JP2010255143A - Antifouling polyester fabric, method for producing the same, and textile product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a polyester fabric including a polyester filament yarn which is a stain resistant polyester fabric having a stain resistance against aqueous stain, stain resistance against oily stain, and stain resistance against dry soil, such as a dust, and to provide a manufacturing method of the same, and to provide a fiber product. <P>SOLUTION: The polyester fabric includes a polyester filament yarn, wherein a fluoroalkyl acrylate copolymer A containing no hydrophilic group and a fluoroalkyl acrylate copolymer B containing a hydrophilic group are applied. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  [Technical Field] The present invention relates to a polyester fabric including a polyester filament yarn, and has an antifouling property against water stains, an antifouling property against oily stains, and an antifouling property against dry soil such as dust, and a method for producing the same. And textile products.

  Polyester fabrics containing polyester filament yarns are used not only for apparel but also for applications such as car seats, upholstery, and sofas. Moreover, since the polyester fabric used for such an application is difficult to wash, it is required to have high antifouling properties.

  On the other hand, antifouling includes antifouling against water-based dirt, antifouling against oily dirt, and antifouling against dry soil such as dust, and it is necessary to appropriately select an antifouling agent corresponding to each dirt. For example, it is known to use a fluorine-based or silicone-based water and oil repellent (also referred to as “soil guard agent” or “SG agent”) for aqueous stains and oil stains (for example, patents). Reference 1, Patent Document 2, and Patent Document 3). On the other hand, for dry soil such as dust, it is known to use a fluorine-based processing agent having a hydrophilic group (sometimes referred to as “soil release agent” or “SR agent”) (for example, patent document). 4, see Patent Document 5).

  However, antifouling polyester fabrics having an antifouling property against aqueous stains, an antifouling property against oily stains, and an antifouling property against dry soil such as dust have not been proposed so far.

  Recently, a polyester fabric using an ultrafine polyester fiber having a small single fiber diameter has been proposed (see, for example, Patent Document 6). Was easily noticeable, and it was necessary to impart antifouling properties.

JP 2008-75196 A JP 2009-1933 A JP 2007-270374 A JP-A-5-59669 JP 2008-189826 A JP 2007-291567 A

  The present invention has been made in view of the above-described background, and an object thereof is a polyester fabric including a polyester filament yarn, which is antifouling against water-based dirt, antifouling against oily dirt, and dry soil such as dust. An object of the present invention is to provide an antifouling polyester fabric having antifouling properties, a method for producing the same, and a textile product.

  As a result of intensive studies to achieve the above-described problems, the present inventors have found that polyester fibers are easily charged with a positive charge, and thus dry soil stains are likely to adhere to them. However, when treated with a fluorine-based processing agent having a hydrophilic group, the polyester fibers are dried. It was found that soil stains are less likely to adhere, and that when used together with fluorine-based water and oil repellents, it is possible to obtain antifouling properties against water-based stains and antifouling properties against oily stains. The invention has been completed.

  Thus, according to the present invention, “a polyester fabric containing polyester filament yarn, the polyester fabric comprising a fluoroalkyl acrylate copolymer A containing no hydrophilic group and a fluoroalkyl acrylate copolymer containing a hydrophilic group” An antifouling polyester fabric characterized by adhering to the combined B is provided.

At that time, the hydrophilic group is preferably a hydroxyl group or a carboxyl group. The weight ratio of the fluoroalkyl acrylate copolymer A containing no hydrophilic group to the fluoroalkyl acrylate copolymer B containing a hydrophilic group may be in the range of 90:10 to 10:90. preferable. The total weight of the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group is 0.4 to 3.0 g / m per area of the fabric. It is preferable to be within the range of ² . The single filament diameter of the polyester filament yarn is preferably in the range of 10 to 1000 nm. At that time, the polyester filament yarn A is a filament yarn obtained by dissolving and removing a sea component of a sea-island type composite fiber formed by a sea component and an island component having a diameter of 10 to 1000 nm with an alkaline aqueous solution. Preferably there is.

