JP4362708B2 - Cellulosic fiber or fiber product that has the ability to prevent pollen adhesion - Google Patents

Description

  The present invention relates to a cellulosic fiber or fiber product having an ability to prevent pollen adhesion.

  Hay fever is a disease that is difficult to cure once it develops, and the number of people with hay fever is increasing year by year. An effective treatment method for hay fever has not yet been established.

  If you go out when a lot of pollen such as cedar pollen is flying, pollen adheres to clothing and pollen that adheres to clothing is brought indoors. Therefore, in order to alleviate the pathology of hay fever, it is desirable that the pollen adhering to the clothes be scraped off before entering the room. Also, if the futon is dried when a lot of pollen is flying, the pollen adheres to the futon and the pollen adhering to the futon is brought indoors. Therefore, it is desirable not to dry the futon indoors.

  To date, as a fiber to which pollen is difficult to adhere, for example, a fiber described in Patent Document 1 is known.

  In Patent Document 1, the vertical direction of the average deviation (MMD) of the friction coefficient of the fabric surface by the KES method is 0.04 or less, and the vertical direction of the average deviation (SMD) of the surface roughness. The fiber structure in which each value in the horizontal direction is 4.0 μm or less is described. The material of this fiber is mainly a synthetic fiber, and polyester fiber, polyamide fiber and polyolefin fiber are preferred.

  However, the fibers used in the invention described in Patent Document 1 are limited to fibers having a small surface friction coefficient, that is, fibers having a smooth surface.

To date, a technology for producing a fiber product that is difficult to adhere pollen using a fiber having a non-smooth surface, for example, a cellulosic fiber such as cotton, has not been developed yet.
JP 2003-227070 A

  This invention makes it a subject to provide the cellulosic fiber or textiles which has pollen adhesion prevention ability.

As a result of earnest research to develop cellulosic fibers or fiber products having the ability to prevent pollen adhesion, the present inventors have developed a fiber in which the above problems have been solved by adhering or impregnating alumina fine particles to cellulosic fibers. Or it has been found that a textile product can be obtained. Furthermore, the present inventors can solve the above-mentioned problems and obtain a fiber or fiber product having more excellent performance by attaching or impregnating the alumina fine particles and the swellable clay mineral to the cellulosic fiber. I found out. The present invention has been completed based on such findings.
1. The present invention provides a cellulosic fiber or fiber product formed by adhering or impregnating alumina fine particles.
2. The present invention provides the fiber or fiber product according to claim 1, wherein the average particle size of the alumina fine particles is about 1 μm or less.
3. The present invention provides a cellulosic fiber or fiber product formed by adhering or impregnating alumina fine particles and a swellable clay mineral.
4). The present invention provides the fiber or fiber product according to claim 3, wherein the average particle size of the alumina fine particles is about 1 μm or less.
5. The present invention provides the fiber or fiber product according to claim 3 or 4, wherein the swellable clay mineral is a smectite clay.

  The fiber of the present invention is a cellulosic fiber to which alumina fine particles are attached or impregnated.

  The fiber of the present invention has an excellent ability to prevent pollen adhesion. The kind of pollen used as object is not limited. Examples thereof include grass pollen such as rice pollen and camodium pollen, asteraceae pollen such as ragweed pollen and mugwort pollen, cedar pollen, cypress pollen, alder pollen, birch pollen and the like.

  In this invention, a cellulose fiber is a conventionally well-known cellulose fiber, for example, natural celluloses, such as cotton and hemp, or these blended products. The cellulose fibers of the present invention include, in addition to these fibers, primary processed products of these fibers, such as yarns, knits, woven fabrics, knitted fabrics, and nonwoven fabrics. In particular, in the case of cotton, raw cotton itself, caustic mercerized cotton, cotton treated with liquid ammonia, and the like are also included in the cellulose fiber of the present invention.

  In the present invention, at least one selected from synthetic fibers, semi-synthetic fibers, and regenerated fibers can be blended, twisted, and blended with the cellulose fibers of the present invention.

  As the synthetic fiber, conventionally known ones can be widely exemplified, and examples thereof include polyester, liquid crystal polyester, polyamide, liquid crystal polyamide, acrylic, polyethylene, polypropylene, spandex and the like.

