JPH04308272A - Antistatic piled cloth - Google Patents

Abstract

PURPOSE:To obtain an antistatic piled cloth having delicate and colored glossy relief pattern by applying a specific metallic powder to a part of a piled fluffy surface of a cloth having pile fluffs of a synthetic fiber and irradiating the cloth with heat ray. CONSTITUTION:A metallic powder having a heat conductivity of >=0.03cal/ cm.sec.deg is printed e.g. by mixing with a printing paste to a piled surface of a fluffy cloth having pile fluffs of thermoplastic synthetic fiber. The printed cloth is dried and irradiated with infrared ray to form a recess by the thermal energy accumulated in the metallic powder and obtain the objective antistatic fluffy cloth having excellent relief pattern with sharp boundary. Since the metallic powder has colored gloss corresponding to the kind of the metal, a colorful and unique relief pattern can be produced.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to clothing fabrics, bag fabrics,
The present invention relates to a coated fabric used for vehicle interior fabrics, chair upholstery, etc., and more specifically, it relates to an antistatic coated fabric having an uneven pattern on the pile fluff surface.

0002

[Prior Art] Conventional techniques for imparting antistatic properties to coated fabrics include mixing conductive fibers with pile fluff fibers or base fabrics, or applying a backing agent mixed with a conductive agent to the back side. It is being

[0003] Also, as a conventional technique for forming an uneven pattern on a covered fabric, there is a method in which the uneven pattern is heat-set by heating and pressing the pile fluff surface with an embossing roll, or a method is used in which a degreasing agent is imprinted on the pile fluff surface. A method is adopted in which a part of the pile fluff fibers are removed.

0004

[Problems to be Solved by the Invention] Stainless steel fibers and carbon fibers are used as conductive fibers, but since they are gray or blackish, their mixed use impairs the aesthetic appearance of the pile fluff surface, and the base fabric Making the back surface conductive is not a factor in improving the aesthetic appearance of the pile fluff surface.

Regarding the technique of forming an uneven pattern on a covered fabric, in the method using an embossing roll, the entire pile surface receives strong radiant heat from the embossing roll heated to a high temperature, so a delicate uneven pattern with thin lines is created. Moreover, even with the method of removing the touch, the printed touch remover oozes out into the surrounding area, so a delicate uneven pattern with sharp edges cannot be formed.

Above all, with the embossing roll method, it is difficult to color the concave portions of the concavo-convex pattern drawn, and
In the stripping method, it is possible to partially color-code the recesses by adding dyes or color stripping agents to the stripping agent, but the types of dyes and color stripping agents may differ depending on the type of pile fluff fiber. In particular, since polyolefin fibers do not have dyeability, it is not possible to create a variety of uneven patterns.

[0007]

[Means for Solving the Problems] Therefore, the present invention aims to impart antistatic properties to the pile fluff surface, and at the same time to create a colorfully colored uneven pattern with sharp edges and a variety of colors on the pile fluff surface. It is something to do.

That is, the present invention provides a coated fabric having pile fluff made of thermoplastic synthetic fibers, in which a part of the pile fluff surface has a thermal conductivity of 0.03 cal/cm·sec·d.
eg or more is attached, and the pile fluff fibers are fused to the metallic powder at the place where the metallic powder is attached, and the pile fluff at the part where the metallic powder is attached is like a metal powder. It is characterized by being shorter than the pile fluff in the part to which it is not attached.

[0009] When thermoplastic synthetic fibers are heated and melted, they undergo thermal contraction prior to that, so the pile fluff fibers fused to the metallic powder shrink during the fusion,
The pile length becomes shorter than that of the pile fluff fibers in other areas to which metallic powder is not attached, forming a concave portion, which creates an uneven pattern on the pile fluff surface. Since the metallic powder has a unique lustrous color depending on the type of metal material, it is possible to make the uneven pattern colorful by using various metallic powders.

[0010] The metallic powder contains aluminum (thermal conductivity;
0.54 cal/cm・sec・deg), copper (thermal conductivity; 0.94 cal/cm・sec・deg), nickel (thermal conductivity; 0.20 cal/cm・sec・deg)
), zinc (thermal conductivity; 0.25 cal/cm・sec・
deg), brass (alloy) (thermal conductivity; 0.26 cal/
Thermal conductivity (cm/sec/deg) is 0.20 cal
/cm・sec・deg or more and the particle size is 100 μm or less,
Preferably, one with a diameter of 50 μm or less is used.

[0011] In order to attach the metallic powder to the pile fluff surface in a pattern, it is sufficient to mix it with a binder (printing paste) and print it using a printing machine. The pile fluff fibers are fused to the metallic powder by the thermal energy accumulated in the powder.

Therefore, the infrared rays do not cause the pile fluff fibers to be directly thermally melted, but are irradiated instantaneously to the extent that the metallic powder stores the necessary thermal energy to induce thermal melting of the pile fluff fibers. do.

[0013] The difference in pile length between the pile fluff in the part to which the metal powder has adhered and the pile fluff in the part to which it has not adhered does not have to be as large as shown in the left, and the difference is very small, about 0.1 m. It's okay.

[0014] This is because, in a coated fabric with a uniform pile fluff length and a smooth pile fluff surface, even footprints made on the pile fluff surface by stepping on it can be identified as footmarks. This is because recesses to which metal powder, which is different from fibers, has adhered can be clearly identified.

Therefore, for example, when the main wavelength of infrared light is 1μ
When applying near-infrared rays of around m, at a close distance of about 2 to 10 cm from the near-infrared lamp, the
When a coated fabric is passed under a near-infrared lamp so that it is irradiated for about seconds, the thermal energy of the metallic powder that is instantly accumulated will instantly destroy the minute spots on the pile fluff fibers where the metallic powder is attached. It melts and adheres to the metallic powder, and at the same time, heat shrinks at that location, making it possible to achieve the desired purpose.

[0016] As the coated fabric, a woven or knitted moquette pile fabric, a tufted tufted pile fabric, a raised fabric, an electrostatic flocked fabric, etc. are used.
The type of pile fluff fiber is not limited as long as it is a thermoplastic synthetic fiber, and in addition to dyeable fibers such as polyester fiber, nylon, and acrylic fiber, polyolefin fibers that do not have dyeability can also be used. .

[0017]

Effects of the Invention Since the uneven pattern on the pile fluff surface in the present invention is depicted as described above, the fusion of the pile fluff fibers and the metallic powder is achieved by irradiating the metallic powder with near infrared rays and generating heat. This can be done instantly via

Since the metallic powder is a fine powder, the amount of heat stored in this metallic powder is much smaller than that of the heating embossing roll, and therefore the heat shrinkage occurs over the entire pile fluff surface. It is not a solid material, but a very small amount that heat-melts and heat-shrinks a small portion of the pile fluff fibers that are in contact with it. When attached, a delicate and sharp uneven pattern similar to the printed pattern is formed.

Metallic powder has a unique color depending on the type of metal it is made of, and this color is not lost by heating, so printing paste containing various metallic powders is printed to create uneven patterns. can be made colorful. Therefore, the type of metallic powder used in the present invention is not limited by the type of pile fluff fiber.

[0020] As the binder for attaching the metallic powder, it is recommended to use a binder that is water-insoluble and has heat fusibility in order to improve the fusibility of the pile fluff fibers. Even if this is not done, the metallic powder will be surrounded by the surrounding long pile fluff fibers and will be present in the recesses of the pile fluff surface where it cannot be rubbed directly, making it difficult for it to fall off. It is preferable to apply the imprint to the pile fluff surface as a dotted or lined pattern with a width of 0.5 mm or less.

Since the metallic powder is made of metal, it has conductivity and prevents the generation of static electricity on the hairy surface of the pile. It is convenient for use as interior material for vehicles, interior materials for electrical calculation rooms, etc.

As described above, according to the present invention, the coated fabric is made anti-static, and at the same time, a delicate and colorful uneven pattern with sharp edges is drawn on the pile fluff surface, which has anti-static properties. At the same time, a new woven fabric was obtained in terms of design.
Therefore, the present invention is extremely practical.

Claims (2)

[Claims] Claim 1: A part of the pile fluff surface of a coated fabric having pile fluff made of thermoplastic synthetic fibers has a thermal conductivity of 0.
．． 03cal/cm・sec・deg or more of metallic powder is attached, the pile fluff fibers are fused to the metallic powder at the location where the metallic powder is attached, and the metallic powder is attached to the part An antistatic coated fabric characterized in that the pile fluff of the area is shorter than the pile fluff of the part to which metal powder is not attached. Claim 2: A part of the pile fluff surface of the pile fluff made of thermoplastic synthetic fibers has a thermal conductivity of 0.
．． Particle size is 100 at 2 cal/cm・sec・deg or more
A metallic powder of μm or less is attached, the pile fluff fibers are melted and adhered to the metallic powder at the place where the metallic powder is attached, and the pile fluff is attached to the part where the metallic powder is attached. An antistatic cloth characterized in that the pile fluff is shorter than the pile fluff in the part to which metal powder is not attached.