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

High-tension medical non-woven fabric

A non-woven, high-strength technology, used in medical science, non-woven fabrics, textiles and papermaking, etc., can solve problems such as unfavorable mass production, easy dissolution of antibacterial agents, and unsustainable antibacterial properties, and achieve good mechanical properties and Self-cleaning properties, excellent antibacterial properties and mechanical properties, effect of long-lasting antibacterial properties

Active Publication Date: 2021-11-26
江阴市宏勇医疗科技发展有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Medical non-woven fabrics are mainly made of polyester, polyamide, polytetrafluoroethylene, PP brand new materials, carbon fiber and glass fiber. The non-woven products made include disposable masks, protective clothing, surgical gowns, isolation gowns, medical Coating materials, but the existing medical non-woven fabrics often have the problems of poor toughness and unsustainable antibacterial properties
[0003] Chinese patent CN112111851A discloses an antibacterial medical non-woven fabric and its preparation process, belonging to the technical field of non-woven fabrics, including: 90-110 parts of PP new material fiber, 80-100 parts of polyester fiber, organic Mongolia 1-3 parts of soil removal, 20-25 parts of activated carbon fiber, 1-3 parts of crystal wax, 4-10 parts of antibacterial agent, 1-3 parts of antistatic agent and 0.5-2 parts of antioxidant. Adding ethoxylated aliphatic alkylamine as an antibacterial agent can effectively sterilize bacteria, and ethoxylated aliphatic alkylamine can effectively strengthen the bactericidal ability through high-temperature reaction with crystalline wax and organic montmorillonite, but the antibacterial in this invention The agent is easy to dissolve and separate from the non-woven fabric, so that the non-woven fabric loses its antibacterial properties, and the preparation process of the non-woven fabric is complicated. After the fibers need to be loosened, melted and extruded, soaked in the antibacterial liquid and then needled for reinforcement, this reinforcement The production cost of the method is relatively high, and it does not take advantage of mass production

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
  • High-tension medical non-woven fabric
  • High-tension medical non-woven fabric
  • High-tension medical non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment prepares a kind of modified carbon fiber, the steps are as follows:

[0050] Step 1. Add 1.28g of 5,5-dimethylhydantoin and 100mL of acetone into a three-necked flask, then add 4.12g of potassium carbonate to reflux for 30min, add 8.12g of 1,4-dibromobutane, and continue to reflux for 4h. After the reaction, filter while hot to remove the inorganic salts, collect the filtrate, and distill the solvent under reduced pressure. Phase, distillation under reduced pressure, obtains intermediate 1;

[0051] Step 2. Add 1mmol of 3,5-pyridinedimethanol and 80mL of ethanol solution with a mass fraction of 40% into a three-necked flask, stir and heat up to 40°C, add 10mL of ethanol solution of intermediate 1, heat up to 45°C, and keep the temperature for 7h. After the reaction, ethanol was distilled off under reduced pressure, washed with deionized water and filtered, and the filtrate was evaporated to dryness under reduced pressure to obtain intermediate 2. The et...

Embodiment 2

[0059] This embodiment prepares a kind of modified carbon fiber, the steps are as follows:

[0060] Step 1. Add 1.28g of 5,5-dimethylhydantoin and 100mL of acetone into a three-necked flask, then add 4.82g of potassium carbonate to reflux for 30min, add 8.23g of 1,4-dibromobutane, and continue to reflux for 4.5h , after the reaction, filter while hot to remove inorganic salts, collect the filtrate, distill under reduced pressure to remove the solvent, and the distillation product is separated and purified by chromatographic column, using a mixture of ethyl acetate and petroleum ether with a volume ratio of 2:5 as the eluent, collect The organic phase was distilled under reduced pressure to obtain intermediate 1;

[0061] Step 2. Add 1mmol of 3,5-pyridinedimethanol and 90mL of ethanol solution with a mass fraction of 40% into a three-necked flask, stir and heat up to 40°C, add 10mL of ethanol solution of intermediate 1, heat up to 45°C, and keep the temperature for 7.5h After ...

Embodiment 3

[0069] This embodiment prepares a kind of modified carbon fiber, the steps are as follows:

[0070] Step 1. Add 1.28g of 5,5-dimethylhydantoin and 100mL of acetone into a three-necked flask, then add 5.35g of potassium carbonate to reflux for 30min, add 8.78g of 1,4-dibromobutane, and continue to reflux for 5h. After the reaction, filter while hot to remove the inorganic salts, collect the filtrate, and distill the solvent under reduced pressure. Phase, distillation under reduced pressure, obtains intermediate 1;

[0071] Step 2. Add 1 mmol of 3,5-pyridinedimethanol and 100 mL of ethanol solution with a mass fraction of 40% into a three-necked flask, stir and heat up to 40°C, add 10mL of ethanol solution of intermediate 1, heat up to 45°C, and keep the temperature for 8h. After the reaction, ethanol was distilled off under reduced pressure, washed with deionized water and filtered, and the filtrate was evaporated to dryness under reduced pressure to obtain intermediate 2. The...

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
stretching forceaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-tension medical non-woven fabric, and belongs to the technical field of medical non-woven fabric preparation. The high-tension medical non-woven fabric is prepared from the following raw materials in parts by weight of 80-100 parts of a PP brand new material, 10-15 parts of photocatalytic fibers, 30-50 parts of aramid fibers, 28-30 parts of modified carbon fibers, 1-5 parts of a toughening agent, 2-4 parts of a compatilizer, 1-3 parts of an antioxidant, and 1-2 parts of a lubricant, wherein the modified carbon fibers are obtained by carrying out an amidation reaction on acidified carbon fibers and a modifier under the action of 4-dimethylaminopyridine and N,N'-dicyclohexylcarbodiimide, and after the modified carbon fibers are added into a non-woven fabric material, the tensile property, the bactericidal action, the hydrophobicity and the solvent resistance of the non-woven fabric can be effectively improved. The problem that an antibacterial agent is easy to dissolve out in the prior art is solved, so that the non-woven fabric prepared by the method has very high utilization value in the medical field.

Description

technical field [0001] The invention belongs to the technical field of medical non-woven fabric preparation, and in particular relates to a strong tensile medical non-woven fabric. Background technique [0002] Medical non-woven fabrics are mainly made of polyester, polyamide, polytetrafluoroethylene, PP brand new materials, carbon fiber and glass fiber. The non-woven products made include disposable masks, protective clothing, surgical gowns, isolation gowns, medical Coating materials, but the existing medical non-woven fabrics often have the problems of poor toughness and unsustainable antibacterial properties. [0003] Chinese patent CN112111851A discloses an antibacterial medical non-woven fabric and its preparation process, belonging to the technical field of non-woven fabrics, including: 90-110 parts of PP new material fiber, 80-100 parts of polyester fiber, organic Mongolia 1-3 parts of soil removal, 20-25 parts of activated carbon fiber, 1-3 parts of crystal wax, 4-...

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): D04H1/541D04H1/544D01F8/06D01F8/12D01F1/10
CPCD04H1/5418D04H1/544D01F8/06D01F8/12D01F1/10D01F1/103D10B2401/13D10B2509/00D10B2509/022D10B2501/04
Inventor 承逸
Owner 江阴市宏勇医疗科技发展有限公司
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