Further, according to the present invention, a composition comprising a fluoroalkyl acrylate copolymer A containing no hydrophilic group and a fluoroalkyl acrylate copolymer B containing a hydrophilic group in a polyester fabric containing a polyester filament yarn. Is provided by immersion treatment or spray treatment, and the method for producing the above-mentioned antifouling polyester fabric is provided.
In addition, according to the present invention, there is provided any textile product selected from the group consisting of a car seat fabric, a chair upholstery, and a sofa, using the antifouling polyester fabric.

  According to the present invention, there is provided a polyester fabric comprising polyester filament yarn, which has an antifouling property against water stains, an antifouling property against oily stains, and an antifouling property against dry soil such as dust and the like. A manufacturing method and a textile product are obtained.

Hereinafter, embodiments of the present invention will be described in detail.
The polyester fabric of the present invention is a polyester fabric containing polyester filament yarns, and is hydrophilic with a fluoroalkyl acrylate copolymer A that does not contain a hydrophilic group (hereinafter sometimes simply referred to as “copolymer A”). A fluoroalkyl acrylate copolymer B containing a functional group (hereinafter sometimes simply referred to as “copolymer B”) is attached.

  Here, the hydrophilic group is preferably a hydroxyl group or a carboxyl group. That is, as the fluoroalkyl acrylate copolymer A containing no hydrophilic group, a fluoroalkyl acrylate copolymer containing no hydroxyl group or carboxyl group is preferable. On the other hand, the fluoroalkyl acrylate copolymer B containing a hydrophilic group is preferably a fluoroalkyl acrylate copolymer containing no hydroxyl group or carboxyl group.

  In the polyester fabric of the present invention, the fluoroalkyl acrylate copolymer A that does not contain a hydrophilic group contributes to antifouling properties against aqueous stains and antifouling properties against oily stains. Such a copolymer A may be one described in JP 2009-1933 A or the like and commercially available as a water and oil repellent. For example, “Asahi Guard AG-730” (product of Asahi Glass Co., Ltd.) Name), “Asahi Guard AG-950” (product name), “Asahi Guard AGE-082” (product name), and the like.

  On the other hand, the fluoroalkyl acrylate copolymer B containing a hydrophilic group contributes to antifouling properties against dry soil such as dust. As such a copolymer B, those described in Japanese Patent Application Laid-Open No. 2007-9337 and Japanese Patent Application Laid-Open No. 2008-189826, and those commercially available are “Asahi Guard AG-ST20S” (trade name) manufactured by Asahi Glass Co., Ltd. ), “Asahi Guard AG-1100” (trade name), “Unidyne TG-9901” (trade name) manufactured by Daikin Industries, Ltd., “Unidyne TG-9031” (trade name), “Nuva-4200” manufactured by Clariant Japan Product name).

  The weight ratio of the copolymer A and the copolymer B is preferably in the range of 10:90 to 90:10 (more preferably 20:80 to 80:20). When the weight ratio of the copolymer A is smaller than the above range, the antifouling property against aqueous stains and the antifouling property against oily stains may be lowered. On the contrary, if the weight ratio of the copolymer B is smaller than the above range, the antifouling property against dry soil such as dust may be lowered.

The total weight of the copolymer A and the copolymer B is preferably in the range of 0.4 to 3.0 g / m ² per area of the fabric. If the total weight is less than 0.4 g / m ^2, there is a possibility that no sufficient antifouling effect. On the contrary, if the total weight is larger than 3.0 g / m ² , the texture of the fabric may be hard.

  As a method for applying the copolymer A and the copolymer B to the polyester fabric, a known method may be used. For example, a composition containing the copolymer A and the copolymer B may be subjected to immersion treatment or spray treatment. Is preferably applied to the polyester fabric. In particular, spray treatment is preferable.

