JP2010024570A - Woven fabric for wiping and wiping product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a woven fabric for wiping which has extremely excellent wiping properties and dust collecting properties, a method for producing the same and a wiping product. <P>SOLUTION: The woven fabric for wiping is obtained by arranging a composite yarn C comprising a polyester multifilament yarn A having a single filament diameter of 50-1,500 nm and a polyester multifilament yarn B having a single filament diameter of 5-30 μm in only one of warp and weft of woven fabric and a polyester multifilament yarn D having a single filament diameter of 8-20 μm in the other. In the composite yarn C, the ratio DA/DB of the yarn length DA of the polyester multifilament yarn A to the yarn length DB of the polyester multifilament yarn B is not less than 1.05 and the composite yarn C includes a floating construction having a number of floating warps or wefts of not less than 2 as a warp floating component and/or a weft floating component. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wiping fabric and a wiping product that are extremely excellent in wiping and dust collection.

  Conventionally, wiping products such as a wiping cloth and a wiping tape have been used for applications such as cleaning cloths, eyeglasses and lens wiping. And many of them have been used natural fibers such as cotton fibers as fiber materials with good water absorption, and ultrafine fibers that are expected to increase the adsorption power by increasing the fiber surface area in the fabric (for example, Patent Literature 1, Patent Literature 2, Patent Literature 3, and Patent Literature 4). Today, wiping products are widely deployed in industrial fields such as IC and semiconductor manufacturing factories and clean rooms. The wiping products for industrial fields are required to have more fine dust, dust, oil and other wiping properties and dust trapping properties due to recent advances in precision. However, it cannot be denied that the conventional fabrics using ultrafine fibers have insufficient performance with respect to the level required in recent years.

  In addition, this applicant proposed the textile fabric for wiping containing the polyester multifilament yarn with a single fiber diameter of 50-1500 nm in Japanese Patent Application No. 2007-300309. Further, a woven fabric containing a floating structure having two or more floats as a warp-floating component and / or a weft-floating component is completely different from the present invention, but is known, for example, in Patent Document 5.

Japanese Patent Laid-Open No. 61-228821 JP 2005-160721 A Japanese Patent Laid-Open No. 11-152644 JP 2006-336118 A Japanese Patent No. 3356438

  This invention is made | formed in view of said background, The objective is to provide the textile fabric for wiping which is extremely excellent in wiping off and dust collection property, its manufacturing method, and a wiping product.

  As a result of intensive investigations to achieve the above-mentioned problems, the present inventors have determined that a composite yarn comprising a polyester multifilament yarn having a single fiber diameter of 50 to 1500 nm and a polyester multifilament yarn having a specific single fiber diameter is used as a warp and a weft of a woven fabric. If a polyester multifilament yarn having a specific single fiber diameter is arranged on one side and a fabric having a specific woven structure is obtained on the other side, a wiping fabric excellent in wiping and dust collection properties is obtained. As a result, the present invention has been completed.

  Thus, according to the present invention, “a woven fabric for wiping, a composite yarn C including a polyester multifilament yarn A having a single fiber diameter of 50 to 1500 nm and a polyester multifilament yarn B having a single fiber diameter of 5 to 30 μm is provided. The polyester multifilament yarn D having a single fiber diameter of 8 to 20 μm is arranged on one of the warp and the weft, and the other yarn is the polyester multifilament yarn A in the composite yarn C. The ratio DA / DB between the length DA and the yarn length DB of the polyester multifilament yarn B is 1.05 or more, and the number of floats is 2 when the composite yarn C is used as a warp float component and / or a weft float component. A wiping fabric characterized in that it comprises more than one floating structure. "

  At that time, the number of filaments of the filament yarn A is preferably 1000 or more. Moreover, it is preferable that the filament yarn A is a yarn obtained by dissolving and removing a sea component of a sea-island composite fiber composed of a sea component and an island component. In the polyester multifilament yarn B, the number of filaments is preferably 10 to 150 and the total fineness is preferably in the range of 30 to 110 dtex. Moreover, in the polyester multifilament yarn D, it is preferable that the number of filaments is 10 to 300 and the total fineness is in the range of 30 to 220 dtex.

