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

Waterproof and antibacterial packaging film and preparation process thereof

A preparation process and technology of packaging film, which is applied in the field of waterproof and anti-bacteria packaging film and its preparation process, can solve the problems of high production cost of packaging film, large equipment investment, complex production process, etc., and achieve good waterproof and oxygen barrier, low equipment investment The effect of small size and simple process

Inactive Publication Date: 2020-05-12
黄金平
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the packaging film is usually processed by multi-layer co-extrusion method, which requires large equipment investment and complicated production process, resulting in high production cost of the packaging film.

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
  • Waterproof and antibacterial packaging film and preparation process thereof
  • Waterproof and antibacterial packaging film and preparation process thereof
  • Waterproof and antibacterial packaging film and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A waterproof and antibacterial packaging film, comprising the following components in parts by weight:

[0042] 100-110 parts of low-density polyethylene, 60-80 parts of polylactic acid, 30-40 parts of modified bamboo fiber, 0.2-0.4 parts of calcium carbonate, 0.2-0.4 parts of oleic acid, 0.4-1 part of alginate, 0.2 parts of antibacterial agent -0.6 parts, 0.5-2.5 parts of waterproofing agent.

[0043] The raw material of modified bamboo fiber comprises bamboo fiber, acetic anhydride, propionic acid, acetic acid, and the preparation method of modified bamboo fiber is: put bamboo fiber in toluene, ultrasonic treatment, add propionic acid, acetic acid, acetic anhydride successively, stir, Then it is poured into ethanol solution to generate precipitation, centrifuged, washed with distilled water, and vacuum freeze-dried to obtain the modified bamboo fiber.

[0044] The alginate is mixed with calcium alginate, potassium alginate and sodium alginate, wherein the mass ratio ...

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
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention discloses a waterproof and antibacterial packaging film and a preparation process thereof, and belongs to the technical field of packaging materials. The waterproof and antibacterial packaging film comprises low density polyethylene, polylactic acid, modified bamboo fibers, calcium carbonate, oleic acid, alginate, an antibacterial agent and other components. The preparation process comprises the steps of material preparation, material mixing, extrusion granulation, film casting and the like. The waterproof and antibacterial packaging film adopts The low density polyethylene, thepolylactic acid and the modified bamboo fibers as main raw materials, so that the waterproof and antibacterial packaging film has good waterproof and oxygen-isolating functions, is biodegradable, hasno pollution to the environment, has continuous antibacterial ability, inhibits or prevents microbial growth, has very good barrier property on moisture and oxygen, and is suitable for packaging foodsand medicines. The preparation process is simple in flow, the film is formed by an extrusion casting method, a multilayer co-extrusion method is not needed for processing, the equipment investment issmall, and the preparation process is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of packaging materials, in particular to a waterproof and antibacterial antibacterial packaging film and a preparation process thereof. Background technique [0002] The safety and sanitation of food and medicine are directly related to people's life and health, so selecting suitable packaging materials is one of the important links to ensure the quality of food and medicine. The barrier performance of packaging materials is a key factor affecting the packaging effect. Usually, the main reasons for the deterioration of packaging contents are the attack of moisture and oxygen, the exposure of visible light and the contamination of microorganisms. Moisture causes microorganisms to multiply, oxygen causes the content to oxidize and deteriorate, and some foods and medicines will decompose and become invalid when exposed to light. Good barrier properties of packaging materials can ensure that the contents mainta...

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): C08L23/08C08L67/04C08L97/02C08L5/04C08L89/00C08K13/06C08K3/26C08K5/09C08K3/32C08K7/26C08K3/22C08K3/34C08H8/00C08J5/18B29B7/14B29B7/16B29B7/22B29B7/82
CPCB29B7/14B29B7/16B29B7/22B29B7/826B29K2023/0633B29K2067/046C08H8/00C08J5/18C08J2323/08C08J2400/16C08J2405/04C08J2467/04C08J2489/00C08J2497/02C08K3/34C08K5/09C08K7/26C08K13/06C08K2003/2241C08K2003/2248C08K2003/2286C08K2003/265C08K2003/328C08K2201/014
Inventor 不公告发明人
Owner 黄金平
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com