JP2001353800A - Light reflecting skin material and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly light reflecting skin material of a practical constitution. SOLUTION: This light reflecting skin material has a light reflecting material imparted in the form of film on the raised pile root side of a fiber skin material having a raised pile formed on the surface. The method for manufacturing the light reflecting skin material includes a process for superposing a film-like light reflecting material on the surface of the base nonwoven fabric and forming the raised pile by needling upto the surface side of the base nonwoven fabric passing through the light reflecting material at least from the back side of the base nonwoven fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-reflective skin material which can be used for clothes, ornaments, interior materials and the like, and a method for producing the same.

[0002]

2. Description of the Related Art Fiber skin materials used for costumes, ornaments, interior materials, etc. are made of various synthetic fibers (polypropylene, polyethylene terephthalate, nylon, rayon, etc.).
And natural fibers (cotton, hemp, etc.) as raw materials, which are organized into woven fabrics, knitted fabrics, nonwoven fabrics and the like, and are produced as skin materials having design properties and necessary physical properties. The gloss (light reflectivity) is an important factor in determining the design of this type of skin material. In other words, a skin material with poor gloss tends to be a skin material without vividness due to a decrease in saturation, and if the gloss is too strong, the skin material may be degraded in luxury depending on its use. Conventionally, dyeing techniques have been used to set the gloss (light reflectivity) required for this type of fiber skin material. In the dyeing technique, the desired luster is brought close to the desired gloss by using fibers whose color tone, saturation, lightness and the like are adjusted according to various dyes and dyeing conditions as raw materials. In order to prevent the fibers from fading under the influence of ultraviolet rays or the like, a fiber may be kneaded with a deterioration preventing material, but it has been impossible to maintain high light reflectivity for a long period of time. As another method, there was a lame-like skin material that knits (or weaves, spins, etc.) a yarn formed of a material with high light reflectivity with other yarns. Since it is exposed on the surface, it has no durability against abrasion, and the material and processing method are limited, so that the color and gloss cannot be freely set. For example,
It was difficult to make a design whose light reflectivity varies greatly depending on the viewing direction, or a design that is not noticeable during the day and stands out at night. It has also been difficult to increase the absolute value of the light reflectance.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a structure which is practical as a skin material having high light reflectivity.

[0004]

Means for Solving the Problems A means of the present invention is a light-reflective skin material of a fiber-made skin material having a raised pile on the surface, wherein a light-reflective material is provided in a film shape on the root surface of the raised pile. by. The skin material of the present invention is a skin material having an unprecedented design property as described below. It is a skin material that can obtain strong gloss by a light reflecting material provided in the form of a film, and exhibits particularly high mirror-like light reflectivity depending on the incident angle of a light source. When the skin material fluctuates (when the viewing direction changes) due to the incident angle, it is possible to produce a sparkling design. It is inconspicuous in the daytime and can produce a distinctive design at night. In particular, by arranging the light reflecting material so as to form a design pattern such as a character or a figure, the light reflecting material can be used as information display means at night.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic sectional view of a light-reflective skin material (needle-punched nonwoven fabric type) of the present invention. The light-reflective skin material 10 has a raised pile 11 formed on at least one surface. In the vicinity of the root surface 12 of the napped pile 11, a light reflecting material 13 is provided in a film shape. Preferred for application as the base of the skin material is a needle-punched non-woven fabric needling raw cotton such as polypropylene, polyethylene terephthalate, rayon, nylon, and the like, or a pile pile formed by tufting a pile yarn against a base fabric. It is a tufted cloth. Laminate a film-like light-reflecting material on the surface of the base non-woven fabric or base fabric before forming the raised pile (for example, luster such as Light Force manufactured by Takeshi Hattori Co., Ltd. or Luminal Metallic manufactured by IKEC Co., Ltd.) Material), needle punching or tufting to form a raised pile from the back side of the base non-woven fabric or the base fabric toward the surface on which the light reflecting material is bulked, and light is emitted in the vicinity of the root face of the formed raised pile. The reflective material is a light reflective skin material in the form of a film.

FIG. 2 is an explanatory view showing a process of manufacturing an embodiment of the light-reflective skin material (needle-punched nonwoven fabric type) of the present invention. In the present embodiment, a step of forming a nonwoven fabric serving as a base, a step of applying a film-like light reflecting material on the formed base nonwoven fabric, and a step of passing the light reflecting material from the back surface side of the base nonwoven fabric to the opposite surface side It consists of a raised pile forming step for needling.

(Process of forming base nonwoven fabric) Raw cotton formed to a predetermined weight is uniformly dispersed and mixed by a mixing machine, and then the fibers are stretched by a carding machine to form a web having uniform fiber directionality. The plurality of nonwoven webs 30 formed as described above are stacked and conveyed to the needle punching machine 20 by the conveyor 25 to form the base nonwoven fabric 31. The configuration of the needle punching machine includes a needle plate 21 on which a number of needling needles 22 are implanted. The needle plate is moved up and down to squeeze the nonwoven web between the needle plate and the receiving table 23. The fiber for the base non-woven fabric has a fiber length of 76 mm, 7 to 15 d
tx polypropylene / polyethylene terephthalate fiber is used.

