Fastener element for slide fasteners

Patent metadata

Field	Value
Publication number	US-9528178-B2
Application number	US-201214415787-A
Country	US
Kind code	B2
Filing date	Jul 24, 2012
Priority date	Jul 24, 2012
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A fastener element for slide fasteners where the color and pattern change diversely with viewing angle. A coiled fastener element for slide fasteners that is to be furnished on a fastener tape, wherein the fastener element is provided with an engagement head, an upper leg, a lower leg, and inverting part for connecting the upper leg with the lower leg; a coating comprising at least one light-transmissive layer is formed on at least the upper leg; and the thickness of the light-permeable layer is formed so as to decrease gradually from the approximate top of the upper leg to the fastener tape side and so that the layer thickness near the top is at most about 50-1500 nm.

First claim

The invention claimed is:

1. A coil-shaped fastener element for slide fasteners to be attached to a fastener tape,
wherein the fastener element comprises an engagement head, an upper leg, a lower leg and an inverting part connecting the upper leg and the lower leg,
wherein a coating comprising at least one light transmissive layer is formed at least in the upper leg,
wherein a layer thickness of the light transmissive layer is formed to gradually decrease from an approximate top of the upper leg toward a side of the fastener tape,
wherein the layer thickness of the approximate top is about 50 nanometer (nm) to about 1500 nm at the maximum, and
wherein the light transmissive layer comprises at least two light transmissive layers laminated, and light is reflected on at least one interface formed with the at least two light transmissive layers.

2. The fastener element for slide fasteners according to claim 1 , wherein an edge of the light transmissive layer is formed toward the side of the fastener tape beyond a central line in the horizontal direction of a cross-section of the upper leg.

3. The fastener element for slide fasteners according to claim 1 , wherein the light transmissive layer comprises a dielectric substance as a material.

4. The fastener element for slide fasteners according to claim 1 , wherein the light transmissive layer comprises an electrically conductive compound, a colored compound or a metal or semiconductor as a material.

5. The fastener element for slide fasteners according to claim 4 , wherein the layer thickness of a layer comprising the electrically conductive compound, the colored compound, or the metal or semiconductor as a material is 100 nm or less.

6. The fastener element for slide fasteners according to claim 1 , wherein a layer comprising a resin as a material is formed outside of the light transmissive layer.

7. The fastener element for slide fasteners according to claim 6 , wherein the layer comprising a resin as a material has a maximum film thickness of 500 nm or more.

8. The fastener element for slide fasteners according to claim 1 , wherein a layer comprising a metal as a material is formed between the coating and the upper leg.

9. The fastener element for slide fasteners according to claim 8 , wherein the layer comprising a metal as a material has a maximum layer thickness of 100 nm or less.

10. A slide fastener comprising the fastener element according to claim 1 .

11. A coil-shaped fastener element for slide fasteners to be attached to a fastener tape,
wherein the fastener element comprises an engagement head, an upper leg, a lower leg and an inverting part connecting the upper leg and the lower leg,
wherein a coating comprising at least one light transmissive layer is formed at least in the upper leg,
wherein a layer thickness of the light transmissive layer is formed to gradually decrease from an approximate top of the upper leg toward a side of the fastener tape, and
wherein the layer thickness of the approximate top is about 50 nanometer (nm) to about 1500 nm at the maximum, and
wherein the light transmissive layer is formed by layering three or more light transmissive layers so that relative refraction indices of adjacent two layers are high/low in an alternate manner.

12. The fastener element for slide fasteners according to claim 11 , wherein an edge of the light transmissive layer is formed toward the side of the fastener tape beyond a central line in the horizontal direction of a cross-section of the upper leg.

13. The fastener element for slide fasteners according to claim 11 , wherein the light transmissive layer comprises a dielectric substance as a material.

14. The fastener element for slide fasteners according to claim 11 , wherein the light transmissive layer comprises an electrically conductive compound, a colored compound or a metal or semiconductor as a material.

15. The fastener element for slide fasteners according to claim 14 , wherein the layer thickness of a layer comprising the electrically conductive compound, the colored compound, or the metal or semiconductor as a material is 100 nm or less.

16. The fastener element for slide fasteners according to claim 15 , wherein a layer comprising a resin as a material is formed outside of the light transmissive layer.

17. The fastener element for slide fasteners according to claim 16 , wherein the layer comprising a resin as a material has a maximum film thickness of 500 nm or more.

18. The fastener element for slide fasteners according to claim 11 , wherein a layer comprising a metal as a material is formed between the coating and the upper leg.

19. The fastener element for slide fasteners according to claim 18 , wherein the layer comprising a metal as a material has a maximum layer thickness of 100 nm or less.

20. A slide fastener comprising the fastener element according to claim 11 .

Assignees

• Takeda Hideki
• Yamamoto Syoso
• Yamaguchi Hideyuki
• Ichikawa Nobuhiro
• Nakamura Yukako
• Ykk Corp

Inventors

• Takeda Hideki
• Yamamoto Syoso
• Yamaguchi Hideyuki
• Ichikawa Nobuhiro
• Nakamura Yukako

Classifications

• A44B19/24

  Details · CPC title

• Y10T24/2518

  having coiled or bent continuous wire interlocking surface · CPC title

• C23C14/083

  of refractory metals or yttrium · CPC title

• A44B19/12 Primary

  Interlocking member in the shape of a continuous helix · CPC title

• C23C14/0015 Primary

  characterized by the colour of the layer · CPC title