CN105752462A - Desiccant packaging bag having humidity indication function and preparation method thereof - Google Patents
Desiccant packaging bag having humidity indication function and preparation method thereof Download PDFInfo
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- CN105752462A CN105752462A CN201410799350.9A CN201410799350A CN105752462A CN 105752462 A CN105752462 A CN 105752462A CN 201410799350 A CN201410799350 A CN 201410799350A CN 105752462 A CN105752462 A CN 105752462A
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Abstract
The invention provides a desiccant packaging bag having a humidity indication function and a preparation method thereof. The desiccant packaging bag is formed mainly by the mixing of poly vinyl alcohol (PVA) solution, cobalt chloride solution and ammonium chloride and the soaking and drying of filter paper. Humidity indication paper adheres to the outer surface of the packaging bag, so that the humidity can be judged visually through the humidity indication paper, and the desiccant packaging bag is favorable for effectively judging food packaging and making improvement and enables consumers to accurately identify food quality.
Description
Technical field
The invention belongs to desiccant field, be specifically related to a kind of desiccant package bags with humidity indicating function and preparation method thereof.
Background technology
Desiccant refers to remove the material of moisture in humid air.At present, desiccant is widely used in the every aspect in life, for instance in packaging for foodstuff, when suitable temperature and humidity, food go mouldy speed quickly, can slow down, adding after desiccant, speed of going mouldy；Electronic product causes burning under high humidity environment, produces bad, adds desiccant and can avoid under high humidity environment produced bad.Desiccant on market mainly has silica gel, montmorillonite, molecular sieve and mineral agent, this kind of desiccant absorbs moisture mainly by the mode of physical absorption, it addition, also have a class chemical drier, it is dried by being combined formation hydrate with water, for instance calcium sulfate and calcium chloride.
But, existing desiccant is in use, people cannot directly observe the content of the moisture identified in packaging bag, therefore, often occur due to packaging material improper use or packaging bag poor sealing, or owing to employing the desiccant of poor quality, cause moisture in packaging bag not reach the requirement of food fresh keeping, and make food moulding.
Summary of the invention
It is an object of the invention to provide a kind of desiccant package bags with humidity indicating function, while packaging desiccant, when ambient humidity is more than 50%, reagent paper reddens, and namely display exceeds standard.
The technical solution realizing the object of the invention is: a kind of desiccant package bags with humidity indicating function, indicates paper including packaging bag and humidity, and packaging bag is used for packing desiccant, and humidity instruction paper is fixed on packaging bag outer surface, and humidity paper is used for indicating humidity.
The humidity value of above-mentioned humidity paper instruction is 50%.
A kind of preparation method of the desiccant package bags with humidity indicating function, preparation process is as follows:
Step 1, preparation humidity instruction paper:
1-1) PVA solution, cobalt chloride solution, ammonium chloride solution and distilled water are at room temperature mixed, and stir, in above-mentioned mixed liquor, each constituent mass mark is respectively as follows: the cobalt chloride solution of the PVA solution of 20%-30%, 15%-25%, the ammonium chloride solution of 5%-15%, 30%-60% distilled water, mixed liquor total mass fraction is 100%.
1-2) filter paper is immersed in above-mentioned mixed solution, soak filter paper.
1-3) draining the solution on filter paper, filter paper is put into temperature and is set as in the baking oven of 50-70 DEG C, drying time is 30-50min, takes out filter paper, is humidity instruction paper.
Step 2, humidity indicate paper be fixed on packaging bag outer surface.
Above-mentioned steps 1-1) in, PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%.
The humidity value of above-mentioned humidity paper instruction is 50%.
The present invention compared with prior art, its remarkable advantage: (1) can be used for packing desiccant；(2) can indicate paper that humidity is judged intuitively by humidity intuitively, be conducive to effectively judging packaging for foodstuff and improving, provide the quality of precise Identification food quality simultaneously for consumer.
Accompanying drawing explanation
Fig. 1 is a kind of desiccant package bags preparation method flow chart with humidity indicating function of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of desiccant package bags with humidity indicating function, indicates paper including packaging bag and humidity, and packaging bag is used for packing desiccant, and humidity instruction paper is fixed on packaging bag outer surface, and humidity paper is used for indicating humidity.
The humidity value of above-mentioned humidity paper instruction is 50%.