  Further, according to the present invention, a mobile phone, eyeglasses, lens, liquid crystal material, large-scale integrated circuit, electronic information material, electronic equipment, medicine, medical instrument, pearl, jewelry, which uses the wiping fabric described above. There is provided a wiping product for use in any application selected from the group consisting of: furniture, and automotive parts.

  ADVANTAGE OF THE INVENTION According to this invention, the textile fabric for wiping which is extremely excellent in wiping off and dust collection property, its manufacturing method, and a wiping product are obtained.

Hereinafter, embodiments of the present invention will be described in detail.
Conventionally, many wiping products such as wiping cloths and wiping tapes have used ultra fine fibers that are expected to increase the adsorption power by increasing the fiber surface area in the fabric. The characteristics of the wiping product using ultrafine fibers are that water absorption and oil absorption increase due to the capillary phenomenon of the interstices between fibers, and a sharp multi-shaving effect peculiar to ultrafine fibers can be expected. Here, the sharp multi-shaving effect is an effect utilizing a large surface area and a large number of fibers in a certain area. As the number of times of fiber contact with the object becomes much larger, the ultrafine fiber scrapes fine dust and fat. The present invention effectively wipes off dust due to the effect of ultrafine fibers and moderate frictional resistance against the object to be wiped, and the wiped dust forms a concavo-convex structure difference between the warp and weft constituting the fabric. It is characterized in that it employs a woven structure that is collected at the concave intersections (tissue points). When wiping with a cloth composed only of thick fibers or a cloth having a flat surface, dust and oil accumulated in the entire fibers due to the movement of the fibers are caught again under the fibers, and the removal function is inferior. On the other hand, when wiping with a cloth composed of only ultrafine fibers, the frictional resistance with the object to be wiped becomes too high, and the removal function is rather inferior.

  First, in the wiping fabric of the present invention, the polyester multifilament yarn A has a single fiber diameter (single fiber diameter) in the range of 50 to 1500 nm (preferably 100 to 1000 nm, particularly preferably 550 to 800 nm). Is essential. When such a single fiber diameter is converted into a single yarn fineness, it corresponds to 0.00002 to 0.022 dtex. Here, when the single fiber diameter is less than 50 nm, not only the production becomes difficult, but also the fiber strength is lowered, which is not practically preferable. On the other hand, when the single fiber diameter exceeds 1500 nm, when the wiping fabric is used as a wiping product, a sufficient wiping property cannot be obtained, which is not preferable. In addition, 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 multifilament yarn A, the number of filaments is not particularly limited, but is preferably 1000 or more (more preferably 2000 to 10000). Further, the total fineness of the polyester multifilament yarn A (product of the single fiber fineness and the number of filaments) is preferably in the range of 5 to 200 dtex.
It is preferable that the maximum and minimum widths of the single fibers constituting the polyester multifilament yarn A are within 50% of the average fiber diameter because uniform wiping properties can be obtained.

  Preferred examples of the polymer that forms the polyester multifilament yarn A include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, polyester obtained by copolymerization of the third component, and the like. 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.

  On the other hand, it is important that the polyester multifilament yarn B has a single fiber diameter in the range of 5 to 30 μm (preferably 10 to 20 μm). If the single fiber diameter is less than 5 μm, the surface of the fabric may become flat and the wiping property may be impaired. When the single fiber diameter is larger than 30 μm, the fabric has high rigidity, and there is a risk of scratching the surface of the object to be wiped. 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, as described above.

  In the polyester multifilament yarn B, the number of filaments is not particularly limited, but is preferably in the range of 10 to 150 (preferably 30 to 150). The total fineness (the product of the single fiber fineness and the number of filaments) of the polyester multifilament yarn B is preferably in the range of 30 to 110 dtex. The fiber form of the polyester multifilament yarn B is preferably a long fiber (multifilament yarn). 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.

  Preferred examples of the polymer that forms the polyester multifilament yarn B include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, polyester obtained by copolymerization of the third component, and the like. 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. 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.

  Next, it is important that the polyester multifilament yarn D has a single fiber diameter in the range of 8 to 20 μm (preferably 10 to 15 μm). If the single fiber diameter is smaller than 8 μm, the rigidity of the fabric becomes small and handling at the time of wiping may be difficult. If the single fiber diameter is larger than 20 μm, the surface of the fabric may become flat and the wiping property may be impaired, and the rigidity of the fabric may increase, and the surface of the object to be wiped may be scratched. 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, as described above.

