JP2018168482A - Leather or artificial leather patterning method and leather or artificial leather patterned using the same - Google Patents

Abstract

A leather 10 is provided with a pattern 14 which is a pattern with a small unevenness difference and whose appearance changes depending on the viewing angle. Kind Code: A1 On the surface of a leather 10, thin and parallel convex portions 31 and concave grooves 32 are provided for a surface 11 to be the ground and patterned or striped pattern portions 12, 13 to be attached to the surface 11, respectively. It is characterized by leather or artificial leather in which uneven surfaces in which . [Selection diagram] Fig. 1

Description

  The present invention relates to a leather or artificial leather patterning method for applying a pattern whose appearance changes depending on an angle seen on the surface of the leather or artificial leather, and to a leather or artificial leather patterned using the method.

  Conventionally, as a technique for patterning the smooth surface of natural leather with a smooth surface, a method of patterning by hand using a stamp, a method of applying a pattern by pressing a template engraved with a pattern, or a pattern A method is known in which a pattern is continuously formed by embossing with a roller having a pattern carved on the surface. Any of these patterning methods is suitable for providing a relatively large uneven pattern with a relatively high convex part and a relatively deep concave part.

  However, there is no known patterning method for providing a pattern in which the difference in unevenness is small and the appearance changes depending on the viewing angle in relation to the reflection angle of light. Also, leather or artificial leather patterned by such a method is not known.

JP 2007-276285 A JP 2008-238601 A JP 2006-204811 A

  The present invention has been made in view of the above-described problems of the prior art, and it is a pattern of leather or artificial leather that has a pattern with a small difference in unevenness and a pattern that changes the appearance depending on the viewing angle on the surface of leather or artificial leather. It is an object to provide a patterning method and leather or artificial leather patterned using the patterning method.

  According to the present invention, on the surface of leather or artificial leather, thin and parallel convex portions and concave grooves are alternately formed on the surface to be ground and the patterned portion or striped portion to be attached thereto. It is characterized by a patterning method of leather or artificial leather that forms uneven surfaces that appear and have uneven surfaces having different inclination angles between the ground surface and the patterned or striped portion.

  In the above-described leather or artificial leather patterning method, the width of each of the convex portions and the concave grooves can be 0.1 mm or more and 0.3 mm or less.

  In addition, the present invention provides that the surface of the leather or artificial leather has alternating thin and parallel convex portions and concave grooves for the surface to be ground and the pattern portion or striped portion to be attached thereto. A leather or artificial leather in which uneven surfaces appearing in the surface, and the uneven surface having different inclination angles are formed on the ground surface and the patterned pattern portion or the striped pattern portion.

  In the above leather or artificial leather, the width of each of the convex portions and the concave grooves can be 0.1 mm or more and 0.3 mm or less.

  According to the patterning method for leather or artificial leather of the present invention, a pattern having a small unevenness and whose appearance changes depending on the viewing angle can be applied to the surface of the leather or artificial leather.

  Moreover, according to the leather or artificial leather of the present invention, it is possible to provide leather or artificial leather having a pattern with a small difference in unevenness and a pattern whose appearance changes depending on the viewing angle.

FIG. 1 is an explanatory view showing a configuration of a pattern attached to the surface of natural leather according to one embodiment of the present invention. FIG. 2 is an explanatory diagram of a mold used for applying the pattern of the embodiment. FIG. 3A to FIG. 3C are explanatory views of a lateral concavo-convex surface, a vertical concavo-convex surface, and an oblique concavo-convex surface constituting the pattern of the embodiment. 4 (a) and 4 (b) are explanatory views showing the light reflection effect on the pattern of the embodiment. FIG. 5 is a photograph of a wallet made of patterned leather according to the above embodiment. FIG. 6A to FIG. 6C are explanatory views of convex portions and concave grooves that form an uneven surface used in a modification of the present invention. FIG. 7 is an explanatory view showing a pattern of another modified example of the present invention. FIG. 8 is an explanatory view showing a pattern of still another modified example of the present invention. FIG. 9 is an explanatory view showing a pattern of still another modified example of the present invention. FIG. 10 is an explanatory view showing a pattern of still another modified example of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 shows the surface of natural leather patterned by the patterning method of one embodiment of the present invention. In the embodiment, the surface of the natural leather 10 of the silver surface type is obtained by embossing so that the horizontal thin convex portions and the thin concave grooves appear alternately. And the vertical uneven surface 12 having a striped pattern obtained by embossing so that vertical vertical thin convex portions and thin concave grooves appear alternately, and at 45 degrees to both A pattern 14 composed of three types of concave and convex surfaces 11, 12, and 13, which is obtained by embossing so that inclined convex portions and concave grooves appearing alternately, appears. In this specification, the horizontal direction and the vertical direction are relative, and in the drawings, the horizontal direction is referred to as the horizontal direction, and the direction orthogonal to the horizontal direction is referred to as the vertical direction. If the is rotated, the horizontal direction becomes vertical, and the vertical direction may become horizontal.

