Antimicrobial fabric for medical partition curtain

A technology of antibacterial fabrics and curtains, applied in the field of medical fabrics, can solve the problems of low surface load rate, discounted antibacterial effect, poor adhesion between carrier and antibacterial nanomaterials, etc., to achieve the effect of inhibiting the reproduction of bacteria and excellent waterproof

Active Publication Date: 2014-12-24
WILKIE TECHN TEXTILES JIAXING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Antibacterial finishing agents include organic antibacterial agents and inorganic antibacterial agents. For example, commonly used nano-scale antibacterial fabrics have been widely used in recent years. Agglomeration will occur, resulting in mutual coverage and uneven distribution of na

Method used

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  • Antimicrobial fabric for medical partition curtain
  • Antimicrobial fabric for medical partition curtain
  • Antimicrobial fabric for medical partition curtain

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1 Preparation of modifier

[0017] The modifier used in the present invention is a compound having the following general structure:

[0018]

[0019] In the above general structure, A is the residue after the reaction of 4-hydroxyethyl imidazole and isocyanate group; R is the part of diphenylmethane-4,4,-diisocyanate excluding the isocyanate group. Wherein, m and n are integers, and 5≤m≤10 and 3≤n≤5. The modifier consists of diphenylmethane-4,4,-diisocyanate and polyether polyols with different degrees of polymerization in toluene, acetone and other organic solvents in a certain proportion to form polyurethane with isocyanate groups at both ends of the molecular chain. It is prepared by adding 4-hydroxyethyl imidazole to end-capping it. In the reaction process, in order to increase the reaction speed, the catalyst dibutyl tin dilaurate can be used to control the polymerization degree of the polyether polyol used to control the general formula The value of m in the ...

Example Embodiment

[0020] Example 2 Antibacterial Additive A

[0021] The antibacterial additive described in this embodiment is prepared by the following method:

[0022] (1) Add calcium carbonate particles with an average particle diameter of 10μm into water to form a suspension with a concentration of 10wt%, and then add nanometer titanium dioxide particles and 1-vinylimidazole, control the temperature of the system to 20-30°C, and Stir the reaction for 30 minutes at a stirring speed of 2000 rpm; wherein the average particle size of the nano-titanium dioxide is 20 nm, the mass of the nano-titanium dioxide is 10 wt% of the mass of calcium carbonate, and the mass of 1-vinylimidazole is 3.0 wt% of the mass of calcium carbonate;

[0023] (2) Add silver nitrate, citric acid, glucose and N-vinyl caprolactam, react for 20 minutes at a stirring speed of 2000 rpm; then age for 12 hours, filter, dry and disperse to obtain nano-coated calcium carbonate particles ; Wherein, the amount of silver nitrate added i...

Example Embodiment

[0035] Example 3 Preparation of polyurethane functional coating agent A

[0036] Under the protection of dry nitrogen, the vacuum dehydrated polyoxypropylene diamine D-2000, bisphenol A polyoxyethylene ether BPE-06, carbodiimide modified 4, 4, -MDI, N-methyl diamine Ethanolamine, 1,4-butanediol, antibacterial additive A, diethylaminoethyl methacrylate, tetraisobutyl titanate, ultraviolet absorber, antioxidant, 8-hydroxyquinolinone and a suitable amount of solvent ( Toluene and ethyl acetate) and other raw materials are added to the reactor at one time, react at 75~80℃ for 2.0 hours, reduce the system temperature to 20~30℃, add deionized water, sodium carboxymethyl cellulose, polyethylene Pyrrolidone and fatty alcohol polyoxyethylene ether are dispersed for 15-20 minutes under stirring conditions of 3000 revolutions per minute, and then the solvent and low boiling substances are removed under reduced pressure to obtain the polyurethane functional coating agent. In this embodiment...

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Abstract

The invention relates to an antimicrobial fabric for a medical partition curtain, belonging to the technical field of medical fabrics. The antimicrobial fabric comprises a piece of fabric base cloth and a polyurethane functional layer, wherein a polyurethane functional coating agent is applied to the fabric base cloth and then is cured to form the polyurethane functional layer. The polyurethane functional layer of the antimicrobial fabric has a stable and lasting antimicrobial function, and is capable of killing bacteria and inhibiting bacterial reproduction in a contact manner so as to further achieve the aim and effect of resisting bacteria in a long time; in addition, the antimicrobial fabric can be endowed with excellent waterproofness and moisture penetrability by virtue of the polyurethane functional layer.

Description

technical field [0001] The invention relates to the technical field of medical fabrics, more specifically, the invention relates to an antibacterial fabric used for medical curtains. Background technique [0002] Antimicrobial Fabric (AntimicrobialFabric), used to resist the regeneration and reproduction of Staphylococcus aureus and Escherichia coli. Antibacterial fabrics are mainly divided into the following two categories according to the preparation process: the first is the built-in silver ion antibacterial fabric, which uses spinning-grade antibacterial technology to directly put the antibacterial agent into the chemical fiber; the second is the antibacterial finishing technology through The subsequent shaping process of the fabric is added. The finishing process is relatively simple and the cost is low, and it is also the most widely used one in the market. Antibacterial finishing is to make the fabric have antibacterial and bactericidal functions through the treatme...

Claims

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Application Information

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IPC IPC(8): D06M15/568D06M15/09D06M15/356D06M15/53D06M11/46D06M11/83D06M101/32
Inventor 何建良贺新
Owner WILKIE TECHN TEXTILES JIAXING
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