  In the polyester multifilament yarn D, the number of filaments is not particularly limited, but is preferably in the range of 10 to 300 (preferably 30 to 150). The total fineness of the polyester multifilament yarn D (the product of the single fiber fineness and the number of filaments) is preferably in the range of 30 to 220 dtex. The fiber form of the polyester multifilament yarn D is preferably a long fiber (multifilament yarn). 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.

  Preferred examples of the polymer that forms the polyester multifilament yarn D include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, polyester obtained by copolymerization of the third component, and the like. 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. 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 woven fabric for wiping of the present invention, the polyester multifilament yarn A and the polyester multifilament yarn B are arranged as a composite yarn C only on one of the warp and weft of the fabric, and on the other side, the polyester multifilament The yarn D is preferably arranged. When the composite yarn C is arranged on both the warp and the weft of the woven fabric, the surface of the woven fabric becomes flat, and the frictional resistance with the object becomes too high at the time of wiping, so that the wiping property may be lowered.

  Here, the composite yarn C is composed of the polyester multifilament yarn A and the polyester multifilament yarn B, and examples of the composite method include interlaced air processing, alignment false twist crimp processing, covering processing, and the like. However, interlaced air processing is preferable in forming a clear core-sheath structure.

  In the woven fabric for wiping of the present invention, the ratio DA / DB between the yarn length DA of the polyester multifilament yarn A and the yarn length DB of the polyester multifilament yarn B contained in the composite yarn C is 1.05 or more (preferably 1 .1 to 1.4) is important. If the ratio DA / DB is less than 1.05, the surface of the fabric may become flat and the wiping property may be impaired. On the other hand, if the ratio DA / DB is larger than 1.4, the processability when weaving or knitting may be deteriorated.

  In the woven fabric for wiping of the present invention, it is important that the composite yarn C is a woven fabric including a floating structure having two or more floats as a warp float component and / or a weft float component. That is, the above-mentioned composite yarn C is used as a warp and / or weft float component to form a floating structure having two or more floats on the entire fabric or locally. Here, examples of the floating structure include structures such as satin, jacquard, dobby, twill, day / night weaving, and double weaving.

  In this way, when the composite yarn C is present as a floating component on the surface of the fabric, the floating ratio (area ratio) of the composite yarn C is 45 to 95 in one complete structure or floating pattern portion of the fabric. % (Preferably 50 to 90%). When the floating ratio is 45% or less, the wiping property is lowered. On the other hand, when the floating ratio exceeds 95%, the number of intersections between the warp and the weft constituting the woven fabric is extremely reduced, and the number of sites for collecting the wiped dust is reduced. Oil and fat may be caught under the fiber again, and the removal function may be inferior.

  Next, the number of yarn floats will be described. The number of floats is the “exceeded number” when the number of warp yarns exceeds the number of weft yarns and intersects with the weft yarns. For example, in terms of the number of warp floats, the number of floats is 1 for a 1/1 plain woven fabric, 2 for 2/2 twills, 3 for 3/2 twills, and 4 for satin 4/1. It is. Further, the number of weft floats is 3 for a 2/3 twill and 4 for a 1/4 satin structure.

  The wiping fabric of the present invention can be produced by the following production method. That is, for the polyester multifilament yarn A, a sea-island type composite fiber in which the island component is made of polyester and the island component has a diameter of 50 to 1500 nm is used. A filament yarn is used to form a composite yarn C, while a polyester multifilament yarn having a single fiber diameter of 5 to 20 μm is used for the polyester multifilament yarn D. The above-mentioned woven fabric for wiping can be produced by dissolving and removing with an aqueous alkaline solution.

  Here, in the above-mentioned sea-island type composite fiber, the polymer constituting the fiber is arbitrary as long as the sea component polymer is a combination having higher solubility than the island component polymer. In particular, the dissolution rate ratio (sea / island) Is preferably 200 or more. When the dissolution rate ratio is less than 200, part of the island component of the fiber cross-section surface layer portion is dissolved while the sea component of the fiber cross-section central portion is dissolved, so the sea component is completely dissolved and removed. For this reason, the island component is reduced by a percentage, and strength deterioration due to the thickness variation of the island component and solvent erosion occurs, and problems such as fluff and pilling are likely to occur.

