JPH0274674A - Production of water-repellent raised fabric with wrinkle - Google Patents

Abstract

PURPOSE:To obtain the title fabric excellent in durability by making a weaving using synthetic fiber combined filament bulky textured yarn with smaller denier false-twisted yarn provided on the outer layer of larger denier yarn followed by emery raising, wrinkling and dyeing and then application of a fluorine-based water repellent. CONSTITUTION:Both larger denier and smaller denier yarns made of synthetic fiber are put to air jet combination at an overfeed ratio of >=1.01 of the latter to 1 of the former to produce multi-fineness-bulky textured yarn 50-300 denier in the total fineness with the surface outer layer formed with the latter yarn. A fabric is then woven using the bulky textured yarn as one or both of weft and warp. Thence, this fabric is subjected to emery raising, wrinkling, dyeing and fluorine-based water repellent application successively in this order, thus obtaining the objective fabric excellent in durability having wrinkles thereon with water droplets ready to roll.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing a water-repellent raised fabric having wrinkles and a surface on which water easily rolls.

Recently, 1Ω water-treated fabrics, which are water-repellent fabrics with wrinkles applied to them, have become more common, adding so-called sensibilities, but consumers are also demanding more luxurious products with a raised finish. There is.

However, all of these products are simply water-repellent or wrinkle-treated ordinary textiles, and they do not take into account the thread usage, surface condition, and texture of the textile. There were few. Furthermore, the brushed surface provides high performance.
8 None of them had aqueous properties.

Even with water-repellent fabrics for products that add this kind of sensibility, the wrinkles will disappear after repeated washing, and J
Even if the TA water resistance rating according to the IS L-1092 spray method is 100, if you spray water droplets on these water-repellent fabrics and rub them lightly with your palm, the water droplets will adhere to the surface of the fabric. It had some drawbacks.

(Problems to be Solved by the Invention) The present invention has been made in view of the current situation, and provides a fabric with good durability of the wrinkled effect and also eliminates the drawback that water droplets easily adhere to the surface of the fabric. The object of the present invention is to produce a novel wrinkled old water-based fabric with a water-repellent surface on which water droplets easily roll.

(Means for Solving the Problems) In order to achieve the above object, the present invention has the following configuration.

That is, the present invention uses thick yarns and fine yarns of synthetic long fibers, and after false twisting the fine yarns, overfeed the former with 1 and the latter with air jet over 01 or more. Synthetic long fibers with a total fineness of 50 to 300 deniers, in which fine-grained yarns form the outer surface layer by blending, are used for both the warp, weft, or weft to create a woven fabric. A first step of weaving and then emery raising, a second step of wrinkle-processing the fabric, a third step of dyeing the fabric, and further applying a fluorine-based 1Ω liquid agent to the fabric. The gist of the present invention is to provide a method for producing a water-repellent raised fabric having wrinkles, which is characterized by performing a fourth step of processing.

The present invention will be explained in detail below.

The synthetic fibers used in the present invention include polyester-based, polyamide-based, and other synthetic fibers.

In the present invention, first, thick yarn and fine yarn of synthetic long fibers are used, and after false twisting the fine yarn, each overfeed is 1 to 1 for the former, and air is applied to 01 or more for the latter. By jet blending, fine fibers are removed from the surface.
Fabrics are made by using bulky textured yarns of synthetic long fibers with a total fineness of 50 to 300 deniers (hereinafter referred to as mixed fiber yarns) forming layers (hereinafter referred to as mixed fiber yarns) for both the warp, weft, or warp/weft!
! weave In the present invention, a thick raw yarn and a fine-grained false twisted yarn are used as the mixed yarn by air-jet mixing while applying overfeed to both yarns, so that the fine-grained yarn is added to the outer surface layer of the thick yarn. This is to form minute loops and increase the disturbance of the filaments on the yarn surface to form many small air layers. By forming a large number of air layers, a sufficient air holding layer is created under the attached water droplets, making it easier for the attached water droplets to roll.

