JP2007314917A - Water-repelling fabric, water-repelling fabric product and their production method - Google Patents

Water-repelling fabric, water-repelling fabric product and their production method Download PDF

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JP2007314917A
JP2007314917A JP2006147859A JP2006147859A JP2007314917A JP 2007314917 A JP2007314917 A JP 2007314917A JP 2006147859 A JP2006147859 A JP 2006147859A JP 2006147859 A JP2006147859 A JP 2006147859A JP 2007314917 A JP2007314917 A JP 2007314917A
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water
fabric
repellent
pattern
repellent fabric
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Kenji Akizuki
Sumio Hishinuma
Koichi Matsumoto
晃一 松本
健司 秋月
澄男 菱沼
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Toray Ind Inc
東レ株式会社
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Abstract

[PROBLEMS] To improve the drainage and durable water repellency of water drops of fabrics and products in applications such as umbrellas and rain clothes in the prior art.
The fabric includes at least a multifilament of synthetic fibers, the fabric has a water repellency of 3 or more according to JIS L1092 after 20 washings, and a fine line pattern is printed on the surface of the fabric. A water repellent fabric, a water repellent product, and a method for producing the same.
[Selection figure] None

Description

  TECHNICAL FIELD The present invention relates to a highly water-repellent fabric and water-repellent fabric product having good drainage of water droplets in applications such as umbrellas and rain gowns, and a production method thereof.

  In recent years, woven and knitted fabrics for clothing have been oriented toward modern comfortable life, and comfort is also required for rain umbrellas and rain clothes in rainy weather. Even when wearing an umbrella for a relatively short time, water repellency is poor after closing the umbrella, so water drops will flow gently and wet clothes, and when drops fall into the train or shop etc. Often experiences unpleasant thoughts.

  In addition, in raincoats such as windbreakers, kappa, and coats, there are problems that water repellency is poor in areas where the friction of elbows and arms, and areas where pockets and chucks become dirty, resulting in similar discomfort. This is because the water-repellent fabric is interspersed with water, so that physical action such as folding of the fabric when worn, abrasion to the fabric, friction, etc. is added in a so-called wet state. In many cases, the fluorine-based fluoroethylene group) is caused by the water-repellent agent being peeled off due to the falling of the group due to moisture, and the water-repellent agent peeling or cracking. At the same time as this physical action, the water repellent of the fabric is oleophilic, so it is assimilated with dirt in the air and oil droplets on the hands, etc., and the fabric water repellent is pulled out to reduce the water repellency of the fabric. This is the cause of the increase. When such physical action and oil droplets are repeatedly applied, the water repellent durability becomes poor, the so-called “drainage” of the above-mentioned umbrellas and rain clothes deteriorates, and the above-mentioned discomfort is caused.

  For these reasons, the development of water repellents and methods for fixing water repellents to fabrics have been actively carried out day and night by water repellent manufacturers and water repellent finishers in terms of improving the durability of water repellent finishes. However, it has not been solved.

  Furthermore, a swimsuit has been proposed in which a water-repellent finish is applied to a competitive swimsuit having elasticity, and a plurality of fine grooves parallel to the body length direction are formed to speed up the competition (for example, see Patent Document 1). .

  However, such a swimsuit is an elastic fabric (knitted fabric) that reduces the resistance of water in the water, and is effective in such applications, but in umbrella and rainwear applications, water leaks due to the knitted fabric. In addition, due to the stretchability, there is a problem that the water repellent agent attached to the fabric is easily peeled off and cannot be applied in these applications.

