ES2380428T3 - Composition of fiber treatment agent - Google Patents

Abstract

A treated fiber obtained by contacting a fiber treating agent composition comprising an amphipathic lipid having hydroxyl group (s) and amide group (s) in the molecule thereof and being solid particles having an average size of 1 to 100 μm particle, with a fiber so that the amphipathic lipid is produced continuously or discontinuously on the surface of the fiber.

Description

Composition of fiber treatment agent

Technical field

The present invention relates to a fiber treating agent composition that gives excellent sensation to the fibers, and to a fiber that provides excellent feel and excellent feeling when a consumer is wearing a final product produced from the fiber. More particularly, the invention relates to the use of a fiber treating agent composition that contains an amphipathic lipid in a solid particulate form having a specific average particle size that is beneficial for the treatment of fibers; to a fiber that has the amphipathic lipid on a surface thereof and to a method of treating the fiber.

Technical background

In recent years, treated fibers designed to produce effects analogous to those of skin care cosmetics have found utility in textile products, particularly those worn by consumers in their daily lives. Japanese publicly accessible patent application (kokai) No. 8-60547 discloses a fiber skin care product to which a protein containing serine is attached. Japanese publicly accessible patent application (kokai) No. 2001-146680 discloses a finishing composition for textiles containing a non-ionic amphipathic substance. More specifically, the non-ionic amphipathic substance is a ceramide, and preferably, the ceramide is present, together with other components, in the composition while in the form of emulsion particles having a particle size of no more than 1,000 nm. By virtue of these characteristics, it is described that the composition disclosed therein shows excellent emulsion stability over time, which prevents the precipitation of ceramides, and excellent cohesion or adhesion of ceramides to the fibers to be treated. In addition, treated textile products promote the ability to retain skin moisture when consumers wear the products. Therefore, the ceramides disclosed in this publication are not present in solid form.

However, these techniques are not necessarily satisfactory, since ceramides cannot be retained in the fiber in such amounts that they can provide sufficient effects, the durability of the washed clothes is low and the fiber feel cannot be improved without sacrificing Other features.

An object of the present invention is to provide a fiber treatment agent composition that is capable of causing an amphipathic lipid having a skin care effect to be stably retained in the fiber; that of excellent sensation to the fiber; and that, when a consumer wears a final product produced from the fiber, it shows a moisturizing effect on the skin and a pleasant sensation on the skin with which the fiber product comes into contact.

Disclosure of the invention

The present invention provides the use of a fiber treating agent composition comprising an amphipathic lipid having hydroxyl group (s) and amide group (s) in said molecule, said lipid are solid particles having an average size of particle from 1 to 100 μm.

The present invention also provides the use of a fiber treatment agent composition that additionally comprises, in addition to the aforementioned fiber treatment agent composition, one or more species selected from the group consisting of surfactants and aqueous medium.

The present invention also provides a treated fiber that is obtained by contacting the aforementioned fiber treating agent composition with the fiber so that the aforementioned amphipathic lipid is produced to be present continuously or discontinuously on a surface of the fiber.

The present invention also provides a fiber to which the aforementioned amphipathic lipid has been bonded.

The present invention also provides a method of treating fiber comprising contacting the aforementioned fiber treating agent composition with the fiber.

Best way to carry out the invention

As used herein, "amphipathic lipid having hydroxyl group (s) and amide group (s)" (hereafter referred to as component (a)) is defined as such lipid. containing one or more hydroxyl groups and one or more amide groups in the lipid molecule; which is in the class consisting of natural ceramides, synthetic ceramides and the like (pseudoceramides) prepared therefrom by, for example, synthesis; which is solid at room temperature (25 ° C). The lipid examples

Amphipathic include Ceramide H03 (Sederma), Ceramide II (Sederma), Quesamide H (Quest), Ceramide TIC-001 (Takasago International Corporation) and SOFTCARECERAMIDE SL-E (Kao Corporation). From the viewpoint of the stability of the lipid incorporated in the fiber treating agent composition, the lipid preferably has a melting point of not less than 30 ° C, more preferably of not less than 40 ° C. Among the ceramide analogs synthesized, particularly preferred are amide derivatives represented by the following formula

In formula (1), R1 is preferably a linear or branched, saturated or unsaturated C9-C25 hydrocarbon group; R2 is preferably a linear or branched, saturated or unsaturated C10-C26 hydrocarbon group; and each of R3 and R4 is preferably a hydrogen atom.

