阅读说明：本技术 功能性布帛及其制造方法 (Functional fabric and method for producing same ) 是由 谷口文伸 野原茂 筑山智 于 2018-05-29 设计创作，主要内容包括：功能性布帛是将混入有炭黑微粒的聚酯的合成树脂膜贴合于布帛而成的,合成树脂膜为无孔质的,厚度为10μm～20μm。通过制造混入有炭黑微粒的聚酯的合成树脂膜的工序和将合成树脂膜贴合于布帛的工序来制造功能性布帛,将该功能性布帛贴合于内衣或中衣用服装的全部面或单面来制造衣服。(The functional fabric is obtained by adhering a synthetic resin film of polyester mixed with carbon black particles to a fabric, wherein the synthetic resin film is nonporous and has a thickness of 10 to 20 [ mu ] m. A functional fabric is produced by a step of producing a synthetic resin film of polyester into which carbon black fine particles are mixed and a step of attaching the synthetic resin film to a fabric, and the functional fabric is attached to the whole or one side of underwear or clothes for underwear to produce clothes.)

1. A functional fabric characterized by being obtained by bonding a synthetic resin film of polyester into which carbon black fine particles are mixed to a fabric.

2. The functional fabric according to claim 1, wherein the synthetic resin film is non-porous.

3. The functional fabric according to claim 1, wherein the thickness of the synthetic resin film is 10 to 20 μm.

4. A method for manufacturing a functional fabric, comprising:

a step for producing a synthetic resin film of a polyester into which carbon black fine particles are mixed; and

and a step of bonding the synthetic resin film to a fabric.

5. A garment characterized in that a functional fabric is formed by bonding a synthetic resin film of polyester into which carbon black fine particles are mixed to a fabric, to the whole or one side of an underwear or a clothes for underwear.

Technical Field

The present invention relates to a fabric having windproof, waterproof, moisture-permeable, and heat-insulating functions, and a method for producing the same.

Background

In winter and autumn cold-proof clothes, various methods are used to keep warm. As a well-known method, there are heat insulation and heat preservation, and heat preservation by radiant heat of absorption and reflection of far infrared rays in order to improve heat preservation performance. Further, there are clothes in which various functions required are enhanced by means of a method such as heat insulation by heat absorption and moisture absorption utilizing a kinetic energy releasing action by moisture absorption.

These garments for autumn and winter, which are lightweight and excellent in sports performance while retaining functions such as heat retention and further paying attention to aesthetic properties such as design of appearance and color, are also on the market in large quantities.

While the clothing is required to have popularity and functionality in daily life, it is sometimes necessary to add another function to the clothing for mountaineering, outdoor use, and the like, and for sports. In this case, it is required to provide clothes corresponding to the external environment and use, and shoes and clothes are added each time. Clothes such as so-called cold-proof, wind-proof and waterproof clothes are selected for the purpose of protecting the body from external stimuli, but in the case of outer clothes, middle clothes and underwear (undergarments), additional functions are also selected in accordance with the respective uses.

For applications requiring less exercise such as work and school work, clothing having wind-proof, water-proof, and water-repellent functions that can withstand severe weather such as rainstorm, extreme cold, and snow accumulation, for example, for mountain climbing, is sometimes required. In some cases, it is necessary to consider a function that is easily movable outdoors in fishery, farming, and the like, and various applications are being developed.

In this regard, for example, patent document 1 discloses a garment comprising a stack-bonded body of a pile fabric or a pile fabric and a moisture-permeable polymer film, wherein the moisture-permeable polymer film is stacked and bonded to the pile face or pile face of the fabric via a curing reaction type adhesive layer, and the weight of the garment is 1m per fabric²50 to 400g, and the amount of the adhesive applied is 1m²2-30 g, and the moisture permeable polymer film surface is positioned on the surface side of the clothes.

Disclosure of Invention

Problems to be solved by the invention

In the case of sweating due to body movement, it is necessary to adjust the temperature inside the clothing and the skin surface temperature by discharging moisture (water vapor) and the like from the body to the outside of the clothing as soon as possible. As a requirement for clothing to be worn on the body, it is important to be able to maintain (maintain) the body temperature, to discharge sweat to control the increase in body temperature in summer, and to suppress the skin surface temperature by moisture evaporation, and to prevent discomfort due to cold sweat or the like. In addition, as seen in warm-up activities before official competitions by marathons players and various players, it is sometimes necessary to warm up the body and relax muscles.

