JP5461297B2 - Polyester fiber products - Google Patents

Description

  The present invention relates to a polyester fiber product, and more particularly to a polyester fiber product that can be advantageously used as an inner fabric of various sportswear, clothing for work clothes, or curtain fabric.

  For various sportswear inners, work clothes, curtains, etc., better heat insulation and moisture retention than other general clothes, etc., in order to respond to their usage and environment. Sex etc. are required. For this reason, fiber products used as fabrics and fabrics for work clothes and the like, and fibers in which metal thin films and layers (hereinafter referred to as metal layers) are formed according to various techniques as fibers constituting such fiber products. Products etc. are proposed and used.

  On the other hand, for textile products with a metal layer on the surface, the metal layer peels off (removes metal from the surface of the textile product) by repeated washing, and as the product is used, the heat-shielding properties, etc. are reduced. It is known that the problem of a decline in value is inherent.

  Under such circumstances, the metal layer does not peel even by repeated washing, and as a result, a fiber product that exhibits thermal insulation properties over a long period of time, in other words, a fiber product excellent in washing resistance, In addition, the development of a method for manufacturing such a textile product is underway, and various methods have been proposed.

  For example, in Patent Document 1 (Japanese Patent No. 33232751), a silicone-based resin is applied to the surface of an organic base material, a plasma treatment is performed thereon, and a thin film having a metal or an inorganic material is deposited on the plasma-treated surface. There has been proposed a method for manufacturing a vapor-deposited product characterized by the above.

  Moreover, in patent document 2 (Unexamined-Japanese-Patent No. 10-266068), a metal or an inorganic substance is put on at least a part of the surface of a polyester fabric through an intermediate agent containing at least an oxidized silicone resin and a melamine resin. A vapor-deposited fabric characterized by comprising a vapor-deposited thin film has been proposed.

  Further, in Patent Document 3 (Japanese Patent Laid-Open No. 6-146166), a resin comprising a flame-proof fabric, a solvent-type acrylic resin, a solvent-type urethane resin, or a combination thereof, and scaly aluminum fine particles. There has been proposed a method for producing a heat-shielding fabric, which comprises coating a liquid with a silane coupling agent.

  However, in the present situation where there is an increasing demand for diversification of applications and high quality, the present inventors have intensively studied the above-described fiber products and production methods thereof, and as a result, conventional fiber products having excellent washing resistance. In that case, although some washing resistance was exhibited, it was difficult to say that it was sufficient, and there was still room for improvement.

Japanese Patent No. 33232751 JP-A-10-266068 JP-A-6-146166

  Here, the present invention has been made in the context of such circumstances, and the problem to be solved is advantageous as clothing for innerwear of various sportswear, work clothes, etc., or as curtain fabric. Another object of the present invention is to provide a polyester fiber product excellent in washing resistance, which can be used in the present invention.

  In order to advantageously solve such a problem, the present invention is provided with a resin layer made of a fluorine-based resin on at least one surface of the polyester base fabric, and the surface of the resin layer is subjected to a sputtering method. A gist of the invention is a polyester fiber product provided with a metal layer made of stainless steel, chromium or titanium.

  In such a polyester fiber product according to the present invention, the surface of the resin layer is preferably subjected to low pressure plasma treatment.

  In addition, the polyester fiber product according to the present invention is preferably such that the low-pressure plasma treatment is performed in an atmosphere of 0.1 to 5.0 Pa of oxygen, argon gas, nitrogen gas, or a mixed gas composed of two or more thereof. It was implemented in.

  Thus, in the polyester fiber product according to the present invention, a resin layer made of a fluororesin is provided between the polyester base fabric and a metal layer made of a predetermined metal (stainless steel, chromium or titanium) which is the outermost layer. The metal layer adhesion to the polyester base fabric is effectively improved from where it is provided, making it difficult for the metal layer to peel off even after repeated washing. It will be demonstrated.

  In particular, before providing the metal layer according to the sputtering method, the surface of the resin layer is previously subjected to low-pressure plasma treatment, particularly 0.1 to 5.0 Pa of oxygen, argon gas, nitrogen gas, or two or more of them. By performing the low-pressure plasma treatment in a mixed gas atmosphere consisting of the above, the obtained polyester fiber product exhibits more excellent washing resistance.

It is a fragmentary sectional view showing an example of a polyester fiber product according to the present invention.

  Hereinafter, the present invention will be specifically described with appropriate reference to the drawings.

  FIG. 1 schematically shows a representative embodiment of a polyester fiber product according to the invention in its thickness cross section. In FIG. 1, a polyester fiber product 2 includes a resin layer 6 made of a fluorine-based resin and a metal layer 8 that is an outermost layer in order from the base fabric side to the outside on one surface of a polyester base fabric 4. Are integrally formed with a predetermined thickness.

