JP2003213541A - Pollen adhesion-preventing woven fabric and product of the pollen adhesion-preventing woven fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clothing woven fabric which hardly brings pollens into a house. <P>SOLUTION: This pollen adhesion-preventing woven fabric comprises a fabric made by using filaments having 44-220 dtex total fineness, 0.7-8 dtex monofilament fineness as both the warp and the weft. Spaces between adjacent warp yarns and those between adjacent weft yarns are ≤30 μm. The standard deviations of surface roughness of the surface of the fabric measured by KES method in longitudinal and lateral directions are ≤4.0 μm. Frictionally charged voltages in the longitudinal and lateral directions are ≤4 kV. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pollen adhesion preventing fabric.

[0002]

2. Description of the Related Art Once a hay fever develops, it develops almost every year between February and April when the cedar pollen is scattered, and it is a disease that does not completely cure. In addition to pollen pollen, many pollen such as cypress, rice, ragweed, alder trees become allergens and allergens occur throughout the year.Although there are fluctuations depending on the year, the amount of pollen scattering tends to increase year by year. ,
The treatment method is not established, either. It is also a serious problem for farmers who handle flowers and gardening enthusiasts who touch flowers as a hobby.

Conventionally, patients with hay fever have taken measures to avoid contact with pollen as much as possible. Although it is most effective not to be outdoors when pollen is scattered, it is difficult to do so, and as a possible measure, use a mask, glasses, goggles, hat, etc. to prevent pollen from touching your eyes, nose, and mouth when you go out. Has come. However, when you go indoors after going out, you will bring the pollen attached to your clothes outdoors. The current situation is that once pollen is brought indoors, it is difficult to take it outdoors. Therefore,
Clothes that are less likely to have pollen attached and that are less likely to enter between fibers of a woven fabric or in clothing are required.

As a garment to meet such a demand, a garment in which conductive fibers are used to prevent pollen from adhering due to static electricity has been commercialized. Once the pollen reaches the fiber surface, the pollen enters between the fibers or into clothes. There is a possibility.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fabric in which pollen is less likely to adhere and which is less likely to enter between fibers of a woven fabric or into clothing.

[0006]

The present invention employs the following means in order to solve the above problems. That is, the total fineness of both warp and weft is 44
〜220 decitex, single yarn fineness of 0.7-8 decitex filament yarn, the gap between adjacent warp yarns and the gap between adjacent weft yarns are both 30 μm or less, and the surface roughness of the fabric surface by KES method is The standard deviation of length is 4.0 μm or less in both the vertical and horizontal directions, and the frictional electrification voltage is 4 kV or less in both the vertical and horizontal directions.

Further, the present invention is a pollen adhesion-preventing textile product obtained by sewing the pollen adhesion-preventing textile.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention has made intensive studies on the above-mentioned problems, that is, a fabric having a structure in which pollen hardly adheres and which does not easily enter between fibers of a woven fabric and into clothing. It was clarified that such problems can be solved all at once by selecting the yarn fineness, the gap between the yarns, the standard deviation of the surface roughness by the KES method, and the friction electrification voltage in a specific range to produce a woven fabric. Is.

The pollen adhesion-preventing fabric of the present invention comprises filament yarns for both the warp yarn and the weft yarn. By using filament yarn, the surface of the fabric is less fluffy and has less fine irregularities than fabrics using spun yarn, so pollen is less likely to adhere and pollen is less likely to enter between fabric fibers.

Since woven fabric has a smoother surface and less unevenness than a knitted fabric, pollen is less likely to adhere thereto, and the binding force between yarns is strong, which is an effective structure for preventing pollen from entering between fibers or clothes. Is.

By setting the total fineness between 44 decitex and 220 decitex, it is soft as clothing,
It has moderate elasticity. Further, if the single yarn fineness is less than 0.7 decitex, pollen easily enters between the single yarn fibers, and if it is 8 decitex or more, recesses are formed on the surface of the fabric and pollen easily adheres.

Cedar pollen, which has the most pollinosis patients, has a substantially spherical shape and a diameter of about 25 to 35 μm, and other pollen also has a major axis of about 20 to 40 μm and an average of 30 μm. It is possible to prevent most pollen from getting into the clothing and adhering to inner garments or underwear by using a high-density woven fabric in which both the gap and the gap between adjacent weft threads are 30 μm or less. The gap between the threads can be measured by the method described later in the examples.