Further, the reason why a thick yarn is used in the present invention is to improve the retention of the pattern when the thick yarn is wrinkled, and to prevent an extreme decrease in strength during the raising process.

The fineness of a single filament as a thick yarn is 1 denier or more, preferably 2 to 4 deniers, and the total fineness of only the thick yarn is preferably 30 to 250 deniers.

Fine fineness The single filament fineness of the raw yarn is preferably 1 denier or less, particularly 0.1 to 0.7 denier.

Fine fineness The total fineness of only the raw yarn is preferably about 20 to 150 denier.

The reason for using this fine-grained yarn is to obtain a soft feel on the surface of the product and to form an air layer due to fine irregularities on the surface of the product.

In the present invention, first, the fine yarn is false-twisted to about 1500 to 400 using thick yarn and fine yarn of synthetic long fibers.
After false twisting at 0 times/m, each overfeed is air jet mixed with the former 1 and the latter 01 or more, but by doing this, the thick fiber is in the core and the fine fiber is While intertwining with the thick fibers, the overfeed portion forms loops and protrudes to the outside, creating a bulky textured yarn of mixed fibers of different finenesses in a floating state. The total fineness of this yarn is 50
Approximately 300 denier is appropriate.

The overfeeding of each of the thick yarn and the fine false twisted yarn is done by air jet mixing at 01 or higher for the former, and for the latter, at 0 or less, the fine fineness false twisted yarn is mixed with the thick yarn. It is less likely to come to the outside, and the feeling is worse,
In addition, a sufficient air retaining layer for repelling water droplets will not be provided within the yarn. If the overfeed at the time of blending is carried out in the range of 03 to 10 for the former 1, it is even more preferable to mix the fineness yarn with the thick yarn, which is necessary to create a fabric surface on which water droplets easily roll. It comes out to the outer layer of the surface and forms minute loops, providing a sufficient air-holding layer.

Furthermore, regarding the hot water shrinkage rates of thick yarn and fine yarn, if both are the same or the former is larger than the latter, then during dyeing (third step), which will be described later, due to the shrinkage of the thick yarn, This is preferable because more fine-grained yarns form the outer layer. Even when the hot water shrinkage rates are the same, the hot water shrinkage rate of the fine-grained yarn side decreases (becomes smaller) during false twisting, so it will show the same tendency as described above.

In the present invention, - the above-mentioned mixed yarn is used for the warp, weft, or both the warp and weft, and the weaving structure at this time is a plain m weave or a diagonal weave. This weave [t
Considering the existence of an air layer necessary for easy rolling of water droplets and the workability of the emery brushing described later, the texture I is more likely to retain air between the interstices than the plain weave Mi woven fabric, which has less unevenness and a flat surface. It is preferable to have a diagonal structure that allows for. Furthermore, among the oblique text structures, the clear 1/3 of the oblique text, l/2.2/
2nd grade Aya N, ■Iso fill is desirable.

In the present invention, the fabric obtained as described above is subjected to a first step of emery raising.

For emery raising, an emery raising machine using a sand roll or a sand belt can be used. The degree of napping varies depending on the desired fluff condition, the length of the fluff, and the density of the fluff, and the tension of the fabric, the sandpaper particle size, and the number of times of fluffing should be adjusted appropriately to achieve the desired fluff condition. Just do it.

The sandpaper used is commercially available paper (7) particle size #
A value of about 150 to 450 is desirable.

By applying emery raising in this manner, a part of the minute loop fuzz possessed by the mixed fiber yarn is cut by emery raising, and short fuzz, that is, peach skin-like fuzz is formed on the surface of the fabric. This creates more air-holding layers between the fabric surface and the attached water droplets, making it easier for the water droplets to roll off.At the same time, the texture of the fabric surface also increases as the short fuzz of the fine yarns comes to the surface, making it even more flexible. This emery raising process can be carried out without scouring if the gray weaving machine is not glued or has a small amount of glue, but if emery raising is carried out on the gray machine, the glue scum etc. may be transferred to the sandpaper. If this causes uneven fluffing, it is preferable to scouring the cloth in the form of a spread cloth, drying it, and then applying emery fluffing without presetting.

In addition, it is okay to do lobed scouring with a jet dyeing machine and emery raising after drying, but if scouring wrinkles remain, uneven raising will occur, so if necessary, use a wrinkle removal set before emery raising. conduct.

The temperature at this time is as low as possible due to the process of wrinkling, which will be described later. It is usually desirable to carry out the heating at 150 to 180°C. For emery raising, it is preferable to apply wrinkles before the finishing or dyeing process, and if wrinkles are applied after the finishing process or dyeing process, it is difficult to achieve uniform napping in the areas, and the raising streaks may occur. This can easily cause the fluff to turn white, leading to a decrease in quality.

After the emery raising, the second step in the present invention is to wrinkle the fabric and heat set it. The natural appearance of the textile surface is now preferred, and for this reason natural wrinkles are added to the textile to increase its commercial value.

Wrinkling is done by making the fabric into a rope shape, packing it into bags, and heating it at 60 to 120℃ using a normal pressure or high pressure washer.
There are two methods: a method in which the material is treated in warm water for 30 to 60 minutes, a method in which the material is packed in a lobe shape in an Obermeyer and treated under the same conditions as above, and a method in which the material is wrapped in a rope shape around a shrinkable tube and then heated in a steam setter.

When the fabric is made into a rope shape, it may be further twisted to have more wrinkles, if necessary.

This wrinkling is done because the fibers that make up the fabric are mixed yarns of different fineness, so wrinkles tend to form in the fabric, and the thick yarns of the mixed yarns improve the shape retention of the wrinkled process. Durability also improves.

In the present invention, the fabric is then dyed as a third step.

When dyeing fabrics made of polyester synthetic fibers, disperse dyes are used to dye fabrics using a liquid flow type high-pressure dyeing machine.
Stain at 140°C for ~60 min, followed by reduction washing. In the case of fabrics made of polyamide synthetic fibers, jet dyeing is performed at normal pressure using acid dyes or disperse dyes.

Dyeing in a rope form provides more desirable results in terms of wrinkle retention and texture than dyeing in an expanded form.

After dyeing, washing, drying, etc., heat setting or the like is performed to fix the width if necessary, but at this time, make sure that no excessive tension is applied to the fabric in the length direction or width direction. If excessive tension is applied, the fine loops formed on the outer surface layer of the thick yarn, which are necessary for water to roll well, will be erased.
Care must be taken because many air retaining layers on the surface of the yarn are lost, the feel of the fine yarn is lost, and the effect of wrinkling is also lost. Heat set temperature is 16
A low temperature of about 0 to 180°C is desirable.

In the present invention, as the fourth step, a fluorine-based jΩ solution is applied to the fabric.

A fluorine-based water repellent is an emulsion made by dispersing in water an organic polymer having a fluorocarbon chain as a side chain and a polyacrylic acid ester polymer as a main chain. It takes advantage of the water repellency caused by the water.

If necessary, a melamine-based texture-adjusting durability improver, a texture-adjusting agent such as a softener, an antistatic agent, a penetrating agent, etc. may be added to the above-mentioned water repellent. However, if you want to particularly maintain the durability of I8 water-based products treated with fluorine-based water repellents, adding these softeners and antistatic agents can often cause a decline in performance, so we conducted preliminary tests in advance. Above all, it is desirable to add the minimum amount within the allowable range.

The water repellent is applied by a conventional pad method or coating method, and after drying at 100 to 120°C for 1 to 3 minutes, heat treatment is performed at 160 to 180°C for 1 to 3 minutes. At this time as well, it is important to avoid applying excessive tension in the length and width directions of the fabric.

