Anti-sticking dressing and manufacturing method thereof

Abstract

The invention discloses an anti-sticking dressing and a manufacturing method thereof. The anti-sticking dressing includes a water-based foaming layer and a polyurethane membrane formed thereon, and the bottom of the water-based foaming layer is used for attaching to a wound of skin. A main agent is formed by mixing hardener hexamethylene diisocyanate, polyethylene glycol, polypropylene glycol, 2,2-Bis(hydroxymethyl)propionic acid, ethylenediamine and 1,4-butanediol, when 1,4-butanediol is added, a functional additive is added to form a prepolymer; and the prepolymer is processed into a mechanical foaming body by utilizing a mechanical foaming machine, and centrifugal paper is coated with the foaming body to form the water-based foaming layer.

Description

technical field

[0001] The invention relates to an anti-adhesion dressing, in particular to an anti-adhesion dressing prepared by a mechanical foaming machine and a manufacturing method thereof. Background technique

[0002] As we all know, in the traditional high-absorbent foam dressing and its manufacturing method, the traditional technology does not use water-based polyurethane, nor does it add functional additives. In addition, in terms of adding methods, the traditional technology uses physical mixing. These have resulted in poor moisturizing effect and no antibacterial function of traditional high-absorption foam dressings, so it is urgent to improve them. In addition, conventional technology uses non-woven fabrics and does not apply dot glue on the polyurethane film. Contents of the invention

[0003] The present invention aims to solve the above-mentioned problems of poor moisturizing effect, no antibacterial function, and difficult absorption of wound tissue flui...

Examples

Embodiment A

[0047] Prepare the water-based foam layer, by 2.0mol% hardener hexamethylene diisocyanate and 0.2mol% polyethylene glycol PEG2000 (polyethylene glycol, PEG, M n2000) and 0.8mol% polypropylene glycol PPG2000 (polypropylene glycol, PPG, M n 2000) mixed with 0.4mol% 2,2-dimethylol propionic acid and 0.1mol% ethylenediamine (ethylenediamine) and 0.3mol% 1,4-butanediol to form the main agent, and without adding functional additives, the preparation into a prepolymer; then use a mechanical foaming machine to make a mechanical foam, and coat it on centrifugal paper to form a water-based foam layer; a polyurethane film is formed on the water-based foam layer, and the bottom of the water-based foam layer is used for Attached to wounds of the skin; several dots of glue are coated on the polyurethane membrane.

Embodiment B

[0049] Prepare the water-based foam layer, by 2.0mol% hardener hexamethylene diisocyanate and 0.3mol% polyethylene glycol PEG2000 (polyethylene glycol, PEG, M n 2000) and 0.7mol% polypropylene glycol PPG2000 (polypropylene glycol, PPG, M n 2000) with 0.4mol% of 2,2-dimethylol propionic acid and 0.1mol% of ethylenediamine and 0.3mol% of 1,4-butanediol to form the main agent, and without adding functional additives, made Prepolymer; then use mechanical foaming machine to make mechanical foam, and spread it on centrifugal paper to make water-based foam layer; polyurethane film is formed on the water-based foam layer, and the bottom of water-based foam layer is used for pasting Attaches to wounds in the skin; the polyurethane membrane is coated with dots of glue.

Embodiment C

[0051] Prepare the water-based foam layer, first by 2.0mol% hardener hexamethylene diisocyanate and 0.4mol% polyethylene glycol PEG2000 and 0.6mol% polypropylene glycol PPG2000 and 0.4mol% 2,2-dimethylol propane The acid is mixed with 0.1mol% ethylenediamine and 0.3mol% 1,4-butanediol to form the main agent, and no functional additives are added to make a prepolymer; then mechanical foaming machine is used to make mechanical foam Foam body, coated on centrifugal paper to form a water-based foam layer; a polyurethane film is formed on the water-based foam layer, and the bottom of the water-based foam layer is used to attach to the wound of the skin; the polyurethane film is coated with a number of dots glue.

technical field

[0001] The invention relates to an anti-adhesion dressing, in particular to an anti-adhesion dressing prepared by a mechanical foaming machine and a manufacturing method thereof. Background technique

[0002] As we all know, in the traditional high-absorbent foam dressing and its manufacturing method, the traditional technology does not use water-based polyurethane, nor does it add functional additives. In addition, in terms of adding methods, the traditional technology uses physical mixing. These have resulted in poor moisturizing effect and no antibacterial function of traditional high-absorption foam dressings, so it is urgent to improve them. In addition, conventional technology uses non-woven fabrics and does not apply dot glue on the polyurethane film. Contents of the invention

[0003] The present invention aims to solve the above-mentioned problems of poor moisturizing effect, no antibacterial function, and difficult absorption of wound tissue flui...

Examples

Embodiment A

[0047] Prepare the water-based foam layer, by 2.0mol% hardener hexamethylene diisocyanate and 0.2mol% polyethylene glycol PEG2000 (polyethylene glycol, PEG, M n2000) and 0.8mol% polypropylene glycol PPG2000 (polypropylene glycol, PPG, M n 2000) mixed with 0.4mol% 2,2-dimethylol propionic acid and 0.1mol% ethylenediamine (ethylenediamine) and 0.3mol% 1,4-butanediol to form the main agent, and without adding functional additives, the preparation into a prepolymer; then use a mechanical foaming machine to make a mechanical foam, and coat it on centrifugal paper to form a water-based foam layer; a polyurethane film is formed on the water-based foam layer, and the bottom of the water-based foam layer is used for Attached to wounds of the skin; several dots of glue are coated on the polyurethane membrane.

Embodiment B

[0049] Prepare the water-based foam layer, by 2.0mol% hardener hexamethylene diisocyanate and 0.3mol% polyethylene glycol PEG2000 (polyethylene glycol, PEG, M n 2000) and 0.7mol% polypropylene glycol PPG2000 (polypropylene glycol, PPG, M n 2000) with 0.4mol% of 2,2-dimethylol propionic acid and 0.1mol% of ethylenediamine and 0.3mol% of 1,4-butanediol to form the main agent, and without adding functional additives, made Prepolymer; then use mechanical foaming machine to make mechanical foam, and spread it on centrifugal paper to make water-based foam layer; polyurethane film is formed on the water-based foam layer, and the bottom of water-based foam layer is used for pasting Attaches to wounds in the skin; the polyurethane membrane is coated with dots of glue.

Embodiment C

[0051] Prepare the water-based foam layer, first by 2.0mol% hardener hexamethylene diisocyanate and 0.4mol% polyethylene glycol PEG2000 and 0.6mol% polypropylene glycol PPG2000 and 0.4mol% 2,2-dimethylol propane The acid is mixed with 0.1mol% ethylenediamine and 0.3mol% 1,4-butanediol to form the main agent, and no functional additives are added to make a prepolymer; then mechanical foaming machine is used to make mechanical foam Foam body, coated on centrifugal paper to form a water-based foam layer; a polyurethane film is formed on the water-based foam layer, and the bottom of the water-based foam layer is used to attach to the wound of the skin; the polyurethane film is coated with a number of dots glue.

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