JPH11181626A - Antistatic polyester fiber and lining fabric using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject fiber having characteristics of both a nylon fiber and a polyester fiber and capable of providing a lining fabric having a soft and pliant touch feeling by forming a specific polyester which is substantially a polymethylene terephthalate into a fiber. SOLUTION: This polyester fiber is obtained by forming a polyester substantially composed of a polymethylene terephthalate and containing (A) a polyethylene glycol having 4,000-500,000 average molecular weight in an amount of 0.5-5 wt.% based on an acid component constituting the polymethylene terephthalate, (B) a compound represented by the formula; R-SO3 M (R is an 8-20C alkyl; M is an alkali metal) and (C) a compound represented by the formula (R' is an 8-20C alkyl; M' is an alkali metal) in the total amount of the components B and C of 1.5-5 wt.% based on the acid component constituting the polymethylene terephthalate (the amount of the component C is <=1 wt.% in the case of the component C alone) into a fiber. The resultant polyester fiber has 85-115 deg.C peak temperature of the loss tangent and 0.18-0.35 ratio (Q/R) of the elastic modulus Q (g/d) of the fiber to the elastic recovery ratio R (%) thereof and is excellent in low elastic modulus, high elastic recovery ratio, antistatic properties, low-temperature dyeability, heat-setting properties and light resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic polyester fiber and a polyester lining using the same. More specifically, it has both the characteristics of a nylon fiber and a polyester fiber, and is excellent in low elastic modulus, high elastic recovery property, heat setting property, light resistance, and at least 11
The present invention relates to a polyester fiber having both low-temperature dyeability and antistatic properties that can be dyed at 0 ° C., and a polyester lining using the same.

[0002]

2. Description of the Related Art Nylon fibers are widely used in the field of clothing and materials by utilizing their low elastic modulus, high elastic recovery, antistatic properties, and low-temperature dyeability. In the garment field, it is widely used in women's innerwear and pantyhose fields where strong softness is required by taking advantage of its characteristics of antistatic properties and low elastic modulus, for example, mixed with stretch fibers represented by polyurethane fibers. ing. In the field of materials, nylon fibers are used for carpets, fishing nets, canvas, etc. because of their excellent elastic recovery and resistance to bending and friction.

[0003] Further, with respect to the problem of post-processing properties, since nylon fibers are dyeable at low temperatures, for example, when nylon fibers and cellulose fibers are mixed, heat resistance is low for dyeing the cellulose fibers. Using a reactive dye and combining it with an acid dye, one-step one-bath dyeing at normal pressure can be performed. Also, wool, silk, polyurethane fiber,
At a dyeing temperature exceeding 110 ° C. such as acetate fiber, when mixed with a fiber which is susceptible to thermal deterioration, it has excellent processing characteristics that dyeing is possible without damaging the fiber.

As described above, nylon fibers have a low elastic modulus,
Although it has a large market among synthetic fibers by taking advantage of its characteristics of high elastic recovery, antistatic properties, and low-temperature dyeability, it also has the following serious problems. In other words, nylon fibers have poor heat setting properties.For example, knitted fabrics such as tricots and Russell mixed with stretch fibers are prone to so-called laughter when used for a long time, resulting in dimensional stability and form stability. A poor fabric results. In addition, there is also a problem that yellowing is apt to occur when used for a long period of time or exposed to excessive sunlight due to poor light resistance.

[0005] On the other hand, polyester fibers represented by polyethylene terephthalate fibers are excellent in heat setting property and weather resistance, but have a high elastic modulus, a hard feeling, a poor elastic recovery property, and a high temperature. It has the opposite performance to nylon fibers, such as the need for dyeing. In addition, when the polyester fiber alone is used because it has no antistatic property, or when the mixed ratio of the cellulose fiber is low even in the mixed fabric with the cellulosic fiber having the antistatic property, charging occurs, and it is particularly seen in winter. It gives discomfort such as a popping sound, pain at the time of discharging, and clinging to the body.

If a fiber having both characteristics of a nylon fiber and a polyester fiber and excellent in a low elastic modulus, a high elastic recovery property, an antistatic property, a low temperature dyeing property, a heat setting property and a light fastness is provided. Although the above-mentioned problems of nylon fibers can be solved and a fabric having a soft feel and excellent heat setting properties and antistatic properties can be provided, such fibers have not been known so far. Examples of the fiber having a good dyeing property with respect to a disperse dye, a low elastic modulus, and an excellent elastic recovery property include, for example, a polytrimethylene terephthalate fiber disclosed in JP-A-52-5320. . The fiber disclosed herein has a low elastic modulus comparable to nylon and has excellent elastic recovery, but does not have antistatic properties like polyethylene terephthalate fiber.

