JP2022061122A - Woven knit - Google Patents

Abstract

To provide a polyester woven knit with excellent anti-virus property that has excellent wear durability and washing durability.SOLUTION: Provided is a polyester woven knit in which a conductive combination-twisted yarn A composed of a conductive yarn a and a non-conductive processed yarn b having a crimp ratio of 10 to 50% is arranged at least in a part of a woven knit, and quarternary ammonium halide is adhered.SELECTED DRAWING: None

Description

The present invention relates to a polyester woven or knitted fabric having excellent antiviral properties with excellent wear durability and washing durability.

With the growing interest in environmental hygiene, in recent years, even materials for clothing have been required to have functions such as dustproof, pollen, and antiviral measures. However, in the conventionally proposed woven and knitted fabrics for clothes, for example, a woven and knitted fabric that prevents dust adhesion and pollen by using a conductive yarn is proposed (Patent Document 1), however. , The antiviral effect was not considered at all.
On the other hand, regarding antiviral activity, the epidemic of SARS (Acute Respiratory Syndrome), new influenza, new coronavirus, etc. threatens human life, so development of highly antiviral woven and knitted fabrics is underway. .. While various agents such as metal ion and cationic surfactant have been proposed as antiviral agents, a product made of a quaternary ammonium halide has been proposed as an antiviral product having excellent washing durability (). Patent Document 2). However, although the method can reduce the virus attached to the woven or knitted fabric after a certain period of time, it does not consider reducing the contact chance of the virus at all. Further, the quaternary ammonium halide has problems that the disperse dye is easily drawn out and the fastness is easily lowered, and the performance is easily deteriorated due to wear.
In outer clothing represented by uniform clothing, casual clothing, and formal clothing, polyester materials are often used in consideration of ease of washing and wrinkle resistance, but polyester materials are charged. It is a material that has the characteristic of being large and is prone to adhere to pollen and airborne viruses due to static electricity. In the polyester material, a woven or knitted fabric which makes it difficult for airborne viruses due to static electricity to adhere, can reduce the virus even if it adheres, and has excellent wear durability and washing durability has not been obtained.

Japanese Unexamined Patent Publication No. 2009-185439 International Publication No. 2016/09928

An object of the present invention is to provide a woven or knitted fabric having excellent antiviral properties, which is excellent in abrasion durability and washing durability.

In order to solve the problem, the present invention has the following configuration.
(1) In a woven or knitted fabric using polyester fibers, a conductive twisted yarn A composed of a conductive yarn a and a non-conductive processed yarn b having a crimp ratio of 10 to 50% is arranged at least in a part of the woven or knitted fabric. A woven or knitted fabric characterized by a cage and a quaternary ammonium halide attached.
(2) The woven or knitted fabric according to (1) above, wherein the triboelectric charge amount after 50 times of washing is 10 μC / m ² or less.
(3) The woven or knitted fabric according to (1) or (2) above, wherein the antiviral activity value after 50 washings and after the frosting test is 3.0 or more.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a woven or knitted fabric having excellent antiviral properties, which is excellent in abrasion durability and washing durability.

The woven and knitted fabric of the present invention is a woven and knitted fabric using polyester fibers, and is a woven and knitted fabric in which the conductive twisted yarn A is used for the ground structure. It is important that the sex processed yarn b is a knitted processed yarn. With the above configuration, it has excellent conductivity performance and can efficiently suppress the adhesion of airborne viruses due to the generation of static electricity. Furthermore, by suppressing static electricity due to rubbing, it is possible to suppress performance deterioration of the quaternary ammonium halide described later and color transfer from the dyed fabric to the white fabric.

Here, the conductive yarn a is a composite yarn of (i) a metal-coated yarn, (ii) a polyester-based base polymer serving as a fiber substrate, and a polymer in which conductive fine particles such as carbon, a metal, and a metal compound are dispersed. It is a conductive thread made of metal. In the present invention, a conductive yarn containing carbon as a conductive component is preferably used in an acid or alkaline environment and in terms of washing durability. Examples of the composite method of the conductive component include a method in which the yarn has a core-sheath structure and the conductive component is arranged in the sheath portion to be a fully exposed conductive component type or a partially exposed conductive component surface type. Further, although the cross-sectional shape and the exposed parts of the conductive component are arbitrary and there is no problem, the core sheath structure is preferable from the viewpoint of making it difficult to visually recognize the conductive component and improving the wear durability.

As the base polymer of the conductive yarn a, polyethylene terephthalate is preferable among polyesters from the viewpoint of spinning stability and long-term continuous use. Examples of the glycol component of polyester include, but are not limited to, ethylene glycol, diethylene glycol, butanediol, neopentyl glycol, cyclohexanedimethanol, polyethylene glycol, and polypropylene glycol. Further, the polyester may contain a copolymerization component capable of forming another ester bond within a range that does not impair the effect of the present invention.

