JPH0112873B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a method for improving the fastness of wool dyed products, and more particularly to a method of improving the wet rub fastness of wool dyed products subjected to flame retardant treatment. [Prior art] Wool contains the sulfur element and generates nonflammable sulfur dioxide gas when burned, so it has self-extinguishing properties, is rich in heat retention and moisture absorption, and the scale on its surface is antifouling. It has superior properties compared to other natural fibers and synthetic fibers, and its self-extinguishing properties have led to demand year after year for its use as a raw material for interior materials for vehicles and aircraft, which require flame retardancy. is increasing. Interior materials are required to have colorful and vivid colors, and since the seat materials of vehicles and aircraft are constantly in contact with the skin, strong color fastness is required. As a method for improving washing fastness (wet fastness), Japanese Patent Publication No. 59-12793 (Japanese Patent Publication No. 55-45860)
There is a method disclosed in Further, as a method of improving the wet rubbing fastness without impairing the light fastness, there is a method of applying a water repellent such as paraffin or silicon to a wool dyed product. In addition, "washing fastness (wet fastness)" referred to here
means the fastness specified in JIS-L-0844, and "wet rubbing fastness" means the fastness specified in JIS-L-0849. [Problem to be solved by the invention] The dyeing method according to Japanese Patent Publication No. 59-12793 (Japanese Patent Publication No. 55-45860) dyes with an anionic dye, then dyes polyamine,
It is treated with a cationic compound and at least one dye fixing agent that does not have a reactive group selected from polycations, tannins, and syntanes,
Since the applicable dyes are limited to anionic dyes, it is difficult to obtain colorful and vivid dyed products, and even if the washing fastness (wet fastness) (JIS-L-0844) has been improved, the wet rubbing fastness (JIS- No satisfactory results were obtained for L-0849). Furthermore, interior materials for aircraft bases are required to have a high degree of flame retardancy, and even though wool has self-extinguishing properties, it requires flame retardant treatment. In the method of improving wet abrasion fastness, these water repellents impair wool's inherent self-extinguishing properties and impede the flame retardant treatment effect. For this reason, in the conventional technology, wool can be used without impairing its self-extinguishing properties and its light fastness (JIS-L-
0842) and washing fastness (JIS-L-0844) as well as wet rubbing fastness (JIS-L-0849), it has a color fastness of class 4 to 5 like synthetic fibers, and has colorful and vivid colors. In particular, dyeing to dark blue or orange colors, which are close to the primary colors, was considered difficult. Furthermore, as described in JP-A-56-15471, cellulose fibers previously dyed with anionic dyes are treated with a cationic dye fixing agent and then further treated with an anionic substance to prevent the adhesion of anionic contaminants. Antifouling treatment methods to prevent staining are also known. However, applying cationic and anionic substances to fibers in this way does not improve the wet abrasion fastness, especially the wet abrasion fastness of wool. This is not to say that the processing effect is not impaired. [Purpose of the Invention] Therefore, the present invention aims to improve the unique characteristics and light fastness of wool, especially the wet rubbing fastness without impairing the flame retardant treatment effect, and to obtain wool dyed products with colorful and vivid primary colors. With the goal. [Structure of the Invention] The present invention achieves the above object by applying a sulfosuccinic acid ester and a dimethylamine epichlorohydrin polymer to a dyed wool product in separate steps, drying and heat treatment to fix them to the wool. It is characterized by: In this case, acid dyes such as metal-containing complex dyes, mordant dyes, reactive dyes, and disperse dyes are used in the conventional manner for dyeing wool. Examples of sulfosuccinates include dialkyl sulfosuccinate salts, sulfosuccinate salts, sulfotricarballylic acid trihexyl ester salts, and octadecyltetrasodium (1-2) dicarboxyester sulfosuccinates represented by the following general formula. , one or more of them may be used in combination and applied in an amount of 0.5 to 5% by weight to the wool. Dialkyl sulfosuccinate salt R′, R″; 2-ethylhexyl-based alkyl group sulfosuccinate salt R; alkyl group sulfotricarballylic acid trihexyl ester salt Octadecyltetrasodium (1,2) dicarboxyester sulfosuccinate R: Alkyl group Among these, the most effective one is Prefix "Z" (manufactured by Shinyo Co., Ltd., trade name) whose main component is dialkyl sulfosuccinate salt.
