CN111775537A - Processing method of medical water absorption pad material - Google Patents

Processing method of medical water absorption pad material Download PDF

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Publication number
CN111775537A
CN111775537A CN202010439905.4A CN202010439905A CN111775537A CN 111775537 A CN111775537 A CN 111775537A CN 202010439905 A CN202010439905 A CN 202010439905A CN 111775537 A CN111775537 A CN 111775537A
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China
Prior art keywords
parts
water absorption
processing method
pad material
absorption pad
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Pending
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CN202010439905.4A
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Chinese (zh)
Inventor
谢海朋
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Shen Bairong
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Shen Bairong
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Priority to CN202010439905.4A priority Critical patent/CN111775537A/en
Publication of CN111775537A publication Critical patent/CN111775537A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • 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
    • 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
    • A61L15/24—Macromolecular compounds obtained 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
    • A61L15/22—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
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    • 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
    • A61L15/28—Polysaccharides or their derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
    • A61L15/42—Use of materials characterised by their function or physical properties
    • 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
    • A61L15/42—Use of materials characterised by their function or physical properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/23—Carbohydrates
    • A61L2300/236—Glycosaminoglycans, e.g. heparin, hyaluronic acid, chondroitin
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/412—Tissue-regenerating or healing or proliferative agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2535/00—Medical equipment, e.g. bandage, prostheses or catheter
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/24—Homopolymers or copolymers of amides or imides
    • C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
    • 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
    • C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2401/02—Cellulose; Modified cellulose
    • 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
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    • 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
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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    • 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
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
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    • C08K7/14—Glass

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Abstract

The invention discloses a processing method of a medical water absorption pad material, which comprises the following components in parts by weight: 20-45 parts of high-molecular water-absorbing fiber, 12-25 parts of polyester fiber, 20-25 parts of cellulose, 1-3 parts of chitosan, 20-30 parts of polyacrylamide and 12-18 parts of polyester chopped fiber, wherein the water-absorbing pad material comprises the following components in parts by weight: 25 parts of high-molecular water-absorbing fiber, 18 parts of polyester fiber, 22 parts of cellulose, 1 part of chitosan, 25 parts of polyacrylamide and 13 parts of polyester chopped fiber; according to the processing method of the medical water absorption pad material, the cellulose and the chitosan are added into the material, the cellulose has the effect of adsorbing a large amount of water, the instant water absorption layer is additionally arranged, so that the prepared water absorption pad can completely absorb the water, the leakage phenomenon is avoided, meanwhile, only the chitosan is added into the material, the infection of a patient can be reduced when the medical water absorption pad material is used, the effect of assisting in promoting wound healing is also achieved, and the operation process is simple.