  The sea component polymer may be any polymer as long as the dissolution rate ratio with respect to the island component is 200 or more, but polyesters, polyamides, polystyrenes, polyethylenes, and the like having good fiber forming properties are particularly preferable. 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. Nylon 6 is soluble in formic acid, and polystyrene and polyethylene are very well soluble in organic solvents such as toluene. Among them, in order to achieve both easy alkali solubility and sea-island cross-section formability, the polyester-based polymer is 3 to 10% by weight of polyethylene glycol having 6 to 12 mol% of 5-sodium sulfoisophthalic acid and a molecular weight of 4000 to 12000. % Copolymerized polyethylene terephthalate copolymer polyester having an intrinsic viscosity of 0.4 to 0.6 is preferred. Here, 5-sodium isophthalic acid contributes to improving hydrophilicity and melt viscosity, and polyethylene glycol (PEG) improves hydrophilicity. PEG has a higher hydrophilicity effect, which is thought to be due to its higher order structure, as the molecular weight increases, but it is preferable from the viewpoints of heat resistance and spinning stability because the reactivity becomes poor and a blend system is formed. Disappear. On the other hand, when the copolymerization amount is 10% by weight or more, it is difficult to achieve the object of the present invention because of its inherently low melt viscosity. Therefore, it is preferable to copolymerize both components within the above range.

  On the other hand, the island component polymer may be any polyester polymer as long as there is a difference in dissolution rate from the sea component, but as described above, fiber-forming polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, Polyester such as polyester copolymerized with the third component is preferred. 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-island type composite fiber of the present invention comprising the sea component polymer and the island component polymer, the melt viscosity of the sea component during melt spinning is preferably larger than the melt viscosity of the island component polymer. In such a relationship, even if the composite weight ratio of the sea component is less than 40%, the islands are joined together, or the majority of the island components are joined to be different from the sea-island type composite fiber. hard.

  A preferred melt viscosity ratio (sea / island) is in the range of 1.1 to 2.0, especially 1.3 to 1.5. If this ratio is less than 1.1 times, the island components are likely to be joined during melt spinning, whereas if it exceeds 2.0 times, the viscosity difference is too large and the spinning tone tends to be lowered.

  Next, the larger the number of islands, the higher the productivity when manufacturing and manufacturing ultrafine fibers by dissolving and removing sea components, and the fineness of the resulting ultrafine fibers becomes remarkable, forming fine grooves in the object to be polished. Therefore, it is preferably 100 or more (more preferably 300 to 1000). If the number of islands is too large, not only the manufacturing cost of the spinneret increases, but also the processing accuracy itself tends to decrease.

  Next, the diameter of the island component needs to be in the range of 50 to 1500 nm. Further, each island in the cross section of the sea-island composite fiber is more preferable as the diameter thereof is uniform because the quality and durability of a woven fabric made of ultrafine multifilament yarn obtained by removing sea components is improved.

  In the sea-island composite fiber, 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. Within such a range, the thickness of the sea component between the islands can be reduced, the sea component can be easily dissolved and removed, and the conversion of the island component into ultrafine fibers is facilitated. Here, when the proportion of the sea component exceeds 40%, the thickness of the sea component becomes too thick. On the other hand, when the proportion is less than 5%, the amount of the sea component becomes too small, and joining between the islands easily occurs.

  In the above-mentioned sea-island type composite fiber, the thickness of the sea component between the islands is suitably 500 nm or less, particularly in the range of 20 to 200 nm. When the thickness exceeds 500 nm, the thick sea component is dissolved and removed. As the dissolution of the components progresses, not only the homogeneity between the island components decreases, but defects and dyeing spots such as fuzz and pilling are likely to occur.

  The sea-island type composite fiber can be easily produced, for example, by the following method. That is, first, a polymer having a high melt viscosity and an easily soluble polymer and a polymer having a low melt viscosity and a hardly soluble polymer are melt-spun so that the former is a sea component and the latter is an island component. Here, the relationship between the melt viscosity of the sea component and the island component is important. When the sea component ratio decreases and the thickness between the islands decreases, when the melt viscosity of the sea component is small, some flow paths between the islands This is not preferable because sea components flow at high speed and joining between islands easily occurs.