When carbon is used as the conductive component in the conductive thread a, the preferable carbon content is 15 to 40% by weight based on the total weight of the components of the conductive thread a. Here, when the content of the conductive carbon is less than 15% by weight, sufficient conductive performance may not be exhibited. On the other hand, if it exceeds 40% by weight, the polymer fluidity may be significantly lowered and the silk-reeling property may be extremely deteriorated. Carbon generally has poor conductivity when the particles are completely dispersed, but when a chain structure called a structure is adopted, the conductivity is improved and carbon becomes what is called conductive carbon. Therefore, when making a polymer conductive by conductive carbon, it is important to disperse carbon black without destroying this structure. The electrical conduction mechanism in the composite of conductive carbon and polymer can be considered to be due to the contact of carbon chains or the tunnel effect, but the former is considered to be the main one. Therefore, when the carbon chain is long and exists in the high-density polymer, the contact probability is high and the conductivity is high. Here, it is preferable that the specific resistance of the conductive yarn a in the present invention is 10 ^-1 to ¹⁰⁸ Ω · cm in terms of both conductivity and cost.

The total fineness of the conductive yarn a is preferably 11 to 84 dtex from the viewpoint of imparting conductive performance to the woven fabric. If it is less than 11 dtex, the conductive performance may be insufficient. Further, when it exceeds 84 dtex, the conductive thread a becomes easily visible. A more preferable total fineness of the conductive yarn a is 11 to 33 dtex.

The number of single yarns of the conductive yarn a is preferably 1 to 4. When there are five or more, the conductive threads are exposed on the surface and are easily visible. A more preferable number of single yarns of the conductive yarn a is one.

Further, as a characteristic of the non-conductive processed yarn b used in the present invention, it is important that the crimp ratio (%) is 10 to 50. Since the non-conductive processed yarn b is provided with crimping, it is difficult to visually recognize the conductive yarn a, and stress is not concentrated on the conductive yarn a even due to wear assuming wearing, and the conductive polymer is formed by scratching the yarn. It does not deteriorate, has excellent conductivity after wearing, and can maintain the suppression of airborne virus adhesion due to static electricity. Here, when the crimp ratio of the non-conductive processed yarn b is less than 10%, the crimp as the conductive twisted yarn A is too low, and the conductive yarn a easily appears on the surface and is inferior in aesthetics and wears. The conductive performance at the time also deteriorates. Further, when the crimp ratio of the non-conductive processed yarn b exceeds 50%, the crimp difference from the conductive yarn a becomes large, so that the presence of the conductive yarn is easily visible and the aesthetics are inferior. A more preferable crimp ratio is 20 to 45%.

Examples of the non-conductive processed yarn b include aromatic polyester fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and aliphatic polyester fibers such as polylactic acid and polyglycolic acid, but are limited thereto. Not done. Among them, polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate fiber are preferable because they have excellent mechanical properties and durability and are robust in crimping. Further, polyethylene terephthalate is preferable because it has good adsorptivity for quaternary ammonium halides and can obtain washing durability peculiar to polyester fibers.

As the polyethylene terephthalate, polyester having terephthalic acid as a main acid component and ethylene glycol as a main glycol component, in which 90 mol% or more is a repeating unit of ethylene terephthalate, can be used. Further, a copolymerization component capable of forming another ester bond may be contained as long as the effect of the present invention is not impaired. The non-conductive processed yarn b has an arbitrary shape such as a polygonal type such as a round shape, a triangular cross section, a flat shape, a hexagonal shape, an L type, a T type, a W type, an eight-leaf type, and a dogbone type, a variety type, and a hollow type. You can choose the one that has.

Further, the crimping applied to the non-conductive processed yarn b may be applied by any method such as a false twist method, a pushing method, a knit denitting method, or a bimetal structure, but the crimping when worn is preferable. It is crimped by the false twist method with high toughness. When crimping is imparted by adopting a bimetal structure, it is preferable that the non-conductive processed yarn b has a bimetal structure of polyethylene terephthalate and polytrimethylene terephthalate, or polyethylene terephthalate and polybutylene terephthalate.

The total fineness of the non-conductive processed yarn b is preferably 56 to 400 dtex from the viewpoint of imparting firmness to the woven fabric. Here, if it is less than 56 dtex, the conductive thread a is likely to be loaded due to wear due to wearing, and the conductive performance may be deteriorated. On the other hand, if it exceeds 400 dtex, the texture may become too hard and the wearing comfort may be lowered.

It is preferable that the single yarn fineness of the non-conductive processed yarn b is 0.5 to 10 dtex, respectively, from the viewpoint of imparting firmness to the woven fabric and improving the abrasion durability. Here, if it is less than 0.5 dtex, the conductive thread a becomes conspicuous, and fluff is easily generated due to repeated washing and abrasion, and the conductivity is easily impaired. Further, even if it exceeds 10 dtex, the conductive thread a becomes conspicuous, and the fiber may be thick and the texture may be too hard. More preferably, it is 1 dtex or more and 6 dtex or less.

