JP2008075196A - Method for producing water-repellent textile product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a water-repellent textile product having excellent water repellency and excellent appearance quality even in following textile products since there are problems of insufficient water-repellent performance, occurrence of water repellency unevenness and cleaning stain and poor appearance quality when textile products such as blouse, sweater, shirt, windbreaker, bag, sheet, table cloth and down jacket, skiwear, jacket, anorak, etc., including inner pad between yarn fabrics dyed after sewing are provided with water repellency. <P>SOLUTION: A method for producing a water-repellent textile product includes subjecting a fiber fabric to water-repellent treatment, sewing and then dyeing the fabric. Preferably the method for producing a water-repellent textile product includes including inner pad between fiber fabrics. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for producing a water-repellent textile product.

In order to impart water repellency to a textile product to be dyed, a water-repellent process is performed after the dyeing process is first performed (Example 1 of Patent Document 1).
The reason why the process is performed in such a process is that when the water-repellent treatment is performed and then the dyeing process is performed, the water-repellent agent is dropped from the surface of the fiber by the dyeing process, and the performance of the water-repellent processed product is deteriorated. In addition, because of its water-repellent performance, it was thought that the fiber product and the dyeing liquid were not well-suited and could not be dyed uniformly.

  In addition, the product dyeing process, in which fiber fabrics are dyed after being sewn on clothes or bags, is a technology that has been attracting attention in recent years because of its natural wrinkle feeling, soft texture, and swell feeling. After dyeing, if water repellent processing is performed using a spray or the like, the amount of water repellent attached is small, or sufficient heat treatment cannot be performed on the sewing product, so that durable water repellent processing cannot be performed. When the water repellent is sufficiently adhered so that the water repellent performance is exhibited, there is a problem that water repellent unevenness and stickiness are likely to occur, and the appearance quality is deteriorated.

In addition, if textile products that are sewn in a down jacket with a cotton pad between the outer and the lining are dyed, there is a problem that a large amount of the dyeing solution is contained in the cotton pad and the fabric becomes tight when dried. Was. In addition, down jackets with batting are generally made of woven tissue so that the batting of cotton, cotton, feathers, wool, polyester, etc. does not come out through the outer fabric or lining when worn or cleaned. In addition, fabrics with low air permeability are used. By using such fabrics, the dye solution cannot move sufficiently during dyeing, or the dye solution cannot be sufficiently dehydrated during dehydration after dyeing. There were also problems such as unevenness and tightness during drying.
Japanese Patent Laid-Open No. 10-245741

Therefore, the present invention provides a water-repellent fiber product that solves the above-mentioned problems and has excellent water repellency and excellent appearance quality even when the fiber product is dyed after sewing. It is aimed.
In particular, it is an object of the present invention to provide a water-repellent fiber product having uniform water repellency, which suppresses the occurrence of tightness, for a sewn product such as a down jacket containing batting.

  As a result of intensive studies to solve the above problems, the present inventors have completed the present invention. That is, the present invention comprises the following configurations (1) to (3).

(1) A method for producing a water-repellent fiber product, comprising performing a water-repellent treatment on a fiber fabric, sewing the fabric, and then performing a dyeing treatment.
(2) The method for producing a water-repellent fiber product as described in (1) above, wherein a batting is included between the fiber cloth and the fiber cloth.
(3) The method for producing a water-repellent fiber product according to (1) or (2) above, wherein the air permeability of the fiber fabric in the fragile method is 10 cm ³ / cm ² · s or less.

  The water-repellent fiber products such as blouses, sweaters, shirts, windbreakers, bags, sheets, tablecloths, down jackets, ski wears, jackets, anoraks, etc. of the present invention are natural fibers because they are dyed and processed after sewing. It has an excellent water repellency while having a good wrinkle feeling, a soft texture, and a swell feeling, and no deterioration in appearance quality due to uneven water repellency or the like is observed. In addition, the occurrence of tightness and the like can be suppressed on the surface and lining of a down jacket or the like having a batting between the fiber fabric and the fiber fabric, and a water-repellent fiber product with good appearance quality can be obtained.

