Nano loaded control release type perfume and its preparation method

A fragrance and nano technology, which is applied in the field of nano-loaded controlled-release fragrance and its preparation, can solve problems such as short use cycle, and achieve the effects of white texture, simple process and excellent slow-release performance.

Inactive Publication Date: 2007-08-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the limitations of the short service life of the existing fragrances, and to overcome the deficiencies in some existing technologies, aiming to provide a porous fragrance-loaded perfume with simple process, long-lasting fragrance release and high loading capacity. Hollow silica sustained-release system to prepare nano-loaded controlled-release flavors

Method used

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  • Nano loaded control release type perfume and its preparation method
  • Nano loaded control release type perfume and its preparation method
  • Nano loaded control release type perfume and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Put the 80mL spice mixture with the ratio of Indian linden essence and absolute ethanol as 1:10 in a single-necked flask, and connect 2.0g hollow SiO2 on the top of the flask. 2 The fragrance molecular trap (as shown in Figure 1), and continue heating in the water bath at the bottom of the flask, so that the temperature of the mixed liquid of the fragrance and absolute ethanol is kept at 80 ° C, and at the same time, a vacuum is drawn. After standing for 48 hours, the adsorption of the porous nano-hollow silica material to the Indian bodhi fragrance molecules is saturated, and finally the nano-loaded controlled-release fragrance loaded with the Indian bodhi fragrance molecules can be obtained after taking it out. From Figures 4 and 5, it can be clearly seen that the product of the present invention has better perfume storage and sustained release / controlled release performance than the perfume with white carbon black as the carrier.

Embodiment 2

[0039] Place the 25mL mixture of brandy essence and acetone at a ratio of 1:1 in a single-necked flask, and connect 2.5g of hollow SiO2 to the top of the flask. 2The fragrance molecular trap (as shown in Figure 1), and continue heating in the water bath at the bottom of the flask, so that the temperature of the mixed liquid of the fragrance and absolute ethanol is kept at 60 ° C, and at the same time, a vacuum is drawn. After being placed continuously for 10 hours, the adsorption of the brandy fragrance molecules by the porous nano hollow silica material is saturated, and finally the nano-loaded controlled-release fragrance loaded with the brandy fragrance molecules is obtained. The product of the present invention has better fragrance storage and sustained release / controlled release performance than the fragrance with white carbon black as the carrier, and its effective release time exceeds 60 days.

Embodiment 3

[0041] Put the 1500mL spice mixture with the ratio of Mingzao essence and methanol at 1:100 in a single-necked flask, and connect a 1.5g hollow SiO2 to the top of the flask. 2 The fragrance molecular trap (as shown in Figure 1), and continue heating in the water bath at the bottom of the flask, so that the temperature of the mixed liquid of fragrance and absolute ethanol is kept at 90 ° C, and at the same time, vacuumize. After standing for 100 hours, the adsorption of the porous nano hollow silica material to the Indian linden fragrance molecules is saturated, and finally the nano-loaded controlled-release fragrance loaded with bright soap fragrance molecules is obtained. The product of the present invention has better fragrance storage and sustained release / controlled release performance than the fragrance with white carbon black as the carrier, and its effective release time exceeds 80 days.

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Abstract

The invention relates to nanometer loading controlled releasing essence and the method for preparing the same, belonging to essence preparation field. The microcapsule technical essence is characterized by bad stability, not good controlled releasing performance, short fragrance retention time, and great application limit; and the product with better performance is expensive and difficult to prepare. The invention is to provide an essence- loaded porous hollow silicon dioxide controlled releasing system which is characterized by simple process and long essence retention time. The process for preparation comprises: dissloving essence or perfume compounds with different flavour into proper organic solvent, putting porous hollow nanometer silicon dioxide into it for immersion or putting into self- produced device for adsorption, filtering, drying and getting essence- loaded porous hollow controlled releasing system. The nanometer loading controlled releasing essence is suitable for demostic, artifical fabrics, paper making or air cleaning for flavour fixation and prolonging effective releasing cycle of essence flavour.

Description

technical field [0001] The invention belongs to the field of perfume preparation, and in particular relates to a nano-loaded controlled-release perfume with porous nano-hollow silicon dioxide as a carrier and a preparation method thereof. Background technique [0002] Fragrances are usually composed of some volatile compounds. Due to their different smells, they can bring various fragrances to people's daily life, thus delighting our life. However, with the continuous improvement of people's living standards, people not only continuously increase the demand for essences and spices, but also have higher and higher requirements for the quality of daily essences. A large number of production and applications have emerged. [0003] At present, people study the application of slow release of spices and often use microencapsulation technology to wrap solid, liquid or gaseous substances in tiny containers (Hong K, Park S, Preparation of polyurethanemicrocapsules with different sof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/00
Inventor 陈建峰王洁欣丁浩旻
Owner BEIJING UNIV OF CHEM TECH
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