As described above, conventional water repellents and water repellent methods cannot provide drainage and durability with high water repellency.
JP 2000-314015 A

  As a result of diligent research on the problem, the present inventors have found that conventional water-repellent fabrics have a flat fabric, so that when umbrellas or raincoats are used, water droplets first adhere to the fabric, which is the surface tension of the fabric. It is a phenomenon that water droplets flow down from the surface of the fabric due to its own weight only after it wins, and the water droplets stay on the fabric for a long time. Although this staying time is related to the amount of rainfall, it takes a long time to drain the water, allowing water to enter the fabric. It was noted that when oil droplets such as physical friction or hand dust on the above-mentioned wearing were attached to this, the cause was that the water repellent durability was suddenly lost by further increasing water penetration.

  In other words, in order to improve the water repellency durability of the fabric, it is assumed that the fabric is a structure having a relatively high density and can be woven, and how water drops from the fabric quickly flow down and the water flows down. This part has reached the basic concept of the present invention, in which it is necessary to create a fabric surface structure that is less susceptible to friction and wear and to which oil droplets and the like are less likely to adhere.

  In accordance with this basic concept, the present invention creates an uneven groove on the surface of the fabric so that water droplets can be quickly spilled on the fabric without causing the water droplets to stay for a long time, and the initial water repellency can be maintained at any portion where the water flows. That is. This uneven groove serves as a drainage channel, but at the same time, since there is a water repellent inside the groove, it is difficult to receive oil such as friction and dirt from the surface, so extremely good water repellency durability It will give birth.

  As a result, a fabric having good drainage and high water repellency durability can be obtained.

  That is, an object of the present invention is to provide a highly water-repellent fabric and water-repellent fabric product having good water drainage and durability in applications such as umbrellas and rain gowns, and methods for producing them.

In order to achieve the above object, the present invention adopts the following configuration. That is,
(1) A fabric including at least a multifilament of synthetic fibers, the fabric having a water repellency of 3 or more according to JIS L 1092 after 20 washings, and a recess and / or a protrusion on the surface of the fabric A water-repellent fabric characterized in that the pattern is engraved.

  (2) The water-repellent fabric according to (1), wherein a groove width of the concave portion and / or the convex portion of the pattern is 5 mm or less.

  (3) The water repellent fabric according to (1) or (2), wherein the multifilament of synthetic fiber is a polyester fiber or a polyamide fiber.

(4) The water repellent fabric according to any one of (1) to (3), wherein the fabric has a basis weight of 50 to 300 g / m 2 .

  (5) The water-repellent fabric according to any one of claims 1 to 4, wherein the warp and the elongation in the weft direction of the fabric are both 5% or less.

  (6) A sewn product using the water-repellent fabric according to any one of (1) to (4) above, wherein the concave and / or convex patterns of the fabric follow the pattern and water drops flow down. The water-repellent fabric product is characterized by being cut and sewn.

  (7) The water-repellent fabric product according to (6), wherein the water-repellent fabric product is cut and sewn so that the recessed line and / or the stamped line of the protruding part comes in the vertical direction of the body.

  (8) The water-repellent fabric product according to (6) or (7) above, wherein the water-repellent fabric product is an umbrella or an umbrella using the umbrella.

  (9) The water-repellent fabric product according to (6) or (7) above, wherein the water-repellent fabric product is a rain clothing or a rain clothing using the rain clothing.

  (10) After scouring and dyeing a fabric containing at least a multifilament of synthetic fibers, a water repellent is attached to the fabric in a pure content of 0.01 to 10.0% by weight, followed by water repellent processing, A method for producing a water-repellent fabric, comprising: stamping by pressing with a metal roll having a pattern pattern of convex portions, or performing water-repellent processing after the stamping.

  (11) The pattern of the thin line of the metal roll is a pattern having a linear recess and / or a protrusion, and the groove width of the recess and / or the protrusion of the pattern is imprinted to 5 mm or less. The method for producing a water-repellent fabric as described in (10) above.

(12) The method for producing a water-repellent fabric according to (10) or (11), wherein the press pressure of the metal roll is 3 to 200 kg / cm 2 .

  (13) The method for producing a water-repellent fabric according to any one of (10) to (12), wherein a press temperature of the metal roll is 10 to 250 ° C.

