JP2000290873A - Antibacterial polyester spun yarn knitted fabric - Google Patents

Abstract

(57) [Summary] [PROBLEMS] While providing morphological stability, strength retention and the like,
Provided is a spun polyester yarn woven / knitted fabric having excellent antibacterial properties. A woven or knitted fabric has a fiber surface area of 0.1 g / g.
Using polyester spun yarn containing polyester fiber 40% by weight or more and m ² or more, the polyester fibers molecular weight from 200 to 700, an inorganic property / organic property value = 0.
An antibacterial polyester spun yarn woven or knitted fabric comprising a pyridine antibacterial agent having a particle size of 3 to 1.4 and an average particle size of 2 µm or less, and having a bacteriostatic activity value of 2.2 or more.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spun polyester yarn woven or knitted fabric having an antibacterial property, and more particularly, to an antibacterial property having an excellent antibacterial property capable of withstanding washing under strong washing conditions performed in hospitals and the like. The present invention relates to a polyester spun yarn 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 for reducing the stuffiness and stickiness, blending and cross-knitting with natural fibers such as cotton and wool and cellulosic regenerated fibers such as rayon are performed, and the comfort to sweat is maintained. However, these measures also have a small deodorizing effect, and 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 spun yarn woven / knitted fabric having excellent antibacterial properties while maintaining the morphological stability and strength retaining properties of a conventional polyester spun yarn woven / knitted fabric. Office wear, work clothes, food lab coats, nursing lab coats, school uniforms, sportswear, kitchen garments, lining, patient clothes, nursing clothes, pajamas,
To provide sleepwear, apron, shirt, underwear, supporters, corsets, curtains, sheets, and covers.

[0006]

According to one aspect of the present invention, there is provided an antibacterial polyester spun yarn woven or knitted fabric comprising 40% by weight of a polyester fiber having a fiber surface area of 0.1 m ² or more per gram of the woven or knitted fabric. A polyester spun yarn containing the above is used, and the polyester fiber has a molecular weight of 20.
0 to 700, comprising a pyridine-based antibacterial agent having an inorganic / organic value of 0.3 to 1.4 and an average particle size of 2 μm or less, and having a bacteriostatic activity value of 2.2 or more. It is a woven and knitted polyester spun yarn.

Another embodiment of the woven or knitted antibacterial polyester spun yarn of the present invention uses a spun polyester yarn containing 40% by weight or more of polyester fiber having a single fiber fineness of 6 denier or less, and the polyester fiber has a molecular weight of 200 to 70.
0, comprising a pyridine-based antibacterial agent having an inorganic / organic value = 0.3 to 1.4 and an average particle size of 2 µm or less, and having a bacteriostatic activity value of 2.2 or more. It is a polyester spun yarn knitted fabric.

[0008] Still another aspect of the present invention is an office wear using the antibacterial polyester spun yarn woven or knitted fabric,
Work clothes, food lab coats, nursing lab coats, school uniforms, sportswear, kitchen garments, lining, patient garments, nursing garments, pajamas, sleepwear, aprons, shirts, underwear, supporters, corsets, curtains, sheets, and covers.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The polyester fiber used in the woven or knitted fabric of the present invention is not particularly limited, but those having a main repeating component of polyethylene terephthalate, polybutylene terephthalate or ethylene terephthalate unit (specifically, 90 units of the 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. Among them, a fiber composed of a polyester having an ethylene terephthalate unit of 90 mol% or more as a repeating component is preferable, and a fiber composed of a polyester having an ethylene terephthalate unit of 95 mol% or more as a repeating component is more preferable. It is further preferable that the fiber is a fiber made of a polyester containing ethylene terephthalate units as a repeating component of 100 mol% (that is, polyethylene terephthalate). The cross-sectional form of these polyester fibers may be round or irregular.

The spun yarn used in the woven or knitted fabric of the present invention may be any one containing at least 40% by weight of such a polyester fiber, such as natural fibers such as cotton, wool and silk, semi-synthetic fibers such as rayon, and other fibers. Synthetic fibers may be included.