The pollen adhesion-preventing fabric of the present invention is a synthetic fiber or a natural fiber if it is made of filament yarn.
Any of recycled fibers may be used.

As the synthetic fiber, polyester fiber, polyaramid fiber or polyoefin fiber is preferable. Polyester fibers include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate and copolymerized polyester fibers containing these as a main component, and polyamide fibers include nylon 6 and nylon 66. And those obtained by copolymerizing the third component. Polyolefin fibers include polypropylene and polyethylene. The natural fiber is preferably silk or the like, and the recycled fiber is preferably viscose rayon or the like. The structure of the filament yarn woven fabric may be a flat structure, a twill structure, a satin structure, or a modified structure thereof, but it is preferably a vertical and horizontal single structure. More preferably, if the texture is flat, the surface of the dough is the smoothest, and pollen is unlikely to adhere.

Standard deviation of surface roughness (SM
By setting D) to 4.0 μm or less in both the vertical direction and the horizontal direction, there are few irregularities on the surface of the woven fabric, and it is difficult for pollen to adhere and it is difficult for the pollen to enter. The standard deviation (SMD) of the surface roughness of the present invention can be measured by the method described later in the examples.

Further, it is important that the fabric for preventing pollen adhesion of the present invention has a frictional electrification voltage of 4 kV or less in both the vertical and horizontal directions. By setting the friction electrification voltage to 4 kV or less, it becomes possible to prevent pollen adhesion due to static electricity. The friction charging voltage of 4 kV or less can be realized by using, for example, at least one of the warp yarn and the weft yarn, an antistatic synthetic fiber filament or a conductive synthetic fiber filament. It is also possible to impart an antistatic property by improving the antistatic process by finishing and to reduce the frictional electrification voltage to 4 kV or less. Antistatic treatment includes cationic surfactant, anionic surfactant, nonionic surfactant, amphoteric surfactant, organic amine salt, quaternary ammonium salt, inorganic salt alone or as a mixture. An inhibitor is fixed to the fiber surface. A combination of the above means may be adopted. Among them, it is preferable to use an antistatic synthetic fiber filament which is less likely to generate static electricity and has washing durability of antistatic performance, and in particular, an embodiment in which an antistatic agent is contained in the core portion of the core-sheath type composite fiber. Is more preferable because of high antistatic performance. The frictional electrification voltage can be measured based on JIS L1094B method (friction electrification voltage measurement method) as described later in Examples.

Among the filament yarns, in terms of preventing pollen adhesion, the processed yarn having a small crimped form is preferable to the processed yarn having a large crimped form because the woven fabric surface is smooth, and more preferably a raw yarn having no crimp is preferable. . However, depending on the aim and use, raw silk may not be as fashionable as an outer garment due to its texture like a lining. In that case, when the synthetic fiber filament yarn is made into a crimped yarn satisfying the following characteristics (1) to (4), it becomes a low crimped yarn having a smaller crimped form than a large false-twisted yarn having a crimped form. A fabric with a smoother surface and less pollen adherence. (1) Elongation is 20% or more and 50% or less, (2) Stretch recovery rate (CR) is 10% or more and 40% or less, (3) Crimp expression elongation rate (TR) is 0.5% or more and 25% or less. (4) The number of confounding is 4 or more and 50 or less.

The low crimped yarn described above is located at a position different from the point where the heating element and the yarn are separated from each other between the heating element and the temporary twisting tool after heating the undrawn thread of the synthetic fiber before twisting. It can be obtained by providing a twist preventing device and performing false false twisting using the twist preventing device as a twisting start point. A specific drawing of the drawing false twisting process is shown in FIG.

For the low crimped yarn, synthetic fibers made of a thermoplastic polymer such as polyethylene terephthalate (PET), polybutylene terephthalate and nylon are preferably used. Polyethylene terephthalate is preferable, and one containing an antistatic agent is more preferable, from the viewpoint that the yarn elongation and contraction properties can be obtained in a wide range.

Regarding the above characteristic condition (1), the elongation is 2
By setting it to 0% or more, it is possible to prevent the number of fluffs from increasing and the processability of weaving property is deteriorated, and by setting the elongation to 50% or less,
It is possible to prevent lack of distribution and strength.
The elongation is more preferably 25% or more and 40% or less.

