JP2009242990A - Wrinkle-removing agent composition for fiber product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wrinkle-removing agent composition for a fiber product which can enough remove the wrinkles of the fiber product, when and after the fiber product is washed, and to provide a method for removing the wrinkles of the fiber product. <P>SOLUTION: Provided are the wrinkle-removing agent composition for the fiber product which contains cellulose fibers having an average fiber diameter of not more than 200 nm and a carboxyl group content of 0.1-2.0 mmol/g; and a method for removing the wrinkles of the fiber product which includes treating the fiber product with the wrinkle-removing agent composition for the fiber product, before the fiber product is washed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wrinkle remover composition for textiles for removing wrinkles from textiles and a method for removing wrinkles from textiles.

  In general, wrinkles occur when washing textiles such as clothing. In order to remove the wrinkles, processing such as ironing and steam press is performed. However, it takes time and may damage the texture. Therefore, various detergent compositions and finish compositions for removing wrinkles during washing have been proposed.

For example, Patent Document 1 discloses a liquid finish composition containing a specific modified silicone. Patent Document 2 discloses a detergent composition containing a cyclic amine polymer, a hydrophobic modified cellulose polymer, and the like. Patent Document 3 discloses a finish containing an amino-modified silicone and a nonionic surfactant having a melting point of room temperature or higher. Patent Document 4 discloses a spray processing agent containing an oil agent having a melting point of 50 ° C. or lower. However, in these methods, since the texture of the clothing fiber is impaired or the wrinkle removal property is insufficient, a more excellent method is required.
JP 2000-110075 A JP 2002-536535 A JP 2006-176920 A JP 2007-239117 A

  The subject of this invention is providing the wrinkle removal agent composition for textiles which can fully remove the wrinkles of the textiles at the time of washing and after washing, and the wrinkle removal method of textiles.

  The present invention relates to a wrinkle remover composition for fiber products containing cellulose fibers having an average fiber diameter of 200 nm or less and a carboxyl group content of 0.1 to 2.0 mmol / g, and the wrinkle remover for fiber products. Provided is a method of removing wrinkles from a textile product, wherein the composition is processed into a textile product before washing.

  By this invention, the wrinkles of the textile product at the time of washing and after washing can be sufficiently removed.

[Cellulose fiber]
The cellulose fiber used in the present invention has an average fiber diameter of 200 nm or less, preferably 1 to 200 nm, more preferably 1 to 100 nm, and still more preferably 1 to 50 nm.

  The cellulose fiber used in the present invention has a carboxyl group content of 0.1 to 2.0 mmol / g, preferably 0.4 to 2.0 mmol / g, more preferably 0.6. -1.8 mmol / g. Carboxyl group content is calculated | required by the measuring method described in the Example. In addition, when the carboxyl group content is 0.1 mmol / g or more, the average fiber diameter of the cellulose fibers becomes 200 nm or less after the fiber refining treatment described later.

  The cellulose fibers used in the present invention preferably have an average aspect ratio (average fiber length / average fiber diameter) of 10 to 5,000, more preferably 10 to 2,000, still more preferably 10 to 1000, and even more. Preferably it is 10-500. The average fiber diameter, average fiber length, and average aspect ratio are obtained by the measurement methods described in the examples.

  The cellulose fibers used in the present invention are preferably those obtained by oxidizing and refining raw cellulose fibers in the presence of a catalyst containing an N-oxyl compound, and further water dispersion of cellulose fibers dispersed in water. The body is preferred. Such cellulose fibers can be produced, for example, by a method including the following steps (i) to (iii).

Step (i): Step of obtaining a slurry from raw material cellulose fibers In this step, about 10 to 1000 times the amount (mass basis) of water is added to a molded body containing cellulose fibers as a raw material (absolute dry basis), The slurry is processed with a mixer or the like. Here, the absolute dry standard is to calculate the absolute dry cellulose fiber amount from the moisture content of the cellulose fiber naturally dried in an environment of 20 ° C. and 50% RH measured with a halogen moisture meter.