As the antistatic polyethylene terephthalate fiber, a method of mixing and mixing polyalkylene glycol and sodium alkylbenzene sulfonate (Japanese Patent Publication No. 47-11280), mixing and mixing polyalkylene glycol and sodium alkyl sulfonate is used. A known method (Japanese Patent Application Laid-Open No. 53-149246) is known. However, the fiber thus obtained has a low modulus,
It does not have properties such as high elastic recovery and low temperature dyeability.

Further, as a method of using an antistatic agent other than polyalkylene glycol, polyester fibers using block alkylene ether amide as an antistatic agent (for example, Japanese Patent Publication No. 44-16178, Japanese Patent Publication No. 46-72)
No. 13, JP-A-61-28016), a technique of dispersing a block alkylene ether amide or a block polyalkylene ether ester in polyester (for example, JP-B-48-10380, JP-A-50-280)
However, none of them has a low elastic modulus comparable to that of nylon and cannot provide a fiber having an excellent elastic recovery rate. Also, the dyeability at low temperatures is not sufficient.

Further, a method of copolymerizing polyoxyalkylene glycol with polybutylene terephthalate or polytrimethylene terephthalate for the purpose of obtaining a polyester elastomer is already known (for example, Japanese Patent Application Laid-Open No.
-6796). However, in this invention, there is no description about a specific fiberizing method or a polymer using trimethylene glycol. Furthermore, since it is intended to be an elastomer, the molecular weight, copolymerization ratio, and form of the polyalkylene glycol are not appropriate and exhibit little antistatic properties. In addition, even if it is made into a fiber, it has strength, light fastness, and dry cleaning fastness. Or the spinnability is not sufficient and the yield is reduced, and the application is remarkably limited because it is difficult to make fine denier.

As described above, in the range of the prior art, low elastic modulus, high elastic recovery property, antistatic property, low-temperature dyeability, heat setting property having both characteristics of nylon fiber and polyester fiber. There is no known fiber having excellent light resistance. -The lining made of polyester fiber represented by polyethylene terephthalate fiber is excellent in form stability, heat setting property, washing durability, shochu chemical property, mechanical strength and inexpensive. Widely used. However, in recent years, the dress material used for clothes has been affected by fashion trends that emphasize the comfort silhouette of clothes,
Soft and flexible fabrics have become mainstream, and soft and flexible products that do not impair the comfort and silhouette of the lining have been demanded and commercialized.

[0011] As a means for making a woven fabric made of polyethylene terephthalate fiber having a high modulus of elasticity soft and flexible, a method is employed in which the fiber is extinguished by using a high-temperature caustic soda solution during dyeing and finishing. ,
There is a problem that the cost is increased due to the addition of the processing step, resulting in an expensive product. -The lining made of nylon fiber with low elastic modulus is soft and flexible lining, but after sewing the clothes, the seam can be broken or creased, and the wrinkles generated during handling during sewing can be stretched. Because of the poor heat setting property of the finishing iron when performing and the low melting point, there is a problem of handling that many sheets are fused when cutting parts, and it is not used as a general-purpose lining Is coming.
In other words, there is a demand in the market for an inexpensive lining that is soft and supple, and the lining does not cling due to static electricity generated by friction with stockings and shirts when worn. There is a need for a lining that can prevent darkening of shirts.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a low elastic modulus, a high elastic recovery property, an antistatic property, a low temperature dyeability, and a heat setting property, which have both characteristics of a nylon fiber and a polyester fiber. Another object of the present invention is to provide an inexpensive lining having excellent light resistance and a soft and supple texture using the same and having excellent antistatic properties.

[0013]

Means for Solving the Problems As a result of intensive studies, the present inventors mixed polytrimethylene terephthalate with a specific antistatic agent, and studied the spinning conditions to details. The present invention has been reached. That is, the first aspect of the present invention is that it is substantially composed of polytrimethylene terephthalate, and (a) an average molecular weight of 400 with respect to an acid component constituting the polytrimethylene terephthalate.
It contains polyethylene glycol of 0 to 500,000, (b) a compound represented by the structural formula (x), and (c) a compound represented by the structural formula (y), and its content is represented by the following formula (1):
A polyester fiber blended so as to satisfy (3), wherein the peak temperature of the loss tangent is from 85 ° C to 115 ° C.
And a relation between the elastic modulus Q (g / d) and the elastic recovery rate R (%) of the fiber satisfies the following formula (4).