For the above characteristic condition (2), CR is set to 1
By setting it to 0% or more, it is possible to prevent the shrinkage after being made into a woven fabric from becoming small and to have no bulge, and by setting it to 40% or less, the shrinkage after the dyeing and finishing process is suppressed, and the unevenness of the woven fabric surface becomes large and the pollen becomes large. It is possible to prevent the sticking. Preferable stretch recovery rate (CR) is 12% or more and 38%
It is the following. The expansion / contraction recovery rate (CR) can be measured based on JIS L1019T, as described later in Examples.

For the above characteristic condition (3), TR is set to 2
By setting the content to 5% or less, it is possible to suppress the development of crimps after dyeing and finishing the woven fabric, and thus to suppress the unevenness of the woven fabric surface, and to prevent the softness from being lowered and pollen to be easily attached. A more preferable crimp expression elongation rate (TR) is 15% or less. More preferably, it is 8% or less. Crimp expression elongation rate (T
R) can be measured by the method described later in the examples.

Regarding the above characteristic condition (4), by setting the number of intertwining to 50 or less, no entanglement remains after the step of dyeing and finishing, and it is possible to prevent the unevenness of the woven fabric from becoming large and pollen to be easily attached to deteriorate the quality. You can Further, when it is 4 or more, good releasing property can be maintained. The preferred number of entanglements is 5 or more and 40 or less. In addition, the number of confounding is JIS-L1013 (199), as described later in Examples.
It can be measured based on the provision of 2).

By sewing the pollen adhesion-preventing fabric of the present invention into a pollen adhesion-preventing textile product, pollens are less likely to adhere to the fibers even when going out under pollen generation, and pollens are less likely to enter between fibers or into clothing. Therefore, it is possible to prevent pollen from being brought indoors. As its mode, general women's / men's coat, blouson, windbreaker, blouse, shirt, skirt, slacks, etc., and windbreaker for sportswear, shirt, skirt, slacks, etc.,
Further, it can be preferably used for a coat for children's clothing, a blouson, a windbreaker, a blouse, a shirt, a skirt, a slacks, and a work apron, an arm cover, a blouson, a shirt, a skirt, a slacks and the like. It can also be used as a hay fever hat, gloves, scarves, and duvet covers.

[0025]

The present invention will be described in detail below with reference to Examples.
The present invention is not limited to these. The measuring method in the examples was according to the following method.

(1) Pollen adhesion preventive fabric A sample cut vertically 7 cm × horizontal 7 cm at a wrinkle-free portion was conditioned in a temperature control room of 20 ° C. × 65% Rh for 24 hours, and then simulated as 30 samples. A polyethylene bag containing 45g of Ishimatsuko (made by Tsuda Shoten), which is pollen (45
Inflate L) with temperature controlled room air and tie the mouth with a rubber band. Shake up and down 100 times at a speed of 1 time / sec based on the binding point. Take the test piece out of the bag and use a microscope to take 1
Magnify 50 times and take a picture, 76.5cm on the picture
Count the number of pseudo pollens attached to ² (7.5 cm x 10.2 cm). The average value of 5 sheets was defined as the number of pollen adhered. still,
The number of pollen adhered by the pseudo-pollen has a correlation with the number of adhered cedar pollen when the cedar pollen is scattered, and it has been confirmed that when the number of adhered pseudo-pollen is 200 or less, the pollen adherence is prevented.

(2) Measurement of the gap between yarns (μm) The woven fabric is magnified 150 times with a microscope, and the gap is not occupied by the warp yarn or the weft yarn. Was measured. If the gaps in the gap are not uniform due to the bulge of the multifilament, the maximum gap in the vertical and horizontal directions in the gap shall be taken.

(3) Average deviation of surface roughness (SMD) Using Kato Tech Co., Ltd. KES-FB4, vertical 20 cm
× Width of fabric cut to 20 cm at 20 ℃ × 65% RH
Humidify under the environment. A contact made by bending one piano wire having a diameter of 0.5 mm into a width of 5 mm is applied to the woven fabric having a tension of 20 gf / cm at a pressure of 10 gf. This contactor is crimped by a spring, and the spring constant is 25 gf. The pressure-contacted contact is horizontally moved at a constant speed of 0.1 cm / sec for a length of 2 cm for measurement. The standard deviation of the surface roughness in the vertical direction and the horizontal direction was measured by the above method, and the larger one was expressed.