In the conductive plyed yarn A, it is important that the above-mentioned conductive yarn a and the non-conductive processed yarn b are twisted together. The combined twisted form is a form in which the conductive yarn a and the non-conductive processed yarn b are twisted together, and the yarns may be first mixed by entanglement or the like and then twisted. By twisting the conductive yarn a and the non-conductive processed yarn b, the conductive yarn a can be uniformly arranged on the yarn surface of the conductive twisted yarn A, and the form of the conductive yarn a can be visually recognized by the woven fabric. It can be difficult.

The number of twists of the conductive twisted yarn A is preferably 100 to 1500 (T / M). Here, if the number of combined twists is less than 100 T / M, the conductive yarn a and the non-conductive processed yarn b are likely to come apart, causing streaky defects in the woven fabric or breaking the conductive yarn a when worn. It becomes easy to be done. Further, when the number of twisted yarns exceeds 1500 T / M, the conductive twisted yarns A are in a converged form, and the conductive yarns a are rather easily visible.

The mass mixing ratio of the conductive yarn a and the non-conductive yarn b in the conductive plyed yarn A is preferably 5:95 to 50:50 from the viewpoint of achieving both conductive performance and cost.

The conductive plyed yarn A as described above is inserted into the ground structure of the non-conductive processed yarn B so that the conductive plyed yarns A adjacent to each other are arranged at intervals, and is knitted into a knitted fabric. Will be done. For the purpose of developing conductivity and suppressing the adhesion of airborne viruses due to static electricity, it is conceivable to construct a woven or knitted fabric from only conductive threads, but it is possible to develop conductivity at low cost, and to have W & W properties and texture. In order to obtain wearing comfort such as, it is preferable that the conductive twisted yarns A are arranged at intervals.

As for the interval (pitch of the interval arrangement) for inserting and arranging the conductive twisted yarn A, the smaller the interval, the better the conductive property, but in consideration of the conductive property and texture, aesthetics / quality, cost, etc., 3 It is preferable to insert and arrange the cells at intervals of about 30 mm. More preferably, the conductive twisted yarns A are inserted and arranged at intervals of about 5 to 20 mm. When the arrangement interval of the conductive twisted yarns A is less than 3 mm, the arrangement number of the conductive twisted yarns A becomes large, the texture, appearance and quality are liable to deteriorate, and the production cost of the conductive twisted yarns A increases. In some cases.

As a specific example of the yarn used for the ground structure of the woven or knitted fabric in the present invention, it is preferable that the polyester fiber is contained in an amount of 50% by mass or more because the quaternary ammonium halide has good adsorptivity. Examples of the polyester include, but are not limited to, aromatic polyester fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and aliphatic polyester fibers such as polylactic acid and polyglycolic acid. Among them, polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate fibers are preferable because they have excellent mechanical properties and durability and are robust in crimping. Further, polyethylene terephthalate fibers are preferable because they can obtain washing durability peculiar to polyester fibers.
In addition to polyester fibers, synthetic fibers such as polyamide, acrylic and polyurethane, and blended products of synthetic fibers and natural fibers such as cotton, rayon, wool and silk may be used without any problem.

Further, as the form of the yarn used for the ground structure, any form such as spun yarn, raw filament yarn, false twisted yarn and the like can be used.

The total fineness of the yarn used for the ground structure is preferably 56 to 500 dtex in terms of giving the woven fabric a firm waist. Here, if it is less than 56 dtex, a load is applied to the conductive yarn when repeatedly worn, and the conductive performance may deteriorate. If it exceeds 500 dtex, the texture is too hard.

Further, it is preferable that the single yarn fineness of the yarn used for the ground structure is 0.2 to 10 dtex, respectively, in terms of imparting firmness to the woven fabric. Further, if the total fineness is the same, the finer the single yarn fineness, the larger the fiber surface area and the higher the antiviral effect of the quaternary ammonium halide, which is preferable. However, if it is less than 0.2 dtex here, fluffing is likely to occur and conductivity is likely to be impaired when repeatedly washed and worn. Further, when it exceeds 10 dtex, the fiber becomes thick and the texture becomes hard, and the aesthetics also deteriorates. More preferably, it is 1 to 5 dtex.
The woven and knitted fabric of the present invention preferably has a triboelectric charge amount of 10 μC / m ² or less after 50 times of washing in that it satisfies the conductive performance and suppresses the adhesion of airborne viruses due to static electricity. The woven and knitted fabric of the present invention is mainly applied to outer garments, and since it is assumed that washing is repeated after actually making clothes, it has predetermined washing durability as well as the initial stage. Is preferable. A more preferable triboelectric charge amount is 7 μC / m ² or less.