  The natural leather 10 is a smooth surface, that is, a silver surface type. The kind of animal is not limited as long as it is a natural leather 10 of silver surface type, but fine leather such as cow, pig, deer, kangaroo and the like are preferable. Artificial leather can be used as a material instead of natural leather. Although there are slight differences in the heating temperature, the patterning method is the same.

  Patterning is performed as follows. First, an embossing die 20 for embossing as shown in FIG. 2 is prepared. In the case of the embodiment, since the unevenness to be applied to the surface of the leather 10 is fine, this embossing mold 20 is formed with an uneven surface 21 in which the convex portions and the concave grooves are inverted in advance by etching. In FIG. 2, the black line represents the groove and the white line represents the convex portion. The mold 20 used was a 25 cm × 24 cm size. The invention is not particularly limited to this.

  Then, the embossed mold 20 is pressed against the surface of the natural leather 10 on which the pattern is to be applied under heat, and the embossed mold 20 is embossed to transfer the uneven surface to the surface of the natural leather 10. The applied pressure is 16 Pascals, which should also be adjusted according to the material, pattern to be created, and size. By this embossing process, the natural leather 10 with the pattern 14 shown in FIG. 1 is obtained.

  Next, the configuration of the pattern 14 of the patterned natural leather 10 shown in FIG. 1 will be described in more detail with reference to FIG. As for the concavo-convex pattern 14 by the embossing mold 20, the lateral (180 °) concavo-convex surface 11 which becomes the ground occupying the widest area as the pattern is a concave groove 31 having a width of 0.2 mm, for example, as shown in FIG. And a convex portion 32 having a width of 0.3 mm are embossed on an uneven surface that appears alternately in parallel. The vertical (90 °) concave / convex surface 12 perpendicular to the lateral concave / convex surface 11 is also embossed on the concave / convex surface in which thin concave grooves 33 and thin convex portions 34 alternately appear as shown in FIG. It is processed and forms a striped pattern portion. In FIG. 1, at the intersection where the stripe pattern rising to the right and the stripe pattern falling to the right intersect, as shown in FIG. 3C, the horizontal direction (180 °), the vertical direction (90 °), and The oblique concave / convex surface 13 is formed by embossing so that the oblique grooves 35 and the convex portions 36 forming an angle of 45 ° alternately appear with respect to any of the above.

  In the case of the pattern 14 of the embodiment, the longitudinal direction (90 °) uneven surface 12 forming the striped pattern portion is ± in the longitudinal direction of the striped pattern portion with respect to the longitudinal direction in the state shown in FIGS. It forms 45 °, and the direction of the vertical convex portion 33 and the concave groove 34 also forms ± 45 ° with respect to the longitudinal direction of the striped pattern.

  The surface of the natural leather 10 patterned with such uneven surfaces 11, 12, and 13 changes delicately and intricately depending on the direction of light and the viewing angle. That is, as shown in FIG. 4A, the light from the diagonally lower left side 45 ° is reflected on the concave and convex surface because the concave groove 31 and the convex portion 32 are horizontal in the horizontal concave and convex surface 11 and obliquely lower right. Go out to the side. The light from the left oblique lower side 45 ° is reflected by the concave / convex surface of the vertical concavo-convex surface 12 because the concave groove 33 and the convex portion 34 are in the vertical direction, and exits to the upper left side. Then, the light from the same obliquely lower left side 45 ° is reflected in the incident direction because the concave groove 35 and the convex portion 36 are perpendicular to the light on the oblique concave / convex surface 13. On the contrary, as shown in FIG. 4B, the light from the diagonally lower right side 45 ° is reflected on the concave / convex surface 11 because the concave groove 31 and the convex portion 32 are horizontal in the horizontal concave / convex surface 11 Go out to the side. The light from 45 ° on the lower right side of the right side is reflected by the concave / convex surface of the vertical concave / convex surface 12 because the concave groove 33 and the convex portion 34 are in the vertical direction, and exits on the upper right side. Then, the light from the same obliquely lower right side 45 ° on the obliquely uneven surface 13 has the concave grooves 35 and the convex portions 36 substantially parallel to the incident light, and travels straight without reflecting most of the light. And if the pattern 14 (leather 10) is rotated, the reflection mode of light will change.