The present invention is a method for producing a water-repellent fiber product, comprising performing a water-repellent treatment on a fiber fabric, sewing the fabric, and then performing a dyeing treatment.
Examples of the fiber fabric of the present invention include synthetic fibers such as polyester, nylon, acrylic and polyurethane, semi-synthetic fibers such as diacetate and triacetate, regenerated fibers such as rayon, and natural fibers such as cotton, wool, hemp and silk. The polyester may be regular polyester obtained from terephthalic acid and ethylene glycol, polytrimethylene terephthalate, polylactic acid, cationic dyeable polyester, and the like.
Further, a blend of these fibers, a blend, a woven, a knitted product may be used. From the viewpoint of water repellency, polyester or nylon is preferable.
The shape of the fiber fabric is not particularly limited, such as a woven fabric, a knitted fabric, or a non-woven fabric.
In addition, these fiber fabrics may be subjected to antibacterial and deodorant processing, antibacterial processing, flameproofing processing and the like as necessary.

In the case of a fiber product including batting between a fiber fabric and a fiber fabric, a high-density fabric is preferable, and the air permeability in the Frazier method is 10 cm ³ / cm ² · s or less, more preferably 2 cm ³ / cm ^2.・ S or less is good. When a fiber fabric with low air permeability is used, the dyeing solution of the fiber fabric is poor in liquidity, so that uneven dyeing and stickiness are likely to occur. However, in the production method of the present invention, a fiber fabric with low air permeability is used. Even if there is, we can suppress dyeing unevenness and wrinkle. The reason is not clear, but by performing the water-repellent treatment in the state of the fiber cloth, the fiber cloth has a substantially uniform water-repellent film, so that it is uniformly dyed, and the fiber cloth is uniform when dried after dyeing. Since it has excellent water repellency, it is presumed that the dye solution containing the dye has a low affinity with the fibers constituting the fiber fabric and is less likely to cause tightness.
In addition, the air permeability in a fragile type method means the value measured by JIS L1096: 1999 air permeability A method.

In the present invention, the water repellent treatment is carried out using a treatment liquid containing a fluorine or silicone water repellent. The water repellent may also have oil repellency. As the water repellent, a fluorine-based water repellent is preferably used from the viewpoint of durability, and a perfluoroalkyl acrylate copolymer is particularly preferably used.
As the fluorine-based water repellent, Asahi Guard AG-710, Asahi Guard AG-950, Asahi Guard AG-1100, Asahi Guard AG-5850, Asahi Guard GS-10, Asahi Guard LS manufactured by Asahi Glass Co., Ltd. -317, NK guard NDN-5E, NDN-7E, NDN-22E, manufactured by Nikka Chemical Co., Ltd., Dicguard F90, manufactured by Dainippon Ink & Chemicals, Inc. -61, Paragard L-88, Paragard EC-95 and the like.

From the viewpoint of durability, a crosslinking agent may be added to the treatment liquid, and examples thereof include an isocyanate crosslinking agent, a melamine crosslinking agent, an imine crosslinking agent, and an oxazoline crosslinking agent. A crosslinking agent is good.
In addition to the water repellent and the crosslinking agent, a catalyst, a penetrating agent, an SR agent and the like may be added to the treatment liquid.
As a solvent for the treatment liquid, water, an organic solvent such as terpene, isopropyl alcohol, isobutyl alcohol, and toluene can be used.

  The adhesion amount of the water repellent to the fiber fabric by the water repellent treatment in the present invention is preferably 0.1 to 3.5% by mass, more preferably 0.2 to 1.5% by mass with respect to the mass of the fiber fabric. . If the adhesion amount is less than 0.1% by mass, durability may be difficult to obtain, and if it exceeds 3.5%, the resulting water repellent fiber product may have a hard texture.

As a method for treating the fiber cloth with the water repellent treatment liquid, the treatment liquid can be applied to the fiber cloth by various methods such as a pad / dry method, a pad / steam method, a pad / dry / steam method, a gravure coating method, and a spray method. To grant.
Moreover, after providing the treatment liquid of water repellent treatment to a fiber fabric, it heat-processes at the temperature of 60 to 200 degreeC. Preferably, after drying at 60 ° C. to 120 ° C., heat treatment at 120 ° C. to 180 ° C. for about 10 seconds to 60 seconds is preferable from the viewpoint of water repellency uniformity and durability.

