JPH10158693A - Water washing method of animal fiber product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing method, although being a water washing of animal fiber products, whose working efficiency of finishing is enhanced to the same level as that of dry cleaning, washing is complete, and deformation, wrinkle, and shrinkage is prevented to be looked like new, and it is excellent in safety and economy of the work, and existing washing machines and dewaterers are applicable. SOLUTION: In this washing method of fiber products including an animal fiber, the fiber products are immersed in an aqueous solution in which at least a nonionic surfactant and/or an anionic surfactant and at least one of the fiber protecting agent selected from the group consisting of a lanolin derivative, a polycarboxylate, a polyacrylamide derivative, a polyoxyethylene derivative, a paraffin sulfonic acid derivative, etc., are dissolved, and after washing they are treated with a finishing agent contg. at least one kind of silicone selected from the group consisting of dimethyl silicone, an amino modified silicone, an epoxy modified silicone, and an polyether modified silicone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for washing textiles containing animal fibers such as wool, animal hair and silk with an aqueous system.

[0002]

2. Description of the Related Art Washing of textile products containing animal fiber, for example, pure wool, or a mixed fiber of wool and synthetic fiber such as polyester fiber or vegetable fiber such as cotton, rayon, hemp, or non-woven clothing or non-clothing. In general, it was done by dry cleaning. These fiber products can be prevented from shape collapse and shrinkage by dry cleaning. However, in the dry cleaning, the oily stain is removed because the cleaning is performed with an organic solvent, but the water-soluble stain is not removed. Therefore, water-soluble stains and stains are partially removed by pre-treatment or post-treatment. In addition, the organic solvent used in dry cleaning is more expensive than water, and there is a problem that dirt is re-adhered to textiles because a process equivalent to rinsing in water-based cleaning cannot be taken. . Environmental pollution due to volatilization and diffusion of the organic solvent also becomes a problem, and special equipment is required. In general, since expensive organic solvents and equipment are used,
Dry cleaning is inevitably more expensive than water-based cleaning (wet cleaning).

In recent years, therefore, even among animal fiber products, detergents that can be washed with a water system in a home washing machine, so-called dry mark detergents, have become widespread. The dry mark detergent keeps the pH of the aqueous cleaning solution from acidic to slightly alkaline, prevents the decomposition of the protein which is a constituent polymer of animal fiber, and prevents the fiber from being felted. Therefore, at home, clothes such as wool can be easily washed.

[0004]

However, since the dry mark detergent is a water-based washing, it is likely that the fibers are felted, the shape of the clothing is deformed, wrinkled, and shrinks depending on the manner of dehydration and drying after the washing. In order to prevent such a phenomenon, spread the washed clothes, which have been lightly dehydrated by light compression, on a flat screen or the like one by one and shade them, or dry them one by one under a slight breeze. I can't help but. Centrifugal dehydration, twisting, and forced drying (hot air drying with a dryer)
Then, shape collapse and wrinkles increase. However,
It is a very inefficient task to arrange clothes that are not sufficiently dehydrated one by one and dry them naturally. For this reason, water-based cleaning of woolen fabrics and the like with a dry mark detergent is not widely used in business-use cleaning that emphasizes work efficiency.

In general, animal fiber products such as woolen fabrics have a lot of outer garments, are bulky, and place importance on the finish. Therefore, in the cleaning industry, there has long been a long-awaited need for a method of cleaning animal fiber products by using a commercial automatic washing and dehydrating machine that has been widely used in the industry as an existing facility.

[0006] The present invention has been made to meet such a demand, and improves the work efficiency of finishing to the same level as the work efficiency of dry cleaning, while cleaning animal fiber products with an aqueous system. With
Provide a washing method that can perform sufficiently clean washing, prevent shape loss, wrinkles and shrinkage, do not lose the new feeling, is excellent in work safety and economical efficiency, and can use the existing fully automatic washing and dehydrating machine Things.

[0007]

According to a first aspect of the present invention, there is provided a method of cleaning an aqueous textile product containing an animal fiber, the method comprising the steps of: , At least a nonionic surfactant and / or an anionic surfactant, and at least one fiber protective agent selected from a lanolin derivative, a polycarboxylate, a polyacrylamide derivative, a polyoxyethylene derivative, a paraffinsulfonic acid derivative and the like. Immersing the textile in a dissolved aqueous cleaning solution, washing the textile, and then treating with a water-based finish having at least one type of silicone selected from dimethyl silicone, amino-modified silicone, epoxy-modified silicone, and polyether-modified silicone. Features.