The spun yarn woven or knitted fabric of the present invention is not limited to the use of 100% polyester spun yarn, but mainly uses polyester spun yarn. The total surface area of the polyester fiber per 1 g of the spun yarn woven or knitted fabric is 0.1 m. ^If we are satisfied that the number is ² or more, weaving or knitting with other materials may be used. Further, as the structure of the spun yarn, uniform spinning, a multi-layered yarn with another short fiber, a composite spun yarn with a long fiber, and the like can be used.

The polyester fibers used in the present invention are:
Molecular weight 200-700, inorganic / organic value = 0.3-
It contains a pyridine antibacterial agent having an average particle diameter of 1.4 and 2 μm or less.

[0013] Such a pyridine-based antibacterial agent firmly adheres or exhausts / diffuses to the spun polyester yarn. 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. If these conditions are not satisfied,
The antibacterial agent does not firmly adhere to the polyester fiber, does not exhaust, and diffuses, so that 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 fiber, 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 fiber. Preferably, the molecular weight of the antimicrobial agent is between 300 and 500.

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.

[0016]

[Table 1]

In this 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, exhausted, or diffused to polyester fibers.

When the inorganic / organic value is less than 0.3, the organic property becomes too strong. On the other hand, when the value exceeds 1.4, the inorganic property becomes too strong, so that it adheres or exhausts to the polyester fiber. Difficult to spread. Inorganic / organic value is 0.35-
It is preferably 1.3, more preferably 0.4 to 1.2.

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 is more than 2 μm, it is difficult to adhere or exhaust to the polyester fibers, and also, when formed into a working liquid, the particles tend to settle, and the liquid tends to lack stability. 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 fibers are 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 fiber simultaneously with the dyeing.
Here, being colored means that the polyester fiber contains a colored substance such as a disperse dye, an acid dye, a cationic dye, and a fluorescent brightener.

The polyester fibers used in the present invention are:
The fiber has a fiber surface area of 0.1 m ² or more or a single fiber fineness of 6 deniers or less, preferably a surface area of 0.12 m ² or more or a single fiber fineness of 5 deniers or less per gram of woven or knitted fabric. Since action antimicrobial agent to the fibers to adhere or exhaustion is dependent on a single fiber fineness of the surface area or fibers of the fiber, the surface area is 0.1 m ² or more fibers or a single fiber fineness less 6 denier fibers, advanced industrial An antibacterial fiber structure having washing durability can be obtained. In addition,
The same effect can be obtained even when a plurality of types of synthetic fibers or further natural fibers are combined.

When antibacterial properties are taken into consideration, 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 in the vicinity of the fiber surface inside the polyester fiber is determined by an X-ray microanalyzer (EMAX-2000 manufactured by Horiba, Ltd.).
By analyzing the fiber cross-section using, by paying attention to a specific element contained in the antibacterial agent, for example, sulfur, etc., by evaluating the distribution state of the antibacterial agent inside the polyester fiber, that element is It can be confirmed from the fact that it exists near the fiber surface and its distribution is in a ring shape with a predetermined width when viewed from the fiber cross section.

The state in which the antibacterial agent is branched and diffused from the fiber surface into the polyester fiber in a branch form 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 or knitted fabric formed by combining 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 bacteriostatic evaluation method (unified test method) specified by the 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, "one wash" means 2 g / l of a weak alkaline detergent, 3 cc / l of a hydrogen peroxide solution (35% industrial use), 1.5 g / l of sodium percarbonate, and a temperature of 80 in accordance with JIS 1042 F-2 method.
Wash at ± 2 ° C, bath ratio 1:20 for 15 minutes, then drain, dehydrate and wash with water.
It is one that is dried for 0 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 a polyester spun yarn used as a warp or a weft, which has a cotton count of 10 to 80. If the number is higher than 80, the fabric tends to be thin without tension. On the other hand, if it is larger than 10th, 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 to use a middle yarn or a back yarn having a cotton count of 10 to 80 count. If the number is higher than 80, knitting becomes difficult, and defects such as thread breakage are likely to occur, and the fabric strength tends to decrease. On the other hand, when the number is less than 10th, needle breakage is apt to occur during knitting, so that defects such as formation of a hole in the greige machine are likely to occur, and productivity is lowered.

