitor 15.15 17.30 Treated C Control 19.30 19.30 Cloth 2 4.11 8.24 Untreated Treated White Monitor 2.88 7.17 Control 21.55 21.55 Cloth 4 12.85 15.93 Untreated White Monitor 11.08 14.48 Control 12.02 12.02 Cloth 6 6.98 7.85 Untreated White Monitor 5.97 6.57 Treated D (Comparative) Control 19.30 19.30 Cloth 2 7.91 13.46 Untreated White Monitor 6.18 12.06 These results show that the method of the present invention can reduce the dye emission from the colored fabric even during wet treatment such as washing. This result can be seen at any ΔE value of treatments A or C, and the fabrics washed with the dyed, colored fabric showed less dye transfer than those washed with the control fabric. .

Cloth washed with treatment B (40 ° C) and treatment A (20
C.) or treated D (40.degree. C.) and treated C (20.degree. C.) compared to one another, the dye transfer is better suppressed in the low temperature process of the present invention. I understand that

Example 3 A liquid textile treatment composition according to the invention suitable for use in the rinsing cycle of a domestic washing machine was as follows.

A B HTTMAPC ¹ 5.8 35.0 Hardened tallow 0.95 5.7 Fatty acid Genapol T-150 ² 0.05 0.3 Indosol E50 5 30.0 Perfume 0.15 0.9 Water and minor components residual balance 100 100 1 …… 1,2-di-hardened tallow oxytrimethylammonium propane Chloride (Hoechst) 2 ... Tallow alcohol ethoxylated with 15 moles of ethylene oxide (Shell)

Claims (8)

(57) [Claims] 1. In order to reduce the release of dyes from colored textiles during wet processing, the textiles, the cationic tinting agent and the nonionic detergent activity at a solution temperature of 5 ° C. to 25 ° C. throughout the process. A method for household treatment of textiles in a laundering process comprising the step of contacting an aqueous base solution of a composition containing an agent. 2. The composition comprises 0.01 cationic color stop agent.
2. The method of claim 1, comprising .about.50% by weight. 3. A method according to claim 1 or 2, characterized in that the process is carried out as part of the rinsing step of the washing process. 4. (i) a cationic color-fixing agent and (ii) a nonionic detergent activator or a nonionic detergent activity for reducing the release of dyes from colored textiles during wet processing. A composition for treating textiles in a laundry process, which comprises a mixture of an agent and another detergent active agent. 5. The composition of claim 4, wherein the composition further comprises a fabric softening compound. 6. (I) 0.01 to 50% by weight of a cationic color stop agent, and (ii) a nonionic detergent activator 1 for reducing the amount of dye released from a colored fabric during wet treatment. A detergent composition for treating textiles in a washing process, comprising from about 50% by weight. 7. (i) 0.01 to 50% by weight of a cationic color stop agent, and (ii) a nonionic detergent activator 1 for reducing the release of dyes from colored fabrics during wet processing. A liquid textile treatment composition for the treatment of textiles in a laundering process comprising -50% by weight and (iii) 1-50% by weight of a fabric softening compound. 8. The liquid textile treatment composition according to claim 7, wherein the liquid composition comprises an aqueous base.