  (14) Using the fabric obtained by the manufacturing method according to any one of (10) to (13), the pattern pattern of the recessed portion and / or the protruding portion that has been imprinted follows the pattern pattern so that water drops flow down. A method for producing a water-repellent fabric product, characterized by being cut and sewn.

  ADVANTAGE OF THE INVENTION According to this invention, it is set as the water-repellent fabric and water-repellent fabric product which have the good water-repellent property in the use of an umbrella, a raincoat, etc. which were not obtained by the prior art, and have the durable high water repellency. These water-repellent fabrics and water-repellent fabric products can be produced efficiently.

  Hereinafter, the present invention will be described in more detail.

  The fabric referred to in the present invention is a general term for fabrics such as woven fabrics, knitted fabrics, and nonwoven fabrics. Among them, the fabric is a preferred form because of its structure, the fine line pattern of the present invention is easily stamped, and the effect is great. Although there is no particular limitation on the texture of the woven fabric, a plain weave or a twill weave, which is a dense structure, is particularly preferable because the pattern can be easily stamped.

  From the same effect, it is preferable that the fabric contains 50% by weight or more, preferably 100% by weight of multi-filaments of thermoplastic synthetic fibers. That is, since such synthetic fibers are thermoplastic, the fine lines can be clearly marked when stamped with a metal roll. Short fibers such as spun yarn and natural fibers such as cotton and wool are not preferable because they are non-thermoplastic and have a structure that easily contains air in the fabric, making it difficult to carry out the stamping. In the case of using such a fiber, it is a preferable method because the thermoplasticity is utilized by blending, twisting, knitting or knitting with a thermoplastic synthetic fiber. When mixed, it is preferable to mix 50% by weight or less of the fabric.

  As the synthetic fibers constituting the fabric, multifilament polyester fibers or polyamide fibers are preferably used in view of the above effects. The polyester fiber is not particularly limited as long as it is a so-called polyester that undergoes polycondensation from an acid component and an alcohol component, but polyethylene terephthalate is most preferable because of its high thermoplasticity and excellent physical properties such as strength. Moreover, since it has stretch property, polybutylene terephthalate and polypropylene terephthalate can also be applied preferably. In addition, biodegradable polylactic acid fibers are preferable from the environmental viewpoint.

  Among polyamide-based fibers, for example, nylon 6, nylon 66, nylon 11, nylon 12, nylon 610, nylon 46 and the like are preferable from the viewpoints of thermoplasticity, water repellent adhesiveness, and the like, particularly from the viewpoint of fiber formation, manufacturing cost, and versatility. Nylon 6 and nylon 66 are particularly preferred.

  If a specific multifilament configuration of such a fiber is given, it is preferable that the surface area of the fiber can be increased from the stampability, water repellency and water resistance, and that the total fineness and the single fiber fineness are thin. For example, the total fineness is preferably 10 to 300 dtex (hereinafter abbreviated as dtex), and the single fiber fineness is preferably 0.05 to 10 dtex. In particular, the total fineness is preferably 30 to 150 dtex, and the single fiber fineness is particularly preferably 0.2 to 5 dtex from the above-mentioned characteristics such as stampability. Those having a fineness of less than this range are weak in strength and are torn at the time of stamping, and those having a fineness of fineness exceeding this range are not preferred because the stamping is not sufficient and the effects of the present invention cannot be exhibited. Absent.

  Further, as the yarn used, since the raw yarn (drawn yarn: raw yarn) has not been subjected to a thermal history, it is preferably used because the engraving property is further improved. Although the stampability of the false twisted yarn or the strongly twisted yarn is somewhat inferior, the effect can be enhanced by increasing the pressing pressure and the pressing temperature at the time of stamping.

  Such multifilaments of synthetic fibers are preferably contained in an amount of 50% by weight or more based on the fabric. It is an important requirement for achieving the object of the present invention from the stampability, water repellency and durability of the synthetic fiber due to thermoplasticity. A synthetic fiber content of less than 50% by weight is not preferred because the drainage and water repellency durability effects are poor.