  Examples of the molded body containing cellulose fibers as a raw material include sheets containing wood pulp, non-wood pulp, regenerated cellulose, bacterial cellulose, cotton and the like. The size and shape of the molded body are not particularly limited, but the thickness is preferably 0.01 to 10 mm, more preferably 0.03 to 3 mm, and still more preferably 0.05 to 1 mm. A sheet-like molded body is preferable.

Step (ii): Step of oxidizing the slurry obtained in step (i) In this step, the slurry obtained in step (i) is oxidized using an oxidation catalyst solution containing an N-oxyl compound. . As an oxidation catalyst solution containing an N-oxyl compound, a solution or suspension containing an N-oxyl compound, another oxidizing agent and a halide is used.

  As the N-oxyl compound, for example, 2,2,6,6, -tetramethyl-1-piperidine-N-oxyl (TEMPO) can be used. The amount of the N-oxyl compound used is preferably in the range of about 0.1 to 30% by mass with respect to the raw material cellulose fiber (absolute dry basis). The concentration of the N-oxyl compound in the oxidation catalyst solution is preferably in the range of 0.001 to 30% by mass.

  Examples of other oxidizing agents used in this step include halogen, hypohalous acid, halous acid, perhalogen acid or salts thereof, halogen oxide, nitrogen oxide, peroxide, etc. Sodium hypochlorite is preferred. The amount of the other oxidizing agent used is preferably in the range of about 1 to 50% by mass with respect to the raw material cellulose fiber (absolute dry basis).

  The halide used in this step is preferably bromide or iodide, and examples thereof include alkali metal bromide and alkali metal iodide, and sodium bromide is preferable. The amount of the halide used is preferably in the range of about 1 to 30% by mass with respect to the raw material cellulose fiber (absolute dry basis). The concentration of the halide in the oxidation catalyst solution is preferably in the range of 0.01 to 30% by mass.

  It is preferable to use water as the solvent of the oxidation catalyst solution, and from the viewpoint of reducing the surface tension of the oxidation catalyst solution and facilitating the penetration into the raw material cellulose fiber, it contains alcohols such as methanol and ethanol, and various surfactants. Can be made. The alcohol is preferably a secondary or higher alcohol from the viewpoint of reactivity. This is because when the primary alcohol is used, the oxidation catalyst solution and the primary alcohol itself may react.

  When a mixture of water and an organic solvent such as ethanol is used as the solvent for the oxidation catalyst solution, the content of the organic solvent is preferably 5 to 80% by mass, more preferably 10 to 60% by mass, and further 20 to 50% by mass. preferable.

  The pH of the oxidation catalyst solution is preferably in the range of 9 to 12 from the viewpoint of allowing the oxidation reaction to proceed efficiently. The temperature (temperature of the slurry) and time for the oxidation treatment are 1 to 50 ° C., and preferably 1 to 300 minutes. In the oxidation treatment, it is preferable to contact the raw material cellulose fiber and the oxidation catalyst solution by mechanical operation. The mechanical operation referred to in the present invention means giving mechanical motion to the raw cellulose fibers or the oxidation catalyst solution by stirring or the like.

  And the used catalyst etc. can be removed by water washing etc., and the fibrous or powdery intermediate body which was dried as needed can be obtained.

Step (iii): Step of refining the fibrous or powdery intermediate obtained in step (ii) In this step, the intermediate obtained in step (ii) is dispersed in a solvent such as water. Then, refinement processing is performed. Fine processing is desired using a disaggregator, a beating machine, a low pressure homogenizer, a high pressure homogenizer, a grinder, a cutter mill, a ball mill, a jet mill, a short screw extruder, a twin screw extruder, an ultrasonic stirrer, a domestic juicer mixer, etc. The fiber width and length can be adjusted.

  By such refinement treatment, cellulose fibers having an average fiber diameter of 200 nm or less can be obtained, and more preferably, cellulose fibers having an average aspect ratio of 10 to 5,000 can be obtained.