Further, it is important that the woven or knitted fabric in the present invention has a quaternary ammonium halide attached. The quaternary ammonium halide has an action of strongly adsorbing and denaturing amino acids of proteins constituting the virus, so that a high antiviral effect can be exhibited.

Examples of the quaternary ammonium halide include tetramethylammonium iodide, trimethyldecylammonium bromide, didecyldimethylammonium bromide, dodecyldimethyl-2-phenoxyethylammonium bromide, lauryltrimethylammonium bromide, cetyltrimethylammonium bromide, and didecyldimethylammonium. Chloride, trimethylammonium chloride, trimethyldodecylammonium chloride, trimethyltetradecylammonium chloride, cetylpyridinium chloride, trimethylhexadecylammonium chloride, trimethyloctadecylammonium chloride, didecylmonomethylhydroxyethylammonium bromide, alkyldimethylhydroxyethylammonium chloride, alkyltrimethylammonium Examples thereof include bromide, dioctyldimethylammonium chloride, dioctyldimethylammonium bromide, octyldecyldimethylammonium chloride, octyldecyldimethylammonium bromide, methylbenzethonium chloride, alkyldimethylbenzylammonium chloride, alkylpyridiniumammonium chloride, dialkylmethylbenzylammonium chloride and the like. Of these, didecyldimethylammonium chloride is particularly preferably used.

The amount of the quaternary ammonium halide attached is preferably 0.01 to 10 parts by weight with respect to 100 parts by weight of the woven or knitted fabric. If it is smaller than 0.01 parts by weight, it may be difficult to obtain sufficient antiviral properties, and if it is larger than 10 parts by weight, there is a concern that the fastness may be lowered.

Further, various additives such as a binder, a sequestrant, a softener, an anti-wrinkle agent, an antistatic agent, a water-absorbing agent, a water-repellent agent, a hard finish agent, and an antifouling agent can be blended as needed. However, anionic additives may inhibit the antiviral properties of quaternary ammonium halides.
Further, the woven and knitted fabric of the present invention preferably has an antiviral activity value of 3.0 or more after 50 washings and after a frosting test. The anti-virus washing durability standard for clothing applications set by the Textile Evaluation Technology Council is 10 times, but especially for medical applications that require high-temperature sterilization washing and uniform applications that require abrasion resistance. , Durability of only 10 washes is not enough. When the antiviral activity value after 50 times of washing and after the frosting test is 3.0 or more, it is possible to have antiviral properties even in clothes that have been repeatedly washed and worn, which is preferable.

Next, the method for producing the woven fabric of the present invention will be described.

The non-conductive processed yarn b used in the present invention is preferably crimped by, for example, false twisting. Arbitrary conditions can be selected for false twisting, and a spindle type, friction desk type, or belt nip type may be used for the twister. Regarding the false twist temperature, in the case of a contact heater, processing can be performed at 150 to 220 ° C., and a higher false twist temperature is preferable because it has high crimping fastness and can maintain conductive performance even after repeated wear.

The number of false twists can be set so that the false twist coefficient (number of false twists (T / M) × fineness (dtex) ^0.5 ) is in the range of 18,000 to 33000. It is preferable that the false twist coefficient is high because the crimping robustness is high and the conductive performance can be maintained even after wearing and wearing.

As for the yarn processing speed, the higher the productivity, the higher the productivity, which is preferable, but considering the stable workability, 100 to 800 (m / min) is preferable.

In order to obtain the conductive plying yarn A used in the present invention, the conductive yarn a and the non-conductive processed yarn b are plyed using an arbitrary twisting machine such as a down twister or a double twister.

The obtained conductive plyed yarns A are inserted into the ground structure so that the conductive plyed yarns A adjacent to each other are spaced apart from each other, and are knitted and knitted into a woven or knitted fabric. Examples of the loom used for weaving include commonly used looms such as ordinary looms, rapiers, water jet looms, and air jet looms, but the looms are not particularly limited thereto. Examples of the knitting machine used for knitting include commonly used knitting machines such as a circular knitting machine, a flat knitting machine, a tricot machine, and a Raschel machine, but the knitting machine is not particularly limited thereto.

Next, the dyeing process of the woven fabric will be described. The dyeing process can be performed according to the dyeing process and conditions of a general polyester mixed woven fabric. Further, in order to suppress washing shrinkage, it is preferable to set the intermediate set temperature to 160 ° C. or higher and 210 ° C. or lower. If the temperature exceeds 210 ° C., the filament may be fused. Dyeing is performed by batch dyeing machines such as liquid flow dyeing machine, air flow dyeing machine, zicker dyeing machine, wins dyeing machine, beam dyeing machine, continuous dyeing by pad method, printing of flat screen, rotary screen, inkjet, etc. And so on, it can be done by using a known method.

