Manufacturing method of ice bag for preserving biological products

A manufacturing method and technology of ice packs, which are applied in the field of preservation and distribution, can solve the problems of narrow phase transition temperature, high cost, and short cold storage time of ice pack cold storage agents, and achieve the effects of improving moisture retention, low cost, and remarkable cold storage effect

Active Publication Date: 2013-07-10
浙江赛灵特医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ice pack cold storage agent prepared by the above technical scheme has defects such as short cold storage time, high cost, and narrow phase transition temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Under normal pressure, use tap water as solvent, heat to about 80°C, prepare hot water to make a solution containing 0.1g / 100mL agar powder, then add 1.0mL / 100mL polyethylene glycol while it is hot, stir well and add 3.0g / 100mL of water-absorbent resin combined with polyacrylate and polyvinyl alcohol, stirred and left for 10 minutes to form a gel-like cooling agent. Pack the gel-like cooling agent into bags, put it into a refrigerator at -10℃~-20℃ after cooling, and freeze for more than 12 hours. The phase transition temperature of the cold storage agent is -5.2°C, and the ice pack maintains the temperature below 5°C for about 7.5 hours in an environment of 18°C.

Embodiment 2

[0032] Use tap water as a solvent, heat it to about 50°C, and prepare hot water into a solution containing 0.5g / 100mL magnesium lithium silicate (do not add polyethylene glycol (that is, the amount of polyethylene glycol added is 0 mL / 100mL)) , after fully stirring, add 1g / 100mL polyacrylate water-absorbing resin, and let it stand for 10 minutes after stirring to form a gel-like cooling agent. Pack the gel-like cooling agent into bags, put it into a refrigerator at -10℃~-20℃ after cooling, and freeze for more than 12 hours. The phase transition temperature of the cold storage agent is about 0°C, and the ice pack maintains the temperature below 5°C for about 12 hours in an environment of 18°C.

Embodiment 3

[0034] Use purified water as solvent, heat to boiling (about 100°C), then prepare hot water to make a solution containing 0.5g / 100mL agar powder, fully dissolve, add 2.0mL / 100mL polyethylene glycol while hot, stir well and then add 2.0g / 100mL polyvinyl alcohol water-absorbing resin, after stirring, let it stand for 10 minutes to form a gel-like cooling agent. Pack the gel-like cooling agent into bags, put it into a freezer at -10℃~-20℃ after cooling, and freeze for more than 12 hours. The phase transition temperature of the cold storage agent is -4.0°C, and the temperature is kept below 5°C for about 8.5 hours in an environment of 18°C.

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Abstract

The invention discloses a manufacturing method of an ice bag for preserving biological products. The manufacturing method comprises the following steps: 1) adding a thickener into hot water or boiling water, and fully stirring till dissolution; 2) adding high molecular water-absorbing resin into a solution in the step 1) while hot, stirring, then standing to carry out full reaction and imbibition on the high molecular water-absorbing resin and the thickener, and forming a gelatinous solid, wherein the reaction time is 5-30minutes; and 3) bagging the gelatinous solid in the step 2), cooling, and then placing into a cold storage, a refrigerating cabinet or a refrigerator at the temperature of -10 DEG C to -20 DEG C for freezing for above 12hours. The invention provides a simple, convenient and high-efficient manufacturing method of a high molecular cold storage agent, namely the manufacturing method of the ice bag for preserving the biological products. The prepared cold storage agent has the advantages of high repeatability, great freezing-thawing phase change latent heat, long cold storage time and fast water absorption speed, and furthermore, the cost of the process is low; and by changing the added thickener, the different phase change temperatures can be obtained for meeting various different application requirements.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency and economical cold storage agent manufacturing of ice packs, and in particular relates to a manufacturing method of ice packs for storing biological products, and is especially suitable for the storage and distribution of biological products, medical drugs, vaccines and the like. Background technique [0002] With the continuous advancement of science and technology and the renewal of refrigeration technology, the refrigerated logistics industry has gradually developed and expanded. It is based on refrigeration technology and refrigeration technology as a means to realize logistics and transportation under low temperature conditions. Cold chain logistics is mainly aimed at the transportation of food, vegetables, fresh meat, beverages and flowers, as well as the low-temperature protection distribution of biological products, medical drugs, vaccines, etc. [0003] For long-distance product ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
CPCY02E60/147Y02E60/14
Inventor 骆晨涛
Owner 浙江赛灵特医药科技有限公司
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