CN109276739A - Absorbent dressing and its manufacturing method - Google Patents
Absorbent dressing and its manufacturing method Download PDFInfo
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- CN109276739A CN109276739A CN201710594047.9A CN201710594047A CN109276739A CN 109276739 A CN109276739 A CN 109276739A CN 201710594047 A CN201710594047 A CN 201710594047A CN 109276739 A CN109276739 A CN 109276739A
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- Prior art keywords
- foam
- prepolymer
- hexamethylene diisocyanate
- composition
- absorbent dressing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
Abstract
The invention discloses a kind of absorbent dressing and its manufacturing methods.It include foam dressing layer in absorbent dressing, bottom is attached to the wound of skin；And the polyurethane film on foam dressing layer is set.The manufacturing method of absorbent dressing include 0.5~0.3mol% of mixing polyethylene glycol and 0.5~0.7mol% polypropylene glycol to form host agent, 2.0~2.2mol% curing agent is added to host agent so that prepolymer is made, the end of prepolymer has hexamethylene diisocyanate, and addition functional additive and composition, foam react to prepolymer and generate foam dressing layer, and form polyurethane film on foam dressing layer.
Description
Technical field
The present invention relates to absorbent dressing technologies, in particular to a kind of with very good moisturizing and soaking effect
Absorbent dressing and its manufacturing method.
Background technique
It is well known that traditional technology is simultaneously not added with functionality in the technology of conventional absorbent dressing and its manufacturing method
Additive.It is traditionally physical admixture for addition manner, conventional absorbent dressing moistening effect is poor, does not have anti-
Bacterium function, therefore urgently improved.
Summary of the invention
In view of this, it is a primary object of the present invention to improve conventional absorbent dressing moistening effect difference and do not have antibacterial
The problem of function.
In order to realize above-mentioned purpose and solve the problems, such as, the main purpose of the present invention is to provide a kind of absorbent dressing,
It is characterized in that, comprising: foam dressing layer, bottom are attached to the wound of skin；And polyurethane film, it is arranged in foam dressing layer
On；Wherein: foam auxiliary material layer is added by functional additive and composition, foam and is formed into prepolymer, the end tool of prepolymer
There is hexamethylene diisocyanate, is added by the curing agent hexamethylene diisocyanate of 2.0~2.2mol% to host agent and is reacted
It obtains, host agent is made of the polyethylene glycol of 0.5~0.3mol% and the polypropylene glycol of 0.5~0.7mol%.
According to the present invention, in foam auxiliary material layer, when prepolymer is 1.0mol%, preferably composition, foam contains
The polyethylene glycol 400 of 0.1~0.3mol%, the water of 0.4~0.6mol%, 0.1mol% sodium bicarbonate, 0.2~0.4mol%
Macrogol 600 and 0.01mol% tertiary amine.
In accordance with the present invention it is preferred that the water in the hexamethylene diisocyanate and composition, foam of prepolymer generates two
Carbon oxide gas, and then act on and foam with sodium bicarbonate.
In accordance with the present invention it is preferred that functional additive is any one to multiple in sodium hyaluronate, collagen and chitin
Kind.
In accordance with the present invention it is preferred that the thickness of polyurethane film is between 0.01~0.04mm, and polyurethane film aqueous vapor is worn
Saturating rate is greater than daily 3000 gram/square centimeter.
In accordance with the present invention it is preferred that the thickness of polyurethane film is 0.025mm.
The present invention also provides a kind of preparation methods of above-mentioned absorbability auxiliary material, it is characterised in that: wherein, through mixing
The polyethylene glycol of 0.5~0.3mol% and the polypropylene glycol of 0.5~0.7mol% form host agent；It is added 2.0~2.2mol%'s
Prepolymer is made to host agent for curing agent, and wherein the end of prepolymer has hexamethylene diisocyanate；Functionality is added to add
Agent and composition, foam is added to generate foam dressing layer to prepolymer to react；And polyurethane film is formed, polyurethane film setting exists
On foam dressing layer.
According to the present invention, in foam auxiliary material layer, the mol when prepolymer is 1.0mol%, preferably composition, foam contains
Have the polyethylene glycol 400 of 0.1~0.3mol%, the water of 0.4~0.6mol%, the sodium bicarbonate of 0.1mol%, 0.2~
The Macrogol 600 of 0.4mol% and the tertiary amine of 0.01mol%.