Examples of the method for imparting antiviral properties to the woven or knitted fabric of the present invention include bath treatment, dry heat treatment and wet heat treatment. As the treatment in the bath, a method in which the woven or knitted material is put into a treatment liquid containing a quaternary ammonium halide and the treatment liquid is circulated is preferably used.

As the device for the treatment in the bath, a device such as a liquid flow dyeing machine, an air flow dyeing machine, a Zicker dyeing machine, a Wins dyeing machine, and a beam dyeing machine can be used. The treatment temperature in the bath is preferably 80 to 140 ° C, more preferably 110 ° C to 140 ° C. The treatment time is preferably 10 to 120 minutes, more preferably 20 to 60 minutes.

Examples of the dry heat treatment include a method in which a treatment liquid containing a quaternary ammonium halide is applied to a woven or knitted fabric using an apparatus such as a mangle, and then dried and heat-treated. As a device for applying the treatment liquid, a device capable of uniformly applying the liquid to the woven or knitted fabric is preferable, and a normal mangle is preferably used as the liquid applying device. It can also be applied by a foam processing machine, a printing method, an inkjet method, a spray method, a coating method, or the like.

As the drying and heat treatment apparatus, a tenter, a short loop, a shrink surfer, a cylinder dryer and the like that can uniformly apply heat to the woven and knitted fabric can be used.

The drying temperature is preferably 80 ° C to 150 ° C. The treatment time is preferably 15 seconds to 5 minutes, more preferably 30 seconds to 3 minutes at 100 to 140 ° C.

The heat treatment temperature after drying is preferably 80 to 200 ° C. The treatment time is preferably 15 seconds to 8 minutes, more preferably 30 seconds to 5 minutes at 130 to 190 ° C. If the treatment temperature is low, the reaction may not be sufficient and satisfactory washing durability may not be obtained. Further, if the treatment temperature is too high, the quaternary ammonium halide may be decomposed. In addition, when the treatment liquid is applied by dry heat treatment, the quaternary ammonium halide may draw out the dye and the friction fastness may decrease. Therefore, wash with hot water at 30 to 80 ° C. for 30 seconds to 5 minutes. Is preferable.

Examples of the wet heat treatment include a method in which a treatment liquid containing a quaternary ammonium halide is applied to a woven or knitted fabric using an apparatus such as a mangle, and then the wet heat treatment is performed. As the wet heat treatment device, any device that can uniformly apply heat to the woven or knitted material may be used, and a normal pressure steamer, a high pressure steamer, or the like can be used. The wet heat treatment temperature is preferably a wet heat treatment having a temperature of 80 to 140 ° C. The processing time is preferably 15 seconds to 10 minutes.

Further, if the treatment temperature and treatment time for applying the quaternary ammonium halide are insufficient, the fixation of the quaternary ammonium halide to the woven or knitted product becomes insufficient, and the antiviral property may be poor. Further, when the treatment temperature and the treatment time exceed the above ranges, the texture of the woven or knitted fabric may be hardened, the fastness may be lowered, and the like.

Further, the woven and knitted fabric of the present invention is suitable for outer garments represented by uniform garments, casual garments, formal garments, business garments, and student garments.

Next, the present invention will be specifically described with reference to Examples, but the present invention is not limited to these Examples. The various measurement methods in the present invention are as follows.

1. 1. Specific resistance value After bundling the threads to make 2000 decitex, thoroughly refining with a weak anionic detergent to remove oils, etc., and leaving at 20 ° C. and 43% RH (relative humidity) for 24 hours, both ends thereof. After applying a conductive coating material (Dortite) to the film and fixing the end portion, the resistivity value was obtained by measuring the current value at an applied voltage of 500 V using the end portion as an electrode.

2. 2. Fineness A skein for 100 times was prepared using a measuring machine with a frame circumference of 1.0 m, and the fineness was measured according to the following formula.
・ Fineness (dtex) = 100 times of skein weight (g) x 100
3. 3. Curing rate In a measuring machine with a circumference of 0.8 m, the thread is wound 10 times under a tension of 90 mg / dtex to remove the skein, then hung on a rod of 2 cm or less and left for about 24 hours. Wrap this skein in gauze, treat it with hot water at 90 ° C for 20 minutes under no tension, hang it on a stick of 2 cm or less, and leave it for about 12 hours. After leaving, hook one end of the skein, apply the initial load and the measured load to the other end, hang it in water, and leave it for 2 minutes. At this time, the initial load (g) = 1.8 mg / dtex, the measured load (g) = 90 mg / dtex, and the water temperature = 20 ± 2 ° C. Measure the inner length of the left-over skein and let it be L. Further, it is left for 2 minutes with only the initial load excluding the measured load, and the length inside the left skein is measured and used as L1. The crimp ratio was calculated by the following formula, and this operation was repeated 5 times, and the average value was calculated.
Crisp rate (%) = {(L-L1) / L} x 100
4. Triboelectric charge amount (after 50 washes)
The measurement was performed according to the C method (triboelectric charge amount measuring method) described in JIS L1094: 2014. However, as for the fabric to be used, the fabric cut to 40 x 40 cm is washed at 80 ° C and 50 times by the washing method by the specific antibacterial processing certified by JTETC (according to the Ministry of Health, Labor and Welfare Ordinance No. 13). Simplified method).