Description

Processing method of medical water absorption pad material
Technical Field
The invention belongs to the technical field of adhesive tape processing, and particularly relates to a processing method of a medical absorbent pad material.
Background
In real life, the wound is often scratched by a knife, wrestled and knocked, after the wound needs to be disinfected, medical gauze is used for wrapping, compared with common cloth or paper towels, the medical gauze has the impermeable condition, and a water absorption pad is added into the medical gauze and can lock blood, so that large blood of the wound is prevented from leaking to the outer surface, and the frequent replacement is reduced;
the existing medical water absorption pad has certain defects, the water absorption effect of the existing medical gauze is poor, the patient needs to be frequently replaced when the wound is too large and the bleeding is too much, the patient needs to suffer from pain caused by the touch of the wound when the patient needs to be replaced, the blood has viscosity during replacement, the gauze can be connected with the flesh, the discomfort of the patient is increased, and inconvenience is brought to the use.
Disclosure of Invention
The invention mainly aims to provide a processing method of a medical absorbent pad material, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
the processing method of the medical water absorption pad material is characterized in that the water absorption pad material comprises the following components by weight: 20-45 parts of high-molecular water-absorbing fiber, 12-25 parts of polyester fiber, 20-25 parts of cellulose, 1-3 parts of chitosan, 20-30 parts of polyacrylamide and 12-18 parts of polyester chopped fiber.
Preferably, the absorbent pad material comprises the following components in parts by weight: 25 parts of high-molecular water-absorbing fiber, 18 parts of polyester fiber, 22 parts of cellulose, 1 part of chitosan, 25 parts of polyacrylamide and 13 parts of polyester chopped fiber.
Preferably, the absorbent pad material comprises the following components in parts by weight: 30 parts of high-molecular water-absorbing fiber, 13 parts of polyester fiber, 20 parts of cellulose, 1.5 parts of chitosan, 26 parts of polyacrylamide and 12 parts of polyester chopped fiber.
Preferably, the processing technology of the absorbent pad material comprises the following steps:
step one, preparing a water absorption layer, namely weighing materials according to weight components, mixing high-molecular water absorption fibers with polyester fibers, and sequentially opening, carding, lapping, shaping and drying the mixed fibers to obtain the water absorption layer of the non-woven fabric;
step two, preparing an instant water absorption layer, mixing polyacrylamide and polyester chopped fibers, then carrying out melt extrusion molding through a screw extruder, then putting the molded blank into cellulose and chitosan for secondary impregnation, wherein the impregnation temperature is 30-35 ℃, the rolling residual rate is 50-68%, drying and rolling to obtain the instant water absorption layer;
step three, pressing, namely placing the upper end of the water absorption layer of the non-woven fabric obtained in the step one on the instant water absorption layer obtained in the step two, placing an isolation layer film on the upper end of the instant water absorption layer, and then pressing through heating temperature to complete the processing method of the medical water absorption pad material, so as to obtain the medical water absorption pad with good water absorption;
preferably, the temperature is set to be 30-45 ℃ when the shaping and drying are carried out in the first step, the time is 5-8min, and then the mixture is taken out and aired in a room with normal temperature for natural air drying.
Preferably, after the soaking and binding are carried out twice in the step two, the soaking and binding are carried out for 2-3min by adopting clean water, then the rinsing is carried out repeatedly for 1-3 times in a rinsing mode, and the time duration of each rinsing is 1-2 min.
Preferably, the isolating layer film in the third step is mainly prepared from the following components in parts by weight: 50-60 parts of polyethylene, 10-15 parts of sulfonated oil, 8-15 parts of epoxy resin, 15-18 parts of glass fiber and 1-3 parts of ethanol.
Preferably, the temperature is controlled to be between 120 ℃ and 130 ℃ during the pressing and heating in the third step.
Preferably, the thickness of the isolation layer film in the third step is 1-1.5mm, the thickness of the water absorption layer is 2-5mm, and the thickness of the instant water absorption layer is 1.5-2.0 mm.
Compared with the prior art, the invention has the following beneficial effects: this processing method of medical absorbent pad material, through add cellulose and chitosan in the material, the cellulose has the effect of adsorbing a large amount of moisture, and prepared layer and the layer that absorbs water in the twinkling of an eye, make the absorbent pad of preparation have the effect of multiple absorption, make the gauze of wrapping the wound of preparation can hold blood moisture completely, the phenomenon of seepage can not appear, the condition of frequent change has been avoided, the chitosan of interpolation in the material simultaneously, can make the patient reduce the infection when using and take place, also play the supplementary effect that promotes the surface of a wound healing, and set up the barrier film in the upper end of absorbent pad, make the patient be in the change gauze that can be quick, patient's pain has been reduced, and the technology is simple, and convenient for operation has good use prospect.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
