JP2000290875A - Antibacterial polyester filament woven / knitted fabric - Google Patents

Abstract

(57) [Summary] [PROBLEMS] While providing morphological stability, strength retention and the like,
Provided is a polyester filament woven / knitted fabric having excellent antibacterial properties. A woven or knitted fabric has a fiber surface area of 0.1 g / g.
A polyester filament having a molecular weight of 200 to 70 m ² or more.
0, inorganic / organic value = 0.3-1.4 and average particle size 2
An antibacterial polyester filament woven or knitted fabric comprising a pyridine antibacterial agent having a size of not more than μm and having a bacteriostatic activity value of not less than 2.2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a woven or knitted polyester filament having antibacterial properties, and more particularly, to an antibacterial polyester having excellent antibacterial properties that can withstand washing under strong washing conditions performed in hospitals and the like. The present invention relates to a filament woven or knitted fabric.

[0002]

2. Description of the Related Art Generally, fabrics for clothing and textile products for living materials such as sheets and covers have excellent mechanical strength, washing resistance, form stability, heat resistance and chemical resistance. Therefore, polyester fibers are mainly used. However, polyester fibers have low moisture absorption, so if they are worn for a long time, they tend to cause stuffiness or stickiness due to sweating, and if they are worn continuously for several days, they will adhere to the fibers and absorb There was a problem that sweat odor was generated due to propagation of surviving bacteria and wearing comfort was reduced.

As a countermeasure against this odor, various methods for imparting antibacterial properties have been studied. On the other hand, in recent years, hospital-acquired infections caused by methicillin-resistant Staphylococcus aureus have become a problem. As one of the measures for cleaning the route of infection, there is a demand for imparting antibacterial properties to textiles that are in direct contact with patients.

[0004] As a method of imparting antibacterial properties to fibers,
A method has been adopted in which an inorganic antibacterial agent such as silver, copper or zinc is kneaded in the step of spinning the polyester, and a method in which an organic antibacterial agent such as a quaternary ammonium salt is applied by spraying or padding. The former case is excellent in terms of washing durability, but cannot be processed into products such as cloth. In addition, since the antibacterial agent precipitates as crystals on the spinneret at the spinning stage, there is a problem of productivity such as thread breakage and fusion,
In addition, since the antibacterial agent is uniformly dispersed in the fiber, it is necessary to knead the antibacterial agent in a large amount in order to ensure the performance, and there is a problem that the cost increases. On the other hand, in the latter case, although there is an advantage that antibacterial processing can be performed on products such as cloth, antibacterial washing durability is inferior, and no satisfactory performance is obtained in any of the methods.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a conventional polyester filament woven or knitted fabric having the form stability,
Polyester filament woven / knitted fabric having excellent antibacterial properties while having strength retention and the like, and office wear, work clothes, food lab coats, nursing lab coats, school uniforms, sportswear, kitchen garments, linings, and patients using the same. It is to provide clothing, nursing clothing, pajamas, sleepwear, aprons, shirts, underwear, supporters, corsets, curtains, sheets and covers.

[0006]

According to one aspect of the present invention, there is provided an antibacterial polyester filament woven or knitted fabric which uses a polyester filament having a fiber surface area of 0.12 m ² or more per gram of the woven or knitted fabric. The polyester filament contains a pyridine antibacterial agent having a molecular weight of 200 to 700, an inorganic / organic value of 0.3 to 1.4 and an average particle size of 2 μm or less, and has a bacteriostatic activity value of 2.2 or more. An antibacterial polyester filament woven or knitted fabric characterized in that:

Another embodiment of the woven or knitted antibacterial polyester filament of the present invention comprises a polyester filament having a single fiber fineness of 5 denier or less, wherein the polyester filament has a molecular weight of 200 to 700 and an inorganic / organic value = 0. An antibacterial polyester filament woven or knitted fabric comprising a pyridine antibacterial agent having an average particle size of 3 to 1.4 and a mean particle size of 2 μm or less, and having a bacteriostatic activity value of 2.2 or more.

Still another aspect of the present invention is an office wear, work clothes, food lab coat, nursing lab coat, school uniform, sportswear, kitchen garment, lining, patient garment, nursing care using the antibacterial polyester filament woven or knitted fabric. Clothing, pajamas, sleepwear, aprons, shirts, underwear, supporters, corsets, curtains, sheets, and covers.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Polyester filaments used in the woven or knitted fabric of the present invention are not particularly limited, but those having a main repeating component of polyethylene terephthalate, polybutylene terephthalate or ethylene terephthalate unit (specifically, 90 units of repeating unit) (Mol% or more), and a fiber containing a butylene terephthalate unit as a main repeating component (specifically, 90 mol% or more of the repeating unit) can be used. Above all, preferred are fibers composed of a polyester having an ethylene terephthalate unit of 90 mol% or more as a repeating component,
It is more preferable that the fiber is a polyester made of a polyester having an ethylene terephthalate unit of 95 mol% or more as a repeating component. 100 mol% ethylene terephthalate unit
It is more preferable that the fibers are made of a polyester (ie, polyethylene terephthalate) as a repeating component. The cross-sectional form of these polyester fibers may be round or irregular.