  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. For example, any spinneret that forms a cross section of the sea island by joining the island component extruded from the hollow pin or the fine hole and the sea component flow designed to fill the gap between the sea component flow may be used. . 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.

  The discharged sea-island type cross-section 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.

  Here, in order to produce a sea-island type composite fiber having a particularly fine island diameter with high efficiency, the fiber structure is not changed prior to neck stretching (orientation crystallization stretching) with ordinary so-called orientation crystallization. It is preferable to employ a fluid stretching process in which only the diameter is extremely reduced. In order to facilitate fluid drawing, it is preferable to preheat the fiber uniformly using an aqueous medium having a large heat capacity and draw at a low speed. By doing so, it becomes easy to form a fluid state at the time of stretching, and it can be easily stretched without development of the fine structure of the fiber. In this process, both the sea component and the island component are preferably polymers having a glass transition temperature of 100 ° C. or less, and particularly suitable for polyesters such as polyethylene terephthalate, polybutylene terephthalate, polylactic acid, and polytrimethylene terephthalate. Specifically, it is immersed in a hot water bath in the range of 60 to 100 ° C., preferably 60 to 80 ° C., and uniformly heated, the draw ratio is 10 to 30 times, the supply speed is 1 to 10 m / min, and the winding speed is It is preferable to carry out in the range of 300 m / min or less, particularly 10 to 300 m / min. If the preheating temperature is insufficient and the stretching speed is too high, the desired high-magnification stretching cannot be achieved.

  The drawn yarn drawn in the fluidized state is oriented, crystallized and drawn at a temperature of 60 to 220 ° C. in accordance with a conventional method in order to improve mechanical properties such as the strength and elongation. If the drawing conditions are outside this range, the properties of the resulting fiber will be insufficient. The draw ratio varies depending on the melt spinning conditions, flow stretching conditions, orientation crystallization stretching conditions, etc., but is 0.6 to 0.95 times the maximum draw ratio that can be stretched under the orientation crystallization stretching conditions. What is necessary is just to extend | stretch.

  The sea island type composite fiber described above and the polyester multifilament yarn B are used as a composite yarn C. On the other hand, the polyester multifilament yarn D is used to weave a woven fabric, and then the sea component is mixed with an alkaline aqueous solution. The textile fabric of the present invention is obtained by dissolving and removing with. Various processes such as a dyeing process and a hydrophilic process may be additionally applied before and / or after the sea component dissolution and removal process using the alkaline aqueous solution.

  The fabric thus obtained exhibits excellent wiping properties due to the effect of the polyester multifilament yarn A, which is an ultrafine fiber contained in the composite yarn C, and the effect of the uneven structure on the fabric surface. At that time, the coefficient of friction of the fabric surface measured with a KES texture measuring instrument is in the range of 0.5 to 0.9, and the surface roughness of the fabric is excellent in the range of 0.5 to 3.5 μm. The wiping property is preferable.

  Next, a wiping product of the present invention includes a mobile phone, glasses, a lens, a liquid crystal material, a large-scale integrated circuit, an electronic information material, an electronic device, a pharmaceutical, a medical instrument, a pearl, which uses the wiping fabric. A wiping product used in any application selected from the group consisting of jewelry, furniture, and auto parts. Such wiping products are extremely excellent in wiping and dust collection. The shape of the wiping product is not particularly limited, and may be any of a wiping cloth, a wiping tape, a mascot-shaped mobile strap, and the like.

  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.

<Unifilament Diameter and Uniformity of Fiber Diameter> Measurement was performed by photographing a cross section of the fiber with a transmission electron microscope (TEM). The average value obtained by measuring with n number of 5 was determined, and the maximum value and the minimum value of the width were smaller than 50% of the average value.

<Friction coefficient and surface roughness> The friction coefficient and the surface roughness were measured according to a surface property measuring method using a KES texture measuring instrument.

<Measurement of yarn length> A composite yarn is taken out from the woven fabric and cut into a length of 30 cm (n number = 5). Subsequently, the polyester multifilament yarn A and the polyester multifilament yarn B are taken out one by one, a load of 1.76 mN / dtex (200 mg / de) is applied, and the yarn length DA (mm) of the polyester multifilament yarn A, polyester multi The yarn length DB (mm) of the filament yarn B was measured, and (average value of yarn length DA) / (average value of yarn length DB) was defined as DA / DB.