5. Antiviral activity value (initial)
The test was conducted according to JIS L1922: 2018. The measuring method was performed by Plaque assay. The test virus used was Influenza A virus: A / Hong Kong / 8/68 (H3N2) ATCC VR-1679, and the antiviral activity value was determined. 6. The criteria for passing are 3 or more, which are the antiviral processing standards set by the Textile Evaluation Technology Council. Antiviral activity value (50 times washed + after frosting)
As for the fabric to be used, the fabric cut to 40 x 40 cm is washed 50 times at 80 ° C by the washing method by the specific antibacterial processing certified by JTETC (simplified according to the Ordinance No. 13 of the Ministry of Health, Labor and Welfare). Law). Then, the central portion of the dough was subjected to friction treatment based on the C method described in JIS L 1076: 2012 100 times, and the antiviral activity value was determined for the portion subjected to the friction treatment.

7. Aesthetics In the aesthetics of the woven and knitted fabrics created in the examples, the following grades were judged in the environment under the north window light, and the average value of the evaluations of 10 people was rounded off. 3 or more is at a level that can be judged as passing.
Grade 5: At a distance of 20 cm from the woven fabric, the arrangement of the conductive threads cannot be visually recognized, and the surface feels beautiful.
-Class 4: The arrangement of conductive threads cannot be visually recognized at a distance of 1 m from the woven fabric, and has a beautiful surface feeling.
-Class 3: The arrangement of conductive twisted yarns is almost invisible at a distance of 3 m from the woven fabric.
-Class 2: The arrangement of conductive twisted yarns can be clearly seen at a distance of 3 m from the woven fabric.
-Class 1: The arrangement of conductive twisted yarns can be clearly seen at a distance of 5 m from the woven fabric.

8. Dry friction fastness The test was carried out according to JIS L0849: 2018.

(Example 1)
Polyethylene terephthalate (hereinafter referred to as PET) is used as a base polymer, and 25% by weight of conductive carbon is added to the base polymer to make polymer A, and only PET is used as polymer B. Polymer A: Weight of polymer B The composite was composited so that the ratio was 15:85 and the polymer A was formed in the core and the polymer B was formed in the sheath, and the mixture was spun at a spinning speed of 1200 m / min, and then 3 The polymer was stretched at 0.0 times and heat-treated at 150 ° C. to obtain a conductive yarn a (22 dtex, 1 filament, specific resistance 430 Ω · cm).

Next, PET was used as a polymer and spun at a spinning speed of 3300 m / min to obtain a highly oriented undrawn yarn of 90dtex24 filament. After that, this highly oriented undrawn yarn was subjected to a belt nip false twisting machine MACH33H manufactured by TMT Machinery Co., Ltd. under the conditions of a processing speed of 500 m / min, a draw ratio of 1.6 times, a false twist coefficient of 29000, and a false twist temperature of 200 ° C. in the S direction. False twisting was performed to obtain a non-conductive processed yarn b (56 dtex, 24 filaments, crimp ratio 38%).

Then, the conductive yarn a and the non-conductive processed yarn b were subjected to a combined twisting process of 500 T / M in the S direction to obtain a conductive combined twisted yarn A (78dtex).

Next, PET false twisted yarn (167dtex, 48 filaments) is used for the warp and weft forming the ground structure of the woven fabric, and the conductive twisted yarn A is arranged so that the arrangement spacing of the conductive twisted yarn A is 10 mm. The twill fabric was woven by arranging it on the warp.

The dyeing process was carried out by scouring at 95 ° C. by a conventional method, drying at 130 ° C., and intermediate setting at 180 ° C. Then, it was dyed with a commercially available black dye at 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium chloride 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set at 130 ° C. Next, a heat set was performed at 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at 170 ° C. for 1 minute to obtain a woven fabric having a density of 107 × 67 / 2.54 cm.
Obtained a woven fabric. The obtained woven fabric had excellent conductivity, abrasion durability, and anti-virus property excellent in washing durability, and was suitable for outerwear.

(Example 2)
Using PET as the base polymer, 25% by weight of conductive carbon was added to the base polymer to make polymer A, and PET was used as polymer B, and the weight ratio of polymer A: polymer B was 15:85. The polymer A was formed in the core portion and the polymer B was formed in the sheath portion so as to have a core-sheath cross-sectional shape, and the mixture was spun at a spinning speed of 1200 m / min and then stretched at a spinning speed of 3.0 times at 150 ° C. The polymer was heat-treated to obtain a conductive thread a (44 dtex, 2 filaments, specific resistance 410 Ω · cm).