Since the fabric weight is easy to print, it is preferably relatively small, and the weight is preferably 50 to 300 g / m 2 . Of these, those of 70 to 150 g / m 2 are particularly preferable. If the fabric weight is less than 50 g / m 2 , the fabric will be too thin, the fabric will open too much and the water repellency will decrease, and if it exceeds 300 g / m 2 , the fabric will be too thick and the stamp will be insufficient. It is not preferable.

  Moreover, it is preferable that the fabric of this invention is 5% or less in both the warp and elongation directions of the fabric. This elongation rate includes 0%. If the stretchability is low, the water repellent is difficult to peel off, and there is no water leakage during stretching, and the stamping process is easy, so that the high water repellency and water drainage of the present invention can be obtained.

  The elongation rate test method referred to here is in accordance with the JIS L 1096A method.

  In the present invention, such a fabric has a water repellency of 3 or more according to JIS L 1092 method (spray test) after 20 washings. This is an important requirement that the water repellency durability effect of the present invention can be sufficiently exhibited if the water repellency is a high level of 3 or more. Those less than 3 are not preferred because the water-repellent durability is poor.

  An outline of a method for evaluating the water repellency of the JIS L 1092 method will be described. The water repellency evaluation method is called a spray test. Three pieces of 20 cm square fabric (fabric) are collected and 250 cc of water is obliquely attached to the bottom from a height of 34 cm using a water repellency test device. Water is dripped in the form of a spray toward a certain fabric. Next, the fabric is removed, tapped lightly to drop water droplets, the state of water droplets remaining on the fabric surface is compared with a standard photograph, and the water repellency is visually evaluated and judged in five stages. Water repellency 5: The surface has no wetness or adhesion of water droplets (good) to the water repellency 1: the surface has wetness (bad). Water repellency: 3 or more is a preferred level of water repellency.

In addition, the drainage evaluation said by this invention is evaluated according to the said water repellency evaluation. In the water repellency evaluation method, the evaluation is such that the water drops are dropped by tapping lightly, so the evaluation of the water repellency and the evaluation of water drainage have a correlation, and in the present invention, the evaluation of the water repellency and the evaluation of water drainage are of the same class. We will handle it.
The evaluations of water repellency and drainage are both evaluations after 20 washings. The washing evaluation method is JIS L 0127-103 (household washing machine with centrifugal dehydrator, with synthetic detergent, bath ratio). : 1:30, washing once for 5 minutes, washing for 2 minutes, rinsing for 2 minutes, flat drying after washing). In the present invention, the term “20 washings” refers to one washing / drying of the method repeated 20 times.

  Next, the manufacturing method of this invention is demonstrated.

  The above-described synthetic fiber is used to fabricate a fabric using a desired raw yarn. Although it does not specifically limit about the process of the cloth (fabric machine) manufactured, it gives an example and demonstrates. Immediately scour the fabric, and remove the paste. It is processed for about 3 minutes at 90 to 98 ° C. with a normal continuous scourer. Next, dry heat is set at 140 to 200 ° C. for about 1 minute with a pin tenter to fix the form of the dough. Next, the polyester fiber is dyed with a disperse dye, and the polyamide fiber is dyed with an acid dye or a reactive dye by a usual method.

  Next, the process is advanced by selecting either the process of engraving with a metal roll and then performing the water-repellent process or the process of performing the process after performing the water-repellent process. Neither process has a significant effect on functionality, but the former process is preferred because of the good workability of stamping and the stability of the fabric. The latter is preferable for materials that are hard or do not have flexibility, such as thick fabrics. The process is appropriately selected depending on the state of the fabric.

  Next, the water repellent finish will be described first. The water repellent used is preferably a fluorine-based water repellent from the viewpoint of water repellent performance. There are silicon-based and paraffin-based water repellents in addition to the fluorine-based ones.

