JPH0441772A - Processing of knitted and woven cloth having slight wet feeling - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of application in the M industry) The present invention relates to a method for processing knitted and woven fabrics in which the back side of the fabric that comes into contact with the skin does not feel wet even if the fabric sweats a lot.

(Prior Art) Conventionally, one of the post-processing methods for knitting and fabrics that minimizes the feeling of wetness on the back side of the fabric that comes into contact with the skin even when a large amount of sweat is sweated is known as a method of fabric processing as disclosed in Japanese Patent Application Laid-Open No. 58-22084. There is a method of applying a water repellent to the entire back surface.

However, with this method, since the back surface does not absorb sweat, the sweat remains on the skin and the feeling of wetness does not decrease. Furthermore, a method of partially applying a water repellent to the back side of a fabric is known. However, in these materials, the arrangement of the non-water repellent portion and the water repellent portion provided with a water repellent agent is not appropriate, and the effect of reducing the wet feeling is small, and there is room for further improvement.

(Problems to be Solved by the Invention) The present invention appropriately arranges a water repellent agent on one side of the skin side of a knitted fabric that exhibits water absorption, so as not to significantly impair the property of immediately absorbing water such as sweat from the back side. Another object of the present invention is to provide a partial water-repellent finishing method for one side of a fabric, which reduces the feeling of wetness by diffusing the absorbed water into the intermediate layer and surface layer and reducing the amount of water remaining on the back side.

(Means for Solving the Problems) That is, the present invention partially coats one side of a knitted fabric made of fibers that absorb water and/or diffuses water on the fiber surface.
It is characterized by applying a mixture of emulsilon, which is composed of at least water, an organic solvent, and an emulsifier, and a water-repellent finishing agent, and then drying and heat-treating the mixture to control the width or diameter of the non-water-repellent part to 1.0 W or less. , relates to a method for processing knitted and woven fabrics with less wet feeling.

The knitted fabric that absorbs and/or diffuses water on the fiber surface of the present invention may be of any type, but is preferably made of cotton.
Hydrophilic fibers such as descaled wool and rayon are recommended. In addition, in order to provide an effect that reduces the feeling of stuffiness when gaseous sweat and perspiration are not used,
Multi-layered knitted fabrics such as those disclosed in Publication No. 7 and JP-A-30-215
Multi-layered knitted fabrics such as No. 831 and JP-A-80-21
A knitted or woven fabric made of multilayered yarns such as that disclosed in Japanese Patent No. 5831 is more desirable.

In the present invention, organic solvents include chlorinated hydrocarbon solvents such as dichloroethane, trichloroethane, and perchloroethylene, fluorinated hydrocarbon solvents such as trichlorotrifluoroethane, and petroleum solvents such as mineral turpentine oil. A petroleum-based solvent such as turpentine oil is preferable. In addition, the water repellent used in the present invention includes fluorine-based,
There are paraffin-based, zircon-based, alkylamide-based, and silicone-based water repellents, and fluorine-based water repellents with particularly strong water repellency are desirable.

There is a method of applying a water repellent using NO emulsion glue, which is made by dissolving a sizing agent such as sodium alginate in water, without using organic solvents or emulsifiers, but with this method, the adhesion of the water repellent is poor. Washing durability is low.

Therefore, it is not suitable for applications that require washing durability, such as sportswear and underwear.

Emma/14 dione is prepared by first diluting a suitable emulsifier with water and gradually adding an organic solvent while stirring with a homomixer. The viscosity of an emulsion tends to decrease by adding water and increase by adding a solvent, so it can be easily controlled;
00cps (B type viscometer, rotor 6z2Orpm)
is desirable. If the viscosity is less than 5000 cps, wetting will spread immediately after application and it will be difficult to apply the film to approximately the same size as the design value on the film, and it will not penetrate all the way through the thickness of the We fabric to the opposite surface. Sometimes I end up doing it. On the other hand, if the viscosity exceeds 15,000 cps, a phenomenon occurs in which emulsilon is not applied to the area to which it should be applied.

5 to 20% of a water repellent is evenly mixed with the above Emulsilon and applied to knitted or woven fabrics by a method similar to screen printing. Screen printing may be either rotary screen printing or flat screen printing. The screen is
Use 70 to 150 mesh, which makes it easy to adjust the amount of the emulsilon and water repellent mixture applied to the textiles.
In particular, a mesh size of 110 to 130 is desirable.

A knitted or woven fabric with a small wet feeling due to partial water-repellent treatment on the back side of the fabric can be obtained by controlling the non-water-repellent portion to a small size. In addition, in order not to impair water absorption too much, it is necessary that the water-repellent portion is not too large. Therefore, when the non-applied areas of the mixture of emulsilon and water repellent are made into a grid pattern, the line width of the areas corresponding to the non-applied areas on the film is set to 0.
．． 1~1.1m+=, preferably 0.2~0.7m-, and the spacing is 0.7~2.6m, preferably 0.9~2
゜When designing with 2 necks 1 and making it into a line, the line width should be 0.2 to 0.
．． 9-m1 is preferably 0.3 to 0.7+=1, and the interval is 0.5 to 2.4. It is preferably designed to have a diameter of 0.8 to 2゜㎜, and if it is circular, the diameter should be 0.25 to 1゜㎜.
ls desirably 0.4 to 0.8. , and the interval is 0.
It is designed to be 6 to 2.3 mm, preferably 0.9 to 2.01 mm. The width, spacing, and diameter referred to here are shown in FIG. still,
The area ratio of the water-absorbing part to the water-repellent part is 20-50:50-80, preferably 25-50:50-75, and more preferably 30-50:
50-70 is good.