[0008] The nonionic surfactant and / or anionic surfactant is a main component of the detergent, and other components of the detergent include a builder, a redeposition inhibitor,
Auxiliaries such as enzymes, anti-caking agents and antioxidants can be added as needed. The appropriate amount of detergent used is about 1 to 3 g / liter in water. Below this, the cleaning power is insufficient,
Even if it is used more, the washing power saturates, so it is uneconomical.

Examples of the nonionic surfactant include a polyoxyalkylene alkyl obtained by adding an average of 6 to 18 mol of ethylene oxide (EO) and / or propylene oxide (PO) to a primary or secondary alcohol having 8 to 18 carbon atoms. Or alkenyl ether, polyoxyethylene alkyl phenyl ether having an alkyl group having an average of 6 to 12 carbon atoms and adding ethylene oxide on an average of 6 to 12 mol, mono- or dialkanolamide having 10 to 18 carbon atoms, and ethylene oxide adduct A polyoxyalkylene alkyl or alkenyl fatty acid ester in which ethylene oxide and / or propylene oxide is added on average to 7 to 18 moles of a fatty acid having 6 to 22 carbon atoms,
Examples thereof include an alkyl (alkenyl) amine oxide having 0 to 20 alkyl groups or alkenyl groups, and a pluronic surfactant obtained by adding ethylene oxide to a condensate of propylene oxide and propylene glycol.

Examples of the anionic surfactant include a linear or branched alkyl benzene sulfonate having an alkyl group having 8 to 16 carbon atoms, an alkyl sulfate or alkenyl sulfate having 12 to 18 carbon atoms, To 18 olefin sulfonates, 12 to 18 alkane sulfonates, 12 carbon atoms
Polyoxyalkylene alkyl ether sulfates or polyoxyalkylene alkenyl ethers having an alkyl group or alkenyl group of from 18 to 18 and an average of 0.5 to 8 mol of ethylene oxide, propylene oxide, butylene oxide or ethylene oxide-propylene oxide added thereto Sulfuric acid esters, saturated or unsaturated α-sulfofatty acid salts having 8 to 20 carbon atoms or methyl, ethyl or propyl ester, alkyl or alkenyl acid phosphoric acid ester salts or phosphoric acid ester salts thereof are exemplified. Salts of these anionic surfactants include sodium salts, potassium salts, ammonium salts and alkanolamine salts.

Examples of the builder which is an auxiliary agent optionally added to the detergent include phosphates such as tripolyphosphate and pyrophosphate, sulfates, hydrogencarbonates, silicates, ethylenediaminetetraacetate, and nitrilotriacetate. Aminopolyacetates such as, polycarboxylic acids such as citric acid, amino acid salts such as glutamate, ethane-1,1-diphosphonate, carboxylic acid-based high molecular compounds such as polyacrylate are suitable, Is mixed as a single product or a mixed product such that the PH becomes about 8 or less. For example, polyethylene glycol, carboxymethylcellulose, and polyacrylate are suitable as the anti-redeposition agent. Enzymes that decompose dirt components include proteases, amylases and lipases. An anti-caking agent, an antioxidant, and the like are also added as necessary.

Examples of the fiber protective agent include lanolin fatty acid ethylene oxide 30 mol adduct, lanolin derivatives such as lanolin alcohol sulfate, polycarboxylates such as sodium polyacrylate having a molecular weight of 10,000 to 100,000, and a molecular weight of 1,000,000 to 100,000. 10 million polyacrylamide, molecular weight 10
There are 10,000 to 700,000 polyoxyethylene derivatives such as polycotylene oxide and paraffinsulfonic acid derivatives.

A suitable amount of the fiber protective agent is 2-3 g / l. Water. If it is less than 2 g, the effect of protecting animal fibers is insufficient, and if it is more than 3 g, the effect is not particularly improved.

The aqueous finishing agent has the following general formula:

[0015]

Embedded image

An emulsion or aqueous solution of silicone having dimethyl silicone (-X in the above formula is -CH
₃ ), amino-modified silicone (-X in the above formula is -RN
H ₂ or RNHR ⁰ NH _2), epoxy-modified silicone (-X is -R- (Epoxy)), polyether-modified silicone (-X is _{-RO- (EO) a (PO)} b H), carboxyl-modified silicone ( -X is -RCOOH). A mixture of these silicone-based emulsions or aqueous solutions and water-soluble polymer compounds such as polyoxyethylene alkyl ether, polyvinyl alcohol, and polyvinyl acetate may be used. In addition to the silicone emulsion or aqueous solution, an oil / fat softener quaternary ammonium salt or the like can be used in combination.