  Although it does not specifically limit as a fluorine-type water repellent, Perfluoroethylene type | system | group and its copolymer composition thing is preferably used since it has high water-repellent performance.

  In the present invention, it is important that the water repellent finish is processed so that a fluorine-based water repellent is adhered to the fabric in a pure amount of at least 0.01 to 10% by weight. This range is an important requirement from the viewpoint of the water-repellent durability and workability of the present invention. Most preferably, it is 0.5 to 7.0% by weight. When the amount of the water repellent adhering to the fabric is less than 0.01% by weight, the water repellency is poor, and when it exceeds 10% by weight, the texture becomes harder or the stamping roll is soiled to clean this work. Since the property is inferior, neither is preferable.

  Next, pressing on a fabric with a metal roll and stamping will be described. What is usually called calendering or silling is a process of using a metal roll with a smooth surface of a heating type, crushing the fabric with a roll separate from the roll, and imparting water resistance and gloss to the fabric. In the present invention, a thin line, which will be described later, is imprinted on the metal roll, and the cloth is imprinted with the roll. Processing by such an imprinting roll is generally called a Schleiner calendar, and a fabric is nipped between the roll and a roll having a slightly lower hardness than this roll, for example, a roll having a smooth surface such as a rubber roll, and a high press pressure. A pattern such as a fine line is imprinted on the fabric at a high temperature under heating.

In this case, the present invention uses a roll engraved with a special thin line, which will be described later, but it is important to clearly impart the engraving to the fabric. For this reason, it is preferable to process on the conditions of a press pressure of 3-200 kg / cm < 2 >. Within this range, the marking is clear and sufficient water-repellent durability can be obtained, and there is no damage to the woven fabric. To illustrate specific conditions, it is preferable to treat 50 dtex grade thin fabrics under the conditions of 30 to 100 kg / cm 2 and 150 dtex grade medium thick fabrics under the conditions of 50 to 150 kg / cm 2 .

If the press pressure is less than 3 kg / cm 2 , the imprinting on the fabric is too weak and the performance of dropping water drops is insufficient, and if it exceeds 200 kg / cm 2 , the imprinting on the fabric is strongly scratched or damaged. Neither is desirable because it occurs.

The press temperature is related to the press pressure, but the treatment is preferably performed at 10 to 250 ° C. If the press pressure is high, the press temperature is preferably in a relatively low temperature region, while if the press pressure is low, it is preferable to press in a high temperature region. For example, if the press pressure is about 150 kg / cm 2 or more, it may be about 10 to 120 ° C., whereas if the press pressure is as low as 150 kg / cm 2 or less, it is in a high temperature range of 120 to 250 ° C. Process at the press temperature. These conditions are appropriately set and processed from the basis weight of the fabric, the yarn usage, the softening point of the raw yarn, the melting point, and the like.

  In addition, the metal roll preferably has a straight line pattern pattern, but may have a curved line pattern. It is preferable from the viewpoint of drainage and water repellency that the groove width of the concave and / or convex portions of the pattern is engraved on the fabric using a metal roll which is at least 5 mm or less. Most preferably, it is 0.5 to 3.0 mm. This is a preferred range in which the width of the groove is designed by considering drainage properties in relation to the drop speed of water droplets. When the groove width of the fine wire exceeds 5 mm, it is not so different from a normal flat fabric, which is an undesirable range.