However, the clothes described in patent document 1 have a problem that it is difficult to satisfy all of the functions of wind resistance, water resistance, moisture permeability, and heat retention.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a functional fabric having wind resistance, water resistance, moisture permeability, and heat retention functions. Further, it is an object of the present invention to provide a method for producing a functional fabric having these functions.

Means for solving the problems

In order to solve the above problem, a functional fabric according to the present invention is characterized in that a synthetic resin film of polyester into which carbon black fine particles are mixed is bonded to a fabric.

The synthetic resin film is preferably non-porous, and the thickness of the synthetic resin film is preferably 10 to 20 μm.

The method for producing a functional fabric of the present invention is characterized by comprising a step of producing a synthetic resin film of polyester into which carbon black fine particles are mixed, and a step of bonding the synthetic resin film to a fabric.

Further, if a garment is produced in which the functional fabric is attached to the entire surface or one surface of an underwear or a garment for underwear, the garment can be produced to have excellent wind-proof, waterproof, moisture-permeable, and heat-insulating functions.

Effects of the invention

As described above, according to the functional fabric of the present invention, a functional fabric having wind resistance, water resistance, moisture permeability, and heat retention can be obtained.

Drawings

Fig. 1 is a view showing a procedure for producing a garment using a functional fabric according to an embodiment of the present invention.

Detailed Description

The functional fabric and the method for producing the same of the present invention will be explained below.

The functional fabric of the present embodiment is obtained by laminating a synthetic resin film composed of 100% polyester over the entire surface or a part of the fabric, and exhibits windproof, waterproof, moisture-permeable, and heat-insulating properties. The synthetic resin film is not a urethane resin or a polytetrafluoroethylene resin, but a completely nonporous film, and is a film composed of 100% polyester.

The above properties can be maintained by controlling the thickness of the synthetic resin film to 10 to 20 μm. If the thickness of the film is less than 10 μm, the film is thin and has little influence on the movement and stretchability of the fabric to be interlocked, but on the other hand, the film itself may have a problem in strength and may break or have an influence on the operation of sticking to the fabric. On the other hand, if the thickness is 20 μm or more, the wearing feeling of the garment (clothing) to be worn may become hard even if the strength is maintained, and the comfort may be impaired. Therefore, as for the thickness of the film, a thickness of 10 μm to 20 μm is most suitable.

The synthetic resin film is not a film of a laminate of polyurethane resins, but is 100% of polyester. Therefore, the film is excellent in weather resistance against ultraviolet rays and weather containing acidic or basic chemical substances, and can suppress deterioration and embrittlement due to exposure to ultraviolet rays and weather, as in the case of a film made of a urethane resin. In addition, since the membrane is non-porous, appropriate membrane strength can be maintained.

The synthetic resin film is non-porous, but has excellent high moisture permeability, and can discharge water vapor of sweat from the body to the outside. Further, it is excellent in wind resistance and water resistance. The water droplet such as rain is said to be 100 to 6000 μm, and the water vapor is known to be 0.4nm

The size of (2), the windproof performance of the synthetic resin film is 0.3cc/cm²In seconds. It is known that the air permeability of a conventional knitted underwear is 150 to 250cc/cm²A high-density fabric having an air permeability of 30 to 50cc/cm²In seconds. The water resistance of the film was 25000mm, and the general standard (gauge) was maintained. Incidentally, the umbrella needs to be 250mm, the rainstorm and snowfall needs to be 5000mm, the ski and golf clothes needs to be 10000mm, and the mountain climbing use needs to be 20000 mm. The synthetic resin film can maintain 26300g/m moisture permeability exceeding any one of the above reference values²Hour.

The synthetic resin film further effectively exhibits a heat retaining function by mixing carbon black fine particles having a function of re-reflecting infrared rays into the synthetic resin film. The re-reflection of infrared rays means that infrared rays emitted from a human body are reflected to the human body side. The carbon black fine particles act to the inside, i.e., the body side, by re-reflecting the infrared rays, thereby improving the heat retention effect without dissipating the body heat.