The appropriate amount of the water-based finishing agent varies depending on the type and the type and shape of the animal fiber, but is preferably about 0.75 to 1.5% by weight of the fiber to be washed.
If it is less than 0.75%, the finishing effect is insufficient, and
If it is used in excess of%, it becomes too flexible to cause inconvenience, or rather unpleasant touch.

The aqueous cleaning method for an animal textile product according to the present invention is also characterized in that the aqueous cleaning liquid and the aqueous finishing agent have a P
H is 8 or less. When the pH is 8 or more, smelted silk, defatted wool, clothing containing a large amount of animal hair fibers, and the like tend to be felted or shrunk.

In the aqueous cleaning method for an animal fiber product according to a third aspect, an organic solvent is dispersed in the surfactant and is contained in the aqueous cleaning liquid. By using a two-phase detergent containing an organic solvent, for example, a hydrocarbon-based solvent, a fluorocarbon-based solvent, or the like, in addition to the detergency for water stains, the detergency for oily stains is further increased.

[0020] In a fourth aspect of the present invention, there is provided an aqueous cleaning method for animal textile products, wherein the aqueous cleaning solution contains a dye transfer inhibitor. The presence of the dye transfer inhibitor makes it possible to wash a color product, a white product, a light-colored product and the like together. In the dye transfer inhibitor, for example, polycarboxylate, polyvinylpyrrolidone,
Polyoxyethylene alkyl ether sulfate,
An aqueous solution of polyoxyethylene alkyl phenyl ether sulfate or polyoxyethylene alkyl phenyl ether alone or in combination. A suitable amount of the dye transfer inhibitor is 2-3 g / l. Water.
If it is less than 2 g, the effect of preventing dye transfer is insufficient, and if it is used more than 3 g, the effect does not change.

[0021] The method for washing an animal textile product in water according to claim 5 is a fully automatic washing and dewatering step in which the washing step, the rinsing step, the treating step with the aqueous finishing agent, and the dewatering step are carried out. Made by machine. Many automatic washing and dehydrating machines are widely used and are most suitable for implementing this washing method, and thus contribute to labor saving in washing animal fiber products without special investment.

In the water-based cleaning method for an animal fiber product according to the present invention, the finished fiber product is dried by a tumbler dryer. Although this washing method is a method of washing with an aqueous system, it does not employ natural drying, and even if it is forcedly dried by a tumbler dryer, the shape of clothes and the like is not deformed or wrinkled, so that the efficiency of the washing operation is improved.

[0023]

According to the cleaning method of the present invention, regardless of the shape of the above-mentioned animal fiber product, if it is a garment, for example, a coat, a suit, pants, a skirt, a dress, a sweater, a shirt, For scarf, kimono, non-clothing, for example, blanket, futon, stuffed animal, carpet,
Products of all shapes, such as ties and handkerchiefs, can be washed with existing fully automatic washing and dewatering machines.

Specifically, a necessary amount of water is filled in an existing fully automatic washing and dehydrating machine, and a detergent consisting of a surfactant and an auxiliary is added in an amount of 1 to 3 g per liter of water (1 g for powder detergent, 1 g for liquid detergent). Dissolve 3 g of a detergent, 2 to 3 g of a fiber protective agent, and 2 to 3 g of a dye transfer inhibitor. Next, the animal fiber product is put into the cylinder, the rotation speed of the cylinder is adjusted to an appropriate rotation of 20 to 30 rpm according to the type of the fiber product, and the cylinder is rotated for a necessary time to perform washing. Rinse and lightly dehydrate. Here, a liquid obtained by diluting an aqueous finish of 0.75 to 1.5% with respect to the weight of the product being washed with water is introduced into the machine. The cylinder is rotated to thoroughly mix the washed and dehydrated animal fiber product with the aqueous finish, and then dehydrated.

The load (the amount of animal fiber products to be washed) is desirably up to about 60% of the standard load (about 50 kg or less for ordinary equipment) of the fully automatic washing and dehydrating machine used. It is necessary that the water level is treated at a medium to high water level and the object to be washed is always immersed. The injection and drainage of each step are performed while the rotation of the cylinder is stopped. Washing rotates for a certain time,
Intermittent washing that stops for a certain period of time is preferable. Dehydration is performed at medium speed (about 600 rpm) to high speed (about 800 rpm) for 3 to 5 minutes.