  As the semi-synthetic fiber, conventionally known fibers can be widely exemplified, and examples thereof include diacetate and triacetate.

  Examples of regenerated fibers include widely known ones such as rayon, polynosic, and cupra.

  In the present invention, the textile product means a product obtained by further processing the above-described fiber, for example, a clothing such as an outer garment, a middle garment, an inner garment, a bedding product, or an interior. Specifically, the textile products of the present invention include coats, jackets, trousers, skirts, shirts, knitted shirts, blouses, sweaters, cardigans, nightwear, underwear, supporters, socks, tights, hats, scarves, mufflers, and collars. , Gloves, clothing lining, clothing interlining, clothing batting, work clothes, lab coats, uniforms, prison clothing, school uniforms, curtains, futon mats, duvet cotton, pillowcases, sheets, mats, carpets, Bedding products such as towels, handkerchiefs, stuffed animals, sewing threads, embroidery threads, braided strings, straps, malls, fishing lines, fake bait products, products such as tags attached to products, paper products or non-woven fabric made from the above fibers, bags Examples include materials used for electronic products, building materials, and the like.

  The fiber or fiber product of the present invention is produced by attaching and / or impregnating alumina fine particles to the fiber or fiber product.

  Known alumina fine particles can be widely used as the alumina fine particles. The average particle size of the alumina fine particles is usually about 1 μm or less, preferably about 0.01 to 0.5 μm, more preferably about 0.02 to 0.2 μm. Here, the average particle diameter is determined by a dynamic light scattering method. For the measurement of the particle size distribution, for example, a dynamic light scattering type particle size distribution measuring device (LB-550 manufactured by Horiba, Ltd.) can be used.

In the present invention, the alumina fine particles are preferably adhered and / or impregnated in the fiber or fiber product of the present invention in an amount of about 0.01 to 10% by weight, preferably about 0.1 to 5% by weight. For example, the 1 m ² of the fabric of basis weight 150 g / m ^2, the alumina particles, usually about 15～15000Mg, preferably are attached and / or impregnation of about 150～7500Mg.

  In the fiber or fiber product of the present invention, the swellable clay mineral may adhere to and / or impregnate the fiber or fiber product together with the alumina fine particles.

  Such fibers are produced by adhering and / or impregnating fine alumina particles and swellable clay minerals to fibers or fiber products.

  As the swellable clay mineral, known materials can be widely used. Specific examples of the swellable clay mineral include, for example, smectite clays such as montmorillonite, beiderite, nontronite, hectorite, and saponite. Among these, montmorillonite, hectorite or saponite alkali metal salt or alkaline earth metal salt is preferred.

  The average particle size of the swellable clay mineral is usually about 0.01 to 5 μm, more preferably about 0.1 to 1 μm. Here, the average particle diameter is determined by the dynamic light scattering method, as with the alumina fine particles.

In the present invention, the swellable clay mineral is adhered and / or impregnated in the fiber or fiber product of the present invention in an amount of about 0.001 to 2% by weight, preferably about 0.01 to 0.5% by weight. Good. For example, the 1 m ² of the fabric of basis weight 150 g / m ^2, the swelling clay mineral, usually about 1.5～3000Mg, preferably are attached and / or impregnation of about 15～750Mg.

  In attaching and / or impregnating cellulose fine particles or fine alumina fine particles and swellable clay minerals to cellulose fibers or fiber products, conventionally known methods such as dipping, spraying, coating, and exhausting in bath are widely used. Can be applied.

  Hereinafter, the immersion method will be described in detail.

  What is necessary is just to set the alumina fine particle and swelling clay mineral density | concentration in a process liquid to the density | concentration computed from the squeeze rate of the process liquid and the required loading amount.

  In the present invention, it is preferable to employ a so-called dipping method in which cellulose fibers to be treated are dipped in a treatment solution containing alumina fine particles or a treatment solution containing a swellable clay mineral.

  The solvent constituting the treatment liquid may be an organic solvent, but it is preferable to use water as a solvent in consideration of safety and price. Accordingly, the treatment liquid is usually used in the form of an aqueous dispersion.

  The permeation rate of the treatment liquid into the cellulose fibers is sufficiently high, and there are no particular limitations on the immersion time and bath temperature. Usually, the immersion time is 0.1 to 300 seconds and the bath temperature is 10 to 40 ° C. The aperture varies depending on the product to be processed, and an appropriate aperture method and aperture ratio can be adopted for each. Usually, it is preferable that the drawing rate is 50 to 100%.

  After soaking and squeezing, drying is performed. Industrially, the drying temperature may be 40 to 200 ° C., and the time may be selected according to the temperature.

  When adhering or impregnating the alumina fine particles and the swellable clay mineral, the fiber or fiber product may be treated with a treatment liquid containing the swellable clay mineral and then treated with a treatment liquid containing the alumina fine particles, or alumina. You may process with the process liquid containing microparticles | fine-particles, and may then process with the process liquid containing a swellable clay mineral.

  In addition, the fiber product of the present invention can be produced by attaching and / or impregnating alumina fine particles or alumina fine particles and a swellable clay mineral to the fiber, and then producing the fiber product of the present invention according to a usual method.

  The fiber or fiber product of the present invention to which the alumina fine particles or alumina fine particles and the swellable clay mineral are attached or impregnated is further subjected to form-stabilization processing, flexible treatment processing, calender, as long as the effect of the present invention is not impaired. Processing etc. may be given.

  ADVANTAGE OF THE INVENTION According to this invention, a cellulosic fiber or fiber product which can hardly remove pollen and can remove most adhering pollen very easily is provided. Therefore, for example, most of the adhered pollen can be removed from the cellulosic fiber or fiber product simply by lightly tapping or tapping the fiber or fiber product to which the pollen is adhered.

  Cellulosic fibers or fiber products in which swellable clay minerals are adhered and / or impregnated with alumina fine particles are excellent in pollen adhesion preventing ability and have a pollen allergen adsorbing effect. Therefore, even if the pollen attached to the cellulosic fiber or the fiber product is not removed and the pollen allergen that causes allergy is eluted from the pollen, the pollen allergen is prevented from coming into contact with or entering the skin. be able to.

  The fiber or fiber product of the present invention has the performance (washing resistance) that the alumina fine particles and / or the swellable clay mineral hardly fall off from the fiber even after repeated washing, and the above-mentioned excellent performance The effect can be expressed.

  The present invention will be further clarified by the following examples and comparative examples.

Example 1
After scouring, bleaching and mercerizing a cotton fabric with a basis weight of 150 g / m ² , immersing it in a 2% aqueous dispersion of alumina fine particles (primary particle size 30 nm), squeezing with a mangle (squeezing rate: 70%), and drying at 100 ° C. The cotton fabric of the present invention was obtained.

This cotton fabric contained 1.4% by weight of alumina fine particles (2.1 g per 1 m ^{2 of} cotton fabric).

Example 2
After scouring, bleaching, and mercerizing a cotton fabric having a basis weight of 150 g / m ² , smectite clay (average particle size: 0.5 μm, trade name: Preshade 2A, manufacturing company name: Ichisha Yushi Kogyo Co., Ltd.) 10 After dipping in a% aqueous dispersion, the film was squeezed with mangle (squeezing ratio: 70%) and dried at 100 ° C. Next, this cotton fabric was dipped in a 2% aqueous dispersion of alumina fine particles (primary particle size 30 nm), squeezed with mangle (squeezing rate: 70%), and dried at 100 ° C. to obtain the cotton fabric of the present invention.

This cotton fabric contained 1.4% by weight of alumina fine particles (2.1 g / m ^{2 of} cotton fabric) and 0.28% by weight of smectite clay (0.42 g / m ^{2 of} cotton fabric).

Comparative Example 1
A cotton fabric having a basis weight of 150 g / m ² was subjected to scouring, bleaching, and mercerization treatment, dipping in water, drawing with a mangle (squeezing rate: 70%), and drying at 100 ° C. to obtain a cotton fabric.

Comparative Example 2
After scouring, bleaching, and mercerizing a cotton fabric having a basis weight of 150 g / m ² , smectite clay (average particle size: 0.5 μm, trade name: Preshade 2A, manufacturing company name: Ichisha Yushi Kogyo Co., Ltd.) 10 After dipping in a% aqueous dispersion, it was squeezed with mangle (squeezing rate: 70%) and dried at 100 ° C. to obtain a cotton fabric.

Test Example 1 (Sugi pollen shedding effect)
Each cotton fabric obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 was cut into a size of 40 mm in length and 65 mm in width to prepare 6 test cloths each (24 sheets in total).

  Three test cloths made from each cotton fabric obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 were used for the test as they were. In addition, three test cloths made from each cotton fabric obtained in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 were washed and used for the test. Washing is carried out using an aqueous solution in which Kao New Beads manufactured by Kao Corporation are dissolved at a rate of 1.5 g / liter, washing in a household washing machine at 40 ° C. for 10 minutes, then washing with water and drying. This cycle was repeated 10 times.

Each test cloth (40 mm × 65 mm) was placed in a desiccator having an internal volume of 490 cm ² and sealed. The cedar pollen was put into the pollen mater, the spray pipe of the mater was inserted into the side hole of the desiccator, and the cedar pollen was sprayed for 30 seconds. The amount of cedar pollen sprayed was 0.1 g per 30 seconds. After spraying, the desiccator was allowed to stand for 5 minutes to allow cedar pollen to settle. After spraying and standing 5 times, each test cloth was taken out from the desiccator.

  About each test cloth, the number of pollen adhering in the range of 1.4 mm x 1.8 mm was counted using the microscope (x200).

  Next, each test cloth to which cedar pollen adhered was beaten, and the number of pollen adhered after flapping was counted in the same manner as described above. The operation of knocking the test cloth is performed by attaching the test cloth to the back of an iron plate (30 cm × 30 cm × 5 mm) inclined at 60 ° with respect to the horizontal plane, and directly above the iron plate (30 cm above the test cloth). ) To drop 450 g of iron balls once.

  According to the following formula, pollen omission rate (%) (average value of 3 test cloths) was determined.

結果を表１に示す。

The results are shown in Table 1.

試験例２（スギ花粉アレルゲン吸着効果）
実施例２及び比較例１で得られた各綿織物を縦５ｍｍ、横８ｍｍの大きさ（重さ２００ｍｇ）に裁断し、試験布各５枚を準備した。

Test Example 2 (Sugar pollen allergen adsorption effect)
Each cotton fabric obtained in Example 2 and Comparative Example 1 was cut into a size of 5 mm in length and 8 mm in width (weight 200 mg) to prepare 5 test cloths each.

  Each test cloth was put into 5 ml of a cedar pollen allergen (the amount of pollen for about 900,000 cedar pollen), and then the extract was stirred for 60 minutes. Next, the cedar pollen allergen concentration in the extract was measured by a sandwich ELISA method, and the ratio of cedar pollen allergen adsorbed on each test cloth (cedar pollen allergen adsorption rate,%) was determined.

  The cedar pollen allergen adsorption rate of the test cloth of Example 2 was 80% (average value of five test cloths), and most of the cedar pollen allergen was adsorbed on the test cloth of Example 2. In contrast, the cedar pollen allergen adsorption rate of the test cloth of Comparative Example 1 was 20% (average value of 5 test cloths), and the cedar pollen allergen was hardly adsorbed on the test cloth of Comparative Example 1.

Test example 3 (Sugi pollen allergy suppression effect)
In Test Example 1, the test cloth after tapping was cut into a size of 15 mm square.

  Using these test cloths, an adult male (3 persons) with cedar pollen allergy was subjected to an allergen scratch test. That is, a wound was made on the forearm flexion side of an adult male to such an extent that the skin surface did not bleed with a needle, each test cloth was applied to that portion, and 0.1 ml of physiological saline was soaked from the test cloth. After 1 hour, the test cloth was peeled off, and after 2 hours, the condition of the skin was visually observed.

  0 if no erythema is observed on the skin, 1 if mild erythema is observed on the skin, 2 if moderate erythema is observed on the skin, 3 if severe erythema is observed on the skin, skin The case where erythema with edema was observed was determined as 4.

  The results are shown in Table 2.

Claims (1)

Cellulosic fibers or fiber products are treated with a treatment liquid containing swellable clay mineral and then treated with a treatment liquid containing alumina fine particles, or treated with a treatment liquid containing alumina fine particles, and then swellable. A method for producing a cellulosic fiber or fiber product having pollen adhesion preventing ability and pollen allergen adsorption effect by treatment with a treatment liquid containing clay minerals.