(Step of Applying Light Reflecting Material) A film-shaped light reflecting material 40 (trade name: Light Force, manufactured by Takeshi Hattori) is placed on the surface of the base nonwoven fabric 31. The light reflecting material in the form of a film is disposed on the entire surface or a part of the surface of the base nonwoven fabric, or is disposed so as to form a design pattern such as a character or a figure. In order to prevent the displacement of the light reflecting material, the light reflecting material may be bonded to the surface of the nonwoven fabric, or light pre-punching may be performed.

(Standing pile forming step) The base nonwoven fabric 2 having the film-like light reflecting material 40 disposed on the surface as described above
1 is supplied to a diro punch machine 50. The diro-punch machine has an endless brush belt 53 having bristles implanted on its surface, and a needle plate 51 having a number of needling needles 52 implanted above the brush belt. Needling needles are implanted in a needle plate at a predetermined needle density, and have a needle shape suitable for forming a raised pile. A needling needle is pierced at a predetermined depth into the base nonwoven fabric 31 conveyed on the brush belt 53, and the tip of the needling needle passes through the base nonwoven fabric (and the light reflecting material) and reaches inside the bristles of the brush belt. This allows
A part of the constituent fibers of the base non-woven fabric is pierced by the needling needle, and the raised pile 32 is formed on the surface of the base non-woven fabric.
The height of this pile is 3-5 mm.

(Measurement of Light Reflectance) The skin material of the above example was placed in a dark room, irradiated with a white light source from a distance of 50 cm from the measurement point, and a luminance meter (Luminometer-BM5A manufactured by Topcon Co., Ltd.) The luminance measurement was performed.
At the measurement point, the luminance at the same point was continuously measured while gradually changing the measurement angle of the light reflectance.

FIG. 3 shows the measurement results. The horizontal axis indicates the measurement direction angle θ between the skin material and the light reflectance (when θ = 0, the measurement direction of the skin material and the light reflectance is perpendicular), and the vertical axis indicates the luminance measured by the light reflection material alone. 5 shows the ratio of the luminance measured with the skin material of the example to the present invention. In addition, a skin material without a light reflecting material was prepared under the same conditions as those of the skin material of the example, and the brightness was measured under the same conditions as an example as a comparative example. From FIG. 3, in the skin material of the embodiment, the light reflectance is maximized in the direction perpendicular to the skin material, and the light reflectance of the light reflecting material is more than 40%. (In addition, a light reflectance of 20% or more is obtained in a certain angle range, and a light reflectance of 10% or more is obtained in a wider angle range.) On the other hand, the light reflectance of the comparative example is much higher than that of the embodiment. And no maximization in a particular direction was observed. This measurement result is in good agreement with visual observation (the skin material of the example is a design with a sparkling feeling, while the skin material of the comparative example is a dull design with no gloss).

[0012]

The skin material of the present invention is a skin material having a strong gloss that has never been seen before. In particular, depending on the viewing direction, a mirror-like high light reflectivity is exhibited. When the skin material fluctuates, it is possible to produce a sparkling design. The color and gloss can be freely adjusted depending on the material and type of the light reflecting material and the height and density of the raised pile. The light reflecting material is protected by the raised pile, and has excellent durability against deterioration such as abrasion.

[Brief description of the drawings]

FIG. 1 shows a cross-sectional view of a light-reflective skin material of the present invention.

FIG. 2 shows a manufacturing process of a light-reflective skin material.

FIG. 3 shows measurement results of light reflectance.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Light reflective skin material 11 ... Napped pile 12 ... Root surface 13 ... Light reflective material 20 ... Needle punch machine 21 ... Needle plate 22 ... Needling needle 23. ..Receiver stand 25 ... Conveyer 30 ... Non-woven web 31 ... Base non-woven fabric 32 ... Pile pile 33 ... Light reflective skin material 40 ... Light reflective material 50 ... Diro punch machine 51: Needle plate 52: Needling needle 53: Brush belt

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kazuaki Kitagawa 1-4-5 Kamimaezu, Naka-ku, Nagoya-shi, Aichi F-term in Hayashi Telemp Co., Ltd. 4F100 AK07 AK41 AR00B BA02 DG15A DG16A EC09A GB08 GB72 HB00 JN06A JN06B JN21 YY00A 4L047 AA12 AA14 AA21 AA23 AB02 BA03 CA05 CA06 CA08 CC01 CC16

Claims (7)

[Claims] 1. A light-reflective skin material, wherein a light-reflection material is provided in the form of a film on a fiber skin material having a raised pile on the surface. 2. The light-reflective skin material according to claim 1, wherein the light reflectance of the fibrous skin material is maintained at 10% or more of the light reflectance of the light reflection material. 3. The light-reflective skin material according to claim 1, wherein the fiber skin material having a raised pile on its surface is a needle punched nonwoven fabric. 4. A step of laminating a film-shaped light reflecting material on the surface of the base nonwoven fabric and forming a raised pile by needling at least from the back surface side of the base nonwoven fabric through the light reflecting material to the front surface side of the base nonwoven fabric. The method for producing a light-reflective skin material according to claim 3, wherein: 5. The light-reflective skin material according to claim 1, wherein the fiber skin material having a raised pile on the surface is a tufted carpet. 6. A step of laminating a film-like light reflecting material on the front surface, tufting a pile yarn from the back surface side of the base fabric, and forming a raised pile on the front surface side of the base fabric through the light reflecting material. The method for producing a light-reflective skin material according to claim 5, wherein 7. The light-reflecting skin material according to claim 1, wherein the light-reflecting material provided in the film shape forms a design pattern such as a character or a figure. Production method.