  The pattern to be printed on the metal roll is not particularly limited as long as the fabric sewn product is a fine line printed on the roll so that water droplets flow along the straight line or curved pattern of the thin line. Preferred examples include a simple straight line pattern, a rhombus pattern, and a herringbone pattern in which fine diagonal thin lines are included in a thick straight line at the bottom of a mountain. These fine line patterns need to be designed in anticipation of the direction of water flow in the final sewing product. For example, when cutting in the weft direction of the fabric and sewing it to an umbrella or rain gown, and finishing it into a product, the weft direction is the vertical direction of the body, so the roll thin line is engraved in the groove in the weft direction, and this roll Treat the fabric with. On the other hand, when cutting in the warp direction of the woven fabric, it is treated with a roll of warp grooves. In any case, the engraving roll is set to a horizontal groove or a vertical groove roll in accordance with the cutting direction of the fabric in the case of making a product, and the processing is performed.

  After the above stamping process and water repellent process, it is then set and finished with a pin tenter at 120 to 180 ° C. according to a conventional method.

  The finished fabric is cut in the weft direction or the warp direction of the fabric, and is sewn so that water droplets flow so that fine lines come in the vertical direction of the body. In the case of an umbrella, water droplets flow in the vertical direction of the umbrella by cutting the triangle in the weft direction of the fabric. In the case of rain clothes, the product of the present invention can be obtained by cutting and sewing in the same manner.

  As described above, the present invention is a conventional manufacturing process, in which the conventional flat roll is simply changed to a grooved roll, and therefore, no special process is required, so that it can be manufactured very efficiently.

  As described above, according to the present invention, the cloth, the sewn product, and the manufacturing method thereof have a good water-repellent property and high durability and water repellency in applications such as umbrellas and rain clothes, which cannot be achieved by the prior art. Fabrics and fabric products could be produced efficiently.

  Hereinafter, the present invention will be described in more detail with reference to examples. The physical properties are measured as follows.

A. Evaluation of water repellency of fabric The water repellency of the fabric after 20 washings was evaluated by the JIS L 1092 method (spray test). The water repellency was visually evaluated in five steps as follows in comparison with a standard photograph. Water repellency 5 (excellent), water repellency 4 (excellent to good), water repellency 3 (good), water repellency 2 (slightly poor), water repellency 1 (poor), water repellency 3 or more Water repellency is a preferred level.
"Water repellency evaluation"
Water repellency 5: No wetting or water droplets on the surface Water repellency 4: No wetting on the surface but showing small water droplets water repellency 3: One showing small individual water droplets on the surface Water repellency 2: one half of the surface shows wetness, small individual wetness shows a state of penetrating the fabric water repellency 1: one shows wetness on the entire surface Evaluation of the drainability of the fabric The evaluation was made in the same manner as the evaluation method for the water repellency. Visually evaluate drainage in 5 stages, drainability 5: very good with no wetness or adhesion of water droplets on the surface to drainage 1: poor wetness on the entire surface. Drainability: 3 or more is a preferred level for drainage.

C. Method for evaluating washing of fabric The method for evaluating washing of fabric was washed 20 times in accordance with JIS L 0217-103. Thereafter, the water repellency and drainability of the fabric were evaluated.

D. Evaluation of fabric texture Ten people were monitored for the texture of the finished fabric. The result
○: normal texture is acceptable
Δ: The texture is a little hard and not very good.
×: The texture is hard and not good.
Evaluation based on the criteria.

E. Evaluation Method of Elongation Rate of Fabric The evaluation method of the elongation rate of warp (warp yarn direction) and weft (weft direction) of the fabric was evaluated according to JIS L 1096A method.

