JPH1088412A - Polyester outer wear product and production thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject polyester outer wear which can easily make color matching in normal pressure dyeing and gives soft and good touch. SOLUTION: This outer wear contains more than 30wt.% of a copolymerized polyester containing an acid component and/or diol and dyed with a dispersion dye and/or a cationic dye. As a copolymerization components, for example, 1-10mol% of sodium isophthaloylsufonate, polyethylene glycol or adipic acid are used to give good dyeability under normal pressure. Since the polyester fabric is piece-dyed at 85-100 deg.C under normal pressure, the color tone is rich and the fabric hand is soft. The products are suitably used as slacks, skirts, jackets and other outer wears.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester outer garment product dyed at normal pressure and a method for producing the same. More particularly, the present invention relates to a polyester outer garment product which is dyed at normal pressure and has a soft color rich in color change and a method for producing the same.

[0002]

2. Description of the Related Art Product dyeing can provide color matching and natural color unevenness that are difficult to fabric dye, and can provide clothing with a wide variety of colors. Conventionally, dyed products tend to shrink due to washing, and there has been a problem in the dimensional stability of cotton products such as jeans products. In addition, the finished product had a poor texture, such as being difficult to express the intended clear or light color and tending to impair an elegant texture rich in drape. Especially for products sewn using ordinary polyester, high-pressure dyeing is required, so it is difficult to match colors,
There were many points to be improved, such as shrinkage during dyeing, resulting in insufficient dimensional stability, tending to have a hard feel, and difficulty in decoloring to change the color.

[0003]

DISCLOSURE OF THE INVENTION The present invention makes it possible to easily dye a product under normal pressure, to match a desired color even if it is a vivid color or a light color, and to obtain a soft texture and a drape that makes use of the drape property of clothes. An object of the present invention is to provide a polyester outer garment product having excellent dimensional stability to washing, and a method for producing the same.

[0004]

According to the present invention, in order to solve the above-mentioned problems, at least a copolymer-based polyester fiber spun from a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate is used. Characterized in that it contains 30% by weight and is dyed with a disperse dye and / or a cationic dye.
Provide polyester outerwear products.

[0005] By co-polymerizing at least one of sodium sulfoisophthalic acid, polyethylene glycol and adipic acid with polyethylene terephthalate as the above-mentioned copolymerized polyester, it is easy to dye under normal pressure, and fiber strength and dyeing fastness are obtained. It is possible to spin a copolymerized polyester fiber having excellent properties. Further, if the acid component and / or diol in the copolymerized polyester is copolymerized with polyethylene terephthalate in an amount of 1 to 10 mol, it is suitable for normal pressure dyeing.

The conditions for dyeing the polyester outer garment product are preferably a dyeing temperature of 85 to 100 ° C. and normal pressure. A product that is rich in color change and makes use of the drape property of the fabric can be expected. A polyester outer garment product partially decolorized and finished with a dye decomposer and / or friction means can impart natural color unevenness and is suitable for jeans products and the like.

Further, it contains at least 30% by weight of a copolymerized polyester fiber spun from a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate in an amount of 1 to 10 moles, A jeans-like outer garment product partially decolorized by friction means has excellent dimensional stability and a soft feel.

Further, the present invention is to spin a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate to produce a fabric containing at least 30% by weight of the obtained copolymerized polyester fiber. The present invention provides a method for producing a polyester outer garment product, which is sewn to an outer garment using the obtained fabric and then dyed with a disperse dye and / or a cationic dye to finish.

In the present invention, the outer garment refers to outer garments of textiles for clothing, for example, pants such as slacks and bottoms; skirts such as culotte skirts, flare skirts, tight skirts and gather skirts; blousons, jumpers, etc. Jackets such as sweaters and cardigans; coats; shirts; blouses; and overalls.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A polyester outer garment product, a jeans-like outer garment product (hereinafter collectively referred to as a polyester outer garment product) and a method for producing a polyester outer garment product according to the present invention will be described in detail. The polyester outer garment product of the present invention is sewn from a fabric containing 30% or more of the copolymerized polyester fiber and dyed.