<Wiping performance> A fixed amount of artificial dirt (carbon black, beef tallow extremely hardened oil and liquid paraffin hexane dilution) was dropped onto a glass plate, and air-dried at room temperature for 1 hour or more to attach spot-like dirt. Thereafter, the glass plate was wiped with a wiping cloth at a pressing load of 5 g / cm 2 and a wiping speed of 10 cm / min. Sensory evaluation was performed on the glass plate after wiping by five monitors. The monitor evaluated the state when looking at the glass plate according to the following criteria, and those with 15 points or more were judged as “◯”, and those with 15 points or less were judged as “x”.
5 points: The glass plate is not very dirty and very clean.
4 points: The glass plate is clean and not felt dirty.
3 points: The glass plate may be dirty, but it is clean.
2 points: Slightly dirty so that the glass plate is assumed to be dirty.
1 point: The glass plate is so dirty that it can be sure that the glass plate would have been dirty.

[Example 1]
Using polyethylene terephthalate as the island component, polyethylene terephthalate copolymerized with 9% by mole of 5-sodium sulfoisophthalic acid and 3% by weight of polyethylene glycol having a number average molecular weight of 4000 as the sea component, sea: island = 30: 70, number of islands = 836 The sea-island type composite undrawn fiber was melt-spun at a spinning temperature of 280 ° C. and a spinning speed of 1500 m / min, and was wound up once. The obtained undrawn yarn was subjected to roller drawing at a drawing temperature of 80 ° C. and a draw ratio of 2.5 times, and then heat-set at 150 ° C. to wind up to obtain a polyester multifilament yarn A yarn. 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. Also, as the polyester multifilament yarn B, a multifilament yarn 33 dtex / 12fil made of highly heat-shrinkable isophthalic acid copolymerized polyethylene terephthalate is prepared. The polyester multifilament yarn A (two) and the polyester multifilament yarn B (one) ) To obtain a composite yarn C by interlace processing.

  On the other hand, as the polyester multifilament yarn D, a multifilament yarn 84dtex / 72fil made of polyethylene terephthalate is twisted at 300 times / m (Z direction), the whole amount is arranged in the warp, and the composite yarn C is 300 times / m ( In the Z direction), the entire amount is arranged in the weft, and a satin structure (composite of 4/1) by a normal weaving method at a weave density of warp density of 220 / 2.54 cm and weft density of 150 / 2.54 cm. A woven fabric machine with 4 yarns of yarn C) was obtained.

Next, the fabric was subjected to wet heat treatment at 50 ° C., and then a 13.2% reduction (alkaline reduction) was performed at 55 ° C. with a 2.5% NaOH aqueous solution in order to remove sea components of the sea-island type composite drawn yarn. . Thereafter, conventional wet heat processing and dry heat processing were performed.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 15% with respect to the average fiber diameter. The single fiber diameter of the polyester multifilament yarn B was 16 μm. DA / DB was 1.15. The single fiber diameter of the polyester multifilament yarn D was 10.5 μm. Further, on the surface of the fabric, the coefficient of friction was 0.72, and the surface roughness was 0.94 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “◯”.

[Example 2]
After obtaining a sea-island type composite drawn yarn 56 dtex / 10 fil (polyester multifilament yarn A) in the same manner as in Example 1, similarly, the multifilament yarn 33 dtex / consisting of the two yarns and highly heat-shrinkable isophthalic acid copolymerized polyethylene terephthalate was used. A composite yarn C with 12 fil (single fiber diameter 16 μm, polyester multifilament yarn B) was obtained.
Thereafter, as in Example 1, a polyester multifilament yarn D was twisted at 300 times / m (Z direction) with a multifilament yarn 84 dtex / 72 fil (single fiber diameter: 10.5 μm) made of polyethylene terephthalate. The composite yarn C is twisted at 300 turns / m (Z direction), and the entire amount is arranged in the weft, and the weave density is 150 warps / 2.54 cm, and the weft density is 131 threads / 2.54 cm. A woven fabric machine having a 2/2 twill structure (two floating yarns of the composite yarn C) was obtained by a normal weaving method.

