JP2020002508A - Treatment agent for suppressing house dust scattering - Google Patents

Abstract

To provide a treatment agent for suppressing house dust scattering, that can suppress the scattering of house dust such as mite-derived allergen substance by making the gaps between fibers dense for fiber products such as bedding sheets.SOLUTION: By treating fiber product such as bedding sheets with polyvinyl alcohol and/or modified polyvinyl alcohol, the gaps between fibers are made dense to the extent where house dusts such as mite-derived allergen substances are hard to pass through, and the house dust scattering can be suppressed.SELECTED DRAWING: None

Description

  The present invention relates to a processing agent for suppressing scattering of house dust. More specifically, the present invention relates to a processing agent for scattering house dust, which can suppress scattering of house dust, such as allergen substances derived from mites, by making the gaps between fibers finer for fiber products such as bedding sheets.

  Mites often invade bedding such as futons and pillows, and house dust emitted from the inside of the bedding and scattered may contain allergen substances derived from mites. As described above, the number of people who cause allergic symptoms such as cough, stuffy nose, sneezing, and itchy eyes due to the house dust scattered from the bedding is increasing, and countermeasures against the house dust scattered from the bedding are required.

  2. Description of the Related Art Conventionally, bedding sheets in which fibers are densely woven and gaps between fibers are made fine so that house dust such as allergen substances derived from mites cannot pass therethrough have been developed and used for measures against house dust scattering. However, in order to densify the gap between fibers to such an extent that house dust cannot pass through, a special manufacturing method of weaving ultrafine fibers at a high density is required, and there is a disadvantage that the product cost is high. In addition, in the measures using such special bedding sheets, replacement of the bedding sheets is required, and the burden on the user increases. Furthermore, such special bedding sheets are mostly made of synthetic fiber, and have the drawback that they cannot be used as a countermeasure against house dust in natural fiber bedding sheets.

  On the other hand, by treating the bedding sheets with a special waterproofing agent used in the industrial manufacturing process of textile products, it is possible to close the gaps between the fibers, but such treatment is not sufficient for ventilation of the bedding sheets. It is not suitable for bedding sheets because it loses sex.

  Traditionally, the focus has been on taking measures against house dust in the bedding sheet manufacturing stage, and it can be easily used at home. No study has been conducted on a treating agent that can be applied.

  An object of the present invention is to provide a processing agent for suppressing scattering of house dust, which is capable of suppressing scattering of house dust such as a tick-derived allergen substance by densifying the gaps of fibers with respect to a fiber product such as bedding sheets. That is.

  The inventor of the present invention has conducted intensive studies to solve the above-described problems. As a result of treating fiber products such as bedding sheets with polyvinyl alcohol and / or modified polyvinyl alcohol, house dust such as allergen substances derived from mites has passed. It has been found that the gap between the fibers becomes dense to the extent that it is difficult, and that scattering of house dust can be suppressed. The present invention has been completed by further study based on such knowledge.

That is, the present invention provides the following aspects of the invention.
Item 1. A treatment agent for suppressing scattering of house dust, comprising a polyvinyl alcohol and / or a modified polyvinyl alcohol.
Item 2. Item 2. The processing agent for suppressing scattering of house dust according to Item 1, which is used for processing bedding sheets.
Item 3. Item 3. The treatment agent for suppressing scattering of house dust according to Item 2, wherein the bedding sheets are bedding sheets used by a person having allergic symptoms.
Item 4. A method for suppressing the scattering of house dust from textile products,
A method for suppressing house dust scattering, in which a fiber product is treated with a treating agent containing polyvinyl alcohol and / or modified polyvinyl alcohol.

  According to the treatment agent of the present invention, by a simple method of spraying, coating, dipping, etc., on textiles such as bedding sheets, the textiles are reduced to a range in which house dust such as mite-derived allergen substances hardly pass. The gaps between the fibers can be made denser, so that transmission of house dust such as mites and dead bodies thereof can be suppressed, and the scattering of the house dust can be suppressed.

  In addition, the treatment agent of the present invention can make the gaps between the fibers of the textile product dense regardless of the type of the constituent fibers of the textile product. Again, house dust measures can be taken.