(4) Friction electrification voltage Measured according to JIS L1094B method (friction electrification voltage measurement method). 8 cm × in a laboratory at 20 ° C. × 40% Rh
5cm test piece 5 for each warp and weft direction
Samples are taken one by one, and a specified cotton friction cloth according to JIS L1080 is applied with a load of 500 gf to rub the attached test piece.
The frictional electrification voltage was measured 60 seconds after the drum was rotated. The higher the number, the higher the frictional electrification voltage and the poorer the antistatic property. In Table 1 in the examples, the larger of the average values of the five vertical and horizontal sheets is shown.

(5) Elongation (%) The elongation at break is determined based on the JIS L1013 method.

(6) Shrinkage recovery rate (CR (%)) It is measured based on JIS L1019T. That is,
After applying a initial load to make a small hose with a length of about 40 cm and 10 turns, immerse it in hot water at 90 ° C for 20 minutes, remove the sample, and drain it with a blotter or cloth. It is measured after being naturally dried in a horizontal state.

(7) Crimping development elongation rate (TR (%)) A casks wound with crimped yarn 5 times were prepared, and apparent fineness × 0.
Apply an initial load of 022 dtex · g, and at 150 ± 2 ℃,
Dry heat treatment for 5 minutes, then apparent fineness × 0.11 dtex
・ Apply a constant load of g and obtain the length ratio. TR (%) = 100 × (A−B) / BA A: Length when constant load is applied B: Length of mast when heat treatment is applied by initial load.

(8) Entanglement number (pieces) The entanglement number is according to JIS-L1013, and an intanglement tester (model: R2040) manufactured by Roschild Corporation.
It is the value measured using.

(10) Comprehensive evaluation Two levels were displayed as follows. ◯: The gap between adjacent threads is 30 μm or less in both length and width, and the number of pollen adhered is 200 or less, and the pollen adherence prevention property is excellent. X: Poor pollen adhesion preventive properties other than above.

[Example 1] Nylon raw yarn of 56 decitex, 40 filaments was used for both warp yarn and weft yarn, and after weaving a plain weave, relaxation, scouring and dyeing were carried out by an ordinary dyeing method, and then an anion type After dipping in a treatment liquid consisting of 1 wt% of the surfactant Elenite AB-100 (manufactured by Takamatsu Yushi Co., Ltd.), squeeze with a mangle so that the pickup rate is 40%, and heat-dry set at 170 ° C for 30 seconds for antistatic treatment. This was carried out to produce a woven fabric having a vertical density of 175 fibers / 2.54 cm and a horizontal density of 107 fibers / 2.54 cm. The gap between the warp yarn and the warp yarn is 0 μm, and the gap between the weft yarn and the weft yarn is 0
μm, standard deviation of surface roughness (SMD) is 3.2 μm, frictional electrification voltage is 2.5 kV, and the pollen adhesion preventive property of this fabric is 90 pseudo pollen adherents. Was excellent. The results are shown in Table 1.

[Example 2] A PET processed yarn of 84 decitex and 72 filaments was used as a warp yarn. The weft yarn is a core-sheath type composite polyester filament in which an antistatic agent is contained in the core portion, and an unstretched yarn of 156 decitex 18 filaments is heated before twisting, and then, between the heating body and the temporary twisting tool. A twist preventing device was provided at a position different from the point where the heating element and the yarn were separated from each other, and 78 decitex, 18 filament low crimped yarn was used, which was drawn and false twisted using the twist preventing device as a twisting start point. After weaving a plain weave with these warp threads and weft threads, relaxation, scouring, dyeing, drying, and finishing set are carried out by the usual dyeing method, and the vertical density is 188 threads / 2.54
cm, and a weave density of 98 pieces / 2.54 cm were produced. The gap between the warp yarn and the warp yarn is 0 μm, the gap between the weft yarn and the weft yarn is 0 μm, and the standard deviation (SMD) of the surface roughness is 2.1.
μm, the frictional electrification voltage was 0.4 kV. Elongation is 35
%, Stretch recovery rate (CR) 38%, crimp onset extension rate (T
R) was 2.6% and the number of confounding was 5. As for the pollen adhesion preventive property of this woven fabric, the pseudo pollen adhered number was 65, and as a comprehensive evaluation, the pollen adherence preventive property was excellent. The results are shown in Table 1.

