JPS6320946B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention particularly relates to an article for treating textile products that can impart excellent flexibility and antistatic effect to textile products such as clothing and towels in a dryer. Conventionally, a common method for imparting flexibility to clothing has been to add a liquid fabric softener during the rinsing process of washing. However, with the spread of clothes dryers, from the viewpoint of simplifying washing operations and making effective use of fabric softeners, it is necessary to add flexibility and antistatic properties when putting damp clothes in the dryer after washing. Various types of softeners have been proposed in which an absorbent base layer is impregnated with a softening component. For example, an absorbent base layer with a specific absorption capacity is impregnated with a fabric softener having a melting point of 100~170〓 (Japanese Patent Publication No. 19594), a substrate such as a nonwoven fabric is coated with a wax-like substrate, and the outer layer is coated with a wax-like substrate. Covered with woven fabric softener (Special Publication No. 47-40120),
Furthermore, in order to improve usability by lowering the melting point of di-long-chain alkyl di-short-chain alkyl quaternary ammonium salt, which is one of the main fabric softeners, we developed a fatty polyhydric alcohol ester (Japanese Patent Application Laid-Open No. 118089-1989). This is an improved composition in which a melting point depressant such as lanolin alcohol or its aliphatic carboxylic acid ester (JP-A-52-124998) is used in combination. When these are used in a dryer, although they impart flexibility to clothing, they do not provide sufficient antistatic properties. Particularly in dryers, clothing made of synthetic fibers is significantly charged due to repeated friction between clothing, often causing discomfort to the user due to static electricity. In addition, these fabric softeners are different from liquid fabric softeners used during rinsing, in which the fabric softener is dispersed into fine particles in water and uniformly adheres to clothing, etc.; There is a drawback that the fabric softener comes into contact with the clothing and the fabric softener is directly attached to the clothing, so it tends to be uneven. Particularly, when clothes are stored for a long period of time after being processed in a dryer, there is a problem in that the unevenly adhered fabric softener parts change color and appear as yellow or other stains. Conventional methods were not sufficient in this respect either. Therefore, an object of the present invention is to provide an article for treating textile products, which can impart excellent flexibility and antistatic properties to clothing, and which can evenly adhere a softener to clothing, especially when used in a dryer. It provides: It has been discovered that the object of the present invention can be achieved by blending a cationic fiber softener and a specific fatty acid amide in a specific ratio and impregnating an absorbent material with the mixture. That is, the present invention provides (A) a cationic fiber softener and (B) the general formula () R ₁ CONH ₂ ... () (wherein R ₁ is an alkyl group or alkenyl group having 7 to 23 carbon atoms). Component (A) and component (B) are fatty acid amides represented by
This is an article for treating textile products, characterized in that it is impregnated with an absorbent material so that the content ratio (A)/(B) of Component (A) in the present invention is a cationic fiber softener, and any agent that can impart flexibility to fibers, such as various amine salts and quaternary ammonium salts, can be used. Among these, quaternary ammonium salts having two alkyl groups or alkenyl groups having 10 to 24 carbon atoms in the molecule are preferred, such as ammonium salts, amide ammonium salts, imidazo Examples include linium salts. (In the formula, R ₂ and R ₃ each have 10 to 24 carbon atoms.