  In addition, the polyester fabric used in the present invention is not limited as long as it is a fabric containing polyester filament yarn, but the smaller the single filament diameter of the polyester filament yarn, the less likely it is to be dyed in dark color, and the stain is more conspicuous. Is more expressed and preferable.

  In that case, in the said polyester filament thread | yarn, it is important that the single fiber diameter (diameter of a single fiber) exists in the range of 10-1000 nm (preferably 100-800 nm, Most preferably, it is 550-800 nm). When the single fiber diameter is converted into a single fiber fineness, it corresponds to 0.000001 to 0.01 dtex. When the single fiber diameter is smaller than 10 nm, the fiber strength is lowered, which is not preferable for practical use. Here, when the cross-sectional shape of the single fiber is an atypical cross section other than the round cross section, the diameter of the circumscribed circle is defined as the single fiber diameter. The single fiber diameter can be measured by photographing the cross section of the fiber with a transmission electron microscope.

  In the polyester filament yarn, the number of filaments is not particularly limited, but is preferably 500 or more (more preferably 2000 to 10,000) in order to obtain a texture peculiar to ultrafine fibers. The total fineness of the polyester filament yarn (the product of the single fiber fineness and the number of filaments) is preferably in the range of 5 to 150 dtex.

  Although the fiber form of the said polyester filament yarn is not specifically limited, It is preferable that it is a long fiber (multifilament yarn) when obtaining a yanagi-like fabric. The cross-sectional shape of the single fiber is not particularly limited, and may be a known cross-sectional shape such as a circle, a triangle, a flat shape, or a hollow shape. In addition, normal air processing and false twist crimping may be applied.

  The type of polymer that forms the polyester filament yarn is not particularly limited as long as it is a polyester-based polymer. Polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, stereocomplex polylactic acid, and a third component are copolymerized. Preferred examples include polyester. Such polyester may be material recycled or chemically recycled polyester. Furthermore, the polyester obtained using the catalyst containing the specific phosphorus compound and titanium compound which are described in Unexamined-Japanese-Patent No. 2004-270097 and 2004-2111268 may be sufficient. In the polymer, a fine pore forming agent, a cationic dye dyeing agent, an anti-coloring agent, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent may be added as necessary within the range not impairing the object of the present invention. 1 type (s) or 2 or more types of an agent, a hygroscopic agent, and inorganic fine particles may be contained. Polymers such as polyamide other than polyester are not preferable because the light resistance and wear resistance of the fabric are impaired.

  The polyester filament yarn is composed of a sea component and an island component having a diameter of 10 to 1000 nm made of a sea component and polyester as disclosed in Japanese Patent Application Laid-Open No. 2007-2364. The filament yarn is preferably dissolved and removed with an aqueous solution.

  That is, as the sea component polymer, polyester, polyamide, polystyrene, polyethylene and the like having good fiber forming properties are prepared. For example, as an easily soluble polymer in an alkaline aqueous solution, polylactic acid, an ultra-high molecular weight polyalkylene oxide condensation polymer, a polyethylene glycol compound copolymer polyester, a copolymer polyester of polyethylene glycol compound and 5-sodium sulfonic acid isophthalic acid may be used. Is preferred. Among them, a polyethylene terephthalate copolymer polyester having an intrinsic viscosity of 0.4 to 0.6 obtained by copolymerizing 6 to 12 mol% of 5-sodium sulfoisophthalic acid and 3 to 10% by weight of polyethylene glycol having a molecular weight of 4000 to 12000. Is preferred.

On the other hand, as an island component polymer, a polyester such as a fiber-forming polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, or a polyester obtained by copolymerizing a third component is prepared. In the polymer, a fine pore forming agent, a cationic dye dyeing agent, an anti-coloring agent, a heat stabilizer, a fluorescent whitening agent, a matting agent, a coloring agent may be added as necessary within the range not impairing the object of the present invention. 1 type (s) or 2 or more types of an agent, a hygroscopic agent, and inorganic fine particles may be contained.
In the sea component polymer and the island component polymer, the melt viscosity of the sea component at the time of melt spinning is preferably larger than the melt viscosity of the island component polymer.