The copolymerized polyester fiber is a fiber obtained by spinning a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate. As the acid component, for example, sulfonic acid, sodium sulfonic acid, sulfuric acid, sulfate,
Dicarboxylic acids such as diethyl sulfate, ethyl sulfate, aliphatic sulfonic acid, ethanesulfonic acid, chlorobenzenesulfonic acid, alicyclic sulfonic acid, isophthalic acid, sebacic acid, azelaic acid, dimer acid, adipic acid, oxalic acid, and decane dicarboxylic acid P-hydroxybenzoic acid;
and hydroxycarboxylic acids such as ε-caprolactone. As the diol, for example, triethylene glycol, polyethylene glycol, propanediol,
Butanediol, pentanediol, hydroquinone,
Bisphenol A is mentioned. Above all, polyethylene glycol or adipic acid is used as the disperse dye dyeable polyester, and sodium sulfoisophthalic acid (5-sodium sulfoisophthalic acid or 4-sodium sulfoisophthalic acid) is used as the cationic dye dyeable polyester. When it is a polymerization component, it is easy to dye at normal pressure,
It is preferable from the viewpoints of fiber strength, crimpability of false twisted yarn, alkali resistance, dyeing fastness and the like. The acid component and the diol may be appropriately combined and copolymerized. For example, in the homopolymerization of sodium sulfoisophthalic acid, the yarn strength tends to decrease. Therefore, it is preferable to reduce the amount of the sodium sulfoisophthalic acid component and to copolymerize with a polyethylene glycol component.

The total copolymerization amount of the acid component and / or the diol is 1 to 10 mol based on polyethylene terephthalate. If the amount is less than 1 mol, the dyeability under normal pressure tends to decrease, while if it is 10 mol or more, the crimpability and the original yarn strength of the false twisted yarn tend to decrease. It is preferable to appropriately control the copolymerization amount of the acid component and / or the diol. When the drawing speed of the drawn yarn is less than 2000 m / min, the range is 2 to 8 mol, more preferably 3 to 6 mol. In the case of 2,000 m / min or more, the dyeing becomes easy, so that the copolymerization amount is reduced and adjusted to the range of 2 to 5 mol,
Dyeability under normal pressure tends to be further improved.

The copolymerized polyester fiber is used in an amount of 30% by weight or more based on the fabric, and a fiber of 100% by weight is particularly preferable because excellent color developability can be expected. Further, in the case where the expression of color is enhanced by different dyeing in which different hues are dyed with various dyes corresponding to various materials, the above-described disperse dye dyeable type and cationic dye dyeable type copolymer polyester fiber are interwoven. It is preferable to use it after mixing or blending. When expressing heather dyeing or shading difference, a copolymer polyester fiber within the above content range and a normal homopolymer polyester fiber having a low dyeing amount may be combined by interweaving or blending. Furthermore, for the purpose of enhancing dyeing properties and functionality,
The copolymerized polyester fiber having the content in the above range and a different material such as cotton, wool, rayon, acetate, and polyurethane can be appropriately combined by weaving, blending, blending, or the like.

[0014] Product dyeing is preferably carried out under normal pressure at 100 ° C or lower. Dyeing is easy, and dimensional changes such as product shrinkage in the dyeing process can be reduced. Among these, the dyeing temperature is suitably in the range of 85 to 100 ° C., and it is desirable to set the copolymerization component and the copolymerization amount of the copolymerized polyester fiber so that the dyeing can be performed well in the above temperature range.

The disperse dye and cationic dye used in the present invention are not particularly limited, and those commercially available can be used. As the disperse dye, for example, Diani
x (manufactured by Dystar), Sumikaron (manufactured by Sumitomo Chemical Co., Ltd.), Miketon (Mitsui High Pressure Chemical Co., Ltd.)
), Paranil (manufactured by DuPont), Kaya
lon (manufactured by Nippon Chemical Co., Ltd.), Resoline (manufactured by Bayer AG) and the like can be used. Examples of the cationic dye include Cathilon (Hodogaya Chemical Co., Ltd.)
Kayacryl (manufactured by Nippon Chemical Co., Ltd.), Dia
cryl (manufactured by Dystar Co., Ltd.) and the like. Products containing cotton may be used in combination with direct dyes and reactive dyes, and products containing nylon, wool and silk may be used in combination with acid dyes.

The type of fabric used for sewing the polyester outer garment product of the present invention is not particularly limited, such as woven fabric, knitted fabric, and non-woven fabric. However, woven fabric and knitted fabric are preferable because the size and form of the finished product are hard to change. Among them, satin fabric, twill fabric,
Products using plain fabrics such as broad and poplin have excellent form stability. Further, the satin fabric is suitable for applications requiring gloss.