In accordance with the present invention it is preferred that the water in the hexamethylene diisocyanate and composition, foam of prepolymer generates two
Carbon oxide gas, and then act on and foam with sodium bicarbonate.
In accordance with the present invention it is preferred that functional additive is any one to multiple in sodium hyaluronate, collagen and chitin
Kind.
The action and effect of invention
The difference of the present invention and traditional technology are: the present invention is added into functional additive, functional additive more
It is any in sodium hyaluronate (hyaluronicacid), collagen (collagen) and chitin (chitin/chitosan)
One to multiple kind, traditional technology is simultaneously not added with functional additive.In addition, being traditionally physical mixed side for addition manner
Formula, addition manner of the invention are to use chemical crosslinking effect, and the molecular weight Mn of foaming body is between 100,000 to 1,000,000.
The advantages of absorbent dressing of the invention is that have very good moisturizing and soaking effect, and soaking effect is to come from
PEG400 and PEG600 in the PEG and composition, foam of host agent.Sodium hyaluronate and collagen are that have moisturizing to wound
Function, and chitin is that have the function of antibacterial, and the purpose according to absorbent dressing institute expected design to wound, sodium hyaluronate,
Both one or any choosing can be arbitrarily selected in collagen and chitin or arbitrarily select three.
Detailed description of the invention
Fig. 1 is the schematic diagram of absorbent dressing of the present invention.
Specific embodiment
As shown in Figure 1, providing the schematic diagram of absorbent dressing by the embodiment of the present invention one, there is bubble in absorbent dressing
Cotton dressing layer (foamdressinglayer) 10 is formed with polyurethane film (polyurethanefilm) on foam dressing layer 10
20, the lower surface of foam dressing layer 10 is pasted on the wound 30 of skin 31.
In the present invention, foam dressing layer 10 is first by 0.5~0.3mol% polyethylene glycol
(polyethyleneglycol, PEG, Mn2000) and 0.5~0.7mol% polypropylene glycol (polypropyleneglycol,
PPG, Ma2000) composed by host agent formed mixture, then with addition 2.0~2.2mol% curing agent hexa-methylene diisocyanate
Ester (hexamethylene diisocyanate, HDI) reaction is formed in end, and made prepolymer is added functionality and adds
Agent and composition, foam is added to play chemical crosslink reaction and foaming, because the end of prepolymer is hexamethylene diisocyanate, just
Generate the foam dressing layer of gas permeability foaming body.
0.1~0.3mol%PEG400 in the case that composition, foam contains relative to 1.0mol% prepolymer, 0.4~
0.6mol%H2O, 0.1mol%NaHCO3,0.2~0.4mol%PEG600 and catalyst 0.01mol% tertiary amine
(tertiaryamines and DBTL).The hexamethylene diisocyanate of prepolymer will after mixing with the water in composition, foam
It generates CO2 gas and acts on and foam with saleratus power.
Functional additive is any one to multiple kind in sodium hyaluronate, collagen and chitin.Sodium hyaluronate and collagen egg
White is to have the function of moisturizing to wound, and polyethylene glycol and polypropylene glycol are that have the function of water suction to wound, and chitin is
Have the function of to wound it is antibacterial, therefore, hexamethylene diisocyanate and PEG and PPG there are also in sodium hyaluronate and collagen-
OH base reacts.In the chemical reaction of foaming, saleratus power can with-OH base in sodium hyaluronate and collagen, together with first
Shell element-NH2 does chemical crosslinking.These foaming bodies for foaming of chemical crosslinking can be attached on polyurethane film, and pass through traditional object
The effect of the additive of reason mixing addition up belongs to different in fact.
The thickness of polyurethane film is between 0.01~0.04mm, is preferred with 0.025mm.Polyurethane film aqueous vapor penetrance
MVTR is greater than 3000g/m2.day.Foaming body will generate highly-breathable and high absorbent capacity after being attached on polyurethane film
Wound dressing.The function of polyurethane film is to obstruct external bacterium infection, waterproof, antibacterial and regards carrier.
Example A:
Form foam dressing layer, wherein foam dressing layer is first by 0.3mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.7mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 forms mixture, then uses and 2.2mol% curing agent hexa-methylene diisocyanate is added
Ester reaction is formed in end, made prepolymer, be added functional additive and composition, foam rise chemical crosslink reaction and
Foaming just generates the foam dressing layer of gas permeability foaming body because the end of prepolymer is hexamethylene diisocyanate；Foam
Polyurethane film is formed on dressing layer, the lower surface of foam dressing layer is pasted on the wound of skin.
