JP3181439B2 - Articles for textile processing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention transfers a softener composition carried on a substrate to a textile product such as clothing or towels in a dryer when the fabric product comes into contact with the textile product, and is particularly excellent in chemical fibers. The present invention relates to an article for treating textile products, which can impart flexibility and an antistatic effect.

[0002]

2. Description of the Related Art When drying laundry using a clothes dryer, various softeners have been proposed as so-called dryer softeners which impart softness and antistatic property to the laundry.
For example, JP-A-58-174679 discloses an absorbent material in which a cationic surfactant, a fatty acid amide and a fatty acid ester are impregnated.
No. 77 discloses an absorbent material impregnated with a cationic surfactant, a fatty acid amide, and a fatty acid. However, the cationic surfactants used in these softeners for dryers are mainly composed of di-long-chain alkyldi-short-chain alkyl quaternary ammonium salts as a main component, which is inferior in biodegradability. It is considered one of the causes of river pollution. Therefore, development of a softener for a dryer having good biodegradability using a quaternary ammonium salt having a long-chain alkyl ester group is desired.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a softener for a dryer using a quaternary ammonium salt having a long-chain alkyl ester group having good biodegradability. It is an object of the present invention to provide an article for treating textile products, which can impart properties and an antistatic effect.

[0004]

SUMMARY OF THE INVENTION The article for treating textile products of the present invention comprises (A) a cationic surfactant having two long-chain hydrocarbon groups, at least one of which is interrupted by an ester group. The softener composition containing 10 to 60% by weight of (B) is composed of a composite polyolefin fiber having a fiber thickness in the range of 3 to 10 denier, the inside being polypropylene and the outside being polyethylene, and the basis weight is 15-40
g / m ² , and used in a washing drying process.

[0005]

DETAILED DESCRIPTION OF THE INVENTION As the component (A) of the present invention, a cationic surfactant having two long-chain hydrocarbon groups, at least one of which is interrupted by an ester group, is used. Specific examples of the cationic surfactant of the component (A) include those represented by the following general formulas (I) to (III).

[0006]

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[0007]

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[0008]

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In the formula, R ₁ and R ₂ each have 11 to 11 carbon atoms.
23, preferably 15 to 21 alkyl groups or alkenyl groups, for example, groups represented by R ₁ —CO and R ₂ —CO are usually saturated higher fatty acids such as stearic acid and palmitic acid, oleic acid, elaidic acid, linoleic acid Acids, unsaturated higher fatty acids such as linoleic acid, etc., derived from fatty acids obtained by decomposing and purifying natural fats and oils such as tallow, lard, palm oil, palm kernel oil, soybean oil, safflower oil, sunflower oil and olive oil Among them, oleic acid, stearic acid, tallow fatty acid, hardened tallow fatty acid, palm oil fatty acid, hardened palm oil fatty acid, palm kernel oil fatty acid, and hardened palm kernel oil fatty acid are particularly preferable. As the unsaturated higher fatty acid, the stereoisomer may be a cis- or trans-form, or a mixture of both, and particularly, the ratio of the cis-form / trans-form is 25/75 to 100/0. (% By weight). R ₁ and R ₂ may be the same or different.

R ₃ , R ₄ and R ₅ each have 1 to 4 carbon atoms
And specifically include a methyl group, an ethyl group, a propyl group, a butyl group, a hydroxymethyl group, a hydroxyethyl group, a hydroxypropyl group, and a hydroxybutyl group. , An ethyl group and a hydroxyethyl group are preferably used. R ₆ and R ₇ are each CqH ₂ q (where q = 1 to
The alkylene group represented by 4), specifically, an ethylene group, a propylene group, or a butylene group, which may be linear or branched. R ₈ is an alkyl group or an alkenyl group having 12 to 24, preferably 15 to 21 carbon atoms, each of which is a —CO—O— group, a —O—CO— group, a —C
It may be one interrupted by an O-NH- group or -NH-CO- group. The ester group in the general formulas (I) to (VII) is usually in the form of R-CO-O-,
-May be used. m, n, and p are numbers from 1 to 4, X
Is an anion, specifically, a halogen atom anion such as chlorine, bromine or iodine, R ₉ SO ₄ (R ₉ is a group having 1 to 1 carbon atoms)
The alkyl group is a methyl group and an ethyl group, and a methyl group is particularly preferable. And the like.