The methods for producing the above-mentioned amide derivative (1) are described in detail in, for example, the publicly available Japanese patent application (kokai) No. 62-228048 and No. 63-216852.

The amphipathic lipid are solid particles having an average particle size of 1 to 100 μm, preferably 2 to 100 μm, more preferably 5 to 100 μm, even more preferably 5 to 80 μm, most preferably 7 to 50 μm. Preferably, the solid particles are present in a crystalline state.

The aforementioned amphipathic lipids, which can be used alone or in combination of two or more species, are incorporated into the fiber treating agent composition of the present invention in an amount of 0.005 to 40% by weight, preferably 0, 05 to 40% by weight, more preferably 5 to 40% by weight, most preferably 10 to 30% by weight. When the fiber treatment agent composition is a thick solution, the amount of amphipathic lipids in the fiber treatment agent composition is preferably 1 to 40% by weight, more preferably 5 to 40% by weight, most preferably from 10 to 30% by weight, while when the composition is a diluted solution, its amount in the fiber treating agent composition is preferably from 0.005 to 1% by weight, more preferably from 0.01 to 0.9 % by weight, most preferably 0.02 to 0.6% by weight.

No particular limitations are imposed on the surfactant (hereafter referred to as component (b)) that can be used for the preparation of the fiber treating agent composition used in the present invention, and one or more more species of non-ionic surfactants, anionic surfactants, amphoteric surfactants and cationic surfactants.

In the case where the amphipathic lipid is first subjected to crystallization together with the component (b) and then incorporated into the fiber treating agent composition, the component (b) is preferably one or more species selected from those commonly used for cosmetic use; for example, selected from nonionic surfactants, anionic surfactants and amphoteric surfactants.

Examples of nonionic surfactants include alkyl polyglycosides, polyoxyalkylene alkyl or alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters, sorbitan esters of fatty acids, polyoxyalkylene sorbitol esters of fatty acids, polyoxyalkylene glycerine fatty acid esters, fatty acid esters of fatty acid esters, , fatty acid monoglycerides, polyethylene glycol esters of fatty acids and alkanolamides of fatty acids.

Examples of anionic surfactants include acetic acid alkyl polyoxyalkylene ether or salts thereof, N-acylamino acid salts, polyoxyalkylene alkyl ether sulfate salts, polyoxyalkylene alkyl ether phosphate salts, alkyl phosphate salts, N-acylmethyltaurine salts, alkylsulfosuccinate salts , polyoxyalkylene alkylsulfosuccinate salts and fatty acid salts.

Examples of amphoteric surfactants include alkylaminoacetate betaine, alkylamide oxide, alkylamide propyl betaine, alkyl hydroxy sulfobetaine and amino acid amide (imidazoline type betaine).

Preferred surfactants are nonionic surfactants and polyoxyalkylene ether acetic acid alkyl or salts thereof. Preferred non-ionic surfactants are alkyl polyglycosides, polyoxyalkylene alkyl or alkenyl ethers, polyoxyalkylene sorbitan fatty acid esters and sorbitan fatty acid esters.

The most preferred non-ionic surfactants include alkyl polyglycosides (for example, those in which alkyl group has 8 to 14 carbon atoms and the degree of glucose condensation is 1 to 2), alkyl or alkenyl polyoxyalkylene ethers (per For example, those in which the alkyl or alkenyl group has 8 to 18 carbon atoms and the average number of moles of ethylene oxide added is 4 to 25, preferably 4 to 15), polyoxyalkylene sorbitan fatty acid esters ( for example, those in which the fatty acid has 8 to 20 carbon atoms and the average number of moles of ethylene oxide added is 5 to 25) and sorbitan esters of fatty acids (for example, fatty acid monoesters having from 8 to 20 carbon atoms).

Examples of polyoxyalkylene ether acetic acid alkyl or salts thereof include such acids themselves having from 8 to 20 carbon atoms and an average number of moles of ethylene oxide added from 3 to 15; and alkali metal salts thereof. That is, the acetic acid alkyl polyoxyalkylene ether can be used as is (without neutralization) or after being neutralized.