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

The spun yarn woven or knitted fabric of the present invention contains conductive fibers containing metal oxide, carbon, ceramic, and the like.
When used in combination, conductive fibers may be used since the antistatic property is improved and the adsorption of floating dust to which bacteria are attached due to electrostatic force is reduced.

Hereinafter, a method for producing the antibacterial polyester spun yarn woven / knitted fabric of the present invention will be described.

The polyester spun woven or knitted fabric is immersed in a solution containing the antibacterial agent using a liquid jet dyeing machine or the like,
90 to 160 ° C. for 10 to 120 minutes, more preferably 1 to 120 ° C.
It can be manufactured by performing a heat treatment at 20 to 135 ° C. for 20 to 60 minutes. At this time, a disperse dye and, if necessary, a dispersible fluorescent whitening agent may be added to the liquid. 90
The antibacterial agent does not adhere or exhaust to the polyester fiber under heating conditions of less than ° C. 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 liquid containing an antibacterial agent into a polyester spun woven or knitted fabric in a padding bath or the like and then use a tenter or the like at 160 to 200 ° C. for 30 seconds to 10 minutes, more preferably 170 to 190 ° C. For 2 to 5 minutes to perform heating by dry heat treatment or wet heat treatment. Under heating conditions below 160 ° C., the antibacterial agent does not firmly adhere to the polyester fiber and / or does not exhaust. Further, under the condition of more than 200 ° C., yellowing and embrittlement of the polyester fiber, and further sublimation or thermal decomposition of the dye or antibacterial agent,
In addition, an increase in energy consumption occurs, which is not preferable.

Further, as a process for imparting functionality, antistatic,
Processing such as deodorization, antifouling, and sweat absorption while maintaining the texture of the woven or knitted fabric may be carried out 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 spun woven or knitted fabric according to the present invention has an antibacterial property having excellent washing durability.
For office wear, work clothes, food lab coat, nursing lab coat, student clothes, sportswear, kitchen garment, lining,
For patient clothing, nursing care clothing, pajamas, sleepwear, apron, shirt, underwear, supporter, corset,
It is most suitable as a fabric used for curtains, sheets, and covers.

[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) Antibacterial evaluation (1-1) 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. (1-2) Antibacterial test method A unified test method was adopted as a 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. (2) Distribution of antimicrobial agent inside fiber (2-1) 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. (2-2) Confirmation of Chain Diffusion The state where the antibacterial agent adheres on the surface of the polyester spun yarn or is branched and diffused from the fiber surface to the inside of the polyester spun yarn in a branch form is observed by a scanning electron microscope (SEM). Confirmed by (3) Tear strength JIS L-1096D method (Pendulum method) (4) 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 the test cloth, a spun yarn of 100% polyethylene terephthalate staple with a fiber length of 38 mm and a cotton count of 30 s was used for the warp and the weft, and the woven fabric had a flat structure and the warp density was 116 /. A greige machine having an inch and a weft density of 105 pieces / inch was produced. This greige was relaxed and scoured (98 ° C, 10 minutes),
(0 ° C., 1 minute), and then using a high-pressure dyeing machine, 1% owf of the antimicrobial agent colloided by the above method, and a bath ratio of 1: 1.
It was immersed in a solution having a pH of 0 and 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 Single fiber fineness 2 of polyethylene terephthalate staple
The procedure was the same as in Example 1 except that denier 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.
Shown in

Example 3 As a test cloth, a uniform mixed spun yarn of 40% polyethylene terephthalate staple having a fiber length of 38 mm and a cotton count of 45 s having a cotton length of 60% was used as the warp and weft yarns. 2/1 twill fabric texture, 150 density
The procedure was the same as in Example 1 except that a greige machine having a density of 105 pieces / inch and a weft density of 105 pieces / 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 As a test cloth, a uniform blend spun yarn of 50% polyethylene terephthalate staple having a fiber denier of 1.7 denier and 52 mm in fiber length and 50% wool and an English count No. 60 single yarn was used for the warp and the weft. Using, the fabric structure is 2/1 twill, the warp density is 1
A greige fabric having a density of 15 threads / inch and a weft density of 105 threads / inch 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 2 shows the results.
Shown in

Example 5 As a test cloth, the warp was the same as in Example 1, and the weft was 100% cotton.
% 30-count yarn, 2-chloro-4-trichloromethyl-6- (2-furylmethoxy) as an antibacterial agent
Same as Example 1 except that pyridine was used. 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 single fiber fineness of 2 denier and a fiber length of 3
8/1 polyethylene terephthalate staple 40% and cotton 60% cotton yarn 34s twin yarn uniform blend spun yarn, 150 denier weft yarn, 48 filament polyethylene terephthalate processed yarn, 2/1 twill fabric structure, warp density Was produced in the same manner as in Example 1 except that a greige fabric having a density of 115 lines / inch and a weft density of 86 lines / inch was prepared, and 2,3,5,6-tetrachloro-4-methylsulfonylpyridine was used as an antibacterial agent. I made it. 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 7 As a test cloth, a warp yarn had a single fiber fineness of 2 denier and a fiber length of 3
Using a composite spun yarn of cotton count 30 s obtained by twisting 40 mm of 8 mm polyethylene terephthalate staple, 60% cotton carded yarn and 50 denier-36 filament polyethylene terephthalate yarn with a spinning machine, weft yarn of 150 denier-48 filaments Example 1 was repeated except that a woven fabric having a plain weave, a warp density of 116 threads / inch and a weft density of 105 threads / inch was produced using polyethylene terephthalate processed yarn. 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 8 After obtaining an antibacterial fabric in the same manner as in Example 7, 15
A dry heat finishing set at 0 ° C. for 5 minutes was performed. 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 1 was repeated except that the average particle size of the antibacterial agent was changed to 3 μm. At this time, part of the antibacterial agent was distributed in a ring shape inside the fiber, and most of the antibacterial agent was attached to the fiber surface.
Table 2 shows the results.

Comparative Example 2 The procedure of Example 1 was repeated except that sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent. At this time, part of the antibacterial agent was distributed in a ring shape inside the fiber, and most of the antibacterial agent was attached to the fiber surface. Table 2 shows the results.
Shown in

Comparative Example 3 The procedure of Example 1 was repeated except that 1,4- (1-jodomethylsulfonyl) benzene was used as an antibacterial agent.
Table 2 shows the results.

Comparative Example 4 The procedure of Example 1 was repeated except that 10,10′-oxybisphenoxyarsine was used as the antibacterial agent. At this time,
Some of the antibacterial agents are distributed in a ring shape inside the fiber,
Most were attached to the fiber surface. Table 2 shows the results.

Comparative Example 5 As a test cloth, a uniform blend spun yarn of 40% polyethylene terephthalate staple having a fiber denier of 2 mm, a fiber length of 38 mm, and a cotton count of 45 s having a cotton length of 45% was used for the warp and the weft. 2/1 twill fabric texture, 150 density
The procedure was the same as in Example 1 except that a greige machine having a density of 105 pieces / inch and a weft density of 105 pieces / inch was produced. At this time, part of the antibacterial agent was distributed in a ring shape inside the fiber, and most of the antibacterial agent was attached to the fiber surface. Table 2 shows the results.

Example 9 The same test cloth as that 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 and diffused in the fiber in a branch shape. Table 2 shows the results.

Example 10 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 and diffused in the fiber in a branch shape. Table 2 shows the results.

Comparative Example 6 Processing was performed under the same conditions as in Example 9 except that sodium 2-pyridylthiol-1-oxide was used as an antibacterial agent.
At this time, part of the antibacterial agent was distributed in a ring shape inside the fiber, and most of the antibacterial agent was attached to the fiber surface. 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. At this time, most of the antibacterial agent was attached to the fiber surface, and there was no ring-shaped distribution inside the fiber. Table 2 shows the results.

[0066]

[Table 2]

Example 11 Using a test cloth as a test cloth, a 100% polyethylene terephthalate staple having a fiber denier of 1 denier and a fiber length of 38 mm, and a spun yarn having a cotton count of 30 s, the interlock structure of the double circular knitting machine 22G was used to obtain a knitted fabric having a density of knitting. 36 wells / inch, 55
The procedure was the same as in Example 1 except that a greige of course / inch was produced. Table 3 shows the results.

Example 12 As a test cloth, a 100% polyethylene terephthalate staple having a fiber denier of 2 denier and a fiber length of 38 mm, a spun yarn having a cotton count of 30 s, and a knitted fabric having a reversible structure of a double circular knitting machine 22G having a knitting density of 42 were used. The procedure was the same as in Example 1, except that a greige of well / inch and 53 courses / inch was prepared. Table 3 shows the results.

Example 13 As a test cloth, 100% of polyethylene terephthalate staple having a denier of single fiber of 1 denier and a fiber length of 38 mm, and 50% of spun yarn of 34s cotton count were 100% cotton on the front side and 34% on the back side.
The processing was performed under the same conditions as in Example 1 except that a greige fabric having a knitted fabric density of 42 wells / inch and 53 courses / inch was produced using a reversible structure of a double circular knitting machine 22G with a count of 50%. Table 3 shows the results.

Example 14 As a test cloth, a single fiber fineness of 1.7 denier and a fiber length of 52 mm were used.
Using a uniform blend spun yarn of English 45th single yarn of 50% polyethylene terephthalate staple and 50% wool, the knitted fabric density of the single circular knitting machine 22G is 4%.
A 4 well / inch, 56 course / inch greige was made. 2-Chloro-6-trichloromethylpyridine 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.

Example 15 Using a 30-count spun yarn of cotton blend containing 65% of polyethylene terephthalate staple having a fiber denier of 2 denier and a fiber length of 38 mm as a test cloth, a knitted fabric density was obtained by an interlock structure of a double circular knitting machine 22G. Is 36 wells / inch, 55
A course / inch greige was made. 2-Chloro-4-trichloromethyl-6- (2-furylmethoxy) pyridine 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.

Example 16 As a test cloth, 50% of a 34-count yarn of cotton blend containing 65% of polyethylene terephthalate staple having a fiber denier of 2 denier and a fiber length of 38 mm was 150 denier-4 on the front side and the back side.
A greige machine having a knitted fabric density of 42 wells / inch and 53 courses / inch was produced with a reversible structure of a double circular knitting machine 22G using 50% of an 8-filament polyethylene terephthalate filament false twist yarn. 2,3 as antibacterial agent
5,6-Tetrachloro-4-methylsulfonylpyridine was used. Other than using the test cloth and the antibacterial agent,
It was the same as in Example 1. Table 3 shows the results.

Example 17 As the test cloth, 40% of polyethylene terephthalate staple having a fiber denier of 2 denier and a fiber length of 38 mm and cotton 6
Cotton count 3 in which 0% carded yarn and 50 denier, 36 filament polyethylene terephthalate yarn are twisted with a spinning machine.
Using the composite spun yarn of 0s, the interlock structure of the double circular knitting machine 22G has a knitted fabric density of 36 wells / inch, 5
The procedure was the same as in Example 1, except that a greige of 5 courses / inch was produced. Table 3 shows the results.

Comparative Example 8 Processing was carried out 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 A 30-count spun yarn of cotton blend containing 40% of polyethylene terephthalate staple having a single-filament fineness of 2 denier and a fiber length of 38 mm as a test cloth was used, and the knitted fabric was obtained with an interlock structure of a double circular knitting machine 22G. Density 36 wells / inch, 5
A 5-course / inch greige was made. 2- as antibacterial agent
Pyridylthiol-1-oxide sodium was used.
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 15 except that benzene was used. Table 3 shows the results.

Comparative Example 11 Processing was carried out under the same conditions as in Example 15 except that the antibacterial agent was 10,10'-oxybisphenoxyarsine. Table 3 shows the results.

Example 18 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. Table 3 shows the results.

Example 19 The procedure of Example 18 was repeated except that the heat treatment after drying was performed at 190 ° C. for 1 minute. Table 3 shows the results.

Comparative Example 12 The procedure of Example 18 was repeated except that sodium 2-pyridylthiol-1-oxide was used as the antibacterial agent. Table 3 shows the results.

Comparative Example 13 The procedure of Example 18 was repeated except that the heat treatment after drying was performed at 150 ° C. for 10 minutes. Table 3 shows the results.