0.5% by weight ≦ (a) content ≦ 5% by weight (1) 1.5% by weight ≦ Total content of (b) and (c) ≦ 5% by weight (2) Content of (b) ≦ 1% by weight (3) 0.18 ≦ Q / R ≦ 0.35 (4)

[0015]

Embedded image (Here, R and R 'are alkyl groups having 8 to 20 carbon atoms, and M and M' are alkali metals.) In the second aspect of the present invention, the warp and / or the weft are described in claim 1. A woven fabric composed of an antistatic polyester fiber having a frictional voltage of 2 according to JIS-L-1094, Method B.
It is a polyester lining characterized by being 000 V or less.

Hereinafter, the present invention will be described in detail. The polymer constituting the polyester fiber of the present invention is polytrimethylene terephthalate obtained by substantially polycondensing terephthalic acid and 1,3-propanediol. In the present invention, substantially means that it may be a polytrimethylene terephthalate homopolymer or a polytrimethylene terephthalate copolymer shown below. That is, as long as the effects of the present invention are not impaired, isophthalic acid, succinic acid, adipic acid, 2,6-naphthalenedicarboxylic acid, 5-sodium sulfoisophthalic acid and 5
Acid components such as tetrabutylphosphonium sulfoisophthalate, glycol components such as 1,4-butanediol, 1,6-hexanediol and cyclohexanedimethanol, ε-caprolactone, 4-hydroxybenzoic acid,
One or more of polyoxyethylene glycol and polytetramethylene glycol may be copolymerized in an amount of less than 10 wt%.

If necessary, various additives such as a matting agent, a heat stabilizer, an antifoaming agent, a tinting agent, a flame retardant, an antioxidant, an ultraviolet absorber, an infrared absorber, and a crystal nucleus. Agents, optical brighteners and the like may be copolymerized or mixed. The intrinsic viscosity [η] of the polymer used in the present invention is preferably from 0.4 to 1.5, and more preferably from 0.7 to 1.2. Within this range, a fiber having excellent strength and spinnability can be obtained. When the intrinsic viscosity is less than 0.4, it is difficult to develop strength because the molecular weight of the polymer is too low. Conversely, if the intrinsic viscosity exceeds 1.5, the melt viscosity is too high, and melt fracture or poor spinning occurs during spinning, which is not preferable.

The average molecular weight of the polyethylene glycol used in the present invention is from 4,000 to 500,000, more preferably from 10,000 to 30,000. Those having an average molecular weight of less than 4000 have insufficient antistatic properties,
If it exceeds 0000, coloring of the fiber and reduction in spinnability occur. The content of polyethylene glycol is 0.5 to 5 with respect to the acid component constituting polytrimethylene terephthalate.
% By weight, preferably from 2 to 4.5% by weight. If the amount is less than 0.5% by weight, antistatic properties are not exhibited, and if it exceeds 5% by weight, strength, fastness and light resistance are reduced.

The compounds represented by the structural formulas (x) and (y) used in the present invention are indispensable substances for improving antistatic properties. In these compounds, R and R 'are alkyl groups having 8 to 20 carbon atoms, and M and M' are alkali metals. R and R 'may be the same or different, and may be linear or branched. When the number of carbon atoms is smaller than 8, there is a drawback that the fibers easily come out of the fiber by washing or the like. In addition, carbon number is 2
Those exceeding 0 are expensive and difficult to obtain from an industrial point of view, and also have the drawback that foams are likely to be formed due to those flowing out during dyeing. M and M ′ may be the same or different, and for example, L
i, Na, K and the like. The total content of the compound represented by the structural formula (x) and the compound represented by the structural formula (y) is 1.5 to 5% by weight with respect to the acid component constituting polytrimethylene terephthalate. 4.5% by weight is preferred. If it is less than 1.5% by weight, the antistatic property is low, and if it exceeds 5% by weight, bubbles are generated at the time of dyeing, causing staining spots.
Spinnability and strength decrease.

Here, in order to enhance antistatic properties, the compound represented by the structural formula (y) should be contained in an amount of 1% by weight or less (0 to 1% by weight) with respect to the acid component constituting polytrimethylene terephthalate. Is preferred. Of course, there is no problem if it is not contained, but by using 0.5 to 1% by weight, the antistatic property is further enhanced. If it exceeds 1% by weight, coloring becomes intense, and the rate of increase of the pack pressure is increased, resulting in a decrease in spinnability.

These antistatic agents (polyethylene glycol,
The dispersion state of the compounds represented by the structural formulas (x) and (y)) in the fiber will be described. The antistatic polyester fiber of the present invention does not have a sheath-core structure containing a so-called antistatic agent in the core of the fiber, and the antistatic agent is uniformly distributed in the fiber from the surface to the inside of the fiber. However, it may be finely distributed in a micro manner. Among them, polyethylene glycol may be oriented in the fiber axis direction and distributed in a streak shape.