Comparative Example 1 Using 100% polyester 5
A plain woven fabric using 0-count spun yarn is dyed by the usual dyeing method.
Relax, scouring, dyeing, drying, finishing set,
Vertical density 127 / 2.54 cm, horizontal density 90 /
A 2.54 cm fabric was made. The gap between the warp yarns and the warp yarns is 20μm, the gap between the weft yarns and the weft yarns is 17μm, the standard deviation (SMD) of surface roughness is 2.9μm, and the friction electrification voltage is 5.5kV. The number of simulated pollen adhered was 265, and the pollen adhesion preventive property was inferior as a comprehensive evaluation. The results are shown in Table 1.

[Comparative Example 2] PET warp yarn of 167 decitex and 48 filament was used as warp yarn and PET of 167 decitex and 48 filament was used for weft yarn.
After weaving a plain weave using the processed yarn, relaxing, scouring, and dyeing by a usual dyeing method, then dipping it in a 1 wt% treatment liquid of a cationic surfactant Elenite K-102 (manufactured by Takamatsu Yushi Co., Ltd.). After that, squeeze with a mangle so that the pick-up rate is 40%, and perform antistatic processing by finishing set at 180 ° C for 30 seconds, vertical density 95 pieces / 2.54 cm,
A woven fabric having a horizontal density of 59 pieces / 2.54 cm was produced. The gap between the warp yarn and the warp yarn is 110 μm, the gap between the weft yarn and the weft yarn is 240 μm, and the standard deviation (SMD) of the surface roughness is 7.3.
μm, the frictional electrification voltage was 1.9 kV, and the pollen adhesion preventive property of this woven fabric was 258 pseudo particle adherents, and the pollen adherence preventive property was inferior as a comprehensive evaluation. The results are shown in Table 1.

[0039]

[Table 1]

[0040]

According to the present invention, pollen hardly adheres,
Moreover, it is possible to provide a woven fabric in which pollen is unlikely to enter between the fibers of the woven fabric or into clothes, and it is possible to obtain clothing having an effect of preventing pollen from adhering indoors.

[Brief description of drawings]

FIG. 1 is a process drawing showing an example of a method for producing a low-crimped yarn preferably used in the present invention.

[Explanation of symbols]

1: Undrawn yarn 2: Feed roll 3: Heating roll 4: Separate roll 5: The point where the heating roll and the yarn separate 6: Twist stop device 7: False twisting tool 8: Take-up roller 9: Stretch roll 10: Winding device

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A41D 31/00 502 A41D 31/00 502B 503 503E D03D 1/00 D03D 1/00 Z 15/04 102 15 / 04 102B F term (reference) 3B030 AB03 4L048 AA21 AA24 AA28 AA34 AA46 AA51 AA55 AB08 AC12 AC13 CA05 CA11 CA15 DA02 DA03 DA13

Claims (7)

[Claims] 1. The total fineness of both warp and weft is 44 to
It is made of filament yarn having 220 decitex and a single yarn fineness of 0.7 to 8 decitex. The gap between adjacent vertical yarns and the gap between adjacent weft yarns are both 30 μm or less, and the surface roughness of the woven fabric surface by the KES method. A fabric with a standard deviation of 4.0 μm or less in both vertical and horizontal directions, and a frictional electrification voltage of 4 kV or less in both vertical and horizontal directions. 2. The pollen adhesion preventing woven fabric according to claim 1, wherein at least one of the warp yarn and the weft yarn contains an antistatic synthetic fiber filament yarn. 3. The pollen adhesion preventing woven fabric according to claim 2, wherein the antistatic synthetic fiber filament yarn is a core-sheath type composite fiber and contains an antistatic agent in the core portion. 4. At least one of the warp yarn and the weft yarn,
The pollen adhesion-preventing woven fabric according to any one of claims 1 to 3, which is a crimped yarn of synthetic fiber filament yarn satisfying the following characteristics (1) to (4). (1) Elongation is 20% or more and 50% or less, (2) Stretch recovery rate (CR) is 10% or more and 40% or less, (3) Crimp expression elongation rate (TR) is 0.5% or more and 25% or less. , (4) The number of confounding is 4 or more and 50 or less 5. The pollen adhesion-preventing woven fabric according to claim 4, wherein the crimp development elongation rate (TR) of the crimped synthetic fiber filament yarn is 0.5% or more and 8% or less. 6. A pollen adhesion-preventing textile product obtained by sewing the pollen adhesion-preventing textile according to any one of claims 1 to 5. 7. A coat, a blouson, a windbreaker,
Blouse, shirt, skirt, slacks, scarf,
The pollen adhesion-preventing textile product according to claim 6, which is one of an apron, a hat, gloves, an arm cover, and a duvet cover.