  Next, melt spinning is performed using the sea component polymer and the island component polymer. As the spinneret used for melt spinning, any one such as a hollow pin group for forming an island component or a group having a fine hole group can be used. At that time, the diameter of the island component needs to be in the range of 10 to 1000 nm. If the diameter is not a perfect circle, the diameter of the circumscribed circle is obtained. The sea-island composite weight ratio (sea: island) is preferably in the range of 40:60 to 5:95, and particularly preferably in the range of 30:70 to 10:90.

  The discharged sea-island type composite fiber is solidified by cooling air, and is preferably wound after being melt-spun at 400 to 6000 m / min. The obtained undrawn yarn is made into a composite fiber having desired strength, elongation, and heat shrinkage properties through a separate drawing process, or is taken up by a roller at a constant speed without being wound once, and subsequently drawn. Any of the methods of winding after passing through may be used. Then, twisted yarn is applied as necessary.

  In the sea-island type composite fiber thus obtained, the single yarn fiber fineness, the number of filaments, and the total fineness are within the range of the single yarn fiber fineness of 0.5 to 10.0 dtex, the number of filaments of 5 to 75, and the total fiber of 30 to 170 dtex, respectively. It is preferable that

  Next, the fabric is knitted and woven by a conventional method using the sea-island type composite fiber. In that case, the structure of the fabric is not particularly limited, and may be a normal woven fabric or knitted fabric. For example, in the case of a woven fabric, a three-fold structure such as plain weave, oblique weave, satin woven, etc. Examples are velvet. The number of layers is not particularly limited and may be a single layer or a fabric having a multilayer structure of two or more layers.

  Further, if the main purpose of the present invention is not hindered in the above-mentioned fabric, conventional dyeing processing, back surface back coating, water repellent processing, and further UV shielding or antistatic agent, antibacterial agent, deodorant agent Various processings that impart functions such as insect repellents, phosphorescent agents, retroreflective agents, and negative ion generators may be additionally applied.

  Since the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group are attached to the polyester fabric of the present invention, the antifouling property against aqueous stains It has antifouling property against oily dirt and antifouling property against dry soil such as dust.

  At that time, the water / oil repellency is preferably 3 or higher as measured by a JIS L 1092 spray test. Further, the dry soil antifouling property is preferably 3 or higher as measured by the following method. That is, using a JISL 0849 Gakushin type tester, 100.1 g of predetermined soil powder is applied and rubbed 600 times with a cotton cloth. The load at that time is 200 g. The breakdown of the dust is 20 g of Kanto loam layer powder, 80 g of concrete powder, and 0.1 g of carbon black. After the test, the test piece is taken out, and the degree of contamination is determined on a contamination gray scale.

  Next, the textile product of the present invention is any textile product selected from the group consisting of a car seat fabric, a chair upholstery, and a sofa using the polyester fabric. Since the above-mentioned polyester fabric is used for such a textile product, it has an antifouling property against aqueous stains, an antifouling property against oily stains, and an antifouling property against dry soil such as dust.

Next, although the Example and comparative example of this invention are explained in full detail, this invention is not limited by these. In addition, each measurement item in an Example was measured with the following method.
<Dissolution rate> Each of the sea and island polymers is wound up at a spinning speed of 1000 to 2000 m / min with a 0.3φ-0.6L × 24H die, and the residual elongation is in the range of 30 to 60%. Then, an 84 dtex / 24 fil multifilament was produced. The weight loss rate was calculated from the dissolution time and the dissolution amount at a bath ratio of 100 at a temperature at which the solvent was dissolved in each solvent.
<Weighting>
The basis weight was measured from JIS L 1096 8.4.2.
<Single fiber diameter>
After the fabric was photographed with an electron microscope, the single fiber diameter was measured with an n number of 5, and the average value was obtained.
<Water and oil repellency>
A JIS L 1092 spray test was conducted and 3 or more were accepted.
<Dry soil antifouling property>
Using a JIS L 0849 Gakushin type testing machine, 100.1 g of predetermined soil powder was applied and rubbed 600 times with a cotton cloth. The load at that time was 200 g. The breakdown of the pollutants was 20 g of Kanto Loam layer powder, 80 g of concrete powder, and 0.1 g of carbon black. After the test, the test piece was taken out, the degree of soiling was judged with a gray scale for contamination, and grade 3 or higher was regarded as acceptable.