  In addition, as the polyester base fabric 4, any material can be used as long as it is a sheet-like material generally used as clothing or curtain fabric and made of polyester. Specific examples include woven fabrics, knitted fabrics, polyester films, and the like made of polyester fibers.

  The thickness of the polyester base fabric 4 used in the present invention is usually 40 to 1000 μm. When the polyester base fabric is a woven fabric, the polyester yarn constituting the woven fabric has a wire diameter of 10 to 1000 denier (d).

  And in the polyester fiber product 2 which concerns on this invention, the big characteristic exists in the place in which the resin layer 6 which consists of a fluororesin is provided between the polyester base fabric 4 and the metal layer 8. FIG. That is, by providing the resin layer 6 made of the predetermined resin, the resin layer 6 and the polyester base fabric 4 and the metal layer 8 are firmly adhered to each other, and the metal layer 8 is made of the polyester even after repeated washing. The polyester fiber product 2 of the present invention exhibits excellent washing resistance because it is difficult to peel from the fiber product 2.

  In producing such a polyester fiber product 2, a resin layer 6 made of a fluororesin is first provided on the prepared polyester base fabric 4. As a method for providing the resin layer 6, any of various conventionally known methods can be adopted as long as the resin layer 6 made of a fluororesin can be produced. Among them, in particular, a treatment liquid is prepared by using a commercially available fluororesin called a fluorine-based water repellent or the like (using water or an organic solvent as necessary), and the treatment liquid is polyester. A technique of applying to the surface of the base fabric 4 is advantageously employed.

The fluororesin used in the present invention is generally selected from commercially available fluorine-based water repellents and the like, depending on the type of polyester base fabric 4 and the characteristics of the desired polyester fiber product 2. Are appropriately selected and used. As fluorine-based water repellents, Asahi Guard (trade name) manufactured by Asahi Glass Co., Ltd., NK Guard S Series (trade name) manufactured by Nikka Chemical Co., Ltd., Paraguard (trade name) manufactured by Ohara Palladium Co., Ltd., etc. Can be exemplified. In the present invention, in particular, a fluorine-based water repellent containing a fluorine-based resin represented by the following structural formula: Asahi Guard GS-10 (manufactured by Asahi Glass Co., Ltd.) is advantageously used.

As a method for applying the treatment liquid containing the fluororesin to the surface of the polyester base cloth 4, various conventionally known techniques can be employed. For example, the polyester base cloth 4 is immersed in the treatment liquid for a predetermined time. A dip method or the like is advantageously used. Moreover, after apply | coating a process liquid to the surface of the polyester base fabric 4, normally, the fluororesin contained in a process liquid is hardened by performing heat processing. Furthermore, the resin layer 6 of the present invention is produced so that the adhesion amount of the fluororesin per unit area is 0.1 to 100.0 g / m ² . If the adhesion amount is less than 0.1 g / m ² , the adhesion of the metal layer 8 may not be advantageously improved. On the other hand, even if the adhesion amount exceeds 100.0 g / m ² , This is because the adhesion of the metal layer 8 is not improved so much, and only the cost is increased, which is not economical. Here, the adhesion amount of the fluorine-based resin is calculated according to the following formula by measuring the weight of the polyester base fabric with an electronic balance before and after the resin layer formation. In addition, S (surface area of the polyester base fabric) in the following formula is S when the resin layer is formed on both surfaces (front surface and back surface) of the polyester base fabric as in the case of a dip method, for example. This is the total surface area (surface area + back surface area). When the resin layer is formed only on one surface (front surface or back surface) of the polyester base fabric with a coating roll or the like, the resin layer is formed. The area of the back surface (front surface or back surface) is S.
[Adhesion amount of fluororesin (g / m ² )] = (A−B) / S
However, A is the weight (g) of the polyester base fabric after resin layer formation,
B is the weight (g) of the polyester base fabric before resin layer formation,
S is the surface area (cm ² ) of the polyester base fabric.

  In the polyester fiber product 2 shown in FIG. 1, the resin layer 6 is formed only on one surface of the polyester base fabric 4 (in FIG. 1, the upper surface of the polyester base fabric 4). Needless to say, the polyester fiber product is not limited to the embodiment shown in FIG. Specifically, not only the resin layer and the metal layer are provided on the surface of the polyester base fabric as shown in FIG. 1, but also the back surface (the lower surface of the polyester base fabric) is provided with a resin layer, Even a metal layer provided on the surface of the resin layer is included in the scope of the present invention.