The following is an experimental result showing the difference between the film performance when titanium oxide was mixed into the synthetic resin film and the film performance when carbon black fine particles were mixed.

[ Table 1]

< film Property > (titanium oxide incorporation) white

< thermal Re-radiation Property > (incorporation of titanium oxide particles) white

Test method "

(general society of law) far infrared ray association-identified rule re-radiation characteristic

The 45-degree parallel reradiation method is suitable

Measurement site, surface of measurement surface …

Number of overlapping sheets … 1

"test results"

Δ T ═ 0.3 ℃ (with 95% confidence (Pr: 0.05) with significant difference)

Test specimen "

Weight per unit area of the sample: 16.0g/m²Thickness: 0.02mm (initial load 23.5kPa)

Blank (comparative) basis weight: 95.8g/m²Thickness: 0.22mm (initial load 23.5kPa)

[ Table 2]

[ Table 3]

[ Table 4]

[ Table 5]

< thermal Re-radiation Property > (incorporation of carbon Black particles) Black

Comparison of "test method" bonded and unbonded fabrics

(general society of law) far infrared ray association-identified rule re-radiation characteristic

The 45-degree parallel reradiation method is suitable

Measurement site, surface of measurement surface …

Number of overlapping sheets … 1

"test results"

Δ T ═ 0.6 ℃ (99% confidence (Pr: 0.01) with significant difference)

Test specimen "

Weight per unit area of the sample: 175.6g/m²Thickness: 0.75mm (initial load 23.5kPa)

Blank (comparative) basis weight: 164.1g/m²Thickness: 0.85mm (initial load 23.5kPa)

Evaluation mechanism for quality of textile inspection of general financial group method

[ Table 6]

[ Table 7]

[ Table 8]

[ Table 9]

In addition, the following shows experimental results regarding the light absorption and heat retention characteristics (provided by general financial institute and human resources quality evaluation).

A thermocouple temperature sensor was provided at the center of the back surface of a sample (two kinds of films, 15cm × 15cm), and the temperature change when the sample surface was irradiated with light was measured for 20 minutes under the following conditions every 1 minute.

< Condition >

Using a lamp: eye-protective lamp manufactured by Kawasaki electric corporation (PRF-500WD)

Irradiation distance: 30cm

The measurement conditions were as follows: after 10 minutes of irradiation with the lamp, the power supply to the lamp was cut off, and the measurement was carried out for 10 minutes in this state.

And (3) measuring environment: 20 + -2 deg.C, 65 + -4% RH

The determination method comprises the following steps: the samples were aligned and measured simultaneously (first time), and the sample positions were changed and measured again (second time), and the average of the two times was used as the test result.

< test result 1 >

A: (mixing with titanium oxide Fine particles) white

B: (mixing with carbon Black Fine particles) Black

[ Table 10]

As is clear from the results of the light absorption heat retaining property test based on the above test methods of the titanium oxide-mixed film (white) and the carbon-mixed film (black) shown in table 10, the carbon-mixed film is a film having a much more excellent heat retaining property.

< test result 2 >

A: adhesive (carbon film bonding) cloth

B: non-laminated cloth

[ Table 11]

According to the test results shown in table 11, the fabric having the carbon-mixed film bonded and adhered to the garment fabric exhibited a difference of 5 ℃ at maximum in heat retaining property as compared with the non-bonded fabric.

Next, a procedure for producing a garment using the functional fabric of the present invention will be described.

Fig. 1 is a view showing a procedure for producing a garment using the functional fabric of the present embodiment.

First, in the production of a functional fabric, it is necessary to produce a synthetic resin film, and the process includes melting of polyester chips (raw material pellets) → extrusion → T-die system (no stretching) → winding → corona surface treatment → film thickness confirmation inspection → profile camera inspection → product storage. In particular, the most important point in storing the synthetic resin film is that a storage method such as hanging without applying a load to the extremely thin synthetic resin film is required. When the synthetic resin film is bonded to the fabric, care must be taken not to cause wrinkling, cracking, or breaking of the synthetic resin film. In order to maintain the form of the synthetic resin film in a non-stretched state in the width direction, a polyester resin film including a crystalline region and an amorphous region in which the polyester polymer is more uniformly aligned can be formed by adjusting the temperature to 220 to 250 ℃ which is slightly lower than the thermal environment of 300 ℃ for a normal fiber material.