[Example 1]
Using polyethylene terephthalate as the island component, polyethylene terephthalate copolymerized with 6 mol% of 5-sodium sulfoisophthalic acid and 6% by weight of polyethylene glycol having a number average molecular weight of 4000 as the sea component (dissolution rate ratio (sea / island) = 230), A sea-island type composite unstretched fiber having sea: island = 30: 70 and number of islands = 836 was melt-spun at a spinning temperature of 280 ° C. and a spinning speed of 1500 m / min, and wound up once. The obtained undrawn yarn was roller-drawn at a drawing temperature of 80 ° C. and a draw ratio of 2.5 times, and then heat-set at 150 ° C. and wound up as a sea-island type composite drawn yarn for polyester filament yarn A. The obtained sea-island type composite drawn yarn was 56 dtex / 10 fil and the cross section of the fiber was observed with a transmission electron microscope TEM. As a result, the shape of the island was round and the diameter of the island was 700 nm.

Subsequently, four of the drawn yarns were aligned to form a twisted yarn (Z direction, 250 T / m), and heat set was performed at a temperature of 70 ° C. for 30 minutes as a countermeasure against snare to obtain a warp.
On the other hand, a polyethylene terephthalate false twist crimped yarn (total fineness: 167 dtex / 48 fil, manufactured by Teijin Fibers Ltd., crimp rate: 35%) was prepared as another fiber and used as a weft.
Next, using the warp and the weft, a plain fabric was woven at a warp density of 162 / 2.54 cm and a weft density of 90 / 2.54 cm by a conventional method.

Next, the woven green machine was subjected to a 30% weight reduction process at 50 ° C. for 20 minutes with a 50 g / liter NaOH aqueous solution, whereby the sea-island type composite drawn yarn was made into a polyester filament yarn having a single fiber diameter of 700 nm.
Next, the fabric was dyed, dried, and heat set at 150 ° C. In the woven fabric, the warp was composed only of a polyester filament yarn having a single fiber diameter of 700 nm, and the weft was composed only of a polyethylene terephthalate false twisted crimped yarn (single fiber diameter: 18 μm). The basis weight was 200 g / m ² .

Next, as a fluoroalkyl acrylate copolymer A containing no hydrophilic group, “AGE-082” (trade name) manufactured by Asahi Glass Co., Ltd. is 2% by weight, and as a fluoroalkyl acrylate copolymer B containing a hydrophilic group, Daikin is used. An aqueous solution containing 4% by weight of “Unidyne TG-9031” (trade name) manufactured by Kogyo Co., Ltd. was prepared, and the aqueous solution was spray-coated on the fabric. As spray coating, “High Rotor S” manufactured by Suzuki Sangyo Co., Ltd. was used to apply a wet state of 80 g / m ² on the fabric, followed by drying at 150 ° C. for 2 minutes.

In the fabric thus obtained, the weight ratio of the fluoroalkyl acrylate copolymer A containing no hydrophilic group to the fluoroalkyl acrylate copolymer B containing a hydrophilic group was (the former: the latter) 21:79. there were. The total weight of the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group was 1.52 g / m ² per area of the fabric. Moreover, the water and oil repellency performance was 3 and the dry soil performance was grade 4, and it was excellent in antifouling property against water-based soil, antifouling property against oily soil, and antifouling property against dry soil such as dust.
Next, when the car seat was obtained using the fabric, it was excellent in antifouling property against aqueous stains, antifouling property against oily stains, and antifouling property against dry soil such as dust.