  Next, a metal layer 8 made of stainless steel, chromium, or titanium is provided on the surface of the resin layer 6 made of fluorine-based resin according to a sputtering method. In the present invention, before the metal layer 8 is provided, the resin layer It is desirable to subject the surface 10 of 6 to low pressure plasma treatment. By providing the metal layer 8 after the low-pressure plasma treatment is performed on the surface 10 of the resin layer 6, in the obtained polyester fiber product 2, the adhesion of the metal layer 8 becomes stronger and more excellent in resistance. This is because the washability is demonstrated.

  Here, the low-pressure plasma treatment generally generates plasma under a low pressure (under vacuum) and modifies the surface of the target object by this plasma. In the present invention, the conditions for performing the low-pressure plasma treatment on the surface 10 of the resin layer 6 are appropriately determined according to the type of the resin layer 6, the output of the plasma generator, etc. Is carried out in a mixed gas atmosphere consisting of oxygen of 0.1 to 5.0 Pa, argon gas, nitrogen gas, or two or more thereof. By adopting such conditions, the adhesiveness of the metal layer 8 can be effectively improved, and after the low-pressure plasma treatment, it is possible to continuously shift to the sputtering processing described later. It is because it can manufacture efficiently.

  In the present invention, a metal layer 8 made of stainless steel, chromium, or titanium is provided on the surface 10 of the resin layer 6 (which has been subjected to low-pressure plasma treatment) according to a sputtering method.

  As a sputtering method for forming the metal layer 8, a direct current magnetron sputtering method, a high frequency magnetron sputtering method, an ion beam sputtering method, or the like can be used. Sputtering can be performed by a general magnetron sputtering method using a DC power source, but by sputtering using an AC power source or a pulse power source, sputtering can be stabilized over a long period of time and a high output can be applied. It becomes. Note that the metal layer 8 of the present invention can also be formed by C-MAG of BOC in the United States, Twin Mag (dual mug) of Leibold, Germany, or Ardennes.

  The formation of the metal layer 8 in accordance with the sputtering method described above can be performed by either a batch method or a roll-to-roll method, but the roll-to-roll method can provide excellent productivity and keep the manufacturing cost low. A roll system is advantageously employed.

Moreover, the metal layer 8 is produced so that the adhesion amount of the metal (stainless steel, chromium, or titanium) per unit area is 1.0 to 1000.0 μg / cm ² . When the adhesion amount is less than 1.0 μg / cm ² , it may not be possible to advantageously improve heat shielding properties and moisture retention by providing the metal layer 8, while the adhesion amount is 1000.0 μg / cm ^2. Even if it exceeds cm ² , the heat shielding property and the like are not improved so much, and only the cost is increased, which is not economical. In addition, the adhesion amount of stainless steel, chromium, or titanium means that measured by fluorescent X-ray analysis.

  In the polyester fiber product 2 obtained as described above, since the resin layer 6 made of a fluorine-based resin is provided between the polyester base fabric 4 and the metal layer 8, the metal layer The adhesion of 8 is stronger. Therefore, the metal layer 8 is not easily peeled even by repeated washing, and exhibits excellent washing resistance, and the heat shielding effect and moisturizing effect by the metal layer 8 can be enjoyed over a long period of time. It is.

  Some examples of the present invention will be shown below to clarify the present invention more specifically. However, the present invention is not limited by the description of such examples. Needless to say. In addition to the following examples, the present invention includes various modifications based on the knowledge of those skilled in the art without departing from the spirit of the present invention, in addition to the above-described specific description. It should be understood that modifications, improvements, etc. can be made.

In the following examples and comparative examples, polyester twill [warp: (thickness: 150d, 67 / inch), weft: (thickness: 300d, 50 / inch), basis weight: 132 g / m ² ] was used. Further, the adhesion amount of the fluororesin constituting the resin layer is calculated according to the above-described method, and the adhesion amount of stainless steel, chromium or titanium constituting the metal layer is measured by fluorescent X-ray analysis.

Furthermore, about the obtained polyester fiber product, the amount of metals before and after the washing durability test was measured, and the ratio of the amount of metal remaining on the product surface (metal remaining rate) was calculated to evaluate the washing resistance. Specifically, the obtained polyester fiber product was washed according to the electric washing machine method (JIS-L-0217, washing method 103). After such washing, the sample was naturally dried and then washed again, and the washing was repeated a total of 10 times (washing durability test). Before and after the washing durability test, the sample surface was subjected to fluorescent X-ray analysis to measure the amount of metal. In addition, about the metal layer which consists of stainless steel, the quantity of iron (iron adhesion amount) contained most in stainless steel was measured. And the metal residual rate (%) was computed from the following formula. This metal residual ratio means that the larger the value, the better the washing resistance. The washing resistance of each polyester fiber product was evaluated as ◎ when the metal residual ratio was 95% or more, ◯ when 85% or more and less than 95%, and △ when less than 85%. . Table 1 below shows the evaluation results of the metal residual ratio and the washing resistance of each polyester fiber product obtained in the following Examples and Comparative Examples.
[Metal residual rate (%)]
= {Iron adhesion amount per unit area after test / Iron adhesion amount per unit area before test}
× 100