The woven or knitted fabric of the present invention can be used in combination with natural fibers such as cotton, wool and silk, semi-synthetic fibers such as rayon, and other synthetic fibers in addition to such polyester filaments. can do.

The polyester filament used in the woven or knitted fabric of the present invention contains a pyridine-based antibacterial agent having a molecular weight of 200 to 700, an inorganic / organic value of 0.3 to 1.4 and an average particle size of 2 μm or less. It is a thing.

[0012] Such a pyridine-based antibacterial agent firmly adheres or exhausts and diffuses to the polyester filament.
This is because the three requirements of a specific molecular weight, inorganic / organic value and average particle size are brought close to the conditions close to those of a disperse dye that exhausts and diffuses inside the fiber, thereby exhibiting the same behavior as a disperse dye. Conceivable. When these conditions are not satisfied, the antibacterial agent does not firmly adhere to the polyester filament or does not absorb or diffuse, and sufficient industrial washing durability cannot be obtained.

When the molecular weight is less than 200, the antibacterial agent adheres to, or is absorbed and diffused into, the polyester filament, but the washing durability is low. On the other hand, when the molecular weight exceeds 700, the antibacterial agent does not adhere or exhaust to the polyester filament. Preferably, the molecular weight of the antimicrobial agent is between 300 and 50
0.

Next, the "inorganic / organic value" as referred to in the present invention.
Is a value that organically treats the polarity of various organic compounds devised by Minoru Fujita [Referred to Chemical Experiments-Organic Chemistry-Kawade Shobo (1971)]. The value is obtained by determining the values of the inorganic and organic properties of various polar groups as shown in Table 1, obtaining the sum of the inorganic values and the sum of the organic values, and taking the ratio between the two.

[0015]

[Table 1]

In the organic concept, for example, the inorganic / organic value of polyethylene terephthalate is calculated to be 0.7. The present invention focuses on the affinity between a synthetic fiber and an antibacterial agent based on the value calculated based on the organic concept,
An antibacterial agent having an organic value within a predetermined range is attached or exhausted and diffused to a polyester filament.

When the inorganic / organic value is less than 0.3, the organic property becomes too strong. On the other hand, when it exceeds 1.4, the inorganic property becomes too strong. Difficult to spread. The inorganic / organic value is preferably from 0.35 to 1.3, preferably from 0.4 to 1.
More preferably, it is 2.

For example, 2,3,5,6-tetrachloro-
In the case of 4-hydroxypyridine, one benzene nucleus,-
One 4 Cl group, one -OH group, inorganic value for containing one -NR ₂ group becomes 265. Further, the organic value is 180 since it contains five C (carbon) and four -Cl groups, and the inorganic value / organic value becomes 1.47. Since 2-pyridylthiol-1-oxide zinc is present as a chelate complex and zinc and sulfur are considered to have a covalent bond in terms of electronegativity, the inorganic value of this compound is 85, and the organic value is 85. Is 190, and the inorganic value / organic value can be calculated as 0.45. On the other hand, in sodium 2-pyridylthiol-1-oxide which is the same pyridine antibacterial agent, sodium and sulfur have an electronegativity difference of 1.6 or more, and this bond becomes an ionic bond. In this case, sodium is converted into a light metal salt. Since it works, the inorganic value can be calculated to be 585 and the organic value can be calculated to be 190, and the inorganic value / organic value is 3.0, so that the affinity with the polyester is deteriorated.

In the present invention, among these antibacterial agents, those having an average particle size of 2 μm or less are used. If the average particle size exceeds 2 μm, it is difficult for the polyester filament to adhere to or be exhausted from the polyester filaments, and when formed into a working liquid, the particles tend to settle, resulting in a lack of stability of the liquid. Preferably, the average particle size of the antimicrobial agent is 1 μm or less.