E. Example 1 of Evaluation Method of Elongation Ratio of Fabric
Polyester multifilament yarn ("Tetron" (registered trademark) Semidal yarn (manufactured by Toray Industries, Inc.)) of 56 dtex and 96 filament (single yarn fineness: 0.58 dtex) is used as the warp, and the polyester multifilament is used as the weft. 84 decitex, 72 filament yarn (single yarn fineness: 1.17 dtex) was used to weave into a plain weave with a warp density of 166 yarns / 吋 and a weft density of 89 yarns / 吋 with a basis weight of 82 g / m 2 . Subsequently, continuous scouring (95 ° C. × 2 minutes), drying and setting (180 ° C. × 40 seconds) were performed. Subsequently, it was dyed with a dark blue disperse dye (135 ° C. × 45 minutes). Subsequently, it stamped on the following conditions.
"Engraving"
-Used roll (roll A) ... A roll (width: 2000 mm, diameter: 600 mm) in which a straight thin line (width: 2 mm, depth: 2 mm) is imprinted in the horizontal direction on the surface of the metal roll.
・ Pressing temperature ... 190 ℃
・ Pressing pressure: 80 kg / cm 2
Processing speed: 10 m / min. Then, water repellent processing was performed under the following conditions.
"Water repellent finish"
・ Water repellent prescription fluorinated water repellent: GS-10 (manufactured by Meisei Chemical Co., Ltd.) 60 g / L
Binder: Sumitex Resin M-3 (Sumitomo Chemical Co., Ltd.) 4g / L
Catalyst: Sumitex Accelerator ACX (manufactured by Sumitomo Chemical Co., Ltd.) 0.5 g / L
Penetration agent: Isopropyl alcohol 20g / L
・ Pickup rate: 65%
・ Drying temperature, time ・ ・ ・ 130 ℃ × 3min ・ Curing temperature, time ・ ・ ・ 180 ℃ × 4min ・ Adhesion rate of water repellent to textiles… 0.39wt%
Subsequently, the film was finished with a pin tenter at 165 ° C. × 40 seconds.
The elongation rate of the finished woven fabric was warp (warp direction): 1.1% and weft (width direction): 2.1%. Other evaluation results are shown in Table 1.
Further, eight sheets of isosceles triangles (one side: 630 mm, bottom side: 420 mm) were cut in the weft direction of the woven fabric, in which fine lines were imprinted in the dark blue weft direction, and these were sewn together on a parasol. The parasol was manufactured with a handle and a total length of 940 mm, a diameter of 1040 mm, and an average inclination of 30 °. As a result of wearing this umbrella, the drainage when the umbrella was worn and the drainage when the umbrella was closed were very good and comfortable. Further, even when worn for a long period of time, the water repellency is almost the same as the initial one, and the wear durability is of a level that is incomparable with conventional umbrellas.

Example 2
Polyamide multifilament yarn (nylon-6, semi-dal yarn, (manufactured by Toray Industries, Inc.)) of 56 dtex and 40 filaments (single yarn fineness: 1.4 dtex) is used for the warp, and 78 dtex of the same polyamide multifilament is used for the weft. 68 filament yarn (single yarn fineness: 1.15 dtex) was used to weave into a twill weave with a warp density of 191 yarns / 吋 and a weft density of 96 yarns / 吋 with a basis weight of 77 g / m2. Subsequently, continuous scouring (95 ° C. × 2 minutes), drying and setting (170 ° C. × 40 seconds) were performed. Subsequently, it was dyed with dark brown metal-containing acid dye (98 ° C. × 40 minutes). Next, after performing a fix treatment by a conventional method, it was stamped under the following conditions.

"Engraving"
・ Roll used (Roll B) .... Vertically shaped mountain-shaped herringbone-shaped wire (width: 4.0 mm, width of one herring: 1.5 mm, depth: 2 mm) on the surface of the metal roll Roll (width: 2000 mm, diameter: 600 mm).
・ Pressing temperature: 180 ℃
・ Pressing pressure: 90 kg / cm 2
Processing speed: 10 m / min Then, the water-repellent processing was finished according to Example 1.
The elongation ratio of the finished dark brown nylon fabric was warp (warp direction): 1.7% and weft (width direction): 2.7%. Other evaluation results are shown together in Table 1.
Further, the fabric in which fine lines were engraved in the shape of cedar in the warp direction of dark tea was cut in the warp direction of the fabric and sewn in a raincoat: windbreaker. As a result of wearing this rain gown, the draining property when worn and the draining property when the rain gown was taken off were very good and a comfortable wearing feeling. In addition, even when worn for a long period of time, the water repellency remained almost unchanged from the initial one, and the wear durability was maintained so high that it was incomparable with conventional rain gowns.