is recommended. Dimethylamine epichlorohydrin polycondensate is represented by the following general formula, and it is mixed with wool by
It is preferable to add 6% by weight. X: Halogen n: Degree of polymerization (integer) In this case, a quaternary ammonium salt can also be added, and the quaternary ammonium salt is 2-oxyethyltrimethylammonium methosulfate methacrylate represented by the following general formula. It is preferable to use an ate compound or a diallyldimethylammonium chloride polymer (including a sulfur trichloride copolymer). 2-Methacrylic acid oxyethyltrimethylammonium methosulfate compound Diallyldimethylammonium chloride polymers (including sulfur trichloride copolymers) A specific example of the dimethylamine epichlorohydrin polycondensate is "SY" prefix "RV" (trade name) manufactured by Shinyo Co., Ltd. Sulfosuccinate ester and dimethylamine epichlorohydrin polymer are produced by first applying a sulfosuccinate ester solution to a dyed wool material and then heating it at 100°C.
Dry in the following low temperature range, then apply a solution of dimethylamine epichlorohydrin polymer to 100%
It is applied by drying and heat treatment in a high temperature range above ℃. Whether or not a wool dyed product has been treated in accordance with the present invention can be easily determined by a comparative test of wet rubbing fastness or by IR spectrum analysis of sulfosuccinic acid ester and dimethylamine epichlorohydrin polymer. I can do it. The treatment liquid of these sulfosuccinate and dimethylamine epichlorohydrin polymers is applied to the dyed wool material by a dipping method, a pad method, a spray method, a coater method, a printing method, etc. The dyed wool product may be in the form of a fiber web, that is, raw wool, thread, or a fabric such as woven fabric, knitted fabric, or non-woven fabric, or may be in the form of a mixture of wool and other fibers. It may be of. These wool dyed products to which the present invention is applied may be flame-retardant treated, and in that case, the recommended flame-retardant treatment method is zirconium and organic chelate as disclosed in JP-A-47-30998. Method of imparting a complex with an agent or fluorine ion, JP-A-1973-
A method of imparting a complex of a titanium compound with an organic chelating agent or fluorine ion disclosed in No. 8897,
There is also a method of imparting a tungsten anion complex under acidic conditions, as disclosed in JP-A-50-40900. Among these methods, the most advantageous flame retardant treatment method for the present invention is the method disclosed in JP-A-47-30998. [Effects of the Invention] According to the present invention, even wool dyed products dyed in dark blue or orange colors, which are close to the primary colors that were conventionally considered to be unsuitable as interior materials for vehicles and aircraft due to poor wet friction fastness, can be improved in light fastness and colorfastness. The wet rubbing fastness is improved without impairing the dry rubbing fastness, and the color saturation becomes more vivid. Although the reason is not necessarily clear, the sulfosuccinic acid ester and the dimethylamine-epichlorohydrin polymer form a complex film that is poorly soluble in water due to the difference in ionicity, and the complex film forms a cationic film that is usually used as a dye fixing agent. This is thought to be due to the fact that it adheres to wool more strongly than a synthetic material film. This effect also occurs on dyed wool that has been subjected to flame retardant treatment, without interfering with the effect of the flame retardant treatment. Therefore, according to the present invention, it is possible to obtain a wool dyed product which has excellent light fastness, wet abrasion fastness and dry abrasion fastness, has a high degree of flame retardancy, and is brightly colored and suitable for interior materials of vehicles and aircraft, especially sheet fabric. . [Example] Wool spun yarn (count: 2/20) was dyed with reactive dyes (C, I, Reactive Red 116, 1.8% o, w,
f and (C, I, Reactive Yeiiow 39・1.2%
After dyeing in accordance with a conventional method using zirconium chloride, citric acid (organic chelating agent) and hydrochloric acid, the sample was immersed in an acidic bath and boiled, washed with water and dehydrated for flame retardant treatment. Next, the surfactant was immersed and squeezed into an aqueous solution of Prefix "Z" (sample product by Shinba Co., Ltd.), an anionic surfactant whose main component is dialkyl sulfosuccinic acid ester salt, to reduce the concentration of the surfactant to 3% o, w, f. The wool fabric was woven with the obtained wool spun yarn to a weight of 350 g/m ² by humidifying it at 60℃ for 10 minutes, dehydrating it and drying it at 100℃ for 7 minutes. Immersion in an aqueous solution of the cationic dye fixing agent "SY" and prefix "RV" (sample product of Shinha Co., Ltd.) whose main component is a condensate.