As such antibacterial agents, 2-chloro-6-trichloromethylpyridine, 2-chloro-4-trichloromethyl-6-methoxypyridine, 2-chloro-4-trichloromethyl-6- (2-furylmethoxy) pyridine ,
Di (4-chlorophenyl) pyridylmethanol, 2,
Pyridine compounds such as 3,5-trichloro-4- (n-propylsulfonyl) pyridine, zinc 2-pyridylthiol-1-oxide, and di (2-pyridylthiol-1-oxide) can be used. Among them, in particular, 2-pyridylthiol-1-oxide zinc has a good affinity with the fiber, and is firmly attached to and exhausted from the fiber, so that it has good washing durability, and the target bacterial species showing an effect including MRSA. Is preferred in terms of the size of

In the present invention, the polyester filament is preferably colored. This is because a woven or knitted fabric having excellent washing durability can be obtained by exhausting and diffusing the antibacterial agent into the polyester filament simultaneously with the dyeing. Here, "colored" means that the polyester filament contains a colored material such as a disperse dye, an acid dye, a cationic dye, and a fluorescent brightener.

The polyester filament used in the present invention has a fiber surface area of 0.12 m ² per 1 g of the woven or knitted fabric.
It has a denier of at least 5 denier or less, preferably has a surface area of at least 0.15 m ² or has a denier of 4 denier or less. Since the action of the antibacterial agent adhering to or exhausting from the fiber depends on the surface area of the fiber or the fineness of the single fiber of the fiber, a fiber having a surface area of 0.12 m ² or more or a fiber having a single fiber fineness of 5 denier or less is highly industrialized. An antibacterial fiber structure having washing durability can be obtained. The same effect can be obtained even when a plurality of types of synthetic fibers or further natural fibers are combined.

In consideration of the antibacterial properties, the state in which the antibacterial agent is attached to the fiber surface is most excellent because the frequency of contact with bacteria is high. However, in this state, the antibacterial agent is easily peeled, which is not preferable from the viewpoint of washing durability. On the other hand, when the antibacterial agent is uniformly diffused into the fiber, the antibacterial property is reduced, but the washing durability is improved. From the above, the state in which the antimicrobial agent is distributed in a ring shape in the vicinity of the fiber surface inside the fiber, or the state in which the antimicrobial agent is branched and diffused from the fiber surface to the inside in a branch shape is excellent in antibacterial properties and washing durability. Conceivable.

The state in which the antibacterial agent is distributed in a ring shape near the fiber surface inside the polyester filament is as follows.
X-ray microanalyzer (EMAX-2 manufactured by Horiba, Ltd.)
000) to analyze the fiber cross-section, paying attention to specific elements contained in the antibacterial agent, for example, sulfur, etc.
By evaluating the distribution of the antimicrobial agent inside the polyester filament, the element is present near the fiber surface inside the fiber, and the distribution becomes a ring shape with a predetermined width when viewed from the fiber cross section. It can be confirmed from that.

The state in which the antimicrobial agent is branched and diffused from the fiber surface into the inside of the polyester filament in a branched manner can be confirmed by observation with a scanning electron microscope (SEM).

In the present invention, by changing the processing conditions of the fiber structure, the antibacterial agent is attached to the fiber surface, distributed in a ring shape from the fiber surface to the inside, or branched into the fiber inside. It can be controlled to be in a branched and diffused state.

The woven or knitted fabric referred to in the present invention includes a woven fabric, a knitted fabric, and a woven and knitted fabric combined with a woven fabric portion and a knitted fabric portion. As the structure of the woven fabric, a conventional structure such as flat, twill, satin, and its changed structure can be used. Knitted fabrics include warp knitted fabrics such as tricot fabrics and Russell fabrics.
Any circular knitted fabric such as a single circular knitted fabric and a double circular knitted fabric may be used without any particular limitation. In addition, the structure of the knitted fabric is a half structure of a warp knitted fabric, a mesh structure, a one-sided unevenness changing structure, a satin structure, or the like, or a circular knitted fabric,
It is not limited at all, such as an interlock structure and a one-sided unevenness changing structure.

The woven or knitted fabric of the present invention has a bacteriostatic activity value of 2.2 or more according to the bacteria control evaluation method (unified test method) defined by SEK (Council for Evaluation of New Functions of Textile Products).
If the bacteriostatic activity value is less than 2.2, the desired bacteriostatic effect cannot be obtained.

The woven or knitted fabric of the present invention preferably has a bacteriostatic activity value of 2.2 or more after 50 washes. Here, the term "one time of industrial washing" refers to a weak alkaline detergent 2 g / l, a hydrogen peroxide solution (35% industrial use) 3 cc / l, a sodium percarbonate 1 .
Washed at 5 g / l, temperature 80 ± 2 ° C., bath ratio 1:20 for 15 minutes, then drained, dehydrated, washed with water, dehydrated and dried with a tumble dryer for 20 minutes.

In the present invention, in the case of a woven fabric, the weaving density of the warp and the weft is preferably 50 to 250 yarns / inch, more preferably 75 to 250 yarns / inch. The weaving density of the warp and weft of the fabric is 50 yarns /
If it is less than inches, seam misalignment and eye misalignment when worn tend to occur. On the other hand, if the woven fabric density of the warp and the weft exceeds 250 yarns / inch, the woven fabric becomes thick and coarse, and the lightness tends to be impaired, which is not preferable.