The animal fiber product which has been treated with the finishing agent and thus dehydrated can be completely dried with a tumbler dryer. Of course, after dehydration, natural drying, semi-drying for about 10 minutes at 50 ° C (or 5 minutes at 60 ° C) using a tumbler dryer, and then, if necessary, shaping the form with a human body press with a known structure, etc. Can be naturally dried. After natural drying and semi-drying, it can be dried in a drying room and then in a steam box. It is desirable that the outerwear, coats and suits of special fabrics be formed by a human body press, air-dried, and finally dried in a steam box. A knitted fabric such as a sweater is almost dried by natural drying, and then finished and dried in a tumbler.

[0027]

Embodiments of the present invention will be described below in detail.

Embodiment 1 FIG. A detergent, a fiber protective agent, a dye transfer inhibitor, and an aqueous finish having the following composition were prepared.

Detergent Lauryl alcohol ethylene oxide 7 mol adduct (nonionic surfactant) 15% Lauryl sulfate sodium salt (anionic surfactant) 5% tap water Balance Fiber protection lanolin fatty acid ethylene oxide 30 mol adduct 25% tap water balance ・ Dye transfer inhibitor sodium polyacrylate (molecular weight 15000) (polycarboxylate) 5% dodecylphenol EO 20 mol adduct 15% tap water balance ・ water-based finish aminosilicone 15% nonylphenol ethylene oxide 10 mol Additives (nonionic activator) 5% tap water balance A. (Applying the present invention) The detergent prepared above (1.5
g / water 500 ml), fiber protective agent (1.0 g / water 500 m)
l), a dye transfer inhibitor (1.0 g / 500 ml of water) was placed in a tergotometer (manufactured by Daiei Kagaku Seiki Seisaku-Sho, Ltd.), and a washing test cloth was washed for 7 minutes at 40 rpm at 35 ° C. The water is tap water. Washing test cloth is 5 × 5cm
EMPA101 artificial contamination cloth for cleaning judgment (EM of Switzerland
PA, olive oil, carbon black attached),
A 10 × 10 cm wool muslin cloth, a 10 × 10 cm cotton broad cloth, and a 10 × 10 cm discolorable towel (100% cotton reactive dye red) sewn on a 10 × 10 cm cotton broad cloth 10 × 10 cm Each one was used. After the rinsing, the aqueous finish prepared above (0.5 g / 500 ml of water) was added, and the rotation speed was set to 40 rp.
m, and a finishing treatment was performed at 35 ° C. for 1 minute. This was subjected to centrifugal dehydration (100% squeezing ratio) to obtain a washed test cloth group A.

B. (Applying the present invention) The detergent prepared above (1.5 g / 500 ml of water), the fiber protective agent (1.0 g)
/ 500 ml of water), and washing and finishing were performed under the same conditions as in A above, to prepare a washed test cloth group B. That is, it is different from A only in that no dye transfer inhibitor is used.

C. (Not applicable to the present invention) Using the detergent prepared above (1.5 g / 500 ml of water), washing and finishing were carried out under the same conditions as in A above, and a washed test cloth group C was prepared. That is, it is different from A in that a fiber protective agent and a dye transfer inhibitor are not used. It differs from B only in that no fiber protective agent is used.

D. (Not applicable to the present invention) The detergent prepared as described above (1.5 g / 500 ml of water), a fiber protective agent (1.0
g / water (500 ml), washed under the same conditions as in A, rinsed, and immediately dehydrated to prepare a test cloth group D. That is, it differs from B only in that no aqueous finish is used.

The washed test cloth groups A, B, C, and D prepared as described above were evaluated for detergency, change in form, generation of wrinkles, and occurrence of dye transfer. The results are listed in Table 1.

The detergency evaluated by EMPA101 was determined by measuring the reflectance of the obtained cleaning cloth with CP6 manufactured by Nippon Denshoku Industries Co., Ltd.
Measured with a -10 reflectometer, the following formula

[0035]

(Equation 1)

The cleaning efficiency was measured, and the cleaning efficiency of 20% or more is indicated by ○, 10 to 20% by Δ, and less than 10% by X.

The evaluation of the morphological change by wool muslin cloth was as follows: を when the dimensional change was 0.5 cm or less, Δ for 0.5 to 1 cm,
1 cm or more is indicated by x.

The evaluation of the occurrence of wrinkles by the cotton broad cloth is indicated by ○ when wrinkles are not noticeable, Δ when wrinkles are slightly noticeable, and x when wrinkles are noticeable.

In the evaluation of the dye transfer using a cotton broad cloth sewn with a towel, no transfer was observed.