The above emulsion and water repellent are applied to the woven or knitted fabric through a screen made of the above film.

At this time, in order to give the knitted/woven fabric a pattern with a size close to the film design value, printing is further performed with an appropriate pressure using a metal squeegee and at an appropriate printing speed.

The printing speed is preferably 10 to 60 m/min.

After that, after drying, it is heated at 110 to 190℃ for 10 minutes to 15 minutes.
Heat treat for seconds. After removing the emulsifier by soaping, the fabric is immersed in an aqueous solution of an anionic, nonionic, or amphoteric fabric softener, and squeezed to dry with a mangle.

By the above processing method, one side of the fabric is partially water-repellent and the width or diameter of the non-water-repellent part is 1.0.
It is possible to obtain a knitted or woven fabric whose thickness is controlled to be 1 mm or less, preferably 0.8 mm or less.

(Example) Wet feeling by sensory test: Five cotton 40'S smooth knitted fabrics with a moisture content of 8% (no water added) to 200% were evaluated as wet feeling grades 1 to 5 (5th grade is no wet feeling) 1.5g of water/70clC moisture content 12 for the samples of Examples and Comparative Examples.
0%), the forearms of three subjects were graded, and the average value was calculated.

The test method for water repellency is isopropyl alcohol (IPA).
) and water in 5 levels, drop 5 drops of the test solution, and judge the grade based on whether 3 or more droplets remain after 20 seconds (grades 1 to 5, grade 5 indicates water repellency). high).

Examples 1 to 6 and Comparative Examples 1 to 4 A 100% cotton 80'528G smooth knitted mercerized finished knitted fabric (unprocessed product Comparative Example 1) was used. 6 parts by weight of WS Emulsi 9062 as an emulsifier and 64 parts by weight of water were mixed, and 30 parts of mineral turpentine (oil) was gradually added to the mixture with strong stirring using a homomixer to obtain an emulsion. 70 parts of this emulsion and Rikenparan FGX-
An aqueous solution of 15 parts of No. 38 and 15 parts of water was added to form a homogeneous emulsion using a homomixer. Viscosity 5500cps (B
type viscometer). The emulsion was applied using a rotary screen (100 mesh) so that uncoated areas remained in the form of grids, lines, and circles. The squeegee used at this time was Meta Squeegee RDIV (thickness: 0.3 nm), and the printing speed was 35 m/min. Thereafter, it was dried and heat treated at 180°C for 45 seconds.

As shown in Table 1, Examples 1 to 6 all had a smaller wet feeling than the comparative example.

Table 1 Example 7 and Comparative Example 5 Inner layer is polyester stable 0.7D1 Intermediate layer is polyester stable 0.7D, polyester filament 30D/18f and cotton, surface layer is made of cotton Multilayer structure yarn 5
A smooth knitted fabric of 0'S was used. In Example 7, mineral turpentine 300g/IN WS emulsion 9 was applied on one side.
082 (emulsifier) and 640 g/l of water. 70 parts by weight of gold rights, 15 parts by weight of Rikenbaran FQX-38,
A solution containing 15 parts by weight of water (viscosity 6000 cps) was applied using a rotary screen. Then 160℃
Heat treatment was performed for ×1 minute. Comparative Example 5 includes 30 parts by weight of a mixture of sodium alginate and Primo gum in a ratio of 2:5 on one side;
Rikenbaran FQX-38 (water repellent) 10 parts by weight, 6 parts water
A water repellent-containing solution containing 0 parts by weight (viscosity 6000 cps) was applied using a rotary screen. after that,
Heat treatment was performed at 160°C for 1 minute.

As shown in Table 2, the water repellency of Example 7 does not deteriorate even after repeated washing, and the water repellency of Comparative Example does not deteriorate.

It is known that if the water repellency is level 1, the effect of reducing the feeling of wetness is sufficient.

Table 2 Water repellency evaluation (effects of the invention) By the processing method of the present invention, a water repellent part is arranged in an appropriate size on one side of a knitted fabric made of fibers that absorb and/or diffuse water on the fiber surface. A fabric is obtained.

Even if water such as sweat is applied to the surface on which the water-repellent portion is placed, the water-absorbing portion quickly absorbs the water, and the absorbed water is transferred or diffused to the intermediate layer and surface layer that are continuous with the water-absorbing portion. Therefore, the amount of water remaining on the surface where the water-repellent portion is arranged is reduced.

By making clothes using the knitting and woven fabrics according to the processing method of the present invention with the side on which the water-repellent portion is placed facing the skin, it is possible to obtain clothes that do not feel wet even when sweating a lot.

[Brief explanation of drawings]

FIG. 1 shows a schematic diagram of a film in which emulsion-uncoated areas remain in a lattice-like, linear-like, and circular-like form. 1: Grid film 2: Line film 3: Circular film 4: Width of non-coated area 5: Interval 6: Diameter of non-coated area

Claims (1)

[Claims] A mixture of an emulsion consisting of at least water, an organic solvent, an emulsifier, and a water repellent agent is partially applied to one side of a knitted fabric made of fibers that absorb and/or diffuse water on the fiber surface, and then dried and A method for processing knitted and woven fabrics with less wet feeling, characterized by controlling the width or diameter of a non-water repellent part to 1.0 mm or less by heat treatment.