[0082]

[Table 3]

[0083]

As described above, it is possible to provide an antibacterial polyester spun yarn woven fabric having antibacterial properties excellent in washing durability while having form stability, strength retention and the like.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D04B 1/14 D04B 1/14 // A41B 17/00 A41B 17/00 Z F-term (Reference) 3B029 HA01 HB05 4L002 AA03 AA07 AB01 AC00 BB01 DA03 EA00 EA05 FA01 4L033 AA07 AB01 AB05 AB06 AC10 BA57 CA34 4L048 AA08 AA11 AA20 AA21 AA42 AA56 AB01 AB05 AB16 AC00 AC07 BA01 BA02 CA00 CA01 CA15 DA01 DA03 DA13 DA19 EB00 EB00

Claims (32)

[Claims] The fiber surface area per gram of the woven or knitted fabric is 0.1%.
Using polyester spun yarn containing polyester fiber 40% by weight or more and m ² or more, the polyester fibers molecular weight from 200 to 700, an inorganic property / organic property value = 0.
An antibacterial polyester spun yarn woven or knitted fabric comprising a pyridine antibacterial agent having a particle size of 3 to 1.4 and an average particle size of 2 µm or less, and having a bacteriostatic activity value of 2.2 or more. 2. A polyester spun yarn containing 40% by weight or more of polyester fiber having a single fiber fineness of 6 denier or less, wherein the polyester fiber has a molecular weight of 200 to 70.
0, comprising a pyridine-based antibacterial agent having an inorganic / organic value = 0.3 to 1.4 and an average particle size of 2 µm or less, and having a bacteriostatic activity value of 2.2 or more. Polyester spun yarn woven or knitted fabric. 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 antibacterial polyester spun yarn woven or knitted fabric according to claim 1 or 2, wherein 4. The antibacterial polyester spun woven or knitted fabric according to claim 1, wherein the pyridine-based antibacterial agent is 2-pyridylthiol-1-oxide zinc. 5. The antibacterial polyester spun yarn woven or knitted fabric according to claim 1, wherein said polyester fiber is colored with a disperse dye. 6. The antibacterial polyester spun yarn woven or knitted fabric according to claim 1, wherein said polyester fiber is colored with an acid dye. 7. The antibacterial polyester spun yarn woven or knitted fabric according to claim 1, wherein said polyester fiber is colored with a cationic dye. 8. The woven or knitted antibacterial polyester yarn according to claim 1, wherein the pyridine-based antibacterial agent is distributed in a ring shape near the fiber surface inside the polyester fiber. . 9. The method according to claim 1, wherein the pyridine-based antibacterial agent is continuously or discontinuously branched and diffused from the fiber surface into the polyester fiber in a branch form. The antibacterial polyester spun yarn woven or knitted fabric according to the above. 10. The polyester spun yarn according to any one of claims 1 to 9, wherein the warp and the weft have a woven density of 50 to 250 yarns / inch, respectively, and the warp or the weft has a yarn count of 10 to 80 in terms of cotton count. Used, the tear strength of the fabric is 10
An antibacterial polyester spun yarn woven or knitted fabric having a weight of at least 00 g. 11. The knitted fabric according to claim 1, wherein the density of the knitted fabric is 18 to 82 wells / inch in the well direction and 22 to 130 courses / inch in the course direction, and the front yarn, the middle yarn or the back yarn is formed. Using polyester spun yarn of 10-80 count in terms of cotton count for warp or weft,
An antibacterial polyester spun yarn woven or knitted fabric having a burst strength of 3 kg / cm ² or more. 12. The antibacterial polyester spun yarn woven or knitted fabric according to claim 1, wherein the woven and knitted fabrics are combined. 13. An office wear comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 14. A workwear comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 15. A food lab coat, comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 16. A nursing lab coat using the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 17. A patient garment comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 18. A care garment using the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 19. A pajamas comprising the antibacterial polyester spun woven or knitted fabric according to any one of claims 1 to 12. 20. Sleepwear comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 21. A curtain comprising the antibacterial polyester spun woven or knitted fabric according to any one of claims 1 to 12. 22. A sheet comprising the antibacterial polyester spun yarn woven or knitted fabric according to any one of claims 1 to 12. 23. A cover comprising the antibacterial polyester spun yarn 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.