The water absorption pad material comprises the following components in parts by weight: 25 parts of high-molecular water-absorbing fiber, 18 parts of polyester fiber, 22 parts of cellulose, 1 part of chitosan, 25 parts of polyacrylamide and 13 parts of polyester chopped fiber, during processing, firstly preparing a water-absorbing layer, weighing the materials according to the weight components, then mixing the high-molecular water-absorbing fiber with the polyester fiber, sequentially opening, carding, lapping, shaping and drying the mixed fiber, setting the temperature at 35 ℃ during shaping and drying for 5min, taking out and airing in a room at normal temperature for natural air drying to obtain the water-absorbing layer of the non-woven fabric; then preparing an instant water absorption layer, mixing polyacrylamide and polyester chopped fibers, then carrying out melt extrusion molding through a screw extruder, then putting the molded blank into cellulose and chitosan for secondary dipping, wherein the dipping temperature is 30-35 ℃, the rolling residual rate is 50-68%, after twice dipping, soaking for 2min by using clean water, then repeatedly rinsing for 2 times by using a rinsing mode, the rinsing time for each time is 1min, drying and rolling to obtain the instant water absorption layer; and finally, pressing, namely placing the upper end of the water absorption layer of the non-woven fabric obtained in the step one in the step two to obtain an instant water absorption layer, placing an isolation layer film at the upper end of the instant water absorption layer, wherein the thickness of the isolation layer film is 1mm, the thickness of the water absorption layer is 2mm, the thickness of the instant water absorption layer is 1.5mm, and the isolation layer film is mainly formed by the following components in parts by weight: 50 parts of polyethylene, 10 parts of sulfonated oil, 8 parts of epoxy resin, 15 parts of glass fiber and 1 part of ethanol, and then pressing the materials at a heating temperature, wherein the optimal temperature is controlled to be 120 ℃ during pressing and heating, so that the processing method of the medical water absorption pad material can be completed.
The gauze prepared by the method is added with 5 ml of water, timing is started, 2-3 ml of water remains on the gauze after 2s, and the gauze is completely sucked after 5s of timing, has no residual water drops on the gauze and has good sucking effect.
Comparative example
The medical gauze prepared by the traditional method is added with 5 ml of water, timing is started, 3-4 ml of water remains on the gauze after 2s, the remaining water remains on the upper end of the gauze after 5s of timing, no water drops remain on the gauze after 7-8s of timing, and the suction effect is common.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The processing method of the medical water absorption pad material is characterized in that the water absorption pad material comprises the following components by weight: 20-45 parts of high-molecular water-absorbing fiber, 12-25 parts of polyester fiber, 20-25 parts of cellulose, 1-3 parts of chitosan, 20-30 parts of polyacrylamide and 12-18 parts of polyester chopped fiber.
2. The processing method of the medical water absorption pad material as claimed in claim 1, wherein the processing method comprises the following steps: the water absorption pad material comprises the following components in parts by weight: 25 parts of high-molecular water-absorbing fiber, 18 parts of polyester fiber, 22 parts of cellulose, 1 part of chitosan, 25 parts of polyacrylamide and 13 parts of polyester chopped fiber.
3. The processing method of the medical water absorption pad material as claimed in claim 1, wherein the processing method comprises the following steps: the water absorption pad material comprises the following components in parts by weight: 30 parts of high-molecular water-absorbing fiber, 13 parts of polyester fiber, 20 parts of cellulose, 1.5 parts of chitosan, 26 parts of polyacrylamide and 12 parts of polyester chopped fiber.
4. The processing method of the medical water absorption pad material as claimed in claim 1, wherein the processing method comprises the following steps: the processing technology of the absorbent pad material comprises the following steps:
step one, preparing a water absorption layer, namely weighing materials according to weight components, mixing high-molecular water absorption fibers with polyester fibers, and sequentially opening, carding, lapping, shaping and drying the mixed fibers to obtain the water absorption layer of the non-woven fabric;
step two, preparing an instant water absorption layer, mixing polyacrylamide and polyester chopped fibers, then carrying out melt extrusion molding through a screw extruder, then putting the molded blank into cellulose and chitosan for secondary impregnation, wherein the impregnation temperature is 30-35 ℃, the rolling residual rate is 50-68%, drying and rolling to obtain the instant water absorption layer;
and step three, pressing, namely placing the upper end of the water absorption layer of the non-woven fabric obtained in the step one on the instant water absorption layer obtained in the step two, placing an isolation layer film on the upper end of the instant water absorption layer, and then pressing at a heating temperature to complete the processing method of the medical water absorption pad material, so as to obtain the medical water absorption pad with good water absorption.
5. The processing method of the medical water absorption pad material as claimed in claim 4, wherein the processing method comprises the following steps: setting the temperature at 30-45 ℃ during shaping and drying in the first step, keeping the time for 5-8min, taking out and airing in a room at normal temperature for natural air drying.
6. The processing method of the medical water absorption pad material as claimed in claim 4, wherein the processing method comprises the following steps: and in the second step, after twice soaking, soaking for 2-3min by using clean water, and then repeatedly rinsing for 1-3 times by using a rinsing mode, wherein the rinsing time is 1-2min each time.
7. The processing method of the medical water absorption pad material as claimed in claim 4, wherein the processing method comprises the following steps: the isolating layer film in the third step is mainly prepared from the following components in parts by weight: 50-60 parts of polyethylene, 10-15 parts of sulfonated oil, 8-15 parts of epoxy resin, 15-18 parts of glass fiber and 1-3 parts of ethanol.
8. The processing method of the medical water absorption pad material as claimed in claim 4, wherein the processing method comprises the following steps: the temperature is controlled to be between 120 ℃ and 130 ℃ during pressing and heating in the third step.
9. The processing method of the medical water absorption pad material as claimed in claim 4, wherein the processing method comprises the following steps: in the third step, the thickness of the isolation layer film is 1-1.5mm, the thickness of the water absorption layer is 2-5mm, and the thickness of the instant water absorption layer is 1.5-2.0 mm.
CN202010439905.4A 2020-05-22 2020-05-22 Processing method of medical water absorption pad material Pending CN111775537A (en)