Next, PET was used as a polymer and spun at a spinning speed of 3300 m / min to obtain a highly oriented undrawn yarn of 267 dtex48 filament. After that, this highly oriented unstretched yarn is temporarily twisted in the S direction by a belt nip false twister MACH33H manufactured by TMT Machinery under the conditions of a processing speed of 500 m / min, a draw ratio of 1.6 times, a false twist coefficient of 31000, and a false twist temperature of 210 ° C. Twisting was performed to obtain a non-conductive processed yarn b (167 dtex, 48 filaments, crimp ratio 46%).

Then, the conductive yarn a and the non-conductive processed yarn b were subjected to a combined twisting process of 300 T / M in the S direction to obtain a conductive combined twisted yarn A (211dtex).

Next, a spun yarn (30s twin yarn) of PET65 cotton 35 is used for the warp and weft forming the ground structure of the woven fabric, and the conductive twisted yarn A is arranged so that the arrangement interval of the conductive twisted yarn A is 10 mm. The twill fabric was woven by arranging it on the warp.

The dyeing process was carried out by degluing and scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium chloride 4 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set at a temperature of 130 ° C. Next, a heat set was performed at a temperature of 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at a temperature of 170 ° C. for 1 minute to obtain a woven fabric having a density of 80 × 50 / 2.54 cm.
The obtained woven fabric had excellent conductivity, abrasion durability, and anti-virus property excellent in washing durability, and was suitable for outerwear.

(Example 3)
Conductive yarn a (22 dtex, 1 filament, specific resistance 430 Ω · cm) was obtained in the same manner as in Example 1.

Next, PET was used as a polymer and spun at a spinning speed of 3300 m / min to obtain a highly oriented undrawn yarn of 176 dtex36 filament. After that, this highly oriented unstretched yarn is temporarily twisted in the S direction by a belt nip false twister MACH33H manufactured by TMT Machinery under the conditions of a processing speed of 500 m / min, a draw ratio of 1.6 times, a false twist coefficient of 27000, and a false twist temperature of 170 ° C. Twisting was performed to obtain a non-conductive processed yarn b (110 dtex, 36 filaments, crimp ratio 20%).

Then, the conductive yarn a and the non-conductive processed yarn b were subjected to a combined twisting process of 500 T / M in the S direction to obtain a conductive combined twisted yarn A (132 dtex).

Next, PET false twisted yarn (167dtex, 48 filaments) is used as the yarn to be formed as the base of the knit, and the conductive twisted yarn A is arranged on the back surface so that the arrangement interval of the conductive twisted yarn A is 10 mm. I knitted a smooth knit.

The dyeing process was carried out by scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium bromide 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set to a temperature of 130 ° C. Next, a heat set was performed at a temperature of 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at a temperature of 170 ° C. for 1 minute to obtain a knitted fabric having 38 wells × 35 courses / 2.54 cm. The obtained knitted fabric had excellent conductivity, abrasion durability, and anti-virus property excellent in washing durability, and was a knitted fabric suitable for outer clothing.

(Comparative Example 1)
A twill woven fabric was woven using PET false twisted yarn (167dtex, 48 filaments) for the warp and weft forming the ground structure of the woven fabric.

The dyeing process was carried out by scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium chloride 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set to a temperature of 130 ° C. Next, a heat set was carried out at a temperature of 180 ° C. for 2 minutes to obtain a woven fabric having a density of 107 × 67 pieces / 2.54 cm. The obtained woven fabric did not have conductivity and had good initial antiviral properties, but the antiviral properties decreased after washing and abrasion durability test, and the antiviral properties were insufficient. In addition, it was a dry friction grade 3 and was unsuitable as outer clothing.
(Comparative Example 2)
Conductive yarn a (22 dtex, 1 filament, specific resistance 430 Ω · cm) was obtained in the same manner as in Example 1.

Next, PET was used as a polymer and spun at a spinning speed of 3300 m / min to obtain a highly oriented undrawn yarn of 90dtex48 filament. Then, this highly oriented undrawn yarn was drawn by a drawing machine under the conditions of a processing speed of 800 m / min, a drawing ratio of 1.6 times, and a hot plate temperature of 210 ° C., and the non-conductive raw silk b (167dtex, 48 filaments, A crimp rate of 0%) was obtained.

Then, the conductive yarn a and the non-conductive raw silk b were subjected to a combined twisting process of 500 T / M in the S direction to obtain a conductive combined twisted yarn A (78dtex).

Next, PET false twisted yarn (167dtex, 48 filaments) is used for the warp and weft forming the ground structure of the woven fabric, and the conductive twisted yarn A is arranged so that the arrangement spacing of the conductive twisted yarn A is 10 mm. The twill fabric was woven by arranging it on the warp.