[0040]

[Table 1]

As can be seen from Table 1, the test cloth group A using the detergent, the fiber protective agent and the dye transfer inhibitor and using the water-based finishing agent was excellent in all the evaluation items. Test cloth group B using a detergent and a fiber protective agent and using a water-based finishing agent
Other items were excellent except for the item of dye transfer. Therefore, it was found that there was no problem if the color product and the white or light-colored product were separately washed. The test cloth group C using a detergent and a water-based finishing agent, and the test cloth group D using a detergent and a fiber protective agent and not using a water-based finishing agent have morphological changes and wrinkles. Evaluation is not good.

Example 2 Using the detergent, the fiber protective agent, the dye transfer inhibitor and the aqueous finish of Example 1, actual clothing was tested. The evaluation was performed up to ironing or press finishing to confirm the morphological change, the presence or absence of dye transfer, the texture, and the finishing workability.

The laundry tested was three suits up and down (material: 100% wool), two suits up and down (material: wool / polyester fiber blend), two sweaters (material: wool 100)
%) And four polo shirts (material: 100% cotton), for a total weight of 12 kg. These laundry items were washed with a commercial fully automatic washing and dehydrating machine (WI-220, manufactured by Tokyo Electrostatic Machine Co., Ltd.) having a standard load of 20 kg and a detergent of 300 g and a fiber protective agent of 200.
g, 200 g of dye transfer inhibitor, medium water level, and washed at 35 ° C. for 7 minutes. After draining, the water was raised to a high water level, rinsed at room temperature for 1 minute, and then drained. Next, water was poured into the medium water level, 120 g of a water-based finish was added, and a finish treatment was performed at 35 ° C. for 1 minute. After drainage, dehydration was performed at high speed for 3 minutes. The rotation of the cylinder of the washing machine for washing, rinsing, and finishing agent processing is intermittent rotation of 1 second rotation (20 rpm) -stop for 2 seconds, and the cylinder is stopped at the time of pouring / draining.

The five suits of the suit, which had been washed, finished and dehydrated, and the four polo shirts were dried at 50 ° C. for 10 minutes by a tumbler dryer and then suspended on a hanger and dried naturally. In a slightly damp state, the business suit was ironed and the pants were ironed and pressed. The polo shirt was finished by ironing. The five sweaters that had been washed, finished, and dehydrated were dried almost completely by natural drying, and then completely dried by a tumbler dryer.

A business suit 5 with all these steps completed
Wearing, four polo shirts and five sweaters had no change in morphology or migration, and maintained a new feeling. The texture was good with moderate flexibility and smoothness. Regarding the finishing workability, particularly with regard to the suit, the wrinkle of the backing material was small, and the spreadability with the iron at the time of finishing was good. The finished state was no inferior to the dry-cleaned one. In the washing test, wool products and cotton products were washed together, but no problem occurred.

[0046]

As described above in detail, according to the aqueous cleaning method for animal fiber products to which the present invention is applied, pure wool clothing and the like can be washed in an aqueous system using an existing fully automatic washing and dewatering machine. Also, it can be dried with the existing tumbler dryer,
Finishing work efficiency can be improved. Moreover, compared to dry cleaning, the finish is as good as possible in all aspects such as washability, shape loss, wrinkles, shrinkage, and the garment does not lose its new feeling.

Therefore, the method of the present invention is a water-based cleaning method which can be replaced with dry cleaning which has been essential in cleaning animal fiber products and which is extremely excellent in safety and economy. Vegetable fiber products such as hemp or other synthetic fibers which have been conventionally considered suitable for aqueous washing can be washed together.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI D01C 3/00 D01C 3/00 B D06L 1/12 D06L 1/12

Claims (6)

[Claims] 1. A method for cleaning textile products containing animal fibers, wherein at least a nonionic surfactant and / or
And an anionic surfactant and at least one fiber protecting agent selected from a lanolin derivative, a polycarboxylate, a polyacrylamide derivative, a polyoxyethylene derivative, a paraffinsulfonic acid derivative, and the like, in an aqueous cleaning solution in which the fiber product is dissolved. And washing with a water-based finish having at least one type of silicone selected from dimethyl silicone, amino-modified silicone, epoxy-modified silicone and polyether-modified silicone. 2. The P of the aqueous cleaning solution and the aqueous finishing agent.
The cleaning method according to claim 1, wherein H is 8 or less. 3. The cleaning method according to claim 1, wherein an organic solvent is dispersed by the surfactant and contained in the aqueous cleaning liquid. 4. The cleaning method according to claim 1, wherein the aqueous cleaning solution contains a dye transfer inhibitor. 5. The method according to claim 1, wherein the washing step, the rinsing step, the treating step with the aqueous finishing agent, and the dewatering step are performed by a fully automatic washing and dewatering machine. Cleaning method. 6. A cleaning method according to claim 1, wherein the finished fiber product is dried by a tumbler dryer.