In conjunction with Fig. 1, the preparation method of a kind of desiccant package bags with humidity indicating function, preparation process is as follows:
Step 1, preparation humidity instruction paper:
1-1) PVA solution, cobalt chloride solution, ammonium chloride solution and distilled water are at room temperature mixed, and stir, in above-mentioned mixed liquor, each constituent mass mark is respectively as follows: the cobalt chloride solution of the PVA solution of 20%-30%, 15%-25%, the ammonium chloride solution of 5%-15%, 30%-60% distilled water, mixed liquor total mass fraction is 100%.
1-2) filter paper is immersed in above-mentioned mixed solution, soak filter paper.
1-3) draining the solution on filter paper, filter paper is put into temperature and is set as in the baking oven of 50-70 DEG C, drying time is 30-50min, takes out filter paper, is humidity instruction paper.
Step 2, humidity indicate paper be fixed on packaging bag outer surface.
Above-mentioned steps 1-1) in, PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%.
The humidity value of above-mentioned humidity paper instruction is 50%.
Embodiment 1:
Weigh 25gPVA solution, 20g cobalt chloride solution, 10g ammonium chloride solution and 45g distilled water, after stirring, filter paper is immersed in solution, drain the solution on filter paper, filter paper is put in the baking oven that temperature is set as 70 DEG C, filter paper is taken out after 40min, now filter paper is blue, become the humidity paper with 50% humidity indicating function, humidity paper by 50% is respectively put under the humidity environment of 45% and 55%, humidity paper under 45% humidity environment is shown as blue, and the humidity paper under 55% humidity environment is shown in red.
Above-mentioned PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%
Embodiment 2:
Weigh 20gPVA solution, 25g cobalt chloride solution, 5g ammonium chloride solution and 50g distilled water, after stirring, filter paper is immersed in solution, drain the solution on filter paper, filter paper is put in the baking oven that temperature is set as 60 DEG C, filter paper is taken out after 30min, now filter paper is blue, become the humidity paper with 50% humidity indicating function, humidity paper by 50% is respectively put under the humidity environment of 45% and 55%, humidity paper under 45% humidity environment is shown as blue, and the humidity paper under 55% humidity environment is shown in red.
Above-mentioned PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%.
Embodiment 3:
Weigh 30gPVA solution, 15g cobalt chloride solution, 15g ammonium chloride solution and 40g distilled water, after stirring, filter paper is immersed in solution, drain the solution on filter paper, filter paper is put in the baking oven that temperature is set as 50 DEG C, filter paper is taken out after 50min, now filter paper is blue, become the humidity paper with 50% humidity indicating function, humidity paper by 50% is respectively put under the humidity environment of 45% and 55%, humidity paper under 45% humidity environment is shown as blue, and the humidity paper under 55% humidity environment is shown in red.
Above-mentioned PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%.
Temperature indicates paper paste at packaging bag outer surface, and packaging bag is used for packing desiccant.Can indicate paper that humidity is judged intuitively by humidity intuitively, be conducive to effectively judging packaging for foodstuff and improving, provide the quality of precise Identification food quality simultaneously for consumer.
Claims (5)
1. the desiccant package bags with humidity indicating function, it is characterised in that: including packaging bag and humidity instruction paper, packaging bag is used for packing desiccant, and humidity instruction paper is fixed on packaging bag outer surface, and humidity paper is used for indicating humidity.
2. the desiccant package bags with humidity indicating function according to claim 1, it is characterised in that: the humidity value of above-mentioned humidity paper instruction is 50%.
3. the preparation method with the desiccant package bags of humidity indicating function, it is characterised in that preparation process is as follows:
Step 1, preparation humidity instruction paper:
1-1) PVA solution, cobalt chloride solution, ammonium chloride solution and distilled water are at room temperature mixed, and stir, in above-mentioned mixed liquor, each constituent mass mark is respectively as follows: the cobalt chloride solution of the PVA solution of 20%-30%, 15%-25%, the ammonium chloride solution of 5%-15%, 30%-60% distilled water, mixed liquor total mass fraction is 100%；
1-2) filter paper is immersed in above-mentioned mixed solution, soak filter paper；
1-3) draining the solution on filter paper, filter paper is put into temperature and is set as in the baking oven of 50-70 DEG C, drying time is 30-50min, takes out filter paper, is humidity instruction paper；
Step 2, humidity indicate paper be fixed on packaging bag outer surface.