The dyeing process was carried out by scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium chloride 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set at a temperature of 130 ° C. Next, a heat set was performed at a temperature of 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at a temperature of 170 ° C. for 1 minute to obtain a woven fabric having a density of 107 × 67 / 2.54 cm. The obtained woven fabric lacked conductivity after washing, and although the initial antiviral property was good, the antiviral property was lowered after washing and abrasion durability test, and the antiviral property was insufficient. In addition, the uniform sewn products produced using this woven fabric had a visible arrangement of conductive threads, and lacked aesthetics as outer clothing.

(Comparative Example 3)
Conductive yarn a (22 dtex, 1 filament, specific resistance 430 Ω · cm) was obtained in the same manner as in Example 1.
On the other hand, PET was used as a polymer and spun at a spinning speed of 3300 m / min to obtain a highly oriented undrawn yarn of 90dtex48 filament. After that, this highly oriented unstretched yarn was temporarily twisted in the S direction by a pin false twister TH312 manufactured by Aiki Seisakusho under the conditions of a processing speed of 100 m / min, a draw ratio of 1.6 times, a false twist coefficient of 34000, and a false twist temperature of 215 ° C. Twisting was performed to obtain a non-conductive processed yarn B (56 dtex, 24 filaments, crimp ratio 55%).

Then, the conductive yarn a and the non-conductive processed yarn b were subjected to a combined twisting process of 500 T / M in the S direction to obtain a conductive combined twisted yarn A (78dtex).

Next, PET false twisted yarns (167dtex, 48 filaments) are used for the warp and weft forming the ground structure of the woven fabric, and the conductive twisted yarns A are arranged so that the arrangement spacing of the conductive twisted yarns A is 10 mm. The twill fabric was woven by arranging it on the warp.

The dyeing process was carried out by scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium chloride 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set at a temperature of 130 ° C. Next, a heat set was performed at a temperature of 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at a temperature of 170 ° C. for 1 minute to obtain a woven fabric having a density of 107 × 67 / 2.54 cm. Although the obtained woven fabric has excellent conductivity, abrasion durability, and anti-virus properties with excellent washing durability, uniform sewn products made using this woven fabric have large irregularities in the fabric and conductive threads. The arrangement of the above was clearly visible, and the dry friction was grade 3, which was unsuitable for outer clothing.

(Comparative Example 4)
Conductive twisted yarn A (78dtex) was obtained in the same manner as in Example 1.

Next, PET false twisted yarns (167dtex, 48 filaments) are used for the warp and weft forming the ground structure of the woven fabric, and the conductive twisted yarns A are arranged so that the arrangement spacing of the conductive twisted yarns A is 10 mm. The twill fabric was woven by arranging it on the warp.

The dyeing process was carried out by scouring at a temperature of 95 ° C. by a conventional method, drying at a temperature of 130 ° C., and intermediate setting at a temperature of 180 ° C. Then, it was dyed with a commercially available black dye at a temperature of 130 ° C. for 45 minutes, reduced and washed at 80 ° C., washed with water, dried, and heat-set at a temperature of 170 ° C.

Then, it was immersed in an aqueous solution of didecyldimethylammonium adipate 5 g / L, squeezed with a pickup of 60%, and then dried in a pin tenter set at a temperature of 130 ° C. Next, a heat set was performed at a temperature of 180 ° C. for 2 minutes. Further, this polyester woven fabric was washed with water at 60 ° C. for 1 minute and dried in a pin tenter set at a temperature of 170 ° C. for 1 minute to obtain a woven fabric having a density of 107 × 67 / 2.54 cm. The obtained woven fabric had excellent conductivity and good initial antiviral property, but the antiviral property was significantly reduced after washing and abrasion durability test, and the antiviral property was insufficient.

The results of Examples 1 to 3 and Comparative Examples 1 to 4 are shown in Table 1.

According to the present invention, it is possible to provide a polyester woven or knitted fabric having excellent antiviral properties, which is excellent in abrasion durability and washing durability. As a result, such woven and knitted fabrics are suitable for outer garments represented by uniform garments, casual garments, formal garments, business garments, and student garments.

Claims (3)

In a woven or knitted fabric using polyester fibers, a conductive twisted yarn A composed of a conductive yarn a and a non-conductive processed yarn b having a crimp ratio of 10 to 50% is arranged at least in a part of the woven or knitted fabric. A woven or knitted fabric to which a quaternary ammonium halide is attached. The woven or knitted fabric according to claim 1, wherein the triboelectric charge amount after 50 times of washing is 10 μC / m ² or less. The woven or knitted fabric according to claim 1 or 2, wherein the antiviral activity value after 50 times of washing and after the frosting test is 3.0 or more.