JP3472749B2 - Method for producing wool fiber products generating negative ions - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a wool fiber product that generates negative ions.

[0002]

2. Description of the Related Art Textile products that have been treated to generate negative ions relieve the wearer's feelings, activate skin cells, and promote natural healing ability and enhancement of immunity. This is a negative ion that purifies air, weakens blood to eliminate active oxygen in the body to maintain a healthy body, activates nearby water and enhances natural healing power and immunity. Based on the effect. This effect is exhibited when the number of ions of 800 / cm ³ or more is generated in the air on average. The fiber product that has been subjected to the treatment for generating the negative ions is made by adhering the inorganic powder that generates the negative ions, but since it is difficult to prepare a dispersion liquid of the inorganic powder, the inorganic powder becomes a fiber product. It tends to adhere unevenly and reduces the commercial value of textile products. As a treatment method for improving this point to generate negative ions in a textile product, for example, a method for producing a fabric having inorganic fine particles adhered thereto (Japanese Patent Laid-Open No. 10-1957).
64) and a method for producing a fiber material to which fine powder of an inorganic material is fixed (JP-A-11-158769).

The former manufacturing method is a method in which a cloth is immersed in a processing solution containing fine particles of an inorganic substance that produces negative ions in the air and a binder resin, dehydrated and dried, and then heat treated. Examples of the binder resin used in this method include resins such as acrylic resins, urethane resins, melamine resins, ester resins and vinyl resins which have been conventionally used for fiber processing. The binder resin fixes the inorganic fine particles that generate negative ions to the cloth to improve the washing resistance. In the latter production method, a composition for a fiber material in which an inorganic fine powder for generating negative ions is dispersed in water with a solubilizer is added to a dye solution prepared by dispersing or dissolving a dye in water, and the mixture solution is used. It is a method of dyeing the fibers and at the same time fixing the fine powder of the inorganic material to the amorphous regions of the fibers. Examples of the solubilizer used in this method include anionic polymer dispersants such as maleic acid copolymers, sodium polyacrylate, and sodium polystyrene sulfonate. In this method, the inorganic fine powder that generates negative ions is solubilized in the same manner as a disperse dye to improve stability in water and to have an affinity with the polyester fiber that is an organic substance, so that the amorphous region of the fiber is It is fixed.

[0004]

However, JP-A-10-
In the production methods described in Japanese Patent Laid-Open No. 195764 and Japanese Patent Laid-Open No. 11-158769, when inorganic fine particles are fixed to a fiber product using a binder resin or a solubilizing agent,
In addition to the decrease in the amount of negative ions generated, the inorganic fine powder has a weak fixing force, which results in poor washing resistance. Further, when the fiber product is a wool fiber product, there is a problem that the texture is impaired due to the fixation of the inorganic fine particles by the binder resin, the wearing comfort is deteriorated, and the skin is uncomfortable. An object of the present invention is to provide a method for producing a wool fiber product which has high washing resistance and efficiently produces negative ions without impairing the texture.

[0005]

The invention according to claim 1 is
A treatment aqueous solution in which fine particles of an inorganic substance that generates negative ions in the air and wool and a keratinized wool-dissolved substance are dispersed are brought into contact with a wool fiber product, and the wool fiber product is dried, and then 100 to 180 ° C. 1 to 1 at the temperature of
This is a method characterized by heat treatment for 5 minutes. In the invention according to claim 1, the wool-dissolving substance, which is keratinized by dissolving the wool by the heat treatment, fixes the inorganic fine particles to the wool fiber product. By encapsulating the inorganic fine particles that generate negative ions in the aqueous solution, the inorganic fine particles are uniformly dispersed in the aqueous solution, and when the treated aqueous solution and the wool fiber product come into contact with each other, the wool soluble substance becomes the wool fiber. It firmly and uniformly adheres to the product to enhance the washing resistance of the inorganic fine particles. Further, due to the moisturizing property of the wool-dissolved substance, negative ions are efficiently generated from the inorganic fine particles. Furthermore, since the wool-dissolved substance adheres to the wool fiber product in the state of encapsulating the inorganic fine particles, the texture of the wool fiber product is not impaired.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. The wool fiber products of the present invention include loose wool, tops, threads, woven fabrics, knitted fabrics, felts, non-woven fabrics and the like made from wool fibers. The wool fiber products of the present invention include fiber products which are blended, woven or knitted with other fibers. At this time, the fiber product contains at least 10% by weight of wool fiber. The treatment aqueous solution of the present invention is an aqueous solution in which fine particles of an inorganic substance that generate negative ions in the air and a wool-dissolved substance that is keratinized by dissolving wool are dispersed. As inorganic fine particles that generate negative ions in the air, natural radioactive minerals that emit radiation such as radon, radium, and uranium, natural magnetic minerals that emit far infrared rays such as tourmaline, dragonstone, barley stone, and synthetic that emits far infrared rays Fine particles of artificial magnetic minerals such as zeolite, zirconium carbide, and Bincho charcoal. The inorganic fine particles are produced by pulverizing the above minerals to an average particle size of 0.01 to 50 μm, preferably 0.1 to 20 μm. If the particle size exceeds the upper limit, it becomes easy to desorb from the wool fiber, and if the particle size is less than the lower limit, the effect of generating negative ions becomes poor.