It is preferable to use polyester filaments having a single fiber fineness of 0.1 to 10 denier for the warp and weft. Of the warp and weft,
If at least any of the single fiber finenesses is greater than 10 denier, the texture of the fabric tends to be hard. Further, when it is less than 0.1 denier, fluff is easily generated due to friction during wearing. In addition, the warp and the weft preferably have a single fiber fineness of 0.1 denier or more from the viewpoint of weaving properties and woven fabric strength. From the viewpoint of producing a soft and tight woven fabric, a mixed fiber of different fineness filament yarns having different single fiber fineness may be used. In this case, the total surface area of the mixed filament yarn is preferably not less than 0.12 m ² , and a woven fabric having antibacterial properties and having tension can be produced.

At this time, it is preferable to use polyester filaments having a total fineness of 50 to 350 denier for the warp and weft. If the total fineness of at least one of the warp and the weft is less than 50 denier, the tension may be increased. It tends to be a thin woven fabric without any. On the other hand, when the total fineness is larger than 350 denier, the fabric becomes thick.

Further, from the viewpoint of maintaining the strength of the cloth for clothing and the cloth for living materials, it is preferable that the tear strength of such a cloth is at least 1000 g in at least one of the warp direction and the weft direction.

According to the present invention, in the case of a knitted fabric, the density is 18 to 82 wells / inch in the well direction and 22 to 82 wells / inch in the course direction.
Preferably it is 130 courses / inch. If the density of the knitted fabric is less than 18 wells / inch and 22 courses / inch, the rupture strength of the fabric is low, and the fabric is not preferable as a fabric for clothing and a fabric for living materials, for example, causing eye distortion. On the other hand, if it exceeds 82 wells / inch and 130 courses / inch, it is not preferable because the cloth is thick, the lightness is impaired, and the knitting property is further lowered.

On the other hand, the yarn constituting the knitted fabric is a front yarn,
It is preferable that the middle yarn or the back yarn has a single fiber fineness of 0.1 to 10 denier. If the single fiber fineness exceeds 10 denier, the texture of the knitted fabric becomes hard, and it becomes difficult to use it as a cloth for clothing and a cloth for living materials. If it is less than 0.1 denier, in addition to the problem of knitting properties such as yarn breakage, there is also a problem of reduction in yarn production. It is preferable to use a mixed yarn consisting of filaments having different single fiber deniers as a constituent yarn of the knitted fabric because a soft and firm warp knitted fabric can be produced.

At this time, the total fineness of the yarn is preferably 15 to 350 denier. If the denier is less than 15 denier, the knitting difficulty becomes high, defects such as thread breakage are likely to occur, and the fabric strength tends to decrease. More preferably, a knitting yarn having a total fineness of 20 denier or more is preferred. On the other hand, if the total fineness is greater than 350 denier, the knitted fabric becomes thick and has a hard texture, and it is difficult to use the fabric.

The rupture strength of the knitted fabric is preferably 3 kg / cm ² or more so as not to be broken during wearing.

Hereinafter, the method for producing the antibacterial polyester filament woven or knitted fabric of the present invention will be described.

The woven or knitted polyester filament is immersed in a liquid containing the above-mentioned antibacterial agent by a liquid jet dyeing machine or the like, and under normal pressure or pressure, at 90 to 160 ° C. for 10 to 120 minutes, more preferably at 120 to 135 ° C. It can be manufactured by heat treatment for 20 to 60 minutes. At this time, disperse dye,
If necessary, a dispersible fluorescent whitening agent may be added to the solution. Under heating conditions of less than 90 ° C., the antibacterial agent does not adhere or exhaust to the polyester fiber. On the other hand, when the temperature exceeds 160 ° C., the effect corresponding to the energy consumption cannot be obtained, and the cost performance deteriorates.

The dyeing of the woven or knitted fabric may be carried out in the usual steps of relaxing scouring, intermediate setting, dyeing and finishing setting.

In this method, after the treatment in the liquid, it is preferable to perform a dry heat treatment at 160 to 200 ° C. for 15 seconds to 5 minutes, more preferably at 170 to 190 ° C. for 30 seconds to 2 minutes, using a tenter or the like. Due to such dry heat treatment, the antimicrobial agent diffuses in from the polyester fiber surface and is distributed in a ring shape near the fiber surface inside the fiber, or exists in a state branched and diffused from the fiber surface to the inside in a branch shape. The washing durability can be improved without impairing the antibacterial property. Under the heating condition of less than 160 ° C., the effect of the dry heat treatment is not obtained. On the other hand, if the temperature exceeds 200 ° C., yellowing and embrittlement of the polyester fiber, sublimation or thermal decomposition of the dye and antibacterial agent, and increase in energy consumption are not preferred. By changing the treatment conditions, the antimicrobial agent can be controlled to each state of adhesion to the fiber surface, ring-shaped distribution inside the fiber, and diffusion inside the fiber.

