JP4141928B2 - Functional fabric, fiber product using the same, and product using at least a part thereof - Google Patents

Description

  The present invention relates to a functional fabric having all the functions of stretchability, water absorption / diffusion (fast drying), and antibacterial and antistatic properties excellent in durability, a textile product using the fabric, and the The present invention relates to a human body wear product using at least a part of a fabric.

  Textile products such as work clothes are required to have all functions such as stretchability, water absorption diffusion (quick drying), and antibacterial and antistatic properties excellent in durability.

  Fabrics that appeal for each of the above functions are already common, but most fabrics have such functions in post-processing. In post-processing, since the fiber surface is processed, there is a problem in durability such as antibacterial properties and antistatic properties.

  On the other hand, Patent Document 1 proposes a fabric defining moisture absorption / release parameters, frictional voltage, dust generation amount, and tearing strength. Patent Document 2 proposes a fabric using conductive fibers containing a pyridine antibacterial agent. However, since both are woven fabrics, they are inevitably inferior in stretchability and flat surface contact, and thus have a strong stickiness when in contact with the human body. Conversely, in order to solve this problem, there is a method in which cotton yarn is mixed, but in this case, there are problems in terms of dust generation and difficulty in drying. That is, it is difficult to provide a fabric having all the above functions using a woven fabric.

  Patent Document 3 proposes a woven or knitted fabric provided with polysulfonic acid and a quaternary ammonium salt. However, this is not enough, and since it is actually performed by post-processing, it is difficult to process, requires stable management, and requires complicated management to maintain the quality of the fastness. Absent.

Japanese Patent Laid-Open No. 10-8347 JP 2000-290874 A Japanese Patent Laid-Open No. 11-1875

  In view of the above problems, an object of the present invention is to provide a functional fabric that has all the functions of antibacterial and antistatic properties excellent in stretchability, water absorption and diffusion (quick drying), and durability. Furthermore, another object of the present invention is to provide a textile product having all of these functions and a human-wearable product comprising a fabric having a part of the product having all of these functions.

The present invention relates to a textile product comprising a knitted fabric containing 3% by weight or more of a polyester filament kneaded with an antibacterial agent, 0.2 to 5% by weight of a conductive polyester filament, and 5% by weight or more of a modified cross-section polyester filament , This is achieved by a human-wearable fiber product in which an antibacterial agent-kneaded polyester filament, a conductive polyester filament, and a modified cross-section structure polyester filament are arranged on one side of the ground, and this one side is used on the skin side .

  In the present invention, a knitted fabric composed of monofilaments and / or multifilaments is preferable.

  The knitted fabric preferably has a mesh structure on one side. It is preferable that a polyester filament of 3.5 dtex or less exists in the outermost part of the mesh structure.

In addition, the human-wearable textile product can be suitably used for clothing and shoe lining.

  In addition, this is achieved by a product worn by the human body using at least a part of the knitted fabric.

  The effect of the present invention is that a functional fabric having all the functions of antibacterial and antistatic properties excellent in stretchability, water absorption and diffusion (quick drying), and durability at once can be obtained. It is possible to provide a fiber product having all of these functions, or a product in which a part of the product is made of a fabric having all of these functions.

  For example, when used in work clothes, the number of times of washing increases because it has water-absorbing and diffusing properties, comfort, antibacterial properties, and anti-static properties without wearing underwear. However, it is possible to maintain a long-lasting antibacterial and antistatic property, and because it is stretchable, it has good work mobility and a certain degree of dust resistance, so it dislikes dust like a clean room. It can be applied to work clothes for places.

  In addition, when used for shoe linings, it is hard to stuffy due to its water-absorbing diffusivity, and the part that directly hits the foot has antibacterial properties, so that it can maintain a durable antibacterial property even after washing. is there. Furthermore, in the case of shoes, it is necessary to shape the foot along the roundness of the foot and the movement of the foot, so that stretchability works effectively.

  The knitted fabric of the present invention contains 3% by weight or more of a polyester filament kneaded with an antibacterial agent, and contains 0.2 to 5% by weight of a conductive polyester filament in a ratio to the total weight of the knitted fabric, Moreover, the modified cross-sectional structure polyester filament is contained in an amount of 5% by weight or more in a ratio to the total weight of the knitted fabric.

