A monitoring system based on etching of metals

A technology of metal and metal layer, applied in the direction of measuring device, test time/temperature history, thermometer giving average value/integral value, etc., can solve problems such as influence

Active Publication Date: 2011-05-25
JP LAB INC
View PDF28 Cites 53 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the sensitivity of the ink decreases over time, especially in the presence of moisture, so that the initial and final
[0059] In most cases, consumers want to know whether a product is good, bad, acceptable, unacceptable, effective, ineffective, etc.
Some people don't know or can't fully understand good and bad

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 monitoring system based on etching of metals
  • A monitoring system based on etching of metals
  • A monitoring system based on etching of metals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0471] The present invention relates to a pointing system that can be used in various pointing devices.

[0472] The indicator system of the present invention consists of a metal indicator layer and an activator layer, wherein the metal layer is a metal, a metal alloy, a semi-metal material or a semiconductor material. Said activator is an agent capable of irreversibly altering the layer of the indicator by etching or destroying it or altering the properties of the layer,

[0473] The indicator layer of the present invention comprises a metal that is or can be made conductive, reflective, highly opaque, self-adhesive and / or impermeable, it can be made non-visible, transparent, Translucent, non-conductive, or otherwise destroyed by contact with the activator.

[0474] Preferred indicator materials of the present invention include a metal such as an alkali metal, alkaline earth metal, transition metal, late transition metal, lanthanide and actinide metal or alloys thereof, or m...

example 1

[1148] Example 1: Existing Technology

[1149] Two-tape TTI device from Avery Dennison, Pasadena, CA, by applying an activator tape (containing PSA acid on a clear plastic film) to an indicator tape (containing resin pH stain on a white plastic film) to activate. Activated devices typically change from yellow -> light purple -> purple -> dark purple within one day at room temperature and one hour at 50 °C. The evolution / change of color is rapid at the beginning and slow at the end. Since the diffusion of the device is based there is no sudden color change.

example 2

[1150] Example 2: Effect of phosphoric acid and its concentration.

[1151] A piece of 100 micron metallized polyester film (with an aluminum layer of 125 angstrom thickness) was used to demonstrate the feasibility of the concept.

[1152] Write the letter "A" on the metal layer of the metallized film and write "1" behind the film placed on a piece of red paper, then pour 1 mL of 85% phosphoric acid over the "A". After about 4 minutes a small amount of gas bubbles (hydrogen gas) appeared on the aluminum layer. The red paper and "1" are invisible for 5 minutes. The aluminum layer was completely dissolved and the red paper became fully visible after 6 min. Therefore, the device has a very long induction period (about 80% of the system) for color change (silver to red), ie, 5 minutes is no red and red appears in about a minute. There are example 33 and Figure 44 As shown in , the time required to completely dissolve the metal layer increased from 6 minutes with 85% phosphori...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

Compositions, devices and processes related to etching of a very thin layer or fine particles of a metal are disclosed for monitoring a variety of parameters, such as time, temperature, time-temperature, thawing, freezing, microwave, humidity, ionizing radiation, sterilization and chemicals. These devices have capabilities of producing a long and sharp induction pepod of an irreversible visual change The devices are composed of an indicator comppsing a very thin layer of a metal (e g, polyester film having an extremely thin, e g, about one hundred Angstroms layer of aluminum) and an activator, e g, a reactant, such as water, water vapor, an acid, a base, oxidizing agent or their precursors, which is capable of reacting with the said indicator. The indicator retains its opacity and metallic luster, e g, silvery white, mirror like finish of aluminum layer for a long time. The activator destroys the indicator layer including the naturally formed oxide layer.

Description

【Technical field】 [0001] The present invention relates to a metal thin layer or particle etching based system and method for monitoring time, time-temperature, humidity, thawing, radiation, chemical and biological agents and disinfection. The invention also relates to the formation of patterns, printing plates, electronic circuits and RFID devices. 【Background technique】 [0002] Introduction to existing technology [0003] A measure of the shelf life of a perishable product, usually expressed in terms of the remaining time beyond a regulatory limit for end use. The term "perishables" or "perishable products" here includes items such as fresh, refrigerated, frozen, vegetables, fruits, meat, fish, poultry, dairy products, pastries, fruit juices, pre-cooked foods, soft drinks and alcoholic beverages, etc. Perishable products, also non-food categories with measurable shelf life with shelf life ranging from a few hours to years Including pharmaceuticals, vaccines, serum, bloo...

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 Applications(China)
IPC IPC(8): G01D21/00
CPCG01D3/10G01K3/04G01N31/229G01N31/224
Inventor G·帕特尔
Owner JP LAB INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap