SM1109 Soaking Discoloration Ink 【Introduction】 SM1109 Soaking Discoloration Ink is a white moisture-sensitive ink(Water-changing ink).Also known as Special Water Changing Ink It can also be called a special water-changing ink.The principle is that it will become colorless and transparent when exposed to water. When the water evaporated, it will return to its original white state. This ink contains special resin materials and special water-absorbing materials, and undergoes a special manufacturing process. It is mainly suitable for water detection of mobile phone batteries, electrical appliance labels, baby care and other products. It can also be used for anti-counterfeiting packaging of various high-end cigarettes, alcohol, medicines, food, beverages, daily necessities, cosmetics, umbrellas, nylon cloth, luggage, leather and other commodities. 【characteristic】 1. SM1109 ink turns white to transparent when exposed to water. It…