  Preferably, the knitted fabric is made of monofilament and / or multifilament. This is because monofilaments and / or multifilaments can suppress dust generation.

  The filament used is preferably a knitted fabric made of polyester filament. By increasing the ratio of the polyester filament, the water absorption diffusibility is further increased.

  Since the fabric of the present invention is a knitted fabric, it has excellent stretch properties.

The antimicrobial agent kneaded polyester filament used in the present invention is one in which an antibacterial agent having heat resistance is kneaded at the time of producing the polyester filament, and the antimicrobial agent does not exist only on the surface of the polyester filament. If a filament in which an antibacterial agent is present only on the surface is used due to application, adhesion, etc., antibacterial durability, for example, antibacterial properties will not be sustained when washing is repeated. However, when strong antibacterial properties are required at the initial stage of use, it is possible to apply an antibacterial agent to the surface.

  As the antibacterial agent to be used, a method using metal ions such as silver, zinc and copper is conceivable, but silver ions that are most likely to obtain an antibacterial effect are preferable, and more preferable are durability and less yellowing problem. More preferably, the antibacterial agent is based on glass.

  As described above, the polyester filament kneaded with the antibacterial agent should contain 3% by weight or more in proportion to the total weight of the knitted fabric. If it is 3% by weight or more, a sufficient antibacterial effect can be obtained. Considering the antibacterial effect, there is no problem in increasing the content of polyester filaments kneaded with antibacterial agents, but the ratio of polyester filaments kneaded with antibacterial agents is not so high due to cost problems and problems with the strength of the entire fabric. good. Preferably it is 3 to 30% by weight.

  As the conductive polyester filament used in the present invention, the surface of the polyester filament is coated or plated with a metal component such as titanium oxide or cuprous iodide or a conductive component in which conductive carbon black is dispersed. Various types of conductive polyester filaments such as conductive composite fibers obtained by composite spinning of a conductive component and a non-conductive component can be used. However, the conductive polyester filament by the above coating or plating is not suitable because the conductive component easily peels off and falls off when washing or the like is repeated, and a conductive composite fiber excellent in durability is used. Preferably used. In particular, when conductive inorganic particles such as titanium oxide are used as the conductive component, the color of the fiber itself is greatly reduced compared to when conductive carbon black is used, providing a fiber product with excellent color tone. It can be used more preferably.

  As described above, the conductive polyester filament must be contained in an amount of 0.2 to 5% by weight based on the total weight of the knitted fabric, and if it contains 0.2% by weight or more, sufficient antistatic properties can be obtained. It is done. The conductive polyester filaments presently present are slightly colored, so if the amount is 5% by weight or less, the color is inconspicuous, and a desired color or pattern can be designed. Preferably, it is 0.2 to 1.5% by weight.

  The modified cross-section structure polyester filament used in the present invention has a modified degree of 1.2 to 2.0. Preferably, it is 1.5-2.0. This irregularity refers to a value obtained by dividing the cross-sectional circumference of a fiber by the circumference of a circle having the same area as the cross-sectional area. When the degree of irregularity is high, the gap between the filaments increases, and water absorption and diffusivity are manifested by capillary action.

  The cross-sectional shape is preferably Y-shaped or X-shaped. This Y-shape refers to a shape that is divided into three parts, although the angle is not particular. The X shape refers to a shape divided into four parts. Even if it is not symmetrical like Y or X, it is important that it is broken into three or four. The Y-shape is easy to manufacture in a modified cross-section, and contributes to the capillary phenomenon between the three parts of the Y-shaped and the four parts of the X-shaped together with the gap between the filaments. Therefore, it is more efficient.

  The deformed cross-section structure polyester filament should contain 5% by weight or more in a ratio to the total weight of the knitted fabric.

  The polyester filament knitted fabric is preferably provided with a polyester filament kneaded with an antibacterial agent, a conductive polyester filament, and a modified cross-section structure polyester filament on one side.