Comparative Example 1
A comparison of Example 1, a polyester fabric and umbrella made according to Example 1 except that it was calendered with a conventional flat metal roll not stamped.

Comparative Example 2
A comparison of Example 2, nylon fabric and raincoat manufactured according to Example 2 except that it was calendered with a conventional flat metal roll not stamped.
The finished results of Comparative Examples 1 and 2 are also shown in Table 1.

  As is apparent from Table 1, both Examples 1 and 2 were extremely excellent in water repellency and drainage after 20 washings of 4 or more. There was no problem with the texture. On the other hand, Comparative Examples 1 and 2 were inferior in water repellency and drainage, and had a hard texture.

Claims (14)

  1. A fabric comprising at least a multifilament of synthetic fibers, the fabric having a water repellency of 3 or more according to JIS L 1092 after 20 washings, and a pattern of recesses and / or projections on the surface of the fabric Is a water repellent fabric characterized by being engraved.
  2. 2. The water-repellent fabric according to claim 1, wherein a groove width of the concave portion and / or the convex portion of the pattern is 5 mm or less.
  3. The water repellent fabric according to claim 1 or 2, wherein the multifilament of the synthetic fiber is a polyester fiber or a polyamide fiber.
  4. Water repellent fabric according to claim 1, basis weight of the fabric characterized in that it is a 50 to 300 g / m 2.
  5. The water repellent fabric according to any one of claims 1 to 4, wherein the warp and the elongation in the weft direction of the fabric are both 5% or less.
  6. A sewn product using the water-repellent fabric according to any one of claims 1 to 4, wherein the pattern of the concave and / or convex portions of the fabric is cut and sewn so that water drops flow along the pattern. A water-repellent fabric product characterized by being made.
  7. The water-repellent fabric product according to claim 6, wherein the water-repellent fabric product is cut and sewn so that a marking line of the concave portion and / or the convex portion comes in a vertical direction of the body.
  8. The water-repellent fabric product according to claim 6 or 7, wherein the water-repellent fabric product is an umbrella or an umbrella using the umbrella.
  9. The water-repellent fabric product according to claim 6 or 7, wherein the water-repellent fabric product is a rain clothing or a rain clothing using the rain clothing.
  10. After scouring and dyeing a fabric containing at least multifilaments of synthetic fibers, a water repellent agent is applied to the fabric in a pure amount of 0.01 to 10.0% by weight, followed by water repellency, and then recessed and / or raised. A method for producing a water-repellent fabric, comprising: stamping by pressing with a metal roll having a pattern of part, or performing water-repellent processing after the stamping.
  11. The method for producing a water-repellent fabric according to claim 10, wherein a groove width of the concave portion and / or the convex portion of the handle pattern of the metal roll is imprinted to 5 mm or less.
  12. Method for producing a water-repellent fabric according to claim 10 or 11 a pressing pressure of the metal roll is characterized in that it is a 3~200kg / cm 2.
  13. The method for producing a water-repellent fabric according to any one of claims 10 to 12, wherein the press temperature of the metal roll is 10 to 250 ° C.
  14. Using the fabric obtained by the manufacturing method according to any one of claims 10 to 13, cutting and sewing so that the patterned pattern of the recessed part and / or the convex part stamped on the printed pattern follows the pattern. A method for producing a water repellent fabric product.
JP2006147859A 2006-05-29 2006-05-29 Water-repelling fabric, water-repelling fabric product and their production method Pending JP2007314917A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012012739A (en) * 2010-07-02 2012-01-19 Teijin Fibers Ltd Woven fabric for side cloth and fiber product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012012739A (en) * 2010-07-02 2012-01-19 Teijin Fibers Ltd Woven fabric for side cloth and fiber product

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