Squeeze the liquid and apply the fixing agent at 4% o, w, f,
It was finished by dry heat treatment at 110°C for 5 minutes. [Conventional example] A wool fabric woven to a basis weight of 350 g/m ² using the wool spun yarn immediately after flame retardant treatment in the above example,
3 parts by weight of polyamine fixing agent (manufactured by Meisei Chemical Co., Ltd., trade name "Fix Oil 737"), 0.5 parts by weight of polyamide epichlorohydrin resin (product of Nitto Denko Corporation), 0.1 part by weight of sodium bicarbonate, and
Add 0.3 o, w, f of the treatment agent (solid content) by immersing and squeezing in a chemical aqueous solution composed of 96.4 parts by weight of water, heat dry at 110°C, and heat at 150°C for 3 minutes. Finished by processing, washing with water and drying. [Effect Confirmation Test] The dyed wool products according to the above examples and conventional examples were tested for fastness and flame retardancy, and the results shown in the following table were confirmed. The untreated test piece used was a wool fabric woven with a fabric weight of 350 g/m ² from the wool spun yarn immediately after the flame retardant treatment in the example.

[Table] Flame retardancy test method; Based on the Ministry of Transport standards in accordance with JIS-L-1091 (A-4, Flammability test method for textile products), a textile test piece with a width of 51 mm and a length of 304 mm was measured on one short side. (width)
is sandwiched between two open U-shaped metal plates, and the open end of the test piece is hung vertically with the open end facing downward, with the lower end of the test piece and the tip of the burner separated by 19 mm. A Bunsen burner (fire source) with a flame length of 38 mm was used for 12 seconds, then the fire source was removed, and the combustion length in the height direction from the bottom of the test specimen was determined (standard;
200mm), afterburning time (standard: 15 seconds), and afterflame time of the droplet from the test piece (standard: 5 seconds). Light fastness test method; JIS-L-0842 (40 hours irradiation)
Dry rubbing fastness test method according to JIS-L-0849; Washing fastness (wet fastness) test method according to JIS-L-0849; JIS-L-
The above test results according to 0844 mean that the degree of stain resistance and discoloration of the wool and cotton cloth of the cloth and the test piece (cloth) were all judged to be grade 5. As described above, according to the present invention, the wet rubbing fastness was improved.

Claims (1)

[Scope of Claims] 1. A method for improving the fastness of a dyed wool product, in which a sulfosuccinic acid ester and a dimethylamine epichlorohydrin polymer are separately applied to the dyed wool product, dried, and fixed to the wool by heat treatment. 2. The wool dyed material according to claim 1 above is subjected to flame retardant treatment by imparting a complex of zirconium and an organic chelating agent or a fluorine ion, or a complex of zirconium and an organic chelating agent and a fluorine ion. A method for improving the fastness of a wool dyed product according to claim 1, which is a method for improving the fastness of a wool dyed product.