In the method for producing a polyester outer garment product of the present invention, the above-mentioned copolymer polyester raw yarn is spun and subjected to yarn processing such as false twisting by a commonly used method. In addition, when seeking a thin fabric or a cloth with a strong gloss,
It is preferable to use the original yarn as it is without performing false twisting. Next, a fabric is manufactured using the obtained processed yarn and the like, and scouring is performed by a generally used method. In the case of a fabric using a false twisted yarn, scouring while relaxing at 90 to 98 ° C. is preferable because crimping can be sufficiently developed. Thereafter, it is set at 160 to 190 ° C. to give form stability and soft feeling in the subsequent dyeing process. After the set fabric is sewn on the outer garment, dyeing is performed using a normal dyeing machine such as a rotary washer of a normal pressure type dyeing machine or a paddle dyeing machine. A rotary washer is preferably used when a strong impact is applied to enhance the color effect on the surface.

Further, the polyester outer garment product of the present invention comprises:
After dyeing the product or in the dyeing process, the color may be partially whitish and faded. It can impart a color change and natural unevenness to the surface and is suitable for jeans-like outer clothing products. Specifically, after dyeing, the dyed product is decomposed with a reducing agent such as hydrosulfite or a bleaching agent such as sillbrite or hydrogen peroxide. As a method for partially fading the product, a method in which the above-mentioned decomposing agent is non-uniformly charged into a dyeing machine or a method in which the temperature is rapidly raised to cause non-uniform decomposition can be used. Further, it is also preferable to use a friction means, for example, a method in which a solid material such as a grindstone or abrasive grains is charged into a dyeing machine after dyeing or in a dyeing step, and physical friction is applied to rub the fiber surface unevenly.
An artificial grindstone made of alumina or silicon carbide is preferably used because it can be stably processed. The grain number used is # 8
0 to # 1000, size is 10 to 50 mmφ, shape is polygonal shape such as round, triangular or octagon, number is 20 to 400
An individual piece is preferable because mild friction can be produced without damaging the fabric, and is suitable for so-called cotton stone wash processing.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The polyester outer garment product of the present invention and a method for producing the same will be described in detail. The evaluation methods used in the examples and comparative examples are as follows. Using a color difference meter (Color Computer SM-3; manufactured by Suga Test Instruments Co., Ltd.), the brightness of the finished fabric (L value (%))
Was measured. The smaller the value is, the deeper the color is, and the better the color developability is. Shrinkage during dyeing Shrinkage (%) was measured before and after dyeing in the warp and weft directions. The smaller the value, the smaller the dimensional change. Stretchability The recovery rate (%) of the finished fabric is measured according to JIS-L109.
6 was measured. The larger the value, the higher the stretchability. Friction fastness The dry fastness and wet friction fastness of the finished product are measured according to JIS-L
Based on 0849, evaluation was made in five grades from grade 5 (good) to grade 1 (poor). Anti-pilling property The anti-pilling property of the finished product was evaluated in five grades from grade 5 (good) to grade 1 (poor) according to JIS-L1076. Hand feeling The hand feeling of the finished product was evaluated on a five-point scale based on the tactile sensations of five panelists. ；: Extremely good ○: Excellent △; Normal ×; Poor XX; Extremely poor Washing shrinkage
It was measured in accordance with the 2A method. The smaller the shrinkage ratio, the smaller the dimensional change.

Example 1 (1) Production of polyester-processed yarn 100 parts of dimethyl terephthalate, 80 parts of ethylene glycol, 0.3 parts of antioxidant Irganox-1010 (manufactured by Ciba-Geigy), dimethylpolysiloxane (Toshiba (Silicone Co., Ltd. silicone oil) 0.01
, A mixture of 0.04 part of cobalt acetate and 0.04 part of antimony trioxide was heated to 130 to 230 ° C., methanol was distilled out, and a transesterification reaction was carried out. Then, 0.8 part of polyethylene glycol having an average molecular weight of 1,000 was added. The mixture was added and reacted at 230 ° C. for 30 minutes. Thereafter, 0.03 parts of trimethyl phosphate was added, and 5 minutes later, 0.05 parts of titanium dioxide was added as a 20% by weight ethylene glycol slurry to obtain a low polymer. The obtained low polymer was further gradually heated from 230 ° C. to 280 ° C., and was gradually decompressed from atmospheric pressure to a high vacuum of 1 mmHg or less to undergo polycondensation, and had an intrinsic viscosity of 0.703 and a softening point of 257 ° C. A modified polyethylene terephthalate (hereinafter referred to as modified PET) was obtained. The copolymerization ratio of polyethylene glycol having an average molecular weight of 1,000 in the obtained modified PET was 4.5 mol.