Example 1
First, the polyester base fabric is made of a predetermined concentration of fluorine-based resin (fluorinated water repellent, trade name: Asahi Guard GS-10, manufactured by Asahi Glass Co., Ltd.) and a crosslinking agent (trade name: Meikanate WEB, manufactured by Meisei Chemical Industry Co., Ltd.) ) For 1 second, followed by heat treatment at 130 ° C. for 90 seconds to cure the fluororesin, thereby providing a resin layer made of a fluororesin on the surface of the polyester base fabric. In addition, the adhesion amount of the fluorine-type resin which comprises this resin layer was 5.2 g / m < ² >.

Next, the polyester base fabric on which the resin layer is formed is set in a vacuum chamber, the inside of the chamber is once evacuated to a vacuum degree of 7 × 10 ⁻³ Pa, and then oxygen gas of 25 sccm is introduced into the chamber. The inside was adjusted to gas pressure: 1.5 Pa. And the low-pressure plasma process was performed with respect to the surface of the resin layer by applying high frequency electric power of 13.56 MHz: 200W for 1 minute.

After such low-pressure plasma treatment, the polyester base fabric is set again in the apparatus, and the inside of the chamber is once evacuated to a vacuum degree of 7 × 10 ⁻³ Pa, and then argon gas of 28 sccm is supplied. After introduction, the gas pressure in the chamber was adjusted to 1.9 Pa. Then, using stainless steel (SUS310S) as a target material, 13.56 MHz high frequency power: 450 W was applied for 1 minute to perform sputtering, thereby obtaining a polyester fiber product having a structure as shown in FIG. In the metal layer made of stainless steel formed on the surface of the resin layer, the adhesion amount of stainless steel was 30.5 μg / cm ² .

-Example 2-
A polyester fiber product was produced according to the same conditions as in Example 1 except that the adhesion amount of the fluororesin constituting the resin layer was 3.5 g / m ² . In the metal layer made of stainless steel formed on the surface of the resin layer, the adhesion amount of stainless steel was 30.4 μg / cm ² .

-Example 3-
A polyester fiber product was produced according to the same conditions as in Example 1 except that the surface of the resin layer was not subjected to low-pressure plasma treatment. In the metal layer made of stainless steel formed on the surface of the resin layer, the adhesion amount of stainless steel was 30.1 μg / cm ² .

Example 4
A polyester fiber product was prepared in the same manner as in Example 1 except that the sputtering conditions were changed so that the adhesion amount of stainless steel was about 0.5 times. In the metal layer made of stainless steel formed on the surface of the resin layer, the adhesion amount of stainless steel was 14.2 μg / cm ² .

-Example 5
A polyester fiber product was prepared in the same manner as in Example 1 except that the sputtering conditions were changed so that the amount of stainless steel adhered was about 1.7 times. In the metal layer made of stainless steel formed on the surface of the resin layer, the adhesion amount of stainless steel was 50.3 μg / cm ² .

-Example 6
A polyester fiber product was prepared in the same manner as in Example 1 except that chromium was used in place of stainless steel (SUS310S) as a sputtering target material. In addition, in the metal layer made of chromium formed on the surface of the resin layer, the adhesion amount of chromium was 29.8 μg / cm ² .

-Example 7-
A polyester fiber product was prepared in the same manner as in Example 1 except that titanium was used in place of stainless steel (SUS310S) as a sputtering target material. In the metal layer made of titanium formed on the surface of the resin layer, the amount of titanium deposited was 30.3 μg / cm ² .

-Comparative Example 1-
A polyester fiber product was produced according to the same conditions as in Example 1 except that the resin layer was not provided and the low-pressure plasma treatment was not performed, and the washing resistance was evaluated.

  As is clear from the results in Table 1, it was confirmed that the polyester fiber product according to the present invention exhibits excellent washing resistance.

2 Polyester fiber products 4 Polyester fabric 6 Resin layer 8 Metal layer

Claims (3)

  A resin layer made of a fluororesin is provided on at least one surface of the polyester base fabric, and a metal layer made of stainless steel, chromium or titanium is provided on the surface of the resin layer according to a sputtering method. Polyester fiber products.   The polyester fiber product according to claim 1, wherein the surface of the resin layer is subjected to low-pressure plasma treatment. The polyester according to claim 2, wherein the low-pressure plasma treatment is performed in an atmosphere of 0.1 to 5.0 Pa of oxygen, argon gas, nitrogen gas, or a mixed gas composed of two or more thereof. Fiber products.

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