an alkyl group, a hydroxyalkyl group or an alkenyl group, R ₄ and R ₅ are each an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group or a benzyl group, -(C ₂ H ₄ O) l ₃ (l ₃ = 1 to 5) A group represented by
Y ₁ and Y ₂ each represent an ethylene group or a propylene group, l ₁ and l ₂ represent a number of 0 or 1, and X represents a halogen or a monoalkyl sulfate group having 1 to 3 carbon atoms. ) Specifically, dilauryl dimethyl ammonium chloride, dipalmityl methyl hydroxyethylammonium methyl sulfate, dihydrogenated tallow alkyl dimethyl ammonium chloride,
Distearylmethylpolyoxyethylene (average degree of polymerization 5 moles) ammonium chloride, dihydrogenated beef tallow alkylethyl benzyl ammonium chloride, ditetracosyldimethylammonium chloride, di[(2-dodecanoylamino)ethyl]dimethylammonium chloride, di[ (2
-octadecanoylamino)propyl]dimethylammonium methyl sulfate, 2-heptadecyl-1-ethyl-1-[(2-octadecanoylamino)ethyl]imidazolinium ethyl sulfate, 2-pentadecyl-1-methyl- 1-
[(2-hexadecanoylamino)ethyl]imidazolinium methyl sulfate, etc., or a mixture of two or more thereof. Component (B) in the present invention is a fatty acid amide represented by the general formula (), specifically, lauric acid amide, myristic acid amide, stearic acid amide, beef tallow fatty acid amide, hydrogenated beef tallow fatty acid amide, oleic acid amide. It is one type or a mixture of two or more types of acid amide, coconut fatty acid amide, etc. Among these, fatty acid amides having 10 to 20 carbon atoms are preferred from the viewpoint of antistatic properties. The absorbent material in the present invention may be any material as long as it has a space within itself that can hold components (A) and (B). For example, paper, woven fabric, non-woven fabric, sponge, etc. Among these, nonwoven fabrics, sponges, etc. are preferred from the viewpoint of usability. Nonwoven fabrics include cellulose,
It is possible to use rayon or polyester fibers treated with a binder, polyolefin fibers mixed therein without using a binder, spunbond cloth, or the like. As a sponge,
Plastic homes such as polyurethane homes and polyester homes having open cells are preferred. In addition, flexible sheet-like materials are preferable from the viewpoint of manufacturing and use, especially with an apparent specific gravity of 0.01 to 0.03 and a porosity of 95.
-99% and a thickness of 1 to 5 mm, such as plastic foam such as a sheet-like polyurethane foam, or a nonwoven fabric with a weight of 10 to 50 g/m ² and a porosity of 70 to 90%. The present invention is an article for treating textile products made by impregnating an absorbent material with components (A) and (B), which provides excellent flexibility and antistatic effect to clothing through the synergistic effect of components (A) and (B). These components can be applied to clothing, etc., and these components can be applied evenly to clothing. In the present invention,
The content ratio (A)/(B) of component (A) and component (B) is 95/5 to 40/
60 (weight ratio), especially 90/
It is preferably within the range of 10 to 50/50. Furthermore, the melting point is 40 to 90 to ensure that the active ingredients of the present invention adhere evenly to the clothing being processed.
℃ Preferably hydrocarbon wax at 45 to 70℃ to component (A), (A) / wax is 95/5 to 40/60
(weight ratio), preferably in a ratio of 90/10 to 50/50. Such waxes include paraffin waxes and microcrystalline waxes whose main component is carbon number 20-35. The article for treating textile products of the present invention is particularly effective when used in dryers for clothes, but it can also be used in the rinsing process of washing clothes and the like. In order to improve the flexibility and antistatic effect in this case, one kind or It is desirable to add two or more kinds. The appropriate amount of these additives is 40% by weight or less of the softener. As for fatty acid alkanolamides, the number of carbon atoms in the constituent fatty acids is 8.
~24, and those having an added mole of ethylene oxide of 1 to 40 are used. In addition, as fatty acid ester,
A fatty acid having 8 to 20 carbon atoms and (i) an esterified product with a monohydric alcohol having 1 to 4 carbon atoms, (ii) a mono- or polyesterified product with a polyhydric alcohol having 1 to 6 carbon atoms, (iii) a carbon number Mono- or polyesterified products of 1 to 6 polyhydric alcohols with ethylene oxide adducts (=1 to 60) are preferably used. In addition, as higher alcohols in ethylene oxide adducts of higher alcohols,
Examples of the primary or secondary alcohol and alkylphenol include phenol having an alkyl group having 8 to 20 carbon atoms, and examples of the oil and fat include castor oil and hydrogenated castor oil. Further, small amounts of fluorescent brighteners, dyes, pigments, fragrances, etc. can be added. The amount of components (A) and (B) impregnated into the absorbent material can be arbitrarily selected, but from the viewpoint of ease of use in the rinsing process, the void occupancy of the absorbent material including other components should be 1 to 50.