[Example 2]
In Example 1, as a fluoroalkyl acrylate copolymer A containing no hydrophilic group, 6% by weight of “AGE-082” (trade name) manufactured by Asahi Glass Co., Ltd., and a fluoroalkyl acrylate copolymer B containing a hydrophilic group As in Example 1, except that an aqueous solution containing 2% by weight of “Unidyne TG-9031” (trade name) manufactured by Daikin Industries, Ltd. was used.

In the fabric thus obtained, the weight ratio of the fluoroalkyl acrylate copolymer A containing no hydrophilic group to the fluoroalkyl acrylate copolymer B containing a hydrophilic group was (the former: the latter) 62:38. there were. Moreover, the total weight of the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group was 1.04 g / m ² per area of the fabric. Water and oil repellency performance is 3.5, dry soil performance is 3.5 grade, and has excellent antifouling property against water-based stains, antifouling property against oily stains, and dry soil such as dust. Met.
Next, when the car seat was obtained using the fabric, it was excellent in antifouling property against aqueous stains, antifouling property against oily stains, and antifouling property against dry soil such as dust.

[Comparative Example 1]
In Example 1, as a fluoroalkyl acrylate copolymer B containing no hydrophilic group and not containing a fluoroalkyl acrylate copolymer A and containing a hydrophilic group, “Unidyne TG-9031” (trade name) manufactured by Daikin Industries, Ltd. ) Was used in the same manner as in Example 1 except that an aqueous solution containing 6% by weight was used.
The fabric thus obtained had a water / oil repellent performance of 2 and a dry soil performance of 3.5 grade, and was inferior in antifouling property against water-based soil and antifouling property against oily soil.

  According to the present invention, there is provided a polyester fabric comprising polyester filament yarn, which has an antifouling property against water stains, an antifouling property against oily stains, and an antifouling property against dry soil such as dust and the like. Manufacturing methods and textile products are provided, and their industrial value is extremely great.

Claims (8)

  A polyester fabric including a polyester filament yarn, wherein a fluoroalkyl acrylate copolymer A containing no hydrophilic group and a fluoroalkyl acrylate copolymer B containing a hydrophilic group are attached to the polyester fabric. An antifouling polyester fabric characterized by that.   The antifouling polyester fabric according to claim 1, wherein the hydrophilic group is a hydroxyl group or a carboxyl group.   The weight ratio of the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group is in the range of 90:10 to 10:90. Or the antifouling polyester fabric of Claim 2. The total weight of the fluoroalkyl acrylate copolymer A containing no hydrophilic group and the fluoroalkyl acrylate copolymer B containing a hydrophilic group is 0.4 to 3.0 g / m ² per area of the fabric. The antifouling polyester fabric according to any one of claims 1 to 3, which is within the range.   The antifouling polyester fabric according to any one of claims 1 to 4, wherein a single fiber diameter of the polyester filament yarn is within a range of 10 to 1000 nm.   The polyester filament yarn A is a filament yarn obtained by dissolving and removing a sea component of a sea-island type composite fiber formed of a sea component and an island component having a diameter of 10 to 1000 nm with an alkaline aqueous solution. Item 6. The antifouling polyester fabric according to Item 5.   A composition comprising a fluoroalkyl acrylate copolymer A containing no hydrophilic group and a fluoroalkyl acrylate copolymer B containing a hydrophilic group on a polyester fabric containing a polyester filament yarn is subjected to immersion treatment or spray treatment. The method for producing an antifouling polyester fabric according to claim 1, wherein the antifouling polyester fabric is applied.   A textile product selected from the group consisting of a car seat fabric, a chair upholstery, and a sofa, using the antifouling polyester fabric according to any one of claims 1 to 6.