Next, after wet-heat treating the woven fabric at 50 ° C. in the same manner as in Example 1, in order to remove the sea component of the sea-island type composite drawn yarn, 15.8% at 55 ° C. with 2.5% NaOH aqueous solution Reduced weight (alkali weight loss). Thereafter, conventional wet heat processing and dry heat processing were performed in the same manner as in Example 1.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 29% with respect to the average fiber diameter. The single fiber diameter of the polyester multifilament yarn B was 16 μm. DA / DB was 1.10. The single fiber diameter of the polyester multifilament yarn D was 10.5 μm. Further, on the surface of the fabric, the coefficient of friction was 0.55, and the surface roughness was 1.68 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “◯”.

[Comparative Example 1]
After obtaining a sea-island type composite drawn yarn 56 dtex / 10 fil (polyester multifilament yarn A) in the same manner as in Example 1, similarly, the multifilament yarn 33 dtex / consisting of the two yarns and highly heat-shrinkable isophthalic acid copolymerized polyethylene terephthalate was used. A composite yarn C with 12 fil (polyester multifilament yarn B) was obtained.
Thereafter, in the same manner as in Example 1, as the polyester multifilament yarn D, a multifilament yarn 84dtex / 72fil made of polyethylene terephthalate was twisted at 300 times / m (Z direction), and all the warp yarns were arranged. Is twisted at 300 times / m (Z direction), and all of the wefts are arranged, and at a weave density of warp density of 156 / 2.54 cm and weft density of 105 / 2.54 cm, a plain structure is obtained by a normal weaving method. A woven fabric machine was obtained.

Next, the fabric was wet-heat treated at 50 ° C. in the same manner as in Example 1, and then 14.9% at 55 ° C. with a 2.5% NaOH aqueous solution in order to remove sea components of the sea-island type composite drawn yarn. Reduced weight (alkali weight loss). Thereafter, conventional wet heat processing and dry heat processing were performed in the same manner as in Example 1.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 23% with respect to the average fiber diameter. DA / DB was 1.06. The single fiber diameter of the polyester multifilament yarn B was 16 μm. The single fiber diameter of the polyester multifilament yarn D was 10.5 μm. The friction coefficient on the fabric surface was 0.45, and the surface roughness was 3.62 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “x”.

[Comparative Example 2]
After obtaining a sea-island type composite drawn yarn 56 dtex / 10 fil (polyester multifilament yarn A) in the same manner as in Example 1, similarly, a multifilament yarn 56 dtex / 24 fil (single fiber diameter 14) comprising the two yarns and ordinary polyethylene terephthalate. A composite yarn C with .8 μm polyester multifilament yarn B) was obtained.
Thereafter, in the same manner as in Example 1, as the polyester multifilament yarn D, a multifilament yarn 84dtex / 72fil made of polyethylene terephthalate was twisted at 300 times / m (Z direction), and all the warp yarns were arranged. Is twisted at 300 times / m (Z direction), and all of the wefts are arranged, and at a weaving density of warp density of 200 / 2.54 cm and weft density of 138 / 2.54 cm, 4 / A woven fabric machine having a satin structure of 1 (four floating yarns of the composite yarn C) was obtained.

Next, the fabric was wet-heat treated at 50 ° C. in the same manner as in Example 1, and then 12.2% at 55 ° C. with a 2.5% NaOH aqueous solution in order to remove the sea component of the sea-island type composite drawn yarn Reduced weight (alkali weight loss). Thereafter, conventional wet heat processing and dry heat processing were performed in the same manner as in Example 1.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 23% with respect to the average fiber diameter. The single fiber diameter of the polyester multifilament yarn B was 14.8 μm. DA / DB was 1.02. The single fiber diameter of the polyester multifilament yarn D was 10.5 μm. Further, on the surface of the fabric, the friction coefficient was 0.52, and the surface roughness was 0.63 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “x”.

[Comparative Example 3]
After obtaining a sea-island type composite drawn yarn 56 dtex / 10 fil (polyester multifilament yarn A) in the same manner as in Example 1, similarly, the multifilament yarn 33 dtex / consisting of the two yarns and highly heat-shrinkable isophthalic acid copolymerized polyethylene terephthalate was used. A composite yarn C with 12 fil (polyester multifilament yarn B) was obtained.
Thereafter, in the same manner as in Example 1, as the polyester multifilament yarn D, a multifilament yarn 84 dtex / 15 file made of polyethylene terephthalate was twisted at 300 times / m (Z direction), and all the warp yarns were arranged. Is twisted at 300 times / m (Z direction), and the entire amount is arranged in the weft, and the weave density is 220 / 2.54 cm, and the weave density is 150 / 2.54 cm. A satin-textured fabric machine of 1 was obtained.