  Therefore, in the leather 10 patterned according to the present embodiment, either one of the vertical uneven surface 11, the lateral uneven surface 12, the oblique uneven surface 13, or two surfaces with a large amount of reflected light shine brightly depending on the viewing direction. And the rest of the surface will appear dark and sunk. Moreover, the uneven | corrugated surface which looks bright moves by rotating the leather 10 horizontally, or rotating up and down. For this reason, the shade of reflected light changes slightly depending on the direction and angle of the surface of the leather 10, and the unevenness is so fine that it looks like a pattern in the distance, but the pattern appears to float when viewed nearby. Also do.

  FIG. 5 shows a wallet created using the patterned leather 10 of the embodiment. As shown in FIG. 5, the surface looks almost amber with a distant eye, but when viewed close together in a slightly tilted state, the striped pattern 12 shines white and the ground pattern 11 appears darkly sinking. Moreover, if the wallet is tilted or rotated at a different angle, for example, the portion of the ground pattern 11 will appear bright and shining, or the portion of the striped pattern 12 will appear shining. In this way, even if the surface of the leather is not colored using a paint mixed with a reflective agent, or even if it is colored leather, it can give an impression that the appearance changes variously depending on the angle that the person sees. it can.

<Modification>
Next, a method for patterning leather or artificial leather according to the present invention and a modification of leather or artificial leather patterned using the method will be described. In the above-described embodiment, the vertical protrusions, the vertical uneven surfaces formed by the grooves, the horizontal protrusions, the horizontal uneven surfaces formed by the grooves, and the oblique protrusions and recesses formed by the oblique grooves. The pattern is composed of uneven surfaces in three directions on the surface. However, the present invention is not limited to this embodiment, and there are two types of unevenness: a vertical uneven surface composed of vertical convex portions and concave grooves, and a horizontal uneven surface composed of horizontal convex portions and concave grooves. Patterns can also be configured with faces. Also, it is possible to form a concavo-convex surface composed of four or more kinds of convex portions and concave grooves having different inclination angles, and to add a pattern. For example, 10 angles, 18 ° line, 36 ° line, 54 ° line, 72 ° line, 90 ° line, 108 ° line, 126 ° line, 144 ° line, 162 ° line If a pattern is created using a concavo-convex surface composed of a line and a 180 ° line, ten different shades of reflected light can be generated. Also, it is composed of 1000 kinds of angles, 0.1 ° line, 0.2 ° line, 0.3 ° line, ... 359.8 ° line, 359.9 ° line, 360 ° line If a pattern is created using the uneven surface, 1000 types of shades of reflected light can be generated. Theoretically, if there are 100,000 kinds of angle lines, 100,000 kinds of shades of reflected light can be generated.

  Further, as shown in FIGS. 6A to 6C, the density of the reflected light can be changed by changing the thickness of the line constituting the uneven surface. FIG. 6A shows an uneven surface 41 of a thin 180 ° line. FIG. 6B shows a rough surface 42 of a thick 180 ° line. FIG. 6C shows an uneven surface 43 using these thin lines and thick lines alternately. In each of FIGS. 6A to 6C, the black straight line represents a concave groove, and the white portion between the concave grooves represents a convex portion.

  Furthermore, the modification of the pattern using the pattern which gave the unevenness | corrugation is shown in FIGS. In the example shown in FIG. 7, the pattern 50 attached to the leather 10 has a horizontal uneven surface 51 as a ground, a vertical uneven surface 52 forms a star pattern portion, and an oblique uneven surface 53 forms a striped pattern portion. Is configured. In this pattern 50, the ground shines strongly depending on the viewing angle, and on the contrary, the star pattern and the stripe pattern appear to sink darkly, on the contrary, only the star pattern appears to float, or only the stripe pattern appears to float. However, the appearance of the pattern 50 changes in various ways.

  In the example shown in FIG. 8, the pattern 60 applied to the leather 10 has a horizontal uneven surface 61 as a ground, a vertical uneven surface 62 constitutes a floral pattern portion, and the center portion and the central position of each floral pattern. An uneven surface 63 in an oblique direction is formed around the floral pattern and the part facing the central floral pattern of the four floral patterns. In this pattern 60, the ground shines strongly depending on the viewing angle. On the other hand, the floral pattern appears dark and sinks, the floral pattern appears to float, or only the central floral pattern appears to float. The view of 60 changes variously.

  In the example shown in FIG. 9, the pattern 70 applied to the leather 10 has a horizontal uneven surface 71 as a ground, and the vertical uneven surface 72 constitutes one T2O character pattern, and further has an uneven uneven surface. The surface 73 constitutes the other T2O character pattern facing upside down. In this pattern 70, the ground shines strongly according to the viewing angle, and on the contrary, both character patterns appear to sink darkly, only one character pattern appears to float, or only the opposite character pattern appears to float. In other words, the appearance of the pattern 70 changes in various ways.