A wool-dissolving substance obtained by dissolving wool into keratin is produced, for example, by the following method. First, the protein constituting the wool, keratin, is added to an acidic aqueous solution of 2 to 5% by weight of hydrogen peroxide, peracetic acid, or formic acid at room temperature to 10%.
After hydrolyzing at 0 ° C. for about 30 minutes to 3 hours, this is washed with water and then decomposed in an alkaline aqueous solution such as caustic soda or aqueous ammonia. Next, keratose was extracted from this solution in a state similar to that when wool was constituted, and then the extracted keratose was cationized to give a cationized product of a quaternary ammonium salt having a long-chain alkyl group to give wool. Obtain dissolved material. The molecular weight of this wool-dissolving substance is in the range of 10,000 to 20,000. An example of this wool-dissolving substance is N- [2-hydroxy-3-chloride].
(Lauryldimethylammonio) propyl] hydrolyzed keratin, N- [2-hydroxy-3- (stearyldimethylammonio) propyl] hydrolyzed keratin chloride, N-chloride
[2-hydroxy-3- (stearyl diethylammonio)
Propyl] hydrolyzed keratin, N- [2-hydroxy chloride]
-3- (lauryldiethylammonio) propyl] hydrolyzed keratin and the like. The treated aqueous solution is 100% by weight of water
It is prepared by adding 1 to 30% by weight of the above inorganic fine particles and 1 to 30% by weight of the above wool-dissolving substance and mixing them uniformly. A fluororesin-based water repellent such as polyfluoroacrylate may be further added to the treatment aqueous solution of the present invention.
By adding this water repellent, the treated wool fiber product has a water repellent effect.

Further, there are the following four types of methods for bringing the treated aqueous solution of the present invention into contact with the wool fiber product. First
In this method, the treated aqueous solution is stored in a padding tank, and the wool fiber product is immersed in this tank at the same time as padding (deliquoring).
After that, this wool fiber product is pre-dried and further heat-treated (curing) at high temperature. Pad dry cure (Pa
d-Dry-Cure) method. The second method is a method in which a wool fiber product is filled and fixed in a treatment tank, a treatment aqueous solution is circulated and supplied in the tank, dehydrated and dried, and then heat treated. This method is suitable when the wool fiber product is loose, top or yarn. The third method is a spray method in which the surface of the wool fiber product is sprayed with a treatment aqueous solution by means of a spray nozzle, and then steam or dry heat is applied to the surface. The fourth method is a coating method in which the surface of the wool fiber product is coated with a treatment aqueous solution by a method such as roll coating and then treated by applying steam or dry heat. In the first to fourth methods, when the wool fiber product is a dyed product, the treatment of the wool fiber product is performed after dyeing.

The heat treatment conditions after drying the wool fiber product of the present invention are 100 to 180 ° C. and 1 to 15 minutes. 10
If the temperature is lower than 0 ° C or less than 1 minute, the inorganic fine particles are not sufficiently fixed to the wool fiber, and if the temperature exceeds 180 ° C or 15 minutes, discoloration or reduction in strength of the wool fiber occurs. Preferably 140-
It is 160 degreeC and 1-3 minutes. By this heat treatment, the wool-dissolved substance is solidified, and the inorganic fine particles firmly adhere to the wool fiber using the wool-dissolved substance as an adhesive medium.

[0010]

EXAMPLES Next, examples of the present invention will be described together with comparative examples. <Example 1> A wool gabardine fabric woven with warp yarns and weft yarns of 100% wool of 60 count each was prepared. The dough was scoured, dyed with an acid dye, and then dehydrated and dried. Next, a treated aqueous solution having the following composition 1 was stored in a padding tank, and the dyed gabardine was dipped in the tank and simultaneously padded. (Composition 1 of treated aqueous solution) ・ N- [2-humanoxy-3- (lauryldimethylammonio) propyl] hydrolyzed keratin, 5% by weight of a dispersion solution of a wool-dissolving substance consisting of hydrolyzed keratin, 5% by weight ・ with an average particle size of 2 μm Tourmaline particles 5% by weight Water 90% by weight In this padding, gabardine was uniformly impregnated with 60% by weight of the cloth. Pre-dry the padded gabardine at 105 ° C for 5 minutes and then at 160 ° C for 2 minutes.
Heat treatment (curing) was performed for a minute.