As a method for producing polytrimethylene terephthalate used in the present invention, a known method can be used as it is. That is, using terephthalic acid or dimethyl terephthalate and trimethylene glycol as raw materials, titanium tetrabutoxide, titanium tetraisopropoxide,
One or two of metal salts such as calcium acetate, magnesium acetate, zinc acetate, cobalt acetate, and manganese acetate
More than 0.03 to 0.1 wt% of the seed is added, and bishydroxypropyl terephthalate is obtained at a transesterification rate of 90 to 98% under normal pressure or pressure, and then titanium tetraisopropoxide, titanium tetrabutoxide, antimony trioxide, etc. One or two or more of the catalyst
0.15 wt%, preferably 0.03-0.1 wt% is added, and the polycondensation reaction is carried out under reduced pressure at 250-270 ° C.
At any stage of the polymerization, it is preferable to add a stabilizer before the polycondensation reaction, from the viewpoint of improving whiteness and controlling the production of organic substances having a molecular weight of 300 or less such as polytrimethylene terephthalate oligomer, acrolein, and allyl alcohol. preferable. In this case, the stabilizer is preferably a pentavalent or / and trivalent phosphorus compound or a hindered phenol compound.

Examples of the pentavalent and / or trivalent phosphorus compound include trimethyl phosphate, triethyl phosphate, tributyl phosphate, triphenyl phosphate, trimethyl phosphite, triethyl phosphite, tributyl phosphite, triphenyl phosphite, phosphoric acid, and phosphorous acid. Phosphoric acid and the like are mentioned, and trimethyl phosphite is particularly preferable. The hindered phenolic compound is a phenolic derivative having a substituent having steric hindrance at a position adjacent to the phenolic hydroxyl group, and is a compound having one or more ester bonds in the molecule.

Specifically, pentaerythritol-tetrakis [3 (3,5-di-tertbutyl-4-hydroxyphenyl) propionate], 1,1,3-tris (2
-Methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,5-trimethyl-2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene, , 9-Bis {2- [3- (3-tert
-Butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1-dimethylethyl} -2,
4,8,10-tetraoxaspiro [5,5] undecane, 1,3,5-tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzene) isophthalic acid, triethylglycol-bis [3 (3-tert-butyl-5
-Methyl-4-hydroxyphenyl) propionate], 1,6-hexanediol-bis [3- (3,5
-Di-tert-butyl-4-hydroxyphenyl) propionate], 2,2-thio-diethylene-bis [3
(3,5-di-tertbutyl-4-hydroxyphenyl)
Propionate], octadecyl-3- (3,5-di-
tert-butyl-4-hydroxyphenyl) propionate] and the like. Above all, pentaerythritol-
Tetrakis [3 (3,5-di-tertbutyl-4-hydroxyphenyl) propionate] is preferred.

Here, a method of mixing polyethylene glycol, the compounds represented by the structural formulas (x) and (y) with polytrimethylene terephthalate is described below.
There is no particular limitation, and they may be mixed simultaneously or separately.
That is, there is a method of mixing the polymer at the polymerization stage of the polymer, for example, before, during, or after the transesterification reaction, or during or after the polycondensation reaction. Further, the powder, chips, etc. of polytrimethylene terephthalate and the additives used in the present invention may be mixed in an extruder. As a result of mixing, polyethylene glycol may be either copolymerized with a polymer or simply dispersed, but is preferably copolymerized from the viewpoint of durability against washing. In this case, the hydroxyl groups at both ends may be reacted, or only one hydroxyl group may be reacted.

In the antistatic polyester of the present invention, the peak temperature of the loss tangent (hereinafter abbreviated as “Tmax”) determined from the dynamic viscoelasticity measurement needs to be 85 to 115 ° C. This is because at least the dyeability at 110 ° C. and the fastness can be secured in this range. Tm
Since ax corresponds to the molecular density of the amorphous portion, the smaller this value is, the smaller the molecular density of the amorphous portion is. Will be higher. If the Tmax is less than 85 ° C., the molecules tend to move at a low temperature, so that the physical properties and texture will change at the stage of ordinary use represented by heat setting, typically post-processing such as ironing,
Alternatively, the dry cleaning fastness of the fabric after dyeing is deteriorated. On the other hand, if the Tmax exceeds 115 ° C., the dyeability deteriorates, and at 110 ° C. or less, it becomes impossible to dye to a deep color with a disperse dye.

