Nanometer essence capsule and preparation method thereof

An essence capsule and nano technology, applied in the field of nano essence capsule and its preparation, can solve the problems such as the persistence of aroma function needs to be improved, and achieve the effects of good hand feeling and washability, good utilization rate of raw materials and high surface adhesion.

Inactive Publication Date: 2012-08-15
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the size of most of the fragrance capsules available on the market, including literature and patent reports, is at the micron level. In order to improve the adhesion strength between th

Method used

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  • Nanometer essence capsule and preparation method thereof
  • Nanometer essence capsule and preparation method thereof
  • Nanometer essence capsule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Mix 200ml deionized water, 15g methyl methacrylate, 5g cologne essence and 6g TO5, and emulsify and disperse at a high speed at 8000 rpm for 30 minutes to obtain a fragrance emulsion containing methyl methacrylate monomer; Transfer to a water bath with a temperature of 60°C, pass through an inert protective gas, maintain a mechanical stirrer at 800 rpm, make 0.9g of ammonium persulfate into an aqueous solution with a mass concentration of 5%, and drop it within 1 hour, continue After reacting for 3 hours, the essence microcapsules were obtained by natural cooling.

Embodiment 2

[0031] Mix 50ml deionized water, 1.5g styrene, 5g rose essence and 0.75g TO7, and emulsify and disperse at a high speed at 15000 rpm for 10 minutes to obtain a fragrance emulsion containing styrene monomer; transfer the fragrance emulsion to a temperature of In a water bath at 90°C, pass in an inert protective gas, keep a mechanical stirrer at 1200 rpm, make 0.025g of potassium persulfate into an aqueous solution with a mass concentration of 0.5%, drop it within 2 hours, and continue the reaction for 4 hours. Essence microcapsules are obtained by natural cooling.

Embodiment 3

[0033] Mix 100ml deionized water, 3g styrene, 3g butyl methacrylate, 5g mint essence, 1g TO5 and 1.5g TO7, and emulsify and disperse at a high speed of 12000 rpm for 25 minutes to obtain butyl methacrylate and Essence emulsion of styrene monomer; transfer the essence emulsion to a water bath with a temperature of 70°C, pass through an inert protective gas, keep mechanical stirring at 1000 rpm, and prepare 0.45g of ammonium persulfate with a mass concentration of 2.5%. The aqueous solution is added dropwise within 1.5 hours, and the reaction is continued for 3.5 hours, and the essence microcapsules are obtained after natural cooling.

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Abstract

The invention discloses a nanometer essence capsule and a preparation method of the nanometer essence capsule. The preparation method comprises the steps that under the action of high-speed emulsion dispersion, the nanometer essence capsule is prepared by conducting free radical polymerization reaction on vinyl monomer under the action of an initiator, wherein the mass ratio of the vinyl monomer to essence to the initiating agent is (0.3-3):1: (0.005-0.18) and the initiator is a water-soluble peroxide initiator. The nanometer essence capsule disclosed by the invention has good heat resistanceand therefore is particularly suitable for high-temperature setting process of cotton fabrics; the nanometer essence capsule has very good permeability and very high surface adhesive force and therefore can be directly applied in perfuming finishing of the fabrics or further composited with other finishing agents to be applied in the perfuming finishing of the cotton fabrics; and a binding agent does not need to be added in the perfuming finishing process, so that the production cost is lowered.

Description

technical field [0001] The invention relates to an essence microcapsule, in particular to a nano essence capsule with a vinyl polymer as a wall material and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the improvement of living standards, the demand for functional textiles is becoming more and more strong, which has become an important direction for the development of textiles. Natural cotton fabrics are favored by more and more consumers because of their better comfort and health. Functional textiles refer to fabrics with special functions, such as bactericidal function, aromatic function, smooth function, temperature regulation function and so on. Functional cotton fabric has become a popular textile product and has broad development prospects. Because cotton fabrics have to undergo high-temperature setting treatment, usually the setting temperature is as high as 150°C, and fragrances usually have a lower ...

Claims

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Application Information

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IPC IPC(8): C11B9/02B01J13/14
Inventor 石光李志诚郑旭彬
Owner SOUTH CHINA NORMAL UNIVERSITY
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