<Example 2> The same gabardine fabric as in Example 1 was used, dyed in the same manner, and then padded with a treatment aqueous solution having the following composition 2 in the same manner as in Example 1. (Composition 2 of treated aqueous solution) ・ N- [2-humanoxy-3- (lauryldimethylammonio) propyl] hydrolyzed keratin 5% by weight dispersed aqueous solution of wool-dissolving substance consisting of keratin 5% by weight ・ Average particle size of 2 μm Fine particles of tourmaline 5% by weight-Fluorine resin dispersion liquid (Scotchguard FC-214, Sumitomo 3M) 3% by weight-87% by weight of water Predried in the same manner as in Example 1 and then heat treated.

Comparative Example 1 The same gabardine fabric as in Example 1 was used, dyed in the same manner, and then dehydrated and dried. afterwards,
I did nothing. <Comparative Example 2> The same gabardine fabric as in Example 1 was used, dyed in the same manner, and then treated with a treatment aqueous solution having the following composition 3 in Example 1
Padded as well. (Composition 3 of treatment aqueous solution) 5% by weight of maleic anhydride copolymer (reagent) 5% by weight of tourmaline fine particles having an average particle diameter of 2 μm 90% by weight of water Heat treatment after preliminary drying as in Example 1 did.

<Comparison Evaluation> Examples 1, 2 and Comparative Example 1,
With respect to the gabardine cloth obtained in 2, the performance regarding generation of negative ions was measured. Here, the ion counter and the gabardine cloth sample are placed in an acrylic box that does not allow electromagnetic waves to pass therethrough, and placed 10 cm apart from each other. The temperature inside the box is set to 20 ° C., the relative humidity is set to 65%, and the number of ions generated from the sample is measured for 2 minutes with no air flow. The results are shown in Table 1 below. In Table 1, dry cleaning means commercial dry cleaning. The shaking state means a state in which only the upper edge of the sample is held and the sample is shaken once per second.

[0014]

[Table 1]

As is clear from Table 1, in the untreated Comparative Example 1, the number of negative ions after the heat treatment was small, and after dry cleaning, the negative ions were below the detection lower limit value. Further, in Comparative Example 2 in which tourmaline fine particles were attached together with the maleic anhydride copolymer, the average value of the number of negative ions in the stationary state was the same as in Example 2, but
The number of negative ions in the shaken state was smaller than that in Example 2. In particular, the number of negative ions in the shaken state after dry cleaning was greatly reduced as compared with Example 2. On the other hand, in Examples 1 and 2, as compared with Comparative Example 2, the number of negative ions after the heat treatment was relatively large, and the maximum value was extremely large especially in the shaking state. After the dry cleaning, the degree of decrease in the number of negative ions was smaller than that in Comparative Example 2. In Examples 1 and 2, the average value of the number of negative ions in the shaken state was 800 / cm ³ or more, and it was found that the negative ion effect was sufficiently exhibited.

[0016]

As described above, according to the present invention, the fine particles of the inorganic substance that generate negative ions in the air are encapsulated by the wool-dissolving substance and uniformly dispersed in the treatment aqueous solution. When the aqueous solution and the wool fiber product come into contact with each other, the wool-dissolved substance firmly and uniformly adheres to the wool fiber product to enhance the washing resistance of the inorganic fine particles. Further, due to the moisturizing property of the wool-dissolved substance, negative ions are efficiently generated from the inorganic fine particles. Furthermore, since the wool-dissolved substance adheres to the wool fiber product while enclosing the inorganic fine particles, the texture of the wool fiber product is not impaired.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomio Abe, No. 3 Kawahigashi, Kojima Nakajima, Onishi City, Aichi Prefecture, Kinki Kogyo Co., Ltd. (56) References Japanese Patent Laid-Open No. 10-195764 (JP, A) Kaihei 11-200242 (JP, A) JP 64-66108 (JP, A) JP 8-35176 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06M 11 / 79 D06M 15/15 A61L 9/22 D06M 101: 12

Claims (3)

(57) [Claims] 1. A treatment aqueous solution in which fine particles of an inorganic substance that generate negative ions in the air and a wool-dissolving substance that is keratinized by dissolving wool are dispersed and a wool fiber product are brought into contact with each other,
A method for producing a wool fiber product that generates negative ions, characterized in that the wool fiber product is dried and then heat-treated at a temperature of 100 to 180 ° C. for 1 to 15 minutes. 2. The method according to claim 1, wherein the fine particles of an inorganic substance that generates negative ions are fine particles of a natural radioactive mineral that emits radiation, a natural magnetic mineral that emits far infrared rays, or an artificial magnetic mineral that emits far infrared rays. 3. A wool-dissolving substance is N- [2-hydroxy chloride.
-3- (lauryldimethylammonio) propyl] hydrolyzed keratin, N- [2-hydroxy-3- (stearyldimethylammonio) propyl] chloride keratin chloride, N- [2-hydroxy-3- (stearyldiethyl chloride) chloride The production method according to claim 1, which is ammonio) propyl] hydrolyzed keratin or N- [2-hydroxy-3- (lauryldiethylammonio) propyl] hydrolyzed keratin chloride.