  Then, it is washed with water as necessary, and is in the form of a suspension (a visually colorless transparent or opaque liquid) or a powder that is dried as necessary (however, it is fibrous and does not mean grains) ) Cellulose fibers can be obtained.

  In addition, when making into suspension, what used only water may be used, and the mixed solvent of water, other organic solvents (for example, alcohol, such as ethanol), surfactant, an acid, a base, etc. was used. It may be a thing. By such oxidation treatment and refinement treatment, the C6 position of the cellulose structural unit is selectively oxidized to a carboxyl group, and the average fiber diameter of cellulose having a carboxyl group content of 0.1 to 2.0 mmol / g is obtained. A refined cellulose fiber of 200 nm or less can be obtained. Then, by adjusting the oxidation treatment conditions, the carboxyl group content is increased or decreased within a predetermined range, the polarity is changed, the electrostatic repulsion of the carboxyl group or the above-described refinement treatment, The average fiber diameter, average fiber length, and the like can be controlled. Moreover, since the said cellulose fiber has the said carboxyl group, since the electrostatic repulsion force between fibers becomes strong, the dispersibility of the aqueous dispersion of a cellulose fiber is favorable. Good dispersibility here means that the refined cellulose fiber having an average fiber diameter of 200 nm or less hardly aggregates and settles in the dispersion. Dispersibility is confirmed by visual observation of the aqueous dispersion.

  The untreated cellulose fiber aqueous dispersion is a state in which aggregates of cellulose fibers are dispersed, and aggregates and precipitates are confirmed by visual observation. On the other hand, the cellulose fiber used in the present invention is a fine structure having an average fiber diameter of 200 nm or less, and the structure is uniformly dispersed in water without agglomeration. Not.

[Wrinkle remover composition]
The wrinkle remover composition of the present invention contains cellulose fibers having an average fiber diameter of 200 nm or less and a carboxyl group content of 0.1 to 2.0 mmol / g. The wrinkle remover composition of the present invention 0.01-10.0 mass% is preferable and, as for content of the cellulose fiber concerning this invention in a thing, 0.1-5 mass% is still more preferable.

  In the wrinkle removing composition of the present invention, the remainder other than the cellulose fiber according to the present invention is preferably water.

  In the wrinkle remover composition of the present invention, as a compound generally known to exhibit a wrinkle reducing effect, for example, dimethylpolysiloxane, silicone such as modified silicone substituted with amino group or polyether group, etc. It is also possible to use a compound or the like for the purpose of enhancing the performance.

  In the wrinkle remover composition of the present invention, polyhydric alcohol, various solvents, gelling agents, salts such as salts and sodium sulfate, antioxidants, preservatives, and bactericides, as long as the effects of the present invention are not impaired. Other components such as antibacterial agents, fragrances, pigments, and UV absorbers can be added. Solvents include lower alcohols (2 to 4 carbon atoms) such as ethanol and isopropanol, polyhydric alcohols (2 to 12 carbon atoms) such as ethylene glycol, propylene glycol, glycerin and sorbitol, ethylene glycol and propylene glycol. Monoethyl or monobutyl ether, benzyl alcohol, benzyloxyethanol, phenolic ethylene oxide or propylene oxide adduct. Moreover, in order to mix | blend a cellulose fiber stably and to make a cellulose fiber adhere uniformly on a fiber product, you may contain a nonionic surfactant, a cationic surfactant, etc.

  2-10 are preferable and, as for pH at 25 degreeC of the wrinkle removal composition of this invention, 5-8 are still more preferable. Within this range, there is no change in the dispersion state of the cellulose fibers, and no aggregation or gelation occurs. The pH of the wrinkle removing composition of the present invention can be adjusted by adding an acid such as hydrochloric acid or an alkali such as sodium hydroxide.

  The wrinkle remover composition of the present invention may be used in any form such as liquid, gel, powder, and solid. When it is liquid, it can be used for textiles, particularly as a spray. The wrinkle remover composition of the present invention is preferably treated by adhering to a textile product before washing by spraying or the like.

