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Preparation method of cationic perfume microcapsules

A fragrance microcapsule and cation technology, which is applied in the direction of microcapsule preparation, microsphere preparation, textile and papermaking, etc., can solve the problems of short fragrance retention time and low utilization rate, and achieve simple and easy preparation method, low cost, and reduce churn effect

Active Publication Date: 2017-09-26
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problems of short fragrance retention time and low utilization rate when traditional fragrance microcapsules dye and finish fabrics, the present invention provides a preparation method of cationic fragrance microcapsules

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) preparation of raw materials, take by weighing the fragrance essential oil of 10g, the fabric dyeing and finishing agent of 40g and the water of 80g, mix uniformly, form mixed solution;

[0018] (2) Emulsification and shearing, weigh 0.6g of A-9 cross-linking agent and add it to the mixed solution prepared in step (1), and use a high-shear emulsifier to shear at a shear rate of 10000r / min for 25min to form a homogeneous phase solution;

[0019] (3) adjust the pH, dropwise add glacial acetic acid of analytical grade to the homogeneous solution prepared in step (2) and adjust the pH to 4-5 to form an acidic homogeneous solution;

[0020] (4) Preliminary wall building, take by weighing 3g of polyurethane prepolymer and 9g of water, after fully mixing, add drop by drop in the acidic homogeneous solution prepared in step (3), control the rate of addition at every drop of 25-35s, Use a 30°C water bath to heat, while controlling the stirring speed at 450r / min until the dr...

Embodiment 2

[0023] (1) preparation of raw materials, take by weighing the fragrance essential oil of 10g, the fabric dyeing and finishing agent of 50g and the water of 100g, mix uniformly, form mixed solution;

[0024] (2) Emulsification and shearing, weigh 0.8g of A-9 crosslinking agent and add it to the mixed solution prepared in step (1), and use a high-shear emulsifier to shear at a shear rate of 10000r / min for 25min to form a homogeneous phase solution;

[0025] (3) adjust the pH, dropwise add glacial acetic acid of analytical grade to the homogeneous solution prepared in step (2) and adjust the pH to 4-5 to form an acidic homogeneous solution;

[0026] (4) Preliminary wall building, take by weighing 4g of polyurethane prepolymer and 16g of water, after fully mixing, add drop by drop in the acidic homogeneous solution prepared in step (3), control the rate of addition at every drop of 25-35s, Use a 30°C water bath to heat, while controlling the stirring speed at 450r / min until the d...

Embodiment 3

[0029] (1) preparation of raw materials, take by weighing the fragrance essential oil of 10g, the fabric dyeing and finishing agent of 60g and the water of 120g, mix uniformly, form mixed solution;

[0030] (2) Emulsification and shearing, weigh 1g of A-9 cross-linking agent and add it to the mixed solution prepared in step (1), and use a high-shear emulsifier to shear at a shear rate of 10000r / min for 25min to form a homogeneous solution ;

[0031] (3) adjust the pH, dropwise add glacial acetic acid of analytical grade to the homogeneous solution prepared in step (2) and adjust the pH to 4-5 to form an acidic homogeneous solution;

[0032] (4) Preliminary wall building, take by weighing 5g of polyurethane prepolymer and 20g of water, after fully mixing, add drop by drop in the acidic homogeneous solution prepared by step (3), control the rate of addition at every drop of 25-35s, Use a 30°C water bath to heat, while controlling the stirring speed at 450r / min until the dropwis...

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PUM

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Abstract

The invention relates to the field of microcapsules, in particular to a preparation method of cationic perfume microcapsules. The cationic perfume microcapsules are prepared according to the process steps: preparing raw materials, emulsifying and shearing, adjusting pH, building a wall for the first time, building a wall for the second time and preparing a final product. The perfume microcapsules prepared by the method are cationic, can be combined with anionic fiber fabric firmly and is not liable to fall off. Loss of the microcapsules on cloth is greatly reduced, and the fragrance retention property and the utilization rate of the perfume microcapsules are improved. The preparation method provided by the invention is simple and practical, low in cost, simple in aftertreatment process and favorable for propulsion of batch production.

Description

technical field [0001] The invention relates to the field of microcapsules, in particular to a preparation method of cationic fragrance microcapsules. Background technique [0002] Microcapsules are a kind of small spherical air bubbles with certain permeability, the outer layer is a semi-permeable membrane, and the inner layer is a water-containing inner core. After the core material is microencapsulated, it is isolated from the external environment, free from the influence of external temperature, humidity, oxygen and other factors, and the stability of the core material can be improved while maintaining its properties basically unchanged. Under certain conditions, Such as external stimuli such as friction and collision, the wall material is destroyed, and the core material is slowly released to achieve the purpose of slow release and controlled release. Since A.M.Sun invented sodium alginate / polylysine microcapsules, microcapsule technology has been widely used in the fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02D06M23/12D06M13/00D06M15/564
CPCB01J13/02D06M13/005D06M15/564D06M23/12
Inventor 刘阳李懿范陆锦纪俊玲
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS