JPH0219572A - Production of water-repellent raised fabric with wrinkle - Google Patents

Abstract

PURPOSE:To obtain a fabric of sophisticated image having durable surface with water droplets easy to roll thereon and durable wrinkles by weaving using specific bulky textured yarn of synthetic filament mixed fiber differing in fineness from one another followed by raising, wrinkle-affording processing, dyeing and water repellent finishing. CONSTITUTION:Using large-denier (2-4de) and small-denier (<=1de) synthetic filaments such as of polyester fiber, an overfeed is made at the ratio of the latter to the former = >=1.01:1 to carry out false twisting followed by air-jet filament combination to produce bulky textured yarn 50-300de in total fineness with the small-denier yarn forming the surface outer layer part. This textured yarn is then woven and the resultant fabric is put to emery raising followed by wrinkle-affording processing, dyeing finishing and applying a fluorine-based water repellent, thus obtaining the objective water-repellent fabric of sophisticated image with wrinkles, having durable surface with water droplets easy to roll thereon.

Description

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

Recently, there have been many 1θ water-processed fabrics that have been added to IΩ water-processed fabrics with a wrinkled finish to add so-called sensibility, but consumers are also demanding more luxurious products with a raised finish. ing.

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 (
None had θ aqueous properties.

Even with i8 water-based processed fabrics, which are products with added sensibilities, the wrinkles will disappear after repeated washing, and even if the 18 water-based fabric is rated 100 by the JIS L-1092 spray method, these Spray water droplets onto the water-treated fabric and gently rub it with the palm of your hand.
This method has the disadvantage that water droplets adhere to the surface of the fabric.

(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 water-repellent raised fabric having 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 yarn and fine yarn of long synthetic fibers, and after false twisting the former with an overfeed of 1 and the latter with an overfeed of 1.01 or more, air jet blending is performed. The total fineness is 5, in which the fine fineness yarn forms the outer surface layer.
The first step is to weave a fabric using 0 to 300 denier long synthetic fiber mixed fiber bulky yarn for warp, weft, or warp, then emery raising, and to wrinkle the fabric. a second step of performing the dyeing process, a third step of dyeing the fabric, and a fourth step of applying a fluorine-based in-water agent to the fabric.
The gist of the present invention is a method for producing a wrinkled ↑θ aqueous raised fabric, which is characterized by subjecting it to a process.

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 former is 1 to overfeed 1.01 or more of the latter, the air jet mixed fiber is Synthetic long fibers with a total fineness of 50 to 300 deniers, in which fine-grained fibers form the outer surface layer (hereinafter referred to as mixed yarns), are used as warp, weft, or both warp and weft. It is used to weave textiles. In the present invention, a thick yarn and a fine yarn are used as the mixed yarn by overfeeding each yarn, false twisting, and air jet blending to form the outer surface layer of the thick yarn. This is to form microscopic loops of fine-grained yarn in the yarn section, increase the disturbance of the filaments on the yarn surface, and 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, next, using thick and fine yarns of synthetic long fibers, each overfeed is false-twisted at a ratio of 1.01 or more of the former to 1.01 of the latter, and then the fibers are air-jet mixed. By doing this, the thick fiber is intertwined with the core, the fine fiber is intertwined with the thick fiber, and the overfeed portion forms a loop and is floating on the outside, making it bulky. It becomes a thread. The total freshness of this thread is 50~
Approximately 300 denier is appropriate.

The overfeed of thick yarn and fine yarn is 1 for the former and 1.01 or more for the latter, and then air jet mixed fibers are used. This is because the fibers are less likely to be on the outside of the thick yarn, resulting in a poor feel, and a sufficient air-holding layer to repel water droplets within the yarn is not provided.False twisting The overfeed is 1.03 for the former and 1.03 for the latter.
It is even more preferable to do this in the range of 1.10 to 1.10, so that the fine yarn, which is necessary to create a fabric surface on which water droplets can easily roll, comes out to the outer layer of the surface of the thick yarn, forming minute loops, and forming a sufficient An air-holding layer is created.

In the present invention, the above-mentioned mixed fiber yarn is a warp, a weft, or a warp.
Both wefts are used for weaving, and the weaving structure at this time is
Weaving is done in plain weave or diagonal weave. Considering the existence of an air layer necessary for easy rolling of water droplets and the workability of emery raising described later, this textured weave has less unevenness and can retain air between the textures than a plain weave texture with a flat surface. It is preferable to have an oblique texture that can be used. Among the diagonal textures, fills with twill textures such as 1/3.1/2.2/2 with clear diagonal textures are 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 sandpaper with a grain size of #15.
A value of about 0 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 provides more air retention layer between the fabric surface and the attached water droplets, making it easier for the water droplets to roll off. At the same time, the short fuzz of the fine yarns appears on the surface of the fabric, further increasing its flexibility. This emery raising can be done without scouring if the gray weaving machine is not glued or has a small amount of glue attached, but when emery raising is performed on the gray weaving machine, the sandpaper gets stuck with glue scum and the raised unevenness occurs. When this occurs, it is preferable to perform emery raising without presetting after scouring and drying in the form of a spread cloth.

In addition, it is okay to do rope-like scouring with a jet dyeing machine and emery raising after drying, but if scouring remains, 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 in view of the processing involved in the wrinkling process described below. It is usually desirable to carry out the heating at 150 to 180°C. For emery napping, it is preferable to first brush the wrinkles before finishing or dyeing, and if the wrinkles are done after finishing the finishing or dyeing process, it is difficult to achieve uniform napping in the wrinkled areas, and the napping 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 hot water for 30 to 60 minutes, a method in which the material is packed in a rope 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 cylinder and heated in a steam setter.

When the fabric is made into a rope shape, it may be further twisted to create 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.
Staining is carried out at 140° C. for 10-60 minutes, 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 corrode, are erased, and the numerous air-holding layers on the surface of the yarn disappear. In addition, care must be taken because the texture of fine yarns will be lost and the effect of wrinkling will also be 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 1B 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, melamine-based texture regulators, texture regulators such as fabric softeners, antistatic agents, penetrants, etc. may be added to the above 18 liquid preparations.However,
If you want to particularly maintain the durability of the I8 water-based fluorine-based 1a aqueous treatment, the addition of these softeners and antistatic agents will often cause performance deterioration, so please conduct preliminary tests in advance to determine the permissible properties. It is desirable to add the minimum amount within the 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 an aqueous 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 water repellent to dyed fabrics that form short fuzz and increase their commercial value through wrinkles, it is effective not only between the short fuzz on the surface of the fabric, but also within and between the yarns. Even if a water droplet is dropped on the surface of the fabric, a sufficient air layer is formed between the surface and the water droplet, and this air layer is 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.

Further, 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.

(1) Rolling properties of water droplets Gently drop 0.2 cc of water onto the sample to be measured mounted on a flat plate to form 3 water droplets, then tilt the flat plate at a constant speed to measure the amount of water droplets among the 3 water droplets. The inclination angle with respect to the horizontal plane when the two drops started moving was measured. The smaller the angle of inclination, the easier it is for water droplets to roll.

<21 f8 water level JISL-1092 (spray method)
(3) A sensory test using hand handling was conducted, and the following three-level evaluation was performed.

O: Very good △: Traditional ×: Poor (4) Bending resistance KES method (The larger the value, the harder it tends to be.) (5) Wrinkle retention Sample after processing and sample after 10 washes. Comparisons were made by visual judgment, and the following three-level evaluation was performed.

○: Almost no change, △: Changed, ×: Almost no wrinkles Example 1 Polyester multifilament yarn 50 d/24
f (thick yarn with a single yarn fineness of about 2.1d) and polyester multifilament yarn 55d/168f CJLfd
False twist bulking processing (fine twist yarn with a degree of about 0.3d)
When performing false twisting (number of false twists: 2,400 times/m), false twist bulking was performed under the conditions of overfeed of 1.03 for the former, and then air jet blending.

The processed yarn after air jet blending has a T8 fineness of approximately 105
Denier, the fibers were mixed in such a way that the fine yarns were wrapped around the outer layer of the thick yarns, and the fine yarns were wavy loops and had minute irregularities.

This mixed fiber yarn is used for the warp and weft, and the weaving density is 16 for the warp.
4 wood/inch, weft 89 wood/inch, woven width 160 Cffi 2
/2 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.

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 five rolls each having a diameter of 200 mm. Emery raising was performed by lightly contacting the fabric with the cloth to obtain peach skin-like short fluff. Most of this fluff was fine yarn, and the fine yarn gave it a more flexible and good feel.

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

First, the woven fabric is passed through a circular slit with an inner diameter of 10cm+ to form a rope, then twisted around a retractable stainless steel mesh tube while twisting about 3 times per meter, and then placed in a steam setter. 30 at 120℃
High pressure saturated steam treatment was performed for 1 minute.

After the wrinkle treatment, the fabric was taken out of the steam setter and quenched with water, then untwisted and spread out.
It was possible to obtain natural wrinkles suitable for improving the appearance and increasing the product value (second step).

Next, using a liquid jet dyeing machine, dye at 130°C using the following recipe 1.
, Staining was carried out for 30 minutes and dyed blue (third step).

Prescription 1 Dianics Left U-S E
O, 14Z o, w, f.

(Manufactured by Mitsubishi Chemical Industries (!η, disperse dye) Dianics Blue U-3E
2.8 χ o, w, f.

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

(Same as above) Sunsolt RZ-80, 5g/l (manufactured by Roka Kagaku Kogyo Gl'Jl, dispersion leveling agent) Formic acid (98
%) 0.1cc/j! After normal reduction cleaning, dehydration, and drying, use a two-roll mangle padder to squeeze out the fluorine-based 18 water treatment solution with the following formulation 2 at a squeezing rate of 6.
0%, uniformly applied at a cloth speed of 10 m for 7 minutes, dried at 110°C using a net conveyor type dryer, and then set to a width of 140 cm and an overfeed rate of 3% to the extent that wrinkles do not disappear. Heat setting was performed at a temperature of 170° C. for 1 minute (fourth step).

Prescription 2 Asahi Guard AG-71080g /1 (Fluorine-based water repellent emulsion manufactured by Asahi Glass) Sumitex Resin M-
31 g/l (Sumitomo Chemical's melamine-based texture adjustment durability improver) Sumitex Accela Radar ACX (M medium for M 3) 1 g/i Boron MR 1 g/l (Shin-Etsu Chemical a@C'J: I :/system texture modifier) Catalyst OZ (MR catalyst) 0.1g/j
! Isopropyl alcohol (penetrant) 30g/j! The performance of the obtained woven fabric of the present invention was measured and evaluated, and the results are shown in Table 1.

Table 1: When measuring the rolling properties of water droplets on various commercially available ↑θ water-based fabrics in the same manner as in this example, the rolling properties of water droplets were measured at 10 to 15 degrees for normal i8 water-based fabrics, and 5 to 7 degrees for highly water-repellent fabrics. Taking this into consideration, as is clear from Table 1, it can be seen that the fabric of the present invention has excellent water droplet rolling properties. This is the result of the combination of the peach skin-like short fuzz on the surface of the fabric and the effect of the fluorine-based IQ solution to form a surface on which water droplets easily roll.

Furthermore, the fabric of the present invention had very good wrinkle retention.

(Effects of the Invention) The present invention forms a fabric using bulky textured synthetic fiber blend yarn in which fine-grained yarns are arranged on the outer surface layer of thick-fiber yarns. According to the present invention having a structure in which system 1B water agents are sequentially applied, it is possible to obtain a ↑Ω aqueous fabric having a durable surface on which water droplets can easily roll and also having durable wrinkles. I can do it.

Claims (1)

[Claims] (1) Using thick yarn and fine yarn of synthetic long fibers, each overfeed is 1 for the former and 1 for the latter.
After false twisting at 01 or higher, the bulky textured yarn is mixed with air jet to form a surface outer layer of fine-grained yarns, and has a total fineness of 50 to 300 deniers.
A first step of weaving a woven fabric using both the weft or warp and weft, then emery raising, a second step of creasing the woven fabric, followed by a third step of dyeing the woven fabric, and A method for producing a wrinkled water-repellent raised fabric, which comprises subjecting the fabric to a fourth step of applying a fluorine-based water repellent.