Specific examples of the general formula (I) include di (stearoyloxyethyl) dimethyl quaternary ammonium chloride, stearoyloxyethyl (oleoyloxyethyl) dimethyl quaternary ammonium chloride, di (palmitoyloxybutyl) dimethyl Quaternary ammonium methyl sulfate, di (oleoyloxyisopropyl) dimethyl quaternary ammonium chloride, and the like.

Specific examples of the general formula (II) include stearyl (oleoyloxyethyl) dimethyl quaternary ammonium chloride, stearyl (stearoyloxyethyl) dimethyl quaternary ammonium chloride, and oleyl (stearoyloxyisopropyl) dimethyl quaternary ammonium chloride. Quaternary ammonium methyl sulfate, palmityl (oleoyloxybutyl) dimethyl quaternary ammonium chloride, stearoylaminoethyl (stearoyloxyethyl) dimethyl quaternary ammonium chloride, hardened tallow aminomethyl (oleoyloxymethyl) dimethyl quaternary ammonium chloride And the like.

Specific examples of the general formula (III) include 1-methyl-1-stearoyloxyethyl-2-oleoyloxyethyl-4,5-dihydroimidazolinium chloride and 1-ethyl-1-linolenoyl Oxyethyl-
2-Eridyloxyethyl-4,5-dihydroimidazolinium chloride and the like.

Specific examples of the general formula (IV) include 1-methyl-1-stearoyloxyethyl-2-oleyl-
4,5-dihydroimidazolinium chloride, 1-methyl-1-elaidyloxypropyl-2-oleyl-
4,5-dihydroimidazolinium chloride and the like.

As a specific example of the general formula (V), 1-methyl-1-tallow ethyl-2-oleoyloxyethyl-
4,5-dihydroimidazolinium chloride, 1-methyl-1-tallow ethyl-2-palmitoyloxyisopropyl-4,5-dihydroimidazolinium chloride and the like can be mentioned.

As a specific example of the general formula (VI), 1,1-
Distearoyloxyethyl-3-trimethylammonium propane chloride, 1-oleoyloxyethyl-1-stearoyloxyisopropyl-3-trimethylammonium propane chloride and the like can be mentioned.

Specific examples of the general formula (VII) include 1-stearyl-1-stearoyloxyethyl-3-trimethylammonium propane methyl sulfate, 1-oleyl-1-oleoyloxyethyl-3-trimethylammonium propane chloride and the like. Is mentioned.

The cationic surfactant of the component (A) is contained in the softener composition supported on the substrate (B) of the present invention in an amount of 10 to 6%.
0% by weight can be added. Preferably 15 to 50
% By weight. If the amount is less than 10% by weight,
The absolute amount of the softening base is small and the softening effect is insufficient. On the other hand, if it exceeds 60% by weight, the softening base does not uniformly transfer to the cloth under the conditions of use in the dryer, and the softening effect is hardly exhibited.

In order to further improve flexibility and antistatic properties, the softener composition of the present invention contains a mono-long chain alkyl tri-short chain alkyl quaternary ammonium salt (long chain alkyl) in addition to the above component (A). The group may contain an ester bond, an amide bond, etc.), a fatty acid, a fatty acid amide,
One or a mixture of two or more selected from the group consisting of higher alcohol ethylene oxide adducts, sorbitan fatty acid esters, alkylphenol ethylene oxide adducts, and fats and oils ethylene oxide adducts can be added. Further, a fluorescent whitening agent, a dye, a pigment, a fragrance, a silicone, an antibacterial agent, an antioxidant and the like can be added.

As the substrate (B) for supporting the softener composition containing the component (A) of the present invention, a nonwoven fabric having a space capable of holding the softener composition in the material itself is used. The nonwoven fabric of the present invention is mainly composed of a hydrophobic composite polyolefin fiber comprising polypropylene on the inside and polyethylene on the outside. Such a non-woven fabric is a so-called non-binder non-woven fabric in which adhesion between fibers is made by heat fusion of a composite polyolefin fiber which is one of constituent fibers. The composite polyolefin fiber having an adhesive action is a fiber having a structure in which polypropylene as a high-melting-point component is coated as a core and polyethylene as a low-melting-point component is coated on the outside thereof. These fibers are easily used as ES fibers of Chisso Corporation. Is available at And the nonwoven fabric of the present invention is, for example, a composite polyolefin fiber alone or a composite polyolefin fiber and a polyester fiber, a polyamide fiber, a polyacrylonitrile fiber,
It is manufactured by heat treatment after blending of polypropylene fiber etc. into a sheet by a conventional method, but the fiber arrangement is mesh-like, woven, woven, and the fiber orientation is random. And the like. When a nonwoven fabric made of a blend of the composite polyolefin fiber of the present invention and another hydrophobic fiber is used, the amount of the composite polyolefin fiber should be 50% by weight or more in order to maintain the adhesive strength between the fibers. Is appropriate.

The composite polyolefin fiber of the present invention must have a thickness in the range of 3 to 10 denier, and the nonwoven fabric obtained from this fiber has a basis weight of 15 to 40 g.
/ M ² , preferably 18 to 25 g / m ² . Normally used fiber length is 38 to 102m
m, the thickness of the nonwoven fabric is 0.1 to 0.3 mm. By satisfying the above requirements, the sticky feeling is reduced when the nonwoven fabric impregnated with the softener is held by hand while maintaining the release rate of the softener of the present invention at a high level. That is, if hydrophobic fiber having a fiber thickness of less than 3 denier or more than 10 denier is used, or if the basis weight is less than 15 g / m ² , the tackiness is not improved, and if the basis weight exceeds 40 g / m ² , the softening becomes soft. This is because the release amount of the agent decreases. In addition, when the fiber thickness is 3 to 6 denier and the basis weight is 18 to 25 g / m ² ,
It is particularly preferred in terms of stickiness and release rate. The amount of the softener composition supported on the substrate can be arbitrarily selected, but the softener composition is 15 to 75 g /
m ² , preferably in the range of 25 to 50 g / m ² .

[0022]

According to the present invention, (A) 10 to 60% by weight of a cationic surfactant having two long-chain hydrocarbon groups, at least one of which is interrupted by an ester group. The softener composition is prepared by adding (B) a fiber having a thickness of 3 to 1;
Within 0 denier, the inside is polypropylene,
The outer surface is made of a composite polyolefin fiber composed of polyethylene and supported on a nonwoven fabric having a basis weight of 15 to 40 g / m ² to form a textile product treatment article used in the drying process of washing, so that it can be uniformly applied to clothing and the like. And imparts excellent flexibility and antistatic properties to fiber products, especially chemical fibers. Next, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

[0023]

EXAMPLES The article for treating textile products used in the examples was prepared by mixing the components by heating and melting, and adding 23 × 28 to the solution.
After immersing the absorbent material cut to a diameter of 1 cm, the product was manufactured by adjusting the impregnation amount using a squeezing roller. The performance of the article for treating textile products was evaluated as follows. Textiles include cotton towels and chemical fibers (acrylic jersey / polyester jersey / nylon tricot = 1/1 /
After washing 1) with a commercially available detergent, the product was sufficiently rinsed and dried. The performance was evaluated by placing the cloth subjected to this treatment in a vertical rotary household clothing dryer so that the dry weight was 1/1 (cotton towel / synthetic fiber) at a total of 1 kg. After adding one article, 45-80 ° C at about 50-80 ° C.
After a drying treatment for one minute, evaluation was made according to the following criteria. (1) Flexibility: The feel of the test cloth before and after the treatment was compared and evaluated according to the following criteria. A: Very soft. ：: Soft. Δ: Slightly soft. ×: Same as before the treatment. (2) Antistatic property: The cloth was charged with an applied voltage of 10 kV and a target distance of 20 mm using a static honest meter manufactured by Shishido Shokai Co., Ltd., and the half-life (second) of the charged voltage after voltage removal was measured. An acrylic cloth was used as a test cloth. (3) Uniformity of adhesion: After immersing the treated test cloth in a 0.04% aqueous solution of bromophenol blue for about 30 seconds,
The state of being thoroughly rinsed with pure water, air-dried and dyed blue was evaluated according to the following criteria. A: No uneven dyeing is observed. ：: Some uneven dyeing is observed. Δ: Uneven dyeing is observed. ×: Extremely uneven dyeing. (4) Release rate of softening agent: The amount of the softening agent released from the nonwoven fabric after the textile product in the drying step was calculated as a ratio to the amount at the time of impregnation. In addition, the storage stability and stickiness of the treated fiber product article were evaluated according to the following criteria. (5) Storage stability: One piece of the textile product treated article is cut into 32 pieces, of which 16 pieces are layered, paper is laid underneath, and 15
After exposing for more than hr, the exudation of the components and the fusion of the absorbent materials were evaluated. 5 points: Exudation, no fusion observed. 3 points: Exudation and fusion are slightly observed. 1 point: Exuding, severe fusion. (6) Stickiness: The feel of the article for treating textile products was determined according to the following criteria. : Almost no stickiness was observed. ：: Slightly sticky. Δ: Sticky. X: Large stickiness.