Using a polyurethane resin-containing adhesive in a coating amount of 7g/m²The synthetic resin film and the fabric are bonded to each other (bonding step operation). 5 to 10g/m for uniformly adhering a synthetic resin film having a thickness of 10 to 20 μm to a fabric²Is most preferred. If it is less than 5g/m²When the amount exceeds 10g/m, the bonding (adhesive strength) between the film and the fabric is insufficient and the film is easily peeled off²Although the bonding strength is improved, the synthetic resin film is hard, and unevenness due to the adhesive surface of the adhesive is likely to occur, and the quality of the garment to which the synthetic resin film is bonded is deteriorated due to the influence of the texture of the fabric.

Finally, the functional fabric obtained by bonding the synthetic resin film is bonded to clothes such as outerwear, midwear, and body wear depending on the use.

The following description will be made by using examples and comparative examples.

(example 1)

A PET sheet containing 1 wt% of carbon black fine particles was melted at a temperature of 200 to 220 ℃ to prepare a sheet-like film by a T-die method. The film was passed through a cooling roll at 20 to 25 ℃ and a thin film-like coating film was produced by a T-die method. The film take-up speed is 15 to 25 m/min.

Then, the synthetic resin film produced by the T-die method is bonded to a cloth by bonding, and the adhesive resin used is various resins such as vinyl acetate resin, acrylic resin, vinyl chloride resin, epoxy resin, and silicone resin. Here, 7g/m was used in consideration of the texture, stretchability and stretchability of the cloth²The polyurethane adhesive resin of (1). Further, a moisture-curable polyurethane resin is preferably used. The processing may be carried out at a temperature in the range of 80 ℃ to 150 ℃, but the bonding process is carried out at 120 ℃. + -. 5 ℃. The fabric and the film are bonded by dotting so as not to impair stretchability, and are bonded so as to maintain appropriate stretchability inherent to the fabric and the film.

The diameter of the carbon black fine particles mixed in the polyester chips is preferably in the range of 1/10 to 1/2 in terms of the infrared/far infrared wavelength from the application of the rayleigh light scattering theory. The carbon black fine particles having a particle diameter in this range can most effectively re-reflect infrared rays/far infrared rays emitted from living bodies (including humans).

Incidentally, it is known that the wavelength of infrared rays is 0.78 to 1.5 μm and the wavelength of far infrared rays is 3.0 to 1000 μm. Therefore, it is considered that the optimum range of the particle diameter of the carbon black is 0.08 μm to 500. mu.m. However, since the carbon black produced by the furnace method has a particle size of 3 to 500nm, any particle size of carbon black can effectively re-reflect infrared rays/far infrared rays emitted from the body.

Examples of the crystallization accelerator that can accelerate crystallization of the polyester polymer resin include metal benzoate, metal oxalate, metal stearate, high-melting PET, carbon black, metal oxide, and metal sulfate. With these accelerator substances as crystal nuclei, molecular chains of polyester (a polycondensate of terephthalic acid and ethylene glycol) are arranged in a folded state, and therefore, crystal growth (polymer orientation) causes an increase in crystalline regions (hard segments) in the polyester resin.

On the other hand, the molten polyester polymer resin is cooled to a temperature not higher than its glass transition temperature, thereby constituting a segment (soft segment) which is an amorphous region as an amorphous plastic.

A synthetic resin film made of a non-porous polyester is formed, but moisture is allowed to pass through the gaps in the non-crystalline region. Water and air having a large molecular weight cannot pass through the filter, but substances having a moisture (water vapor) level can pass through the filter. A so-called polyester film having moisture-permeable, waterproof, and windproof functions is formed. As other polyester resin crystallization accelerators, fatty acid organic esters, triallyl phosphate, polyalkylene glycol and derivatives thereof exist, but since carbon black is mixed in the polyester film, it is not necessary to add the above-mentioned accelerator again.

The amorphous region can be formed in the polyester resin film by melting the polyester sheet containing carbon black and cooling the molten polyester polymer with a cooling roll having a glass transition temperature or lower.