Another production method is to impregnate a polyester filament woven or knitted fabric with a liquid containing an antibacterial agent in a padding bath or the like and then use a tenter or the like at 160 to 200 ° C. for 30 seconds to 1 hour.
It can be manufactured by performing heating by dry heat treatment or wet heat treatment for 0 minute, more preferably 170 to 190 ° C. for 2 to 5 minutes. Under heating conditions below 160 ° C., the antibacterial agent does not firmly adhere to the polyester fiber and / or does not exhaust. On the other hand, when the temperature exceeds 200 ° C., yellowing or embrittlement of the polyester fiber, sublimation or thermal decomposition of the dye or antibacterial agent, and increase in energy consumption are not preferred.

Further, as a process for imparting functionality, antistatic,
While keeping the texture of the woven or knitted fabric, such as deodorization, antifouling, and sweat absorption, it is possible to perform processing within a range that does not impair the object of the present invention. It is preferable to provide the function of absorbing moisture because the comfort during wearing is improved.

The antibacterial polyester filament woven or knitted fabric according to the present invention has antibacterial properties excellent in washing durability, so that it is used for office wear, work clothes, food white coat, nursing white coat, school uniform, sportswear, Ideal for kitchen clothing, lining, patient clothing, nursing care clothing, pajamas, sleepwear, aprons, shirts, skinwear, supporters, corsets, curtains, sheets, and covers It is something.

[0045]

The present invention will be described more specifically with reference to the following examples. The percentages and parts in the examples are on a weight basis unless otherwise specified. The quality evaluation in the examples was performed according to the following method. (1) Washing method Using a drum dyeing machine, Kao Corporation detergent "Zab" 2 g /
1, hydrogen peroxide solution (35% industrial use) 3 cc / l, sodium percarbonate 1.5 g / l, temperature 80 ± 2 ° C, bath ratio 1: 2
After washing at 0 for 15 minutes, and after drainage and dehydration, overflow washing was performed for 10 minutes. After that, dehydration was performed, and this was made one washing. Finally, it was dried using a tumbler dryer for 20 minutes. (2) Antibacterial test method A unified test method was adopted as the test method, and MRSA clinical isolates were used as test cells. The test was performed by pouring a bouillon suspension of the test bacterium into a sterile sample cloth, and heating at 37 ° C in a closed container.
After 8 hours of culture, the number of viable cells was counted, and the number of cells relative to the number of cultured cells was determined.

Under the condition of log (B / A)> 1.5,
g (B / C) was defined as the difference in the number of bacteria, and 2.2 or more was regarded as a pass level.

Here, A is the number of bacteria recovered and dispersed immediately after inoculation of the unprocessed product, B is the number of bacteria recovered and recovered after 18 hours of cultivation of the unprocessed product, and C is the number of bacteria recovered and recovered after culturing the processed product for 18 hours. Represent. (3) Distribution of antimicrobial agent inside fiber (3-1) Confirmation of ring-shaped distribution X-ray microanalyzer (EMAX-2 manufactured by Horiba, Ltd.)
000) to analyze the fiber cross-section, paying attention to specific elements contained in the antibacterial agent, for example, sulfur, etc.
The state of distribution of the antibacterial agent inside the fiber was evaluated. (3-2) Confirmation of Chain Diffusion The state in which the antimicrobial agent adheres on the surface of the polyester filament or is branched and diffused from the fiber surface to the inside of the polyester filament in a branched manner is measured by a scanning electron microscope (SE).
M) was confirmed by observation. (4) Tear strength JIS L-1096D method (Pendulum method) (5) Burst strength JIS L-1018A method Example 1 First, 2-pyridylthiol-1-oxide zinc, an antibacterial agent, was subjected to a colloid treatment. That is, 50 g of an antibacterial agent
Then, 20 g of a formalin condensate of naphthalenesulfonic acid and 30 g of sodium ligninsulfonate were slurried together with 300 g of water, and then subjected to wet pulverization treatment using glass beads to obtain a colloidal composition having an average particle size of 1 μm.

As a test cloth, a 75 denier-72 filament polyethylene terephthalate yarn was used for the warp and the weft, and a greige fabric having a flat structure, a warp density of 160 yarns / inch and a weft density of 95 yarns / inch was produced. . After performing the relaxing scouring (98 ° C., 10 minutes) and the intermediate setting (190 ° C., 1 minute) of the greige, the antibacterial agent colloided by the above method using a high-pressure dyeing machine was 1% owf, and the bath ratio was 1: Then, it is immersed in a solution having a pH of 5 and treated at 130 ° C. for 60 minutes in accordance with a conventional dyeing process. After this treatment, the fabric was washed again with water, dried (120 ° C., 3 minutes), and finished (180 ° C., 1 minute) to obtain an antibacterial fabric according to the usual processing steps for polyester fabric or polyester knit.

At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 2 As a test cloth, 150 denier-48 was used for warp and weft.
Using polyethylene terephthalate yarn of filament,
Example 1 except that a greige fabric having a flat structure, a density of 116 pieces / inch and a weft density of 105 pieces / inch was produced.
Same as. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 3 As a test cloth, 150 denier-30 was used for warp and weft.
Using a polyethylene terephthalate yarn as a filament, a mat structure of a plain weave change structure in which two warps and two wefts are inserted. The warp density is 56 / inch and the weft density is 56.
The procedure was the same as in Example 1 except that a greige machine of book / inch was produced. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 4 The procedure of Example 1 was repeated except that 2-chloro-6-trichloromethylpyridine was used as an antibacterial agent. At this time,
Some of the antibacterial agents adhered to the fiber surface, and most of them were distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 5 As a test cloth, 75 denier-36 filament polyethylene terephthalate yarn was used for the warp and 100 denier-48 filament polyethylene terephthalate yarn for the weft, and the fabric structure was 1/2 twill and the warp density was 172. A greige fabric having a density of 105 pieces / inch and a weft density of 105 pieces / inch was prepared, and the procedure was the same as in Example 1 except that 2-chloro-4-trichloromethyl-6-methoxypyridine was used as an antibacterial agent. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed and diffused in the fiber in a branch shape. Table 2 shows the results.

Example 6 As a test cloth, a 34 denier yarn of cotton blend containing 65% of a polyethylene terephthalate single fiber fineness of 2 denier yarn was used as a weft and a 150 denier-48 filament polyethylene terephthalate false twist yarn as a warp yarn. Textile texture is 2
/ 1 layer, density of 115 lines / inch, weft density of 86 lines /
Inch greige was made and 2-chloro-6-
Example 1 was repeated except that trichloromethylpyridine was used. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 7 As a test cloth, a twin yarn of polyethylene terephthalate false twisted yarn of 150 denier-48 filaments was used for the warp yarn, and a cotton blended 34th yarn containing 65% of a polyester single fiber fineness of 2 denier yarn was used for the weft yarn. A greige fabric having a fabric structure of 2/1 twill, a warp density of 80 yarns / inch and a weft density of 55 yarns / inch was prepared by using the same yarns alternately as the twin yarn and the warp yarn. Same as Example 1 except that 6-trichloromethylpyridine was used. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Comparative Example 1 The procedure of Example 7 was repeated, except that the weft was changed to 100% cotton and a 34th spun yarn. Table 2 shows the results.

Comparative Example 2 The procedure of Example 1 was repeated except that the average particle size of the antibacterial agent was changed to 3 μm. Table 2 shows the results.

Comparative Example 3 The procedure of Example 1 was repeated except that sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent. Table 2 shows the results.

Comparative Example 4 The procedure of Example 1 was repeated except that 1,4- (1-diiodomethylsulfonyl) benzene was used as an antibacterial agent.
Table 2 shows the results.

Comparative Example 5 The procedure of Example 1 was repeated except that 10,10′-oxybisphenoxyarsine was used as an antibacterial agent. Table 2 shows the results.

Example 8 The same test cloth as used in Example 7 was used, and the antibacterial agent used was 2-pyridylthiol-1-oxide zinc.
15 g / L of the antibacterial agent colloided by the above method
The test cloth is immersed in the liquid adjusted to
After squeezing at 0%, it is dried at 120 ° C. for 2 minutes in a tenter,
Heated at 190 ° C. for 2 minutes. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Example 9 Processing was performed under the same conditions as in Example 9 except that the heat treatment after drying was performed at 190 ° C. for 1 minute. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 2 shows the results.

Comparative Example 6 Processing was carried out under the same conditions as in Example 9 except that sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent.
Table 2 shows the results.

Comparative Example 7 Processing was performed under the same conditions as in Example 9 except that the heat treatment after drying was performed at 150 ° C. for 10 minutes. Table 2 shows the results.

[0065]

[Table 2]

Example 10 A 100% polyethylene terephthalate filament of 75 denier-72 filaments was used as a test cloth and the interlock structure of a double circular knitting machine 24G was used.
The procedure was the same as in Example 1 except that a greige of 6 wells / inch and 55 courses / inch was prepared. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 11 A 100% polyethylene terephthalate filament of 150 denier-48 filaments was used as a test cloth, the reversible structure of a double circular knitting machine 22G was used, and the knitted fabric density was 4%.
The procedure was the same as in Example 1 except that a greige of 2 wells / inch and 53 courses / inch was prepared. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 12 As a polyethylene terephthalate filament, 150
Example 1 except that denier-30 filament was used.
Processing was performed under the same conditions as in 2. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 13 As a test cloth, a double circular knitting machine 2 using 50% polyethylene terephthalate filaments of 150 denier-144 filaments with 100% cotton and 50% 34th count was used.
A greige fabric having a knitted fabric density of 42 wells / inch and 53 courses / inch with a reversible texture of 2G was prepared, and the procedure was the same as in Example 1 except that 2-chloro-6-trichloromethylpyridine was used as an antibacterial agent. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 14 A double circular knitting machine using 50% polyester filament of 150 denier-30 filaments as a test cloth and 50% of 34th yarn of cotton blend containing 65% of single denier fineness of 2 denier of polyethylene terephthalate was used. 22G reversible tissue with a knit density of 42 wells / inch, 5
A 3 course / inch greige was made. 2- as antibacterial agent
Chloro-4-trichloromethyl-6-methoxypyridine was used. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 15 As a test cloth, a 50-denier-36-filament polyethylene terephthalate false-twisted yarn was entirely packed in a front OSA using a 32-gauge 3-sheet single-tricot machine, and a middle OSA was made of 100% cotton 40-count yarn. Fully packed, 75 denier-36 filament polyethylene terephthalate false twisted yarn is used in the back stuffer, and the runner speed is 138 cm / Rc for the front boss, 44.5 cm / Rc for the middle boss, 164 cm / Rc for the back boss, and osa. The movement of the front 1001, the middle 1210, and the back 0011 produced a greige machine having a density of 42 wells / inch and 52 courses / inch. 2-Chloro-4-trichloromethyl-6-methoxypyridine was used as an antibacterial agent. The procedure was the same as in Example 1, except that the test cloth and the antibacterial agent were used. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Comparative Example 8 Processing was performed under the same conditions as in Example 11 except that the average particle size of the antibacterial agent was changed to 3 μm. Table 3 shows the results.

Comparative Example 9 As a test cloth, 100% polyethylene terephthalate filament having 30 denier-6 filaments was used.
A 6 gauge single tricot machine was used to fabricate a greige with a half tissue density of 52 wells / inch and 71 courses / inch. Sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent. The procedure was the same as in Example 1, except that the test cloth and the antibacterial agent were used. Table 3 shows the results.

Comparative Example 10 The antibacterial agent was 1,4- (1-jodomethylsulfonyl)
Processing was performed under the same conditions as in Example 14 except that benzene was used. Table 3 shows the results.

Comparative Example 11 Processing was carried out under the same conditions as in Example 14 except that the antibacterial agent was changed to 10,10'-oxybisphenoxyarsine. Table 3 shows the results.

Example 16 The same test cloth as that used in Example 12 was used, and the antibacterial agent used was 2-pyridylthiol-1-oxide zinc.
The test cloth was immersed in a liquid adjusted to / L, squeezed with a mangle at a squeezing rate of 70%, dried at 120 ° C for 2 minutes with a tenter, and heated at 190 ° C for 2 minutes. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Example 17 The procedure of Example 17 was repeated, except that the heat treatment after drying was performed at 190 ° C. for 1 minute. At this time, a part of the antibacterial agent adhered to the fiber surface, and most of the antibacterial agent was distributed in a ring shape inside the fiber. Table 3 shows the results.

Comparative Example 12 The procedure of Example 17 was repeated except that sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent. Table 3 shows the results.

Comparative Example 13 The procedure of Example 17 was repeated, except that the heat treatment after drying was performed at 150 ° C. for 10 minutes. Table 3 shows the results.

[0080]

[Table 3]

[0081]

According to the present invention, the most harsh and routinely enforceable Ministry of Health and Welfare Ordinance No. 13 known to us, while maintaining the morphological stability and strength retention of a conventional polyester filament woven or knitted fabric. It is possible to provide an antibacterial polyester filament woven or knitted fabric having excellent antibacterial properties and capable of withstanding repeated washing under a strong washing condition of 80 ° C. or more, which is performed in hospitals and the like.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A01N 43/40 101 A01N 43/40 101L 55/02 55/02 B A41B 9/00 A41B 9/00 Z 17 / 00 17/00 Z A41D 13/00 A41D 13/00 Z 13/12 13/12 31/00 31/00 H 501 501Z 502 502B 502C 503 503G // D06M 101: 32 F term (reference) 3B011 AA01 AB01 AB08 AB09 AB11 AC00 BA00 3B028 DA03 3B029 HA01 HB05 4H011 AA02 BA01 BA04 BB09 BB16 BC19 DA10 DC10 DH04 4L033 AA07 AB05 AB06 AC10 BA28 BA57 CA34