It is desirable to set the amount to % by capacity. The product of the present invention is particularly effective when used in a clothes dryer, as the softening component is uniformly applied to the clothing and exhibits excellent flexibility and antistatic properties. Clothing made of synthetic fibers such as nylon also has the advantage of not causing discomfort to the user due to static electricity. Next, the present invention will be explained in detail with reference to Examples. In addition, a method for manufacturing an article for processing textile products, a method for processing textile products,
Performance evaluation was performed using the following method. ●Method for manufacturing articles for textile processing The ingredients were heated and melted and mixed, and a sheet-shaped absorbent material was immersed in this solution, and then the amount of impregnation was adjusted using a squeezing roller. Next, after cooling to room temperature, it was cut into predetermined dimensions. ●Processing method for textile products Cotton towels and acrylic cloth (acrylic jersey) are used as textile products. After washing with these commercially available detergents, rinse them thoroughly to a dehydration rate of 140%. (Acrylic cloth) was placed in a vertical rotary household dryer so that the total weight was 1 kg. 1 article for textile processing (23 x 28 cm for non-woven fabric, 7 cm for plastic home)
x 20 cm) and dried at approximately 50 to 70°C for 45 minutes. ●Performance evaluation (a) Flexibility: The feel of the test cloth (cotton towel) before and after treatment was compared and evaluated based on the following criteria. 〇... Soft △... Slightly stiff ×... Same as before treatment (B) Antistatic property: Using a static honest meter, the voltage applied to the cloth was 7KV, and the target distance was 20
mm, and the half-life (seconds) of the charged voltage was measured after the voltage was removed. Acrylic cloth was used as the test cloth. (c) Uniformity of adhesion: The treated acrylic cloth was immersed in a 0.04% bromophenol blue aqueous solution for about 30 seconds, thoroughly rinsed with pure water, air-dried, and the blue dyed state was evaluated according to the following criteria. 5: No uneven dyeing observed. 4: Very slight dyeing unevenness is observed. 3: Some uneven dyeing is observed. 2: Considerable uneven dyeing is observed. 1: Very uneven dyeing. Example 1 Absorbent material with a thickness of 2 mm and an apparent specific gravity of 0.014
Using a sheet-like polyurethane foam with open cells, a composition consisting of dihydrogenated beef tallow alkyldimethylammonium methylsulfate (component A), stearic acid amide (component B), and sorbitan monostearate was prepared as components (A) and (B). Impregnation was performed by changing the blending ratio. The impregnation amount is 2 g per 7 x 20 cm sheet. The blending ratio of component (A) and sorbitan monostearate is 7/3 (weight ratio). Table 1 shows the blending ratio (weight ratio) and performance of components (A) and (B).

[Table] (Note) * Not evaluated as component (A) is not contained. From Table 1, the components of the products of the present invention (Nos. 2 to 6)
When using a material with a content ratio of (A)/(B) of 95/5 to 40/60, excellent flexibility and antistatic properties can be imparted to clothing, and the softener can be evenly attached. Recognize. On the other hand, it can be seen that in the comparative examples (Nos. 1, 7, and 8), the softener did not adhere uniformly, and the antistatic properties and flexibility were not sufficient. Example 2 A nonwoven fabric made of polypropylene and polyester fibers and having a basis weight of 25 g/m ² was used as an absorbent material, and its performance was evaluated by impregnating it with the following compositions (No. 1 to No. 5). The amount of impregnation is 2 g per 23 x 28 cm of nonwoven fabric. The results are shown in Table-2. Composition No. 1 Dipalmityldimethylammonium chloride
55 parts by weight Palmitic acid amide 20〃 POE ^*1 (=2) Nonyl phenyl ether 25〃 *1 POE means polyoxyethylene, means the average degree of polymerization of ethylene oxide (hereinafter the same) Composition No. 2 Distearyldimethylammonium methyl sulfate 60 parts by weight Oleic acid amide 20〃 POE (=2) nonylphenyl ether 20〃 Composition No. 3 2-heptadecyl-1-ethyl-1-[(2-octadecanoylamino) Ethyl imidazolinium ethyl sulfate 56 parts by weight Lauric acid amide 20 Polyethylene glycol (average molecular weight 200) monostearate 24 Composition No. 4 Add 90 parts by weight of Composition No. 3 to paraffin wax with a melting point of 66°C Added 10% by weight. Composition No. 5 80 parts by weight of Composition No. 3 and 20 parts by weight of paraffin wax having a melting point of 53°C.

[Table] From Table 2, it can be seen that adding paraffin wax makes the attachment to clothing more uniform.

Claims (1)

[Scope of Claims] 1 (A) Cationic fiber softener and (B) General formula () R ₁ CONH ₂ ... () (In the formula, R ₁ is an alkyl group or alkenyl group having 7 to 23 carbon atoms. ) and the fatty acid amide represented by component (A) and component (B).
rinsing in the washing process of textile products, characterized by impregnating it into an absorbent material such that the content ratio (A)/(B) of Textile processing articles used during drying or drying.