Time temperature indicator and manufacturing method thereof

A technology for indicating devices, time and temperature, applied in thermometers, measuring devices, thermometers with physical/chemical changes, etc., can solve the problem of inability to meet the timing requirements of time and temperature indicators, the characteristics of micropores in the moving medium layer are not obvious, phase change materials Poor penetration effect and other problems, to avoid failure of time indication function, improve affinity, and good penetration effect

Active Publication Date: 2015-12-09
SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the microporous feature of the mobile medium layer is not obvious, the liquid affinity is poor, and the penetration effect o

Method used

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  • Time temperature indicator and manufacturing method thereof
  • Time temperature indicator and manufacturing method thereof
  • Time temperature indicator and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] refer to image 3 , in terms of structure, the structure of the time temperature indicating device of embodiment 1 is the same as image 3 The structure of the embodiment shown in is the same;

[0073] In terms of material, the release layer 10 is release paper; the adhesive layer 20 is acrylic resin; the base layer 30 is aluminum foil; the adhesive layer 40 is hot melt adhesive; the anti-solvent layer 42 is unstretched high-density polyethylene film; the lower interlayer 54 is unstretched high-density polyethylene; the sandwich layer 56 is a medium-density polyethylene filled with white hydrophobic silicon dioxide, and its initial color is white; the upper interlayer 58 is PET; the ink layer 62 is Ink; barrier layer 90 is hot stamping anodized aluminum; phase change material 80 is a mixture of pelargonic acid and No. 4 Sudan Red with a freezing point of 11°C.

[0074] The working principle of the time temperature indicating device is:

[0075] Before pressing to act...

Embodiment 2

[0078] refer to image 3 , in terms of structure, the structure of the time temperature indicating device of embodiment 2 is the same as image 3 The structure of the embodiment shown in is the same;

[0079] In terms of material, the release layer 10 is release paper; the adhesive layer 20 is acrylic resin; the base layer 30 is aluminum foil; the adhesive layer 40 is hot melt adhesive; the anti-solvent layer 42 is BOPP film; the lower interlayer 54 is BOPP film The sandwich layer 56 is medium density polyethylene filled with blue Prussian blue, and its initial color is blue; the upper interlayer 58 is a BOPP film; the ink layer 62 is ink; the barrier layer 90 is paraffin; the phase change material 80 has A mixture of lauryl alcohol and a red oil-soluble dye with a freezing point of 24°C.

[0080] The working principle of the time temperature indicating device is:

[0081] Before pressing to activate, the user can see the initial color (blue) of the sandwich layer 56 throug...

Embodiment 3

[0084] refer to figure 1 , in terms of structure, the structure of the time temperature indicating device of embodiment 3 is the same as figure 1 The structure of the embodiment shown in is the same;

[0085]In terms of material, the release layer 10 is release paper; the adhesive layer 20 is acrylic resin; the base layer 30 is aluminum foil; Background color, this background color corresponding time display window 66 is set; Lower interlayer 54 is PET; Sandwich layer 56 is the low-density polyethylene that is filled with inorganic pigment, and it is transparent film; Upper interlayer 58 is PET; Ink layer 62 is ink; The barrier layer 90 is silicone; the phase change material 80 is a mixture of lauryl alcohol and yellow oil-soluble dye with a freezing point of 24°C.

[0086] The working principle of the time temperature indicating device is:

[0087] Before pressing and activating, the user can see the printed background color (blue) on the transparent indicating layer 50 th...

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Abstract

The invention discloses a time temperature indicator and a manufacturing method thereof. The time temperature indicator comprises a substrate layer, a bonding layer, an indication layer, a phase-change material and a blocking layer, wherein part of the indication layer forms a convex hull, and the convex hull is provided with a storage room; the indication layer comprises at least two interlayers and a sandwich layer arranged between the two interlayers, the interlayer between the sandwich layer and the bonding layer is a dense film layer, a notch passing through the sandwich layer is arranged on the dense film layer, and a liquid channel is communicated between the storage room and the notch; the phase-change material is located in the storage room, and the blocking layer is arranged between the phase-change material and the notch; and the liquid phase-change material can press the blocking layer broken under effects of an external force to enter the liquid channel and be penetrated in the sandwich layer through the notch, and the penetration length to the time length of the liquid phase-change material on the sandwich layer is in direct proportion. Due to the time temperature indicator of the invention, the liquid phase-change material can be prevented from passing through the interlayers to be penetrated in the sandwich layer.

Description

technical field [0001] The invention relates to the technical field of indicating devices, in particular to a time and temperature indicating device and a manufacturing method thereof. Background technique [0002] As we all know, items waiting for inspection such as blood bags, vaccines and meat food need to be stored in a specific temperature environment. If the storage environment temperature exceeds the upper critical temperature specified for the items to be inspected, the items to be inspected will quickly deteriorate. Consumers are using the above After the item to be inspected deteriorates, it will cause damage to the human body, and even cause death in severe cases. Therefore, it is necessary to use a time-temperature device to accurately record the time when the ambient temperature exceeds the upper critical temperature, so as to determine whether the stored items to be inspected are invalid. The existing time and temperature indicating device comprises a base lay...

Claims

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Application Information

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IPC IPC(8): G01K11/06
Inventor 刘永生吴伟军刘文恒曾海明许第军王斌何华尚要俊
Owner SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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