Preparation method of antibacterial chitosan essential oil microcapsules

A technology of microcapsules and chitosan is applied in the field of preparation of antibacterial chitosan essential oil microcapsules, which can solve the problems of conflict of downstream products, low application efficiency of natural essential oils and the like, and achieve good effects.

Active Publication Date: 2017-09-15
TIANJIN CHENGJIAN UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of preparation method of antimicrobial chitosan essential oil microcapsule, in order to guarantee to bring into play the antibacterial effect of natural essential oil of core material and wall material chitosan, chitosan quaternary ammonium salt itself, solve the problem of natural essential oil Problems such as low application efficiency and conflicts with downstream products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The design concept of the preparation method of the antibacterial chitosan essential oil microcapsules of the present invention is to adopt the single coacervation method, use chitosan and chitosan quaternary ammonium salt as composite wall materials, and use natural essential oils with antibacterial effects as core materials Preparation of high-efficiency antibacterial chitosan essential oil microcapsules. The raw materials used in the microcapsules are natural products, which have high-efficiency antibacterial effect, good slow-release performance and kneading release characteristics, and can be directly used in fabric finishing and care products with related functions.

[0022] The preparation method of antibacterial type chitosan essential oil microcapsule comprises the following steps:

[0023] (1) preparation of chitosan aqueous solution

[0024] Weigh 0.5-2 parts of acetic acid and dissolve in 70-90 parts of deionized water to prepare an aqueous solution of acet...

Embodiment 1

[0034] Weigh 0.5 parts of acetic acid and dissolve in 70 parts of deionized water to prepare an aqueous solution of acetic acid. Weigh 0.5 part of viscosity average molecular weight as 1×10 4 1. The chitosan whose deacetylation degree is 80% is fully dissolved in the prepared acetic acid aqueous solution under stirring to obtain the chitosan aqueous solution. Weigh 5 parts of polyvinyl alcohol and 80 parts of deionized water and put them together in a three-necked flask, heat to 90° C. under stirring, and dissolve to obtain an aqueous solution of polyvinyl alcohol. Weigh 2 parts of lavender essential oil or thyme essential oil or clove essential oil, 0.1 part of non-ionic emulsifier Triton X-100, 0.1 part of viscosity-average molecular weight of 1×10 4 , degree of substitution is 95% chitosan quaternary ammonium salt, 0.1 part of prepared polyvinyl alcohol aqueous solution joins in chitosan aqueous solution jointly, carries out emulsification under the rotating speed of 5000r...

Embodiment 2

[0036] Weigh 1 part of acetic acid and dissolve it in 80 parts of deionized water to prepare an aqueous solution of acetic acid. Weigh 1 portion of viscosity-average molecular weight of 5 × 10 4 1. The chitosan whose deacetylation degree is 85% is fully dissolved in the prepared acetic acid aqueous solution under stirring to obtain the chitosan aqueous solution. Weigh 7 parts of polyvinyl alcohol and 85 parts of deionized water and place them together in a three-neck flask, heat to 95° C. under stirring, and dissolve to obtain an aqueous solution of polyvinyl alcohol. Weigh 4 parts of lemongrass essential oil or citronella essential oil or eucalyptus oil, 0.3 part of nonionic emulsifier Tween-80, 0.2 part of viscosity-average molecular weight of 5 × 10 4, degree of substitution is 90% chitosan quaternary ammonium salt, 0.5 part of prepared polyvinyl alcohol aqueous solution joins in chitosan aqueous solution jointly, carries out emulsification under the rotating speed of 1000...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
degree of substitutionaaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method of antibacterial chitosan essential oil microcapsules, the method comprising the following steps: preparation of chitosan aqueous solution; preparation of polyvinyl alcohol aqueous solution; preparation of core material emulsion; high-efficiency antibacterial chitosan essential oil Preparation of microcapsules to obtain antibacterial chitosan essential oil microcapsules. The effect of this preparation method is safe and environmentally friendly, and the raw materials used are natural products; the product microcapsules are cationic, have high-efficiency antibacterial effects, high essential oil content and good slow-release performance, and can be directly used for fabric finishing and care for related functions In the product, the bacteriostatic rate of the obtained fabric against Staphylococcus and Escherichia coli is as high as 85%.

Description

technical field [0001] The invention belongs to the technical field of textile finishing, and specifically relates to an antibacterial shell with high-efficiency antibacterial effect prepared by a single coacervation method, which uses chitosan and chitosan quaternary ammonium salt as a composite wall material, natural essential oil as a core material A preparation method of polysaccharide essential oil microcapsules. Background technique [0002] Under the background of economic conditions and science and technology in today's society, people's demand for daily necessities tends to be more and more functional and natural. The application of flavors and fragrances is not limited to providing comfortable and pleasant aromas. Some natural essential oils can bring It can be used for medical treatment and health care, or it can play the role of antibacterial, sterilizing, moisturizing, skin care and repairing, or it can have the effect of refreshing, calming the nerves and elimi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): D06M23/12D06M15/03D06M15/01B01J13/02D06M101/06
Inventor 费学宁张宝莲赵洪宾李婉晴
Owner TIANJIN CHENGJIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap