Unlock instant, AI-driven research and patent intelligence for your innovation.

a liquid indicator

An indicator and liquid technology, applied in the direction of using chemical indicators for analysis, etc., can solve the problems of increasing product cost and inconvenient use

Active Publication Date: 2016-03-23
应关雄 +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Because this patent has these two deficiencies, it not only increases the cost of the product but also brings a lot of inconvenience to the use, so it is necessary to improve it

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a liquid indicator
  • a liquid indicator
  • a liquid indicator

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] Example 1. The suitable ratio of liquid indicator is: 100ml of distilled water, 1.0-16g of reducing agent, 0.01-5.0g of discoloration agent, 0-20g of accelerant, and the solution prepared in the air is brown-red , is the color of the indicator after exposure to oxygen. Seal the liquid indicator with the oxygen scavenger, and after 24 hours of anaerobic conditions, the color of the indicator shows light yellow in the anaerobic state. Use an 80um thick oxygen-permeable membrane to make the indicator into a water pack, the size is 2.5*2.7cm, the content of each pack is about 0.5-1ml, and the light yellow indicator will produce a clear color within 1 hour after being exposed to the air Change, light brown red, with the prolongation of exposure time, the color of the indicator will continue to deepen, after 10 days, the color of the indicator will turn brownish yellow, and there is obvious visible precipitation, at this time, it will be sealed with oxygen scavenger, and the ...

example 2

[0037] Example 2. General use of liquid indicators: seal the small package of indicator water package with 50-type oxygen scavenger with a high-barrier packaging bag to make it in an anaerobic state: store it in light yellow, and then fill it with 250ml of air to indicate The color of the indicator gradually changed from light yellow to brownish red. As the oxygen concentration continued to decrease, the color of the indicator also became lighter. When the bag was anaerobic for 1 hour, the color of the indicator returned to the color of anaerobic state: light yellow, such as figure 2 shown.

example 3

[0038] Example 3. For products that require high-temperature and high-humidity sterilization: pack the indicator, oxygen scavenger and products that require high-temperature sterilization together in a high-barrier packaging bag, and vacuumize the bag and fill it with nitrogen to reduce the oxygen concentration to 1%. Left and right / or directly sealed, the packaging bag is treated at 121°C for 15-30 minutes, the oxygen concentration of the packaging bag with an initial oxygen concentration of 1% is reduced to 0.03% after high temperature treatment, and the indicator in the bag remains light yellow, directly sealed After the high-temperature treatment of the packaging bag, there is 5% oxygen remaining in the bag, and the indicator is light brownish red. After anaerobic, the indicator turns light yellow, such as image 3 shown.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a liquid indicator, and belongs to the technical field of deoxidization packaging storage. The liquid indicator is composed of a color changing agent, a reducing agent, a promoter and the like, can be cooperatively used with a deoxidization agent, and can be used for monitoring whether there is air leakage of food or medicine packaging storage without / with high temperature disinfection or not, wherein the indicator becomes brownish red or bluish violet in color when there is oxygen, and the indicator becomes colorless or pale yellow in color when there is no oxygen.

Description

technical field [0001] The invention relates to a liquid indicator, which belongs to the technical field of deoxygenation packaging and storage. It is used in conjunction with an oxygen scavenger to judge whether there is oxygen in the packaging bag through the color change of the indicator: the aerobic indicator shows blue-purple or brown-red, The anaerobic indicator is colorless or light yellow. The indicator can withstand 121°C high temperature and high humidity sterilization conditions, so it can be used to monitor whether there is air leakage in food or pharmaceutical packaging that requires / or does not require high temperature sterilization. Background technique [0002] In the early 1980s, under the leadership of the patent applicant Ying Guanxiong, my country's first oxygen scavenger "801" was developed, and the deoxygenation and storage technology began to be promoted in my country. In 1988, the patent applicant Ying Guanxiong and Zhehong aimed at "801" In the storag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/22
Inventor 应关雄应浙鸿鞠红英应丹青
Owner 应关雄