Cool feeling microcapsule and preparation method thereof

A technology of microcapsules and cool feeling, which is applied in the field of microcapsules and its preparation, which can solve the problems of easy volatilization of cold feeling substances, affect the use effect, and easy decomposition of light and heat, and achieve the effects of low cost, prolonging the use time and avoiding reactions

Active Publication Date: 2013-04-17
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the cold-sensing agent ingredients are mainly xylitol, menthol, etc. When they are dissolved in water, they will produce an endothermic reaction, thus reducing the temperature. When the fabric contains cold-sensing substances, these cold-sensing substances absorb the body’s Sweat produces an endothermic reaction, which makes the skin cool and lowers the skin surface temperature, but most of the cold substances are volatile and easy to decompose when exposed to light and heat, which affects its use effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Aqueous phase preparation: add 6g polypropylene alcohol 400, 6g Tween-80 and 300g distilled water to the container in turn, stir evenly, add triethanolamine dropwise to adjust the pH to 8-9, save for later use; organic phase preparation: add 5g p-phenylene Diformyl chloride and 15g of the core material were dissolved in 100mL of cyclohexane respectively; 25mL of the organic phase was dispersed in 175mL of the water phase for emulsification, the stirring speed was 2000r / min, and the emulsification time was 20min; under the condition of constant stirring at 30°C, the 50mL cyclohexane solution dissolved with 5g of diethylenetriamine was added to the emulsification system at a constant speed, and the pH value of the system was kept constant until the reaction was completed; finally, it was filtered, washed, and dried to obtain cool-feeling microcapsules.

[0021] Determination of core material content in microcapsules:

[0022] Put the microcapsules in a flask, add 5 times ...

Embodiment 2

[0027] Aqueous phase preparation: add 4.5g polypropylene alcohol 400, 4.5g Tween-80 and 300g distilled water to the container in turn, stir evenly, add triethanolamine dropwise to adjust the pH to 8-9, save for later use; organic phase preparation: put 5g Dissolve terephthaloyl chloride and 20g core material in 100mL cyclohexane respectively; disperse 25mL organic phase in 200mL water phase, emulsify, stirring speed 2000r / min, emulsification time 20min; , Add 62.5mL cyclohexane solution containing 6.25g of diethylenetriamine at a constant speed into the emulsification system, keep the pH value of the system constant until the reaction ends; finally filter, wash, and dry to obtain cool-feeling microcapsules.

[0028] The embedding rate of this product is 72.6% (the measurement method is as in Example 1), and the irregular spheres with a particle size of 100-250nm have a good release effect. In summer, the cool feeling microcapsules are placed indoors, and the cool feeling can st...

Embodiment 3

[0030] Aqueous phase preparation: add 3g polypropylene alcohol 400, 3g Tween-80 and 300g distilled water to the container in turn, stir evenly, add triethanolamine dropwise to adjust the pH to 8-9, save for later use; organic phase preparation: add 5g p-phenylene Diformyl chloride and 25g of the core material were respectively dissolved in 100mL of cyclohexane; 25mL of the organic phase was dispersed in 225mL of the water phase for emulsification, the stirring speed was 2000r / min, and the emulsification time was 20min; under the condition of constant stirring at 30°C, the 75mL cyclohexane solution dissolved with 7.5g of diethylenetriamine was added into the emulsification system at a constant speed, and the pH value of the system was kept constant until the reaction was completed; finally, it was filtered, washed, and dried to obtain cool-feeling microcapsules.

[0031] The embedding rate of this product is 66.33% (the measurement method is as in Example 1), and the irregular s...

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PUM

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Abstract

The invention provides a cool feeling microcapsule and a preparation method thereof. The cool feeling microcapsule adopts one or several of menthol, menthone and eucalyptus as a core material, adopts paraphthaloyl chloride and diethylenetriamine as a wall material, and adopts interfacial polymerization to wrap the microcapsule in order to prepare the cool felling microcapsule. The preparation method for the cool feeling microcapsule has safe and simple technique and low cost; and the capsulation technique can improve the performance of cool feeling materials, can control the release speed thereof, and can widen the application range thereof.

Description

technical field [0001] The invention relates to a microcapsule and a preparation method thereof, in particular to a cool feeling microcapsule and a preparation method thereof. Background technique [0002] One of the main functions of clothes is the comfort of wearing, especially in summer, the fabric finished by cooling agent can make the human body produce a cool and comfortable feeling. At present, most of the cold-sensing agent ingredients are mainly xylitol, menthol, etc. When they are dissolved in water, they will produce an endothermic reaction, thus reducing the temperature. When the fabric contains cold-sensing substances, these cold-sensing substances absorb the body’s Sweat produces an endothermic reaction, thereby making the skin feel cool and reducing the skin surface temperature, but most cold-sensing substances are volatile and easy to decompose when exposed to light and heat, which affects its use effect. Contents of the invention [0003] The technical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/12B01J13/14
Inventor 纪俊玲蒋海华汪媛姚超马志辉
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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