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Our Commitment to Safety

Plating that Uses a Food Additive in Place of Cyanide

Hisanaga Seisakusho has recently expanded its in-house production capabilities to include plating operations, in addition to snap fastener mold making and press machining. Plating surfaces is a necessary process in order to add decorative colors as well as provide anti-corrosive and anti-friction properties. Surfaces are treated based on the application and types we provide include electroplating, chemical conversion treatments and coating. Among others tin-copper alloy electroplating is provided to safeguard against allergies prone to the more popular nickel-type snap fasteners, but traditionally a large amount of potassium cyanide or sodium cyanide (both hazardous chemicals) has been used in the manufacturing process.

As a result, starting in 2007, we became the first in the industry to create a target to establish a cyanide-free alloy plating technology and in 2010 we successfully created a novel cyanide-free tin-copper alloy plating technology that uses a food additive, and launched mass production. This cyanide-free plating technology helps ensure the safety of employees who handle plating chemicals and reduces the threat of cyanide gas emitted from wastewater treatment facilities or groundwater pollution. It also completely eliminates the possibility of residual cyanide compounds in finished products.

Currently, our cyanide-free plating, or Noncya, targets baby apparel applications because of their highly sensitive skin, and we are processing more than 1 million sets of metal snap fasteners each day for that purpose. In addition, all of our surface treatments are grounded in the fundamental concept of being completely cyanide-free. This represents our commitment to only manufacture products that are safe for our customers and the environment.