Tea polyphenol cellulose fiber and preparation method thereof

A technology of cellulose fibers and tea polyphenols, applied in the direction of rayon made of viscose, etc., can solve the problems of short shelf life, low antibacterial stability, etc., achieve excellent anti-radiation function, easy large-scale production, lightening effect of poison

Active Publication Date: 2017-03-22
YIBIN PINGSHAN HUIRUI OIL CO LTD
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of tea polyphenol cellulose fiber and its preparation method, to solve the problem of low anti-oxidation, antibacterial stability and short product shelf life in the prior art

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tea polyphenol cellulose fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of tea polyphenol cellulose fiber and preparation method thereof, comprises the following steps:

[0030] (1) Preparation of tea polyphenols pretreatment solution: pump 50L of water into the glass-lined reactor, start stirring, and add 10Kg of tea polyphenols, after fully dissolving, use dilute hydrochloric acid to adjust the pH value of the tea polyphenols aqueous solution to 4- 5. Then heat the tea polyphenol aqueous solution to 70-80°C, maintain the system temperature at 70-80°C, add 3.5L of γ-(2,3-glycidoxy)propyl dropwise to the system within 20-30min under stirring conditions After the addition of trimethoxysilane, raise the temperature of the system to 100-110°C, maintain the temperature of the system at 100-110°C for 9 hours, and then adjust the pH value of the reaction solution to 7-8 with dilute sodium hydroxide solution to obtain tea poly Phenol pretreatment solution, then down to room temperature for subsequent use;

[0031] (2) Viscose grafting trea...

Embodiment 2

[0036] A kind of tea polyphenol cellulose fiber and preparation method thereof, comprises the following steps:

[0037] (1) Preparation of tea polyphenols pretreatment solution: pump 50L of water into the glass-lined reactor, start stirring, and add 10Kg of tea polyphenols, after fully dissolving, use dilute hydrochloric acid to adjust the pH value of the tea polyphenols aqueous solution to 4- 5. Then heat the tea polyphenol aqueous solution to 70-80°C, maintain the system temperature at 70-80°C, add 3.5L of γ-glycidyl etheroxypropyl trimethoxysilane dropwise to the system within 20-30min under stirring conditions, drop After the addition, raise the system temperature to 100-110°C, maintain the system temperature at 100-110°C and react for 9 hours, then use dilute sodium hydroxide solution to adjust the pH value of the reaction solution to 7-8 to obtain the tea polyphenol pretreatment solution, and then Cool down to room temperature for later use;

[0038](2) Viscose grafting...

Embodiment 3

[0042] Effect test of pH value on tea polyphenol grafting treatment:

[0043] (1) Set up four 1L reaction bottles at the same time, install a stirring device, and mark them as A1, A2, A3, and A4 respectively, fill each of the four bottles with 300ml of water, turn on the stirring, and add 40g of tea respectively Polyphenols, after fully dissolving, A1 and A2 use dilute hydrochloric acid to adjust the pH value of the tea polyphenol aqueous solution to 3-4, A3 and A4 use dilute hydrochloric acid to adjust the pH value of the tea polyphenol aqueous solution to 4-5, and then Heat the tea polyphenol aqueous solution to 70-80°C, maintain the system temperature at 70-80°C, add 120mL of γ-(2,3-glycidyloxy)propyltrimethoxysilane dropwise to the system within 20-30min under stirring conditions, After the dropwise addition, raise the system temperature to 100-110°C, maintain the system temperature at 100-110°C for 9 hours, and then use dilute sodium hydroxide solution to adjust the pH va...

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
lengthaaaaaaaaaa
antibacterial rateaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to view more

Abstract

The invention discloses tea polyphenol cellulose fiber which is composed of, by weight, 5-10% of tea polyphenol and 90-95% of cellulose, wherein the tea polyphenol is grafted on the cellulose through a coupling agent. A preparation method of the tea polyphenol cellulose fiber includes following steps: (1), preparing tea polyphenol pretreatment liquid: preparing a tea polyphenol water solution of 10-20% in mass fraction, adjusting pH value of the tea polyphenol water solution to 4-5, heating the tea polyphenol water solution to 70-80 DEG C, dropwise adding a silane coupling agent, increasing temperature of a system to 100-130 DEG C after dropwise adding is finished, maintaining reaction for 8-10h, adjusting pH value of reaction liquid to 7-8 to obtain the tea polyphenol pretreatment liquid, and cooling to room temperature for standby use; (2), performing viscose grafting treatment: adding the tea polyphenol pretreatment liquid into viscose, sufficiently mixing, entering a ripening intermediate bucket constantly maintained in a stirring state, and maintaining reaction for 30-36h to obtain tea polyphenol pre-grafting viscose; (3), directing spinning, washing and drying the tea polyphenol pre-grafting viscose obtained in the step (2) to obtain the tea polyphenol cellulose fiber.

Description

technical field [0001] The invention relates to the field of functional fiber preparation, in particular to a tea polyphenol cellulose fiber and a preparation method thereof. Background technique [0002] Mask is the most important tool for skin care. Nowadays, with the awareness of maintenance and skin care becoming popular, the mask market is becoming more and more popular. Traditional non-woven masks occupy the vast majority of the market. Most of the masks are as follows: Its added nutrients are used to achieve moisturizing, whitening and anti-aging effects, but there is little research on the mask substrate as a mask carrier. [0003] Tea polyphenols are a class of polyhydroxy compounds contained in tea leaves. They are pure natural antioxidants. They have the characteristics of strong antioxidant capacity, no toxic side effects, and no peculiar smell. The fiber is a component of non-woven fabrics for facial masks. A functional fiber material and a composition thereof ...

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 Applications(China)
IPC IPC(8): D01F2/08
CPCD01F2/08
Inventor 孙益华刘志军
Owner YIBIN PINGSHAN HUIRUI OIL CO LTD
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