When a cationic surfactant is further added, increased adsorption of the amphipathic lipid on the fiber can be obtained. Examples of cationic surfactants include mono (long chain alkyl) ammonium salts, di (long chain alkyl) ammonium salts, benzalkonium salts, benzethonium salts and pyridinium salts.

Any of the aforementioned surfactants can be used individually or in combination of two or more species. The surfactant (s) may be incorporated in the fiber treating agent composition in an amount of 2 to 55% by weight, preferably 5 to 40% by weight. When a crystallization step is performed, it is particularly preferred that these intervals are met.

The weight ratio of the amphipathic lipid to the surfactant, that is, (a) / (b), is preferably 90/10 to 25/75, more preferably 80/20 to 30/70, most preferably 70 / 30 to 40/60. When a crystallization step is performed, it is particularly preferred that these intervals are met.

As used herein, the aqueous medium that can be used to produce the fiber treating agent composition of the present invention is water and / or a polar organic solvent that is water soluble. Examples of water-soluble polar organic solvents include alcohols such as methanol, ethanol and propanol; glycols such as ethylene glycol, propylene glycol, diethylene glycol and polyethylene glycol; and acetone.

Preferred examples of the aqueous medium include water, ethanol and glycols, with water being the most preferred.

In fiber treatment, the fiber treatment agent composition may be used as is or after dilution with water and / or a water soluble polar organic solvent, or alternatively diluted with a surfactant and an aqueous medium. When the fiber treating agent composition is a thick solution, preferably, the composition is diluted before use.

The fiber treating agent composition used in the present invention can be produced by, for example, heating a mixture of an amphipathic lipid (component (a)), a surfactant (component (b)) and water at a temperature of not less than the melting point of the amphipathic lipid (from the melting point to about a temperature 10 ° C higher than the melting point) with stirring, to melt the mixture in this way, and after the melting is transformed into a state homogeneously, cool the melt with stirring, so that crystallization of component (a) occurs.

In this process, the particle size of the component (a) can be regulated through the control of the type and amount of the surfactant, cooling rate and stirring speed or the like. Preferably, component (a) has an average particle size of 1 to 100 μm, more preferably 2 to 100 μm, even more preferably 5 to 100 μm, even more preferably 5 to 80 μm, most preferably 7 at 50 μm, measured by the method described herein below. As used herein, the average particle size is an arithmetic mean value determined by photographing the particles with an optical microscope with transmission light, arbitrarily selecting 30 particles in a photograph and for each of the 30 particles, measuring the axis main particle.

The fiber treating agent composition used in the present invention may also contain a pH regulator, a preservative, an emollient agent, a hardening agent, an antistatic agent, an antimicrobial / deodorant agent, a moisturizing agent, and so on.

Examples of the moisturizing agent include plant extracts, sodium hyaluronate, collagen, animal oils, vegetable oils, paraffin, liquid paraffin, petrolatum, ceresin, squalane, and so on.

Plant extracts are extracts obtained through any of a variety of plants, and examples thereof include, aloe, aloe vera, ginkgo, fennel, seaweed, pueraria root, chamomile, kiwi, cucumber, lufa sponge, gardenia, rice bran, peach, lemon, adlay, altamisa, St. John's wort, tea, etc.

Examples of vegetable oils include, olive oil, camellia oil, macadamia nut oil, castor oil, carnauba wax, candelilla wax, jojoba oil, safflower oil, soybean oil, shea oil, oil of sunflower, cocoa oil, coconut oil, palm kernel oil, prairie grass seed oil, rice germ oil, orange oil, and so on.

Animal oils include mink oil, beeswax, lanolin, and so on.

Examples of fibers used in the present invention include natural fibers such as cotton, silk, hemp and wool; regenerated fibers such as rayon, cupramonium rayon and tencel; semi-synthetic fibers such as acetate, diacetate and triacetate; and synthetic fibers such as polyester, nylon, acrylic, vinalon, polypropylene and polyurethane. No particular limitations are imposed on the shape of the fiber, and examples of the fiber include a variety of fibrous materials such as fiber and yarn; semi-finished products such as nonwoven fabrics, knitted fabrics and woven fabrics; and final products such as clothing and bedding.

