Hojin Co., Ltd.
18K gold jewelries
JEI SPARKLE
JEI SPARKLE delivers a shine comparable to diamonds by applying a diamond cut finish to each part.In addition to necklaces, there is a lineup of flexible bracelets and rings that you can enjoy.
JEI SPARKLE delivers a shine comparable to diamonds by applying a diamond cut finish to each part. In addition to necklaces, there is a lineup of flexible bracelets and rings that you can enjoy. In addition to the usual gold color such as YG, PG, WG, you can also choose vivid colors by ion plating.
Feature 1: Brilliant glow by diamond cut
Each part is carved with a large number of flat surfaces by diamond blades. Because of this carve, we realized a glow that makes a difference from conventional bare metal products.

Feature 2: Brilliant color by ion plating
Adopting ion plating coats the pieces with a titanium alloy in a vacuum. We offer unparalleled color products such as bright blue, green and purple.

Proposal: We can supply JEI SPARKLE part
You can freely design JEI SPARKLE by matching with other products.

* We do not supply part of small lot.
* Prices are depending on the market, please inquire for details.
Adopting ion plating coats the pieces with a titanium alloy in a vacuum.	We offer unparalleled color products such as bright blue, green and purple.
What is Ion Plating?
This technology uses heat and plasma energy to vaporize metal in a vacuum environment, combine it with reactive gas to form ceramic, and then collide it with the workpiece to coat it. Compared to conventional wet plating (gold plating, rhodium plating, etc.), this technology has excellent abrasion resistance and adhesion.

About the surface color of ion plating
Ion plating is also a technology that can produce coatings in a variety of colors. This is because the materials used in the coating and the adjustment of the process (layer thickness) allow for surface finishes in a variety of colors. For example, ion plating produced using titanium nitride (TiN) or titanium oxide (TiO2) can produce conditions that produce vibrant colors. When the thickness of the thin film is comparable to the wavelength of visible light, the light passing through the thin film is reflected on both the front and back sides. At this time, the reflected light interferes with each other. By designing the blue wavelengths (approximately 450-495 nm) to be constructive, the coating appears blue.
Features of ion plating
Extremely durable:
Ion plating produces a very hard coating, which makes it highly resistant to abrasion and scratches. In addition, the coating is very strongly bonded to the substrate, meaning that it is unlikely to peel off even under daily use or in harsh environments. In addition, the coating is uniform and dense, making it difficult for corrosive factors such as oxygen and moisture to reach the substrate, making it extremely resistant to oxidation and rust.

Hypoallergenic:
It is generally considered to pose a lower risk of allergies than conventional plating methods because the ion plating process produces a dense, uniform coating that minimizes exposure to allergenic metals.
Copyright (c) 2023 Hojin Co., Ltd. all rights reserved.
MR Bldg.4F, 5-7-11, Ueno, Taito-ku, Tokyo, 110-0005, Japan
Tel: +81-3-3836-5874 Mail: info@ho-jin.tokyo
Powered by Airy Framework for fastest webcasting.