FIG. 4 is a schematic diagram of first to third units created in a permeability test in Test Example 1.

1. The treating agent for suppressing scattering of house dust The treating agent of the present invention is a treating agent used for suppressing scattering of house dust, and is characterized by containing polyvinyl alcohol and / or modified polyvinyl alcohol. Hereinafter, the treatment agent of the present invention will be described in detail.

[Polyvinyl alcohol and / or modified polyvinyl alcohol]
The present invention uses polyvinyl alcohol and / or modified polyvinyl alcohol in order to make the gaps between fibers in a fiber product in which scattering of house dust is required. In the present invention, when simply described as “polyvinyl alcohol”, it refers to unmodified polyvinyl alcohol.

  The degree of saponification of the polyvinyl alcohol and / or modified polyvinyl alcohol used in the present invention is not particularly limited, but is, for example, 85 to 100 mol%, preferably 87 to 97 mol%, and more preferably 87 to 90 mol%. Is mentioned. The saponification degree is a value determined in accordance with JIS K6726: 1994 “Polyvinyl alcohol test method”.

  The type of the modified polyvinyl alcohol is not particularly limited. For example, cation modification such as quaternary ammonium modification, tertiary amino group modification, imide group modification, sulfonium modification; carboxylic acid modification, sulfonic acid modification, phosphorus Anion modification such as acid modification; alkyl group modification, ethylene oxide group modification, silyl group modification, and other modifications such as thiol group. Among these modified polyvinyl alcohols, preferred are cation-modified polyvinyl alcohols, and more preferred are quaternary ammonium-modified polyvinyl alcohols.

  In the treatment agent of the present invention, one kind may be selected from polyvinyl alcohol and modified polyvinyl alcohol, or two or more kinds may be used in combination.

  Among these polyvinyl alcohols and modified polyvinyl alcohols, from the viewpoint of further improving the effect of suppressing the scattering of house dust, preferably polyvinyl alcohol and cation-modified polyvinyl alcohol, more preferably polyvinyl alcohol and quaternary ammonium-modified polyvinyl alcohol Particularly preferably, polyvinyl alcohol is used.

  Since polyvinyl alcohol and modified polyvinyl alcohol are known and commercially available, commercially available polyvinyl alcohol and / or modified polyvinyl alcohol can be used in the treatment agent of the present invention.

  The concentration of polyvinyl alcohol and / or denatured polyvinyl alcohol in the treatment agent of the present invention may be appropriately set according to the treatment method of the treatment agent and the like so as to satisfy the use amount described below.

  For example, in a case where the treatment agent of the present invention is applied to a fiber product to be treated as it is without being diluted (hereinafter sometimes referred to as “non-concentrated type”), the present invention The concentration of the polyvinyl alcohol and / or modified polyvinyl alcohol in the treating agent is, for example, 0.00001 to 5% by weight, preferably 0.0001 to 5% by weight, more preferably 0.001 to 5% by weight, and still more preferably 0 to 5% by weight. 0.01 to 3% by weight, particularly preferably 0.1 to 1% by weight.

  Further, for example, in a case where the treatment agent of the present invention is applied to a fiber product to be treated after being diluted with water (hereinafter, also referred to as “concentration type”), the present invention The concentration of polyvinyl alcohol and / or denatured polyvinyl alcohol in the treating agent according to the dilution ratio set so that the concentration after dilution falls within the range of the concentration of polyvinyl alcohol and / or denatured polyvinyl alcohol in the non-concentrated type. May be set appropriately. When the treating agent of the present invention is of a concentration type, the dilution factor to be set is, for example, about 5 to 2000 times, preferably 10 to 500 times, and more preferably 100 to 300 times.

[Aqueous resin]
The treating agent of the present invention may contain an aqueous resin in addition to polyvinyl alcohol and / or modified polyvinyl alcohol. When the treating agent of the present invention contains a water-based resin, it is possible to further improve the effect of suppressing the scattering of house dust by making the gaps between the fibers of the fiber product more dense.

  The aqueous resin is a resin that can be dispersed in water, such as an emulsion or a dispersion. The water-based resin is emulsified or dissolved, and is provided with a self-emulsifying property by binding a polymer having no emulsifiable or water-soluble properties, forcibly emulsifying using a surfactant or the like, and a hydrophilic segment. Self-emulsifying resins obtained by emulsifying polymers and water-soluble resins obtained by dissolving water-soluble polymers are used. In the present invention, any of these types of aqueous resins may be used.

  Specific examples of the constituent resin of the aqueous resin include urethane resin, acrylic resin, silicone resin, epoxy resin, olefin resin, polyester resin, polyether resin, polycarbonate resin, vinyl resin, fluororesin, and natural rubber. .

  In the present invention, the water-based resin may be used alone or as a blend of two or more. For example, two or more types of aqueous resins having different emulsification or dissolution types may be used by blending, or two or more types of aqueous resins having different constituent resins may be used by blending.

  Among these aqueous resins, from the viewpoint of further improving the effect of suppressing the scattering of house dust, a urethane resin, more preferably a forced emulsification type urethane resin, and a self-emulsification type urethane resin are preferred.

  The type of the water-based urethane resin is not particularly limited, but is preferably an ether-based urethane resin, an ester-based urethane resin, and more preferably a forced emulsifying ether, from the viewpoint of further improving the effect of suppressing the scattering of house dust. Urethane resins, forced emulsification ester urethane resins, and self-emulsification ester urethane resins. The ether-based polyurethane resin is urethane in which the main component (80 mol% or more, preferably 90 mol% or more, and more preferably 100 mol%) of the polyol constituting the urethane is a polyether polyol. In addition, the ester urethane resin is urethane in which the main component (80 mol% or more, preferably 90 mol% or more, more preferably 100 mol%) of the polyol constituting the urethane is a polyester polyol.

  Since aqueous resins are known and commercially available, commercially available aqueous resins can be used in the treatment agent of the present invention.

  In the case where an aqueous resin is contained in the treating agent of the present invention, the concentration thereof is not particularly limited, and may be appropriately set according to the non-concentrated type or the concentrated type. For example, polyvinyl alcohol and / or modified polyvinyl The amount of the constituent resin of the aqueous resin may be 10 to 1,000,000 parts by weight, preferably 15 to 100,000 parts by weight, more preferably 30 to 20,000 parts by weight, based on 100 parts by weight of alcohol. In the present invention, the constituent resin of the aqueous resin refers to the resin material itself obtained by removing the solvent from the aqueous resin.

[Aqueous base]
The treating agent of the present invention contains, as a substrate, an aqueous base such as water or a monohydric lower alcohol.

  Examples of the monohydric lower alcohol include monohydric alcohols having 2 to 5 carbon atoms such as methanol, ethanol, propanol, isopropanol and butanol.

  These aqueous bases may be used alone or in combination of two or more.

  Among these aqueous substrates, water is preferable.

  The concentration of the aqueous base material in the treatment agent of the present invention is not particularly limited as long as it occupies the remainder excluding the polyvinyl alcohol and / or modified polyvinyl alcohol and other additives added as necessary.

[Other additives]
The treating agent of the present invention may contain other additives in addition to the components described above, as long as the effects of the present invention are not impaired. Examples of such additives include a fragrance, a deodorant, a surfactant, an alcohol, an antibacterial agent, a preservative, a thickener, a stabilizer, a pH adjuster, and a colorant.

[Processing target / processing method]
When the fiber product is treated with the treating agent of the present invention, the gaps between the fibers are clogged with the aqueous resin and the fibers become denser, so that house dust including allergen substances such as mites and their dead bodies cannot pass through. The treating agent is used for the purpose of suppressing scattering of house dust.

  Fiber products to be treated by the treatment agent of the present invention are not particularly limited as long as the suppression of house dust scattering is required. For example, beddings such as futons and pillows often contain mites therein, and allergens such as mites and their dead bodies are easily scattered. Therefore, bedding sheets used as covers for bedding use the allergen substances. This is a preferable example of a fiber product that is strongly required to suppress scattering of (house dust). Therefore, as a suitable object to be treated by the treatment agent of the present invention, bedding sheets used as covers for bedding such as futons, pillows and the like can be mentioned.

  The type of the constituent fiber of the fiber product to be treated by the treatment agent of the present invention is not particularly limited, and may be any of a synthetic fiber and a natural fiber. Conventionally, in view of the fact that there has been no effective house dust countermeasure for textile products containing natural fibers (bedding sheets and the like), a preferred example of a treatment target of the treatment agent of the present invention is a textile product containing natural fibers ( In particular, bedding sheets containing natural fibers) can be mentioned.

  In a fiber product containing natural fibers, the usage rate of the natural fiber is not particularly limited. For example, among the constituent fibers of the fiber product, the natural fiber is 35% by weight or more, preferably 50% by weight or more, more preferably 80% by weight or more. % Or more, particularly preferably 100% by weight.

  The treating agent of the present invention is used by spraying, applying or dipping the textile to be treated. More specifically, if the treating agent of the present invention is a non-concentrated type, the treating method of the present invention may be a method of containing the treating agent of the present invention in a spray container and spraying it onto a fiber product. And a method of applying the treating agent of the present invention to a textile using an applicator, and a method of dipping the textile in the treating agent of the present invention. Further, if the treatment agent of the present invention is a concentrated type, as a treatment method with the treatment agent of the present invention, after diluting the treatment agent of the present invention with water to a predetermined dilution ratio, the non-concentration There is a method of treating a fiber product in the same manner as the type. Further, when the treating agent of the present invention is of a concentration type, a washing machine may be used to perform dilution and immersion of the fiber product to a predetermined dilution ratio in a washing tub.

The amount of the treatment agent of the present invention may be appropriately set according to the type of the fiber product to be treated. For example, about 0.01 mg of polyvinyl alcohol and / or modified polyvinyl alcohol per 1 cm ^{2 of} the fiber product As described above, the amount may be set so as to be preferably about 0.05 to 0.02 mg, more preferably about 0.1 to 1 mg.

More specifically, a treatment agent non-enriched type of the present invention, in the case of spraying or coating the textile, fiber products 1 cm ² per least about 0.01 ml, preferably 0.05 to 0. About 02 ml, more preferably about 0.1 to 1 ml, may be sprayed or applied. Further, when the treating agent of the present invention is a non-concentrated type and is impregnated into a fiber product, the weight ratio is about 10 times or more, preferably about 50 to 300 times, more preferably 100 times with respect to the fiber product. What is necessary is just to use about 200 times the treating agent. Further, when the treating agent of the present invention is a concentrated type, it may be diluted with water so as to have a predetermined dilution ratio, and used in the same amount as the non-concentrated type.

  The fiber product treated with the treating agent of the present invention may be dried as it is.

2. The method for suppressing the scattering of house dust The method for suppressing scattering of house dust according to the present invention is a method for suppressing the scattering of house dust from textile products. The textile product is treated with a treating agent containing polyvinyl alcohol and / or modified polyvinyl alcohol. It is characterized by the following.

  In the suppression method of the present invention, the type and concentration of the polyvinyl alcohol and / or modified polyvinyl alcohol to be used, other contained components, the type of the target fiber product, the treatment method and the amount of the treatment agent, and the like are described in the above “1. .A treatment agent for suppressing scattering of house dust ".

  Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to these examples.

The trade names, compositions, sources, and the like of the aqueous resin and polyvinyl alcohol used in the following test examples are as follows.
-Polyvinyl alcohol A : trade name "Kuraray Poval 22-88 (PVA-217)" (manufactured by Kuraray Co., Ltd.), partially saponified polyvinyl alcohol (degree of saponification 87 to 89 mol%)
-Polyvinyl alcohol B : trade name "Kuraray Poval 27-96 (PVA-CST)" (manufactured by Kuraray Co., Ltd.), completely saponified polyvinyl alcohol and partially saponified polyvinyl alcohol (degree of saponification 95.5 to 96.5 mol%) )
-Quaternary ammonium-modified polyvinyl alcohol : trade name "GOHSENX K-434" (manufactured by Nippon Synthetic Chemical Industry Co., Ltd.), quaternary ammonium-modified partially saponified polyvinyl alcohol
-Forced emulsification type ester-based urethane resin : trade name "Superflex E-2000" (Daiichi Kogyo Seiyaku Co., Ltd.), forced emulsification type water-based resin containing 50% by weight of ester-based urethane resin and 50% by weight of water

Test example 1
The treatment agents shown in Tables 1 and 2 were prepared, and were subjected to the following permeability test.