Preferred examples of fiber products produced from the aforementioned fibers include those used in direct contact with the skin or hair; specifically, underwear such as pantyhose, stockings, underwear, combinations, nightgowns, briefs, shirts, swimsuits and panties; corsets, such as girdles, bras and bodis; sleepwear such as nightgowns, pajamas and bathrobes; clothing such as leotards, socks, girdles, gloves, scarves, masks, towels and hats; and bedding such as pillowcases and sheets.

According to a method of the present invention for treating fibers, the fiber is contacted with the fiber treating agent composition.

Such step of contacting the fiber with the fiber treatment agent composition may include immersion of the fiber in the fiber treatment agent composition, followed by drying; and spraying the fiber treating agent composition onto the fiber, followed by drying. Such treatment produces fibers that have the amphipathic lipid in a continuous manner or in a discontinuous manner on a fiber surface. Drying can be done naturally or with the application of heat. Pressurized heat treatment can be performed by using, for example, an iron or trouser press.

Examples of the specific treatment method include the method of drying with pads using a juicer and a dryer; the immersion staining method that employs a lathe staining machine, a cheese staining machine, or a jet staining machine; the spray method; the coating method; the printing method; and the additive mixing method applied to rayon or acrylic fibers.

When referring to textile products, the fiber treating agent composition of the present invention can be used at any step during washing, for example, in a washing step, a rinsing step, a softener-finishing step or A step of preparation. Alternatively, the fiber treating agent composition of the present invention can be applied directly to clothing or bedding by the spraying method and so on.

In the fiber treatment method of the present invention, the amphipathic lipid is preferably used in an amount of 0.001 to 5% by weight, more preferably 0.05 to 1% by weight, most preferably 0.1 to 0 , 8% by weight, with respect to the weight of the fiber.

When treating the fiber, a binder can optionally be used. The use of a binder is preferred from the viewpoint of washing durability. Examples of binders include silicone resins, acrylic resins, urethane resins, vinyl acetate resins, and so on. In this case (that is, when the fiber treatment is carried out), in addition to a binder, the following agents can also be used depending on the purposes: emollient agent, hardening agents, sewing facilitating agents, flame retardants, antistatic agents, dirt repellents, antimicrobial / deodorant agents, lifting agents, agents that prevent slipping, moisturizing agents, water repellents, water absorbers, fluorescent dyes, anti-shrinkage agents such as glyoxal, fixing agents, and so on.

From the viewpoints of good washing durability and fiber treatment effect, the binder is preferably used in an amount of 10 to 500% by weight, more preferably 50 to 300% by weight, based on the weight of the lipid amphipathic, where the calculation is based on the solid components of the binder.

It is believed that the amphipathic lipid of the invention, due to its specific form (i.e. solid particles having an average particle size of 1 to 100 μm), does not tend to be incorporated into the treated fiber, but sticks effectively on the surface of the fiber compared to amphipathic lipids in solubilized form or emulsified form. In addition, when the fiber treatment process includes a wash step or a rinse step, the amphipathic lipids in solubilized form or emulsified form are easily removed through washing. However, according to the present invention, since the amphipathic lipid is solid particles having an appropriate size, it is not easily washed away, thereby achieving improved retention of the lipid in the fiber. From these reasons, the fiber that has undergone treatment with the agent composition of

Fiber treatment used in the invention is considered to show excellent sensation of the resulting textile and skin-friendly sensation.

Examples

Examples No. 1 to 3 and comparative example 1

(Preparation of the fiber treatment agent composition)

The amphipathic lipids, surfactants and water shown in Table 1, in the columns of Examples No. 1 to 3 were heated from 80 to 90 ° C. Subsequently, each of the resulting mixtures was cooled with stirring, to thereby allow the amphipathic lipid to crystallize. Stirring was continued and the mixture was cooled to room temperature, to thereby produce a fiber treating agent composition. The amphipathic lipid contained in the resulting composition was determined to be solid particles of crystals from acicular to laminar having an average particle size of 11.8 μm (example 1), 8.9 μm (example 2) or 16.3 μm (example 3). The crystalline state was confirmed by X-ray diffraction.

