A color-changing label for marking radiation and its preparation method

Abstract

The invention relates to a color changing label for marking radiation and a preparation method thereof, and belongs to the technical field of radiation monitoring labels. The color changing label for marking radiation is made of fading dye liquor, a nylon nonwoven fabric with a prompt mark on one side, a pressure sensitive adhesive and isolation paper, wherein the fading dye liquor comprises a water-soluble acidic azo reactive dye, starch, a water-soluble light stabilizer, an acid releasing agent and water. The color changing label has superior performance, is suitable for monitoring sterilization of a medical instrument, has higher sensitivity, and is a radiation label which is convenient to use, has high identification degree, and is fast to identify and low in production cost. In addition, the label can be stored for two years at normal temperature, is low in storage cost and does not fail when exposed in the sunshine for a long time.

Description

technical field [0001] The invention relates to a color-changing label and a preparation method thereof. More specifically, the invention relates to a color-changing label for marking radiation and a preparation method thereof, belonging to the technical field of radiation monitoring labels. Background technique [0002] The prospect of irradiation and radiation processing industry is very broad, and strict monitoring of irradiation technology is fundamental. Improper irradiation can change the performance of the product and cause harm to the product. Such as causing some side effects on the color, taste and nutrition of food, destroying some nutrients, changing the molecular structure of food, which will lead to the physiological safety of the eater, induce diseases such as cancer, and pose a safety hazard to human health. Like irradiated food, irradiated medicines also have the same safety problems. Therefore, various countries have strict requirements on the irradiation...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems of low product identification, inconvenient use, need to be stored at low temperature, not resistant to temperature, and not resistant to sunlight in the above-mentioned prior art, and provides a color-changing label for detecting high-energy radiation doses. The color-changing label has a longer shelf life, more intuitive display, can be stored at room temperature for a long time, and will not change color in the sun for a long time