The present invention has the above configuration, and by processing according to the method of the present invention, it is possible to produce a water-repellent raised fabric having wrinkles and a surface on which water droplets easily roll.

(Function) In the method of the present invention, weaving is carried out using a specific yarn consisting of thick and fine yarns of long synthetic fibers and having countless fine loops on the surface, and emery raising is applied to the surface of the fabric. By applying a fluorine-based 1Ω water agent to dyed fabrics that form short fluffs and increase their commercial value through wrinkles, it is possible to apply a fluorine-based 1Ω liquid agent to the dyed fabrics, which creates short fluffs and increases the commercial value by wrinkles. An air retaining layer is provided, so that even when water droplets fall on the fabric surface, a sufficient air layer is formed between the surface and the water droplets, and this air layer, combined with the presence of the fluorine-based water repellent, This makes it easier for water droplets to roll on the surface, and prevents water droplets from adhering even when a force such as rubbing is applied.

Furthermore, the wrinkles formed in the fabric are held by the bending holding power of the thick fibers that constitute the inner layer of the yarn.

(Example) Next, the present invention will be explained in more detail with reference to Examples. Each performance of the fabric in the Example was measured by the following method. Regarding washing durability, JIS L-0
After washing, tumble dry using the 103 method in 217 for one wash (1 wash), and repeat this 10 times (1 wash).
0 washing) to conduct a durability test.

(11) Gently drop 0.2 cc of water onto the sample to be measured mounted on a rolling flat plate to form 3 water droplets, then tilt the flat plate at a constant speed and drop 2 of the 3 water droplets. The inclination angle with respect to the horizontal plane when the droplet starts moving was measured.The smaller the inclination angle, the easier the water droplet will roll.

(2) Water repellency JTSL-1092 (spray method) (3
) A sensory test was conducted using hand handling, and the following three-level evaluation was performed.

○: Very good △: Average ×: Poor (4) Bending resistance KES method (The larger the value, the harder it tends to be.) (5) f'J retention Sample after processing and sample after 10 washes were compared by visual judgment and evaluated on the following three levels.

○: No change at all, △: Change, ×: Almost no wrinkles Example 1 Polyester multifilament yarn 50d/24r (thick yarn with a single yarn fineness of about 2.1d) and polyester multifilament yarn 55d/168f (Single yarn fineness approx. 0,
After false twisting and bulking the fine yarn (3,000 false twists/m), the overfeed was 2% for the former and 10% for the latter, and the yarn speed was 200 m. Air jet blending was carried out under the conditions of /min.

The processed yarn after air-jet blending has a total fineness of approximately 105 deniers, and its form is such that the fine-grained false twisted yarn is wrapped around the outer layer of the thick-gained raw yarn. The twisted yarn was in a wavy loop state and exhibited minute irregularities.

This mixed fiber yarn is used for the warp and weft, and the weaving density is 16 for the warp.
4/inch, weft 89/inch, 2/2 of the work width 160cm
Weaved twill.

Next, the obtained gray cloth was transferred in the form of a spread cloth and subjected to normal relaxing scouring in an alkaline bath containing a nonionic surfactant, followed by dehydration and drying in a net conveyor type dryer.

Here, as the first step, an emery raising machine was used in which sandpaper with a grain size of No. 400 (manufactured by Riken Two-Tone Co., Ltd.) was wrapped around the surfaces of three rolls each having a diameter of 2001 mm, and the number of roll rotations was 1300 [? Emery raising was performed by lightly contacting the fabric with PM to obtain peach skin-like short fluff. Most of this fluff was a fine-grained false-twisted yarn, and the fine-grained false-twisted yarn provided even more flexibility and good texture.

Next, the obtained raised fabric was wrinkled under the following conditions.