In comparative example 1, the procedure of example 1 was repeated, except that 32.0 parts by weight of MYDOL 10 were changed to 23.0 parts by weight of RHEODOL TW-S120, to thereby obtain a composition in which The amphipathic lipid remains uncrystallized but is present as emulsion particles (confirmed by X-ray diffraction).

Table 1 (parts by weight)

Examples

Comparative example

one

2 3

one

(a) Amphipathic lipid

Formula (1) R1 = C15H31 R2 = C16H33 R3 = H R4 = H (p .: 74-76 ° C) 20.0 23.0 15.0 20.0

Formula (1) R1 = C17H35 R2 = C14H29 R3 = H R4 = H (mp .: 78-80ºC)

3.0

(b) Surfactant

MYDOL 10 * 1 32.0 25.0

EMULGEN 106 * 2

15.5

KAO AKYPO RLM-100 * 3

2.0

RHEODOL TW-S120 * 4

23.0

Water

rest rest rest rest

Average particle size (μm)

11.8 8.9 16.3 1 or less

Particle shape

Solid particles Solid particles Solid particles liquid particles

* 1: Kao, decyl polyglycoside (degree of condensation: 1-1.35), effective ingredient: 40% by weight * 2: Kao, Polyoxyethylene (5) -lauryl ether * 3: Kao, Polyoxyethylene (10) - lauryl ether of acetic acid, effective ingredient: 89% by weight. * 4: Polyoxyethylene monostearate (20) sorbitan

Test example 1 and comparative test examples 1 and 2

1 g of the fiber treatment agent composition obtained from Example 1 was dispersed in 2.0 L of water, and 25 g of a pair of panties were soaked there, which had been washed five times with a commercially obtained detergent. Subsequently, the water was removed from the pantyhose once, then rinsed in an equivolume of water, followed by the removal of the water again, naturally dried, to thereby obtain a treated fiber product of the present invention. In the same way, three pairs of pantyhose were prepared, and supplied to a panel member. Then five women from the panel, who have dry skin and often complain of itching when wearing pantyhose, carried out the test of wearing the pantyhose for 3 days in winter (test 1).

By comparison, by using the composition obtained from comparative example 1, that is, the composition in which the amphipathic lipid remains uncrystallized but is present as emulsion particles, several pairs of pantyhose were treated in a similar manner, and the proof of wearing them the same five carried out

panel members than in test example 1 (comparative test 1). In addition, the test of wearing several pairs of pantyhose was carried out that had undergone a similar treatment, but without undergoing treatment with the fiber treatment agent composition (comparative test 2).

The results are all shown in table 2. The evaluation articles and the evaluation criteria are as follows. The results shown in the table are average scores of the 5 panel members.

Fabric feeling (touch)

4: Very good

3: Good

2: Slightly bad

1: Bad

Ease of wearing (softness)

4: Very good

3: Good

2: Slightly bad

1: Bad

Change in the sensation felt by the skin when wearing

4: It turned out very good

3: It turned out better

2: No changes

1: It turned out worse

Moisturizing effect when wearing

4: Very effective

3: Effective

2: Somewhat effective

1: Nothing effective

Itchy skin after wearing

4: Itching was eliminated

3: Itching was eliminated to a certain degree

2: No changes

1: Aggravated itching

Table 2

Test 1

Comp test one Comp test 2

Fabric feeling

3.6 1.8 1.6

Ease of carrying

4.0 2.2 2.0

Change in the sensation felt by the skin

3.8 2.2 1.8

Moisturizing effect

3.4 1.2 1.0

Itchy skin

3.4 2.2 1.8

As is apparent from Table 2, the fiber that has been treated with the fiber treatment agent composition of the present invention gives the resulting fiber product excellent feel, shows smoothness of the fiber product when a person is wearing it, It improves the touch to the skin, increases the moisturizing effect and mitigates the itching of the skin.

Test examples No. 2 to 4

5 g of each of the fiber treatment agent compositions obtained from examples 1, 2 and 3 (corresponding to tests 2, 3 and 4, respectively) were dispersed in 10.0 L of water. 1.0 kg of cotton fiber (cotton cloth) was soaked in the resulting dispersion. After that, the cotton fiber was squeezed with a juicer, then dried at 55 ° C for 30 minutes, to thereby give a treated fiber of the present invention.