As described above, since Tmax is a structural factor of a fiber, even a polymer having the same copolymer composition has a different value depending on spinning conditions such as spinning temperature, spinning speed, draw ratio, and heat treatment temperature. Things. The rate of change of Tmax when these conditions are changed needs to be examined while examining the relationship between these conditions and Tmax. In the case of the present invention, when the temperature exceeds 115 ° C, the effect of improving the dyeability is small, and the dyeability at 110 ° C is not exhibited. However, this is not necessarily the case as low as possible, and the amorphous portion becomes too coarse, so that it has a drawback that the dye can easily enter and at the same time easily escape. That is, robustness,
The fastness to dry cleaning, the fastness to wet friction, the fastness to washing, etc. are reduced. In addition, problems such as deterioration of texture due to curing during heat setting and decrease in dimensional stability arise.

Further, the elastic modulus Q (g / d) of the antistatic polyester fiber of the present invention and the elastic recovery rate R (%) after 20% elongation and left for 1 minute satisfy expression (4). It is necessary. 0.18 ≦ Q / R ≦ 0.35 Expression (4) If Q / R> 0.35, is the elasticity too high, so that a soft feel comparable to nylon aimed at in the present invention cannot be obtained? Alternatively, the elastic recovery properties are insufficient, and the fibers once deformed by the application of stress cannot return to the original state, and only a fabric having poor form stability can be obtained. vice versa,
Since there is substantially no region where Q / R <0.18, the lower limit of Q / R is set to 0.18 in the present invention. The specific elastic modulus that can be in the range of the equation (4) is usually 2
0-40 g / d, and the elastic recovery rate is 70-99.
%.

As a method for obtaining the antistatic polyester fiber of the present invention, a molten multifilament extruded from a spinneret is passed through a heat retaining region, cooled to a solid multifilament, wound up, and then drawn. Can be obtained. Here, performing stretching after winding means that after spinning, winding is performed on a bobbin or the like, and the yarn is stretched using another device. After cooling and solidifying, it is wrapped several times around the first roll rotating at a constant speed, so that the tension before and after the roll is not transmitted at all, and installed next to the first roll and the first roll It refers to a so-called straight drawing method in which a spinning-drawing process is directly connected, such as drawing with a certain second roll. Further, as another spinning method, at least 5500 m / mi after the molten multifilament extruded from the spinneret is passed through the heat retaining region.
and a method of winding with n. Although this method has the advantages of improving productivity and omitting the drawing step, it has the disadvantage that the strength of the obtained fiber is reduced. Therefore, as a method for obtaining the antistatic polyester fiber of the present invention, the above-mentioned ordinary method or straight-drawing method is preferable.

Hereinafter, an example of the melt spinning will be described by taking the ordinary method as an example. The spinning temperature is 230-320 ° C, preferably 235-320 ° C.
A range of 300 ° C, more preferably 240 to 280 ° C, is suitable. If the spinning temperature is lower than 230 ° C., the temperature is too low and it is difficult to obtain a stable molten state, the resulting fiber has large irregularities, and does not exhibit satisfactory strength and elongation.
On the other hand, when the spinning temperature exceeds 320 ° C., thermal decomposition becomes severe, and the obtained yarn is colored and does not show satisfactory strength and elongation. Insulation area just below the spinneret is 30 ~ 200 ℃
It is preferable that the temperature range is 2 to 80 cm. By using the heat retaining region, the sublimated cyclic dimer can be prevented from being deposited around the spinneret, and the spinnability can be improved. Preferred temperature is 5
0-150 ° C, preferred length is 5-30 cm.

The winding speed of the yarn is not particularly limited, but is usually 3500 m / min or less, preferably 10 m / min or less.
Wind up at 00-3000 m / min. Winding speed is 35
When it exceeds 00 m / min, crystallization proceeds too much before winding, and the stretching ratio cannot be increased in the stretching process, so that the molecules cannot be oriented, and sufficient yarn strength and elastic recovery rate can be obtained. The bobbin or the like may not be able to be pulled out of the winding machine due to the inability to tighten or the winding. The stretching ratio at the time of stretching is 2 to 4 times, preferably 2.2 to 2 times.
3.7 times, more preferably 2.5 to 3.5 times.
If the stretching ratio is less than or equal to 2, the polymer cannot be sufficiently oriented by stretching, and the strength of the obtained yarn will be low. On the other hand, if it is four times or more, thread breakage is severe and stretching cannot be performed stably.