When the side where these polyester filaments are arranged becomes a textile product, the effect is more exhibited when used on the skin side. A general polyester antibacterial effect is preferable because the antibacterial effect on the skin side is further increased by disposing a polyester filament mixed with an antibacterial agent on the skin side of the knitted fabric. Since the presently existing conductive polyester filaments are slightly colored, they are preferably arranged on the skin side in order to avoid the influence on the surface as much as possible. If the deformed cross-section structure polyester filament is exposed to the outside, it may be directly subjected to a strong force from the outside. In this case, the corner of the deformed section may be missing, so that it is preferably disposed on the skin side.

  The structure of the knitted fabric is preferably a mesh structure on one side. The surface of the mesh structure is preferably arranged on the skin side. By being arranged on the skin side, the skin is touched by point contact, so that a sticky feeling can be suppressed. The mesh structure is a mesh-like structure in which the mesh portion of the mesh is raised like a ridge and the mesh portion is recessed from the mesh portion. The height difference between the ridge portion and the mesh portion is preferably 0.2 mm or more.

  Furthermore, it is preferable that a polyester filament of 3.5 dtex or less exists in the outermost part of the mesh structure. This is a portion that directly hits the skin, and this can eliminate the rough feeling on the side that hits the skin.

  Examples of the textile products using this fabric include factory work clothes and caregiver clothes used under severe conditions.

  Examples of the product using at least a part of the fabric include shoes, a hat, a chair upholstery, and a mat.

  These textile products and products are used in the fabric, which is suitable for exhibiting all the functions of antibacterial and antistatic properties excellent in stretch properties, water absorption and diffusion (quick drying), and durability. And effective. In particular, it is suitable for application to products that touch human skin and products that humans wear.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated, this invention is not limited to this Example.

The measuring method is shown below.
<Stretchability>
Test environment: 20 ± 2 ° C., 65 ± 2% RH
Sample size, number of sheets: vertical 300 mm × 50 mm, 3 (cut along the stitches so as not to skew)
Grasp interval (L): 250mm
Weight: 500g
L1: The sample is hung in the vertical direction, a weight of 500 g is hung with a holding interval of 250 mm, and the length of the extended holding portion is measured in mm after one minute has passed.
Stretchability (elongation rate) = (L1-L) / L × 100

<Water absorption diffusivity>
Both tests were measured after JISL0217 103 method suspension drying 3 times.
1) Water absorption: JIS L1907 birec method (measured by cutting to 2.54 cm width and immersing in water for 10 minutes.)
2) Drying property: Three 10 cm × 10 cm samples were collected, and the weight of each sample was measured (W). Approximately 30% of its own weight of water is dropped near the center, and the weight is measured (W1). Thereafter, the sample is left in a standard state (20 ° C., 65%), and the weight is measured at regular intervals (W2).
Dryability (evaporation rate%) = (W1−W2) ÷ (W1−W) × 100

<Antimicrobial properties>
JIS L1902-2002 10. Quantitative test 10.1 A test was performed based on the bacterial solution absorption method.
Test bacteria: MRSA (Staphylococcus aureus IID1677), Staphylococcus aureus ATCC 6538P, Klebsiella Pneumoniae ATCC 4352
Measurement of the number of viable bacteria: Pour plate culture method Washing method: High-temperature accelerated washing method (using JAFET standard combination detergent) The number of washings was 50. A = the number of bacteria collected immediately after ingestion of bacteria on the standard test cloth B = the number of bacteria collected after 18 hours of culture of the standard test cloth C = the bacteriostatic activity collected after 18 hours of cultivation of the cloths of Examples and Comparative Examples Value = log (B / C)
Bactericidal activity value = log (A / C)

<Electrical control>
Measurement of initial charging voltage and half-life after rubbing a sample conditioned under an atmosphere of 20 ° C. × 40% RH using wool as a friction cloth 10 times based on JIS L1094-1998 triboelectric charge decay measurement method Went.