4. the preparation method of the desiccant package bags with humidity indicating function according to claim 3, it is characterized in that: above-mentioned steps 1-1) in, PVA solution Solute mass fraction is 10%, and cobalt chloride solution Solute mass fraction is 20%, and ammonium chloride solution Solute mass fraction is 20%.
5. the desiccant package bags with humidity indicating function according to claim 3, it is characterised in that: the humidity value of above-mentioned humidity paper instruction is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410799350.9A CN105752462A (en) | 2014-12-19 | 2014-12-19 | Desiccant packaging bag having humidity indication function and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410799350.9A CN105752462A (en) | 2014-12-19 | 2014-12-19 | Desiccant packaging bag having humidity indication function and preparation method thereof |
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| CN105752462A true CN105752462A (en) | 2016-07-13 |
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| CN201410799350.9A Pending CN105752462A (en) | 2014-12-19 | 2014-12-19 | Desiccant packaging bag having humidity indication function and preparation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58216936A (en) * | 1982-05-18 | 1983-12-16 | Shin Nisso Kako Co Ltd | Humidity indicator |
| JPS59170749A (en) * | 1983-03-07 | 1984-09-27 | Matsushita Electric Works Ltd | Humidity detecting body and its manufacture |
| JP2000107551A (en) * | 1998-10-05 | 2000-04-18 | Ooe Kagaku Kogyo Kk | Desiccant |
| JP2000167335A (en) * | 1998-12-07 | 2000-06-20 | Dia Kasei:Kk | Desiccant packaging bag with humidity indication piece |
| CN1365447A (en) * | 1999-07-30 | 2002-08-21 | 莱沃西尔股份公司 | Moisture indicators for the absorbent capacity of a dessicant |
| JP2005061850A (en) * | 2003-08-12 | 2005-03-10 | Ishizaki Shizai Kk | Humidity indicator, and moisture absorption tool |
| CN101432617A (en) * | 2006-04-26 | 2009-05-13 | 共同印刷株式会社 | Coating for humidity indicator, method for production of the coating, humidity indicator using the coating |
| JP2011185745A (en) * | 2010-03-09 | 2011-09-22 | Kyodo Printing Co Ltd | Humidity indicator, method for manufacturing the same, and coating for humidity indicator used in the manufacturing method |
| CN102539429A (en) * | 2010-12-31 | 2012-07-04 | 财团法人工业技术研究院 | Temperature indication card and manufacture method thereof |
| CN103901035A (en) * | 2014-04-23 | 2014-07-02 | 晏石英 | Dehumidification humidity indicator |
-
2014
- 2014-12-19 CN CN201410799350.9A patent/CN105752462A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58216936A (en) * | 1982-05-18 | 1983-12-16 | Shin Nisso Kako Co Ltd | Humidity indicator |
| JPS59170749A (en) * | 1983-03-07 | 1984-09-27 | Matsushita Electric Works Ltd | Humidity detecting body and its manufacture |
| JP2000107551A (en) * | 1998-10-05 | 2000-04-18 | Ooe Kagaku Kogyo Kk | Desiccant |
| JP2000167335A (en) * | 1998-12-07 | 2000-06-20 | Dia Kasei:Kk | Desiccant packaging bag with humidity indication piece |
| CN1365447A (en) * | 1999-07-30 | 2002-08-21 | 莱沃西尔股份公司 | Moisture indicators for the absorbent capacity of a dessicant |
| JP2005061850A (en) * | 2003-08-12 | 2005-03-10 | Ishizaki Shizai Kk | Humidity indicator, and moisture absorption tool |
| CN101432617A (en) * | 2006-04-26 | 2009-05-13 | 共同印刷株式会社 | Coating for humidity indicator, method for production of the coating, humidity indicator using the coating |
| JP2011185745A (en) * | 2010-03-09 | 2011-09-22 | Kyodo Printing Co Ltd | Humidity indicator, method for manufacturing the same, and coating for humidity indicator used in the manufacturing method |
| CN102539429A (en) * | 2010-12-31 | 2012-07-04 | 财团法人工业技术研究院 | Temperature indication card and manufacture method thereof |
| CN103901035A (en) * | 2014-04-23 | 2014-07-02 | 晏石英 | Dehumidification humidity indicator |
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Application publication date: 20160713 |