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Self-adhesive gauze and preparation method thereof

A self-adhesive and gauze technology, applied in the field of self-adhesive gauze and self-adhesive gauze preparation, can solve the problems of allergic reaction, block the ventilation holes of gauze, affect the effect of dispersing moisture, etc., to enhance antibacterial performance and improve bonding performance. , the effect of benefiting the patient's recovery

Inactive Publication Date: 2020-08-18
XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of being used as a medical dressing, gauze is usually used to cover the wound, and then the edge is fixed by medical adhesive tape. If the adhesive tape is directly bonded to the skin for too long, some people will have allergic reactions
[0003] The invention patent document with the patent application number 201711003686.X discloses a kind of antibacterial gauze. The connecting plate and buckle are respectively detachable on both sides of the gauze. It is formed into a circle, and then the gauze is covered on the surface of the wound. Although it solves the problem that the gauze is easily sensitized by contact with the skin, the gauze is easy to fall off due to friction on the wound, and it cannot achieve the antibacterial effect of gauze dressing.
[0004] The utility model document with the patent application number 201820733618.2 discloses a medical adhesive plaster, which distributes the adhesive array on the interlining layer to form a divided bonding area, which is easy to tear, and solves the problem that the medical adhesive plaster is highly viscous and easy to pull the skin , although the bonding comfort of the medical adhesive tape has been improved, the problem of sensitization of the medical adhesive tape in contact with the skin has not yet been solved

Method used

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  • Self-adhesive gauze and preparation method thereof
  • Self-adhesive gauze and preparation method thereof
  • Self-adhesive gauze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] The effect of the preparation raw material that adopts in the present invention is as shown in table 1

[0056]

[0057]

[0058] A preparation method of self-adhesive gauze, comprising:

[0059] Step 1, take the following raw materials according to the mass fraction:

[0060] 43-49 parts of xylylene diisocyanate, 44-53 parts of polyvinylpyrrolidone, 10-25 parts of monoglyceride laurate, 51-57 parts of polyethersulfone ether ketone, 7-8 parts of nano-silica, 30-35 parts of dandelion extract, 0.2-0.8 parts of Fangfeng, 0.8-1.2 parts of Toona Cortex, 2-3 parts of Nepeta, 3-5 parts of Citrus aurantii;

[0061] Step 2, adding the raw material into the stirring device, and 1 Stir to prepare the mixture A, and let it stand for 3 to 5 minutes, the rotation speed is n 1 The calculation formula is:

[0062]

[0063] Among them, n 0 is the normal speed, δ h is the volume of the stirring device, δ 0 is the volume of raw material put into the stirring device.

[00...

experiment example 1

[0072] Step 1, take the following raw materials according to the mass fraction:

[0073] 43 parts of xylylene diisocyanate, 44 parts of polyvinylpyrrolidone, 10-parts of monoglyceride laurate, 51 parts of polyethersulfone ether ketone, 7 parts of nano-silica, 30 parts of dandelion extract, 0. -0.8 parts, 0.8 parts of Toon white bark, 2 parts of Schizonepeta, 3 parts of Citrus aurantium;

[0074] Step 2. Add the raw materials into the stirring device, and 1 Stir to prepare mixture A, and let it stand for 3 to 5 minutes,

[0075] in,

[0076] Step 3: Add 5 parts of chain extender and 1 part of crosslinking agent to mixture A, and 2 Stir to obtain mixture B, speed n 2 The calculation formula is:

[0077]

[0078] Step 4: Pour the mixture B into a vibrator for vibration defoaming. The vibration frequency curve of the vibrator is:

[0079]

[0080] Among them, P 0 is the average vibration frequency of 15 times / min, and t is the vibration time, which is 2 hours.

[0...

experiment example 2

[0083] Step 1, take the following raw materials according to the mass fraction:

[0084] 49 parts of xylylene diisocyanate, 53 parts of polyvinylpyrrolidone, 25 parts of monoglyceride laurate, 57 parts of polyethersulfone ether ketone, 8 parts of nano silicon dioxide, 35 parts of dandelion extract, 0.8 part of windproof, 1.2 parts of Toon white bark, 3 parts of Nepeta, and 5 parts of Citrus aurantium.

[0085] Step 2. Add the raw materials into the stirring device, and 1 Stir to prepare mixture A, and let it stand for 3 to 5 minutes,

[0086] in,

[0087] Step 3: Add 12 parts of chain extender and 3 parts of crosslinking agent to mixture A, and 2 Stir to obtain mixture B, speed n 2 The calculation formula is:

[0088]

[0089] Step 4: Pour the mixture B into a vibrator for vibration defoaming. The vibration frequency curve of the vibrator is:

[0090]

[0091] Among them, P 0 is the average vibration frequency of 15 times / min, and t is the vibration time, which ...

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Abstract

The invention provides self-adhesive gauze. The self-adhesive gauze comprises a gauze body, the self-adhesive ring is sewed at the edge of the gauze body and comprises a lining cloth layer, a bottom layer and a bottom layer, the lining cloth layer is made of elastic fibers, and a plurality of circular holes distributed in arrays are formed in the surface; viscous adhesive cement, the coating layeris coated on one side of the lining cloth layer; wherein the viscous adhesive cement comprises the following components in parts by weight: 20-40 parts of an adhesive and 10-20 parts of a curing agent; 43 to 49 parts of xylylene diisocyanate; 44-53 parts of polyvinylpyrrolidone, 10-25 parts of glycerol monolaurate, 51-57 parts of polyether sulfone ether ketone, 7-8 parts of nano silicon dioxide,30-35 parts of dandelion extract, 0.2-0.8 part of divaricate saposhnikovia root, 0.8-1.2 parts of ailanthus altissima bark, 2-3 parts of schizonepeta, 3-5 parts of immature bitter orange, 5-12 parts of chain extender and 1-3 parts of cross-linking agent. According to the self-adhesive gauze, the self-adhesive ring is arranged on the edge of the gauze body, the dandelion extract, the glycerol monolaurate, the fructus aurantii immaturus and other traditional Chinese medicine components are added into a binder of the self-adhesive ring, the self-adhesive gauze has the effects of promoting blood circulation to remove blood stasis and resisting allergy, the components are natural, and the sensitization of adhesive cement is greatly reduced.

Description

technical field [0001] The invention relates to the field of medical consumables, in particular to a self-adhesive gauze and a preparation method for the self-adhesive gauze. Background technique [0002] Traditional gauze is woven with medium and coarse special cotton yarn plain weave, with a sparse structure, and has good moisture absorption and moisture dissipation properties after scouring and degreasing. The product has been strictly sterilized by high temperature and high pressure, and is suitable as a base material for medical dressings and dressings. In the process of being used as a medical dressing, gauze is usually used to cover the wound, and then the edge is fixed by medical adhesive tape. If the adhesive tape is directly bonded to the skin for too long, some people will have allergic reactions. [0003] The invention patent document with the patent application number 201711003686.X discloses a kind of antibacterial gauze. The connecting plate and buckle are r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/00A61F13/02A61L15/40A61L15/44A61L15/46
CPCA61F13/00063A61F13/0253A61F13/0289A61L15/40A61L15/44A61L15/46A61L2300/104A61L2300/30A61L2300/404A61L2300/45
Inventor 孙慧
Owner XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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