<Fabric texture>
5 subjects tested 30cm x 30cm test pieces for softness and suppleness, and evaluated according to the following 4 levels, and evaluated the average value of 3 points excluding the lowest and highest among 5 points. And
Level ◎ Very good ○ Good △ Somewhat bad × Bad

<Comprehensive evaluation>
Stretchability: 10% or more passes.
Water absorption: 10 mm or more is acceptable for both length and width.
Dryability: 50% or more passed.
Bacteriostatic activity value: 2.2 or more passed.
Bactericidal activity value: 0 or more passed.
Antistatic property: 3000V or less passes.
Antistatic half-life: 60 seconds or less passed.
Fabric texture: ○ or better.
Based on the above acceptance criteria, those that were all acceptable were evaluated as ◯, those that were judged not significantly deviated from the acceptance criteria were judged to be in a usable range, and others were evaluated as ×.
<Example 1>
A knitted fabric was prepared using a 22 gauge circular knitting machine. Kanebo Synthetic Co., Ltd. polyester, Kanebo Synthetic Co., Ltd. Rib Fresh P Super, Kanebo Synthetic Co., Ltd. Aqua Stealth (variant degree 1.8), and Kanebo Synthetic Co., Ltd. Beltron were used. Table 1 shows the types of yarn and how to use them.

  FIG. 1 shows a knitting structure and FIG. 2 shows an external view. FIG. 1 shows a knitting structure diagram, where the upper side of the yarn supply is a dial, the lower side is a cylinder, and the dial side is the front side when actually used. The dotted line shows the belt belts aligned. FIG. 2 shows the appearance of the fabric configuration.

<Examples 2 and 3, Comparative Examples 1 and 2>
Table 2 shows the results of changing the mixing ratio of Rib Fresh P Super, Aquasterus, and Bertron. The yarn used is shown in Table 1.

  From the above results, a knitted fabric having excellent stretch properties, water-absorbing quick-drying properties, antibacterial properties, antistatic properties and excellent fabric texture was obtained.

<Example 4>
Work clothes were prepared using the fabric of Example 1. As a result of 10 workers wearing and working for 8 hours, all 10 responded that they had good stretchability, were very easy to work, and were not sticky and comfortable.

<Example 5>
Shoes were prepared using the fabric of Example 1 as a shoe lining. As a result of wearing 10 people for 4 hours and having a general life, all 10 people answered that the stuffiness of shoes was improved.

  As described above, the fabric of the present invention is a functional fabric having all the functions of antibacterial and antistatic properties excellent in stretchability, water absorption and diffusion (quick drying), and durability at one time. It is considered to be preferably used for work clothes, shoe linings, etc. used under severe conditions. Further, the present invention is not limited to these, and is used for a textile product having various functions, or a textile product using a fabric for a part of the product.

FIG. 1 is a knitting structure diagram of the first embodiment. Examples 2-3 and Comparative Examples 1 and 2 follow this. FIG. 2 is an external view of the first embodiment.

Explanation of symbols

A: Fabric surface B: Fabric back a: Surface layer b: Intermediate layer c: Inner layer d: Conductive yarn e: Mesh, concave portion f: Point contact portion, convex portion

Claims (6)

A textile product comprising a knitted fabric containing 3% by weight or more of an antibacterial agent kneaded polyester filament, 0.2 to 5% by weight of a conductive polyester filament, and 5% by weight or more of a deformed cross-sectional structure polyester filament , on one side of the knitted fabric An antibacterial kneaded polyester filament, a conductive polyester filament, and a modified cross-section structure polyester filament, and this one side is used on the skin side . The human-wearable fiber product according to claim 1, comprising a monofilament and / or a multifilament. The human body-wearable textile product according to claim 1 or 2 , wherein one side has a mesh structure. The human-wearable textile product according to claim 3 , wherein a polyester filament of 3.5 dtex or less is present in the outermost portion of the mesh structure. A garment in which the knitted fabric of claims 1 to 4 is mixed with an antibacterial agent polyester filament, a conductive polyester filament, and a modified cross-section structure polyester filament on one side of the knitted fabric, and this one side is used on the skin side. A lining for a shoe in which the knitted fabric of claims 1 to 4 is kneaded with an antibacterial agent on one side of the knitted fabric, a polyester filament, a conductive polyester filament, and a modified cross-section structure polyester filament, and the one side is used on the skin side.

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