  Attached white cloth (cotton Kanakin No. 3 based on JIS L 0803) for dye fastness test was cut into 10 cm × 10 cm to prepare a test cloth. After immersing the test cloth in 50 ml of the treating agent for 7 minutes at room temperature, the test cloth was taken out, squeezed lightly, spread and dried to obtain a test cloth after the treatment.

  1 g of silica sand No. 9 (central particle size: 0.05 mm) is placed in a plastic cylindrical case (inner diameter: 3 cm, height: 5 cm), and the opening of the cylindrical case is treated with a test cloth and fixed with a rubber band. A first unit was prepared (A in FIG. 1). Four first units were made of the same treated test cloth.

  Next, the outer bottom of the first unit (the outer bottom of the cylindrical case) was adhered to the inner bottom of a plastic cup (inner diameter: 7 cm, height: 12 cm) with double-sided tape to prepare a second unit (B in FIG. 1). ). Four second units were made of the same treated test cloth.

  Next, with the opening of the plastic cup of the second unit facing down, the four second units are vertically two and two horizontally (the shortest distance between the ends of two adjacent second units is After that, one flat plate (plastic, 18 cm in height, 19 cm in width, and 4 g in weight) was placed on the four second units (the outer surface of the bottom of the plastic cup) and fixed. A circular cylinder (inner diameter 8 cm, height 30 cm) was fixed to the center portion of the flat plate to form a third unit (C in FIG. 1).

A 140 ml cylindrical container filled with water and capped (weight 230 g) was dropped five times from the upper part of the round cylinder of the third unit, and an impact was applied to the third unit. The weight of the first unit was measured before the impact and after five impacts. The value obtained by subtracting the weight of the first unit after five impacts from the weight of the first unit before applying the impact is calculated as the permeation amount, and the average value of the permeation amount in the four cut test cloths is obtained. Was. As a control, a test cloth not treated with the treating agent (untreated test cloth) was used to determine the average value of the permeation amount in the same manner as described above. Further, the block rate was calculated according to the following calculation formula.

  FIG. 1 shows a schematic diagram of the first to third units created in this test. FIG. 1 is a schematic diagram, and does not exactly correspond to the actual dimensions of each member, but the actual dimensions are as described above.

  The results obtained are shown in Tables 1 and 2. As a result, the test cloth treated with the treatment agent containing polyvinyl alcohol or modified polyvinyl alcohol had a low permeation amount of silica sand and a high block rate. Since the silica sand used in this test has a center particle size of 0.05 mm and most of the mites and their dead bodies are larger than 0.05 mm, the test cloth treated with the treatment agent containing polyvinyl alcohol or modified polyvinyl alcohol is not used. It can be said that the transmission of house dust such as ticks and their dead bodies can be sufficiently suppressed.

  The surfaces of the test cloth treated with the treating agents of Examples 1 to 18 and the untreated test cloth were observed at a magnification of 200 with a scanning electron microscope (SEM). It was confirmed that the treated test cloth was denser due to clogging of the fibers as compared with the untreated test cloth.

Claims (4)

  A treatment agent for suppressing scattering of house dust, comprising a polyvinyl alcohol and / or a modified polyvinyl alcohol.   The processing agent for suppressing scattering of house dust according to claim 1, which is used for processing bedding sheets.   The treatment agent for suppressing scattering of house dust according to claim 2, wherein the bedding sheets are bedding sheets used by a person having an allergic symptom. A method for suppressing the scattering of house dust from textile products,
A method for suppressing house dust scattering, in which a fiber product is treated with a treating agent containing polyvinyl alcohol and / or modified polyvinyl alcohol.