Perfume microcapsule dispersed coating solution and perfumed non-woven fabrics prepared thereby

A fragrance microcapsule and coating liquid technology, which is applied in the field of fragrance non-woven fabrics, can solve the problems of toxicity of organic crosslinking agents and increase manufacturing costs, and achieve the effects of extending shelf life, suppressing volatilization loss, and prolonging fragrance retention time

Active Publication Date: 2011-03-09
SHENZHEN SELEN SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the complex coacervation method of the coagulation microencapsulation method in the prior art, it is necessary to add an aldehyde organic cross-linking agent to solidify the capsule wall after freezing, and the organic cross-linking agent is toxic to the human body; the microcapsule suspension needs to be filtered and dried immediately. For the processing of non-woven fabrics, re-dispersion processing is required, which increases the manufacturing cost and other problems. An environmentally friendly, non-toxic, low-cost and stable fragrance microcapsule dispersion coating solution is proposed. The fragrance microcapsule dispersion coating solution does not need to be processed. Freeze and use an organic cross-linking agent to solidify the capsule wall, and the capsule can be kept in a dispersed state for a certain period of time, and can be directly coated with non-woven fabrics during coating and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Mix 2 g of lemon oil with 50 ml of 4% A-type gelatin solution, stir and emulsify for 30 minutes to obtain an O / W dispersed emulsion; transfer the emulsion to a 250 ml beaker, put it in a water bath at 50-55 ° C, and add 4% gum arabic solution 50ml, stir gently to make the mixture even; at a stirring rate of 400 rpm, add 10% acetic acid solution dropwise to the emulsion to adjust the pH of the system to 4.0; after coagulation for 30min, take a sample of the microcapsule emulsion and observe the The particle size of the capsule is 3-50 μm; the temperature of the reaction system is lowered to room temperature, 10% polyvinyl alcohol 0588 solution is added, and after stirring and melting, a stable fragrance microcapsule emulsion is obtained.

[0034] Apply the microcapsule emulsion prepared above to the non-woven fabric by scraping, and dry it at 60°C for 15 minutes to obtain the scented non-woven fabric used to prepare masks. The test fragrance retention time is m...

Embodiment 2

[0035]Example 2: Mix 2 g of sweet orange sesame oil with 50 ml of 4% A-type gelatin solution, stir and emulsify for 30 minutes to obtain an O / W dispersion emulsion; transfer the emulsion to a 250 ml beaker, put it in a water bath at 50-55 ° C, and add 4% alginic acid 50ml of sodium solution, stirred gently to make the mixture uniform; at a stirring rate of 600 rpm, add 10% acetic acid solution dropwise to the emulsion to adjust the pH of the system to 4.1; Observe that the particle size of the microcapsules is 2-21 μm; lower the temperature of the reaction system to room temperature, add 5% hydroxyethyl cellulose, stir and dissolve, and obtain a stable fragrance microcapsule emulsion.

[0036] Apply the above-prepared microcapsule emulsion to the non-woven fabric by scraping, and dry it at 150°C for 1 minute to obtain a scented non-woven fabric for making masks. The test fragrance retention time is more than 3 months, and the fragrance does not deteriorate .

Embodiment 3

[0037] Example 3: Mix 2 g of sweet orange sesame oil with 50 ml of 4% type A gelatin solution, stir and emulsify for 30 minutes to obtain an O / W dispersed emulsion; transfer the emulsion to a 250 ml beaker, place it in a water bath at 50-55 ° C, and add 4% carboxymethyl 50ml of sodium cellulose solution, stirred gently to make the mixture uniform; at a stirring rate of 600 rpm, add 10% acetic acid solution dropwise to the emulsion to adjust the pH of the system to 4.1; after coagulation for 30min, take a microcapsule emulsion sample, The particle size of the microcapsules observed by an optical microscope is 1-18 μm; the temperature of the reaction system is lowered to room temperature, 5% polyvinyl alcohol 2488 is added, and after stirring and melting, a stable fragrance microcapsule emulsion is obtained.

[0038] Apply the microcapsule emulsion prepared above to the non-woven fabric by roller coating, and dry it at 100°C for 8 minutes to obtain the scented non-woven fabric us...

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Abstract

The invention relates to perfume microcapsule dispersed coating solution and a preparation method thereof, and perfumed non-woven fabrics prepared thereby. The perfume microcapsule dispersed coating solution comprises hydrophobic perfume liquid, coagel for coating the perfume liquid, and a dispersion stabilizer, wherein, the coagel comprises hydrophilic albumin glue and anionic hydrophilic colloid. The preparation method of the coating solution comprises the following steps: firstly, emulsifying and dispersing the hydrophobic perfume liquid in hydrophilic albumin glue solution, and then adding anionic hydrophilic colloid solution after full emulsification and dispersion to obtain perfume dispersed solution; secondly, adding acid solution to the perfume dispersed solution, and adjusting the pH value until the dispersed solution is condensed to obtain perfume microcapsules; and finally adding the dispersion stabilizer to the obtained perfume microcapsule solution so that the perfume microcapsules are emulsified and dispersed to obtain the perfume microcapsule dispersed coating solution. The perfumed non-woven fabrics prepared by the perfume microcapsule dispersed coating solution have the advantages of long fragrance retention time, no toxicity and stable fragrance.

Description

technical field [0001] The invention relates to a fragrance microcapsule dispersion coating liquid and a fragrance non-woven fabric prepared therefrom, in particular to a stably dispersed emulsified fragrance microcapsule dispersion coating liquid and a fragrance non-woven fabric prepared therefrom. Background technique [0002] When general spices are stored or processed into aromatic products, the spices are exposed to the environment, causing the fragrance components to volatilize rapidly and keep the fragrance for a short time; and the spices are in contact with the air in a large area, which is easily oxidized, causing the fragrance to deteriorate and the shelf life is short. Fragrance microcapsules are a product that wraps the core material of the fragrance through the wall material, which plays a role in slow release and protection of the fragrance. At present, the common preparation methods of spice microcapsules include spray-drying microencapsulation method and agg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15D06M15/03D06M15/13D06M15/09D06M15/333D06M13/00B01J13/10
Inventor 张原管映亭杜学晓
Owner SHENZHEN SELEN SCI & TECH CO LTD
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