Example B:
Form foam dressing layer, wherein foam dressing layer is first by 0.4mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.6mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 forms mixture, then uses and 2.2mol% curing agent hexa-methylene diisocyanate is added
Ester reaction is formed in end, made prepolymer, be added functional additive and composition, foam rise chemical crosslink reaction and
Foaming just generates the foam dressing layer of gas permeability foaming body because the end of prepolymer is hexamethylene diisocyanate；Foam
Polyurethane film is formed on dressing layer, the lower surface of foam dressing layer is pasted on the wound of skin.
Example C:
Form foam dressing layer, wherein foam dressing layer is first by 0.5mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.5mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 forms mixture, then uses and 2.2mol% curing agent hexa-methylene diisocyanate is added
Ester reaction is formed in end, made prepolymer, be added functional additive and composition, foam rise chemical crosslink reaction and
Foaming just generates the foam dressing layer of gas permeability foaming body because the end of prepolymer is hexamethylene diisocyanate；Foam
Polyurethane film is formed on dressing layer, the lower surface of foam dressing layer is pasted on the wound of skin.
Example D:
Form foam dressing layer, wherein foam dressing layer is first by 0.3mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.7mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 forms mixture, then uses and 2.2mol% curing agent hexa-methylene diisocyanate is added
Ester reaction is formed in end, made prepolymer, be added functional additive and composition, foam rise chemical crosslink reaction and
Foaming just generates the foam dressing layer of gas permeability foaming body because the end of prepolymer is hexamethylene diisocyanate；Foam
Polyurethane film is formed on dressing layer, the lower surface of foam dressing layer is pasted on the wound of skin.
Example E:
Form foam dressing layer, wherein foam dressing layer is first by 0.3mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.7mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 and 0.1mol% sodium hyaluronate HA forms mixture, then uses and 2.2mol% hardening is added
The reaction of agent hexamethylene diisocyanate is formed in end, and functional additive and foaming combination is added in made prepolymer
Object plays chemical crosslink reaction and foaming, because the end of prepolymer is hexamethylene diisocyanate, just generates gas permeability foaming
The foam dressing layer of body；Polyurethane film is formed on foam dressing layer, the lower surface of foam dressing layer is pasted to the wound of skin
On.
Example F:
Form foam dressing layer, wherein foam dressing layer is first by 0.3mol% polyethylene glycol PEG2000 and 0.1mol%
Polyethylene glycol PEG400 and 0.2mol% polyethylene glycol PEG600 and 0.7mol% polypropylene glycol PPG2000 and 0.4mol% water with
Host agent composed by 0.1mol%NaHCO3 and 0.2mol% sodium hyaluronate HA forms mixture, then uses and 2.2mol% hardening is added
The reaction of agent hexamethylene diisocyanate is formed in end, and functional additive and foaming combination is added in made prepolymer
Object plays chemical crosslink reaction and foaming, because the end of prepolymer is hexamethylene diisocyanate, just generates gas permeability foaming
The foam dressing layer of body；Polyurethane film is formed on foam dressing layer, the lower surface of foam dressing layer is pasted to the wound of skin
On.
The property of foam dressing layer obtained in above-mentioned each example is as shown in the table:
The property for the absorbability auxiliary material layer that one embodiment A-F of table is obtained
The action and effect of embodiment
The difference of the present invention and traditional technology are: the present invention is added into functional additive, functional additive more
For any one to multiple kind in sodium hyaluronate, collagen and chitin, traditional technology is simultaneously not added with functional additive.In addition,
It is traditionally physical admixture for addition manner, the addition manner of the present invention is to use chemical crosslinking effect, foaming body
Molecular weight Mn be between 100,000 to 1,000,000.
The advantages of absorbent dressing of the invention is that have very good moisturizing and soaking effect, and soaking effect is to come from
PEG400 and PEG600 in the PEG and composition, foam of host agent.Sodium hyaluronate and collagen are that have moisturizing to wound
Function, and chitin is that have the function of antibacterial, and the purpose according to absorbent dressing institute expected design to wound, sodium hyaluronate,
Both one or any choosing can be arbitrarily selected in collagen and chitin or arbitrarily select three.