  Further, in the example shown in FIG. 10, the pattern 80 applied to the leather 10 has a horizontal uneven surface 81 as a ground, and the vertical uneven surface 82 constitutes an upper row and a lower row of polka dots, and further in an oblique direction. The concavo-convex surface 83 constitutes a polka dot pattern in the upper and lower central rows. In each polka dot pattern, a small deer pattern 84 is also drawn using uneven lines in the horizontal direction. In this pattern 80, the ground and deer shine strongly depending on the viewing angle, and on the contrary, the polka dot pattern appears to sink darkly, only the polka dot pattern in the upper and lower rows appears to float, or only the polka dot pattern in the center row rises. The way the pattern 80 is seen changes in various ways.

  As mentioned above, although this invention was demonstrated using embodiment, this invention is each with respect to the surface which should become the ground, and the pattern part or striped part which should be attached to it with respect to the surface of leather or artificial leather A leather or artificial leather that is an uneven surface in which thin and parallel convex portions and concave grooves appear alternately, and forms an uneven surface with a different inclination angle between the ground surface and the patterned pattern portion or striped pattern portion. It is characterized by a patterning method and leather or artificial leather produced by the method.

  In addition, according to this invention, the inclination angle and pattern of an uneven surface can be diversified arbitrarily, and it is not limited to what was illustrated in embodiment. The patterned natural leather or artificial leather of the present invention can be widely used for leather products such as bags, wallets and pass holders.

DESCRIPTION OF SYMBOLS 10 Leather 11 Lateral uneven surface 12 Vertical uneven surface 13 Diagonal uneven surface 20 Type | mold 21 Convex surface 31,33,35 Concave groove 32,34,36 Convex part 41 Thin line uneven surface 42 Thick line uneven surface 43 Thin Uneven surface of lines and thick lines 50, 60, 70, 80 Pattern 51, 61, 71, 81 Uneven surface in vertical direction 52, 62, 72, 82 Uneven surface in horizontal direction 53, 63, 73, 83 Uneven surface in oblique direction

The present invention is, with respect to the surface of the grain of the leather or artificial leather, put the handle pattern portions or stripes is a surface portion to give a surface portion and the handle pattern to be a pattern locations occupying a widest area in the surface A convex and concave surface in which parallel convex portions and concave grooves alternately appear with respect to each of the striped pattern portion that is a power surface portion, and the surface portion serving as the ground and the patterned pattern portion or the striped pattern portion mutually inclination angle Ri is Do different, and changing the shading of the reflected light by the leather or direction or viewing angle to see the surface of the artificial leather, pattern design of the handle pattern part a from a distance close look at while visible without pattern Alternatively, it is characterized by a patterning method for leather or artificial leather that forms an uneven surface that reveals the appearance of the striped pattern in the striped pattern .

The present invention is, with respect to the surface of the grain of the leather or artificial leather, the handle pattern portion or stripes is a surface portion to give a surface portion and the handle pattern to be a pattern locations occupying a widest area in the surface For each of the striped pattern portion that is the surface portion to be attached , parallel convex portions and concave grooves appear alternately, and the ground surface and the patterned pattern portion or striped pattern portion mutually inclination angle Ri is Do different, and changing the shading of the reflected light by the leather or direction or viewing angle to see the surface of the artificial leather, pattern design of the handle pattern part a from a distance close look at while visible without pattern Alternatively, the present invention is characterized by leather or artificial leather formed with an uneven surface that reveals the appearance of the striped pattern in which the striped pattern appears .

Claims (4)

On the surface of leather or artificial leather, an uneven surface where thin and parallel protrusions and grooves appear alternately for each of the surface to be ground and the patterned or striped portion to be attached to it. A patterning method for leather or artificial leather, wherein uneven surfaces having different inclination angles are formed on the ground surface and the patterned portion or the striped portion. The method for patterning leather or artificial leather according to claim 1, wherein the width of each of the convex portions and the concave grooves is 0.1 mm or more and 0.3 mm or less. On the surface of leather or artificial leather, an uneven surface where thin and parallel protrusions and grooves appear alternately for each of the surface to be ground and the patterned or striped portion to be attached to it. A leather or artificial leather, wherein the ground surface and the patterned portion or the striped portion are provided with uneven surfaces having different inclination angles. The leather or artificial leather characterized in that the width of each of the convex part and the concave groove is 0.1 mm or more and 0.3 mm or less.

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