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CN103110477A (en) * 2013-02-25 2013-05-22 苏州艾美医疗用品有限公司 Manufacturing method of composite medical non-woven fabric absorbent pads
CN103861144A (en) * 2014-04-04 2014-06-18 杭州天诚药业有限公司 Medical dressing for promoting wound healing and preparation method thereof
CN103876890A (en) * 2014-03-25 2014-06-25 深圳市博立生物材料有限公司 Wet dressing
CN104324412A (en) * 2014-10-24 2015-02-04 浙江奥林医疗用品有限公司 Bamboo chitosan functional dressing
CN105030418A (en) * 2015-06-24 2015-11-11 吴江富凯医用卫生用品有限公司 Absorbent pad for bandages
EP3023455A1 (en) * 2014-11-21 2016-05-25 Fundacíon Tecnalia Research & Innovation Porous cellulosic materials and process for their preparation
WO2017079764A1 (en) * 2015-11-06 2017-05-11 Bkr Ip Holdco Llc Method for the attenuation enhancement of absorbent materials used in both passive and active transdermal drug delivery systems
CN110893246A (en) * 2019-12-06 2020-03-20 厦门凝赋生物科技有限公司 Preparation method of super absorbent fiber wound dressing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993011803A1 (en) * 1991-12-18 1993-06-24 M.U.R.S.T. Non-woven fabric material comprising hyaluronic acid derivatives
CN103110477A (en) * 2013-02-25 2013-05-22 苏州艾美医疗用品有限公司 Manufacturing method of composite medical non-woven fabric absorbent pads
CN103876890A (en) * 2014-03-25 2014-06-25 深圳市博立生物材料有限公司 Wet dressing
CN103861144A (en) * 2014-04-04 2014-06-18 杭州天诚药业有限公司 Medical dressing for promoting wound healing and preparation method thereof
CN104324412A (en) * 2014-10-24 2015-02-04 浙江奥林医疗用品有限公司 Bamboo chitosan functional dressing
EP3023455A1 (en) * 2014-11-21 2016-05-25 Fundacíon Tecnalia Research & Innovation Porous cellulosic materials and process for their preparation
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WO2017079764A1 (en) * 2015-11-06 2017-05-11 Bkr Ip Holdco Llc Method for the attenuation enhancement of absorbent materials used in both passive and active transdermal drug delivery systems
CN110893246A (en) * 2019-12-06 2020-03-20 厦门凝赋生物科技有限公司 Preparation method of super absorbent fiber wound dressing

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Application publication date: 20201016