The temperature at the time of stretching is 30 to 8 in the stretching zone.
0 ° C, preferably 35-70 ° C, more preferably 40 ° C
~ 65 ° C is good. If the temperature of the drawing zone is lower than 30 ° C., yarn breakage frequently occurs during drawing, and continuous fibers cannot be obtained. On the other hand, when the temperature exceeds 80 ° C., the slipperiness of the fiber with respect to a heating zone such as a drawing roll deteriorates, so that single yarn breakage occurs frequently and the yarn becomes full of fluff. Further, it is necessary to perform a heat treatment (heat setting) immediately after the stretching. This heat treatment is 9
The temperature is 0 to 150 ° C, preferably 100 to 140 ° C. When the heat treatment temperature is lower than 90 ° C., the crystallization of the fiber does not sufficiently occur, and the physical properties change with time. Also, 150
At a temperature higher than ℃, fluff is generated. When the polymer used is polyethylene terephthalate, the physical properties change with time unless the heat treatment is at least 160 ° C. or higher. However, when the additives used in the present invention are mixed, coloring occurs at such a high temperature.
On the other hand, when polytrimethylene terephthalate is used, 9
Since heat setting is possible even at a low temperature of about 0 to 150 ° C., no change over time occurs.

Next, the lining of the present invention will be described in detail. The polyester lining of the present invention means a lining in which the polytrimethylene terephthalate fiber is contained in the fabric.
The lining used is not limited to 0%, but it is also limited to polyester fibers such as polyethylene terephthalate fiber and polybutylene terephthalate fiber, and interwoven lining with cellulose fiber such as copper ammonia rayon, viscose rayon, polynosic rayon, and acetate. Not something.

The polyester lining of the present invention is JIS-L
-1094.B method (frictional voltage measurement method, 20 ° C x 40%
The friction band voltage with the cotton cloth under RH environment is 2000V
Or less, more preferably 1000 V or less. At a friction band voltage exceeding 2,000 V, when sewn on a skirt and worn, in a humidity environment such as 20 ° C. × 40% RH, the lining clings to the feet and causes discomfort. The lower the triboelectric voltage is, the better.
If it is 000 V or less, there is no discomfort such as clinging to the feet when worn in a skirt.

In particular, from the viewpoint of the antistatic effect, the backing made of a yarn in which the warp or the weft is made of regenerated cellulose fiber and the other warp or the weft is made of the polytrimethylene terephthalate fiber of the present invention is made of a regenerated cellulose fiber. It shows excellent antistatic properties in combination with high hygroscopicity, and its frictional voltage is 3
00V or less is preferable. Since the lining of the present invention is composed of polytrimethylene terephthalate fiber having a small elastic modulus, the texture becomes soft and supple without any weight reduction processing, and the friction band voltage decreases even when dry cleaning or home washing is performed. It is an excellent antistatic effect that there is no.

The fineness of the warp and weft constituting the backing of the present invention is 30 to 150 denier, preferably 50 to 120 denier.
It is in the range of denier, and in the case of single yarn denier, it is in the range of 0.5 to 5 denier, preferably 1 to 3 denier. The braided structure of the lining of the present invention is not limited at all, and includes a flat structure, a twill structure, a satin structure, and the like. A flat structure is preferable for soft and flexible lining. The woven fabric density is 100 when the warp fineness is 50 to 100 denier.
In the case of 180 to 180 yarns / inch and the weft fineness of 50 to 120 denier, the range of 60 to 13 yarns / inch is preferable, but it may be determined according to the type of fiber constituting the lining and the kind of clothing used. The polyester lining dyeing process of the present invention is not different from the usual lining processing method using polyethylene terephthalate fiber, and is a general processing process, continuous scouring desizing-intermediate pre-setting-dyeing one finishing set. Become.

At the time of finishing setting, a function such as water repellency, water absorption, antifouling, antifungal, deodorizing, etc., or antistatic and flexible processing is applied for the purpose of further improving texture and antistatic. It doesn't matter. When the regenerated cellulose fiber is used for the warp or the weft, after dyeing the polytrimethylene terephthalate fiber of the present invention, or dyeing the regenerated cellulose fiber,
Further, a method of dyeing with the same bath as the polytrimeterene terephthalate fiber may be adopted. In this case, if necessary, the regenerated cellulose fiber may be subjected to resin processing at the time of finishing processing for the purpose of improving the washing shrinkage rate and wrinkle resistance.

[0038]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to Examples, but it is needless to say that the present invention is not limited at all by Examples. The main measured values in the examples were measured by the following methods. (1) Loss tangent Using a Leo vibron manufactured by Orientec Co., Ltd., in dry air, at a measurement frequency of 110 Hz, at a heating rate of 5 ° C./min.
The loss tangent (tan δ) at each temperature and the dynamic elastic modulus were measured. From the result, a loss tangent-temperature curve was obtained, and the peak temperature of the loss tangent, Tmax, was determined on this curve.
(° C.). .