Next, the fabric was wet-heated at 50 ° C., and then reduced by 13.9% (alkali reduction) at 55 ° C. with a 2.5% NaOH aqueous solution in order to remove the sea component of the sea-island type composite drawn yarn. . Thereafter, conventional wet heat processing and dry heat processing were performed.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 13% with respect to the average fiber diameter. The single fiber diameter of the polyester multifilament yarn B was 16 μm. DA / DB was 1.15. The single fiber diameter of the polyester multifilament yarn D was 22.8 μm. Further, on the fabric surface, the friction coefficient was 0.67, and the surface roughness was 0.45 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “x”, and minute scratches were observed on the glass plate.

[Comparative Example 4]
After obtaining a sea-island type composite drawn yarn 56 dtex / 10 fil (polyester multifilament yarn A) in the same manner as in Example 1, similarly, the multifilament yarn 33 dtex / consisting of the two yarns and highly heat-shrinkable isophthalic acid copolymerized polyethylene terephthalate was used. A composite yarn C with 12 fil (polyester multifilament yarn B) was obtained. The yarn is twisted at 300 times / m (Z direction), and all the warp and weft yarns are arranged, and the normal weaving is performed at a weaving density of warp density 170 / 2.54 cm, weft density 150 / 2.54 cm. According to the method, a 4/1 satin texture fabric was obtained.

Next, the fabric was wet-heated at 50 ° C., and then 25.5% reduction (alkali reduction) was performed at 55 ° C. with a 2.5% NaOH aqueous solution in order to remove sea components of the sea-island type composite drawn yarn. . Thereafter, conventional wet heat processing and dry heat processing were performed.
In the obtained woven fabric, the average fiber diameter of the polyester multifilament yarn A was 700 nm, and the width between the maximum value and the minimum value was 30% with respect to the average fiber diameter. The single fiber diameter of the polyester multifilament yarn B was 16 μm. The DA / DB was 1.12. Further, on the fabric surface, the friction coefficient was 0.97, and the surface roughness was 0.41 μm. A wiping cloth was obtained using the obtained woven fabric, and a wiping test was performed. The wiping performance was “x”.

  ADVANTAGE OF THE INVENTION According to this invention, the textile fabric for wiping which is extremely excellent in wiping off and dust collection property, its manufacturing method, and a wiping product are provided, The industrial value is very large.

Claims (6)

  A woven fabric for wiping, wherein a composite yarn C including a polyester multifilament yarn A having a single fiber diameter of 50 to 1500 nm and a polyester multifilament yarn B having a single fiber diameter of 5 to 30 μm is either a warp or a weft of the fabric. A polyester multifilament yarn D having a single fiber diameter of 8 to 20 μm is arranged on one side, and the yarn length DA of the polyester multifilament yarn A and the polyester multifilament yarn are arranged on the composite yarn C. The ratio DA / DB of B to the yarn length DB is 1.05 or more, and the composite yarn C includes a floating structure whose number of floats is 2 or more as a warp float component and / or a weft float component. A wiping fabric characterized by   The wiping fabric according to claim 1, wherein the filament yarn A has 1000 or more filaments.   The woven fabric for wiping according to claim 1 or 2, wherein the filament yarn A is a yarn obtained by dissolving and removing a sea component of a sea-island composite fiber composed of a sea component and an island component.   The woven fabric for wiping according to any one of claims 1 to 3, wherein in the polyester multifilament yarn B, the number of filaments is 10 to 150 and the total fineness is in the range of 30 to 110 dtex.   The woven fabric for wiping according to any one of claims 1 to 4, wherein in the polyester multifilament yarn D, the number of filaments is 10 to 300 and the total fineness is in the range of 30 to 220 dtex.   A mobile phone, glasses, a lens, a liquid crystal material, a large-scale integrated circuit, an electronic information material, an electronic device, a pharmaceutical, a medical instrument, a pearl, comprising the wiping fabric according to any one of claims 1 to 5. A wiping product used for any application selected from the group consisting of jewelry, furniture, and auto parts.