Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Food Antioxidant Cellulose Acetate Nanofiber Preservative Film

A technology of cellulose acetate and nanofibers, which is applied in the field of fresh-keeping materials, can solve the problems of solvent residues that cannot be ignored, poor mechanical properties of fibers, and difficult production, etc., and achieve the goal of overcoming mechanical shortages, uniform structure, and safe and environmentally friendly production processes Effect

Active Publication Date: 2019-03-08
TIANJIN JIESHENG DONGHUI FRESH PRESERVATION TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the solvent and polymer dissolution parameters, the solvents currently used to dissolve cellulose acetate in electrospinning are limited. The single solvents include acetone, chloroform, formic acid, and pyridine. At present, the commonly used methods in cellulose acetate electrospinning, such solvents are low-toxic or moderately toxic organic solvents, although the solvent will volatilize during the preparation, the problem of solvent residue cannot be ignored
[0006] 2. Poor mechanical properties of prepared fibers
[0007] 3. Fiber modification to improve mechanical properties is difficult to produce
The use of chemical cross-linking agents to chemically modify cellulose acetate is time-consuming and complicated, and it is urgent to develop a preparation process that is easy to operate and low in cost.

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
  • Food Antioxidant Cellulose Acetate Nanofiber Preservative Film
  • Food Antioxidant Cellulose Acetate Nanofiber Preservative Film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0034] The invention adopts a novel food-grade glacial acetic acid / water mixed solution as an electrospinning solvent system, utilizes the molecular structure of tannic acid to have both high-efficiency anti-oxidation activity of polyphenols and dual functions of self-assembly, chelation and cross-linking with metal ions, and cellulose acetate As a fiber-forming matrix, use electrospinning technology to build a chelated network structure of tannic acid and iron ions to enhance the mechanical properties of fibers, and use the porous microstructure of nanofibers to efficiently exert the antioxidant activity of tannic acid, creating a one-step method for preparing nanofiber membranes The integrated molding technology of high mechanical propertie...

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
diameteraaaaaaaaaa
tensile strengthaaaaaaaaaa
massaaaaaaaaaa
Login to View More

Abstract

The invention relates to an oxidation-resistant cellulose acetate nano fibrous preservative film for food. A preparation method comprises the following steps of the selection of cellulose acetate and the confection of a solvent, the confection of a fiber forming matrix of the cellulose acetate, the confection of a cellulose acetate based tannic acid-iron ion complexing composite electrospining precursor solution and the preparation of electrostatic spinning, the electrostatic spinning and the obtaining of a fibrous film. According to the oxidation-resistant cellulose acetate nano fibrous preservative film, the hydrophobic cellulose acetate is used as the fiber forming matrix; by utilizing that the molecular structure of a natural component tannic acid has double unique performance of oxidation resistance and the complexing with an iron metallic ion at the same time, a CA / TA-FE+++ composite nano fibrous film is prepared by a one-step method; not only is a cellulose acetate ultrafine fibrous film endowed with a functional characteristic, but also the disadvantage of mechanics of machinery is overcome; a preparation process is innovatively simplified. According to the oxidation-resistant cellulose acetate nano fibrous preservative film, the polymer material science is combined with food science; a novel oxidation-resistant preservative film is developed to make up the blank of the preparation of a nano-sized oxidation-resistant fibrous film in China.

Description

technical field [0001] The invention belongs to the field of fresh-keeping materials, and relates to a novel anti-oxidation active nanofiber packaging material, which is widely used in fat-rich food preservation films such as oily food, fresh meat, and aquatic products, especially a food anti-oxidation cellulose acetate Nanofiber wrap. Background technique [0002] The emerging antioxidant active packaging system is mainly composed of three parts: antioxidants, packaging materials and food. By adding antioxidant components to the packaging material, coating and fixing the antioxidant on the surface of the packaging material and contacting the food medium to exert an antioxidant effect, avoiding the hidden dangers of food safety caused by direct addition of food additives. Since non-degradable materials such as polystyrene, polypropylene and other plastic products are difficult to degrade in the environment after being discarded, resulting in increasingly serious white pollu...

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): D01F2/28D01F1/10D04H1/728D01D5/00D01D1/02B65D65/38
CPCB65D65/38D01D1/02D01D5/003D01D5/0069D01F1/10D01F2/28D04H1/728
Inventor 杨维巧李喜宏张博李丽梅
Owner TIANJIN JIESHENG DONGHUI FRESH PRESERVATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products