Oxygen indicator preparation method

Abstract

The invention discloses an oxygen indicator preparation method. The oxygen indicator preparation method comprises the following steps: preparing solid ingredients and a liquid ingredient, wherein the solid ingredients comprise a dispersant, a stamping auxiliary, a lubricant and an adhesive, and the liquid ingredient comprises an oxygen indicator aqueous solution; enabling all the solid ingredients to pass through a 20-mesh sieve, then feeding the screened materials into an agitator, adding the liquid ingredient while stirring until the materials are mixed uniformly, drying at low temperature or airing at normal temperature; pressing the aired oxygen indicator ingredient by a tablet press to form the flake-shaped or blocky oxygen indicator; packaging: packaging the flake-shaped or blocky oxygen indicator to obtain the product. According to the oxygen indicator preparation method disclosed by the invention, the indicator is prepared into the flake shape or the block shape, so that the indicator is convenient to package and store, low in possibility of being affected with damp, longer in service life and long in period of validity; furthermore, in the using process, the oxygen indicator is free of powder leakage and liquid seepage.

Description

technical field [0001] The invention relates to the field of food preservation, in particular to a method for preparing an oxygen indicator. Background technique [0002] In production or life, for some foods that need to be stored for a long time, it is usually necessary to seal the food to isolate the food from the air and prevent the oxygen in the air from oxidizing the food, causing the food to deteriorate and become inedible. For this reason, in recent years, there are The oxygen indicator (detection agent) is sealed into the packaging container together with the food, and the oxygen content in the packaging is detected by the oxygen indicator, so that ordinary consumers can distinguish whether there is oxygen in the packaging according to the color presented by the oxygen indicator. Existence, whether food or medicine has been preserved in the absence of oxygen. [0003] However, the existing oxygen indicators are all in the form of powder packaging or linear packagin...

AI Technical Summary

Problems solved by technology

[0003] However, the existing oxygen indicators are all in the form of powder packaging or linear packaging. The powder packaging uses transparent perforated film and is packaged in the form of three-side seal or back seal. During packaging, powder leakage is prone to occur, and the storage period Shorter; linear packaging is made of transparent perforated film with three-side seal or back seal. The indicator line in the package is darker in color, easy to absorb moisture, and prone to dye solution leakage, and the validity period is short.

Therefore, there is an urgent need for a new type of oxygen indicator to solve the problems of oxygen indicator powder leakage, dye liquor leakage, and short validity period.

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