After the water repellent treatment is performed on the fiber fabric, sewing is performed. Sewing is done by a known method, and sew blouse, sweater, shirt, windbreaker, bag, sheets, table cloth, down jacket including batting between fiber cloth and fiber cloth, ski wear, Yakke, Anorak, etc. Good.
Examples of the material used for the cotton pad include cotton, cotton, feathers, wool, and polyester. Further, these batting materials may be subjected to water repellent treatment with a fluorine-based water repellent or the like.

  After sewing, dyeing is performed. The dye for performing the dyeing treatment may be appropriately selected depending on the material constituting the fiber fabric. If polyester, disperse dye, if cationic dyeable polyester, cationic dye, nylon or wool, if silk, acidic In the case of dyes, cotton, rayon and the like, known synthetic dyes such as reactive dyes, direct dyes and selenium dyes can be used. Natural dyes other than these synthetic dyes may also be used.

As a condition of the dyeing process, dyeing is performed by immersing the sewn fiber fabric (fiber product) in a dye solution containing the above dye. The conditions at this time may be determined in consideration of the material and dye of the fiber product, but if the fiber product made of polyester is dyed with a disperse dye, it is 30 minutes to 3 hours at 120 ° C. to 135 ° C., Bath ratio The mass of the fiber fabric: the mass of the dye solution = 1: 5 to 1: 300. From the viewpoint of leveling, it is preferable to add a pH adjuster or a surfactant as an auxiliary agent at the time of dyeing.
In addition, antibacterial agents, flameproofing agents, UV absorbers, etc. are added to the dye liquor, and at the same time as the dyeing process, antibacterial and deodorant processing, antibacterial processing, flameproofing processing, UV shielding processing, etc. Good.

A drum type dyeing machine is preferable as the processing machine used in the dyeing process.
After dyeing treatment, washing with water, washing with hot water, etc. may be performed. Also, from the viewpoint of improving fastness and preventing stickiness, if necessary, those dyed with disperse dyes used reducing agents such as hydrosulfite and thiourea dioxide and alkaline agents such as soda ash and caustic soda. The reduction cleaning may be performed at 70 to 95 ° C. for about 30 seconds to 30 minutes. In addition, those using acidic dyes may be subjected to a fixing treatment using synthetic tannin, tannic acid and tartar, or other dyes such as a direct dye, if necessary.
After the dyeing treatment, centrifugal dehydration and the like are performed, and then heat treatment is performed at a temperature of 60 ° C to 180 ° C. Preferably, after drying at 60 ° C. to 120 ° C., heat treatment is performed at 120 ° C. to 180 ° C. for about 10 seconds to 60 seconds, and the material and configuration of the fiber product (such as the presence or absence of batting and the types of auxiliary materials) The heat treatment conditions may be determined as appropriate.

The water-repellent fiber product of the present invention is a blouse, sweater, shirt, windbreaker, bag, sheets, table cloth, table cloth or a fiber cloth obtained by sewing the fiber product obtained by the above production method. It is a textile product with water repellency, such as down jackets including batting, ski wear, Yakke, Anorak. When sewing, a textile product may be obtained using auxiliary materials such as buttons, fasteners, and interlining.

EXAMPLES Hereinafter, although an Example demonstrates this invention further, this invention is not limited at all by these Examples. “%” In the examples is% by mass, and the water repellency evaluation method and air permeability in the examples were performed by the following operations.
Water repellency: JIS L1092-1998 Water repellency test (spray method) was used.
Breathability: Measured by JIS L1096-1999 Breathability A method.

(Example 1)
Spun polyester twill (warp / weft 83 dtex / 72 filament, warp density 78 / 2.54 cm, weft density 104 / 2.54 cm, air permeability greater than 10 cm ³ / cm ² · s) was used as the fiber fabric. .
A padder was used for the fiber fabric, and the following treatment solution was applied by a pad cure method, followed by heat treatment at 160 ° C. for 30 seconds to perform a water repellent treatment. The adhesion amount of the water repellent was 0.6%.