Ten members of a panel consisting of five men and five women touched the treated fiber and fiber that had undergone a similar treatment without the use of the present fiber treatment agent composition.

invention, to compare them in terms of feeling by the blind method. The results are shown in table 3. The evaluation criteria are shown below. The ratings shown in table 3 are average values of the ratings given by the 10 panel members.

Sensation

5: The product of the invention is much better

4: The product of the invention is better

3: Comparable

2: The untreated product is better

1: The untreated product is much better

Table 3

Test 2

Test 3 Test 4

Sensation

4.4 4.1 3.8

As is apparent from Table 3, compared to fiber products that had not undergone treatment, those treated with the fiber treatment agent composition of the present invention provide excellent hand feel.

Example 4

The fiber treating agent composition of the present invention can be incorporated into a softening agent composition and can be used to smooth fiber products.

Composition of fiber treatment agent (example 1) 10.0% QUARTAMIN D86P * 1) 3.0% EMULGEN 123P * 2) 0.5% Ethylene Glycol 1.5% Water rest Total 100.0%

* 1): Dextearyl dimethyl ammonium chloride (product of Kao Corporation, 75% effective ingredient) * 2): Polyoxyethylene (23) -lauryl ether (product of Kao Corporation).

Example 5

Composition of fiber treatment agent (example 2) 2.5% Perfume c.s. Water rest Total 100.0%

The resulting composition is placed in an aerosol container, followed by stirring well and sprayed on fiber products evenly.

Industrial applicability

The fiber treated with the fiber treatment agent composition of the present invention provides excellent feeling to the resulting textiles and skin-friendly sensation. When a consumer wears the fiber product produced from the fiber treated in this way, remarkable effects are achieved, including a pleasant sensation to the skin with which the fiber product is contacted, skin protective effect, effect to allow people who have sensitive skin can wear it with ease, moisturizing effect and effect of improving skin diseases such as rough skin.

Claims (9)

1. A treated fiber obtained by contacting a fiber treating agent composition that 5 comprises an amphipathic lipid having hydroxyl group (s) and amide group (s) in the molecule thereof and being solid particles having an average particle size of 1 to 100 μm, with a fiber so that it is produced that the amphipathic lipid is present continuously or discontinuously on the fiber surface. 2. The treated fiber of claim 1, wherein the amphipathic lipid is obtained by heating a A mixture of the amphipathic lipid, a surfactant and / or an aqueous medium at a temperature not lower than the melting point of the amphipathic lipid and a subsequent crystallization step. 3. The treated fiber of claims 1 or 2, wherein the amphipathic lipid is represented by the following of linear or branched, saturated or unsaturated C7-C39 which may be substituted by one or more hydroxyl groups; and R3 and R4 are the same or different and each independently represents a hydrogen atom, a phosphate salt residue, a sulfate salt residue or a saccharide residue; as long as 20 one or more hydroxyl groups are contained in a molecule of the derivative. 4. The treated fiber of claims 1 to 3, wherein the amphipathic lipid is contained in an amount of 0.005 to 40% by weight of the fiber treating agent composition. The treated fiber of claims 1 to 4, wherein the fiber treating agent composition further comprises one or more species selected from the groups consisting of surfactants and aqueous medium.

6.

A fiber according to claim 1, wherein the amphipathic lipid is glued. 30

7. A fiber treatment method, comprising contacting the fiber treating agent composition as defined in any one of claims 1 to 5 with the fiber.

8.

The fiber treatment method according to claim 7, wherein the fiber is treated by immersion in the fiber treatment agent composition.

9. The fiber treatment method according to claim 7, wherein the fiber is treated by spraying the fiber-to-fiber treatment agent composition. The fiber treatment method according to any one of claims 7 to 9, wherein, when the fiber is contacted with the fiber treatment agent composition, at least one species selected from the following group is also used: binders, emollient agents, hardening agents, sewing facilitating agents, flame retardants, antistatic agents, dirt repellents, antimicrobial / deodorant agents, lifting agents, slip-preventing agents, agents 45 moisturizers, water repellents, water absorbers, fluorescent dyes, anti-shrinkage agents and fixing agents. 11. Use, in a fiber treating agent composition, of an amphipathic lipid having group (s) hydroxyl and amide group (s) in the lipid molecule and solid particles having an average particle size of 1 to 100 μm.