[Wrinkle removal method]
The method for removing wrinkles of a textile product of the present invention is a method of treating the textile product before washing using a spray or the like on the textile product before washing.

  When processing the wrinkle removing composition of the present invention into a textile product, the composition of the present invention is filled in a mist type spray container as a liquid or water-based composition, and the spray amount per time is 0.1. It is preferable to use one adjusted to ˜1.0 mL. Examples of the spray container to be used include a trigger spray container (direct pressure or pressure accumulation type), a dispenser type pump spray container, and the like, and known spray containers can be used.

  The wrinkle removal method of the present invention can effectively remove wrinkles at the time of washing (after dehydration) or after washing of textile products.

  Unless otherwise indicated,% in the examples is% by mass. The average fiber diameter, average fiber length, average aspect ratio, and carboxyl group content of the cellulose fiber were calculated by the following methods.

(1) Average fiber diameter, average fiber length, and average aspect ratio In an image in which the diameter of cellulose fibers taken by an atomic force microscope (Veeco Dimension 3100 Tapping mode) can be confirmed, 50 or more points are extracted, and the fiber diameter and fiber length are extracted. The average fiber diameter, average fiber length, and average aspect ratio (average fiber length / average fiber diameter) were calculated.

(2) Carboxyl group content (mmol / g)
Take about 0.5g of absolute dry pulp in a 100mL beaker, add ion-exchanged water to make a total of 55ml, add 5ml of 0.01M sodium chloride aqueous solution to make 0.83% pulp suspension, and fully disperse the pulp Stir with a stirrer until Then, 0.1M hydrochloric acid is added to adjust the pH to 2.5 to 3.0, and then using an automatic titrator (AUT-501, manufactured by Toa DKK Co., Ltd.), a 0.05M sodium hydroxide aqueous solution is waited for 60 seconds. The electric conductivity and pH value of the pulp suspension every minute were measured, and the measurement was continued until the pH reached about 11. And the sodium hydroxide titration amount was calculated | required from the obtained electrical conductivity curve, and carboxyl group content was computed.

Production Example 1
As a cellulose fiber raw material, bleached kraft pulp of conifers (manufacturer: Fletcher Challenge Canada, trade name “Machenzie”, CSF 650 ml) was used.

  First, 3 g of the bleached kraft pulp of the above-mentioned coniferous tree was sufficiently stirred with 297 g of ion-exchanged water. Manufacturing company: Wako Pure Chemical Industries, Ltd., Cl: 5%) 14.2%, Sodium bromide (Manufacturing company: Wako Pure Chemical Industries, Ltd.) 12.5% are added in this order, and pH studs are added. The resultant was dropped with 0.5 M sodium hydroxide, the pH was maintained at 10.5 and the temperature was 20 ° C., and the oxidation reaction was performed for 60 minutes to obtain oxidized pulp.

  Next, the oxidized pulp was sufficiently washed with ion-exchanged water, dehydrated, and then naturally dried in an atmosphere at 23 ° C. Thereafter, 0.75 g of oxidized pulp and 99.25 g of ion-exchanged water were stirred for 10 minutes with a mixer (SM-KM36, manufactured by Sanyo Co., Ltd.) to carry out fiber refining treatment, and a translucent suspension Got.

  The amount of oxidized pulp (solid content concentration) in the obtained cellulose fiber aqueous dispersion was 0.75% (oxidized pulp 0.75 g / ion-exchanged water 99.25 g). The cellulose fibers had an average fiber diameter: 4.12 nm, an average fiber length: 614 nm, an average aspect ratio: 149, and a carboxyl group content of 0.92 mmol / g.

  Visual observation was performed on the cellulose fiber aqueous dispersion of the present invention that had been refined after the oxidation reaction, and the same concentration aqueous dispersion of cellulose fibers that had been subjected to the same refinement treatment without performing the oxidation reaction. . The aqueous dispersion of cellulose fiber of the present invention subjected to the oxidation reaction had a uniform appearance without aggregates and precipitates. On the other hand, cotton-like aggregates were confirmed in the unoxidized reactive cellulose fiber aqueous dispersion.