(2) Exhaust rate of polyester-based composite fiber,
Measurement of Deep Color (K / S) (Evaluation of Dyeability) The sample is made of a single-knit knitted fabric of a polyester-based composite fiber, using hot water containing a score roll 400 at 2 g / liter.
After scouring at 70 ° C. for 20 minutes, drying with a tumbler drier, and then using a pin tenter at 180 ° C. for 30 minutes.
The heat set of second was used. The exhaustion rate is 40
After the temperature was raised from 110 ° C. to 110 ° C., the temperature was further maintained for 1 hour, and then evaluated by the exhaustion rate. The dye used was Kayaron Polyester Blue 3RSF (manufactured by Nippon Kayaku Co., Ltd.), and was 6% o.
Wf, dyeing at a bath ratio of 1:50. As a dispersant, 0.5 g / l of Nikka Sun Salt 7000 (manufactured by Nika Chemicals Co., Ltd.) was used, and the pH was adjusted to 5 by adding 0.25 ml / l of acetic acid and 1 g / l of sodium acetate.

The exhaustion rate was obtained by measuring the absorbance A of the stock dye solution and the absorbance a of the dye solution after dyeing using a spectrophotometer and substituting them into the following equation. The absorbance is 5 which is the maximum absorption wavelength of the dye.
The value at 80 nm was adopted. Exhaustion rate = (A−a) / A × 100 (%) The deep chromaticity, which indicates how deeply colored, was evaluated using K / S. This value is obtained by measuring the spectral reflectance R of the sample cloth after dyeing, and calculating the following Kubelka-Munk (Kub).
elka-Munk). The larger the value, the greater the deep color effect, that is, the better the color development. As R, the value at the maximum absorption wavelength of the dye was used. K / S = (1-R) ² / 2R

(3) Fastness to Dyeing The fastness to dry cleaning was determined according to JIS-L-0860. (4) Elastic recovery The elastic recovery was determined as an elastic recovery obtained by the following method. Attach the fiber to a tensile tester with a distance between chucks of 20 cm.
/ Min and let stand for 1 minute. Thereafter, it was returned to the original length (L) again at the same speed, and at this time, the moving distance (residual elongation: X ') of the chuck under a stress was read and determined according to the following equation. Elastic recovery rate = [(XX ′) / X] × 100 (5) Antistatic property The frictional band voltage was measured according to the method B of JIS-L-1094.

[0042]

Example 1 Dimethyl terephthalate and 1,3-propanediol were charged at a molar ratio of 1: 2, and titanium tetrabutoxide was charged at a ratio of 0.15% by weight based on dimethyl terephthalate. The temperature was gradually raised to 240 ° C., and the transesterification reaction was completed while distilling off methanol. Thereafter, polyethylene glycol, sodium dodecylsulfonate, and sodium dodecylbenzenesulfonate were added to dimethyl terephthalate in weight% shown in Table 1, and the same amount of titanium tetrabutoxide as above was added. The polycondensation reaction was performed for 3 hours under a vacuum of 0.2 torr. Thus, polytrimethylene terephthalate having an intrinsic viscosity of 0.8 was obtained.

The obtained polymer was dried by a conventional method, spun at a spinning temperature of 285 ° C., passed through a heat retaining region of 100 ° C. and 10 cm, and once unwound at a spinning speed of 1600 m / min. The film was stretched at 55 ° C. and a hot plate at 140 ° C. at a stretch ratio of 2.5 times.
The fiber properties obtained are shown in Table 1. The obtained fiber is
No yellowing was observed in a light fastness test in a fade meter at 3 ° C. for 30 hours. The thermal stress of the obtained fiber showed a high value of 4.5 g / d. The obtained fiber was a polyester fiber excellent in low elastic modulus, high elastic recovery property, low-temperature dyeability, heat setting property, light resistance, and antistatic property.

Table 2 shows a plain woven fabric having a warp density of 98 yarns / inch × a weft density of 80 yarns / inch using the obtained 50d / 36f fiber as a warp and 75d / 36f fiber as a weft. Using a continuous scouring machine under the conditions described, scouring, washing, neutralization,
Drying and presetting were performed. Subsequently, after dyeing under the conditions shown in Table 3, finishing treatment was performed under the conditions shown in Table 4 to obtain a lining product, and the friction electrostatic voltage after home washing was performed 5 times was measured. When the home was washed once, 35 liters of warm water of 40 ° C. ± 2 ° C. containing 2 g / liter of New Beads (manufactured by Kao Corporation) was put into a commercially available automatic reversing spiral electric washing machine, and the test cloth was washed. After that, the total weight of the bulking cloth is adjusted to be 1000 g, and then the washing is performed in the order of 5 minutes, dehydration 30 seconds, rinsing 2 minutes, dehydration 30 seconds, rinsing 2 minutes, and dehydration 30 sand. The rinsing is performed while overflowing.

At the same time, a skirt of size 9 for ladies was made and the above product was attached as a petticoat as a lining.
After walking for 1 minute in an environment of 0 ° C. × 40%, the cling to the lining foot was evaluated by actual wearing. Level 5: No clinging. Grade 4:-Clinging to partial legs but no discomfort. Grade 3: Slightly clinging, but without significant discomfort. 2nd grade: Feet quite clinging to feet. Grade 1: Extremely uncomfortable on the feet. Table 1 also shows the obtained results. The obtained lining of the present invention was a soft and supple lining that had a low frictional voltage and did not cling even when actually worn.

[0046]

Example 2 Example 1 was repeated, changing the composition to that shown in Table 1. The fiber properties obtained are shown in Table 1. The obtained fiber was a polyester fiber excellent in low elastic modulus, high elastic recovery property, low-temperature dyeability, heat setting property, light resistance, and antistatic property.

[0047]

Comparative Example 1 Example 1 was repeated using polyethylene terephthalate instead of polytrimethylene terephthalate. The fiber properties obtained are shown in Table 1. Although the antistatic property was good, it was inferior in soft texture, elastic recovery property and dyeability.

[0048]

Comparative Example 2 10% by weight of polyethylene glycol
Then, Example 1 was repeated. The strength of the obtained fiber was as low as 1.8 g / d, and the dry cleaning fastness was first class.

[0049]

Comparative Example 3 Example 1 was repeated without using sodium dodecylsulfonate and sodium dodecylbenzenesulfonate. The anti-friction voltage was 3500 V, and the antistatic property was low.

[0050]

Comparative Example 4 Sodium dodecylsulfonate and sodium dodecylbenzenesulfonate were used in an amount of 3% by weight, respectively.
Example 1 was repeated. The strength of the obtained fiber was 1.8.
g / d.

[0051]

Comparative Example 5 The fabric obtained in Example 1 after scouring, washing, neutralization, dry gland, and presetting was subjected to alkali weight loss processing (weight loss rate: 8%) under the conditions described in Wheat 5, and the following Example was carried out. Dyeing and finishing were performed under the same conditions as in Example 1 to obtain a lining product. This product was subjected to household washing five times, and the triboelectric voltage and the cling were evaluated in the same manner as in Example 1. The results are described below. Friction band voltage: 4500V Cling; Class 1-2 Both friction band voltage and cling resulted in significantly poor performance.

[0052]

Example 3 Using the polymer of Example 1, 1
Attach a 30 cm heat insulation tube heated to 50 ° C.
Winding at 0 m / min, strength 2.6 g / d, elongation 40
% Fiber was obtained. The withstand voltage of the obtained fiber was 1600.
V and good.

[0053]

[Table 1]

[0054]

[Table 2]

[0055]

[Table 3]

[0056]

[Table 4]

[0057]

The antistatic polyester fiber of the present invention has a soft feel derived from a low elastic modulus, a high elastic recovery property, and can be dyed at a temperature of 110 ° C. or less for disperse dyes, and has a good heat setting property. Polyester fiber characterized by having high antistatic properties. Therefore, it can be mixed with fibers that are difficult to dye at the dyeing temperature of ordinary polyethylene terephthalate-based fibers, and can exhibit a soft texture.
Furthermore, since it has high antistatic properties, even when the mixing rate of the polyester-based composite fiber of the present invention is high, clinging based on static electricity does not occur, and there is no problem such as electric discharge. Lining product with The polyester-based composite fiber of the present invention takes advantage of the above advantages, and can be mixed with cellulose fibers, from low to high uses, and can be used with natural fibers such as silk and wool, polyamide fibers, and polyurethane fibers. Particularly useful for blending with low fiber. Of course, advanced functions can be exhibited even when used alone.

Claims (2)

[Claims] 1. An acid component which is substantially composed of polytrimethylene terephthalate and which has (a) an average molecular weight of 4000 to 5
(B) a compound represented by the following structural formula (x), (c) a compound represented by the following structural formula (y), the content of which is represented by the following formulas (1) to (c).
A polyester fiber blended so as to satisfy (3), wherein the peak temperature of the loss tangent is from 85 ° C to 115 ° C.
And a relation between an elastic modulus Q (g / d) and an elastic recovery rate R (%) of the fiber satisfies the following formula (4). 0.5% by weight ≦ (a) content ≦ 5% by weight (1) 1.5% by weight ≦ (b) and (c) total content ≦ 5% by weight (2) (B) content ≦ 1% by weight (3) 0.18 ≦ Q / R ≦ 0.35 (4) (Here, R and R 'are alkyl groups having 8 to 20 carbon atoms, and M and M' are alkali metals.) 2. A woven fabric comprising a warp yarn and / or a weft yarn made of the antistatic polyester fiber according to claim 1.
Friction band voltage of 2000V by SL-1094.B method
Polyester lining characterized by the following.