First, the fabric is passed through a circular slit with an inner diameter of 10 cm to form a rope, and then wrapped around a retractable stainless steel mesh tube while being twisted about 3 times per meter.
Put this in a steam setter and heat it at 120°C for 30 minutes.
High-pressure saturated air treatment was performed for 1 minute.

After the wrinkle processing, the penny item was taken out of the steam setter, rapidly cooled in water, untwisted, and spread out to form a cloth.We were able to obtain natural wrinkles that were suitable for improving the appearance and product value. 2nd step).

Next, using a liquid jet dyeing machine, dye at 130° with the following recipe 1.
Staining was performed for C130 minutes and stained blue (third step).

Prescription 1 Dianics Left U-3E
O, 14χ o, w, f.

(Manufactured by Mitsubishi Chemical Corporation, disperse dye) Dianics Blue U-S E
2.8 χ o, w, f.

(Same as above) Dianics Violet 5 RS E
O,75χ o, w, f.

(Same as above) Sunsalt RZ-80.5 g/l (manufactured by Nicca Chemical Industry ■, dispersion leveling agent) Formic acid (98%) 0.1 cc/β Here, after normal reduction washing, dehydration, and drying, 2 Using the padder of this roll mangle, apply a fluorine-based water repellent treatment liquid of the following formulation 2 uniformly at a squeezing rate of 60% and a cloth speed of 10 m/min, and heat to 110°C using a net conveyor type dryer. After drying, the width of 140cm is maintained so that the wrinkles do not disappear.
Heat setting was performed for 1 minute at a temperature of 170° C. with an overfeed rate of 3% (fourth step).

Prescription 2 Asahi Guard AC-71080g /1 (Fluorine-based tΩ water emulsion manufactured by Asahi Glass) Sumitex Resin M
-31g//! (Made by Sumitomo Chemical Co., Ltd.) Sumitex Accelerator-ACX (M
-3 JWi medium) 1 g/ /1 Poron M1
1g/l (Shin-Etsu Chemical Co., Ltd. silicone-based texture modifier) Catalyst 02 (MR catalyst)
0.1g/j! Isopropyl alcohol (penetrating agent) 30 g/E The performance of the obtained fabric of the present invention was measured and evaluated, and the results are shown in Table 1.

No. table there were.

(Effects of the Invention) The present invention forms a woven fabric using a synthetic fiber mixed bulky textured yarn in which a fine-grained false twisted yarn is arranged on the outer surface layer of a thick-gained yarn, and emery raising, wrinkle processing, dyeing processing, According to the present invention, which has a structure in which fluorine-based ffl liquid agents are sequentially applied, it is possible to obtain a water-repellent fabric having a durable surface on which water droplets easily roll and also having durable wrinkles. Can be done.

When measuring the rolling properties of water droplets on various commercially available water-repellent fabrics in the same way as in this example, it was found that those with normal water repellency were 1.
0 to 15 degrees, and highly water-repellent ones are on the order of 5 to 7 degrees. Taking this into account, as is clear from Table 1, the fabrics of the present invention have excellent water droplet rolling properties. You can see that This is due to the combination of peach skin-like short fuzz on the surface of the fabric and the effect of the fluorine-based FFL water agent.
This is the result of the formation of a surface on which water droplets can easily roll.

Claims (1)

[Claims] (1) Using thick yarn and fine yarn of long synthetic fibers, after false twisting the fine yarn, air jet blend fibers with overfeed of 1 for the former and 1.01 or more for the latter. By doing so, a fabric is woven using bulky textured yarns of synthetic long fibers with a total fineness of 50 to 300 deniers, in which fine-grained yarns form the surface outer layer, as the warp and weft, or both the warp and the weft. Then, a first step of emery raising, a second step of creasing the fabric, a third step of dyeing the fabric, and a fourth step of applying a fluorine-based water repellent to the fabric. 1. A method for producing a wrinkled water-repellent raised fabric, which comprises performing a process.