Claims (32)

[Claims] The fiber surface area per gram of the woven or knitted fabric is 0.1%.
A polyester filament having a molecular weight of 200 to 70 m ² or more.
0, inorganic / organic value = 0.3-1.4 and average particle size 2
An antibacterial polyester filament woven or knitted fabric comprising a pyridine antibacterial agent having a size of not more than μm and having a bacteriostatic activity value of not less than 2.2. 2. A polyester filament having a single fiber fineness of 5 denier or less, wherein the polyester filament has a molecular weight of 200 to 700 and an inorganic / organic value of 0.3.
An antibacterial polyester filament woven or knitted fabric comprising a pyridine-based antibacterial agent having an average particle diameter of 2 μm or less and a bacteriostatic activity value of 2.2 or more. 3. The method according to claim 1, wherein the pyridine antibacterial agent is 2-chloro-6-.
Trichloromethylpyridine, 2-chloro-4-trichloromethyl-6-methoxypyridine, 2-chloro-4-trichloromethyl-6- (2-furylmethoxy) pyridine, di (4-chlorophenyl) pyridylmethanol,
Being at least one selected from 2,3,5-trichloro-4- (n-propylsulfonyl) pyridine, zinc 2-pyridylthiol-1-oxide, and di (2-pyridylthiol-1-oxide). The woven or knitted antibacterial polyester filament fabric according to claim 1 or 2, 4. The antibacterial polyester filament woven or knitted fabric according to claim 1, wherein the pyridine antibacterial agent is 2-pyridylthiol-1-oxide zinc. 5. An antibacterial polyester filament woven or knitted fabric according to claim 1, wherein said polyester filament is colored with a disperse dye. 6. The woven or knitted antibacterial polyester filament according to claim 1, wherein said polyester filament is colored with an acid dye. 7. The woven or knitted antibacterial polyester filament according to claim 1, wherein the polyester filament is colored with a cationic dye. 8. The woven or knitted antibacterial polyester filament according to any one of claims 1 to 7, wherein the pyridine-based antibacterial agent is distributed in a ring shape near the fiber surface inside the polyester filament. . 9. The method according to claim 1, wherein the pyridine-based antibacterial agent is continuously or discontinuously branched and diffused from the fiber surface to the inside in a branched manner inside the polyester filament.
An antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 8. 10. The warp or weft according to any one of claims 1 to 9, wherein the weft density of the warp and the weft is 50 to 250 yarns / inch, and the warp or the weft has a single fiber fineness of 0.1 to 10 denier and a total fineness of 50. An antibacterial polyester filament woven fabric using a polyester filament yarn of up to 350 denier and having a tear strength of 1000 g or more. 11. The knitted fabric according to any one of claims 1 to 9, wherein the knitted fabric density is 18 to 82 wells / inch in the well direction and 22 to 130 courses / inch in the course direction. , Single fiber fineness 0.1-1
Using a polyester filament yarn having a denier of 0 and a total fineness of 15 to 350 denier, the bursting strength of the knitted fabric is 3 kg / cm.
Antibacterial polyester filament knitted fabric of ² or more. 12. An antibacterial polyester filament woven / knitted fabric according to any one of claims 1 to 9, wherein the woven fabric and the knitted fabric are combined. 13. Office wear characterized by using the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 14. A workwear comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 15. A food lab coat comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 16. A nursing lab coat comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 17. A patient garment comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 18. A care garment comprising the woven or knitted antibacterial polyester filament according to any one of claims 1 to 12. 19. A pajamas comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 20. Sleepwear characterized by using the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 21. A curtain comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 22. A sheet comprising the woven or knitted antibacterial polyester filament according to any one of claims 1 to 12. 23. A cover comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 24. A school uniform comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 25. Sportswear using the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 26. A kitchen garment using the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 27. A lining characterized by using the woven or knitted antibacterial polyester filament of any one of claims 1 to 12. 28. An apron comprising the woven or knitted antibacterial polyester filament according to any one of claims 1 to 12. 29. A shirt comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 30. An undergarment comprising the woven or knitted antibacterial polyester filament of any one of claims 1 to 12. 31. A supporter comprising the antibacterial polyester filament woven or knitted fabric according to any one of claims 1 to 12. 32. A corset comprising the woven or knitted antibacterial polyester filament of any one of claims 1 to 12.