Example 1 A heat-fusible nonwoven fabric having a core-sheath structure having a core of polypropylene and a sheath of polyethylene and having a thickness of 6 denier and a basis weight of 20 g / m ² was prepared. On the other hand, component A (cationic surfactant), sorbitan monostearate (component B) and stearic acid (component C) shown in Table 1 were added in the amounts shown in Table 1, and 5% by weight of lauryl trimethyl ammonium methyl sulfate was added. %, And 10% by weight of palm fatty acid diethanolamide were heated and melted and uniformly mixed to prepare a softener composition. This softener composition was added to the above-mentioned nonwoven fabric in an amount of 2 g per 23 × 28.
And the properties and performance were evaluated and the results are shown in Table 2.

[0025]

[Table 1] DiSO-quaternary salt: di (stearoyloxyethyl) dim
Cyl quaternary ammonium methyl sulfate S / OO-quaternary salt: stearyl (oleoyloxyethyl
B) Dimethyl quaternary ammonium methyl sulfate S / OO-Imd: 1-methyl-1-oleoyloxy
Ethyl-2-stearyl-4,5-dihydroimidazoli
Nium methyl sulfate

[0026]

[Table 2]

Example 2 Non-woven fabrics having various basis weights as shown in Table 3 were prepared using ES fibers having different thicknesses (composite polyolefin fibers manufactured by Chisso Corporation). On the other hand, 30% by weight of di (stearoyloxyethyl) dimethylammonium methyl sulfate, 10% by weight of palm fatty acid diethanolamide, 30% by weight of sorbitan monostearate and 30% by weight of stearic acid
Was mixed to prepare a softener composition. The softener composition was impregnated with the above-mentioned nonwoven fabric in an amount of 2 g per 23 × 28 cm of each nonwoven fabric to produce a treated textile product, and its properties and performance were evaluated. The results are shown in Table 3.

[0028]

[Table 3] Non-woven fabric properties / performance Fiber thickness Basis weight Release rate (d: denier) (g / m ² ) Stickiness (%) Flexibility Example 6 6d 20 ◎ 85 ◎ Example 7 3d 20 ◎ 85 ◎ Example 8 3d 18 ○ 90 ◎ Example 9 6d 24 ◎ 80 ◎ Example 10 6d 35 ◎ 70 ○ Example 11 3d / 6d = 50/50 20 ◎ 85 ◎ Comparative Example 2 6d 13 × 90 ◎ Comparative Example 36d 45 40 ΔComparative Example 4 15d 30 85 85 ◎ * The nonwoven fabric of Example 11 is obtained by mixing two kinds of fibers of 3d and 6d with 5
0/50 (weight ratio) was used.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06M 23/02 D06M 13/46

Claims (1)

(57) [Claims] (A) A softener composition containing 10 to 60% by weight of a cationic surfactant having two long-chain hydrocarbon groups, at least one of which is interrupted by an ester group, (B) The composite fiber is composed of a composite polyolefin fiber having a fiber thickness in the range of 3 to 10 deniers, the inside being polypropylene and the outside being polyethylene, and having a basis weight of 15
An article for treating textile products used in a washing drying step, wherein the article is carried on a nonwoven fabric of ４０40 g / m ² .