The modified PET was dried for 5 hours while maintaining the atmosphere temperature in the dryer at 150 ° C. and a reduced pressure of 1 mmHg or less to produce a dry chip. The obtained dried chips were spun at a spinning temperature of 290 ° C. and a spinning speed of 13 using a die having 48 holes.
Spinning was performed at 50 m / min. Subsequently, a hot roller temperature of 80 ° C., a hot plate temperature of 165 ° C., a draw ratio of 3.37 times,
Stretching at a stretching speed of 800 m / min, 150 denier,
A drawn filament of 48 filaments was obtained. The obtained drawn yarn is
Strength 4.8g / denier, elongation 41%, boiling water shrinkage 1
1%. The drawn yarn was subjected to false twisting to impart bulkiness, thereby producing a false twisted yarn. The processing conditions were as follows: hot plate temperature: 205 ° C., number of false twists: 2,530 times / m, false twist direction: S, feed rate: 2.0%, fineness: 151.1 denier, strength: 4.0 g / denier, elongation: 28.3% A single yarn false twisted yarn (I) having a boiling water shrinkage of 5.3% was obtained. Furthermore, a false twisted yarn (II) was formed into a twin yarn during winding of the false twisting process. Yarn properties of false twisted yarn (II) are fineness 3
06.2 denier, strength 4.0 g / denier, elongation 3
1.0% and boiling water shrinkage ratio were 4.7%.

(2) Fabric production Using false twisted yarn (I) for warp and false twisted yarn (II) for weft, weaving width 171 cm, warp density 1
A satin woven fabric of 37 yarns / inch and a weft yarn density of 62 yarns / inch was woven. Next, using a jet dyeing machine, relaxation scouring was performed at 120 ° C., and drying was performed. After performing dry heat setting at 180 ° C. using a pin tenter, sewing was performed on slacks. Cotton thread was used for the sewing thread of the product, and the fastener used was a cotton base cloth.

(3) Dyeing and Finishing The slacks were dyed black with a disperse dye using a rotary washer under the following conditions under normal pressure. Dye; Dianix Black BG-FS (200% product, manufactured by Dystar Co., Ltd.) Staining density: 7% owf Staining aid; Nikka San Salt # 2100 (manufactured by Nissaku Chemical Industry Co., Ltd.) Staining aid concentration: 0 5 g / liter Dye bath pH; 6 Dye bath ratio; 1/30 Dyeing temperature × time; 98 ° C. × 45 minutes After dyeing, washed with water, reduced and washed under the following conditions, washed with water, air-dried, and finished. . Reduction cleaning agent: Hydrosulfide 2 g / liter Caustic soda 2 g / liter Reduction cleaning temperature: 80 ° C. Reduction cleaning time: 20 minutes Reduction cleaning bath ratio: 1/30 The warp yarn density of the finished product is 176 yarns / inch, and the weft yarn density is 70. Book / inch. The finished product was evaluated and the results are shown in Table 1. The resulting slacks have excellent color development and softness, are glossy,
The black slacks had a high-grade feel with stable dimensions and shape.

Example 2 Slacks were sewn in the same manner as in Example 1 except that the false twisted yarn (II) was used for the warp and the weft, and the picket fabric (b) was woven. Weave width of picket fabric is 176c
m, warp density: 107 yarns / inch, weft density: 54
Book / inch. The sewn slacks were dyed black in the same manner as in Example 1, washed with water, reduced and washed, washed with water, air-dried, and finished. The finished product had a warp yarn density of 132 yarns / inch and a weft yarn density of 63 yarns / inch. The finished product was evaluated and the results are shown in Table 1. The obtained slacks were high-quality slacks having a clear color, moderate stiffness and softness, and excellent dimensional and morphological stability.

Example 3 Copolymerization of 5-sodium sulfoisophthalic acid was carried out in the same manner as in Example 1 except that 5-sodium sulfoisophthalic acid was copolymerized with polyethylene terephthalate instead of polyethylene glycol as the copolymerized polyester. A modified PET having a rate of 5.2 mol was produced, spinning, drawing, and false twisting were performed to produce a double-thread polyester processed yarn. The fineness of the obtained processed yarn was 301.6 denier, the strength was 3.8 g / denier, the elongation was 26.2%, and the boiling water shrinkage was 4.8%. The above false twisted yarn is used for warp and weft yarn, and the fabric width is 172 cm and the warp yarn density is 1
A Chino cloth woven fabric having a weft density of 05 yarns / inch and a weft yarn density of 56 yarns / inch was woven. Next, scouring and dry heat setting were performed in the same manner as in Example 1 to sew a blouson. The sewn blouson is 98 ° C under normal pressure using a rotary washer.
Dye (Cathilon Blue) for 60 minutes
5G-DP; Hodogaya Chemical Co., Ltd .; 1.0% owf)
, And soaped and finished in a conventional manner. The warp yarn density of the finished product is 126 yarns / inch and the weft yarn density is 6
7 lines / inch. The finished product was evaluated and the results are shown in Table 1. The resulting blouson was a high-quality jeans-like blouson having a deep color and a soft feel, rich in stretchability.