Treatment solution (for water repellent treatment)
NK GUARD NDN-7E (Nikka Chemical Co., Ltd. water repellent) 5%
(Perfluoroalkyl acrylate copolymer, solid content 20%)
Nice pole FE18 (Antistatic agent manufactured by Nikka Chemical Co., Ltd.) 0.5%
Water 94.5%

Next, an unlined coat was sewn using the fiber fabric.
Next, using a drum-type dyeing apparatus, the coating was applied to the disperse dye Sumikaron Blue E-RPD (E) (manufactured by Sumika Chemtex Co., Ltd.) 1% omf, acetic acid 0.5 g / l, surfactant 0.5 g / l, bath ratio 1:50, the temperature was raised from cold water to 130 ° C., and dyeing treatment was carried out at 130 ° C. for 30 minutes to dye blue.
Next, it was washed with water, subjected to centrifugal dehydration treatment, dried at 80 ° C. while being hung on a hanger, and heat-treated at 150 ° C. for 30 seconds to obtain a coat having water repellency.
The resulting coat had a water repellency of 5 and good water repellency. Further, there was no water repellent unevenness or stickiness, and the appearance quality was excellent.

(Comparative Example 1)
Scoured polyester twill used in Example 1 (warp / weft 83 dtex / 72 filament, warp density 78 / 2.54 cm, width 104 / 2.54 cm, air permeability 10 cm ³ / cm ² · s) Was used as a fiber fabric.
Next, an unlined windbreaker was sewed using the fiber fabric.
Next, using a drum-type dyeing apparatus, the windbreaker was dispersed with a disperse dye Sumikaron Blue E-RPD (E) 1% omf (manufactured by Sumika Chemtex Co., Ltd.) 0.5% omf, acetic acid 0.5 g / l, interface The active agent was 0.5 g / l, the bath ratio was 1:50, the temperature was raised from cold water to 130 ° C., and the dyeing treatment was carried out at 130 ° C. for 30 minutes to dye blue.
Next, it was washed with water and subjected to centrifugal dehydration treatment, followed by tumbler drying at 80 ° C.

  Next, the windbreaker dyed in blue was again placed in the drum type dyeing apparatus, and water repellent treatment was performed at room temperature using the following treatment solution.

Treatment solution (for water repellent treatment)
NK guard NDN-7E (water repellent made by Nikka Chemical Co., Ltd.) 5%
(Perfluoroalkyl acrylate copolymer, solid content 20%)
Nice pole FE18 (Antistatic agent manufactured by Nikka Chemical Co., Ltd.) 0.5%
Water 94.5%

Next, after washing with water, centrifugal dehydration treatment, drying at 80 ° C. while hanging on a hanger, heat treatment at 150 ° C. for 30 seconds to obtain a wind breaker having water repellency. The water repellency of the water was 5 and the water repellency was good, but it had good water repellency. It was hard. Furthermore, the inside of the dryer was contaminated with a water repellent.
Moreover, the treatment solution similar to the above was applied to the coat hung on the hanger by spraying without using a drum type dyeing apparatus.
When there is little water repellent by spraying, sufficient water repellency performance cannot be obtained, and when sprayed until sufficient water repellency performance is obtained, water repellency unevenness and texture are partially It was hardened or discolored or wrinkled by water repellent.

(Example 2)
Spun nylon lip taffeta (warp / weft 22 dtex / 20 filament, warp density 198 / 2.54 cm, width 178 / 2.54 cm, breathability 0.89 cm ³ / cm ² · s) as a fiber fabric Using.
A padder was used to apply the following treatment solution to the fiber fabric by a pad dry cure method, followed by drying at 120 ° C. for 30 seconds, followed by heat treatment at 150 ° C. for 30 seconds to perform water repellent treatment. The adhesion amount of the water repellent was 0.3%.

Treatment solution (for water repellent treatment)
Asahi Guard GS-10 (Asahi Glass Co., Ltd. water repellent) 5%
(Perfluoroalkyl acrylate copolymer, solid content 20%)
UNIKA RESIN 380K (Union Chemical Industries, Ltd. Melamine resin) 0.3%
Unica Catalyst PA33 (Catalyst, Union Chemical Industries, Ltd.) 0.05%
Nice pole FE18 (Antistatic agent manufactured by Nikka Chemical Co., Ltd.) 0.5%
94.15% water

Next, a down jacket using polyester cotton as a batting was sewn between the outer fabric and the lining fabric using a water-repellent fiber fabric.
Next, using a drum-type dyeing apparatus, the textile product sewn is acid dye Nylosa Yellow N-3RL (manufactured by Clariant Japan Co., Ltd.) 0.5% omf, Meisan PC (manufactured by Meisei Chemical Industry Co., Ltd.) 0 0.5 g / l, surfactant 0.3 g / l bath ratio 1:50, the temperature was raised from cold water to 100 ° C., and dyeing treatment was performed at 100 ° C. for 30 minutes to dye yellow.
Next, after washing with hot water and water, a fix treatment was performed at 1% omf and 80 ° C. for 20 minutes with Dimafix ESK (manufactured by Meisei Chemical Co., Ltd.). Thereafter, centrifugal dehydration treatment was performed, tumbler drying was performed at 80 ° C., and heat treatment was performed at 150 ° C. for 30 seconds to obtain a down jacket having water repellency.
The jacket obtained had a water repellency of 5 and a good water repellency.
Further, even a high-density woven fabric with low air permeability has no water-repellent unevenness or stickiness and excellent appearance quality.

(Example 3)
Spun polyester plain fabric (warp 28 dtex / 48 filament, weft 56 dtex / 108 filament, warp density 270 / 2.54 cm, weft density 150 / 2.54 cm, air permeability 0.95 cm ³ / cm ² · s ) Was used as the fiber fabric.
A padder was used to apply the following treatment solution to the fiber fabric by a pad dry cure method, followed by drying at 120 ° C. for 30 seconds, followed by heat treatment at 150 ° C. for 30 seconds to perform water repellent treatment. The adhesion amount of the water repellent was 1.0%.

Treatment solution (for water repellent treatment)
Asahi Guard GS-10 (Asahi Glass Co., Ltd. water repellent) 10%
(Perfluoroalkyl acrylate copolymer, solid content 20%)
UNIKA RESIN 380K (Union Chemical Industries, Ltd. Melamine resin) 0.3%
Unica Catalyst PA33 (Catalyst, Union Chemical Industries, Ltd.) 0.05%
Nice pole FE18 (Antistatic agent manufactured by Nikka Chemical Co., Ltd.) 0.5%
Water 89.15%

Next, the down jacket was sewed using the water-repellent-treated fiber fabric and using the water-repellent-treated feathers as the batting between the fiber fabric.
Next, using a drum-type dyeing apparatus, the fiber product sewn was dispersed into a disperse dye, Kayalon Polyester Black EX-SF (manufactured by Nippon Kayaku Co., Ltd.) 8% omf, acetic acid 0.5 g / l, surfactant 0. 3 g / l, bath ratio 1:50, the temperature was raised from cold water to 135 ° C., and dyeing treatment was carried out at 135 ° C. for 30 minutes to dye black.
Next, 2 g / l of hydrosulfite and 2 g / l of soda ash were added and subjected to reduction washing at 85 ° C. for 20 minutes, followed by hot water washing and water washing. Thereafter, centrifugal dehydration treatment was performed, tumbler drying was performed at 80 ° C., and heat treatment was performed at 150 ° C. for 30 seconds to obtain a down jacket having water repellency.
The jacket obtained had a water repellency of 5 and a good water repellency.
Moreover, even if the fiber fabric has low air permeability and high density, there is no water-repellent unevenness or stickiness, and the appearance quality is excellent.

Claims (3)

  A method for producing a water-repellent fiber product, comprising performing a water-repellent treatment on a fiber fabric, sewing the fabric, and then performing a dyeing treatment.   The method for producing a water-repellent fiber product according to claim 1, further comprising a batting between the fiber cloth and the fiber cloth. The method for producing a water-repellent fiber product according to claim 1 or 2, wherein the air permeability of the fiber fabric in the fragile form method is 10 cm ³ / cm ² · s or less.