Above embodiments are only to express preferred embodiment of the invention, and but it cannot be understood as to this
The limitation of invention claim.It should be pointed out that not departing from this for those skilled in the art in the art
Under the premise of inventive concept, complex deformation and improvement can also be made, these are all within the scope of protection of the present invention.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of absorbent dressing characterized by comprising
Foam dressing layer, bottom are used to be attached to the wound of skin；And
Polyurethane film is arranged on the foam dressing layer；
Wherein:
The foam auxiliary material layer is added by functional additive and composition, foam to be formed into prepolymer,
The prepolymer is to be added by the curing agent hexamethylene diisocyanate of 2.0~2.2mol% to host agent to react to obtain
, end has hexamethylene diisocyanate,
The host agent is made of the polyethylene glycol of 0.5~0.3mol% and the polypropylene glycol of 0.5~0.7mol%.
2. absorbent dressing according to claim 1, it is characterised in that:
Wherein, in the foam auxiliary material layer, when the prepolymer is 1.0mol%, the composition, foam contains 0.1~
The polyethylene glycol 400 of 0.3mol%, the water of 0.4~0.6mol%, the sodium bicarbonate of 0.1mol%, 0.2~0.4mol% it is poly-
The tertiary amine of ethylene glycol 600 and 0.01mol%.
3. absorbent dressing according to claim 2, it is characterised in that:
Wherein, the water in the hexamethylene diisocyanate of the prepolymer and the composition, foam generates carbon dioxide gas
Body, and then act on and foam with the sodium bicarbonate.
4. absorbent dressing according to claim 1, it is characterised in that:
Wherein, the functional additive is any one to multiple kind in sodium hyaluronate, collagen and chitin.
5. absorbent dressing according to claim 1, it is characterised in that:
Wherein, the thickness of the polyurethane film is between 0.01~0.04mm, and the polyurethane film aqueous vapor penetrance is greater than
Daily 3000 gram/square centimeter.
6. absorbent dressing according to claim 5, it is characterised in that:
Wherein, the thickness of the polyurethane film is 0.025mm.
7. a kind of manufacturing method of absorbent dressing characterized by comprising
The polyethylene glycol of 0.5~0.3mol% and the polypropylene glycol of 0.5~0.7mol% are mixed to form host agent；
2.0~2.2mol% curing agent hexamethylene diisocyanate to the host agent is added to react so that prepolymer is made, wherein
The end of the prepolymer has hexamethylene diisocyanate；
Functional additive and composition, foam is added and generates the foam dressing layer to react；And
Polyurethane film is formed on the foam dressing layer, wherein the bottom of the foam dressing layer is used to be pasted to the wound of skin
Mouthful.
8. the manufacturing method of absorbent dressing according to claim 7, it is characterised in that:
Wherein, the functional additive is any one to multiple kind in sodium hyaluronate, collagen and chitin.
9. the manufacturing method of absorbent dressing according to claim 7, it is characterised in that:
Wherein, in the foam auxiliary material layer, when the prepolymer is 1.0mol%, the composition, foam contains 0.1~
The polyethylene glycol 400 of 0.3mol%, the water of 0.4~0.6mol%, the sodium bicarbonate of 0.1mol%, 0.2~0.4mol% it is poly-
The tertiary amine of ethylene glycol 600 and 0.01mol%.
10. the manufacturing method of absorbent dressing according to claim 8, it is characterised in that:
Wherein, the water in the hexamethylene diisocyanate of the prepolymer and the composition, foam generates carbon dioxide gas
Body, and then act on and foam with sodium bicarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594047.9A CN109276739A (en) | 2017-07-20 | 2017-07-20 | Absorbent dressing and its manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594047.9A CN109276739A (en) | 2017-07-20 | 2017-07-20 | Absorbent dressing and its manufacturing method |
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| CN109276739A true CN109276739A (en) | 2019-01-29 |
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| CN201710594047.9A Pending CN109276739A (en) | 2017-07-20 | 2017-07-20 | Absorbent dressing and its manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801285A (en) * | 2020-06-22 | 2021-12-17 | 昆山优瑞森医疗科技有限公司 | Preparation method of polyurethane foam dressing and wound dressing patch |
| US11970569B2 (en) | 2020-06-22 | 2024-04-30 | Tronjen Medical Technology Inc. | Polyurethane foam sponge and wound dressing having the same |
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