Example 4 The slacks obtained in Example 1 were combined with a dye-decomposing agent (hydrosulfite 1% solution) and an alumina grindstone (particle size: # 4).
00, shape; sphere, size; 30 mmφ, number: 120
) And subjected to decoloring treatment at 90 ° C. for 30 minutes to finish. The resulting slacks were partially bleached and were black and gray slacks with a natural uneven feeling.

Example 5 The same 300-denier copolymerized polyester fiber as used in Example 1 was used for the warp yarn, the 30th cotton yarn was used for the weft yarn, and the mixing ratio of the copolymerized polyester was 62.9% by weight. Woven twill fabric and sewn it on women's skirt. Then, using a red disperse dye and a navy blue direct dye together,
Dyeing was carried out at 96 degrees under normal pressure for 60 minutes to finish. The resulting skirt had a rich iridescent color and high color fastness, had no shrinkage during dyeing, and had a good hand.

Comparative Example 1 Single- and double-twisted false twisted yarns were produced in the same manner as in Example 1 except that a polyester homopolymer was used for the production of the textured yarn. The fabric was woven. Next, the slacks were sewn, and the dyeing temperature was 130 ° C.
Other than that, the slacks were dyed and finished in the same manner as in Example 1. Table 1 shows the results of evaluating the obtained slacks. The obtained slacks showed large shrinkage during dyeing and washing, and were inferior in dimensional stability. In addition, the slacks had low anti-pilling properties and hard feeling.

Comparative Example 2 A twin-twisted false-twisted yarn was produced in the same manner as in Example 1 except that a false-twisted yarn was produced using a polyester homopolymer. The fabric was woven. Next, the slacks were sewn, and the slacks were dyed in the same manner as in Example 1 except that the dyeing temperature was 130 ° C.
Finish processing was performed. Table 1 shows the results of evaluating the obtained slacks. The resulting slacks shrink during dyeing and washing, resulting in poor dimensional and morphological stability,
The slacks were prone to pilling.

Comparative Example 3 A chinos cloth was woven and sewn into a blouson in the same manner as in Example 3, except that a spun cotton spun yarn of 30th yarn was used. Subsequently, the reactive dye (Diamira Blue R-
KN: 1.0% owf manufactured by Dystar Co., Ltd.)
Finished. The obtained blouson was evaluated and the results are shown in Table 1. The blouson had large shrinkage during dyeing and washing, and had no even color.

[0031]

[Table 1]

[0032]

According to the present invention, the product can be easily dyed under normal pressure, and the desired color such as a clear color or a light color which does not easily shrink at the dyeing stage can be expressed on the polyester outer coat. In addition, it is possible to provide a polyester outer garment product that is rich in soft feeling utilizing the drape property of clothes, dimensional stability for washing, and easy care.
Changes such as natural unevenness and fuzziness unique to product dyeing can be easily applied to the clothing surface, and jeans-like slacks,
It is suitable for outer garments such as skirts and jackets.

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Claims (7)

[Claims] A product containing at least 30% by weight of a copolymerized polyester fiber spun from a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate, and comprising a disperse dye and / or a cationic dye. A polyester outer garment product characterized by being dyed. 2. The polyester according to claim 1, wherein the copolymerized polyester is obtained by copolymerizing at least one of sodium sulfoisophthalic acid, polyethylene glycol and adipic acid with polyethylene terephthalate. Outer clothing products. 3. An acid component and / or a diol in the copolyester is one to one based on polyethylene terephthalate.
2. The copolymer of claim 1, wherein the copolymer is copolymerized.
Or the polyester outer garment product according to 2. 4. The product is dyed at a dyeing temperature of 85 to 100 ° C. and at normal pressure.
Or the polyester outer garment product of 3. 5. The polyester outer garment product according to claim 1, wherein the polyester outer garment product is partially decolored and finished with a dye decomposer and / or friction means. 6. A polyester dispersant containing at least 30% by weight of a copolymerized polyester fiber spun from a copolymerized polyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate in an amount of 1 to 10 mol. A jeans-like outer garment product, which is partially bleached and / or finished by friction means. 7. A spinning copolyester obtained by copolymerizing an acid component and / or a diol with polyethylene terephthalate to produce a fabric containing at least 30% by weight of the obtained copolymerized polyester fiber. A method for producing a polyester outer garment product, which is sewn to the outer garment and then dyed and finished with a disperse dye and / or a cationic dye.