Examples 1-4 and Comparative Examples 1-4
As the wrinkle remover of the present invention, the cellulose fiber aqueous dispersion of the present invention obtained in Production Example 1 was used. As a comparative wrinkle remover, carboxymethyl cellulose (manufactured by Nippon Paper Industries Co., Ltd., Sunrose F30MC, viscosity 250 mPa S, substitution degree 0.75), wrinkle removability was evaluated by the following method using a female blouse (100% cotton) and a cut-and-sew (cotton knit 100%). The results are shown in Table 1.

<Wrinkle removability evaluation method>
(1) Adjustment of evaluation clothing Preliminary treatment of evaluation clothing was performed for the purpose of uniformizing the oil agent and fiber surface state adhering to new clothing. That is, a female blouse (100% cotton) and a cut-and-sew (cotton knit 100%) using a commercially available weak alkaline detergent (attack made by Kao Corporation) in a two-tank washing machine (Toshiba Galaxy VH-360S1) Washing was repeated once (detergent concentration 0.0667%, tap water (20 ° C.) 36 L was used, washing 10 minutes—dehydration 3 minutes—rinsing until no foam was present (flowing water rinsing water amount 15 L / min)) and air-dried.

(2) Wrinkle removal treatment for clothing
For the apparel for evaluation prepared by the method shown in (1), 0.25% of the cellulose fiber aqueous dispersion of the present invention was placed in a commercially available manual spray container (a Kasei Co., Ltd. Reshesh container). , And washed with water repeatedly and dried, and spray-applied so that the entire garment is uniformly processed (effective treatment concentrations are 0.25% owf and 0.375% owf). ). The treated clothing was hung on a hanger, hung in a temperature-controlled room (20 ° C., 40% RH) for 12 hours, and then naturally dried. For comparison, the garment was treated in the same manner using a 0.25% carboxymethyl cellulose aqueous solution and then naturally dried in the same manner.

  The clothes after drying were washed with water using a washing machine (MiNiMini Washer National NA-35, manufactured by Matsushita Electric Industrial Co., Ltd., operating time: 5 minutes). In this treatment method, the clothes to be put into the tank were one and 4 L of tap water (20 ° C.) was used.

  Then, it dehydrated for 5 minutes using the dehydration tank of the two-layer type washing machine (Hitachi Co., Ltd. PS-H35L). The treated clothing was hung on a hanger, hung in a temperature-controlled room (20 ° C., 40% RH) for 12 hours, and then naturally dried.

(3) Evaluation of wrinkle removal property Five panelists evaluated the wrinkle removal performance of the dry clothing treated by the above method. From the viewpoint of whether wrinkles were significantly reduced by using untreated for comparison, scoring (◯ to ×) was performed according to the following evaluation criteria.

Evaluation criteria (compared to untreated)
○: Improved.
Δ: The same.
X: It became worse.

Claims (6)

  A wrinkle remover composition for fiber products containing cellulose fibers having an average fiber diameter of 200 nm or less and a carboxyl group content of 0.1 to 2.0 mmol / g.   The wrinkle remover composition for textiles according to claim 1, wherein the average aspect ratio (average fiber length / average fiber diameter) of the cellulose fibers is 10 to 5,000.   The wrinkle remover composition for textiles according to claim 1 or 2, wherein the cellulose fiber is obtained by oxidizing and refining raw material cellulose fiber in the presence of a catalyst containing an N-oxyl compound.   The wrinkle remover composition for textiles according to any one of claims 1 to 3, wherein the cellulose fibers are dispersed in water.   The wrinkle removing composition for textiles according to any one of claims 1 to 4, which is a composition used when treating textiles before washing.   A method for removing wrinkles from a textile product, wherein the textile product before washing is treated with the wrinkle removing agent composition for textile products according to any one of claims 1 to 5.