The synthetic resin films thus obtained were subjected to the 45-degree parallel re-radiation method, which is a rule recognized by the far infrared ray association (general corporation), and the thermal re-radiation characteristics of the respective films were described as Data (Data) in the above.

Subsequently, a predetermined fiber cloth and a film were bonded to each other by a bonding process using a moisture-curable polyurethane resin at a temperature of 120 ℃. + -. 5 ℃.

A fabric obtained by interlock knitting a sliver of a 75d/144f ultrafine fiber bundle was subjected to napping on the skin side (back side), the obtained fabric was used as the main body of a face fabric (body ground), one side of a fabric obtained by interlock knitting a blended yarn of 50/1 polyester spun yarn and cotton 60% polyester 40% 50/1 as a cloth liner was subjected to napping, a synthetic resin film mixed with carbon black was adhered thereto, and the obtained fabric was used only for the front body, thereby producing a long-sleeve round-neck T-shirt.

(example 2)

A fabric obtained by interlock knitting of a sliver of a 75d/144f ultrafine fiber bundle was subjected to napping on the skin side (back side), the obtained fabric was used as a fabric main body, one side of a fabric obtained by interlock knitting of a blend yarn of 50/1 polyester spun yarn and cotton 60% polyester 40% 50/1 as a lapping fabric was subjected to napping, a synthetic resin film containing carbon black was attached thereto, and the obtained fabric was used only for the front body to produce a long-sleeved high-neck shirt.

(example 3)

A plain jersey (ベア denim) obtained by plain-weaving a sliver of 75d/144f ultra fine fiber bundles and a 20d polyurethane yarn was napped on one side of the back surface to prepare a body fabric, a synthetic resin film mixed with carbon black was attached to a fabric obtained by double rib-weaving a 50/1 polyester spun yarn and a 50/1 blended yarn of 60% cotton and 40% polyester, and the fabric was attached only to the front of both knees of the lower body (bonding process), thereby producing front opening five-quarter pants.

(example 4)

A plain jersey obtained by plain-weaving a sliver of 75d/144f ultrafine fiber bundles and a 20d polyurethane yarn was napped on one side of the back surface to prepare a body fabric, a synthetic resin film mixed with carbon black was attached to a fabric obtained by double-rib knitting a blend yarn of 50/1 polyester spun yarn and cotton 60% and polyester 40% 50/1, and the fabric was attached only to the front of both knees of the lower body (bonding process) to prepare front-opening tights.

Comparative example 1

The PET sheet mixed with 5 to 6% of titanium oxide fine particles in consideration of the transparency of the film is melted at a temperature within a range of 200 to 220 ℃.

(other comparative examples)

The results obtained by confirming the difference between the present examples 1 to 4 and the existing products by consumers and the like are shown in the following table.

[ Table 12]

As can be seen, examples 1 to 4 were evaluated well.

(example 5)

A plain jersey obtained by plain-weaving a sliver of 75d/144f ultrafine fiber bundles and a 20d polyurethane yarn was napped on one side of the back surface to prepare a body fabric, and a synthetic resin film of 18 μm thickness mixed with carbon black was laminated on a fabric obtained by interlock-weaving a blend yarn of 60% cotton and 40% polyester 50/1 to prepare a fabric A. Similarly, a fabric B to which a synthetic resin film having a thickness of 15 μm and containing carbon black mixed therein was bonded was produced. The following shows the test results of moisture permeability and wind resistance for fabric a and fabric B.

[ Table 13]

The air permeability was not changed in the point that both were almost air impermeable, but from the test results in table 13, it was found that the fabric B to which the synthetic resin film of 15 μm was bonded had a moisture permeability improved by 10% or more compared to the fabric a to which the synthetic resin film of 18 μm was bonded, and the performance was different.

The functional fabric of the present invention has been described above based on the embodiments, but the present invention is not limited thereto, and various design changes can be made within a range that can achieve the object of the present invention and does not depart from the gist of the present invention, and all of these are included in the scope of the present invention.

Industrial applicability

The functional fabric of the present invention is useful as a fabric having wind-proofing, water-proofing, moisture-permeable, and heat-insulating functions, and when used, the fabric is suitable for clothes worn in daily life, as well as for mountaineering clothing, sportswear, and the like.